Rack for welding cylindrical workpiece

Abstract

A rack for welding cylindrical workpieces belongs to the technical field of welding and comprises a workbench with a cavity, a sliding groove is formed in the upper surface of the workbench, two movable plates are installed in the sliding groove in a relatively sliding mode, convex plates are rotatably installed on the opposite faces of the two movable plates, and a driving mechanism is arranged in the cavity of the workbench. Four lifting mechanisms are symmetrically and fixedly installed on the upper surface of the workbench, the lifting mechanisms are located between the two movable plates, each lifting mechanism comprises a U-shaped frame, lifting wheels are rotatably installed on the left side and the right side of each U-shaped frame, the front lifting wheel and the rear lifting wheel are used in cooperation to support a cylindrical workpiece, and an H-shaped supporting frame is fixedly installed on the upper surface of the workbench; according to the clamping device, the two movable plates can move inwards and outwards through the driving mechanism, two cylindrical workpieces needing to be welded are clamped and fixed through the convex plates on the movable plates, the welding position can be aligned through the correcting mechanism before clamping, operation is convenient, fast and efficient, and the clamping effect is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, and particularly relates to a bench for welding cylindrical workpieces. Background Art

[0002] During the process of welding and processing workpieces, a bench is needed to support the workpieces, facilitating welding operations on the workpieces within the bench. The presence of the bench provides a stable foundation for welding work.

[0003] After retrieval, an authorized patent in the related field with the publication number: CN219521038U and the patent name of a bench for welding workpieces has a specific structure including an operating table. The four corners of the bottom of the operating table are welded and fixed with support frames. A sliding frame is slidably connected to the top of the operating table. A positioning mechanism is assembled between the sliding frame and the operating table, and a cleaning mechanism is assembled inside the side wall of the operating table.

[0004] For the bench for welding workpieces in the above-mentioned prior art, due to its special fixing structure, when clamping and fixing the workpiece, it is necessary to operate the adjusting screw in sequence to drive the fixing block to move downward, which is cumbersome in operation. Moreover, when the fixing block clamps the cylindrical workpiece, the contact area is small, affecting the fixing effect. In addition, after the cylindrical workpiece is clamped, it is not convenient to adjust the welding surface. Therefore, another bench for welding cylindrical workpieces is provided to solve this problem. Summary of the Utility Model

[0005] Aiming at the problems existing in the bench for welding workpieces in the prior art, that is, it is cumbersome in operation and has a weak clamping and fixing effect on cylindrical workpieces during adjustment and use, the utility model provides a bench for welding cylindrical workpieces, which can make two movable plates move in and out by means of a driving mechanism, clamp and fix two cylindrical workpieces to be welded through the convex plates on the movable plates. Before clamping, the welding joints can be aligned by relying on a calibration mechanism, with convenient and efficient operation and strong clamping effect. In addition, during welding, the movable plate can be manually rotated to turn over the cylindrical workpiece to adjust the welding surface, improving the convenience during welding operations, and effectively solving the problems of cumbersome operation and poor clamping and fixing effect on cylindrical workpieces when the bench for welding workpieces in the prior art is adjusted and used. The specific technical solution is as follows:

[0006] A bench for welding cylindrical workpieces, comprising a workbench with a cavity. A chute is provided on the upper surface of the workbench. Two movable plates are slidably installed relative to each other in the chute. Convex plates are rotatably installed on the opposite surfaces of the two movable plates. A driving mechanism for driving the two movable plates to move synchronously inward or outward is arranged in the cavity of the workbench. Four lifting mechanisms are symmetrically and fixedly installed on the upper surface of the workbench. The lifting mechanisms are located between the two movable plates, and each lifting mechanism includes a U-shaped frame. Lifting wheels are rotatably installed on the left and right sides of the U-shaped frame. The front and rear two lifting wheels are used in cooperation to support the cylindrical workpiece. An H-shaped support frame is fixedly installed on the upper surface of the workbench. An alignment mechanism is rotatably installed in the H-shaped support frame. The alignment mechanism is used to align the welding joints of two cylindrical workpieces.

[0007] In the above technical solution, the driving mechanism includes a forward and reverse motor and a forward and reverse threaded bidirectional screw. The forward and reverse motor is fixedly installed on the left side of the workbench. The forward and reverse threaded bidirectional screw is rotatably arranged in the cavity of the workbench. The left end of the forward and reverse threaded bidirectional screw is fixedly connected to the output end of the forward and reverse motor. The two movable plates are relatively screwed and installed on the outer surface of the forward and reverse threaded bidirectional screw.

[0008] In the above technical solution, a controller is fixedly installed on the upper surface of the workbench. The controller is electrically connected to the forward and reverse motor.

