Valve connecting pipe welding clamp

Abstract

The utility model relates to the technical field of valve welding, and discloses a valve connecting pipe welding clamp which comprises an upper plate and a lower plate, side edge fixing plates are arranged on the two sides of the upper plate and the two sides of the lower plate to form a closed area, and connecting hole positions are arranged behind the upper plate and the lower plate and used for installing the clamp on the fixing plates. The clamp is used for arranging the outlet end of a valve between the upper plate and the lower plate and welding a connecting pipe connected to the upper portion of the outlet end, a round hole is formed in the lower plate and used for allowing the outlet end of the valve to enter, and a hexagonal hole is formed in the upper plate and used for allowing a hexagonal connecting pipe to enter. The height of the clamp is increased, so that enough space is provided during argon arc welding operation, and the welding quality and efficiency are improved.

Description

A valve connection pipe welding fixture Technical Field

[0001] This utility model relates to the field of valve welding technology, and in particular to a valve connecting pipe welding fixture. Background Technology

[0002] A VCR valve (Vacuum Coupling Radial Valve) is a high-performance valve that uses metal-face sealing technology. It is typically used with VCR fittings and is designed for high-purity, high-vacuum, or high-pressure environments.

[0003] When welding the VCR connector to the valve outlet, a relatively sealed space must be ensured due to the use of argon arc welding. Therefore, a clamp is installed at the connection between the VCR connector and the valve outlet, forming a space through the upper, lower, left, right, and rear plates. The circular tube of the connector passes through the circular holes on the upper and lower plates. During welding, argon gas is filled into the welding torch, the valve, the VCR connector tube, and the space of the clamp. The welding torch extends from the space of the clamp to the connector for welding.

[0004] Due to the length requirements at the joint, the space inside the fixture is limited to about 10mm in height, and cannot be expanded further. When using a welding torch, the limited space makes operation very inconvenient, directly impacting welding quality and efficiency. Summary of the Invention

[0005] The purpose of this invention is to solve the above problems by providing a valve connecting pipe welding fixture that increases the height of the fixture, providing sufficient space for argon arc welding operations and improving welding quality and efficiency.

[0006] The technical solution adopted by this utility model is:

[0007] A valve connecting pipe welding fixture is characterized by comprising an upper plate and a lower plate, with side fixing plates provided on both sides of the upper and lower plates to form a closed area. Connection holes are provided at the rear of the upper and lower plates for mounting the fixture onto the fixing plates. The fixture is used to position the valve outlet end between the upper and lower plates for welding the connecting pipe connected above the outlet end. A circular hole is provided on the lower plate for the valve outlet end to enter, and a hexagonal hole is provided on the upper plate for the hexagonal connecting pipe to enter.

[0008] Furthermore, both the upper and lower plates are divided into front and rear sections, with the two plates dividing the round hole and the hexagonal hole into two halves. A pivot is set on the side fixing plate, and one end of the two front plates is mounted on the pivot for horizontal rotation.

[0009] Furthermore, the pivots of the upper and lower front panels are located on the left and right sides respectively, and a connecting block is set below the free end, which is locked to the side fixing plate by locking screws.

[0010] Furthermore, the upper plate and the lower plate form a trapezoidal structure that is narrower at the front and wider at the back.

[0011] Furthermore, a rear plate is provided at the rear end of the upper plate and the lower plate.

[0012] Furthermore, the distance between the upper plate and the lower plate is greater than 12.7 mm.

[0013] The beneficial effects of this utility model are:

[0014] (1) The upper plate of the fixture matches the shape of the hexagonal head above the VCR connector to keep the fixture space closed;

[0015] (2) The front ends of the upper and lower plates are designed with a rotating opening structure to facilitate the fixing of valves and VCR connectors;

[0016] (3) It nearly doubled the height inside the fixture, expanded the welding space, and made the operation more convenient. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the clamp structure of this utility model;

[0018] Figure 2 is a schematic diagram of the clamp of this utility model from another perspective;

[0019] Figure 3 is a schematic diagram showing the installation positions of the valve, connecting pipe and clamp.

