Automobile LED lamp assembly detection and identification machine
By designing positioning and alignment mechanisms, combined with an air cavity structure, the problem of poor contact caused by tilting during LED lamp assembly testing was solved, achieving an efficient and safe testing process and avoiding misjudgment and equipment damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGZHOU CLD AUTO ELECTRICAL CO LTD
- Filing Date
- 2026-06-08
- Publication Date
- 2026-07-31
AI Technical Summary
In the current testing of LED light components, tilting of the lamp body leads to poor contact, causing misjudgment and equipment damage, increasing production losses and maintenance costs.
Employing positioning and alignment mechanisms, the lamp body achieves wear-free automatic alignment through pressure cover guidance and adaptive swing of the support cover. It integrates power-on detection and industrial visual defect detection, and utilizes air cavity and air outlet structure to achieve rapid separation of the lamp body from the pressure cover, avoiding hard friction and adhesion.
It improves the efficiency and accuracy of the detection and identification machine, prevents lamp damage, reduces production losses, and enhances equipment safety and reliability.
Smart Images
Figure CN122479989A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of new energy vehicle parts processing technology, and in particular to an automotive LED lamp assembly detection and identification machine. Background Technology
[0002] With the rapid development of the new energy vehicle industry, the V2L external discharge function of these vehicles provides convenient power supply support for outdoor camping, emergency lighting, and other scenarios. LED lights, with their advantages of low energy consumption, high luminous efficiency, and strong adaptability, have become commonly used lighting equipment in such scenarios. To ensure the safety and reliability of outdoor use, LED bulbs must undergo strict power-on testing before leaving the factory to screen out unqualified products such as open circuits, driver failures, and contact failures. In the current mainstream automated testing solutions in the industry, LED lights are usually transported to the testing station using conveyor equipment, and power-on testing is achieved by contacting the LED bulb contacts with conductive parts. This method is characterized by fast cycle time and high efficiency, and is suitable for the testing needs of mass production in industrial scenarios.
[0003] In actual production and testing, when LED lights are manually placed on the fixed base of the conveying equipment, some lights may tilt or shift due to factors such as human error, positioning tolerance of the fixed base, and slight vibrations during transport. This can lead to ineffective contact between the top contacts and conductive parts, resulting in misjudgments and missed detections during power-on testing. On the one hand, poor contact can cause the testing system to mistakenly classify qualified products as open-circuit defective products, reducing production yield. On the other hand, the tilted light body may also cause the conductive parts to contact non-conductive parts on the side of the light body, resulting in partial discharge and contact erosion. This not only affects the service life of the testing equipment but may also cause irreversible damage to the structure of the LED bulb, increasing production losses and maintenance costs.
[0004] Therefore, it is necessary to propose a detection and identification machine for automotive LED lamp components to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide an automotive LED lamp assembly inspection and identification machine to solve the problems that poor contact at the contact points can cause the inspection system to mistakenly identify qualified products as open-circuit defective products, thus reducing the production yield. Furthermore, the tilted lamp body may cause conductive parts to come into contact with non-conductive parts on the side of the lamp body, resulting in partial discharge and contact erosion. This not only affects the service life of the inspection equipment but may also cause irreversible damage to the structure of the LED bulb, increasing production losses and maintenance costs.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an automotive LED lamp assembly detection and identification machine, comprising a conveyor belt mounted on a frame, wherein a positioning mechanism is provided on the conveyor belt, the positioning mechanism comprising a fixed seat and a support cover, the fixed seat being fixed on the outer ring surface of the conveyor belt, and the support cover being rotatably mounted on top of the fixed seat;
[0007] A positioning mechanism is provided above the conveyor belt. The positioning mechanism includes a top cylinder that moves back and forth along the height direction of the frame. A sliding column is slidably inserted through the bottom end of the top cylinder. A cone-shaped pressure cover is fixed at the bottom of the sliding column. A second spring for assisting the sliding column to reset is provided between the top end of the sliding column and the top end of the top cylinder. A through hole is opened at the top end of the pressure cover, and the through hole passes through the sliding column. A conductive post is fixed to the top of the top cylinder, and the bottom end of the conductive post extends into the through hole; When in the correct position, the top cylinder drives the pressure cover to move downwards, the inclined surface of the inner wall of the pressure cover contacts and guides the top of the lamp body, and drives the support cover to swing adaptively relative to the fixed seat. During testing, the top of the lamp body rests against the top of the pressure cover, the sliding column retracts into the top cylinder and drives the pressure cover to move, the bottom end of the conductive column extends out through the perforation and contacts the lamp body contact point, and the pressure cover and the support cover cooperate to clamp and position the lamp body.
