Riveting apparatus of compact construction

Abstract

The present disclosure comprises a riveting device (1) with a device housing (5), a riveting tool (10), and a drive unit (30) in the device housing (5) for actuating the riveting tool (10). The riveting tool (10) has a nozzle (11) and a mandrel holder (12) movable relative to the nozzle (11) along an effective axis (W). The drive unit (30) has a threaded spindle (33) with a drive thread (33.3), which is operatively connected to the mandrel holder (12) and is configured to be moved along the effective axis (W). The threaded spindle (33) is designed as a hollow spindle with a passage (40) extending in the direction of its longitudinal extent, in particular to provide a mandrel disposal path. The riveting tool (1) further comprises a pipe element (50) and a collection container (60). A mandrel channel is formed via the pipe element (50) from the passage (40) to the collection container (60).To improve compactness, the pipe element (50) is designed to engage in the passage (40) of the threaded spindle (33).

Description

[0001] The present disclosure relates to a riveting device and in particular a blind rivet setting device, a blind rivet nut setting device and a blind rivet screw setting device.

[0002] Riveting tools are typically used to create a riveted joint between two or more materials, such as sheet metal, at a joint where the materials meet. A plastically deformable, usually cylindrical, fastener, generally called a rivet, is used to form the riveted joint. The rivet usually has a pre-formed setting head at one end. To create the riveted joint, the rivet is inserted into a pre-drilled hole at the joint until the setting head is reached, and then the other end of the rivet is plastically deformed into a closed head.

[0003] Riveting tools can also be used to thread thin-walled components. This is achieved using rivet nuts or rivet screws, which combine a rivet with a threaded element. The rivet nuts or rivet screws are inserted into a pre-drilled rivet hole in the component, and then a portion of the rivet is plastically deformed to form a closing head.

[0004] Conventional riveting tools typically include a riveting die designed to create the rivet head through plastic deformation. To actuate the riveting die, the tools have a drive unit housed within a casing. This drive unit is often electromechanical and comprises, for example, an electric motor and a ball screw drive with a threaded spindle and a spindle nut. The spindle nut is usually driven by the electric motor, and the threaded spindle is secured against rotation by torque arms, so that when the spindle nut is turned, the threaded spindle moves axially and acts upon the riveting die.

[0005] Such a riveting tool is described in EP 0 527 414 A1. The riveting tool is designed and configured for blind riveting. By applying a pulling motion, a rivet mandrel is extracted from the rivet body of a blind rivet under a compression of the rivet body that creates a closing head, until the mandrel breaks off. The broken-off rivet mandrel fragment can be disposed of in a collection container via a through-hole in the threaded spindle and an adjoining pipe element.

[0006] In this riveting tool, the torque supports are attached to the outer circumference of the threaded spindle, specifically to the rear end of the spindle facing the collection container. The torque supports occupy a radial space at the rear end of the threaded spindle, which, in the vertical direction of the riveting tool towards the electric motor, is larger than the diameter of the threaded spindle in the area of ​​its drive thread.

[0007] In this riveting tool, the pipe element is axially fixed to the tool housing. For this purpose, an intermediate sleeve is axially fixed into a through-opening in the tool housing. The pipe element is attached to this intermediate sleeve at its center, and a bracket for the collection container is screwed to it at the other end. To perform these fastening functions, the intermediate sleeve protrudes from the inside of the tool housing by a certain length, thus occupying axial space within the tool housing.

[0008] As part of ongoing development, there is a need to improve the compactness of riveting tools. This is based on the expectation that improved compactness will make it easier to reach difficult-to-access riveting points and set rivets. Furthermore, it is expected that improved compactness will make the riveting tool lighter and / or more manageable.

[0009] One embodiment of a basic riveting device comprises a device housing, a riveting tool, and a drive unit, preferably located within the device housing, for actuating the riveting tool. For example, the riveting device, and in particular the riveting tool, is suitable for blind riveting, in which the riveting process is carried out from one side of the material to be fitted with a blind rivet by means of a rivet mandrel. A blind rivet nut or a blind rivet screw can also be used instead of a blind rivet.

[0010] Preferably, the riveting tool has a nozzle and a mandrel receptacle that is movable relative to the nozzle along or in the direction of an effective axis. For example, the mandrel receptacle comprises a chuck housing that is movable relative to the nozzle along or in the direction of the effective axis and at least one clamping element, in particular a clamping jaw, that is movable in the chuck housing along a clamping path.

[0011] Preferably, the drive device has a threaded spindle, preferably with a drive thread, which is operatively connected to the mandrel holder and is specifically designed to be moved along the effective axis. In particular, the threaded spindle is designed as a hollow spindle with a passage extending in the direction of its longitudinal extent, for example, to provide a mandrel disposal path. In particular, a torque support is associated with the threaded spindle, which secures the threaded spindle against rotation relative to the device housing.

[0012] An improved compactness is achieved in an embodiment of the riveting device where the torque support is attached via the through-hole on the threaded spindle. The through-hole of the threaded spindle is thus used to attach the torque support. This method of attachment requires less radial installation space compared, for example, to attachment on the outer circumference of the threaded spindle.

