Automatic bending device for automobile door lock assembly

Abstract

The invention belongs to the technical field of automobile door lock assembly manufacturing, and particularly relates to an automobile door lock assembly automatic bending device which comprises a bending body and an alignment assembly arranged on the bending body and further comprises a first bending mechanism and a second bending mechanism. The second bending mechanism is arranged on the bending main body; the first bending mechanism comprises a driving assembly, a right-angle bending assembly and a limiting assembly, the driving assembly is arranged on the first bending mechanism, the right-angle bending assembly is arranged on the first bending mechanism, and the limiting assembly is arranged on the first bending mechanism; the whole process of aligning, clamping, 90-degree bending, Z-shaped bending and resetting of the rod piece can be achieved, manual operation steps are reduced, the machining time of a single piece is shortened, and the device is suitable for batch and continuous production.

Description

Technical Field

[0001] This invention belongs to the field of automotive door lock component manufacturing technology, specifically referring to an automatic bending device for automotive door lock components. Background Technology

[0002] The car door lock linkage is a key component of the car door lock system. It is a rod-shaped part used to connect the various action mechanisms of the car door lock to realize the door locking and unlocking functions. Its shape and dimensional accuracy play a vital role in the normal operation of the car door lock.

[0003] In the current manufacturing of automotive door lock links, the process of bending the components into the required shapes still has many shortcomings. Traditionally, workers must manually place the corresponding components on the bending machine and perform tedious securing operations. Furthermore, during the bending process, the machine typically only bends one end of the component first. After completing this step, the worker must remove the component from the machine, reposition and secure it, and then proceed with bending the remaining parts. Moreover, the next processing step can only begin after the bending of each automotive door lock link is completed. This piecemeal processing method consumes a significant amount of manpower and time, resulting in extremely low production rates. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes an automatic bending device for automotive door lock components.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an automatic bending device for automotive door lock components, including a bending body and an alignment component disposed on the bending body, and further including a first bending mechanism and a second bending mechanism. The first bending mechanism is disposed on the bending body, and the second bending mechanism is disposed on the bending body. The first bending mechanism includes a driving component, a right-angle bending component, and a limiting component. The driving component is disposed on the first bending mechanism, the right-angle bending component is disposed on the first bending mechanism, and the limiting component is disposed on the first bending mechanism.

[0006] Furthermore, the bending body includes a processing table, a longitudinal plate is fixedly connected to the rear top of the processing table, a transverse plate is fixedly connected to the top front side of the longitudinal plate, a lifting cylinder is installed at the top of the transverse plate, and the output end of the lifting cylinder is fixedly connected to a cavity.

[0007] Furthermore, the drive assembly includes a first device cavity, which is fixedly installed on the top of the processing table. A first motor is installed on the rear side wall of the first device cavity, and a first gear is fixedly installed on the output end of the first motor. A fourth fixed shaft is fixedly connected to the inner wall of the first device cavity, and a second gear is rotatably sleeved on the fourth fixed shaft. An arc-shaped concave hole is opened at the top of the first device cavity.

[0008] Furthermore, the right-angle bending assembly includes a fixed base, which is fixedly installed at the top of the first equipment cavity. A support frame is fixedly installed at the top of the first equipment cavity. A first notch is formed at the top of the first bending mechanism. A third fixed shaft is fixedly connected to the inner side wall of the support frame. A second roller is fixedly sleeved on the third fixed shaft. A second fixed shaft is fixedly connected to the inner side wall of the support frame. A first roller is rotatably sleeved on the second fixed shaft. The second fixed shaft is located on one side of the first notch, and the third fixed shaft is located on the other side of the first notch. One end of the support frame is rotatably connected to the first fixed shaft. One end of the first fixed shaft is fixedly connected to the side wall of the second gear. The first fixed shaft is slidably disposed in an arc-shaped concave hole.

[0009] Furthermore, the limiting component includes a U-shaped limiting member, which is fixed to the second roller by a second fixing bolt and a first fixing bolt, and a second notch is provided at the top of the U-shaped limiting member.

