Electric rivet pulling tool

Abstract

The utility model discloses an electric rivet pulling tool which comprises a shell, a rivet pulling unit, a gun head unit, a rivet collecting barrel and a sleeve. The rivet pulling unit is located in an inner cavity of the shell. The rivet pulling unit comprises a lead screw, a lead screw nut, a driving device, a first bearing seat and a second bearing seat. The two ends of the lead screw nut are rotationally installed in the shell through a first bearing seat and a second bearing seat correspondingly. The lead screw penetrates through the lead screw nut and is connected with the lead screw nut; one end of the sleeve is clamped with the gun head unit, and the other end of the sleeve and the first bearing seat abut against the two sides of the positioning flange; the nail collecting barrel is detachably connected with the shell, and the second end of the lead screw extends into the nail collecting barrel. According to the electric rivet pulling tool, all parts are tightly matched and connected, so that the overall stability of the electric rivet pulling tool is improved, and the service life of the electric rivet pulling tool is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of riveting tools, specifically to an electric riveting tool. Background Technology

[0002] Rivet guns are specialized tools for installing rivets, and are generally classified into manual rivet guns, pneumatic rivet guns, and electric rivet guns. Among them, electric rivet guns, especially handheld electric rivet guns, are convenient to carry and suitable for field operations, making them widely used. However, existing rivet guns still have the following shortcomings. When riveting with an electric rivet gun, it is usually necessary to first manually insert the rivet into the head of the electric rivet gun, then align the rivet head with the riveting hole on the surface of the workpiece, and finally perform the riveting, pulling the rivet core and head apart.

[0003] When the worker uses an electric rivet gun to complete a rivet and inserts the next rivet, the core of the previous rivet is pushed backward so that the core of the previous rivet passes through the axial through hole of the lead screw and the axial through hole of the discharge pipe and falls into the rivet collecting cylinder.

[0004] Existing electric rivet guns are all prone to damage. Especially when electric rivet guns are used to install large-sized rivets, the high-intensity work makes them more susceptible to damage, seriously affecting their service life. Utility Model Content

[0005] This utility model proposes an electric riveting tool to solve the technical problem that electric riveting tools are prone to damage.

[0006] This utility model discloses an electric riveting tool, including a housing, a riveting unit, a gun head unit, a nail collection cylinder, and a sleeve;

[0007] The housing is hollow inside, and the riveting unit is located in the inner cavity of the housing;

[0008] The riveting unit includes a lead screw, a lead screw nut, a drive device, a first bearing seat, and a second bearing seat;

[0009] The first and second ends of the lead screw nut are rotatably mounted in the housing via the first bearing seat and the second bearing seat, respectively; the lead screw has a hollow structure, passes through the lead screw nut, and is connected to the lead screw nut; the driving device is adapted to drive the lead screw nut to rotate, so that the lead screw reciprocates along the axial direction of the lead screw;

[0010] The outer peripheral wall of the gun head unit is provided with a positioning stop; the outer peripheral wall of the first end of the first bearing seat is provided with a positioning ring groove; the inner edge of the first end of the sleeve is provided with an annular stop, and the inner edge of the second end of the sleeve is provided with an annular protrusion; the annular protrusion engages with the positioning ring groove, and the annular stop and the end face of the first end of the first bearing seat abut against both sides of the positioning stop, so that the first end of the lead screw is connected and communicates with the gun head unit;

[0011] The nail collecting cylinder is detachably connected to the housing, and the second end of the lead screw extends into the nail collecting cylinder, communicating with the inner cavity of the nail collecting cylinder. Through the tight fit and connection between the various components, the overall stability of the electric riveting tool is improved, and its service life is extended.

[0012] Optionally, the riveting unit further includes a drive shaft;

[0013] The drive shaft is located between the lead screw nut and the drive device; the first end of the drive shaft is rotatably mounted on the first bearing seat, and the drive shaft is provided with a first gear and a second gear; the output shaft of the drive device is provided with a third gear;

[0014] The first gear meshes with the outer edge of the lead screw nut; the second gear is located at the second end of the transmission shaft, and the second gear meshes with the third gear. Using the above scheme, transmission between the lead screw nut and the drive device is achieved through the transmission shaft.

