Welding fixing structure

Abstract

The utility model discloses a welding fixing structure, which belongs to the technical field of workpiece welding, aims at solving the problem that a fixing mechanism is single in clamping direction, and comprises a workbench, a plurality of supporting columns are fixedly connected to the bottom of the workbench, a plurality of supporting plates are fixedly connected to the top of the workbench, and a concave groove frame is fixedly connected to the tops of every two supporting plates. The handle is arranged to drive the threaded rod to rotate, so that the threaded rod drives the trapezoidal push block to move upwards, the first clamping plate moves upwards, the trapezoidal push block moves upwards, and meanwhile, under the action of the guide wheel, the trapezoidal push block moves upwards, so that the first clamping plate and the second clamping plate are clamped. The two second supporting rods move towards the outer side to drive the two first supporting rods to contract towards the inner side, so that the two second clamping plates move towards the inner side, the two second clamping plates are matched with the first clamping plates, workpieces are clamped and fixed in three directions, and the clamping device can be suitable for workpieces of different sizes and shapes and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece welding, and in particular relates to a welding fixing structure. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasound. In addition to being used in factories, welding can also be carried out in a variety of environments, such as outdoors, underwater and in space. During the welding process, the workpiece and solder melt to form a molten area. After the molten pool cools and solidifies, a connection between the materials is formed. In actual welding work, a fixed structure is needed to position the workpiece to be welded to ensure the welding quality.

[0003] The prior art discloses a fixing device for welding steel structures with a patent announcement number of CN217291077U. The above patent provides a fixing clamp for welding steel structures of different shapes to avoid welding size deviation and loose welding caused by loose fixation of materials of different shapes. The device is provided with a replaceable clamp plug to facilitate replacement of the clamp, and has a simple structure and convenient operation. However, the following deficiencies still exist in actual use: from a practical point of view, when fixing the workpiece, the device can only generate extrusion force on the workpiece from two directions, thereby clamping and fixing the workpiece. However, when facing a tubular workpiece or a special-shaped workpiece, two clamps in the same direction cannot be effectively clamped. When the clamping force is increased, the special-shaped workpiece is prone to fall off.

[0004] Therefore, a welding fixing structure is needed to solve the problem of single clamping direction of the fixing mechanism in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a welding fixing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding fixed structure, including a workbench, a plurality of support columns are fixedly connected to the bottom of the workbench, a plurality of support plates are fixedly connected to the top of the workbench, a concave slot frame is fixedly connected to the top of every two support plates, a threaded rod is rotatably connected to the center position of the bottom of the concave slot frame, a trapezoidal push block is rotatably connected to the top of the threaded rod, a first universal joint is fixedly connected to the top of the trapezoidal push block, a first clamping plate is installed on the top of the first universal joint, a handle is fixedly connected to the bottom of the threaded rod, and the bottom of the trapezoidal push block Two guide columns are fixedly connected, and two connecting plates are fixedly connected to the inner walls on both sides of the concave groove frame, a rotating shaft is fixedly connected between every two connecting plates, and the outer walls of the two rotating shafts are rotatably connected with mounting sleeves, the tops of the two mounting sleeves are fixedly connected with a first support rod, the inner walls of the two first support rods are fixedly connected with a second universal joint, the inner walls of the two second universal joints are installed with a second clamping plate corresponding to the first clamping plate, the bottoms of the two mounting sleeves are fixedly connected with a second support rod, and the bottoms of the two second support rods are installed with guide wheels corresponding to the trapezoidal push blocks.

[0007] It should be noted in the solution that the bottoms of the plurality of support columns are fixedly connected with anti-skid shock-absorbing pads.

[0008] It is further worth noting that a threaded hole groove corresponding to the threaded rod is opened at the center position of the bottom of the concave groove frame.

[0009] It should be further explained that through holes corresponding to the guide columns are provided at the bottom of the concave groove frame near both sides.

[0010] As a preferred embodiment, a plurality of the connecting plates are symmetrically arranged on the inner walls on both sides of the concave groove frame.

[0011] As a preferred embodiment, soft protective pads are fixedly connected to the inner walls of the first clamping plate and the second clamping plate.

[0012] As a preferred embodiment, the two guide wheels are both rollingly fitted to the outer walls on both sides of the trapezoidal push block.

[0013] Compared with the prior art, the present invention provides a welding fixing structure, which at least includes the following

[0014] Beneficial effects:

[0015] (1) A handle is set to drive the threaded rod to rotate, so that the threaded rod drives the trapezoidal push block to move upward, thereby causing the first clamping plate to move upward. While the trapezoidal push block moves upward, under the action of the guide wheel, the two second support rods move outward to drive the two first support rods to retract inward, thereby causing the two second clamping plates to move inward. The two second clamping plates cooperate with the first clamping plates to clamp and fix the workpiece from three directions. This method can be applied to workpieces of different sizes and shapes, has a simple structure, and is easy to operate.

