An apparatus for reducing the cross-section of a tubular hollow body with a hollow body wall has a shaping die on the outer side of the hollow body, a mandrel in the interior of the hollow body, and a shaping drive with a mandrel drive and a die drive. The shaping die is movable by the die drive to reduce a cross-section of the hollow body with an axial movement of the die. The mandrel is movable via the mandrel drive along the hollow body axis through the die opening in the shaping die. The hollow body wall is subjected to a tensile stress by the mandrel and is drawn in the direction of the axial movement of the mandrel through the die opening. The mandrel drive and the die drive are controlled so that the axial mandrel movement and the axial die movement die are superimposed on one another.
B21C 31/00 - Control devices for metal extruding, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
2.
FORMING TOOL, FORMING TOOL ASSEMBLY, FORMING MACHINE, FORMING METHOD AND COMPUTER PROGRAM FOR PRODUCING A CYLINDRICAL WORKPIECE HAVING A HELICAL OUTER CONTOUR BY MEANS OF SWAGING
The invention relates to a forming tool (46) for a forming tool assembly (12) for producing a cylindrical workpiece having a helical outer contour in multiple stages by means of swaging, the forming tool comprising a force-application side (62), a forming side (64) located opposite the force-application side (62), and a cam structure (70) formed on the forming side (64). The cam structure (70) has a first forming cam (72; 72a, 72b) and a second forming cam (72; 72a, 72b) which are located one behind the other in a longitudinal direction (74) of the forming tool (46) perpendicular to the forming direction (58), wherein the forming cams (72; 72a, 72b) have various cam heights (116) and the forming cams (72; 72a, 72b) have a cam extension direction (94) in an orthogonal view of the forming side (64), which cam extension direction is oblique in relation to the longitudinal direction (74) of the forming tool (46). The invention also relates to a forming tool assembly (12), to a forming machine (10), to a forming method, and to a computer program.
In the context of a forming method for producing a helical toothing of a cylindrical workpiece by extrusion, a relative movement of a forming tool and of a workpiece blank carried out in a peripheral direction of the forming tool and of the workpiece blank is superimposed on an axial forming movement of the forming tool and of the workpiece blank. Due to a forming relative movement of the forming tool and of the workpiece blank resulting from the mutual superimposition of the axial forming movement and the forming movement in the peripheral direction, the helical toothing of the workpiece is produced on the workpiece blank, in that the forming tool engages, with a shaping helical toothing, in the workpiece blank during the resulting forming relative movement. A forming machine is designed to carry out the aforementioned method.
B21K 1/30 - Making machine elements discs with gear-teeth
B21C 23/03 - Making uncoated products by both direct and backward extrusion
B21C 31/00 - Control devices for metal extruding, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
A forming jaw (3) of a rotary swaging tool for shaping a plastically deformable, preferably metallic, workpiece has a jaw main body (13) and a forming body (14) which is a separate component from the jaw main body (13) and is mounted on the jaw main body (13), preferably connected to the jaw main body (13). On a side facing the workpiece, the forming body (14) is bounded by a shaping surface (15) designed for shaping a workpiece. A rotary swaging tool has at least one forming jaw (3) of the above-mentioned type.
A device (5) for shaping a tubular hollow element (1) comprises a shaping matrix (9) for arranging on the outer side of the hollow element (1), a mandrel (10) for arranging inside the hollow element (1) and a shaping device (20) with a matrix drive (19). Matrix profile protrusions (13) of a matrix profile (12) of the shaping matrix (9) arranged on the axially parallel outer side of a hollow element wall (2), and mandrel profile intermediate spacings (17) of a mandrel profile (15) arranged on the axially parallel inner side of the hollow element wall (2), and matrix profile intermediate spacings (14) of the matrix profile (12) arranged on the axially parallel outer side of the hollow element wall (2), and mandrel profile protrusions (16) of the mandrel profile (15) arranged on the axially parallel inner side of the hollow element wall (2) lie opposite one another on the hollow element wall (2) in the radial direction of a hollow element axis (3). A method for shaping a tubular hollow body (1) is carried out by means of the above-mentioned device (5). Using a matrix drive (19), the shaping matrix (9) is moved with an axial matrix movement along the hollow element axis (3) relative to the hollow element (1) and also along the mandrel (10) arranged inside the hollow element (1). As a result of the matrix movement and a related exceeding of the yield point of the material of the hollow element wall (2), Material of the hollow element wall (2) flows into the mandrel profile intermediate spacings (17) of the mandrel (10), forming an internal profile (18) of the hollow element wall (2).
