Four-way leg support assembling tool

Abstract

The utility model belongs to the technical field of seat manufacturing, particularly relates to a four-way leg support assembly tool, and provides the following scheme aiming at the problems that when an existing traditional four-way leg support is assembled, the positioning precision is difficult to guarantee, deviation is easy to occur, the assembly time is long, the efficiency is low and the like, the four-way leg support assembly tool comprises a first assembly tool, a second assembly tool and a third assembly tool, the first assembly tool comprises a first mounting plate, a first clamping mechanism and two groups of second clamping mechanisms, and the second assembly tool comprises a second mounting plate, two groups of third clamping mechanisms, two groups of fourth clamping mechanisms and a group of fifth clamping mechanism. Through cooperation of a plurality of clamping mechanisms, a plurality of to-be-assembled parts can be accurately positioned and fixed; the three tools are sequentially used according to the assembly process, a worker only needs to place the parts and operate the clamping mechanism, complex manual positioning adjustment is not needed, the assembly time is shortened, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat manufacturing technology, and in particular to a four-way leg rest assembly fixture. Background Technology

[0002] As living standards improve, the comfort and functionality of seats have become important factors for customers when making purchases. Four-way leg rests, as a key component for enhancing seat comfort, directly impact user experience through their assembly quality. The complex structure of a four-way leg rest includes multiple precision components such as an extension motor, and the assembly process of these components demands extremely high precision and stability.

[0003] Traditional four-way leg support assembly relies heavily on manual operation, requiring workers to manually position, fix, and assemble each component. On one hand, manual operation makes it difficult to guarantee the assembly precision of each component, easily leading to assembly deviations and causing problems such as jamming, abnormal noises, or even malfunctions during use. On the other hand, manual assembly is inefficient, requiring workers to spend a significant amount of time and effort to position and fix each component, increasing production costs and time.

[0004] To address the aforementioned issues, this utility model document proposes a four-way leg support assembly fixture. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of the existing technology, such as difficulty in ensuring positioning accuracy during the assembly of traditional four-way leg supports, easy deviation, and long assembly time and low efficiency. The proposed four-way leg support assembly fixture is designed to address these issues.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The four-way leg support assembly fixture includes:

[0008] The first assembly fixture includes a first mounting plate, a first clamping mechanism, and two sets of second clamping mechanisms, which are used to fix the various components of the extension motor mounting assembly and complete the assembly of the extension motor mounting assembly.

[0009] It also includes a second assembly fixture, which includes a second mounting plate, two sets of third clamping mechanisms, two sets of fourth clamping mechanisms and a set of fifth clamping mechanisms, which are used to fix the extension motor mounting assembly and other components to be assembled in order to complete the assembly of the right chair leg support linkage mounting assembly.

[0010] It also includes a third assembly fixture, which includes a fixed plate, a third mounting plate, a sixth clamping mechanism, and two sets of seventh clamping mechanisms. The third mounting plate is fixedly mounted on the fixed plate, and the top of the third mounting plate is inclined. The sixth clamping mechanism and the two sets of seventh clamping mechanisms are all located on the third mounting plate. The third assembly fixture is used to fix the right chair leg support linkage assembly and other components to be assembled, so as to complete the assembly of the right chair leg support linkage unfolding motor assembly.

[0011] In one possible design, the first assembly fixture further includes a first support seat fixedly mounted on the top of the first mounting plate. The first support seat provides placement support for the parts to be assembled. The first clamping mechanism includes a first positioning seat, a first driving unit, and a first pressure plate. The first positioning seat is fixedly mounted on the top of the first mounting plate, and a corresponding positioning protrusion is provided on the top of the first positioning seat. The first driving unit is fixedly mounted on the top of the first mounting plate. The first pressure plate is rotatably connected to the output end of the first driving unit. One end of the first pressure plate cooperates with the positioning protrusion on the top of the first positioning seat to complete the pressing and fixing of the corresponding parts. The second clamping mechanism includes a second positioning seat, a second driving unit, and a second pressure plate. The two sets of second clamping mechanisms are respectively located on both sides of the first support seat. The second positioning seat is fixedly mounted on the top of the first mounting plate, and a corresponding positioning protrusion is fixedly mounted on the top of the second positioning seat. The second driving unit is fixedly mounted on the top of the first mounting plate. The second pressure plate is rotatably connected to the output end of the second driving unit. One end of the second pressure plate cooperates with the positioning protrusion on the top of the adjacent second positioning seat to complete the pressing and fixing of the corresponding parts.

