A welding device for truck bed fabrication

Abstract

The utility model relates to welding equipment technical field, concretely is a kind of welding device for freight car carriage processing, including operation platform, welding machine and stable welding assembly, the stable welding assembly includes support piece and welding piece, the welding piece includes welding torch and the rotating clamping plate rotationally installed in the top end of welding torch, the support piece includes the first fixed plate fixed in the outer wall of welding torch, two balance bars are movably inserted on the first fixed plate, two the balance bar is jointly connected with the second fixed plate of movable adhesion outer wall of welding torch, the height of adjusting screw rod, connecting disc, lifting column is adjusted in the application by screwing, the bottom end of adjusting screw rod directly below the first fixed plate needs lower than the bottom end of adjusting screw rod directly below the second fixed plate, so that welding torch head part can be inclined downward and contact workpiece, hand-held welding torch and through the stable movement of gyro wheel welding workpiece welding position are welded, the contact pressure of welding torch and workpiece is fixed at this time, without manually adjusting gun strength.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a welding device for processing truck bodies. Background Technology

[0002] As the core structural component of a truck that carries goods, the cargo box is usually made up of multiple large steel plates that are welded together to form an integral structure during the manufacturing process. Because the splicing of large steel plates requires high welding strength, gas shielded welding torches are often used as the main welding device.

[0003] Some existing gas shielded welding torches are manually held and welded. During the welding process, the operator adjusts the torch pressure (i.e., the contact pressure between the torch and the surface of the workpiece). If the pressure is too low, the contact between the torch and the workpiece will be poor, resulting in a decrease in arc stability and insufficient bonding between the deposited metal and the base material. This leads to defects such as incomplete fusion and weak welds, affecting the weld strength. Therefore, precise control of the torch pressure requires a high level of professional skill from the operator and has significant limitations in its use. Utility Model Content

[0004] The purpose of this invention is to provide a welding device for processing truck bodies, so as to solve the problem mentioned in the background art that the pressure of the welding torch is difficult to control accurately during long-term welding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding device for processing truck bodies, comprising an operating table, a welding machine, and a stable welding assembly, wherein the stable welding assembly includes a support member and a weldable component. The welded component includes a welding torch and a rotating clamp plate rotatably mounted on the top of the welding torch; The support includes a first fixing plate fixed to the outer wall of the welding torch. Two balance bars are movably inserted through the first fixing plate. A second fixing plate that movably fits against the outer wall of the welding torch is connected to both the two balance bars. A vertical rod is rotatably installed at the bottom of both the first and second fixing plates. A sleeve is movably fitted on the outer wall of each vertical rod. Two protrusions are fixed to the outside of the sleeve. An adjusting screw and a lifting column are respectively inserted through the two protrusions. Two limiting blocks are fixed on the outer wall of the vertical rod. The height of the adjusting screw controls the downward movement space of the upright, so that the limiting block is tightly attached to the top of the adjusting screw to fix the contact pressure between the welding gun and the workpiece, eliminating the need to manually adjust the pressure of the welding gun.

[0006] Preferably, a connecting plate is fixed to the top of the second fixing plate, and the displacement of the second fixing plate is restricted by controlling the rotating clamp to rotate downward and fit tightly against the connecting plate.

[0007] Preferably, a connecting plate is fixed at the bottom of the lifting column, and the connecting plate is rotatably connected to the adjusting screw to form a whole, so that the lifting column moves up and down synchronously with the adjusting screw through the connecting plate.

[0008] Preferably, the bottom end of the sleeve is equipped with a roller for moving the welding torch.

[0009] Preferably, both the first fixing plate and the second fixing plate are arc-shaped plate structures, and both have an open top design.

[0010] Preferably, the connecting plate is fixed to the top of the second fixing plate, and is in close contact with the outer wall of the welding gun and seals the open opening at the top of the second fixing plate.

[0011] Preferably, a spring is provided in the sleeve located directly below the first fixing plate to push the upright rod upward.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Adjust the height of the adjusting screw, connecting plate, and lifting column by turning the adjusting screw. The bottom end of the adjusting screw directly below the first fixed plate should be lower than the bottom end of the adjusting screw directly below the second fixed plate so that the welding gun head can tilt downward and contact the workpiece. Then, hold the welding gun and move it smoothly with the roller to weld the workpiece. At this time, the contact pressure between the welding gun and the workpiece is fixed, and there is no need to manually adjust the pressure of the gun. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the stable welding assembly structure of this application; Figure 3 This is a schematic diagram of the support structure of this application; Figure 4 This is a schematic diagram of the welded component structure of this application.

[0014] In the diagram: 1. Operating table; 2. Welding machine; 3. Welding torch; 4. Rotating clamp; 5. First fixed plate; 6. Upright pole; 7. Sleeve; 8. Roller; 9. Protrusion; 10. Adjusting screw; 11. Connecting plate; 12. Lifting column; 13. Limiting block; 14. Second fixed plate; 15. Connecting plate; 16. Balance bar. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a welding device for processing truck bodies, including an operating table 1. The bottom of the operating table 1 is provided with several universal wheels with self-locking function for pushing the operating table 1 to move. The top of the operating table 1 is screwed with a welding machine 2. The welding machine 2 adopts a carbon dioxide gas shielded welding machine, which is more common in the prior art, and will not be described in detail here. The welding machine 2 is equipped with a stable welding component to stabilize the welding pressure. In the process of welding large-size steel plates of truck body floor, since the steel plate is on a plane and the position to be welded is on a plane, the stable welding component can be used for stable welding.

[0017] The stable welding assembly includes a support and a welding component. The welding component includes a welding torch 3, which is one of the components on the welding machine 2. A rotating clamp 4 is mounted on the top of the welding torch 3 via a hinge.

