A five-axis dual-swing head, comprising: a motorized spindle (1); an A-axis mechanism, which comprises an A-axis mechanism body (4), an A-axis servo electric motor (9), an A-axis speed reducer (5) and an A-axis transmission mechanism, the A-axis servo electric motor (9) and the A-axis speed reducer (5) being arranged on the A-axis mechanism body (4), the A-axis servo electric motor (9) being connected to an input end of the A-axis speed reducer (5) by means of the A-axis transmission mechanism, and the motorized spindle (1) being arranged at an output end of the A-axis speed reducer (5); and a C-axis mechanism, which comprises a C-axis mechanism body (12), a C-axis servo electric motor (15), a C-axis speed reducer (11) and a C-axis transmission mechanism, the C-axis servo electric motor (15) and the C-axis speed reducer (11) being arranged on the C-axis mechanism body (12), the C-axis servo electric motor (15) being connected to an input end of the C-axis speed reducer (11) by means of the C-axis transmission mechanism, and the A-axis mechanism body (4) being arranged at an output end of the C-axis speed reducer (11). Further comprised is a machine tool comprising the five-axis dual-swing head. By means of configuring the speed reduction ratio of the A-axis transmission mechanism to the C-axis transmission mechanism or matching servo electric motors which have different output powers according to requirements, the swing head can output a large torque in the A/C-axes, thereby meeting the diversified machining requirements for parts.
B23Q 1/54 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec deux guidages en rotation uniquement
B23Q 1/25 - Supports mobiles ou réglables d'outils ou de pièces
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 1/70 - Éléments fixes ou mobiles supportant des broches de travail pour fixer des outils ou des pièces
H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
H02K 7/14 - Association structurelle à des charges mécaniques, p. ex. à des machines-outils portatives ou des ventilateurs
An external rotation and inner cooling tool shank, comprising: a machine body assembly (1); a tool shank body (2) supported on the machine body assembly (1) by means of a bearing (4), wherein an inner cavity (23) is arranged at the lower end of the tool shank body (2), and a wall of the inner cavity (23) is provided with a water inlet hole (24); and a hydrostatic pressure bushing (3) connected to the machine body assembly (1) and sleeved around the outer peripheral surface of the tool shank body (2), wherein the hydrostatic pressure bushing (3) is in clearance fit with the tool shank body (2), the hydrostatic pressure bushing (3) is provided with a first water passage hole (31) connected to the water inlet hole (24), an inner wall surface of the hydrostatic pressure bushing (3) is provided with a plurality of sectional cavities (32), the plurality of sectional cavities (32) are distributed at intervals in the circumferential direction, the hydrostatic pressure bushing (3) is provided with a second water passage hole (33) connected to the sectional cavities (32), and both the first water passage hole (31) and the second water passage hole (33) are connected to a water channel (13) of the machine body assembly (1).
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
Disclosed in the present invention are an air bearing spindle and a drilling rig, comprising: a machine body assembly provided with an axial inner hole; and a shaft core assembly provided with a rotor and a flying disc, and supported at the axial inner hole by means of an air bearing, wherein the air bearing comprises an air bearing motor assembly and an air thrust bearing assembly, the air bearing motor assembly comprises a stator core, the stator core is located on the outer side of the rotor and provided with a coil winding and radial air supply holes, the radial air supply holes are distributed along the circumferential direction of the stator core and aerated to form a static-pressure air film supporting the shaft core assembly, and the air thrust bearing assembly matches the flying disc. According to the present invention, a radial air bearing is highly integrated with a motor, so that the functions of the air bearing are achieved, and the functions of the motor are also achieved; and a group of parts is reduced accordingly, so that the structure is more compact, the space utilization is more reasonable, and the condition is created for the improvement of the power of the spindle under the same volume.
A motor spindle and a drilling machine, comprising: a body assembly (1), comprising an aluminum alloy body (11) and a steel sleeve (12), the steel sleeve (12) being sleeved outside the aluminum alloy body (11) and forming a whole piece with the aluminum alloy body (11), and the aluminum alloy body (11) being provided with an axial hole; a shaft core assembly (2), provided in the axial hole and supported on the aluminum alloy body (11) by means of an upper bearing assembly (4) and a lower bearing assembly (5); and a motor assembly (3), configured to drive the shaft core assembly (2) to rotate. The upper bearing assembly (4) comprises an upper bearing seat (41) and an upper bearing (42); the lower bearing assembly (5) comprises a lower bearing seat (51) and a lower bearing (52); the upper bearing seat (41) and/or the lower bearing seat (51) are integrally manufactured together with the aluminum alloy body (11).
An electric spindle and a machine tool, comprising: a machine body assembly (1), provided with an air inlet (11) and a stator (12); a spindle core assembly (2), supported on the machine body assembly (1) by means of an upper bearing assembly (4) and a lower bearing assembly (5), the spindle core assembly (2) comprising a spindle core (21), a rotor (22), a pull rod assembly (24), and a chuck (23); and a push rod (3), extending into a spindle core inner hole from the upper end of the spindle core (21); the upper bearing assembly (4) comprises an upper bearing seat (41), an upper bearing (42), and a bearing pre-tensioning component (43), a closed inner cavity (44) being defined inside the upper bearing seat (41), the spindle core inner hole being in communication with the inner cavity (44), the upper bearing (42) and the bearing pre-tensioning component (43) being arranged in the inner cavity (44), the bearing pre-tensioning component (43) being supported between the upper bearing (42) and the upper bearing seat (41), the upper bearing seat (41) being provided with a piston chamber (46), the piston chamber (46) being in communication with the air inlet (11), a floating component (47) being disposed in the piston chamber (46), the floating component (47) abutting the bearing pre-tensioning component (43), and the spindle core inner hole and/or the pull rod assembly (24) and/or the push rod (3) being provided with a helical structure, in order to discharge the air in the inner cavity (44) outside via the spindle core inner hole after the spindle core assembly (2) is rotated.
