Automobile seat framework welding device
By designing a welding device for car seat skeletons, using structures such as clamping plates, cylinders and positioning columns to accurately clamp and fix the side plates of the seat skeletons, the problem of poor positioning and fixing in traditional welding technology is solved, and the welding accuracy and production efficiency are improved.
Patent Information
- Application Number
- CN202421511971.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In traditional car seat skeleton welding technology, it is difficult to achieve accurate positioning and stable fixation, resulting in low welding accuracy, low efficiency and poor fixity, which increases labor costs and labor intensity for workers.
A car seat skeleton welding device is designed, including a workbench, a first clamping assembly and a second clamping assembly. Using structures such as clamping plates, cylinders and positioning columns, the precise clamping and fixing of the seat skeleton side plates is achieved to ensure stability and position accuracy during the welding process.
Through precise clamping and positioning, welding accuracy and fixity are improved, manual operation is reduced, labor costs are reduced, production efficiency and product quality are improved.
Smart Images
Figure CN222999929U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seat frame welding, and particularly relates to an automobile seat frame welding device. Background Technique
[0002] In the field of automobile manufacturing, as a key component directly contacted by passengers, the comfort, safety and durability of automobile seats are undoubtedly the common focus of automobile manufacturers and consumers. The automobile seat frame, as the basic framework supporting the entire seat structure, its stability and accuracy have a decisive impact on the quality of the entire seat. In the manufacturing process of automobile seat frames, the welding link plays a crucial role. To ensure the accuracy and quality of welding work, accurate and stable positioning is an indispensable step.
[0003] However, in traditional automobile seat frame welding technology, we face a series of challenges. Generally, each accessory of the seat frame is placed on a welding workbench, and the operator holds a welding torch to weld them one by one. However, due to the complexity and diversity of automobile seat frames, the shapes, sizes, and relative positions of the accessories are all different, which makes it particularly difficult to achieve accurate positioning during the welding process. This not only increases the difficulty of welding, reduces the welding accuracy, but also leads to low welding efficiency, as well as problems such as poor fixity of welded parts and easy displacement. These problems not only affect the overall performance and appearance of automobile seats, but also greatly increase the workload of welding workers and raise the labor cost.
[0004] Therefore, in view of the various deficiencies of traditional automobile seat frame welding technology, we need to seek a more efficient, accurate and cost-effective solution to improve the production efficiency and quality of automobile seats. Summary of the Invention
[0005] The purpose of the utility model is to provide an automobile seat frame welding device to solve the problems put forward in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] An automobile seat frame welding device includes a workbench, and a first clamping component and a second clamping component for clamping the seat frame are arranged at the upper end of the workbench; the first clamping component is used for clamping and fixing the first side plate of the seat frame, and the second clamping component is used for fixing the second side plate of the seat frame; a cross bar and a cross plate are arranged between the first side plate and the second side plate, and the cross bar and the cross plate are arranged at intervals; a first rotary clamping cylinder is arranged on one side of the workbench close to the cross bar, and a second rotary clamping cylinder is arranged on one side of the workbench close to the cross plate; the first rotary clamping cylinder is used for fixing the cross bar, and the second rotary clamping cylinder is used for fixing the cross plate.
[0008] Preferably, the first clamping assembly includes a base, the lower end of which is fixedly connected to the workbench; a first double-shaft cylinder is fixedly installed at the upper end of the base, and the front end of the piston rod of the first double-shaft cylinder is connected to a clamping plate; the clamping plate abuts against the outer wall of the first side plate, and a first positioning post is arranged on the abutting surface of the clamping plate; the first positioning post corresponds to a first mounting hole formed on the first side plate, and the first positioning post is inserted into the first mounting hole.
[0009] Preferably, a support frame is arranged on one side of the workbench close to the first clamping assembly, and a first telescopic cylinder is arranged at the upper end of the support frame; the top end of the piston rod of the first telescopic cylinder extends towards the inner wall of the first side plate and abuts against it.
[0010] Preferably, first linear slide rails are symmetrically installed on both sides of the first double-shaft cylinder, and the lower ends of the first linear slide rails are fixedly connected to the base; first sliders are symmetrically installed below both ends of the clamping plate, and the first sliders are arranged on the first linear slide rails and are slidably connected thereto.