[0010] Furthermore, the second bending mechanism includes a symmetrical extrusion assembly, a Z-shaped bending assembly, a first fixing assembly, and a second fixing assembly. The symmetrical extrusion assembly is disposed on the second bending mechanism, the Z-shaped bending assembly is disposed on the second bending mechanism, the first fixing assembly is disposed on the second bending mechanism, and the second fixing assembly is disposed on the second bending mechanism.

[0011] Furthermore, the symmetrical extrusion assembly includes a second equipment cavity, which is fixedly installed on the top of the processing table. A fixing plate is fixedly connected to the top of the second equipment cavity. A second motor is fixedly installed on one end of the inner wall of the second equipment cavity. The output end of the second motor is fixedly connected to one end of a first lead screw. The other end of the first lead screw is fixedly connected to a second lead screw. The other end of the second lead screw is rotatably connected to the inner side wall of the second equipment cavity. The threads of the first lead screw and the second lead screw are opposite. A second sleeve is fitted onto the second lead screw. The second lead screw and the second sleeve are threaded together. A first sleeve is fitted onto the first lead screw. The first lead screw and the first sleeve are threaded together. The top end of the second sleeve is fixedly connected to one end of a first connecting rod. The top end of the first sleeve is fixedly connected to one end of a second connecting rod.

[0012] Furthermore, the Z-shaped bending assembly includes a first pressure plate, the bottom end of which is fixedly connected to the other end of a first connecting rod, a first pressure block fixedly connected to one side of the first pressure plate, a first groove formed at the lower end of the side wall of the first pressure block, the other end of the second connecting rod fixedly connected to the bottom end of a second pressure plate, a second pressure block fixedly connected to one side of the second pressure plate, and a second groove formed at the lower end of the side wall of the second pressure block.

[0013] Furthermore, the first fixing component includes a fixing column, which is fixedly connected to the top of the processing table. The top of the side wall of the fixing column is fixedly connected to the cylinder seat of the clamping cylinder. The output end of the clamping cylinder is fixedly connected to the clamping block. A clamping groove is formed on one side of the clamping block. The second fixing component and the first fixing component are symmetrically arranged.

[0014] Furthermore, the alignment assembly includes a third motor, which is mounted on one end of the outer wall of the cavity. The output end of the third motor is fixedly connected to one end of a third lead screw, and the other end of the third lead screw is fixedly connected to one end of a fourth lead screw. The other end of the fourth lead screw is rotatably connected to the inner wall of the cavity. The threads of the third and fourth lead screws are opposite. A fourth sleeve is fitted onto the fourth lead screw, and the fourth lead screw and the fourth sleeve are threaded together. The lower end of the fourth sleeve is fixedly connected to a third connecting rod, and the lower end of the third connecting rod is fixedly connected to a first alignment plate. The third sleeve is fitted onto the third lead screw, and the third lead screw and the third sleeve are threaded together. The lower end of the third sleeve is fixedly connected to a fourth connecting rod, and the lower end of the fourth connecting rod is fixedly connected to a second alignment plate.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) The alignment component is set up by using the reverse thread structure of the third screw and the fourth screw to drive the first alignment plate and the second alignment plate to move relative to each other, so that the car door lock linkage to be processed is automatically centered and aligned, avoiding manual placement deviation and improving bending accuracy and consistency.

[0017] (2) By using the first and second fixing components in conjunction with the clamping cylinder and clamping block, the rod is firmly clamped in the clamping groove, which effectively prevents the rod from shifting or shaking during the bending process and ensures that the processing process is stable and reliable.

[0018] (3) The first bending mechanism is set so that one end of the rod is bent around the fixed center and is limited by the U-shaped limiting part to ensure that the 90-degree bending angle is accurate and the forming is consistent.

[0019] (4) Through the structural design of the first and second pressure blocks, the rods gradually complete the Z-shaped bending during the extrusion process, avoiding material damage caused by one-time forced deformation and improving the forming quality.

