Riveting device having a compact design

Abstract

The present invention relates to a riveting device (1) comprising a device housing (5), a riveting tool (10) and a drive apparatus (30) in the device housing (5) for actuating the riveting tool (10). The riveting tool (10) has a mouthpiece (11) and a mandrel receptacle (12) which is movable in relation to the mouthpiece (11) along an effective axis (W). The drive apparatus (30) comprises a leadscrew (33) which has a power-transmission thread (33.3), is operatively connected to the mandrel receptacle (12), and is designed to be moved along the effective axis (W). The leadscrew (33) is in the form of a hollow spindle having a passage (40) extending in the direction of its longitudinal extent, and a torque bracket (41) is associated with the leadscrew (33) and secures the leadscrew (33) against rotation in relation to the device housing (5). In order to improve the compactness, the torque bracket (41) is fastened to the leadscrew (33) via the passage (40).

Description

[0001] Riveting tool in compact design

[0002] The present disclosure relates to a riveting tool and, more particularly, to a blind rivet setting tool, a blind rivet nut setting tool and a blind rivet screw setting tool.

[0003] Riveting tools are typically used to create a riveted joint between two or more materials, such as sheet metal, at a junction where the materials lie against one another. To create the riveted joint, a plastically deformable, usually cylindrical connecting element, generally referred to as a rivet, is used. The rivet usually has a prefabricated setting head at one end. To create the riveted joint, the rivet is inserted into a connecting hole provided at the joint up to the setting head and then the other end of the rivet is plastically deformed into a closing head.

[0004] Riveting tools can also be used to add threads to thin-walled components. Rivet nuts or rivet bolts are used for this purpose, combining a rivet with a threaded element. The rivet nuts or rivet bolts are inserted into a prefabricated rivet hole in the component, and then a portion of the rivet is plastically formed into a closing head.

[0005] Conventional riveting tools usually comprise a riveting tool which is designed to effect a plastic deformation which forms the closing head. To actuate the riveting tool, the riveting tools have a drive device accommodated in a device housing. The drive device is often electromechanical and comprises, for example, an electric motor and a spindle gear designed as 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 twisting by torque arms so that when the spindle nut rotates, the threaded spindle moves axially and in doing so acts on the riveting tool.

[0006] Such a riveting tool is described in EP 0 527 414 A1. The riveting tool is designed for blind riveting and is configured to pull a rivet mandrel out of the rivet body of a blind rivet by exerting a pulling movement, compressing the rivet body and creating a closing head, until the rivet mandrel breaks off. The broken-off piece of the rivet mandrel can be disposed of in a collecting container via a through-hole in the threaded spindle and an adjoining tubular element.

[0007] In this riveting tool, the torque supports are attached to the outer circumference of the threaded spindle, specifically at the rear end of the threaded spindle facing the collecting container. The torque supports occupy a radial space in the area of ​​the rear end of the threaded spindle, which, in the vertical direction of the riveting tool toward the electric motor, is larger than the diameter of the threaded spindle in the area of ​​its movement thread.

[0008] Furthermore, with this riveting tool, the tubular element is axially fixed to the tool housing. For this purpose, an intermediate sleeve is axially fixedly inserted into a through-hole in the tool housing. The tubular element is attached to the center of the sleeve on one side and a holder for the collecting container is screwed to the other. To perform this fastening function, a length of the intermediate sleeve protrudes from the inside of the tool housing, thus taking up axial space within the tool housing.

[0009] In the course of ongoing development, there may be a need to improve the compactness of a riveting tool. This is based on the expectation that improved compactness will make it easier to reach hard-to-reach riveting locations and place a rivet there. Furthermore, it is expected that improved compactness will make the riveting tool lighter and / or easier to handle.

[0010] One embodiment of a basic riveting tool comprises a tool housing, a riveting tool and a drive device, preferably in the tool housing, for actuating the riveting tool. For example, the riveting tool, in particular the riveting tool, is suitable for blind riveting, in which the riveting process is carried out by means of a rivet mandrel from one side of the material to be provided with a blind rivet. Instead of a blind rivet, a blind rivet nut or a blind rivet screw can also be used. The riveting tool preferably has a mouthpiece and a mandrel holder which is movable relative to the mouthpiece along or in the direction of an effective axis. For example, the mandrel holder comprises a chuck housing which is movable relative to the mouthpiece along or in the direction of the effective axis and at least one clamping element, in particular a clamping jaw, which is movable in the chuck housing along a clamping path.

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

[0012] An improved compactness is achieved by a riveting tool design in which the torque support is attached to the threaded spindle via the passage. The passage of the threaded spindle is thus used to attach the torque support. This attachment requires less radial space than, for example, an attachment to the outer circumference of the threaded spindle.

[0013] The improved riveting tool can be designed so that the torque arm is attached to the threaded spindle by screwing it into the passage. This allows for an easy, stable attachment of the torque arm to the threaded spindle.

