Riveting device with a compact design
Patent Information
- Application Number
- EP2023739103
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-06-30
- Filing Date
- 2023-06-29
- Publication Date
- 2025-05-07
- Estimated Expiration
- 2043-06-29
Smart Images
Figure 1.1
Abstract
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 which is often electromechanical and comprises, for example, an electric motor and a spindle gear designed as a ball screw drive. Such a riveting tool is described in EP 0 670 199 A1, which is referred to therein as a setting tool. The riveting tool is designed for setting blind rivet nuts and is designed to subject the blind rivet nut to a compression which produces a closing head by exerting a pulling movement on a threaded rivet mandrel.
[0006] 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.
[0007] One embodiment of a basic riveting device comprises a riveting tool, an electromechanical drive device and preferably a device housing in which the electromechanical drive device is accommodated. The electromechanical drive device preferably has an electric motor with an output shaft and a gear mechanism, in particular a spindle gear, operatively connected thereto. The spindle gear mechanism is preferably designed to convert a rotary drive movement emanating from the output shaft into a translatory drive movement acting along an operative axis for actuating the riveting tool. In particular, the spindle gear mechanism is mounted radially with respect to the operative axis via a radial bearing in a bearing housing.
[0008] For example, the riveting device, particularly the riveting tool, is suitable for blind riveting, where the riveting process is carried out 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.
[0009] An improved compactness is achieved by a riveting tool design in which the bearing housing for the radial bearing of the spindle gear is formed on the tool housing. This eliminates the need for a separate bearing housing for the radial bearing, and the radial space required for the separate bearing housing can be saved. Eliminating the separate bearing housing also results in a weight advantage.
[0010] The improved riveting tool can be designed such that the bearing housing is integrally formed with the device housing. For example, the bearing housing and the device housing are connected to one another as a single piece. This facilitates simple and / or cost-effective production of the bearing housing, since the bearing housing can be manufactured simultaneously during the production of the device housing.
[0011] The improved riveting tool can further be designed such that the tool housing, at least in the area of the bearing housing, is a plastic housing comprising or consisting of a plastic material. This facilitates a lightweight design of the riveting tool, particularly at relatively low material costs.
[0012] The improved riveting tool can further be designed such that the radial bearing has a deformation-resistant, particularly flexurally rigid outer ring, which is held in the bearing housing, for example, in a rotationally fixed or rotatable manner. This counteracts a possible loss of stability in the area of the bearing housing, which can occur, for example, if the bearing housing is a plastic housing or the plastic housing described above. For example, the outer ring comprises or consists of a metallic material.
[0013] The improved riveting tool can further be designed such that the radial bearing is designed as a thin-ring bearing. This further improves the compactness of the riveting tool in the radial direction, particularly if the riveting tool has the protruding outer ring, which is then designed as a thin ring of the thin-ring bearing.
[0014] In one embodiment, the riveting tool comprises a spring element that applies a force to at least one clamping element of the riveting tool. In this case, the improved riveting tool can be designed such that the radial bearing has an axial bearing function for absorbing a counterforce emanating from the spring element. The radial bearing thus acts radially with respect to the spindle gear and axially with respect to the spring element. This dual function of the radial bearing achieves improved functional integration.
[0015] The improved riveting tool can also be designed so that the radial bearing is supported axially against the bearing housing only in the direction of the counterforce exerted by the spring element. This facilitates a compact design of the bearing housing, since the dimensioning of the bearing housing in the axial direction only takes into account the spring force of the spring element and not the much higher force of the spindle gear, which acts in the opposite axial direction during the riveting process.
[0016] The improved riveting tool can also be designed so that the radial bearing is a rolling bearing, in particular a deep groove ball bearing. This promotes cost reduction. The deep groove ball bearing is also suitable if the radial bearing is to have the axial bearing function described above.
