Positioning device for automobile hinge welding

By using the clamping parts and limiting toothed rings of the positioning device, the problem of automatic adjustment of the position and angle of parts in hinge welding is solved, which improves welding safety and quality and avoids the danger of spark splashing.

CN223833811UActive Publication Date: 2026-01-27QINGDAO JIUTAI AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520433167.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-27
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

In the current automotive hinge welding process, the position and angle of the parts rely on manual adjustment, and the sparks during welding pose a danger to the hands and affect the welding effect.

Method used

The positioning device includes a clamping component, a limiting toothed ring, and a pressing component. The clamping component fixes the hinge base, the limiting toothed ring adjusts the angle, and the pressing component fixes the hinge base, avoiding manual support and improving safety and welding quality.

Benefits of technology

This technology enables stable positioning and angle adjustment of hinge components, improving welding safety and quality, and preventing sparks from harming the hands.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning device for welding an automobile hinge, which belongs to the technical field of automobile part processing, solves the problem that welding personnel need to manually support and position a welding part when the existing hinge is welded, and comprises a processing seat, a working table and an extrusion assembly, according to the hinge base machining device, the extrusion assembly and the positioning mechanism are arranged, the clamping blocks moving towards the middle end at the same time are used for clamping and fixing a hinge base, it is guaranteed that the hinge base is located at the center position of the workbench, and then the hinge base is clamped and fixed through cooperation of the limiting gear ring and the gear column; the angle of the clamping piece clamping the to-be-welded part is adjusted, the part and the hinge base are in stable butt joint, at the moment, the angle of the part can be stably adjusted, the part does not need to be manually supported by welding personnel, and therefore the safety of equipment during operation is improved, and the working quality of the equipment is guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing technology, specifically relating to a positioning device for welding automotive hinges. Background Technology

[0002] A hinge is a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges can be made of movable components or foldable materials. Hinges are often installed on cabinets and are mainly classified by material into stainless steel hinges and iron hinges. Different types of hinges are also used in automobiles, such as in car doors and trunks, to control the opening, closing, and rotation of parts. The processing of automotive hinges requires multiple steps, the most common of which is welding.

[0003] Currently, when welding hinges, the parts to be welded are mostly manually assembled and supported by workers, and then welded at the joints using welding torches and other tools. This method has certain problems in actual use. Specifically, when assembling and splicing parts, the position, angle, and level of the parts rely entirely on manual adjustment and calibration by workers. Furthermore, during the welding process, sparks can easily splash onto the hands of those supporting the parts, affecting the overall welding effect. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] A positioning device for welding automotive hinges includes a processing base, a worktable, and an extrusion assembly. The worktable is mounted on the surface of the processing base, and the extrusion assembly is disposed on the surface of the worktable. A positioning mechanism for limiting the position of spliced ​​parts is mounted on the surface of the worktable. The positioning mechanism includes a clamping member and a connecting arm. The connecting arm is disposed on the surface of the worktable, and the clamping member is mounted on the end of the connecting arm. The clamping member positions the spliced ​​parts.

[0007] As a preferred technical solution of this utility model, the clamping component includes a support base, a side connecting plate, a clamping plate, a rotating frame, and a torsion spring. The support base is installed at the end of the connecting arm, the side connecting plate is installed on the side of the support base, the rotating frame is rotatably installed on the side, and the clamping plate is installed at the end of the rotating frame. The side connecting plate and the clamping plate clamp the spliced ​​parts, and the torsion springs are symmetrically arranged on both sides of the rotating frame.

[0008] As a preferred technical solution of this utility model, the positioning mechanism further includes a positioning seat, a toothed column, and a limiting toothed ring. The multiple sets of positioning seats are installed on the upper surface of the worktable, the toothed column is installed on the top of the positioning seat, and the limiting toothed ring is installed on the side of the connecting arm end away from the clamping member. The limiting toothed ring is slidably connected to the toothed column.

[0009] As a preferred technical solution of this utility model, the positioning device further includes a support mechanism, which includes a telescopic support rod, a telescopic rod, and a mask seat. The telescopic support rod is installed on the upper surface of the workbench, the telescopic rod is rotatably installed at the output end of the telescopic support rod, and the mask seat is installed at the end of the telescopic rod.