[0014] Further progress is achieved, additionally or alternatively, in an embodiment in which the torque arm is fastened to the threaded spindle by screwing via a fastening thread, wherein the fastening thread and the movement thread of the threaded spindle run in opposite directions to one another. This prevents the screw connection between the torque arm and the threaded spindle from becoming loose when the riveting tool is operated or when the drive device is in operation. Rather, this promotes automatic tightening of the torque arm when the threaded spindle is pulled or moved. This is easy to install and saves costs.

[0015] For example, the fastening thread is formed in the passage of the threaded spindle. For example, the fastening thread is an internal thread. For example, the torque support is screwed into the passage, engaging the fastening thread.

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

[0017] The improved riveting tool can further be designed such that the base body has a bore which runs transversely, in particular orthogonally to the spindle axis of the threaded spindle and in which a magnetically acting magnetic element for a Hall sensor device, such as a permanent magnet, is accommodated. The base body therefore has a multiple function. This results in improved functional integration. Simple 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 arranged close to the intermediate element. This allows the magnetic element to be held in the bore due to 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 extension with respect to the spindle axis in at least one spatial direction, which is less than or equal to the radial extension of the threaded spindle in the region of the base body. Such radial compactness of the base body is made possible due to the fastening of the torque arm via the passage of the threaded spindle. In one embodiment, the threaded spindle engages with a spindle nut of a spindle gear and in particular the drive device has an electric motor and a reduction stage interposed between the electric motor and the spindle gear, 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 in the axial direction between the spindle nut and a wall section of the device housing.

[0019] In this embodiment, the improved riveting tool can be designed such that, starting from the shaft axis of the intermediate shaft, the reduction stage has a radial extension which is smaller than the distance between the shaft axis of the intermediate shaft and the facing outer side of the base body and / or the facing outer side of the threaded spindle. This promotes a reduction in axial installation space, since a sequential axial arrangement of the space to be kept free for the actually used stroke of the threaded spindle on the one hand and the reduction stage on the other hand can be avoided. In this respect, this measure also goes in the direction of improving the compactness of the riveting tool.

[0020] Further progress is additionally or alternatively achieved by an embodiment in which the intermediate shaft is mounted radially in relation to the device housing via a radial bearing in a manner fixed to the housing, and the radial bearing is located on the side of the reduction stage facing away from the wall section of the device housing. This makes it possible to avoid a radial bearing on the side of the reduction stage facing the wall section and to shorten the intermediate shaft, thus saving axial installation space. A shortened intermediate shaft also results in a weight advantage. The measure in particular that a gear element of the reduction stage is arranged on the intermediate shaft in the region of a free end of the intermediate shaft facing the wall section or is arranged on an end of the intermediate shaft facing the wall section is also aimed in this direction.

[0021] In a further embodiment, the riveting tool comprises a spring element that exerts a force into the mandrel receptacle. For example, the spring element is configured to apply a force to the at least one clamping element into the chuck housing. In particular, the spring element is arranged in the passage of the threaded spindle.

[0022] In this embodiment, the improved riveting tool can be designed such that a section or extension of the torque arm located in the passage serves as a counter-holder for the spring element. The torque arm is thus used as a component of the anti-twist device for the threaded spindle and also performs a counter-holding function for the spring element. This multiple function of the torque arm achieves improved functional integrity.

[0023] In a further embodiment, the riveting tool comprises a tubular element and a collecting container, for example for mandrel residues or torn-off rivet mandrel pieces. In particular, a connecting channel, in particular a mandrel channel, is formed via the tubular element from the passage of the threaded spindle to the collecting container. In particular, the tubular element is fastened to a wall section of the tool housing, for example the wall section described above. In particular, the wall section runs transversely, for example orthogonally to the tube axis of the tubular element. In particular, the wall section has an inner side facing the threaded spindle and an opposite outer side.

[0024] Further progress in compactness is achieved, additionally or alternatively, by an embodiment in which the tubular element has a fastening structure that is substantially flush with the inside and / or outside of the wall section or is lower than the inside and / or outside of the wall section. This makes it possible to save additional installation space in the axial direction relative to the effective axis or the spindle axis that would be required for the fastening structure.

[0025] Further progress in compactness is additionally or alternatively achieved by an embodiment in which the tubular element has a fastening structure with two flange sections, which each run along a different circumferential section around the outer circumference of the tubular element and have a flange surface which interacts with a mating surface of the wall section, wherein the flange surfaces point in opposite directions to one another and / or face one another axially and one of the mating surfaces is formed on the inside and the other mating surface is formed on the outside of the wall section. This enables a compact design of the fastening of the tubular element to the device housing in the axial direction with respect to the effective axis or the spindle axis. Installation of the tubular element on the device housing is also made easier because no further fastening elements are required.The two flange surfaces of the pipe element alone enable the pipe element to be secured axially relative to the device housing by means of a positive fit.

[0026] The further improved riveting tool can be designed such that the tool housing is made up of several parts and has at least two housing parts that are adjacent to one another in a dividing plane, each of which is assigned one of the mating surfaces of the wall section. This facilitates simple assembly of the tubular element to the tool housing. The tubular element can be secured simply by joining the housing parts.

