Buckling device and buckling equipment

Abstract

The utility model discloses a buckling device and buckling equipment. The buckling device comprises a support, a driver, a driving gear, a driven gear ring, at least two guide rails, at least two guide fixing pieces, a sliding disc and at least two sliding blocks, the driver is fixed to the support, the driving gear is in driving connection with the driver, the driven gear ring is in transmission connection with the driving gear, the guide rails are arranged on the driven gear ring, and the sliding disc is arranged on the sliding disc. The guide fixing piece comprises a guide part and a fixing part which are connected with each other, at least part of the structure of the guide part is arranged in the guide rail, the sliding disc is fixed to the support and provided with a first through hole, the sliding disc is provided with at least two limiting sliding grooves in the circumferential direction of the first through hole, at least part of the structure of the sliding block is arranged in the limiting sliding grooves in a sliding mode, and the fixing part is fixed to the sliding block. In this way, the buckling and pressing device can improve the buckling and pressing effect and precision and reduce the reject ratio and noise.

Description

Technical Field

[0001] This application relates to the field of automotive parts production equipment, and particularly to a crimping device and a crimping equipment. Background Art

[0002] Currently, the electric tailgate of a vehicle is generally realized by installing an electric strut. The process of crimping a disc onto a rod is involved in the production of the electric strut. However, the existing crimping equipment has problems such as poor crimping effect, low crimping accuracy, high defect rate, and high noise. Summary of the Utility Model

[0003] A crimping device and a crimping equipment provided by this application can solve the problems of poor crimping effect, low crimping accuracy, high defect rate, and high noise existing in the existing crimping equipment.

[0004] To solve the above technical problems, a technical solution adopted by this application is: providing a crimping device, the crimping device includes: a bracket; a driver fixed to the bracket; a driving gear drivingly connected to the driver; a driven gear ring in transmission connection with the driving gear; at least two guide rails disposed on the driven gear ring; at least two guide fixing members, the guide fixing members include a guiding portion and a fixing portion connected to each other, at least a part of the guiding portion is disposed in the guide rail; a sliding disk fixed to the bracket, the sliding disk is provided with a first through hole, and at least two limiting sliding grooves are provided along the circumferential direction of the first through hole; at least two sliding blocks, at least a part of the sliding blocks is slidably disposed in the limiting sliding grooves, and the fixing portion is fixed to the sliding blocks; wherein, the at least two guide rails can guide the at least two guide fixing members to perform linear reciprocating motion, and further drive the at least two sliding blocks to perform linear reciprocating motion.

[0005] In one embodiment, the guide rail includes a gradually approaching end, a sliding rail, and a gradually departing end connected in sequence. When the driven gear ring rotates in a first direction such that the guiding portion slides from the gradually approaching end along the sliding rail towards the gradually departing end, the sliding block moves linearly away from the center of the first through hole; when the driven gear ring rotates in a second direction such that the guiding portion slides from the gradually departing end along the sliding rail towards the gradually approaching end, the sliding block moves linearly closer to the center of the first through hole.

[0006] In one embodiment, the shape of the guide rail is a closed smooth curve.

[0007] In one embodiment, the crimping device includes two pairs of opposing guide rails, two pairs of opposing guide fixing members, and two pairs of opposing sliders. One pair of the opposing guide rails can guide one pair of the opposing guide fixing members to move linearly back and forth, thereby driving one pair of the opposing sliders to move linearly back and forth; the other pair of the opposing guide rails can guide the other pair of the opposing guide fixing members to move linearly back and forth, thereby driving the other pair of the opposing sliders to move linearly back and forth.

[0008] In one embodiment, the crimping device further includes at least two crimping heads. One end of each crimping head is fixed to the slider, and the other end of each crimping head is provided with a crimping position.

[0009] In one embodiment, the driven gear ring is provided with an inner web, the inner web has a second through hole, the crimping device further includes a guide rail disc, the guide rail disc is fixed to a side of the inner web facing away from the sliding disc, the guide rail disc is provided with a third through hole, and the at least two guide rails are arranged along the circumference of the third through hole.