[0008] Preferably, the top of the sliding column is fixedly connected to an inner plate, and a sealing element is provided on the outer periphery of the inner plate. The inner plate is slidably fitted inside the top cylinder, and a perforation penetrates the inner plate. The lower surface of the inner plate and the bottom of the top cylinder form an air cavity. An air outlet is provided at the top of the side wall of the sliding column. The air cavity is connected to the perforation through the air outlet. A first one-way valve is fixedly installed inside the perforation. An air inlet is provided at the bottom of the side wall of the top cylinder. The air cavity is connected to the external atmospheric environment through the air inlet. A second one-way valve is fixedly installed inside the air inlet. First check valve: Allows gas to flow only from the gas chamber to the perforation; The second one-way valve only allows gas to flow from the outside into the gas chamber.
[0009] Preferably, an insulating sleeve is fixedly installed on the top of the top cylinder, the conductive post is fixed in the insulating sleeve, the length of the insulating sleeve is less than the length of the conductive post, and the insulating sleeve is fitted on the upper half of the conductive post.
[0010] Preferably, the insulating sleeve is made of insulating rubber.
[0011] Preferably, the top of the fixed seat has a ball groove, and the bottom of the support cover is fixed with a rotating ball, which is rotatably disposed in the ball groove; The bottom of the ball groove is provided with a vertical groove, and the outer wall of the fixed seat is provided with a horizontal groove. The lower half of the horizontal groove is connected to the vertical groove. The horizontal groove is horizontally distributed. The bottom of the support cover is provided with a through hole, which penetrates the outer wall of the rotating ball and is connected to the vertical groove. A vertical block slides inside the vertical groove, and a movable plate slides inside the horizontal groove. The vertical block is fixed on the movable plate, and one end of the movable plate away from the vertical block extends to the outside of the horizontal groove. A first spring is fixed between the vertical block and the bottom of the horizontal groove. One end of the first spring is connected to the vertical block, and the other end is fixed to the bottom of the horizontal groove.
[0012] Preferably, an L-shaped frame is fixedly connected to the side wall of the top cylinder, with the vertical section of the L-shaped frame facing downward and engaging with the moving plate.
[0013] Preferably, a bracket is fixedly installed on the top of the frame, an electric push rod is fixedly installed on the lower surface of the top of the bracket, and an L-shaped frame is fixedly installed on the telescopic end of the electric push rod.
[0014] Preferably, a locking strip is hinged to the top of the outer wall of the fixed seat, with the free end of the locking strip inclined downwards. A slot is provided on the top of the moving plate, and the free end of the locking strip is inserted into the slot to achieve limiting and locking.
[0015] Preferably, both the top cylinder and the pressure cover are made of insulating material.
[0016] Preferably, an industrial camera is installed above the conveyor belt for verifying the lighting status of the lamp and for conducting optical and appearance defect detection.
[0017] The technical effects and advantages of this invention are as follows: 1. This invention, by setting up a positioning mechanism and an alignment mechanism, relies on the pressure cover guide and the adaptive swing of the support cover to achieve wear-free automatic alignment, and simultaneously completes the squeezing positioning and protection. This not only solves the problems of poor contact and misjudgment caused by lamp body tilt, but also avoids damage to the lamp body caused by hard friction. At the same time, it integrates power-on detection and industrial vision defect detection functions to improve the efficiency of the detection and identification machine. 2. By setting up structures such as air chambers and air outlets, and using the movement of the pressure cover as a driving force, airflow is formed to assist the rapid separation of the lamp body and the pressure cover, effectively avoiding the situation of parts sticking together and the lamp body being lifted along with it; at the same time, the airflow ventilates and dissipates heat from the contact area between the conductive column and the lamp body, and prevents the phenomenon of contact sticking, further improving the efficiency of the detection and identification machine. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the automotive LED lamp assembly detection and identification machine of the present invention from one perspective.
