A welding fixture

Abstract

The utility model discloses a kind of welding tool, comprising: support, place in work platform, for providing support and welding station;Fastener, it is installed on support oppositely, for locking and limiting panel to be welded;Wherein, support and a group of fastener are enclosed to form weld groove between it.This welding tool of fixed panel is formed by fastener oppositely installed on support in the utility model, after inserting panel measurement check size, locking and fixing, and support and a group of fastener are enclosed to form the weld groove of placing welding wire between it, after using tool conduction, welding can effectively reduce the misplacement, step difference and deformation of welding, effectively improve production efficiency and product yield.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and specifically to a welding tooling. Background Technology

[0002] High-pressure oil tanks are used in the medical manufacturing field to withstand high pressure. During manufacturing, a set of "half-shells" (half of the tank body) need to be welded together. This can balance the complexity of the structure, performance requirements and manufacturing feasibility: the half-shells can be flexibly processed with internal supports, interfaces and other complex details through stamping and other processes, which makes it easier to ensure accuracy than integral molding; welding can form a continuous and dense joint with strength close to that of the base material, which can evenly distribute internal pressure. Moreover, the processing of half-shells can be carried out in parallel and the welding is easy to standardize, which can effectively improve the efficiency of mass production.

[0003] Due to insufficient positioning accuracy and poor stability of tooling fixtures, significant misalignment can easily occur when welding parts are joined. This manifests as the center axis of the mating surface deviating from the preset benchmark and the deviation of key assembly hole positions exceeding the allowable range, directly affecting the accurate assembly of subsequent components. At the same time, obvious step differences can easily appear on the mating surfaces of the two parts to be welded, that is, there is a height difference between the two sides of the joint after welding. This not only damages the flatness of the product appearance, but may also lead to subsequent problems such as reduced sealing performance and abnormal friction noise of moving parts, significantly reducing the product yield. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] Support components, placed on the work platform, are used to provide support and welding stations;

[0007] Fasteners, mounted facing each other on the support, are used to lock and limit the panel to be welded;

[0008] The support member and a set of fasteners together form a weld groove.

[0009] As a further description of the above technical solution, the support member has a first mounting hole through it, and the fastener has a second mounting hole through it.

[0010] As a further description of the above technical solution, the first mounting hole is symmetrically arranged in multiple sets, and the second mounting hole is symmetrically arranged in multiple sets.

[0011] As a further description of the above technical solution, a connector is installed in the first mounting hole of the support member and the second mounting hole of the fastener, and the support member and the fastener are detachably connected through the connector.

[0012] As a further description of the above technical solution, the fastener has a beveled portion on one side.

[0013] As a further description of the above technical solution, the angle of the inclined surface is 45° to 75°.

[0014] As a further description of the above technical solution, a limiting groove is formed in the middle of the other side of the fastener.

[0015] As a further description of the above technical solution, the width of the limiting groove is less than three-fifths of the width of the panel (3).

[0016] As a further description of the above technical solution, the beveled surfaces of the fastener are arranged facing each other.

[0017] As a further description of the above technical solution, the inclined surface and the support member together form a weld groove.

[0018] The beneficial effects of this utility model are as follows:

[0019] In this invention, fasteners are installed facing each other on a support to form a welding fixture for fixing a panel. After inserting the panel and measuring and verifying the dimensions, the fasteners are locked in place. The support and a set of fasteners together form a weld groove for placing welding wire. Welding is performed after the fixture is conductive. This can effectively reduce welding misalignment, step difference and deformation, and effectively improve production efficiency and product yield.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is an exploded view of the welding fixture of this utility model;

[0022] Figure 2 This is an installation diagram of the welding fixture of this utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the structure after the middle panel is assembled;

[0024] Figure 4 yes Figure 2 Schematic diagram of the structure after welding of the middle panel Figure 1 ;

[0025] Figure 5 yes Figure 2 Schematic diagram of the structure after welding of the middle panel Figure 2 ;

[0026] Figure 6 yes Figure 5Enlarged schematic diagram of point I in the middle.

[0027] Figure label:

[0028] 1. Support component; 11. First mounting hole; 2. Fastener; 21. Second mounting hole; 22. Angled part; 23. Limiting groove; 3. Panel; 4. Weld groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figures 1-6 As shown, in one embodiment, a welding fixture includes: a support 1 and a fastener 2;

[0031] Among them, the support 1 is placed on the work platform, which can provide a stable support benchmark for the entire welding process. Furthermore, its flat working surface on top provides a welding operation position, ensuring that the panel to be welded 3 is always in a stable spatial posture during the welding process. The fasteners 2 are installed on the support 1 facing each other, and are used to lock and limit the panel to be welded 3.

[0032] In addition, the support member 1 and a set of fasteners 2 can be joined together to form a weld groove 4, which is used to place welding wire to weld the preset weld points on the edges of the two combined U-shaped panels 3.

[0033] Specifically, the materials of support 1 and fastener 2 can be high-performance metal materials such as beryllium copper: high strength characteristics ensure that the fixture is not easily deformed under the long-term clamping force of panel 3 and welding impact force, maintaining structural stability; excellent conductivity enables it to efficiently conduct welding current, avoiding local welding defects caused by uneven current distribution; rapid heat absorption and dissipation capabilities can promptly remove the local high temperature generated during the welding process, preventing the fixture from affecting positioning accuracy due to thermal deformation and extending the service life of the fixture.