[0017] In a further embodiment, the device housing is constructed in several parts and comprises at least two housing shells lying adjacent to one another in a parting plane, wherein the effective axis runs in the parting plane or parallel thereto. In this case, the improved riveting device can be designed such that at least one circumferential section of the bearing housing is formed on the housing shells, in particular a circumferential section of the bearing housing is formed, in particular integrally formed, on the respective housing shell. This facilitates assembly of the riveting device, at least in the region of the radial bearings of the spindle gear.
[0018] In a further embodiment, the spindle gear comprises a threaded spindle and a spindle nut engaged therewith. For example, in this case, the threaded spindle is configured to perform the translational drive movement for actuating the riveting tool, and the spindle nut is mounted radially relative to the effective axis by the radial bearing and, in particular, is driven by the electric motor.
[0019] Further progress is achieved, additionally or alternatively, by an embodiment in which the spindle gear is mounted axially with respect to the effective axis via an axial bearing in a deformation-resistant, preferably separate support ring serving as a bearing housing, and the support ring is supported in the axial direction on a mouthpiece via a deformation-resistant, in particular flexurally rigid tool housing. As a result, the relatively high axial forces of the spindle gear acting on the axial bearing during operation of the riveting tool are specifically absorbed in such a way that the tool housing is bypassed. Accordingly, the tool housing can be designed for a lower maximum load and thus made more compact.
[0020] Furthermore, the nosepiece and the tool housing are components of the riveting tool that are used to absorb the force and are, due to their function, more stable anyway. For example, a mandrel holder for fixing a rivet mandrel of a rivet to be set, in particular a blind rivet, is accommodated in the tool housing and can be moved therein along the effective axis relative to the nosepiece. For example, the mandrel holder comprises a chuck housing that can be moved relative to the nosepiece along or in the direction of the effective axis and at least one clamping element, in particular a clamping jaw, that can be moved in the chuck housing along a clamping path.
[0021] For example, the tool housing houses the nosepiece through which the rivet mandrel is inserted into the mandrel holder. The axial bearing is, for example, an axial roller bearing, particularly an axial deep groove ball bearing. In principle, the axial bearing can also be an axial needle bearing.
[0022] In a further embodiment, at least one reduction stage is interposed between the electric motor and the spindle gear. In this case, the improved riveting device can be designed such that the at least one reduction stage is radially mounted via a radial bearing in a shaft bearing housing which is formed on the device housing, in particular is integrally formed thereon. This avoids the need for a separate shaft bearing housing for the radial mounting of the at least one reduction stage, and the radial installation space required for the separate shaft bearing housing can be saved. With regard to the at least one reduction stage, there is also a weight advantage due to the elimination of the separate shaft bearing housing. The at least one reduction stage can be a spur gear or an epicyclic gear, such as a planetary gear.
[0023] In a further embodiment, the riveting tool is designed as a hand-held riveting tool and comprises a handle, which is formed, for example, on the tool housing, in particular is molded thereon. 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 applied to a location to be riveted. For example, a switching element is assigned to the handle, which starts the electric motor to actuate the riveting tool.
[0024] 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, received in its mandrel receptacle. 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 for a blind rivet nut to be set, received in its mandrel receptacle.
[0025] 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.
[0026] Further details and features will become apparent from the following description of several embodiments based on the drawings.
[0027] 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 view,
[0028] Fig. 2 shows the exemplary riveting device in an enlarged section of Figure 1 in the area of the riveting tool and a spindle gear connected thereto,
[0029] Fig. 3 shows the exemplary riveting device in an enlarged section of Figure 1 in the area of the drive device,
[0030] Fig. 4 shows an exemplary embodiment of a device housing for the riveting device of Figure 1 as a two-shell design in a perspective view,
[0031] Fig. 5 shows a half-shell of the device housing of Figure 4 in a side view,
[0032] Fig. 6 shows a possible embodiment of a blind rivet setting tool with the exemplary riveting tool of Figure 1 in a schematic partial representation,
[0033] Fig. 7 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 Fig. 8 shows a possible embodiment of a blind rivet screw setting tool with the exemplary riveting tool of Figure 1 in a schematic partial representation.
