Steel pipe welding slag cleaning device
By employing a combination of active and passive roller positioning with a hydraulically driven roller chain hammer in the steel pipe welding slag cleaning device, the problem of low cleaning efficiency in existing devices has been solved, achieving automated and efficient welding slag cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-07
AI Technical Summary
Existing steel pipe welding slag cleaning devices are inefficient at cleaning tightly adhered and deeply embedded welding slag, requiring manual intervention, which affects work efficiency and ease of operation.
Design a steel pipe welding slag cleaning device, which uses active rollers and passive rollers to center the steel pipe, and combines hydraulic rods to drive a rotary motor and drum chain hammers, and uses staggered metal chains to fully contact the weld and knock it clean.
It achieves a high degree of automation, eliminates the need for complicated installation processes, cleans more thoroughly, significantly improves work efficiency, and enhances ease of operation.
Smart Images

Figure CN224088349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing technology, specifically to a steel pipe welding slag cleaning device. Background Technology
[0002] Steel pipe welding refers to the process of joining steel pipes or steel pipe fittings together by heating, pressurizing, etc. Specifically, welded steel pipes are pipes made by bending steel plates or strips into shape and then welding them. Taking round pipe welding as an example, the radial gaps at the ends of two steel pipes need to be connected during welding; and a lot of weld slag is inevitably generated during welding, which is a hard and brittle substance that adheres to the weld metal after the weld cools. In related technologies, such as the weld slag cleaning device for steel pipe production in patent CN212018804U, a rotating tube is used to fix and limit the steel pipe. The first motor, first gear, and second gear drive the steel pipe to rotate slowly, while the second motor and third gear drive the fourth gear to rotate quickly. The connecting rod drives the sliding vertical column to move back and forth quickly along the slide rail, which drives the slag removal hammer to repeatedly hammer and clean the weld seam of the slowly rotating steel pipe. The file pattern enhances the cleaning effect of the weld slag. The system enables automated cleaning of welding slag, which is more effective and efficient than manually cleaning the weld seam with a hammer.
[0003] The above-mentioned device still has the following shortcomings in practical application. For example, the installation process for steel pipes is too cumbersome and time-consuming. Furthermore, since the weld slag on the steel pipe weld is often uneven, the end of the slag removal hammer does not fully contact the weld slag. Even if the steel pipe is repeatedly struck, it is still difficult to ensure that some tightly adhered and deeply embedded weld slag is knocked off. Therefore, in such cases, manual knocking and cleaning of the weld slag is still required, which affects work efficiency. As a result, the practicality and ease of operation of the device need to be further improved. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] Therefore, the purpose of this utility model is to provide a steel pipe welding slag cleaning device to solve the problem mentioned in the background art that the existing steel pipe production welding slag cleaning devices are difficult to guarantee that some tightly adhered and deeply adhered welding slag can be knocked off. Therefore, in such cases, manual knocking and cleaning of welding slag is still required, which affects work efficiency and makes the device need to be further improved in terms of practicality and ease of operation.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel pipe welding slag cleaning device, comprising a base plate, a row of active rollers and passive rollers parallel to the active rollers arranged along the length of the upper end of the base plate, and a rotary drive assembly for driving all active rollers to rotate axially. A horizontal rail is fixedly arranged above one side of the base plate, and a linear rail groove is provided on one side of the horizontal rail. A slide block is horizontally slidable inside the linear rail groove, and a transverse drive assembly for driving the slide block to move left and right. A longitudinally arranged hydraulic rod is fixedly extended from one side of the slide block. A rotary motor is provided at the bottom output end of the hydraulic rod, and a roller chain hammer is provided at the output end of the rotary motor. The rotary motor drives the roller chain hammer to rotate longitudinally.
[0007] In a preferred embodiment of the steel pipe welding slag cleaning device of the present invention, a support frame is fixed at both ends of the upper part of the base plate;
[0008] The rotary drive assembly includes a hinged seat fixed to the upper end of the base plate and used for rotating the active roller and the passive roller, a main shaft coaxially connected to the adjacent active roller, and a first servo motor mounted on the support frame and used to drive the main shaft to rotate axially.
[0009] As a preferred embodiment of the steel pipe welding slag cleaning device of this utility model, the transverse drive assembly includes a lead screw with both ends rotatably installed inside the linear rail groove and threadedly connected to the slide block, and a second servo motor disposed outside the transverse rail for driving the lead screw to rotate axially.
[0010] As a preferred embodiment of the steel pipe welding slag cleaning device of this utility model, the roller chain hammer includes a cylinder shaft coaxially mounted on the output shaft end of a rotary motor, and several rows of metal chains interlaced on the outer wall of the cylinder shaft.