[0009] In the above technical solution, the alignment mechanism includes a flap. The flap is rotatably installed in the H-shaped support frame through a transfer shaft. An arc-shaped groove is provided on the side of the flap close to the lifting mechanism after the flap is flipped. A handle rod is fixedly installed at the end of the flap away from the H-shaped support frame.

[0010] In the above technical solution, rubber pads are fixedly installed on the sides of the convex plates close to the lifting mechanism.

[0011] In the above technical solution, handwheels are fixedly installed on the sides of the convex plates facing away from the lifting mechanism.

[0012] A bench for welding cylindrical workpieces of the present utility model, compared with the prior art, has the beneficial effects as follows:

[0013] The present utility model can make the two movable plates move inward and outward by means of the driving mechanism, clamp and fix two cylindrical workpieces to be welded through the convex plates on the movable plates. Before clamping, the welding joints can be aligned by relying on the alignment mechanism. The operation is convenient, efficient and the clamping effect is strong. In addition, during welding, the movable plates can be manually rotated to flip the cylindrical workpieces to adjust the welding surface, improving the convenience during welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view structural schematic diagram of the present utility model.

[0015] Figure 2 This is a schematic rear view structure of the present utility model.

[0016] Figure 3 This is a schematic structure diagram of the movable plate of the present utility model.

[0017] Figure 4 This is a schematic structure diagram when calibrating two cylindrical workpieces of the present utility model.

[0018] Figure 5 This is a schematic structure diagram after fixing two cylindrical workpieces of the present utility model

[0019] Figures 1-5 Among them: 1. Workbench; 11. Slide groove; 12. H-shaped support frame; 2. Lifting mechanism; 21. U-shaped frame; 22. Lifting wheel; 3. Calibration mechanism; 31. Flap; 311. Arc groove; 32. Handle rod; 4. Movable plate; 41. Convex plate; 411. Rubber pad; 42. Handwheel; 5. Driving mechanism; 51. Forward and reverse motor; 52. Forward and reverse thread bidirectional screw; 53. Controller. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The front, rear, left, right, up and down in this embodiment are described with Figure 1 as the reference plane. Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0022] A bench for welding cylindrical workpieces includes a workbench 1 with a cavity. A slide groove 11 is opened on the upper surface of the workbench 1. Two movable plates 4 are slidably installed relative to each other in the slide groove 11. Convex plates 41 are rotatably installed on the opposite surfaces of the two movable plates 4. A driving mechanism 5 for driving the two movable plates 4 to move synchronously inward or outward is arranged in the cavity of the workbench 1. Four lifting mechanisms 2 are symmetrically and fixedly installed on the upper surface of the workbench 1. The lifting mechanisms 2 are located between the two movable plates 4, and each lifting mechanism 2 includes a U-shaped frame 21. Lifting wheels 22 are rotatably installed on the left and right sides of the U-shaped frame 21. The front and rear two lifting wheels 22 are used in cooperation to support the cylindrical workpiece. An H-shaped support frame 12 is fixedly installed on the upper surface of the workbench 1. A calibration mechanism 3 is rotatably installed in the H-shaped support frame 12. The calibration mechanism 3 is used to align the welding joints of the two cylindrical workpieces;

[0023] It should be noted that, as Figure 1 shown, the driving mechanism 5 includes a forward and reverse motor 51 and a forward and reverse thread double screw 52. The forward and reverse motor 51 is fixedly installed on the left side of the workbench 1. The forward and reverse thread double screw 52 is rotatably arranged in the cavity of the workbench 1. The left end of the forward and reverse thread double screw 52 is fixedly connected to the output end of the forward and reverse motor 51. Two movable plates 4 are relatively screwed and installed on the outer surface of the forward and reverse thread double screw 52. A controller 53 is fixedly installed on the upper surface of the workbench 1. The controller 53 is electrically connected to the forward and reverse motor 51;

[0024] After the forward and reverse motor 51 is powered on and started through the controller 53, by selecting forward or reverse rotation, it can drive the two movable plates 4 to move synchronously inward or outward through the forward and reverse motor 51, so as to realize the clamping work of the two cylindrical workpieces;

[0025] During use, in combination with Figure 1 、 Figure 4 and Figure 5 shown, first place the two cylindrical workpieces between the front and rear lifting wheels 22. Then, use the alignment mechanism 3 to press down and align the welding ends of the two cylindrical workpieces. Then, through the controller 53, control the forward and reverse motor 51 to drive the forward and reverse thread double screw 52 to rotate, move the two movable plates 4 inward, so as to drive the two convex plates 41 to move synchronously towards the cylindrical workpiece direction, clamp and fix the two butted cylindrical workpieces together. At this time, turn the alignment mechanism 3 backward. After leaving a welding space, use a welding device for welding. During the welding process, any one of the convex plates 41 can be manually rotated to drive the cylindrical workpiece to rotate, so as to complete the flipping of the welding surface, so as to facilitate continuous welding work. The clamping process of the cylindrical workpiece and the operation of flipping the welding surface for welding are more convenient to operate compared with the prior art, and can improve the welding efficiency.