[0011] Preferably, a first positioning cylinder and a second positioning cylinder are respectively arranged below both ends of the first side plate, and the first positioning cylinder and the second positioning cylinder are respectively fixedly connected to the workbench; a second positioning post is arranged at the top end of the piston rod of the first positioning cylinder, and the second positioning post corresponds to a second mounting hole formed below one end of the first side plate; a third positioning post is arranged at the top end of the piston rod of the second positioning cylinder, and the third positioning post corresponds to a third mounting hole formed below the other end of the first side plate.
[0012] Preferably, the second clamping assembly includes a movable plate, and a second double-shaft cylinder is arranged below the movable plate; the cylinder body of the second double-shaft cylinder is fixedly connected to the workbench, and the top end of the piston rod of the second double-shaft cylinder is fixedly connected to the side of the movable plate through a connecting member; a third double-shaft cylinder is installed at the upper end of the movable plate, and the top end of the piston rod of the third double-shaft cylinder is fixedly connected to a lifting plate; a support block is arranged at one end of the lifting plate close to the second side plate, and a fourth positioning post is arranged on the support block; the fourth positioning post corresponds to a fourth mounting hole formed at the upper end of the second side plate.
[0013] Preferably, a second telescopic cylinder is arranged at the upper end of the movable plate, and the cylinder body of the second telescopic cylinder is fixedly connected to the movable plate; the top end of the piston rod of the second telescopic cylinder extends towards the outer wall of the second side plate and abuts against it.
[0014] Preferably, a third rotary clamping cylinder is further arranged at the upper end of the movable plate, and a first pressing head is installed at the front end of the clamping arm of the third rotary clamping cylinder, and the first pressing head is arranged above the second side plate.
[0015] Preferably, a limiting bracket is provided on one side of the workbench close to the second clamping assembly, wherein the lower end of the limiting bracket is fixedly connected to the workbench; a limiting block is provided at the upper end of the limiting bracket, and the limiting block abuts against the inner wall of the second side plate.
[0016] Preferably, second linear slide rails are symmetrically installed on both sides of the second double-axis cylinder, and the lower ends of the second linear slide rails are fixedly connected to the workbench; second sliders are symmetrically installed at the lower ends of both sides of the movable plate, and the second sliders are arranged on the second linear slide rails and are slidably connected thereto.
[0017] Preferably, a support table is arranged side by side on one side of the first rotary clamping cylinder, and the support table is arranged below the cross bar; a pressing block is provided at the front end of the clamping arm of the first rotary clamping cylinder, and the pressing block is arranged above the support table; a limiting groove adapted to the cross bar is formed at the upper end of the support table, and an arc-shaped pressing groove adapted to the surface of the cross bar is formed at the lower end of the pressing block.
[0018] Preferably, auxiliary support plates are respectively arranged on both sides of the support table, and a supporting groove is formed at the upper end of the auxiliary support plate.
[0019] Preferably, there are two second rotary clamping cylinders, and the two second rotary clamping cylinders are arranged side by side; a second pressing head is provided at the front end of the clamping arm of the second rotary clamping cylinder, and the second pressing head is arranged above the cross plate.
[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the combined use of the first clamping assembly and the second clamping assembly, the first side plate and the second side plate of the seat frame can be accurately clamped and fixed, ensuring the stability and position accuracy of the frame during the welding process, thereby improving the welding precision; the combined use of the positioning posts and the mounting holes in the first clamping assembly and the second clamping assembly, and the fixation of the cross bar and the cross plate by the rotary clamping cylinder significantly enhance the fixation of the welded parts, avoiding displacement during the welding process and ensuring the welding quality; through mechanized and automated clamping and welding operations, the participation of manual operations is reduced, the labor cost is lowered, and at the same time, the labor intensity of workers is alleviated, the welding speed is increased, and the overall production efficiency is improved; by adopting the design of telescopic and slidable clamping plates and movable plates, and the adaptability design for seat frames of different sizes and shapes, the welding device has strong flexibility and versatility, significantly improving the production efficiency and production quality of automotive seats. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural diagram of the connection between the automotive seat frame welding device of the present utility model and the seat frame;
[0022] Figure 2 is a left-view structural diagram of the automotive seat frame welding device of the present utility model;
[0023] Figure 3 It is a right - view structural schematic diagram of the welding device for the automobile seat frame of the present utility model.