[0010] In one embodiment, the at least two guide rails include at least one pair of opposing guide rails, the at least two limiting sliding grooves include at least one pair of opposing limiting sliding grooves, the opposing guide rails are centrosymmetric about the center of the third through hole, and the opposing limiting sliding grooves are centrosymmetric about the center of the first through hole.

[0011] In one embodiment, the sliding disc includes a mounting sub-disc and a supporting sub-disc fixed to the mounting sub-disc. The first through hole penetrates through the supporting sub-disc and the mounting sub-disc, the mounting sub-disc, the supporting sub-disc, and the first through hole are coaxially arranged, and the inner web of the driven gear ring is sleeved on the supporting sub-disc through the second through hole.

[0012] In one embodiment, a plurality of hollow structures are arranged along the circumference of the second through hole on the inner web.

[0013] In one embodiment, the crimping device includes a linear bearing, and the linear bearing is arranged between the slider and the bottom of the limiting sliding groove.

[0014] In one embodiment, the crimping device further includes an end cover. The middle part of the end cover extends in a concave manner towards the guide rail disc to form a mounting portion. The mounting portion passes through the third through hole and is fixed to the sliding disc; the crimping device further includes at least two crimping heads. One end of each crimping head is fixed to the slider, and the mounting portion is provided with at least two guide grooves for guiding the linear back-and-forth movement of the crimping heads.

[0015] In one embodiment, the crimping device further includes a bearing bush. The third through hole is a stepped through hole. The bearing bush is disposed in the large hole of the stepped through hole, and the mounting portion passes through the bearing bush and the small hole of the stepped through hole.

[0016] In one embodiment, the driver is a servo motor.

[0017] In one embodiment, the crimping device further includes a position sensor fixed to the bracket. The position sensor is used to sense the position of the driven gear ring.

[0018] Another technical solution adopted by this application is: to provide a crimping device, which includes the crimping device described in any one of the above.

[0019] The beneficial effects of this application are: different from the prior art, the crimping device provided by this application includes: a bracket; a driver fixed to the bracket; a driving gear drivingly connected to the driver; a driven gear ring in transmission connection with the driving gear; at least two guide rails disposed on the driven gear ring; at least two guide fixing members, the guide fixing members including a guide portion and a fixing portion connected to each other, at least a part of the structure of the guide portion being disposed in the guide rail; a sliding plate fixed to the bracket, the sliding plate being provided with a first through hole, and at least two limiting sliding grooves being provided along the circumference of the first through hole; at least two sliding blocks, at least a part of the structure of the sliding blocks being slidably disposed in the limiting sliding grooves, and the fixing portion being fixed to the sliding blocks; wherein, the at least two guide rails can guide the at least two guide fixing members to move linearly back and forth, thereby driving the at least two sliding blocks to move linearly back and forth. In this way, the crimping device can improve the crimping effect and accuracy, and reduce the defective rate and noise. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the front view of the crimping device provided by the embodiment of this application;

[0022] Figure 2 is the right view of the crimping device provided by the embodiment of this application;

[0023] Figure 3 is the top view of the crimping device provided by the embodiment of this application;

[0024] Figure 4Is an isometric view of the crimping device provided by the embodiment of the present application;

[0025] Figure 5 Is an exploded schematic view of the crimping device provided by the embodiment of the present application;

[0026] Figure 6 Is a schematic structural view of the guiding and fixing member provided by the embodiment of the present application;

[0027] Figure 7 Is a schematic structural view of the guide rail disc provided by the embodiment of the present application;

[0028] Figure 8 Is a schematic structural view of the driven gear ring provided by the embodiment of the present application;

[0029] Figure 9 Is a schematic structural view of the sliding disc provided by the embodiment of the present application;

[0030] Figure 10 Is a schematic structural view of the end cover provided by the embodiment of the present application;

[0031] Figure 11 Is a schematic structural view of the crimping equipment provided by the embodiment of the present application.