[0018] The support includes a first fixing plate 5 that is screwed to the outer wall of the welding torch 3. Two balance bars 16 are horizontally inserted on the first fixing plate 5. A second fixing plate 14 is welded to both balance bars 16. Both the first fixing plate 5 and the second fixing plate 14 are arc-shaped plate structures, and both have an open top design. A connecting plate 15 is fixed to the top of the second fixing plate 14, which is close to the outer wall of the welding torch 3 and seals the open top of the second fixing plate 14. By controlling the rotating clamp 4 to rotate downward and close to the connecting plate 15, the displacement of the second fixing plate 14 is restricted, which makes it convenient to adjust the position of the second fixing plate 14 according to the welding requirements during use.

[0019] Both the first fixed plate 5 and the second fixed plate 14 have uprights 6 mounted on their bottom ends via hinges. Sleeves 7 are movably fitted onto the outer walls of the uprights 6. Two protrusions 9 are fixed to the outer walls of each sleeve 7. Adjusting screws 10 and lifting columns 12 are respectively inserted into the two protrusions 9. A connecting plate 11 is welded to the bottom end of the lifting column 12. The connecting plate 11 and the adjusting screw 10 are rotatably connected as a whole via bearings, allowing the lifting column 12 to move synchronously up and down with the adjusting screw 10 via the connecting plate 11. Two limiting... Positioning blocks 13 and two limiting blocks 13 are respectively located directly above the adjusting screw 10 and the lifting column 12. By controlling the adjusting screw 10 to rotate downward, the length of the upright 6 that can be inserted into the sleeve 7 is adjusted. That is, by adjusting the height of the adjusting screw 10, the downward movement space of the upright 6 is controlled. Then, the welding gun 3 is pressed so that the limiting blocks 13 are in close contact with the top of the adjusting screw 10 as the upright 6 moves downward. At this time, the gun head of the welding gun 3 contacts the workpiece. At this time, the contact pressure between the welding gun 3 and the workpiece is fixed, and there is no need to manually adjust the pressure of the gun.

[0020] The bottom end of the sleeve 7 is equipped with a roller 8 for moving the welding torch 3, which facilitates the smooth movement of the sleeve 7 and the welding torch 3 on the surface of the workpiece.

[0021] A spring is installed in the sleeve 7 located directly below the first fixed plate 5 to push the upright rod 6 upward, so that after welding is completed, the worker can release the welding gun 3 and the spring will automatically push the welding gun 3 upward to detach it from the workpiece.

[0022] Working principle: When using, first turn the adjusting screw 10 to adjust the height of the adjusting screw 10, connecting plate 11, and lifting column 12. The adjusting screw 10 located directly below the first fixed plate 5 should be turned down to a greater depth than the adjusting screw 10 located directly below the second fixed plate 14. That is, the bottom end of the adjusting screw 10 located directly below the first fixed plate 5 should be lower than the bottom end of the adjusting screw 10 located directly below the second fixed plate 14, so that the nozzle of the welding gun 3 can tilt downward. Then, hold the welding gun 3 and drive the rotating clamp 4 to rotate downward and press it against the connecting plate 15. At this time, the positions of the second fixed plate 14 and the connecting plate 15 are fixed. Then, press the nozzle of the welding gun 3 so that it can tilt downward and contact the workpiece. Then, hold the welding gun 3 and move it smoothly through the roller 8 to weld the workpiece.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. For example, the welding described in the specific embodiments of the present invention is merely a connection method for keeping two structures fixed. Fixing by other methods such as riveting, interference fit, etc., is merely a variation of this embodiment. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing truck bodies, comprising an operating table, a welding machine, and a stable welding assembly, characterized in that: The stable welding assembly includes a support component and a welding component: The welded component includes a welding torch and a rotating clamp plate rotatably mounted on the top of the welding torch; The support includes a first fixing plate fixed to the outer wall of the welding torch. Two balance bars are movably inserted through the first fixing plate. A second fixing plate that movably fits against the outer wall of the welding torch is connected to both the two balance bars. A vertical rod is rotatably installed at the bottom of both the first and second fixing plates. A sleeve is movably fitted on the outer wall of each vertical rod. Two protrusions are fixed to the outside of the sleeve. An adjusting screw and a lifting column are respectively inserted through the two protrusions. Two limiting blocks are fixed on the outer wall of the vertical rod. The height of the adjusting screw controls the downward movement space of the upright, so that the limiting block is tightly attached to the top of the adjusting screw to fix the contact pressure between the welding gun and the workpiece, eliminating the need to manually adjust the pressure of the welding gun.

2. The welding device for processing freight car bodies according to claim 1, characterized in that: A connecting plate is fixed to the top of the second fixing plate. By controlling the rotating clamp to rotate downward and fit tightly against the connecting plate, the displacement of the second fixing plate is restricted.

3. The welding device for processing freight car bodies according to claim 1, characterized in that: The bottom end of the lifting column is fixed with a connecting plate, which is rotatably connected to the adjusting screw to form a whole, so that the lifting column moves up and down synchronously with the adjusting screw through the connecting plate.

4. The welding device for processing truck bodies according to claim 1, characterized in that: The bottom end of the sleeve is equipped with rollers for moving the welding torch.

5. The welding device for processing freight car bodies according to claim 1, characterized in that: Both the first fixing plate and the second fixing plate are curved plate structures, and both have an open top design.

6. The welding device for processing freight car bodies according to claim 2, characterized in that: The connecting plate is fixed to the top of the second fixing plate, and is in close contact with the outer wall of the welding gun, sealing the open opening at the top of the second fixing plate.

7. The welding device for processing freight car bodies according to claim 1, characterized in that: A spring is installed in the sleeve located directly below the first fixing plate to push the upright rod upward.

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