[0024] Among them: 1. Workbench; 2. Seat frame; 201. First side plate; 202. Second side plate; 203. Cross bar; 204. Cross plate; 3. First clamping assembly; 301. Base; 302. First double - axis cylinder; 303. Clamping plate; 304. First linear slide rail; 305. First slider; 4. Second clamping assembly; 401. Movable plate; 402. Second double - axis cylinder; 403. Connecting piece; 404. Second linear slide rail; 405. Second slider; 406. Third double - axis cylinder; 407. Lifting plate; 408. Support block; 409. Second telescopic cylinder; 5. First rotary clamping cylinder; 6. Second rotary clamping cylinder; 7. First positioning column; 8. Support frame; 9. First telescopic cylinder; 10. First positioning cylinder; 11. Second positioning cylinder; 12. Second positioning column; 13. Third positioning column; 14. Fourth positioning column; 15. Limit support; 16. Limit block; 17. Third rotary clamping cylinder; 18. First pressing head; 19. Support table; 20. Pressing block; 21. Limit groove; 22. Arc - shaped extrusion groove; 23. Auxiliary support plate; 24. Supporting groove; 25. Second pressing head. Specific implementation mode
[0025] The following further elaborates on the present utility model in conjunction with the attached drawings.
[0026] Please refer to Figures 1 to 3 For achieving the above - mentioned purpose, the present utility model provides the following technical solutions:
[0027] An automobile seat - frame welding device includes a workbench 1. The upper end of the workbench 1 is provided with a first clamping assembly 3 and a second clamping assembly 4 for clamping the seat frame 2. The first clamping assembly 3 is used for clamping and fixing the first side plate 201 of the seat frame 2, and the second clamping assembly 4 is used for fixing the second side plate 202 of the seat frame 2. A cross bar 203 and a cross plate 204 are arranged between the first side plate 201 and the second side plate 202, and the cross bar 203 and the cross plate 204 are arranged at intervals. A first rotary clamping cylinder 5 is arranged on one side of the workbench 1 close to the cross bar 203, and a second rotary clamping cylinder 6 is arranged on one side of the workbench 1 close to the cross plate 204. The first rotary clamping cylinder 5 is used for fixing the cross bar 203, and the second rotary clamping cylinder 6 is used for fixing the cross plate 204.
[0028] By placing the first side plate 201 and the second side plate 202 of the seat frame 2 at predetermined positions on the workbench 1 respectively, the first clamping assembly 3 and the second clamping assembly 4 start to work and clamp the first side plate 201 and the second side plate 202 simultaneously, ensuring that the first side plate 201 and the second side plate 202 remain fixed during the welding process; the cross bar 203 and the cross plate 204 of the seat frame 2 are placed between the first side plate 201 and the second side plate 202, thereby ensuring the correct relative positions between the cross bar 203 and the cross plate 204 and the first side plate 201 and the second side plate 202, and the cross bar 203 and the cross plate 204 are arranged at intervals, meeting the design requirements. If necessary, the staff can make fine adjustments to ensure the accurate positions of all components; the first rotary clamping cylinder 5 is used to control the clamping arm to move above the cross bar 203 and firmly clamp the cross bar 203 to prevent it from moving or deforming during the welding process; at the same time, the second rotary clamping cylinder 6 controls the clamping arm to move above the cross plate 204 and performs a clamping and fixing operation on the cross plate 204 to ensure the stability of the cross plate 204 during welding.
[0029] Please refer to Figure 2 、 Figure 3 As an embodiment of the present utility model, the first clamping assembly 3 includes a base 301, wherein the lower end of the base 301 is fixedly connected to the workbench 1; a first double-axis cylinder 302 is fixedly installed at the upper end of the base 301, and a clamping plate 303 is connected to the front end of the piston rod of the first double-axis cylinder 302; the clamping plate 303 abuts against the outer wall of the first side plate 201, and a first positioning post 7 is provided on the abutting surface of the clamping plate 303; the first positioning post 7 corresponds to a first mounting hole opened on the first side plate 201, and the first positioning post 7 is inserted into the first mounting hole; a support frame 8 is provided on one side of the workbench 1 close to the first clamping assembly 3, and a first telescopic cylinder 9 is provided at the upper end of the support frame 8; the top end of the piston rod of the first telescopic cylinder 9 extends towards the inner wall of the first side plate 201 and abuts against it; first linear slide rails 304 are symmetrically installed on both sides of the first double-axis cylinder 302, and the lower ends of the first linear slide rails 304 are fixedly connected to the base 301; first sliders 305 are symmetrically installed below both ends of the clamping plate 303, and the first sliders 305 are arranged on the first linear slide rails 304 and are slidably connected thereto.
