Positioning clamp for rivet welding and splicing of lug plates

Abstract

The utility model belongs to the technical field of positioning fixtures, and particularly relates to a positioning fixture for rivet welding splicing lug plates, which comprises a base, a vertical rod is fixed at the top of the base, a sliding ring is slidably mounted on the outer wall of the vertical rod in a damping manner, a first fastening bolt is rotatably connected to one side of the sliding ring in a penetrating manner, and a mounting block is fixed to one side of the sliding ring. A rotating shaft is rotationally mounted on one side of the mounting block in a damping manner, a fixing assembly capable of limiting and fixing the rotating shaft is arranged on the outer wall of the rotating shaft, a first fixing lug is fixed to the other end of the rotating shaft, a clamping assembly capable of clamping a lug plate is arranged on one side of the first fixing lug, and two second fixing lugs are arranged on the clamping assembly; according to the welding device, the use flexibility of equipment can be improved, the operation is simple, the positioning of the lug plate is relatively accurate, and the welding quality and the overall production efficiency are further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of positioning jigs, and particularly relates to a positioning jig for riveting and welding spliced ear plates. Background Technique

[0002] Riveting and welding processing is a processing method that connects two or more metal parts with rivets and further strengthens the joint part using welding technology. It combines the advantages of both riveting and welding technologies, such as waterproofness, anti-oxidation, and mechanical strength. In the welding process, especially in the manufacturing process of large-scale mechanical equipment, the riveting and welding splicing of ear plates is a common technological step.

[0003] However, in the process of using the existing ear plate jigs, although the ear plates can be stably clamped and fixed, the clamped ear plates cannot be adjusted in angle, with poor flexibility, and cannot meet the multi-angle riveting and welding splicing of ear plates with metal parts, affecting the welding quality and production efficiency. Content of the Utility Model

[0004] The purpose of this utility model is to provide a positioning jig for riveting and welding spliced ear plates, which can improve the flexibility of equipment use, is easy to operate, makes the positioning of ear plates more accurate, and thus improves the welding quality and overall production efficiency.

[0005] The technical solution adopted by this utility model is specifically as follows:

[0006] A positioning jig for riveting and welding spliced ear plates includes a base. A vertical rod is fixed on the top of the base. A sliding ring is installed on the outer wall of the vertical rod in a damped sliding manner. A first fastening bolt penetrates through one side of the sliding ring in a threaded manner. An installation block is fixed on one side of the sliding ring. A rotating shaft is installed on one side of the installation block in a damped rotating manner. A fixing component for limiting and fixing the rotating shaft is arranged on the outer wall of the rotating shaft. A first fixed ear is fixed at the other end of the rotating shaft. A clamping component for clamping the ear plate is arranged on one side of the first fixed ear. Two second fixed ears are arranged on the clamping component. A pin shaft that is dampedly rotatably connected to the first fixed ear is arranged between the outer walls of the second fixed ears. A wing nut is threaded on one end of the pin shaft that passes through one of the second fixed ears.

[0007] Further, the fixing component includes a limiting plate fixed on the outer wall of the rotating shaft. A moving plate is slidably installed on the outer wall of the rotating shaft on one side of the limiting plate. A spring is sleeved on the outer wall of the rotating shaft between the limiting plate and the moving plate. Matching teeth are arranged on the opposite outer walls of the installation block and the moving plate.

[0008] Further, a slide rail is fixed on the outer wall of the rotating shaft. A guide groove that is slidably connected to the slide rail is opened on the outer wall of the moving plate.

[0009] Further, the clamping assembly includes an L-shaped plate fixed between the outer walls of two second fixed ears. A moving groove is formed on one side of the L-shaped plate. A lead screw is rotatably installed inside the moving groove. A moving block is screwed onto the outer wall of the lead screw. A first clamping plate is fixed to one side of the moving block. Sliders are fixed to both sides of the moving block on the outer wall of the first clamping plate. Sliding grooves connected to the sliders in a sliding manner are formed on the outer wall of the L-shaped plate.

[0010] Further, a runner is fixed to the top of the lead screw.

[0011] Further, two hydraulic cylinders are fixed to the top of the base and on one side of the vertical rod, and the output shafts of the two hydraulic cylinders are arranged oppositely. Second clamping plates are fixed to the output shafts of the two hydraulic cylinders.

[0012] The technical effects achieved by the present utility model are as follows:

[0013] For a positioning fixture for riveting and welding spliced ear plates of the present utility model, the cooperation of the vertical rod, the sliding ring and the first fastening bolt can adjust the up-and-down fixation of the clamped ear plate. The cooperation of the mounting block and the rotating shaft with the fixing assembly can adjust the up-and-down rotation of the clamped ear plate. The first fixed ear, the second fixed ear, the pin shaft and the wing nut can adjust the left-and-right rotation of the clamped ear plate, improving the flexibility of equipment use, with simple operation, accurate positioning of the ear plate, and thus improving the welding quality and overall production efficiency. Description of the Drawings

[0014] Figure 1 is the front three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is the side three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 3 is the Figure 2 enlarged structural schematic diagram of area A in the present utility model;

[0017] Figure 4 is the Figure 2 enlarged structural schematic diagram of area B in the present utility model.