[0012] In one possible design, the second assembly fixture further includes a second support seat fixedly mounted on the top of the second mounting plate. The second support seat provides support for the parts to be assembled placed on the second mounting plate. The third clamping mechanism includes a third positioning seat, a third driving unit, and a third pressure plate. The third positioning seat is fixedly mounted on the top of the second mounting plate, and a corresponding positioning protrusion is provided on the top of the third positioning seat. The third driving unit is fixedly mounted on the top of the second mounting plate. The third pressure plate is rotatably connected to the output end of the third driving unit. One end of the third pressure plate engages with the positioning protrusion on the top of the third positioning seat to press and fix the corresponding parts. The fourth clamping mechanism includes a fourth positioning seat, a fourth driving unit, and a fourth pressure plate. The fourth positioning seat is fixedly mounted on the top of the second mounting plate, and the top of the fourth positioning seat... The fourth driving unit is fixedly installed on the top of the second mounting plate, and the fourth pressure plate is rotatably connected to the output end of the fourth driving unit. One end of the fourth pressure plate cooperates with the positioning protrusion on the top of the fourth positioning seat to press and fix the corresponding component. The fifth clamping mechanism includes a first support plate and a second support plate fixedly installed on the top of the second mounting plate. A first placement block is fixedly installed on the top of the first support plate for placing the corresponding component. The second support plate is located on one side of the first support plate, and a second placement block is fixedly installed on the top of the second support plate. A fifth driving unit is fixedly installed on one side of the second support plate via a bracket. A fifth pressure plate is rotatably installed on the output end of the fifth driving unit. The fifth pressure plate cooperates with the second placement block to press and fix the corresponding component.

[0013] In one possible design, the third assembly fixture further includes a third support fixedly mounted on the top of the third mounting plate. The third support is used to provide support for the parts to be assembled placed on the third mounting plate. The sixth clamping mechanism includes two placement frames, a sixth drive unit, and a sixth pressure plate. Both placement frames are fixedly mounted on the top of the third mounting plate. The sixth drive unit is located on one side of one of the placement frames and is fixedly mounted on the top of the third mounting plate. The sixth pressure plate is rotatably connected to the output end of the sixth drive unit. One end of the sixth pressure plate engages with the top of the adjacent placement frame to press and fix the corresponding parts. Two sets of seventh clamping mechanisms are located on both sides of the third support. Each seventh clamping mechanism includes a movable plate slidably mounted on the top of the third mounting plate. A movable seat is fixedly mounted on the top of the movable plate. Two positioning pins are fixedly mounted on the side of the movable seat near the third support. A second cylinder is fixedly mounted on the top of the third mounting plate. One end of the output shaft of the second cylinder is fixedly connected to the adjacent movable plate. The two movable seats engage to clamp and position the parts placed on the third support.

[0014] In one possible design, the first, second, third, fourth, fifth, and sixth drive units have the same structure, each consisting of a first cylinder, a mounting bracket, a connecting frame, and a connector. The mounting bracket is fixedly mounted on the top of the first cylinder, and one end of the piston rod of the first cylinder slides through the mounting bracket. The connecting frame is rotatably mounted on the top of the mounting bracket, and the connector is fixedly mounted on the top of the piston rod of the first cylinder. The connector is rotatably connected to one end of an adjacent pressure plate, and the other end of the connecting frame is rotatably connected to the outer wall of the adjacent pressure plate, so as to realize the lifting and lowering of one end of the corresponding pressure plate.

[0015] In one possible design, handles are fixedly installed on the first, second, and third assembly fixtures to facilitate the handling and movement of the respective fixtures.

