Automatic welding equipment for multi-model pipe fittings

By designing the pipe welding structure and fixing structure of the automatic welding equipment, the problem of manual grinding during the pipe welding process was solved, automatic grinding was realized, and the welding speed and quality were improved.

CN224128907UActive Publication Date: 2026-04-17TIANJIN PETRO PIPE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN PETRO PIPE CO LTD
Filing Date
2025-04-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing welding equipment requires manual grinding when the pipe fitting connection is oxidized, and cannot automatically grind the weld seam, resulting in a reduction in welding speed.

Method used

Design an automatic welding equipment for multiple pipe fittings, including a pipe fitting welding structure and a fixing structure. A planar spiral spring drives the grinding wheel to rotate, and a motor drives the grinding wheel to rotate, automatically grinding the position before and after welding.

Benefits of technology

It enables automated grinding during the pipe welding process, improving welding speed and efficiency, reducing manual operation, and enhancing welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides automatic welding equipment for multi-model pipe fittings, which comprises a pipe fitting welding structure, the pipe fitting welding structure comprises a mounting frame, rotating frames are rotatably connected to two sides of the mounting frame, a flat spiral spring is arranged between the rotating frames and the mounting frame, one end of each rotating frame is provided with a mounting bin, and the other end of each rotating frame is provided with a clamping groove. And a polishing wheel is rotationally connected into the mounting bin. The polishing wheels are arranged on the two sides of the mounting frame, the flat spiral spring drives the rotating frame to rotate inwards, the rotating frame drives the polishing wheel on one side to enter the position, not welded, between the two pipe fittings, the polishing wheel on the other side enters the position between the two welded pipe fittings, then the motor drives the polishing wheels to rotate, and the polishing wheels are driven by the motor to rotate. And the grinding wheel can grind a welding seam between the two pipe fittings and can also grind a welding surface before welding.
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Description

Technical Field

[0001] This utility model belongs to the field of welding technology, specifically relating to an automatic welding equipment for multiple types of pipe fittings. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.

[0003] Modern welding utilizes a variety of energy sources, including gas flames, electric arcs, lasers, electron beams, friction, and ultrasound. Besides its use in factories, welding can be performed in various environments, such as outdoors, underwater, and in space. Regardless of the location, welding can pose dangers to operators, so appropriate protective measures must be taken. Potential injuries from welding include burns, electric shock, vision impairment, inhalation of toxic fumes, and excessive ultraviolet radiation exposure.

[0004] When welding pipe fittings, if oxidation occurs at the connection point between the two fittings, manual grinding of the connection point is required. After welding is completed, the areas with poor welds also need to be ground. Since the welding equipment does not have a grinding function, manual operation is still required afterward, which reduces the welding speed of the pipe fittings. Utility Model Content

[0005] Purpose of utility model

[0006] To address the aforementioned technical problems, this utility model provides an automatic welding equipment for multiple pipe fitting models, thereby solving the technical problems mentioned in the background art.

[0007] Technical solution

[0008] To achieve the above objectives, the technical solution provided by this utility model is an automatic welding equipment for multiple types of pipe fittings, including a pipe fitting welding structure, wherein a pipe fitting fixing structure is rotatably connected to both sides inside the pipe fitting welding structure.

[0009] A pipe fitting welding structure includes a mounting frame, with rotating frames rotatably connected to both sides of the mounting frame. A planar spiral spring is provided between the rotating frames and the mounting frame. A mounting chamber is provided at one end of the rotating frame, and a grinding wheel is rotatably connected inside the mounting chamber.

[0010] Preferably, an electric telescopic rod is provided in the middle of the top of the mounting frame, a welding device is provided at the top of the electric telescopic rod, auxiliary rings are provided on both sides of the top of the mounting frame, a drive shaft is rotatably connected to the top of the two auxiliary rings, and rotating gears are provided at both ends of the drive shaft.

[0011] Preferably, the inner side of the auxiliary ring is provided with a guide strip, the two sides of the guide strip are arc-shaped, the outer wall of the guide strip is provided with a slot, and the two sides of the outer wall of the auxiliary ring are provided with positioning grooves.