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées
An air bearing spindle and a lathe. The air bearing spindle comprises: a machine body assembly (1); and a spindle core assembly (2) supported on the machine body assembly (1) by means of a bearing assembly, a ball head (21) being provided at the lower end of the spindle core assembly (2), the spindle core assembly (2) being provided with a flying disc (22) above the ball head (21), and the flying disc (22) being connected to the ball head (21) by means of a cylindrical surface extending axially, wherein the bearing assembly comprises an air bearing assembly (3) and a thrust bearing (4); the air bearing assembly (3) has a spherical surface portion (31) fitting with the ball head (21), a cylindrical surface portion (32) fitting with the cylindrical surface, and a flange portion (33) fitting with the lower end surface of the flying disc (22), each of the spherical surface portion (31), the cylindrical surface portion (32) and the flange portion (33) of the air bearing assembly (3) is provided with an air outlet hole; the thrust bearing (4) is supported on the upper end surface of the flying disc (22), and the thrust bearing (4) comprises a thrust bearing seat (41) and a rolling body (42).
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 1/70 - Éléments fixes ou mobiles supportant des broches de travail pour fixer des outils ou des pièces
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
An electric spindle, comprising a machine body assembly (1) and a spindle core assembly, wherein the machine body assembly (1) is provided with an axial inner hole; a front bearing seat (2) comprises an embedded section (20) embedded into the axial inner hole; a front end cap (3) is arranged at a front end of the front bearing seat (2); the front bearing seat (2) is provided with a first cooling water channel; a rear bearing assembly is provided with a second cooling water channel (51); and a third cooling water channel (14) is arranged in the machine body assembly (1). The first cooling water channel comprises: a plurality of first waist-shaped water channels (21) arranged on an outer side surface of the embedded section (20) and distributed at intervals in a circumferential direction of the embedded section, wherein the first waist-shaped water channels (21) match and are fitted with the axial inner hole; a plurality of second waist-shaped water channels (24) arranged at a front end surface of the front bearing seat (2) and distributed to be staggered with the first waist-shaped water channels (21) in the circumferential direction, wherein the second waist-shaped water channels (24) match and are fitted with the front end cap (3); and a plurality of axial water channels (23) connected among the first waist-shaped water channels (21) and the second waist-shaped water channels (24) distributed in a staggered manner, wherein the first waist-shaped water channels (21), the axial water channels (23) and the second waist-shaped water channels (24) form the first cooling water channel surrounding a front bearing (7). The first cooling water channel is in communication with the second cooling water channel (51), and the third cooling water channel (14) is in communication with the second cooling water channel (51). The first cooling water channel is arranged such that the heat dissipation area of the front bearing is increased and a cooling effect is significant; and in addition, the structure is simple and molding is convenient. Further disclosed is a machine tool comprising the electric spindle.
An electric spindle core assembly, an electric spindle and a machine tool. The electric spindle core assembly comprises a spindle core (1), a pull lever (2) and a pull claw assembly (3), wherein the spindle core (1) is provided with an axial inner hole; the pull lever (2) is disposed in the axial inner hole; the front end of the pull lever (2) is provided with a slide core (4) matching the pull claw assembly (3); an oil cylinder assembly is disposed in the axial inner hole behind the pull claw assembly (3); the oil cylinder assembly comprises a piston base (6), a pull lever piston (7) and a pull lever end cover (8); the pull lever (2) penetrates the piston base (6) to connect to the pull lever piston (7); a first oil cavity (9) is formed between the pull lever piston (7) and the pull lever end cover (8); a second oil cavity (10) is formed between the pull lever piston (7) and the piston base (6); the spindle core (1) is provided with a first oil path (11) in communication with the first oil cavity (9); and the spindle core (1) is provided with a second oil path (12) in communication with the second oil cavity (10).
A motor spindle and a machine tool, comprising: a motor assembly, provided with a front bearing seat assembly and a rear bearing seat assembly; and a shaft core assembly, having a front end supported on the front bearing seat assembly by means of a front bearing, and a rear end supported on the rear bearing seat assembly by means of a rear bearing. The rear bearing seat assembly comprises a rear bearing seat outer sleeve and a rear bearing seat; the rear bearing seat outer sleeve is connected to the motor assembly; an outer ring of the rear bearing is supported on the rear bearing seat; the rear bearing seat is fitted with the rear bearing seat outer sleeve; the rear bearing seat can float axially with respect to the rear bearing seat outer sleeve; the rear bearing seat outer sleeve is provided with a first cooling medium flow channel, the rear bearing seat is provided with a second cooling medium flow channel, and the first cooling medium flow channel is communicated with the second cooling medium flow channel; the front bearing seat assembly is provided with a third cooling medium flow channel. The rear bearing can realize the same cooling effect as the front bearing, thereby prolonging the service life of the rear bearing.
A main shaft oil-gas lubrication structure, a main shaft and a machine tool, comprising: a machine body (1); a shaft core (2), supporting the machine body (1) by means of a bearing (5); a bearing oil jet separator (3), fitted on the machine body (1), wherein the outer circular surface of the bearing oil jet separator (3) is in contact with the machine body (1), the outer circular surface of the bearing oil jet separator (3) is provided with an oil inlet ring groove (31) and an oil return ring groove (32), the machine body (1) is provided with an oil inlet channel (11) that is in communication with the oil inlet ring groove (31) and an oil return channel (12) that is in communication with the oil return ring groove (32), and the bearing oil jet separator (3) is provided with multiple oil injection nozzles (33) guided by the oil inlet ring groove (31) toward the bearing (5); an oil absorbing assembly (4), comprising an oil absorbing device (41) , wherein the oil absorbing device (41) is provided with an oil drain hole (42) and a vent hole (43), the vent hole (43) intersects with the oil drain hole (42) at an angle, the oil drain hole (42) is in communication with the oil return channel (12) by means of an oil outlet pipe (44), and the vent hole (43) is connected to an air inlet pipe (45).
An air bearing spindle, comprising: a machine body (1) provided with a shaft hole, a shaft core (2), a motor assembly (7) used for driving the shaft core (2) to rotate, an air bearing (3), a thrust bearing (4), and an intake channel (6). The shaft core (2) is arranged in the shaft hole in a penetrating manner, and is provided with a thrust flying disc (21); the air bearing (3) is disposed in the shaft hole, and matches the outer circle bearing surface of the shaft core (2); the thrust bearing (4) comprises a front thrust bearing (41) and a rear thrust bearing (42), which respectively match the front and rear surfaces of the thrust flying disc (21); the intake channel (6) comprises a main intake channel (61), a first branch intake channel (62), and a second branch intake channel (63), the first and second branch intake channels (62, 63) are respectively connected to the front and rear thrust bearings (41, 42), and the apertures of the first and second branch intake channels (62, 63) are 0.8-1.0 mm. The air bearing spindle can effectively prevent the thrust bearing from generating air vibration, thereby greatly improving the rigidity and dynamic rotation precision of the spindle. Also provided is a grinding machine tool comprising the air bearing spindle.