[0016] In this application, during use, the user can fix the extension motor, extension motor mounting bracket, and other components onto the first assembly fixture. Through the cooperation of the first and second clamping mechanisms, multiple components can be pressed and fixed. The user can then assemble the extension motor mounting assembly on the first assembly fixture. Afterward, the user can move the assembled extension motor mounting assembly onto the second assembly fixture. With the arrangement of components such as the right chair leg support frame welding assembly, multiple components can be fixed in their respective positions on the second assembly fixture by the third, fourth, and fifth clamping mechanisms. The user can then complete the installation of the right chair leg support linkage assembly on the second assembly fixture. Next, the user can move the assembled right chair leg support linkage assembly to the third assembly fixture. With the right chair unfolding motor in place, the sixth clamping mechanism and two sets of seventh clamping mechanisms can secure the two components on the third assembly fixture. Finally, the user can assemble them on the third assembly fixture to complete the right chair leg support linkage unfolding motor assembly. The three fixtures can be used sequentially according to the seat leg support assembly process. All clamping mechanisms are driven by cylinders, making operation simple and highly efficient in positioning and installing parts. This effectively saves assembly time, improves assembly efficiency, and reduces the workload of operators.

[0017] Beneficial effects: In this utility model, the four-way leg support assembly fixture, through multiple clamping mechanisms on the first, second, and third assembly fixtures, such as the first clamping mechanism, the second clamping mechanism, and the third clamping mechanism, can accurately position and fix the extension motor mounting assembly, the right chair leg support connecting rod mounting assembly, and other components to be assembled; these clamping mechanisms are driven by cylinders, and with the design of corresponding positioning seats, the positional accuracy of the parts during the assembly process can be ensured, thereby improving the overall assembly accuracy of the four-way leg support and reducing problems caused by assembly deviations;

[0018] In this invention, the four-way leg support assembly fixture consists of three fixtures used sequentially according to the assembly process of the seat leg support, with each fixture completing a different assembly task. Workers only need to place the parts on the corresponding fixtures and operate the clamping mechanism to fix and assemble the parts, without the need for complex manual positioning and adjustment. This standardized assembly process greatly shortens the assembly time, improves the assembly efficiency, and can meet the needs of large-scale production.

[0019] In this utility model, the four-way leg support assembly fixture, through the setting of multiple clamping mechanisms, can automatically complete the fixing of parts by three fixtures, and the worker only needs to perform simple operations, which greatly reduces the workload of the operator.

[0020] In this invention, the four-way leg support assembly fixture includes three independent fixtures. Through the cooperation of multiple clamping mechanisms, driven by cylinders and in conjunction with positioning seats, it can provide precise positioning and fixation for multiple parts to be assembled, thereby improving the overall assembly accuracy. The three fixtures are used sequentially according to the assembly process, each completing a different task. Workers only need to place the parts and operate the clamping mechanisms, without the need for complex manual positioning and adjustment, which greatly shortens the assembly time, improves efficiency, and meets the needs of large-scale production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the four-way leg support assembly tooling proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the first assembly fixture structure of the four-way leg support assembly fixture proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the drive unit structure of the four-way leg support assembly tooling proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the second assembly fixture structure of the four-way leg support assembly fixture proposed in this utility model.

[0025] Figure 5 This is a schematic diagram of the fifth clamping mechanism of the four-way leg support assembly fixture proposed in this utility model.

[0026] Figure 6 This is a schematic diagram of the third assembly tooling structure of the four-way leg support assembly tooling proposed in this utility model.

[0027] Figure 7 This is a schematic diagram of the seventh clamping mechanism of the four-way leg support assembly fixture proposed in this utility model.

[0028] In the diagram: 1. First assembly fixture; 2. Second assembly fixture; 3. Third assembly fixture; 4. Extension motor mounting assembly; 5. Right chair leg support linkage mounting assembly; 6. Right chair leg support linkage unfolding motor mounting assembly; 7. First mounting plate; 8. First support seat; 9. First positioning seat; 10. First drive unit; 11. First pressure plate; 12. Second positioning seat; 13. Second drive unit; 14. Second pressure plate; 15. First cylinder; 16. Mounting bracket; 17. Connecting bracket; 18. Connector; 19. Second mounting plate; 20. Second support. 21. Third positioning seat; 22. Third drive unit; 23. Third pressure plate; 24. Fourth positioning seat; 25. Fourth drive unit; 26. Fourth pressure plate; 27. First support plate; 28. First placement block; 29. ​​Second support plate; 30. Second placement block; 31. Fifth drive unit; 32. Fifth pressure plate; 33. Fixing plate; 34. Third mounting plate; 35. Placement frame; 36. Sixth drive unit; 37. Sixth pressure plate; 38. Third support seat; 39. Moving seat; 40. Positioning pin; 41. Moving plate; 42. Second cylinder. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1: Refer to Figure 1-7 An assembly fixture, comprising: a first assembly fixture 1, a second assembly fixture 2, and a third assembly fixture 3.