[0016] (2) By arranging the first universal joint and the second universal joint to cooperate with the first clamping plate and the second clamping plate respectively, the angles of the first clamping plate and the second clamping plate can be flexibly changed, and the first clamping plate and the second clamping plate can be more fully and tightly fitted with the outer wall of the workpiece during the clamping process, thereby improving the firmness of the clamping, avoiding the shaking of the workpiece during clamping, and ensuring the accuracy of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 3 This is an enlarged view of the interior of the concave slot frame of the utility model from the first perspective;

[0020] Figure 4 This is an enlarged view of the interior of the concave slot frame of the utility model from a second perspective.

[0021] In the figure: 1. workbench; 2. support column; 3. support plate; 4. concave groove frame; 5. threaded rod; 6. trapezoidal push block; 7. first universal joint; 8. first clamping plate; 9. handle; 10. guide column; 11. connecting plate; 12. rotating shaft; 13. mounting sleeve; 14. first support rod; 15. second universal joint; 16. second clamping plate; 17. second support rod; 18. guide wheel. DETAILED DESCRIPTION

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

[0023] See also Figure 1-4The utility model provides a welding fixed structure, including a workbench 1, a plurality of support columns 2 are fixedly connected to the bottom of the workbench 1, a plurality of support plates 3 are fixedly connected to the top of the workbench 1, a concave slot frame 4 is fixedly connected to the top of every two support plates 3, a threaded rod 5 is rotatably connected to the center position of the bottom of the concave slot frame 4, a trapezoidal push block 6 is rotatably connected to the top of the threaded rod 5, a first universal joint 7 is fixedly connected to the top of the trapezoidal push block 6, a first clamping plate 8 is installed on the top of the first universal joint 7, a handle 9 is fixedly connected to the bottom of the threaded rod 5, two guide columns 10 are fixedly connected to the bottom of the trapezoidal push block 6, and the concave slot frame Two connecting plates 11 are fixedly connected to the inner walls of both sides, a rotating shaft 12 is fixedly connected between each two connecting plates 11, the outer walls of the two rotating shafts 12 are rotatably connected to the mounting sleeves 13, the tops of the two mounting sleeves 13 are fixedly connected to the first support rods 14, the inner walls of the two first support rods 14 are fixedly connected to the second universal joints 15, the inner walls of the two second universal joints 15 are installed with the second clamping plates 16 corresponding to the first clamping plates 8, the bottoms of the two mounting sleeves 13 are fixedly connected to the second support rods 17, and the bottoms of the two second support rods 17 are installed with guide wheels 18 corresponding to the trapezoidal push blocks 6.

[0024] Further as Figure 1 and Figure 2 As shown, it is worth explaining in detail that the bottoms of the multiple support columns 2 are fixedly connected with anti-skid shock-absorbing pads to ensure that the workbench 1 always remains stable during the welding process, avoiding shaking of the workbench 1 and ensuring the stability of the welding work.

[0025] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that a threaded hole groove corresponding to the threaded rod 5 is opened at the center position of the bottom of the concave groove frame 4. Under the action of the threaded hole groove, the threaded rod 5 can be lifted and lowered while rotating, providing power for the movement of the trapezoidal push block 6, thereby providing power for the movement of the first clamping plate 8 and the second clamping plate 16.

[0026] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that through holes corresponding to the guide columns 10 are opened near the two sides of the bottom of the concave groove frame 4. The guide columns 10 guide and limit the movement of the trapezoidal push block 6, ensuring that the trapezoidal push block 6 can only move in the vertical direction, making the movement of the trapezoidal push block 6 more stable.

[0027] According to the above working process, it can be known that: by setting the handle 9 to drive the threaded rod 5 to rotate, the threaded rod 5 drives the trapezoidal push block 6 to move upward, thereby causing the first clamping plate 8 to move upward. While the trapezoidal push block 6 moves upward, under the action of the guide wheel 18, the two second support rods 17 move outward to drive the two first support rods 14 to shrink inward, thereby causing the two second clamping plates 16 to move inward. The two second clamping plates 16 cooperate with the first clamping plate 8 to clamp and fix the workpiece from three directions, which can be suitable for workpieces of different sizes and shapes, with a simple structure and easy operation.

[0028] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the plurality of connecting plates 11 are symmetrically arranged on the inner walls of both sides of the concave groove frame 4, so that the two second clamping plates 16 can move simultaneously, thereby clamping the workpiece more stably.

