Car lamp assembling mechanical arm capable of automatically assembling screws

By designing the headlight assembly robotic arm for automatic assembly of screws, the rotating components and processing components are used to realize the automatic assembly of screws, and the assembly structure is quickly removed by fixing the assembly components, the problem of difficulty in automatically assembling screws when assembling the headlights is solved, improving assembly efficiency and reducing costs.

CN222767727UActive Publication Date: 2025-04-18CHANGCHUN TIANLONG AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Application Number
CN202420697987.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-07
Publication Date
2025-04-18
Estimated Expiration
2034-04-07

AI Technical Summary

Technical Problem

The existing robotic arms are difficult to automatically assemble screws when assembling the headlights, which affects assembly efficiency and increases costs, and it is difficult to quickly disassemble the assembly structure during maintenance, increasing maintenance costs.

Method used

A headlight assembly robot arm that automatically assembles screws is designed. The screws are automatically assembled by rotating components and machining components, and the assembly structure is quickly removed by fixing components.

Benefits of technology

Automatic screw assembly of the robotic arm when assembling the headlights is realized, which improves assembly efficiency, reduces costs, and reduces maintenance costs through rapid disassembly function.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222767727U_ABST
    Figure CN222767727U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of assembling mechanical arms, in particular to a car lamp assembling mechanical arm capable of automatically assembling screws, and solves the technical problems that when a mechanical arm is used for assembling a car lamp, the screws are difficult to automatically assemble, the car lamp assembling efficiency of the mechanical arm is easy to influence, the car lamp assembling cost is increased, and the assembling structure needs to be maintained. The assembly structure is difficult to quickly disassemble from the mechanical arm, and the maintenance cost of the assembly structure is easily influenced; according to the technical scheme, the car lamp assembling mechanical arm capable of automatically assembling the screws comprises a mounting assembly, a rotating assembly, an auxiliary assembly, a movable assembly, a fixed assembly and a machining assembly; by means of the rotating assembly and the machining assembly, the mechanical arm can automatically assemble screws, so that the efficiency of assembling a car lamp through the mechanical arm can be improved, an assembling structure can be quickly disassembled from the mechanical arm through the fixing assembly, and the maintenance cost of the assembling assembly can be reduced.
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Description

Technical Field

[0001] The utility model belongs to the field of assembly mechanical arms, and in particular relates to an assembly mechanical arm for a vehicle lamp which can automatically assemble screws. Background Art

[0002] A robotic arm refers to a complex system with high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it is widely used in fields such as industrial assembly. When assembling car lights, it is often necessary to assemble the car lights and the base with screws, so that the car lights are installed on the base. However, most existing robotic arms can only perform picking and fixing functions, and it is difficult to automatically assemble screws when assembling car lights.

[0003] However, when existing robotic arms are assembling car lights, it is difficult to automatically assemble screws, which can easily affect the efficiency of the robotic arms in assembling car lights, thereby increasing the cost of assembling car lights. When the assembly structure needs to be maintained, it is difficult to quickly disassemble the assembly structure from the robotic arm, which can easily affect the maintenance cost of the assembly structure.

[0004] Therefore, in order to address the problem that the above-mentioned robotic arm has difficulty in automatically assembling screws when assembling car lights, which may easily affect the efficiency of the robotic arm in assembling car lights and thus increase the cost of assembling car lights, and when the assembly structure needs to be maintained, it is difficult to quickly disassemble the assembly structure from the robotic arm, which may easily affect the maintenance cost of the assembly structure, a car light assembly robotic arm that can automatically assemble screws has been developed. By rotating components and processing components, the robotic arm can automatically assemble screws, thereby improving the efficiency of the robotic arm in assembling car lights, and by fixing components, the assembly structure can be quickly disassembled from the robotic arm, thereby reducing the maintenance cost of the assembly components. Utility Model Content

[0005] In order to overcome the problem that it is difficult for the robotic arm to automatically assemble screws when assembling car lights, which may easily affect the efficiency of the robotic arm in assembling car lights and thus increase the cost of assembling car lights, when the assembly structure needs to be maintained, it is difficult to quickly disassemble the assembly structure from the robotic arm, which may easily affect the maintenance cost of the assembly structure.

[0006] The technical solution of the utility model is: a headlight assembly robot arm for automatically assembling screws, including an installation component, a rotating component, an auxiliary component, a movable component, a fixed component and a processing component. The upper end of the installation component is fixedly connected to a rotating component for rotating and adjusting the robot arm, the upper end of the rotating component is provided with an auxiliary component for assisting the rotating component to rotate, the auxiliary component is provided with a movable component for movably assembling screws, the movable component is provided with a fixed component for fixing the processing component, and the fixed component is provided with a processing component for assembling screws.

