Riveting transmission device

Abstract

The invention discloses a rivet pulling transmission device which comprises a shell, a first driving module, a rotating driving module, a rotating shaft and a rivet pulling driving module. Wherein the first driving module is arranged on the shell; the input end of the rotary driving module is connected with the output end of the first driving module; one end of the rotating shaft is connected with the output end of the rotating driving module, and the other end of the rotating shaft is connected with the rivet pulling head; the input end of the riveting driving module is connected with the output end of the first driving module, the output end is connected with the riveting head, and the riveting driving module can drive the riveting head to move linearly. Rotation and linear rivet pulling actions of the rivet pulling head are achieved through a single driving mechanism, the equipment structure is simplified, the cost is reduced, the rivet pulling precision and efficiency are improved, and meanwhile energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting equipment, and particularly to a riveting transmission device. Background Art

[0002] In the riveting process of industrial manufacturing, the traditional riveting gun usually operates on the riveting nut in two steps. First, the riveting head rotates and screws into the nut and is threadedly connected to the nut; then the riveting head is driven to retreat to complete the riveting. At present, most of the existing technologies adopt a double-drive mechanism, generally a rotary motor with a cylinder or an electric cylinder, which are respectively responsible for the rotation and riveting actions of the riveting head.

[0003] This double-drive method has many deficiencies. On the one hand, the equipment structure becomes complex, increasing the volume, weight and manufacturing cost of the equipment; on the other hand, the coordinated control of multiple drive mechanisms is difficult, and it is easy to have uncoordinated actions, affecting the riveting accuracy and quality. Summary of the Invention

[0004] According to an embodiment of the present invention, there is provided a riveting transmission device, comprising: A housing; A first drive module, which is arranged on the housing; A rotation drive module, the input end of which is connected to the output end of the first drive module; A rotating shaft, one end of which is connected to the output end of the rotation drive module, and the other end is connected to the riveting head. The rotation drive module can drive the rotating shaft and the riveting head to rotate; A riveting drive module, the input end of which is connected to the output end of the first drive module, and the output end is connected to the riveting head, and can drive the riveting head to move linearly.

[0005] Further, the first drive module comprises: a servo motor, a first fixing seat, a second fixing seat, and a first transmission rod; A first driving gear is connected to the output shaft of the servo motor; The first fixing seat and the second fixing seat are respectively arranged on the housing; Both ends of the first transmission rod are rotatably arranged on the first fixing seat and the second fixing seat respectively; A first driven gear, a second driving gear, and a third driving gear are further arranged on the first transmission rod; the first driven gear meshes with the first driving gear.

[0006] Further, the rotation drive module comprises: a third fixing seat, a first positioning sleeve, a rotating disk, a second driven gear, a first driving sleeve, and a first spring; The third fixing seat is arranged on the housing; The first positioning sleeve is rotatably arranged in the third fixing seat; The rotating disk is fixedly connected to the end of the first positioning sleeve; A first limiting groove and a first driving groove are arranged in the rotating disk. The first limiting groove and the first driving groove are communicated, and a first driving block is arranged in the first driving groove; The second driven gear is sleeved on the rotating disk, meshes with the second driving gear, and can drive the rotating disk to rotate; The first driving sleeve is arranged between the rotating shaft and the rotating disk, is sleeved on the rotating shaft, and can drive the rotating shaft to rotate; A first follower block is arranged at the front end of the first driving sleeve. The first follower block is matched with the first driving block, and the first driving block can drive the first follower block to rotate; The first spring is arranged at one end inside the first positioning sleeve and is connected to the first positioning sleeve, and the other end is connected to the rear end of the first driving sleeve for the reset of the first driving sleeve.

[0007] Furthermore, a first limiting part is arranged on the first driving sleeve. The first limiting part is movably arranged in the first limiting groove to prevent the first driving sleeve from detaching from the rotating disk.

[0008] Furthermore, a polygonal groove is arranged inside the first driving sleeve. The connecting end of the rotating shaft and the first driving sleeve is of a polygonal structure. The first driving sleeve can drive the rotating shaft to rotate through the polygonal structure and can also slide relative to the rotating shaft.

