Drive device for a machining tool of a mechanical pressing device and machining unit and mechanical pressing device with such a drive device

Abstract

Drive device for actuating a processing tool (5, 38) of a mechanical pressing device (1) for material processing, with a drive unit (11) and with a press ram (6), • wherein the drive unit (11) comprises a drive motor (12) and a mechanical gear (13) arranged between the drive motor (12) and the press ram (6) and • wherein the press ram (6) for actuating the machining tool (5, 38) can be driven by means of the drive unit (11) with a working stroke, characterized in that • that the transmission (13) of the drive unit (11) has, as transmission wheels, a central gear (14) with a central gear axis (15), an outer ring gear (16) with a ring gear axis (17) coinciding with the central gear axis (15), and at least one intermediate gear (18) arranged in the radial direction between the central gear (14) and the ring gear (16) with an intermediate gear axis (19) which runs parallel to the central gear axis (15) and the ring gear axis (17), - wherein the central gear (14) is in contact with an outer peripheral surface (25) of the intermediate gear (18) on an outer peripheral surface (26) of the central gear (14), and the intermediate gear (18) is in contact with an inner peripheral surface (27) of the ring gear (16) on the outer peripheral surface (25) of the intermediate gear (18), which inner peripheral surface is provided on a ring gear wall (28) and runs coaxially with the ring gear axis (17), - wherein the central wheel (14) is mounted on a supporting structure (22) of the drive device in a stationary manner and is rotatable about the central wheel axis (15), - wherein the intermediate wheel (18) is mounted on an intermediate wheel carrier (23) in a stationary manner and rotatably about the intermediate wheel axis (19), and the intermediate wheel carrier (23) is rotatably movable together with the intermediate wheel (18) about a carrier axis (24) running parallel to the intermediate wheel axis (19), and - wherein the ring gear (16) is arranged stationary on the support structure (22) of the drive device and is rotationally fixed about the ring gear axis (17), • that a circular movement of the intermediate gear (18), which is carried out by the intermediate gear (18) relative to the central gear (14) and relative to the ring gear (16) and thereby with the intermediate gear axis (19) along an orbit (30) concentric with the central gear axis (15), can be generated by the central gear (14) being drivable with a rotary movement about the central gear axis (15) and / or the intermediate gear (18) being drivable with a rotary movement about the intermediate gear axis (19) by means of the drive motor (12) of the drive unit (11), • that the ring gear (16) is provided on the ring gear wall (28) with a wall opening (29) in which the press ram (6) is movably received for carrying out the working stroke directed away from the gear (13) of the drive unit (11), wherein the press ram (6) can be arranged along the stroke path of the working stroke in a stroke-ready position in which the press ram (6) projects with a gear-side end opposite the inner circumferential surface (27) of the ring gear (16) and • that the press ram (6) arranged in the stroke-ready position can be acted upon at the gear-side end by the intermediate wheel (18) carrying out the orbital movement in order to carry out the working stroke.

Description

[0001] The invention relates to a drive device for actuating a machining tool of a mechanical pressing device for material processing, with a drive unit and with a press ram, • wherein the drive unit comprises a drive motor and a mechanical gear arranged between the drive motor and the press ram and • wherein the press ram can be driven with a working stroke by means of the drive unit to actuate the machining tool.

[0002] The invention also relates to a processing unit of a mechanical pressing device for material processing equipped with a drive device of the aforementioned type, as well as to a mechanical pressing device for material processing with such a processing unit.

