The present invention relates to a method for machining small rotary cutting tools (10) by a grinding machine, comprising: a) mounting a workpiece (10a) in a spindle (20) of the grinding machine; b) machining a calibration portion (CP) of the workpiece (10a) by performing one or a plurality of marks (M1, M2, M3, M4) on said workpiece with one abrasive wheel or with a corresponding plurality of abrasive wheels (W1, W2, W3, W4) of different shapes, wherein said one mark or each mark (M1, M2, M3, M4) comprises at least one geometrical feature (R1, R2, a1, a2, L) and two position features (D1, D2) corresponding respectively to a geometrical feature (R1w, R2w, a1w, a2w, Lw) and to 3D coordinates (D1w, D2w) of the corresponding abrasive wheel, in a X-Y-Z coordinate system of the grinding machine, that has ground the corresponding mark (M1, M2, M3, M4); c) performing measurements of said at least one geometrical feature (R1, R2, a1, a2, L) and said two position features (D1, D2) of said one mark or each mark (M1, M2, M3, M4) of the calibration portion (CP); d) generating a sequence of instructions based on said at least one geometrical feature and on said two position features of said one mark or each mark as measured under step c) to grind said workpiece (10a) to the final and desired shape of the cutting tool (10), and e) controlling the 3D coordinates of said one or more abrasive wheels (W1, W2, W3, W4) in said X-Y-Z coordinate system during grinding operations on the workpiece or on another workpiece according to said sequence of instructions to obtain said cutting tool (10).
B24B 1/04 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
B24B 3/02 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of milling cutters
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
2.
METHOD FOR LASER-BASED MACHINING OF AN ELONGATE WORKPIECE, AND LASER MACHINING DEVICE FOR CARRYING OUT THE METHOD
The present application relates to a method for the laser-based machining of an elongate workpiece (10) and a laser machining device for carrying out the method. A method and a device are proposed for machining an elongate workpiece (10) with a shaft (2) that extends in the direction of a workpiece longitudinal axis (11), wherein as a result of material removal by means of a laser beam (17) on the workpiece (10), at least one groove with a defined groove surface is created. A laser beam (17) with the beam axis thereof (18) is directed onto the surface of the workpiece (10) and is guided along a laser path (15) that extends only parallel to a groove profile curve. The groove profile curve corresponds to the intersection between the groove surface to be created and a geometric plane (14) that, with the workpiece longitudinal axis (11), forms an angle β with 90° >_ β >_ gradient angle of the groove. The distance d between the groove profile curve and the laser path (15) is specified such that the material of the workpiece (10) located in the geometric plane (14) on the side of the laser path (15) facing away from the groove profile curve is completely sublimed or evaporated as a result of the power density of the laser beam (17) when the laser beam (17) is guided along the laser path (15).
The invention relates to a method for machining a cutting tool (1,21) and to a machining device (50) for carrying out the method. The cutting tool (1, 21) has a cutting tool body (2, 22) and at least one cutting insert (3, 4, 5, 23) which is secured to the cutting tool body (2, 22) and has at least one cutting edge (10, 30). As part of the method, a three-dimensional surface of the cutting tool (1, 21) is specified. Cutting edge delimiting surfaces (11a, 12a, 31a, 32a) are determined therefrom, said cutting edge delimiting surfaces forming the surface of the cutting insert (3, 4, 5, 23) and being arranged adjacently to a cutting edge (10, 30) of the cutting insert (3, 4, 5, 23). The machining device (50) is controlled using said cutting edge delimiting surfaces (11a, 12a, 31a, 32a) and removes material from the cutting insert (3, 4, 5, 23) in a controlled manner, wherein a collision between the cutting tool and a material removing device (56) of the machining device (50) is prevented.
G05B 19/4097 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
G05B 19/401 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
4.