[0030] In the above-described solution, in the initial state, the first clamping assembly 3 is located on the workbench 1, where the base 301 is fixedly connected to the workbench 1 to ensure the stability of the first clamping assembly 3; the first double-axis cylinder 302 is in a contracted state, there is a certain distance between the clamping plate 303 and the first side plate 201, and the piston rod of the first telescopic cylinder 9 is also in a contracted state, so that the top of its piston rod does not contact the inner wall of the first side plate 201; for clamping preparation, by placing the first side plate 201 of the seat frame 2 at a predetermined position on the workbench 1, ensuring that the first mounting hole is aligned with the first positioning post 7; by controlling the first double-axis cylinder 302 to drive its piston rod to extend forward, so that the piston rod pushes the clamping plate 303 to move toward the first side plate 201; as the clamping plate 303 gradually approaches the first side plate 201 and abuts against its outer wall, the cooperation between the first positioning post 7 provided on the clamping plate 303 and the first mounting hole ensures the positioning of the first side plate 201 in the horizontal direction; at the same time, the piston rod of the first telescopic cylinder 9 also starts to extend, and its top abuts against the inner wall of the first side plate 201, providing additional support and fixation for the first side plate 201; under the combined action of the first double-axis cylinder 302 and the first telescopic cylinder 9, the first side plate 201 is firmly clamped on the workbench 1; the design of the first linear slide rail 304 and the first slider 305 allows the clamping plate 303 to move smoothly in the horizontal direction, ensuring the accuracy and stability of the clamping action; after the first side plate 201 is stably clamped, the welding work of the seat frame 2 can be started. Due to the precise clamping and positioning of the first clamping assembly 3, the welding process can be more accurate and efficient; after welding is completed, the piston rods of the first double-axis cylinder 302 and the first telescopic cylinder 9 contract respectively, releasing the clamping and support of the first side plate 201, and the staff can unload the welded seat frame 2 from the workbench 1 for the next assembly or test. During the whole working process, the first clamping assembly 3 ensures the stability and accuracy of the seat frame 2 during the welding process through precise clamping and positioning, improving the work efficiency and product quality.
[0031] Please refer to Figure 2 , as an embodiment of the present invention, a first positioning cylinder 10 and a second positioning cylinder 11 are respectively provided below both ends of the first side plate 201, where the first positioning cylinder 10 and the second positioning cylinder 11 are respectively fixedly connected to the workbench 1; a second positioning post 12 is provided at the top of the piston rod of the first positioning cylinder 10, where the second positioning post 12 corresponds to a second mounting hole opened below one end of the first side plate 201; a third positioning post 13 is provided at the top of the piston rod of the second positioning cylinder 11, where the third positioning post 13 corresponds to a third mounting hole opened below the other end of the first side plate 201.
[0032] In the above-described solution, the first side plate 201 is placed on the workbench 1 to ensure that its position is approximately accurate. Then, the first positioning cylinder 10 is controlled to drive the piston rod to extend upward, so that the piston rod drives the second positioning column 12 to move downward below one end of the first side plate 201. When the second positioning column 12 corresponds to the second mounting hole on the first side plate 201, the second positioning column 12 will be inserted into the second mounting hole to achieve the positioning of one end of the first side plate 201. At the same time, the second positioning cylinder 11 is controlled to drive the piston rod to extend upward as well, so as to drive the third positioning column 13 to move downward below the other end of the first side plate 201. When the third positioning column 13 corresponds to the third mounting hole on the first side plate 201, the third positioning column 13 will be inserted into the third mounting hole to achieve the positioning of the other end of the first side plate 201. Through the action of the first positioning cylinder 10 and the second positioning cylinder 11, both ends of the first side plate 201 are firmly positioned on the workbench 1 to ensure its stability in subsequent operations. This positioning method can improve the accuracy and efficiency of the first side plate 201 in processes such as welding and assembly.
