A combined tooling fixture for laser welded blanks

Abstract

The utility model relates to laser welding technology field discloses a kind of combined tool fixture of laser welding plate, including platform, the bottom of the platform is rotatably connected with rotating disc, the bottom left and right ends of the rotating disc are rotatably connected with movable rod, the top left and right sides of the platform are slidably connected with sliding plate, the top left and right ends of two the sliding plate are fixedly connected with side plate, the adjacent side front end of the side plate is slidably connected with sliding column, the middle part of the sliding column is threadedly connected with threaded rod, the top of two the sliding plate is provided with pre-tightening mechanism, the effect of the pre-tightening mechanism is to play pre-tightening effect when clamping.The utility model is placed on two side clamps and as far as possible far away in plate material, lifting motor drives threaded rod rotation, sliding column moves back, drives support rod two, support rod one, sliding block moves back, support rod one and two promote clamping plate to rise, clamping plate and clamping block clamping plate material.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and in particular to a combined tooling fixture for laser welding plates. Background Technology

[0002] Laser-welded plates are an advanced material processing technology that uses laser welding to join metal sheets of different materials, thicknesses, coatings, or properties into a single sheet. Its core principle is to select and precisely weld sheets with corresponding characteristics based on the varying strength, corrosion resistance, and lightweight requirements of different parts of a component. The advantages of laser-welded plates include material optimization, lightweighting, process simplification, and performance enhancement. Currently, laser-welded plates are most widely used in the automotive industry, serving as key components for vehicle side panels, floors, and door panels. They have become an important technological means for achieving lightweighting and high performance in modern automobiles. Furthermore, there is a growing trend of their application in the aerospace and machinery manufacturing fields.

[0003] Existing laser welding fixtures are often designed for specific products and have poor versatility. They are typically designed for products with specific welding gap distances and cannot adapt to welding with various gap distances. By designing the clamping devices on both sides as movable structures, when the gap distance needs to be adjusted, only the motor needs to be controlled to drive the clamping devices to move closer or further apart. On the other hand, during the welding process, welding stress may cause dimensional deviations, and the cumulative consequences are weld failure or workpiece deformation, which affects product quality and subsequent production efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a combined tooling fixture for laser welding plates, which aims to improve the existing laser welding tooling fixtures in the prior art, which are often designed for specific products and have poor versatility. They are usually designed for products with specific welding gap distances and cannot adapt to welding of various gap distances.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a combined tooling fixture for laser welding plates, comprising a platform, a rotating disk rotatably connected to the bottom of the platform, movable rods rotatably connected to the left and right ends of the bottom of the rotating disk, sliding plates slidably connected to the left and right sides of the top of the platform, side plates fixedly connected to the left and right ends of the top of the two sliding plates, sliding columns slidably connected to the front ends of adjacent sides of the side plates, threaded rods threadedly connected to the middle of the sliding columns, support rods two rotatably connected to the left and right ends of the outer walls of the sliding columns, support rods one rotatably connected to the rear ends of adjacent sides of the side plates, sliding blocks rotatably connected to the top ends of support rods two and one, clamping plates slidably connected to the top of the sliding blocks, protrusions fixedly connected to the front and rear ends of the bottom of the two sliding plates, connecting rods fixedly connected to the adjacent sides of the protrusions, the middle of the bottom ends of the two connecting rods rotatably connected to the opposite ends of the two movable rods, and a pre-tightening mechanism provided on the top of the two sliding plates, the function of which is to pre-tighten during clamping.

[0006] As a further description of the above technical solution: The pre-tightening mechanism includes multiple internally threaded columns. The bottom ends of the multiple internally threaded columns are rotatably connected to the top ends of the two sliding plates away from each other. The inner walls of the multiple internally threaded columns are all threaded with externally threaded columns. The top ends of the multiple externally threaded columns are all fixedly connected with hollow columns. The bottom ends of the inner walls of the multiple hollow columns are all slidably connected with pistons. The tops of the multiple pistons are all fixedly connected with telescopic columns. The inner walls of the multiple hollow columns are all provided with springs.

[0007] As a further description of the above technical solution: The top of the telescopic column is fixedly connected to a connecting column, and the top of the connecting column is fixedly connected to a clamping block.