[0029] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the inner walls of the first clamping plate 8 and the second clamping plate 16 are fixedly connected with soft protective pads, which protect the clamped workpieces and avoid damage to the workpiece body due to excessive force during the clamping process.

[0030] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the two guide wheels 18 are both rollingly fitted to the outer walls of the trapezoidal push block 6, ensuring that the movement of the trapezoidal push block 6 can drive the two guide wheels 18 to move outward at the same time, thereby providing power for the movement of the second clamping plate 16.

[0031] This solution has the following working process: in actual use, the workpiece to be welded is placed on the top of the first clamping plate 8, and then the handle 9 is turned to drive the threaded rod 5 to rotate, so that the threaded rod 5 drives the trapezoidal push block 6 to move upward, thereby causing the first clamping plate 8 to move upward. While the trapezoidal push block 6 moves upward, under the action of the guide wheel 18, the two second support rods 17 move outward to drive the two first support rods 14 to shrink inward, thereby causing the two second clamping plates 16 to move inward. The two second clamping plates 16 cooperate with the first clamping plate 8 to clamp and fix the workpiece from three directions.

[0032] In summary: by setting the handle 9 to drive the threaded rod 5 to rotate, the threaded rod 5 drives the trapezoidal push block 6 to move upward, so that the first clamping plate 8 moves upward, and under the action of the trapezoidal push block 6, the two second clamping plates 16 move inward, and the two second clamping plates 16 cooperate with the first clamping plate 8 to clamp and fix the workpiece from three directions, which can be suitable for workpieces of different sizes and shapes, with a simple structure and easy operation; by setting the first universal joint 7 and the second universal joint 15 to cooperate with the first clamping plate 8 and the second clamping plate 16 respectively, the angles of the first clamping plate 8 and the second clamping plate 16 can be flexibly changed, and the outer wall of the workpiece is more fully and tightly fitted during the clamping process, thereby improving the firmness of the clamping, avoiding the shaking of the workpiece during clamping, and ensuring the accuracy of welding.

Claims

1. A welding fixing structure, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a plurality of support columns (2), the top of the workbench (1) is fixedly connected to a plurality of support plates (3), the tops of every two of the support plates (3) are fixedly connected to a concave slot frame (4), the bottom center position of the concave slot frame (4) is rotatably connected to a threaded rod (5), the top of the threaded rod (5) is rotatably connected to a trapezoidal push block (6), the top of the trapezoidal push block (6) is fixedly connected to a first universal joint (7), the top of the first universal joint (7) is equipped with a first clamping plate (8), the bottom of the threaded rod (5) is fixedly connected to a handle (9), the bottom of the trapezoidal push block (6) is fixedly connected to two guide columns (10), the inner walls on both sides of the concave slot frame (4) are fixedly connected to the bottom of the threaded rod (5), and the bottom of the trapezoidal push block (6) is fixedly connected to the first universal joint (7). Two connecting plates (11) are fixedly connected, a rotating shaft (12) is fixedly connected between each two connecting plates (11), the outer walls of the two rotating shafts (12) are rotatably connected with mounting sleeves (13), the tops of the two mounting sleeves (13) are fixedly connected with first support rods (14), the inner walls of the two first support rods (14) are fixedly connected with second universal joints (15), the inner walls of the two second universal joints (15) are installed with second clamping plates (16) corresponding to the first clamping plates (8), the bottoms of the two mounting sleeves (13) are fixedly connected with second support rods (17), and the bottoms of the two second support rods (17) are installed with guide wheels (18) corresponding to the trapezoidal push blocks (6).

2. A welding fixing structure according to claim 1, characterized in that: The bottoms of the plurality of support columns (2) are all fixedly connected with anti-skid shock-absorbing pads.

3. A welding fixing structure according to claim 1, characterized in that: A threaded hole groove corresponding to the threaded rod (5) is provided at the center of the bottom of the concave groove frame (4).

4. A welding fixing structure according to claim 1, characterized in that: Through holes corresponding to the guide columns (10) are provided at the bottom of the concave slot frame (4) near both sides.

5. A welding fixing structure according to claim 1, characterized in that: The plurality of connecting plates (11) are symmetrically arranged on the inner walls of both sides of the concave groove frame (4).

6. A welding fixing structure according to claim 1, characterized in that: The inner walls of the first clamping plate (8) and the second clamping plate (16) are both fixedly connected with soft protective pads.

7. A welding fixing structure according to claim 1, characterized in that: The two guide wheels (18) are both rollingly fitted to the outer walls on both sides of the trapezoidal push block (6).

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