An assembly device for the hinge in a car sliding door
By using adsorption and adjustment components in the automotive sliding door hinge assembly device, the problem of hinge misalignment caused by sliding during installation was solved, thereby improving stability and precision, and enhancing assembly efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LITAI AUTOMOTIVE ELECTRONICS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the sliding door hinge of a car is prone to sliding during the installation process due to the smooth outer wall, which causes the mounting groove to be misaligned and requires manual repositioning, affecting the assembly efficiency.
Using an adsorption and adjustment assembly, the hinge is stably adsorbed onto the worktable using a vacuum generator and suction cups, and dust is removed by air pipes and air plates. Combined with a lifting assembly and threaded plate, the hinge position is adjusted to ensure stability and accuracy.
It improves the stability and accuracy of hinge installation, reduces the need for manual adjustments, increases assembly efficiency, and ensures installation quality.
Smart Images

Figure CN224424804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge installation technology, specifically an assembly device for hinges in automobile sliding doors. Background Technology
[0002] The hinge in a car sliding door is a key component connecting the sliding door to the car body. It is usually composed of multiple metal parts and is connected by pivots, pins and other means, allowing the sliding door to slide smoothly open and close along a specific track. The sliding door is more convenient to open, and passengers do not need to worry about hitting obstacles or vehicles when the door is opened. The sliding door is easier to operate and safer to get in and out of the car.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220944975U) discloses an assembly device for a hinge on a sliding door of an automobile. The device includes an assembly plate, a first corner cylinder and a second corner cylinder mounted on the top of the assembly plate, pressure heads mounted on the top of the first and second corner cylinders respectively, a support column mounted on the top of the assembly plate, a supporting column fixedly mounted on the top of the assembly plate, a door leaf mounted on the top of the assembly plate, a slide rail mounted on the top of the assembly plate, a sliding block slidably mounted on the top of the slide rail, a limiter fixedly mounted on the top of the sliding block, a guide bearing housed within the limiter, a needle cylinder fixedly mounted on the top of the assembly plate, and the needle cylinder connected to the guide bearing. A body leaf is mounted on the top of the door leaf. This utility model uses the needle cylinder to push the guide bearing, thereby moving the body leaf. After adjustment, it is fixed in place by bolts and nuts on the second U-shaped hole and the first small round hole, ensuring the reference and accuracy of the parts during assembly.
[0004] Although the aforementioned patent uses components such as needle cylinders and guide bearings to move the vehicle body panels by pushing the guide bearings with the needle cylinders, thereby adjusting them to the appropriate position for bolt and nut installation, the hinges are often irregularly shaped. When placed on the mounting table, they are prone to sliding due to the smooth outer wall, causing misalignment of the mounting slots corresponding to the bolts. This necessitates manual repositioning, which is detrimental to improving the assembly efficiency of the hinges.
[0005] Therefore, this utility model provides an assembly device for the hinge in a sliding door of an automobile to solve the above-mentioned problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides an assembly device for the hinge in a sliding door of an automobile, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution:
[0009] An assembly device for a hinge in a sliding door of an automobile includes a worktable, a support column fixedly connected to the bottom of the worktable, and an adsorption assembly provided at the top of the worktable.
[0010] The adsorption assembly includes a hollow base fixedly connected to the top of the workbench, a suction plate fixedly connected to the top of the hollow base, suction cups slidably connected to the inner wall of the suction plate, and a number of suction cups. A rotating arm is fixedly connected to the top of the workbench, an air pipe is fixedly connected inside the rotating arm, an air plate is fixedly connected to the end of the air pipe, and an adjustment assembly is provided at the top of the workbench.
[0011] As a preferred technical solution of this application, the adsorption assembly further includes an air pump fixedly connected to the top of the workbench. The output end of the air pump is fixedly connected to a vacuum generator via a hose. The negative pressure end of the vacuum generator is fixedly connected to the side wall of the hollow base via a negative pressure pipe. The output end of the vacuum generator is fixedly connected to the input end of the rotating arm via a connecting pipe.
[0012] As a preferred technical solution of this application, the adjustment component includes a slide fixedly connected to the top of the workbench, a slide block slidably connected inside the slide, and a lifting component provided at the top of the slide block.