[0020] (5) The structural design of the first and second pressure blocks changes the bending process from point contact to surface contact, reduces local stress concentration, reduces the problems of cracks, springback or uneven deformation of the rods, and improves the finished product qualification rate.

[0021] (6) This application can realize the entire process of rod alignment, clamping, 90-degree bending, Z-bending and resetting, reduce manual operation steps, shorten the processing time of a single piece, and is suitable for batch and continuous production. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of an automatic bending device for an automotive door lock assembly according to the present invention;

[0024] Figure 2 This is a schematic diagram of an automatic bending device for an automotive door lock assembly according to the present invention;

[0025] Figure 3 This is a top view of the machining table;

[0026] Figure 4 This is a top view of the first bending mechanism.

[0027] Figure 5 This is a top view of the first bending mechanism;

[0028] Figure 6 This is a schematic diagram of the right-side structure of the first bending mechanism;

[0029] Figure 7 This is a schematic diagram of the right-side structure of the symmetrical extrusion assembly;

[0030] Figure 8 This is a schematic diagram of the supporting block structure;

[0031] Figure 9 for Figure 4 Enlarged view of part A in the middle;

[0032] Figure 10 This is a top view of the car door lock linkage.

[0033] The components include: 1. Bending body; 2. First bending mechanism; 3. Second bending mechanism; 4. Alignment assembly; 5. Processing table; 6. Vertical plate; 7. Horizontal plate; 8. Lifting cylinder; 9. Cavity; 10. Drive assembly; 11. Right-angle bending assembly; 12. Limiting assembly; 13. First equipment cavity; 14. Arc-shaped concave hole; 15. First gear; 16. Second gear; 17. First motor; 18. Fixed base; 19. First fixed shaft; 20. Holding frame; 21. First notch; 22. First roller; 23. Second roller; 24. Second fixed shaft; 25. Third fixed shaft; 26. Second fixing bolt; 27. U-shaped limiting component; 28. First fixing bolt; 29. ​​Second notch; 30. Symmetrical extrusion assembly; 31. Z-shaped bending assembly. 32. First fixing component; 33. Second motor; 34. First lead screw; 35. Second lead screw; 36. First sleeve; 37. Second sleeve; 38. First connecting rod; 39. Second connecting rod; 40. First pressure plate; 41. Second pressure plate; 42. First pressure block; 43. Second pressure block; 44. First groove; 45. Second groove; 46. Fixing column; 47. Holding cylinder; 48. Holding block; 49. Holding groove; 50. Third motor; 51. Third lead screw; 52. Fourth lead screw; 53. Third sleeve; 54. Fourth sleeve; 55. Third connecting rod; 56. Fourth connecting rod; 57. First alignment plate; 58. Second alignment plate; 59. Fixing plate; 60. Fourth fixing shaft; 61. Second equipment cavity; 62. Second fixing component. Detailed Implementation

[0034] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0035] like Figures 1-10 As shown, the present invention proposes an automatic bending device for automotive door lock components, including a bending body 1 and an alignment component 4 disposed on the bending body 1, and further including a first bending mechanism 2 and a second bending mechanism 3. The first bending mechanism 2 is disposed on the bending body 1, and the second bending mechanism 3 is disposed on the bending body 1. The first bending mechanism 2 includes a driving component 10, a right-angle bending component 11, and a limiting component 12. The driving component 10 is disposed on the first bending mechanism 2, the right-angle bending component 11 is disposed on the first bending mechanism 2, and the limiting component 12 is disposed on the first bending mechanism 2.

[0036] The bending body 1 includes a processing table 5, a longitudinal plate 6, a transverse plate 7, a lifting cylinder 8, and a cavity 9. The longitudinal plate 6 is fixedly connected to the rear top of the processing table 5, the transverse plate 7 is fixedly connected to the top front of the longitudinal plate 6, the lifting cylinder 8 is installed at the top of the transverse plate 7, and the output end of the lifting cylinder 8 is fixedly connected to the cavity 9.