[0008] As a further description of the above technical solution: The side plate has grooves on each adjacent side, and an L-shaped rod is fixedly connected to the bottom rear end of the platform.

[0009] As a further description of the above technical solution: The front end of the L-shaped rod is fixedly connected to a rotating motor, and the output end of the rotating motor is fixedly connected to a rotating column.

[0010] As a further description of the above technical solution: Anti-slip pads are fixedly connected to the adjacent sides of the clamping plates and clamping blocks, and a control box is fixedly connected to the front side of the platform.

[0011] As a further description of the above technical solution: A lifting motor is fixedly connected to the top front end of the sliding plate, and a support block is fixedly connected to the top center of the clamping plate.

[0012] As a further description of the above technical solution: Through holes are provided on the opposite sides of the two clamping plates, and sliding grooves are provided on the bottom of the two clamping plates.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the plate is placed on the two side clamps and kept as far apart as possible. The lifting motor is started, which drives the threaded rod to rotate. Because the sliding column is threadedly connected to the threaded rod, the sliding column moves backward, which drives the second support rod, the first support rod, and the sliding block to move backward. The first and second support rods push the clamps to rise. The clamps and the clamps hold the plate. The rotating motor is started, which drives the rotating column and the rotating disk to rotate. The rotating disk pulls the movable rod, the connecting rod, and the protrusion closer. The protrusion drives the sliding plate closer, so that the plate is close to the required distance and then stops.

[0014] 2. In this utility model, when shaking occurs, the clamping plate briefly moves away from the clamping block. The spring inside the hollow column pushes the piston, telescopic column, connecting column, and clamping block to move down, so that the clamping block is close to the plate and clamps it again. If it is necessary to adjust the pre-tightening degree of the pre-tightening mechanism, after clamping the plate, rotate the inner thread column. Because the outer thread column is threadedly connected to the inner thread column, the outer thread column moves down, which drives the hollow column to move down and compress the spring. The pre-tightening degree is adjusted by changing the degree of compression. Attached Figure Description

[0015] Figure 1 This is an overall front view of a combined tooling fixture for laser welding plates proposed in this utility model; Figure 2 This is an overall side view of a combined tooling fixture for laser welding plates proposed in this utility model; Figure 3 This is a hollow column cross-sectional view of a combined tooling fixture for laser welding plates proposed in this utility model; Figure 4 This is a side view of the sliding plate of a combined tooling fixture for laser welding plates proposed in this utility model; Figure 5 This is a top view of the sliding plate of a combined tooling fixture for laser welding plates proposed in this utility model.

