Welding fixture device capable of adjusting clamping force

Abstract

The utility model relates to the technical field of welding fixtures, and discloses a welding fixture device capable of adjusting clamping force, which comprises a clamping plate, an adjusting plate is slidably connected in the clamping plate, a plurality of clamping grooves are formed in the adjusting plate, a fixing block is fixedly connected to the upper surface of the clamping plate, a sliding column is slidably connected in the fixing block, and a clamping groove is formed in the sliding column. The upper surface of the sliding column is fixedly connected with a pulling piece, the interior of the fixing block is slidably connected with a fixing piece, the upper surface of the fixing piece is fixedly connected with a spring, the lower surface of the fixing piece is fixedly connected with a clamping column, and the outer wall of the clamping plate and the outer wall of the adjusting plate are both fixedly connected with limiting plates. According to the clamping device, the pulling piece is pulled, the clamping column is clamped on the inner walls of different clamping grooves through mutual cooperation of the fixing block, the sliding column, the fixing piece, the spring and the clamping column, the position between the limiting plates on the two sides can be adjusted, and the effect that the clamping force is indirectly adjusted by changing the position of a workpiece clamping point in the clamping process is achieved.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture device with adjustable clamping force. Background Technology

[0002] Welding is a process that joins two or more workpieces together by heating or pressurizing (or both). A welding fixture is a device used to fix, position, and clamp workpieces during the welding process. By flexibly adjusting the clamping force and clamping position, the workpiece is ensured to remain stable during welding, reducing welding deformation and defects. Therefore, a welding fixture device with adjustable clamping force is used.

[0003] An adjustable clamping force welding fixture is a type of welding fixture that can flexibly adjust the clamping force according to the shape, size and welding requirements of the workpiece. In existing fixture devices, the length of the clamping plate is often fixed and cannot be adjusted. When clamping and fixing workpieces of different lengths, the clamping force cannot be adjusted well. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a welding fixture device with adjustable clamping force, which aims to improve the problem that the length of the clamping plate in previous fixtures is relatively fixed and it is difficult to flexibly adjust it according to workpieces of different lengths.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable clamping force welding fixture device, comprising a clamping plate, an adjusting plate slidably connected inside the clamping plate, a plurality of slots formed inside the adjusting plate, a fixing block fixedly connected to the upper surface of the clamping plate, a sliding column slidably connected inside the fixing block, a pull tab fixedly connected to the upper surface of the sliding column, a fixing piece slidably connected inside the fixing block, the upper surface of the fixing piece fixedly connected to the lower surface of the sliding column, a spring fixedly connected to the upper surface of the fixing piece, the upper outer wall of the spring fixedly connected to the inside of the fixing block, a locking pin fixedly connected to the lower surface of the fixing piece, the outer wall of the locking pin slidably connected to the inside of the clamping plate, the outer wall of the locking pin slidably connected to the inside of the fixing block, the outer wall of the locking pin slidably connected to the inner wall of the slots, a limit plate fixedly connected to the outer walls of both the clamping plate and the adjusting plate, and a limit component provided on the lower surface of the clamping plate, the limit component being used to restrict the movement of the clamping plate.

[0006] Preferably, the limiting component includes a sliding plate, the upper surface of which is fixedly connected to the lower surface of the clamping plate, a limiting strip is slidably connected inside the sliding plate, and a frame is fixedly connected to the outer wall of the limiting strip.

[0007] Preferably, a cylinder is fixedly connected inside the frame, and the output end of the cylinder is fixedly connected to the outer wall of the clamping plate.

[0008] Preferably, a connecting block is fixedly connected to the upper surface of the skateboard.

[0009] Preferably, the connecting block is rotatably connected to a first rotating shaft, and a connecting rod is fixedly connected to the outer wall of the first rotating shaft.

[0010] Preferably, a second rotating shaft is fixedly connected inside the connecting rod, and a rotating plate is rotatably connected to the outer wall of the second rotating shaft.

[0011] Preferably, a third rotating shaft is fixedly connected inside the rotating plate, and the outer wall of the third rotating shaft is rotatably connected inside the frame.

