Automatic welding machine special fixture

Abstract

This utility model relates to the field of VCR valve welding technology, and more particularly to an automatic welding machine's special-shaped fixture. It includes a valve, a fixture assembly on the valve, and a VCR connector on the fixture assembly. By using the fixture assembly, the welding fixture precisely positions and supports the tube through a bottom circular hole, while the top hexagonal hole allows the nut and welding connector to pass through and effectively engage the VCR connector. This not only ensures a tight fit between the tube and the welding connector end face during welding, but also greatly optimizes welding conditions, significantly reduces the risk of welding deformation, and ensures welding quality and the sealing stability of fluid transport. Furthermore, the welding fixture shortens the distance between the valve and the VCR connector, further reducing the valve size and achieving high integration.

Description

Technical Field

[0001] This utility model relates to the field of VCR valve welding technology, and in particular to special-shaped fixtures for automatic welding machines. Background Technology

[0002] Automatic welding machine fixtures are devices specifically designed for automated welding to precisely hold workpieces in place, thereby ensuring the stability and accuracy of the welding process.

[0003] However, when traditional automatic welding machine fixtures are used to weld valves and VCR connectors, the welding spacing is limited by a rigid process lower limit of 12.7mm. This makes it difficult to compress the distance between the valve and the VCR connector, forcing the valve to retain redundant dimensions to accommodate the fixed stroke of the fixture. This not only directly hinders the miniaturization and lightweight design of the equipment, but also restricts the layout of multi-channel pipelines due to excessive occupation of system space, weakening the adaptability of the valve in narrow working conditions and high-density integration scenarios. Utility Model Content

[0004] The purpose of this invention is to provide an automatic welding machine with a special-shaped fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a valve, on which a clamp assembly is provided, and on which a VCR connector is provided.

[0006] As a preferred embodiment of this invention, the valve is provided with a tube.

[0007] As a preferred embodiment of this utility model, a nut is provided at one end of the VCR connector, and a welded joint is provided inside the nut.

[0008] As a preferred embodiment of the present invention, the clamp assembly includes a welding clamp located between the valve and the VCR connector. The bottom of the welding clamp has a circular hole corresponding to the TUBE pipe, and the top of the welding clamp has a hexagonal hole corresponding to the VCR connector.

[0009] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: This invention features a fixture assembly. The welding fixture precisely positions and supports the tube through a circular hole at the bottom, while the hexagonal hole at the top allows the nut and welding joint to pass through and effectively engage the VCR connector. This not only ensures a tight fit between the tube and the welding joint end face during welding but also greatly optimizes welding conditions, significantly reduces the risk of welding deformation, and ensures welding quality and the sealing stability of fluid transport. Furthermore, the welding fixture shortens the distance between the valve and the VCR connector, further reducing the valve size and achieving high integration. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the valve structure of this utility model; Figure 3 This is a schematic diagram of the VCR connector structure of this utility model; Figure 4 This is a schematic diagram of the fixture assembly structure of this utility model.

[0011] Reference numerals: Valve 1, TUBE pipe 11, clamp assembly 2, welding clamp 21, circular hole 22, hexagonal hole 23, VCR connector 31, nut 32, welding joint 33. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0013] like Figures 1-4 As shown, the automatic welding machine special-shaped fixture proposed in this utility model includes a valve 1, a fixture assembly 2 is provided on the valve 1, and a VCR connector 31 is provided on the fixture assembly 2.

[0014] A tube 11 is installed on valve 1. The tube 11 serves as a fluid transport pipe, and its end face is in close contact with the end face of the welded joint 33 to provide a welding surface for welding operations, ensuring the continuity and sealing of fluid transport after welding.

[0015] A nut 32 is provided at one end of the VCR connector 31. The nut 32 serves as a connecting component between the VCR connector 31 and the valve 1. It achieves a threaded connection by rotation, fixing the VCR connector 31 onto the valve 1. At the same time, it provides support and positioning for the welding joint 33, ensuring a tight fit between the welding joint 33 and the end face of the TUBE pipe 11 during the welding process. The welding joint 33 is housed inside the nut 32. As a welding component that directly contacts the end face of the TUBE pipe 11, the welding joint 33 has its end face tightly fitted with the end face of the TUBE pipe 11, providing a specific welding surface for the welding operation. Through welding, a permanent connection with the TUBE pipe 11 is achieved, ensuring the sealing and stability of fluid transportation.

[0016] The clamp assembly 2 includes a welding clamp 21, which is located between the valve 1 and the VCR connector 31. The welding clamp 21 has a circular hole 22 at its bottom corresponding to the tube 11 and a hexagonal hole 23 at its top corresponding to the VCR connector 31. As the core positioning component in the clamp assembly 2, the welding clamp 21 has a circular hole 22 at its bottom for positioning and supporting the tube 11, ensuring that the tube 11 maintains the correct position and orientation during welding. The hexagonal hole 23 at its top is used to position and support the VCR connector 31, ensuring that the VCR connector 31 fits tightly against the end face of the tube 11 and restricting the rotation of the VCR connector 31, which facilitates the tightening of the nut 32. The welding clamp 21 optimizes welding conditions and reduces the risk of welding deformation by shortening the distance between the valve 1 and the VCR connector 31.

[0017] In use, the operator first inserts the tube 11 into the outlet of valve 1 and through the circular hole 22 at the bottom of the welding fixture 21, ensuring that the end face of the tube 11 is flush with the end face of the welding fixture 21. Then, the nut 32 of the VCR connector 31 and the welding connector 33 are passed through the hexagonal hole 23 at the top of the welding fixture 21, so that the hexagonal outer contour of the VCR connector 31 is fully engaged with the hexagonal hole 23 at the top of the welding fixture 21, while the end face of the welding connector 33 is tightly fitted with the end face of the tube 11. Finally, the threads of the VCR connector 31 and valve 1 are completed by rotating the nut 32. Connect the components and then start the automatic welding machine. The welding head performs circumferential welding along the mating surface of the TUBE pipe 11 and the welding joint 33. Because the welding fixture 21 shortens the distance between the valve 1 and the VCR joint 31, the size of the weld pool is reduced, the heat-affected zone is limited, and the risk of welding deformation is reduced. After welding, the weld cools and solidifies. The operator can verify the joint strength and sealing performance through airtightness testing. Finally, the operator can loosen the bolts on the welding fixture 21, open the welding fixture 21, and remove the welded component from the fixture. The operator can then check whether the appearance and size of the weld meet the standards.

[0018] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. Automatic welding machine special-shaped fixture, which includes: The valve (1) is characterized in that: a clamp assembly (2) is provided on the valve (1), and a VCR connector (31) is provided on the clamp assembly (2); The valve (1) is provided with a tube (11); The clamp assembly (2) includes a welding clamp (21) located between the valve (1) and the VCR connector (31). The bottom of the welding clamp (21) has a circular hole (22) corresponding to the TUBE pipe (11), and the top of the welding clamp (21) has a hexagonal hole (23) corresponding to the VCR connector (31).

2. The automatic welding machine irregular-shaped fixture according to claim 1, characterized in that: The VCR connector (31) has a nut (32) at one end, and a welding joint (33) is provided inside the nut (32).

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