[0016] Legend: 1. Platform; 2. Pre-tightening mechanism; 201. Hollow column; 202. Telescopic column; 203. Spring; 204. Piston; 205. Internally threaded column; 206. Externally threaded column; 3. Rotating disk; 4. Movable rod; 5. Clamping plate; 6. Sliding plate; 7. Connecting rod; 8. Protrusion; 9. Support rod one; 10. Sliding block; 11. Support rod two; 12. Side plate; 13. Sliding column; 14. Threaded rod; 15. Connecting column; 16. Groove; 17. Rotating column; 18. Anti-slip pad; 19. Clamping block; 20. Control box; 21. L-shaped rod; 22. Lifting motor; 23. Rotating motor; 24. Through hole; 25. Slide groove; 26. Support block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 This utility model provides an embodiment of a combined tooling fixture for laser welding plates, including a platform 1. A rotating disk 3 is rotatably connected to the bottom of the platform 1. Movable rods 4 are rotatably connected to the left and right ends of the bottom of the rotating disk 3. The movable rods 4 and the rotating disk 3 cooperate to convert the rotational motion into horizontal movement. Sliding plates 6 are slidably connected to the left and right sides of the top of the platform 1. Side plates 12 are fixedly connected to the left and right ends of the top of the two sliding plates 6. The side plates 12 are responsible for supporting sliding columns 13 and support rods 9. A sliding column 13 is slidably connected to the front end of an adjacent side of the side plate 12. A threaded rod 14 is threadedly connected to the middle of the sliding column 13. The threaded rod 14 and the sliding column 13 cooperate to convert the rotational motion into horizontal movement. Support rod 11 is rotatably connected to both the left and right ends of the outer wall. Support rod 9 is rotatably connected to the rear end of the adjacent side of the side plate 12. Support rod 9 and support rod 11 together support the clamping plate 5. Sliding block 10 is rotatably connected to the top of support rod 11 and support rod 9. The clamping plate 5 is slidably connected to the top of the sliding block 10. Protrusion 8 is fixedly connected to the front and rear ends of the bottom of the two sliding plates 6. The protrusion 8 is responsible for restricting the sliding plate 6 to move only left and right. Connecting rod 7 is fixedly connected to the adjacent side of the protrusion 8. The middle of the bottom end of the two connecting rods 7 is rotatably connected to the opposite end of the two movable rods 4. A pre-tightening mechanism 2 is provided on the top of the two sliding plates 6. The function of the pre-tightening mechanism 2 is to pre-tighten during clamping. Specifically, the system includes a platform 1, the bottom of which is connected to a rotating disk 3 via a rotatable connection. Both ends of the bottom of the rotating disk 3 are rotatably connected to movable rods 4. The movable rods 4 and the rotating disk 3 cooperate to effectively convert the rotational motion of the rotating disk 3 into horizontal movement. The top left and right sides of the platform 1 are slidably connected to sliding plates 6. The top left and right ends of the two sliding plates 6 are fixedly connected to side plates 12 to ensure stability. The side plates 12 not only support the sliding column 13 and the support rod 9, but also slide to the front end of the adjacent side of the sliding column 13. The middle of the sliding column 13 is connected to a threaded rod 14 via a threaded connection. The threaded rod 14 and the sliding column 13 cooperate to convert rotational motion into horizontal movement. Both ends of the outer wall of the sliding column 13 are... The side plate 12 is rotatably connected to support rod 11, while the rear end of the side plate 12 is rotatably connected to support rod 9. Support rod 9 and support rod 11 work together to support the clamping plate 5. The top ends of support rod 11 and support rod 9 are rotatably connected to sliding block 10. The top of sliding block 10 is connected to clamping plate 5 by sliding connection. The front and rear ends of the bottom of the two sliding plates 6 are fixedly connected to protrusions 8. The main function of protrusions 8 is to restrict the sliding plates 6 to move only left and right, ensuring the accuracy of their movement direction. The side adjacent to protrusions 8 is fixedly connected to connecting rod 7. The middle of the bottom end of the two connecting rods 7 is rotatably connected to the ends of the two movable rods 4 that are far away from each other. The top of the two sliding plates 6 is provided with a pre-tightening mechanism 2. The pre-tightening mechanism 2 plays a pre-tightening role during clamping, ensuring the stability and reliability of clamping.

[0019] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The pre-tightening mechanism 2 includes multiple internally threaded columns 205. Due to the manual adjustment of the height of the hollow column 201, the bottom ends of the multiple internally threaded columns 205 are rotatably connected to the top ends of the two sliding plates 6. The inner walls of the multiple internally threaded columns 205 are threaded with externally threaded columns 206. The externally threaded columns 206 and the internally threaded columns 205 cooperate to convert the rotational motion into vertical motion. The top ends of the multiple externally threaded columns 206 are fixedly connected with hollow columns 201. The bottom ends of the inner walls of the multiple hollow columns 201 are slidably connected with pistons 204. The pistons 204 and the inner walls of the hollow columns 201 cooperate to compress springs 203. The tops of the multiple pistons 204 are fixedly connected with telescopic columns 202. The inner walls of the multiple hollow columns 201 are provided with springs 203. Specifically, the pre-tightening mechanism 2 includes multiple internally threaded posts 205. The height of these internally threaded posts 205 can be manually adjusted to adapt to different clamping requirements. The bottom ends of the multiple internally threaded posts 205 are rotatably connected to the ends of the two sliding plates 6 that are far from the top. The inner walls of the multiple internally threaded posts 205 are all connected to externally threaded posts 206 by threaded connection. The externally threaded posts 206 and the internally threaded posts 205 cooperate with each other to convert rotational motion into vertical motion. The top ends of the multiple externally threaded posts 206 are all fixedly connected to hollow posts 201. The bottom ends of the inner walls of the multiple hollow posts 201 are all slidably connected to pistons 204. The pistons 204 and the inner walls of the hollow posts 201 cooperate with each other to compress the springs 203 to ensure the pre-tightening effect. The tops of the multiple pistons 204 are all fixedly connected to telescopic posts 202. The inner walls of the multiple hollow posts 201 are all provided with springs 203 to provide the necessary elasticity.