[0018] In the drawings, the list of components represented by each reference numeral is as follows:

[0019] 1. Base; 2. Vertical rod; 3. Sliding ring; 4. First fastening bolt; 5. Mounting block; 6. Rotating shaft; 7. Limiting plate; 8. Spring; 9. Slide rail; 10. Moving plate; 11. Teeth; 12. First fixed ear; 13. Second fixed ear; 14. Wing nut; 15. L-shaped plate; 16. Moving groove; 17. Moving block; 18. Lead screw; 19. First clamping plate; 20. Hydraulic cylinder; 21. Second clamping plate. Detailed implementation mode

[0020] In order to make the purpose and advantages of the present utility clearer, the following specifically describes the present utility in combination with embodiments. It should be understood that the following text is only used to describe one or several specific implementation modes of the present utility, and does not strictly limit the scope of protection of the specific claims of the present utility.

[0021] As Figure 1-2 shown, a positioning fixture for riveting and welding splicing ear plates includes a base 1. A vertical rod 2 is fixed on the top of the base 1. A sliding ring 3 is installed on the outer wall of the vertical rod 2 in a damped sliding manner. A first fastening bolt 4 is screwed through one side of the sliding ring 3, which is convenient for adjusting and fixing the height of the ear plate and is quite practical. A mounting block 5 is fixed on one side of the sliding ring 3. A rotating shaft 6 is installed on one side of the mounting block 5 in a damped rotating manner. A fixing component for limiting and fixing the rotating shaft 6 is arranged on the outer wall of the rotating shaft 6, which is convenient for the fixed ear plate to rotate up and down. The other end of the rotating shaft 6 is fixed with a first fixed ear 12. A clamping component for clamping the ear plate is arranged on one side of the first fixed ear 12. There are two second fixed ears 13 on the clamping component. A pin shaft that is dampedly rotatably connected to the first fixed ear 12 is arranged between the outer walls of the second fixed ears 13. One end of the pin shaft passes through one of the second fixed ears 13 and is screwed with a butterfly nut 14, which is convenient for the fixed ear ear plate to rotate left and right. The structure is simple and the operation is convenient. The ear plate can be clamped and fixed, and the clamped ear plate can be adjusted at multiple angles, enabling the ear plate to be accurately positioned with the plate to be welded, realizing the rapid and accurate positioning of the ear plate, and improving the welding quality and production efficiency;

[0022] As Figure 1-3 shown, the fixing component includes a limiting plate 7 fixed on the outer wall of the rotating shaft 6. A moving plate 10 is slidably installed on the outer wall of the rotating shaft 6 and on one side of the limiting plate 7. A spring 8 is sleeved on the outer wall of the rotating shaft 6 between the limiting plate 7 and the moving plate 10. Tooth teeth 11 that cooperate with each other are arranged on the opposite outer walls of the mounting block 5 and the moving plate 10. By the elastic force of the spring 8, the moving plate 10 is pushed to move. The tooth teeth 11 on the moving plate 10 cooperate with the tooth teeth 11 on the mounting block 5 to prevent the rotating shaft 6 from rotating, which is quite practical; A slide rail 9 is fixed on the outer wall of the rotating shaft 6. A guide groove that is slidably connected to the slide rail 9 is opened on the outer wall of the moving plate 10, making the movement of the moving plate 10 relatively stable;

[0023] As Figure 1 、 2As shown in FIGS. 3 and 4, the clamping assembly includes an L-shaped plate 15 fixed between the outer walls of two second fixing ears 13. A moving groove 16 is formed on one side of the L-shaped plate 15. A lead screw 18 is rotatably installed inside the moving groove 16. A moving block 17 is screwed onto the outer wall of the lead screw 18. A first clamping plate 19 is fixed to one side of the moving block 17. By rotating the lead screw 18, the moving block 17 is driven to move. The moving block 17 drives the first clamping plate 19 to move. The first clamping plate 19 and the bottom plate of the L-shaped plate 15 cooperate to clamp and fix the ear plate, which is quite practical. Sliders are fixed on the outer wall of the first clamping plate 19 and on both sides of the moving block 17. A sliding groove slidably connected to the slider is formed on the outer wall of the L-shaped plate 15, making the movement of the first clamping plate 19 relatively stable; A runner is fixed to the top of the lead screw 18, and the lead screw 18 can be easily rotated by the runner;

[0024] As Figure 1-2 shown, two hydraulic cylinders 20 are fixed on the top of the base 1 and on one side of the vertical rod 2, and the output shafts of the two hydraulic cylinders 20 are arranged oppositely. The output shafts of the two hydraulic cylinders 20 are both fixed with second clamping plates 21, which is convenient for clamping and fixing the plates to be welded to the ear plate, which is quite perfect.