[0019] Figure 2 This is a schematic diagram of the automotive LED lamp assembly detection and identification machine of the present invention from another perspective.
[0020] Figure 3 This is a schematic diagram of the lamp body and support structure of the present invention.
[0021] Figure 4This is a schematic diagram of the mounting base and support structure of the present invention.
[0022] Figure 5 This is a schematic diagram of the lamp body and industrial camera structure of the present invention.
[0023] Figure 6 This is a schematic diagram of the bracket and industrial camera structure of the present invention.
[0024] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point A in the middle.
[0025] Figure 8 This is a schematic diagram of the moving plate and L-shaped frame structure of the present invention.
[0026] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point B.
[0027] Figure 10 This is a schematic diagram of the lamp body in an inclined state according to the present invention.
[0028] Figure 11 This is a schematic diagram of the insulating sleeve and conductive post structure of the present invention.
[0029] In the diagram: 1. Frame; 101. Support; 2. Conveyor belt; 3. Lamp body; 4. Fixed seat; 401. Ball groove; 402. Vertical groove; 403. Horizontal groove; 5. Support cover; 501. Rotating ball; 502. Through hole; 6. Moving plate; 601. Vertical block; 602. Slot; 7. First spring; 8. Locking strip; 9. Top cylinder; 10. Insulating sleeve; 11. Conductive column; 12. Sliding column; 13. Inner plate; 14. Air chamber; 15. Air outlet; 16. First one-way valve; 17. Air inlet; 18. Second one-way valve; 19. Pressure cover; 1901. Perforation; 20. Second spring; 21. Electric push rod; 22. L-shaped frame; 23. Industrial camera. Detailed Implementation
[0030] Example 1, the present invention provides as follows Figures 1 to 11The illustrated automotive LED lamp assembly testing and identification machine includes a frame 1, on which a conveyor belt 2 is mounted. A positioning mechanism for supporting and initially limiting the lamp body 3 is provided on the outer ring surface of the conveyor belt 2, with the lamp body 3's contacts facing upwards during positioning. A bracket 101 is fixedly installed above the frame 1, and the area where the bracket 101 is located is set as a testing station. The bracket 101 integrates conductive posts 11 and an industrial camera 23. The conductive posts 11 are vertically distributed, with two sets of mutually isolated conductive core wires arranged inside. A large conductive contact piece (not shown in the figure) is provided at the bottom end, corresponding to the positive and negative terminals of the power supply, respectively. Each set of wires is externally connected to the positive and negative terminals of the testing power supply circuit. When the lower end of the conductive post 11 contacts the two pole contacts of the lamp body 3, a complete conductive circuit is formed, supplying the lamp body 3 with the rated operating voltage and current, thereby completing the lighting performance test. Power-on testing is a common existing technology and will not be elaborated upon here.
[0031] Industrial cameras 23 are fixedly mounted on bracket 101. Multiple industrial cameras 23 are set up. Industrial cameras 23 collect image data to verify the lighting status of lamp body 3 on the one hand, and to carry out optical inspection and appearance defect inspection of lamp body 3 on the other hand. They can identify various defects such as surface scratches, color difference, and shell cracks. Industrial cameras 23 and their working principles are common existing technologies, and will not be described in detail here.
[0032] Considering that the lamp body 3 is prone to tilting and shifting due to operational errors and conveying vibrations after being manually placed into the positioning mechanism, which may prevent the top contact of the lamp body 3 from reliably contacting the conductive post 11 and thus cause problems such as misjudgment and missed detection during power-on testing, this invention provides an alignment mechanism inside the bracket 101. The alignment mechanism contacts and cooperates with the top of the lamp body 3, which can automatically complete the posture correction of the lamp body 3 and ensure that the bottom of the conductive post 11 is stably contacted and connected with the contact of the lamp body 3. At the same time, the lamp body 3's posture is adaptively fine-tuned by the swing of the positioning mechanism, which effectively avoids hard friction between the lamp body 3 and the positioning mechanism, prevents the lamp body 3 from breaking, and improves detection accuracy and efficiency.
