An angle-adjustable door hinge polishing device
By designing an adjustable-angle door hinge grinding machine, the machine utilizes a cylinder-driven rotating frame to automatically adjust the grinding head angle and uses a funnel and collection trough to clean up debris. This solves the problems of low hinge angle adjustment efficiency and debris scattering in existing equipment, thereby improving processing speed and table cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XINGDAO FORGING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing door hinge grinding equipment requires users to continuously adjust the hinge angle, resulting in low processing efficiency and scattered grinding debris, making the worktable messy.
An adjustable-angle door hinge grinding device was designed. The rotating frame is driven by a cylinder to tilt the grinding device. Combined with a funnel and a collection trough, the device collects the debris and automatically adjusts the grinding head angle and cleans up the debris.
It improves the processing speed of door hinges, avoids the hassle of manual angle adjustment, and keeps the worktable clean.
Smart Images

Figure CN224526725U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive door hinge processing technology, and in particular relates to an adjustable-angle automotive door hinge grinding device. Background Technology
[0002] As a mechanical device connecting the car door to the vehicle body, the door hinge provides stable support for the door, ensuring that the door can open and close smoothly and allowing the driver and passengers to enter and exit the vehicle normally. During the processing of the door hinge, it needs to be polished to remove the flash, burrs, and oxide scale after casting or forging, laying the foundation for subsequent processes.
[0003] Currently, car door hinges require grinding during processing. After grinding one side of the hinge with a grinding machine, the user needs to adjust the hinge angle so that the grinding machine can grind the other sides. Continuously adjusting the hinge position is cumbersome. Therefore, an adjustable-angle car door hinge grinding device is needed. This device allows for adjustment of the grinding head angle via an adjustable mechanism, eliminating the need for continuous adjustment and improving the processing speed of the door hinges. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable-angle car door hinge grinding device, which allows the angle of the grinding head of the grinding machine to be adjusted through an adjustable structure, avoiding the need for the user to continuously adjust the angle of the car door hinge, and improving the speed of car door hinge processing, thereby solving the aforementioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An adjustable-angle car door hinge grinding device includes an operating table, a processing table fixedly connected to the top of the operating table, a fixed structure fixedly connected to the top of the processing table, a traveling component provided on the top of the operating table, a fixed plate fixedly connected to the surface of the traveling component, a rotating frame one rotatably connected to the front of the fixed plate, a grinding device penetrating the top of the rotating frame one, the rotating frame one being fixedly connected to the grinding device, a fixed rod rotatably connected to the front of the rotating frame one, a rotating frame two rotatably connected to the front of the fixed plate, a cylinder fixedly installed on the top of the rotating frame two by bolts, and the output end of the cylinder penetrating the rotating frame two and rotatably connected to the fixed rod.
[0006] Preferably, the top of the processing table is provided with a material discharge port, and a funnel is fixedly connected to the bottom of the inner cavity of the processing table.
[0007] Preferably, the inner cavity of the processing table is provided with a collection trough, which is located directly below the funnel.
[0008] Preferably, a collection pipe is provided through the top of the rotating frame, and the collection pipe is fixedly connected to the rotating frame.
[0009] Preferably, the rotating frame is L-shaped, and the fixing rod is located on the left side of the rotating shaft of the rotating frame.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model places the car door hinge on the top of the processing table and fixes it with a fixing structure. Then, the cylinder is started to drive the rotating frame to move, which in turn causes the grinding equipment to tilt. This allows the angle of the grinding head of the grinding machine to be adjusted by adjusting the structure, avoiding the need for the user to continuously adjust the angle of the car door hinge and improving the speed of car door hinge processing.
[0012] 2. By using a funnel and a collection trough together, when the grinding equipment is grinding the door hinge, the larger pieces of debris generated will fall into the inner cavity of the collection trough through the funnel, preventing large pieces of debris from scattering randomly during the grinding of the door hinge and ensuring the cleanliness of the workbench surface. Attached Figure Description
[0013] in:
[0014] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0015] Figure 2 This is a three-dimensional schematic diagram of the adjustment structure according to an embodiment of the present invention;
[0016] Figure 3 This is a three-dimensional disassembled schematic diagram of the adjustment structure according to an embodiment of the present invention;
[0017] Figure 4 This is a front view schematic diagram of the support structure of one embodiment of the present utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Operating table, 2. Processing table, 3. Fixed structure, 4. Traveling component, 5. Fixed plate, 6. Rotating frame one, 7. Grinding equipment, 8. Fixed rod, 9. Rotating frame two, 10. Cylinder, 11. Material discharge port, 12. Funnel, 13. Collection trough, 14. Collection pipe. Detailed Implementation
[0020] In the following description, embodiments of the adjustable-angle door hinge grinding device of the present invention will be described with reference to the accompanying drawings.