[0003] Generic mechanical pressing devices are designed, for example, as presses for forming or as presses for the separating processing of workpieces. The tools used on the presses for workpiece processing are actuated by a press ram, which is driven by the drive motor of a drive unit of the press. A gear is provided between the drive motor and the press ram for power transmission. Different types of gears are commonly used. Mechanical gears used include eccentric gears or - as in the case of a generic rotary swaging machine according to DE 10 2010 014 602 A1 - gears with a motor-driven external rotor ring, which in turn drives an annular roller cage with a circular movement around a working chamber of the machine.The roller cage is equipped with pressure rollers which move together with the roller cage on an orbit concentric with the machine's working area. Hammer rams are movably guided in the radial direction of the axis of the machine's working area on a ram guide arranged between the machine's working area and the roller cage. In an initial position, the hammer rams protrude into the path of the rotating pressure rollers with one end of the ram on the pressure roller side. At the protruding end of the ram, the hammer rams are acted upon by the pressure rollers moving along their orbit and are thereby moved towards the working area with a working stroke in the radial direction of the working area axis. The hammer rams act on the machine's rotary swaging tools with their ends on the working area side and thereby cause forming movements of the rotary swaging tools towards a workpiece arranged in the machine's working area for forming.

[0004] The object of the present invention is to provide a compact and flexibly configurable drive for a mechanical pressing device and a mechanical pressing device with such a drive.

[0005] According to the invention, this object is achieved by the drive device according to claim 1, by the processing unit according to claim 10 and by the mechanical pressing device according to claim 17.

[0006] In the case of the invention, a gear arranged between a drive motor and a press ram is designed in the manner of a planetary gear. The gears provided are a central gear, an outer ring gear, and at least one intermediate gear arranged radially between the central gear and the ring gear. The intermediate gear is in contact on its outer peripheral surface, on the one hand, with an outer peripheral surface of the central gear and, on the other hand, with an inner peripheral surface of the ring gear. The central gear is fixedly mounted on a support structure of the drive device and rotatably movable about a central gear axis. The intermediate gear is fixedly mounted on an intermediate gear carrier relative to the latter and rotatably movable about an intermediate gear axis. The intermediate gear carrier, in turn, is rotatably movable about a carrier axis. The ring gear is fixedly mounted on the support structure of the drive device and rotatably fixed about a ring gear axis.The drive motor drives the central gear with a rotary movement about the central gear axis and / or the intermediate gear with a rotary movement about the intermediate gear axis. As a result, the intermediate gear performs an orbital movement, in which the intermediate gear moves with the intermediate gear axis along an orbit that is concentric with the central gear and the ring gear. The ring gear has a wall opening on a ring gear wall provided with the inner circumferential surface of the ring gear, in which wall opening the press ram of the drive device according to the invention is movably received for performing a working stroke directed away from the gear of the drive unit. In a stroke-ready position, the press ram protrudes with a gear-side end opposite the inner circumferential surface of the ring gear. The intermediate gear rotating between the central gear and the ring gear acts on the gear-side end of the press ram arranged in the stroke-ready position.As a result, the press ram executes a working stroke starting from the stroke-ready position, due to which the machining tool of the machining unit according to the invention connected to the press ram is actuated for machining the workpiece.

[0007] The drive device according to the invention and the processing unit according to the invention are compact units which can be combined with one or more similar drive devices depending on the respective application.

[0008] Particular embodiments of the invention according to independent claims 1, 10 and 17 result from dependent claims 2 to 9, 11 to 16 and 18.

[0009] In a preferred embodiment of the drive device according to the invention, the gear-side end of the press ram is provided with a cam contour which can be acted upon by the rotating intermediate wheel and whose geometry is designed to control the working stroke of the press ram and the resulting machining movement of the machining tool of the machining unit according to the invention (claim 2).

[0010] A desirable movement of the press ram during its working stroke is free of acceleration jerks. To this end, the cam contour according to the invention can be provided, in particular, with a concave inlet for the intermediate gear and a convex geometry adjoining the inlet, the latter controlling at least the majority of the working stroke of the press ram.

[0011] In a further embodiment of the invention, the press ram is constructed in multiple parts. At least one cam part forming the cam contour is preferably detachably connected to the rest of the press ram (claim 3). Due to the multi-part design, it is particularly possible to design the individual parts of the press ram independently of one another and thus tailored to their specific requirements.

