A kind of metal pipe adjustable joint welding tool clamp of preventing electrode retreat
By adding a mounting base and anti-retraction bolts to the rear of the electrode contour positioning seat, the problem of the electrode contour positioning seat retracting due to cylinder pressure was solved, thus improving welding quality and reducing modification costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN VERITAS AUTOMOTIVE SYST CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-26
AI Technical Summary
The existing electrode contour positioning base plate is connected by a long bolt with a hole, which causes the contour positioning base to move backward when the cylinder drives the contour clamping block to press down, affecting the welding quality.
A mounting base and anti-retraction bolt are added to the rear of the electrode contour positioning seat. The mounting base is fixed to the base plate by bolts. The anti-retraction bolt abuts against the electrode contour positioning seat to prevent it from retracting.
It improves welding quality, has a simple structure, is easy to modify, and reduces modification costs.
Smart Images

Figure CN224406764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to an adjustable spot welding fixture for metal tubes that prevents electrode retraction. Background Technology
[0002] Welding is required in various fields. In the automotive manufacturing industry, the number of metal tubes welded in different applications is large, and the requirements for welding quality are high. Currently, spot welding fixtures are used for positioning when welding electrodes to metal tubes. However, the existing electrode contour positioning seat base plate is connected by a long bolt with a hole. When the cylinder drives the contour clamping block to press down, the contour positioning seat moves backward due to the cylinder pressure, which easily produces defective products and leads to substandard welding quality. Utility Model Content
[0003] The purpose of this utility model is to solve the problem that the existing electrode contour positioning seat base plate is connected by a long bolt connection, and when the cylinder drives the contour clamping block to press down, the contour positioning seat position moves backward due to the cylinder pressure, which easily produces defective products. Therefore, this utility model provides an adjustable spot welding fixture for metal tubes that prevents electrode backward movement.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable spot welding fixture for metal tubes with anti-electrode retraction, comprising:
[0005] An electrode contouring positioning seat is provided with an electrode contouring groove and a first screw hole at the bottom. The electrode contouring positioning seat is connected to the substrate by a bolt in the first screw hole.
[0006] An anti-retraction assembly includes a mounting base and an anti-retraction bolt. The mounting base is connected to the substrate and is located on the side of the electrode contour positioning seat away from the electrode contour groove. The mounting base is provided with at least one second screw hole, and the anti-retraction bolt is screwed into the second screw hole, with the anti-retraction bolt abutting against the electrode contour positioning seat.
[0007] As a further description of the above technical solution:
[0008] The mounting base is an L-shaped plate.
[0009] As a further description of the above technical solution:
[0010] The mounting base has at least one third screw hole at its bottom.
[0011] As a further description of the above technical solution:
[0012] The electrode contour positioning seat has an avoidance notch at the bottom, and the mounting seat portion is located within the avoidance notch.
[0013] As a further description of the above technical solution:
[0014] A pad is provided at the bottom of the electrode contour positioning seat.
[0015] As a further description of the above technical solution:
[0016] The side of the gasket that contacts the substrate is a rough surface.
[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: by adding a mounting base and an anti-retraction bolt to the rear of the electrode contouring positioning seat, the mounting base is fixedly connected to the base plate by bolts, and the anti-retraction bolt is screwed onto the mounting base. In this way, the anti-retraction bolt can hold the electrode contouring positioning seat in place, and the contouring electrode will not retract due to cylinder pressure, which can improve the processing quality; the structure is simple, easy to modify, and can reduce modification costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of an adjustable spot welding fixture for metal tubes designed to prevent electrode retraction.
[0020] Figure 2 This is a reference diagram showing the usage status of an adjustable spot welding fixture for metal tubes designed to prevent electrode retraction.
[0021] Legend:
[0022] 1. Electrode contour positioning seat; 2. Electrode contour groove; 3. First screw hole; 4. Base plate; 5. Mounting seat; 6. Anti-retraction bolt; 7. Second screw hole; 8. Third screw hole; 9. Gasket. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-2This utility model provides a technical solution: an adjustable spot welding fixture for metal tubes with anti-electrode retraction, comprising:
[0025] Electrode contouring positioning seat 1, the electrode contouring positioning seat 1 is provided with electrode contouring groove 2, the bottom of the electrode contouring positioning seat 1 is provided with a first screw hole 3, and the electrode contouring positioning seat 1 is connected to the substrate 4 by bolts in the first screw hole 3.
[0026] The anti-retraction component includes a mounting base 5 and an anti-retraction bolt 6. The mounting base 5 is connected to the base plate 4 and is located on the side of the electrode contour positioning seat 1 away from the electrode contour groove 2. The mounting base 5 is provided with at least one second screw hole 7, and the anti-retraction bolt 6 is screwed into the second screw hole 7 and abuts against the electrode contour positioning seat 1.
[0027] The mounting base 5 is an L-shaped plate. The L-shaped plate facilitates the installation of anti-retraction bolts, allowing the anti-retraction bolts to easily abut against the electrode contour positioning base.
[0028] The mounting base 5 has at least one third screw hole 8 at its bottom. A bolt passes through the third screw hole to facilitate the installation and removal of the mounting base.
[0029] The electrode contour positioning seat 1 has a clearance notch at its bottom, and the mounting seat 5 is partially located within the clearance notch. In this way, the mounting seat can also serve as a limiting device.
[0030] The bottom of the electrode contour positioning seat 1 is provided with a shim 9. The height of the electrode contour positioning seat can be adjusted by setting the number of shims.
[0031] The side of the gasket 9 that contacts the substrate 4 is a rough surface. The rough surface can increase friction.
[0032] Working principle: By adding a mounting base and anti-retraction bolt to the rear of the electrode contouring positioning seat, the mounting base is fixedly connected to the base plate by bolts, and the anti-retraction bolt is screwed onto the mounting base. In this way, the anti-retraction bolt can hold the electrode contouring positioning seat in place, and the contouring electrode will not retract due to cylinder pressure, which can improve the processing quality; the structure is simple, easy to modify, and can reduce modification costs.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An adjustable spot welding fixture for metal tubes with anti-electrode retraction, characterized in that, include: An electrode contouring positioning seat is provided with an electrode contouring groove and a first screw hole at the bottom. The electrode contouring positioning seat is connected to the substrate by a bolt in the first screw hole. An anti-retraction assembly includes a mounting base and an anti-retraction bolt. The mounting base is connected to the substrate and is located on the side of the electrode contour positioning seat away from the electrode contour groove. The mounting base is provided with at least one second screw hole, and the anti-retraction bolt is screwed into the second screw hole, with the anti-retraction bolt abutting against the electrode contour positioning seat.
2. The adjustable spot welding fixture for metal tubes with anti-electrode retraction as described in claim 1, characterized in that, The mounting base is an L-shaped plate.
3. The adjustable spot welding fixture for metal tubes with anti-electrode retraction as described in claim 1, characterized in that, The mounting base has at least one third screw hole at its bottom.
4. The adjustable spot welding fixture for metal tubes with anti-electrode retraction as described in claim 1, characterized in that, The electrode contour positioning seat has an avoidance notch at the bottom, and the mounting seat portion is located within the avoidance notch.
5. The adjustable spot welding fixture for metal tubes with anti-electrode retraction as described in claim 1, characterized in that, A pad is provided at the bottom of the electrode contour positioning seat.
6. The adjustable spot welding fixture for metal tubes with anti-electrode retraction as described in claim 5, characterized in that, The side of the gasket that contacts the substrate is a rough surface.