[0037] The drive assembly 10 includes a first device cavity 13, an arc-shaped recess 14, a first gear 15, a second gear 16, a first motor 17, and a fourth fixed shaft 60. The first device cavity 13 is fixedly installed on the top of the processing table 5. The first motor 17 is installed on the rear side wall of the first device cavity 13. The first gear 15 is fixedly installed on the output end of the first motor 17. The fourth fixed shaft 60 is fixedly connected to the inner wall of the first device cavity 13. The second gear 16 is rotatably sleeved on the fourth fixed shaft 60. The arc-shaped recess 14 is opened at the top of the first device cavity 13.

[0038] The right-angle bending assembly 11 includes a fixed base 18, a first fixed shaft 19, a support frame 20, a first notch 21, a first roller 22, a second roller 23, a second fixed shaft 24, and a third fixed shaft 25. The fixed base 18 is fixedly installed at the top of the first equipment cavity 13. The support frame 20 is fixedly installed at the top of the first equipment cavity 13. The first notch 21 is opened at the top of the first bending mechanism 2. The third fixed shaft 25 is fixedly connected to the inner side wall of the support frame 20. The second roller 23 is fixedly sleeved on the third fixed shaft 25. The second fixed shaft 24 is fixedly connected to the inner side wall of the support frame 20. The first roller 22 is rotatably sleeved on the second fixed shaft 24. The second fixed shaft 24 is located on one side of the first notch 21, and the third fixed shaft 25 is located on the other side of the first notch 21. One end of the support frame 20 is rotatably connected to the first fixed shaft 19. One end of the first fixed shaft 19 is fixedly connected to the side wall of the second gear 16. The first fixed shaft 19 is slidably disposed in the arc-shaped concave hole 14.

[0039] The limiting component 12 includes a second fixing bolt 26, a U-shaped limiting member 27, a first fixing bolt 28, and a second notch 29. The U-shaped limiting member 27 is fixed to the second roller 23 by the second fixing bolt 26 and the first fixing bolt 28. The top of the U-shaped limiting member 27 has a second notch 29.

[0040] The second bending mechanism 3 includes a symmetrical extrusion component 30, a Z-shaped bending component 31, a first fixing component 32, and a second fixing component 62. The symmetrical extrusion component 30 is disposed on the second bending mechanism 3, the Z-shaped bending component 31 is disposed on the second bending mechanism 3, the first fixing component 32 is disposed on the second bending mechanism 3, and the second fixing component 62 is disposed on the second bending mechanism 3.

[0041] The symmetrical extrusion assembly 30 includes a second motor 33, a first lead screw 34, a second lead screw 35, a first sleeve 36, a second sleeve 37, a first connecting rod 38, a second connecting rod 39, a fixing plate 59, and a second equipment cavity 61. The second equipment cavity 61 is fixedly installed on the top of the processing table 5. The top of the second equipment cavity 61 is fixedly connected to the fixing plate 59. The second motor 33 is fixedly installed on one end of the inner wall of the second equipment cavity 61. The output end of the second motor 33 is fixedly connected to one end of the first lead screw 34, and the other end of the first lead screw 34 is connected to the first lead screw 35. The second lead screw 35 is fixedly connected, and the other end of the second lead screw 35 is rotatably connected to the inner wall of the second equipment cavity 61. The threads of the first lead screw 34 and the second lead screw 35 are opposite. The second sleeve 37 is sleeved on the second lead screw 35 and the second sleeve 37 are threadedly connected. The first sleeve 36 is sleeved on the first lead screw 34 and the first sleeve 36 are threadedly connected. The top end of the second sleeve 37 is fixedly connected to one end of the first connecting rod 38, and the top end of the first sleeve 36 is fixedly connected to one end of the second connecting rod 39.

