Backrest modular transformation fixture

Abstract

The utility model belongs to the technical field of clamp, especially backrest module type changeover clamp, including clamp seat, the front side of clamp seat is fixed from top to bottom in proper order with two positioning seat no.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a backrest modular change clamp. Background Technology

[0002] However, the clamps for backrest modules in related technologies still have shortcomings in use. One clamp can only clamp and fix the metal frame of the car seat for the backrest and headrest of one specification. The clamp itself is not convenient to switch effectively. When it is necessary to clamp and fix the metal frame of the car seat for another backrest and headrest, a different specification of clamp is required, which increases the investment cost of the clamp and the occupation of welding equipment resources. Therefore, we propose a backrest module-type change-of-type clamp to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned shortcomings and propose a backrest modular change fixture.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A backrest modular change fixture includes a fixture base. From top to bottom, two positioning seats 1, 2, 3 and 4 are fixedly arranged on the front side of the fixture base. From top to bottom, two pneumatic clamping mechanisms 1, two switchable pneumatic clamping mechanisms 2 and one pneumatic mechanism 3 are arranged on the fixture base. The pneumatic clamping mechanism 1 includes a cylinder 1 fixedly connected to the front side of the fixture base. A connecting arm is fixedly connected to the output shaft of the cylinder 1. An abutment plate is fixedly connected to one side of the connecting arm. From top to bottom, pressure plates 1, 2 and 3 are fixedly connected to one side of the abutment plate.

[0005] In a preferred embodiment of this invention, a pressure plate four is fixedly connected to the top of the pressure plate one, and a pressure plate five is fixedly connected to the bottom of the pressure plate two.

[0006] As a preferred embodiment of this utility model, the switching pneumatic clamping mechanism II includes a cylinder II fixedly connected to the front side of the clamping seat, a connecting block fixedly connected to the output shaft of the cylinder II, and a movable seat fixedly connected to one side of the connecting block.

[0007] As a preferred embodiment of this invention, the movable seat is slidably disposed on the front side of the clamp seat.

[0008] As a preferred embodiment of this utility model, a cylinder three is fixedly connected to the front side of the movable seat, and a pressure plate is fixedly connected to the output shaft of the cylinder three.

[0009] As a preferred embodiment of this utility model, a cylinder four is fixedly connected to the front side of the movable seat, and an abutment plate is fixedly connected to the output shaft of the cylinder four.

[0010] As a preferred embodiment of this invention, a support plate is fixedly connected to the output shaft of the fourth cylinder, and the abutment plate is fixedly connected to the top of the support plate.

[0011] As a preferred embodiment of this utility model, the pneumatic mechanism three includes a cylinder five fixedly connected to the bottom front side of the fixture seat, a drive plate fixedly connected to the output shaft of the cylinder five, mounting blocks fixedly connected to both sides of the drive plate, and a clamping plate fixedly connected to the bottom of the mounting block.

[0012] In this utility model, the backrest module type changing fixture, through the setting of two sets of positioning seats 1, 2, 3 and 4 on the left and right, facilitates the positioning and placement of two headrest modules 1 and 2 of different specifications. Since the upper structure of headrest module 1 is more complex than that of headrest module 2, a pneumatic clamping mechanism 1 is used to clamp and fix it. The cylinder 1 drives the connecting arm and the abutment plate to move inward, so that the abutment plate abuts against the outer side of headrest module 1. At the same time, through the setting of pressure plates 1, 2, 3, 4 and 5, the headrest module 1 can be effectively pressed down and fixed at various positions, improving the stability of the fixation. At the same time, the cylinder 5 drives the drive plate to move down, and the drive plate drives the two mounting blocks and the abutment plate to move down, pressing and fixing the two corners on the bottom inner wall of headrest module 1, thereby clamping and fixing headrest module 1. In this utility model, the backrest module type changing fixture, when it is necessary to clamp and fix the headrest module two, cylinder one drives the abutment plate and pressure plate assembly to move outward, and at the same time, cylinder two is activated. Cylinder two drives the connecting block and the moving seat to move inward, so that cylinder three and cylinder four can clamp the two sides of the headrest module two. Cylinder three drives the pressure plate to move inward to press and fix the headrest module two. Cylinder four drives the support plate and the abutment plate to move inward to abut and clamp the two sides of the headrest module two. Then, following the above steps, cylinder five is activated, so that the two abutment plates move down to abut and fix the two corners of the bottom inner wall of the headrest module two. This utility model has a reasonable structural design. This switchable welding fixture is applicable to the welding of metal frames of two different car seats with different backrest and headrest parts. By using a common clamping body and being able to quickly switch between a set of fixtures and welding equipment to complete the welding process, the investment cost of fixtures and the occupation of welding equipment resources are reduced, and the reliability is high. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the backrest modular change fixture proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of part A; Figure 3for Figure 1 A structural diagram of section B; Figure 4 This is a structural schematic diagram of the headrest module one of the backrest modular change fixture proposed in this utility model; Figure 5 This is a schematic diagram of the headrest module two of the backrest modular change fixture proposed in this utility model.

