Tricycle frame welding tool

Abstract

The utility model relates to the technical field of tricycle frame welding, and discloses a tricycle frame welding tool which comprises a bottom plate, the top end of the bottom plate is connected with a second rotating disc through a supporting assembly, the top end of the second rotating disc is connected with a first cross beam through a supporting frame, and the left end and the right end of the first cross beam are both fixedly connected with vertical beams. Second cross beams are fixedly connected to the front sides and the rear sides of the adjacent ends of the two vertical beams correspondingly, second sliding rods are fixedly connected to the left sides and the right sides of the separated ends of the two second cross beams correspondingly, and second moving blocks are slidably connected to the outer walls of the multiple second sliding rods correspondingly. According to the three-wheel frame clamping device, the positions of the two-way lead screw and the first clamping plate can be adjusted by manually dragging the first moving block, then the two-way lead screw is driven by the first rotating rod to rotate, the second clamping plate moves on the first sliding rod to be close to the first clamping plate, stable clamping of three-wheel frames of different sizes is achieved, and the motor is started; the first cross beam, the vertical beam and the second cross beam which are connected with the second rotating disc are driven to rotate through transmission of the worm, the worm gear, the second rotating rod, the second rotating disc and other components.

Description

Technical Field

[0001] This utility model relates to the field of three-wheeled vehicle frame welding technology, and in particular to a three-wheeled vehicle frame welding fixture. Background Technology

[0002] In modern manufacturing, tricycles are widely used in logistics, short-distance passenger transport, and agricultural production, and their market demand continues to grow. The tricycle frame, as a key load-bearing component, plays a decisive role in the overall safety, stability, and durability of the vehicle. Welding is a core step in the manufacturing process of the tricycle frame, directly affecting its quality and performance.

[0003] Currently, traditional welding fixtures are usually designed for three-wheeled vehicle frames of specific sizes and models. When welding frames of different sizes, it is often necessary to change the fixture frequently. This process is not only time-consuming and labor-intensive, but also increases production costs. For example, when adjusting the clamping device, the existing fixture's clamping structure lacks flexibility and is difficult to adapt quickly and accurately to changes in the size of different frames, resulting in a significant reduction in production efficiency. Moreover, frequent changes in fixtures can easily cause wear and tear on the fixtures, further increasing the company's operating costs. In response to this technical problem, this application proposes a three-wheeled vehicle frame welding fixture. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welding fixture for a tricycle frame. By manually dragging the first moving block, the positions of the double-acting lead screw and the first clamping plate can be adjusted. Then, the first rotating rod drives the double-acting lead screw to rotate, causing the second clamping plate to move closer to the first clamping plate on the first sliding rod, thereby achieving stable clamping of tricycle frames of different sizes. When the motor is started, the worm gear, worm wheel, second rotating rod, and second turntable drive the first crossbeam, the vertical beam, and the second crossbeam connected to the second turntable to rotate through the transmission of components such as the worm gear, worm wheel, second rotating rod, and second turntable.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A welding fixture for a three-wheeled vehicle frame includes a base plate. A turntable is connected to the top of the base plate via a support assembly. The top of the turntable is connected to a crossbeam via a support frame. Vertical beams are fixedly connected to both ends of the crossbeam. Crossbeams are fixedly connected to the front and rear sides of adjacent ends of the two vertical beams. Sliding rods are fixedly connected to the left and right sides of the ends of the two crossbeams. Moving blocks are slidably connected to the outer walls of multiple sliding rods. Connecting rods are rotatably connected to the inner walls of multiple moving blocks. A double-acting screw is fixedly connected to the near ends of the two connecting rods on the left side. Clamping plates are rotatably connected to the outer walls of the two connecting rods on the left side. The two clamping plates on the left side are connected via a guide assembly. Clamping plates are connected to the front and rear sides of the outer walls of the double-acting screw on the left side via threaded sleeves, and the two clamping plates on the left side are slidably connected to the outer walls of the sliding rods. A protective box is fixedly connected to the top of the base plate. The inner wall of the protective box is connected to the turntable via a rotating assembly. A driving component is mounted on the front end of the protective box via a fixed frame.