[0032] Explanation of reference numerals:

[0033] 100 - Crimping device, 110 - Bracket, 120 - Driver, 130 - Driving gear, 140 - Driven gear ring, 141 - Inner web, 1411 - Second through hole, 1412 - Hollow structure, 150 - Guide rail disc, 151 - Guide rail, 1511 - Proximal end, 1512 - Sliding rail, 1513 - Distal end, 152 - Guiding and fixing member, 1521 - Guiding portion, 1522 - Fixing portion, 153 - Third through hole, 160 - Sliding disc, 161 - Slider, 1611 - Crimping head, 1611a - Crimping position, 162 - Linear bearing, 163 - First through hole, 164 - Limit chute, 165 - Mounting sub - disc, 166 - Support sub - disc, 170 - End cover, 171 - Mounting portion, 1711 - Guide groove, 180 - Bearing bush, 190 - Position sensor, 1000 - Crimping equipment. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Additionally, it should be noted that for the sake of description, only parts related to the present application are shown in the drawings rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] The terms "first", "second", and "third" in this application are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, then the directional indications will also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0036] Referring to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0037] The crimping device provided by this application includes: a bracket; a driver fixed to the bracket; a driving gear drivingly connected to the driver; a driven gear ring in transmission connection with the driving gear; at least two guide rails disposed on the driven gear ring; at least two guide fixing members, the guide fixing members including a guiding portion and a fixing portion connected to each other, at least a part of the structure of the guiding portion being disposed in the guide rails; a sliding disk fixed to the bracket, the sliding disk being provided with a first through hole, and at least two limiting sliding grooves being provided along the circumference of the first through hole; at least two sliding blocks, at least a part of the structure of the sliding blocks being slidably disposed in the limiting sliding grooves, and the fixing portion being fixed to the sliding blocks; wherein, the at least two guide rails can guide the at least two guide fixing members to move linearly back and forth, thereby driving the at least two sliding blocks to move linearly back and forth. In this way, the crimping device can improve the crimping effect and accuracy and reduce the defective rate and noise.

[0038] Please refer to Figures 1 - 6 and Figure 10 , Figure 1 is the front view of the crimping device provided by the embodiment of this application,Figure 2 It is the right view of the crimping device provided by the embodiment of the present application. Figure 3 It is the top view of the crimping device provided by the embodiment of the present application. Figure 4 It is the axonometric view of the crimping device provided by the embodiment of the present application. Figure 5 It is the exploded schematic diagram of the crimping device provided by the embodiment of the present application. Figure 6 It is the structural schematic diagram of the guiding and fixing member provided by the embodiment of the present application. Figure 10 It is the structural schematic diagram of the end cover provided by the embodiment of the present application. The crimping device 100 may include, but is not limited to, a bracket 110, a driver 120, a driving gear 130, a driven gear ring 140, at least two guide rails 151, at least two guiding and fixing members 152, a sliding disk 160, and at least two sliders 161. The driver 120 is fixed to the bracket 110. The driving gear 130 is drivingly connected to the driver 120. The driven gear ring 140 is in transmission connection with the driving gear 130. The guide rails 151 are arranged on the driven gear ring 140 to rotate with the rotation of the driven gear ring 140. The guiding and fixing member 152 includes a guiding portion 1521 and a fixing portion 1522 that are connected to each other. At least part of the structure of the guiding portion 1521 is arranged in the guide rail 151, so that the guiding and fixing member 152 moves under the guidance of the guide rail 151. The sliding disk 160 is fixed to the bracket 110. The sliding disk 160 is provided with a first through hole 163. The sliding disk 160 is provided with at least two limiting sliding grooves 164 along the circumference of the first through hole 163. At least part of the structure of the slider 161 is slidably arranged in the limiting sliding groove 164. The fixing portion 1522 of the guiding and fixing member 152 is fixed to the slider 161 to drive the slider 161 to slide in the limiting sliding groove 164 under the guidance of the guide rail 151. Among them, at least two guide rails 151 can guide at least two guiding and fixing members 152 to move linearly back and forth, and then drive at least two sliders 161 to move linearly back and forth.

[0039] It can be understood that the rod sleeved with the disc is generally passed through the first through hole 163 of the sliding disk 160 during processing. When at least two sliders 161 move linearly back and forth in the limiting sliding grooves 164 on the sliding disk 160, the disc can be crimped onto the rod. Since at least two sliders 161 move towards the center of the first through hole 163 at the same time to squeeze and fix the disc onto the rod, the crimping effect is better, the crimping accuracy is high, and it is beneficial to improve the crimping yield.