[0015] Optionally, the electric riveting tool further includes a sensing device and a controller;

[0016] The sensing device and the controller are disposed in the inner cavity of the housing, and the sensing device includes a magnet, a Hall sensor and a mounting base;

[0017] The mounting base is mounted on the lead screw, and the mounting base is located between the nail collection cylinder and the second bearing seat; the magnet is disposed on the mounting base;

[0018] The Hall sensor is fixed inside the housing;

[0019] The controller is connected to the Hall sensor, and the controller is adapted to control the drive device to reverse or stop operation based on the interaction between the magnet and the Hall sensor. This scheme enables the drive device to effectively reverse or stop operation.

[0020] Optionally, the mounting base includes a positioning block, a mounting rod, a base, a self-locking nut, and two shock-absorbing rings;

[0021] The positioning block is sleeved on the lead screw;

[0022] Both ends of the mounting rod pass through the positioning block, and the side wall of the mounting rod abuts against the outer peripheral wall of the lead screw;

[0023] The base is threaded to one end of the mounting rod, and a shock-absorbing ring is provided between the base and the positioning block; the base is hollow inside, and the magnet is disposed inside the base.

[0024] The self-locking nut is threaded to the other end of the mounting rod, and a shock-absorbing ring is provided between the self-locking nut and the positioning block. By adopting the above solution, and by providing shock-absorbing rings between the base and the positioning block, and between the self-locking nut and the mounting rod, the vibration generated when the electric riveting tool breaks the rivet is reduced, extending the service life of the mounting base and enhancing the stability of the sensing device.

[0025] Optionally, the riveting unit further includes a protective housing;

[0026] The protective shell is fixed inside the housing and mounted on the second bearing seat. The protective shell covers the outside of the mounting base and the magnet. The Hall sensor is fixed to the outer wall of the protective shell, and the lead screw passes through the protective shell. This design effectively protects the mounting base and the magnet.

[0027] Optionally, the four corners of the first bearing housing and the four corners of the second bearing housing are fixedly connected by bolts. This method improves the stability of the riveting unit.

[0028] Optionally, a flat washer is provided between the second bearing housing and the lead screw nut, and the flat washer is fitted onto the lead screw nut. With this design, the flat washer serves to reduce vibration.

[0029] Optionally, the outer surface of the housing is provided with a hanging lug for suspending the electric riveting tool. This design allows for the suspension of the electric riveting tool.

[0030] Optionally, a lighting device is provided at the first end of the housing. This design is used to provide auxiliary lighting.

[0031] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0032] By ensuring a tight fit and connection between the various components, the overall stability of the electric riveting tool is improved, and its service life is extended.

[0033] The above description of the disclosed content and the following description of the embodiments are intended to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. Attached Figure Description

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a three-dimensional structural diagram of the electric riveting tool of this utility model;

[0036] Figure 2 This is a partial cross-sectional structural diagram of the electric riveting tool of this utility model;

[0037] Figure 3 This is a schematic diagram of the riveting unit, sleeve, and gun head unit in this utility model;

[0038] Figure 4 This is a partial cross-sectional schematic diagram of the riveting unit, sleeve, and gun head unit in this utility model;

[0039] Figure 5 This is a cross-sectional view of the riveting unit, sleeve, and gun head unit in this utility model;

[0040] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0041] Figure 7 This is a schematic diagram of the first bearing housing in this utility model;

[0042] Figure 8 This is an exploded view of a partial structure of the riveting unit in this utility model;

[0043] Figure 9 This is a cross-sectional view (a) of the sleeve in this utility model;

[0044] Figure 10 This is a cross-sectional view (II) of the sleeve in this utility model;

[0045] Figure 11 This is a schematic diagram of the sensing device in this utility model;

[0046] Figure 12 This is an exploded view of the sensing device in this utility model.