METHOD FOR MEASURING A CUTTING TOOL, AND COORDINATE MEASURING DEVICE FOR CARRYING OUT THE METHOD
The invention relates to a method and a coordinate measuring device for measuring a cutting tool (1,21) that has a cutting tool body (2, 22) and at least one cutting insert (3, 4, 5, 23) which is secured to the cutting tool body (2, 22) and has at least one cutting edge (10, 30). The coordinate measuring device has: a fixing device (51) which receives and fixes the cutting tool (1, 21), a measuring head which scans the surface of the cutting tool (1, 21) arranged in the fixing device (51) in a contacting or contactless manner, wherein the measuring head can be moved relative to the fixing device (51), and a movement device (53) which moves the cutting tool (1, 21) received in the fixing device (51) and the measuring head relative to each other. The measuring head is moved relative to the cutting tool along a movement path in order to determine the coordinates of cutting edge delimiting surfaces (11a, 12a, 31a, 32a) at specified measurement points.
G05B 19/401 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
A method for producing a cutting tool is proposed, wherein the cutting tool has a tool body with a hard coating (2) and the hard coating (2) is applied to the tool body (1) at least in the region of a cutting edge (10, 14, 14a, 43), of a flank (5, 25, 45) and of a rake face (6, 26, 46). First of all, a hard coating (2) is applied to the workpiece on the surface of the tool body (1) of the cutting tool in the region of the cutting edge (3, 23, 43), of the flank (5, 25, 45) adjacent to the cutting edge (3, 23, 43), and of the rake face (6, 26, 46) adjacent to the cutting edge (3, 23, 43). Then, for sharpening the cutting edge, the hard coating on the flank is partially removed by means of laser machining in such a way that, for an angle (δ) between a first geometric plane (16, 36), in which the surface (9) of the tool body (1) situated below the hard coating (2) of the flank (5, 25, 45) extends, and a second geometric plane (18, 38), in which a surface (8, 28) of the hard coating (2) delimited by the sharpened cutting edge (10, 14, 43) extends in the region of the flank (5, 25, 45) after the removal operation, the following holds: 1° ≤ δ ≤ 70.
The invention relates to a method for machining a workpiece on the basis of lasers, wherein a defined workpiece surface (7', 37) is produced on the workpiece (1, 11, 21, 31, 41, 15, 55) by removing material using a laser (52), by means of a laser machining device (50) that has a workpiece fixing device (54), which receives and fixes the workpiece (1, 11, 21, 31, 41, 55), a moving device (51), which moves the workpiece fixing device (54) relative to a device base (56), and the laser (52), the laser beam (3', 13, 23, 33, 43, 53) of which has a geometric axis (5', 15, 25, 35, 45) directed onto the workpiece (1, 11, 21, 31, 41, 55) received in the workpiece fixing device (54). The workpiece (1, 11, 21, 31, 41, 55) and the laser beam (3', 13, 23, 33, 43, 53) of the laser (52) are aligned relative to each other such that at a respective point at which the beam axis (5', 15, 25, 35, 45) intersects the workpiece surface (7', 37) to be produced, the beam axis (5', 15, 25, 35, 45) of the laser beam (3', 13, 23, 33, 43, 53) and a tangent (17, 27, 38, 48) to the workpiece surface (7', 37) to be produced form an angle α ranging from 1° to 10° at said point during the machining process.
