Positioning structure for door hinge leaf hole drilling
By designing a positioning structure for opening holes in car door hinge blades, and using push-pull plates and guide rollers to laterally guide the material strip, the problem of lateral translation during material strip transmission was solved, achieving stability and smoothness in the opening operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XINGDAO FORGING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-14
AI Technical Summary
The door hinge material strip is prone to lateral displacement during the conveying process, which affects the stability of the drilling operation.
A positioning structure for opening holes in car door hinge blades was designed. The material strip is laterally guided by guide wheels, and the guide roller is driven by push-pull plate, slider and L-shaped rod to position the material strip and avoid lateral translation.
It improves the stability of the strip during the punching operation, prevents lateral displacement, and ensures the smooth progress of the punching and cutting process.
Smart Images

Figure CN224488484U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive door hinge processing technology, and in particular relates to a positioning structure for opening holes in automotive door hinge leaf plates. Background Technology
[0002] Door hinges are used to connect car doors to the car body, allowing the doors to open and close for easy passenger entry and exit. Currently, car door hinges on the market consist of a rotating leaf plate, a hinge pin, and a fixed leaf plate. Both the fixed and rotating leaf plates have bushings. The hinge pin passes through the bushings on both the fixed and rotating leaf plates, movably connecting them. The leaf plates are processed through punching, cutting, and bending.
[0003] Door hinge leaf punching involves punching a strip of material. The strip is driven by conveyor rollers during transport, resulting in good transport efficiency. However, the strip may shift laterally during translation due to transmission vibration, affecting subsequent punching. Therefore, a positioning structure for door hinge leaf punching is needed to guide the door hinge strip laterally during punching transport. Guide wheels are used to position the strip, preventing lateral shift during transport and improving the stability of the strip during punching operations. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning structure for opening holes in car door hinge sheets, which laterally guides the car door hinge material strip during the hole-opening conveying process and positions it by guide wheels, thereby preventing lateral translation of the material strip during conveying and improving the stability of the material strip during the hole-opening operation, thus solving the technical problems mentioned in the background art.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A positioning structure for opening holes in car door hinge blades, comprising an L-shaped plate: a horizontal plate is fixedly connected to the surface of the L-shaped plate, a cylinder and a slide rail are fixedly connected to the top of the horizontal plate by bolts, a slider is slidably connected to the surface of the slide rail, a push-pull plate is fixedly connected to the output end of the cylinder, a dial shaft is integrally formed on the top of the slider, an L-shaped rod is fixedly connected to the surface of the slider, a guide roller is rotatably connected to the surface of the L-shaped rod, a correction roller is installed on the surface of the L-shaped plate, a base is fixedly connected to the bottom of the L-shaped plate, and a conveying roller group, a punching assembly, and a punching assembly are installed on the top of the base.
[0006] Preferably, two symmetrically arranged clamping blocks are welded to the top of the L-shaped plate, and the clamping blocks are slidably connected to the push-pull plate.
[0007] Preferably, the top end of the dial shaft extends into the inner cavity of the push-pull plate, and a rotating sleeve is rotatably connected to the surface of the dial shaft, the rotating sleeve being in contact with the inner wall of the push-pull plate.
[0008] Preferably, a cover is fixedly connected to the top of the horizontal plate by bolts, and the cover is slidably connected to the L-shaped rod.
[0009] Preferably, the surface of the conveyor roller assembly is provided with a door hinge material strip.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a push-pull plate to move the dial shaft, which in turn moves the L-shaped rod via a slider. The L-shaped rod then moves the guide roller to laterally position the material strip, thus achieving lateral guidance of the door hinge material strip during hole-making and positioning by the guide roller. This prevents lateral displacement of the material strip during conveying and improves the stability of the material strip during hole-making operations.
[0012] 2. By setting the clamping block, this utility model limits the movement of the push-pull plate, preventing the push-pull plate from shaking during movement, thereby improving the stability of the push-pull plate when it moves.
[0013] 3. This utility model uses a rotating sleeve to protect the pivot shaft and the push-pull plate, thus avoiding excessive wear when they are in direct contact.
[0014] 4. This utility model protects the outside of the push-pull plate and the lever shaft by setting up a cover, which avoids the situation of the structure getting caught on foreign objects during operation, thereby improving the smoothness of the structure operation. Attached Figure Description
[0015] in:
[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0017] Figure 2 This is a perspective view of the guide roller and cover according to one embodiment of the present invention;
[0018] Figure 3 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;
[0019] Figure 4 This is one embodiment of the present utility model. Figure 2 A magnified view of point B in the middle.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. L-shaped plate, 2. Horizontal plate, 3. Cylinder, 4. Slide rail, 5. Slider, 6. Push-pull plate, 7. Clamping block, 8. Dial shaft, 9. Rotary sleeve, 10. L-shaped rod, 11. Guide roller, 12. Cover, 13. Correction roller, 14. Base platform, 15. Conveyor roller group, 16. Punching assembly, 17. Punching assembly. Detailed Implementation
[0022] In the following description, embodiments of the positioning structure for the door hinge leaf opening of this utility model will be described with reference to the accompanying drawings.
