Riveting device, mandrel accommodating part and assembling method of riveting device

Abstract

The invention relates to a riveting device (1) comprising a riveting tool (10) and a drive device (30) for actuating the riveting tool (10). The riveting tool (10) has a riveting mouth (11) and a mandrel holder (12) which can be moved relative to the riveting mouth (11) along an operating axis (W). The drive device (30) has a drive element (A) arranged to move along an action axis (W) in order to drive the mandrel receptacle (12). The drive element (A) is connected to the mandrel holder (12) directly or indirectly by means of a threaded connection (20), and the threaded connection (20) is formed by rotating the mandrel holder (12) and the drive element (A) relative to each other about an axis of rotation (D). The riveting device (1) further comprises a locking element (50) in a locking position (V) in which the mandrel receptacle (12) is mechanically locked in a rotational position relative to the drive element (33) against rotation about the axis of rotation (D). The preset locking element (50) reaches the locking position (V) by a movement in the radial direction with respect to the axis of rotation (D). The invention also relates to a mandrel holder (12) and to a method for assembling a riveting device (1).

Description

Technical Field

[0001] The present disclosure relates to a riveting device, and in particular to a blind rivet installation device, a blind rivet nut installation device and a blind rivet bolt installation device. The present disclosure also relates to a mandrel receiving part and a method for assembling a riveting device. Background Art

[0002] Riveting devices are generally used to produce a riveted connection at a connection point between two or more materials, such as metal sheets, where the materials come into contact with each other. A plastically deformable, usually cylindrical connecting element, usually referred to as a rivet, is used to form a riveted connection. The rivet usually has a prefabricated mounting head at one end. To produce a riveted connection, the rivet is inserted into a connection hole at the connection point up to the mounting head, and then the other end of the rivet is plastically deformed to form a head.

[0003] Riveting devices can also be used to thread thin-walled components. For this purpose, rivet nuts or rivet screws are used, in which a rivet is combined with a threaded element. The rivet nut or rivet screw is inserted into a prefabricated riveting hole in the component and then plastically deforms the area of ​​the rivet to form a head.

[0004] Conventional riveting devices usually comprise a riveting tool, which is arranged to cause plastic deformation to form a ram. In order to actuate the riveting tool, the riveting device has a drive device arranged in the housing of the device. The drive device is usually electromechanical and comprises, for example, an electric motor and a spindle drive, which is designed as a ball screw drive with a threaded spindle and a spindle nut. The spindle nut is usually driven by an electric motor, and the threaded spindle is secured against twisting by a torque support, so that when the spindle nut rotates, the threaded spindle moves axially and acts on the riveting tool at the same time.

[0005] Such a riveting device is known from EP 0 527 414 A1. The riveting device is designed for blind rivets and is arranged to pull the rivet mandrel out of the rivet body of the blind rivet by applying a pulling movement while the rivet body is subjected to an upset forming an upset. The pulling movement is performed by a mandrel holder driven by a drive device via a threaded spindle, to which the rivet mandrel is fixed. The mandrel holder is received in a tool holder and is held in a manner that it can be moved relative to a riveting nozzle fastened to the tool holder in order to perform the pulling movement. The rivet mandrel is inserted into the tool holder through the riveting nozzle as far as the mandrel holder, and the riveting device is then placed at the position to be riveted.

[0006] The mandrel holder is usually one of the maintenance parts of the riveting device. Therefore, the mandrel holder is usually disassembled from time to time for maintenance and / or cleaning. In order to make disassembly and reassembly easier, the mandrel holder is usually screwed onto the front end of the threaded spindle, as is the case with known riveting devices.

[0007] A locking mechanism is usually used to lock the spindle holder in a desired rotational position to prevent rotation relative to the threaded spindle. WO 02 / 098585A2 discloses a locking mechanism that locks the spindle holder in a desired rotational position to prevent rotation relative to the threaded spindle by an axial locking movement. Due to the structural type, the locking mechanism must be actively moved by the user to unlock the locking mechanism. Due to the axial locking movement, the locking mechanism requires a certain amount of structural space in the axial direction. Summary of the invention

[0008] Therefore, in the course of continuous improvement, it can be noted that there is a need to improve the compactness of the riveting device. This is based on the expectation that the improved compactness will make it easier to reach riveting locations that are difficult to access, so as to be able to install a rivet at this location. In addition, it is also expected that the improved compactness will make the riveting device lighter and / or more convenient and / or easier to handle.

[0009] One embodiment of the basic riveting device comprises a riveting tool and a drive device for actuating the riveting tool. For example, the riveting device, in particular the riveting tool, is suitable for blind riveting, wherein the riveting process is carried out from the side of the material to which the blind rivet is to be attached via a rivet mandrel. Instead of blind rivets, blind rivet nuts or blind rivet bolts can also be used.

[0010] The riveting tool preferably has a riveting nozzle and a mandrel holder, which can be moved relative to the riveting nozzle in the direction of the action axis or in the direction of the action axis. For example, the mandrel holder comprises a chuck housing, which can be moved relative to the riveting nozzle in the direction of the action axis or in the direction of the action axis, and at least one clamping element, in particular a clamping jaw, which can be moved along a clamping stroke in the chuck housing.

[0011] The drive device preferably has a drive element, which is particularly arranged to be moved along the active axis, in particular for driving the spindle receiving part. The drive element can be a threaded spindle, for example a threaded spindle of a spindle drive, in particular a threaded spindle of a ball screw. Alternatively, the drive element can be a reciprocating piston. The drive device can be an electromechanical drive, for example an electromechanical drive with an electric motor, or a pneumatic drive, for example a pneumatic drive with a pneumatic drive, or a hydraulic drive, for example a hydraulic drive with a hydraulic drive.

[0012] The drive element is preferably connected to the spindle receiving part directly or indirectly, for example, via an intermediate element, via a threaded connection. In particular, the threaded connection is formed by rotating the spindle receiving part and the drive element relative to each other about a rotation axis. For example, the rotation axis is arranged coaxially with the active axis or the rotation axis is located on the active axis.

