An auxiliary welding tool for automobile parts

Abstract

The utility model relates to an automobile part auxiliary welding tool, belong to the technical field of welding equipment, including work bench, three -jaw chuck, translation slide rail, translation slide plate, lifting frame, lifting slide rail, mounting sliding block, welding torch, adjusting slide plate, height adjusting mechanism, adjusting slide plate is fixed with lifting cylinder, translation slide plate is connected with translation cylinder, and translation cylinder is connected with the horizontal adjusting mechanism that adjusts its horizontal initial position. The utility modelThe utility model sets up translation slide rail, translation slide plate, translation cylinder and horizontal adjusting mechanism, can realize the flexible adjustment of welding torch horizontal direction, including accurate setting of initial position and quick movement in the welding process, adapts to the welding demand of different horizontal positions, with the help of lifting frame, lifting slide rail, lifting cylinder and height adjusting mechanism, can adjust welding torch in the up and down direction, satisfies the requirement of different height welding position, improves the versatility of tooling, improves welding efficiency.

Description

Technical Field

[0001] This utility model relates to an auxiliary welding fixture for automotive parts, belonging to the technical field of welding equipment. Background Technology

[0002] Automotive flange welding primarily involves securely connecting flanges to pipes to form a unified structure. Good welding quality ensures the strength and sealing of the connection, allowing the entire system to operate stably under pressure and temperature variations, preventing leaks, breakages, and other safety accidents, and guaranteeing the continuity and safety of industrial production. In automobile manufacturing, the quality of flange welding directly affects the vehicle's performance and safety. For example, flange welding in exhaust systems needs to withstand high temperatures and vibrations, while flange welding in transmission systems needs to withstand high torque and impact forces.

[0003] Currently, welding automotive flanges typically requires manual operation with a handheld welding torch, or the use of simple auxiliary devices to secure the flange and torch. However, existing auxiliary welding devices have some shortcomings. Firstly, the initial position of the welding torch is difficult to adjust precisely, resulting in significant time spent adjusting the torch position when welding flanges of different sizes, thus affecting welding efficiency. Secondly, the process of the welding torch approaching the welding position is relatively slow, making rapid positioning impossible. Utility Model Content

[0004] This utility model provides an auxiliary welding fixture for automotive parts, which solves the problems mentioned in the background art.

[0005] This utility model relates to an auxiliary welding fixture for automotive parts, including a worktable, on which a three-jaw chuck is rotatably mounted. A horizontal translation slide rail is provided next to the three-jaw chuck, and a translation slide plate is provided on the translation slide rail. A lifting frame is fixed to the top of the translation slide plate, and a lifting slide rail is provided on the lifting frame. A mounting slider is provided on the lifting slide rail, and an inclined welding torch is mounted on the mounting slider. An adjusting slide plate is provided on the lifting slide rail, and a height adjustment mechanism for adjusting its initial height is connected to the adjusting slide plate. A lifting cylinder is fixed to the adjusting slide plate, and the lower end of the lifting cylinder is connected to the mounting slider. A translation cylinder is connected to the translation slide plate, and a horizontal adjustment mechanism for adjusting its initial horizontal position is connected to the translation cylinder.

[0006] As a preferred embodiment, the height adjustment mechanism includes an adjusting screw rotatably mounted on the lifting frame and parallel to the lifting slide rail. An adjusting nut is mounted on the adjusting screw, and a lifting slider is mounted on the lifting slide rail. The adjusting nut and the lifting slider are fixed together. By rotating the adjusting screw, the adjusting nut and the lifting slider move, achieving precise adjustment of the initial height of the adjustable slide. This method is simple to operate and offers high adjustment accuracy, solving the problem of cumbersome traditional height adjustment.

[0007] As a preferred embodiment, a mounting plate is fixed to the mounting slider. The lower end of the lifting cylinder is hinged to the mounting plate. A rotating seat is threaded onto the lower outer side of the mounting plate. A connecting arm with an adjustable angle is fixed to the rotating seat by bolts. A fixing block is fixed to the outer end of the connecting arm, and a pressure plate for clamping the welding torch is fixed to the fixing block by bolts. The cooperation between the rotating seat and the connecting arm enables the rotational adjustment of the welding torch angle, which can adapt to welding requirements with different tilt angles and overcome the limitations of traditional fixed welding torch angles. The cooperation between the pressure plate and the fixing block can firmly clamp the welding torch, ensuring the stability of the welding torch during the welding process.

[0008] As a preferred embodiment, the fixing block has a semi-circular mounting groove that mates with the outer wall of the welding torch, and the pressure plate has a semi-circular pressing groove that mates with the mounting groove. The fit between the semi-circular mounting groove and the pressing groove allows for a tight fit with the outer wall of the welding torch, enhancing the clamping effect on the welding torch, preventing the welding torch from shifting during welding, and improving welding accuracy.