[0020] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The top of the telescopic column 202 is fixedly connected to the connecting column 15, and the top of the connecting column 15 is fixedly connected to the clamping block 19. The clamping block 19 and the clamping plate 5 cooperate to clamp the plate. The adjacent sides of the side plate 12 are provided with grooves 16, which are used for the sliding column 13 to slide. The bottom rear end of the platform 1 is fixedly connected to the L-shaped rod 21, which is used to fix and support the rotating motor 23. The front end of the L-shaped rod 21 is fixedly connected to the rotating motor 23, and the output end of the rotating motor 23 is fixedly connected to the rotating column 17. Specifically, the top of the telescopic column 202 is fixedly connected to the connecting column 15, and the top of the connecting column 15 is fixedly connected to the clamping block 19. The clamping block 19 and the clamping plate 5 cooperate with each other to achieve the clamping function of the plate. The side plate 12 has grooves 16 on its adjacent side. These grooves 16 allow the sliding column 13 to slide in them to ensure its smooth movement. The rear end of the bottom of the platform 1 is fixedly connected to the L-shaped rod 21. The L-shaped rod 21 is mainly used to fix and support the rotating motor 23. The front end of the L-shaped rod 21 is fixedly connected to the rotating motor 23. The output end of the rotating motor 23 is fixedly connected to the rotating column 17 to drive the rotation of the entire mechanism.

[0021] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 5Anti-slip pads 18 are fixedly connected to the adjacent sides of clamping plate 5 and clamping block 19. A control box 20 is fixedly connected to the front side of platform 1. The control box 20 is used to control the lifting motor 22 and the rotating motor 23. The lifting motor 22 is fixedly connected to the top front end of sliding plate 6. A support block 26 is fixedly connected to the top middle of clamping plate 5. The support block 26 is used to support threaded rod 14. Through holes 24 are opened on the opposite sides of the two clamping plates 5. Through holes 24 are used for the passage of connecting column 15. Slide grooves 25 are opened at the bottom of the two clamping plates 5. Slide grooves 25 are used for the sliding of sliding block 10. Specifically, the adjacent sides of the clamping plates 5 and clamping blocks 19 are fixedly connected to the anti-slip pads 18 to increase the friction during clamping and prevent the plates from sliding. The front side of the platform 1 is fixedly connected to the control box 20, which is used to control the lifting motor 22 and the rotating motor 23 to ensure the coordinated operation of the entire system. The front end of the top of the sliding plate 6 is fixedly connected to the lifting motor 22, and the middle part of the top of the clamping plate 5 is fixedly connected to the support block 26. The support block 26 is used to support the threaded rod 14 to ensure its stable operation. Through holes 24 are provided on the opposite sides of the two clamping plates 5, through which the connecting column 15 passes to ensure the smooth movement of the connecting column 15. Slide grooves 25 are provided at the bottom of the two clamping plates 5, through which the sliding block 10 slides to ensure the flexibility of the sliding block 10.

[0022] Working principle: Place the boards on the clamping plates 5 on both sides, keeping them as far apart as possible. Start the lifting motor 22, which drives the threaded rod 14 to rotate. Since the sliding column 13 and the threaded rod 14 are threadedly connected, the sliding column 13 moves backward as the threaded rod 14 rotates. The sliding column 13 drives the second support rod 11 to move backward, which in turn drives the first support rod 9 to move backward. The first support rod 9 drives the sliding block 10 to slide backward. The first support rod 9 and the second support rod 11 together push the clamping plate 5 upward. The clamping plate 5 and the clamping block 19 together hold the boards. Start the rotating motor 23, which drives the rotating column 17 to rotate. The rotating column 17 drives the rotating disk 3 to rotate. The rotating disk 3 pulls the movable rod 4 closer to the rotating disk 3. The movable rod 4 pulls the connecting rod 7 closer to the rotating disk 3. The rotating disk 3 drives the protrusion 8 closer to the rotating disk 3. The protrusion 8 drives the sliding plates 6 to move closer together. Finally, the boards move closer together until they reach the required distance and then stop.

