Self-adaptive clamp for welding parts

Abstract

The utility model relates to a self-adaptive clamp for welding parts, and belongs to the technical field of welding. Comprising a bottom plate, a circular adjusting cylinder, a first clamping assembly and a second clamping assembly, the circular adjusting cylinder and the first clamping assembly are fixedly connected with the bottom plate, the first clamping assembly is fixedly connected with the side wall of the circular adjusting cylinder, the second clamping assembly is connected with the circular adjusting cylinder through a connecting assembly, and a strip-shaped hole corresponding to the second clamping assembly is formed in the side wall of the circular adjusting cylinder. The strip-shaped hole extends in the horizontal direction, the second clamping assembly can slide along the periphery of the circular adjusting cylinder, the first clamping assembly comprises a first fixed clamping block and a first movable clamping block, the first fixed clamping block is fixedly connected with the circular adjusting cylinder, and the first movable clamping block can move in the direction close to or away from the first fixed clamping block. The welding device is simple in structure and can adapt to welding of different sizes and different angles, the number of movable parts is greatly reduced, the welding angle of a welding part is easy to adjust, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an adaptive clamp for welding parts, belonging to the technical field of welding. Background Art

[0002] In modern industrial production, welding is one of the most important processes for connecting metal parts. Traditional welding fixtures are usually fixed and difficult to adapt to parts of different shapes and sizes, resulting in low production efficiency and unstable processing quality.

[0003] Chinese patent CN216758780U discloses an adjustable welding fixture, including a base plate, two clamping blocks 1 and 2 that can be moved at will, and a clamping block 3 that slides along the surface of the base plate. The surface of the base plate is provided with screw holes in a square array, and the surfaces of the clamping blocks 1 and 2 are both provided with fixing holes that are compatible with the screw holes. The width of the fixing holes is the same as the diameter of the screw holes and the length is elongated. The screw holes and the fixing holes are connected and fixed by butterfly screws and gaskets. By opening an array of screw holes on the surface of the base plate and using multiple clamping blocks 1, 2 and 3, users can freely install the clamping blocks for clamping and fixing, and it is also convenient to adjust the clamping angle and the clamping position. The tail of the clamping block 3 is used in conjunction with a worm gear through a screw rod, which can facilitate the user to freely rotate and adjust the position of the screw rod, thereby changing the clamping degree between the clamping block and the weldment, making it convenient for the user to place or remove the weldment for use.

[0004] The problems with the above patents are: (1) The fixture design contains multiple moving parts, which makes operation complicated and increases the difficulty of manufacturing and maintenance. (2) Moving parts, such as rotating rods, spinning plates, and butterfly screws, will wear out due to frequent use, affecting the durability and reliability of the fixture. (3) The operator needs to spend a long time to adjust the fixture to suit the specific weldment, which affects production efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide an adaptive clamp for welding parts, which has a simple structure and can adapt to welding of different sizes and angles, greatly reduces the number of movable parts, is easy to adjust the welding angle of the welded parts, and improves production efficiency.

[0006] The utility model discloses an adaptive clamp for welding parts, comprising a base plate, a circular adjustment cylinder, a first clamping assembly and a second clamping assembly. The circular adjustment cylinder and the first clamping assembly are fixedly connected to the base plate, the first clamping assembly is fixedly connected to the side wall of the circular adjustment cylinder, the second clamping assembly is connected to the circular adjustment cylinder via a connecting assembly, a strip hole is provided on the side wall of the circular adjustment cylinder corresponding to the second clamping assembly, the strip hole is extended in the horizontal direction, the second clamping assembly can slide along the outer circumference of the circular adjustment cylinder, the first clamping assembly comprises a first fixed clamping block and a first movable clamping block, the first fixed clamping block is fixedly connected to the circular adjustment cylinder, and the first movable clamping block can move toward or away from the first fixed clamping block. The movable clamping block's ability to move enables the clamp to adapt to welding parts of different sizes and shapes, thereby increasing the clamp's versatility. The operator can adjust the position of the movable clamping block according to the specific size of the welding part to achieve the best clamping effect.

[0007] An elastic element is positioned between the first fixed clamping block and the first movable clamping block to provide cushioning and assist in positioning during the clamping process. This element reduces impact on the welded parts during clamping, protecting the surface from damage. Furthermore, the elastic element automatically adjusts the clamping block position to accommodate parts of varying sizes, enhancing the clamp's adaptability and ease of use.

[0008] The first clamping assembly further includes a first drive mechanism, a first movable clamping block connected to an output end of the first drive mechanism, which is fixedly connected to the base plate. The drive mechanism is a pneumatic or hydraulic cylinder. The first movable clamping block is precisely controlled by the pneumatic or hydraulic cylinder, thereby improving the adaptability and operational flexibility of the clamp.

[0009] The second clamping assembly includes a second fixed clamping block and a second movable clamping block. The second fixed clamping block is connected to the circular adjustment cylinder via a connecting assembly. The second movable clamping block can move toward or away from the second fixed clamping block. The operator can adjust the angle between the second fixed clamping block and the first fixed clamping block according to the welding angle.