[0013] The basic riveting device preferably has a locking element. The locking element is preferably in a locking position or brought into a locking position. In the locking position, the mandrel receptacle is preferably mechanically locked in a preferably predetermined or fixed rotational position relative to the drive element to prevent rotation about the rotation axis.

[0014] An embodiment of the riveting device provides an improvement in compactness, wherein the locking element is brought into the locked position by a movement in the radial direction relative to the axis of rotation. Due to the radial direction of movement of the locking element, the structure of the riveting device is more compact in the axial direction compared to the axial direction of movement of the locking element. This in turn makes the riveting device easier to operate. It is also easier to reach riveting positions that are difficult to access, so that rivets can be installed in riveting positions that are difficult to access.

[0015] In one embodiment, the threaded connection comprises two connection parts which have a thread and can rotate relative to each other about a rotation axis, wherein one connection part is assigned to the spindle receiving part and the other connection part is assigned to the drive element. In particular, one connection part is fixedly arranged on the spindle receiving part, in particular formed on the spindle receiving part, for example molded on the spindle receiving part. In particular, the other connection part is fixedly arranged on the drive element, in particular formed on the drive element, for example molded on the drive element.

[0016] In this case, the improved riveting device can be designed so that the thread of one of the connecting parts is formed in a threaded hole, and one connecting part has a through hole extending radially from the threaded hole, in which the locking element is received in a manner that it can move radially relative to the rotation axis. In particular, the other connecting part has a recess, such as a notch, in the circumferential direction, in which the locking element engages in a locking manner. This facilitates a technically simple design in order to achieve a radial locking movement of the locking element.

[0017] The improved riveting device can also be designed so that the recess and / or the locking element has a release profile in the circumferential direction relative to at least one connection part. In this way, the locking element can be unlocked in a simple manner by applying a rotational force. This is because, when a predetermined rotational force acts on the threaded connection, the locking element is pressed radially outward from the recess by the release profile.

[0018] The improved riveting device can also be designed so that the connecting part provided with the recess has at least one (preferably multiple) additional recesses in the circumferential direction, into which the locking element can be inserted. This means that the mandrel holder can be locked in another rotational position by rotating the mandrel holder in a range of 360 degrees relative to the drive element. This is conducive to enabling the mandrel holder to be locked as close as possible to the desired axial distance of the mandrel holder relative to the drive element and / or as close as possible to the axial stop for the mandrel holder. This also makes it possible to adjust the axial distance of the mandrel holder relative to the drive element with the smallest step size by locking the locking element in the corresponding recess according to the desired axial distance.

[0019] The improved riveting device can also be designed so that the locking element engages in the contour of the drive element in the locked position and is released from the drive element in the unlocked position. By directly using the drive element for locking, an axial intermediate element can be omitted. In this regard, this measure is also intended to reduce the axial structural length of the riveting device.

[0020] The improved riveting device can also be designed so that the locking element is arranged outside the threaded connection in the axial direction relative to the rotation axis. Therefore, the load-bearing capacity of the thread forming the threaded connection is not affected by the locking element.

[0021] The improved riveting device can also be designed so that the spring ring acts in a spring-elastic manner around the axis of rotation and in particular in radial direction relative to the axis of rotation. In particular, the spring ring is operatively connected to the locking element in the radial direction so that in the unlocked position of the locking element, in which the locking element is in a radially extended position, the spring ring applies a radial force to the locking element. For example, the spring ring surrounds the connecting part provided with the through hole for the locking element and / or rests on it. For example, the locking element has a groove, in which the spring ring engages with the peripheral part. For example, the spring ring is an O-ring.

[0022] These measures are intended to create a feel that allows the user to tactilely perceive the locking action. This is achieved, for example, in the following way: when the user rotates the spindle receiving part relative to the drive element around the rotation axis with a rotation force that overcomes the locking position, the locking element is pushed radially outward from the locking position against the force of the spring ring and automatically returns to the locking position due to the force of the spring element. The locking element can also be firmly held on the riveting device, in particular on the connecting part provided with the through hole, by the spring ring.

[0023] In another embodiment, a tool holder is provided, in which a mandrel holder that can move along the action axis is accommodated. For example, a rivet nozzle is arranged at one axial end of the tool holder, and the rivet nozzle is fastened or molded on one axial end of the tool holder, for example.

[0024] In this embodiment, the improved riveting device can be designed as follows: the spring ring is a sealing ring, which is used to seal the mandrel receiving part relative to the tool receiving part. This makes the spring ring have a dual function. This dual function achieves improved functional concentration.

[0025] The improved riveting device can also be designed so that the tool holder extends in a direction directly onto the locking element, so that the locking element is fixed by the tool holder to prevent the locking element from loosening from the locked position. Thus, pushing the tool holder onto the spindle holder can be used to simultaneously lock the locking element in the locked position. Thus, a separate actuation step by the user is omitted in this way. Pushing the tool holder onto the spindle holder is a step that must be performed when installing the tool holder on the riveting device.

[0026] In order to secure the locking element against loosening from the locked position by pushing the tool holder onto the spindle holder, the locking element should have a longitudinal extension in the radial direction relative to the rotation axis, the size of which is greater than the radial distance between the circumferential portion of the threaded hole and the outer circumferential portion of the connecting part provided with the threaded hole in the region of the through-hole.

[0027] If the spring ring described above acts on the locking element and is in particular arranged between the inserted tool holder and the locking element, the size of the longitudinal extension formed by the locking element and in particular by the spring element should be greater in the radial direction relative to the rotation axis than the radial distance between the circumferential portion of the threaded hole and the outer circumferential portion of the connecting part provided with the threaded hole in the region of the through hole.

[0028] Simple production of the locking element and in particular of the resulting locking mechanism is advantageous if the locking element is cylindrical with its central axis being radial to the axis of rotation.

[0029] In another embodiment, the riveting device is designed as a manual riveting device and comprises a handle portion, which, for example, has a longitudinal extension transverse to the action axis. For example, the handle portion is formed on the device housing, in particular is molded on the device housing. The riveting device can be held in the hand or guided manually by means of the handle portion. In particular, the riveting device can be manually placed at the location to be riveted by means of the handle portion.