B21C 1/24 - Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
B21C 3/04 - Dies; Selection of material therefor; Cleaning thereof with non-adjustable section
B21C 37/20 - Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies
6.
APPARATUS AND METHOD FOR REDUCING THE CROSS SECTION OF A TUBULAR HOLLOW BODY BY SHAPING THE HOLLOW BODY
An apparatus (1) for reducing the cross section of a tubular hollow body (2) with a hollow body wall (3) made from a plastically deformable material and with a hollow body axis (4) running in the longitudinal direction of the hollow body (2) has a shaping die (5) for arranging on the outer side of the hollow body (2), a mandrel (6) for arranging in the interior of the hollow body (2), and a shaping drive (8) with a mandrel drive (9) and a die drive (10). The shaping die (5) is provided with a die opening (7), the opening cross section of which is smaller than the cross section of the hollow body (2) in an initial state. The shaping die (5), which is arranged on the outer side of the hollow body (2), is movable relative to the hollow body (2), with the cross section of the hollow body (2) being reduced, by means of the die drive (10) with an axial movement of the die along the hollow body axis (4) in a direction (14) of the axial movement of the die. By means of the mandrel drive (9), the mandrel (6), which is arranged in the interior of the hollow body (2), is movable along the hollow body axis (4) with an axial movement of the mandrel, which is directed counter to the axial movement of the die, through the die opening (7) in the shaping die (5). In the process, the hollow body wall (3) is subjected to a tensile stress by means of the mandrel (6) in a direction (13) of the axial movement of the mandrel and is drawn relative to the shaping die (5), which is arranged on the outer side of the hollow body (2), in the direction (13) of the axial movement of the mandrel through the die opening (7). A drive controller (11) of the shaping drive (8) can be used to control the mandrel drive (9) and the die drive (10) in such a manner that the axial movement of the mandrel and the axial movement of the die are combined with each other. A method for reducing the cross section of a tubular hollow body (2) is carried out by means of the above-mentioned apparatus (1).
B21C 1/24 - Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
A processing unit for processing a workpiece wall of a workpiece with a forward stroke carried out by the processing unit in a forward stroke direction of the processing unit towards the workpiece, and with a backward stroke carried out by the processing unit in a backward stroke direction of the processing unit away from the workpiece, wherein the workpiece and the processing unit move relative to each other along a working axis of the processing unit. A processing machine for processing a workpiece wall of a workpiece contains the processing unit.
B21J 5/12 - Forming profiles on internal or external surfaces
8.
Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body
In a method for thickening a plastically deformable hollow body wall of a hollow body, with effective radial support of the unthickened hollow body wall on an outer supporting face of an outer mold and with effective radial support of the hollow body wall on an inner supporting face of an inner supporting body, the hollow body is acted on by a compressive force by two application members at application points by moving the application members towards one another in the axial direction with a compressing movement. The application points on the hollow body are distanced from one another in the axial direction. An expansion space of the outer mold is arranged between the application points. Due to the compressing movement of the application members, material of the hollow body wall between the application points is plasticised in the region of the expansion space of the outer mold, and plasticised material of the hollow body wall flows into the expansion space of the outer mold, thus thickening the hollow body wall.