[0042] The Z-shaped bending assembly 31 includes a first pressure plate 40, a second pressure plate 41, a first pressure block 42, a second pressure block 43, a first groove 44, and a second groove 45. The bottom end of the first pressure plate 40 is fixedly connected to the other end of the first connecting rod 38. The first pressure block 42 is fixedly connected to one side of the first pressure plate 40. The first groove 44 is opened at the lower end of the side wall of the first pressure block 42. The other end of the second connecting rod 39 is fixedly connected to the bottom end of the second pressure plate 41. The second pressure block 43 is fixedly connected to one side of the second pressure plate 41. The second groove 45 is opened at the lower end of the side wall of the second pressure block 43.

[0043] The first fixing component 32 includes a fixing post 46, a holding cylinder 47, a holding block 48, and a holding groove 49. The fixing post 46 is fixedly connected to the top of the processing table 5. The cylinder seat of the holding cylinder 47 is fixedly connected to the top of the side wall of the fixing post 46. The output end of the holding cylinder 47 is fixedly connected to the holding block 48. A holding groove 49 is opened on one side of the holding block 48. The second fixing component 62 and the first fixing component 32 are symmetrically arranged.

[0044] Alignment assembly 4 includes a third motor 50, a third lead screw 51, a fourth lead screw 52, ​​a third sleeve 53, a fourth sleeve 54, a third connecting rod 55, a fourth connecting rod 56, a first alignment plate 57, and a second alignment plate 58. The third motor 50 is mounted on one end of the outer wall of the cavity 9. The output end of the third motor 50 is fixedly connected to one end of the third lead screw 51. The other end of the third lead screw 51 is fixedly connected to one end of the fourth lead screw 52. The other end of the fourth lead screw 52 is rotatably connected to the inner wall of the cavity 9. The threads of the fourth lead screw 51 and the fourth lead screw 52 are opposite. The fourth lead screw 52 is fitted with the fourth sleeve 54. The fourth lead screw 52 and the fourth sleeve 54 are threaded together. The lower end of the fourth sleeve 54 is fixedly connected to the third connecting rod 55. The lower end of the third connecting rod 55 is fixedly connected to the first alignment plate 57. The third lead screw 51 is fitted with the third sleeve 53. The third lead screw 51 and the third sleeve 53 are threaded together. The lower end of the third sleeve 53 is fixedly connected to the fourth connecting rod 56. The lower end of the fourth connecting rod 56 is fixedly connected to the second alignment plate 58.

[0045] The first pressing block 42 has a structure with a high platform on the left and a low platform on the right, and the high platform and the low platform are connected by a ramp. The second pressing block 43 has a structure with a low platform on the left and a high platform on the right, and the low platform and the high platform are connected by a ramp.