[0040] In this embodiment, the crimping device 100 further includes a guide rail disk 150. The guide rail disk 150 is fixed to the driven gear ring 140. The guide rail disk 150 is provided with a third through hole 153. The guide rail disk 150 is provided with at least two guide rails 151 along the circumference of the third through hole 153.

[0041] In this embodiment, the crimping device 100 includes two pairs of opposite guide rails 151, two pairs of opposite guide fixing members 152, and two pairs of opposite sliders 161. A pair of opposite guide rails 151 can guide a pair of opposite guide fixing members 152 to move linearly back and forth, thereby driving a pair of opposite sliders 161 to move linearly back and forth. The other pair of opposite guide rails 151 can guide the other pair of opposite guide fixing members 152 to move linearly back and forth, thereby driving the other pair of opposite sliders 161 to move linearly back and forth. Such a setting makes the force on the wafer more balanced when it is squeezed, which is beneficial to further improving the crimping effect, crimping accuracy, and crimping yield.

[0042] Further, the crimping device 100 further includes at least two crimping heads 1611. One end of the crimping head 1611 is fixed to the slider 161. The other end of the crimping head 1611 is provided with a crimping position 1611a. The crimping position 1611a can play a role in limiting the wafer.

[0043] In this embodiment, the crimping device 100 includes two pairs of opposite crimping heads 1611.

[0044] Further, the crimping device 100 includes a linear bearing 162. The linear bearing 162 is disposed between the slider 161 and the bottom of the limit chute 164. The linear bearing 162 can improve the accuracy of the linear reciprocating motion of the slider 161 and reduce the noise of the linear reciprocating motion of the slider 161. Therefore, the crimping accuracy can be improved and the crimping noise can be reduced.

[0045] Further, the crimping device 100 further includes an end cover 170. The middle part of the end cover 170 extends inwards to form an installation part 171. The installation part 171 passes through the third through hole 153 on the guide rail disc 150 and is fixed to the sliding disc 160. The installation part 171 is provided with at least two guide grooves 1711. The guide grooves 1711 are used to guide the linear reciprocating motion of the crimping head 1611, so as to improve the crimping accuracy.

[0046] In this embodiment, the installation part 171 includes two pairs of opposite guide grooves 1711.

[0047] Further, the crimping device 100 further includes a bearing bush 180. The third through hole 153 on the guide rail disc 150 is a stepped through hole. The bearing bush 180 is disposed in the large hole of the stepped through hole. The installation part 171 passes through the bearing bush 180 and the small hole of the stepped through hole. The setting of the bearing bush 180 can reduce the noise generated by the friction between the guide rail disc 150 and the installation part 171 when the guide rail disc 150 rotates.

[0048] Further, the crimping device 100 further includes a position sensor 190 fixed to the bracket 110. The position sensor 190 is used to sense the position of the driven gear ring 140.

[0049] Optionally, the driver 120 is a servo motor. The servo motor has the advantages of high control precision, stable operation and low noise, so it is beneficial to improve the precision, effect and yield of the snap buckle and reduce the noise of the snap buckle.

[0050] Please refer to Figures 1 - 7 , Figure 7 which is a schematic structural diagram of the guide rail disk provided by the embodiment of the present application. The guide rail 151 includes a gradually proximal end 1511, a sliding rail 1512 and a gradually distal end 1513 connected in sequence. When the driven gear ring 140 rotates in the first direction and the guiding portion 1521 slides from the gradually proximal end 1511 along the sliding rail 1512 towards the gradually distal end 1513, the slider 161 moves linearly away from the center of the first through hole 163. When the driven gear ring 140 rotates in the second direction and the guiding portion 1521 slides from the gradually distal end 1513 along the sliding rail 1512 towards the gradually proximal end 1511, the slider 161 moves linearly closer to the center of the first through hole 163.

[0051] Wherein, the first direction is one of the clockwise direction and the counterclockwise direction. The second direction is the other of the clockwise direction and the counterclockwise direction.