[0025] The working principle of this utility model is as follows: When in use, the plate to be welded to the ear plate is driven by two hydraulic cylinders 20 to drive the two second clamping plates 21 to move, so that the second clamping plates 21 clamp the plate. Then, by rotating the lead screw 18, the moving block 17 is driven to move. The moving block 17 drives the first clamping plate 19 to move. The first clamping plate 19 and the bottom plate of the L-shaped plate 15 cooperate to clamp and fix the ear plate. Move the sliding ring 3 and adjust the vertical height of the ear plate. Then tighten the first fastening bolt 4 so that one end of the first fastening bolt 4 abuts against the vertical rod 2 for fixation. Slide the moving plate 10 to one side so that the teeth 11 on the moving plate 10 are separated from the teeth 11 on the mounting block 5. Then rotate the rotating shaft 6, thereby driving the ear plate to rotate up and down. After adjustment, loosen the moving plate 10. Through the elastic force of the spring 8, the moving plate 10 is pushed to move. The teeth 11 on the moving plate 10 cooperate with the teeth 11 on the mounting block 5 to limit and fix the rotating shaft 6. Loosen the wing nut 14 and rotate the second fixing ear 13 to rotate the ear plate up and down for adjustment. Then tighten the wing nut 14 again. After the adjustment is completed, rivet and weld the ear plate and the plate.

[0026] The above are only the preferred embodiments of this utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model, unless otherwise specifically stated and limited, are implemented according to the conventional means in this field.

Claims

1. A positioning fixture for riveting and welding ear plates, characterized in that: The invention comprises a base (1), a vertical rod (2) being fixed on the top of the base (1), a sliding ring (3) being installed on the outer wall of the vertical rod (2) in a damped sliding manner, a first fastening bolt (4) being screwed through one side of the sliding ring (3), a mounting block (5) being fixed on one side of the sliding ring (3), a rotating shaft (6) being installed on one side of the mounting block (5) in a damped rotation manner, a fixing component capable of limiting and fixing the rotating shaft (6) being arranged on the outer wall of the rotating shaft (6), a first fixing ear (12) being fixed on the other end of the rotating shaft (6), a clamping component capable of clamping the ear plate being arranged on one side of the first fixing ear (12), two second fixing ears (13) being arranged on the clamping component, a pin being provided between the outer walls of the second fixing ears (13) and connected to the first fixing ears (12) in a damped rotation manner, one end of the pin passing through one of the second fixing ears (13) and being screwed on a butterfly nut (14) in a threaded manner.

2. A positioning fixture for riveting and welding ear plates according to claim 1, characterized in that: The fixing assembly comprises a limit plate (7) fixed on the outer wall of the rotating shaft (6), a movable plate (10) slidably mounted on the outer wall of the rotating shaft (6) and located on one side of the limit plate (7), a spring (8) sleeved on the outer wall of the rotating shaft (6) and located between the limit plate (7) and the movable plate (10), and mutually matching teeth (11) are arranged on the opposite outer walls of the mounting block (5) and the movable plate (10).

3. A positioning fixture for riveting and welding ear plates according to claim 2, characterized in that: A slide rail (9) is fixed to the outer wall of the rotating shaft (6), and a guide groove slidably connected to the slide rail (9) is provided on the outer wall of the movable plate (10).

4. A positioning fixture for riveting and welding ear plates according to claim 1, characterized in that: The clamping assembly comprises an L-shaped plate (15) fixed between the outer walls of two second fixing ears (13); a movable groove (16) is provided on one side of the L-shaped plate (15); a screw rod (18) is rotatably installed inside the movable groove (16); a movable block (17) is screwed to the outer wall of the screw rod (18); a first clamping plate (19) is fixed to one side of the movable block (17); sliding blocks are fixed to the outer wall of the first clamping plate (19) and on both sides of the movable block (17); and a sliding groove slidably connected to the sliding block is provided on the outer wall of the L-shaped plate (15).

5. A positioning fixture for riveting and welding ear plates according to claim 4, characterized in that: A rotating wheel is fixed on the top of the screw rod (18).

6. A positioning fixture for riveting and welding ear plates according to claim 1, characterized in that: Two hydraulic cylinders (20) are fixed on the top of the base (1) and located on one side of the vertical rod (2), and the output shafts of the two hydraulic cylinders (20) are arranged opposite to each other. The output shafts of the two hydraulic cylinders (20) are both fixed with a second clamping plate (21).

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