[0009] As a preferred embodiment, the leveling mechanism includes a movable slide plate positioned below the translation cylinder. A support plate is fixed to the bottom of the translation cylinder, and the bottom of the support plate is fixed to the movable slide plate. The support plate has an adjustment hole, and an adjustment screw is installed inside the adjustment hole. A fixing plate is fixed to the outer end of the adjustment screw, and the bottom of the fixing plate is fixed to the worktable. Locking nuts are provided on the adjustment screws on both sides of the support plate. By loosening the locking nuts, the movable slide plate is moved along the adjustment screws, which can precisely adjust the initial horizontal position of the translation cylinder. After adjustment, tightening the locking nuts will fix the position. This method is convenient to operate, provides reliable positioning, and improves the flexibility of adjusting the initial horizontal position.

[0010] As a preferred embodiment, a square support column parallel to the three-jaw chuck is provided. A support sleeve is mounted on the support column, and a fixing bolt is installed on the support sleeve. A connecting rod is fixed to the support sleeve, and a bushing is fixed to the bottom of the other end of the connecting rod. A rotating shaft coaxial with the three-jaw chuck is rotatably mounted on the bushing. A threaded sleeve is fixed to the bottom of the rotating shaft, and a pressure plate is threadedly connected to the bottom of the threaded sleeve. Multiple pressure plates are provided, each with a different outer diameter. The three-jaw chuck and the pressure plates work together to provide double clamping of the components radially and axially, effectively preventing axial wobble during welding. The multiple pressure plates with different outer diameters can be flexibly replaced according to the specifications of the pipe fittings, enhancing the adaptability of the tooling to different components. The height of the support sleeve is adjustable to accommodate the clamping requirements of pipe fittings of different lengths.

[0011] As a preferred option, the workbench is equipped with a device box at the bottom, and the device box is equipped with casters at the bottom. The casters allow the tooling to move flexibly and easily between different work sites, solving the problem of inconvenient movement of traditional tooling that is fixed in one position.

[0012] As a preferred embodiment, a sliding sleeve is fixed to one outer wall of the equipment box, and a locking bolt is provided on the sliding sleeve. A U-shaped pusher is provided next to the worktable, and vertical sections extending into the sliding sleeve are fixed at both ends of the pusher. By adjusting the position of the vertical sections of the pusher inside the sliding sleeve and fixing them with the locking bolt, the height of the pusher can be adjusted according to the height of the operator, improving the comfort and convenience when pushing the tooling.

[0013] This utility model has the following beneficial effects: This invention, by setting up a translation slide rail, a translation slide plate, a translation cylinder, and a horizontal adjustment mechanism, enables flexible horizontal adjustment of the welding torch, including precise setting of the initial position and rapid movement during the welding process, adapting to welding needs at different horizontal positions. With the help of the lifting frame, lifting slide rail, lifting cylinder, and height adjustment mechanism, the welding torch can be adjusted vertically to meet the requirements of welding positions at different heights, improving the versatility of the tooling and increasing welding efficiency. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. disclosed in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Partial structural diagram; Figure 3 This is a schematic diagram of the top structure of the pressure plate; In the diagram: 1. Workbench; 2. Translation slide rail; 3. Push handle; 4. Three-jaw chuck; 5. Adjusting screw; 6. Translation cylinder; 7. Moving slide plate; 8. Translation slide plate; 9. Lifting frame; 10. Lifting slide rail; 11. Adjusting nut; 12. Adjusting screw; 13. Lifting cylinder; 14. Adjusting slide plate; 15. Mounting base plate; 16. Rotating base; 17. Pressure plate; 18. Fixing block; 19. Support column; 20. Pressure plate; 21. Connecting rod; 22. Threaded sleeve; 23. Support sleeve; 24. Sliding sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0018] Example 1, as Figures 1 to 3 As shown, this utility model is an auxiliary welding fixture for automotive parts, including a worktable 1, a three-jaw chuck 4 rotatably mounted on the worktable 1, a horizontal translation slide rail 2 provided next to the three-jaw chuck 4, a translation slide plate 8 provided on the translation slide rail 2, a lifting frame 9 fixed to the top of the translation slide plate 8, a lifting slide rail 10 provided on the lifting frame 9, a mounting slider provided on the lifting slide rail 10, an inclined welding gun mounted on the mounting slider, an adjusting slide plate 14 provided on the lifting slide rail 10, a height adjusting mechanism connected to the adjusting slide plate 14 to adjust its initial height, a lifting cylinder 13 fixed to the adjusting slide plate 14, the lower end of the lifting cylinder 13 connected to the mounting slider, a translation cylinder 6 connected to the translation slide plate 8, and a horizontal adjusting mechanism connected to the translation cylinder 6 to adjust its initial horizontal position.