[0009] Furthermore, the riveting driving module includes: a screw-nut mechanism, a third driven gear, a second driving sleeve, a second spring, a first limiting member, a third driving sleeve, a fourth driving sleeve, and a first transmission member; The nut of the screw-nut mechanism is rotatably arranged on the second fixed seat, and its screw shaft core is in a hollow state and is sleeved on the rotating shaft and the second driving sleeve; The second driving sleeve is sleeved on the rotating shaft, is movably connected to the first driving sleeve at one end and is connected to the screw at the other end; The third driven gear is sleeved on the nut and can drive the nut to rotate. The third driven gear meshes with the third driving gear; A first limiting step is further arranged inside the screw; The second spring is arranged inside the screw, is connected to the second driving sleeve at one end and is connected to the first limiting step at the other end for driving the second driving sleeve to move; The third driving sleeve is detachably connected to the end of the screw; The first limiting member is sleeved on the rotating shaft and is fixedly connected to the rotating shaft; The first limiting member is rotatably arranged inside the third driving sleeve; The fourth driving sleeve is detachably connected to the third driving sleeve; The first transmission member is T-shaped, with one end movably connected to the rotating shaft and the other end fixedly connected to the rivet head; the large head of the first transmission member is movably arranged in the fourth driving sleeve, and the fourth driving sleeve can move axially relative to the first transmission member.

[0010] Furthermore, one end of the first transmission member is provided with a polygonal groove, and the connecting end of the rotating shaft and the first transmission member is a polygonal structure, so that the rotating shaft can drive the first transmission member to rotate and can also slide relative to the first transmission member along the axial direction.

[0011] Furthermore, a second limiting portion is provided at one end of the fourth driving sleeve away from the rotating shaft, and there is a margin between the large head of the first transmission member and the second limiting portion.

[0012] Furthermore, it further includes: a guiding module, which is connected to the lead screw and can move linearly along with the lead screw.

[0013] Furthermore, the guiding module includes: a connecting block, a second limiting member and a guiding block; The connecting block is sleeved on the second driving sleeve and fixedly connected to the lead screw; The guiding block is arranged on the housing, and a guiding groove is provided on the guiding block; The upper end of the second limiting member is detachably connected to the connecting block, and the lower end is slidably arranged in the guiding groove and can reciprocate linearly along the guiding groove.

[0014] Advantages of the present invention: 1. Structural simplification: Only one first driving module is used. Through a clever mechanical transmission design, the rotation and linear riveting actions of the rivet head are realized simultaneously, avoiding the use of multiple driving mechanisms, greatly simplifying the equipment structure, reducing the equipment volume and weight, and lowering the manufacturing cost.

[0015] 2. Convenient control: A single driving source reduces the control difficulty and reduces the problem of uncoordinated actions that may occur due to the collaborative work of multiple driving mechanisms.

[0016] 3. Energy saving and high efficiency: Compared with the traditional multi-driving mechanism scheme, this device reduces energy consumption, improves the energy utilization efficiency, and at the same time improves the efficiency of the riveting work.

[0017] 4. Convenient maintenance: Most of the components are detachably connected, which is convenient for the installation, debugging and daily maintenance of the equipment, and reduces the maintenance cost.

[0018] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. Description of the Drawings

[0019] Figure 1Schematic perspective view of the riveting transmission mechanism and the riveting head according to an embodiment of the present invention; Figure 2 is Figure 1 an enlarged view of portion A of Figure 3 is Figure 1 the top view of Figure 4 is Figure 3 the sectional view taken along line A - A of Figure 5 is Figure 4 an enlarged view of portion B of Figure 6 is Figure 4 an enlarged view of portion C of Figure 7 Schematic view of the cooperation of the rotating disk, the first driving sleeve and the second driving sleeve according to an embodiment of the present invention; Figure 8 Schematic sectional view of the first driving sleeve according to an embodiment of the present invention; Figure 9 Front view of the first driving sleeve according to an embodiment of the present invention; Figure 10 Schematic structural view of the rotating shaft according to an embodiment of the present invention; Figure 11 Schematic internal structure view of the riveting transmission mechanism and the riveting head according to an embodiment of the present invention. Detailed Embodiment

[0020] Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present invention will be described in detail to further elaborate the present invention.

[0021] First, in conjunction with Figures 1 - 11 a riveting transmission device according to an embodiment of the present invention will be described, which is used in the riveting process, especially on an automated production line, and has a wide range of application scenarios.