An air-bearing motorized spindle and a machine tool. The air-bearing motorized spindle comprises: a machine body assembly; a spindle core assembly having a flying disc and being supported and suspended on the machine body assembly by means of a thrust bearing assembly and an air bearing assembly, with a first end of the spindle core assembly forming a power output end, and a second end of the spindle core assembly forming a power input end; and an electric motor assembly arranged at the power input end and comprising a stator and a copper squirrel cage, with the stator being connected to the machine body assembly, and the copper squirrel cage being combined with the spindle core assembly and forming a cylindrical surface which is coaxial with the spindle core assembly.
Disclosed in the present invention is a bidirectional angle head, comprising: an angle shaft box having an input shaft hole and an output shaft hole; an input shaft disposed in the input shaft hole and provided with a first bevel gear; and an output shaft assembly comprising an output shaft, a bearing seat assembly, and a second bevel gear, wherein the output shaft, the bearing seat assembly, and the second bevel gear are assembled into a whole. The output shaft assembly is mounted into the angle shaft box from one end of the output shaft hole; the second bevel gear is meshed with the first bevel gear; and at both ends of the output shaft hole, a first output end and a second output end are formed on the output shaft. During assembly, firstly, the output shaft, the bearing seat assembly, and the second bevel gear are assembled into a whole, then the output shaft assembly is mounted into the angle shaft box from one end of the output shaft hole, and then two output ends are formed for bidirectional output; a dual head structure is capable of machining at the same time, so that the machining efficiency is doubled. The structural form of the output shaft assembly is used for overall disassembly and assembly, so that the disassembly and assembly, the maintenance, and the adjustment of a combined gap between the bevel gears are also convenient.
B23Q 5/04 - Entraînement des principaux organes de travail des arbres rotatifs, p. ex. des broches de travail
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23Q 3/157 - Agencements pour insérer ou retirer automatiquement les outils les outils rotatifs
B23Q 1/25 - Supports mobiles ou réglables d'outils ou de pièces
14.
AIR FLOATING GEAR SHAPING FIXTURE AND GEAR SHAPING MACHINE
Disclosed in the present invention are an air floating gear shaping fixture and a gear shaping machine, comprising: an air floating component, provided with a positioning inner hole, a plurality of air outlet holes being provided in the hole wall of the positioning inner hole and distributed in the circumferential direction of the positioning inner hole; a rigid gear supporting structure, used for limiting an axial position of a rigid gear in the positioning inner hole; and a clamping mechanism, used for clamping the rigid gear in the positioning inner hole to the rigid gear supporting structure. When the clamping mechanism is in a loosening state, the rigid gear is placed in the positioning inner hole of the air floating component, compressed air is sprayed out from the air outlet holes, the rigid gear floats and is centered, and then the rigid gear is clamped by the clamping mechanism. According to the technical solution, by adoption of air floating centering, the centering speed is fast, accuracy is high, and labor intensity of workers is greatly reduced. The air floating gear shaping fixture further has a self-cleaning function, that is, after one rigid gear is machined, the rigid gear is taken out, then air of the air floating can be opened, and iron scraps remaining on the air floating component and the rigid gear supporting structure can be blown out, thereby ensuring the clamping accuracy of the next rigid gear.
B23F 23/06 - Agencements pour la fixation sur mandrins
B23Q 3/08 - Moyens de fixation de la pièce autres que les moyens actionnés mécaniquement
B23D 7/00 - Machines à raboter, ou à mortaiser, caractérisées uniquement par la structure d'organes particuliers
B23Q 3/18 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine pour positionner uniquement
A hydraulic toolholder, comprising: a toolholder body (1) provided with a positioning inner hole (11) and a pressure regulating hole (12); an expansion sleeve (2) arranged within the positioning inner hole (11), the two ends of the expansion sleeve (2) being hermetically connected to tool holder body (1), the outer surface of the expansion sleeve (2) being provided with a first annular groove (21), a compression ring (22) and a second annular groove (23), the compression ring (22) being in interference fit with the positioning inner hole (11). A first hydraulic cavity (24) is defined between the first ring groove (21) and the positioning inner hole (11), a second hydraulic cavity (25) is defined between the second annular groove (23) and the positioning inner hole (11), and an oil passage (20) is arranged on the compression ring (22) for communicating the first hydraulic cavity (24) and the second hydraulic cavity (25). A pressure regulating component connected to the pressure regulating hole (12) is used for regulating the hydraulic oil pressure in the first hydraulic cavity (24) and the second hydraulic cavity (25); a plurality of precision regulating screws (3) connected to the tool holder body (1) are distributed in the circumferential direction of the positioning inner hole (11), the precision regulating screws directly or indirectly abut against the compression ring (22). The tool holder has characteristics of high tool clamping precision, adjustable tool clamping precision, excellent machining precision stability etc.
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
16.
MOTORIZED SPINDLE CORE COMPONENT, AIR BEARING MOTORIZED SPINDLE AND DRILLING MACHINE
A motorized spindle core component, comprising: a spindle core (5), having a spindle core inner hole (51); a tool clamping mechanism, comprising a clamp head inner core (71) and a clamp head sleeve (72), the clamp head sleeve (72) being connected to an end part of the spindle core (5); a spindle master mechanism (8), comprising a sliding sleeve (82) and a sliding sleeve core (83), the sliding sleeve (82) being arranged in the spindle core inner hole (51), the sliding sleeve (82) being fitted over the external side of the sliding sleeve core (83), the sliding sleeve (82) having a conical inner hole, the sliding sleeve core (83) having an external conical surface matching the conical inner hole, and the sliding sleeve core (83) being connected to the clamp head inner core (71); and an elastic part (81), which is arranged between the sliding sleeve (82) and the clamp head sleeve (72) and abuts against the sliding sleeve (82). Also disclosed are an air bearing motorized spindle and a drilling machine comprising the motorized spindle core component. In the air bearing motorized spindle and the drilling machine, by adopting a spindle master structure capable of compensating fitting variable quantity caused by temperature and centrifugal expansion changes, the problem that the vibrating performance of a spindle is not stable due to mass eccentricity of a tool clamping mechanism in a spindle core high speed rotating process is effectively solved, and the low vibrating performance of the spindle is realized.