The invention relates to a method and a device for machining a workpiece (4, 24, 54) on the basis of lasers, wherein a defined outer workpiece shape (21) with a contour (1) is produced on the workpiece (4, 24, 54) by removing material using a laser beam (2, 22, 52), by means of a laser machining device (50) that has a workpiece fixing device (51), which receives and fixes the workpiece (4, 24, 54), a moving device (53), which moves the workpiece fixing device relative to a device base (55), and a laser (56), which generates a laser beam (2, 22, 52) directed along a beam axis (2a, 22a) and has a laser scanning device (57) that deflects the laser beam (2, 22, 52) in a controlled manner. In the process, a movement of the workpiece (4, 24, 34, 54), a guidance of the laser beam (2, 22, 52), and an advancing movement of the workpiece (4, 24, 54) and/or laser beam (2, 22, 52) are carried out in a synchronized manner.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Machine tools and mechanical tools; industrial robots;
machining centers; tool grinders; grinding machines;
grinding machines for metalworking; grinding tools (parts of
machines); trueing machines. Downloadable or recorded media, software, blank digital or
analog recording and storage media; touch-sensitive display
and control screens; measuring and testing machines and
instruments; computer software; industrial process control
software; software for operational process management and
automation. Installation, maintenance and repair of machines;
maintenance and repair of machines, machine tools and
automatic systems for treating and processing metals; rental
of industrial machinery.
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Machine tools for use on metalworking machines and industrial robots; mechanical tools, namely, drilling machines, milling machines, turning tools in the nature of power operated metalworking machine tools, boring machines; industrial robots; metalworking machines, namely, machining centers; tool grinders, namely, tool grinding machines; grinding machines for metalworking; grinding tools being parts of machines; metalworking machines in the nature of trueing machines blank digital storage media; touch-sensitive display and control computer screens; downloadable and recorded computer software for the control of metalworking machine tools and industrial robots; downloadable and recorded industrial process control software; downloadable and recorded software for operational process management and automation Installation, maintenance and repair of machines; maintenance and repair of machines, machine tools and automatic systems for treating and processing metals
09 - Scientific and electric apparatus and instruments
Goods & Services
Machines, machine tools and mechanical tools; industrial
robots; machining centers; tool grinders; grinding machines;
grinding machines for metalworking; grinding tools (parts of
machines); trueing machines. Downloadable or recorded media, software, blank digital or
analog recording and storage media; touch-sensitive display
and control screens; measuring and testing machines and
instruments; computer software; industrial process control
software; software for use in automating and managing
business processes.
09 - Scientific and electric apparatus and instruments
Goods & Services
Machines, namely, metalworking machines; machine tools for use on metalworking machines and industrial robots; mechanical tools, namely, drilling machines, milling machines, turning tools in the nature of power operated metal working machine tools, boring machines; industrial robots; metalworking machines, namely, machining centers; tool grinders, namely, tool grinding machines; grinding machines for metalworking; grinding tools being parts of machines; metalworking machines in the nature of trueing machines blank digital storage media; touch-sensitive display and control computer screens; downloadable and recorded computer software for the control of metalworking machine tools and industrial robots; downloadable and recorded industrial process control software; downloadable and recorded software for operational process management and automation
12.
Device for aligning and positioning a workpiece relative to a laser beam of a laser processing machine
An apparatus for orienting and positioning a workpiece (4) relative to a laser beam (3) of a laser processing machine is proposed. The apparatus is equipped with an apparatus base (5), with a workpiece locating device (6) which receives the workpiece (4) to be machined and with a movement device (7) exhibiting at least three axes which moves the workpiece locating device (6) relative to the apparatus base (5). The movement device (7) is equipped with a rigid body (12) and with a first rotary drive which generates a torque around an axis of rotation B and drives the rigid body (12) to rotate around the axis of rotation B relative to the machine base (5). On the rigid body (12) is arranged a first linear drive which displaces a first carriage (13) on the rigid body (12) along the axis Xw. On the first carriage (13) is arranged a second rotary drive (14) which generates a torque around an axis of rotation C which is different from the axis of rotation B and which drives the workpiece locating device (6) to rotate around the axis of rotation C.
B23K 26/08 - Devices involving relative movement between laser beam and workpiece
B23K 26/38 - Removing material by boring or cutting
B23K 37/053 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical workClamping devices therefor
B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
13.