[0010] The second clamping assembly further includes a second drive mechanism, a second movable clamping block connected to an output end of the second drive mechanism, and a removable connection between the second drive mechanism and the base plate. When welding parts at different angles, the second movable clamping block is adjusted in accordance with the adjustment of the second fixed clamping block. The removable connection between the second drive mechanism and the base plate facilitates adjustment of the position of the second movable clamping block.

[0011] The base plate is provided with a sliding arc groove corresponding to the second drive mechanism. The sliding arc groove is arranged concentrically with the circular adjustment cylinder. A protrusion is provided on the bottom of the second drive mechanism, which slides into the sliding arc groove. The second drive mechanism can move along the sliding arc groove concentric with the circular adjustment cylinder, providing flexible positioning capabilities and allowing the drive mechanism to adjust its position as needed. The concentric sliding arc groove ensures smooth movement of the second drive mechanism along a predetermined circular trajectory, facilitating precise control of the drive mechanism's position.

[0012] The connection assembly includes a bolt and a nut. The top end of the bolt is fixedly connected to the second fixing block, and the nut is threadedly connected to the bottom end of the bolt. After the bolt passes through the strip hole in the circular adjustment tube, the nut is tightened to secure the second fixing block to the circular adjustment tube, preventing the second fixing block from moving during welding.

[0013] A gasket is placed between the nut and the circular adjustment tube. This increases the contact area between the nut and the circular adjustment tube, thereby improving the fastening force. It also absorbs material expansion or contraction caused by temperature changes, maintaining the stability of the connection.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The utility model realizes the welding of parts by providing a circular adjustment cylinder, a first clamping assembly, a base plate and a second clamping assembly. The structure is simple and easy to produce and maintain. The second clamping assembly can slide along the outer circumference of the circular adjustment cylinder, so that the clamp can be adjusted according to the welding angle to achieve more precise welding. The strip hole extends in the horizontal direction, making the sliding adjustment of the second clamping assembly simple and quick, reducing the time for replacing or adjusting the clamp, thereby improving production efficiency. The first clamping assembly is fixedly connected to the side wall of the circular adjustment cylinder, providing a stable structural foundation to ensure that the parts will not be displaced during the clamping process.

[0016] (2) An elastic element is provided between the first fixed clamping block and the first movable clamping block to provide cushioning and assist positioning during the clamping process. The provision of the elastic element can reduce the impact on the welded parts during the clamping process and protect the surface of the parts from damage. At the same time, the elastic element can also automatically adjust the position of the clamping blocks to a certain extent to accommodate parts of different sizes, thereby improving the adaptability and ease of use of the clamp.

[0017] (3) A sliding arc groove is provided on the bottom plate corresponding to the second drive mechanism. The sliding arc groove is arranged concentrically with the circular adjustment cylinder. A protrusion is provided at the bottom of the second drive mechanism, and the protrusion can slide and fit within the sliding arc groove. The second drive mechanism can move along the sliding arc groove concentric with the circular adjustment cylinder, providing flexible positioning capabilities, so that the drive mechanism can adjust its position as needed. The concentric sliding arc groove ensures that the second drive mechanism moves smoothly along the predetermined circular trajectory, which helps to accurately control the position of the drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of Example 1 of the utility model;

[0020] Figure 3 It is a welding schematic diagram of the present utility model.

[0021] In the figure: 1. Base plate; 2. Second driving mechanism; 3. Sliding arc groove; 4. Second movable clamping block; 5. Second fixed clamping block; 6. Strip hole; 7. Circular adjustment cylinder; 8. First driving mechanism; 9. First movable clamping block; 10. First fixed clamping block; 11. Bolt; 12. Nut; 13. Welding part. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments:

[0023] Example 1

[0024] like Figures 1 to 3 As shown, the utility model describes an adaptive fixture for welding parts, comprising a base plate 1, a circular adjustment cylinder 7, a first clamping assembly and a second clamping assembly. The circular adjustment cylinder 7 and the first clamping assembly are fixedly connected to the base plate 1, the first clamping assembly is fixedly connected to the side wall of the circular adjustment cylinder 7, and the second clamping assembly is connected to the circular adjustment cylinder 7 through a connecting assembly. A strip hole 6 is provided on the side wall of the circular adjustment cylinder 7 corresponding to the second clamping assembly. The strip hole 6 extends in the horizontal direction, and the second clamping assembly can slide along the outer circumference of the circular adjustment cylinder 7.

[0025] The first clamping assembly includes a first fixed clamping block 10 and a first movable clamping block 9. The first fixed clamping block 10 is fixedly connected to the circular adjustment cylinder 7, and the first movable clamping block 9 can move toward or away from the first fixed clamping block 10. An elastic element is provided between the first fixed clamping block 10 and the first movable clamping block 9 to provide cushioning and assist positioning during the clamping process. The first clamping assembly also includes a first drive mechanism 8. The first movable clamping block 9 is connected to the output end of the first drive mechanism 8, which is fixedly connected to the base plate 1. The drive mechanism is a pneumatic cylinder or a hydraulic cylinder.