[0020] The labels in the attached diagram are as follows:

[0021] 1. Clamp; 2. Upper plate;

[0022] 3. Bottom plate; 4. Side fixing plate;

[0023] 5. Connecting holes; 6. Round holes;

[0024] 7. Hexagonal hole; 8. Spindle;

[0025] 9. Upper front panel; 10. Lower front panel;

[0026] 11. Connecting block; 12. Screw hole;

[0027] 13. Valves; 14. Connecting pipes. Detailed Implementation

[0028] The following detailed description of the specific implementation of a valve connecting pipe welding fixture according to the present invention, with reference to the accompanying drawings, is provided in detail.

[0029] Referring to Figures 1 and 2, the welding fixture 1 includes an upper plate 2 and a lower plate 3. Side fixing plates 4 are provided on both sides of the upper plate 2 and the lower plate 3 to form a closed area. Connecting holes 5 are provided at the rear of the upper plate 2 and the lower plate 3 for mounting the fixture 1 onto the fixing plates. Alternatively, a rear plate can be provided at the rear end of the upper plate 2 and the lower plate 3, so that the upper and lower plates 3, the side fixing plates 4, and the rear plate form a closed area. In this case, when the fixture 1 is mounted on a fixed object, it can be closed without relying on the fixing plates. A circular hole 6 is provided on the lower plate 3, and a hexagonal hole 7 is provided on the upper plate 2.

[0030] Both the upper plate 2 and the lower plate 3 are divided into front and rear sections. These two plates divide the round hole 6 and the hexagonal hole 7 into two halves. A pivot 8 is mounted on the side fixing plate 4, and one end of each of the two front plates 9 and 10 is mounted on the pivot 8 for horizontal rotation. The pivots 8 of the upper and lower front plates 9 and 10 are located on the left and right sides respectively, with connecting blocks 11 located below the free ends, which are locked to the side fixing plate 4 by locking screws. Only the screw hole 12 is shown in the attached diagram; the locking screws lock the two front plates 9 and 10 through the screw hole 12. The two front plates 9 and 10 form a trapezoidal structure that is narrower at the front and wider at the back, creating a larger space underneath.

[0031] Referring to Figure 3, during operation, the fixture 1 is first installed and fixed on the fixed plate, forming a welding space inside the fixture 1. The distance between the upper and lower plates 3 of the fixture 1 is greater than 12.7mm, which is suitable for the insertion of the welding gun.

[0032] Open the two front plates 9 and 10 to the sides and fix the valve 13 under the clamp 1. The valve 13 can be fixed by fasteners or other means. The outlet end of the valve 13 extends from the round hole 6 on the lower plate 3. Then insert the connecting pipe 14 from above, aligning its lower end with the outlet end of the valve 13. The hexagon at the upper end of the connecting pipe 14 matches the hexagonal hole 7 on the upper plate 2. Close and lock the two front plates 9 and 10. Weld the connecting pipe 14 to the outlet of the valve 13 using a welding machine. After welding, open the two front plates 9 and 10, remove the valve 13, and complete one welding operation.

[0033] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A valve connecting pipe welding fixture, characterized in that: The device includes an upper plate and a lower plate, with side fixing plates on both sides of the upper and lower plates to form a closed area. Connection holes are provided at the rear of the upper and lower plates for mounting a clamp on the fixing plates. The clamp is used to position the valve outlet end between the upper and lower plates and to weld the connecting pipe above the outlet end. A round hole is provided on the lower plate for the valve outlet end to enter, and a hexagonal hole is provided on the upper plate for the hexagonal connecting pipe to enter.

2. The valve connecting pipe welding fixture according to claim 1, characterized in that: The upper plate and the lower plate are both divided into front and rear sections. The two plates divide the round hole and the hexagonal hole into two halves. A pivot is set on the side fixing plate, and one end of the two front plates is set on the pivot to rotate horizontally.

3. The valve connecting pipe welding fixture according to claim 2, characterized in that: The pivots of the upper and lower front panels are located on the left and right sides respectively, and a connecting block is set below the free end, which is locked to the side fixing plate by locking screws.

4. A valve connecting pipe welding fixture according to any one of claims 1 to 3, characterized in that: The upper and lower plates form a trapezoidal structure that is narrower at the front and wider at the back.

5. A valve connecting pipe welding fixture according to any one of claims 1 to 3, characterized in that: A rear plate is provided at the rear end of the upper plate and the lower plate.

6. A valve connecting pipe welding fixture according to any one of claims 1 to 3, characterized in that: The distance between the upper plate and the lower plate is greater than 12.7 mm.

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