Automatic welding tool clamp platform for road guardrails

By designing a welding fixture platform with a rectangular frame structure and utilizing a synchronous system of hydraulic push rods and motor drive, the problem of large gaps in guardrail welding was solved, thereby improving the stability and efficiency of welding.

CN223997680UActive Publication Date: 2026-03-17QINGDAO STAR-RISING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In the existing road guardrail welding process, the connection between the horizontal and vertical bars lacks a clamping structure, resulting in large gaps, making welding laborious and difficult to guarantee quality.

Method used

An automatic welding fixture platform for road guardrails was designed. It adopts a rectangular frame structure and is equipped with hydraulic push rods and pressure plates. The hydraulic push rods drive the pressure plates to press the longitudinal and transverse bars. Combined with the synchronous rollers and synchronous belts driven by the motor, the welding fixture frame can move synchronously, ensuring welding stability and reducing gaps.

Benefits of technology

It effectively reduces the gap between the horizontal and vertical bars, lowers the welding difficulty, improves welding quality and efficiency, and relieves the burden of manual tightening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic welding tool clamp platform for a road guardrail, and relates to the technical field of road guardrail welding. The welding clamp comprises a welding support platform and a welding clamp frame installed on the welding support platform, and further comprises a transverse frame plate fixedly arranged on the inner wall of the welding clamp frame, a butt-joint plate is arranged on the upper portion of the transverse frame plate, and a plate connecting bottom groove matched with the transverse frame plate is formed in the bottom of the butt-joint plate; and the connecting plate opening is formed in the surface of the butt-joint plate. The positions of the butt joint plate and the limiting flitch plate can be replaced according to the actual guardrail size, placement of the guardrail is limited, in order to reduce direct gaps between transverse rods and longitudinal rods of the guardrail and improve the welding effect, the hydraulic push rod and the pressing plate part are arranged on one side of the inner wall of the welding clamp frame, and under the pressure of the pressing plate part, the welding effect is improved. The butt joint strength of the transverse rods and the longitudinal rods is better, gaps are smaller, the two hands can be released in the process, the welding difficulty is greatly reduced, and the welding quality is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of road guardrail welding technology, and in particular relates to an automatic welding fixture platform for road guardrails. Background Technology

[0002] Traffic barriers are traffic safety facilities installed on the outer side of road shoulders, traffic dividers, and pedestrian curbs. They absorb collision energy by deforming themselves or allowing vehicles to climb, thereby changing the direction of travel, preventing vehicles from going off the road or entering oncoming lanes, and minimizing injury to occupants.

[0003] For welding guardrails, the process is generally carried out on a welding platform. After the two sets of horizontal and vertical bars of the guardrail are placed, the connection between the horizontal and vertical bars is welded using a welding gun. However, after the horizontal and vertical bars are placed, there is no clamping structure at the connection, resulting in large gaps. Manual assistance is required to tighten them, making the welding process quite laborious. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automatic welding fixture platform for road guardrails, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an automatic welding fixture platform for road guardrails, comprising a welding support platform and a welding fixture frame mounted on the welding support platform, and further comprising:

[0007] The cross frame plate is fixed to the inner wall of the welding fixture frame. The upper part of the cross frame plate is provided with a butt plate. The bottom of the butt plate is provided with a bottom groove for the butt plate that is compatible with the cross frame plate. The butt plate has an opening on its surface. A limiting plate is installed on the upper part of the butt plate, and the surface of the limiting plate is provided with an installation hole for engaging with the opening of the butt plate.

[0008] The hydraulic push rod is fixed to the inner wall of the welding fixture frame, and the output end of the hydraulic push rod is connected to the pressure plate.

[0009] Furthermore, the surface of the crossbeam has perforations, and multiple sets of perforations are evenly distributed along the surface of the crossbeam, with the crossbeam and the connecting plate arranged in a cross shape.

[0010] Furthermore, the perforations on the support plate are compatible with the openings on the connecting plate, and the welding fixture frame adopts a rectangular frame structure.

[0011] Furthermore, the limiting plate is L-shaped, and two sets of opposing limiting plates form a group, with a guardrail-like gap between the two sets of opposing limiting plates.

[0012] Furthermore, the inner wall of the welding support platform is provided with a horizontal support plate, which is stepped, and the surface of the support plate is provided with stepped track grooves.

[0013] Furthermore, a motor drive unit is fixed to the surface supporting the horizontal plate. The output end of the motor drive unit is connected to two sets of opposing synchronous rollers through a synchronous connecting shaft. A support block is provided at the center of the synchronous connecting shaft.