[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, multiple positioning mechanisms are provided, and the multiple positioning mechanisms are evenly distributed. The positioning mechanism includes a fixed seat 4 and a support 5. The fixed seat 4 is fixed on the conveyor belt 2, and a ball groove 401 is opened on the top of the fixed seat 4. A rotating ball 501 is integrally fixed on the bottom of the support 5, and the rotating ball 501 is rotatably set inside the ball groove 401. In actual use, the lamp body 3 is placed in the support 5 with the contact point facing upward. Relying on the spherical mating structure of the ball groove 401 and the rotating ball 501, the support 5 can realize multi-directional swing adjustment, and there is a certain damping between the ball groove 401 and the rotating ball 501, so it will not rotate randomly when not subjected to external force.
[0034] It should be noted that a silicone pad is attached to the inner wall of the support 5. On the one hand, it prevents the lamp body 3 from being scratched or damaged by direct impact. On the other hand, when correcting the posture of the lamp body 3 inside the support 5, the silicone pad can simultaneously increase the friction of the contact surface and prevent the lamp body 3 from slipping or shifting relative to the support 5.
[0035] Reference Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, the positioning mechanism includes a top cylinder 9, which moves up and down along the height of the frame 1. A sliding column 12 is slidably inserted through the bottom end of the top cylinder 9. A pressure cover 19 is fixedly connected to the bottom of the sliding column 12. The pressure cover 19 is conical in shape and has a large inner diameter at the bottom end. An inner plate 13 is fixedly connected to the top of the sliding column 12. The inner plate 13 is slidably disposed in the top cylinder 9. A sealing ring is provided on the outer ring surface of the inner plate 13 to reduce wear and ensure sealing. A second spring 20 is fixedly connected to the top of the inner plate 13. The top end of the second spring 20 is fixedly connected to the top of the top cylinder 9 to assist the pressure cover 19 and other structures in resetting. The elastic support force of the second spring 20 is relatively small. A through hole 1901 is opened at the top end of the pressure cover 19, and the through hole 1901 passes through the sliding column 12 and the inner plate 13 sequentially.
[0036] The top of the top cylinder 9 has a through groove, and an insulating sleeve 10 is fixedly installed inside the through groove. The conductive post 11 is fixed in the insulating sleeve 10, and the bottom end of the conductive post 11 extends into the through hole 1901.
[0037] The actual working conditions are as follows: The first step is for the operator to place the lamp body 3 in the support 5 at the end of the conveyor belt 2, ensuring that the contact points of the lamp body 3 are facing upwards, thus completing the feeding process.
[0038] The second step involves the conveyor belt 2 stopping when the lamp body 3 moves to the testing station, and controlling the top cylinder 9, pressure cover 19, and other structures to move downwards synchronously; when the top edge of the lamp body 3 contacts the inner wall of the pressure cover 19 (refer to...). Figure 10 Under the guidance of the inclined surface of the inner wall of the pressure cover 19, and in conjunction with the adaptive swing of the support cover 5 relative to the fixed seat 4, the posture correction of the lamp body 3 is automatically completed.
[0039] Subsequently, the top of the lamp body 3 rests against the top of the pressure cover 19, the top cylinder 9 continues to descend, the sliding column 12 retracts into the top cylinder 9 and compresses the second spring 20; after the second spring 20 is fully compressed, the top cylinder 9 stops moving. At this time, the bottom end of the conductive column 11 makes reliable contact with the lamp body 3, and the pressure cover 19 and the support cover 5 cooperate to complete the positioning of the lamp body 3, ensuring the stability of the detection process.
[0040] In the third step, the conductive post 11 is connected to the power supply to realize the power-on detection. At the same time, the industrial camera 23 collects images to verify the lighting status of the lamp body 3. After the lighting detection is completed, the top cylinder 9, the pressure cover 19 and other structures are reset upwards to release the limiting fixation of the lamp body 3. The lamp body 3 continues to move with the conveyor belt 2. The industrial camera 23 continuously collects images to carry out optical inspection and appearance defect inspection on the lamp body 3, and identifies various defects such as surface scratches, color difference, and shell cracks.