[0031] In this embodiment, the first assembly fixture 1 includes a first mounting plate 7, a first clamping mechanism, and two sets of second clamping mechanisms. The first mounting plate 7 serves as the base of the entire fixture, providing a mounting foundation for other components. A first support base 8 is fixedly mounted on the top of the first mounting plate 7, and the first support base 8 is used to provide support for placing the parts to be assembled.

[0032] Furthermore, in this embodiment, the first clamping mechanism comprises a first positioning seat 9, a first driving unit 10, and a first pressure plate 11. The first positioning seat 9 is fixedly installed on the top of the first mounting plate 7, and its top is provided with a corresponding positioning protrusion for positioning the component. The first driving unit 10 is fixedly installed on the top of the first mounting plate 7, and the first pressure plate 11 is rotatably connected to the output end of the first driving unit 10. One end of the first pressure plate 11 cooperates with the positioning protrusion on the top of the first positioning seat 9. Driven by the first driving unit 10, the first pressure plate 11 can press and fix the corresponding component.

[0033] Furthermore, in this embodiment, two sets of second clamping mechanisms are located on both sides of the first support base 8. Each second clamping mechanism includes a second positioning base 12, a second driving unit 13, and a second pressure plate 14. The second positioning base 12 is fixedly installed on the top of the first mounting plate 7, and a corresponding positioning protrusion is fixedly installed on its top. The second driving unit 13 is fixedly installed on the top of the first mounting plate 7, and the second pressure plate 14 is rotatably connected to the output end of the second driving unit 13. One end of the second pressure plate 14 cooperates with the positioning protrusion on the top of the adjacent second positioning base 12 to press and fix the corresponding component.

[0034] The first assembly fixture 1 is mainly used to fix the various components of the extension motor mounting assembly 4, and to complete the assembly of the extension motor mounting assembly 4 through the coordinated action of the various components.

[0035] In this embodiment, the second assembly fixture 2 includes a second mounting plate 19, two sets of third clamping mechanisms, two sets of fourth clamping mechanisms, and one set of fifth clamping mechanisms. A second support base 20 is fixedly mounted on the top of the second mounting plate 19, and the second support base 20 is used to provide support for the parts to be assembled placed on the second mounting plate 19.

[0036] Furthermore, in this embodiment, the third clamping mechanism comprises a third positioning seat 21, a third driving unit 22, and a third pressure plate 23. The third positioning seat 21 is fixedly installed on the top of the second mounting plate 19, and its top is provided with a corresponding positioning protrusion. The third driving unit 22 is fixedly installed on the top of the second mounting plate 19, and the third pressure plate 23 is rotatably connected to the output end of the third driving unit 22. One end of the third pressure plate 23 cooperates with the positioning protrusion on the top of the third positioning seat 21 to press and fix the corresponding component.

[0037] Furthermore, in this embodiment, the fourth clamping mechanism comprises a fourth positioning seat 24, a fourth driving unit 25, and a fourth pressure plate 26. The fourth positioning seat 24 is fixedly installed on the top of the second mounting plate 19, and its top is provided with a corresponding positioning protrusion. The fourth driving unit 25 is fixedly installed on the top of the second mounting plate 19, and the fourth pressure plate 26 is rotatably connected to the output end of the fourth driving unit 25. One end of the fourth pressure plate 26 cooperates with the positioning protrusion on the top of the fourth positioning seat 24 for pressing and fixing the corresponding component.

[0038] Furthermore, in this embodiment, the fifth clamping mechanism includes a first support plate 27 and a second support plate 29 fixedly installed on the top of the second mounting plate 19. A first placement block 28 is fixedly installed on the top of the first support plate 27 for placing the corresponding component. The second support plate 29 is located on one side of the first support plate 27, and a second placement block 30 is fixedly installed on its top. A fifth driving unit 31 is fixedly installed on one side of the second support plate 29 via a bracket. A fifth pressure plate 32 is rotatably installed at the output end of the fifth driving unit 31. The fifth pressure plate 32 cooperates with the second placement block 30 to press and fix the corresponding component.