[0022] As Figures 1 - 11 shown, the riveting transmission device of the embodiment of the present invention includes: a housing 1, Figure 1 part of the housing is removed, and only one side plate of the housing 1 is shown; a first driving module 2, and the first driving module 2 is arranged on the housing 1; a rotation driving module 3, and the input end of the rotation driving module 3 is connected to the output end of the first driving module 2; a rotating shaft 4, one end of the rotating shaft 4 is connected to the output end of the rotation driving module 3, and the other end is connected to the riveting head 7. The rotation driving module 3 can drive the rotating shaft 4 and the riveting head 7 to rotate; The riveting driving module 5, the input end of the riveting driving module 5 is connected to the output end of the first driving module 2, and the output end is connected to the riveting head 7, which can drive the riveting head 7 to move linearly.

[0023] Furthermore, as Figure 2 shown, in this embodiment, the first driving module 2 includes: a servo motor 21, a first fixing seat 22, a second fixing seat 23, and a first transmission rod 24; A first driving gear 211 is connected to the output shaft of the servo motor 21; The first fixing seat 22 and the second fixing seat 23 are respectively arranged on the housing 1; Both ends of the first transmission rod 24 are rotatably arranged on the first fixing seat 22 and the second fixing seat 23 respectively; The first transmission rod 24 is further provided with a first driven gear 241, a second driving gear 242, and a third driving gear 243; the first driven gear 241 meshes with the first driving gear 211.

[0024] By using one servo motor 21 to transmit force to the rotary driving module 3 and the riveting driving module 5 respectively, only one control source is needed, and the rotation and riveting of the riveting head 7 can be completed by one trigger, making the riveting action more coordinated and improving the working efficiency at the same time.

[0025] Furthermore, as Figure 2 、 4 、5, 7 - 9 shown, in this embodiment, the rotary driving module 3 includes: a third fixing seat 31, a first positioning sleeve 32, a rotary disk 33, a second driven gear 34, a first driving sleeve 35, and a first spring 36; The third fixing seat 31 is arranged on the housing 1; The first positioning sleeve 32 is rotatably arranged in the third fixing seat 31; The rotary disk 33 is fixedly connected to the end of the first positioning sleeve 32; A first limiting groove 331 and a first driving groove 332 are arranged in the rotary disk 33, the first limiting groove 331 and the first driving groove 332 are communicated, and a first driving block 333 is arranged in the first driving groove 332; The second driven gear 34 is sleeved on the rotary disk 33 and meshes with the second driving gear 242, which can drive the rotary disk 33 to rotate; The first driving sleeve 35 is arranged between the rotary shaft 4 and the rotary disk 33 and is sleeved on the rotary shaft 4, which can drive the rotary shaft 4 to rotate; A first follower block 351 is arranged at the front end of the first driving sleeve 35, the first follower block 351 matches the first driving block 333, and the first driving block 333 can drive the first follower block 351 to rotate; The first spring 36 is arranged at one end inside the first positioning sleeve 32 and is connected to the first positioning sleeve 32, and the other end is connected to the rear end of the first driving sleeve 35 for resetting the first driving sleeve 35.

[0026] Further, as Figure 5 , 7 As shown in FIGS. 8 to 9, in this embodiment, a first limiting portion 352 is provided on the first driving sleeve 35, and the first limiting portion 352 is movably arranged in the first limiting groove 331 to prevent the first driving sleeve 35 from detaching from the rotating disk 33.

[0027] The first driving sleeve 35 is movably arranged in the rotating disk 33. In the initial state, the first follower block 351 is located in the first driving groove 332, the first limiting portion 352 is arranged in the first limiting groove 331, the rotating disk 33 rotates, the first driving block 333 contacts the first follower block 351 to drive the first follower block 351 to rotate, and the first driving sleeve 35 rotates synchronously with the first follower block 351. When an external force pushes the first driving sleeve 35 backward, the first spring 36 is compressed until the first follower block 351 disengages from the first driving groove 332 and enters the first limiting groove 331. At this time, the rotation of the rotating disk 33 cannot drive the first driving sleeve 35 to move.

[0028] Further, as Figures 8 - 10 shown, in this embodiment, a polygonal groove 353 is provided inside the first driving sleeve 35, and the connecting end of the rotating shaft 4 and the first driving sleeve 35 is a polygonal structure 41. The first driving sleeve 35 can drive the rotating shaft 4 to rotate through the polygonal structure 41 and can also slide relative to the rotating shaft 4. When the first follower block 351 is located in the first driving groove 332, the first driving sleeve 35 rotates with the rotating disk 33 and drives the rotating shaft 4 to rotate at the same time; when the first follower block 351 retracts into the first limiting groove 331, the first driving sleeve 35 does not rotate, and the rotating shaft 4 also stops rotating at the same time.