[0027] Further progress in compactness is additionally or alternatively achieved by an embodiment in which the tubular element engages in the passage of the threaded spindle, in particular engages directly and / or immediately. As a result, the installation space to be provided in the axial direction with regard to the effective axis or the spindle axis essentially needs to be designed for the stroke that can be executed by the threaded spindle. In particular, the tubular element engages in the passage of the threaded spindle in a telescopic manner. In the present disclosure, this means that during a lifting movement of the threaded spindle, the tubular element comes out of the passage more or less, but preferably the engagement in the passage is retained.

[0028] In a further embodiment, the riveting tool is designed as a hand-held riveting tool and comprises a handle part which, for example, has a longitudinal extension transverse to the effective axis. For example, the handle part is formed on the tool housing, in particular is integrally formed thereon. The handle part enables the riveting tool to be held in the hand or guided manually. In particular, the handle part enables the riveting tool to be placed manually on a location to be riveted. According to 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 of a blind rivet to be set, which mandrel is received in its mandrel holder.

[0029] According to a further aspect, a blind rivet nut setting tool is proposed. The blind rivet nut setting tool comprises the riveting tool described above and has a threaded rivet mandrel accommodated in its mandrel holder for a blind rivet nut to be set.

[0030] According to a further aspect, a blind rivet screw setting tool is proposed. The blind rivet screw setting tool comprises the riveting tool described above and has a threaded rivet mandrel for a blind rivet screw to be set, which is accommodated in its mandrel holder.

[0031] Further details and features will become apparent from the following description of several embodiments based on the drawings.

[0032] Fig. 1 shows an exemplary embodiment of a riveting device with a riveting tool and a drive device for actuating the riveting tool in a schematic sectional position,

[0033] Fig. 2 shows the exemplary riveting device in an enlarged section of Figure 1 in the area of ​​the drive device and a torque support,

[0034] 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 Figure 2,

[0035] Fig. 4 shows the torque support of the exemplary riveting device of Figure 1 in a schematic representation as a perspective view,

[0036] Fig. 5 shows the exemplary riveting device in an enlarged section of Figure 1 in the area of ​​a tubular element for mandrel removal, Fig. 6 shows the tubular element of the exemplary riveting device of Figure 1 in an enlarged area of ​​a fastening structure as a perspective view,

[0037] Fig. 7 and 8 each show a housing part of a device housing for the exemplary riveting device of Figure 1 in an enlarged area of ​​a receptacle for the tubular element of Figure 6,

[0038] Fig. 9 shows a possible embodiment of a blind rivet setting tool with the exemplary riveting tool of Figure 1 in a schematic partial representation,

[0039] Fig. 10 shows a possible embodiment of a blind rivet nut setting tool with the exemplary riveting tool of Figure 1 in a schematic partial representation, and

[0040] Fig. 11 shows a possible embodiment of a blind rivet screw setting tool with the exemplary riveting tool of Figure 1 in a schematic partial representation.

[0041] Figure 1 shows the structure of an exemplary embodiment of a riveting tool 1, which is also referred to in specialist circles as a setting tool. The exemplary riveting tool 1 is suitable for attaching rivets using the blind riveting method and is therefore designed for use with blind rivets.

[0042] 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 accommodated in a tool housing 4. The drive device 30 is preferably accommodated in a device housing 5. The tool housing 4 is preferably a metal housing. The device housing 5 is preferably a plastic housing.

[0043] 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 can 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 enables 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 as such then takes place by actuating the riveting tool 10 via the drive device 30.

[0044] The drive device 30 is preferably an electromechanical drive device. The electromechanical drive device 30 comprises, for example, an electric motor 31 with a rotatable output shaft 31.1 and preferably a spindle gear 32 which can be driven by the electric motor 31. The spindle gear 32 is preferably designed to convert a rotary drive movement emanating from the output shaft 31.1 into a translatory drive movement acting along an effective axis W for actuating the riveting tool 10. The spindle gear 32 can be a ball screw drive.

[0045] To supply electrical energy to the drive device 30, a preferably replaceable electrical energy storage device, such as a rechargeable battery 3, can be provided, which is arranged, for example, in the region of an end of the handle part 2 facing away from the riveting tool 10. In this respect, the riveting tool 1 can be a battery-powered device.

[0046] The riveting tool 10 can comprise a mouthpiece 11 and a mandrel holder 12 movable relative to the mouthpiece 11 in the direction of an effective axis W. For example, the mandrel holder 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 mouthpiece 11 and / or the mandrel holder 12 and / or the chuck housing 13 and / or the clamping elements 14, 14' are a metal part.