[0023] When wobbling occurs, the clamping plate 5, carrying the plate, will briefly move away from the clamping block 19. At this time, the spring 203 inside the hollow column 201 pushes the piston 204 downward, which in turn drives the telescopic column 202 downward, which in turn drives the connecting column 15 downward, which in turn drives the clamping block 19 downward, bringing the clamping block 19 closer to the plate and achieving a short-term re-clamping. When it is necessary to adjust the pre-tightening degree of the pre-tightening mechanism 2, after clamping the plate, rotate the internal threaded column 205. Since the external threaded column 206 and the internal threaded column 205 are threadedly connected, the external threaded column 206 moves downward as the internal threaded column 205 rotates. The external threaded column 206 drives the hollow column 201 downward, and the hollow column 201 compresses the spring 203. By changing the degree of compression on the spring 203, the pre-tightening degree of the pre-tightening mechanism 2 is adjusted.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined tooling fixture for laser tailor welded blanks comprising a platform (1), characterized in that: The bottom of the platform (1) is rotatably connected to a rotating disk (3). The bottom left and right ends of the rotating disk (3) are rotatably connected to movable rods (4). The top left and right sides of the platform (1) are slidably connected to sliding plates (6). The top left and right ends of the two sliding plates (6) are fixedly connected to side plates (12). The front end of the adjacent side of the side plate (12) is slidably connected to a sliding column (13). The middle of the sliding column (13) is threadedly connected to a threaded rod (14). The left and right ends of the outer wall of the sliding column (13) are rotatably connected to support rods (11). The rear ends of the adjacent side of the side plate (12) are rotatably connected to the sliding column (13). There is a support rod 1 (9), and the top of the support rod 2 (11) and the support rod 1 (9) are rotatably connected to a sliding block (10). The top of the sliding block (10) is slidably connected to a clamping plate (5). The bottom front and rear ends of the two sliding plates (6) are fixedly connected to protrusions (8). The adjacent side of the protrusions (8) is fixedly connected to a connecting rod (7). The bottom middle of the two connecting rods (7) is rotatably connected to the opposite ends of the two movable rods (4). The top of the two sliding plates (6) is provided with a pre-tightening mechanism (2). The function of the pre-tightening mechanism (2) is to pre-tighten during clamping.

2. The combined tooling fixture for laser tailor-welded blank as claimed in claim 1, wherein: The pre-tightening mechanism (2) includes multiple internal threaded columns (205), the bottom ends of the multiple internal threaded columns (205) are rotatably connected to the top ends of the two sliding plates (6) away from each other, the inner walls of the multiple internal threaded columns (205) are threaded with external threaded columns (206), the top ends of the multiple external threaded columns (206) are fixedly connected with hollow columns (201), the bottom ends of the inner walls of the multiple hollow columns (201) are slidably connected with pistons (204), the tops of the multiple pistons (204) are fixedly connected with telescopic columns (202), and the inner walls of the multiple hollow columns (201) are provided with springs (203).

3. The combined tooling fixture for laser-welded plates according to claim 2, characterized in that: The top end of the telescopic column (202) is fixedly connected to a connecting column (15), and the top end of the connecting column (15) is fixedly connected to a clamping block (19).

4. The combined tooling fixture for laser-welded plates according to claim 1, characterized in that: The side plate (12) has a groove (16) on each adjacent side, and the bottom rear end of the platform (1) is fixedly connected to an L-shaped rod (21).

5. The combined tooling fixture for laser-welded plates according to claim 4, characterized in that: The front end of the L-shaped rod (21) is fixedly connected to a rotating motor (23), and the output end of the rotating motor (23) is fixedly connected to a rotating column (17).

6. The combined tooling fixture for laser-welded plates according to claim 1, characterized in that: Anti-slip pads (18) are fixedly connected to the adjacent sides of the clamping plate (5) and the clamping block (19), and a control box (20) is fixedly connected to the front side of the platform (1).

7. The combined tooling fixture for laser-welded plates according to claim 1, characterized in that: A lifting motor (22) is fixedly connected to the top front end of the sliding plate (6), and a support block (26) is fixedly connected to the top center of the clamping plate (5).

8. The combined tooling fixture for laser-welded plates according to claim 1, characterized in that: Through holes (24) are provided on the opposite side of the two clamping plates (5), and sliding grooves (25) are provided on the bottom of the two clamping plates (5).

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