High-precision welding device for municipal pressure steel pipe
By designing a guiding mechanism and a limiting mechanism, the problem of positional changes during the welding process of municipal pressure steel pipes was solved, achieving high-precision welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
Municipal pressure steel pipes are prone to movement during welding, which can lead to changes in the welding position and affect the welding quality.
A high-precision welding device for municipal pressure steel pipes is adopted, including a guiding mechanism and a limiting mechanism. The steel pipe is fixed by a clamping ring and a buffer ring driven by a hydraulic cylinder, and the steel pipe is moved by a guide wheel driven by a motor. The stability of the steel pipe is ensured by the limiting plate and the guide wheel.
It effectively prevents the steel pipe from moving during the welding process, ensures the accuracy of the welding position, and improves the welding quality and precision.
Smart Images

Figure CN224073726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal pressure steel pipe technology, and in particular to a high-precision welding device for municipal pressure steel pipe. Background Technology
[0002] In the field of municipal engineering, pressure steel pipes are widely used in water supply and drainage, gas transmission and other systems. The welding quality of these pipes directly affects the pressure-bearing capacity, sealing performance and service life of the pipeline system. With the acceleration of urbanization, municipal pipe networks are becoming more complex and deeply buried, placing higher demands on the welding precision of pressure steel pipes. High-precision welding must meet the high coaxiality requirements of steel pipe butt assembly, while also achieving dynamic and precise control of welding parameters.
[0003] Existing high-precision welding equipment for municipal pressure steel pipes is prone to pipe movement during welding, which can cause changes in the welding position and lead to welding failure.
[0004] To address this, a high-precision welding device for municipal pressure steel pipes is proposed. Summary of the Invention
[0005] In view of this, the present invention aims to provide a high-precision welding device for municipal pressure steel pipes to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.
[0006] The technical solution of this utility model embodiment is implemented as follows: A high-precision welding device for municipal pressure steel pipes includes a main body and a guide mechanism disposed on both sides of the top of the main body. The main body includes: a working plate, support rods disposed on both sides of the top of the working plate, a limiting plate disposed on the top of the support rods, a smooth panel disposed on the top of the limiting plate, a mounting sleeve disposed on the top of the limiting plate, a first hydraulic cylinder disposed at the bottom of the mounting sleeve, a clamping ring disposed at the bottom of the first hydraulic cylinder, a buffer ring disposed at the bottom of the clamping ring, and limiting pieces disposed on both sides of the clamping ring.
[0007] In some embodiments, the guiding mechanism includes fixed rods disposed on both sides of the top of the working plate, a fixed sleeve disposed on the top of the fixed rods, a guide wheel disposed inside the fixed sleeve, and a motor disposed on one side of the fixed sleeve.
[0008] In some embodiments, the top of the fixing sleeve is provided with a mounting plate, the inside of the mounting plate is provided with a rotating wheel, and the outer wall of the rotating wheel is provided with a silicone ring.
[0009] In some embodiments, a work box is provided on the top of the work plate, and a protective cover is provided on the top of the work box.
[0010] In some embodiments, the work box is provided with cleaning doors on both sides, and the protective cover is provided with a protective groove inside.
[0011] In some embodiments, a support frame is provided at the top of the protective cover, a linear slide rail is provided at the bottom of the support frame, a second hydraulic cylinder is provided at the bottom of the linear slide rail, and a welding machine is provided at the bottom of the second hydraulic cylinder.
[0012] In some embodiments, the bottom of the work plate is provided with a support leg, and the bottom of the support leg is provided with a support foot.
[0013] The present invention has the following advantages due to the adoption of the above technical solution:
[0014] A high-precision welding device for municipal pressure steel pipes is used such that, after the pressure steel pipe is placed on top of the county party committee office, the first hydraulic cylinder drives the clamping ring to move downwards, so that the buffer ring at the bottom of the clamping ring contacts the surface of the steel pipe for fixation. The limiting plates on both sides of the bottom of the clamping ring are engaged with the limiting plate on both sides for limiting and fixing the steel pipe, preventing the steel pipe from moving during welding and causing welding failure.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is an overall structural diagram of the present invention;
[0018] Figure 2 This is a cross-sectional structural diagram of the protective cover of this utility model;
[0019] Figure 3 This is a structural diagram of the limiting component of this utility model;
[0020] Figure 4 This is a structural diagram of the guide mechanism of this utility model.
[0021] Figure label:
[0022] 100. Main body; 101. Working plate; 102. Support rod; 103. Limiting plate; 104. Smooth panel; 105. Mounting sleeve; 106. First hydraulic cylinder; 107. Clamping ring; 108. Buffer ring; 109. Limiting piece; 110. Working box; 111. Protective groove; 112. Cleaning door; 113. Protective cover; 114. Support frame; 115. Linear slide rail; 116. Second hydraulic cylinder; 117. Welding machine; 118. Support leg; 119. Support foot; 200. Guide mechanism; 201. Fixing rod; 202. Fixing sleeve; 203. Guide wheel; 204. Motor; 205. Mounting plate; 206. Rotating wheel; 207. Silicone ring. Detailed Implementation
[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0026] like Figure 1-4As shown, a high-precision welding device for municipal pressure steel pipes includes a main body 100 and guide mechanisms 200 installed on both sides of the top of the main body 100. The main body 100 includes: a working plate 101, support rods 102 installed on both sides of the top of the working plate 101, a limiting plate 103 installed on the top of the support rods 102, a smooth panel 104 installed on the top of the limiting plate 103, a mounting sleeve 105 installed on the top of the limiting plate 103, and a first hydraulic... The first hydraulic cylinder 106 has a clamping ring 107 installed at the bottom of the first hydraulic cylinder 106, a buffer ring 108 bonded to the bottom of the clamping ring 107, and after the pressure steel pipe is placed on the top of the limiting plate 103, the first hydraulic cylinder 106 drives the clamping ring 107 to move downward, so that the buffer ring 108 at the bottom of the clamping ring 107 contacts the surface of the steel pipe for fixation. The first hydraulic cylinder 106 also has limiting pieces 109 installed on both sides of the clamping ring 107, which are engaged with the limiting plate 103 on both sides for limiting.
