Welding tool for welding steel plate guardrail
By designing adjustable welding fixtures, the problem of the narrow applicability of traditional fixtures was solved, enabling effective fixing of steel plate guardrails of different sizes, improving welding quality and efficiency, and meeting the needs of road safety facilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional steel plate guardrail welding fixtures can only fix steel plate guardrails of a fixed size, and cannot adapt to steel plate guardrails of different sizes. Their application range is narrow and cannot meet the needs of urban traffic development and road safety.
A welding fixture comprising a base, a slide, a pressure plate, a baffle, a threaded post, and a knob was designed. Through the cooperation of the threaded post and the knob, the base and the baffle are moved and fixed by ball bearings and guide slide, adapting to steel plate guardrails of different sizes.
It enables effective fixing of steel plate guardrails of different sizes, expands the scope of application, improves welding efficiency and quality, and meets the quality and installation efficiency requirements of road safety facilities.
Smart Images

Figure CN224026832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding tooling technology, and more specifically, to a welding tooling for welding steel plate guardrails. Background Technology
[0002] Welding fixtures are a set of flexible clamps used for welding various weldable materials. They are mainly used for welding large, medium, and small materials, as well as for auxiliary positioning welding of structural products in various industries. They can improve welding quality and efficiency, ensure assembly accuracy, control welding deformation, and are widely used in many fields such as steel structures, vehicle manufacturing, rail transportation, and engineering machinery, especially in the welding of steel plate guardrails.
[0003] For example, Chinese patent disclosure: A welding fixture for the outer guardrail frame of a construction hoist, application number: CN202221195227.2. The guardrail frame accessories include at least supporting angle steel, steel plate, two wheel rope brackets, two Z-shaped bending strips, and multiple guide rail brackets, including two support strips, two receiving strips, two first positioning components, and multiple second positioning components. In the welding state, the two Z-shaped bending strips are respectively placed on the two support strips, the two first positioning components respectively fix the two wheel rope brackets to the two Z-shaped bending strips, the multiple second positioning components respectively fix the multiple guide rail brackets to the two Z-shaped bending strips, and the supporting angle steel and the steel plate are respectively placed between the two Z-shaped bending strips and on the two receiving strips. This utility model helps to solve the problem in the prior art of using simple splicing brackets to manufacture guardrail frames, where each part needs to be measured with a tape measure before welding, resulting in time-consuming welding operations and large overall errors.
[0004] However, with the rapid development of urban traffic and the increasing demand for road traffic safety, steel plate guardrails, as an important road safety protection facility, are receiving increasing attention for their quality and installation efficiency. Traditional steel plate guardrail welding fixtures can only fix steel plate guardrails of a fixed size, and the size of steel plate guardrails varies depending on the scope of use, resulting in a narrow range of applications. Utility Model Content
[0005] The main objective of this utility model is to provide a welding fixture for welding steel plate guardrails, which can effectively solve the problem in the background art that with the rapid development of urban traffic and the continuous improvement of road traffic safety requirements, steel plate guardrails, as important road safety protection facilities, are receiving increasing attention for their quality and installation efficiency. Traditional steel plate guardrail welding fixtures can only fix steel plate guardrails of a fixed size, while the size of steel plate guardrails varies depending on the scope of use, resulting in a narrow range of applications.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A welding fixture for welding steel plate guardrails includes two bases. Each base has a sliding groove. A first guide groove is provided on the inner wall of one side of the sliding groove. A pressure plate is provided in the sliding groove. A baffle is provided between the first guide groove and the pressure plate. A second guide groove is provided on both sides of the baffle. Two balls are provided in the second guide groove. A threaded hole is provided on one side of the base. A threaded post is provided in the threaded hole. A knob is provided on the threaded post. A pad is fixedly provided on the side of the base that is close to each other.
[0008] Preferably, the pressure plate includes a pressure plate base, a third guide groove is provided on the side of the pressure plate base near the first guide groove, and a plurality of fourth guide grooves are provided on both sides of the pressure plate base, and a guide slider is slidably disposed in the fourth guide groove.
[0009] Preferably, the threaded column is rotatably connected to the pressure plate base.
[0010] Preferably, the third guide groove is located directly above the first guide groove of the groove.
[0011] Preferably, different portions of the ball are located in the first guide groove and the third guide groove, respectively.
[0012] The guide slider is fixedly installed on the inner wall of the slide groove.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] (1) When using this utility model, when it is necessary to fix the steel plate guardrail, first turn the knob, the knob drives the threaded column to rotate, and the threaded column moves the pressure plate base away from the first guide groove, releasing the compression and fixing of the baffle, leaving a certain gap between the pressure plate base and the baffle. Then, the ball bearing and the first guide groove can be used to move the baffle in the specified direction, or the ball bearing and the second guide groove can be used to move the base in the specified direction, so that the two bases and the baffle fit against the steel plate guardrail. Then turn the knob again to move the pressure plate base towards the baffle, and use the pressure plate base to compress and fix the baffle, so that the base and the baffle can no longer move at will. Thus, the two bases and the baffle are used to clamp and fix the steel plate guardrail, and the pad is used to prevent the steel plate guardrail from contacting the bottom surface. It can adapt to steel plate guardrails of different sizes and expand the scope of application. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a welding fixture for welding steel plate guardrails according to this utility model;
[0016] Figure 2This is a schematic diagram of the internal structure of a welding fixture for welding steel plate guardrails according to this utility model;
[0017] Figure 3 This is a schematic diagram of the pressure plate in a welding fixture for welding steel plate guardrails according to this utility model.