[0033] Please refer to Figure 2 、 Figure 3 As an embodiment of the present utility model, the second clamping assembly 4 includes a movable plate 401, and a second double-axis cylinder 402 is provided below the movable plate 401. The cylinder body of the second double-axis cylinder 402 is fixedly connected to the workbench 1, and the top of the piston rod of the second double-axis cylinder 402 is fixedly connected to the side of the movable plate 401 through a connecting member 403. Second linear slide rails 404 are symmetrically installed on both sides of the second double-axis cylinder 402, and the lower ends of the second linear slide rails 404 are fixedly connected to the workbench 1. Second sliders 405 are symmetrically installed at the lower ends of both sides of the movable plate 401, and the second sliders 405 are arranged on the second linear slide rails 404 and are slidably connected thereto. A third double-axis cylinder 406 is installed at the upper end of the movable plate 401, and a lifting plate 407 is fixedly connected to the top of the piston rod of the third double-axis cylinder 406. A support block 408 is provided at one end of the lifting plate 407 close to the second side plate 202, and a fourth positioning column 14 is provided on the support block 408, and the fourth positioning column 14 corresponds to the fourth mounting hole opened at the upper end of the second side plate 202. A limiting bracket 15 is provided on one side of the workbench 1 close to the second clamping assembly 4, and the lower end of the limiting bracket 15 is fixedly connected to the workbench 1. A limiting block 16 is provided at the upper end of the limiting bracket 15, and the limiting block 16 abuts against the inner wall of the second side plate 202.
[0034] In the above-described solution, in the initial state, the movable plate 401 is at the initial position of the second double-acting cylinder 402, that is, the position when the piston rod is not retracted; at this time, the lifting plate 407 is also at the initial position of the third double-acting cylinder 406, and the fourth positioning post 14 on the support block 408 does not correspond to the fourth mounting hole on the second side plate 202; when the second side plate 202 is placed on the workbench 1 close to the second clamping assembly 4, the second double-acting cylinder 402 drives the piston rod to retract. As the second double-acting cylinder 402 drives the piston rod to retract, the movable plate 401 starts to move along the second linear slide rail 404 towards the second side plate 202. The second slider 405 slides on the second linear slide rail 404 to ensure the smooth movement of the movable plate 401; when the movable plate 401 moves to a predetermined position, the third double-acting cylinder 406 pushes the piston rod to rise, thereby driving the lifting plate 407 to rise, so that the lifting plate 407 drives the support block 408 to rise accordingly until the fourth positioning post 14 provided on the support block 408 corresponds to the fourth mounting hole at the upper end of the second side plate 202; at this time, continue to push the lifting plate 407 to rise so that the fourth positioning post 14 is completely inserted into the fourth mounting hole to achieve the positioning of the upper end of the second side plate 202; after the fourth positioning post 14 is inserted into the fourth mounting hole, the upper end of the second side plate 202 is firmly positioned on the movable plate 401; at the same time, the limiting block 16 on the limiting bracket 15 will abut against the inner wall of the second side plate 202 to further enhance the clamping stability; after the second side plate 202 is stably clamped and positioned, subsequent operations such as welding and assembly can be carried out, ensuring the accuracy and efficiency of the subsequent operations.
[0035] Please refer to Figure 3 , as an embodiment of the present utility model, a second telescopic cylinder 409 is provided at the upper end of the movable plate 401. The cylinder body of the second telescopic cylinder 409 is fixedly connected to the movable plate 401; the top end of the piston rod of the second telescopic cylinder 409 extends towards the second side plate 202 and abuts against the outer wall of the second side plate 202; a third rotary clamping cylinder 17 is also provided at the upper end of the movable plate 401. The front end of the clamping arm of the third rotary clamping cylinder 17 is provided with a first pressing head 18, and the first pressing head 18 is arranged above the second side plate 202.