[0007] Preferably, through the rotating component and the processing component, the first electric cylinder can be used to drive the first robotic arm to rotate, and the screw can be limited and fixed by cooperating with the fixing ring, and then the second electric cylinder is used to drive the electric screwdriver to install the limited and fixed screw on the car light and tighten it, so as to realize the function of automatic assembly of screws, thereby improving the efficiency of the robotic arm in assembling the car light, and through the fixing component, the first bolt is removed from the second screw groove and the inner wall of the first screw groove, so that the fixing block can be quickly removed from the third robotic arm, thereby reducing the maintenance cost of the assembly component.

[0008] Preferably, the mounting assembly includes a mounting plate and a mounting slot. The mounting slots are formed through the four corner edges of the upper end of the mounting plate. During installation, bolts can be passed through the mounting slots, so that the mounting plate can be quickly fixed on the workbench.

[0009] Preferably, the rotating assembly includes a supporting platform, a first groove body, a first electric cylinder, a rack, a second groove body and a supporting groove. The upper end of the mounting plate is fixedly connected to the supporting platform, the front and rear ends of the supporting platform are penetrated by the first groove body, the upper end of the supporting platform is fixedly provided with a supporting groove, the left end inner wall of the supporting groove is penetrated by the second groove body, the first electric cylinder is fixedly connected to the front end of the supporting platform, the rear end of the telescopic rod of the first electric cylinder is fixedly connected to the rack, the outer wall of the rack is in contact with the inner wall of the first groove body, when in use, the first electric cylinder is started, and the telescopic rod of the first electric cylinder drives the rack to move along the inner wall of the first groove body, thereby driving the gear and the connecting shaft to rotate.

[0010] Preferably, the auxiliary component includes a first mechanical arm, a connecting shaft, a gear, an auxiliary table and a third slot body. The lower end of the first mechanical arm is fixedly connected to the connecting shaft, the auxiliary table is fixedly connected to the upper end of the supporting table, and the third slot body is penetrated through the upper and lower ends of the auxiliary table. The lower end of the connecting shaft passes through the third slot body and is fixedly connected to a gear. The lower end of the gear is in contact with the inner wall of the lower end of the supporting slot, and the upper end of the gear is in contact with the lower end of the auxiliary table. The outer wall of the gear passes through the second slot body and meshes with the rack. When in use, the rotation of the connecting shaft can drive the first mechanical arm to rotate, so that the first mechanical arm rotates to the place where the screw is placed.

[0011] Preferably, the movable component includes a second mechanical arm, a third mechanical arm, a first screw groove and a first bolt. The second mechanical arm is rotatably mounted on the second mechanical arm, and the third mechanical arm is rotatably mounted on the second mechanical arm. The upper and lower ends of the third mechanical arm are penetrated by symmetrical first screw grooves, and the inner wall of the first screw groove is threadedly mounted with a first bolt. When in use, the first mechanical arm is rotated so that the third mechanical arm is directly above the car light, and the first mechanical arm, the second mechanical arm and the third mechanical arm are controlled so that the screws on the inner wall of the fixing ring correspond to the screw grooves on the car light.

[0012] Preferably, the fixing assembly includes a fixing block, a second screw groove, a limiting block, a fourth slot body, an electric screwdriver and a second electric cylinder. The upper end of the fixing block fits with the lower end of the third mechanical arm, and the second screw groove is penetrated at the four corner edges of the upper end of the fixing block. The first bolt passes through the first screw groove and is threadedly installed on the inner wall of the second screw groove. A symmetrical limiting block is fixedly connected to the lower end of the fixing block, and a fourth slot body is fixedly opened at the lower end of the fixing block. The inner wall of the fourth slot body is fixedly connected to the second electric cylinder, and the lower end of the telescopic rod of the second electric cylinder is fixedly connected to the electric screwdriver. The outer wall of the electric screwdriver fits with the outer wall of the limiting block. When in use, the second electric cylinder is started, and the telescopic rod of the second electric cylinder can drive the electric screwdriver to slide along the inner wall of the limiting block.