A processing unit (1) for processing a workpiece (7) on a workpiece wall has a processing tool (3), a tool abutment (4) and also a clamping device (5). In the processing of the workpiece, the processing unit (1) performs along a working axis (8) a forward stroke in a forward-stroke direction (9) and a return stroke in a return-stroke direction (10) with respect to a workpiece (7) to be processed. The processing tool (3) is supported In the forward stroke on an abutment-side forward-stroke supporting surface (11) of the tool abutment (4) and in the return stroke on an abutment-side return-stroke supporting surface (13) of the tool abutment (4) along the working axis (8). The abutment-side return-stroke supporting surface (13) is kept at a distance from the abutment-side forward-stroke supporting surface (11) in the return-stroke direction (10) and is facing away from the abutment-side forward-stroke supporting surface (11). The clamping device (5) comprises a tensioning element (14), which is structurally separate from the tool abutment (4) and, along the working axis (8), on one side is connected to the processing tool (3) and on the other side has an adjusting thread (19), with which an adjusting element (15) of the clamping device (5) is in threaded engagement. The tensioning element (14) of the clamping device (5) can be pretensioned along the working axis. With the tensioning element (14) pretensioned, the processing tool (3) is clamped against the abutment-side forward-stroke supporting surface (11) and against the abutment-side return-stroke supporting surface (13) by means of the tensioning element (14) and by means of the adjusting element (15) acting on the abutment-side return-stroke supporting surface (13) along the working axis (8) in the direction of the processing tool (3). A processing machine has a processing unit (1) of the aforementioned type. A processing unit (1) of the aforementioned type is produced by the tensioning element (14) of the processing unit (1) being pretensioned by means of a tensioning apparatus.
A processing unit (1) for processing a workpiece (7) on a workpiece wall has a processing tool (3), a tool abutment (4) and also a clamping device (5). In the processing of the workpiece, the processing unit (1) performs along a working axis (8) a forward stroke in a forward-stroke direction (9) and a return stroke in a return-stroke direction (10) with respect to a workpiece (7) to be processed. The processing tool (3) is supported In the forward stroke on an abutment-side forward-stroke supporting surface (11) of the tool abutment (4) and in the return stroke on an abutment-side return-stroke supporting surface (13) of the tool abutment (4) along the working axis (8). The abutment-side return-stroke supporting surface (13) is kept at a distance from the abutment-side forward-stroke supporting surface (11) in the return-stroke direction (10) and is facing away from the abutment-side forward-stroke supporting surface (11). The clamping device (5) comprises a tensioning element (14), which is structurally separate from the tool abutment (4) and, along the working axis (8), on one side is connected to the processing tool (3) and on the other side has an adjusting thread (19), with which an adjusting element (15) of the clamping device (5) is in threaded engagement. The tensioning element (14) of the clamping device (5) can be pretensioned along the working axis. With the tensioning element (14) pretensioned, the processing tool (3) is clamped against the abutment-side forward-stroke supporting surface (11) and against the abutment-side return-stroke supporting surface (13) by means of the tensioning element (14) and by means of the adjusting element (15) acting on the abutment-side return-stroke supporting surface (13) along the working axis (8) in the direction of the processing tool (3). A processing machine has a processing unit (1) of the aforementioned type. A processing unit (1) of the aforementioned type is produced by the tensioning element (14) of the processing unit (1) being pretensioned by means of a tensioning apparatus.
A clamping device (1) for fixing a workpiece comprises two clamping elements (4, 5), of which, one clamping element (4, 5) can be adjusted by changing a current pivot position of the clamping element (4, 5) and by changing a current relative pivot position of the two clamping elements (4, 5) relative to the other clamping element (4, 5) with a pivot movement about a pivot axis (8, 9). A detection device (19) of the clamping device (1) comprises a rotary encoder (17), by means of which the cur rent pivot position of the clamping element (4, 5) can be continuously detected by the ability of the rotary encoder ( 17) to continuously detect a current extent of the pivot movement of the clamping element (4, 5). Connected to the detection device (19) is an evaluation device (18) by means of which the current relative pivot position of the two clamping elements (4, 5) allocated to the current extent of the pivot movement of the clamping element (4, 5) can be continuously determined based on the continuously detected current extent of the pivot movement of the clamping element (4, 5).
In a method for monitoring a functional state of a shaping tooth arrangement on a forming tool, at measurement times which are temporally staggered with respect to each other at a plurality of measurement locations on the shaping tooth arrangement, a tooth arrangement force is measured which acts on the shaping tooth arrangement. At each of the measurement times for each of the measurement locations an instantaneous local tooth arrangement force is thereby determined. A previous instantaneous local tooth arrangement force and a subsequent instantaneous local tooth arrangement force are correlated with each other to determine a local state identification value. On the basis of the local state identification values associated with the measurement locations, information is obtained relating to the functional state of the shaping tooth arrangement.