[0041] In addition, the pressure cover 19 forms an outer protection for the contact area between the conductive post 11 and the lamp body 3, effectively preventing operators from accidentally touching live areas and improving the safety of equipment operation.
[0042] In summary, this invention, by setting up a positioning mechanism and an alignment mechanism, relies on the guide of the pressure cover 19 and the adaptive swing of the support cover 5 to achieve wear-free automatic alignment, and simultaneously completes the squeezing positioning and protection. This not only solves the problems of poor contact and misjudgment caused by the tilt of the lamp body 3, but also avoids damage to the lamp body 3 caused by hard friction. At the same time, it integrates power-on detection and industrial visual defect detection functions, improving the efficiency of the detection and identification machine.
[0043] It should be noted that the top cylinder 9, pressure cover 19 and other structures are all made of insulating materials, such as industrial plastics, which can effectively avoid the risk of leakage and short circuit, and ensure the safety of equipment operation and testing.
[0044] Reference Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in order to achieve rapid separation between the pressure cover 19 and the top of the lamp body 3, and to prevent the lamp body 3 from being lifted when the pressure cover 19 moves upward to reset, an air cavity 14 is formed between the lower surface of the inner plate 13 and the bottom of the top cylinder 9; an air outlet 15 is provided at the top of the side wall of the sliding column 12, and the air cavity 14 is connected to the perforation 1901 through the air outlet 15. A first one-way valve 16 is fixedly installed inside the perforation 1901, and the first one-way valve 16 is set to realize one-way flow from the air cavity 14 to the perforation 1901; an air inlet 17 is provided at the bottom of the side wall of the top cylinder 9, and the air cavity 14 is connected to the external atmospheric environment through the air inlet 17. A second one-way valve 18 is fixedly installed inside the air inlet 17, and the second one-way valve 18 is set to realize one-way flow from the external atmospheric environment to the air cavity 14. In actual use, a filter screen and other structures are provided at the air inlet 17 to prevent dust and other impurities from entering the interior of the air cavity 14, and it is cleaned manually periodically.
[0045] The length of the insulating sleeve 10 is less than the length of the conductive post 11, and the insulating sleeve 10 is located in the upper half of the conductive post 11. The insulating sleeve 10 is made of insulating rubber material and is tightly attached to the inner wall of the perforation 1901.
[0046] The bottom of the ball groove 401 of the fixed seat 4 has a vertical groove 402, and the outer wall of the fixed seat 4 has a horizontal groove 403. The horizontal groove 403 is connected to the lower half of the vertical groove 402. The horizontal groove 403 is horizontally distributed. The bottom of the support cover 5 has a through hole 502, which penetrates the outer wall of the rotating ball 501 and is connected to the vertical groove 402. A vertical block 601 is slidably arranged inside the vertical groove 402, and a movable plate 6 is slidably arranged inside the horizontal groove 403. The vertical block 601 is fixed on the movable plate 6. The end away from the vertical block 601 extends to the outside of the horizontal groove 403. The bottom of the vertical block 601 is fixedly connected to a first spring 7. The bottom end of the first spring 7 is fixedly connected to the bottom of the horizontal groove 403. The first spring 7 is provided for the reset of the vertical block 601, the moving plate 6 and other structures. The top of the fixed seat 4 is provided with a soft cover (not shown in the figure) surrounding the rotating ball 501 to prevent dust, gas and other substances from entering the gap between the ball groove 401 and the rotating ball 501. The soft cover does not affect the rotation of the rotating ball 501.
[0047] An L-shaped frame 22 is fixedly connected to the side wall of the top cylinder 9. The vertical section of the L-shaped frame 22 faces downward and abuts against the moving plate 6.