[0007] Furthermore, the rotating assembly includes a worm gear located on the inner wall of the protective box, the worm gear being rotatably connected to the inner wall of the protective box, a worm wheel being meshed with the left end of the protective box, a rotating rod two being fixedly connected to the inner wall of the worm wheel, the rotating rod two being rotatably connected to the inner wall of the protective box, the rotating rod two being fixedly connected to the bottom end of the turntable two, and the rotating rod two being rotatably connected to the inner wall of the turntable one.

[0008] Furthermore, a motor is mounted on the front end of the protective box via a fixing frame, and the motor drive end is fixedly connected to the front end of the worm gear.

[0009] Furthermore, the support assembly includes a support plate located at the top of the base plate, and a turntable is fixedly connected to the top of the support plate. The turntable is rotatably connected to the bottom of the turntable.

[0010] Furthermore, a movable block is rotatably connected to the outer wall of the bidirectional lead screw on the left side, and the movable block is slidably connected to the top of the crossbeam.

[0011] Furthermore, the guide assembly includes a slide rod located at one end of one of the two left-side clamps, and a connecting block is fixedly connected to one end of each of the two left-side slide rods. The connecting block is slidably connected to the inner wall of the crossbeam.

[0012] Furthermore, the structure in which the two movable blocks on the left are connected is the same as the structure in which the two movable blocks on the right are connected.

[0013] Furthermore, a rotating rod is fixedly connected to the outer wall of each of the connecting rods on the front side.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by manually dragging the first moving block, the position of the double-acting lead screw and the first clamping plate can be adjusted to initially adapt to the frame size. Then, the first rotating rod drives the double-acting lead screw to rotate, so that the second clamping plate moves on the first sliding rod and approaches the first clamping plate, thereby achieving stable clamping of three-wheeled frames of different lengths, widths and other sizes. This improves the versatility of the tooling, eliminates the need to frequently change tooling for different frame sizes, and saves production costs and time costs.

[0016] 2. In this utility model, starting the motor drives the crossbeam 1, vertical beam and crossbeam 2 connected to the turntable 2 to rotate through the transmission of components such as worm gear, worm wheel, rotating rod 2 and turntable 2. This allows the clamped tricycle to rotate smoothly to a suitable welding position. The welder does not need to move and can operate in place to weld the other side of the tricycle. This significantly improves welding efficiency, ensures the stability of welding quality, and also enhances the safety of the working environment. Attached Figure Description

[0017] Figure 1 This is a perspective view of a welding fixture for a three-wheeled vehicle frame proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the turntable structure of a welding fixture for a three-wheeled vehicle frame proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of a bidirectional lead screw structure for a welding fixture for a three-wheeled vehicle frame proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the worm gear structure of a welding fixture for a three-wheeled vehicle frame proposed in this utility model.

[0021] Legend:

[0022] 1. Base plate; 2. Support plate; 3. Turntable 1; 4. Turntable 2; 5. Rotating rod 1; 6. Connecting block; 7. Support frame; 8. Slide rod 1; 9. Moving block 1; 10. Protective box; 11. Motor; 12. Worm gear; 13. Worm wheel; 14. Rotating rod 2; 15. Crossbeam 1; 16. Vertical beam; 17. Crossbeam 2; 18. Slide rod 2; 19. Moving block 2; 20. Connecting rod; 21. Clamping plate 1; 22. Double-acting screw; 23. Clamping plate 2. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a welding fixture for a three-wheeled vehicle frame, comprising a base plate 1. A second turntable 4 is connected to the top of the base plate 1 via a support plate 2 and a turntable 3. The top of the second turntable 4 is connected to a first crossbeam 15 via a support frame 7. Vertical beams 16 are fixedly connected to both ends of the first crossbeam 15. Second crossbeams 17 are fixedly connected to the front and rear sides of adjacent ends of the two vertical beams 16. Sliding rods 18 are fixedly connected to the left and right sides of the ends of the two second crossbeams 17 that are separated from each other. Moving blocks 19 are slidably connected to the outer walls of multiple sliding rods 18, and connecting rods are rotatably connected to the inner walls of multiple moving blocks 19. 20. Two connecting rods 20 on the left side are fixedly connected to one end of a double-acting screw 22. The outer walls of the two connecting rods 20 on the left side are rotatably connected to clamps 21. The two clamps 21 on the left side are connected to the connecting block 6 through a slide rod 8. The front and rear sides of the outer wall of the double-acting screw 22 on the left side are connected to clamps 23 through threaded sleeves. The two clamps 23 on the left side are slidably connected to the outer wall of the slide rod 8. The top of the base plate 1 is fixedly connected to a protective box 10. The inner wall of the protective box 10 is connected to the turntable 4 through a worm gear 12, a worm wheel 13 and a rotating rod 14. The front end of the protective box 10 is equipped with a driving component through a fixed frame.

