A rotation positioning device for an automobile use deflection lamp head

Abstract

This invention discloses a rotary positioning device for automotive angled lamp heads. The device is mounted on a loading mechanism, which includes a lamp head disc and a driver. The rotary positioning device includes a first station and a second station. A first baffle is located at the first station, and a second baffle is located at the second station. Driven by a first servo motor at the first station, the first baffle can rotate either a first or second reference lamp pin to a reference position. Driven by a second servo motor at the second station, the second baffle can rotate the second reference lamp pin, thus positioning the first reference lamp pin at the reference position. The driver, the first servo motor, and the second servo motor are connected to a PLC controller. This device can accurately position the direction of the first reference lamp pin. Due to the precise positioning of the first and second reference lamp pins, the efficiency, accuracy, and yield of subsequent lamp head and bulb assembly are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of automotive angled lamp heads, and in particular to a rotary positioning device for automotive angled lamp heads. Background Technology

[0002] In the automotive lighting system manufacturing industry, angled lamp holders are commonly used to distinguish bulbs of different specifications to prevent errors. Angled lamp holders generally include two reference lamp pins, namely the first reference lamp pin and the second reference lamp pin, and the positioning order of the two reference lamp pins is fixed. This is necessary to ensure the fixed angle of the angled lamp holder. Therefore, the positioning order of the two reference lamp pins of the angled lamp holder directly affects the error-proof assembly and standardized production of the bulb.

[0003] Traditional angled lamp holders typically have a positioning groove at the top, corresponding to the first reference lamp base. The existing method for rotating and positioning a traditional angled lamp holder is as follows: After the lamp holder with the positioning groove is loaded by a feeding mechanism, the lamp holder rotates within the lamp holder to a rotating position as the lamp holder disc rotates. The cam mechanism of the feeding mechanism drives the upper pressure rod downwards and the lower pressure rod upwards, thus fixing the angled lamp holder vertically within the lamp holder. At this point, the motor drives the lamp holder to rotate, which in turn rotates the angled lamp holder. A spring plate is located at the end of the lower pressure rod. When the angled lamp holder rotates, the spring plate engages with the positioning groove, stopping the rotation and positioning the first reference lamp base, thus achieving the fixation of the angled lamp holder with the positioning groove. However, due to the new national standard, the new angle lamp holder has eliminated the positioning groove, which has rendered the traditional method of using the positioning groove to correct the two reference lamp feet ineffective. This makes it impossible for existing equipment to accurately position the direction of the first reference lamp foot, affecting the efficiency, accuracy and yield of subsequent lamp holder and bulb assembly. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary positioning device for an automotive angled lamp head. Through two rotational positioning operations, the direction of the first reference lamp pin can be accurately positioned, thereby ensuring the correctness of the angles of the first and second reference lamp pins. Moreover, due to the accurate positioning angles of the first and second reference lamp pins, the subsequent assembly efficiency, precision, and yield of the lamp head and bulb are greatly improved.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a rotary positioning device for an automotive angled lamp head. The rotary positioning device is mounted on a feeding mechanism, which includes a lamp head disc and a driver. The lamp head disc holds the angled lamp head, which has a first reference lamp base and a second reference lamp base with an angled setting. The rotary positioning device includes a first station and a second station, each with a lamp head holder and a lamp head pressing rod corresponding to each other vertically. The lamp head disc rotates axially via the driver, rotating the angled lamp head onto the lamp head holder at the first or second station. The lamp head holder and the lamp head pressing rod are respectively connected to a first driving device. The driver is activated to move the lamp head pressure rod downward and drive the lamp head base upward, so that the angled lamp head is pressed against the first or second station. The lamp head base is also connected to the second driving device. The first station is provided with a first baffle, and the second station is provided with a second baffle. The first baffle, driven by the second driving device at the first station, can push the first or second reference lamp foot to rotate to the reference position. The second baffle, driven by the second driving device at the second station, can push the second reference lamp foot to rotate, so that the first reference lamp foot is located at the reference position. The driver, the first driving device, and the second driving device are respectively connected to the PLC controller.