[0014] In the diagram: 1. Fixture base; 2. Cylinder 3; 3. Moving base; 4. Cylinder 2; 5. Cylinder 4; 6. Connecting block; 7. Support plate; 8. Abutment plate; 9. Pressure plate; 10. Headrest module 1; 11. Headrest module 2; 12. Pressure plate 2; 13. Cylinder 5; 14. Drive plate; 15. Mounting block; 16. Positioning seat 3; 17. Abutment plate; 18. Positioning seat 1; 19. Cylinder 1; 20. Connecting arm; 21. Abutment plate; 22. Pressure plate 1; 23. Pressure plate 4; 24. Positioning seat 2; 25. Pressure plate 3; 26. Pressure plate 5; 27. Positioning seat 4. Detailed Implementation

[0015] 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.

[0016] Reference Figures 1-5 A modular backrest type change fixture includes a fixture base 1. Two positioning seats 18, 24, 316, and 427 are fixedly arranged sequentially from top to bottom on the front side of the fixture base 1. Two pneumatic clamping mechanisms 1, two switchable pneumatic clamping mechanisms 2, and one pneumatic mechanism 3 are arranged sequentially from top to bottom on the fixture base 1. Each pneumatic clamping mechanism 1 includes a cylinder 19 fixedly connected to the front side of the fixture base 1. A connecting arm 20 is fixedly connected to the output shaft of the cylinder 19. An abutment plate 21 is fixedly connected to one side of the connecting arm 20. Pressure plates 1 22, 212, and 35 are fixedly connected sequentially from top to bottom on one side of the abutment plate 21. A pressure plate 4 23 is fixedly connected to the top of pressure plate 1 22, and a pressure plate 5 26 is fixedly connected to the bottom of pressure plate 22.

[0017] The above scheme is adopted: by setting up two sets of positioning seats 18, 24, 316 and 427 on the left and right sides, it is convenient to position and place two headrest modules 10 and 21 of different specifications. Since the upper structure of headrest module 10 is more complex than that of headrest module 21, a pneumatic clamping mechanism is used to clamp and fix it. The cylinder 19 drives the connecting arm 20 and the abutment plate 21 to move inward, so that the abutment plate 21 abuts against the outside of headrest module 10. At the same time, by setting up pressure plates 122, 25, 23 and 26, the headrest module 10 can be effectively pressed down and fixed at various positions, improving the stability of the fixation.

[0018] Furthermore, refer to Figure 1 The second switching pneumatic clamping mechanism includes a second cylinder 4 fixedly connected to the front side of the clamping seat 1. A connecting block 6 is fixedly connected to the output shaft of the second cylinder 4. A movable seat 3 is fixedly connected to one side of the connecting block 6. The movable seat 3 is slidably disposed on the front side of the clamping seat 1. A third cylinder 2 is fixedly connected to the front side of the movable seat 3. A pressure plate 9 is fixedly connected to the output shaft of the third cylinder 2. A fourth cylinder 5 is fixedly connected to the front side of the movable seat 3. An abutment plate 8 is fixedly connected to the output shaft of the fourth cylinder 5. A support plate 7 is fixedly connected to the output shaft of the fourth cylinder 5. The abutment plate 8 is fixedly connected to the top of the support plate 7.

[0019] Using the above scheme: When it is necessary to clamp and fix the headrest module 21, cylinder 19 drives the abutment plate 21 and the pressure plate assembly to move outward, and at the same time, cylinder 24 is activated. Cylinder 24 drives the connecting block 6 and the moving seat 3 to move inward, so that cylinder 32 and cylinder 45 can clamp the two sides of the headrest module 21. Cylinder 32 drives the pressure plate 9 to move inward to press and fix the headrest module 21. Cylinder 45 drives the support plate 7 and the abutment plate 8 to move inward to abut and clamp the two sides of the headrest module 21.

[0020] Furthermore, refer to Figure 1 and Figure 3 The pneumatic mechanism includes a cylinder 13 fixedly connected to the bottom front side of the clamp seat 1. A drive plate 14 is fixedly connected to the output shaft of the cylinder 13. Mounting blocks 15 are fixedly connected to both sides of the drive plate 14. A clamping plate 17 is fixedly connected to the bottom of the mounting block 15.