[0013] The improved riveting tool can be designed so that the torque support is attached to the threaded spindle by screwing it into the through-hole. This allows for a simple and stable attachment of the torque support to the threaded spindle.

[0014] Further improvements are achieved, additionally or alternatively, by an embodiment in which the torque support is attached to the threaded spindle by screwing it together via a fastening thread, wherein the fastening thread and the drive thread of the threaded spindle are opposed to each other. This prevents the screw connection between the torque support and the threaded spindle from loosening when the riveting tool is operated or during operation of the drive device. Instead, this method promotes the torque support automatically tightening during a pulling action by the threaded spindle or during movement of the threaded spindle. This simplifies assembly and saves costs.

[0015] For example, the mounting thread is formed in the through-hole of the threaded spindle. For example, the mounting thread is an internal thread. For example, the torque arm is screwed into the through-hole by engaging the mounting thread.

[0016] In one embodiment, the torque support has a base body that projects axially from the threaded spindle. In this case, the improved riveting device can be designed such that the base body, for example directly or indirectly via at least one intermediate element, forms an anti-rotation device against an abutment. This facilitates a technically simple implementation of the torque support, which is attached to the threaded spindle via the through-hole. For example, the abutment is fixed to the device housing and / or anti-rotationally secured against the device housing.

[0017] The improved riveting tool can further be designed such that the base body has a bore extending transversely, and in particular orthogonally, to the spindle axis of the threaded spindle, in which a magnetically acting element for a Hall sensor device, such as a permanent magnet, is accommodated. The base body thus has multiple functions, resulting in improved functional integration. Easy attachment of the magnetic element is facilitated if, for example, the intermediate element is an iron element (i.e., contains iron) and the bore is located close to the intermediate element. This allows the magnetic element to be held in the bore by the acting magnetic force.

[0018] The improved riveting device can further be designed such that, starting from the spindle axis, the base body has a radial extent in at least one spatial direction with respect to the spindle axis which is less than or equal to the radial extent of the threaded spindle in the region of the base body. Such radial compactness of the base body is made possible by the attachment of the torque support via the passage of the threaded spindle.

[0019] In one embodiment, the threaded spindle engages with a spindle nut of a spindle drive, and in particular, the drive unit has an electric motor and a reduction stage interposed between the electric motor and the spindle drive, preferably with an intermediate shaft. In particular, the reduction stage and / or the intermediate shaft and / or the output shaft of the electric motor is arranged axially parallel to the spindle axis of the threaded spindle. In particular, the reduction stage is arranged axially between the spindle nut and a wall section of the device housing.

[0020] In this embodiment, the improved riveting tool can be designed such that, extending from the axis of the intermediate shaft, the reduction stage has a radial extent that is smaller than the distance between the axis of the intermediate shaft and the outer surface of the base body and / or the outer surface of the threaded spindle. This reduces the required axial installation space, as it avoids the need for a series of axially separated components requiring clearance for the actual stroke of the threaded spindle and the reduction stage. Therefore, this measure also contributes to improving the compactness of the riveting tool.

[0021] Further progress is achieved, additionally or alternatively, by an embodiment in which the intermediate shaft is radially mounted to the housing via a radial bearing, and the radial bearing is located on the side of the reduction stage facing away from the housing wall section. This eliminates the need for a radial bearing on the side of the reduction stage facing the housing wall section, allowing the intermediate shaft to be shortened and thus saving axial installation space. A shorter intermediate shaft also results in a weight advantage. This is further enhanced by the measure of arranging a gear element of the reduction stage on the intermediate shaft in the region of a free end of the intermediate shaft facing the housing wall section, or at an end of the intermediate shaft facing the housing wall section.

[0022] In another embodiment, the riveting tool includes a spring element that exerts a force into the mandrel receptacle. For example, the spring element is configured to exert a force on the at least one clamping element into the chuck housing. In particular, the spring element is arranged in the passage of the threaded spindle.

[0023] In this embodiment, the improved riveting device can be designed such that a section or extension of the torque support located in the through-hole serves as a counter-support for the spring element. The torque support thus functions as part of the anti-rotation device for the threaded spindle and also provides a counter-support for the spring element. This multiple function of the torque support results in improved functional integrity.

[0024] In a further embodiment, the riveting device comprises a pipe element and a collection container, for example, for mandrel remnants or broken-off rivet mandrel pieces. In particular, a connecting channel, especially a mandrel channel, is formed via the pipe element from the threaded spindle to the collection container. The pipe element is attached to a wall section of the device housing, for example, the wall section described above. This wall section extends transversely, for example, orthogonally to the pipe axis of the pipe element. The wall section has an inner side facing the threaded spindle and an opposite outer side.

[0025] Further improvements in compactness are achieved additionally or alternatively by an embodiment in which the pipe element has a fastening structure that is essentially flush with the inside and / or outside of the wall section or is recessed relative to the inside and / or outside of the wall section. This eliminates the need for additional installation space in the axial direction relative to the effective axis or the spindle axis, which would otherwise be required for the fastening structure.