[0023] Example 1:
[0024] Figure 1-4 This invention illustrates a positioning structure for opening holes in a car door hinge leaf according to an embodiment of the present invention. It includes an L-shaped plate 1; a horizontal plate 2 is fixedly connected to the surface of the L-shaped plate 1; a cylinder 3 and a slide rail 4 are fixedly connected to the top of the horizontal plate 2 by bolts; a slider 5 is slidably connected to the surface of the slide rail 4; a push-pull plate 6 is fixedly connected to the output end of the cylinder 3; two symmetrically arranged clamping blocks 7 are welded to the top of the L-shaped plate 1, and the clamping blocks 7 are slidably connected to the push-pull plate 6. The clamping blocks 7 limit the movement of the push-pull plate 6, preventing wobbling during movement and thus improving the stability of the push-pull plate 6 during movement. The slider 5... The top of the plate has an integrally formed pivot shaft 8, the top end of which extends into the inner cavity of the push-pull plate 6. A rotating sleeve 9 is rotatably connected to the surface of the pivot shaft 8. The rotating sleeve 9 fits against the inner wall of the push-pull plate 6. The rotating sleeve 9 provides padding protection between the pivot shaft 8 and the push-pull plate 6, avoiding excessive wear when they are in direct contact. An L-shaped rod 10 is fixedly connected to the surface of the slider 5. A guide roller 11 is rotatably connected to the surface of the L-shaped rod 10. A correction roller 13 is installed on the surface of the L-shaped plate 1. A base platform 14 is fixedly connected to the bottom of the L-shaped plate 1. A conveying roller group 15, a punching assembly 16, and a punching assembly 17 are installed on the top of the base platform 14.
[0025] Example 2:
[0026] Figure 1-4This invention illustrates a positioning structure for opening holes in a car door hinge leaf according to an embodiment of the present invention. It includes an L-shaped plate 1; a horizontal plate 2 is fixedly connected to the surface of the L-shaped plate 1; a cylinder 3 and a slide rail 4 are fixedly connected to the top of the horizontal plate 2 by bolts; a slider 5 is slidably connected to the surface of the slide rail 4; a push-pull plate 6 is fixedly connected to the output end of the cylinder 3; a pivot shaft 8 is integrally formed on the top of the slider 5; an L-shaped rod 10 is fixedly connected to the surface of the slider 5; a guide roller 11 is rotatably connected to the surface of the L-shaped rod 10; and the top of the horizontal plate 2 is fixedly connected to... A cover 12 is attached, and the cover 12 is slidably connected to the L-shaped rod 10. The cover 12 protects the outside of the push-pull plate 6 and the deflector shaft 8, preventing the structure from getting caught on foreign objects during operation, thereby improving the smoothness of the structure operation. A correction roller 13 is installed on the surface of the L-shaped plate 1, and a base platform 14 is fixedly connected to the bottom of the L-shaped plate 1. A conveyor roller group 15, a punching assembly 16, and a punching assembly 17 are installed on the top of the base platform 14. A door hinge material strip is provided on the surface of the conveyor roller group 15.
[0027] Working principle: When using this utility model, the user places the metal strip on the surface of the conveying roller group 15 and the correction roller 13, and at the same time activates the cylinder 3 to drive the push-pull plate 6 to move. The push-pull plate 6 then moves the dial shaft 8, which in turn drives the L-shaped rod 10 to move through the slider 5. During this process, the slider 5 is limited by the slide rail 4 to prevent it from shaking during movement. Then, the L-shaped rod 10 drives the guide roller 11 to laterally position the strip. The intermittent feeding of the strip by the conveying roller group 15 can meet the needs of the punching assembly 16 and the punching assembly 17 for punching and punching the strip. This achieves lateral guidance of the door hinge strip during punching and conveying, and positioning it by the guide roller to prevent lateral displacement of the strip during conveying, thereby improving the stability of the strip during punching operations.
[0028] In summary, the positioning structure for the door hinge leaf opening uses a push-pull plate 6 to move the dial shaft 8, which in turn moves the L-shaped rod 10 via the slider 5. The L-shaped rod 10 then moves the guide roller 11 to laterally position the material strip. This achieves lateral guidance of the door hinge material strip during the opening process and positioning it with the guide roller, preventing lateral displacement of the material strip during transport and thus improving the stability of the material strip during the opening operation.
Claims
1. A positioning structure for opening holes in a car door hinge leaf, characterized in that, The L-shaped plate (1) includes a horizontal plate (2) fixedly connected to the surface of the L-shaped plate (1), a cylinder (3) and a slide rail (4) fixedly connected to the top of the horizontal plate (2) by bolts, a slider (5) slidably connected to the surface of the slide rail (4), a push-pull plate (6) fixedly connected to the output end of the cylinder (3), a dial shaft (8) integrally formed on the top of the slider (5), an L-shaped rod (10) fixedly connected to the surface of the slider (5), a guide roller (11) rotatably connected to the surface of the L-shaped rod (10), a correction roller (13) installed on the surface of the L-shaped plate (1), a base platform (14) fixedly connected to the bottom of the L-shaped plate (1), and a conveying roller group (15), a punching assembly (16), and a punching assembly (17) installed on the top of the base platform (14).
2. The positioning structure for opening holes in a car door hinge leaf according to claim 1, characterized in that, The top of the L-shaped plate (1) has two symmetrically arranged clamping blocks (7), which are slidably connected to the push-pull plate (6).
3. The positioning structure for opening holes in a car door hinge leaf according to claim 2, characterized in that, The top end of the dial (8) extends into the inner cavity of the push-pull plate (6), and a rotating sleeve (9) is rotatably connected to the surface of the dial (8), and the rotating sleeve (9) is in contact with the inner wall of the push-pull plate (6).
4. The positioning structure for opening holes in a car door hinge leaf according to claim 3, characterized in that, The top of the horizontal plate (2) is fixedly connected to a cover (12) by bolts, and the cover (12) is slidably connected to the L-shaped rod (10).
5. A positioning structure for opening holes in a car door hinge leaf according to claim 4, characterized in that, The surface of the conveyor roller group (15) is provided with door hinge material strip.