[0039] The second assembly fixture 2 is mainly used to fix the extension motor mounting assembly 4 and other components to be assembled, so as to complete the assembly and forming of the right chair leg support linkage mounting assembly 5.

[0040] In this embodiment, the third assembly fixture 3 includes a fixed plate 33, a third mounting plate 34, a sixth clamping mechanism, and two sets of seventh clamping mechanisms. The third mounting plate 34 is fixedly mounted on the fixed plate 33, and the top of the third mounting plate 34 is inclined. The sixth clamping mechanism and the two sets of seventh clamping mechanisms are all located on the third mounting plate 34. A third support base 38 is fixedly mounted on the top of the third mounting plate 34, and the third support base 38 is used to provide support for the parts to be assembled placed on the third mounting plate 34.

[0041] Furthermore, in this embodiment, the sixth clamping mechanism includes two placement frames 35, a sixth driving unit 36, and a sixth pressure plate 37. Both placement frames 35 are fixedly mounted on the top of the third mounting plate 34. The sixth driving unit 36 ​​is located on one side of one of the placement frames 35 and is fixedly mounted on the top of the third mounting plate 34. The sixth pressure plate 37 is rotatably connected to the output end of the sixth driving unit 36, and one end of the sixth pressure plate 37 engages with the top of the adjacent placement frame 35 for pressing and fixing the corresponding components.

[0042] Furthermore, in this embodiment, two sets of seventh clamping mechanisms are located on both sides of the third support base 38. Each seventh clamping mechanism includes a movable plate 41 slidably mounted on the top of the third mounting plate 34. A movable seat 39 is fixedly mounted on the top of the movable plate 41, and two positioning pins 40 are fixedly mounted on the side of the movable seat 39 closest to the third support base 38. A second cylinder 42 is fixedly mounted on the top of the third mounting plate 34, and one end of the output shaft of the second cylinder 42 is fixedly connected to the adjacent movable plate 41. The two movable seats 39 cooperate to clamp and position the components placed on the third support base 38.

[0043] The third assembly fixture 3 is mainly used to fix the right chair leg support linkage mounting assembly 5 and other components to be assembled, so as to complete the assembly and forming of the right chair leg support linkage unfolding motor mounting assembly 6.

[0044] This application can be used in the field of seat manufacturing technology, or in other fields applicable to this application.

[0045] Example 2: Reference Figure 1 , 3 An improvement based on Example 1: a four-way leg support assembly fixture, which is applied to the field of seat manufacturing technology;

[0046] In this embodiment, the first drive unit 10, the second drive unit 13, the third drive unit 22, the fourth drive unit 25, the fifth drive unit 31, and the sixth drive unit 36 ​​have the same structure, each consisting of a first cylinder 15, a mounting bracket 16, a connecting frame 17, and a connector 18. The mounting bracket 16 is fixedly mounted on the top of the first cylinder 15. One end of the piston rod of the first cylinder 15 slides through the mounting bracket 16. The connecting frame 17 is rotatably mounted on the top of the mounting bracket 16. The connector 18 is fixedly mounted on the top of the piston rod of the first cylinder 15. The connector 18 is rotatably connected to one end of the adjacent pressure plate, and the other end of the connecting frame 17 is rotatably connected to the outer wall of the adjacent pressure plate. Through the extension and retraction movement of the first cylinder 15, in conjunction with the transmission of the connecting frame 17 and the connector 18, the lifting and lowering of one end of the corresponding pressure plate can be achieved, thereby completing the pressing and fixing or releasing operation of the component.