[0012] For the latter reason, in a further development of the machining unit according to the invention, the press ram and the machining tool form a preferably detachable structural unit (claim 11). In addition, in the case of a detachable connection of the press ram and the machining tool, it is possible to combine one and the same press ram with different, even dissimilar, machining tools.

[0013] Claim 12 relates to particularly practical designs of the invention. According to the claim, a forging tool, for example a rotary swaging tool, or a tool for separating workpiece machining, for example a punching tool, is provided as the machining tool. If the press ram and the machining tool form a detachable unit, the drive device according to the invention, the machining unit according to the invention, and the press according to the invention can be easily configured for different machining types by exchanging the machining tool.

[0014] The contact required for the functionality of the drive device between the intermediate gear and the central gear on the one hand, and the intermediate gear and the ring gear on the other, is established according to the invention by a positive connection (claim 4) or by a force connection (claim 5), in particular a friction connection. It is conceivable that one contact is established by a positive connection and the other by a force connection.

[0015] In order to ensure contact between the gear wheels, particularly in the event of wear, manufacturing tolerances and / or component distortion due to operation, for example due to heat, a further embodiment of the drive device according to the invention provides that the circumferential surface of at least one of the gear wheels is formed by preferably shell-like wheel segments which follow one another in the circumferential direction of the gear wheel(s), and that at least one of the wheel segments is elastically prestressed in the radial direction against the opposite gear wheel (claim 6).

[0016] For corresponding reasons, claim 7 provides that gear wheels in contact with one another form a gear wheel pair, and that at least one of the gear wheels in the pair is conical and the other is counter-conical. By axially adjusting the gear wheels of a gear wheel pair relative to one another, any tolerances that impair the contact between the gear wheels can be compensated for.

[0017] In order to optimize the power transmission between the drive motor and the press ram, in a further preferred embodiment of the invention, several intermediate wheels are provided between the central wheel and the outer ring gear of the drive device according to the invention, which intermediate wheels are offset from one another along the orbit of the intermediate wheels (claim 8).

[0018] Particularly in the case of the inventive design with several intermediate gears, in the interest of long-term functionality and / or in the interest of ease of maintenance of the drive device according to the invention, the inner circumferential surface of the ring gear in a region opposite the wall opening of the ring gear wall provided for the press ram is formed by a wear element which is preferably detachably inserted into the remaining cavity wall (claim 9).

[0019] According to claim 13, the processing unit according to the invention is modular. Several drive devices according to the invention are combined with one another.

[0020] According to claim 14, the machining unit according to the invention has a workspace in which a workpiece can be arranged for machining. The drive devices of the machining modules are controlled in a coordinated manner by means of a control unit. The machining modules are arranged relative to the workspace, and the drive devices of the machining modules are controllable in a coordinated manner, such that a workpiece arranged in the workspace can be machined at different locations using the machining tools of the machining modules.

[0021] For example, depending on the application and / or to compensate for manufacturing or operational tolerances, at least one of the processing modules in the case of the processing unit according to claim 15 can be variably positioned relative to the working space of the processing unit. By appropriately positioning the processing modules, in particular, the dimensions of a working space of the processing unit delimited by the processing modules can be adapted to changing dimensions of the workpieces arranged in the working space for processing.

[0022] According to claim 16, a machining unit according to the invention can comprise machining modules with machining tools in the form of rotary swaging tools, wherein the machining modules are arranged relative to the working space of the machining unit in such a way that the machining modules are opposite one another in the working space.

[0023] The subject matter of claim 18 is a corresponding rotary swaging machine according to the invention.

