Valve welding device with pretreatment function

By combining guide rails, sliders, rotating frames, and rotating wheels, the problem that existing valve welding devices cannot weld 180 degrees has been solved, enabling stable welding of valve components at any angle, improving welding efficiency and safety, and forming a closed connection.

CN224143860UActive Publication Date: 2026-04-21NANJING CHENQUAN MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING CHENQUAN MASCH MFG CO LTD
Filing Date
2025-07-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing valve welding equipment cannot achieve welding at around 180 degrees, resulting in poor weld strength and requiring equipment replacement, which reduces work efficiency.

Method used

A valve welding device with pre-processing function was designed. By combining guide rails, sliders, rotating frames and rollers, valve components at any angle can be welded. Stable clamping is achieved by a combination of elastic telescopic rods and push plates. The motor drives the rollers and rotating frames to perform omnidirectional welding.

Benefits of technology

It enables stable welding of valve components at any angle, expands the applicability of the equipment, improves welding efficiency and safety, and forms a closed connection structure to prevent the welded components from shaking or loosening during transportation or construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding devices, and discloses a valve welding device with a pretreatment function, which comprises a workbench, and a welding assembly is arranged on the top end face of the workbench. According to the valve welding device with the pretreatment function, the guide rail, the sliding block, the rotating frame and the rotating wheel are arranged, the sliding block can freely slide on the annular guide rail, valve parts with any included angles can be welded through the device, various engineering design requirements are met, and the application range of the device is expanded; the valve parts are pressed into a triangle formed by the edge of the abutting plate and the push plate, a welding machine rotates a circle around the joint of the two valve parts, all-directional covering and all-round welding are conducted on the whole welding joint to form a closed connecting structure, the welding part and the valve parts form a whole, the external force can be better resisted, and the welding quality is improved. And the welded valve component is prevented from shaking or loosening in the transportation or construction process.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a valve welding device with pretreatment function. Background Technology

[0002] Valves often require welding during the production process to connect two parts together. Current valve component welding equipment can generally only weld two valve components into a straight line. Furthermore, the valve components and the welding gun cannot rotate during the welding process, resulting in only one point on the outer circumference of the valve component being welded, leading to poor weld strength.

[0003] In actual use, the rotation angle of the two sets of rotating parts in the existing welding device is limited. Since the rotating parts are used to fix valve components, this welding device cannot weld valve components with an angle of about 180 degrees. The welding equipment needs to be replaced during construction, which reduces work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a valve welding device with pretreatment function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve welding device with pretreatment function, comprising a workbench, wherein a welding assembly is provided on the top end face of the workbench, and the welding assembly includes:

[0006] The guide rail is fixedly connected to the top end face of the worktable, and the guide rail is slidably connected to the slider. The top end face of the slider is fixedly connected to a mounting bracket.

[0007] The mounting frame has an abutment plate, and an elastic telescopic rod is fixedly connected to the inner wall of the mounting frame. The abutment plate is fixedly connected to the end face of the elastic telescopic rod. An elastic element is fixedly connected to the inner bottom surface of the mounting frame, and a push plate is fixedly connected to the top of the elastic element.

[0008] An arc-shaped track is fixedly connected to the top end face of the workbench. The arc-shaped track is slidably connected to the rotating frame. A hydraulic cylinder is fixedly connected to the inner wall of the rotating frame. A welding machine is fixedly connected to the output end of the hydraulic cylinder.

[0009] The motor is fixedly connected to the bottom end face of the workbench. The output end of the motor is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the motor is fixedly connected to a rotating wheel.

[0010] Preferably, a first transverse bar is fixedly connected to the side wall of the rotating frame, and a second transverse bar is fixedly connected to the side wall of the rotating wheel.

[0011] Preferably, the top end face of the guide rail is provided with a scale bar, and the number of scale bars is set in several groups. The several groups of scale bars are equally spaced on the top end face of the guide rail, and the scale can be used to intuitively adjust the welding angle of the valve component.

[0012] Preferably, there are two sets of sliders and mounting brackets, which slide on the guide rail. By placing the valve component on the two sets of mounting brackets, the welding angle of the valve component can be adjusted.

[0013] Preferably, the rotating wheel is connected to the rotating frame in a transmission manner, and the axis of the rotating frame intersects with and is perpendicular to the axis of the guide rail. The valve components on the two sets of mounting frames eventually meet at the axis of the rotating frame.