[0014] Furthermore, a synchronous belt is fitted onto the surface of the synchronous roller, and a bottom groove of a connecting plate that slides along the groove of the track plate is installed at the bottom of the welding fixture frame. The side wall supporting the horizontal plate is reinforced with a positioning cylinder by bolts.

[0015] This utility model has the following beneficial effects:

[0016] This utility model designs the welding fixture frame as a rectangular frame with a hollow interior, facilitating welding of the guardrail at different heights. The design incorporates matching through holes on the surfaces of the horizontal and vertical rails, allowing for adjustments to the positions of the railing and limiting plates to accommodate different guardrail dimensions. Furthermore, to reduce gaps between the horizontal and vertical rails and improve welding quality, a hydraulic push rod and pressure plate are installed on one side of the welding fixture frame's inner wall. The pressure from the pressure plate enhances the joint strength of the horizontal and vertical rails, reducing gaps. This process frees up the hands, significantly reducing welding difficulty and improving welding quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the welding fixture frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the bottom groove of the connecting plate in this utility model;

[0021] Figure 4 This is an enlarged view of the docking plate of this utility model;

[0022] Figure 5 This is an enlarged view of section A of this utility model;

[0023] Figure 6 This is an enlarged view of the part of the horizontal plate that supports the present invention;

[0024] Figure 7 This is a schematic diagram of the connection between the motor drive body and the synchronous roller of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Welding fixture frame; 2. Horizontal support plate; 3. Perforated support plate; 4. Butt joint plate; 5. Opening in the connecting plate; 6. Limiting plate; 7. Hydraulic push rod; 8. Pressure plate; 10. Support for horizontal plate; 11. Track groove plate; 12. Bottom groove of connecting plate; 13. Welding support platform; 14. Motor drive body; 15. Synchronous roller; 16. Support block; 17. Synchronous belt; 18. Positioning cylinder; 19. Synchronous connecting shaft. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-7 As shown, this utility model is an automatic welding fixture platform for road guardrails, including a welding support platform 13 and a welding fixture frame 1 installed on the welding support platform 13. The welding fixture frame 1 adopts a frame design, allowing it to be mounted above the welding support platform 13. Two sets of opposing supporting horizontal plates 10 are fixed to the inner wall of the welding support platform 13, and the supporting horizontal plates 10 are stepped. Each supporting horizontal plate 10 has a track groove plate 11 on its upper surface, and a connecting plate bottom groove 12 is fixed to the bottom of the welding fixture frame 1. The connecting plate bottom groove 12 allows the track groove plate 11 to slide. Therefore, the supporting horizontal plates 10 can be divided into upper and lower spaces, which can be connected to the welding fixture frame 1 respectively, allowing the upper and lower welding fixture frames 1 to perform welding work at different heights without affecting lateral movement.

[0029] Multiple sets of horizontal support plates 2 are arranged inside the hollow interior of the welding fixture frame 1, with the horizontal support plates 2 spaced apart. The two ends of the horizontal support plates 2 are fixed to the inner walls of the geotechnical welding fixture frame 1. A connecting plate 4 is installed above the horizontal support plate 2, and a connecting plate bottom groove 12 is opened at the bottom of the connecting plate 4 so that the connecting plate bottom groove 12 can be locked above the horizontal support plate 2, so that the connecting plate 4 and the horizontal support plate 2 are arranged in a cross shape after connection. Multiple sets of support plate through holes 3 are opened at equal intervals in the longitudinal direction on the surface of the horizontal support plate 2, and multiple sets of connecting plate openings 5 ​​are opened at equal intervals in the longitudinal direction on the surface of the support plate through holes 3, and the openings of the support plate through holes 3 and the connecting plate openings 5 ​​are adapted. When the position of the connecting plate 4 on the horizontal support plate 2 is adjusted, the two can be fixed relative to each other by screwing in the support plate through holes 3 and connecting plate openings 5. A limiting plate 6 can also be connected at the connecting plate opening 5, so that the limiting plate 6 sits above the connecting plate 4, and each set of limiting plates 6 Two sets of limit plates 6 are set up and distributed opposite each other. Each set of limit plates 6 is L-shaped, and there is a gap between the back-to-back limit plates 6. This gap is used for the subsequent insertion of the crossbars of the guardrail. The hydraulic push rod 7 is fixed to the inner wall of the welding fixture frame 1. The output end of the hydraulic push rod 7 is connected to the pressure plate part 8. During actual welding, the longitudinal bar of the guardrail is placed on one side of the inner wall of the welding fixture frame 1, and the other set of longitudinal bars is placed on the surface near the pressure plate part 8. The crossbars are placed in the gap of each set of limit plates 6 to form the initial shape of the guardrail. Then the gap between the crossbars and the longitudinal bars is welded. In order to reduce the gap between the crossbars and the longitudinal bars, the hydraulic push rod 7 drives the pressure plate part 8 to apply pressure to the longitudinal bars, so that the two sets of longitudinal bars and the crossbars are pressed together. In this way, the gap can be reduced, the welding stability can be improved, and the hands that were originally used to press the gap can be freed up, which greatly reduces the difficulty of the work and improves the work efficiency.