[0034] 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.
[0035] 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 12. The drive device 30 is preferably accommodated in a device housing 50. The tool housing 12 is preferably a metal housing. The device housing 50 is preferably a plastic housing.
[0036] 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.
[0037] Figure 2 shows the exemplary riveting device 1 in the area of the riveting tool 10 and the spindle gear 32 in an enlarged section of Figure 1. As can be seen in particular therefrom, the riveting tool 10 can comprise a mouthpiece 11 and a mandrel holder 13 which is movable relative to the mouthpiece 11 in the direction of an effective axis W. For example, the mandrel holder 13 has a chuck housing 13.1 and at least one, preferably several clamping elements 14, 14', in particular clamping jaws, which are movable in the chuck housing 13.1 along a clamping path. Preferably, the mouthpiece 11 and / or the mandrel holder 13 and / or the chuck housing 13.1 and / or the clamping elements 14, 14' are a metal part. The mouthpiece 11 serves, for example, to receive a blind rivet (not shown in Figures 1 and 2) to be set and preferably has a through hole 11.1 in order to insert the rivet mandrel of the blind rivet therein.The chuck housing 13 with the clamping elements 14, 14' arranged therein so as to be movable serves, for example, to fix the rivet mandrel in the chuck housing 13 so that a non-displaceable connection is created between the received rivet mandrel and the chuck housing 13.
[0038] The drive device 30 can actuate the riveting tool 10 in such a way that the mandrel holder 13 or the chuck housing 13. 1 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 13 or the chuck housing 13. 1 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.
[0039] Preferably, the mouthpiece 11 is fastened to the tool housing 12, for example, screwed thereto. Preferably, the mandrel receptacle 13 or the chuck housing 13.1 is accommodated in the tool housing 12 so as to be movable in the direction of the effective axis W. For example, the tool housing 12 is tubular. For example, the mouthpiece 11 is fastened to one end of the tool housing 12, and the opposite end faces the device housing 50.
[0040] The spindle gear 32 is preferably arranged in the device housing 50. The spindle gear 32 preferably comprises a threaded spindle 32.1 and a spindle nut 32.2 engaging therewith or engageable therewith. The threaded spindle 32.1 and the spindle nut 32.2 are preferably arranged concentrically to one another with respect to a gear axis. The output shaft 31.1 of the electric motor 31 is preferably arranged axially parallel to the gear axis. The gear axis preferably lies on the effective axis W.
[0041] For example, the threaded spindle 32.1 and the spindle nut 32.2 are configured such that the spindle nut 32.2 is the gear element driven or drivable by the electric motor 31, and the threaded spindle 32.1 is used to execute the translational drive movement to actuate the riveting tool 10. For example, the spindle nut 32.2 is rotatably mounted in the device housing 50, and the threaded spindle 32.1 is secured against rotation relative to the device housing 50.
[0042] For example, the threaded spindle 32 . 1 is also operatively connected to the mandrel holder 13 or the chuck housing 13 . 1 . This operative connection can be realized in that the threaded spindle
[0043] 32 . 1 is directly connected with one end or end section to the mandrel holder 13 or the chuck housing 13 . 1 . For example, the threaded spindle 32 . 1 and the mandrel holder 13 or the chuck housing
[0044] 13 . 1 screwed together .
[0045] Preferably, the threaded spindle 32.1 is designed as a hollow spindle with a passage extending in the direction of its longitudinal extent. The passage makes it possible to remove a remainder of a rivet mandrel remaining from a riveting process from the riveting tool 10, for example, via a tubular element 4, to a collecting container 5. Preferably, the collecting container 5 is arranged fixedly with respect to the device housing 50, in particular arranged detachably.