[0047] The mouthpiece 11 serves, for example, to receive a rivet (not shown in Figure 1) to be set, in particular a blind rivet, and preferably has a through-hole 11.1 for inserting the rivet mandrel of the rivet therein. The mandrel receptacle 12 serves, for example, to fix the rivet mandrel so that a displacement-proof connection is created between the received rivet mandrel and the mandrel receptacle 12. This can be done, for example, via the chuck housing 13 with the clamping elements 14, 14' arranged movably therein, by means of which the rivet mandrel is fixed, in particular clamped, in the chuck housing 13. For example, a spring element 15 is provided which acts with a force, for example via a pressing part 16, in the mandrel receptacle 12. The force of the spring element 15 can be used as a pre-tensioning force, by means of which the fixing of the rivet mandrel in the mandrel receptacle 12 is effected or at least supported.For example, the spring element 15 is provided to apply a spring force to the clamping elements 14, 14' into the chuck housing 13. As a result, the clamping elements 14, 14' are pressed into the clamping position against a rivet mandrel, for example a blind rivet, inserted into the chuck housing 13 via the through-hole 11. 1 of the mouthpiece 11. For example, the spring element 15 is a compression spring.

[0048] The drive device 30 can actuate the riveting tool 10 in such a way that the mandrel holder 12 or the chuck housing 13 with the rivet mandrel fixed therein is moved away from the mouthpiece 11 in the direction of the effective axis W. This occurs, for example, in that the drive device 30 pulls the mandrel holder 12 or the chuck housing 13 away from the mouthpiece 11. This known mode of operation and the blind riveting that can be carried out with it are described in more detail in the document 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 document may assign a meaning to identical terms which differs from the present meaning.

[0049] Preferably, the mouthpiece 11 is fastened to the tool housing 4, for example, screwed thereto. Preferably, the mandrel receptacle 12, in particular the chuck housing 13, is accommodated in the tool housing 4 so as to be movable in the direction of the effective axis W. For example, the tool housing 4 is tubular. For example, the mouthpiece 11 is fastened to one end of the tool housing 4, and the opposite end faces the device housing 5.

[0050] The spindle gear 32 is preferably arranged in the device housing 5. The spindle gear 32 preferably comprises a threaded spindle 33 with a movement thread 33.3 and a spindle nut 34 which engages or can be brought into engagement therewith. The threaded spindle 33 preferably has a front end 33.1 facing the mandrel holder 12, in particular the chuck housing 13, and an opposite rear end 33.2. The threaded spindle 33 and the spindle nut 34 are preferably arranged concentrically to one another with respect to a gear axis. The spindle axis S of the threaded spindle 33 preferably lies on the gear axis. The output shaft 31.1 of the electric motor 31 is preferably arranged axially parallel to the gear axis. The gear axis or the spindle axis S preferably lies on the effective axis W.

[0051] 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 drivable by the electric motor 31, and the threaded spindle 33 is used to carry out the translational drive movement in order to actuate the riveting tool 10. For example, for this purpose the threaded spindle 33 is connected at its front end 33.1 directly or indirectly, for example via an intermediate piece, to the mandrel holder 12 or the chuck housing 13 in a displacement-proof manner. For example, the spindle nut 34 is furthermore 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'.

[0052] For example, the radial bearings 35, 35' are arranged at an axial distance from one another. 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 a rolling bearing, in particular a deep groove ball bearing.

[0053] For example, the spindle nut 34 is mounted axially relative to the gear axis or the effective axis W via an axial bearing 36 in a support ring 39 serving as a bearing housing, wherein the support ring 39 is supported in the axial direction on the mouthpiece 11 via the tool housing 4. The tool housing 4 itself is held, in particular loosely held, on the support ring 39, for example, via a holding structure 6, such as an annular cover element.

[0054] The support ring 39 is preferably designed to be deformation-resistant or pressure-resistant. 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 roller bearing. In principle, the axial bearing 36 can also be a needle bearing.

[0055] 1, at least one, preferably two reduction stages 37, 37' can be interposed between the electric motor 31 and the spindle gear 32. For example, the reduction stages 37, 37' are connected one after the other 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 gears. 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.

[0056] With regard to the bearing of the spindle gear 32, in particular the spindle nut 34, the bearing of the reduction stages 37, 37', in particular the common intermediate shaft 38, and the bearing of the electric motor 31, for the purpose of completing and supplementing the present disclosure, reference is made to the German patent application with the official file number DE 10 2022 116 406.3 with the note that the patent application may assign a meaning to identical terms which differs from the present meaning.

[0057] Preferably, the threaded spindle 33 is designed as a hollow spindle with a passage 40 extending in the direction of its longitudinal extent. The passage 40 makes it possible to remove a remainder of a rivet mandrel remaining from a riveting process from the riveting tool 10. For example, in this case, the pressing part 16 arranged 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.

[0058] For example, the passage 40 opens at the rear end 33.2 of the threaded spindle 33 into a tubular element 50, which in turn opens into a collecting container 4. For example, a mandrel disposal path is realized in this way via the threaded spindle 33, wherein the collecting container 4 serves as a collector for mandrel residues. Preferably, the collecting container 4 is arranged fixedly with respect to the device housing 5, in particular detachably arranged, for example fastened to the device housing 5, in particular detachably fastened.

[0059] Figure 2 shows the exemplary riveting device 1 in the area of ​​the spindle gear 32 and the tubular element 50 in an enlarged section of Figure 1. Figure 3 shows the exemplary riveting device 1 in a sectional view along the section line AA of Figure 2. As can be seen in particular therefrom, 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.