[0018] In the diagram: 1. Base; 2. Slide groove; 3. First guide slide groove; 4. Pressure plate; 401. Pressure plate base; 402. Third guide slide groove; 403. Fourth guide slide groove; 404. Guide slider; 5. Baffle; 6. Second guide slide groove; 7. Ball bearing; 8. Threaded hole; 9. Threaded post; 10. Knob; 11. Pad. Detailed Implementation
[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0020] like Figure 1 and Figure 2 As shown, a welding fixture for welding steel plate guardrails includes two bases 1. Each base is provided with a sliding groove 2. A first guide groove 3 is provided on the inner wall of one side of the sliding groove 2. A pressure plate 4 is provided in the sliding groove 2. A baffle 5 is provided between the first guide groove 3 and the pressure plate 4. A second guide groove 6 is provided on both sides of the baffle 5. Two balls 7 are provided in the second guide groove 6. A threaded hole 8 is provided on one side of each base 1. A threaded post 9 is provided in the threaded hole 8. A knob 10 is provided on the threaded post 9. A pad 11 is fixedly provided on the side of each base 1 that is close to each other.
[0021] like Figure 3 As shown, in another embodiment of the present invention, the pressure plate 4 includes a pressure plate base 401. A third guide groove 402 is provided on the side of the pressure plate base 401 near the first guide groove 3. A plurality of fourth guide grooves 403 are provided on both sides of the pressure plate base 401. A guide slider 404 is slidably disposed in the fourth guide groove 403.
[0022] When it is necessary to press and fix the baffle 5, the pressure plate base 401 is moved toward the baffle 5 by the threaded column 9, and the moving direction of the pressure plate base 401 is fixed by the fourth guide groove 403 and the guide slider 404, thereby pressing and fixing the baffle 5. When it is necessary to move the position of the baffle 5 or the base 1, the pressing and fixing of the baffle 5 is first released, so that there is a certain gap between the pressure plate base 401 and the baffle 5. Then, the baffle 5 can be moved in the specified direction by the ball bearing 7 and the first guide groove 3, or the base 1 can be moved in the specified direction by the ball bearing 7 and the second guide groove 6, thereby adapting to steel plate guardrails of different sizes.
[0023] The working principle of a welding fixture for welding steel plate guardrails:
[0024] When using the steel plate guardrail, first turn the knob 10. The knob 10 drives the threaded column 9 to rotate, which in turn moves the pressure plate base 401 away from the first guide groove 3, releasing the pressure on the baffle 5 and leaving a certain gap between the pressure plate base 401 and the baffle 5. Then, the ball bearing 7 and the first guide groove 3 can be used to move the baffle 5 in a specified direction, or the ball bearing 7 and the second guide groove 6 can be used to move the base 1 in a specified direction, so that the two bases 1 and the baffle 5 fit against the steel plate guardrail. Then, turn the knob 10 again to move the pressure plate base 401 towards the baffle 5, using the pressure plate base 401 to press and fix the baffle 5, so that the base 1 and the baffle 5 can no longer move freely. Thus, the two bases 1 and the baffle 5 are used to clamp and fix the steel plate guardrail, and the pad 11 is used to prevent the steel plate guardrail from contacting the bottom surface. This method can accommodate steel plate guardrails of different sizes.
[0025] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A welding fixture for welding steel plate guardrails, comprising two bases (1), characterized in that: The base is provided with a sliding groove (2), and a first guide groove (3) is provided on the inner wall of one side of the sliding groove (2). A pressure plate (4) is provided in the sliding groove (2). A baffle (5) is provided between the first guide groove (3) and the pressure plate (4). A second guide groove (6) is provided on both sides of the baffle (5). Two balls (7) are provided in the second guide groove (6). A threaded hole (8) is provided on one side of the base (1). A threaded post (9) is provided in the threaded hole (8). A knob (10) is provided on the threaded post (9). A pad (11) is fixedly provided on the side of the base (1) that is close to each other.
2. The welding fixture for welding steel plate guardrails according to claim 1, characterized in that: The pressure plate (4) includes a pressure plate base (401). A third guide groove (402) is provided on the side of the pressure plate base (401) near the first guide groove (3). Several fourth guide grooves (403) are provided on both sides of the pressure plate base (401). A guide slider (404) is slidably disposed in the fourth guide groove (403).
3. The welding fixture for welding steel plate guardrails according to claim 2, characterized in that: The threaded column (9) is rotatably connected to the pressure plate base (401).
4. The welding fixture for welding steel plate guardrails according to claim 3, characterized in that: The third guide groove (402) is located directly above the first guide groove (3) of the groove (2).
5. The welding fixture for welding steel plate guardrails according to claim 4, characterized in that: Different portions of the ball (7) are located in the first guide groove (3) and the third guide groove (402), respectively.
6. The welding fixture for welding steel plate guardrails according to claim 5, characterized in that: The guide slider (404) is fixedly installed on the inner wall of the slide groove (2).
Citation Information
Patent Citations
Welding tool for outer guardrail door frame of construction hoist
CN217493216U