[0030] Further developments essentially come from a method for assembling a riveting tool, in particular the above-mentioned riveting tool, which method comprises the following steps:

[0031] i) connecting the mandrel receiving part and the drive element of the riveting device by forming a threaded connection;

[0032] ii) rotating the spindle receiver and the drive element relative to each other about the rotation axis until a desired rotational position of the spindle receiver relative to the drive element is reached and the locking element engages in a locking position in which the spindle receiver is locked relative to the drive element against rotation about the rotation axis.

[0033] This improves the ease of use for the user in mounting the spindle holder on the drive element and locking the spindle holder at the desired axial distance from the drive element. For this purpose, only a rotational movement is required, which is required in any case during screwing together to form the threaded connection. The user does not need to perform a separate actuation movement to actuate the locking element.

[0034] Further progress has been made in a further refinement of the method, wherein step ii) comprises the following sub-steps:

[0035] ii.1) rotating the spindle receiving part and the drive element relative to each other about the axis of rotation up to an axial stop;

[0036] ii.2) rotating the spindle holder and the drive element relative to each other about the rotation axis away from the axial stop until the desired rotational position of the spindle holder relative to the drive element is reached and the locking element reaches a locking position in which the spindle holder is locked relative to the drive element against rotation about the rotation axis.

[0037] This operation process is intended to make it simpler or easier for the user to adjust the axial distance between the spindle receiving part and the drive element.

[0038] A further improvement of the method brings about a further improvement, wherein, after performing step ii) or performing sub-steps ii.1) and ii.2), the method further comprises the following steps:

[0039] iii) Pushing the tool holder onto the locking element to prevent the locking element from coming loose from the locked position.

[0040] Thus, the tool holder is mounted on the riveting device or the supporting structure to achieve the final locking of the mandrel holder. For this final locking, the user does not need to perform a separate actuation movement or locking movement.

[0041] According to one aspect, a mandrel receiving part for the above-mentioned riveting device is proposed. The mandrel receiving part comprises a cylindrical base body having a section for receiving a rivet mandrel or a threaded rivet mandrel and having a threaded hole for forming a threaded connection with a driving element of the riveting device.

[0042] In the proposed mandrel receiving member, the base body has a through hole extending radially outward from the threaded hole, and the through hole is arranged to accommodate the locking element so that the locking element can be moved in the direction of the threaded hole. For example, the mandrel receiving member includes a locking element received in the through hole. Therefore, the mandrel receiving member is suitable for being mounted on the riveting device described above and achieving the advantages described above.

[0043] According to another aspect, a blind rivet setting device is provided. The blind rivet setting device comprises the above-described riveting device, wherein a rivet mandrel of a blind rivet to be installed is received in a mandrel receiving part of the riveting device.

[0044] According to another aspect, a blind rivet nut installation device is provided. The blind rivet nut installation device comprises the above-described riveting device, wherein a threaded rivet mandrel for a blind rivet nut to be installed is accommodated in a mandrel receiving part of the riveting device.

[0045] According to another aspect, a blind rivet bolt installation device is provided. The blind rivet bolt installation device comprises the above-described riveting device, wherein a threaded rivet mandrel of a blind rivet bolt to be installed is accommodated in a mandrel accommodation part of the riveting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Further details and features are obtained from the following description of several exemplary embodiments with reference to the accompanying drawings, in which:

[0047] Figure 1 An exemplary embodiment of a riveting device is shown in a schematic sectional view, which has a riveting tool and a drive device for actuating the riveting tool.

[0048] Figure 2 by Figure 1 An exemplary partial riveting device is shown in a schematically enlarged detail of the region of a tool holder, wherein a mandrel holder is accommodated and a locking element for the mandrel holder is in a locked position.

[0049] Figure 3 The riveting device is shown along Figure 2 An exemplary cross-sectional view of the section line XX in FIG.

[0050] Figure 4 Based on Figure 2] shows an exemplary riveting device with the tool holder disassembled, wherein the locking element is in the unlocked position,

[0051] Figure 5 Along the Figure 4 The cross-sectional view along the section line XX in FIG. 1 shows an exemplary riveting device,

[0052] Figure 6 Based on Figure 2 ] shows an exemplary riveting device with the tool holder disassembled, wherein the locking element is in the locked position,

[0053] Figure 7 Along the Figure 6 The cross-sectional view along the section line XX in FIG. 1 shows an exemplary riveting device,

[0054] Figure 8 A schematic partial diagram shows a Figure 1 A possible implementation of a blind rivet installation device of the exemplary riveting device in

[0055] Fig. 9 A schematic partial diagram shows a Figure 1 A possible implementation of a rivet nut installation device of the exemplary riveting device in

[0056] Fig.10 A schematic partial diagram shows a Figure 1 A possible implementation of a pull rivet bolt installation device of the exemplary riveting device in FIG. DETAILED DESCRIPTION

[0057] Figure 1 The structure of an exemplary embodiment of a riveting device 1 is shown, which is also referred to as a mounting device in the professional field. The exemplary riveting device 1 is suitable for setting or mounting rivets using a blind riveting method, and therefore the exemplary riveting device 1 is designed to use blind rivets.

[0058] The exemplary riveting device 1 comprises a riveting tool 10 and a drive device 30 for actuating the riveting tool 10. The riveting tool 10 is preferably assigned to a tool holder 4. The drive device 30 is preferably assigned to a device housing 5, in particular accommodated in the device housing 5. The tool holder 4 is preferably a metal holder. The device housing 5 is preferably a plastic housing.

[0059] An exemplary riveting device 1 can be a manual riveting device. The manual riveting device 1 has, for example, a gripping surface 2.1, which can be at least partially formed on the device housing 5. For example, the manual riveting device 1 has a handle portion 2, which is at least partially formed by the device housing 5. By means of the gripping surface 2.1 or the handle portion 2, the riveting device 1 can be held in the hand when it is placed on a workpiece to set a rivet, in particular a blind rivet. The riveting process itself is then performed by actuating the riveting tool 10 by the drive device 30.