[0046] In the exemplary riveting tool 1, the tool housing 50 is used for the radial mounting of the spindle gear 32. Figures 1 and 2 show an example of a possible embodiment. There, the radial mounting of the spindle gear 32 takes place directly in the tool housing 50. This can be achieved by the spindle gear 32 being radially mounted in a bearing housing 34 via a radial bearing 33, and the bearing housing 34 is formed on the tool housing 50, for example, by being molded onto it. The bearing housing 34 is therefore preferably formed by the tool housing 50. This makes it possible to save installation space in the radial direction. At the same time, components for the radial bearing can be saved in this way.
[0047] Preferably, the radial bearing 33 has a rigid outer ring
[0048] 33 . 1 ( Figure 2 ), which is held in the bearing housing 34 . This enables a sufficiently durable radial bearing function, even if the bearing housing 34 is a plastic housing as part of the device housing 50. For example, the radial bearing 33 is a rolling bearing, in particular a deep groove ball bearing. In order to further improve the compactness of the riveting device 1 in the radial direction with respect to the gear axis or the effective axis W, the radial bearing 33 is a thin-ring bearing.
[0049] In the exemplary riveting tool 1, the radial bearing 33 is assigned to the spindle nut 32.2, i.e. the spindle nut 32.2 is mounted by the radial bearing 33. The radial bearing 33 is preferably mounted on the outer circumference of the spindle nut 32.2. A further radial bearing 33' is preferably provided for the radial mounting of the spindle nut 32.2, which is arranged at an axial distance from the radial bearing 33 with respect to the gear axis. A drive point, via which the electric motor 31 is operatively connected to the spindle nut 32.2, is preferably located between the radial bearing 33 and the further radial bearing 33'.
[0050] Preferably, the device housing 50 is also used for the radial support of the spindle nut 32.2 via the additional radial bearing 33'. This can be realized in the same way as with the radial bearing 33, in that the radial support takes place via the additional radial bearing 33' directly in the device housing 50. For example, a further bearing housing 34' is provided to accommodate the additional radial bearing 33', and this additional bearing housing 34' is formed on the device housing 50, for example, molded onto it.
[0051] The spindle gear 32 is preferably axially mounted via a separate axial bearing 35 in order to be able to adequately absorb the axial force of the spindle gear acting during operation of the riveting tool 1. In the exemplary riveting tool 1, for example, the spindle nut 32.2 is mounted axially with respect to the gear axis or the effective axis W via the axial bearing 35 in a support ring 36 serving, for example, as a bearing housing, wherein the support ring 36 is supported in the axial direction via the tool housing 12 on the mouthpiece 11. The tool housing 12 itself is held, in particular loosely held, on the support ring 36, for example via a holding structure 51, such as, for example, an annular cover element.
[0052] For example, the support ring 36 has a circumferential axial end section 36 . 1 , which serves to position the axial bearing 35 in the radial direction. The support ring 36 is preferably designed to be deformation-resistant or pressure-resistant. For example, the support ring 36 is a metal part. For example, the support ring 36 is a separate component. For example, the axial bearing 35 is an axial roller bearing. In principle, the axial bearing 35 can also be a needle bearing.
[0053] One of the radial bearings 33, 33' for the spindle gear 32, in particular the radial bearing 33, can additionally have an axial bearing function. This additional axial bearing function is suitable for absorbing a counterforce emanating from a spring element 15. The spring element 15 can be provided to apply a spring force to the clamping elements 14, 14' into the chuck housing 13.1. As a result, the clamping elements 14, 14' are pressed into the clamping position against a rivet mandrel of a blind rivet inserted into the chuck housing 13.1 via the through hole 11.1 of the nosepiece 11.