[0047] Explanation of icon numbers:

[0048] 10. Shell; 11. Lug; 12. Hook;

[0049] 20. Riveting unit; 21. Lead screw; 22. Lead screw nut; 23. Drive unit; 24. First bearing housing; 241. Positioning ring groove; 242. First seat body; 243. First needle roller bearing; 244. Surface bearing; 245. Second needle roller bearing; 25. Second bearing housing; 251. Second seat body; 252. Third needle roller bearing; 26. Drive shaft; 27. Protective shell; 28. Bolt; 29. ​​Flat washer;

[0050] 30. Gun head unit; 31. Positioning guard;

[0051] 40. Nail collecting cylinder;

[0052] 50. Sleeve; 51. Annular flange; 52. Annular protrusion;

[0053] 60. Sensing device; 61. Magnet; 62. Mounting base; 621. Positioning block; 622. Mounting rod; 623. Base; 624. Self-locking nut; 625. Shock-absorbing ring; 626. Positioning roller;

[0054] 70. Controller. Detailed Implementation

[0055] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0056] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0057] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0058] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0059] This application discloses an electric riveting tool for installing large-sized rivets.

[0060] Please see Figures 1-3 As shown, the electric riveting tool includes a housing 10, a riveting unit 20, a riveting head unit 30, a riveting cylinder 40, and a sleeve 50. The riveting head unit 30 is existing technology and will not be described in detail here.

[0061] Please see Figures 1-6 and Figure 9 As shown, the housing 10 is hollow inside. The riveting unit 20 is located inside the housing 10. The riveting unit 20 includes a lead screw 21, a lead screw nut 22, a drive device 23, a first bearing seat 24, and a second bearing seat 25. The first end and the second end of the lead screw nut 22 are rotatably mounted inside the housing 10 through the first bearing seat 24 and the second bearing seat 25, respectively. The lead screw 21 is a hollow structure, that is, an axial through hole is opened in the center of the lead screw 21. The lead screw 21 is an integral structure. The lead screw 21 passes through the lead screw nut 22 and is threadedly connected to the lead screw nut 22. The first end of the lead screw 21 passes through the first bearing seat 24 and extends into the head unit 30, and the second end of the lead screw 21 passes through the second bearing seat 25 and extends into the nail collection cylinder 40. The drive device 23 is adapted to drive the lead screw nut 22 to rotate, so that the lead screw 21 reciprocates along the axial direction of the lead screw 21. A positioning stop 31 is provided on the outer peripheral wall of the head unit 30. A positioning ring groove 241 is formed on the outer peripheral wall of the first end of the first bearing housing 24. An annular retaining edge 51 is provided on the inner edge of the first end of the sleeve 50. An annular protrusion 52 is provided on the inner edge of the second end of the sleeve 50. The annular protrusion 52 engages with the positioning ring groove 241, and the annular retaining edge 51 abuts against the two sides of the positioning retaining edge 31 on the end face of the first end of the first bearing housing 24, so that the first end of the lead screw 21 is connected and communicates with the gun head unit 30. The nail collecting cylinder 40 is detachably connected to the housing 10, and the lead screw 21 communicates with the inner cavity of the nail collecting cylinder 40.

[0062] In this design, the annular protrusion 52 engages with the positioning ring groove 241, and the annular retaining edge 51 abuts against both sides of the positioning retaining edge 31 with the first end face of the first bearing seat 24, so that the first bearing seat 24 and the gun head unit 30 are connected through the sleeve 50. This invention improves the overall stability of the electric riveting tool and extends its service life through the tight fit and connection between the riveting unit 20, the gun head unit 30, and the sleeve 50. Furthermore, compared to the traditional threaded connection between the lead screw and the discharge tube, this invention eliminates the discharge tube; the lead screw 21 is an integral structure, extending directly into the nail collection cylinder 40, with the second end of the lead screw 21 acting as the discharge tube. This effectively prevents loosening at the connection between the lead screw and the discharge tube, further improving the stability of the electric riveting tool.

[0063] In some of these embodiments, please refer to Figure 10 As shown, the annular protrusion 52 is an annular conical protrusion. The inner diameter of the annular protrusion 52 on the side closer to the lead screw nut 22 is smaller than the inner diameter of the annular protrusion 52 on the side farther from the lead screw nut 22.

[0064] In this embodiment, the drive device 23 is an integral motor, consisting of a rotor support, a motor, and a planetary reducer, which can achieve the characteristics of robust structure and large output torque.