[0047] In this embodiment, handles are fixedly installed on the first assembly fixture 1, the second assembly fixture 2, and the third assembly fixture 3 to facilitate the handling and movement of the corresponding fixtures. In actual operation, workers can easily move the fixtures to the required position by holding the handles, improving work efficiency and ease of operation.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of the first cylinder 15 and the second cylinder 42 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] The working principle and usage process of this technical solution are as follows: During use, the user can fix the extension motor, extension motor mounting bracket 16, and other components onto the first assembly fixture 1. Through the cooperation of the first and second clamping mechanisms, multiple components can be pressed and fixed. Then, the user can complete the assembly of the extension motor mounting assembly 4 on the first assembly fixture 1. Afterward, the user can move the assembled extension motor mounting assembly 4 to the second assembly fixture 2. With the arrangement of components such as the right chair leg support frame welding assembly, multiple parts can be fixed in their corresponding positions on the second assembly fixture 2 by the third, fourth, and fifth clamping mechanisms. Then, the user can complete the assembly of the right chair leg support frame on the second assembly fixture 2. The right chair leg support mounting assembly 5 is assembled. Next, the user can move the assembled right chair leg support mounting assembly 5 to the third assembly fixture 3. With the right chair unfolding motor in place, the sixth clamping mechanism and two sets of seventh clamping mechanisms can fix the two parts set on the third assembly fixture 3 accordingly. Finally, the user can assemble them on the third assembly fixture 3 to complete the forming of the right chair leg support mounting assembly 6. The three fixtures can be used sequentially according to the assembly process of the seat leg support. All clamping mechanisms are driven by cylinders, which is simple to operate and has high efficiency in positioning and installing parts. It effectively achieves the purpose of saving assembly time, improving assembly efficiency, and reducing the workload of operators.

[0050] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A four-way leg support assembly fixture, characterized in that, include: The first assembly fixture (1) includes a first mounting plate (7), a first clamping mechanism and two sets of second clamping mechanisms, which are used to fix the various parts of the extension motor mounting assembly (4) and complete the assembly of the extension motor mounting assembly (4). It also includes a second assembly fixture (2), which includes a second mounting plate (19), two sets of third clamping mechanisms, two sets of fourth clamping mechanisms and a set of fifth clamping mechanisms, which are used to fix the extension motor mounting assembly (4) and the parts to be assembled, so as to complete the assembly of the right chair leg support linkage mounting assembly (5). It also includes a third assembly fixture (3), which includes a fixed plate (33), a third mounting plate (34), a sixth clamping mechanism, and two sets of seventh clamping mechanisms. The third mounting plate (34) is fixedly mounted on the fixed plate (33). The top of the third mounting plate (34) is inclined. The sixth clamping mechanism and the two sets of seventh clamping mechanisms are all located on the third mounting plate (34). The third assembly fixture (3) is used to fix the right chair leg support linkage assembly (5) and the parts to be assembled, so as to complete the assembly of the right chair leg support linkage unfolding motor assembly (6).

2. The four-way leg support assembly fixture according to claim 1, characterized in that, The first assembly fixture (1) further includes a first support seat (8) fixedly installed on the top of the first mounting plate (7). The first support seat (8) is used to provide placement support for the parts to be assembled. The first clamping mechanism includes a first positioning seat (9), a first driving part (10), and a first pressure plate (11). The first positioning seat (9) is fixedly installed on the top of the first mounting plate (7). The top of the first positioning seat (9) is provided with a corresponding positioning protrusion. The first driving part (10) is fixedly installed on the top of the first mounting plate (7). The first pressure plate (11) is rotatably connected to the output end of the first driving part (10). One end of the first pressure plate (11) is matched with the positioning protrusion on the top of the first positioning seat (9). The two sets of the second clamping mechanisms are located on both sides of the first support base (8). The second positioning base (12) is fixedly installed on the top of the first mounting plate (7). The top of the second positioning base (12) is fixedly installed with a corresponding positioning protrusion. The second driving part (13) is fixedly installed on the top of the first mounting plate (7). The second pressure plate (14) is rotatably connected to the output end of the second driving part (13). One end of the second pressure plate (14) cooperates with the positioning protrusion on the top of the adjacent second positioning base (12) to complete the pressing and fixing of the corresponding components.