[0029] Further, as Figure 2 , 4 As shown in FIGS. 5 and 6, in this embodiment, the riveting driving module 5 includes: a lead screw nut mechanism 51, a third driven gear 52, a second driving sleeve 53, a second spring 54, a first limiting member 55, a third driving sleeve 56, a fourth driving sleeve 57, and a first transmission member 58; The nut 511 of the lead screw nut mechanism 51 is rotatably arranged on the second fixed seat 23, and its lead screw 512 has a hollow core and is sleeved on the rotating shaft 4 and the second driving sleeve 53; The second driving sleeve 53 is sleeved on the rotating shaft 4, and relative sliding can occur between the second driving sleeve 53 and the rotating shaft 4. One end of the second driving sleeve 53 is movably connected to the first driving sleeve 35 and the other end is movably connected to the lead screw 512; The third driven gear 52 is sleeved on the nut 511 and can drive the nut 511 to rotate. The third driven gear 52 meshes with the third driving gear 243; A first limiting step 5121 is further provided inside the lead screw 512; The second spring 54 is arranged inside the lead screw 512, with one end connected to the second driving sleeve 53 and the other end connected to the first limiting step 5121, for driving the second driving sleeve 53 to move. When the lead screw 512 moves towards the rotating disc 33, the second spring 54 is compressed. The second spring 54 drives the second driving sleeve 53 to move. The second driving sleeve 53 pushes the first sleeve to move until the first follower block 351 retracts into the first limiting groove 331. After the first limiting part 352 contacts the left inner wall of the first limiting groove 331, the second driving sleeve 53 also stops moving axially. When the lead screw 512 continues to move towards the rotating disc 33, only the second spring 54 is compressed.

[0030] The third driving sleeve 56 is detachably connected to the end of the lead screw 512; The first limiting member 55 is sleeved on the rotating shaft 4 and fixedly connected to the rotating shaft 4 to prevent the rotating shaft 4 from axially moving during rotation; The first limiting member 55 is rotatably arranged inside the third driving sleeve 56; The fourth driving sleeve 57 is detachably connected to the third driving sleeve; The first transmission member 58 is T-shaped, with one end movably connected to the rotating shaft 4 and the other end fixedly connected to the riveting head 7. The large head of the first transmission member 58 is movably arranged inside the fourth driving sleeve 57, and the fourth driving sleeve 57 can move axially relative to the first transmission member 58.

[0031] Further, as Figure 6 、 10 shown, in this embodiment, a polygonal groove 582 is provided at one end of the first transmission member 58, and the connection end of the rotating shaft 4 and the first transmission member 58 is a polygonal structure 41, so that the rotating shaft 4 can drive the first transmission member 58 to rotate and can also slide relative to the first transmission member 58 along the axial direction.

[0032] Further, as Figure 6 shown, in this embodiment, a second limiting part is provided at the end of the fourth driving sleeve 57 away from the rotating shaft 4, and there is a margin between the large head of the first transmission member 58 and the second limiting part.

[0033] Further, as Figure 6 shown, in this embodiment, a third limiting part 561 is provided at the end of the third driving sleeve 56 away from the rotating shaft 4, and the first limiting member 55 is located between the lead screw 512 and the first limiting member 55.

[0034] When the servo motor 21 operates, it drives the rotating disk 33 and the screw rod 512 nut 511 mechanism 51 to move simultaneously. The rotating disk 33 drives the first driving sleeve 35 to rotate, the first sleeve drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the riveting head 7 to rotate through the first transmission member 58. At the same time, the nut 511 rotates to drive the screw rod 512 to move linearly towards the rotating disk 33, and drives the rotating shaft 4 to move linearly along with the screw rod 512 while rotating through the first limiting member 55. Since the rotating shaft 4 is movably connected to the first transmission member 58, the rotating shaft 4 only drives the first transmission member 58 to rotate, and due to the clearance between the large head of the first transmission member 58 and the second limiting portion, the second limiting portion gradually approaches the large head. Before the second limiting portion contacts the large head, the riveting head 7 rotates into the nut 511. When the second limiting portion contacts the large head or before that, the first follower block 351 enters the first limiting groove 331, the first spring 36 is compressed, and the rotating shaft 4 stops rotating. After the second limiting portion contacts the large head, it starts to drive the first transmission member 58 to move linearly towards the rotating disk 33, and the riveting head 7 moves synchronously to start the riveting work. After the riveting is completed, the servo motor 21 stops operating. Then the servo motor 21 rotates in reverse, the first follower block 351 is reset under the action of the spring force of the first spring 36, the first driving sleeve 35 drives the rotating shaft 4 to rotate under the action of the first driving block 333, and drives the riveting head 7 to withdraw from the nut 511.