[0065] In this embodiment, please refer to Figure 7 , Figure 8 As shown, the first bearing housing 24 includes a first housing body 242, a first needle roller bearing 243, a thrust bearing 244, and a second needle roller bearing 245. A positioning ring groove 241 is formed on the outer peripheral wall of the first end of the first housing body 242. A first mounting hole and a second mounting hole are formed on the first housing body 242. The thrust bearing 244 and the second needle roller bearing 245 are distributed along the axial direction of the lead screw 21. The outer rings of the thrust bearing 244 and the second needle roller bearing 245 are sequentially installed in the first mounting hole, and the inner rings of the thrust bearing 244 and the second needle roller bearing 245 are respectively sleeved on the lead screw nut 22. The first needle roller bearing 243 is installed in the second mounting hole.

[0066] In this embodiment, please refer to Figure 7 , Figure 8 As shown, a flat washer 29 is provided between the second bearing housing 25 and the lead screw nut 22. The flat washer 29 is fitted onto the lead screw nut 22 to provide vibration damping. Specifically, the second bearing housing 25 includes a second seat body 251 and a third needle roller bearing 252. A third mounting hole is provided on the second seat body 251. The outer ring of the third needle roller bearing 252 is installed in the third mounting hole, and the inner ring of the third needle roller bearing 252 is fitted onto the lead screw nut 22.

[0067] Furthermore, the four corners of the first bearing housing 24 and the four corners of the second bearing housing 25 are fixedly connected by bolts 28. Specifically, the four corners of the first housing 242 and the second housing 251 are fixedly connected by bolts 28.

[0068] Further, please refer to Figure 5 , Figure 8 As shown, the riveting unit 20 also includes a drive shaft 26. The drive shaft 26 is located between the lead screw nut 22 and the drive device 23. The first end of the drive shaft 26 is rotatably mounted on the first bearing seat 24. In this embodiment, the first end of the drive shaft 26 is fitted with the inner ring of the first needle roller bearing 243. A first gear and a second gear are provided on the drive shaft 26. A third gear is provided on the output shaft of the drive device 23. The first gear meshes with the outer edge of the lead screw nut 22. The second gear is located at the second end of the drive shaft 26, and the second gear meshes with the third gear. The transmission between the lead screw nut 22 and the drive device 23 is realized through the drive shaft 26.

[0069] Further, please refer to Figure 2 , Figure 4 and Figure 5 As shown, the electric riveting tool also includes a sensing device 60 and a controller 70. The sensing device 60 and controller 70 are disposed within the inner cavity of the housing 10. For details, please refer to... Figure 11 and Figure 12 As shown, the sensing device 60 includes a magnet 61, a Hall sensor, and a mounting base 62. The mounting base 62 is mounted on the lead screw 21. The mounting base 62 is located between the nail collection cylinder 40 and the second bearing seat 25. The magnet 61 is disposed on the mounting base 62. The Hall sensor is fixed inside the housing. The controller 70 is connected to the Hall sensor, and the controller 70 is adapted to control the drive device 23 to reverse or stop operation according to the interaction between the magnet 61 and the Hall sensor. The magnet 61 and the Hall sensor are existing technologies and will not be described in detail here.

[0070] In this embodiment, a trigger is provided on the housing 10. The trigger is used to trigger the controller 70, so that the controller 70 controls the drive device 23 to start and perform riveting work.

[0071] In this embodiment, the housing 10 is also provided with a mobile power supply for supplying power to the controller 70 and the drive device 23.

[0072] Furthermore, the mounting base 62 includes a positioning block 621, a mounting rod 622, a base 623, a self-locking nut 624, and two damping rings 625. The positioning block 621 is sleeved on the lead screw 21. Both ends of the mounting rod 622 pass through the positioning block 621, and the side wall of the mounting rod 622 abuts against the outer peripheral wall of the lead screw 21. The base 623 is threaded to one end of the mounting rod 622, and a damping ring 625 is provided between the base 623 and the positioning block 621. The base 623 is hollow inside, and the magnet 61 is disposed inside the base 623. The self-locking nut 624 is threaded to the other end of the mounting rod 622, and a damping ring 625 is provided between the self-locking nut 624 and the positioning block 621. By setting a shock-absorbing ring 625 between the base 623 and the positioning block 621, and between the self-locking nut 624 and the mounting rod 622, the vibration generated when the electric riveting tool breaks the rivet is reduced, the service life of the mounting base 62 is extended, and the stability of the sensing device 60 is enhanced.