[0054] For example, the spring element 15 is supported on the one hand against a counter-holder 17 arranged so as to be non-displaceable relative to the threaded spindle 32.1 and on the other hand acts on at least one of the clamping elements 14, 14' via a pressing part 16, such as a pressure sleeve. For example, the threaded spindle 32.1 is designed as a hollow spindle and the pressing part 16 is received therein via one end so as to be displaceable relative to the threaded spindle 32.1 and the counter-holder 17 is fastened, in particular screwed, to the threaded spindle 32.1 via the other end. For example, the spring element 15 is arranged in the threaded spindle 32.1 between the pressing part 16 and the counter-holder 17. For example, the spring element 15 is a compression spring.
[0055] The axial bearing function provided by the one radial bearing 33 serves, preferably exclusively, to absorb the relatively low counterforce from the spring element 15. The bearing housing 34, for example, is also designed in a corresponding manner. The bearing housing 34, for example, has an axial contact surface 34.1 on one side only, so that the radial bearing 33 is supported axially against the bearing housing 34 exclusively in the direction of the counterforce caused by the spring element 15. For example, the radial bearing 33 is arranged in the region of the rear axial end of the spindle nut 32.2. The rear axial end is to be understood as the end of the spindle nut 32.2 facing away from the riveting tool 10. The further radial bearing 33' is arranged, for example, in the region of the front axial end of the spindle nut 32.2.
[0056] Figure 3 shows an example of the riveting tool 1 in the area of the drive device 30 in an enlarged section. As can be seen particularly therefrom, at least one reduction stage 37 can be interposed between the electric motor 31 and the spindle gear 32. The tool housing 50 can also be used for the radial mounting of the at least one reduction stage 37, for example by providing the radial mounting via an additional radial bearing 39 directly in the tool housing 50. For example, a shaft bearing housing 40 is provided to accommodate the additional radial bearing 39, which is formed on the tool housing 50, for example, by being molded onto it.
[0057] In the exemplary riveting tool 1, the at least one reduction stage 37 has, for example, an intermediate shaft 38. The intermediate shaft 38 is preferably radially mounted in the shaft bearing housing 40 via the radial bearing 39 described above. A further radial bearing 39' is preferably provided as a second radial bearing for the intermediate shaft 38. The second radial bearing 39' is preferably accommodated in a further shaft bearing housing 40', which is formed, for example, integrally formed, on the tool housing 50. For example, in addition to the one reduction stage 37, a further reduction stage 37' is interposed between the electric motor 31 and the spindle gear 32, wherein the reduction stages 37, 37' are connected one behind the other in the power flow and use the intermediate shaft 38 as a common intermediate shaft.
[0058] Preferably, one radial bearing 39 radially supports the intermediate shaft 38 between gear elements 37.1, 37.1' of the reduction stages 37, 37' mounted thereon. The gear elements 37.1, 37.1' are each in engagement with associated gear elements 37.2, 37.2' of the reduction stages 37, 37', of which one gear element 37.1 is assigned to the output shaft 31.1 of the electric motor 31 and another gear element 37.2' is assigned to the spindle nut 32.2, in particular are arranged in a rotationally fixed manner thereon. For example, at least one of the reduction stages 37, 37' is a spur gear stage, and the associated gear elements 37.1, 37.2 and 37.1', 37.2' are spur gears. The device housing 50 can also be used for the radial mounting of the electric motor 31, for example by providing the radial mounting via radial bearings 41, 41' directly in the device housing 50.For example, additional shaft bearing housings 42, 42' are formed, in particular molded, on the device housing 50. In this way, a bearing for the electric motor 31 can be realized.
[0059] Figure 4 shows an exemplary embodiment of the device housing 50 for the riveting device 1. The device housing 50 can be constructed in several parts and, for example, comprise at least two housing shells 52, 52' lying next to one another in a parting plane 53. For example, the housing shells 52, 52' are half shells. Figure 5 shows, by way of example, one of the housing shells 52, 52', in particular the housing shell 52 in a view of its interior or of the parting plane 53.