[0026] In addition, as Figure 1 shown, the alignment mechanism 3 includes a flap 31. The flap 31 is rotatably installed in the H-shaped support frame 12 through a transfer shaft. An arc-shaped groove 311 is formed on the side of the flap 31 close to the lifting mechanism 2 after flipping. A handle rod 32 is fixedly installed at the end of the flap 31 away from the H-shaped support frame 12. When aligning the welding joints of the two cylindrical workpieces, use the handle rod 32 to drive the flap 31 to flip forward, so that the arc-shaped groove 311 closely fits the welding joints of the two cylindrical workpieces, realizing the alignment of the welding joints of the two cylindrical workpieces, and then completing the alignment work.

[0027] In addition, to prevent the convex plate 41 from causing clamping marks on the cylindrical workpiece during the clamping process, which may affect the quality of the workpiece, as Figure 1As shown in the figure, rubber pads 411 are fixedly installed on one side of the convex plate 41 close to the lifting mechanism 2. The rubber pads 411 can be used to contact the cylindrical workpiece instead of the convex plate 41, thereby reducing the clamping damage to the cylindrical workpiece during the clamping process.

[0028] Finally, to facilitate the rotation of the convex plate 41 to adjust the welding surface of the cylindrical workpiece, as Figure 1 shown in the figure, handwheels 42 are fixedly installed on one side of the convex plate 41 facing away from the lifting mechanism 2. The convex plate 41 can be driven to rotate by operating the handwheels 42, thereby driving the cylindrical workpiece to adjust the welding surface.

Claims

1. A welding stand for cylindrical workpieces, comprising a workbench (1) with a cavity, characterized in that: The upper surface of the workbench (1) is provided with a slide groove (11), two movable plates (4) are relatively slidably mounted in the slide groove (11), and convex plates (41) are rotatably mounted on the opposite surfaces of the two movable plates (4), and a driving mechanism (5) for driving the two movable plates (4) to move synchronously inward or outward is arranged in the cavity of the workbench (1); Four lifting mechanisms (2) are symmetrically fixedly mounted on the upper surface of the workbench (1), the lifting mechanisms (2) are located between the two movable plates (4), and the lifting mechanisms (2) each include a U-shaped frame (21), and lifting wheels (22) are rotatably mounted on both left and right sides of the U-shaped frame (21), and the front and rear lifting wheels (22) cooperate to support the cylindrical workpiece; An H-shaped support frame (12) is fixedly mounted on the upper surface of the workbench (1), and a calibration mechanism (3) is rotatably mounted inside the H-shaped support frame (12). The calibration mechanism (3) is used to align the welding points of two cylindrical workpieces.

2. A cylindrical workpiece welding stand according to claim 1, characterized in that: The driving mechanism (5) comprises a forward and reverse motor (51) and a forward and reverse bidirectional screw (52); the forward and reverse motor (51) is fixedly mounted on the left side of the workbench (1); the forward and reverse bidirectional screw (52) is rotatably arranged in the cavity of the workbench (1); the left end of the forward and reverse bidirectional screw (52) is fixedly connected to the output end of the forward and reverse motor (51); and the two movable plates (4) are relatively screw-connected and mounted on the outer surface of the forward and reverse bidirectional screw (52).

3. A welding stand for cylindrical workpieces according to claim 2, characterized in that: A controller (53) is fixedly mounted on the upper surface of the workbench (1), and the controller (53) is electrically connected to the forward and reverse motor (51).

4. A welding stand for cylindrical workpieces according to claim 1, characterized in that: The proofreading mechanism (3) comprises a flap (31), wherein the flap (31) is rotatably mounted in the H-shaped support frame (12) via a transfer shaft, and an arc-shaped groove (311) is provided on a side of the flap (31) close to the lifting mechanism (2) after the flap (31) is turned over, and a handle bar (32) is fixedly mounted on one end of the flap (31) away from the H-shaped support frame (12).

5. The cylindrical workpiece welding stand according to claim 1, characterized in that: A rubber pad (411) is fixedly mounted on one side of the convex plate (41) close to the lifting mechanism (2).

6. A welding stand for cylindrical workpieces according to claim 5, characterized in that: A hand wheel (42) is fixedly mounted on one side of the convex plate (41) facing away from the lifting mechanism (2).

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