[0060] The drive device 30 is, for example, an electromechanical drive device. The electromechanical drive device 30 comprises, for example, an electric motor 31 having a rotatable output shaft 31.1 and preferably a spindle drive 32 drivable by the electric motor 31. The spindle drive 32 is preferably arranged to convert a rotational drive motion from the output shaft 31.1 into a translational drive motion acting along an action axis W to actuate the riveting tool 10. The spindle drive 32 may be a ball screw drive.

[0061] In the exemplary riveting device 1, for example, at least one (preferably two) reduction stages 37, 37' are provided between the electric motor 31 and the spindle drive 32. For example, the reduction stages 37, 37' are connected one after another in the power flow. For example, the reduction stages 37, 37' use a common intermediate shaft 38. For example, at least one of the reduction stages 37, 37' is a spur gear stage, and the corresponding gear element is a spur gear.

[0062] To supply the drive device 30 with electrical energy, a preferably replaceable energy storage device, such as a battery 3, can be provided, which is arranged, for example, in the end region of the handle part 2 facing away from the riveting tool 10. In this respect, the riveting device 1 can be a battery-powered device.

[0063] The riveting tool 10 may include a riveting nozzle 11 and a mandrel receiving part 12, which can be moved relative to the riveting nozzle 11 in the direction of the action axis W. For example, the mandrel receiving part 12 has a chuck housing 13 and at least one (preferably a plurality of) clamping elements 14, 14', in particular clamping jaws, which can be moved along a clamping stroke in the chuck housing 13. Preferably, the riveting nozzle 11 and / or the mandrel receiving part 12 and / or the chuck housing 13 and / or the clamping elements 14, 14' are metal parts.

[0064] The rivet mouth 11 is used, for example, to receive a rivet to be installed ( Figure 1The rivet is a blind rivet (not shown), which preferably has a through hole 11.1, into which the rivet mandrel of the rivet can be inserted. The mandrel holder 12 serves, for example, to fix the rivet mandrel, so that a non-displaceable connection is formed between the received rivet mandrel and the mandrel holder 12. This can be achieved, for example, by a chuck housing 13, in which a clamping element 14, 14' is movably arranged, by means of which the rivet mandrel is fixed to the exemplary riveting device, in particular clamped in the chuck housing 13.

[0065] The riveting tool 10 can be driven by the drive device 30 so that the mandrel holder 12 or the chuck housing 13 and the rivet mandrel fixed therein are moved away from the riveting mouth 11 in the direction of the action axis W. This is achieved, for example, by the drive device 30 pulling the mandrel holder 12 or the chuck housing 13 away from the riveting mouth 11. This known operating principle and the blind riveting that can be performed using this principle are described in more detail in document EP 0 116 954 A2, which is hereby cited to complete and supplement the present disclosure, but it should be pointed out that this document may give the same terms a meaning different from the current meaning.

[0066] The riveting nozzle 11 is preferably fastened to the tool holder 4, for example screwed together with the tool holder 4. The spindle holder 12, in particular the chuck housing 13, is preferably accommodated in the tool holder 4 in a manner that it can move in the direction of the action axis W. For example, the tool holder 4 has an elongated, in particular tubular, base body. In this regard, the tool holder 4 is also referred to as a mounting sleeve in the professional field. For example, the riveting nozzle 11 is fastened to one end of the tool holder 4, while the opposite end of the tool holder 4 faces the device housing 5.

[0067] The spindle transmission 32 is preferably arranged in the device housing 5. The spindle transmission 32 preferably comprises a threaded spindle 33 with a screw thread and a spindle nut 34 that engages with the threaded spindle 33 or can engage with the threaded spindle 33. The threaded spindle 33 preferably has a front end 33.1 and an opposite rear end 33.2, the front end 33.1 facing the spindle receiving part 12, in particular facing the chuck housing 13. The threaded spindle 33 and the spindle nut 34 are preferably arranged coaxially with respect to the transmission axis. The spindle axis of the threaded spindle 33 is preferably located on the transmission axis. Preferably, the output shaft 31.1 of the motor 31 is arranged parallel to the transmission axis. Preferably, the transmission axis or the spindle axis is located on the action axis W.

[0068] For example, the threaded spindle 33 and the spindle nut 34 are designed such that the spindle nut 34 is a transmission element driven or drivable by the motor 31, and the threaded spindle 33 is used to perform a translational drive movement to actuate the riveting tool 10. For example, the threaded spindle 33 is connected at its front end 33.1 directly or, for example, indirectly via an intermediate piece in a non-displaceable manner with the spindle holder 12 or the chuck housing 13. For example, the spindle nut 34 is also supported in a rotatable manner in the device holder 5 in the radial direction relative to the gear axis or the action axis W by at least one, preferably two, radial bearings 35, 35'.

[0069] In the exemplary riveting device 1, for example, a torque support 41 is provided to fix the threaded spindle 33 so as to prevent rotation relative to the device housing 5. For example, the torque support 41 is arranged on the threaded spindle 33, in particular, it is connected to the threaded spindle 33 in a fastened or non-rotatable manner. For example, the torque support 41 preferably presses against the abutment 43 by at least one sliding body or rolling body to form an anti-twist device for the threaded spindle 33. The abutment 43 itself can be arranged in a non-rotatable manner or in a fixed manner that cannot be twisted relative to the device housing 5. For example, the abutment 43 has at least one guide rail, on which the torque support 41 is guided when the threaded spindle 33 performs a translational movement along the action axis W, while maintaining an anti-twist state.

[0070] In the exemplary riveting device 1, for example, a spring element 15 is provided, which acts by force (for example via a presser 16) into the mandrel receptacle 12. For example, the spring element 15 is arranged in the threaded spindle 33. For example, the threaded spindle 33 and / or the torque support 41 serve as a mating retainer for the spring element 15.

[0071] The force of the spring element 15 can be used as a preload force, by which the rivet mandrel is fixed in the mandrel receptacle 12 or at least supported. The spring element 15 is provided, for example, in order to exert a spring force on the clamping elements 14, 14' in the chuck housing 13. As a result, the clamping elements 14, 14' are pressed into a clamping position against a rivet mandrel, for example of a blind rivet, which is inserted into the chuck housing 13 through the through-opening 11.1 of the riveting nozzle 11. The spring element 15 is, for example, a compression spring.

