Tool for welding circumference of workpiece

Abstract

The utility model relates to a tool for welding the circumference of a workpiece. The tool comprises a second support. The side wall of the first rotating frame is provided with a first extending edge and is provided with a third groove; the second rotating frame is hinged to the first rotating frame, and a second extension edge matched with the first extension edge to form a whole circle is arranged on the side wall of the second rotating frame; the limiting assembly is arranged at the top of the first rotating frame; the clamp is positioned in the third groove and comprises a third block, a rotating shaft, two groups of symmetrically arranged first clamping pieces and a second clamping piece arranged on the second rotating frame; the rotating assembly is arranged on the second bracket; and the jacking mechanism comprises a second pushing piece, a third rotating frame and a third guide wheel, wherein the second pushing piece drives the third rotating frame in a hinged mode to enable the third guide wheel to make contact with the inner side wall of the second extending edge. The problem that an existing clamping piece is difficult to limit a target workpiece rapidly is solved.

Description

A tooling for circumferential welding of workpieces Technical Field

[0001] This utility model relates to the field of welding, and in particular to a tooling for circumferential welding of workpieces. Background Technology

[0002] In the prior art, a welding positioner is a device used to drag the workpiece to be welded, so that the weld seam is moved to the ideal position for welding.

[0003] Existing welding positioners are equipped with a rotating main turntable, on which several workpieces to be welded are clamped. By rotating the main turntable in sequence, the workpieces to be welded are automatically rotated to the welding torch for welding. Although this improves efficiency, the number of workpieces to be welded that can be clamped on the main turntable is limited. Once all the workpieces to be welded on the main turntable have been welded, the machine needs to be stopped for disassembly, manual loading and unloading, which is very inconvenient and affects the overall welding efficiency. At the same time, existing clamping devices are not good at quickly restricting the target workpiece. Summary of the Invention

[0004] This application provides a tooling for circumferential welding of workpieces, which solves the problem that in the prior art, after all the workpieces to be welded on the main turntable have been welded, the machine needs to be stopped for disassembly, manual loading and unloading, which is very inconvenient and affects the overall welding efficiency; at the same time, the existing clamping parts are difficult to quickly restrict the target workpiece.

[0005] The technical solutions adopted in the embodiments of this application are as follows.

[0006] A tooling for circumferential welding of a workpiece includes a second support; a first rotating frame rotatably disposed within the second support, having a first extension edge on its side wall and a third groove; a second rotating frame hinged to the first rotating frame, having a second extension edge on its side wall that mates with the first extension edge to form a complete circle; a limiting assembly disposed on the top of the first rotating frame; a clamp located within the third groove, comprising a third block, a rotating shaft, two symmetrically arranged sets of first clamping members, and a second clamping member disposed on the second rotating frame; a rotating assembly disposed on the second support; and a lifting mechanism comprising a second pusher, a third rotating frame, and a third guide wheel, wherein the second pusher hingedly drives the third rotating frame to contact the inner side wall of the second extension edge;

[0007] When the first rotating frame and the second rotating frame are closed, they form a fully circular structure with a restricted top. The inner and outer side walls of the first extension are provided with a first guide wheel, and the planar side wall is provided with a second guide wheel.

[0008] As a further improvement to the above technical solution:

[0009] The lifting mechanism also includes a second pushing member disposed on the first rotating frame, the third rotating frame is connected to the first rotating frame through a rotating shaft to form a lever structure, and the third guide wheel and the second extension edge form a rolling contact pair.

[0010] The second bracket is provided with a third pusher, and the first rotating frame is provided with a limit groove. When the working end of the third pusher is inserted into the limit groove, the first rotating frame is circumferentially positioned.

[0011] The first clamping member of the fixture is symmetrically distributed on both sides of the third groove, and the second clamping member is set at the bottom of the second rotating frame using an adjustable clamping mechanism.

[0012] When the first rotating frame and the second rotating frame are closed, an annular constraint surface is formed at the top of the third groove, and the contact surface between the first extension edge and the second extension edge is provided with a wear-resistant coating.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0014] 1. Due to the adoption of a separable, fully circular structure design between the first and second rotating frames, combined with the pitching action of the lifting mechanism, synchronous operation of the welding station and the loading / unloading station is achieved. When the workpiece on the first rotating frame is being welded, the second rotating frame can independently load and unload the workpiece, eliminating the downtime for changing materials in traditional equipment. The first guide wheel synchronously guides the inner and outer walls of the first extension edge, eliminating radial runout of the rotating frame; the second guide wheel applies normal constraints to the planar sidewall; and the instantaneous positioning of the first rotating frame is achieved through the insertion and engagement of the third pushing component and the limiting groove. The adjustable second clamping component is equipped with a pressure sensor, which can adapt to workpieces of different diameters and provide real-time feedback on the clamping force, avoiding workpiece deformation compared to traditional clamps. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the tooling for circumferential welding of the workpiece in this utility model.

[0016] Figure 2 is a schematic diagram of the tooling for circumferential welding of the workpiece in this utility model.

[0017] In the diagram: 1. Second bracket; 2. First rotating frame; 21. First extension edge; 22. Third groove; 23. Limiting groove; 3. Second rotating frame; 31. Second extension edge; 4. First guide wheel; 5. Second guide wheel; 6. Limiting assembly; 61. Third block; 62. Rotating shaft; 63. First clamping member; 64. Second clamping member; 7. Fixture; 8. Lifting mechanism; 81. Second pushing member; 82. Third rotating frame; 83. Third guide wheel; 9. Rotating assembly; 11. Third pushing member. Detailed Implementation

[0018] This application provides a tooling for circumferential welding of workpieces, which solves the problems in the prior art.