[0035] Further, as Figure 2 、 11 shown, in this embodiment, it further includes: a guiding module 6, which is connected to the screw rod 512 and can move linearly along with the screw rod 512, playing a guiding role for the screw rod 512 to prevent the screw rod 512 from self-rotating.

[0036] Further, as Figure 2 shown, in this embodiment, the guiding module 6 includes: a connecting block 61, a second limiting member 62 and a guiding block 63; The connecting block 61 is sleeved on the second driving sleeve 53 and is fixedly connected to the screw rod 512; The guiding block 63 is arranged on the housing 1, and a guiding groove 631 is arranged on the guiding block 63; The upper end of the second limiting member 62 is detachably connected to the connecting block 61, and the lower end is slidably arranged in the guiding groove 631 and can move linearly back and forth along the guiding groove 631.

[0037] Working principle: When the servo motor 21 operates, it drives the rotating disk 33 and the screw rod 512 nut 511 mechanism 51 to move simultaneously. The rotating disk 33 drives the first driving sleeve 35 to rotate, the first sleeve drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the riveting head 7 to rotate through the first transmission member 58.

[0038] Meanwhile, the nut 511 rotates to drive the lead screw 512 to move linearly towards the rotating disk 33, the second spring 54 is compressed, and the lead screw 512 drives the rotating shaft 4 to move linearly along with the lead screw 512 while rotating through the first limiting member 55 and the third limiting sleeve.

[0039] Since the rotating shaft 4 is movably connected to the first transmission member 58, the rotating shaft 4 only drives the first transmission member 58 to rotate and does not drive the first transmission member 58 to move along with the lead screw 512.

[0040] Since there is a margin between the large head of the first transmission member 58 and the second limiting portion, the second limiting portion will gradually approach the large head. Before the second limiting portion contacts the large head, it will not drive the riveting head 7 to move; during this process, the riveting head 7 rotates into the nut 511.

[0041] When the second limiting portion contacts the large head or before that, since the movement of the lead screw 512 drives the second driving sleeve 53 to move towards the rotating disk 33 by compressing the second spring 54, the second driving sleeve 53 drives the first driving sleeve 35 to move, so that the first follower block 351 enters the first limiting groove 331, the first spring 36 is compressed, and the rotating shaft 4 stops rotating; after the second limiting portion contacts the large head, it starts to drive the first transmission member 58 to move linearly towards the rotating disk 33, and the riveting head 7 moves synchronously with the first transmission member 58, that is, the riveting work starts. After the riveting is completed, the servo motor 21 stops moving.

[0042] Then, the servo motor 21 rotates in reverse, and the lead screw 512 drives components such as the rotating shaft 4, the third driving sleeve 56, and the fourth driving sleeve 57 to reset. The first driving sleeve 35 resets under the action of the spring force of the first spring 36, the first follower block 351 enters the first driving groove 332, and the first driving sleeve 35 drives the rotating shaft 4 to rotate under the action of the first driving block 333, driving the riveting head 7 to withdraw from the nut 511.

[0043] Above, with reference to Figures 1 - 11 The riveting transmission device according to the embodiment of the present invention is described. The rotation and linear riveting actions of the riveting head 7 are realized through a single driving mechanism, which simplifies the equipment structure, reduces the cost, improves the riveting accuracy and efficiency, and reduces the energy consumption at the same time.

[0044] It should be noted that in this specification, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the existence of additional identical elements in the process, method, article or device including the elements.

[0045] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. A riveting transmission device, characterized in that, Comprising: A housing; A first driving module, which is arranged on the housing; A rotary driving module, the input end of which is connected to the output end of the first driving module; A rotating shaft, one end of which is connected to the output end of the rotary driving module, and the other end is connected to a riveting head, and the rotary driving module can drive the rotating shaft and the riveting head to rotate; A riveting driving module, the input end of which is connected to the output end of the first driving module, and the output end is connected to the riveting head, and can drive the riveting head to move linearly.