[0014] Preferably, the abutment plate is triangular in shape, and the edge of the abutment plate and the push plate form a triangle, so that the valve component is pressed into the triangle formed by the edge of the abutment plate and the push plate, thereby achieving stable clamping of the valve component.

[0015] Compared with the prior art, this utility model provides a valve welding device with pretreatment function, which has the following beneficial effects:

[0016] 1. This valve welding device with pre-treatment function, through the setting of guide rails, sliders, rotating frames, and rotating wheels, allows the sliders to slide arbitrarily on the annular guide rails, enabling the device to weld valve components at any angle, adapting to various engineering design requirements and expanding the applicability of the equipment. The valve component is pressed into the triangle formed by the edge of the abutment plate and the push plate. Through the elasticity of the elastic telescopic rod and elastic elements, the abutment plate and push plate are tightly pressed against the valve component, achieving stable clamping of the valve component. No complex manual adjustment is required, reducing operational difficulty and improving work efficiency. The welding machine rotates around the joint of the two valve components, providing full coverage of the entire weld joint, forming a closed connection structure. This makes the welded part and the valve component an integral whole, better resisting external forces and preventing the welded valve component from shaking or loosening during transportation or construction.

[0017] 2. This valve welding device with pretreatment function improves the friction between the rotating frame and the rotating wheel by setting transverse bars one and two, avoiding slippage during rotation. This ensures that the welding machine rotates more accurately around the joint of the valve component, making the rotation process more stable and efficient, and improving operational safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the guide rail structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the slider structure of this utility model;

[0021] Figure 4 This is a bottom view of the operating table structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating frame structure of this utility model.

[0023] In the diagram: 1. Workbench; 2. Welding assembly; 201. Guide rail; 202. Slider; 203. Mounting frame; 204. Elastic telescopic rod; 205. Abutment plate; 206. Elastic component; 207. Push plate; 208. Arc track; 209. Rotating frame; 210. Hydraulic cylinder; 211. Welding machine; 212. Motor; 213. Rotary wheel; 3. Horizontal strip one; 4. Horizontal strip two. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a valve welding device with pre-processing function, including a workbench 1, a welding assembly 2 provided on the top end face of the workbench 1, the welding assembly 2 including a guide rail 201, a slider 202, a mounting frame 203, an elastic telescopic rod 204, an abutment plate 205, an elastic element 206, a push plate 207, an arc track 208, a rotating frame 209, a hydraulic cylinder 210, a welding machine 211, a motor 212, and a rotary wheel 213.

[0025] In one embodiment of this utility model, the guide rail 201 is fixedly connected to the top end face of the workbench 1. The top end face of the guide rail 201 is provided with a scale bar. The number of scale bars is set in several groups, and the several groups of scale bars are equally spaced on the top end face of the guide rail 201. The scale bar can intuitively adjust the welding angle of the valve component. The guide rail 201 is slidably connected to the slider 202. The top end face of the slider 202 is fixedly connected to the mounting bracket 203. The number of sliders 202 and mounting brackets 203 is set in two groups. The two groups of sliders 202 and mounting brackets 203 slide on the guide rail 201. By placing the valve component on the two groups of mounting brackets 203, the welding angle of the valve component can be adjusted.

[0026] An elastic telescopic rod 204 is fixedly connected to the inner wall of the mounting bracket 203. An abutment plate 205 is fixedly connected to the end face of the elastic telescopic rod 204. An elastic element 206 is fixedly connected to the inner bottom surface of the mounting bracket 203. A push plate 207 is fixedly connected to the top of the elastic element 206. The abutment plate 205 is triangular in shape. The side of the abutment plate 205 and the push plate 207 form a triangle. The valve component is pressed into the triangle formed by the side of the abutment plate 205 and the push plate 207 to achieve stable clamping of the valve component.

[0027] The arc-shaped track 208 is fixedly connected to the top end face of the workbench 1. The arc-shaped track 208 is slidably connected to the rotating frame 209. The inner wall of the rotating frame 209 is fixedly connected to the hydraulic cylinder 210. The output end of the hydraulic cylinder 210 is fixedly connected to the welding machine 211. The rotating wheel 213 is connected to the rotating frame 209 in a transmission manner. The axis of the rotating frame 209 intersects with the axis of the guide rail 201 and is perpendicular to each other. The valve components on the two sets of mounting frames 203 finally meet at the axis of the rotating frame 209.

[0028] The motor 212 is fixedly connected to the bottom end face of the workbench 1. The output end of the motor 212 is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the motor 212 is fixedly connected to a rotating wheel 213.