[0024] The invention is explained in more detail below using exemplary schematic representations. Fig. 1 a perspective view of a modular processing unit of a rotary swaging machine, Fig. 2 the processing unit according to Fig. 1 in the perspective view in the direction of an arrow II in Fig. 1, Fig. 3 the processing unit according to the Fig. 1 and Fig. 2 in the vertical plan view in the direction of an arrow III in Fig. 2, Fig. 4 a processing module of the processing unit according to the Fig. 1 to 3 in the front view, Fig. 5 the processing module according to Fig. 4 in side view, Fig. 6 a structural unit comprising a press ram and a rotary swaging tool of the processing module according to Fig. 4, Fig. 7 a cam part of the press ram according to Fig. 6, Fig. 8 a structural unit comprising the press ram according to the Fig. 6 and Fig. 7 as well as a punching tool and Fig. 9 and Fig. 10 a machining module with a segmented ring gear and pre-tensioned ring gear segments.

[0025] According to the Fig. 1 to 3, a mechanical pressing device designed as a rotary swaging machine 1 has a modular processing unit 2. Four identical processing modules 4 are provided on a frame 3 of the processing unit 2.

[0026] One of the processing modules 4 of the processing unit 2 is in the Fig. 4 and Fig. 5 shown individually.

[0027] According to the Fig. 4 and Fig. 5, the processing module 4 has a rotary swaging tool 5 as a processing tool. The rotary swaging tool 5 forms a structural unit with a press ram 6 and is detachably connected to the press ram 6.

[0028] In detail, the rotary swaging tool 5 and the press ram 6 are in Fig. 6. The press ram 6 is therefore formed in two parts and comprises a cam part 8 provided with a cam contour 7 and a remaining press ram 9, into which the cam part 8 is detachably fitted and on which the detachable connection of the press ram 6 to the rotary swaging tool 5 is established. Details of the cam part 8 are shown in Fig. 7 shown.

[0029] The press ram 6 is part of a drive device 10 for actuating the rotary swaging tool 5.

[0030] Evidentially Fig. 4, the drive device 10 comprises, in addition to the press ram 6, a drive unit 11 with a drive motor 12, which in the example shown is designed as a torque motor, and with a mechanical gear 13 arranged between the drive motor 12 and the press ram 6.

[0031] The transmission 13 of the drive unit 11 is designed in the manner of a planetary gear and has, as gear wheels, a central gear 14 with a central gear axis 15, an outer ring gear 16 with a ring gear axis 17 coinciding with the central gear axis 15, and six intermediate gears 18 arranged in the radial direction between the central gear 14 and the ring gear 16 with intermediate gear axes 19 which run parallel to the central gear axis 15 and the ring gear axis 17.

[0032] The central gear is mounted on a shaft 21 of the drive motor 12 and, via the shaft 21 and the drive motor 12 connected to it, is mounted on a support structure 22 of the drive device 10 in a stationary manner and rotatably about the central gear axis 14. The intermediate gears 18 are mounted on an intermediate gear carrier 23 designed as a gear cage in a stationary manner and rotatably about the intermediate gear axes 19. The intermediate gear carrier 23, together with the intermediate gears 18, is rotatable about a support axis 24 coinciding with the central gear axis 15 and the ring gear axis 17. The ring gear 16 is mounted on the support structure 22 of the drive device 10 in a stationary manner and is non-rotatably mounted about the ring gear axis 17.

[0033] On outer circumferential surfaces 25, the intermediate gears 18 are in contact, on the one hand, with an outer circumferential surface 26 of the central gear 14 and, on the other hand, with an inner circumferential surface 27 of the ring gear 16. The inner circumferential surface 27 of the ring gear 16 is provided on a ring gear wall 28.

[0034] The hollow wheel wall 28 has a wall opening 29 in which the press ram 6 is movably guided in the radial direction of the central wheel axis 15. In Fig. 4, the press ram 6 is in a stroke-ready position in which it projects with its gear-side end provided with the cam contour 7 relative to the inner circumferential surface 27 of the ring gear 16.