[0048] A retaining strip 8 is hinged to the top of the outer wall of the fixed seat 4. The free end of the retaining strip 8 is inclined downward. A retaining groove 602 is opened on the top of the moving plate 6. The free end of the retaining strip 8 abuts and cooperates with the retaining groove 602. When the moving plate 6 moves downward, the free end of the retaining strip 8 moves from abutting the upper surface of the moving plate 6 to the inside of the retaining groove 602. At this time, the moving plate 6 cannot move upward to reset. The retaining strip 8 has a certain elasticity, which makes it easy for the operator to pull the free end of the retaining strip 8 out of the inside of the retaining groove 602.
[0049] The actual working conditions are as follows: In the first stage (when positioning the lamp body 3), the top cylinder 9 moves downward, the top of the lamp body 3 abuts against the top of the pressure cover 19, the sliding column 12 retracts into the top cylinder 9 and compresses the second spring 20, the inner plate 13 slides upward inside the top cylinder 9, the volume of the air chamber 14 gradually increases, and the external gas is drawn into the air chamber 14 through the air inlet 17 to complete the gas storage operation; the air outlet 15 moves upward and aligns with the insulating sleeve 10, and the insulating sleeve 10 seals the air outlet 15.
[0050] At the same time, the vertical section of the L-shaped frame 22 contacts and pushes the moving plate 6 to move downward. The vertical block 601 moves downward synchronously inside the vertical groove 402. During the downward movement of the vertical block 601, the volume of the upper space of the vertical groove 402 increases, forming a negative pressure, which generates a suction effect on the inside of the support 5 through the through hole 502. When the lamp body 3 is in the correct position, the lamp body 3 is firmly adsorbed inside the support 5.
[0051] In addition, the free end of the clip 8 moves from the upper surface of the moving plate 6 to the inside of the slot 602, and the moving plate 6 cannot move upward to reset. The lamp body 3 remains fixed inside the cover 5, which facilitates subsequent re-inspection and other operations. The L-shaped frame 22 and the moving plate 6 form a limiting support to prevent the top cylinder 9 from continuing to descend, thus avoiding damage to the lamp body 3 due to misoperation or other reasons.
[0052] In the second stage (during reset), the top cylinder 9 moves upward. Under the reset force of the second spring 20, the inner plate 13 slides downward inside the top cylinder 9, and the volume of the air chamber 14 gradually decreases. Since the air outlet 15 corresponds to the insulating sleeve 10 and the insulating sleeve 10 blocks the air outlet 15, the gas inside the air chamber 14 cannot be discharged at this time. The compressed gas stores energy until the air outlet 15 and the bottom of the insulating sleeve 10 are misaligned. The high-pressure gas is quickly ejected downward through the air outlet 15 and the perforation 1901. The airflow acts on the top of the lamp body 3, realizing the rapid separation of the lamp body 3 from the pressure cover 19. The lamp body 3 remains fixed inside the support cover 5 to prevent the parts from sticking together and the lamp body 3 from being lifted along with it, thereby avoiding the problem of the lamp body 3 breaking.
[0053] In addition, the high-speed airflow can ventilate and dissipate heat at the contact point between the conductive post 11 and the lamp body 3, while effectively avoiding the phenomenon of contact sticking caused by the tiny electric arc generated when the power is turned on and off, further improving the stability of equipment operation and the reliability of detection.
[0054] In summary, by setting up structures such as the air chamber 14 and the air outlet 15, and using the movement of the pressure cover 19 as a driving force, the present invention forms an airflow to assist the rapid separation of the lamp body 3 from the pressure cover 19, effectively avoiding the situation where components stick together and the lamp body 3 is lifted along with it; at the same time, the airflow ventilates and dissipates heat at the contact area between the conductive post 11 and the lamp body 3, and prevents the phenomenon of contact sticking, further improving the efficiency of the detection and identification machine.
[0055] Furthermore, by relying on the insulating sleeve 10 to block the air outlet 15 and the air chamber 14 with volume change, the gas can be stored for a delayed time, ensuring that the airflow is ejected at high pressure and improving the timeliness and reliability of the separation action. By setting up structures such as the vertical groove 402 and the L-shaped frame 22, the lamp body 3 can be stably confined in the support 5 during operation, which not only avoids the excessive downward compression of the top cylinder 9 and damage to the lamp body 3, but also ensures that the position of the lamp body 3 is fixed when each process is carried out, and the overall equipment operates stably.