[0025] Specifically, the operator rotates the rotating rod 5. Since the rotating rod 5 is fixedly connected to the outer wall of the connecting rod 20, its rotation will cause the connecting rod 20 to rotate. Because a double-ended lead screw 22 is fixedly connected to one end of the connecting rod 20, its rotation will cause the lead screw 22 to rotate. The outer walls of the double-ended lead screw 22 are connected to clamping plates 23 via threaded sleeves on both sides. Clamping plates 23 are also slidably connected to the outer wall of the sliding rod 8. When the double-ended lead screw 22 rotates, according to the transmission principle of the thread, clamping plates 23 will move closer to clamping plates 21 along the sliding rod 8, thus achieving stable clamping and fixing of tricycle frames of different sizes, preparing for subsequent welding work. When welding is completed on one side of the tricycle frame and welding is required on the other side, the operator starts the motor 11 mounted on the front fixed frame of the protective box 10. The drive end of the motor 11 is fixedly connected to the front end of the worm gear 12. After the motor 11 starts, it drives the worm gear 12 to rotate. The worm gear 12 is rotatably connected to the inner wall of the protective box 10 and meshes with the worm wheel 13. When the worm gear 12 rotates, it drives the worm wheel 13 to rotate. The inner wall of the worm wheel 13 is fixedly connected to the rotating rod 14. The rotating rod 14 is rotatably connected to the inner wall of the protective box 10 and is also fixedly connected to the bottom end of the turntable 4 and rotatably connected to the inner wall of the turntable 3. Therefore, the rotation of the worm wheel 13 will drive the rotating rod 14 to rotate, which in turn drives the turntable 4 to rotate.

[0026] Reference Figures 2-4The protective box 10 has a worm gear 12 located on its inner wall, which is rotatably connected to the inner wall of the protective box 10. A worm wheel 13 is meshed with the left end of the protective box 10. A rotating rod 14 is fixedly connected to the inner wall of the worm wheel 13, and is rotatably connected to the inner wall of the protective box 10. The rotating rod 14 is fixedly connected to the bottom end of a turntable 4, and is rotatably connected to the inner wall of a turntable 3. A motor 11 is mounted on the front end of the protective box 10 via a mounting bracket. The drive end of the motor 11 is fixedly connected to the front end of the worm gear 12. A support plate 2 is located at the top of the base plate 1. Turntable 1 3 is fixedly connected, and turntable 1 3 is rotatably connected to the bottom end of turntable 2 4. A moving block 1 9 is rotatably connected to the outer wall of the left bidirectional screw 22. The left moving block 1 9 is slidably connected to the top of the crossbeam 15. The sliding rod 1 8 is located at the end of the two left clamps 21 that are close to each other. The two left sliding rods 1 8 are fixedly connected to the end of the two left sliding rods 1 8 that are close to each other. The connecting block 6 is slidably connected to the inner wall of the crossbeam 15. The structure of the two left moving blocks 2 19 connected together is the same as the structure of the two right moving blocks 2 19 connected together. The outer wall of the front connecting rod 20 is fixedly connected to the rotating rod 1 5.

[0027] Specifically, the operator manually drags the movable block 9, which slides on the top of the crossbeam 15. During this process, the movable block 9 drives the bidirectional lead screw 22, which is rotatably connected to it, and the clamping plate 21, which is rotatably connected to the outer wall of the bidirectional lead screw 22, to move together. In this way, the bidirectional lead screw 22 and the clamping plate 21 are adjusted to a position that matches the size of the tricycle frame to be welded. The support plate 2 connects the base plate 1 and the turntable 3, and plays the role of supporting the turntable 3, so that the turntable 3 can be stably installed on the base plate 1, ensuring the stability of the turntable 3 during rotation and preventing the turntable 3 from shaking due to unstable support, which would affect the normal operation of the entire fixture. The turntable 3 is rotatably connected to the bottom of the turntable 4, providing rotational support for the turntable 4. It reduces the friction between the turntable 4 and other parts when the turntable 4 rotates, allowing the turntable 4 to rotate more smoothly.