[0013] As a preferred technical solution of this application, the adjustment assembly further includes a threaded plate fixedly connected to the top of the slide, and a screw is threadedly connected to the inner wall of the threaded plate, the end of the screw being rotatably sleeved with the outer wall of the slide.
[0014] As a preferred technical solution of this application, the lifting assembly includes a column fixedly connected to the top of the slide block, a retaining ball fixedly connected inside the column by a spring, an mounting plate slidably connected to the outer wall of the column, and a retaining groove formed on the inner wall of the mounting plate.
[0015] As a preferred technical solution of this application, the top end of the mounting plate is provided with a mounting groove, and a mounting bolt is slidably connected inside the mounting groove.
[0016] (III) Beneficial Effects
[0017] By incorporating an adsorption component, the stability of the hinge during installation can be improved, preventing hinge displacement due to operator contact and enhancing assembly accuracy and efficiency. Through the cooperation of components such as an air pump, vacuum generator, hollow base, and suction cup, the hinge is stably adsorbed onto the suction plate using the principle of pressure difference, facilitating installation. Combined with air pipes and an air plate, compressed gas can simultaneously and quickly remove dust and impurities from the hinge's outer wall, preventing impurities and dust from affecting installation quality. This component has a simple structure, high practicality, and significantly improves hinge assembly efficiency. Attached Figure Description
[0018] Figure 1 A schematic diagram of the overall structure of an assembly device for a hinge in a sliding door of an automobile;
[0019] Figure 2 This is a schematic diagram of the vacuum generator in the assembly device of the hinge in a sliding door of an automobile.
[0020] Figure 3 This is a schematic diagram of the disassembled slide table in the assembly device of the hinge in a sliding door of an automobile.
[0021] Figure 4 This is a schematic diagram of the ball-locking mechanism in the hinge assembly device of a sliding door for automobiles.
[0022] In the picture:
[0023] 1. Workbench; 2. Hollow seat; 3. Suction plate; 4. Suction cup; 5. Rotary arm; 6. Air pipe; 7. Air plate; 8. Air pump; 9. Hose; 10. Vacuum generator; 11. Negative pressure pipe; 12. Connecting pipe; 13. Slide table; 14. Slide seat; 15. Threaded plate; 16. Screw; 17. Column; 18. Ball clamp; 19. Mounting plate; 20. Mounting slot. Detailed Implementation
[0024] 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.
[0025] This utility model provides an assembly device for the hinge in a sliding door of an automobile, such as... Figures 1-4 As shown, the assembly device for the hinge in a sliding car door includes a worktable 1, a support column is fixedly connected to the bottom end of the worktable 1, and an adsorption assembly is provided at the top end of the worktable 1.
[0026] The adsorption assembly includes a hollow base 2 fixedly connected to the top of the workbench 1, a suction plate 3 fixedly connected to the top of the hollow base 2, a suction cup 4 slidably connected to the inner wall of the suction plate 3, and a number of suction cups 4, a rotating arm 5 fixedly connected to the top of the workbench 1, an air pipe 6 fixedly connected inside the rotating arm 5, an air plate 7 fixedly connected to the end of the air pipe 6, and an adjustment assembly provided at the top of the workbench 1.
[0027] The adsorption assembly also includes an air pump 8 fixedly connected to the top of the workbench 1. The output end of the air pump 8 is fixedly connected to a vacuum generator 10 via a hose 9. The negative pressure end of the vacuum generator 10 is fixedly connected to the side wall of the hollow base 2 via a negative pressure pipe 11. The output end of the vacuum generator 10 is fixedly connected to the input end of the rotating arm 5 via a connecting pipe 12.
[0028] Specifically, the support columns provide sufficient support and stability for the workbench 1. The suction components allow for the adsorption of irregularly shaped hinges using suction cups 4, ensuring they remain stably mounted on the platform and preventing slippage due to human contact. The air pump 8 and vacuum generator 10 work together, with compressed gas driving the vacuum generator 10. The vacuum generator 10, in conjunction with the negative pressure pipe 11, fills the hollow base 2 with suction, which in turn allows the suction cups 4 to stably hold the hinges, thus improving stability. This design avoids wear on the hinge's outer wall caused by physical clamping. Through the connection pipe 12, air pipe 6, and air plate 7, compressed gas can be quickly ejected from the air plate 7 to remove dust and impurities generated during hinge production. This prevents impurities from affecting the installation quality of the hinge and sliding door, improving installation efficiency. The rotating arm 5 allows for multi-angle rotation, facilitating operator adjustment of the airflow direction. This component has a simple structure, high practicality, and improves the stability of the hinge during installation while reducing dust adhering to the hinge's outer wall, thus improving installation quality. The adjustment component includes a slide table 13 fixedly connected to the top of the workbench 1. A slide base 14 is slidably connected inside the slide table 13, and a lifting component is located at the top of the slide base 14.