[0035] To actuate the rotary swaging tool 5, the central gear 14 is driven by the drive motor 12 of the drive unit 11 with a rotary movement about the central gear axis 15. Due to a frictional engagement between the outer circumferential surfaces 25 of the intermediate gears 18 on the one hand and the outer circumferential surface 26 of the central gear 14 and the inner circumferential surface 27 of the ring gear 16 on the other hand, the rotary movement of the central gear 14 caused by the drive motor 12 generates an orbital movement of the intermediate gears 18 relative to the central gear 14 and the ring gear 16. During the orbital movement of the intermediate gears 18, the intermediate gear axes 19 move along an orbit 30 concentric with the central gear axis 15, along which the intermediate gears 18 are offset from one another.

[0036] During their orbital movement, the intermediate gears 18 successively pass the wall opening 29 on the ring gear wall 28 and the gear-side end of the press ram 6 arranged in the stroke-ready position, which protrudes opposite the inner circumferential surface 27 of the ring gear 16. In this case, an intermediate gear 18 first moves over a concave inlet contour 31 of the cam contour 7 on the gear-side end of the press ram 6, then over a convex actuating contour 32 and finally over a concave outlet contour 33 of the cam contour 7 ( Fig. 7). At the convex actuating contour 32, the intermediate gear 18 acts on the gear-side end of the press ram 6 arranged in the stroke-ready position, which protrudes relative to the inner circumferential surface 27 of the ring gear 16, such that the press ram 6 executes a working stroke directed away from the gear 13 of the drive unit 11 against the action of a restoring force generated by return springs 20, thereby actuating the rotary swaging tool 5 for workpiece machining.

[0037] Once an intermediate gear 18 has passed the apex of the concave run-out contour 33 at the gear-side end of the press ram 6, the press ram 6 is returned to the stroke-ready position by the return springs 20 before the press ram 6 is driven by the next intermediate gear 18 with a further working stroke. The oscillating movement thus performed by the press ram 6 is in Fig. 4 is illustrated by a double arrow. Due to the geometry of the cam contour 7, the press ram 6 performs its working strokes without acceleration jerks.

[0038] Reaction forces occurring during actuation of the rotary swaging tool 5 by the press ram 6 are dissipated by the rotating intermediate gears 18 into the hollow gear wall 28, particularly in a region radially opposite the press ram 6. This region of the cavity wall 28 is therefore subject to a particularly high degree of wear. For this reason, the inner circumferential surface 27 of the hollow gear 16, in the region opposite the wall opening 29 of the hollow gear wall 28, is formed by a wear element 34, which is detachably inserted into the remaining cavity wall 28.

[0039] On the rotary swaging machine 1, the processing modules 4 of the processing unit 2 are arranged opposite each other in pairs in a working space 35 ( Fig. 3).

[0040] By means of a Fig. 3, the drive devices 10, in particular the drive motors 12 of the drive units 11, are controlled in a coordinated manner such that the rotary swaging tools 5 of the processing modules 4 process a workpiece arranged in the working space 35 in the desired manner at different locations.

[0041] To adapt the machining unit 2 to changing dimensions, in particular to changing diameters of the workpieces to be machined, each machining module 4 is provided with an adjustment device 37. Using the adjustment devices 37, the machining modules 4 can be adjusted relative to one another to adapt the working space 35 to the dimensions of the workpieces to be machined. Conventional spindle adjustment devices, for example, can be used as adjustment devices 37.

[0042] In Fig. 8 is used as a machining tool instead of the one on the press ram 6 in Fig. A punching tool 38 is provided for the rotary swaging tool 5 provided in the rotary swaging tool 6. By using the resulting assembly of press ram 6 and punching tool 38 on the drive device 10, the drive device can be converted for punching workpiece processing, in particular for punching sheet metal processing, and used on a corresponding mechanical pressing device.

[0043] The Fig. 9 and Fig. 10 shows a possible design of the processing module 4 in two consecutive cutting planes of the supporting structure 22.