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 1/38 - Supports mobiles ou réglables d'outils ou de pièces caractérisés par des particularités de structure concernant la coopération des organes animés d'un mouvement relatifMoyens pour empêcher un déplacement relatif de ces organes utilisant des paliers à fluide ou des supports à coussin de fluide
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
An air bearing spindle and a machine tool. The air bearing spindle comprises: a machine body (1), provided with a spindle hole and an air flow passage; a spindle core (2), provided in the spindle hole in a penetrating manner, the spindle core (2) being provided with thrust flying discs (21); aerostatic bearings, including first aerostatic bearings (41), second aerostatic bearings (42) and thrust bearings (43), the first aerostatic bearings (41) and the second aerostatic bearings (42) being all provided in the spindle hole, the thrust bearings (43) matching the thrust flying discs (21), and the first aerostatic bearings (41), the second aerostatic bearings (42) and the thrust bearings (43) all having air inlet holes (44) in communication with the air flow passage; and aerodynamic bearings (3), provided in the spindle hole and located between the first aerostatic bearings (41) and the second aerostatic bearings (42).
B23Q 1/38 - Supports mobiles ou réglables d'outils ou de pièces caractérisés par des particularités de structure concernant la coopération des organes animés d'un mouvement relatifMoyens pour empêcher un déplacement relatif de ces organes utilisant des paliers à fluide ou des supports à coussin de fluide
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
A spindle structure, comprising: a body (1); a bearing (2), mounted in the body (1); a central spindle (3), inserted into the bearing (2) and capable of rotating with respect to the body (1); a locking member (4), sleeving the periphery of the central spindle (3) and being capable of rotating along with the rotation of the central spindle (3), the rear end of the locking member (4) abutting against an inner ring of the bearing (2); a front cover assembly (5), annularly provided on the periphery of the locking member (4), the front cover assembly (5) being connected to the body (1), and the rear end of the front cover assembly (5) abutting against an outer ring of the bearing (2); and a dustproof cover (6), annularly provided on the periphery of the central spindle (3) and located at the front end of the locking member (4) and the front cover assembly (5), and the dustproof cover (6) being detachably connected to the locking member (4) or the front cover assembly (5). A first air channel (12) is formed in the body (1), and a second air channel (51) communicated with the first air channel (12) is formed in the front cover assembly (5); a maze air channel (7) is defined between the front cover assembly (5) and the locking member (4), and the rear end of the maze air channel (7) is communicated with the front end of the bearing (2); air holes (52) communicated with the second air channel (51) and the maze air channel (7) are formed in the front cover assembly (5). The spindle structure can avoid water accumulation in the front cover portion of the body and can achieve good sealing and dustproof effects; in addition, different dustproof covers are only required to be changed when switching is performed between horizontal and vertical mounting, and the versatility and maintainability of the spindle can be improved.
An adjustable spindle locking apparatus, comprising a positioning sleeve (1), a pressure regulating component, and an actuating piston (2). The positioning sleeve (1) is capable of fixing a spindle (3) and is provided with a pressure regulating through hole. The pressure regulating component and the actuating piston (2) respectively run through either end of the pressure regulating through hole. The pressure regulating component is threadedly connected with the pressure regulating through hole. Also provided is a lathe spindle housing structure, comprising the spindle (3), a machine housing (4), and the adjustable spindle locking apparatus. The positioning sleeve (1) is provided at one side of an end surface of the machine housing (4), and the spindle (3) runs through the positioning sleeve (1) and the machine housing (4) so as to allow the pressure regulating component to spirally run into and out of the pressure regulating through hole, thus allowing the actuating piston to move in the direction facing away from or approaching the end surface of the machine housing (4), facilitating the regulation of the magnitude of the pressure applied to the end surface of the machine housing (4) by the actuating piston, and regulating the stiffness of the connection between the spindle and the machine housing (4).
B23B 19/00 - PoupéesPièces équivalentes de n'importe quelles machines-outils
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
Disclosed is a spindle broaching mechanism, comprising a spindle core (5), a pull rod assembly, and a pull claw assembly (7). The pull rod assembly is located in an inner hole of the spindle core (5), and the lower end of the pull rod assembly is connected to the pull claw assembly (7); the pull rod assembly comprises a pull rod (2) and a spring, wherein the spring is sleeved on the pull rod (2), and the spring is in a transition fit with the spindle core (5), so that an outer circular face of the spring tightly matches an inner circular face of the inner hole of the spindle core (5). The spindle broaching mechanism comprises a spring outer circle guide structure, so as to restrict the spring from expanding outward in a loosening and broaching process, avoid mass misalignment of the spring, and prevent the pull rod assembly from turning in a moving process; an unbalance change amount of the spindle after loosening and broaching can be effectively reduced, vibration of the spindle is reduced, and the stability of spindle operation and vibration resistance are improved.
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23Q 3/155 - Agencements pour insérer ou retirer automatiquement les outils
Disclosed is a spindle broach mechanism, comprising a shaft core (1) and a pull rod assembly, the pull rod assembly being located in the shaft core (1) and used for being connected to a knife handle (8). The pull rod assembly comprises a pull rod (3) and a spring main body, the pull rod (3) is in sleeving connection to the spring main body, and a lower end of the pull rod (3) is used for being connected to the knife handle (8). The spring main body comprises a first spring unit (4) and a second spring unit (6), and the rotation directions of the first spring unit and the second spring unit are opposite. The two spring units having opposite rotation directions generate helical torsion in opposite directions during a compression change process and cancel each other out, which may reduce the rotation change of the broach mechanism during the changing of tools, meet the characteristics of the machining center spindle being fast and having a high tool changing frequency, and improve the comprehensive utilization performance of a machining center spindle.
B23Q 3/12 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être fixés à une broche en général
B23Q 3/155 - Agencements pour insérer ou retirer automatiquement les outils
Disclosed is an electric spindle (2) cooled using a clamp (1). The electric spindle comprises the clamp and an electric spindle, wherein the clamp is of a hollow structure, and part of the body of the electric spindle is fixedly inserted into the clamp; a surface of the clamp is provided with a gas inlet (20) and a gas outlet (30), a gas cooling channel (10) is provided inside the clamp, the gas cooling channel encircles the interior of the clamp, and two ends of the gas cooling channel are respectively in communication with the gas inlet and the gas outlet; and the outer surface of the clamp is further uniformly provided with a plurality of radiating ribs (40).