[0012] Preferably, the pipe fixing structure includes a rotating disk, which is rotatably connected to both sides of the outer wall of the auxiliary ring. A transmission ring is provided on the inner side of the rotating disk, and the transmission ring is slidably connected to the positioning groove. A side frame is provided between the two rotating disks, and a sliding hole is provided in the middle of the side frame.

[0013] Preferably, a sliding shaft is slidably connected to the inner wall of the sliding hole, a positioning strip is provided at one end of the sliding shaft, a positioning ring is provided at the other end of the sliding shaft, and a return spring is provided between the positioning ring and the side frame.

[0014] Preferably, one end of the sliding shaft is provided with a connecting ring, and a drive wheel is rotatably connected to the outer side of the connecting ring.

[0015] Beneficial effects

[0016] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0017] This utility model uses grinding wheels set on both sides of the mounting frame. A flat spiral spring drives the rotating frame to rotate inward, so that the rotating frame drives the grinding wheel on one side to enter the unwelded position between two pipe fittings, and the grinding wheel on the other side to enter the two welded pipe fittings. Then the motor drives the grinding wheel to rotate, so that the grinding wheel grinds the weld seam between the two pipe fittings and can also grind the welded surface before welding.

[0018] When welding different types of pipe fittings is required, two pipe fittings are inserted through both ends of the pipe fitting welding structure. Then, the pipe fitting fixing structure is rotated, causing the sliding shaft inside the pipe fitting fixing structure to move outward. The sliding shaft drives the drive wheel to fit against the outer wall of the pipe fitting and fix the pipe fitting. Activating the drive wheel can also move the pipe fitting, allowing the pipe fitting to move on top of the welding device. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional view of the pipe fitting welding structure of this utility model;

[0021] Figure 3 This is a three-dimensional sectional view of the pipe fitting fixing structure of this utility model;

[0022] Figure 4 This is a three-dimensional cross-sectional view of the pipe fitting fixing structure of this utility model.

[0023] Figure Labels

[0024] 1. Pipe fitting welding structure; 101. Mounting bracket; 102. Electric telescopic rod; 103. Welding device; 104. Rotating frame; 105. Mounting chamber; 106. Grinding wheel; 107. Auxiliary ring; 108. Drive shaft; 109. Rotary gear; 110. Guide bar; 111. Slot; 112. Positioning slot; 2. Pipe fitting fixing structure; 201. Rotating disk; 202. Drive ring; 203. Side frame; 204. Sliding hole; 205. Sliding shaft; 206. Positioning bar; 207. Positioning ring; 208. Connecting ring; 209. Drive wheel; 210. Return spring. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0029] Reference Figure 1-4 The automatic welding equipment for multiple types of pipe fittings shown includes a pipe fitting welding structure 1, and a pipe fitting fixing structure 2 is rotatably connected to both sides inside the pipe fitting welding structure 1.

[0030] The pipe fitting welding structure 1 includes a mounting frame 101, with rotating frames 104 rotatably connected to both sides of the mounting frame 101. A planar spiral spring is provided between the rotating frames 104 and the mounting frame 101. A mounting chamber 105 is provided at one end of the rotating frame 104, and a grinding wheel 106 is rotatably connected inside the mounting chamber 105. An electric telescopic rod 102 is provided at the middle of the top of the mounting frame 101, and a welding device 103 is provided at the top of the electric telescopic rod 102. Auxiliary rings 107 are provided on both sides of the top of the mounting frame 101, and a drive shaft 108 is rotatably connected to the top of the two auxiliary rings 107. Rotary gears 109 are provided at both ends of the drive shaft 108, and guide strips 110 are provided on the inner side of the auxiliary rings 107. The guide strip 110 has arc-shaped sides, and the outer wall of the guide strip 110 has a slot 111. The outer wall of the auxiliary ring 107 has positioning slots 112 on both sides. When two pipe fittings need to be welded, the pipe fittings are inserted into the auxiliary rings 107 on both sides of the mounting frame 101 and then fixed by the pipe fitting fixing structure 2. After the pipe fittings are fixed, the planar spiral spring drives the rotating frame 104 to rotate. The rotating frame 104 drives the grinding wheel 106 inside the mounting chamber 105 to fit with the connection position between the pipe fittings. The motor is started, and the motor drives the grinding wheel 106 to rotate. The grinding wheel 106 on one side can grind the connection surface between the two pipe fittings, and the other grinding wheel 106 is used to grind the welding surface after the two pipe fittings are welded.