[0007] Preferably, the first workstation is provided with a first lamp holder and a first lamp holder pressure rod, a first baffle is provided on the upper edge of the first lamp holder, and the first driving device on the first workstation includes an upper cylinder and a lower cylinder. The fixed end of the lower cylinder is fixedly connected to the lower cylinder bracket, the lower cylinder bracket is fixedly connected to the feeding mechanism, the movable end of the lower cylinder is connected to the slide plate, the slide plate is connected to the first lower connecting plate, the first lower connecting plate is connected to the first lamp holder, the fixed end of the upper cylinder is fixedly connected to the upper cylinder bracket, the upper cylinder bracket is fixedly connected to the lower cylinder bracket, the movable end of the upper cylinder is connected to the first upper connecting plate, and the first upper connecting plate is connected to the first lamp holder pressure rod.

[0008] Preferably, the second driving device on the first workstation is a first servo motor, which is fixedly connected to the lower surface of the first lower connecting plate, and the first output shaft of the first servo motor is connected to the lower end of the first lamp holder.

[0009] Preferably, the second workstation is provided with a second lamp holder and a second lamp holder pressure rod, and a second baffle is provided on the upper edge of the second lamp holder. The first driving device on the second workstation includes a cam assembly, which includes a first cam and a second cam. The first cam and the second cam are fixedly connected to a camshaft and the lift points of the first cam and the second cam are opposite. The camshaft is connected to the driver. The first cam meshes with a first transmission wheel. The first transmission wheel is connected to a first limiting wheel. The first limiting wheel is connected to a first rod. The first rod is connected to a second lower connecting plate. The second lower connecting plate is connected to the second lamp holder. The second cam meshes with a second transmission wheel. The second transmission wheel is connected to a second limiting wheel. The second limiting wheel is connected to a second rod. The second rod is connected to a second upper connecting plate. The second upper connecting plate is connected to the second lamp holder pressure rod.

[0010] Preferably, the second driving device on the second workstation is a second servo motor, which is fixedly connected to the lower surface of the second lower connecting plate, and the second output shaft of the second servo motor is connected to the lower end of the second lamp holder.

[0011] Preferably, the lamp head disk has several lamp head slots along its circumferential edge. The lamp head slots are used to place angled lamp heads. A rotating shaft is fixedly connected to the lower surface of the lamp head disk. The rotating shaft is connected to a driver. A follower wheel is fixedly sleeved at the lower end of the rotating shaft. The follower wheel has several protruding teeth, the number of which is the same as the number of lamp head slots. A mounting plate is fixedly connected to the lower part of the lower cylinder bracket. A first proximity switch is provided on the mounting plate. The first proximity switch is connected to a PLC controller. When the protruding teeth on the follower wheel rotate above the first proximity switch, the first proximity switch generates a signal and transmits the signal to the PLC controller.

[0012] Preferably, one end of the second lower connecting plate is connected to the first plate, the first plate is connected to the connecting column, the connecting column is connected to the second plate, and the second plate is provided with a second proximity switch. The second proximity switch is connected to the PLC controller. When the first rod drives the second lamp holder and the second proximity switch to move upward, when the distance between the second proximity switch and the lamp holder reaches the set height, the second proximity switch generates a signal and transmits the signal to the PLC controller.

[0013] Preferably, the first lower connecting plate is provided with a first photoelectric switch, which is connected to the PLC controller. The first photoelectric switch is provided with a first U-shaped groove. A first connecting block is sleeved on the outer periphery of the first lamp holder. A first protrusion is provided on the same side of the first connecting block as the first baffle. The first protrusion can pass through the first U-shaped groove. When the first protrusion is located in the first U-shaped groove, the first photoelectric switch generates a signal and transmits the signal to the PLC controller.

[0014] Preferably, the second lower connecting plate is provided with a second photoelectric switch, which is connected to the PLC controller. The second photoelectric switch is provided with a second U-shaped groove. A second connecting block is sleeved on the outer periphery of the second lamp holder. A second protrusion is provided on the side of the second connecting block opposite to the second baffle. The second protrusion can pass through the second U-shaped groove. When the second protrusion is located in the second U-shaped groove, the second photoelectric switch generates a signal and transmits the signal to the PLC controller.

[0015] Preferably, the feeding mechanism also has a semi-circular baffle, and the inner wall of the lamp head station slot is provided with a first groove and a second groove.