[0026] Further improvements in compactness are achieved additionally or alternatively by an embodiment in which the pipe element has a mounting structure with two flange sections, each extending along a different circumferential section around the outer circumference of the pipe element and having a flange surface that interacts with a mating surface of the wall section. The flange surfaces point in opposite directions and / or are axially aligned, with one mating surface located on the inside and the other on the outside of the wall section. This allows for a compact design for mounting the pipe element to the device housing in the axial direction with respect to the effective axis or the spindle axis. Installation of the pipe element on the device housing is also simplified, as no additional mounting elements are required.The two flange surfaces of the pipe element alone already provide axial locking of the pipe element relative to the device housing by means of a positive fit.

[0027] The further improved riveting device can be designed such that the device housing is multi-part and has at least two housing parts lying adjacent to each other in a single plane, each corresponding to one of the opposing surfaces of the wall section. This facilitates easy assembly of the pipe element to the device housing. The pipe element can be secured simply by joining the housing parts.

[0028] Further improvements in compactness are achieved additionally or alternatively in an embodiment in which the pipe element engages in the passage of the threaded spindle, in particular directly and / or immediately. This means that, in the axial direction with respect to the effective axis or the spindle axis, the installation space to be provided essentially only needs to be designed for the stroke achievable by the threaded spindle. In particular, the pipe element engages telescopically in the passage of the threaded spindle. In the present disclosure, this means that during a stroke movement of the threaded spindle, the pipe element moves more or less out of the passage, but preferably the engagement in the passage is maintained.

[0029] In another embodiment, the riveting tool is designed as a hand-held riveting tool and includes a handle, which, for example, has a longitudinal extension transverse to the working axis. The handle is formed, for example, on the tool housing, and in particular, is integrally molded onto it. The handle allows the riveting tool to be held in the hand or guided manually. In particular, the handle enables the riveting tool to be manually positioned at the point to be riveted.

[0030] Based on one aspect, a blind rivet setting tool is proposed. The blind rivet setting tool comprises the riveting tool described above and has a rivet mandrel for a blind rivet to be set, which is held in its mandrel holder.

[0031] Another aspect is the proposed blind rivet nut setting tool. This tool comprises the riveting tool described above and has a threaded rivet mandrel, held in its mandrel holder, for setting a blind rivet nut.

[0032] Another aspect is the proposed blind rivet screw setting tool. This tool comprises the riveting tool described above and has a threaded rivet mandrel for a blind rivet screw to be set, which is held in its mandrel holder.

[0033] Further details and features will become apparent from the following description of several exemplary embodiments with reference to the drawing. These show Fig. 1 shows an exemplary embodiment of a riveting device with a riveting tool and a drive unit for actuating the riveting tool in a schematic sectional view; Fig. 2 shows the exemplary riveting device in an enlarged section. Figure 1In the area of ​​the drive unit and a torque support, Fig. 3 shows the exemplary riveting device in an enlarged section in the area of ​​the torque support as a sectional view along the section line AA of the Figure 2 , Fig. 4 the torque support of the exemplary riveting device of the Figure 1 in a schematic representation as a perspective view, Fig. 5 the exemplary riveting device in an enlarged section of the Figure 1 in the area of ​​a pipe element for mandrel removal, Fig. 6 the pipe element of the exemplary riveting device of the Figure 1 In an enlarged area of ​​a fastening structure as a perspective view, Figs. 7 and 8 each show a housing part of a device housing for the exemplary riveting device of the Figure 1 in an enlarged area of ​​a receptacle for the pipe element of the Figure 6 , Fig. 9 a possible embodiment of a blind rivet setting tool with the exemplary riveting tool of the Figure 1In a schematic partial representation, Fig. 10 shows a possible embodiment of a blind rivet nut setting device with the exemplary riveting device of the Figure 1 in a schematic partial representation, and Fig. 11 a possible embodiment of a blind rivet screw setting device with the exemplary riveting device of the Figure 1 in a schematic partial representation.

[0034] Figure 1 Figure 1 shows the construction of an exemplary embodiment of a riveting tool 1, which is also referred to in technical circles as a setting tool. The exemplary riveting tool 1 is suitable for attaching rivets using the blind riveting method and is designed for the use of blind rivets.

[0035] The exemplary riveting device 1 comprises a riveting tool 10 and a drive unit 30 for actuating the riveting tool 10. Preferably, the riveting tool 10 is housed in a tool housing 4. Preferably, the drive unit 30 is housed in a device housing 5. Preferably, the tool housing 4 is a metal housing. Preferably, the device housing 5 is a plastic housing.

[0036] The exemplary riveting tool 1 can be a hand-held riveting tool. The hand-held riveting tool 1 has, for example, a gripping surface 2.1, which may be at least partially formed on the tool housing 5. For example, the hand-held riveting tool 1 has a handle part 2, which is at least partially formed by the tool housing 5. The gripping surface 2.1 or the handle part 2 allows the riveting tool 1 to be held in the hand when it is applied to a workpiece to set a rivet, in particular a blind rivet. The riveting process itself is then carried out by actuating the riveting tool 10 via the drive unit 30.