[0072] The threaded spindle 33 is preferably designed as a hollow spindle having a channel 40 extending in its longitudinal extension direction. The remaining part of the rivet mandrel remaining during the riveting process can be extracted from the riveting tool 10 through the channel 40. For example, in this case, the pressing piece 16 arranged at the front end 33.1 of the threaded spindle 33 is accommodated in the channel 40, and the pressing piece 16 itself is designed as a hollow body with a channel 16.1.

[0073] For example, the channel 40 leads to a tubular element 60 at the rear end 33.2 of the threaded spindle 33, which in turn leads to a collecting container 70. For example, a mandrel disposal path is realized in this way via the threaded spindle 33, wherein the collecting container 70 can serve as a collector for the mandrel remainder. Preferably, the collecting container 70 is arranged in a fixed manner relative to the device housing 5, in particular in a detachable manner, for example fastened to the device housing 5, in particular fastened to the device housing 5 in a detachable manner.

[0074] For example, the torque support 41 is also designed as a hollow body with a channel, which is for example a component of the spindle disposal path to the collecting container 67. For example, the torque support 41 engages in the channel 40 of the threaded spindle 33 and the tubular element 60 engages in the channel of the torque support 41.

[0075] In the exemplary riveting device 1, for example, a support structure 39 is provided on which, on the one hand, the tool holder 4 is axially supported relative to the action axis W and, on the other hand, an axial bearing 36 is axially supported relative to the action axis W, which axial bearing 36 is preferably designed as a compression bearing and which in turn is axially supported on the spindle nut 34. The riveting mouth 11 is therefore supported via the tool holder 4 and the support structure 39 on the axial bearing 36, which in turn is supported on the spindle nut 34. In this way, a load path (last load path) is formed for the installation forces occurring during the riveting process, which load path bypasses or largely bypasses the device housing 5.

[0076] Figure 2 by Figure 1 The enlarged detail of FIG. 1 shows an exemplary riveting device 1 in the region of the tool holder 4 . For the sake of clarity, compared to Figure 1 , Figure 2 The illustration is simplified by omitting parts and further schematically illustrating. Figure 2 middle, Figure 1The threaded spindle 33 is generalized and referred to below as drive element A. This takes into account the fact that the drive element A can in principle also be a reciprocating piston or other drive element of the drive spindle receiving part. A reciprocating piston can be used instead of the threaded spindle 33. Alternatively, the reciprocating piston can be driven pneumatically. For example, a reciprocating piston is used in a riveting device with a pneumatic drive.

[0077] As especially from Figure 2 As can be seen in the drawing, the drive element A is connected to the spindle receiving part 12 via a threaded connection 20. The threaded connection 20 is formed by rotating the spindle receiving part 12 and the drive element A relative to each other about a rotation axis D. The rotation axis D lies on the active axis W, for example.

[0078] The threaded connection 20 preferably comprises two connection parts 21, 22 which have a thread and can rotate relative to each other about the rotation axis D. For example, one of the connection parts 21, 22 is assigned to the spindle receiving part 12, while the other connection part 22 is assigned to the drive element A. For example, one connection part 21 is formed on the spindle receiving part 12, in particular is molded on the spindle receiving part 12. For example, the other connection part 22 is formed on the drive element A, in particular is molded on the drive element A.

[0079] For example, the thread of one of the connecting parts 21, 22, in particular the thread of the connecting part 21 assigned to the spindle receiving part 12, is formed in a threaded hole 23. For example, the threaded hole 23 is centrally located with respect to the rotation axis D and / or coaxially with the rotation axis D. For example, the thread of the other connecting part 22 is designed as an external thread.

[0080] In order to prevent the threaded connection 20 from loosening and / or to permanently hold the connection parts 21, 22 in a desired rotational position relative to each other and thus to permanently maintain the spindle receiving part 12 and the drive element A at a desired axial distance, a locking element 50 is provided, for example. Figure 2 In FIG. 2 , the locking element 50 is in a locking position V in which the spindle receptacle 12 is mechanically locked in a rotational position relative to the drive element A, so that a rotation of the spindle receptacle 12 about the axis of rotation D is prevented.

[0081] In the exemplary riveting device 1 , the riveting tool 10 is, for example, arranged so that the locking element 50 reaches the locking position V by a movement in the radial direction relative to the rotation axis D. This facilitates a compact construction of the riveting device 1 in the axial direction, since the locking movement of the locking element 50 , which requires structural space, is performed in the radial direction relative to the rotation axis D, rather than in the axial direction.

[0082] In order to be able to lock in this way, a through hole 24, for example, is provided in the connection part 21 assigned to the spindle receiving part 12. For example, one end of the through hole 24 opens into the threaded hole 23. For example, the through hole 24 extends radially outwards from the threaded hole 23. For example, in the axial direction relative to the rotation axis D, the through hole 24 opens into the threaded hole 23 outside the threaded connection 20. For example, the locking element 50 is accommodated in the through hole 24 in a radially movable manner relative to the rotation axis D. With respect to the other connection part 22, for example, a recess 25 is provided on the circumference, into which the locking element 50 engages in a locking manner.

[0083] In order to illustrate the radial structure of the riveting tool 10 in the region of the locking element 50, Figure 3 An exemplary riveting device 1 is shown along Figure 2 A cross-sectional view of the section line XX. Figure 3 In particular, it can be seen that the connecting part 21 provided with the recess 25 can have at least one (preferably multiple) additional recesses 25', 25" on the circumferential portion, and the locking element 50 can be introduced into the additional recess. The axial distance between the spindle receptacle 12 and the drive element A can be set to the desired value in small steps via multiple recesses 25, 25', 25", wherein the locking element 50 is in the corresponding rotational position at the respectively set value.

