Auxiliary positioning device for automobile maintenance welding

By designing an automotive repair welding auxiliary positioning device with clamping plates and ratchet limiting components, the problem of cumbersome part position replacement in existing technologies has been solved, achieving efficient and precise welding positioning and improving welding quality and efficiency.

CN223997683UActive Publication Date: 2026-03-17CHENGDU JIEXINGXING TECHNOLOGY SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing automotive repair welding positioning devices are cumbersome to operate when changing welding positions, making it difficult to ensure positional consistency and resulting in decreased welding accuracy.

Method used

An auxiliary positioning device was designed, which realizes the unidirectional rotation of the part through a limiting assembly composed of a clamping plate and a ratchet, adjusts the clamping distance with a lead screw and a threaded sleeve, and uses a motor to drive a turntable and a connecting rod to achieve stable movement and positioning of the part.

Benefits of technology

It improves welding efficiency and precision, reduces the steps required for part repositioning, and ensures the consistency and adaptability of welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile maintenance and welding, and discloses an auxiliary positioning device for automobile maintenance and welding, which comprises an operating platform, the bottom end of the operating platform is rotatably connected with a turntable, the top end of the turntable is connected with a moving frame through a connecting rod, and one end of the moving frame is rotatably connected to the top end of the turntable. The other end of the moving frame is rotationally connected to the bottom end of the moving frame, a rotating rod is rotationally connected to the inner wall of the moving frame, a first clamping plate is fixedly connected to the adjacent end of the rotating rod, and a second clamping plate is connected to the inner wall of the first clamping plate through an elastic assembly. In the welding process, the second clamping plate is rotated, the second clamping plate drives the first clamping plate, the rotating rod and the ratchet wheel to rotate, a part is driven to rotate to a proper angle, the other side of the part is welded, the first clamping plate and the second clamping plate are connected through the lead screw, and when the rotary knob is rotated, the second clamping plate can be driven to move through the lead screw under the action of the threaded sleeve.
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Description

Technical Field

[0001] This utility model relates to the field of automotive repair welding technology, and in particular to an auxiliary positioning device for automotive repair welding. Background Technology

[0002] In the field of automotive repair, welding between automotive parts is a critical and frequent operation. During the use of a car, many parts will be damaged due to collisions, aging and other reasons. Welding is an important means of repair, and its quality directly affects the subsequent performance and safety of the car. Repair personnel need to accurately weld parts of various shapes and sizes to ensure that the repaired car can be restored to normal operation and meet the standards for safe driving.

[0003] Currently, existing technologies for positioning equipment in automotive repair welding have many limitations. After welding one side of a part, if welding is to be performed on the other side, the part usually needs to be removed from the positioning device, the angle readjusted, and then fixed. This process is not only cumbersome and time-consuming, but also makes it difficult to ensure that the position of the part is completely consistent with the previous position during the repositioning process, which can easily lead to a decrease in welding accuracy, welding deviation, and affect welding quality. In order to address this technical problem, this application proposes an auxiliary positioning device for automotive repair welding. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary positioning device for automotive repair welding. During the welding process, rotating clamp plate two causes clamp plate one, the rotating rod, and the ratchet to rotate, thereby rotating the part to a suitable angle for welding on the other side. Clamp plate one and clamp plate two are connected by a screw rod. When the knob is turned, under the action of the threaded sleeve, clamp plate two can be moved by the screw rod.

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

[0006] An auxiliary positioning device for automotive repair welding includes an operating table. A turntable is rotatably connected to the bottom of the operating table. A movable frame is connected to the top of the turntable via a connecting rod. One end of the movable frame is rotatably connected to the top of the turntable, and the other end of the movable frame is rotatably connected to the bottom of the movable frame. A rotating rod is rotatably connected to the inner wall of the movable frame. A clamping plate is fixedly connected to one adjacent end of the rotating rod. A clamping plate is connected to the inner wall of the clamping plate one via a movable component. A ratchet is fixedly connected to one opposite end of the rotating rod. A limit component is provided at one opposite end of the movable frame. A driving component is mounted on the bottom of the operating table via a fixed frame.

[0007] Furthermore, the moving component includes a threaded sleeve located on the inner wall of the first clamping plate, a lead screw threadedly connected to the inner wall of the threaded sleeve, the lead screw being rotatably connected to the inner wall of the second clamping plate, and a knob fixedly connected to the outer wall of the lead screw.

[0008] Furthermore, a sliding rod is fixedly connected to one end of the two clamping plates, and the sliding rod is slidably connected to the inner wall of the first clamping plate.

[0009] Furthermore, the limiting component includes a locking plate located at one end of the movable frame, the locking plate being disposed on the outer wall of the ratchet, and a torsion spring being disposed at one end of the locking plate, one end of the torsion spring being connected to one end of the clamping plate, and the other end of the torsion spring being connected to one end of the locking plate.