[0013] Preferably, the processing component includes an assembly ring, a fixing ring, an elastic rubber and a fifth groove body, the lower end of the limit block is fixedly connected to the assembly ring, the upper and lower ends of the assembly ring are penetrated by a fifth groove body, the inner wall of the fifth groove body is fixedly connected to the fixing ring, and the inner wall of the fixing ring is fixedly connected to the elastic rubber distributed evenly. When in use, the telescopic rod of the second electric cylinder can drive the electric screwdriver to slide along the inner wall of the limit block, so that the lower end of the electric screwdriver can push the screw out of the inner wall of the elastic rubber, and then the screw is installed on the inner wall of the screw groove by the electric screwdriver, thereby completing the automatic assembly of the screw.

[0014] Beneficial effects of the utility model:

[0015] 1. By rotating the assembly and processing the assembly, the first electric cylinder can be used to drive the first mechanical arm to rotate, and the screw can be limited and fixed by cooperating with the fixing ring. Then the second electric cylinder is used to drive the electric screwdriver to install the limited and fixed screw on the headlight and tighten it, so as to realize the function of automatic assembly of screws, thereby improving the efficiency of the mechanical arm in assembling the headlight. By fixing the assembly, the first bolt is taken out from the second screw groove and the inner wall of the first screw groove, so that the fixing block can be quickly disassembled from the third mechanical arm, thereby reducing the maintenance cost of the assembly assembly.

[0016] 2. By fixing the assembly, the first bolt is taken out from the second screw groove and the inner wall of the first screw groove, and then the fixing block is removed from the lower end of the third mechanical arm, so that the electric screwdriver and the second electric cylinder can be maintained, thereby effectively reducing the maintenance cost.

[0017] 3. The rack moves along the inner wall of the first slot body to provide a certain stability for the rack, and the outer wall of the gear can pass through the second slot body, so that it can be better transmitted with the rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure diagram of a headlight assembly mechanical arm for automatically assembling screws according to the utility model is shown;

[0019] Figure 2 The present invention shows a schematic diagram of the three-dimensional structure of the installation assembly of a headlight assembly robot arm for automatically assembling screws;

[0020] Figure 3 The present invention shows a schematic diagram of the three-dimensional structure of a rotating assembly of a headlight assembly robot arm for automatically assembling screws;

[0021] Figure 4 The present invention shows a schematic diagram of the three-dimensional structure of the auxiliary components of a headlight assembly robot arm for automatically assembling screws;

[0022] Figure 5 The present invention shows a schematic diagram of the three-dimensional structure of the fixed component and the movable component of a headlight assembly robot arm for automatically assembling screws;

[0023] Figure 6 Shown is a schematic diagram of the three-dimensional structure disassembly of a processing component and a movable component of a headlight assembly robot arm for automatically assembling screws according to the utility model.

[0024] Explanation of the accompanying drawings: 1-installation component, 101-installation plate, 102-installation groove, 2-rotation component, 201-carrying platform, 202-first groove body, 203-first electric cylinder, 204-rack, 205-second groove body, 206-carrying groove, 3-auxiliary component, 301-first mechanical arm, 302-connecting shaft, 303-gear, 304-auxiliary platform, 305-third groove body, 4-movable component, 401-second mechanical arm, 402-third mechanical arm, 403-first screw groove, 404-first bolt, 5-fixing component, 501-fixing block, 502-second screw groove, 503-limiting block, 504-fourth groove body, 505-electric screwdriver, 506-second electric cylinder, 6-processing component, 601-assembly ring, 602-fixing ring, 603-elastic rubber, 604-fifth groove body. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1The utility model provides an embodiment: a headlight assembly robot arm for automatically assembling screws, comprising an installation component 1, a rotating component 2, an auxiliary component 3, a movable component 4, a fixed component 5 and a processing component 6. The upper end of the installation component 1 is fixedly connected with a rotating component 2 for rotating and adjusting the robot arm, the upper end of the rotating component 2 is provided with an auxiliary component 3 for assisting the rotating component 2 to rotate, the auxiliary component 3 is provided with a movable component 4 for movably assembling screws, the movable component 4 is provided with a fixed component 5 for fixing the processing component 6, and the fixed component 5 is provided with a processing component 6 for assembling screws. Component 2 and processing component 6, the first electric cylinder 203 can be used to drive the first mechanical arm 301 to rotate, and the fixing ring 602 can be used to limit the screws and fix them. The second electric cylinder 506 is then used to drive the electric screwdriver 505 to install the limited and fixed screws on the headlights and tighten them, thereby realizing the function of automatic assembly of screws, thereby improving the efficiency of the mechanical arm in assembling the headlights. Through the fixing component 5, the first bolt 404 is taken out from the inner walls of the second screw groove 502 and the first screw groove 403, so that the fixing block 501 can be quickly removed from the third mechanical arm 402, thereby reducing the maintenance cost of the assembly components.