[0044] The inner circumferential surface 27 of the ring gear 16 is partly formed by shell-like gear segments 39, which follow one another in the circumferential direction of the ring gear 16. In the radial direction, the gear segments 39 are connected by means of preload springs 40 ( Fig. 9) are elastically preloaded against the opposing intermediate wheels 18. In case of any radial movements, the wheel segments 39 are guided by guide pins 41 on the support structure 22 ( Fig. 10). QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2010 014 602 A1

[0003]

Claims

[1] Drive device for actuating a machining tool (5, 38) of a mechanical pressing device (1) for material processing, with a drive unit (11) and with a press ram (6), • wherein the drive unit (11) comprises a drive motor (12) and a mechanical gear (13) arranged between the drive motor (12) and the press ram (6) and • wherein the press ram (6) for actuating the machining tool (5, 38) can be driven by means of the drive unit (11) with a working stroke, characterized by , • that the transmission (13) of the drive unit (11) has, as transmission wheels, a central gear (14) with a central gear axis (15), an outer ring gear (16) with a ring gear axis (17) coinciding with the central gear axis (15), and at least one intermediate gear (18) arranged in the radial direction between the central gear (14) and the ring gear (16) with an intermediate gear axis (19) which runs parallel to the central gear axis (15) and the ring gear axis (17), - wherein the central gear (14) is in contact with an outer peripheral surface (25) of the intermediate gear (18) on an outer peripheral surface (26) of the central gear (14), and the intermediate gear (18) is in contact with an inner peripheral surface (27) of the ring gear (16) on the outer peripheral surface (25) of the intermediate gear (18), which inner peripheral surface is provided on a ring gear wall (28) and runs coaxially with the ring gear axis (17), - wherein the central wheel (14) is mounted on a supporting structure (22) of the drive device in a stationary manner and is rotatable about the central wheel axis (15), - wherein the intermediate wheel (18) is mounted on an intermediate wheel carrier (23) in a stationary manner and rotatably about the intermediate wheel axis (19), and the intermediate wheel carrier (23) is rotatably movable together with the intermediate wheel (18) about a carrier axis (24) running parallel to the intermediate wheel axis (19), and - wherein the ring gear (16) is arranged stationary on the support structure (22) of the drive device and is rotationally fixed about the ring gear axis (17), • that a circular movement of the intermediate gear (18), which is carried out by the intermediate gear (18) relative to the central gear (14) and relative to the ring gear (16) and thereby with the intermediate gear axis (19) along an orbit (30) concentric with the central gear axis (15), can be generated by the central gear (14) being drivable with a rotary movement about the central gear axis (15) and / or the intermediate gear (18) being drivable with a rotary movement about the intermediate gear axis (19) by means of the drive motor (12) of the drive unit (11), • that the ring gear (16) is provided on the ring gear wall (28) with a wall opening (29) in which the press ram (6) is movably received for carrying out the working stroke directed away from the gear (13) of the drive unit (11), wherein the press ram (6) can be arranged along the stroke path of the working stroke in a stroke-ready position in which the press ram (6) projects with a gear-side end opposite the inner circumferential surface (27) of the ring gear (16) and • that the press ram (6) arranged in the stroke-ready position can be acted upon at the gear-side end by the intermediate wheel (18) carrying out the orbital movement in order to carry out the working stroke. [2] Drive device according to claim 1, characterized bythat the gear-side end of the press ram (6) is provided with a cam contour (7) which can be acted upon by the intermediate wheel (18) during the orbital movement and whose geometry is designed to control the working stroke of the press ram (6). [3] Drive device according to claim 2, characterized by that the press ram (6) is designed in several parts and has at least one cam part (8) forming the cam contour (7), which is preferably detachably connected to the rest of the press ram (9). [4] Drive device according to one of the preceding claims, characterized by , • that the central wheel (14) and the intermediate wheel (18) are in positive contact with one another on an external toothing of the central wheel (14) forming the outer circumferential surface (26) of the central wheel (14) and on an external toothing of the intermediate wheel (18) forming the outer circumferential surface (25) of the intermediate wheel (18) and / or • that the intermediate gear (18) and the ring gear (16) are in positive contact with one another on an external toothing