A car lamp turntable intelligent assembly device and assembly method

Abstract

This invention relates to an intelligent assembly device and method for automotive headlight turntables. The device includes a rotary drive mechanism, a turntable, a central column, an automatic feeding arm, a dispensing assembly, a gripping assembly, and a welding assembly. The automatic feeding arm is fixed to the top of the central column, and the rotary drive mechanism drives the turntable to rotate in the opposite direction to the automatic feeding arm. A flexible suction cup made of hydrogel material is installed at the end of the gripping assembly, enabling non-destructive gripping of the glass light-transmitting component. The method, through the relative rotation of the turntable and the feeding arm, sequentially completes the steps of feeding, dispensing, welding, assembly, inspection, and unloading, and integrates visual inspection and airtightness inspection functions. This invention uses a hydrogel flexible suction cup and a multi-stage air path structure to effectively avoid scratches or damage to the glass light-transmitting component during assembly, while achieving full-process online quality monitoring, significantly improving the yield rate and automation level of automotive headlight assembly.

Description

Technical Field

[0001] This invention belongs to the field of vehicle manufacturing technology, specifically relating to an intelligent assembly device and assembly method for a vehicle headlight turntable. Background Technology

[0002] As automotive lighting technology advances towards higher brightness and greater integration, glass is increasingly being used for headlight light-transmitting components to improve optical performance and weather resistance. However, while glass light-transmitting components have high surface hardness, they are also brittle. During automated assembly, they are highly susceptible to microscopic damage such as scratches and cracks caused by friction or impact during handling and transportation, leading to light distortion or even the failure of the headlight fixture.

[0003] Existing automotive lighting assembly devices, such as those described in prior art CN203712268U, mostly employ a rotary table structure in conjunction with a welding machine to achieve semi-automatic assembly. However, their gripping devices are often rigid claws or ordinary rubber suction cups, which cannot meet the requirements for non-destructive gripping of glass light-transmitting components. Furthermore, existing devices generally lack online quality inspection capabilities; key indicators such as post-weld sealing and the alignment accuracy of the light-transmitting components cannot be monitored in real time, leading to defective products flowing into subsequent processes and increasing rework costs. Therefore, there is an urgent need for an intelligent assembly system that can both protect the surface of the glass light-transmitting components and achieve end-to-end quality monitoring. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides an intelligent assembly device and assembly method for a vehicle headlight turntable.

[0005] An intelligent assembly device for a vehicle headlight turntable includes: a rotary drive mechanism; a turntable connected to the output end of the rotary drive mechanism, wherein at least one headlight fixture is circumferentially arranged on the turntable; a central column connected to the other output end of the rotary drive mechanism and driven by the rotary drive mechanism to rotate in the opposite direction to the turntable; an automatic feeding arm fixed to the top of the central column, the automatic feeding arm including at least one feeding arm; a dispensing assembly, a gripping assembly, and a welding assembly, which are slidably connected to different feeding arms; wherein a flexible suction cup is installed at the end of the gripping assembly, the flexible suction cup including a main tube, multiple branch tubes connected to the main tube, and multiple capillaries disposed within the suction cup, each branch tube being connected to multiple capillaries, and the suction cup being made of hydrogel material.

[0006] Furthermore, three automotive light fixtures are evenly arranged on the turntable, and the automatic feeding arm includes a first feeding arm, a second feeding arm, and a third feeding arm, with an included angle of 120° between adjacent feeding arms; the rotary drive mechanism drives the turntable to rotate 60° each time, and drives the automatic feeding arm to rotate 60° each time, and the two rotate in opposite directions.

[0007] Furthermore, the dispensing assembly is slidably connected to the first feeding arm, the gripping assembly is slidably connected to the second feeding arm, and the welding assembly is slidably connected to the third feeding arm; each feeding arm is provided with a rack-equipped groove, and each assembly engages with the rack through a sliding block with a driven gear, and is driven by a drive motor through a drive gear to achieve horizontal movement.

[0008] Furthermore, the components are connected by hydraulic rods to achieve vertical lifting.

[0009] Furthermore, a soft buffer pad is embedded in the positioning groove of the vehicle lamp fixture to further protect the vehicle lamp assembly.

[0010] Furthermore, it also includes a visual inspection mechanism and an airtightness inspection mechanism located radially on the turntable for real-time monitoring of assembly quality.

[0011] Furthermore, the suction cup is flat and concave in the center to better fit the curved surface.