Method and grinding machine for fabricating a workpiece comprising a helical groove
The invention concerns a method and a grinding machine (4) for machining a workpiece (1) comprising a desired helical groove. The method comprises a step of grinding a calibration groove (12) on the surface (10) of the workpiece according to a predetermined helix pattern of the desired helical groove and by means of an abrasive wheel (2) of the grinding machine. The calibration groove (12) has a calibration length that is equal or smaller than the predetermined length of the desired helical groove and has a calibration depth (120) that is smaller than the predetermined depth of the desired helical groove. The method comprises steps of: determine an abrasive wheel dimension (22, 23, 24, 25) of the abrasive wheel (2) by measuring the calibration depth; and using the determined wheel dimension (22, 23, 24, 25) for grinding the desired helical groove by means of the abrasive wheel (2).
B24B 19/04 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
B24B 49/05 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation including the measurement of a first workpiece already machined and of another workpiece being machined and to be matched with the first one
A tool magazine receives a plurality of tools which are provided for arrangement on a tool spindle of a machine tool, and a method for changing tools using a tool magazine. The tool magazine exhibits a guide rail arranged in a fixed position on a machine base, a magazine carriage displaceably mounted on the guide rail, a rotary drive arranged on the magazine carriage and having a magazine shaft which can be rotated around a shaft axis of rotation, at least two magazine wheels arranged non-rotatably on the magazine shaft and having a plurality of tool holders, and a transfer device linearly displaceable along a transfer axis transverse to the guide rail and which picks up a tool arranged on one of the tool holders of the magazine wheels and transports the tool to the tool spindle and back.
The invention concerns a method and a grinding machine (4) for machining a workpiece (1) comprising a desired helical groove. The method comprises a step of grinding a calibration groove (12) on the surface (10) of the workpiece according to a predetermined helix pattern of the desired helical groove and by means of an abrasive wheel (2) of the grinding machine. The calibration groove (12) has a calibration length that is equal or smaller than the predetermined length of the desired helical groove and has a calibration depth (120) that is smaller than the predetermined depth of the desired helical groove. The method comprises steps of: determine an abrasive wheel dimension (22, 23, 24, 25) of the abrasive wheel (2) by measuring the calibration depth; and using the determined wheel dimension (22, 23, 24, 25) for grinding the desired helical groove by means of the abrasive wheel (2).
B24B 19/04 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
B24B 49/05 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation including the measurement of a first workpiece already machined and of another workpiece being machined and to be matched with the first one
A tool magazine for holding a plurality of tools, which are provided to be arranged on a tool spindle of a machine tool, and a method for changing tools with a tool magazine are proposed. The tool magazine has a guide rail (5) arranged in a fixed position on a machine base (6), a magazine carriage (7) mounted in a displaceable manner on the guide rail (5), a rotary drive (8), arranged on the magazine carriage, with a magazine shaft (9) that is rotatable about a shaft axis of rotation (13), at least two magazine wheels (10, 11, 12), arranged on the magazine shaft (9) for conjoint rotation, with a plurality of tool holders (14), and a transfer device (18) that is linearly displaceable transversely to the guide rail (5) along a transfer axis (19), said transfer device (18) receiving a tool (15) arranged on one of the tool holders (14) of the magazine wheels (10, 11, 12) and transporting same to the tool spindle (3), and vice versa.
The invention relates to a device for aligning and positioning a workpiece (4) relative to a laser beam (3) of a laser processing machine. The device is equipped with a device base (5), a workpiece fixing device (6) which receives the workpiece (4) to be machined, and a moving device (7) which has at least three axes and which moves the workpiece fixing device (6) relative to the device base (5). The moving device (7) is equipped with a rigid body (12) and a first rotational drive which generates a torque about a rotational axis B and rotates the rigid body (12) about the rotational axis B relative to the machine base (5). The rigid body (12) is equipped with a first linear drive which moves a first slide (13) on the rigid body (12) along the axis Xw. The first slide (13) is equipped with a second rotational drive (14) which generates a torque about a rotational axis C that differs from the rotational axis B and rotates the workpiece fixing device (6) about the rotational axis C.