[0030] A motor drive body 14 is fixedly mounted on the surface supporting the horizontal plate 10. The output end of the motor drive body 14 is connected to two sets of opposing synchronous rollers 15 via a synchronous connecting shaft 19. A support block 16 is initially provided at the center of the synchronous connecting shaft 19. A synchronous belt 17 is sleeved on the surface of the synchronous roller 15, and a positioning cylinder 18 is reinforced on the side wall of the synchronous belt 17 by bolts. The inner wall of the synchronous belt 17 away from the synchronous roller 15 is also connected by a steering roller. Under the drive of the motor drive body 14 and the synchronous connecting shaft 19, the two sets of synchronous belts 17 with a spacing are rotated synchronously. At the same time, the surface of the synchronous belt 17 is connected to the welding fixture frame 1. Therefore, the two sets of welding fixture frames 1 distributed vertically can move laterally in the upper and lower spaces synchronously under the drive of the motor drive body 14, which is convenient for welding the guardrail vertically. At the same time, after the welding fixture frame 1 reaches the designated position, the positioning cylinder 18 presses the welding fixture frame 1, which improves the stability of the welding fixture frame 1 during welding.

[0031] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A road guardrail automatic welding tooling fixture platform, comprising a welding support platform (13) and a welding fixture frame (1) installed on the welding support platform (13), characterized in that, Also includes: The upper part of the transverse frame plate (2) is provided with a butt joint plate (4), and the bottom of the butt joint plate (4) is provided with a butt joint plate bottom groove (12) matched with the transverse frame plate (2); The surface of the butt joint plate (4) is provided with an interface plate opening (5), the upper part of the butt joint plate (4) is provided with a limiting plate (6), and the surface of the limiting plate (6) is provided with a mounting hole matched with the interface plate opening (5); The hydraulic push rod (7) is fixedly arranged in the inner wall of the welding clamp frame (1), and the output end of the hydraulic push rod (7) is connected with the pressing plate part (8).

2. A road barrier automatic welding tool clamp platform according to claim 1, characterized in that, The surface of the transverse frame plate (2) is provided with a plurality of groups of frame plate perforations (3) distributed at equal intervals along the surface of the transverse frame plate (2), and the transverse frame plate (2) and the butt joint plate (4) are cross-shaped.

3. A road barrier automatic welding tool clamp platform according to claim 2, characterized in that, The frame plate perforation (3) is matched with the opening of the interface plate opening (5), and the welding clamp frame (1) adopts a rectangular frame structure.

4. The automatic welding fixture platform for road guardrails according to claim 1, characterized in that, The limiting plate (6) is L-shaped, and two groups of opposite limiting plates (6) are formed into a group, and there is a guardrail gap between the two groups of opposite limiting plates (6).

5. The automatic welding fixture platform for road guardrails according to claim 1, characterized in that, The inner wall of the welding support platform (13) is provided with a support horizontal plate (10), the support horizontal plate (10) is in a stepped shape, and the surface of the support horizontal plate (10) is provided with a stepped track groove plate (11).

6. A road barrier automatic welding tool clamp platform according to claim 1, characterized in that, The surface of the support horizontal plate (10) is fixedly provided with a motor driving body (14), the output end of the motor driving body (14) is connected with two groups of opposite synchronous rollers (15) through a synchronous connecting shaft (19), and the center part of the synchronous connecting shaft (19) is provided with a support block (16).

7. A road barrier automatic welding tool clamp platform according to claim 6, characterized in that, The surface of the synchronous roller (15) is provided with a synchronous belt (17), the bottom of the welding clamp frame (1) is provided with an interface plate bottom groove (12) sliding along the groove of the track groove plate (11), and the side wall of the support horizontal plate (10) is reinforced by a positioning cylinder (18) through bolts.