[0012] A method for intelligent assembly of a vehicle headlight turntable, using any of the above-mentioned devices, includes the following steps: S1. Loading step: The rotary drive mechanism drives the turntable and the automatic loading arm to rotate relative to each other. When the gripping component is located at the loading station, the gripping component uses the flexible suction cup to grip the vehicle light component without damage and place it on the vehicle light station fixture. S2. Dispensing Step: The turntable rotates to transport the fixture carrying the vehicle light assembly to the dispensing station. At the same time, the automatic feeding arm rotates relative to the turntable, so that the dispensing assembly is located above the dispensing station, and the vehicle light assembly is dispensed with glue. S3. Welding Step: The turntable continues to rotate, transporting the glued headlight assembly to the welding station. At the same time, the automatic feeding arm rotates relative to the welding station, positioning the welding assembly above the welding station for welding and fixing the headlight assembly. S4. Assembly Steps: The turntable continues to rotate, transporting the welded headlight assembly to the assembly station. At the same time, the automatic feeding arm rotates relative to the headlight assembly, positioning the gripping component above the assembly station to assemble other accessories with the headlight assembly. S5. Inspection Steps: The turntable continues to rotate, transporting the assembled vehicle lights to the inspection station, where the vehicle lights undergo quality inspection by a visual inspection mechanism and an airtightness inspection mechanism. S6. Unloading Step: The turntable continues to rotate, transporting the inspected car lights to the unloading station, and separating qualified and unqualified products according to the inspection results.

[0013] Furthermore, step S5 specifically includes: a visual inspection mechanism photographing the vehicle headlight to determine the offset of the light-transmitting component and the state of the adhesive; an airtightness inspection mechanism inflating the inside of the vehicle headlight, detecting the pressure decay, and determining the sealing performance; and transmitting the inspection results to the PLC controller in real time.

[0014] Furthermore, step S6 specifically includes: the PLC controller controlling the material discharge based on the detection results; qualified products being pushed to the conveyor belt by the discharge pusher; and unqualified products falling into the collection box through the defective product discharge channel.

[0015] Compared with the prior art, the present invention has the following advantages: 1) Non-destructive gripping: The flexible suction cup made of hydrogel material, combined with the negative pressure system of multi-level capillary structure, can achieve flexible contact and uniform adsorption of the parts to be gripped (especially glass light-transmitting parts), effectively avoiding scratches and stress concentration, and achieving non-destructive assembly.

[0016] 2) High precision and high flexibility: With a relatively rotatable turntable and automatic feeding arm, as well as horizontally and vertically movable dispensing, welding and gripping components, it can flexibly adapt to the assembly needs of different specifications of vehicle lights and has high positioning accuracy.

[0017] 3) Full-process quality monitoring: It integrates visual inspection and airtightness inspection mechanisms, which can immediately perform online inspection of key quality indicators after assembly, realize closed-loop control, and prevent defective products from flowing out.

[0018] 4) High efficiency: The multi-station turntable structure allows for parallel processing of feeding, gluing, welding, assembly, inspection, and unloading, greatly improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional diagram of the intelligent assembly device for the vehicle headlight turntable of the present invention; Figure 2 This is a schematic diagram of the intelligent assembly device for the vehicle headlight turntable of the present invention. Figure 3 This is a schematic diagram of the hydrogel suction cup structure of the present invention; In the diagram: 1. Rotary drive mechanism; 2. Central column; 3. Turntable; 4. Headlight fixture; 5. Automatic feeding arm; 51. First feeding arm; 52. Second feeding arm; 53. Third feeding arm; 6. Drive motor; 61. First motor; 62. Second motor; 63. Third motor; 71. Dispensing assembly; 81. Welding assembly; 91. Gripping assembly; 911. Main pipe; 912. Branch pipe; 913. Capillary tube; 913. Suction cup; 10. Slide. Detailed Implementation

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the innovative points and general methods of the present invention. The embodiments described are only used to explain the present invention and should not be regarded as a limitation on the scope of protection of the present invention. Example

[0021] like Figures 1 to 3 As shown in the figure, this embodiment provides an intelligent assembly device for a vehicle headlight turntable.

[0022] One end of the rotary drive mechanism 1 is fixed to the turntable 3 via a bearing. The bottom of the turntable 3 is equipped with a rotating disk, which controls the rotation of the turntable 3. The output shaft of the rotary drive mechanism is connected to the central column 2, which controls the central column to rotate in the opposite direction to the rotation of the turntable 3.