[0012] Preferably, the frame has a groove inside.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, pulling the pull tab, through the cooperation between the fixed block, sliding column, fixed plate, spring and locking column, the locking column is locked in the inner wall of different locking slots, which can adjust the position between the two limiting plates, thereby indirectly adjusting the clamping force by changing the position of the workpiece clamping point during the clamping process.

[0015] 2. In this utility model, the starting cylinder pushes the push plate to slide. Through the cooperation between the connecting block, the first rotating shaft, the connecting rod, the second rotating shaft, the rotating plate and the third rotating shaft, the distance between the push plates and the clamping plate on both sides is adjusted to achieve the effect of fixing workpieces of different sizes and ensuring welding accuracy. Attached Figure Description

[0016] Figure 1 This is a perspective view of a welding fixture device with adjustable clamping force proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the adjusting plate of a welding fixture device with adjustable clamping force proposed in this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the fixing block of a welding fixture device with adjustable clamping force proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of the cylinder of a welding fixture device with adjustable clamping force proposed in this utility model.

[0020] Legend:

[0021] 1. Clamping plate; 2. Adjusting plate; 3. Slot; 4. Fixing block; 5. Sliding column; 6. Pull tab; 7. Fixing plate; 8. Spring; 9. Clamping post; 10. Frame; 11. Limiting strip; 12. Cylinder; 13. Slide plate; 14. Connecting block; 15. First rotating shaft; 16. Connecting rod; 17. Second rotating shaft; 18. Rotating plate; 19. Third rotating shaft; 20. Groove; 21. Limiting plate. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a welding fixture device with adjustable clamping force, comprising a clamping plate 1, an adjusting plate 2 slidably connected inside the clamping plate 1, a plurality of slots 3 formed inside the adjusting plate 2, a fixing block 4 fixedly connected to the upper surface of the clamping plate 1, a sliding column 5 slidably connected inside the fixing block 4, a pull plate 6 fixedly connected to the upper surface of the sliding column 5, a fixing piece 7 slidably connected inside the fixing block 4, the upper surface of the fixing piece 7 fixedly connected to the lower surface of the sliding column 5, a spring 8 fixedly connected to the upper surface of the fixing piece 7, the upper outer wall of the spring 8 fixedly connected to the inside of the fixing block 4, a locking post 9 fixedly connected to the lower surface of the fixing piece 7, the outer wall of the locking post 9 slidably connected to the inside of the clamping plate 1, the outer wall of the locking post 9 slidably connected to the inside of the fixing block 4, and the outer wall of the locking post 9 slidably connected to the inner wall of the slots 3, a limiting plate 21 fixedly connected to the outer walls of both the clamping plate 1 and the adjusting plate 2, and a limiting component provided on the lower surface of the clamping plate 1 for limiting the movement of the clamping plate 1.

[0024] Specifically, the fixture has a clamping plate 1 and an adjusting plate 2 on both sides. The adjusting plate 2 extends the clamping plate 1. When the position of the clamping plate 1 and the adjusting plate 2 needs to be adjusted according to workpieces of different lengths, the fixing block 4 is fixed to the upper surface of the clamping plate 1 to support the sliding column 5. The sliding column 5 fixes the pull tab 6. Pulling the pull tab 6 allows the sliding column 5 to slide. The fixing plate 7 connects the sliding column 5 and the locking column 9, allowing the locking column 9 to slide through the sliding of the fixing plate 7, thereby sliding out of the inner wall of the slot 3 and releasing the limitation on the adjusting plate 2. At this time, the adjusting plate 2 can slide inside the clamping plate 1. The design of multiple slots 3 allows for the selection of appropriate slots 3 according to different fixing requirements. By releasing the pull tab 6, the spring 8, after compression, rebounds and pushes the locking post 9 to slide, thus fixing it against the inner wall of the slot 3 to fix the clamping plate 1 and the adjusting plate 2. When the position between the clamping plate 1 and the adjusting plate 2 changes, the position between the two limiting plates 21 will also change accordingly. By adjusting the position between the clamping plates 1 and the adjusting plate 2 on both sides, the workpiece can be better limited and fixed. When the clamping length increases, the distance between the clamping point and the center of the fixture increases, and the point of application and torque of the clamping force will also change accordingly, thereby realizing the adjustment of the clamping force for different workpieces.