[0019] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] A tooling for circumferential welding of a workpiece includes a second support 1; a first rotating frame 2 rotatably disposed within the second support 1, having a first extension edge 21 on its side wall and a third groove 22; a second rotating frame 3 hinged to the first rotating frame 2, having a second extension edge 31 on its side wall that cooperates with the first extension edge 21 to form a complete circle; a limiting component 6 disposed on the top of the first rotating frame 2; a clamp 7 located within the third groove 22, including a third block 61, a rotating shaft 62, two sets of symmetrically arranged first clamping members 63 and a second clamping member 64 disposed on the second rotating frame 3; a rotating component 9 disposed on the second support 1; and a lifting mechanism 8 including a second pusher 81, a third rotating frame 82 and a third guide wheel 83, wherein the second pusher 81 hingedly drives the third rotating frame 82 to make the third guide wheel 83 contact the inner side wall of the second extension edge 31;

[0022] When the first rotating frame 2 and the second rotating frame 3 are closed, they form a fully circular structure with a restricted top. The inner and outer walls of the first extension 21 are provided with a first guide wheel 4, and the planar side wall is provided with a second guide wheel 5.

[0023] The lifting mechanism 8 also includes a second pusher 81 disposed on the first rotating frame 2, a third rotating frame 82 connected to the first rotating frame 2 via a rotating shaft to form a lever structure, and a third guide wheel 83 forming a rolling contact pair with the second extension edge 31.

[0024] The second support 1 is provided with a third pusher 11, and the first rotating frame 2 is provided with a limiting groove 23. When the working end of the third pusher 11 is inserted into the limiting groove 23, the first rotating frame 2 is circumferentially positioned.

[0025] The first clamping member 63 of the clamp 7 is symmetrically distributed on both sides of the third groove 22, and the second clamping member 64 is set at the bottom of the second rotating frame 3 with an adjustable clamping mechanism.

[0026] When the first rotating frame 2 and the second rotating frame 3 are closed, an annular constraint surface is formed at the top of the third groove 22, and the contact surface between the first extension 21 and the second extension 31 is provided with a wear-resistant coating.

[0027] Due to the adoption of a separable circular structure design between the first rotating frame 2 and the second rotating frame 3, and in conjunction with the pitching action of the lifting mechanism 8, the welding station and the loading / unloading station can operate synchronously. When the workpiece on the first rotating frame 2 is being welded, the second rotating frame 3 can independently load and unload the workpiece, eliminating the downtime for changing materials in traditional equipment. The first guide wheel 4 synchronously guides the inner and outer walls of the first extension edge 21, eliminating radial runout of the rotating frame; the second guide wheel 5 applies normal constraints to the planar sidewall; and the first rotating frame 2 is instantly positioned by the insertion and engagement of the third pushing member 11 and the limiting groove 23. The adjustable second clamping member 64 is equipped with a pressure sensor, which can adapt to workpieces of different diameters and provide real-time feedback on the clamping force, avoiding workpiece deformation compared to traditional clamps 7.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A tooling for circumferential welding of a workpiece, characterized in that, Includes a second support (1); a first rotating frame (2) rotatably disposed within the second support (1), having a first extension edge (21) on its side wall and a third groove (22); a second rotating frame (3) hinged to the first rotating frame (2), having a second extension edge (31) on its side wall that cooperates with the first extension edge (21) to form a complete circle; a limiting assembly (6) disposed on the top of the first rotating frame (2); and a clamp (7) located within the third groove (22), comprising a third block (61), a rotating shaft (62), two sets of symmetrically arranged first clamping members (63), and a clamp disposed on the second rotating frame (2). The second clamping member (64) of the frame (3); the rotating assembly (9) disposed on the second support (1); and the lifting mechanism (8) comprising a second pusher (81), a third rotating frame (82) and a third guide wheel (83), wherein the second pusher (81) hingedly drives the third rotating frame (82) to make the third guide wheel (83) contact the inner sidewall of the second extension (31); when the first rotating frame (2) and the second rotating frame (3) are closed, they form a top-restricted circular structure, and the inner and outer sidewalls of the first extension (21) are provided with a first guide wheel (4), and the planar sidewall is provided with a second guide wheel (5).

2. The tooling for circumferential welding of a workpiece as described in claim 1, characterized in that, The lifting mechanism (8) further includes a second pusher (81) disposed on the first rotating frame (2), the third rotating frame (82) is connected to the first rotating frame (2) through a rotating shaft to form a lever structure, and the third guide wheel (83) and the second extension edge (31) form a rolling contact pair.

3. The tooling for circumferential welding of a workpiece as described in claim 1, characterized in that, The second bracket (1) is provided with a third pusher (11), and the first rotating frame (2) is provided with a limiting groove (23). When the working end of the third pusher (11) is inserted into the limiting groove (23), the first rotating frame (2) is circumferentially positioned.

4. The tooling for circumferential welding of a workpiece as described in claim 1, characterized in that, The first clamping member (63) of the clamp (7) is symmetrically distributed on both sides of the third groove (22), and the second clamping member (64) is set at the bottom of the second rotating frame (3) with an adjustable clamping mechanism.

5. The tooling for circumferential welding of a workpiece as described in claim 1, characterized in that, When the first rotating frame (2) and the second rotating frame (3) are closed, an annular constraint surface is formed at the top of the third groove (22), and the contact surface of the first extension (21) and the second extension (31) is provided with a wear-resistant coating.

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