[0028] Working principle: After dragging the moving block 19 to adjust the clamping plate 121 and the double-acting screw 22 to the appropriate position, the tricycle frame to be welded is placed on the crossbeam 15. Rotating the rotating rod 15 drives the double-acting screw 22 to rotate through the connecting rod 20, thereby driving the clamping plate 23 to move closer to the clamping plate 21, thus clamping and fixing tricycle frames of different sizes. Then the tricycle can be welded. During the welding process, when welding is required on the other side, the motor 11 is started to drive the worm gear 12 to rotate. When the worm gear 12 rotates, it drives the worm wheel 13 to rotate, which in turn drives the turntable 24 to rotate through the rotating rod 24. When the turntable 24 rotates, the crossbeam 15 is fixed by the support frame 7, which drives the crossbeam 15, the vertical beam 16 and the crossbeam 27 to rotate simultaneously, thus enabling the clamped tricycle to rotate.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a tricycle frame, characterized in that: The base plate (1) is connected to a turntable (4) at its top via a support assembly. The turntable (4) is connected to a crossbeam (15) at its top via a support frame (7). A vertical beam (16) is fixedly connected to both ends of the crossbeam (15). A crossbeam (17) is fixedly connected to the front and rear sides of the adjacent ends of the two vertical beams (16). A sliding rod (18) is fixedly connected to the left and right sides of the two crossbeams (17) at their opposite ends. A moving block (19) is slidably connected to the outer wall of the multiple sliding rods (18). A connecting rod (20) is rotatably connected to the inner wall of the multiple moving blocks (19). The two left sides are connected to the crossbeams (18). One end of each connecting rod (20) is fixedly connected to a bidirectional lead screw (22). The outer walls of the two connecting rods (20) on the left are rotatably connected to a clamping plate (21). The two clamping plates (21) on the left are connected by a guide assembly. The outer walls of the bidirectional lead screw (22) on the left are connected to clamping plates (23) on both the front and rear sides by threaded sleeves. The two clamping plates (23) on the left are slidably connected to the outer wall of the sliding rod (8). The top of the base plate (1) is fixedly connected to a protective box (10). The inner wall of the protective box (10) is connected to the turntable (4) by a rotating assembly. The front end of the protective box (10) is equipped with a driving component by a fixed frame.

2. The welding fixture for a three-wheeled vehicle frame according to claim 1, characterized in that: The rotating assembly includes a worm gear (12) located on the inner wall of the protective box (10). The worm gear (12) is rotatably connected to the inner wall of the protective box (10). A worm wheel (13) is meshed with the left end of the protective box (10). A rotating rod (14) is fixedly connected to the inner wall of the worm wheel (13). The rotating rod (14) is rotatably connected to the inner wall of the protective box (10). The rotating rod (14) is fixedly connected to the bottom end of the turntable (4). The rotating rod (14) is rotatably connected to the inner wall of the turntable (3).

3. The welding fixture for a tricycle frame according to claim 1, characterized in that: The protective box (10) has a motor (11) mounted on its front end via a fixing frame, and the drive end of the motor (11) is fixedly connected to the front end of the worm (12).

4. The welding fixture for a tricycle frame according to claim 1, characterized in that: The support assembly includes a support plate (2) located at the top of the base plate (1), and a turntable (3) is fixedly connected to the top of the support plate (2). The turntable (3) is rotatably connected to the bottom of the turntable (4).

5. The welding fixture for a tricycle frame according to claim 1, characterized in that: The outer wall of the bidirectional lead screw (22) on the left side is rotatably connected to a moving block (9), which is slidably connected to the top of the crossbeam (15).

6. The welding fixture for a tricycle frame according to claim 1, characterized in that: The guide assembly includes a slide rod (8) located at one end of the two left side clamps (21) near each other. A connecting block (6) is fixedly connected to one end of each of the two left side slide rods (8) near each other. The connecting block (6) is slidably connected to the inner wall of the crossbeam (15).

7. The welding fixture for a tricycle frame according to claim 1, characterized in that: The structure in which the two movable blocks (19) on the left are connected is the same as the structure in which the two movable blocks (19) on the right are connected.

8. The welding fixture for a tricycle frame according to claim 1, characterized in that: The outer wall of the connecting rod (20) on the front side is fixedly connected with a rotating rod (5).

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