[0060] In the exemplary riveting tool 1, the torque support 41 is attached or non-rotatably connected to the threaded spindle 33 via the passage 40. This saves installation space in the radial direction relative to the spindle axis S, since an area radially close to the center of the threaded spindle 33 is used to attach the torque support 41.

[0061] Preferably, the torque support 41 is attached to the threaded spindle 33 by screwing it into the passage 40. For example, the threaded spindle 33 has a fastening thread 40.1, in particular an internal thread, in the passage 40 in the region of its rear end 33.2, into which the torque support 41 is screwed. For example, the pitch of the fastening thread 40.1 is designed to be opposite to the pitch of the movement thread 33.3 of the threaded spindle 33. This enables the torque support 41 to be automatically tightened upon an actuating or pulling movement of the threaded spindle 33.

[0062] 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 introduced into the passage 40, which, for example, is an extension 41.2 of the base body

[0063] 41.1. For example, the extension 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 extension

[0064] 41.2 is used as a counterholder for the spring element 15 (Figure 2).

[0065] Preferably, the base body 41.1 forms an anti-rotation device for the threaded spindle 33 (Figure 3) against an abutment 43, for example via at least one intermediate element 42 or 42'. For example, the abutment 43 is arranged so as to be secured against rotation relative to the device housing 5. For example, the abutment 43 is arranged in the device housing 5. For example, the abutment 43 is designed as a hollow body, in particular a cage-like hollow body, with a passage 43.1 running in the axial direction. For example, the base body 41.1 of the torque support 41 is received in the passage 43.1 of the abutment 43.

[0066] For example, the passage 43.1 of the abutment 43 has a non-circular, in particular polygonal, for example, rectangular cross-section. For example, the base body 41.1 of the torque support 41 has a non-circular, in particular polygonal, for example, rectangular cross-section. Preferably, the cross-section of the passage 43.1 and the cross-section of the base body

[0067] 41.1 are configured to correspond to one another. 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.

[0068] Preferably, the abutment 43 has at least one guideway

[0069] 43.2 or 43.2', on which the torque support 41 is guided while maintaining the anti-twist protection when the threaded spindle 33 executes 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 delimiting 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 body or a rolling body, such as a needle bearing or a plain bearing. The intermediate element 42 or 42' can be a cylindrical pin, for example.

[0070] For example, the base body has a bore 44 or another hole in which a magnetically acting magnetic element 45 for a sensor device using a magnetic field, such as a Hall sensor device, is received. For example, the bore 44 or the 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 the hole by magnetic force. For this purpose, the intermediate element 42 or 42' comprises or consists of a corresponding metallic material, such as iron.

[0071] In the exemplary riveting tool 1, the at least one reduction stage 37 is arranged in the axial direction between the spindle nut 34 and a wall section 7 of the tool housing 5. In this case, starting from the shaft axis A of the intermediate shaft 38, the reduction stage 37 preferably has a radial extent which is smaller than the distance D between the shaft axis A of the intermediate shaft 38 and the facing outer side of the base body 41. 1 and / or the threaded spindle 33 (Figure 1). As a result, in the exemplary riveting tool 1, the at least one reduction stage 37, in particular a gear element 37 arranged on the intermediate shaft 38 and / or held in a rotationally fixed manner. 1 of the at least one reduction stage 37, in the axial direction in the stroke path 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.

[0072] In order to save radial installation space, it is provided, for example, that the base body 41.1 has a radial extension in the direction of the intermediate shaft 38 which is at least equal to or smaller 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 arm 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 accommodated therein is arranged on the side of the base body 41.1 which faces away from the intermediate shaft 38 in the vertical direction.

[0073] Figure 4 shows the torque support 41 in a schematic perspective view, illustrated by way of example with the 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 running 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 collecting container 60.

[0074] 1, the intermediate shaft 38 is mounted radially in relation to the device housing 5 via a radial bearing 46. In order to save axial installation space, it can be provided that the radial bearing 46 is 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 the 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, by means of which the intermediate shaft 38 is mounted radially in relation to the device housing 5 so as to be fixed to the housing.

[0075] For example, the tubular element 50 engages with one end in the passage 40 of the threaded spindle 33. For example, the tubular element 50 remains engaged in the passage 40 over the stroke of the threaded spindle 33. Preferably, the tubular element 50 is fastened, for example with its other end, to a wall section arranged fixedly with respect to the device housing 5 or to the wall section 7. For example, the wall section 7 runs transversely, in particular orthogonally to the tubular axis of the tubular element 50. The tubular axis of the tubular element 50 is preferably coaxial with the effective axis W and / or the spindle axis S.

[0076] Figure 5 shows the tubular element 50 in the region of the wall section 7 in an enlarged detail of Figure 2, wherein in Figure 5 the sectional plane is rotated by 90 degrees relative to the sectional plane of Figure 2. Figure 6 shows the tubular element 50 in a perspective view.

