Quick-change projection welding tool

Abstract

The utility model relates to the technical field of projection welding production of automobile parts, in particular to a quick-change projection welding tool. Clamp positioning mechanisms used for fixing the clamp foundation are arranged on the two sides of the base, and a part positioning mechanism is arranged on the clamp foundation. The positioning device is small and light in structure, capable of quickly positioning, flexible, convenient and quick, and a plurality of part positioning mechanisms can be disassembled, assembled and replaced. The feasibility of clamp operation is achieved, the quality of the production process is controllable, and the requirement of clamp operation for gaps of parts is lowered. And cost waste and manpower waste are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of convex welding production of automobile parts, in particular to a quick-change convex welding tooling Background Art

[0002] With the development of the automobile industry, domestic automobile brands have emerged in large numbers. The types of white body parts are increasing, and the structural forms are various, resulting in the development of fixture welding technology. The parts are updated rapidly, which leads to the rapid iteration of fixture tooling products, causing unnecessary waste and increased labor force. However, for the structure of the parts themselves, the utility model can realize the rapid replacement of fixture tooling for welding production, which greatly improves the feasibility of parts production, the quality of the production process is controllable, and the weldability and safety of products are improved. Summary of the Invention

[0003] To solve the above technical problems, the utility model provides a quick-change fixture tooling.

[0004] The technical solution adopted by the utility model is as follows: a quick-change fixture, fixture positioning mechanisms for fixing the fixture base are arranged on both sides of the base, and a part positioning mechanism is arranged on the fixture base.

[0005] For the above quick-change fixture, the structure of the fixture positioning mechanism is: two vertical lugs are arranged on the fixed block, a pressing block is arranged between the two lugs, a rotating shaft is arranged at one end of the lug and the pressing block, and a positioning pin is arranged at the other end.

[0006] For the above quick-change fixture, slide rails are arranged on both sides of the base, and the fixture positioning mechanism is connected with the slider on the slide rail.

[0007] For the above quick-change fixture, a plurality of positioning pins I are arranged on the base for positioning the fixture base.

[0008] For the above quick-change fixture, the structure of the part positioning mechanism is: a vertical connecting piece is arranged on the bottom plate, and positioning blocks matching the size and shape of the part are arranged on the top surface and the side surface of the connecting piece.

[0009] For the above quick-change fixture, a cylinder is arranged on the bottom plate, and a positioning pin II is arranged at the telescopic end of the cylinder.

[0010] The utility model provides a quick-change fixture tooling, which has the following beneficial effects: the structure of the utility model is small, light, and can be quickly positioned, and the disassembly, assembly and replacement of multiple sets of part positioning mechanisms are flexible, convenient and fast. The feasibility of fixture operation is realized, the quality of the production process is controllable, and the requirements for the clearance of the parts themselves in fixture operation are relaxed. Cost waste and labor waste are reduced. Brief Description of the Drawings

[0011] Figure 1It is a top view of a quick-change projection welding tooling.

[0012] Figure 2 It is a structural schematic diagram of the base and positioning.

[0013] Figure 3 It is a structural schematic diagram of the part positioning mechanism.

[0014] Figure 4 It is a structural schematic diagram of the part positioning mechanism from another angle.

[0015] In the figure: 1. Base, 2. Rotating shaft, 3. Fixture positioning mechanism, 4. Fixture base, 5. Part positioning mechanism, 6. Positioning pin, 7. Positioning pin I, 8. Part, 9. Sensor, 10. Positioning pin II, 11. Positioning block, 12. Connecting piece, 13. Cylinder, 14. Base plate. Specific implementation mode

[0016] As Figures 1-4 shown, for a quick-change fixture, slide rails are provided on both sides of the base 1, sliders are provided on the slide rails, and the fixture positioning mechanism 3 is connected to the sliders. The fixture positioning mechanism 3 is used to fix the fixture base 4. There are 4 fixture positioning mechanisms 3, and a part positioning mechanism 5 is provided on the fixture base 4.

[0017] The structure of the fixture positioning mechanism 3 is: there are two vertical lugs on the fixed block, a pressing block is provided between the two lugs, a rotating shaft 2 is provided at one end of the lug and the pressing block, and a positioning pin 6 is provided at the other end.

[0018] A number of positioning pins I 7 are provided on the base 1 for positioning the fixture base 4.

[0019] The structure of the part positioning mechanism 5 is: a vertical connecting piece 12 is provided on the base plate 14, and positioning blocks 11 matching the size and shape of the part are provided on the top surface and side surface of the connecting piece 12.

[0020] A cylinder 13 is provided on the base plate 14, a positioning pin II 10 is provided at the telescopic end of the cylinder 13, the positioning pin II 10 is inserted into the part 8 to be welded, and the sensor 9 on the positioning block 11 senses the part 8 to be welded, then welding can be carried out.

[0021] Usage method: For the part 8 to be welded, place the corresponding part positioning mechanism 5 on the base 1, slide the fixture positioning mechanism 3 so that the fixture positioning mechanism 3 contacts the part positioning mechanism 5, turn on the fixture positioning mechanism 3 to make the pressing block press the fixture base 4, and use the positioning pin 6 to fix the pressing block. Place the part 8 on the connecting piece 12, and the positioning blocks 11 at the top and side fix the part 8. The cylinder 13 drives the positioning pin II 10 to pass through the positioning pin hole on the part 8 for further positioning. Then carry out the next process.

[0022] The part positioning mechanism 5 is fixed on the base 1 through the fixture positioning mechanism 3, which not only ensures the positioning of the part positioning mechanism 5, but also enables the part positioning mechanism 5 to be quickly separated from the base 1 to replace other part positioning mechanisms 5. It can achieve quick positioning and quick installation. It solves the problems of inability to quickly switch during multi-product welding and high manufacturing cost of the fixture workstation. When switching to a new product, the whole set of mechanisms is replaced, and it can be compatible with various part sizes, greatly reducing the debugging difficulty and saving time.

[0023] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several variations and improvements can be made, which should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A quick-change projection welding tooling, characterized in that On both sides of the base (1), there are fixture positioning mechanisms (3) for fixing the fixture base (4), and a part positioning mechanism (5) is provided on the fixture base (4); the structure of the fixture positioning mechanism (3) is: there are two vertical lugs on the fixed block, a pressing block is arranged between the two lugs, a rotating shaft (2) is provided at one end of the lug and the pressing block, and a positioning pin (6) is provided at the other end; the structure of the part positioning mechanism (5) is: a vertical connecting piece (12) is provided on the bottom plate (14), positioning blocks (11) matching the size and shape of the part are provided on the top surface and the side surface of the connecting piece (12), a cylinder (13) is provided on the bottom plate (14), and a positioning pin II (10) is provided at the telescopic end of the cylinder (13).

2. The quick-change projection welding tooling according to claim 1, characterized in that, Sliding rails are provided on both sides of the base (1), and the fixture positioning mechanism (3) is connected to the slider on the sliding rail.

3. The quick-change projection welding tooling according to claim 1, wherein A number of positioning pins I (7) are provided on the base (1) for positioning the fixture base (4).

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