[0084] Preferably, at least one recess 25 or 25' or 25" and / or the locking element 50 has a release contour 26 or 26' ( Figure 3 and Figure 5 ), so that when a predetermined rotational force is applied to the threaded connection 20, for example by a user, the locking element 50 is pressed radially outward from the recess 25 by the release contour 26 or 26'. The release contour 26 or 26' enables the locking element 50 to be unlocked by a rotational force applied to the threaded connection 20, which is applied anyway when the threaded connection 20 is twisted to mount the spindle receiving part 12 on the drive element A. Thus, a separate or different unlocking movement for unlocking the locking element 50 is omitted.

[0085] In the exemplary riveting device 1, the connecting portion 21 assigned to the mandrel receiving part 12 is surrounded by, for example, a spring ring 51. The spring ring 51 preferably acts in a spring-elastic manner in the radial direction relative to the rotation axis D. For example, the spring ring 51 is an O-ring. The spring ring 51 is preferably connected to the locking element 50 in an operative manner in the radial direction. For example, the locking element 50 has a recess 53 or other recess in one of its axial end faces, in which the spring ring 56 engages. For example, a surrounding groove 21.1 is provided on the connecting portion 21 assigned to the mandrel receiving part 12, in which the spring ring 51 is received. In this regard, the spring ring 51 can be used as a sealing ring, which seals the mandrel receiving part 12 relative to the tool receiving part 4. In addition, the spring ring 51 enables the locking element 50 to be fixed to prevent it from falling out of the through hole 24.

[0086] Due to the spring action of the spring ring 41, the user can obtain a tactile perception of the ratchet effect during the rotational movement of the spindle receiving member 12 relative to the drive element A about the rotation axis D. Therefore, the user can feel when the locking element 50 reaches the locking position V in the corresponding rotational position of the spindle receiving member 12 relative to the drive element A. In this way, the user can adjust the axial distance of the spindle receiving member 12 relative to the drive element A relatively accurately in small steps.

[0087] In the exemplary riveting device 1 , the locking element 50 is, for example, cylindrical and its central axis extends radially relative to the rotation axis D. For example, the locking element 50 has an abutment surface 52 extending transversely to its central axis and resting on a shoulder 24 . 1 in the through hole 24 when the locking element 50 is in the locking position V. Thus, the locking element 50 is secured against falling into the threaded hole 23, for example when the mandrel receiving part 12 is removed from the riveting device 1 .

[0088] Use below Figures 4 to 7 A possible operation process for assembling the spindle receiving part 12 and the tool receiving part 4 is described by way of example. Figure 4 An exemplary riveting device 1 is shown, with the tool holder 4 disassembled and the locking element 50 in the unlocked position E. Figure 5 Along the Figure 4 An exemplary riveting device 1 is shown in a cross-sectional view along the section line XX of FIG. Figure 6 An exemplary riveting device 1 is shown, with the tool holder 4 disassembled and the locking element 50 in the locking position V. Figure 7 Along the Figure 6 An exemplary riveting device 1 is shown in a cross-sectional view along the section line XX of FIG.

[0089] The riveting tool 10 is mounted, for example, on a drive device 30 of an exemplary riveting device in the following manner: In a first step, the mandrel holder 12 and the drive element A are connected to each other by forming a threaded connection 20. The mandrel holder 12 and the drive element A are rotated relative to each other about the rotation axis D up to the axial stop 27. This state is as follows: Figure 4 and Figure 5 When the axial stop 27 is reached, the locking element 50 is in the unlocked position E. The axial stop 27 can be formed by a shoulder in the drive element A, against which the connecting part 21 provided with the threaded hole 23 hits when the connecting part 21 is completely screwed onto the other connecting part 22.

[0090] In the unlocked position E, the locking element 50 is in a radially extended position, in which the locking element 50 is disengaged from at least one recess 25 or 25 ′ or 25 ″ of the connecting portion 22 assigned to the drive element A. In the unlocked position E, the spring ring 51 exerts a radial force inwardly on the locking element 50 .

[0091] In a further step, the spindle receiving part 12 is now rotated about the rotation axis D relative to the drive element A away from the axial stop 27 until the desired rotation position of the spindle receiving part 12 relative to the drive element A is reached and preferably the locking element 50 reaches the locking position V of one of the recesses 25, 25', 25". In this rotation position, the spindle receiving part 12 is locked relative to the drive element 50 against rotation about the rotation axis D. This state is as follows: Figure 6 and Figure 7 shown.

[0092] Then, the tool holder 4 is preferably pushed at least onto the locking element 50. This pushing takes place during the installation of the tool holder 4 on the riveting device 1. By pushing the tool holder, the locking element 50 is simultaneously secured against loosening from the locking position V. This state is as shown in FIG. Figure 2 and Figure 3 To achieve this fixation, the locking element 50 preferably has a longitudinal extension in the radial direction relative to the rotation axis D, the size of which is greater than the radial distance S between the peripheral portion of the threaded hole 23 and the outer peripheral portion of the connecting part 21 provided with the threaded hole 23 in the region of the through hole 24.

[0093] The proposed riveting device 1 enables tool-free replacement of the mandrel receptacle 12 and the tool receptacle 4 , wherein the mandrel receptacle 12 can be locked relative to the drive element A against rotation about the rotation axis D, which is optimized with regard to the axial installation space requirement.

[0094] Figure 8A possible embodiment of a blind rivet installation device 100 is shown in an exemplary manner. The blind rivet installation device 100 has the structure of the exemplary riveting device 1 described above, wherein Figure 8 , for the sake of simplicity, only a section of an exemplary riveting device 1 is shown in the region of a riveting tool 10. In the blind rivet setting device 100, a rivet mandrel 120 of a blind rivet 110 is inserted into a riveting mouth 11 and accommodated in a mandrel accommodation part 12, in particular in a chuck housing 13, and is fixed in the axial direction, for example, by at least one clamping element 14 or 14'. Figure 8 The blind rivet 110 is shown in a state before riveting, wherein the rivet body 130 of the blind rivet 110 is still in an initial state.