[0010] As a preferred technical solution of this utility model, the mask base is composed of a base plate and wing plates. The base plate is disposed on the side of the telescopic rod, and the wing plates are symmetrically installed on the surface of the base plate. The end of the telescopic rod is connected to the side of one set of wing plates.

[0011] As a preferred technical solution of this utility model, the extrusion assembly includes a rotating handle, a moving component, and a clamping block. The moving component is installed inside the workbench, the rotating handle is installed on the side of the workbench, the rotating handle passes through the workbench and connects to the end of the moving component, and the clamping block is symmetrically arranged outside the moving component.

[0012] As a preferred embodiment of this utility model, the moving component includes a bidirectional lead screw, a guide rod, and a moving end. The bidirectional lead screw is rotatably installed inside the worktable, the guide rod is fixedly installed inside the worktable, the bidirectional lead screw and the guide rod are parallel in position, the moving end is symmetrically threaded and installed outside the bidirectional lead screw, the moving end is slidably connected to the guide rod, and the moving end is connected to the clamping block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, by setting up an extrusion component and a positioning mechanism, a clamping block that moves towards the center simultaneously is used to clamp and fix the hinge base, ensuring that the hinge base is in the center position of the worktable. Then, through the cooperation of the limiting tooth ring and the tooth column, the angle of the clamping component holding the part to be welded is adjusted, allowing the part to be stably connected with the hinge base. At this time, the angle of the part can be stably adjusted, and the part does not require manual support from the welding personnel, thereby improving the safety of the equipment during operation and ensuring the working quality of the equipment itself. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model.

[0016] Figure 2 This is a perspective view of the positioning mechanism structure of this utility model.

[0017] Figure 3 This is a perspective view of the clamping component structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the support mechanism in this utility model.

[0019] Figure 5 This is a schematic diagram of the extrusion assembly in this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the movable component in this utility model.

[0021] The correspondence between the labels and component names in the attached figures is as follows:

[0022] 1. Machining base; 2. Worktable; 3. Extrusion assembly; 31. Rotating handle; 32. Moving assembly; 321. Two-way lead screw; 322. Guide rod; 323. Moving end; 33. Clamping block; 4. Positioning mechanism; 41. Positioning seat; 42. Tooth column; 43. Limiting toothed ring; 44. Clamping component; 441. Support seat; 442. Side connecting plate; 443. Clamping plate; 444. Rotating frame; 445. Torsion spring; 45. Connecting arm; 5. Support mechanism; 51. Telescopic support rod; 52. Telescopic rod; 53. Mask seat. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0026] Depend on Figure 1 As shown, it is a structural schematic diagram of the positioning device for welding automotive hinges in this embodiment, including a processing base 1, a worktable 2 and an extrusion assembly 3. The worktable 2 is mounted on the surface of the processing base 1, the extrusion assembly 3 is provided on the surface of the worktable 2, and a positioning mechanism 4 for limiting the position of spliced ​​parts is mounted on the surface of the worktable 2.

[0027] In use, the hinge base to be welded is placed on the upper surface of the workbench 2. The hinge base is clamped and fixed by the operation of the pressing component 3. Then, the hinge part to be welded is positioned by the positioning mechanism 4, so that the hinge part is stably placed on the surface of the hinge base, which makes it easier for the welder to weld the two parts. The hinge parts are quickly positioned to ensure the stability and accuracy of the welding.

[0028] From the appendix Figure 2 As shown, it is a structural schematic diagram of the positioning mechanism 4 in this embodiment. The positioning mechanism 4 includes a clamping member 44 and a connecting arm 45. The connecting arm 45 is disposed on the surface of the workbench 2, and the clamping member 44 is installed at the end of the connecting arm 45. The clamping member 44 is used to position the spliced ​​parts.

[0029] During use, the clamping member 44 clamps the part to be welded at the end, and the connecting arm 45 moves and positions the part to be stably attached to the hinge base surface, ensuring the stability and accuracy of the part's position during the welding process.