[0016] The present invention achieves the following beneficial technical effects compared to the prior art:

[0017] The rotary positioning device for automotive angled lamp heads provided by this invention, in use, involves a driver of the loading mechanism driving the lamp head disk to rotate, which in turn drives the lower follower wheel to rotate. When the convex tooth on the follower wheel rotates above the first proximity switch, the first proximity switch receives a signal and transmits the signal to the PLC controller. The PLC controller then drives the movable end of the upper cylinder to move downward while the movable end of the lower cylinder moves upward, pressing the angled lamp head into the first station. This drives the first servo motor to rotate the required angle, causing the first lamp head holder to rotate. Consequently, the first baffle on the first lamp head holder pushes the first or second reference lamp foot to a set position, i.e., the 0° position, when it rotates. After the rotation at the first station, the randomness of the initial direction of the reference lamp foot is eliminated, so that the first reference lamp foot is now at the 0° or 210° position. Then, the angled lamp head enters the second station under the rotation of the lamp head disk. When the angled lamp head rotates to the second position, the convex tooth on the follower wheel rotates above the first proximity switch. The first proximity switch receives a signal and transmits it to the PLC controller. The PLC controller then activates the driver, which drives the camshaft to rotate. The rotation of the camshaft causes the first lever to move upward while the second lever moves downward, pressing the angled lamp head firmly into the second position. The PLC controller then controls the second servo motor to rotate, causing the second baffle on the second lamp head holder to rotate. This baffle pushes the second reference lamp foot to rotate, forcibly positioning the first reference lamp foot precisely from either the 0° or 210° position to the 0° direction. This two-stage rotational positioning ensures the first reference lamp foot is aligned to the 0° direction, guaranteeing the correct angles of the first and second reference lamp feet. The precise positioning of the first and second reference lamp feet significantly improves the success rate of subsequent assembly. Furthermore, throughout the entire process, the proximity switch, photoelectric switch, and PLC controller work together. The PLC controller integrates control over processes such as feeding, pressing, rotation, and reset, achieving precise positioning of the angled lamp head. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rotating positioning device for the automotive angle lamp head in this invention;

[0019] Figure 2 This is a partially exploded structural diagram of the rotating positioning device for the automotive angle lamp head in this invention;

[0020] Figure 3 This is a schematic diagram of the structure of the angled lamp head of the rotating positioning device for the angled lamp head of an automobile in this invention;

[0021] Figure 4 This is a schematic diagram showing the first and second reference lamp pins at the correct positioning angle.

[0022] Figure 5 This is a schematic diagram showing the first and second reference lamp pins at incorrect positioning angles.

[0023] In the diagram: 1-Lamp head plate, 2-Lamp head station slot, 3-Angled lamp head, 4-Rotating shaft, A-First reference lamp foot, B-Second reference lamp foot, 7-First station, 8-Second station, 9-First lamp head holder, 10-First lamp head pressure rod, 11-Upper cylinder, 12-Lower cylinder, 13-Lower cylinder bracket, 14-Slide plate, 15-First lower connecting plate, 16-Second flat plate, 17-Upper cylinder bracket, 18-First upper connecting plate, 19-First servo motor, 20-First baffle, 21-Follower wheel, 22-Protruding tooth, 23-Mounting plate, 24-First proximity switch, 25-First photoelectric switch, 26-First U-shaped groove, 27-First connecting block, 28-First protrusion. 29-Second lamp holder, 30-Second lamp holder pressure rod, 31-First cam, 32-Second cam, 33-Camshaft, 34-First transmission wheel, 35-First limit wheel, 36-First rod, 37-Second transmission wheel, 38-Second limit wheel, 39-Second rod, 40-Second servo motor, 41-First output shaft, 42-Second output shaft, 43-Second baffle, 44-First flat plate, 45-Connecting column, 46-Second proximity switch, 47-Second photoelectric switch, 48-Second U-shaped groove, 49-Second connecting block, 50-Second protrusion, 51-Baffle plate, 52-Second lower connecting plate, 53-Second upper connecting plate, 54-First groove, 55-Second groove. Detailed Implementation

[0024] This invention provides a rotation positioning device for an automotive angled head lamp, such as... Figures 1-3As shown, the rotary positioning device is mounted on the feeding mechanism, which includes a lamp head disk 1 and a driver (not shown). The circumferential edge of the lamp head disk 1 is provided with several lamp head slots 2. In this embodiment, there are 8 lamp head slots 2. The lamp head slots 2 are used to place the angled lamp head 3. The lower surface of the lamp head disk 1 is fixedly connected to a rotating shaft 4. The rotating shaft 4 is connected to the driver, and the driver is connected to a PLC controller (not shown). When the driver is started by the PLC controller, the driver will drive the lamp head disk 1 to rotate around the rotating shaft 4 to rotate the angled lamp head 3 onto the rotary positioning device.