A dual-worm anti-backlash structure having an extended service life comprises a fixed worm (2), a movable worm (3), an elastic structure (4), and a cylinder structure (10). The movable worm (3) and the fixed worm (2) rotate coaxially, are fixed circumferentially, and can move axially relative to each other. The elastic structure (4) is mounted between the fixed worm (2) and the movable worm (3) so as to generate a force causing the fixed worm (2) and the movable worm (3) to move apart from each other. The cylinder structure (10) comprises a cylinder body (13) and a piston (11) mounted in the cylinder body (13). When the worm rotates clockwise, the fixed worm (2) contacts tooth flanks of a worm gear (1), and gas is introduced into the cylinder body (13), causing the piston (11) to apply a force to the movable worm (3), thereby cancelling out a force applied by the elastic structure (4), such that the movable worm (3) does not contact the worm gear (1). When the worm rotates counterclockwise, gas is not introduced into the cylinder body (13), and the movable worm (3) is driven by the force of the elastic structure (4) to contact the tooth flanks of the worm gear (1) so as to drive the worm gear (1) to rotate. The described design ensures that the worm gear (1) and the worm, whether rotating clockwise or counterclockwise, are not affected by backlash. When the worm rotates clockwise, the movable worm (3) does not contact the tooth flanks of the worm gear (1), thereby reducing wear and extending service life of the worm and the worm gear.
A self-backlash eliminating worm pair structure having double worms, comprising a fixed worm (2), a movable worm (3), and an elastic structure (4). The movable worm (3) and the fixed worm (2) are coaxially rotatable; the movable worm (3) and the fixed worm (2) are circumferentially fixed and relatively movable in the axial direction; the elastic structure (4) is mounted between the fixed worm (2) and the movable worm (3) to provide a force away from each other for the fixed worm (2) and the movable worm (3) such that both the fixed worm (2) and the movable worm (3) can contact the tooth surface of a worm gear (1), so as to eliminate the backlash between the worm gear (1) and the fixed worm (2) as well as between the worm gear (1) and the movable worm (3). Moreover, the elastic structure (4) can compensate for the wear of the worm gear and worms in real time, so that high-precision transmission can be achieved, without manual adjustment of the worm gear and worms periodically.
F16H 55/24 - Dispositifs particuliers de rattrapage de jeu entre les dentures
F16H 57/039 - Boîtes de vitesses pour engrenages à vis sans fin
F16H 57/12 - Dispositions non prévues ailleurs pour ajuster ou pour reprendre le jeu
F16H 1/20 - Transmissions à engrenages pour transmettre un mouvement rotatif sans engrenages à mouvement orbital comportant plus de deux organes engrenés
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Agricultural machines; disintegrators; milking machines;
hair clipping machines for animals; saws [machines];
smoothing presses; printing machines; machines for the
textile industry; mixing machines; bottle washing machines;
tobacco processing machines; sewing machines; bicycle
assembling machines; engraving machines; wrapping machines;
washing machines [laundry]; cord making machines; embossing
machines; glass-working machines; electromechanical machines
for chemical industry; drilling machines; cutters
[machines]; oil refining machines; elevating apparatus;
metalworking machines; steam engine boilers; carburetters;
threading machines; knives [parts of machines]; machine
tools; handling machines, automatic [manipulators];
finishing machines; chucks [parts of machines]; holding
devices for machine tools; tables for machines; grindstones
[parts of machines]; industrial robots; drilling heads
[parts of machines]; ball-bearings; shaft couplings
[machines]; axles for machines; transmissions for machines;
knives, electric; painting machines; stators [parts of
machines]; motors, other than for land vehicles; belts for
machines; machine wheelwork; welding apparatus,
gas-operated; filter presses; curtain drawing devices,
electrically operated; 3d printers; electroplating machines;
transmission shafts, other than for land vehicles; brake
pads, other than for vehicles; reduction gears, other than
for land vehicles; hydraulic engines and motors; milling
machines for treatment of ceramics and metals; alternating
current servo motors; vacuum pumps. Suture materials; electric acupuncture instruments;
protection devices against x-rays, for medical purposes;
microdermabrasion apparatus; apparatus for use in medical
analysis; testing apparatus for medical purposes; diagnostic
apparatus for medical purposes; massage apparatus;
urological apparatus and instruments; radium tubes for
medical purposes; x-ray apparatus for medical purposes;
medical apparatus and instruments; galvanic therapeutic
appliances; lasers for medical purposes; radiological
apparatus for medical purposes; magnetic resonance imaging
[MRI] apparatus for medical purposes; physiotherapy
apparatus; air cushions for medical purposes; babies'
bottles; condoms; surgical implants comprised of artificial
materials; orthopedic articles; magnetic therapy equipment. Surety services; charitable fund raising; trusteeship;
lending against security; insurance underwriting; financing
services; capital investment; art appraisal; real estate
agency services; real estate broker services. Construction information; construction; mining extraction;
upholstering; heating equipment installation and repair;
machinery installation, maintenance and repair; interference
suppression in electrical apparatus; vehicle maintenance;
airplane maintenance and repair; shipbuilding; photographic
apparatus repair; clock and watch repair; repair of security
locks; rustproofing; retreading of tyres; furniture
maintenance; leather care, cleaning and repair;
disinfecting; pump repair. Technological research; research and development of new
products for others; chemistry services; biological
research; weather forecasting; material testing; industrial
design; interior design; dress designing; computer
programming; authenticating works of art; technical
measuring services.
26.
WATERPROOF STRUCTURE FOR REAR END OF HORIZONTAL SPINDLE
The invention discloses a waterproof structure for a rear end of a horizontal spindle, the waterproof structure comprising a spindle core, a bearing locking nut, a rear end cover and a body, wherein the spindle core is arranged inside the body in a penetrating manner; the rear end cover is arranged between the spindle core and the body, and is fixed to the rear end of the body; a first water guide groove is arranged between the rear end cover and the body; the bearing locking nut is arranged between the rear end cover and the spindle core and is fixed to the spindle core; a water throwing groove and a second water guide groove are arranged between the bearing locking nut and the rear end cover; the water guide groove is arranged on an outer side of the water throwing groove and is in communication with the water throwing groove; and the rear end cover is further provided with a first drainage channel, the first drainage channel is respectively in communication with the first water guide groove and the second water guide groove, and the first drainage channel is in communication with the outside. According to the waterproof structure for the rear end of a horizontal spindle of the present invention, by means of the cooperation of the first water guide groove, the second water guide groove and the water throwing groove, the waterproofness of the rear end of the horizontal spindle can be realized so as to ensure the maintained precision of the horizontal spindle.
