A welding device for processing expansion joints of road bridges

Abstract

The present invention belongs to the technical field of welding equipment, and particularly relates to a welding equipment for processing expansion joints of road bridges, including a workbench, a connecting plate fixedly connected to the surface of the workbench, and a bearing plate fixedly connected to the side of the connecting plate away from the workbench. A moving component is installed on the surface of the workbench. The moving component includes a slide rail fixedly connected to the surface of the workbench, a slider slidably connected to the surface of the slide rail, and a base, a reinforcement plate, an anti-collision contact head, and a baffle for fixing the welding equipment. A clamping component is installed on the surface of the reinforcement plate. The clamping component includes a base installed on the surface of the reinforcement plate, and a vertical plate, a connecting frame, a moving frame, a guide bar, a clamping block, and a cylinder arranged on the surface of the base; it has many advantages such as flexible operation, stable workpieces, high welding precision, and strong practicability, providing reliable technical support for the processing of expansion joints of road bridges.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding equipment, and particularly relates to a welding equipment for processing road and bridge expansion joints. Background Art

[0002] Road and bridge expansion joints are important structures set to accommodate the deformation of bridge structures due to factors such as temperature changes and vehicle loads. During the processing of expansion joints, welding is one of the key links. Currently, there are some deficiencies in the existing welding equipment for processing road and bridge expansion joints. On the one hand, the mechanical structure design of traditional welding equipment is relatively simple, and problems such as inaccurate welding positions and insufficient stability may occur during welding. For example, the clamping force of the fixture is not uniform enough, easily causing the displacement of expansion joint components during welding, affecting the welding quality. On the other hand, the automation level of existing equipment is relatively low, and many operations still rely on manual adjustment and control, which not only increases the working intensity of operators but also easily leads to unstable welding parameters due to human factors, thus affecting the consistency of welding effects.

[0003] Therefore, a welding equipment for processing road and bridge expansion joints is designed to solve the above problems. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a welding equipment for processing road and bridge expansion joints, which has many advantages such as flexible operation, stable workpieces, high welding precision, and strong practicability, providing reliable technical support for the processing of road and bridge expansion joints.

[0005] To achieve the above object, the present invention provides the following technical solution: A welding equipment for processing road and bridge expansion joints includes a workbench, a connecting plate fixedly connected to the surface of the workbench, and a bearing plate fixedly connected to the side of the connecting plate away from the workbench:

[0006] A moving component is installed on the surface of the workbench. The moving component includes a slide rail fixedly connected to the surface of the workbench, a slider slidably connected to the surface of the slide rail, and a base, a reinforcement plate, an anti-collision contact head, and a baffle for fixing the welding equipment.

[0007] A clamping component is installed on the surface of the reinforcement plate. The clamping component includes a base installed on the surface of the reinforcement plate and a vertical plate, a connecting frame, a moving frame, a guiding bar, a clamping block, and a cylinder arranged on the surface of the base.

[0008] A welding component is arranged on the surface of the moving frame. The welding component includes a bottom plate, a moving block, a lead screw, a second rotating handle, and a mounting seat arranged on the surface of the moving frame.

[0009] The base is installed on the surface of the slider. The base is fixedly connected to the reinforcement plate. The anti-collision contact heads are fixedly connected to both ends of the slider. The baffles are fixedly connected to both ends of the slide rail. Threaded steel columns are fixedly connected to the bottom surfaces of the workbench and the bearing plate.

[0010] A straight plate is fixedly connected to the surface of the base. A threaded rod is threadedly connected to the surface of the straight plate. The lower end of the threaded rod is fixedly connected to a pressing block. A rubber sleeve is sleeved on the surface of the pressing block. A rotating handle one is fixedly connected to the upper end of the threaded rod.

[0011] An L-shaped plate is installed on the surface of the base. The vertical plate is installed on the surface of the base through the L-shaped plate. The vertical plate is fixedly connected to the connecting frame. The moving frame is fixedly connected to one end of the connecting frame away from the vertical plate. A guiding strip is fixedly connected to the inner side of the moving frame. The clamping blocks are respectively slidably connected to the guiding strip and the moving frame. The cylinder is installed on the surface of the moving frame. The extending shaft of the cylinder is fixedly connected to the surface of the clamping block.