[0010] Furthermore, a motor is mounted on the bottom of the operating table via a fixed frame, and the motor drive end is connected to the turntable.

[0011] Furthermore, a rubber pad is fixedly connected to the inner circumference of the second clamping plate.

[0012] Furthermore, a guide rod is fixedly connected to the inner wall of the operating table, and the guide rod is slidably connected to the inner wall of the movable frame.

[0013] Furthermore, a support column is fixedly connected to the bottom of the operating table.

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

[0015] 1. In this utility model, during the welding process, the second clamping plate is rotated, which drives the first clamping plate, the rotating rod, and the ratchet to rotate. Due to the limiting component composed of the clamping plate and the torsion spring, the ratchet can only rotate in one direction. This makes it convenient to directly rotate the second clamping plate after welding one side of the automotive part, drive the part to rotate to a suitable angle, and weld the other side without having to disassemble and fix the part again, thus improving welding efficiency.

[0016] 2. In this utility model, clamping plate one and clamping plate two are connected by a screw. When the knob is turned, under the action of the threaded sleeve, clamping plate two can be moved by the screw. Thus, the distance between clamping plate one and clamping plate two can be adjusted according to the size of the part, thereby realizing the clamping of automotive parts of different sizes and improving the adaptability of the device. Attached Figure Description

[0017] Figure 1 This is a perspective view of an auxiliary positioning device for automotive repair welding proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the guide rod structure of an auxiliary positioning device for automotive repair welding proposed in this utility model;

[0019] Figure 3This is a schematic diagram of the lead screw structure of an auxiliary positioning device for automotive repair welding proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of a torsion spring structure for an auxiliary positioning device for automotive repair welding proposed in this utility model.

[0021] Legend:

[0022] 1. Control panel; 2. Turntable; 3. Motor; 4. Linkage rod; 5. Moving frame; 6. Rotating rod; 7. Clamping plate one; 8. Lead screw; 9. Clamping plate two; 10. Threaded sleeve; 11. Slide rod; 12. Rubber pad; 13. Ratchet; 14. Clamping plate; 15. Torsion spring; 16. Guide rod; 17. Support column; 18. Knob. 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 An embodiment of this utility model provides an auxiliary positioning device for automotive repair welding, comprising an operating table 1, a turntable 2 rotatably connected to the bottom of the operating table 1, a movable frame 5 connected to the top of the turntable 2 via a connecting rod 4, one end of the movable frame 5 rotatably connected to the top of the turntable 2, the other end of the movable frame 5 rotatably connected to the bottom of the movable frame 5, a rotating rod 6 rotatably connected to the inner wall of the movable frame 5, a clamping plate 7 fixedly connected to one adjacent end of the rotating rod 6, a clamping plate 9 connected to the inner wall of the clamping plate 7 via a screw 8, a ratchet 13 fixedly connected to one opposite end of the rotating rod 6, a clamping plate 14 provided at one opposite end of the movable frame 5, and a driving component installed at the bottom of the operating table 1 via a fixed frame;

[0025] Specifically, rotating the knob 18 causes the lead screw 8 to rotate within the threaded sleeve 10. Since the threaded sleeve 10 and the lead screw 8 are threadedly connected, and the threaded sleeve 10 is fixedly connected to the inner wall of the clamping plate 7, rotating the knob 18 can move the clamping plate 9, thereby clamping the part. Since the slide bar 11 slides on the inner wall of the clamping plate 7, the stability of the movement of the clamping plate 9 is ensured. During the welding process, if it is necessary to adjust the welding position, the clamping plate 9 can be rotated. When the clamping plate 9 rotates, it drives the clamping plate 7 to rotate, which in turn causes the rotating rod 6 to rotate. The ratchet 13, which is fixedly connected to one end of the rotating rod 6, also rotates accordingly.

[0026] Reference Figures 2-4The system includes a threaded sleeve 10 located on the inner wall of clamping plate 7, a screw rod 8 threadedly connected to the inner wall of clamping plate 9, a knob 18 fixedly connected to the outer wall of screw rod 8, a slide rod 11 fixedly connected to one end of clamping plate 9, and a slide rod 11 slidably connected to the inner wall of clamping plate 7. A locking plate 14 located at one end of the movable frame 5 is located on the outer wall of ratchet 13. A torsion spring 15 is located at one end of the locking plate 14, one end of which is connected to the other end of clamping plate 7, and the other end of which is connected to the end of locking plate 14. A motor 3 is mounted on the bottom of the operating table 1 via a fixed frame, and the drive end of the motor 3 is connected to the turntable 2. A rubber pad 12 is fixedly connected to the inner circumference of clamping plate 9. A guide rod 16 is fixedly connected to the inner wall of the operating table 1, and the guide rod 16 slidably connected to the inner wall of the movable frame 5. A support column 17 is fixedly connected to the bottom of the operating table 1.