[0029] The adjustment assembly also includes a threaded plate 15 fixedly connected to the top of the slide 13. The inner wall of the threaded plate 15 is threaded with a screw 16, and the end of the screw 16 is rotatably sleeved with the outer wall of the slide 14.
[0030] The lifting assembly includes a column 17 fixedly connected to the top of the slide block 14, a ball 18 fixedly connected inside the column 17 by a spring, and a mounting plate 19 slidably connected to the outer wall of the column 17. The inner wall of the mounting plate 19 has a slot.
[0031] The top end of the mounting plate 19 has a mounting groove 20, and a mounting bolt is slidably connected inside the mounting groove 20.
[0032] Specifically, by adjusting the component settings, operators can easily adjust the position according to the size of different hinges. By rotating the screw 16, it slides against the slide block 14 inside the slide table 13, thereby adjusting the position of the mounting plate 19 and improving the applicability of the device. The threaded plate 15 supports the screw 16, ensuring its stable rotation. The lifting component allows for further adjustment of the longitudinal direction of the mounting plate 19. The column 17 and its outer wall retaining ball 18 cooperate with the retaining groove in the mounting plate 19 to support the longitudinal adjustment of the mounting plate 19 and ensure the stability of the mounting plate 19 after height adjustment.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An assembly device for a hinge in a sliding door of an automobile, comprising a worktable (1), characterized in that: The bottom end of the workbench (1) is fixedly connected to a support column, and the top end of the workbench (1) is provided with an adsorption component. The adsorption assembly includes a hollow base (2) fixedly connected to the top of the workbench (1), a suction plate (3) fixedly connected to the top of the hollow base (2), a suction cup (4) slidably connected to the inner wall of the suction plate (3), and a number of suction cups (4). A rotating arm (5) is fixedly connected to the top of the workbench (1), an air pipe (6) is fixedly connected inside the rotating arm (5), an air plate (7) is fixedly connected to the end of the air pipe (6), and an adjustment assembly is provided at the top of the workbench (1).
2. The assembly device for a hinge in a sliding door of an automobile according to claim 1, characterized in that: The adsorption assembly also includes an air pump (8) fixedly connected to the top of the workbench (1). The output end of the air pump (8) is fixedly connected to a vacuum generator (10) via a hose (9). The negative pressure end of the vacuum generator (10) is fixedly connected to the side wall of the hollow seat (2) via a negative pressure pipe (11). The output end of the vacuum generator (10) is fixedly connected to the input end of the rotating arm (5) via a connecting pipe (12).
3. The assembly device for a hinge in a sliding door of an automobile according to claim 1, characterized in that: The adjustment assembly includes a slide (13) fixedly connected to the top of the worktable (1), a slide block (14) slidably connected inside the slide (13), and a lifting assembly provided at the top of the slide block (14).
4. The assembly device for a hinge in a sliding door of an automobile according to claim 3, characterized in that: The adjustment assembly also includes a threaded plate (15) fixedly connected to the top of the slide (13), and a screw (16) is threadedly connected to the inner wall of the threaded plate (15), and the end of the screw (16) is rotatably sleeved with the outer wall of the slide (14).
5. The assembly device for a hinge in a sliding door of an automobile according to claim 3, characterized in that: The lifting assembly includes a column (17) fixedly connected to the top of the slide (14), a ball (18) fixedly connected inside the column (17) by a spring, and an mounting plate (19) slidably connected to the outer wall of the column (17), with a slot provided on the inner wall of the mounting plate (19).
6. The assembly device for a hinge in a sliding door of an automobile according to claim 5, characterized in that: The mounting plate (19) has a mounting groove (20) at its top end, and a mounting bolt is slidably connected inside the mounting groove (20).