[0012] Rotating rollers one are rotatably connected to the bottom surfaces of the clamping blocks. Rotating rollers two are rotatably connected to the bottom surfaces of the moving frames.

[0013] The bottom plate is fixedly connected to the surface of the moving frame. The moving block is slidably connected to the surface of the moving frame and is also slidably connected to the guiding strip. The mounting seat is installed on the surface of the moving frame. The lead screw is rotatably connected to the mounting seat. One end of the lead screw away from the mounting seat penetrates through the surface of the moving frame and is fixedly connected to a rotating handle two.

[0014] The moving block is threadedly connected to the lead screw. The clamping block is slidably connected to the lead screw.

[0015] A rotating seat one is rotatably connected to the surface of the bottom plate. A rotating rod one is fixedly connected to the surface of the rotating seat one. A rotating seat two is rotatably connected to the surface of the moving block. A rotating rod two is fixedly connected to the surface of the rotating seat two. One ends of the rotating rod one and the rotating rod two away from the moving frame are both rotatably connected to a rotating rod. A welding torch is installed at the lower end of the rotating rod.

[0016] A hinge seat is fixedly connected to the surface of the vertical plate. The rotating shaft part of the hinge seat is rotatably connected to an observation frame. A protection plate is fixedly connected to the inner side of the observation frame. A spring positioning pin shaft is installed on the surface of the hinge seat. A positioning hole adapted to the spring positioning pin shaft is opened on the surface of the observation frame.

[0017] A limiting block is fixedly connected to the lower end of the second rotating roller. A limiting card strip is fixedly connected to one side of the limiting block close to the workbench. A limiting groove adapted to the limiting card strip is formed on the surface of the workbench.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By setting the moving component, the cooperation of the slide rail and the slider in the moving component provides a stable linear moving track for the equipment. When processing expansion joints of road bridges with different specifications, the operator can easily slide the welding equipment to the appropriate position according to actual needs. The base is installed on the surface of the slider to ensure a firm connection between the welding equipment and the moving component. The reinforcing plate further enhances the overall stability of the equipment, so that the equipment will not shake or deviate during the moving process. The anti-collision contact heads are fixedly connected to both ends of the slider. When the slider moves on the slide rail and approaches the limit position, the anti-collision contact heads will first contact the baffle, playing a buffering role to prevent the slider from detaching from the slide rail due to excessive movement, effectively protecting the safety of the equipment and the operator;

[0020] The fixing device composed of a straight plate, a threaded rod, an extrusion block and a first rotating handle provides a reliable solution for fixing the position of the equipment. After the equipment moves to the required position, the operator can drive the threaded rod to rotate by rotating the first rotating handle, so that the extrusion block moves downward to press the surface of the workbench. The rubber sleeve sleeved on the surface of the extrusion block can not only increase the friction force and improve the fixing effect, but also prevent the extrusion block from damaging the surface of the slider. This fixing method is simple and easy to use, and can quickly fix the equipment to ensure that the equipment will not move due to external forces during the welding process;

[0021] 2. By setting the clamping component, the base in the clamping component provides a stable foundation for the entire clamping structure. The vertical plate is installed on the surface of the base through the L-shaped plate, ensuring the perpendicularity and stability of the vertical plate. The connecting frame connects the vertical plate and the moving frame to form a firm whole. The cylinder, as the power source of clamping, can provide a strong thrust. When the extension shaft of the cylinder pushes the clamping block, the clamping block slides along the guiding strip and gradually approaches the workpiece to realize the clamping of the workpiece. This clamping method is fast and powerful, and can firmly fix workpieces of different sizes;

[0022] The first rotating roller on the bottom surface of the clamping block and the second rotating roller on the bottom surface of the moving frame facilitate the adjustment and movement of the workpiece while clamping the workpiece. When it is necessary to adjust the position or angle of the workpiece, the operator can easily push the workpiece, and the first rotating roller and the second rotating roller will rotate accordingly, reducing the friction force between the workpiece and the clamping device, making the operation smoother. This design not only improves the convenience of operation, but also can avoid scratching the surface of the workpiece during the process of adjusting the workpiece, ensuring the quality of the workpiece;

[0023] 3. By setting up the welding assembly, the bottom plate in the welding assembly is fixedly connected to the surface of the moving frame, providing an installation foundation for other components. The moving block is slidably connected to the surface of the moving frame and is also slidably connected to the guiding bar, ensuring the stability and accuracy of the moving block during movement. The cooperation between the lead screw and the mounting seat enables the operator to precisely adjust the position of the moving block by rotating the second handle. The rotation of the lead screw drives the moving block to move smoothly on the moving frame, thereby realizing the fine adjustment of the position of the electric welding gun. This precise position adjustment function can meet the requirements of different welding positions and angles, improving the welding precision.