[0027] See also Figure 2-3 In this embodiment, the mounting assembly 1 includes a mounting plate 101 and a mounting groove 102. The mounting grooves 102 are formed at the four corners of the upper end of the mounting plate 101. During installation, bolts can be passed through the mounting grooves 102, so that the mounting plate 101 can be quickly fixed on the workbench. The rotating assembly 2 includes a bearing platform 201, a first groove body 202, a first electric cylinder 203, a rack 204, a second groove body 205 and a bearing groove 206. The upper end of the mounting plate 101 is fixedly connected to the bearing platform 201. The first groove body is formed at the front and rear ends of the bearing platform 201. 202, a bearing groove 206 is fixedly opened at the upper end of the bearing platform 201, and a second groove body 205 is penetrated through the inner wall of the left end of the bearing groove 206. The first electric cylinder 203 is fixedly connected to the front end of the bearing platform 201, and the rear end of the telescopic rod of the first electric cylinder 203 is fixedly connected to the rack 204, and the outer wall of the rack 204 is in contact with the inner wall of the first groove body 202. When in use, the first electric cylinder 203 is started, and the telescopic rod of the first electric cylinder 203 drives the rack 204 to move along the inner wall of the first groove body 202, thereby driving the gear 303 and the connecting shaft 302 to rotate.

[0028] See also Figure 3-4In this embodiment, the auxiliary component 3 includes a first mechanical arm 301, a connecting shaft 302, a gear 303, an auxiliary platform 304 and a third slot body 305. The lower end of the first mechanical arm 301 is fixedly connected to the connecting shaft 302, the auxiliary platform 304 is fixedly connected to the upper end of the supporting platform 201, and the upper and lower ends of the auxiliary platform 304 are penetrated by the third slot body 305. The lower end of the connecting shaft 302 passes through the third slot body 305 and is fixedly connected with a gear 303. The lower end of the gear 303 is in contact with the inner wall of the lower end of the supporting slot 206, and the upper end of the gear 303 is in contact with the lower end of the auxiliary platform 304. The outer wall of the gear 303 passes through the second slot body 205 and meshes with the rack 204. When in use, the rotation of the connecting shaft 302 can drive the first mechanical arm 301 to rotate, so that the first mechanical arm 301 rotates to the place where the screw is placed.

[0029] See also Figure 4-5 In this embodiment, the movable component 4 includes a second mechanical arm 401, a third mechanical arm 402, a first screw groove 403 and a first bolt 404. The second mechanical arm 401 is rotatably mounted on the second mechanical arm 401, and the third mechanical arm 402 is rotatably mounted on the second mechanical arm 401. The upper and lower ends of the third mechanical arm 402 are penetrated by symmetrical first screw grooves 403, and the inner wall of the first screw groove 403 is threadedly mounted with the first bolt 404. When in use, the first mechanical arm 301 is rotated so that the third mechanical arm 402 is directly above the headlight, and the first mechanical arm 301, the second mechanical arm 401 and the third mechanical arm 402 are controlled so that the screws on the inner wall of the fixing ring 602 correspond to the screw grooves on the headlight.

[0030] See also Figure 5-6In this embodiment, the fixing assembly 5 includes a fixing block 501, a second screw groove 502, a limiting block 503, a fourth slot body 504, an electric screwdriver 505 and a second electric cylinder 506. The upper end of the fixing block 501 is in contact with the lower end of the third mechanical arm 402. The second screw groove 502 is penetrated through the four corners of the upper end of the fixing block 501. The first bolt 404 passes through the first screw groove 403 and is threadedly installed on the inner wall of the second screw groove 502. A symmetrical limiting block 503 is fixedly connected to the lower end of the fixing block 501. A fourth slot body 504 is fixedly opened at the lower end of the fixing block 501. The inner wall of the fourth slot body 504 is fixedly connected to the second electric cylinder 506. The lower end of the telescopic rod of the second electric cylinder 506 is fixedly connected to the electric screwdriver 505. The outer wall of the electric screwdriver 505 is in contact with the outer wall of the limiting block 503. When in use, the second electric Cylinder 506, the telescopic rod of the second electric cylinder 506 can drive the electric screwdriver 505 to slide along the inner wall of the limit block 503, the processing component 6 includes an assembly ring 601, a fixing ring 602, an elastic rubber 603 and a fifth groove 604, the lower end of the limit block 503 is fixedly connected with the assembly ring 601, the upper and lower ends of the assembly ring 601 are penetrated with a fifth groove 604, the inner wall of the fifth groove 604 is fixedly connected with a fixing ring 602, and the inner wall of the fixing ring 602 is fixedly connected with uniformly distributed elastic rubber 603. When in use, the telescopic rod of the second electric cylinder 506 can drive the electric screwdriver 505 to slide along the inner wall of the limit block 503, so that the lower end of the electric screwdriver 505 can push the screw out of the inner wall of the elastic rubber 603, and then the electric screwdriver 505 is used to install the screw on the inner wall of the screw groove, thereby completing the automatic assembly of the screw.