H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
36 - Services financiers, assurances et affaires immobilières
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
milking machines; hair clipping machines for animals; electric chain saws; smoothing presses; printing machines; mixing machines; bottle washing machines; tobacco processing machines; sewing machines; bicycle assembling machines; engraving machines; wrapping machines; washing machines for clothes; cord making machines; embossing machines; glass-working machines; electromechanical marking machines for chemical industry; drilling machines; Milling cutters for milling machines; oil refining machines; elevating apparatus as work platforms; metalworking machines, namely spindles being parts of machines, linear motors, machine tool holders, reduction gears being parts of machines; steam engine boilers; carburetters; threading machines; knives as grinding machines; metal working machine tools; handling machines, automatic, namely, reduction gears being parts of machines; chucks, parts of machines, namely, turntables for machine tools; Machine tool holders; tables for machines specially adapted to hold powered machinery or unprocessed parts of machines; grindstones as parts of machines; industrial robots; Roller bearings for machines; shaft couplings for machines; axles for machines; transmissions for machines; knives, electric; painting machines; stators being parts of machines; motors, other than for land vehicles; belts for machines; machine wheelwork; welding apparatus, gas-operated; curtain drawing devices, electrically operated; 3d printers; electroplating machines; transmission shafts, other than for land vehicles; brake pads, other than for vehicles; reduction gears, other than for land vehicles; hydraulic engines and motors; milling machines for treatment of ceramics and metals; alternating current servo motors; vacuum pumps Suture materials; electric acupuncture instruments; protection devices against x-rays, for medical purposes, namely protective clothing for medical purposes; microdermabrasion apparatus; apparatus for use in medical analysis, namely, skin moisture analyzers for medical purposes, body composition analyzers for medical purposes, medical diagnostic instruments for the analysis of body fluids; testing apparatus for medical purposes, namely, immunochemical testing apparatus for medical use; diagnostic apparatus for medical purposes, namely, ultrasound diagnostic apparatus, X-ray diagnostic apparatus; massage apparatus; urological apparatus and instruments, namely, urological imaging systems; radium tubes for medical purposes; x-ray apparatus for medical purposes; medical apparatus and instruments, namely, medical apparatus and instruments for use in surgery, medical apparatus and instruments for use in orthopedic surgery; Electrotherapy devices for providing transcutaneous electrical nerve stimulation, infrared heat and compression; lasers for medical purposes; radiological apparatus for medical purposes; magnetic resonance imaging apparatus for medical purposes; physiotherapy apparatus; air cushions for medical purposes; babies' bottles; condoms; surgical implants comprised of artificial materials; medical apparatus and instruments, namely, orthopedic apparatus and instruments for diagnostic and therapeutic use; magnetic therapy equipment, namely, magnet therapy stimulators Surety services; charitable fund raising; Trusteeship representatives; bank lending against security; insurance underwriting for all types of insurance; financing services; capital investment; art appraisal; real estate agency services; real estate broker services Building construction information; building construction; mining extraction; upholstering; heating equipment installation and repair; machinery installation, maintenance and repair; interference suppression in electrical apparatus; vehicle maintenance; airplane maintenance and repair; shipbuilding; photographic apparatus repair; clock and watch repair; repair of security locks; rustproofing; retreading of tyres; furniture maintenance; leather care, cleaning and repair; disinfecting; pump repair Technological research, namely, technology research in the field of medical instruments; research and development of new products for others; chemistry services as consulting; biological research; weather forecasting; material testing; industrial design; interior design; dress designing; computer programming; authenticating works of art
An air cooling structure for a lathe spindle. The structure comprises a main body (10) and an upper bearing (30). The upper bearing (30) is fixed to the main body (10). The main body (10) is provided with an upper air channel (14), an annular upper air distribution channel (15), and a plurality of upper ventilation holes (16). The upper air channel (14) and the upper ventilation holes (16) are in communication with the upper air distribution channel (15). The upper ventilation holes (16) are uniformly distributed on the upper air distribution channel (15). The upper ventilation holes (16) face the upper bearing (30). A blowing device is in communication with the upper air channel (14), so that an air flow is blown to the upper bearing (30) from the upper ventilation holes (16) after traveling in the upper air distribution channel (15). The air flows through the interior of the upper bearing, takes away heat on the upper bearing, and then flows out from a gap at a rear end. Thus, a cooling effect is achieved. Water vapor and dirt in gaps at the front and rear ends are blown away, thereby achieving an air curtain sealing function.
A shockproof air bearing motor spindle (100) comprises a motor body assembly (5), a spindle core assembly (6), and a lower air bearing bearing assembly (7). The spindle core assembly (6) sleeves in the lower air bearing bearing assembly (7). The lower air bearing bearing assembly (7) comprises at least one wear-resistant bearing plate (71) and a bearing seat (73). A surface of the spindle core assembly (6) is provided with a recess (63). A coating (61) is embedded in the recess (63) to prevent the spindle core assembly (6) from wearing. The bearing seat (73) is fixedly connected to the motor body assembly (5). The at least one wear-resistant bearing plate (71) is fixed on the bearing seat (73) and located between the bearing seat (73) and the spindle core assembly (6). In the shockproof air bearing motor spindle of the invention, the surface of the spindle core assembly is provided with a recess, the coating is embedded in the recess to prevent the spindle core assembly from wearing, and the wear-resistant bearing plate is fixed on the bearing seat and located between the bearing seat and the spindle core assembly, significantly reducing the probability of the spindle jamming.
A high-power and high-speed electric spindle. The high-power and high-speed electric spindle comprises: a machine body assembly, comprising a machine body, an upper bearing seat component and a lower bearing seat component; a spindle core, the upper end of the spindle core being pivotally connected to the upper bearing seat component through an upper bearing, and the lower end of the spindle core being pivotally connected to the lower bearing seat component through a lower bearing; a pull claw, mounted on the lower end of the spindle core and used for hooking a cutter; and a pull rod. A lower bearing oil-gas inlet channel and a lower bearing oil-gas outlet channel are provided in the machine body, an inner side end of the lower bearing oil-gas inlet channel is communicated with the gap between an inner ring and an outer ring of the lower bearing, and an inner side end of the lower bearing oil-gas outlet channel is communicated with the gap between the inner ring and the outer ring of the lower bearing. An upper bearing oil-gas inlet channel and an upper bearing oil-gas outlet channel are provided in the machine body assembly, an inner side end of the upper bearing oil-gas inlet channel is communicated with the gap between an inner ring and an outer ring of the upper bearing, and an inner side end of the upper bearing oil-gas outlet channel is communicated with the gap between the inner ring and the outer ring of the upper bearing. In the present invention, inner rings and outer rings of the upper bearing, the lower bearing and the middle bearing of the electric spindle are lubricated by using an oil-gas lubrication medium, so that the lubrication effect is improved and the rotation efficiency of the electric spindle core is improved.