[0011] As a preferred embodiment of the steel pipe welding slag cleaning device of this utility model, the upper end of the base plate is further provided with a support frame two for fixing the horizontal rail, and one side of the slide is connected to an extension frame for fixing the hydraulic rod.
[0012] In a preferred embodiment of the steel pipe welding slag cleaning device described in this utility model, a PLC controller is also provided on one side of the support frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (i) This steel pipe welding slag cleaning device centers the steel pipe by placing it directly between the active roller and the passive roller designed side by side. During operation, the rotary drive component drives the active roller to rotate. Under the action of friction, the steel pipe and the passive roller will rotate passively. When unloading, the steel pipe can be directly taken out, which eliminates the complicated and redundant installation process of the existing technology, saving time and effort.
[0015] (ii) This steel pipe welding slag cleaning device uses a hydraulic rod to drive a rotary motor to descend and the rotary motor to drive a drum chain hammer to rotate rapidly. Several staggered and radially swinging metal chains can make full contact with the welding slag on the weld bead and knock the welding slag to clean it. Compared with the existing welding slag cleaning, it is more thorough and efficient, which significantly improves the practicality and ease of operation of the cleaning device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the slag-removing device of this utility model.
[0018] In the diagram: 100, base plate; 110, support frame one; 120, support frame two; 200, active roller; 210, passive roller; 300, rotary drive assembly; 310, hinged seat; 320, main shaft; 330, first servo motor; 400, horizontal rail; 4001, linear rail groove; 410, slide block; 420, extension frame; 500, transverse drive assembly; 510, lead screw; 520, second servo motor; 600, hydraulic rod; 700, rotary motor; 800, roller chain hammer; 810, cylinder shaft; 820, metal chain; 900, PLC controller. Detailed Implementation
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0022] Figures 1-2The diagram shown is a complete structural schematic of a steel pipe welding slag cleaning device according to this utility model. Please refer to [link / reference]. Figures 1-2 This embodiment of a steel pipe welding slag cleaning device includes a base plate 100. A row of active rollers 200 and passive rollers 210 parallel to the active rollers 200 are arranged along the length of the upper end of the base plate 100. It also includes a rotary drive assembly 300 for driving all active rollers 200 to rotate axially. A horizontal rail 400 is fixedly arranged above one side of the base plate 100. A straight rail groove 4001 is provided on one side of the horizontal rail 400. A slide block 410 is horizontally slidable inside the straight rail groove 4001. A transverse drive assembly 500 is used to drive the slide block 410 to move left and right. A longitudinally arranged hydraulic rod 600 is fixedly extended from one side of the slide block 410. A rotary motor 700 is provided at the bottom output end of the hydraulic rod 600. A roller chain hammer 800 is provided at the output end of the rotary motor 700. The roller chain hammer 800 is driven to rotate longitudinally by the rotary motor 700.
[0023] Support frames 110 are fixed at both ends of the upper part of the base plate 100; the rotary drive assembly 300 includes a hinged seat 310 fixed to the upper end of the base plate 100 for rotating the active roller 200 and the passive roller 210, a main shaft 320 coaxially connected to the adjacent active roller 200, and a first servo motor 330 mounted on the support frame 110 for driving the main shaft 320 to rotate axially. It can be understood that by placing the steel pipe directly between the parallel active roller 200 and the passive roller 210, the steel pipe is centered. During operation, the rotary drive assembly 300 drives the active roller 200 to rotate, and under the action of friction, the steel pipe and the passive roller 210 will rotate passively. During unloading, the steel pipe can be directly removed, eliminating the complex and redundant installation process of existing technologies, saving time and effort.
[0024] The lateral drive assembly 500 includes a lead screw 510 rotatably mounted at both ends inside the linear guide groove 4001 and threadedly connected to the slide 410, and a second servo motor 520 disposed on the outside of the transverse rail 400 for driving the lead screw 510 to rotate axially. It is understood that since the weld line of the steel pipe may not necessarily correspond to the longitudinal direction of the roller chain hammer 800 after it has been placed and stabilized, the lateral drive assembly 500 and the slide 410 can drive the rotary motor 700 and the roller chain hammer 800 to move laterally until the longitudinal direction of the roller chain hammer 800 corresponds to the weld line, which is simple and convenient. The roller chain hammer 800 includes a cylindrical shaft 810 coaxially mounted at the output shaft end of the rotary motor 700, and several rows of metal chains 820 interlacedly connected to the outer wall of the cylindrical shaft 810. It is important to note that the metal chains 820 here can be made of flexible metal belts such as thin chains or steel wire ropes, and the metal chains 820 are staggered, so that when the drum shaft 810 rotates, the metal chains 820 can fully contact and strike the welding slag on the weld bead. Specifically, in use, the rotary drive assembly 300 drives the rollers and steel pipe to rotate. Then, according to the position of the weld bead, the transverse drive assembly 500 drives the slide 410 on the transverse rail 400 and the rotary motor 700 to move left and right until the longitudinal line of the drum chain hammer 800 is perpendicular to the weld bead line. Then, the hydraulic rod 600 drives the rotary motor 700 to descend and the rotary motor 700 drives the drum chain hammer 800 to rotate rapidly. Through several staggered and radially swinging metal chains 820, full contact can be formed with the welding slag on the weld bead, and the welding slag can be knocked and cleaned. Compared with existing welding slag cleaning, it is more thorough and efficient, which significantly improves the practicality and ease of operation of this cleaning device.