[0036] In the above-described solution, by placing the second side plate 202 on the workbench 1 close to the second clamping assembly 4, the second double-axis cylinder 402 drives the movable plate 401 to move towards the second side plate 202 until the movable plate 401 approaches the second side plate 202; when the movable plate 401 approaches the second side plate 202, the second telescopic cylinder 409 drives its piston rod to extend outwards until the top end of the piston rod abuts against the outer wall of the second side plate 202, which provides a preliminary and stable clamping force for the second side plate 202; while the second telescopic cylinder 409 provides the preliminary clamping force, the third rotary clamping cylinder 17 starts to work, and its clamping arm starts to rotate to press the first pressing head 18 towards the second side plate 202, and the first pressing head 18 contacts the upper part of the second side plate 202 and applies a certain pressure, so as to realize the complete clamping of the second side plate 202; the coordinated work of the second telescopic cylinder 409 and the third rotary clamping cylinder 17 ensures that the second side plate 202 is stably and effectively clamped and positioned, providing a reliable guarantee for subsequent operations.
[0037] Please refer to Figure 2 , Figure 3 , as an embodiment of the present invention, a support platform 19 is arranged side by side on one side of the first rotary clamping cylinder 5, wherein the support platform 19 is arranged below the cross bar 203; a pressing block 20 is arranged at the front end of the clamping arm of the first rotary clamping cylinder 5, wherein the pressing block 20 is arranged above the support platform 19; a limiting groove 21 adapted to the cross bar 203 is formed at the upper end of the support platform 19, and an arc-shaped pressing groove 22 fitting the surface of the cross bar 203 is formed at the lower end of the pressing block 20; auxiliary support plates 23 are respectively arranged on both sides of the support platform 19, and a supporting groove 24 is formed at the upper end of the auxiliary support plate 23; there are two second rotary clamping cylinders 6, and the two second rotary clamping cylinders 6 are arranged side by side; a second pressing head 25 is arranged at the front end of the clamping arm of the second rotary clamping cylinder 6, wherein the second pressing head 25 is arranged above the cross plate 204.
[0038] In the above-described solution, the first rotary clamping cylinder 5 has a clamping arm, and a pressing block 20 is installed at the front end of the clamping arm; the support table 19 is located below the cross bar 203, and the support table 19 is used to support and position the cross bar 203. There is a limiting groove 21 at the upper end of the support table 19, and the shape of the limiting groove 21 matches that of the cross bar 203 to ensure that the cross bar 203 remains stable during the welding process; the pressing block 20 is installed at the front end of the clamping arm of the first rotary clamping cylinder 5 and is located above the support table 19. An arc-shaped pressing groove 22 is provided at the lower end of the pressing block 20, and the shape of the arc-shaped pressing groove 22 matches the surface of the cross bar 203. When the first rotary clamping cylinder 5 operates, the pressing block 20 will move downward and closely fit the cross bar 203, thereby fixing the position of the cross bar 203; the auxiliary support plates 23 are located on both sides of the support table 19 and are used to provide additional support. There is a supporting groove 24 at the upper end of the auxiliary support plate 23, which can further stabilize the cross bar 203; there are two second rotary clamping cylinders 6 arranged side by side, and a second pressing head 25 is installed at the front end of the clamping arm of each second rotary clamping cylinder 6. The second pressing head 25 is located above the cross plate 204. When the second rotary clamping cylinder 6 operates, the second pressing head 25 will move downward and press the cross plate 204, thereby ensuring that the cross plate 204 remains stable during the welding process.
[0039] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.
Claims
1. A welding device for a car seat frame, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is provided with a first clamping assembly (1) and a second clamping assembly (4) for clamping the seat frame (2); the first clamping assembly (3) is used to clamp and fix the first side plate (201) of the seat frame (2), wherein the second clamping assembly (4) is used to fix the second side plate (202) of the seat frame (2); a cross bar (203) and a cross plate (204) are provided between the first side plate (201) and the second side plate (202), wherein the cross bar (203) and the cross plate (204) are spaced apart; a first rotary clamping cylinder (5) is provided on the side of the workbench (1) close to the cross bar (203), wherein a second rotary clamping cylinder (6) is provided on the side of the workbench (1) close to the cross plate (204); the first rotary clamping cylinder (5) is used to fix the cross bar (203), wherein the second rotary clamping cylinder (6) is used to fix the cross plate (204).