[0025] Reference Figure 1 and Figure 4 The limiting component includes a slide plate 13, the upper surface of which is fixedly connected to the lower surface of the clamping plate 1. A limiting strip 11 is slidably connected inside the slide plate 13. A frame 10 is fixedly connected to the outer wall of the limiting strip 11. A cylinder 12 is fixedly connected inside the frame 10. The output end of the cylinder 12 is fixedly connected to the outer wall of the clamping plate 1. A connecting block 14 is fixedly connected to the upper surface of the slide plate 13. A first rotating shaft 15 is rotatably connected inside the connecting block 14. A connecting rod 16 is fixedly connected to the outer wall of the first rotating shaft 15. A second rotating shaft 17 is fixedly connected inside the connecting rod 16. A rotating plate 18 is rotatably connected to the outer wall of the second rotating shaft 17. A third rotating shaft 19 is fixedly connected inside the rotating plate 18. The outer wall of the third rotating shaft 19 is rotatably connected inside the frame 10.

[0026] Specifically, the limiting strip 11 is fixed inside the frame 10 to limit the movement of the slide plate 13, preventing it from deviating during sliding. Clamping plates 1 are fixedly connected to the upper surfaces of both sides of the slide plate 13. The frame 10 serves to fix the cylinder 12, which is only connected to the left clamping plate 1. Driven by the cylinder 12, the left clamping plate 1 can slide, fixing the slide plate 13 and allowing it to slide simultaneously. The slide plate 13 also fixes the connecting blocks 14 at both ends, causing them to slide synchronously. The first rotating shaft 15 connects the connecting blocks 14 on both sides and the connecting rod 16. The connecting rods 16 on both sides can rotate through the first rotating shaft 15. The second rotating shaft 17 connects the connecting rods 16 and the rotating plate 18, allowing the rotating plate 18 to rotate through the action of the second rotating shaft 17. Both ends of the rotating plate 18 are connected to the second rotating shaft 17. The third rotating shaft 19 rotates inside the frame 10 to provide stable support for the rotation of the rotating plates 18 on both sides. The rotation of the rotating plate 18 can drive the first rotating shaft 15 and the connecting rod 16 on the other side to rotate through the second rotating shaft 17 at one end. This, in turn, drives the clamping plate 1 on the other side to slide through the connecting block 14 and the sliding plate 13, allowing for flexible adjustment of the distance between the clamping plates 1 on both sides, thereby limiting and fixing the position of the workpiece.

[0027] Reference Figure 4 The frame 10 has a groove 20 inside.

[0028] Specifically, the grooves 20 on both sides of the frame 10 ensure that the connecting rods 16 and the rotating plate 18 on both sides are not obstructed during rotation.