[0024] The combination of the first rotating seat, the first rotating rod, the second rotating seat, the second rotating rod and the rotating bar provides the electric welding gun with a multi-angle adjustment function. The operator can flexibly adjust the angle of the electric welding gun according to the actual welding situation to ensure the welding quality. When welding the expansion joints with complex shapes, different welding angles may be required to achieve the best welding effect. Through the adjustment of these components, the electric welding gun can rotate freely within a certain range to meet various welding needs.

[0025] The hinge seat on the surface of the vertical plate is connected to the observation frame. The protection plate inside the observation frame can effectively block the strong light and sparks generated during the welding process, protecting the operator's eyes and face. At the same time, the operator can observe the welding process through the observation frame and adjust the welding parameters in a timely manner to ensure the welding quality. The cooperation between the spring positioning pin shaft and the positioning hole enables the observation frame to be fixed at different angles. The operator can adjust the angle of the observation frame according to his own observation needs and fix it with the spring positioning pin shaft, which is convenient for operation.

[0026] 4. The overall structure of this welding equipment is reasonably designed, and each component cooperates with each other to achieve the efficient processing of the expansion joints of road bridges. The coordinated work of the moving component, the clamping component and the welding component enables the operator to complete the welding task quickly and accurately. The clamping component ensures the stability of the workpiece, and the welding component improves the welding precision. The two work together to ensure the welding quality. In the construction of road bridges, the quality of the expansion joints is directly related to the service life and safety of the bridges. The high-quality welding of this equipment can effectively improve the overall performance of the bridges.

[0027] The threaded steel columns are respectively fixedly connected to the bottom surfaces of the workbench and the bearing plate, providing stable support for the equipment. The threaded steel columns have high strength and stability, and can withstand various forces generated during the operation of the equipment, ensuring that the equipment will not shake or tilt. The cooperation between the limit blocks, the limit clamping strips and the limit grooves on the surface of the workbench further limits the moving range of the moving frame. During the welding process, this limiting device can prevent the moving frame from affecting the welding precision due to accidental movement, ensuring the accuracy and stability of the welding process. Description of the Drawings

[0028] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0029] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a schematic diagram of the structure of the base in the present invention;

[0031] Figure 3 is a schematic diagram of the structure of the anti-collision contact in the present invention;

[0032] Figure 4 is a schematic diagram of the structure of the moving frame in the present invention;

[0033] Figure 5 is a schematic diagram of the structure of the lead screw in the present invention;

[0034] Figure 6 is a schematic diagram of the structure of the rotating rod in the present invention;

[0035] Figure 7 in the present invention Figure 5 Enlarged view at position A;

[0036] Figure 8 is a schematic diagram of the structure of the limit clamping strip in the present invention;

[0037] In the figure:

[0038] 1, workbench; 11, connecting plate; 12, bearing plate;

[0039] 2, moving assembly; 21, threaded steel column; 22, slide rail; 23, slider; 24, base; 25, reinforcement plate; 26, anti-collision contact; 27, baffle; 28, straight plate; 29, threaded rod; 210, extrusion block; 211, rubber sleeve; 212, rotary handle one;

[0040] 3, clamping assembly; 31, base; 32, vertical plate; 33, L-shaped plate; 34, connecting frame; 35, moving frame; 36, guide strip; 37, clamping block; 38, cylinder; 39, rotary roller one; 310, rotary roller two;

[0041] 4, welding assembly; 41, bottom plate; 42, moving block; 43, lead screw; 44, rotary handle two; 45, mounting seat; 46, rotary seat one; 47, rotary rod one; 48, rotary seat two; 49, rotary rod two; 410, rotating rod; 411, electric welding gun; 412, hinge seat; 413, observation frame; 414, protection plate; 415, spring positioning pin; 416, positioning hole; 417, limiting groove; 418, limiting block; 419, limit clamping strip. Detailed implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0043] Embodiment: As Figure 1 - Figure 8 shown, the present invention provides a technical solution, a welding device for processing a road and bridge expansion joint, including a workbench 1, a connecting plate 11 fixedly connected to the surface of the workbench 1, and a bearing plate 12 fixedly connected to the side of the connecting plate 11 away from the workbench 1:

[0044] A moving component 2 is installed on the surface of the workbench 1. The moving component 2 includes a slide rail 22 fixedly connected to the surface of the workbench 1, a slider 23 slidably connected to the surface of the slide rail 22, and a base 24, a reinforcing plate 25, a collision prevention contact 26, and a baffle 27 for fixing the welding device;

[0045] A clamping component 3 is installed on the surface of the reinforcing plate 25. The clamping component 3 includes a base 31 installed on the surface of the reinforcing plate 25 and a vertical plate 32, a connecting frame 34, a moving frame 35, a guiding strip 36, a clamping block 37, and a cylinder 38 arranged on the surface of the base 31;

[0046] A welding component 4 is arranged on the surface of the moving frame 35. The welding component 4 includes a bottom plate 41, a moving block 42, a lead screw 43, a second rotating handle 44, and a mounting seat 45 arranged on the surface of the moving frame 35.

[0047] The base 24 is installed on the surface of the slider 23. The base 24 and the reinforcing plate 25 are fixedly connected. The collision prevention contacts 26 are fixedly connected to both ends of the slider 23. The baffles 27 are fixedly connected to both ends of the slide rail 22. Threaded steel columns 21 are fixedly connected to the bottom surfaces of the workbench 1 and the bearing plate 12.

[0048] A straight plate 28 is fixedly connected to the surface of the base 24. A threaded rod 29 is threadedly connected to the surface of the straight plate 28. A lower end of the threaded rod 29 is fixedly connected to a pressing block 210. A rubber sleeve 211 is sleeved on the surface of the pressing block 210. An upper end of the threaded rod 29 is fixedly connected to a first rotating handle 212.

[0049] The surface of the base 31 is provided with an L-shaped plate 33. The vertical plate 32 is installed on the surface of the base 31 through the L-shaped plate 33. The vertical plate 32 is fixedly connected to the connecting frame 34. The moving frame 35 is fixedly connected to one end of the connecting frame 34 away from the vertical plate 32. The guiding strip 36 is fixedly connected to the inner side of the moving frame 35. The clamping blocks 37 are respectively slidably connected to the guiding strip 36 and the moving frame 35. The cylinder 38 is installed on the surface of the moving frame 35. The extension shaft of the cylinder 38 is fixedly connected to the surface of the clamping block 37.

[0050] The bottom surfaces of the clamping blocks 37 are respectively rotatably connected with a first rotating roller 39. The bottom surfaces of the moving frames 35 are respectively rotatably connected with a second rotating roller 310.

[0051] The bottom plate 41 is fixedly connected to the surface of the moving frame 35. The moving block 42 is slidably connected to the surface of the moving frame 35 and is also slidably connected to the guiding strip 36. The mounting seat 45 is installed on the surface of the moving frame 35. The lead screw 43 is rotatably connected to the mounting seat 45. One end of the lead screw 43 away from the mounting seat 45 penetrates through the surface of the moving frame 35 and is fixedly connected to the second rotating handle 44.

[0052] The moving block 42 is threadedly connected to the lead screw 43. The clamping block 38 is slidably connected to the lead screw 43.

[0053] The surface of the bottom plate 41 is rotatably connected with a first rotating seat 46. The surface of the first rotating seat 46 is fixedly connected with a first rotating rod 47. The surface of the moving block 42 is rotatably connected with a second rotating seat 48. The surface of the second rotating seat 48 is fixedly connected with a second rotating rod 49. One ends of the first rotating rod 47 and the second rotating rod 49 away from the moving frame 35 are both rotatably connected with a rotating rod 410. The lower end of the rotating rod 410 is installed with a welding torch 411.

[0054] The surface of the vertical plate 32 is fixedly connected with a hinge seat 412. The rotating shaft part of the hinge seat 412 is rotatably connected with an observation frame 413. The inner side of the observation frame 413 is fixedly connected with a protection plate 414. The surface of the hinge seat 412 is installed with a spring positioning pin 415. The surface of the observation frame 413 is provided with a positioning hole 416 adapted to the spring positioning pin 415.