2. The riveting drive device according to claim 1, characterized in that, The first driving module comprises: a servo motor, a first fixing seat, a second fixing seat, and a first transmission rod; A first driving gear is connected to the output shaft of the servo motor; The first fixing seat and the second fixing seat are respectively arranged on the housing; Both ends of the first transmission rod are rotatably arranged on the first fixing seat and the second fixing seat respectively; A first driven gear, a second driving gear, and a third driving gear are further arranged on the first transmission rod; the first driven gear meshes with the first driving gear.

3. The riveting transmission device according to claim 2, wherein The rotary driving module comprises: a third fixing seat, a first positioning sleeve, a rotary disc, a second driven gear, a first driving sleeve, and a first spring; The third fixing seat is arranged on the housing; The first positioning sleeve is rotatably arranged in the third fixing seat; The rotary disc is fixedly connected to the end of the first positioning sleeve; A first limiting groove and a first driving groove are arranged in the rotary disc, the first limiting groove and the first driving groove are communicated, and a first driving block is arranged in the first driving groove; The second driven gear is sleeved on the rotary disc, meshes with the second driving gear, and can drive the rotary disc to rotate; The first driving sleeve is arranged between the rotating shaft and the rotary disc, and is sleeved on the rotating shaft, and can drive the rotating shaft to rotate; A first follower block is arranged at the front end of the first driving sleeve, the first follower block matches with the first driving block, and the first driving block can drive the first follower block to rotate; The first spring is arranged in the first positioning sleeve, one end of which is connected to the first positioning sleeve, and the other end is connected to the rear end of the first driving sleeve, and is used for the reset of the first driving sleeve.

4. The riveting transmission device according to claim 3, characterized in that, A first limiting part is arranged on the first driving sleeve, and the first limiting part is movably arranged in the first limiting groove, and is used to prevent the first driving sleeve from detaching from the rotary disc.

5. The riveting transmission device according to claim 3, wherein, A polygonal groove is arranged in the first driving sleeve, the connecting end of the rotating shaft and the first driving sleeve is of a polygonal structure, and the first driving sleeve can drive the rotating shaft to rotate through the polygonal structure and can also slide relative to the rotating shaft.

6. The riveting drive device according to claim 3, characterized in that, The riveting driving module comprises: a lead screw nut mechanism, a third driven gear, a second driving sleeve, a second spring, a first limiting member, a third driving sleeve, a fourth driving sleeve, and a first transmission member; The nut of the lead screw nut mechanism is rotatably arranged on the second fixing seat, its lead screw axis is in a hollow state, and is sleeved on the rotating shaft and the second driving sleeve; The second driving sleeve is sleeved on the rotating shaft, and is movably connected to the first driving sleeve at one end and movably connected to the lead screw at the other end; The third driven gear is sleeved on the nut and can drive the nut to rotate. The third driven gear meshes with the third driving gear; A first limiting step is further provided inside the lead screw; The second spring is arranged inside the lead screw, connected to the second driving sleeve at one end and connected to the first limiting step at the other end, and is used to drive the second driving sleeve to move; The third driving sleeve is detachably connected to the end of the lead screw; The first limiting piece is sleeved on the rotating shaft and is fixedly connected to the rotating shaft; The first limiting piece is rotatably arranged inside the third driving sleeve; The fourth driving sleeve is detachably connected to the third driving sleeve; The first transmission member is T-shaped, connected to the rotating shaft movably at one end and fixedly connected to the riveting head at the other end. The large head of the first transmission member is movably arranged inside the fourth driving sleeve, and the fourth driving sleeve can move axially relative to the first transmission member.

7. The riveting transmission device according to claim 6, characterized in that, A polygonal groove is provided at one end of the first transmission member, and the connection end of the rotating shaft and the first transmission member is of a polygonal structure, so that the rotating shaft can drive the first transmission member to rotate and can also slide relative to the first transmission member in the axial direction.

8. The riveting transmission device according to claim 6, characterized in that, A second limiting part is provided at the end of the fourth driving sleeve away from the rotating shaft, and there is a margin between the large head of the first transmission member and the second limiting part.

9. The riveting transmission device according to claim 6, wherein, It further includes: a guiding module, which is connected to the lead screw and can move linearly along with the lead screw.

10. The riveting drive device according to claim 9, characterized in that, The guiding module includes: a connecting block, a second limiting piece and a guiding block; The connecting block is sleeved on the second driving sleeve and is fixedly connected to the lead screw; The guiding block is arranged on the housing, and a guiding groove is provided on the guiding block; The upper end of the second limiting piece is detachably connected to the connecting block, and the lower end is slidably arranged in the guiding groove and can reciprocate linearly along the guiding groove.

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