[0046] In practical use, when bending the rod to be bent, the worker first places the car door lock linkage rod into the clamping frame 20 through the first notch 21 and the second notch 29. Then, the output end of the lifting cylinder 8 moves downward, driving the cavity 9 downward. The output end of the third motor 50 rotates, driving the third lead screw 51 and the fourth lead screw 52 to rotate. The threads of the third lead screw 51 and the fourth lead screw 52 are opposite, and the fourth sleeve 54 and the third sleeve 53 move relative to each other, thereby driving the first alignment plate 57 and the second alignment plate 58 to move relative to each other, automatically aligning the rod. Then, the first alignment plate 57 and the second alignment plate 58 move relative to each other. The output ends of plate 58 and lifting cylinder 8 are reset, and then the first fixing component 32 and the second fixing component 62 are activated. The output end of the clamping cylinder 47 moves, driving the clamping block 48 to move. The clamping block 48 clamps the rod in the clamping groove 49. The output end of the first motor 17 rotates, driving the first gear 15 to rotate. The rotation of the first gear 15 drives the second gear 16 to rotate. The rotation of the second gear 16 drives the first fixed shaft 19 to rotate around the center of the second gear 16. The rotation of the first fixed shaft 19 drives the clamping frame 20 to rotate around the center of the second gear 16. The clamping frame 20 rotates. The second fixed shaft 24 rotates around the center of the second gear 16, thereby causing the first roller 22 to rotate around the center of the second gear 16, bending one end of the rod at a 90-degree angle. The U-shaped limiting member 27 limits the rod. Then, the output end of the second motor 33 rotates, driving the first lead screw 34 and the second lead screw 35 to rotate. The threads of the first lead screw 34 and the second lead screw 35 are opposite, and the second sleeve 37 and the first sleeve 36 move relative to each other, thereby driving the first pressure plate 40 and the second pressure plate 41 to move relative to each other. The first pressure block 42 and the second pressure block 43 hold the rod in place. The rod is pressed into the first groove 44 and the second groove 45. The first pressing block 42 has a high platform on the left and a low platform on the right, which are connected by a ramp. The second pressing block 43 has a low platform on the left and a high platform on the right, which are connected by a ramp. This bends one side of the rod into a Z-shape. Then the second motor 33 rotates in the opposite direction, the first pressing block 42 and the second pressing block 43 are reset, the output end of the first motor 17 rotates in the opposite direction, the first roller 22 is reset, and the processed rod is taken out. This is the overall workflow of the present invention. This step can be repeated for the next use.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic bending device for an automotive door lock assembly, comprising a bending body (1) and an alignment component (4) disposed on the bending body (1), characterized in that: It also includes a first bending mechanism (2) and a second bending mechanism (3). The first bending mechanism (2) is disposed on the bending body (1), and the second bending mechanism (3) is disposed on the bending body (1). The first bending mechanism (2) includes a driving component (10), a right-angle bending component (11), and a limiting component (12). The driving component (10) is disposed on the first bending mechanism (2), the right-angle bending component (11) is disposed on the first bending mechanism (2), and the limiting component (12) is disposed on the first bending mechanism (2). The first bending mechanism (2) is used to bend the rod to be bent at 90°. The second bending mechanism (3) includes a symmetrical extrusion component (30), a Z-shaped bending component (31), a first fixing component (32), and a second fixing component (62). The symmetrical extrusion component (30) is disposed on the second bending mechanism (3). The Z-shaped bending assembly (31) is mounted on the second bending mechanism (3), the first fixing assembly (32) is mounted on the second bending mechanism (3), the second fixing assembly (62) is mounted on the second bending mechanism (3), and the symmetrical extrusion assembly (30) includes a first connecting rod (38) and a second connecting rod (39). The Z-shaped bending assembly (31) includes a first pressure plate (40), the bottom end of the first pressure plate (40) is fixedly connected to the other end of the first connecting rod (38), one side of the first pressure plate (40) is fixedly connected to a first pressure block (42), the lower end of the side wall of the first pressure block (42) is provided with a first groove (44), the other end of the second connecting rod (39) is fixedly connected to the bottom end of the second pressure plate (41), one side of the second pressure plate (41) is fixedly connected to a second pressure block (43), the lower end of the side wall of the second pressure block (43) is provided with a second groove (45).

2. The automatic bending device for an automotive door lock assembly according to claim 1, characterized in that: The bending body (1) includes a processing table (5), a longitudinal plate (6) is fixedly connected to the rear top of the processing table (5), a horizontal plate (7) is fixedly connected to the top front side of the longitudinal plate (6), a lifting cylinder (8) is installed at the top of the horizontal plate (7), and the output end of the lifting cylinder (8) is fixedly connected to a cavity (9).

3. The automatic bending device for an automotive door lock assembly according to claim 2, characterized in that: The drive assembly (10) includes a first device cavity (13), which is fixedly installed on the top of the processing table (5). A first motor (17) is installed on the rear side wall of the first device cavity (13). A first gear (15) is fixedly installed at the output end of the first motor (17). A fourth fixed shaft (60) is fixedly connected to the inner wall of the first device cavity (13). A second gear (16) is rotatably sleeved on the fourth fixed shaft (60). An arc-shaped concave hole (14) is opened at the top of the first device cavity (13).