[0052] Furthermore, the shape of the guide rail 151 is a closed smooth curve, so that the guiding fixing member 152 moves more smoothly under the guidance of the guide rail 151, thereby facilitating the improvement of the precision, effect and yield of the snap buckle and reducing the noise of the snap buckle.

[0053] Furthermore, in one embodiment, at least two guide rails 151 are provided along the circumferential direction of the third through hole 153 of the guide rail disk 150. The at least two guide rails 151 include at least a pair of opposite guide rails 151. The opposite guide rails 151 are centrosymmetric about the center of the third through hole 153. In this embodiment, two pairs of opposite guide rails 151 are provided along the circumferential direction of the third through hole 153 of the guide rail disk 150. The opposite guide rails 151 are centrosymmetric about the center of the third through hole 153.

[0054] Please refer to Figures 1 - 5 and Figures 8 - 9 , Figure 8 which is a schematic structural diagram of the driven gear ring provided by the embodiment of the present application, Figure 9 which is a schematic structural diagram of the sliding disk provided by the embodiment of the present application. The driven gear ring 140 is provided with an inner web 141. The guide rail disk 150 is fixed to the side of the inner web 141 facing away from the sliding disk 160. The inner web 141 has a second through hole 1411. The sliding disk 160 includes a mounting sub-disk 165 and a supporting sub-disk 166 fixed to the mounting sub-disk 165. The first through hole 163 penetrates through the supporting sub-disk 166 and the mounting sub-disk 165. The mounting sub-disk 165, the supporting sub-disk 166 and the first through hole 163 are coaxially arranged. The inner web 141 of the driven gear ring 140 is sleeved on the supporting sub-disk 166 through the second through hole 1411.

[0055] Further, a plurality of hollow structures 1412 are provided along the circumferential direction of the second through hole 1411 on the inner web 141 to reduce the weight of the driven gear ring 140.

[0056] Further, in an embodiment, at least two limiting sliding grooves 164 are provided along the circumferential direction of the first through hole 163 on the sliding disk 160. The at least two limiting sliding grooves 164 include at least a pair of opposite limiting sliding grooves 164. The opposite limiting sliding grooves 164 are centrosymmetric about the center of the first through hole 163. In this embodiment, two pairs of opposite limiting sliding grooves 164 are provided along the circumferential direction of the first through hole 163 on the sliding disk 160. The opposite limiting sliding grooves 164 are centrosymmetric about the center of the first through hole 163.

[0057] The crimping device 100 provided in the present application includes: a bracket 110; a driver 120 fixed to the bracket 110; a driving gear 130 drivingly connected to the driver 120; a driven gear ring 140 drivingly connected to the driving gear 130; at least two guide rails 151 provided on the driven gear ring 140; at least two guide fixing members 152, the guide fixing members 152 including a guiding portion 1521 and a fixing portion 1522 connected to each other, at least a part of the structure of the guiding portion 1521 being disposed in the guide rail 151; a sliding disk 160 fixed to the bracket 110, the sliding disk 160 being provided with a first through hole 163, and at least two limiting sliding grooves 164 being provided along the circumferential direction of the first through hole 163 on the sliding disk 160; at least two sliding blocks 161, at least a part of the structure of the sliding blocks 161 being slidably disposed in the limiting sliding grooves 164, and the fixing portion 1522 being fixed to the sliding blocks 161; wherein, the at least two guide rails 151 can guide the at least two guide fixing members 152 to move linearly back and forth, and further drive the at least two sliding blocks 161 to move linearly back and forth. In this way, the crimping device 100 can improve the crimping effect and accuracy and reduce the defective rate and noise.

[0058] Please refer to Figure 11 , Figure 11 which is a schematic structural diagram of the crimping equipment provided by an embodiment of the present application. The crimping equipment 1000 may include, but is not limited to, the crimping device 100.