A high-speed direct connection spindle. The high-speed direct connection spindle comprises: a machine body (10); a spindle core (20), the spindle core (20) being pivotally connected in the machine body (10) through an upper bearing (23) and a lower bearing (24) respectively arranged at the upper end and the lower end of the machine body (10), and a conical hole (22) being provided in the bottom end of the spindle core (20), the diameter of the conical hole (22) being gradually increased from bottom to top; a pull rod (30), the lower end of the pull rod (30) being connected to a pull claw (32) that matches the conical hole (22) and is used for fixing a cutter, and the upper end of the pull rod (30) having a cutter hitting disk (31) fixed thereto; a reset spring (21), mounted between the spindle core (20) and the pull rod (30); and an oil cylinder assembly (40), comprising a cylinder body (41) positioned above the top end of the machine body and a piston (42) mounted inside the cylinder body and used for pushing against the cutter hitting disk (31) downwards. The cylinder body (41) is movably provided with a plurality of connecting pieces penetrating therethrough, the part, penetrating through the lower end of the cylinder body (41), of each connecting piece is fixedly connected to the machine body (10), and each connecting piece has an elastic element sleeved thereon. The cylinder body (41) of the oil cylinder is mounted on the machine body (10) in a floating manner, and the axial thrust applied by the oil cylinder to the spindle core (20) when the cutter is assembled or disassembled can be counteracted, so that the bearings are protected from being damaged, and the service life of the bearings is prolonged.
A ball spline pair, comprising a spline sleeve (2) and a spline shaft (1). A retainer sleeve (5) is mounted in each of the front and back ends of the spline sleeve (2). At least two annular tracks are arranged circumferentially on the retainer sleeve (5). Ball bearing positions are formed on the inner wall of the spline sleeve (2). A plurality of rolling bodies (4) is clamped between the annular track and the corresponding ball bearing position. The annular track comprises a load guide path (51), and an opening is formed in the load guide path (51). The spline shaft (1) is inserted into the two retainer sleeves (5) in a way of moving axially, load roll paths (11) extending along the axial direction of the spline sleeve (2) are arranged circumferentially on the outer wall of the spline shaft (1), and the rolling body (4) in each load guide path (51) extends onto the corresponding load roll path (11) through the opening. Compared with the ball spline pair in the prior art, the ball spline pair in the present invention has the advantages that the machining difficulty and manufacturing cost can be greatly reduced, the maximum machining length of the spline sleeve suitable for batch production can be increased, and thus the maximum length-to-diameter ratio of the spline sleeve suitable for batch production is increased.
A ball high-speed electric spindle. The ball high-speed electric spindle comprises: a machine body assembly, comprising a machine body (10), a stator (13) fixed in the machine body, and an upper bearing seat (11) and a lower bearing seat (12) which are fixedly connected to the machine body; and a spindle core assembly, comprising a spindle core (20) and a rotor (21) which is mounted on the outer side of the spindle core and matches the stator. The upper end of the spindle core is pivotally connected to the upper bearing seat through an upper bearing (110), and the lower end of the spindle core is pivotally connected to the lower bearing seat through a lower bearing (120). An upper lubrication oil-gas inlet (154), a lower lubrication oil-gas inlet (155) and a lubrication oil-gas outlet (156) are provided in the machine body assembly. The upper lubrication oil-gas inlet, the gap between an inner ring and an outer ring of the upper bearing and the lubrication oil-gas outlet are communicated successively. The lower lubrication oil-gas inlet, the gap between an inner ring and an outer ring of the lower bearing and the lubrication oil-gas outlet are communicated successively.
An internal grinding spindle, comprising an aluminum water jacket (1), a bearing seat outer sleeve (2), a machine body (3), a machine body lower cover (4), a spindle core (5), a motor (6), a stator core (7), a grinding rod (8) and a bearing (9). The machine body lower cover (4) and the bearing seat outer sleeve (2) are respectively mounted at two ends of the machine body (3). The aluminum water jacket (1) is fixed to an end wall, far from the machine body (3), of the bearing seat outer sleeve (2). The aluminum water jacket (1) is provided with a gas inlet (10), a water inlet (12) and a water outlet (14). The spindle core (5) penetrates the machine body (3) and the bearing seat outer sleeve (2). The motor (6), the stator core (7) and the bearing (9) all sleeve the spindle core (5). The bearing seat outer sleeve (2) is provided with a gas channel (21) and a plurality of cooling channels (22). The machine body (3) is provided with the gas channel (21) and the cooling channels (22). The water inlet (12) and the water outlet (14) are respectively communicated with the cooling channels (22) on the bearing seat outer sleeve (2), and the gas inlet (10) is communicated with the gas channel (21) on the bearing seat outer sleeve (2). The grinding rod (8) is connected to the spindle core (5) in a screwed manner. The internal grinding spindle has reasonable structure and high machining precision.
A high-speed engraving and milling electric spindle. The high-speed engraving and milling electric spindle comprises a machine body (10), a rotating shaft system (20), an aluminum water jacket (30), a broach system (40), an air sealing system (50), a water cooling system (60) and a driving motor. The air sealing system (50) comprises through grooves disposed in the aluminum water jacket (30), a bearing seat outer sleeve (25) and the machine body (10). The water cooling system (60) comprises cooling water holes disposed in an air cylinder (41), the aluminum water jacket (30), the bearing seat outer sleeve (25) and the machine body (10). The high-speed engraving and milling electric spindle is cylindrical, the outer diameters of the machine body (10), the bearing seat outer sleeve (25), the aluminum water jacket (30) and the air cylinder (41) are basically the same, and the ratio of the total length of the machine body (10) to the total length of the bearing seat outer sleeve (25), the aluminum water jacket (30) and the air cylinder (41) is 1:1, so that the electric spindle is more balanced in structural arrangement.