4. The automatic bending device for an automotive door lock assembly according to claim 3, characterized in that: The right-angle bending assembly (11) includes a fixed base (18), which is fixedly installed at the top of the first equipment cavity (13). A support frame (20) is fixedly installed at the top of the first equipment cavity (13). A first notch (21) is opened at the top of the first bending mechanism (2). A third fixed shaft (25) is fixedly connected to the inner wall of the support frame (20). A second roller (23) is fixedly sleeved on the third fixed shaft (25). A fixed roller (23) is fixed on the inner wall of the support frame (20). The second fixed shaft (24) is connected, and the first roller (22) is rotatably sleeved on the second fixed shaft (24). The second fixed shaft (24) is located on one side of the first notch (21), and the third fixed shaft (25) is located on the other side of the first notch (21). One end of the support frame (20) is rotatably connected to the first fixed shaft (19). One end of the first fixed shaft (19) is fixedly connected to the side wall of the second gear (16), and the first fixed shaft (19) is slidably located in the arc-shaped concave hole (14).

5. The automatic bending device for an automotive door lock assembly according to claim 4, characterized in that: The limiting component (12) includes a U-shaped limiting member (27), which is fixed to the second roller (23) by a second fixing bolt (26) and a first fixing bolt (28). A second notch (29) is opened at the top of the U-shaped limiting member (27).

6. The automatic bending device for an automotive door lock assembly according to claim 5, characterized in that: The symmetrical extrusion assembly (30) includes a second equipment cavity (61), which is fixedly installed on the top of the processing table (5). A fixing plate (59) is fixedly connected to the top of the second equipment cavity (61). A second motor (33) is fixedly installed on one end of the inner wall of the second equipment cavity (61). The output end of the second motor (33) is fixedly connected to one end of a first lead screw (34). The other end of the first lead screw (34) is fixedly connected to a second lead screw (35). The other end of the second lead screw (35) is rotatably connected to a second equipment. On the inner wall of cavity (61), the first lead screw (34) and the second lead screw (35) have opposite threads. The second lead screw (35) is fitted with a second sleeve (37), and the second lead screw (35) and the second sleeve (37) are threaded together. The first lead screw (34) is fitted with a first sleeve (36), and the first lead screw (34) and the first sleeve (36) are threaded together. The top end of the second sleeve (37) is fixedly connected to one end of the first connecting rod (38), and the top end of the first sleeve (36) is fixedly connected to one end of the second connecting rod (39).

7. The automatic bending device for an automotive door lock assembly according to claim 7, characterized in that: The first fixing component (32) includes a fixing column (46), which is fixedly connected to the top of the processing table (5). The top of the side wall of the fixing column (46) is fixedly connected to the cylinder seat of the holding cylinder (47). The output end of the holding cylinder (47) is fixedly connected to the holding block (48). A holding groove (49) is opened on one side of the holding block (48). The second fixing component (62) and the first fixing component (32) are symmetrically arranged.

8. The automatic bending device for an automotive door lock assembly according to claim 7, characterized in that: The alignment assembly (4) includes a third motor (50), which is mounted on one end of the outer wall of the cavity (9). The output end of the third motor (50) is fixedly connected to one end of a third lead screw (51), and the other end of the third lead screw (51) is fixedly connected to one end of a fourth lead screw (52). The other end of the fourth lead screw (52) is rotatably connected to the inner wall of the cavity (9). The threads of the third lead screw (51) and the fourth lead screw (52) are opposite. A fourth sleeve (54) is fitted onto the fourth lead screw (52). The fourth lead screw (52) and the fourth sleeve (54) are threaded together. The lower end of the fourth sleeve (54) is fixedly connected to the third connecting rod (55). The lower end of the third connecting rod (55) is fixedly connected to the first alignment plate (57). The third lead screw (51) is fitted with the third sleeve (53). The third lead screw (51) and the third sleeve (53) are threaded together. The lower end of the third sleeve (53) is fixedly connected to the fourth connecting rod (56). The lower end of the fourth connecting rod (56) is fixedly connected to the second alignment plate (58).

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