[0095] Fig. 9 A possible embodiment of a rivet nut installation device 200 is shown as an example. The rivet nut installation device 200 has the structure of the exemplary riveting device 1 described above, wherein the mandrel receiving member 12 and the pressing member 16 are modified for the rivet mandrel used for the rivet nut, and the rivet mandrel is a threaded rivet mandrel. For example, the pressing member 16 has the function of screwing the threaded rivet mandrel to the rivet nut. For simplicity, Fig. 9 1 shows only a section of the riveting device 1 in the region of the riveting tool 10 . In the blind rivet nut setting device 200 , a threaded rivet mandrel 220 for a blind rivet nut 210 is accommodated in the mandrel accommodation part 12 . Fig. 9 The rivet nut 210 is shown in a state before riveting, wherein the rivet body 230 of the rivet nut 210 is still in its initial state.

[0096] For example, in the exemplary blind rivet nut installation device 200, the push piece 16 is inserted into the receiving portion of the threaded rivet mandrel 220 and forms a form-fitting, rotationally fixed connection with the threaded rivet mandrel 220 through the receiving portion. Figure 1 ) acts axially on the push piece 16 , thereby holding the push piece 16 in the receiving portion of the threaded rivet mandrel 220 .

[0097] Fig.10 A possible embodiment of a rivet bolt installation device 300 is shown in an exemplary manner. The rivet bolt installation device 300 has the structure of the exemplary riveting device 1 described above, wherein the mandrel receiving portion 12 and the pressing member 16 are modified relative to the rivet mandrel of the rivet bolt, and the rivet mandrel is a threaded rivet mandrel. For example, the pressing member 16 has the function of screwing the threaded rivet mandrel to the screw-in portion of the mandrel receiving portion 12. Fig.10In the figure, for the sake of simplicity, only a part of the riveting device 1 in the area of ​​the riveting tool 10 is shown. In the blind rivet bolt installation device 300, the threaded rivet mandrel 320 of the blind rivet bolt 310 is accommodated in the mandrel accommodation part 12 via the screw-in part. Fig.10 The blind rivet bolt 310 is shown in a state before riveting, wherein the rivet body 330 of the blind rivet bolt 310 is still in its initial state.

[0098] For example, in the exemplary rivet bolt installation device 300, the pressing member 16 acts on the screw-in portion, and in particular, the pressing member 16 is inserted into the receiving portion of the screw-in portion and forms a shape-matched, rotationally fixed connection with the screw-in portion through the receiving portion. Figure 1 ) acts axially on the pressing piece 16, thereby holding the pressing piece 16 in the receiving portion of the screw-in part.

[0099] Especially from Figures 8 to 10 As can be seen in the figure, the mandrel receiving part 12 can have a cylindrical base body 12.1, which has, for example, a section 12.2 for receiving the rivet mandrel 120 or the threaded rivet mandrel 220 or 320 and the threaded hole 23 described above for forming a threaded connection 20 with the drive element A of the riveting device 1. The base body 12.1 can also have the through hole 24 described above, which extends radially outwards from the threaded hole 23 and is arranged to receive a locking element 50, wherein the locking element can be moved in the direction of the threaded hole 23. The above-mentioned spring ring 51 can be pulled around the base body 12.1 in the area of ​​the locking element 50.

[0100] Reference numerals list

[0101] 1 Riveting device

[0102] 2 Handle part

[0103] 2.1 Gripping surface

[0104] 3. Battery

[0105] 4 Tool holder

[0106] 4.1 Flange

[0107] 5 Device housing

[0108] 6. Maintain structure

[0109] 10 Riveting tools

[0110] 11 Rivet mouth

[0111] 11.1 Through Holes

[0112] 12 Spindle holder

[0113] 12.1 Basic ontology

[0114] 12.2 Sections

[0115] 13 Chuck housing

[0116] 14, 14' clamping element

[0117] 15 Spring element

[0118] 16 Press piece

[0119] 16.1 Channels

[0120] 20 Threaded connection

[0121] 21 Connection part

[0122] 21.1 Grooves

[0123] 22 Connection part

[0124] 23 Threaded hole

[0125] 24 Through Holes

[0126] 24.1 Shoulders

[0127] 25 recess

[0128] 25, 25', 25" recess

[0129] 26, 26' Release Profile

[0130] 27 Axial stop

[0131] 30 Drive unit

[0132] 31 Electric Motor

[0133] 31.1 Output shaft

[0134] 32 Spindle drive

[0135] 33 Threaded spindle

[0136] 33.1 Front end

[0137] 33.2 Rear end

[0138] 34 spindle nut

[0139] 35, 35' radial support

[0140] 36 axial bearing

[0141] 37, 37' reduction stage

[0142] 38 Intermediate shaft

[0143] 39Support structure

[0144] 40 channels

[0145] 41 Torque support

[0146] 43 abutment

[0147] 50 locking elements

[0148] 51 Spring Ring

[0149] 52 abutment surface

[0150] 53 concavity

[0151] 60 Tubular Components

[0152] 70 Collection Containers

[0153] 100 Blind Rivet Installation Device

[0154] 110 blind rivets

[0155] 120 rivet mandrel

[0156] 130 rivet body

[0157] 200 rivet nut installation device

[0158] 210 rivet nut

[0159] 220 Threaded Rivet Mandrel

[0160] 230 rivet body

[0161] 300 pull rivet bolt installation device

[0162] 310 pull rivet bolt

[0163] 320 Threaded Rivet Mandrel

[0164] 330 rivet body

[0165] ADrive Components

[0166] S radial distance

[0167] W action axis

[0168] D Rotation axis

[0169] V locked position

[0170] E unlock position.

Claims

1. A riveting device (1), comprising: A riveting tool (10) comprising a riveting mouth (11) and a mandrel receiving part (12) which can be moved relative to the riveting mouth (11) along an action axis (W); a drive device (30) for actuating the riveting tool (10) by means of a drive element (A), the drive element being arranged to move along the action axis (W) to drive the mandrel receiving part (12), wherein the drive element (A) is directly or indirectly connected to the mandrel receiving part (12) via a threaded connection (20), and the threaded connection (20) is formed in such a way that the mandrel receiving part (12) and the drive element (A) can rotate relative to each other about a rotation axis (D); a locking element (50), the locking element (50) being in a locking position (V) in which the spindle receiving part (12) is mechanically locked in a rotational position relative to the drive element (A) to prevent the spindle receiving part (12) from rotating about the rotation axis (D), Characterized in that the locking element (50) reaches the locking position (V) by moving in a radial direction relative to the rotation axis (D).