[0060] As can be seen therefrom, material formations can be provided on wall sections of the housing shell 52, which form the bearing housings described above, for example the bearing housings 34 and 34' for the spindle gear 32 and / or the shaft bearing housings 40, 40' for the at least one reduction stage 37 and / or the shaft bearing housings 42, 42' for the electric motor 31. Preferably, a circumferential section of the corresponding bearing housing is formed on the respective housing shell 52 or 52'.
[0061] The 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 50. For example, the hand-held riveting tool 1 has a handle part 2, which is at least partially formed by the tool housing 50. 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 blind rivet. The riveting process as such then takes place by actuating the riveting tool 10 via the drive device 30.
[0062] 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.
[0063] Instead of the riveting tool 1 for a blind rivet described here as an example, the tool housing 50 with its at least one bearing housing 34 or 34' or 40 or 40' or 42 or 42' formed thereon for the radial bearing of the spindle gear 32 and / or the at least one reduction stage 37 or 37' and / or the electric motor 31 can also be used on a riveting tool for a blind rivet nut or on a riveting tool for a blind rivet screw. Such a tool housing makes it possible to reduce the number of components and / or the weight of the riveting tool. In principle, all components of the riveting tool, preferably with the exception of the axial bearing described above for absorbing axial forces of the spindle gear, can be mounted directly on the tool housing.
[0064] Figure 6 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 6. 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 13, in particular the chuck housing 13.1, and fixed in the axial direction, for example by the at least one clamping element 14 or 14'. Figure 6 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.
[0065] Figure 7 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 13 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 spindleing the threaded rivet mandrel into the blind rivet nut. For the sake of simplicity, Figure 7 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 13. Figure 7 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.
[0066] Figure 8 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 13 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 8 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 13. Figure 8 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.
[0067] List of reference symbols
[0068] 1 riveting tool
[0069] 2 handle part
[0070] 2.1 Grip surface
[0071] 3 accumulator
[0072] 4 pipe element
[0073] 5 On collection container
[0074] 10 riveting tools
[0075] 11 Mouthpiece
[0076] 11.1 Through hole
[0077] 12 tool housings
[0078] 13 Mandrel holder
[0079] 13.1 Chuck housing
[0080] 14 clamping element
[0081] 14 ' clamping element
[0082] 15 spring element
[0083] 16 Press part
[0084] 17 Counterholder
[0085] 30 Drive device
[0086] 31 electric motor
[0087] 31.1 Output shaft
[0088] 32 spindle gears
[0089] 32.1 Threaded spindle
[0090] 32.2 Spindle nut
[0091] 33 radial bearings
[0092] 33 ' additional radial bearing
[0093] 33.1 Outer ring
[0094] 34 bearing housings
[0095] 34.1 Contact surface
[0096] 34 ' additional bearing housing
[0097] 35 thrust bearings
[0098] 36 support ring
[0099] 36.1 axial end section
[0100] 37 reduction stage
[0101] 37.1 Gear element
[0102] 37.2 Gear element
[0103] 37 ' reduction stage
[0104] 37.1' Gear element
[0105] 37.2 ' Gear element 38 Intermediate shaft
[0106] 39 radial bearings
[0107] 39 ' radial bearing
[0108] 40 shaft bearing housings
[0109] 40 ' shaft bearing housing
[0110] 41 radial bearings
[0111] 41 ' radial bearing
[0112] 42 shaft bearing housings
[0113] 42 ' shaft bearing housing
[0114] 50 device housings
[0115] 51 Support structure
[0116] 52 Housing shell
[0117] 52 ' housing shell
[0118] 53 division level
[0119] 100 blind rivet setting tool
[0120] 110 blind rivet
[0121] 120 rivet mandrel
[0122] 130 rivet bodies
[0123] 200 blind rivet nut setting tool
[0124] 210 blind rivet nut
[0125] 220 threaded rivet mandrel
[0126] 230 rivet bodies
[0127] 300 blind rivet screw setting tool
[0128] 310 blind rivet screw
[0129] 320 threaded rivet mandrel
[0130] 330 rivet bodies
[0131] W effective axis
Claims
Patent claims 1. Riveting device (1), comprising a riveting tool (10), an electromechanical drive device (30) and a device housing (50) receiving the electromechanical drive device (30), wherein the electromechanical drive device (30) has an electric motor (31) with an output shaft (31.1) and a spindle gear (32) operatively connected thereto, which is 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), and which is mounted via a radial bearing (33) in a bearing housing (34) radially with respect to the effective axis (W), characterized in that the bearing housing (34) is formed on the device housing (50).