[0027] In this embodiment, the guide mechanism 200 includes fixed rods 201 installed on both sides of the top of the working plate 101, a fixed sleeve 202 installed on the top of the fixed rods 201, a guide wheel 203 rotatably connected inside the fixed sleeve 202, and a motor 204 installed on one side of the fixed sleeve 202. After the steel pipe enters the top of the guide wheel 203, the motor 204 drives the guide wheel 203 to rotate and move the steel pipe.
[0028] In this embodiment, a mounting plate 205 is installed on the top of the fixing sleeve 202. A rotating wheel 206 is rotatably connected inside the mounting plate 205. A silicone ring 207 is adhered to the outer wall of the rotating wheel 206. The silicone ring 207 on the outer wall of the rotating wheel 206 inside the fixing sleeve 202 rotates to limit the movement of the steel pipe.
[0029] In this embodiment, a work box 110 is installed on the top of the work plate 101, and a protective cover 113 is installed on the top of the work box 110 to protect the welding area. Cleaning doors 112 are rotatably connected to both sides of the work box 110. A protective groove 111 is opened inside the protective cover 113. The door 112 is opened to clean the debris inside the protective groove 111.
[0030] In this embodiment, a support frame 114 is installed on the top of the protective cover 113, a linear slide rail 115 is installed at the bottom of the support frame 114, a second hydraulic cylinder 116 is installed at the bottom of the linear slide rail 115, a welding machine 117 is installed at the bottom of the second hydraulic cylinder 116 for welding work, a support leg 118 is installed at the bottom of the work plate 101, and a support foot 119 is installed at the bottom of the support leg 118.
[0031] In this embodiment: When in use, after the pressure steel pipe is placed on top of the limiting plate 103, the first hydraulic cylinder 106 drives the clamping ring 107 to move downward, so that the buffer ring 108 at the bottom of the clamping ring 107 contacts the surface of the steel pipe for fixation. The limiting pieces 109 on both sides of the bottom of the clamping ring 107 are engaged with the two sides of the limiting plate 103 for limiting and fixing the steel pipe, preventing the steel pipe from moving during welding and causing welding failure.
[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A high-precision welding device for municipal pressure steel pipes, comprising a main body mechanism (100) and a guide mechanism (200) arranged on both sides of the top of the main body mechanism (100), characterized in that: The main body mechanism (100) comprises a workboard (101), support rods (102) arranged on both sides of the top of the workboard (101), a limiting plate (103) arranged on the top of the support rods (102), a smooth plate (104) arranged on the top of the limiting plate (103), a mounting sleeve (105) arranged on the top of the limiting plate (103), a first hydraulic cylinder (106) arranged on the bottom of the mounting sleeve (105), a clamping ring (107) arranged on the bottom of the first hydraulic cylinder (106), a buffer ring (108) arranged on the bottom of the clamping ring (107), and limiting sheets (109) arranged on both sides of the clamping ring (107).
2. The high-precision welding device for municipal pressure steel pipes according to claim 1, characterized in that: The guide mechanism (200) comprises fixed rods (201) arranged on both sides of the top of the workboard (101), fixed sleeves (202) arranged on the top of the fixed rods (201), guide wheels (203) arranged in the fixed sleeves (202), and motors (204) arranged on one side of the fixed sleeves (202).
3. The high-precision welding device for municipal pressure steel pipes according to claim 2, characterized in that: The top of the fixed sleeve (202) is provided with a mounting plate (205), the inside of the mounting plate (205) is provided with a rotating wheel (206), and the outer wall of the rotating wheel (206) is provided with a silica gel ring (207).
4. The high-precision welding device for municipal pressure steel pipes according to claim 3, characterized in that: The top of the workboard (101) is provided with a workbox (110), and the top of the workbox (110) is provided with a protective cover (113).
5. A high precision welding device for municipal pressure steel pipes according to claim 4, characterized in that: Both sides of the workbox (110) are provided with cleaning doors (112), and the inside of the protective cover (113) is provided with a protective groove (111).
6. A high precision welding device for municipal pressure steel pipes according to claim 5, characterized in that: The top of the protective cover (113) is provided with a support frame (114), the bottom of the support frame (114) is provided with a linear sliding rail (115), the bottom of the linear sliding rail (115) is provided with a second hydraulic cylinder (116), and the bottom of the second hydraulic cylinder (116) is provided with a welding machine (117).
7. A high precision welding device for municipal pressure steel pipes according to claim 6, characterized in that: The bottom of the workboard (101) is provided with support legs (118), and the bottom of the support legs (118) is provided with support feet (119).