[0073] Further, please refer to Figure 3 , Figure 4 As shown, the riveting unit 20 also includes a protective housing 27. The protective housing 27 is fixed to the inner cavity of the housing 10. The protective housing 27 is mounted on the second bearing seat 25. The protective housing 27 covers the outside of the mounting base 62 and the magnet 61. The Hall sensor is fixed to the outer wall of the protective housing 27. The lead screw 21 passes through the protective housing 27.

[0074] In this embodiment, the protective shell 27 is fixed to the second end of the first base 242. Specifically, the four corners of the first base 242, the second base 251, and the protective shell 27 are fixedly connected by bolts 28. The bolt 28 passes through the protective shell 27, the second base 251, and the first base 242 in sequence, and extends to the outside of the first base 242 to be threadedly connected to the corresponding nut.

[0075] In this embodiment, the mounting rod 622 is vertically arranged and passes through the positioning block 621 from bottom to top. The mounting base 62 also includes two positioning rollers 626. The two positioning rollers 626 are rotatably mounted on the left and right ends of the positioning block 621. A sliding groove is provided inside the protective shell 27. The sliding groove is arranged along the axial direction of the lead screw 21, and the positioning rollers 626 are slidably connected to the sliding groove to limit the mounting rod 622 and the lead screw 21. That is, when the driving device 23 indirectly drives the lead screw nut 22 to rotate through the transmission shaft 26, the mounting rod 622 and the lead screw 21 can only move linearly along the axial direction of the lead screw 21, and the mounting rod 622 and the lead screw 21 will not rotate, so that the operation of the riveting unit 20 is smoother.

[0076] Further, please refer to Figure 1As shown, the outer surface of the housing 10 is provided with a hanging lug 11 for suspending the electric riveting tool. The housing 10 is also provided with a hook 12 for hanging the electric riveting tool. In this embodiment, the hanging lug 11 is located at the upper end of the housing 10, and the hook 12 is located at the lower end of the housing 10.

[0077] Furthermore, a lighting device (not shown in the figure) is provided at the first end of the housing 10 to assist in lighting.

[0078] The working principle of this novel embodiment is as follows:

[0079] Insert a rivet into the gun head unit 30;

[0080] The operator triggers the controller 70 via a trigger, causing the controller 70 to start the drive unit 23. The drive unit 23 indirectly drives the lead screw nut 22 to rotate via the transmission shaft 26, causing the lead screw 21 to reciprocate along its axial direction. The lead screw 21 drives the components within the gun head unit 30 to move, thereby enabling the electric riveting tool to rivet the rivet. During this process, the magnet 61 and the Hall sensor cooperate, allowing the controller 70 to control the drive unit 23 to reverse or stop operation based on the interaction between the magnet 61 and the Hall sensor.

[0081] When the worker uses an electric riveting tool to complete a riveting operation and inserts the next rivet, the core of the previous rivet is pushed backward so that the core of the previous rivet falls into the rivet collection cylinder 40 through the axial through hole of the lead screw 21.

[0082] Once the nail collection cylinder 40 is full of nail cores, the workers remove the nail collection cylinder 40 from the housing 10 and clean the nail cores from the nail collection cylinder 40.

[0083] In summary, the electric riveting tool provided in this application improves the overall stability of the electric riveting tool and extends its service life through the tight fit and connection between the housing, riveting unit, gun head unit, nail collection cylinder and sleeve.