[0019] In use, the flange is placed on the three-jaw chuck 4, and the bottom of the flange is positioned and clamped by the bottom surface of the jaws of the three-jaw chuck 4. Then, the pipe is placed in the inner hole of the flange, and the jaws position the bottom of the flange. The lifting cylinder 13 and the translation cylinder 6 extend. Then, the position of the welding torch is adjusted by the height adjustment mechanism and the level adjustment mechanism so that the lower end of the welding torch is facing the welding joint between the flange and the pipe. Then, the lifting cylinder 13 and the translation cylinder 6 retract. During the welding process, the translation cylinder 6 drives the translation slide plate 8 to move along the translation slide rail 2, which drives the welding torch to move horizontally. The lifting cylinder 13 drives the mounting slider to move along the lifting slide rail 10, which drives the welding torch to move up and down, so that the welding torch can be quickly moved to the welding position. At the same time, the three-jaw chuck 4 can rotate, which drives the flange to rotate, and works with the welding torch to complete the welding of the circumferential weld. After welding is completed, the three-jaw chuck 4 stops rotating, the lifting cylinder 13 and the translation cylinder 6 retract, the three-jaw chuck 4 releases the flange, removes the welded flange and pipe, and then installs and clamps the next flange and pipe to be welded. The lifting cylinder 13 and the translation cylinder 6 extend and quickly move to the welding position for welding.

[0020] In Example 2, based on Example 1, the height adjustment mechanism includes an adjusting screw 12 rotatably mounted on the lifting frame 9 and parallel to the lifting slide rail 10. An adjusting nut 11 is provided on the adjusting screw 12, and a rotating handwheel is fixed to the top of the adjusting screw 12. A lifting slider is provided on the lifting slide rail 10, and the adjusting nut 11 is fixed to the lifting slider. When adjusting the initial height position of the welding torch, the rotating handwheel can be rotated, causing the adjusting screw 12 to rotate, thereby adjusting the height of the adjusting slide plate 14.

[0021] A mounting plate 15 is fixed to the mounting slider. The lower end of the lifting cylinder 13 is hinged to the mounting plate 15. A rotating seat 16 is threadedly fixed to the lower outer side of the mounting plate 15. A connecting arm that can be rotated and adjusted is fixed to the rotating seat 16 by bolts. A fixing block 18 is fixed to the outer end of the connecting arm. A pressure plate 17 for pressing the welding gun is fixed to the fixing block 18 by bolts. Before operation, the bolts on the rotating seat 16 can be loosened as needed, and then the connecting arm can be rotated to adjust the tilt angle of the welding gun.

[0022] The fixing block 18 has a semi-circular mounting groove that mates with the outer wall of the welding torch, and the pressure plate 17 has a semi-circular pressure groove that mates with the mounting groove. Anti-slip rubber pads are provided inside the mounting groove and the pressure groove.

[0023] The horizontal adjustment mechanism includes a movable slide plate 7 positioned below the translation cylinder 6. A support plate is fixed to the bottom of the translation cylinder 6, and the bottom of the support plate is fixed to the movable slide plate 7. The support plate has an adjustment hole, and an adjustment screw 5 is installed inside the adjustment hole. A fixing plate is fixed to the outer end of the adjustment screw 5, and the bottom of the fixing plate is fixed to the worktable 1. Locking nuts are provided on the adjustment screws 5 on both sides of the support plate. The initial position of the translation cylinder 6 can be adjusted by rotating the locking nuts on the left and right sides of the support plate on the adjustment screws 5.

[0024] A square support column 19 parallel to the three-jaw chuck 4 is provided. A support sleeve 23 is provided on the support column 19, and a fixing bolt is provided on the support sleeve 23. A connecting rod 21 is fixed to the support sleeve 23, and a bushing is fixed to the bottom of the other end of the connecting rod 21. A rotating shaft coaxial with the three-jaw chuck 4 is rotatably mounted on the bushing. A threaded sleeve 22 is fixed to the bottom of the rotating shaft, and a pressure plate 20 is threadedly connected to the bottom of the threaded sleeve 22. Multiple pressure plates 20 are provided, each with a different outer diameter. Before operation, according to the specifications of the automotive flange and pipe to be welded, a suitable pressure plate 20 is selected and threaded into the threaded sleeve 22. After the pipe fitting is placed inside the flange, the height of the support sleeve 23 on the support column 19 is adjusted so that the pressure plate 20 presses against the upper surface of the pipe, tightening the pipe. A rotary motor is fixed to the bottom of the rotating shaft of the three-jaw chuck 4.