of the intermediate gear (18) forming the outer circumferential surface (25) of the intermediate gear (18) and on an internal toothing of the ring gear wall (28) forming the inner circumferential surface (27) of the ring gear (16). [5] Drive device according to one of claims 1 to 3, characterized by , • that the central wheel (14) and the intermediate wheel (18) are in frictional contact with each other on the outer circumferential surface (26) of the central wheel (14) and on the outer circumferential surface (25) of the intermediate wheel (18) and / or • that the intermediate gear (18) and the ring gear (16) are in force-locking contact with one another on the outer circumferential surface (25) of the intermediate gear (18) and on the inner circumferential surface (27) of the ring gear (16). [6] Drive device according to one of the preceding claims, characterized by , • that the circumferential surface of at least one of the gear wheels is formed by preferably shell-like wheel segments (39) which follow one another in the circumferential direction of the gear wheel(s) and • that at least one of the wheel segments (39) is elastically prestressed in the radial direction against the opposite gear wheel. [7] Drive device according to one of the preceding claims, characterized by that gear wheels in contact with one another form a gear wheel pair and that of the gear wheels of at least one of the gear wheel pairs, one gear wheel is conical and the other gear wheel is counter-conical. [8] Drive device according to one of the preceding claims, characterized by that between the central wheel (14) and the outer ring gear (16) there are provided a plurality of intermediate wheels (18) which are offset from one another along the orbit (30) of the intermediate wheels (18). [9] Drive device according to one of the preceding claims, characterized by that the inner circumferential surface (27) of the ring gear (16) is formed in a region opposite the wall opening (29) of the ring gear wall (28) by a wear element (34) which is preferably detachably inserted into the remaining ring gear wall (28). [10] Processing unit of a mechanical pressing device (1) for material processing, with at least one processing tool (5, 38) and with a drive device by means of which the processing tool (5, 38) can be actuated for material processing, characterized by that the drive device (10) according to one of claims 1 to 9 is provided as the drive device. [11] Processing unit according to claim 10, characterized by that the press ram (6) of the drive device (10) and the machining tool (5, 38) form a preferably detachable structural unit. [12] Processing unit according to claim 10 or claim 11, characterized by that a forging tool or a tool for separating workpiece machining is provided as the machining tool (5, 38). [13] Processing unit according to one of claims 10 to 12, characterized by , • that the machining tool (5, 38) and the drive device (10) for actuating the machining tool (5, 38) form a machining module (4) of the machining unit and • that at least one further processing module (4) is provided with a processing tool (5, 38) and a drive device (10) according to one of claims 1 to 9. [14] Processing unit according to claim 13, characterized by , • that a working space (35) is provided in which a workpiece can be arranged for processing, • that a control unit (36) is provided, by means of which the drive devices (10) of the processing modules (4) can be controlled in a coordinated manner and • that the processing modules (4) are arranged relative to the working space (35) and the drive devices (10) of the processing modules (4) can be controlled in a coordinated manner by means of the control unit (36) in such a way that a workpiece arranged in the working space (35) can be processed at different locations by means of the processing tools (5, 38) of the processing modules (4). [15] Processing unit according to claim 14, characterized by that in order to change the working space (35) at least one of the processing modules (4) can be moved relative to at least one other processing module (4). [16] Processing unit according to claim 14 or claim 15, characterized by , • that processing modules (4) with processing tools (5) in the form of rotary swaging tools are provided and • that the processing modules (4) are arranged relative to the working space (35) of the processing unit in such a way that the processing tools (5) of the processing modules (4) are opposite one another in the working space (35). [17] Mechanical pressing device for material processing, with a processing unit, characterized by that the processing unit (2) according to one of claims 10 to 16 is provided as the processing unit. [18] Mechanical pressing device according to claim 17, characterized by that the mechanical pressing device is designed as a rotary swaging machine (1) and has a processing unit according to claim 16 as the processing unit.

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