[0084] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An electric riveting tool, characterized in that, include: Housing (10), riveting unit (20), gun head unit (30), nail collection cylinder (40) and sleeve (50); The housing (10) is hollow inside, and the riveting unit (20) is located in the inner cavity of the housing (10); The riveting unit (20) includes: a lead screw (21), a lead screw nut (22), a drive device (23), a first bearing seat (24), and a second bearing seat (25); The first and second ends of the lead screw nut (22) are rotatably mounted in the housing (10) through the first bearing seat (24) and the second bearing seat (25), respectively; the lead screw (21) is a hollow structure, the lead screw (21) passes through the lead screw nut (22) and is connected to the lead screw nut (22); the driving device (23) is adapted to drive the lead screw nut (22) to rotate, so that the lead screw (21) reciprocates along the axial direction of the lead screw (21); The outer peripheral wall of the gun head unit (30) is provided with a positioning stop (31); the outer peripheral wall of the first end of the first bearing seat (24) is provided with a positioning ring groove (241); the inner edge of the first end of the sleeve (50) is provided with an annular stop (51), and the inner edge of the second end of the sleeve (50) is provided with an annular protrusion (52); the annular protrusion (52) is engaged with the positioning ring groove (241), and the annular stop (51) and the first end face of the first bearing seat (24) abut against the two sides of the positioning stop (31), so that the first end of the lead screw (21) is connected and communicated with the gun head unit (30); The nail collection cylinder (40) is detachably connected to the housing (10), and the second end of the lead screw (21) extends into the nail collection cylinder (40), and the lead screw (21) communicates with the inner cavity of the nail collection cylinder (40).

2. The electric riveting tool according to claim 1, characterized in that, The riveting unit (20) further includes: a drive shaft (26); The drive shaft (26) is located between the lead screw nut (22) and the drive device (23); the first end of the drive shaft (26) is rotatably mounted on the first bearing seat (24), and the drive shaft (26) is provided with a first gear and a second gear; the output shaft of the drive device (23) is provided with a third gear; The first gear meshes with the outer edge of the lead screw nut (22); the second gear is located at the second end of the transmission shaft (26), and the second gear meshes with the third gear.

3. The electric riveting tool according to claim 1, characterized in that, Also includes: Sensing device (60) and controller (70); The sensing device (60) and the controller (70) are disposed in the inner cavity of the housing (10). The sensing device (60) includes a magnet (61), a Hall sensor and a mounting base (62). The mounting base (62) is mounted on the lead screw (21), and the mounting base (62) is located between the nail collection cylinder (40) and the second bearing seat (25); the magnet (61) is disposed on the mounting base (62); The Hall sensor is fixed inside the housing (10); The controller (70) is connected to the Hall sensor, and the controller (70) is adapted to control the drive device (23) to reverse or stop operation according to the cooperation relationship between the magnet (61) and the Hall sensor.

4. The electric riveting tool according to claim 3, characterized in that, The mounting base (62) includes: a positioning block (621), a mounting rod (622), a base (623), a self-locking nut (624), and two shock-absorbing rings (625); The positioning block (621) is sleeved on the lead screw (21); The two ends of the mounting rod (622) pass through the positioning block (621), and the side wall of the mounting rod (622) abuts against the outer peripheral wall of the lead screw (21); The base (623) is threaded to one end of the mounting rod (622), and a shock-absorbing ring (625) is provided between the base (623) and the positioning block (621); the base (623) is hollow inside, and the magnet (61) is disposed inside the base (623); The self-locking nut (624) is threaded to the other end of the mounting rod (622), and a shock-absorbing ring (625) is provided between the self-locking nut (624) and the positioning block (621).

5. The electric riveting tool according to claim 3, characterized in that, The riveting unit (20) further includes: a protective shell (27); The protective shell (27) is fixed in the inner cavity of the housing (10), and the protective shell (27) is installed on the second bearing seat (25); the protective shell (27) covers the outside of the mounting seat (62) and the magnet (61), the Hall sensor is fixed on the outer wall of the protective shell (27), and the lead screw (21) passes through the protective shell (27).

6. The electric riveting tool according to claim 1, characterized in that, The four corners of the first bearing housing (24) and the four corners of the second bearing housing (25) are fixedly connected by bolts (28).

7. The electric riveting tool according to claim 1, characterized in that, A flat washer (29) is provided between the second bearing seat (25) and the lead screw nut (22), and the flat washer (29) is sleeved on the lead screw nut (22).

8. The electric riveting tool according to claim 1, characterized in that, The outer side of the housing (10) is provided with a hanging ear (11), which is used for suspending the electric riveting tool.

9. The electric riveting tool according to claim 1, characterized in that, The first end of the housing (10) is provided with a lighting device.

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