[0023] Three automotive light fixtures 4 are evenly mounted circumferentially on the turntable 3. Each fixture 4 has a soft cushioning pad (made of silicone, not shown in the figure) embedded in its positioning groove. The turntable 3 is driven to rotate 60° each time, which is clockwise in the top view. It passes through the loading station A, dispensing station B, welding station C, assembly station D, inspection station E, and unloading station F in sequence (the rotation angle between loading station A and dispensing station B, between dispensing station B and welding station C, and between welding station C and assembly station D is 60°).

[0024] The top of the central column 2 is fixedly connected to the automatic feeding arm 5. The automatic feeding arm 5 includes: a first feeding arm 51, a second feeding arm 52, and a third feeding arm 53. The included angle between adjacent feeding arms is 120°. The rotary drive mechanism 1 drives the automatic feeding arm 5 to rotate 60° each time, which is counterclockwise when viewed from above.

[0025] The first feeding arm 51 is slidably connected to the dispensing assembly 71, the second feeding arm 52 is slidably connected to the gripping assembly 91, and the third feeding arm 53 is slidably connected to the welding assembly 81. A chute 10 is provided inside the first / second / third feeding arm, and annular racks are fixed on both sides of the inner wall of the chute 10. A sliding block is provided on the top of the dispensing assembly 71, the gripping assembly 91, and the welding assembly 81. A driven gear is provided on one side of the sliding block, and the driven gear meshes with the rack. A driving gear is provided on the output shaft of the drive motor 6, and the driving gear meshes with the rack. Under the drive of the drive motor 6, the dispensing assembly 71, the gripping assembly 91, and the welding assembly 81 can all move horizontally along the chute 10.

[0026] When the horizontal projection of the second loading arm 52 coincides with the horizontal projection of the loading station A, the gripping component 91 can grip the headlight assembly and place it on the station fixture 4 (the station fixture 4 can be reversed) when loading begins. When the automatic loading arm 5 rotates 180°, the horizontal projection of the second loading arm 52 coincides with the horizontal projection of the assembly station D. At this time, the gripping component 91 assembles the dispensing and welding headlights with other accessories.

[0027] Based on this, the sliding blocks of the dispensing assembly 71, gripping assembly 91, and welding assembly 81 are all connected to hydraulic rods (including the first hydraulic rod, the second hydraulic rod, and the third hydraulic rod). The height of the dispensing assembly 71, gripping assembly 91, and welding assembly 81 can be adjusted by the hydraulic rods. The operating positions of the dispensing assembly 71, gripping assembly 91, and welding assembly 81 can be adjusted by the horizontal movement of the sliding blocks and the vertical lifting of the hydraulic rods, so as to adapt to the assembly operation of vehicle lights with different specifications and different edge shapes.

[0028] One of the core improvements of this invention lies in the end effector of the gripping component 91. In addition to being able to mount a traditional robotic arm, this end effector also mounts a flexible suction cup, which can be automatically switched between with the robotic arm via a PLC controller. The flexible suction cup includes a main pipe 911, branch pipes 912, capillary tubes 913, and a suction cup 913 (for clarity, it is recommended to name the end suction cup "suction cup body," but here we will use the customer's designation). A main pipe 911 connects to multiple branch pipes 912 arranged in an octopus-like pattern, with the branch pipes 912 evenly distributed along the back side of the suction cup 913 (i.e., the side opposite to the gripping surface). Each branch pipe 912 is also connected to multiple capillary tubes 913 embedded inside the suction cup 913. This multi-stage distributed airflow structure of "main pipe-branch pipe-capillary tube" allows for a more uniform distribution of negative pressure on the suction surface of the suction cup 913.

[0029] The suction cup 913 is entirely made of hydrogel material. Hydrogel has extremely high flexibility and hydrophilicity, and its surface can form a good adhesion with materials such as glass. It also has self-lubricating properties, greatly reducing the coefficient of friction. The suction cup 913 is preferably designed as a flat cone shape with a concave central area. Under negative pressure, this shape allows the edge of the suction cup to preferentially contact the workpiece surface, and then gradually adhere inwards, effectively expelling air and forming a stable adsorption force. Simultaneously, during positioning, it can automatically conform to the curved surfaces of components such as glass covers without causing scratches or stress concentration.

[0030] When turntable 3 rotates to dispensing station B, the dispensing head is controlled to descend and dispense adhesive to seal the lamp housing assembly on turntable dispensing station B.

[0031] When the turntable 3 rotates to the welding station C, the ultrasonic welding head 81 is controlled to descend, pressing and welding the light-transmitting component to the housing.