[0037] Preferably, the drive unit 30 is an electromechanical drive unit. The electromechanical drive unit 30 comprises, for example, an electric motor 31 with a rotatable output shaft 31.1 and preferably a spindle drive 32, which can be driven by the electric motor 31. Preferably, the spindle drive 32 is configured to convert a rotary drive motion originating from the output shaft 31.1 into a translational drive motion acting along an axis of action W for actuating the riveting tool 10. The spindle drive 32 can be a ball screw drive.

[0038] For the electrical power supply of the drive unit 30, a preferably replaceable electrical energy storage device, such as a battery 3, can be provided, which is arranged, for example, in the area of ​​an end 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.

[0039] The riveting tool 10 can comprise a nozzle 11 and a mandrel receptacle 12 movable relative to the nozzle 11 in the direction of an effective axis W. For example, the mandrel receptacle 12 has a chuck housing 13 and at least one, preferably several, clamping elements 14, 14', in particular clamping jaws, movable in the chuck housing 13 along a clamping path. Preferably, the nozzle 11 and / or the mandrel receptacle 12 and / or the chuck housing 13 and / or the clamping elements 14, 14' are made of metal.

[0040] The mouthpiece 11, for example, serves to hold a (in the Figure 1The chuck housing 12 (not shown) is used for setting rivets, in particular blind rivets, and preferably has a through-hole 11.1 for inserting the rivet mandrel. The mandrel receptacle 12 serves, for example, to fix the rivet mandrel, thus creating a non-displaceable connection between the mandrel and the mandrel receptacle 12. This can be achieved, for example, via the chuck housing 13 with the clamping elements 14, 14' movably arranged therein, by which the rivet mandrel is fixed, in particular clamped, in the chuck housing 13.

[0041] For example, a spring element 15 is provided which exerts a force, for example via a pressure element 16, on the mandrel receptacle 12. The force of the spring element 15 can be used as a preload force, which causes or at least assists in fixing the rivet mandrel in the mandrel receptacle 12. For example, the spring element 15 is provided to exert a spring force on the clamping elements 14, 14' into the chuck housing 13. This presses the clamping elements 14, 14' into the clamping position against a rivet mandrel, for example of a blind rivet, which is inserted into the chuck housing 13 via the through-hole 11.1 of the nozzle 11. For example, the spring element 15 is a compression spring.

[0042] The drive unit 30 can actuate the riveting tool 10 such that the mandrel holder 12 or the chuck housing 13, with the rivet mandrel fixed therein, is moved away from the nozzle 11 in the direction of the effective axis W. This occurs, for example, when the drive unit 30 pulls the mandrel holder 12 or the chuck housing 13 away from the nozzle 11. This known operating principle and the blind riveting that can be carried out with it are described in more detail in publication EP 0 116 954 A2, to which reference is hereby made for the purpose of completing and supplementing the present disclosure, with the note that the publication may assign a meaning to identical terms that differs from the meaning given here.

[0043] Preferably, the nozzle 11 is attached to the tool housing 4, for example, by screwing it to the housing. Preferably, the mandrel receptacle 12, in particular the chuck housing 13, is movably mounted in the tool housing 4 in the direction of the effective axis W. For example, the tool housing 4 is tubular in shape. For example, the nozzle 11 is attached to one end of the tool housing 4, and the opposite end faces the device housing 5.

[0044] Preferably, the spindle drive 32 is arranged in the device housing 5. Preferably, the spindle drive 32 comprises a threaded spindle 33 with a drive thread 33.3 and a spindle nut 34 that engages with or can be engaged with the spindle. Preferably, the threaded spindle 33 has a front end 33.1 facing the mandrel receptacle 12, in particular the chuck housing 13, and an opposite rear end 33.2. Preferably, the threaded spindle 33 and the spindle nut 34 are arranged concentrically with respect to a gear axis. Preferably, the spindle axis S of the threaded spindle 33 lies on the gear axis. Preferably, the output shaft 31.1 of the electric motor 31 is arranged parallel to the gear axis. Preferably, the gear axis or the spindle axis S lies on the effective axis W.

[0045] For example, the threaded spindle 33 and the spindle nut 34 are configured such that the spindle nut 34 is the gear element driven or driveable by the electric motor 31, and the threaded spindle 33 is used to perform the 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 indirectly, for example via an intermediate piece, to the mandrel receptacle 12 or the chuck housing 13 in a displacement-resistant manner. For example, the spindle nut 34 is also rotatably mounted in the device housing 5 in the radial direction with respect to the gear axis or the effective axis W via at least one, preferably two, radial bearings 35, 35'.

[0046] For example, the radial bearings 35, 35' are arranged at an axial distance from each other. For example, a drive point is located between the radial bearings 35, 35', via which the electric motor 31 is operatively connected to the spindle nut 34. For example, the radial bearings 35, 35' are rolling bearings, in particular deep groove ball bearings.

[0047] For example, the spindle nut 34 is axially supported with respect to the gear axis or the effective axis W by means of an axial bearing 36 in a support ring 39 which serves as a bearing housing, wherein the support ring 39 is supported axially via the tool housing 4 on the nozzle 11. The tool housing 4 itself is held, for example, by a retaining structure 6, such as an annular cover element, on the support ring 39, in particular loosely held.