B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
B23K 26/08 - Devices involving relative movement between laser beam and workpiece
The invention concerns a method for machining a workpiece (1) by a grinding machine, comprising the step of rotating and translating the workpiece along a first axis (4) toward the first abrasive wheel; rotating an abrasive wheel (6) around a second axis (61) and translating it along a third axis (62) such that the abrasive wheel grinds a peripheral portion (103) of the workpiece; the abrasive wheel being positioned in a position in translation along the third axis; and wherein the position in translation is determined as a function of a position and of an angular position of the workpiece around the first axis. The invention further related to a grinding machine for carrying out such method.
B24B 5/16 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding peculiarly profiled surfaces, e.g. bulged
B24B 5/26 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
19.
Grinding machine and method for machining a workpiece
The invention concerns a method for machining a workpiece (1) by a grinding machine, comprising the step of rotating and translating the workpiece along a first axis (4) toward the first abrasive wheel;rotating an abrasive wheel (6) around a second axis (61) and translating it along a third axis (62) such that the abrasive wheel grinds a peripheral portion (103) of the workpiece;the abrasive wheel being positioned in a position in translation along the third axis; and wherein the position in translation is determined as a function of a position and of an angular position of the workpiece around the first axis. The invention further related to a grinding machine for carrying out such method.
B24B 5/16 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centres or chucks for holding work for grinding peculiarly profiled surfaces, e.g. bulged
B24B 5/26 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
A device for centering a longitudinal workpiece fixed on a spindle includes a support body linearly displaced along a support body axis. The support body and support body axis are aligned substantially parallel to an axis of rotation of the spindle. A first support element movably arranged on the body supports the workpiece or a workpiece receiving part, and a second support element movably arranged on the body supports the workpiece or a workpiece receiving part. The first support element can be linearly displaced in a first direction and is rotatably arranged about a first axis of rotation on the support body and the second support element can be linearly displaced in a second direction different from the first direction and is rotatably arranged about a second axis of rotation on the support body.
Disclosed is a device for workpiece centring for a longitudinal workpiece (2) that is fixed on a spindle (1), comprising a support body (11, 47, 72, 103), which can be linearly displaced along a support body axis (7), wherein the support body (11, 47, 72, 103) and the support body axis (7) can be aligned substantially parallel to an axis of rotation (8) of the spindle (1), a first support element (9, 45, 71, 91, 11), which is displaceably arranged on the body and which supports, from a first side, the workpiece (2) or a workpiece receiving part (60) that receives the workpiece (2), and a second support element (10, 46, 72, 92, 112), which is displaceably arranged on the body and which supports, from a second side, the workpiece (2) or a workpiece receiving part (60) that receives the workpiece (2), wherein the first support element (9, 45, 71, 91, 11) can be linearly displaced in a first displacement direction (23, 48) and is rotatably arranged about a first axis of rotation (23a, 48a) on the support body (11, 47, 72, 103), and wherein the second support element (10, 46, 72, 92, 112) can be linearly displaced in a second displacement direction (24, 49), which is different from the first displacement direction (23, 48), and is rotatably arranged about a second axis of rotation (24a, 49a) on the support body (11, 47, 72, 103).
According to the invention, as the grinding wheel (16) used for dressing the diamond wheel (7) is made of a softer material, it is necessary to periodically control the value of its radius. In order to do so, the position detector (21) made of a diamond member is brought into contact with the wheel (7), the contact position being determined by the sensor (22). Successive dressing strokes are carried out using the grinding wheel (16) while determining a stroke depth and moving the grinding wheel in the W direction. The target result is obtained when the contact point between the wheel to be dressed and the grinding wheel coincide with a set point.
B24B 49/18 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools
B24B 53/053 - Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool
23.