[0025] The angled lamp head 3 is provided with a first reference lamp foot A and a second reference lamp foot B with an angle setting. The reference position is 0°. The rotation positioning device includes a first station 7 and a second station 8. The first station 7 is provided with a first lamp head seat 9 and a first lamp head pressing rod 10 with corresponding upper and lower positions. When the lamp head disk 1 drives the angled lamp head 3 to rotate, the angled lamp head 3 will rotate to the position between the first lamp head seat 9 and the first lamp head pressing rod 10. The first lamp head seat 9 and the first lamp head pressing rod 10 are respectively connected to the first driving device. The first driving device can drive the first lamp head pressing rod 10 to move downward and drive the first lamp head seat 9 to move upward, so that the angled lamp head 3 is pressed against the first station 7. Specifically, the first driving device at the first station 7 includes an upper cylinder 11 and a lower cylinder 12. The fixed end of the lower cylinder 12 is fixedly connected to the lower cylinder bracket 13, which is fixedly connected to the feeding mechanism. The movable end of the lower cylinder 12 is connected to the slide plate 14, which is connected to the first lower connecting plate 15. The first lower connecting plate 15 is connected to the first lamp holder 9, and the lower cylinder 12 is connected to the PLC controller. When the PLC controller starts the movable end of the lower cylinder 12 to move upward, the movement of the movable end of the lower cylinder 12 will drive the slide plate 14 to move upward, which in turn will drive the first lower connecting plate 15 to move upward, which in turn will drive the first lamp holder 9 to move upward, thereby pressing the lower part of the angled lamp holder 3 inside the first lamp holder 9. The fixed end of the upper cylinder 11 is fixedly connected to the upper cylinder bracket 17, which is fixedly connected to the lower cylinder bracket 13. The movable end of the upper cylinder 11 is connected to the first upper connecting plate 18, which is connected to the first lamp holder pressure rod 10. The upper cylinder 11 is connected to the PLC controller. When the PLC controller starts the movable end of the upper cylinder 11 to move downward, the movement of the movable end of the upper cylinder 11 will drive the first upper connecting plate 18 to move downward, which in turn will drive the first lamp holder pressure rod 10 to move downward, thereby pressing the upper part of the angled lamp holder 3 in the first lamp holder 9. Through the downward movement of the first lamp holder pressure rod 10 and the simultaneous upward movement of the first lamp holder 9, the vertical direction of the angled lamp holder 3 is limited and pressed onto the first station 7. The first lamp holder 9 on the first station 7 is also connected to the second drive device. Specifically, the second drive device on the first station 7 is a first servo motor 19. The first servo motor 19 is fixed to the lower surface of the first lower connecting plate 15. The first output shaft 41 of the first servo motor 19 is connected to the lower end of the first lamp holder 9. The first servo motor 19 is connected to a PLC controller. When the first servo motor 19 is started by the PLC controller, the rotation of the first output shaft 41 of the first servo motor 19 will drive the rotation of the first lamp holder 9.The upper edge of the first lamp holder 9 is provided with a first baffle 20. When the angle lamp holder 3 is pressed into the first station 7 by the driving action of the upper cylinder 11 and the lower cylinder 12 through the PLC controller, the first servo motor 19 is started. The rotation of the first servo motor 19 drives the rotation of the first lamp holder 9, which in turn drives the rotation of the first baffle 20. When the first baffle 20 touches the first reference lamp foot A or the second reference lamp foot B of the angle lamp holder 3, it will push the first reference lamp foot A or the second reference lamp foot B to drive the angle lamp holder 3 to rotate and rotate to the set position.

[0026] A follower wheel 21 is fixedly sleeved at the lower end of the rotating shaft 4. The follower wheel 21 is provided with a number of protruding teeth 22. The number of protruding teeth 22 is the same as that of the lamp head slot 2. In this embodiment, the number of protruding teeth 22 is 8. A mounting plate 23 is fixedly connected to the lower part of the lower cylinder bracket 13. A first proximity switch 24 is provided on the mounting plate 23. The first proximity switch 24 is connected to the PLC controller. When the protruding teeth 22 on the follower wheel 21 rotate above the first proximity switch 24, the first proximity switch 24 generates a signal and transmits the signal to the PLC controller. The first lower connecting plate 15 is provided with a first photoelectric switch 25, which is connected to the PLC controller. The first photoelectric switch 25 is provided with a first U-shaped groove 26. A first connecting block 27 is sleeved on the outer periphery of the first lamp holder 9. A first protrusion 28 is provided on the same side of the first connecting block 27 as the first baffle 20. The first protrusion 28 can pass through the first U-shaped groove 26. When the first protrusion 28 is located in the first U-shaped groove 26, the first photoelectric switch 25 generates a signal and transmits the signal to the PLC controller.