[0027] Specifically, motor 3 is started, and the drive end of motor 3 drives turntable 2 to rotate. When turntable 2 rotates, it drives moving frame 5 to move through connecting rod 4. Because one end of moving frame 5 is rotatably connected to the top of turntable 2 and the other end is rotatably connected to its own bottom, the two moving frames 5 will move in opposite directions under the action of connecting rod 4, so that the clamped parts gradually approach and contact each other. At this time, welding of the parts can begin. When ratchet 13 rotates, under the action of torsion spring 15, clamping plate 14 will jump according to the teeth of ratchet 13. At the same time, clamping plate 14 restricts ratchet 13 to rotate only in one direction, thereby ensuring that the parts are adjusted in the welding position. When the device can only rotate in a specific direction, it avoids misoperation. The rubber pad 12 is fixed to the inner circumference of the clamping plate 9 to increase the friction between the device and the parts, preventing the parts from sliding during clamping and protecting the surface of the parts from being scratched by the clamping plate. The guide rod 16 is fixed to the inner wall of the operating table 1 and is slidably connected to the moving frame 5. It guides the movement of the moving frame 5, ensuring the accuracy and stability of the movement of the moving frame 5, thereby improving the positioning accuracy of the parts. The support column 17 is fixed to the bottom of the operating table 1 to support the operating table 1, so that the entire device can be stably placed on the work site, providing stable support for the normal operation of the device.

[0028] Working principle: Rotating knob 18 increases the distance between the two clamping plates 9. Then, the automotive part to be welded is placed at the center of clamping plate 7. Then, rotating knob 18 in the opposite direction drives screw 8 to rotate. Under the action of threaded sleeve 10, the two clamping plates 9 clamp the part. Then, motor 3 is started to drive turntable 2 to rotate. Turntable 2 drives two connecting rods 4 to move. Under the action of the two connecting rods 4, the two moving frames 5 move in opposite directions. After the clamped parts come into contact, welding can begin. During the welding process, clamping plate 9 can be rotated to adjust the welding position. During the rotation, clamping plate 7 drives ratchet 13 to rotate. Under the action of torsion spring 15, ratchet 13 will jump according to the teeth of ratchet 13 when it rotates. Under the action of clamping plate 14, only unidirectional rotation of the part is allowed.

[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. An auxiliary positioning device for automotive repair welding, characterized by: The operation platform (1) bottom end rotating connection has the rotating disc (2), the rotating disc (2) top end is connected with the moving frame (5) through connecting rod (4), the moving frame (5) one end rotating connection in the rotating disc (2) top end, the moving frame (5) the other end rotating connection in the moving frame (5) bottom end, the moving frame (5) inner wall rotating connection has the rotating rod (6), the rotating rod (6) adjacent one end fixedly connected with the clamping plate one (7), the clamping plate one (7) inner wall is connected with the clamping plate two (9) through the moving assembly, the rotating rod (6) is away from one end fixedly connected with the ratchet (13), the moving frame (5) is away from one end and is provided with the limit component, the operation platform (1) bottom end is installed with the driving piece through the fixed frame.

2. A device for assisting positioning in automotive repair welding according to claim 1, characterized in that: The moving assembly includes the threaded sleeve (10) in the inner wall of the clamping plate one (7), the threaded sleeve (10) inner wall is connected with the lead screw (8) in the form of screw thread, the lead screw (8) rotating connection in the inner wall of the clamping plate two (9), the lead screw (8) outer wall fixedly connected with the knob (18).

3. An auxiliary positioning device for automotive repair welding according to claim 2, characterized in that: The clamping plate two (9) is fixedly connected with the sliding rod (11) in the adjacent one end, and the sliding rod (11) is slidingly connected in the inner wall of the clamping plate one (7).

4. The auxiliary positioning device for automobile repair welding according to claim 1, characterized in that: The limit component includes the clamping plate (14) in the moving frame (5) away from one end, the clamping plate (14) is arranged in the outer wall of the ratchet (13), the clamping plate (14) is close to one end and is provided with the torsional spring (15), the torsional spring (15) one end is connected in the clamping plate one (7) away from one end, and the other end of the torsional spring (15) is connected in the clamping plate (14) close to one end.

5. A device for assisting positioning in automotive repair welding according to claim 1, characterized in that: The operation platform (1) bottom end is installed with the motor (3) through the fixed frame, and the motor (3) driving end is connected with the rotating disc (2).

6. A device for assisting positioning in automotive repair welding according to claim 2, characterized in that: The clamping plate two (9) inner wall is fixedly connected with the rubber pad (12).

7. A device for assisting positioning in automotive repair welding according to claim 1, characterized in that: The operation platform (1) inner wall is fixedly connected with the guide rod (16), and the guide rod (16) is slidingly connected in the inner wall of the moving frame (5).

8. A device for assisting positioning in automotive repair welding according to claim 1, characterized in that: The operation platform (1) bottom end is fixedly connected with the support column (17).