[0030] From the appendix Figure 3 As shown, this is a structural schematic diagram of the clamping member 44 in this embodiment. The clamping member 44 includes a support base 441, a side connecting plate 442, a clamping plate 443, a rotating frame 444, and a torsion spring 445. The support base 441 is installed at the end of the connecting arm 45, the side connecting plate 442 is installed on the side of the support base 441, the rotating frame 444 is rotatably installed on the side, and the clamping plate 443 is installed at the end of the rotating frame 444. The side connecting plate 442 and the clamping plate 443 clamp the spliced ​​parts, and the torsion spring 445 is symmetrically arranged on both sides of the rotating frame 444.

[0031] During use, by moving the clamping plate 443, the distance between the clamping plate 443 and the side connecting plate 442 is increased. At this time, the torsion spring 445 enters the storage state. Then, the part to be welded is placed between the clamping plate 443 and the side connecting plate 442. Through the release of the elastic force of the torsion spring 445, the clamping plate 443 is deflected to the side closer to the side connecting plate 442 to clamp and fix the part. This makes it easier for the welder to adjust the position and angle of the connecting arm 45 while simultaneously adjusting the position and angle of the part. In addition, the connecting arm 45 extends the distance between the welder's hand and the welding point, preventing sparks from splashing onto the welder's hand during the welding process.

[0032] From the appendix Figure 2 As shown, it is a structural schematic diagram of the positioning mechanism 4 in this embodiment. The positioning mechanism 4 also includes a positioning seat 41, a toothed column 42 and a limiting toothed ring 43. The multiple sets of positioning seats 41 are installed on the upper surface of the workbench 2, the toothed column 42 is installed on the top of the positioning seat 41, and the limiting toothed ring 43 is installed on the side of the end of the connecting arm 45 away from the clamping member 44. The limiting toothed ring 43 is slidably connected to the toothed column 42.

[0033] In use, by fitting the limiting toothed ring 43 outside the toothed column 42, the toothed blocks on the inner wall of the limiting toothed ring 43 cooperate with the toothed blocks on the outside of the toothed column 42 to adjust and limit the deflection angle of both the connecting arm 45 and the clamping member 44, thereby ensuring the stability and accuracy of the angle of the end part of the clamping member 44.

[0034] From the appendix Figure 4 As shown, it is a structural schematic diagram of the support mechanism 5 in this embodiment. The positioning device also includes the support mechanism 5. The support mechanism 5 includes a telescopic support rod 51, a telescopic rod 52 and a mask seat 53. The telescopic support rod 51 is installed on the upper surface of the workbench 2. The telescopic rod 52 is rotatably installed at the output end of the telescopic support rod 51. The mask seat 53 is installed at the end of the telescopic rod 52.

[0035] During use, the shielding mask used for welding is installed on the mask base 53. Then, through the cooperation of the telescopic rod 52 and the telescopic support rod 51, the angle and position of the shielding mask can be adjusted and changed, so that the welder does not need to hold the shielding mask and can stably weld the hinge parts.

[0036] From the appendix Figure 4 As shown, the mask base 53 consists of a base plate and wing plates. The base plate is set on the side of the telescopic rod 52, and the wing plates are symmetrically installed on the surface of the base plate. The end of the telescopic rod 52 is connected to the side of one of the wing plates. In use, the handle part of the mask is installed between the two sets of wing plates. The position and angle of the mask panel are fixed through the threaded hole inside the base plate.

[0037] From the appendix Figure 5As shown, it is a structural schematic diagram of the extrusion component 3 in this embodiment. The extrusion component 3 includes a rotating handle 31, a moving component 32 and a clamping block 33. The moving component 32 is installed inside the workbench 2, the rotating handle 31 is installed on the side of the workbench 2, the rotating handle 31 passes through the workbench 2 and is connected to the end of the moving component 32, and the clamping block 33 is symmetrically arranged outside the moving component 32.

[0038] During use, rotating the handle 31 causes the moving component 32 to enter the operating state, driving the two sets of clamping blocks 33 to move simultaneously towards the middle, clamping and fixing the hinge base in the middle, and assisting in positioning the hinge base to be welded.

[0039] From the appendix Figure 6 As shown, this is a schematic diagram of the structure of the moving component 32 in this embodiment. The moving component 32 includes a bidirectional lead screw 321, a guide rod 322, and a moving end 323. The bidirectional lead screw 321 is rotatably installed inside the worktable 2, and the guide rod 322 is fixedly installed inside the worktable 2. The bidirectional lead screw 321 and the guide rod 322 are parallel in position. The moving end 323 is symmetrically threaded and installed outside the bidirectional lead screw 321. The moving end 323 is slidably connected to the guide rod 322 and is connected to the clamping block 33.