[0032] When turntable 3 rotates to inspection station E, a vision inspection mechanism (high-resolution CCD camera with ring light source) set in the radial direction of turntable 3 takes pictures of the welded and assembled car lamp to determine the offset of the light-transmitting parts and the state of the glue; an airtightness inspection mechanism set in the radial direction of turntable 3 fills the inside of the car lamp with gas, detects the pressure decay, and determines the sealing of the car lamp assembly. The inspection results are transmitted to the PLC controller in real time.

[0033] When turntable 3 rotates to the discharge station F, the PLC controller, based on the detection feedback, pushes qualified products onto the conveyor belt by the discharge push rod set radially on turntable 3, while unqualified products fall into the collection box through the defective product discharge channel (such as setting a hole on the side of turntable 3 located at discharge station F). Example

[0034] This embodiment provides an intelligent assembly method for vehicle headlight turntables, which employs the intelligent assembly device for vehicle headlight turntables as described in Embodiment 1. This method achieves efficient, high-quality, and fully automated assembly of vehicle headlights through precise control of the relative rotation of the turntable and the automatic feeding arm, the composite movement of each component, and online detection. Specifically, it includes the following steps: S1. Loading steps: The system starts, and the PLC controller controls the rotary drive mechanism 1 to operate. The rotary drive mechanism 1 drives the turntable 3 to rotate clockwise, and simultaneously drives the central column 2 and the automatic feeding arm 5 fixed on it to rotate counterclockwise. Precise positioning is achieved through an encoder or sensor. When the horizontal projection of the second feeding arm 52 (i.e., the feeding arm equipped with the gripping component 91) coincides with the horizontal projection of the feeding station A, the turntable 3 and the automatic feeding arm 5 stop rotating. At this time, the gripping component 91, driven by the drive motor 62 and the second hydraulic rod, moves horizontally and descends to the feeder position. The flexible suction cup at the end of the gripping component 91 applies a uniform negative pressure through its main pipe 911, branch pipe 912, and capillary tube 913. The suction cup 913, made of hydrogel, flexibly contacts and adsorbs the surface of the headlight glass or housing. The gripping component 91 lifts the workpiece and moves it above the empty headlight fixture 4 already located at the feeding station A, placing the workpiece undamaged on the fixture 4. The soft cushioning pad inside the fixture 4 provides auxiliary protection. Subsequently, the gripping component 91 resets, and the flexible suction cup releases the negative pressure.

[0035] S2. Dispensing steps: The rotary drive mechanism 1 actuates again, driving the turntable 3 to rotate 60° clockwise and simultaneously driving the automatic loading arm 5 to rotate 60° counterclockwise. This action moves the fixture 4 carrying the headlight housing from the loading station A to the dispensing station B; simultaneously, it moves the first loading arm 51 (i.e., the loading arm with the dispensing assembly 71 installed) from its initial position to directly above the dispensing station B. After positioning, the dispensing assembly 71, driven by the first motor 61 and the first hydraulic rod, moves horizontally and descends to the preset dispensing starting point. The dispensing assembly 71 precisely extrudes adhesive according to a preset trajectory (such as a rectangular or circular trajectory along the edge of the housing). After dispensing is completed, the dispensing assembly 71 resets.

[0036] S3. Welding steps: The rotary drive mechanism 1 drives the turntable 3 and the automatic feeding arm 5 to rotate 60° each. At this time, the station fixture 4, carrying the dispensing housing, is sent to the welding station C; simultaneously, the third feeding arm 53 (i.e., the feeding arm with the welding assembly 81 installed) moves to directly above the welding station C. Driven by the third motor 63 and the third hydraulic rod, the welding assembly 81 descends and presses against the glass light-transmitting element placed on the housing. The welding assembly 81 (preferably an ultrasonic welding machine) is activated, generating high-frequency vibrations that cause the contact surface between the light-transmitting element and the housing to melt and solidify instantaneously, completing the welding. After welding is completed, the welding assembly 81 is reset.

[0037] S4. Assembly steps: The rotary drive mechanism 1 continues to drive the turntable 3 and the automatic feeding arm 5 to rotate 60° each. The welded headlight body assembly is sent to assembly station D; simultaneously, the second feeding arm 52 (i.e., the feeding arm equipped with the gripping assembly 91) moves again to directly above assembly station D. The gripping assembly 91 actuates again, non-destructively gripping other accessories such as sealing rings, decorative frames, or optical components from the accessory feeder, and precisely assembling them into the corresponding positions on the headlight body. After assembly, the gripping assembly 91 resets.