[0055] The lower end of the second rotating roller 310 is fixedly connected with a limiting block 418. One side of the limiting block 418 close to the workbench 1 is fixedly connected with a limiting card strip 419. The surface of the workbench 1 is provided with a limiting groove 417 adapted to the limiting card strip 419.

[0056] Working principle and usage process of the present invention: The slider 23 can slide on the slide rail 22, driving the base 24 installed on the surface of the slider 23 to move. The base 24 is fixedly connected to the reinforcement plate 25, so that the entire clamping assembly 3 and welding assembly 4 can move on the workbench 1 to adapt to welding requirements at different positions. After the device moves to the required position, the threaded rod 29 is rotated by turning the first handle 212, causing the extrusion block 210 to move downward and extrude the surface of the workbench 1. The rubber sleeve 211 on the surface of the extrusion block 210 increases the friction force, improves the fixing effect, and prevents the device from moving during the welding process. The cooperation of the anti-collision contact 26 and the baffle 27 prevents the slider 23 from disengaging from the slide rail 22 during movement. When moving to the appropriate position, since the cylinder 38 is installed on the surface of the moving frame 35 and its extension shaft is fixedly connected to the clamping block 37, when the cylinder 38 works, it pushes the clamping block 37 to slide along the guide bar 36 and approach the workpiece to realize the clamping of the workpiece. The first rotating roller 39 on the bottom surface of the clamping block 37 and the second rotating roller 310 on the bottom surface of the moving frame 35 facilitate the adjustment and movement of the workpiece while clamping the workpiece. When the position of the workpiece needs to be adjusted, the operator can easily push the workpiece, and the first rotating roller 39 and the second rotating roller 310 will rotate accordingly, reducing the friction force. Since the bottom plate 41 is fixed on the surface of the moving frame 35, the moving block 42 can slide on the surface of the moving frame 35 and is slidably connected to the guide bar 36. By turning the second handle 44 to rotate the lead screw 43, the lead screw 43 is rotatably connected to the mounting seat 45, driving the moving block 42 to move, thereby realizing fine adjustment of the position of the electric welding gun 411. The first rotating seat 46 is fixed on the surface of the bottom plate 41, the first rotating rod 47 is connected to the first rotating seat 46, the second rotating seat 48 is installed on the surface of the moving block 42, and the second rotating rod 49 is connected to the second rotating seat 48. The ends of the first rotating rod 47 and the second rotating rod 49 away from the moving frame 35 are both rotatably connected to the rotating rod 410, and the electric welding gun 411 is installed at the lower end of the rotating rod 410. By adjusting the angles of the first rotating rod 47, the second rotating rod 49, and the rotating rod 410, the angle adjustment of the electric welding gun 411 within a certain range can be realized to adapt to different welding requirements. The hinge seat 412 on the surface of the vertical plate 32 is connected to the observation frame 413. The protection plate 414 inside the observation frame 413 can block the strong welding light and sparks. The spring positioning pin 415 cooperates with the positioning hole 416 on the surface of the observation frame 413 to fix the angle of the observation frame 413, facilitating the operator to observe the welding process. The limiting block 418 at the lower end of the second rotating roller 310 is fixedly connected to the limiting card strip 419, and a limiting groove 417 adapted to the limiting card strip 419 is provided on the surface of the workbench 1. The cooperation of the limiting card strip 419 and the limiting groove 417 limits the moving range of the moving frame 35 to ensure the accuracy of the welding process.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding device for processing expansion joints of road bridges, comprising a workbench (1), a connecting plate (11) fixedly connected to the surface of the workbench (1), and a bearing plate (12) fixedly connected to a side of the connecting plate (11) away from the workbench (1): Features: A moving assembly (2) is installed on the surface of the workbench (1), and the moving assembly (2) comprises a slide rail (22) fixedly connected to the surface of the workbench (1), a slider (23) slidably connected to the surface of the slide rail (22), and a base (24) for fixing the welding equipment, a reinforcement plate (25), an anti-collision contact (26), and a baffle (27); The surface of the reinforcing plate (25) is mounted with a clamping assembly (3), the clamping assembly (3) comprising a base (31) mounted on the surface of the reinforcing plate (25), and a vertical plate (32), a connecting frame (34), a movable frame (35), a guide bar (36), a clamping block (37) and a cylinder (38) arranged on the surface of the base (31); A welding assembly (4) is arranged on the surface of the movable frame (35), and the welding assembly (4) comprises a bottom plate (41), a movable block (42), a screw rod (43), a second rotating handle (44), and a mounting seat (45) arranged on the surface of the movable frame (35); An L-shaped plate (33) is installed on the surface of the base (31); the vertical plate (32) is installed on the surface of the base (31) via the L-shaped plate (33); the vertical plate (32) and the connecting frame (34) are fixedly connected; the mobile frame (35) is fixedly connected to an end of the connecting frame (34) away from the vertical plate (32); the guide bar (36) is fixedly connected to the inner side of the mobile frame (35); the clamping block (37) is slidably connected to the guide bar (36) and the mobile frame (35) respectively; the cylinder (38) is installed on the surface of the mobile frame (35); and the extension shaft of the cylinder (38) is fixedly connected to the surface of the clamping block (37); The bottom surfaces of the clamping blocks (37) are rotatably connected to rotating roller one (39), and the bottom surfaces of the movable frames (35) are rotatably connected to rotating roller two (310).