[0040] During use, rotating the handle 31 causes the bidirectional lead screw 321 to rotate inside the worktable 2. At this time, the moving end 323 moves along the thread on the outside of the bidirectional lead screw 321. Both sets of moving ends 323 move towards the center at the same time, causing the clamping blocks 33 to move synchronously to clamp and position the hinge base on the surface of the worktable 2. The two sets of clamping blocks 33 are in a synchronous running state, ensuring that the hinge base is always in the center position of the worktable 2 after clamping, which is convenient for subsequent welding.

[0041] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A positioning device for welding automotive hinges, characterized in that, The assembly includes a processing base (1), a worktable (2), and an extrusion assembly (3). The worktable (2) is mounted on the surface of the processing base (1), and the extrusion assembly (3) is provided on the surface of the worktable (2). A positioning mechanism (4) for limiting the position of spliced ​​parts is mounted on the surface of the worktable (2). The positioning mechanism (4) includes a clamping member (44) and a connecting arm (45). The connecting arm (45) is provided on the surface of the worktable (2), and the clamping member (44) is installed at the end of the connecting arm (45). The clamping member (44) positions the spliced ​​parts.

2. The positioning device for welding automotive hinges according to claim 1, characterized in that: The clamping component (44) includes a support base (441), a side connecting plate (442), a clamping plate (443), a rotating frame (444), and a torsion spring (445). The support base (441) is installed at the end of the connecting arm (45), the side connecting plate (442) is installed on the side of the support base (441), the rotating frame (444) is rotatably installed on the side, and the clamping plate (443) is installed at the end of the rotating frame (444). The side connecting plate (442) and the clamping plate (443) clamp the spliced ​​parts. The torsion spring (445) is symmetrically arranged on both sides of the rotating frame (444).

3. The positioning device for welding automotive hinges according to claim 2, characterized in that: The positioning mechanism (4) further includes a positioning seat (41), a toothed column (42), and a limiting toothed ring (43). The multiple positioning seats (41) are installed on the upper surface of the workbench (2), the toothed column (42) is installed on the top of the positioning seat (41), and the limiting toothed ring (43) is installed on the side of the end of the connecting arm (45) away from the clamping member (44). The limiting toothed ring (43) is slidably connected to the toothed column (42).

4. The positioning device for welding automotive hinges according to claim 1, characterized in that: The positioning device also includes a support mechanism (5), which includes a telescopic support rod (51), a telescopic rod (52), and a mask seat (53). The telescopic support rod (51) is installed on the upper surface of the workbench (2), the telescopic rod (52) is rotatably installed at the output end of the telescopic support rod (51), and the mask seat (53) is installed at the end of the telescopic rod (52).

5. The positioning device for welding automotive hinges according to claim 4, characterized in that: The mask base (53) consists of a base plate and wing plates. The base plate is set on the side of the telescopic rod (52), and the wing plates are symmetrically installed on the surface of the base plate. The end of the telescopic rod (52) is connected to the side of one of the wing plates.

6. The positioning device for welding automotive hinges according to claim 1, characterized in that: The extrusion assembly (3) includes a rotating handle (31), a moving assembly (32), and a clamping block (33). The moving assembly (32) is installed inside the workbench (2), the rotating handle (31) is installed on the side of the workbench (2), the rotating handle (31) passes through the workbench (2) and is connected to the end of the moving assembly (32), and the clamping block (33) is symmetrically arranged outside the moving assembly (32).

7. The positioning device for welding automotive hinges according to claim 6, characterized in that: The moving component (32) includes a bidirectional lead screw (321), a guide rod (322), and a moving end (323). The bidirectional lead screw (321) is rotatably installed inside the worktable (2), and the guide rod (322) is fixedly installed inside the worktable (2). The bidirectional lead screw (321) and the guide rod (322) are parallel in position. The moving end (323) is symmetrically threaded and installed outside the bidirectional lead screw (321). The moving end (323) is slidably connected to the guide rod (322) and is connected to the clamping block (33).