[0048] Preferably, the support ring 39 is designed to be rigid in terms of deformation or compression. For example, the support ring 39 is a metal part. For example, the support ring 39 is a separate component. For example, the axial bearing 36 is an axial rolling bearing. In principle, the axial bearing 36 can also be a needle roller bearing.

[0049] As from the Figure 1As can be seen, at least one, preferably two, reduction stages 37, 37' can be interposed between the electric motor 31 and the spindle drive 32. For example, the reduction stages 37, 37' are connected in series 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 associated gear elements are spur gear wheels. The device housing 5 can also be used for the radial mounting of the reduction stages 37, 37'. The device housing 5 can also be used for the radial mounting of the electric motor 31.

[0050] With regard to the bearing arrangement of the spindle drive 32, in particular the spindle nut 34, the bearing arrangement of the reduction stages 37, 37', in particular the common intermediate shaft 38, and the bearing arrangement of the electric motor 31, reference is made to the German patent application with the official file number DE 10 2022 116 406.3 for the purpose of completing and supplementing the present disclosure, with the note that the patent application may assign a meaning to identical terms which differs from the meaning given here.

[0051] Preferably, the threaded spindle 33 is designed as a hollow spindle with a passage 40 extending along its longitudinal axis. The passage 40 allows any remaining rivet mandrel material from the riveting tool 10 to be removed via this passage. For example, in this case, the pressing element 16, located at the front end 33.1 of the threaded spindle 33, is received in the passage 40 and is itself designed as a hollow body with a passage 16.1.

[0052] For example, the passage 40 at the rear end 33.2 of the threaded spindle 33 opens into a pipe element 50, which in turn opens into a collection container 4. For example, a mandrel disposal path is thus implemented via the threaded spindle 33, with the collection container 4 serving as a collector for mandrel remnants. Preferably, the collection container 4 is fixed to the device housing 5, and in particular, detachably attached, for example, to the device housing 5.

[0053] Figure 2 The exemplary riveting device 1 is shown in an enlarged section in the area of ​​the spindle drive 32 and the pipe element 50. Figure 1 . Figure 3 The exemplary riveting device 1 is shown in a sectional view along the section line AA of the Figure 2As can be seen in particular from this, a torque support 41 is preferably provided, which is assigned, for example, to the threaded spindle 33, in particular to secure the threaded spindle 33 against rotation relative to the device housing 5.

[0054] In the exemplary riveting device 1, the torque support 41 is attached to the threaded spindle 33 via the through-hole 40, or rather, connected in a rotationally fixed manner. This allows for a saving of installation space in the radial direction with respect to the spindle axis S, since a region radially close to the center of the threaded spindle 33 is used for attaching the torque support 41.

[0055] Preferably, the torque support 41 is attached to the threaded spindle 33 by screwing it into the through-hole 40. For example, the threaded spindle 33 has a fastening thread 40.1, in particular an internal thread, in the through-hole 40 at its rear end 33.2, into which the torque support 41 is screwed. For example, the pitch of the fastening thread 40.1 is opposite to the pitch of the drive thread 33.3 of the threaded spindle 33. This enables the torque support 41 to tighten automatically during an actuating or pulling movement of the threaded spindle 33.

[0056] Preferably, the torque support 41 has a base body 41.1 which projects axially from the threaded spindle 33. Preferably, the torque support 41 has a section inserted in the passage 40, which is, for example, a projection 41.2 of the base body 41.1. For example, the projection 41.2 has a thread, in particular an external thread, via which the screw connection with the threaded spindle 33 is formed. For example, the projection 41.2 is used as a counter-support for the spring element 15 ( Figure 2 ).

[0057] Preferably, the base body 41.1 forms an anti-rotation device for the threaded spindle 33 against a support 43, for example via at least one intermediate element 42 or 42' ( Figure 3For example, the abutment 43 is arranged to prevent rotation relative to the device housing 5. For example, the abutment 43 is arranged within the device housing 5. For example, the abutment 43 is designed as a hollow body, in particular a cage-like hollow body, with an axially extending passage 43.1. For example, the base body 41.1 of the torque support 41 is received in the passage 43.1 of the abutment 43.

[0058] For example, the passage 43.1 of the abutment 43 has a non-circular, in particular polygonal, for example, quadrilateral cross-section. For example, the base body 41.1 of the torque support 41 has a non-circular, in particular polygonal, for example, quadrilateral cross-section. Preferably, the cross-section of the passage 43.1 and the cross-section of the base body 41.1 are configured to correspond to each other. Preferably, the abutment 43, in particular its passage 43.1, and the torque support 41, in particular the base body 41.1, are arranged coaxially with respect to the spindle axis S or the effective axis W. Preferably, the cross-section of the passage 43.1 of the abutment 43 and the cross-section of the base body 41.1 are configured such that a gap exists between the outer circumference of the base body 41.1 and the circumference of the passage 43.1.