[0021] Using the above scheme: Cylinder 5 13 drives the drive plate 14 to move down, and the drive plate 14 drives the two mounting blocks 15 and the clamping plate 17 to move down, clamping and fixing the two corners on the bottom inner wall of the headrest module 10, thereby clamping and fixing the headrest module 10.

[0022] In this invention, the arrangement of two sets of positioning seats 18, 24, 316, and 427 facilitates the positioning and placement of two headrest modules 10 and 21 of different specifications. Since the upper structure of headrest module 10 is more complex than that of headrest module 21, a pneumatic clamping mechanism is used for clamping and fixing. Cylinder 19 drives the connecting arm 20 and the abutment plate 21 to move inwards, causing the abutment plate 21 to abut against the outer side of headrest module 10. Simultaneously, the arrangement of pressure plates 22, 212, 325, 423, and 526 effectively presses down and fixes the headrest module 10 at various positions, improving the stability of the fixation. At the same time, cylinder 513 drives the drive plate 14 to move downwards, which in turn drives the two mounting blocks 15 and the abutment plate. The downward movement of cylinder 17 abuts and fixes the two corners of the bottom inner wall of headrest module 10, thereby clamping and fixing headrest module 10. When it is necessary to clamp and fix headrest module 21, cylinder 19 drives the abutment plate 21 and the pressure plate group to move outward, and at the same time, cylinder 24 is activated. Cylinder 24 drives the connecting block 6 and the moving seat 3 to move inward, so that cylinder 32 and cylinder 45 can clamp the two sides of headrest module 21. Cylinder 32 drives the pressure plate 9 to move inward to press and fix headrest module 21. Cylinder 45 drives the support plate 7 and the abutment plate 8 to move inward to abut and clamp the two sides of headrest module 21. Then, following the above steps, cylinder 513 is activated, so that the two abutment plates 17 move down to abut and fix the two corners of the bottom inner wall of headrest module 21.

Claims

1. A backrest modular change fixture, characterized in that, The fixture includes a fixture base (1). From top to bottom, two positioning seats 1 (18), 2 (24), 3 (16) and 4 (27) are fixedly arranged on the front side of the fixture base (1). From top to bottom, two pneumatic clamping mechanisms 1, two switching pneumatic clamping mechanisms 2 and one pneumatic mechanism 3 are arranged on the fixture base (1). The pneumatic clamping mechanism 1 includes a cylinder 1 (19) fixedly connected to the front side of the fixture base (1). A connecting arm (20) is fixedly connected to the output shaft of the cylinder 1 (19). A stop plate (21) is fixedly connected to one side of the connecting arm (20). From top to bottom, a pressure plate 1 (22), a pressure plate 2 (12) and a pressure plate 3 (25) are fixedly connected to one side of the stop plate (21).

2. The backrest modular change fixture according to claim 1, characterized in that, The top of the first pressing plate (22) is fixedly connected to the fourth pressing plate (23), and the bottom of the second pressing plate (12) is fixedly connected to the fifth pressing plate (26).

3. The backrest modular change fixture according to claim 1, characterized in that, The switching pneumatic clamping mechanism includes a cylinder 2 (4) fixedly connected to the front side of the clamping seat (1). A connecting block (6) is fixedly connected to the output shaft of the cylinder 2 (4), and a movable seat (3) is fixedly connected to one side of the connecting block (6).

4. The backrest modular change fixture according to claim 3, characterized in that, The movable seat (3) is slidably disposed on the front side of the clamp seat (1).

5. The backrest modular change fixture according to claim 3, characterized in that, A cylinder three (2) is fixedly connected to the front side of the movable seat (3), and a pressure plate (9) is fixedly connected to the output shaft of the cylinder three (2).

6. The backrest modular change fixture according to claim 3, characterized in that, A cylinder four (5) is fixedly connected to the front side of the movable seat (3), and an abutment plate (8) is fixedly connected to the output shaft of the cylinder four (5).

7. The backrest modular change fixture according to claim 6, characterized in that, A support plate (7) is fixedly connected to the output shaft of the cylinder (5), and the abutment plate (8) is fixedly connected to the top of the support plate (7).

8. The backrest modular change fixture according to claim 1, characterized in that, The pneumatic mechanism three includes a cylinder five (13) fixedly connected to the bottom front side of the clamp seat (1). A drive plate (14) is fixedly connected to the output shaft of the cylinder five (13). Mounting blocks (15) are fixedly connected to both sides of the drive plate (14). A clamping plate (17) is fixedly connected to the bottom of the mounting block (15).

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