2. The riveting device according to claim 1, wherein the threaded connection (20) comprises two connection parts (21, 22) which have a thread and are rotatable relative to each other about the rotation axis (D), one of the connection parts (21) being assigned to the mandrel receiving part (12) and the other of the connection parts (22) being assigned to the drive element (A), in, The thread of one of the connecting parts (21, 22) is formed in a threaded hole (23), and one connecting part (21) has a through hole (24) extending radially from the threaded hole (23), the locking element (50) being received in the through hole in a manner that allows radial movement relative to the rotation axis (D), and wherein the other connecting part (22) has a recess (25) in the circumferential direction, the locking element (50) being engaged in the recess in a locking manner.

3. The riveting device according to claim 2, wherein: The locking element (50) has a longitudinal extension in the radial direction relative to the rotation axis (D), the size of which is greater than the radial distance (S) between the circumferential portion of the threaded hole (23) and the outer circumferential portion of the connecting part (21) provided with the threaded hole (23) in the area of ​​the through hole (24).

4. The riveting device according to claim 2 or 3, wherein: The recess (25) and / or the locking element (50) has a release contour (26; 26') in the circumferential direction relative to at least one of the connecting parts (21, 22).

5. The riveting device according to claim 2, wherein: The connecting part (21) provided with the recess (25) has at least one additional recess (25', 25") on the circumference. Preferably, the connecting part (21) provided with the recess (25) has a plurality of additional recesses (25', 25") on the circumference, and the locking element (50) can be guided into the additional recess.

6. Riveting device according to any one of the preceding claims, wherein: The locking element (50) is engaged in the contour of the drive element (A) in the locking position (V), and the locking element (50) is released from the engagement state with the contour of the drive element (A) in the unlocking position (E).

7. Riveting device according to any one of the preceding claims, wherein: The locking element (50) is arranged outside the threaded connection (20) in the axial direction relative to the rotation axis (D).

8. The riveting device according to claim 1 , comprising a spring ring (51) around the rotation axis (D), the spring ring (51) acting in a spring-elastic manner in the radial direction relative to the rotation axis (D), and the spring ring (51) is operably connected to the locking element (50) in the radial direction, so that in the unlocked position (E) of the locking element (50), the spring ring (51) applies a radial force to the locking element (50), in which unlocked position (E), the locking element (50) is in a radially extended position.

9. The riveting device according to claim 8, wherein: The spring ring (51) is a sealing ring which serves to seal the spindle holder (12) relative to a tool holder (4), wherein the spindle holder (12) is accommodated in the tool holder (4) in a manner that allows displacement along the effective axis (W).

10. The riveting device according to claim 1 , comprising a tool holder (4) which holds the mandrel holder (12) in a manner that allows it to move along the action axis (W), and the tool holder (4) extends above the locking element (50) in the direction of the action axis (W), so that the locking element (50) is fixed via the tool holder (4) to prevent it from loosening from the locking position (V).

11. Riveting device according to one of the preceding claims, wherein The locking element (50) is cylindrical, and the central axis of the locking element (50) is radial relative to the rotation axis (D).

12. A method for assembling a riveting device according to one of claims 1 to 11, comprising the following steps: i) connecting the spindle receiving member (12) and the drive element (A) by forming a threaded connection (20); ii) rotating the spindle holder (12) and the drive element (A) relative to each other around the rotation axis (D) until the spindle holder (12) reaches a desired rotation position relative to the drive element (A) and the locking element (50) engages in a locking position (V), in which the spindle holder (12) is locked relative to the drive element (50) to prevent the spindle holder (12) from rotating around the rotation axis (D).

13. The method according to claim 12, wherein step ii) comprises the following sub-steps: ii.1) rotating the spindle receiving part (12) and the drive element (A) relative to each other about the rotation axis (D) up to an axial stop (27); ii.2) rotating the spindle holder (12) and the drive element (A) relative to each other around the rotation axis (D) away from the axial stop (27) until the spindle holder (12) reaches a desired rotational position relative to the drive element (A) and the locking element (50) reaches a locking position (V), in which the spindle holder (12) is locked relative to the drive element (50) to prevent the spindle holder (12) from rotating around the rotation axis (D).

14. The method according to claim 12 or 13, wherein: The riveting device (1) to be assembled is designed according to claim 9, and the method comprises the following steps after step ii): iii) pushing the tool holder (4) onto the locking element (50) to prevent the locking element (50) from loosening from the locking position (V).

15. A mandrel holder (12) for a riveting device (1) according to one of claims 1 to 11, the mandrel holder (12) comprising: A cylindrical base body (12.1) having a section (12.2) for receiving a rivet mandrel (120) or a threaded rivet mandrel (220; 320) and a threaded hole (23) for forming a threaded connection (20) with a drive element (A) of the riveting device (1), The base body (12.1) has a through hole (24) extending radially outward from the threaded hole (23), and the through hole (24) is configured to receive the locking element (50) in a manner that enables the locking element (50) to move in the direction of the threaded hole (23).

16. The spindle housing according to claim 15, comprising a locking element (50) received in the through hole (23).

17. A blind rivet installation device (100), comprising a riveting device (1) according to one of claims 1 to 11, wherein: A rivet mandrel (120) of a blind rivet (110) to be installed is received in a mandrel receiving part (12) of the riveting device (1).

18. A blind rivet nut installation device (200), comprising a riveting device (1) according to one of claims 1 to 11, wherein: A threaded rivet mandrel (220) for a blind rivet nut (210) to be mounted is received in a mandrel receiving part (12) of the riveting device (1).

19. A pull rivet bolt installation device (300), comprising a riveting device (1) according to one of claims 1 to 11, wherein: A threaded rivet mandrel (320) of a blind rivet bolt (310) to be installed is received in a mandrel receptacle (12) of the riveting device (1).

Images