[0031] When working, first install the mounting plate 101 on the workbench by bolts, then start the first mechanical arm 301 and the second mechanical arm 401 to adjust the third mechanical arm 402 to a suitable position, then fit the upper end of the fixing block 501 with the lower end of the third mechanical arm 402, and then pass the first bolt 404 through the first screw groove 403 and screw it on the inner wall of the second screw groove 502, so that the fixing block 501 can be fixed to the lower end of the third mechanical arm 402, thereby completing the installation work;

[0032] When in use, the first electric cylinder 203 is started, and the telescopic rod of the first electric cylinder 203 drives the rack 204 to move along the inner wall of the first slot body 202, so that the gear 303 and the connecting shaft 302 can be driven to rotate. The rotation of the connecting shaft 302 can drive the first mechanical arm 301 to rotate, so that the first mechanical arm 301 is rotated to the place where the screw is placed, and the first mechanical arm 301, the second mechanical arm 401 and the third mechanical arm 402 are started, so that the assembly ring 601 is located directly above the screw, and the fixing ring 602 is aligned with the screw, so that the outer wall of the elastic rubber 603 on the inner wall of the fixing ring 602 is in contact with the screw, so that the screw can be limited and fixed on the inner wall of the fixing ring 602;

[0033] Next, the first mechanical arm 301 is continuously rotated to make the third mechanical arm 402 be located directly above the headlight, and the first mechanical arm 301, the second mechanical arm 401 and the third mechanical arm 402 are controlled to make the screws on the inner wall of the fixing ring 602 correspond to the screw grooves on the headlight, and then the second electric cylinder 506 is started, and the telescopic rod of the second electric cylinder 506 can drive the electric screwdriver 505 to slide along the inner wall of the limit block 503, so that the lower end of the electric screwdriver 505 can push the screw out of the inner wall of the elastic rubber 603, and then the electric screwdriver 505 can install the screw on the inner wall of the screw groove, so that the automatic screw assembly can be completed;

[0034] When the assembly needs to be maintained, the first bolt 404 is taken out from the inner wall of the second screw groove 502 and the first screw groove 403, and then the fixing block 501 is removed from the lower end of the third mechanical arm 402, so that the electric screwdriver 505 and the second electric cylinder 506 can be maintained, thereby reducing the maintenance cost;

[0035] During assembly, the rack 204 moves along the inner wall of the first slot body 202 to provide a certain stability for the rack 204 , and the outer wall of the gear 303 can pass through the second slot body 205 , so that it can be better transmitted with the rack 204 .

[0036] Through the above steps, the first mechanical arm 301 can be driven to rotate by the rotating component 2 and the processing component 6 using the first electric cylinder 203, and the screw can be limited and fixed by cooperating with the fixing ring 602, and then the second electric cylinder 506 is used to drive the electric screwdriver 505 to install the limited and fixed screw on the headlight and tighten it, so as to realize the function of automatic assembly of screws, thereby improving the efficiency of the mechanical arm in assembling the headlight, and the first bolt 404 is taken out from the inner wall of the second screw groove 502 and the first screw groove 403 through the fixing component 5, so that the fixing block 501 can be quickly removed from the third mechanical arm 402, thereby reducing the maintenance cost of the assembly component, and solving the problem that it is difficult for the mechanical arm to automatically assemble screws when assembling the headlight, which is easy to affect the efficiency of the mechanical arm in assembling the headlight, thereby increasing the cost of assembling the headlight, and when the assembly structure needs to be maintained, it is difficult to quickly disassemble the assembly structure from the mechanical arm, which is easy to affect the maintenance cost of the assembly structure.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A vehicle lamp assembly robot arm for automatically assembling screws, comprising an assembly assembly (1), characterized in that: The invention also comprises a rotating assembly (2), an auxiliary assembly (3), a movable assembly (4), a fixed assembly (5) and a processing assembly (6); the upper end of the mounting assembly (1) is fixedly connected to a rotating assembly (2) for rotating and adjusting a mechanical arm; the upper end of the rotating assembly (2) is provided with an auxiliary assembly (3) for assisting the rotating assembly (2) in rotating; the auxiliary assembly (3) is provided with a movable assembly (4) for movably assembling screws; the movable assembly (4) is provided with a fixed assembly (5) for fixing the processing assembly (6); and the fixed assembly (5) is provided with a processing assembly (6) for assembling screws.

2. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 1, characterized in that: The mounting assembly (1) comprises a mounting plate (101) and a mounting groove (102). The mounting grooves (102) are formed through the four corner edges of the upper end of the mounting plate (101).

3. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 1, characterized in that: The rotating assembly (2) comprises a bearing platform (201), a first slot body (202), a first electric cylinder (203), a rack (204), a second slot body (205) and a bearing slot (206); the upper end of the mounting plate (101) is fixedly connected to the bearing platform (201); the first slot body (202) is penetrated through the front and rear ends of the bearing platform (201); the bearing slot (206) is fixedly opened at the upper end of the bearing platform (201); the second slot body (205) is penetrated through the inner wall of the left end of the bearing slot (206); the first electric cylinder (203) is fixedly connected to the front end of the bearing platform (201); the rear end of the telescopic rod of the first electric cylinder (203) is fixedly connected to the rack (204); the outer wall of the rack (204) is in contact with the inner wall of the first slot body (202).

4. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 3, characterized in that: The auxiliary component (3) comprises a first mechanical arm (301), a connecting shaft (302), a gear (303), an auxiliary platform (304) and a third slot body (305). The lower end of the first mechanical arm (301) is fixedly connected to the connecting shaft (302). The auxiliary platform (304) is fixedly connected to the upper end of the bearing platform (201). The upper and lower ends of the auxiliary platform (304) are penetrated by the third slot body (305). The lower end of the connecting shaft (302) passes through the third slot body (305) and is fixedly connected to the gear (303). The lower end of the gear (303) is in contact with the inner wall of the lower end of the bearing slot (206). The upper end of the gear (303) is in contact with the lower end of the auxiliary platform (304). The outer wall of the gear (303) passes through the second slot body (205) and is meshed with the rack (204).

5. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 4, characterized in that: The movable component (4) comprises a second mechanical arm (401), a third mechanical arm (402), a first screw groove (403) and a first bolt (404); the second mechanical arm (401) is rotatably mounted on the second mechanical arm (401); the third mechanical arm (402) is rotatably mounted on the second mechanical arm (401); symmetrical first screw grooves (403) are formed through the upper and lower ends of the third mechanical arm (402); and the first bolt (404) is threadedly mounted on the inner wall of the first screw groove (403).

6. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 5, characterized in that: The fixing assembly (5) comprises a fixing block (501), a second screw groove (502), a stop block (503), a fourth slot body (504), an electric screwdriver (505) and a second electric cylinder (506). The upper end of the fixing block (501) is in contact with the lower end of the third mechanical arm (402). The second screw groove (502) is formed through the edges of the four corners of the upper end of the fixing block (501). The first bolt (404) passes through the first screw groove (403) and is threadedly installed. The fixing block (501) is mounted on the inner wall of the second screw groove (502), and a symmetrical limiting block (503) is fixedly connected to the lower end of the fixing block (501). A fourth slot body (504) is fixedly opened at the lower end of the fixing block (501). A second electric cylinder (506) is fixedly connected to the inner wall of the fourth slot body (504). An electric screwdriver (505) is fixedly connected to the lower end of the telescopic rod of the second electric cylinder (506), and the outer wall of the electric screwdriver (505) is in contact with the outer wall of the limiting block (503).

7. The vehicle lamp assembly robot arm for automatically assembling screws according to claim 6, characterized in that: The processing assembly (6) comprises an assembly ring (601), a fixing ring (602), an elastic rubber (603) and a fifth groove body (604); the lower end of the limit block (503) is fixedly connected to the assembly ring (601); the upper and lower ends of the assembly ring (601) are penetrated by a fifth groove body (604); the inner wall of the fifth groove body (604) is fixedly connected to the fixing ring (602); and the inner wall of the fixing ring (602) is fixedly connected to the elastic rubber (603) distributed evenly.