3. The four-way leg support assembly fixture according to claim 2, characterized in that, The second assembly fixture (2) further includes a second support seat (20) fixedly installed on the top of the second mounting plate (19). The second support seat (20) is used to provide support for the parts to be assembled placed on the second mounting plate (19). The third clamping mechanism includes a third positioning seat (21), a third driving part (22), and a third pressure plate (23). The third positioning seat (21) is fixedly installed on the top of the second mounting plate (19). The top of the third positioning seat (21) is provided with a corresponding positioning protrusion. The third driving part (21) is fixedly installed on the top of the second mounting plate (19). 2) Fixedly installed on the top of the second mounting plate (19), the third pressure plate (23) is rotatably connected to the output end of the third drive unit (22), and one end of the third pressure plate (23) cooperates with the positioning protrusion on the top of the third positioning seat (21) to complete the pressing and fixing of the corresponding component; the fourth clamping mechanism includes a fourth positioning seat (24), a fourth drive unit (25) and a fourth pressure plate (26), the fourth positioning seat (24) is fixedly installed on the top of the second mounting plate (19), and the top of the fourth positioning seat (24) is provided with a corresponding The positioning protrusion should be positioned. The fourth driving part (25) is fixedly installed on the top of the second mounting plate (19). The fourth pressure plate (26) is rotatably connected to the output end of the fourth driving part (25). One end of the fourth pressure plate (26) cooperates with the positioning protrusion on the top of the fourth positioning seat (24) to complete the pressing and fixing of the corresponding parts. The fifth clamping mechanism includes a first support plate (27) and a second support plate (29) fixedly installed on the top of the second mounting plate (19). A first placement block is fixedly installed on the top of the first support plate (27). (28) The first placement block (28) is used to place the corresponding component. The second support plate (29) is located on one side of the first support plate (27). The second placement block (30) is fixedly installed on the top of the second support plate (29). The fifth drive unit (31) is fixedly installed on one side of the second support plate (29) by a bracket. The output end of the fifth drive unit (31) is rotatably installed with a fifth pressure plate (32). The fifth pressure plate (32) cooperates with the second placement block (30) to press and fix the corresponding component.

4. The four-way leg support assembly fixture according to claim 3, characterized in that, The third assembly fixture (3) further includes a third support base (38) fixedly installed on the top of the third mounting plate (34). The third support base (38) is used to provide support for the parts to be assembled placed on the third mounting plate (34). The sixth clamping mechanism includes two placement frames (35), a sixth drive unit (36), and a sixth pressure plate (37). The two placement frames (35) are fixedly installed on the top of the third mounting plate (34). The sixth drive unit (36) is located on one side of one of the placement frames (35). The sixth drive unit (36) is fixedly installed on the top of the third mounting plate (34). The sixth pressure plate (37) is rotatably connected to the output end of the sixth drive unit (36). One end of the sixth pressure plate (37) is connected to... The tops of adjacent placement racks (35) cooperate to press and fix the corresponding parts; the two sets of the seventh clamping mechanisms are located on both sides of the third support base (38). The seventh clamping mechanism includes a movable plate (41) that is slidably installed on the top of the third mounting plate (34). A movable seat (39) is fixedly installed on the top of the movable plate (41). Two positioning pins (40) are fixedly installed on the side of the movable seat (39) near the third support base (38). A second cylinder (42) is fixedly installed on the top of the third mounting plate (34). One end of the output shaft of the second cylinder (42) is fixedly connected to the adjacent movable plate (41). The two movable seats (39) cooperate to clamp and position the parts placed on the third support base (38).

5. The four-way leg support assembly fixture according to claim 4, characterized in that, The first drive unit (10), the second drive unit (13), the third drive unit (22), the fourth drive unit (25), the fifth drive unit (31), and the sixth drive unit (36) have the same structure. They are all composed of a first cylinder (15), a mounting bracket (16), a connecting frame (17), and a connector (18). The mounting bracket (16) is fixedly installed on the top of the first cylinder (15). One end of the piston rod of the first cylinder (15) slides through the mounting bracket (16). The connecting frame (17) is rotatably installed on the top of the mounting bracket (16). The connector (18) is fixedly installed on the top of the piston rod of the first cylinder (15). The connector (18) is rotatably connected to one end of the adjacent pressure plate. The other end of the connecting frame (17) is rotatably connected to the outer wall of the adjacent pressure plate to realize the lifting and lowering of one end of the corresponding pressure plate.

6. The four-way leg support assembly fixture according to claim 1, characterized in that, Handles are fixedly installed on the first assembly fixture (1), the second assembly fixture (2), and the third assembly fixture (3) to facilitate the handling and movement of the corresponding fixtures.

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