[0021] Example 1:
[0022] Figure 1-4 This invention illustrates an adjustable-angle car door hinge grinding device according to an embodiment of the present invention. It includes an operating table 1, a processing table 2 fixedly connected to the top of the operating table 1, a material discharge port 11 on the top of the processing table 2, a funnel 12 fixedly connected to the bottom of the inner cavity of the processing table 2, and a collection groove 13 located directly below the funnel 12. Through the combined use of the funnel 12 and the collection groove 13, when the grinding device 7 grinds the car door hinge, larger debris will fall through the funnel 12 into the inner cavity of the collection groove 13, preventing large pieces of debris from scattering randomly during grinding and ensuring... To ensure the cleanliness of the surface of the workbench 1, a fixed structure 3 is fixedly connected to the top of the processing table 2. A traveling component 4 is set on the top of the workbench 1. A fixed plate 5 is fixedly connected to the surface of the traveling component 4. A rotating frame 6 is rotatably connected to the front of the fixed plate 5. A grinding device 7 is installed through the top of the rotating frame 6. The rotating frame 6 is fixedly connected to the grinding device 7. A fixed rod 8 is rotatably connected to the front of the rotating frame 6. A rotating frame 9 is rotatably connected to the front of the fixed plate 5. A cylinder 10 is fixedly installed on the top of the rotating frame 9 by bolts. The output end of the cylinder 10 passes through the rotating frame 9 and is rotatably connected to the fixed rod 8.
[0023] Example 2:
[0024] Figure 1-4 This invention discloses an adjustable-angle car door hinge grinding device according to an embodiment of the present invention. It includes an operating table 1, a processing table 2 fixedly connected to the top of the operating table 1, a fixing structure 3 fixedly connected to the top of the processing table 2, a traveling component 4 on the top of the operating table 1, a fixing plate 5 fixedly connected to the surface of the traveling component 4, a rotating frame 6 rotatably connected to the front of the fixing plate 5, a collecting pipe 14 penetrating through the top of the rotating frame 6, the collecting pipe 14 being fixedly connected to the rotating frame 6, the rotating frame 6 being L-shaped, a fixing rod 8 located to the left of the rotating axis of the rotating frame 6, a grinding device 7 penetrating through the top of the rotating frame 6, the rotating frame 6 being fixedly connected to the grinding device 7, a fixing rod 8 rotatably connected to the front of the rotating frame 6, a rotating frame 9 rotatably connected to the front of the fixing plate 5, a cylinder 10 fixedly mounted on the top of the rotating frame 9 by bolts, the output end of the cylinder 10 penetrating the rotating frame 9 and rotatably connected to the fixing rod 8.
[0025] Working principle: When using this utility model, the user places the car door hinge on the top of the processing table 2 and fixes it with the fixing structure 3. Then, the cylinder 10 is activated, which drives the fixing rod 8 to move. This causes the cylinder 10 to rotate the rotating frame 6, which in turn causes the grinding equipment 7 to tilt left and right. Activating the grinding equipment 7 allows it to grind the car door hinge, avoiding the need for the user to continuously adjust the angle of the car door hinge and improving the processing speed. Through the combined use of the funnel 12 and the collection groove 13, when the grinding equipment 7 grinds the car door hinge, larger pieces of debris will fall into the inner cavity of the collection groove 13 through the funnel 12, preventing large pieces of debris from scattering randomly during the grinding of the car door hinge and ensuring the cleanliness of the surface of the operating table 1.
[0026] In summary, this adjustable-angle car door hinge grinding equipment allows for easy adjustment of the grinding head angle by placing the car door hinge on top of the processing table 2, fixing it with the fixing structure 3, and then activating the cylinder 10 to drive the rotating frame 6 to move. This rotating frame 6 causes the grinding equipment 7 to tilt, thus allowing for easy adjustment of the grinding head angle. This avoids the need for the user to continuously adjust the angle of the car door hinge and improves the speed of car door hinge processing.
Claims
1. An adjustable-angle door hinge grinding device, characterized in that, The system includes an operating table (1), a processing table (2) fixedly connected to the top of the operating table (1), a fixed structure (3) fixedly connected to the top of the processing table (2), a traveling component (4) provided on the top of the operating table (1), a fixed plate (5) fixedly connected to the surface of the traveling component (4), a rotating frame (6) rotatably connected to the front of the fixed plate (5), a grinding device (7) passing through the top of the rotating frame (6), the rotating frame (6) fixedly connected to the grinding device (7), a fixed rod (8) rotatably connected to the front of the rotating frame (6), a rotating frame (9) rotatably connected to the front of the fixed plate (5), a cylinder (10) fixedly installed on the top of the rotating frame (9) by bolts, the output end of the cylinder (10) passing through the rotating frame (9) and rotatably connected to the fixed rod (8).
2. The adjustable-angle door hinge grinding equipment according to claim 1, characterized in that, The top of the processing table (2) is provided with a material discharge port (11), and a funnel (12) is fixedly connected to the bottom of the inner cavity of the processing table (2).
3. The adjustable-angle door hinge grinding equipment according to claim 2, characterized in that, The inner cavity of the processing table (2) is provided with a collection trough (13), which is located directly below the funnel (12).
4. The adjustable-angle door hinge grinding equipment according to claim 3, characterized in that, A collection pipe (14) is provided through the top of the rotating frame (6), and the collection pipe (14) is fixedly connected to the rotating frame (6).
5. The adjustable-angle door hinge grinding equipment according to claim 4, characterized in that, The rotating frame (6) is L-shaped, and the fixing rod (8) is located on the left side of the rotating axis of the rotating frame (6).