[0026] The second clamping assembly includes a second fixed clamping block 5 and a second movable clamping block 4. The second fixed clamping block 5 is connected to the circular adjustment cylinder 7 via a connecting assembly. The second movable clamping block 4 can move toward or away from the second fixed clamping block 5. The second clamping assembly also includes a second drive mechanism 2. The second movable clamping block 4 is connected to the output end of the second drive mechanism 2, and the second drive mechanism 2 is detachably connected to the base plate 1. The base plate 1 is provided with a sliding arc groove 3 corresponding to the second drive mechanism 2. The sliding arc groove 3 is arranged concentrically with the circular adjustment cylinder 7. The bottom of the second drive mechanism 2 is provided with a protrusion that slidably fits within the sliding arc groove 3.

[0027] The connection assembly includes a bolt 11 and a nut 12. The top end of the bolt 11 is fixedly connected to the second fixing clamp 5, and the nut 12 is threadedly connected to the bottom end of the bolt 11. A gasket is provided between the nut 12 and the circular adjustment cylinder 7.

[0028] Working process: The operator adjusts the position of the first movable clamping block 9 via the first driving mechanism 8 according to the size of the first weld 13 to be clamped, moving it closer to or further away from the first fixed clamping block 10 to accommodate the size of the weld 13. Then, the operator adjusts the position of the second movable clamping block 4 via the second driving mechanism 2 according to the size of the second weld 13 to be clamped. Then, the operator adjusts the positions of the second fixed clamping block 5, the second movable clamping block 4, and the second driving mechanism 2 according to the welding angle of the weld 13, so that they slide along the outer circumference of the circular adjustment cylinder 7 to accommodate the welding angle of the parts.

[0029] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention and is only for the convenience of description.

Claims

1. An adaptive fixture for welding parts, characterized in that: The invention comprises a base plate (1), a circular adjustment cylinder (7), a first clamping assembly and a second clamping assembly. The circular adjustment cylinder (7) and the first clamping assembly are fixedly connected to the base plate (1). The first clamping assembly is fixedly connected to the side wall of the circular adjustment cylinder (7). The second clamping assembly is connected to the circular adjustment cylinder (7) through a connecting assembly. A strip hole (6) is provided on the side wall of the circular adjustment cylinder (7) corresponding to the second clamping assembly. The strip hole (6) is extended in the horizontal direction. The second clamping assembly can slide along the outer periphery of the circular adjustment cylinder (7). The first clamping assembly comprises a first fixed clamping block (10) and a first movable clamping block (9). The first fixed clamping block (10) is fixedly connected to the circular adjustment cylinder (7). The first movable clamping block (9) can move toward or away from the first fixed clamping block (10).

2. The adaptive fixture for welding parts according to claim 1, characterized in that: An elastic element is provided between the first fixed clamping block (10) and the first movable clamping block (9) for providing buffering and auxiliary positioning during the clamping process.

3. The adaptive fixture for welding parts according to claim 2, characterized in that: The first clamping assembly also includes a first driving mechanism (8), a first movable clamping block (9) is connected to the output end of the first driving mechanism (8), the first driving mechanism (8) is fixedly connected to the base plate (1), and the driving mechanism is a cylinder or a hydraulic cylinder.

4. The adaptive fixture for welding parts according to any one of claims 1 to 3, characterized in that: The second clamping assembly comprises a second fixed clamping block (5) and a second movable clamping block (4); the second fixed clamping block (5) is connected to the circular adjustment cylinder (7) via a connecting assembly; and the second movable clamping block (4) can move toward or away from the second fixed clamping block (5).

5. The adaptive fixture for welding parts according to claim 4, characterized in that: The second clamping assembly further comprises a second driving mechanism (2), a second movable clamping block (4) is connected to the output end of the second driving mechanism (2), and the second driving mechanism (2) is detachably connected to the base plate (1).

6. The adaptive fixture for welding parts according to claim 5, characterized in that: A sliding arc groove (3) is provided on the bottom plate (1) corresponding to the second driving mechanism (2), the sliding arc groove (3) and the circular adjustment cylinder (7) are arranged concentrically, and a protrusion is provided on the bottom of the second driving mechanism (2), and the protrusion can be slidably matched in the sliding arc groove (3).

7. The adaptive fixture for welding parts according to claim 6, characterized in that: The connecting assembly comprises a bolt (11) and a nut (12), wherein the top end of the bolt (11) is fixedly connected to the second fixing clamp (5), and the nut (12) is connected to the bottom end of the bolt (11) via a thread.

8. The adaptive fixture for welding parts according to claim 7, characterized in that: A gasket is provided between the nut (12) and the circular adjusting cylinder (7).

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