[0056] Reference Figure 1 and Figure 2 As shown, both ends of the frame 1 are equipped with rotating rollers, which are connected by a conveyor belt 2. A motor is fixedly installed on the frame 1 and connected to the factory's power supply. One of the rotating rollers is fixedly connected to the drive shaft of the motor, which drives the rotating roller to rotate, thereby driving the conveyor belt 2 to circulate and realize the continuous conveying of the lamp body 3.
[0057] Example 2, refer to Figure 6 As shown, an electric push rod 21 is fixedly installed on the lower surface of the top of the bracket 101, and an L-shaped frame 22 is fixedly installed on the telescopic end of the electric push rod 21. The electric push rod 21 drives the top cylinder 9, the L-shaped frame 22 and other structures to move up and down. The electric push rod 21 is connected to the factory's power supply and is controlled by an automatic control system. The automatic control system includes a PLC controller, a workstation position sensor, a limit switch, a power-on detection module and an industrial vision inspection module, etc. The modules cooperate with each other and work together.
[0058] In actual operation, the station position sensor collects the real-time running status of the conveyor belt 2 and the station position signal of the lamp body 3. When the lamp body 3 is conveyed to the detection station, the sensor feeds back the arrival signal to the PLC controller in real time. After receiving the signal, the PLC controller outputs a downward control command to drive the electric push rod 21 to extend and move downward, driving the top cylinder 9, the pressure cover 19 and the L-shaped frame 22 to move downward synchronously, completing a series of actions such as adaptive posture positioning, negative pressure adsorption fixation and clamping positioning of the lamp body 3 in sequence. When the top cylinder 9 moves down to the preset safety stroke and triggers the limit switch, the electric push rod 21 immediately stops moving downward and maintains the locked positioning state. Then the system starts the power-on detection module to make the conductive post 11 and the lamp body 3 contact conductive, completing the lamp lighting performance test. At the same time, the industrial camera 23 is linked to collect image data to perform a comprehensive visual screening of appearance defects such as scratches, color difference and shell cracks on the surface of the lamp body 3.
[0059] After all testing procedures are completed, the PLC controller automatically outputs a reset command, controlling the electric push rod 21 to retract and move upward, driving the top cylinder 9, pressure cover 19, L-shaped frame 22 and other structures to be lifted and reset as a whole; after reset, the conveyor belt 2 continues to run, driving the tested lamp body 3 to flow to the next station.
Claims
1. An automobile LED lamp assembly detection and identification machine, comprising a conveying belt (2) arranged on a frame (1), characterized in that: The conveyor belt (2) is provided with a positioning mechanism, which includes a fixed seat (4) and a support cover (5). The fixed seat (4) is fixed on the outer ring surface of the conveyor belt (2), and the support cover (5) is rotatably set on the top of the fixed seat (4). A positioning mechanism is provided above the conveyor belt (2). The positioning mechanism includes a top cylinder (9). The top cylinder (9) moves back and forth along the height direction of the frame (1). A sliding column (12) is slidably passed through the bottom end of the top cylinder (9). A cone-shaped pressure cover (19) is fixed at the bottom of the sliding column (12). A second spring (20) is provided between the top end of the sliding column (12) and the top end of the top cylinder (9) to assist the sliding column (12) in resetting. A through hole (1901) is opened at the top end of the pressure cover (19). The through hole (1901) passes through the sliding column (12). A conductive post (11) is fixed to the top of the top cylinder (9), and the bottom end of the conductive post (11) extends into the through hole (1901); When in the correct position, the top cylinder (9) drives the pressure cover (19) to move downward, the inclined surface of the inner wall of the pressure cover (19) contacts and guides the top of the lamp body (3), and drives the support cover (5) to swing adaptively relative to the fixed seat (4); During testing, the top of the lamp body (3) rests against the top of the pressure cover (19), the sliding column (12) retracts into the top cylinder (9) and drives the pressure cover (19) to move, the bottom end of the conductive column (11) extends out through the perforation (1901) and contacts the lamp body (3), and the pressure cover (19) and the support cover (5) cooperate to clamp and position the lamp body (3).