[0038] S5. Testing steps: The rotary drive mechanism 1 continues to drive the turntable 3 and the automatic feeding arm 5 to rotate 60° each. The assembled headlights are then sent to the inspection station E. At this time, the visual inspection mechanism and the airtightness inspection mechanism, which are located radially on the turntable 3, are activated simultaneously.

[0039] Visual inspection: A high-resolution CCD camera, in conjunction with a ring light source, captures images of the finished headlight from multiple angles. The image processing module in the PLC controller analyzes the images to determine whether the positional offset of the glass light-transmitting component relative to the housing is within the allowable tolerance range, and whether the glue line formed by dispensing is continuous, or whether there are any glue breaks or overflows.

[0040] Air tightness test: The air tightness testing mechanism's inflation head automatically extends and seals with the test port or vent on the headlight, filling the headlight with clean air or nitrogen at a predetermined pressure. Then, the valve is closed, and a high-precision pressure sensor monitors the amount of pressure decay within a set time. The PLC controller compares the decay amount with a preset pass threshold to determine whether the overall sealing performance of the headlight meets the standard.

[0041] All test results (pass / fail, and specific offset, pressure attenuation value, etc.) are transmitted and stored in the PLC controller in real time and bound to the headlight ID (such as the serial number obtained by the barcode scanner) on the current workstation fixture 4.

[0042] S6. Discharge Steps: The rotary drive mechanism 1 drives the turntable 3 and the automatic feeding arm 5 to rotate 60° each for the last time. The inspected automotive lights are then sent to the unloading station F. The PLC controller executes the following diversion operation based on the previously stored inspection results for this station: If the test result is determined to be qualified: the PLC controller sends a signal to the solenoid valve of the discharge push rod set radially on the turntable 3, the discharge push rod extends quickly, and pushes the finished product smoothly from the headlight fixture 4 to the discharge conveyor belt located outside the turntable 3. The conveyor belt then sends the qualified product to the next process or packaging stage.

[0043] If the inspection result determines the product to be defective (whether due to visual inspection failure or airtightness inspection failure): the PLC controller does not send a signal to the discharge pusher, or sends a signal to another defective product discharge mechanism. The turntable 3 continues to move slightly or uses gravity to cause the defective product to slide off the fixture 4 at the headlight station or fall into the defective product discharge channel (such as a chute or opening) located on one side of the discharge station F, eventually falling into the collection box. Simultaneously, the PLC controller can record the ID and specific defect type of the defective product for subsequent quality analysis.

[0044] At this point, a complete headlight assembly cycle is finished. Subsequently, the turntable 3 and the automatic loading arm 5 can continue to rotate, entering the next work cycle to assemble the next headlight component. Due to the existence of multiple workstations (three fixtures 4), the above steps S1 to S6 overlap and run in parallel in time. That is, after the turntable 3 rotates once, the workpieces at all workstations simultaneously enter the next process, thereby achieving extremely high assembly efficiency.

[0045] Those skilled in the art should understand that the above embodiments are merely descriptions of the optimal implementation scheme of the present invention and are not limited to the above technical solutions. Other technical solutions formed by arbitrarily combining the above technical features or their equivalent features without departing from the basic concept of the present invention, such as technical solutions formed by replacing the above technical features with technical features with similar functions invented in the present invention, are also possible. The scope of protection of the present invention is determined by the technical solutions covered by the claims.

Claims

1. A car lamp turntable intelligent assembly device, characterized in that, include: Rotary drive mechanism (1); Turntable (3) is connected to the output end of the rotary drive mechanism (1), and at least one vehicle lamp fixture (4) is provided on the turntable (3) along the circumferential direction. The central column (2) is connected to the other output end of the rotary drive mechanism (1) and is driven by the rotary drive mechanism (1) to rotate in the opposite direction to the turntable (3); An automatic feeding arm (5) is fixed to the top of the central column (2), and the automatic feeding arm (5) includes at least one feeding arm; The dispensing assembly (71), the gripping assembly (91), and the welding assembly (81) are slidably connected to different loading arms, respectively; The gripping component (91) is equipped with a flexible suction cup at its end. The flexible suction cup includes a main tube (911), multiple branch tubes (912) connected to the main tube (911), and multiple capillaries (913) disposed in the suction cup (913). Each branch tube (912) is connected to multiple capillaries (913). The suction cup (913) is made of hydrogel material.