2. The automobile seat frame welding device according to claim 1, characterized in that: The first clamping assembly (3) comprises a base (301), wherein the lower end of the base (301) is fixedly connected to the workbench (1); a first double-axis cylinder (302) is fixedly installed on the upper end of the base (301), wherein the front end of the piston rod of the first double-axis cylinder (302) is connected to a clamping plate (303); the clamping plate (303) abuts against the outer wall of the first side plate (201), wherein the abutting surface of the clamping plate (303) is provided with a first positioning column (7); the first positioning column (7) corresponds to a first mounting hole provided on the first side plate (201), wherein the first positioning column (7) is inserted into the first mounting hole; a support frame (8) is provided on the side of the workbench (1) close to the first clamping assembly (3), wherein the upper end of the support frame (8) is provided with a first telescopic cylinder (9); the top end of the piston rod of the first telescopic cylinder (9) extends toward the first side plate (201) and abuts against the inner wall of the first side plate (201).
3. The automobile seat frame welding device according to claim 2, characterized in that: A first positioning cylinder (10) and a second positioning cylinder (11) are respectively provided below the two ends of the first side plate (201), wherein the first positioning cylinder (10) and the second positioning cylinder (11) are respectively fixedly connected to the workbench (1); a second positioning column (12) is provided at the top end of the piston rod of the first positioning cylinder (10), wherein the second positioning column (12) corresponds to a second mounting hole opened below one end of the first side plate (201); a third positioning column (13) is provided at the top end of the piston rod of the second positioning cylinder (11), wherein the third positioning column (13) corresponds to a third mounting hole opened below the other end of the first side plate (201).
4. The automobile seat frame welding device according to claim 1, characterized in that: The second clamping assembly (4) comprises a movable plate (401), wherein a second double-axis cylinder (402) is provided below the movable plate (401); the cylinder body of the second double-axis cylinder (402) is fixedly connected to the workbench (1), wherein the top end of the piston rod of the second double-axis cylinder (402) is fixedly connected to the side of the movable plate (401) through a connecting piece (403); a third double-axis cylinder (406) is installed at the upper end of the movable plate (401), wherein the top end of the piston rod of the third double-axis cylinder (406) is fixedly connected to a lifting plate (407); a support block (408) is provided at one end of the lifting plate (407) close to the second side plate (202), wherein a fourth positioning column (14) is provided on the support block (408); the fourth positioning column (14) corresponds to a fourth mounting hole opened at the upper end of the second side plate (202).
5. The automobile seat frame welding device according to claim 4, characterized in that: A second telescopic cylinder (409) is provided at the upper end of the movable plate (401), wherein the cylinder body of the second telescopic cylinder (409) is fixedly connected to the movable plate (401); the top end of the piston rod of the second telescopic cylinder (409) extends toward the second side plate (202) and abuts against the outer wall of the second side plate (202); a third rotary clamping cylinder (17) is also provided at the upper end of the movable plate (401), wherein a first pressure head (18) is installed at the front end of the clamping arm of the third rotary clamping cylinder (17), and the first pressure head (18) is arranged above the second side plate (202).
6. The automobile seat frame welding device according to claim 4, characterized in that: A limiting bracket (15) is provided on one side of the workbench (1) close to the second clamping assembly (4), wherein the lower end of the limiting bracket (15) is fixedly connected to the workbench (1); and a limiting block (16) is provided on the upper end of the limiting bracket (15), wherein the limiting block (16) abuts against the inner wall of the second side plate (202).
7. The automobile seat frame welding device according to claim 1, characterized in that: A support platform (19) is arranged side by side on one side of the first rotary clamping cylinder (5), wherein the support platform (19) is arranged below the cross bar (203); a clamping block (20) is arranged at the front end of the clamping arm of the first rotary clamping cylinder (5), wherein the clamping block (20) is arranged above the support platform (19); a limiting groove (21) adapted to the cross bar (203) is provided at the upper end of the support platform (19), wherein an arc-shaped extrusion groove (22) fitted with the surface of the cross bar (203) is provided at the lower end of the clamping block (20).
8. The automobile seat frame welding device according to claim 7, characterized in that: Auxiliary support plates (23) are respectively provided on both sides of the support platform (19), wherein a supporting groove (24) is provided at the upper end of the auxiliary support plate (23).
9. The automobile seat frame welding device according to claim 1, characterized in that: Two second rotary clamping cylinders (6) are provided, wherein the two second rotary clamping cylinders (6) are arranged side by side; a second pressure head (25) is provided at the front end of the clamping arm of the second rotary clamping cylinder (6), wherein the second pressure head (25) is arranged above the transverse plate (204).