[0034] For example, the support member 1 has a first mounting hole 11 through it, and the fastener 2 has a corresponding second mounting hole 21 through it; specifically, multiple sets of the first mounting holes 11 and multiple sets of the second mounting holes 21 are symmetrically arranged, which can ensure that the fastener 2 is subjected to uniform force when connected to the support member 1.

[0035] It is understandable that the first mounting hole 11 of the support member 1 and the second mounting hole 21 of the fastener 2 are respectively fitted with connecting parts (such as screws or bolts, etc., as is the prior art). Figure 1(Not shown in the image), so that the support 1 and the fastener 2 form a detachable rigid connection structure, which not only facilitates the disassembly, maintenance and replacement of welding fixtures, but also ensures the flatness of the panel 3 to be welded in the clamped state by precisely adjusting the locking force of the connector, and reduces welding deviation caused by the gap of the fixture connection.

[0036] Please continue reading. Figure 1 In this embodiment, a beveled portion 22 is provided on one side of the fastener 2; correspondingly, a limiting groove 23 is provided in the middle of the other side of the fastener 2.

[0037] Specifically, the angle of the beveled part 22 is 45° to 75°, which can be adapted to the welding requirements of panels 3 of different thicknesses; and the width of the limiting groove 23 is less than three-fifths of the width of the panel 3, ensuring that the edge of the panel 3 can be smoothly embedded in the groove, effectively constraining the lateral displacement and preventing the panel 3 from shifting laterally during the welding process.

[0038] It should be explained in detail that the inclined surfaces 22 of the fastener 2 are arranged facing each other, so that the inclined surfaces 22 of the fastener 2 can be closed with the top of the support 1 to form a V-shaped weld groove 4, ensuring sufficient welding operation space and meeting the welding requirements of the inner and outer sides of the panel 3.

[0039] Working principle: Fasteners 2 are placed facing each other on support 1 to form a welding fixture for fixing panel 3, and the two U-shaped panels 3 are then joined together as follows: Figure 2 Assemble the panel onto the welding fixture using a hex wrench. Tighten multiple hex socket screws (e.g., M8*12) onto the welding fixture. Before tightening, measure the external dimensions on both sides (e.g., 541mm and 170mm). Only tighten the fixture after confirming that the dimensions are correct to ensure that panel 3 is in a rigid fixed state during the welding process.

[0040] Welding wire is placed on the weld groove 4 formed between the support 1 and the fastener 2. After the tooling is used to conduct the current, welding is performed (for example, full welding is performed at a current of 55A to 65A, the surface weld height is ≤1.5mm, and the flatness after welding is ±0.3mm). After the internal welding of the panel 3 is completed, the external welding of the panel 3 is performed accordingly. After the welding is completed, the welding fixture is removed after the workpiece cools down. Then the outer gap is welded (for example, high-frequency pull welding is performed at a current of 55A to 65A). After one side of the panel 3 is welded, the other side is welded in the same way. Finally, the welding slag is removed as required.

[0041] Through the above technical solutions, the welding fixture of this application effectively constrains the displacement and deformation trend of the panel 3 during the welding process from the perspective of the fixture structure by means of the stable support of the support member 1, the precise positioning and rigid locking of the fastener 2, and the guiding role of the weld groove 4. This significantly reduces problems such as welding misalignment, joint gaps and thermal deformation. At the same time, the standardized operating procedures and stable fixture performance reduce the probability of defective products, reduce rework and scrap costs, and thus effectively improve production efficiency and product yield.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding fixture, characterized in that, include: Support (1) is placed on the work platform to provide support and welding station; Fasteners (2) are mounted on the support (1) facing each other and are used to lock and limit the panel to be welded (3); The support member (1) and a set of fasteners (2) together form a weld groove (4).

2. The welding fixture according to claim 1, characterized in that, The support member (1) has a first mounting hole (11) through it, and the fastener (2) has a second mounting hole (21) through it.

3. The welding fixture according to claim 2, characterized in that, The first mounting hole (11) is symmetrically arranged in multiple sets, and the second mounting hole (21) is symmetrically arranged in multiple sets.

4. The welding fixture according to claim 2, characterized in that, The first mounting hole (11) of the support member (1) and the second mounting hole (21) of the fastener (2) are fitted with connectors, and the support member (1) and the fastener (2) are detachably connected by the connectors.

5. The welding fixture according to claim 2, characterized in that, The fastener (2) has a beveled part (22) on one side.

6. The welding fixture according to claim 5, characterized in that, The angle of the inclined surface (22) is 45° to 75°.

7. The welding fixture according to claim 2, characterized in that, A limiting groove (23) is provided in the middle of the other side of the fastener (2).

8. The welding fixture according to claim 7, characterized in that, The width of the limiting groove (23) is less than three-fifths of the width of the panel (3).

9. The welding fixture according to claim 5, characterized in that, The inclined portions (22) of the fastener (2) are arranged facing each other.

10. The welding fixture according to claim 9, characterized in that, The inclined surface (22) and the support member (1) together form a weld groove (4).

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