[0025] Furthermore, the upper end of the base plate 100 is also provided with a support frame 2 120 for fixing and mounting the horizontal rail 400, and one side of the slide 410 is connected to an extension frame 420 for fixing and mounting the hydraulic rod 600. It can be understood that the horizontal rail 400 can be raised and mounted by the support frame 2 120, and the hydraulic rod 600, the rotary motor 700 and the roller chain hammer 800 can be longitudinally positioned by the extension frame 420, so that the roller chain hammer 800 is always in the middle of the two rows of rollers.
[0026] Furthermore, a PLC controller 900 is also installed on one side of the support frame 110. Understandably, operators can use the PLC controller 900 to integrate, control, and preset the various drive units of the device, making it more convenient to use.
[0027] In summary, the steel pipe welding slag cleaning device of this embodiment, when in use, involves placing the steel pipe directly between the parallel-designed active roller 200 and passive roller 210, and using the rotary drive assembly 300 to drive the rollers and steel pipe to rotate. Then, according to the position of the weld bead, the transverse drive assembly 500 drives the slide 410 on the transverse rail 400 and the rotary motor 700 to move left and right until the longitudinal line of the roller chain hammer 800 is perpendicular to the weld bead line. Subsequently, the hydraulic rod 600 drives the rotary motor 700 to descend, and the rotary motor 700 drives the roller chain hammer 800 to rotate rapidly. Through several staggered and radially swinging metal chains 820, sufficient contact can be formed with the welding slag on the weld bead, and the welding slag can be knocked and cleaned. Compared with existing welding slag cleaning methods, this method is more thorough and has higher work efficiency.
[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A steel pipe welding slag cleaning device, characterized in that, The system includes a base plate (100), on which a row of active rollers (200) and passive rollers (210) parallel to the active rollers (200) are arranged along its length at the upper end. It also includes a rotary drive assembly (300) for driving all the active rollers (200) to rotate axially. A horizontal rail (400) is fixedly arranged above one side of the base plate (100). A straight rail groove (4001) is provided on one side of the horizontal rail (400). A slide block (410) slides horizontally inside the straight rail groove (4001). A transverse drive assembly (500) is used to drive the slide block (410) to move left and right. A hydraulic rod (600) is extended and fixed on one side of the slide block (410). A rotary motor (700) is provided at the bottom output end of the hydraulic rod (600). A roller chain hammer (800) is provided at the output end of the rotary motor (700). The roller chain hammer (800) is driven to rotate longitudinally by the rotary motor (700).
2. The steel pipe welding slag cleaning device according to claim 1, characterized in that: The upper two ends of the base plate (100) are fixed with support frames (110). The rotary drive assembly (300) includes a hinge seat (310) fixed to the upper end of the base plate (100) and used for rotating the active roller (200) and the passive roller (210), a main shaft (320) coaxially connected to the adjacent active roller (200), and a first servo motor (330) disposed on the support frame (110) and used to drive the main shaft (320) to rotate axially.
3. The steel pipe welding slag cleaning device according to claim 1, characterized in that: The transverse drive assembly (500) includes a lead screw (510) with both ends rotatably mounted inside the linear rail groove (4001) and threadedly connected to the slide (410), and a second servo motor (520) disposed outside the transverse rail (400) for driving the lead screw (510) to rotate axially.
4. The steel pipe welding slag cleaning device according to claim 1, characterized in that: The roller chain hammer (800) includes a cylindrical shaft (810) coaxially mounted on the output shaft end of a rotary motor (700) and several rows of metal chains (820) interlaced on the outer side wall of the cylindrical shaft (810).
5. The steel pipe welding slag cleaning device according to claim 1, characterized in that: The upper end of the base plate (100) is also provided with a support frame two (120) for fixing the horizontal rail (400), and the slide (410) is connected to an extension frame (420) for fixing the hydraulic rod (600) on one side.
6. The steel pipe welding slag cleaning device according to claim 2, characterized in that: A PLC controller (900) is also provided on one side of the support frame (110).
Citation Information
Patent Citations
Welding slag cleaning device for steel pipe production
CN212018804U