[0031] Furthermore, in the above technical solution, the pipe fixing structure 2 includes a rotating disk 201, which is rotatably connected to both sides of the outer wall of the auxiliary ring 107. A transmission ring 202 is provided on the inner side of the rotating disk 201, and the transmission ring 202 is slidably connected to the positioning groove 112. A side frame 203 is provided between the two rotating disks 201. A sliding hole 204 is provided in the middle of the side frame 203. A sliding shaft 205 is slidably connected to the inner wall of the sliding hole 204. A positioning strip 206 is provided at one end of the sliding shaft 205, and a positioning ring 207 is provided at the other end of the sliding shaft 205. A reset mechanism is provided between the positioning ring 207 and the side frame 203. Spring 210, one end of the sliding shaft 205 is provided with a connecting ring 208, the outer side of the connecting ring 208 is rotatably connected to a drive wheel 209, start the motor, the motor drives the transmission shaft 108 to rotate, the transmission shaft 108 drives the rotating gear 109 to rotate, the rotating gear 109 drives the rotating disk 201 to rotate through the gear teeth on one side of the rotating disk 201, the rotating disk 201 drives the internal sliding shaft 205 to slide on the outer wall of the guide bar 110, so that the sliding shaft 205 moves outward, then the positioning bar 206 engages with the slot 111 on the outer wall of the guide bar 110, so that the drive wheel 209 is in contact with the outer wall of the pipe fitting, then start the drive wheel 209, the drive wheel 209 can drive the pipe fitting to rotate.

[0032] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-size tube automatic welding apparatus characterized by comprising: include Pipe welding structure (1), wherein pipe fixing structure (2) is rotatably connected to both sides inside the pipe welding structure (1); The pipe fitting welding structure (1) includes a mounting frame (101), a rotating frame (104) is rotatably connected to both sides of the mounting frame (101), a flat spiral spring is provided between the rotating frame (104) and the mounting frame (101), and a mounting chamber (105) is provided at one end of the rotating frame (104), and a grinding wheel (106) is rotatably connected inside the mounting chamber (105).

2. The multi-size tube automatic welding apparatus according to claim 1, characterized by: An electric telescopic rod (102) is provided in the middle of the top of the mounting frame (101), a welding device (103) is provided on the top of the electric telescopic rod (102), auxiliary rings (107) are provided on both sides of the top of the mounting frame (101), a drive shaft (108) is rotatably connected to the top of the two auxiliary rings (107), and a rotating gear (109) is provided at both ends of the drive shaft (108).

3. A multi-size tube automatic welding apparatus according to claim 2, characterized in that: The inner side of the auxiliary ring (107) is provided with a guide strip (110), the two sides of the guide strip (110) are arc-shaped, the outer wall of the guide strip (110) is provided with a slot (111), and the two sides of the outer wall of the auxiliary ring (107) are provided with positioning slots (112).

4. The multi-size tube automatic welding apparatus of claim 1, wherein: The pipe fixing structure (2) includes a rotating disk (201), which is rotatably connected to both sides of the outer wall of the auxiliary ring (107). A transmission ring (202) is provided on the inner side of the rotating disk (201), and the transmission ring (202) is slidably connected to the positioning groove (112). A side frame (203) is provided between the two rotating disks (201), and a sliding hole (204) is provided in the middle of the side frame (203).

5. A multi-size tube automatic welding apparatus according to claim 4, characterized in that: The inner wall of the sliding hole (204) is slidably connected to a sliding shaft (205). One end of the sliding shaft (205) is provided with a positioning strip (206), and the other end of the sliding shaft (205) is provided with a positioning ring (207). A return spring (210) is provided between the positioning ring (207) and the side frame (203).

6. A multi-size tube automatic welding apparatus according to claim 5, wherein: One end of the sliding shaft (205) is provided with a connecting ring (208), and a drive wheel (209) is rotatably connected to the outer side of the connecting ring (208).