PRECISION GUIDING DEVICE IN A MACHINE FOR MACHINING CYLINDRICAL PARTS
The part to be machined (2) is attached so that its axis lies in a position exactly determined relative to the base of the machine (1) and to the pedestal (3) due to the flanges (8) and the rear face (9) of the V formed on the pedestal, and due to an intermediate member (11) having the shape of a crown sector in which the concave cylindrical faces (23) are adapted to the part (2). The part is pressed against the faces (23) by a lug (14) actuated by the calliper (15). The part (2) can be rotated by a floating pin actuated by a servomotor in a determined position relative to the base of the machine (1).
According to the invention, the pin (6) is rotated by the motor (5) via the belt (10) and the pulley (11) that is precision-held on the fixed bushing (13). It comprises a pin arm (16) whose solid rear portion (20) rotates in the bushing (13) and is coupled by screws (18), and the centring part (19) at the inner area of the pseudo universal-joint disk (17) whose outer area is coupled to the pulley (11). A second pseudo universal-joint connection is provided between the rear portion (20) of the pin arm (16) and the front portion thereof (21), which is connected to the clamp-holding bushing (7) in which the clamping collet (8) is mounted.
The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contact is detected by an electronic appliance (17) whereof the electronic module (19) controls the stoppage of the grindstone, its return to the starting position and the recording of the position of the grindstone at the time of contact. In the second step the grindstone (15) is controlled to follow the left line obtained by connecting the points registered during the first step.
B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
B24B 3/26 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of drills of the point of twist drills
The invention concerns a spring collet whereof the body (1) is divided into a fixed part (6) forming a rigid support and a mobile part (7) forming a flexible element linked to the rigid support by the flexible wall (8). Each part comprises one of the jaws (18, 19). The conical spring washer (2) inserted between the fixed and mobile parts (6, 7) is maintained in place by the flat head screw (3) The stop screw (4) is locked by the lock nut (5). To engage or release the part to be machined, an outer member presses against the surface portion (30) of the table (14) so as to compress the spring washer (2) thereby causing the element (7) to pivot on the wall (8) and spacing apart the jaws (18, 19) from each other.
The invention concerns a device whereof the first component (1) comprises two control levers (8, 9) driving in translation the rigid element (20) whereon is fixed the frame of the second component (2). The control lever (10) of the second component causes the mobile element (29) to which the frame (6) of the third component (3) is fixed to pivot. The control lever (11) of the latter actuates the mobile element (32, 51) pivoting about a vertical axis and supporting the block (57) whereto is fixed the open guiding V (12) designed to support accurately the free portions of the thin cylindrical parts to be machined.
B23Q 1/34 - Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements
B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
B23Q 1/62 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only two sliding pairs only with perpendicular axes, e.g. cross-slides
B23Q 3/18 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for positioning only
B24B 41/06 - Work supports, e.g. adjustable steadies
The invention concerns a transfer machine whereof one of the stations comprises the fixed base (8) bearing the horizontal slide (9) oriented parallel to the tool-holder clamp. The composite support mounted on the slide (9) comprises the table (10), the rotary segment (16) rotating about the axis (19), the prismatic support (30) with the vertical slide (31), and the plate (32) bearing the support base (33) of a grinding head spindle equipped with two coaxial grinding wheels. One of said grinding wheels performs the operation of rear clearance when the position of the segment (16) is such that the axis of the spindle is parallel to the displacement direction of the slide (9), while the other grinding wheel performs the operation of relief grinding when the axis of the spindle is inclined by an angle corresponding approximately to the inclination of the turns of the drill being machined, after the segment (16) has rotated under the effect of the drive system (15) acting via its click-stopped gear motor on the belt (24) pressed against the edge (18) of the segment (16).
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
Goods & Services
Machine tools and parts therefor; machines and parts of machines for grinding, trimming, sharpening, and resharpening, in particular cutting tools; all the aforesaid goods with the exception of devices and tools for sawing and felling timber. Computer software, in particular software for designing cutting tools. Installation, maintenance and repair of machine tools and parts therefor.