2. Riveting tool according to claim 1, wherein the bearing housing (34) is integrally formed on the tool housing (50).
3. Riveting tool according to claim 1 or 2, wherein the tool housing (50) is a plastic housing, at least in the region of the bearing housing (34), which comprises or consists of a plastic material.
4. Riveting tool according to one of the preceding claims, wherein the radial bearing (33) has a deformation-resistant outer ring (33.1) which is held in the bearing housing (34).
5. Riveting tool according to one of the preceding claims, wherein the riveting tool (1) comprises a spring element (15) which applies a force to at least one clamping element (14) of the riveting tool (10), and the radial bearing (33) has an axial bearing function for absorbing a counterforce emanating from the spring element (15).
6. Riveting tool according to claim 5, wherein the radial bearing (33) is supported axially against the bearing housing (34) only in the direction of the counterforce caused by the spring element (15).
7. Riveting tool according to one of the preceding claims, wherein the Spindle gear (32) a threaded spindle (32.1) and a Engaging spindle nut (32.2), wherein the threaded spindle (32.1) is configured to carry out the translational drive movement for actuating the riveting tool (10), and the spindle nut (32.2) is mounted by the radial bearing (33).
8. Riveting tool according to one of the preceding claims, wherein the radial bearing (33) is a rolling bearing, in particular a deep groove ball bearing.
9. Riveting tool according to one of the preceding claims, wherein the radial bearing (33) is a thin-ring bearing.
10. Riveting tool according to one of the preceding claims, wherein the tool housing (50) is multi-part and comprises at least two housing shells (52, 52') lying against one another in a parting plane (53), wherein the effective axis (W) runs in the parting plane (53) or parallel thereto and a circumferential section of the bearing housing (34) is formed on the respective housing shell (52; 52').
11. Riveting device (1), in particular according to one of the preceding claims, comprising a riveting tool (10), an electromechanical drive device (30) and a device housing (50) receiving the electromechanical drive device (30), wherein the electromechanical drive device (30) has an electric motor (31) with an output shaft (31.1) and a spindle gear (32) operatively connected thereto, which is 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), characterized in that the spindle gear (32) is mounted axially with respect to the effective axis (W) via an axial bearing (35) in a deformation-resistant, separate support ring (36) serving as a bearing housing, wherein the support ring (36) extends in the axial direction via a deformation-resistant tool housing (12) is supported on a mouthpiece (11).
12. Riveting tool according to claim 11, wherein the axial bearing (35) is an axial rolling bearing.
13. Riveting tool according to one of the preceding claims, wherein at least one reduction stage (37) is interposed between the electric motor (31) and the spindle gear (32), wherein the at least one reduction stage (37) is radially mounted via a radial bearing (39) in a shaft bearing housing (40) which is formed on the tool housing (50).
14. 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 (50).
15. Blind rivet setting tool (100), comprising a riveting tool (1) according to one of claims 1 to 14 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).
16. Blind rivet nut setting tool (200), comprising a riveting tool (1) according to one of claims 1 to 14 with a threaded rivet mandrel (220) accommodated in the mandrel holder (12) of the riveting tool (1) for a blind rivet nut (210) to be set.
17. Blind rivet screw setting tool (300), comprising a riveting tool (1) according to one of claims 1 to 14 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).