B21C 31/00 - Control devices for metal extruding, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
B21C 23/18 - Making uncoated products by impact extrusion
B21J 9/20 - Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
B21K 1/06 - Making machine elements axles or shafts
B21C 23/21 - Presses specially adapted for extruding metal
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
B21J 5/12 - Forming profiles on internal or external surfaces
B21K 1/30 - Making machine elements discs with gear-teeth
13.
METHOD AND DEVICE FOR MONITORING THE FUNCTIONAL STATE OF A SHAPING TOOTH ARRANGEMENT ON A FORMING TOOL
A device, forming machine and method for monitoring the functional state of a shaping tooth arrangement on a forming tool, are provided. A tooth arrangement force, which acts on the shaping tooth arrangement as a result of a stroke which the arrangement and a workpiece in contact with the arrangement carry out relative to each other, is measured at temporally staggered measurement times at a plurality of measurement locations on the arrangement, thereby determining instantaneous local tooth arrangement forces. Previous and subsequent instantaneous local tooth arrangement forces are correlated with each other and, on the basis of the correlation for each of the measurement locations, a local state identification value associated with the measurement location and specific to the functional state of the shaping tooth arrangement, is determined. Based on these values, information on the functional state of the shaping tooth arrangement is obtained.
B23Q 17/00 - Arrangements for indicating or measuring on machine tools
14.
METHOD AND DEVICE FOR THICKENING A PLASTICALLY DEFORMABLE HOLLOW BODY WALL OF A HOLLOW BODY, IN PARTICULAR IN PORTIONS, AND MANUFACTURING METHOD AND MACHINE FOR PRODUCING A HOLLOW BODY
A method and device for thickening a plastically deformable hollow body wall of a hollow body, and a manufacturing method and machine for producing a hollow body, are provided. In the method for thickening the hollow body wall, the hollow body is acted on by a compressive force by two application members at application points distanced from one another in an axial direction, being moved towards one another in the axial direction. Effective radial support of both the unthickened hollow body wall on an outer supporting face of an outer mould, and of the hollow body wall on an inner supporting face of an inner supporting body, are provided. Material of the hollow body wall between the application points is plasticised in the region of an expansion space between the application points of the outer mould, and this plasticised material flows into the expansion space, thickening the hollow body wall.
Method and device for thickening a plastically deformable hollow body wall of a hollow body, in particular in portions, and manufacturing method and machine for producing a hollow body
A method for thickening a plastically deformable hollow body wall of a hollow body includes the steps of arranging the hollow body in an outer mold, arranging an inner supporting body inside the hollow body, applying a compressive force to the hollow body wall by means of two application members moving towards one another in an axial direction with a continuous compressing movement, and performing an axial relative movement of the application members performing the continuous compressing movement on the one hand and of the outer mold on the other hand. Due to the compressing movement of the application members, material of the hollow body wall is plasticized and flows into an expansion space of the outer mold, an axial extent of the expansion space increasing due to the axial relative movement of the application members performing the continuous compressing movement and of the outer mold.
A motor shaft of an electric motor is produced by producing and interconnecting a first module and an additional module of the motor shaft. The first module of the motor shaft and/or the additional module of the motor shaft is or are provided with a module-end connection element by cold forming and/or by warm forming and/or by hot forming a base module. The first module of the motor shaft produced in this way and the additional module of the motor shaft produced in this way are then interconnected by joining the module-end connection elements on both ends. A motor shaft produced according to this method is formed of a correspondingly configured first module and a correspondingly configured additional module.
F16H 3/089 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with rods
B21K 1/06 - Making machine elements axles or shafts
F16C 3/035 - Shafts; Axles telescopic with built-in bearings
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machine tools, forming machines, machine tools, mechanically operated tools for machine tools, forming machines; Parts for the aforesaid goods, included in class 7. Wholesaling and retailing in the fields of machines tools, forming machines, machine tools and mechanically operated tools. Installation, maintenance and repair of machine tools, forming machines, machine tools and mechanically operated tools. Treatment of materials, metalworking; Assembling and manufacturing of goods for others; Custom manufacture of shaped components, sample components, prototype components and pre-series components. Engineering services; Design and development of machine tools, forming machines, machine tools and mechanically operated tools, including parts therefor; Scientific and technological services and research in the field of machine tools, forming machines, machine tools and mechanically operated tools; Technological consultancy in the field of manufacture; Design and development of manufacturing methods; Research and development for others; Construction drafting.