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23Q 5/10 - Entraînement des principaux organes de travail des arbres rotatifs, p. ex. des broches de travail entraînés principalement par des moyens électriques
A mechanical stirring spindle. The mechanical stirring spindle comprises: a machine body (10), a spiral groove (11) being provided on the outer surface of the machine body (10), and an air inlet passage (13) being provided in the machine body (10); a machine body outer sleeve (30), sleeved on the machine body (10), a coolant inlet (31) and a coolant outlet (32) which are communicated with the spiral groove (11) being disposed on the machine body outer sleeve (30); a spindle core (20), pivotally connected to the machine body (10) through an upper bearing (41) and a lower bearing (42) which are respectively located at the upper end and the lower end of the machine body (10); a lower end cover assembly, fixedly connected to the lower end of the machine body (10), sleeved outside the spindle core (20) and provided with an air exhaust passage (62) and an air feed passage (61) which is communicated with the air inlet passage (13); and a mounting seat (80), fixed below the lower end cover assembly. A mounting cavity (81) is disposed inside the mounting seat (80). An oil seal (82) fixed on the mounting seat is disposed in the mounting cavity (81), is sleeved on the spindle core (20) and is provided with lip sheets (822) which closely fit the spindle core (20). Both the air feed passage (61) and the air exhaust passage (62) are communicated with the mounting cavity (81). All parts and components of the mechanical stirring spindle work at low temperature, so that the replacement cycle of the oil seal is prolonged.
A high-speed ball electric spindle (100) comprises a machine body (10) that is arranged with a first accommodating cavity (11), an aluminum water sleeve (30), a bearing seat (20), a rotor shaft core (41), a motor (42), a tool changing system (50) and an air cooling system (60). The machine body and the bearing seat are arranged in an enclosed manner to form a second accommodating cavity (21), and the bearing seat and the aluminum water sleeve are arranged in the enclosed manner to form a third accommodating cavity (31). The rotor shaft core runs through the first accommodating cavity, the second accommodating cavity and the third accommodating cavity. The air cooling system comprises a fan (61) and a cooling air channel (63), wherein the cooling air channel comprises several air inlets (631), several air outlets (633) and a first vent gutter (632). The fan is located in the third accommodating cavity and is driven by the motor to rotate together with the rotor shaft core.
A high-speed air-bearing electric spindle comprises a body (10), a stator (21), an upper air-bearing bearing (30), a lower air-bearing bearing (40), a shaft core (50) and a fixed shaft (70). The body, the upper air-bearing bearing and the lower air-bearing bearing are provided with intercommunicated air channels to form an air film suspending the shaft core. A cooling water channel (71) is provided in the fixed shaft. A cooling gap communicating with the cooling water channel is provided between the outer surface of the fixed shaft and the inner surface of the shaft core. The top part of the cooling gap is closed and the lower part is open.
An air-bearing rotary table comprises an air-bearing shaft (30) and an air-bearing sleeve (50). The air-bearing shaft (30) comprises a shaft (35), a top part (31) and a bottom part (32) provided on the two opposite ends of the shaft. The top part comprises an upper thrust face (310) opposite to the bottom part, and the bottom part comprises a lower thrust face (320) opposite to the top part. The air-bearing sleeve (50) comprises an upper air-bearing face (56) in the top part and a lower air-bearing face (57) in the bottom part. The upper air-bearing face (56) and the upper thrust face (310) are in clearance fit, and the lower air-bearing face (57) and the lower thrust face (320) are in clearance fit, and the inner surface (59) of the air-bearing sleeve and the outer surface of the shaft are in clearance fit. The upper air-bearing face (56), the lower air-bearing face (57) and the inner surface (59) of the air-bearing sleeve are provided with several gas vents (58) connected with external high pressure gas source. The air-bearing sleeve of the air-bearing rotary table is provided with two upper air-bearing faces and two lower air-bearing faces arranged opposite to each other, hence, the axial static stiffness and the rotational stiffness and the axial rotation accuracy of the air-bearing rotary table are enhanced, and the workpiece to be processed and detected locating thereon is always in a stable height, and it will be not changed due to changes of gas pressure.
F16C 32/06 - Paliers non prévus ailleurs comprenant un élément mobile supporté par un coussinet de fluide engendré, au moins en grande partie, autrement que par la rotation de l'arbre, p. ex. paliers hydrostatiques à coussinet d'air
B23Q 1/38 - Supports mobiles ou réglables d'outils ou de pièces caractérisés par des particularités de structure concernant la coopération des organes animés d'un mouvement relatifMoyens pour empêcher un déplacement relatif de ces organes utilisant des paliers à fluide ou des supports à coussin de fluide
41.
BALL BEARING HIGH-SPEED ELECTRIC MAIN SHAFT FOR MILLING
Disclosed is a ball bearing high-speed electric main shaft for milling, comprising an upper bearing seat assembly (5), an upper bearing assembly (6) being fixed via an upper bearing lock nut (17) in a through-hole within the upper bearing seat assembly (5), wherein the front end of a step of the upper bearing seat assembly (5) is fixed to the rear end of a machine body assembly (9), and the front end of a lower bearing assembly (10) is fixed to a lower bearing pressure ring (16) by a lower bearing lock nut (15), and the rear end of a spindle main body of a spindle assembly (7) is fixed to an encoder (18) detecting the rotational speed. The rotational speed of the electric main shaft is adjustable and when operating at a high rotational speed, the main shaft has high accuracy, adequate axial and radial rigidity, and a long service life.
B23B 19/02 - Broches de travailCaractéristiques s'y rapportant, p. ex. agencements des supports
B23C 7/00 - Dispositifs de fraisage susceptibles d'être montés sur une machine-outil, ces dispositifs remplaçant ou non une partie active de la machine-outil
B23Q 11/12 - Dispositions pour le refroidissement ou la lubrification des parties des machines
Disclosed is a high-speed electric air main shaft, comprising an upper air bearing seat assembly (6) and a lower air bearing seat assembly (14), an upper air bearing (7) and a lower air bearing (15) being respectively fixed in the axial through-holes thereof. A spindle (8) passes through an axial through-hole between the upper air bearing (7), a stator and the lower air bearing (15), a clearance of 0.03-0.035 mm existing between the outer wall of the spindle (8) and the inner walls of the upper air bearing (7) and the lower air bearing (15) on the spindle. The high-speed electric main shaft has a simple and compact structure, is convenient to install, uses a variable frequency power supply, has a variable speed of revolution, has a long service life, and is easy to disseminate and apply.