[0059] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A crimping device, characterized in that: include: Bracket; A driver, fixed to the bracket; A driving gear, drivingly connected to the driver; A driven ring gear, drivingly connected to the driving gear; At least two guide rails are arranged on the driven gear ring; At least two guide fixing members, each guide fixing member comprising a guide portion and a fixing portion connected to each other, wherein at least a part of the structure of the guide portion is disposed in the guide rail; A sliding plate, fixed to the bracket, the sliding plate is provided with a first through hole, and the sliding plate is provided with at least two limiting sliding grooves along the circumference of the first through hole; At least two sliders, at least part of the structure of the slider is slidably disposed in the limiting sliding groove, and the fixing portion is fixed to the slider; The at least two guide rails can guide the at least two guide fixing members to move back and forth linearly, thereby driving the at least two sliding blocks to move back and forth linearly.

2. The crimping device according to claim 1, characterized in that: The guide rail comprises an asymptotic end, a sliding rail and a distal end connected in sequence, and when the driven gear ring rotates in a first direction so that the guide part slides from the asymptotic end along the sliding rail toward the distal end, the slider moves linearly away from the center of the first through hole; When the driven gear ring rotates in the second direction so that the guide portion slides from the distal end along the sliding rail toward the proximal end, the sliding block moves linearly close to the center of the first through hole.

3. The crimping device according to claim 1, characterized in that: The guide rail is in the shape of a closed smooth curve.

4. The crimping device according to claim 1, characterized in that: The buckling device includes two pairs of relative guide rails, two pairs of relative guide fixing members and two pairs of relative slide blocks. The pair of relative guide rails can guide the pair of relative guide fixing members to move back and forth linearly, thereby driving the pair of relative slide blocks to move back and forth linearly. Another pair of the relative guide rails can guide another pair of the relative guide fixing members to move back and forth linearly, thereby driving another pair of the relative slide blocks to move back and forth linearly.

5. The crimping device according to claim 1, characterized in that: The crimping device further comprises at least two crimping heads, one end of each crimping head is fixed to the slider, and the other end of each crimping head is provided with a crimping position.

6. The crimping device according to claim 1, characterized in that: The driven gear ring is provided with an inner web having a second through hole. The buckling device also includes a guide rail plate, which is fixed to the side of the inner web away from the sliding plate, and is provided with a third through hole. The guide rail plate is provided with at least two guide rails along the circumference of the third through hole.

7. The crimping device according to claim 6, characterized in that: The at least two guide rails include at least one pair of relative guide rails, the at least two limiting slide grooves include at least one pair of relative limiting slide grooves, the relative guide rails are symmetrical about the center of the third through hole, and the relative limiting slide grooves are symmetrical about the center of the first through hole.

8. The crimping device according to claim 6, characterized in that: The sliding plate includes a mounting sub-plate and a supporting sub-plate fixed to the mounting sub-plate, the first through hole penetrates the supporting sub-plate and the mounting sub-plate, the mounting sub-plate, the supporting sub-plate and the first through hole are coaxially arranged, and the inner web of the driven gear ring is sleeved on the supporting sub-plate through the second through hole.

9. The crimping device according to claim 8, characterized in that: The inner web is provided with a plurality of hollow structures along the circumference of the second through hole.

10. The crimping device according to claim 8, characterized in that: The buckling device comprises a linear bearing, and the linear bearing is arranged between the sliding block and the bottom of the limiting sliding groove.

11. The crimping device according to claim 6, characterized in that: The buckling device further includes an end cover, the middle portion of which is recessed and extends toward the guide rail plate to form a mounting portion, the mounting portion is passed through the third through hole and fixed to the sliding plate; The crimping device further comprises at least two crimping heads, one end of each crimping head is fixed to the sliding block, and the mounting portion is provided with at least two guide grooves, and the guide grooves are used to guide the crimping head to move back and forth in a straight line.

12. The crimping device according to claim 11, characterized in that: The buckling device also includes a bearing shell, the third through hole is a stepped through hole, the bearing shell is arranged in the large hole of the stepped through hole, and the mounting portion is penetrated through the bearing shell and the small hole of the stepped through hole.

13. The crimping device according to claim 1, characterized in that: The driver is a servo motor.

14. The crimping device according to claim 1, characterized in that: The pressing device further comprises a position sensor fixed to the bracket, and the position sensor is used to sense the position of the driven gear ring.

15. A crimping device, characterized in that: It comprises a crimping device as described in any one of claims 1 to 14.

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