2. The welding equipment for processing expansion joints of roads and bridges according to claim 1 is characterized in that: The base (24) is mounted on the surface of the slider (23), the base (24) and the reinforcement plate (25) are fixedly connected, the anti-collision contact (26) is fixedly connected to both ends of the slider (23), the baffle (27) is fixedly connected to both ends of the slide rail (22), and the bottom surfaces of the workbench (1) and the bearing plate (12) are fixedly connected with threaded steel columns (21).

3. The welding equipment for processing expansion joints of roads and bridges according to claim 1 is characterized in that: A straight plate (28) is fixedly connected to the surface of the base (24), a threaded rod (29) is threadedly connected to the surface of the straight plate (28), an extrusion block (210) is fixedly connected to the lower end of the threaded rod (29), a rubber sleeve (211) is sleeved on the surface of the extrusion block (210), and a rotating handle (212) is fixedly connected to the upper end of the threaded rod (29).

4. The welding equipment for processing expansion joints of roads and bridges according to claim 1 is characterized in that: The bottom plate (41) is fixedly connected to the surface of the moving frame (35), the moving block (42) is slidably connected to the surface of the moving frame (35) and is slidably connected to the guide bar (36), the mounting seat (45) is mounted on the surface of the moving frame (35), the screw rod (43) and the mounting seat (45) are rotatably connected, and one end of the screw rod (43) away from the mounting seat (45) passes through the surface of the moving frame (35) and is fixedly connected to the second rotating handle (44).

5. The welding equipment for processing expansion joints of roads and bridges according to claim 1 is characterized in that: The moving block (42) is threadedly connected to the screw rod (43), and the clamping block (37) is slidably connected to the screw rod (43).

6. The welding equipment for processing expansion joints of roads and bridges according to claim 1 is characterized in that: The surface of the bottom plate (41) is rotatably connected to a rotating seat 1 (46), the surface of the rotating seat 1 (46) is fixedly connected to a rotating rod 1 (47), the surface of the moving block (42) is rotatably connected to a rotating seat 2 (48), the surface of the rotating seat 2 (48) is fixedly connected to a rotating rod 2 (49), the ends of the rotating rod 1 (47) and the rotating rod 2 (49) away from the moving frame (35) are both rotatably connected to a rotating rod (410), and an electric welding gun (411) is mounted at the lower end of the rotating rod (410).

7. The welding equipment for processing road and bridge expansion joints according to claim 1 is characterized in that: A hinge seat (412) is fixedly connected to the surface of the vertical plate (32); an observation frame (413) is rotatably connected to the rotating shaft of the hinge seat (412); a protective plate (414) is fixedly connected to the inner side of the observation frame (413); a spring positioning pin shaft (415) is installed on the surface of the hinge seat (412); and a positioning hole (416) adapted to the spring positioning pin shaft (415) is opened on the surface of the observation frame (413).

8. The welding equipment for processing road and bridge expansion joints according to claim 1 is characterized in that: The lower end of the second rotating roller (310) is fixedly connected to a limit block (418), and a side of the limit block (418) close to the workbench (1) is fixedly connected to a limit clamping strip (419), and a limit groove (417) adapted to the limit clamping strip (419) is provided on the surface of the workbench (1).

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