[0059] Preferably, the abutment 43 has at least one guide track 43.2 or 43.2' on which the torque support 41 is guided while maintaining anti-rotation when the threaded spindle 33 performs a translational movement along the effective axis W. For example, the at least one guide track 43.2 or 43.2' is formed on a surface section of the passage 43.1 of the abutment 43 and / or on a surface section of a lateral recess in a side wall bounding the passage 43.1. For example, the at least one intermediate element 42 or 42' of the base body 41.1 is guided on the at least one guide track 43.2 or 43.2'. The at least one intermediate element 42 or 42' of the base body 41.1 can be or comprise a sliding element or a rolling element, such as a needle bearing or a plain bearing. The intermediate element 42 or 42' can, for example, be a cylindrical pin.

[0060] For example, the base body has a bore 44 or other hole in which a magnetically acting magnetic element 45 for a magnetic field-utilizing sensor device, such as a Hall sensor device, is received. For example, the bore 44 or hole is arranged with its central axis transverse to the spindle axis S. For example, the magnetic element is held in the bore 44 or hole by magnetic force. For this purpose, the intermediate element 42 or 42' has, for example, a corresponding metallic material, such as iron, or consists of it.

[0061] In the exemplary riveting device 1, the at least one reduction stage 37 is arranged axially between the spindle nut 34 and a wall section 7 of the device housing 5. Preferably, in this case, the reduction stage 37 has a radial extent, starting from the shaft axis A of the intermediate shaft 38, which is less than the distance D between the shaft axis A of the intermediate shaft 38 and the facing outer surface of the base body 41.1 and / or the threaded spindle 33 ( Figure 1). As a result, in the exemplary riveting device 1, the at least one reduction stage 37, in particular a gear element 37.1 of the at least one reduction stage 37 arranged on the intermediate shaft 38 and / or held non-rotatably, lies in the axial direction within the stroke of the threaded spindle 33, but in the radial direction at a sufficiently large distance that a disturbance of the stroke of the threaded spindle 33 during operation of the riveting device 1 by the gear element 37.1 is prevented (see, for example, Figure 2 The gear element 37.1 may be a spur gear.

[0062] To save radial installation space, the base body 41.1 is provided, for example, to have a radial extension towards the intermediate shaft 38 that is at least equal to or less than the radial extension of the threaded spindle 33. For example, the intermediate shaft 38 is arranged vertically below the threaded spindle 33. For example, the at least one intermediate element 42 or 42' of the torque support 41 is arranged horizontally on the base body 41.1 with respect to its central axis. For example, the bore 44 with the magnetic element 45 received therein is arranged on the side of the base body 41.1 that faces away from the intermediate shaft 38 in the vertical direction.

[0063] Figure 4Figure 1 shows the torque support 41 in a schematic perspective view, illustrated by way of example with at least one intermediate element 42 or 42' and the magnetic element 45. The torque support 41 can be designed as a hollow body with a passage 41.3 extending in the direction of its longitudinal extent. For example, the passage 41.3 of the torque support 41 is a component of the mandrel disposal path to the collection container 60.

[0064] As from the Figure 1As can be seen, the intermediate shaft 38 is radially mounted to the device housing 5 via a radial bearing 46. To save axial installation space, the radial bearing 46 can be located on the side of the reduction stage 37 facing away from the wall section 7, i.e., the reduction stage 37 is arranged between the radial bearing 46 and the wall section 7 of the device housing 5. For example, the reduction stage 37, in particular one gear element 37.1, is arranged on the intermediate shaft 38 in the region of a free end of the intermediate shaft 38 facing the wall section 7. Preferably, in addition to the radial bearing 46, a further radial bearing 46' is provided, via which the intermediate shaft 38 is radially mounted to the device housing 5.

[0065] For example, the pipe element 50 engages with one end in the passage 40 of the threaded spindle 33. For example, the pipe element 50 remains engaged in the passage 40 throughout the stroke of the threaded spindle 33. Preferably, the pipe element 50 is attached, for example, with its other end, to a wall section 7 that is fixed to the housing 5. For example, the wall section 7 extends transversely, and in particular orthogonally, to the pipe axis of the pipe element 50. Preferably, the pipe axis of the pipe element 50 is coaxial with the effective axis W and / or the spindle axis S.

[0066] Figure 5 The figure shows the pipe element 50 in the area of ​​wall section 7 in an enlarged section of the Figure 2 , whereby in the Figure 5 the cutting plane opposite the cutting plane of the Figure 2 rotated by 90 degrees. Figure 6 shows the pipe element 50 in perspective view.

[0067] A fastening structure 51 can be provided for attaching the pipe element 50 to the device housing 5 or the wall section 7. For example, the fastening structure 51 comprises two flange sections 52, 53 associated with the pipe element 50, in particular plate-shaped flange sections 52, 53. Preferably, the flange sections 52, 53 are fixedly connected to the pipe element 50, for example, integrally formed on it. For example, the flange sections 52, 53 are arranged axially offset from each other. For example, the flange sections 52, 53 each extend along a different circumferential section around the outer circumference of the pipe element 50 ( Figure 6 ).