2. The car lamp turntable intelligent assembly device according to claim 1, characterized in that, Three vehicle light fixtures (4) are evenly arranged on the turntable (3). The automatic feeding arm (5) includes a first feeding arm (51), a second feeding arm (52) and a third feeding arm (53). The included angle between adjacent feeding arms is 120°. The rotary drive mechanism (1) drives the turntable (3) to rotate 60° each time, and drives the automatic feeding arm (5) to rotate 60° each time, and the two rotate in opposite directions.

3. The intelligent assembly device for the vehicle headlight turntable according to claim 2, characterized in that, The dispensing assembly (71) is slidably connected to the first feeding arm (51), the gripping assembly (91) is slidably connected to the second feeding arm (52), and the welding assembly (81) is slidably connected to the third feeding arm (53). The first feeding arm (51), the second feeding arm (52), and the third feeding arm (53) are all provided with a sliding groove (10), and the inner wall of the sliding groove (10) is provided with a rack; the top of the dispensing component (71), the gripping component (91), and the welding component (81) are all provided with a sliding block, and the sliding block is provided with a driven gear that meshes with the rack; the device also includes a drive motor (6), whose output shaft is provided with a drive gear that meshes with the rack, for driving each component to move horizontally along the sliding groove (10).

4. The intelligent assembly device for the vehicle headlight turntable according to claim 3, characterized in that, Hydraulic rods are connected below the sliding blocks of the dispensing assembly (71), gripping assembly (91), and welding assembly (81) to adjust the vertical height of each assembly.

5. The intelligent assembly device for the vehicle headlight turntable according to claim 1, characterized in that, The positioning groove of the vehicle headlight fixture (4) is fitted with a soft cushioning pad.

6. The intelligent assembly device for the vehicle headlight turntable according to claim 1, characterized in that, It also includes a visual inspection mechanism and an airtightness inspection mechanism disposed radially on the turntable (3). The visual inspection mechanism is used to detect the offset of the light-transmitting component and the state of the adhesive, and the airtightness inspection mechanism is used to detect the sealing of the vehicle lamp assembly.

7. The intelligent assembly device for the vehicle headlight turntable according to claim 1, characterized in that, The suction cup (913) is a flat cone shape with a concave center.

8. A method for intelligent assembly of a vehicle headlight turntable, employing the device as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1, Loading step: The rotary drive mechanism (1) drives the turntable (3) and the automatic loading arm (5) to rotate relative to each other. When the gripping component (91) is located at the loading station (A), the gripping component (91) grips the car lamp component without damage through the flexible suction cup and places it on the car lamp station fixture (4). S2, dispensing step: The turntable (3) rotates to transport the workstation fixture (4) carrying the vehicle light assembly to the dispensing station (B). At the same time, the automatic feeding arm (5) rotates relative to the dispensing assembly (71) so that it is located above the dispensing station (B) and the vehicle light assembly is dispensed. S3, Welding Step: The turntable (3) continues to rotate, transporting the dispensing headlight assembly to the welding station (C). At the same time, the automatic feeding arm (5) rotates relative to the welding assembly (81) above the welding station (C) to weld and fix the headlight assembly. S4. Assembly steps: The turntable (3) continues to rotate, transporting the welded vehicle light assembly to the assembly station (D). At the same time, the automatic loading arm (5) rotates relative to the assembly station (D), so that the gripping component (91) is located above the assembly station (D) to assemble other accessories with the vehicle light assembly. S5. Inspection steps: The turntable (3) continues to rotate, transporting the assembled vehicle lights to the inspection station (E), where the vehicle lights are inspected for quality by the visual inspection mechanism and the airtightness inspection mechanism. S6. Discharge step: The turntable (3) continues to rotate, transporting the inspected car lights to the discharge station (F), and outputting qualified and unqualified products according to the inspection results.

9. The intelligent assembly method for the vehicle headlight turntable according to claim 8, characterized in that, The S5 step specifically includes: The visual inspection mechanism photographs the welded and assembled vehicle lights to determine the offset of the light-transmitting components and the state of the adhesive. The airtightness testing mechanism fills the inside of the headlight with gas, detects the pressure decay, and judges the airtightness of the headlight assembly. The test results are transmitted to the PLC controller in real time.

10. The intelligent assembly method for the vehicle headlight turntable according to claim 8, characterized in that, Step S6 specifically includes: The PLC controller controls the operation of the discharge mechanism based on the detection results; If it is a qualified product, it is pushed onto the conveyor belt by the discharge push rod set in the radial direction of the turntable (3); If the product is defective, it will fall into the collection box through the defective product discharge channel.

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