[0027] Specifically, the driver of the feeding mechanism drives the lamp head disk 1 to rotate, which in turn drives the follower wheel 21 below to rotate. When the tooth 22 on the follower wheel 21 rotates above the first proximity switch 24, the first proximity switch 24 receives a signal and transmits the signal to the PLC controller. The PLC controller will give the running time of the first station 7. Then, the PLC controller will drive the movable end of the upper cylinder 11 to move downward while the movable end of the lower cylinder 12 moves upward, so that the angle lamp head 3 is pressed. Then, the first servo motor 19 is driven to rotate the required angle, so as to drive the first lamp head base 9 to rotate. Then, the first baffle 20 on the first lamp head base 9 pushes the first reference lamp foot A or the second reference lamp foot B to rotate to the reference position when rotating. In this embodiment, the reference position is 0°. At this time, the first photoelectric switch 25 will feed back the position of the first servo motor 19 to the PLC controller. After the first station 7 completes the clamping and rotation operation, the PLC controller will send a signal to reset the upper cylinder 11 and the lower cylinder 12 so that the angled lamp head 3 is released. At the same time, the PLC controller will send a signal to the driver so that the lamp head disk 1 continues to rotate. Meanwhile, the PLC controller will drive the first servo motor 19 to rotate according to the position feedback signal of the first servo motor 19. When the first protrusion 28 is reset into the first U-shaped groove 26, the first photoelectric switch 25 generates a reset signal and transmits the signal to the PLC controller. The PLC controller controls the first servo motor 19 to stop running, thereby resetting the first servo motor 19, and thus preparing for the rotation and positioning of the next angled lamp head 3 to be loaded.

[0028] The second workstation 8 is equipped with a second lamp holder 29 and a second lamp holder pressure rod 30 with corresponding upper and lower positions. When the lamp holder disk 1 drives the angled lamp holder 3 to rotate and completes the operation of the first workstation 7, the angled lamp holder 3 will rotate to the position between the second lamp holder 29 and the second lamp holder pressure rod 30 in the second workstation 8. The second lamp holder 29 and the second lamp holder pressure rod 30 are respectively connected to the first driving device on the second workstation 8 to drive the second lamp holder pressure rod 30 to move downward and drive the second lamp holder 29 to move upward, so that the angled lamp holder 3 is pressed tightly in the second workstation 8. The first drive device at the second station 8 includes a cam assembly, which includes a first cam 31 and a second cam 32. The first cam 31 and the second cam 32 are fixedly connected to a camshaft 33, and the high points of the lift of the first cam 31 and the second cam 32 are opposite. The camshaft 33 is connected to a driver. The first cam 31 meshes with a first transmission wheel 34, which is connected to a first limiting wheel 35. The first limiting wheel 35 is connected to a first rod 36, which is connected to a second lower connecting plate 52. The second lower connecting plate 52 is connected to a second lamp holder 29. The second cam 32 meshes with a second transmission wheel 37, which is connected to a second limiting wheel 38. The second limiting wheel 38 is connected to a second rod 39, which is connected to a second upper connecting plate. The second upper connecting plate is connected to a second lamp holder pressure rod 30. Specifically, when the driver drives the camshaft 33 to rotate, it will drive the first cam 31 and the second cam 32 to rotate. When the first cam 31 reaches its highest point of lift, it will drive the first transmission wheel 34 to rotate and rise, which in turn will drive the first limit wheel 35 to rise, which in turn will drive the first rod 36 to rise, which in turn will drive the second lower connecting plate 52 to rise, which in turn will drive the second lamp holder 29 to rise, so that the lower part of the angled lamp holder 3 on the second lamp holder 29 is limited and pressed. Simultaneously, since the high points of the first cam 31 and the second cam 32 are opposite, when the high point of the first cam 31 rises, the high point of the second cam 32 falls. This causes the second transmission wheel 37 to rotate and descend, which in turn causes the second limiting wheel 38 to descend, and the second rod 39 to descend, which in turn causes the second upper connecting plate to descend, thereby causing the second lamp head pressure rod 30 to descend. This limits and presses the upper part of the angled lamp head 3 on the second lamp head holder 29. The first limiting wheel 35 and the second limiting wheel 38 provide limits for the upward movement of the first rod 36 and the second rod 39, respectively. In this way, the downward movement of the second lamp head pressure rod 30 and the simultaneous upward movement of the second lamp head holder 29 limit and press the angled lamp head 3 in the vertical direction onto the second station 8. The second lamp holder 29 on the second station 8 is also connected to the second drive device, which is a second servo motor 40. The second servo motor 40 is fixed to the lower surface of the second lower connecting plate 52, and the second output shaft 42 of the second servo motor 40 is connected to the lower end of the second lamp holder 29. The second servo motor 40 is connected to the PLC controller.When the second servo motor 40 is started via the PLC controller, the rotation of the second output shaft 42 of the second servo motor 40 will drive the rotation of the second lamp holder 29. The upper edge of the second lamp holder 29 is provided with a second baffle 43. When the first lever 36 moves upward and the second lever 39 moves downward via the PLC controller, the angled lamp holder 3 is pressed into the second station 8, and then the second servo motor 40 is started. The clockwise rotation of the second servo motor 40 drives the rotation of the second lamp holder 29, which in turn drives the rotation of the second baffle 43. When the second baffle 43 touches the second reference lamp foot B of the angled lamp holder 3, it will push the second reference lamp foot B to drive the angled lamp holder 3 to rotate and rotate to the set position.