[0068] For example, the flange sections 52, 53 each have a flange surface 52.1 and 53.1, respectively, which interacts with a mating surface 7.1 and 7.1' of the wall section 7. For example, the flange surfaces 52.1 and 53.1 are arranged transversely, in particular orthogonally, to the pipe axis of the pipe element 50. For example, the flange surfaces 52.1 and 53.1 point in opposite directions to each other. For example, the associated mating surfaces 6.1 and 6.1' are arranged on opposite sides of the wall section 7. For example, one of the mating surfaces 6.1 and 6.1' is formed on an inner side 7.2 facing the threaded spindle 33, and the other mating surface 6.1' is formed on an opposite outer side 7.3 of the wall section 7.

[0069] To save axial installation space, the fastening structure 51 can be designed such that it is at least substantially flush with the inner surface 7.2 and / or the outer surface 7.3 of the wall section 7, or is recessed relative to the inner surface 7.2 and / or the outer surface 7.3 of the wall section 7. For this purpose, for example, the flange sections 52, 53 are dimensioned accordingly in thickness, such that, for example, the outwardly facing side of at least one of the flange sections 52, 53, i.e., the side opposite the flange surface 52.1 or 53.1 of the flange section 52 or 53, is substantially flush with the inner surface 7.2 and / or the outer surface 7.3 of the wall section 7, or is recessed relative to the inner surface 7.2 and / or the outer surface 7.3 of the wall section 7.

[0070] For example, the device housing 5 is multi-part, in particular at least two-part, and has at least two housing parts 8, 8', in particular housing shells. For example, the housing parts 8, 8' lie against each other in a division plane when they are assembled. Figures 7 and 8 Figure 1 shows one of the housing parts 8, 8' in the area of ​​wall section 7 as an example. As can be seen, each housing part 8, 8' is assigned one of the mating surfaces 6.1 or 6.1'. For example, one of the mating surfaces 6.1, 6.1' is formed on one of the housing parts 8, 8'. The pipe element 50 simply needs to be inserted into a receptacle 8.1 or 8.1' of one of the housing parts 8, 8', and the pipe element 50 is simultaneously secured by joining the housing parts 8, 8'. For example, the receptacles 8.1, 8.1', when joined, form a through-hole 9 for the pipe element 50.

[0071] Figure 9Figure 1 shows an exemplary embodiment of a blind rivet setting tool 100. The blind rivet setting tool 100 has the structure of the exemplary riveting tool 1 described above, wherein in the Figure 9 For the sake of simplicity, only a section of the exemplary riveting device 1 in the area of ​​the riveting tool 10 is shown. In the blind rivet setting device 100, a rivet mandrel 120 of a blind rivet 110 is inserted into the nozzle 11 and received in the mandrel receptacle 12, in particular the chuck housing 13, and fixed in the axial direction, for example, by the at least one clamping element 14 or 14'. Figure 9 shows the blind rivet 110 in the state before riveting, in which the rivet body 130 of the blind rivet 110 is still in its initial state.

[0072] Figure 10Figure 1 shows an exemplary embodiment of a blind rivet nut setting tool 200. The blind rivet nut setting tool 200 has the structure of the exemplary riveting tool 1 described above, wherein the mandrel holder 12 and the pressing element 16 are modified with regard to a rivet mandrel for a blind rivet nut, and the rivet mandrel is a threaded rivet mandrel. For example, the pressing element 16 has a function with regard to screwing the threaded rivet mandrel into the blind rivet nut. In the Figure 10 For simplicity, only a section of the riveting device 1 in the area of ​​the riveting tool 10 is shown. In the blind rivet nut setting device 200, a threaded rivet mandrel 220 for a blind rivet nut 210 is held in the mandrel receptacle 12. Figure 10 shows the blind rivet nut 210 in the state before riveting, in which the rivet body 230 of the blind rivet nut 210 is still in its initial state.

[0073] For example, in the exemplary blind rivet nut setting tool 200, the pressing element 16 is inserted into a receptacle of the threaded rivet mandrel 220 and forms a positive-locking, rotationally fixed connection with the threaded rivet mandrel 220 via the receptacle. For example, the force of the spring element 15 of the riveting tool 1 ( Figure 1 ), which acts axially on the pressure part 16, holding the pressure part 16 in the receptacle of the threaded rivet mandrel 220.

[0074] Figure 11 Figure 3 shows an exemplary embodiment of a blind rivet screw setting tool 300. The blind rivet screw setting tool 300 has the structure of the exemplary riveting tool 1 described above, wherein the mandrel receptacle 12 is modified with regard to a rivet mandrel of a blind rivet screw and the rivet mandrel is a threaded rivet mandrel. In the Figure 11For simplicity, only a section of the riveting device 1 in the area of ​​the riveting tool 10 is shown. In the blind rivet screw setting device 300, a threaded rivet mandrel 320 of a blind rivet screw 310 is held in the mandrel receptacle 12. Figure 11 shows the blind rivet screw 310 in the state before riveting, in which the rivet body 330 of the blind rivet screw 310 is still in its initial state. Reference symbol list