[0077] A fastening structure 51 can be provided for fastening the tubular element 50 to the device housing 5 or the wall section 7. For example, the fastening structure 51 comprises two flange sections 52, 53 assigned to the tubular element 50, in particular plate-shaped flange sections 52, 53. The flange sections 52, 53 are preferably firmly connected to the tubular element 50, for example, molded thereon. For example, the flange sections 52, 53 are arranged axially offset from one another. For example, the flange sections 52, 53 each run along a different circumferential section around the outer circumference of the tubular element 50 (Figure 6).

[0078] For example, the flange sections 52, 53 each have a flange surface 52.1 or 53.1, which interacts with a mating surface 7.1 or 7.1' of the wall section 7. For example, the flange surfaces 52.1, 53.1 are arranged transversely, in particular orthogonally, to the tube axis of the tube element 50. For example, the flange surfaces 52.1 53.1 point in opposite directions to one another. For example, the associated mating surfaces 6.1, 6.1' are arranged on different sides of the wall section 7. For example, one of the mating surfaces 6.1, 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.

[0079] In order to save axial installation space, the fastening structure 51 can be designed such that it is at least substantially flush with the inner side 7.2 and / or the outer side 7.3 of the wall section 7 or is lower than the inner side 7.2 and / or the outer side 7.3 of the wall section 7. For this purpose, it is provided, for example, that the thickness of the flange sections 52, 53 is dimensioned accordingly, so that, for example, the outward-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 side 7.2 and / or the outer side 7.3 of the wall section 7 or is lower than the inner side 7.2 and / or the outer side 7.3 of the wall section 7.

[0080] For example, the device housing 5 is constructed in several parts, in particular at least in two parts, and has at least two housing parts 8, 8', in particular housing shells. For example, the housing parts 8, 8' lie against one another in a parting plane when assembled. Figures 7 and 8 each show, by way of example, one of the housing parts 8, 8' in the region of the wall section 7. As can be seen therefrom, for example, one of the counter surfaces 6.1 or 6.1' is assigned to each of the housing parts 8, 8'. For example, one of the counter surfaces 6.1, 6.1' is formed on one of the housing parts 8, 8'. The tubular element 50 merely needs to be inserted into a receptacle 8.1 or 8.1' of one of the housing parts 8, 8', and by joining the housing parts 8, 8' together, the fastening of the tubular element 50 is simultaneously realized. For example, the receptacles 8.1, 8.1' form a through hole 9 for the tubular element 50 when joined together.

[0081] Figure 9 shows an example of a possible 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, for the sake of simplicity, only a section of the exemplary riveting tool 1 in the region of the riveting tool 10 is shown in Figure 9. In the blind rivet setting tool 100, a rivet mandrel 120 of a blind rivet 110 is inserted into the mouthpiece 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.

[0082] Figure 10 shows an example of a possible 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 part 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 part 16 there has a function with regard to spindles of the threaded rivet mandrel into the blind rivet nut. For the sake of simplicity, Figure 10 only shows a section of the riveting tool 1 in the area of ​​the riveting tool 10. In the blind rivet nut setting tool 200, a threaded rivet mandrel 220 for a blind rivet nut 210 is received in the mandrel holder 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.

[0083] For example, in the exemplary blind rivet nut setting tool 200, the pressing part 16 is inserted into a receptacle of the threaded rivet mandrel 220 and forms a positive, 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 pressing part 16, holds the pressing part 16 in the receptacle of the threaded rivet mandrel 220.

[0084] Figure 11 shows an example of a possible 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 holder 12 is modified with regard to a rivet mandrel of a blind rivet screw and the rivet mandrel is a threaded rivet mandrel. For the sake of simplicity, Figure 11 only shows a section of the riveting tool 1 in the area of ​​the riveting tool 10. In the blind rivet screw setting tool 300, a threaded rivet mandrel 320 of a blind rivet screw 310 is received in the mandrel holder 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.