[0025] The bottom of the workbench 1 is equipped with an equipment box, and the bottom of the equipment box is equipped with casters. The rotary motor is installed inside the equipment box.

[0026] A sliding sleeve 24 is fixed to one outer wall of the equipment box, and a locking bolt is provided on the sliding sleeve 24. A U-shaped pusher 3 is provided next to the worktable 1, and vertical sections extending into the sliding sleeve 24 are fixed at both ends of the pusher 3. When it is necessary to move the tooling, adjust the height of the pusher 3 to a suitable position, push the pusher 3, and use the traveling wheels at the bottom of the equipment box to move the tooling to the required position.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0028] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An auxiliary welding fixture for automotive parts, comprising a worktable (1), on which a three-jaw chuck (4) is rotatably mounted, characterized in that: A horizontal translation slide rail (2) is provided next to the three-jaw chuck (4). A translation slide plate (8) is provided on the translation slide rail (2). A lifting frame (9) is fixed on the top of the translation slide plate (8). A lifting slide rail (10) is provided on the lifting frame (9). An installation slider is provided on the lifting slide rail (10). An inclined welding gun is installed on the installation slider. An adjustment slide plate (14) is provided on the lifting slide rail (10). A height adjustment mechanism for adjusting its initial height is connected to the adjustment slide plate (14). A lifting cylinder (13) is fixed on the adjustment slide plate (14). The lower end of the lifting cylinder (13) is connected to the installation slider. A translation cylinder (6) is connected to the translation slide plate (8). A horizontal adjustment mechanism for adjusting its initial horizontal position is connected to the translation cylinder (6).

2. The auxiliary welding fixture for automotive parts according to claim 1, characterized in that: The height adjustment mechanism includes an adjusting screw (12) that is rotatably mounted on the lifting frame (9) and parallel to the lifting slide rail (10). The adjusting screw (12) is provided with an adjusting nut (11), and the lifting slide rail (10) is provided with a lifting slider. The adjusting nut (11) is fixed to the lifting slider.

3. The auxiliary welding fixture for automotive parts according to claim 1, characterized in that: Mounting plate (15) is fixed on mounting slider. The lower end of lifting cylinder (13) is hinged to mounting plate (15). Rotary seat (16) is threaded on the lower outer side of mounting plate (15). A connecting arm that can rotate and adjust angle is fixed on rotating seat (16) by bolts. A fixing block (18) is fixed on the outer end of connecting arm. A pressure plate (17) for pressing welding gun is fixed on fixing block (18) by bolts.

4. The auxiliary welding fixture for automotive parts according to claim 3, characterized in that: The fixing block (18) is provided with a semi-circular mounting groove that mates with the outer wall of the welding torch, and the pressure plate (17) is provided with a semi-circular pressure groove that mates with the mounting groove.

5. The auxiliary welding fixture for automotive parts according to claim 1, characterized in that: The horizontal adjustment mechanism includes a movable slide plate (7) located below the translation cylinder (6). A support plate is fixed to the bottom of the translation cylinder (6). The bottom of the support plate is fixed to the movable slide plate (7). An adjustment hole is provided on the support plate. An adjustment screw (5) is provided in the adjustment hole. A fixing plate is fixed to the outer end of the adjustment screw (5). The bottom of the fixing plate is fixed to the worktable (1). Locking nuts are provided on the adjustment screws (5) on both sides of the support plate.

6. The auxiliary welding fixture for automotive parts according to claim 1, characterized in that: A square support column (19) parallel to the three-jaw chuck (4) is provided next to it. A support sleeve (23) is provided on the support column (19). A fixing bolt is provided on the support sleeve (23). A connecting rod (21) is fixed on the support sleeve (23). A bushing is fixed at the bottom of the other end of the connecting rod (21). A rotating shaft coaxial with the three-jaw chuck (4) is rotatably installed on the bushing. A threaded sleeve (22) is fixed at the bottom of the rotating shaft. A pressure plate (20) is threadedly connected to the bottom of the threaded sleeve (22). There are multiple pressure plates (20), and the outer diameter of each pressure plate (20) is not equal.

7. The auxiliary welding fixture for automotive parts according to claim 1, characterized in that: The bottom of the workbench (1) is equipped with an equipment box, and the bottom of the equipment box is equipped with wheels.

8. The auxiliary welding fixture for automotive parts according to claim 7, characterized in that: A sliding sleeve (24) is fixed on one side of the outer wall of the equipment box. A locking bolt is provided on the sliding sleeve (24). A U-shaped pusher (3) is provided on one side of the workbench (1). Vertical sections extending into the sliding sleeve (24) are fixed at both ends of the pusher (3).

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