[0029] Working principle: When this clamping device is needed, the distance between the two clamping plates 1 is adjusted according to the size of different workpieces. The starting cylinder 12 drives the slide plate 13 to slide through the limit strip 11 via the left clamping plate 1. The slide plate 13 drives the connecting blocks 14 at both ends and the first rotating shaft 15 to slide simultaneously. The sliding of the first rotating shaft 15 drives the connecting rod 16 to rotate. The connecting rod 16 drives the rotating plate 18 to rotate via the second rotating shaft 17. The rotation of the rotating plate 18 drives the connecting rod 16 on the other side to pull the slide plate 13 to slide. The sliding of the slide plate 13 on the other side drives the clamping plate 1 on the other side to slide synchronously. By adjusting the distance between the two clamping plates 1, workpieces of different sizes can be fixed to meet the welding requirements of workpieces of different sizes and shapes, ensuring the stability of the workpiece during the welding process. The distance between the two clamping plates 1 and the limit plates 21 on both sides of the adjusting plate 2 is adjusted according to the length of the workpiece. Position adjustment is achieved by simply pulling the pull tab 6. The pull tab 6 will cause the sliding column 5 to slide inside the fixed block 4. When the sliding column 5 slides, it will cause the fixed plate 7 to slide synchronously. During the sliding process, the fixed plate 7 will compress the spring 8. The sliding of the fixed plate 7 will cause the locking column 9 to slide, sliding out of the inner wall of the locking groove 3 and into the interior of the fixed block 4. Select the appropriate locking groove 3, release the pull tab 6, and the rebound action of the spring 8 will push the locking column 9 to lock into the inner wall of the locking groove 3. This can limit and fix the position of the clamping plate 1 and the adjusting plate 2, thereby adjusting the distance between the two limiting plates 21. This achieves the effect of indirectly adjusting the clamping force by changing the position of the workpiece clamping point during the clamping process. This device can not only be used to fix workpieces of different sizes and ensure welding accuracy, but also achieve the effect of flexibly adjusting the position of the clamping plate 1 and the adjusting plate 2, changing the position of the workpiece clamping point during the clamping process, and indirectly adjusting the clamping force.

[0030] 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 welding fixture device with adjustable clamping force, comprising a clamping plate (1), characterized in that: An adjusting plate (2) is slidably connected inside the clamping plate (1). Multiple slots (3) are provided inside the adjusting plate (2). A fixing block (4) is fixedly connected to the upper surface of the clamping plate (1). A sliding column (5) is slidably connected inside the fixing block (4). A pull tab (6) is fixedly connected to the upper surface of the sliding column (5). A fixing piece (7) is slidably connected inside the fixing block (4). The upper surface of the fixing piece (7) is fixedly connected to the lower surface of the sliding column (5). A spring (8) is fixedly connected to the upper surface of the fixing piece (7). The upper outer wall of (8) is fixedly connected to the inside of the fixing block (4). The lower surface of the fixing piece (7) is fixedly connected to the locking post (9). The outer wall of the locking post (9) is slidably connected to the inside of the clamping plate (1). The outer wall of the locking post (9) is slidably connected to the inside of the fixing block (4). The outer wall of the locking post (9) is slidably connected to the inner wall of the slot (3). The outer walls of the clamping plate (1) and the adjusting plate (2) are both fixedly connected to the limiting plate (21). The lower surface of the clamping plate (1) is provided with a limiting component. The limiting component is used to limit the movement of the clamping plate (1).

2. The welding fixture device with adjustable clamping force according to claim 1, characterized in that: The limiting component includes a slide plate (13), the upper surface of which is fixedly connected to the lower surface of the clamp plate (1), and a limiting strip (11) is slidably connected inside the slide plate (13). A frame (10) is fixedly connected to the outer wall of the limiting strip (11).

3. The welding fixture device with adjustable clamping force according to claim 2, characterized in that: A cylinder (12) is fixedly connected inside the frame (10), and the output end of the cylinder (12) is fixedly connected to the outer wall of the clamp (1).

4. The welding fixture device with adjustable clamping force according to claim 3, characterized in that: A connecting block (14) is fixedly connected to the upper surface of the slide plate (13).

5. The welding fixture device with adjustable clamping force according to claim 4, characterized in that: The connecting block (14) is rotatably connected to a first rotating shaft (15), and a connecting rod (16) is fixedly connected to the outer wall of the first rotating shaft (15).

6. The welding fixture device with adjustable clamping force according to claim 5, characterized in that: The connecting rod (16) is internally fixedly connected to a second rotating shaft (17), and the outer wall of the second rotating shaft (17) is rotatably connected to a rotating plate (18).

7. The welding fixture device with adjustable clamping force according to claim 6, characterized in that: The rotating plate (18) is fixedly connected to a third rotating shaft (19), and the outer wall of the third rotating shaft (19) is rotatably connected to the inside of the frame (10).

8. The welding fixture device with adjustable clamping force according to claim 2, characterized in that: The frame (10) has a groove (20) inside.

Images