[0085] List of reference symbols

[0086] 1 riveting tool

[0087] 2 handle part

[0088] 2.1 Grip surface

[0089] 3 accumulator

[0090] 4 tool housings

[0091] 5 device housing

[0092] 6 Support structure

[0093] 7 Wall section

[0094] 7.1, 7.1' Counter surface

[0095] 7.2 Inside

[0096] 7.3 Outside

[0097] 8, 8 ' housing part

[0098] 8.1, 8.1' recording

[0099] 9 through hole

[0100] 10 riveting tools

[0101] 11 Mouthpiece

[0102] 11.1 Through hole

[0103] 12 mandrel holder

[0104] 13 Feed housing

[0105] 14, 14 ' clamping element

[0106] 15 Fe de re lerne nt

[0107] 16 Press part

[0108] 16.1 Passage

[0109] 30 Drive device

[0110] 31 electric motor

[0111] 31.1 Output shaft

[0112] 32 spindle gear

[0113] 33 threaded spindle

[0114] 33.1 front end

[0115] 33.2 rear end

[0116] 33.3 Movement thread

[0117] 34 spindle nut

[0118] 35, 35 ' radial bearing

[0119] 36 thrust bearings

[0120] 37, 37 ' reduction gear

[0121] 37.1 Gear element

[0122] 38 Intermediate shaft

[0123] 39 Support ring 40 Passage

[0124] 40.1 Fastening thread

[0125] 41 Torque support

[0126] 41.1 Base body

[0127] 41.2 Extension

[0128] 41.3 Passage

[0129] 42, 42 ' intermediate element

[0130] 43 abutments

[0131] 43.1 Passage

[0132] 43.2, 43.2 ' Guideway

[0133] 44 bore

[0134] 45 Magnetic element

[0135] 46, 46' radial bearing

[0136] 50 pipe elements

[0137] 51 Mounting structure

[0138] 52 flange section

[0139] 52.1 Flange surface

[0140] 53 Flange section

[0141] 53.1 Flange surface

[0142] 60 collecting containers

[0143] 100 blind rivet setting tool

[0144] 110 blind rivet

[0145] 120 rivet mandrel

[0146] 130 rivet bodies

[0147] 200 blind rivet nut setting tool

[0148] 210 blind rivet nut

[0149] 220 threaded rivet mandrel

[0150] 230 rivet bodies

[0151] 300 blind rivet screw setting tool

[0152] 310 blind rivet screw

[0153] 320 threaded rivet mandrel

[0154] 330 rivet bodies

[0155] W effective axis

[0156] S spindle axis

[0157] A shaft axis

[0158] D Distance

Claims

Patent claims 1. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) which is movable relative to the mouthpiece (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) which has a movement thread (33.3), which is operatively connected to the mandrel holder (12) and is designed to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent and the threaded spindle (33) is assigned a torque support (41) which secures the threaded spindle (33) against rotation relative to the device housing (5), characterized in that the torque support (41) is connected via the passage (40) to the threaded spindle (33).

2. Riveting tool according to claim 1, wherein the torque support (41) is attached to the threaded spindle (33) by screwing it into the passage (40).

3. Riveting tool according to claim 2, wherein the threaded spindle (33) in the passage (40) has a fastening thread (40.1) which runs counter to its movement thread (33.3) and the torque support (41) is screwed into the passage (40) while engaging the fastening thread (40.1).

4. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) which is movable relative to the mouthpiece (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) which has a movement thread (33.3) and is operatively connected to the mandrel holder (12) and is designed to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent and the A torque support (41) is assigned to the threaded spindle (33) which secures the threaded spindle (33) against rotation relative to the device housing (5), characterized in that the torque support (41) is fastened to the threaded spindle (33) by screwing via a fastening thread (40.1) which is opposite to the movement thread (33.3) of the threaded spindle (33).

5. Riveting tool according to one of the preceding claims, wherein the torque support (41) has a base body (41.1) which projects axially from the threaded spindle (33) and forms an anti-twist device directly or indirectly via at least one intermediate element (42) against an abutment (43) which is secured against rotation relative to the tool housing (5).

6. Riveting tool according to claim 5, wherein the base body (41.1) has a bore extending transversely to the spindle axis (S) of the threaded spindle (32.1) (44) in which a magnetically acting magnetic element (45) for a Hall sensor device.

7. Riveting tool according to claim 6, wherein the intermediate element (42) is an iron element and the bore (44) is arranged close thereto, so that the magnetic element (45) is held in the bore (44) by magnetic force.

8. Riveting tool according to one of claims 5 to 7, wherein, starting from the spindle axis (S), the base body (41.1) has a radial extension in at least one spatial direction which is less than or equal to the radial extension of the threaded spindle (33) in the region of the base body (41.1).

9. Riveting tool according to one of claims 5 to 8, wherein the threaded spindle (33) is in engagement with a spindle nut (34) of a spindle gear (32) and the drive device (30) has an electric motor (31) and a reduction stage (37) with an intermediate shaft (38) interposed between the electric motor (31) and the spindle gear (32), wherein in the axial direction the reduction stage (37) is arranged between the spindle nut (34) and a wall section (7) of the tool housing (5), and wherein starting from the shaft axis (A) of the intermediate shaft (38), the reduction stage (37) has a radial extension which is smaller than the distance between the shaft axis (A) of the intermediate shaft (38) and the facing outer side of the base body (41.1) and / or the threaded spindle (33).

10. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) movable relative to the mouthpiece (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 movement thread (33.3), which is operatively connected to the mandrel holder (12) and is designed to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent and the threaded spindle (33) is in engagement with a spindle nut (34) of a spindle gear (32), and the drive device (30) comprises an electric motor (31) and a drive unit arranged between the electric motor (31) and the spindle gear (32). intermediate reduction stage (37) with an intermediate shaft (38),wherein in the axial direction the reduction stage (37) is arranged between the spindle nut (34) and a wall section (7) of the device housing (5), characterized in that starting from the shaft axis (A) of the intermediate shaft (38), the reduction stage (37) has a radial extension which is smaller than the distance between the shaft axis (A) of the intermediate shaft (38) and the facing outer side of the base body (41.1) and / or the threaded spindle (33).

11. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) which is movable relative to the mouthpiece (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) which has a movement thread (33.3), which is operatively connected to the mandrel holder (12) and is designed to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent and the A threaded spindle (33) is in engagement with a spindle nut (34) of a spindle gear (32), and the drive device (30) has an electric motor (31) and a reduction stage (37) with an intermediate shaft (38) arranged between the electric motor (31) and the spindle gear (32), wherein the reduction stage (37) is arranged in the axial direction between the spindle nut (34) and a wall section (7) of the device housing (5), characterized in that the intermediate shaft (38) is mounted radially in relation to the device housing (5) via a radial bearing (46) in a manner fixed to the housing, and the radial bearing (46) is located on the side of the reduction stage (37) facing away from the wall section (7).

12. Riveting tool according to claim 11, wherein a gear element (37.1) of the reduction stage (37) is arranged on the intermediate shaft (38) in the region of a free end of the intermediate shaft (38) facing the wall section (7) 13. Riveting tool according to one of the preceding claims, wherein the riveting tool (1) comprises a spring element (15) which acts with a force into the mandrel receptacle (12), wherein the spring element (15) is arranged in the passage (40) of the threaded spindle (33) and an extension (41.2) of the torque support (41) present in the passage (40) is used as a counter-holder for the spring element (15).

14. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel receptacle (12) movable relative to the mouthpiece (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 movement thread (33.3), which is operatively connected to the mandrel receptacle (12) and is designed to be moved along the effective axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent, a tubular element (50) and a collecting container (60), wherein a mandrel channel from the passage (40) to the collecting container (60) is formed via the tubular element (50), and wherein the tubular element (50) is fastened to a wall section (7) of the device housing (5) running transversely to the tube axis of the tube element (50), and the wall section (6) has an inner side (6.2) facing the threaded spindle (33) and an opposite outer side (6.3), characterized in that the tube element (50) has a fastening structure (51) which is substantially flush with the inner side (7.2) and / or the outer side (6.3) of the wall section (7) or is lower than the inner side (7.2) and / or the outer side (6.3) of the wall section (7).

15. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) which is movable relative to the mouthpiece (11) along an effective axis (W), a drive device (30) in the device housing (5) for actuating the riveting tool (10) with a movement thread (33).3) having a threaded spindle (33) which is operatively connected to the mandrel holder (12) and is designed to be moved along the operative axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent, a tubular element (50) and a collecting container (60), wherein a mandrel channel from the passage (40) to the collecting container (60) is formed via the tubular element (50), and wherein the tubular element (50) is fastened to a wall section (6) of the device housing (5) running transversely to the tube axis of the tubular element (50), and the wall section (6) has an inner side (6.2) facing the threaded spindle (33) and an opposite outer side (6.3), characterized in that the tubular element (50) has a fastening structure (51) with two flange sections (52, 53), which each run along a different circumferential section around the outer circumference of the tubular element (50) and have a flange surface (52.1, 53.1) which cooperates with a counter surface (6.1; 6.1') of the wall section (6), wherein the flange surfaces (52.1, 53.1) point in opposite directions to one another and one of the counter surfaces (6.1, 6.1') on the inner side (6.2) and the other. Counter surface (6.1') is formed on the outer side (6.3) of the wall section (6).

16. Riveting tool according to claim 15, wherein the tool housing (5) is multi-part and has at least two housing parts (7, 8) lying against one another in a dividing plane, each of which is assigned one of the counter surfaces (6.1, 6.1') of the wall section (6).

17. Riveting device (1), comprising a device housing (5), a riveting tool (10) with a mouthpiece (11) and a mandrel holder (12) which is movable relative to the mouthpiece (11) along an effective axis (W), a drive device (30) in the device housing (5) for actuating the riveting tool (10) with a movement thread (33).3) having a threaded spindle (33) which is operatively connected to the mandrel receptacle (12) and is designed to be moved along the operative axis (W), wherein the threaded spindle (33) is designed as a hollow spindle with a passage (40) running in the direction of its longitudinal extent, a tubular element (50) and a collecting container (60), wherein a mandrel channel from the passage (40) to the collecting container (60) is formed via the tubular element (50), and wherein the tubular element (50) is fastened to a wall section (7) of the device housing (5) running transversely to the tube axis of the tubular element (50), and the wall section (6) has an inner side (6.2) facing the threaded spindle (33) and an opposite outer side (6.3), characterized in that the tubular element (50) engages in the passage (40) of the threaded spindle (33).

18. Riveting tool according to one of claims 14 to 17, wherein the tubular element (50) engages telescopically in the passage (40).

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

20. Blind rivet setting tool (100), comprising a riveting tool (1) according to one of claims 1 to 19 with a rivet mandrel (120) of a blind rivet (110) to be set, which is received in the mandrel holder (12) of the riveting tool (1).

21. Blind rivet nut setting tool (200), comprising a riveting tool (1) according to one of claims 1 to 19 with a threaded rivet mandrel (220) accommodated in the mandrel receptacle (12) of the riveting tool (1) for a blind rivet nut (210) to be set.

22. Blind rivet screw setting tool (300), comprising a riveting tool (1) according to one of claims 1 to 19 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 tool (1).

Images