[0029] Adjusting the positions of the two sets of mounting brackets 203 and the slider 202 on the guide rail 201 adjusts the welding angle of the valve component. Since the slider 202 can slide arbitrarily on the annular guide rail 201, this device can weld valve components at any angle, adapting to various engineering design requirements and expanding the applicability of the equipment. Then, align the valve component with the abutment plate 205, press the valve component down, and press the valve component into the triangle formed by the edge of the abutment plate 205 and the push plate 207. Through the elasticity of the elastic telescopic rod 204 and the elastic element 206, the abutment plate 205 and the push plate 207 are tightly abutted against the valve component, achieving stable clamping of the valve component. No complicated manual adjustment is required, reducing the difficulty of operation and improving work efficiency.

[0030] Then the motor 212 starts, driving the rotating wheel 213 to rotate, which in turn drives the rotating frame 209 to rotate, so that the welding machine 211 can rotate around the joint of the two valve components. This allows for full coverage of the entire welded joint, forming a closed connection structure through full-circumference welding. This makes the welded part and the valve component a whole, which can better resist external forces and prevent the welded valve component from shaking or loosening during transportation or construction.

[0031] In addition, the side wall of the rotating frame 209 is fixedly connected with a transverse strip 3, and the side wall of the rotating wheel 213 is fixedly connected with a transverse strip 4. The transverse strip 3 and the transverse strip 4 can increase the friction between the rotating frame 209 and the rotating wheel 213, and prevent slippage during rotation. This ensures that the welding machine 211 rotates more accurately around the joint of the valve component, making the rotation process more stable and efficient, and improving operational safety.

[0032] In this utility model, during use, the positions of the two sets of sliders 202 on the guide rail 201 are adjusted, and the valve components are pressed into the triangular space formed by the edge of the abutment plate 205 and the push plate 207. The two sets of valve components meet at the axis of the rotating frame 209. The motor 212 drives the rotating wheel 213 to rotate, so that the rotating frame 209 and the welding machine 211 rotate around the joint of the two valve components to achieve full circumference welding.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. Valve welding device with pre-treatment function, comprising a worktable (1), characterized in that: The top end face of the workbench (1) is provided with a welding assembly (2), the welding assembly (2) including: The guide rail (201) is fixedly connected to the top end face of the workbench (1). The guide rail (201) is slidably connected to the slider (202). The top end face of the slider (202) is fixedly connected to the mounting bracket (203). The mounting bracket (203) has an abutment plate (205) and an elastic telescopic rod (204) fixedly connected to the inner wall of the mounting bracket (203). The abutment plate (205) is fixedly connected to the end face of the elastic telescopic rod (204). An elastic element (206) is fixedly connected to the inner bottom surface of the mounting bracket (203). A push plate (207) is fixedly connected to the top of the elastic element (206). An arc-shaped track (208) is fixedly connected to the top end face of the workbench (1). The arc-shaped track (208) is slidably connected to the rotating frame (209). A hydraulic cylinder (210) is fixedly connected to the inner wall of the rotating frame (209). A welding machine (211) is fixedly connected to the output end of the hydraulic cylinder (210). The motor (212) is fixedly connected to the bottom end face of the workbench (1). The output end of the motor (212) is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the motor (212) is fixedly connected to a rotating wheel (213).

2. The valve welding device with pre-treatment function according to claim 1, characterized in that: The side wall of the rotating frame (209) is fixedly connected with a transverse bar one (3), and the side wall of the rotating wheel (213) is fixedly connected with a transverse bar two (4).

3. The valve welding device with pre-treatment function according to claim 1, characterized in that: The top end face of the guide rail (201) is provided with scale bars, and the number of scale bars is set in several groups, with the several groups of scale bars being equally spaced on the top end face of the guide rail (201).

4. The valve welding device with pre-treatment function according to claim 1, characterized in that: The number of sliders (202) and mounting brackets (203) is set in two sets, and the two sets of sliders (202) and mounting brackets (203) slide on the guide rail (201).

5. The valve welding device with pre-treatment function according to claim 1, characterized in that: The rotating wheel (213) is connected to the rotating frame (209) for transmission. The axis of the rotating frame (209) intersects with and is perpendicular to the axis of the guide rail (201).

6. The valve welding device with pre-treatment function according to claim 1, characterized in that: The abutment plate (205) is triangular in shape, and the side of the abutment plate (205) and the push plate (207) form a triangle.