[0075] 1 Riveting tool 2 Handle part 2.1 Grip surface 3 Accumulator 4 Tool housing 5 Device housing 6 Mounting structure 7 Wall section 7.1, 7.1' Counter surface 7.2 Inside 7.3 Outside 8, 8' Housing part 8.1, 8.1' Mounting 9 Through hole 10 Riveting tool 11 Nozzle 11.1 Through hole 12 Mandrel 13 Chuck housing 14, 14' Clamping element 15 Spring element 16 Press part 16.1 Through hole 30 Drive unit 31 Electric motor 31.1 Output shaft 32 Spindle gearbox 33 Threaded spindle 33.1 Front end 33.2 Rear end 33.3 Motion thread 34 Spindle nut 35, 35' Radial bearing 36 Thrust bearing 37, 37' Reduction stage 37.1 Gear element 38 Intermediate shaft 39 Support ring 40 Through hole 40.1 Mounting thread 41 Torque support 41.1 Base body 41.2 Extension 41.3 Through hole 42, 42' Intermediate element 43 Abutment 43.1 Through hole 43.2, 43.2)' Guide track 44 Bore 45 Magnet element 46, 46' Radial bearing 50 Pipe element 51 Fastening structure 52 Flange section 52.1 Flange surface 53 Flange section 53.1 Flange surface 60 Collection container 100 Blind rivet setting tool 110 Blind rivet 120 Rivet mandrel 130 Rivet body 200 Blind rivet nut setting tool 210 Blind rivet nut 220 Threaded rivet mandrel 230 Rivet body 300 Blind rivet screw setting tool 310 Blind rivet screw 320 Threaded rivet mandrel 330 Rivet body WWir axis SSpin axis AShaft axis DDistance

Claims

1. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a nozzle (11) and a mandrel holder (12) movable relative to the nozzle (11) along an effective axis (W), a drive device (30) in the device housing (5) for actuating the riveting tool (10) with a threaded spindle (33) having a drive thread (33.3), which is operatively connected to the mandrel holder (12) and is configured to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) extending in the direction of its longitudinal extent, in particular to provide a mandrel disposal path, a pipe element (50) and a collection container (60), wherein a mandrel channel is formed via the pipe element (50) from the passage (40) to the collection container (60), characterized by the fact that the pipe element (50) engages in the passage (40) of the threaded spindle (33).

2. Riveting device according to claim 1, wherein the tube element (50) engages telescopically in the passage (40).

3. Riveting device according to claim 1 or 2, wherein the pipe element (50) engages telescopically in the passage (40), so that during a lifting movement of the threaded spindle (33) the pipe element (50) comes more or less out of the passage (40).

4. Riveting device according to one of the preceding claims, the riveting device (1) comprising a torque support (41) which is associated with the threaded spindle (33) and secures the threaded spindle (33) against rotation relative to the device housing (5) and is attached to the threaded spindle (33) via the passage (40), wherein the torque support (41) is designed as a hollow body with a passage (41.3) extending in the direction of its longitudinal extent, which is a component of the mandrel disposal path to the collection container (60), and wherein the pipe element (50) engages in the passage (41.3) of the torque support (41).

5. Riveting device according to one of the preceding claims, wherein the pipe element (50) is attached to a wall section (7) of the device housing (5) extending transversely to the pipe axis of the pipe element (50) and the wall section (7) has an inner side (7.2) facing the threaded spindle (33) and an opposite outer side (7.3).

6. Riveting device according to claim 5, wherein the pipe element (50) has a fastening structure (51) which is substantially flush with the inside (7.2) and / or the outside (7.3) of the wall section (7).

7. Riveting device according to claim 5, wherein the pipe element (50) has a fastening structure (51) which is lower than the inside (7.2) and / or the outside (7.3) of the wall section (7).

8. Riveting device according to one of claims 5 to 7, wherein the pipe element (50) has a fastening structure (51) with two flange sections (52, 53) which each extend along a different circumferential section around the outer circumference of the pipe element (50) and have a flange surface (52.1, 53.1) which interacts with a counter surface (7.1; 7.1') of the wall section (7), wherein the flange surfaces (52.1, 53.1) point in opposite directions to each other and one of the counter surfaces (7.1, 7.1') is formed on the inside (7.2) and the other counter surface (7.1') on the outside (7.3) of the wall section (7).

9. Riveting device according to claim 8, wherein the device housing (5) is multi-part and has at least two housing parts (8, 8') lying atop one another in a division plane, each of which is assigned one of the opposing surfaces (7.1, 7.1') of the wall section (7).

10. Riveting device according to one of the preceding claims, wherein the riveting device (1) is a hand riveting device and has a handle part (2) which is formed on the device housing (5).

11. Blind rivet setting device (100), comprising a riveting device (1) according to one of claims 1 to 10 with a rivet mandrel (120) of a blind rivet (110) to be set, which is received in the mandrel receptacle (12) of the riveting device (1).

12. Blind rivet nut setting device (200), comprising a riveting device (1) according to one of claims 1 to 10 with a threaded rivet mandrel (220) received in the mandrel receptacle (12) of the riveting device (1) for a blind rivet nut (210) to be set.

13. Blind rivet screw setting device (300), comprising a riveting device (1) according to one of claims 1 to 10 with a threaded rivet mandrel (320) of a blind rivet screw (310) to be set, which is received in the mandrel receptacle (12) of the riveting device (1).

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