2. The automobile LED lamp assembly detection and identification machine of claim 1, wherein: The top of the sliding column (12) is fixedly connected to an inner plate (13), and a sealing element is provided on the outer periphery of the inner plate (13). The inner plate (13) is sealed and slidably assembled inside the top cylinder (9), and the perforation (1901) penetrates the inner plate (13). The lower surface of the inner plate (13) and the bottom of the top cylinder (9) enclose an air cavity (14). An air outlet (15) is provided at the top of the side wall of the sliding column (12). The air cavity (14) is connected to the perforation (1901) through the air outlet (15). A first one-way valve (16) is fixedly installed inside the perforation (1901). An air inlet (17) is provided at the bottom of the side wall of the top cylinder (9). The air cavity (14) is connected to the external atmospheric environment through the air inlet (17). A second one-way valve (18) is fixedly installed inside the air inlet (17). The first one-way valve (16) only allows gas to flow from the gas chamber (14) to the perforation (1901). The second one-way valve (18) only allows gas to flow from the outside to the gas chamber (14).
3. The automotive LED lamp assembly detection and identification machine according to claim 2, characterized in that: An insulating sleeve (10) is fixedly installed on the top of the top cylinder (9), and a conductive column (11) is fixed in the insulating sleeve (10). The length of the insulating sleeve (10) is less than the length of the conductive column (11), and the insulating sleeve (10) is fitted on the upper half of the conductive column (11).
4. The automotive LED lamp assembly detection and identification machine according to claim 3, characterized in that: The insulating sleeve (10) is made of insulating rubber.
5. The automotive LED lamp assembly detection and identification machine according to claim 1, characterized in that: The top of the fixed seat (4) has a ball groove (401), and the bottom of the support cover (5) is fixed with a rotating ball (501), which is rotatably disposed in the ball groove (401). The bottom of the ball groove (401) is provided with a vertical groove (402), and the outer wall of the fixed seat (4) is provided with a horizontal groove (403). The horizontal groove (403) is connected to the lower half of the vertical groove (402). The horizontal groove (403) is horizontally distributed. The bottom of the support cover (5) is provided with a through hole (502), and the through hole (502) penetrates the outer wall of the rotating ball (501). The through hole (502) is connected to the vertical groove (402). A vertical block (601) slides inside the vertical groove (402), and a movable plate (6) slides inside the horizontal groove (403). The vertical block (601) is fixed on the movable plate (6), and one end of the movable plate (6) away from the vertical block (601) extends to the outside of the horizontal groove (403). A first spring (7) is fixed between the vertical block (601) and the bottom of the horizontal groove (403). One end of the first spring (7) is connected to the vertical block (601), and the other end is fixed to the bottom of the horizontal groove (403).
6. The automotive LED lamp assembly detection and identification machine according to claim 5, characterized in that: An L-shaped frame (22) is fixedly connected to the side wall of the top cylinder (9). The vertical section of the L-shaped frame (22) faces downward and abuts against the moving plate (6).
7. The automotive LED lamp assembly detection and identification machine according to claim 6, characterized in that: A bracket (101) is fixedly installed on the top of the frame (1), and an electric push rod (21) is fixedly installed on the lower surface of the top of the bracket (101). An L-shaped frame (22) is fixedly installed on the telescopic end of the electric push rod (21).
8. The automotive LED lamp assembly detection and identification machine according to claim 5, characterized in that: The top of the outer wall of the fixed seat (4) is hinged with a locking strip (8). The free end of the locking strip (8) is inclined downward. The top of the moving plate (6) is provided with a slot (602). The free end of the locking strip (8) is inserted into the slot (602) to achieve limit locking.
9. The automotive LED lamp assembly detection and identification machine according to claim 1, characterized in that: Both the top cylinder (9) and the pressure cover (19) are made of insulating material.
10. The automotive LED lamp assembly detection and identification machine according to claim 1, characterized in that: An industrial camera (23) is installed above the conveyor belt (2) to verify the lighting status of the lamp body (3) and to carry out optical inspection and appearance defect inspection.