[0029] One end of the second lower connecting plate 52 is connected to the first plate 44. The first plate 44 is connected to the connecting post 45, and the connecting post 45 is connected to the second plate 16. The second plate 16 is provided with a second proximity switch 46, which is connected to the PLC controller. When the first rod 36 drives the second lamp holder 29 and the second proximity switch 46 to move upward, when the distance between the second proximity switch 46 and the lamp holder 1 reaches the set height, the second proximity switch 46 generates a signal and transmits the signal to the PLC controller. The second lower connecting plate 52 is provided with a second photoelectric switch 47, which is connected to the PLC controller. The second photoelectric switch 47 is provided with a second U-shaped groove 48. The outer periphery of the second lamp holder 29 is fitted with a second connecting block 49. The second connecting block 49 is provided with a second protrusion 50 on the side opposite to the second baffle 43. The second protrusion 50 can pass through the second U-shaped groove 48. When the second protrusion 50 is located in the second U-shaped groove 48, the second photoelectric switch 47 generates a signal and transmits the signal to the PLC controller.

[0030] Specifically, when the angled lamp head 3 rotates to the second station 8, and the tooth 22 on the follower wheel 21 rotates above the first proximity switch 24, the first proximity switch 24 receives a signal and transmits it to the PLC controller. The PLC controller then provides the running time for the second station 8. The PLC controller then activates the driver, which drives the camshaft 33 to rotate. The rotation of the camshaft 33 causes the first rod 36 to move upward while the second rod 39 moves downward. Simultaneously, the upward movement of the first rod 36 causes the first plate 44 to move upward, which in turn causes the connecting column 45 to move upward, which in turn causes the second plate 16 to move upward, which in turn causes the second proximity switch 46 to move upward. When the distance between the second proximity switch 46 and the lamp head plate 1 reaches the set height, the second proximity switch 46 generates a signal and transmits it to the PLC controller, thus pressing the angled lamp head 3 firmly into the second station 8. In this embodiment, the set height between the second proximity switch 46 and the lamp head plate 1 is 1mm. At this time, the second photoelectric switch 47 feeds back the position of the second servo motor 40 to the PLC controller. After the second station 8 completes the clamping and rotation operation, the first cam 31 and the second cam 32 will automatically reset due to the synchronous movement of the camshaft 33 and the rotating shaft 4 of the lamp head disk 1. The lamp head disk 1 will shift once, and the camshaft 33 will rotate once to release the angled lamp head 3. At the same time, the PLC controller will send a signal to the driver to make the lamp head disk 1 continue to rotate. The PLC controller will also drive the second servo motor 40 to rotate according to the position feedback signal of the second servo motor 40. When the second protrusion 50 is reset into the second U-shaped groove 48, the second photoelectric switch 47 generates a reset signal and transmits the signal to the PLC controller. The PLC controller controls the second servo motor 40 to stop running, thereby resetting the second servo motor 40 and preparing for the rotation and positioning of the next angled lamp head 3 to be loaded.

[0031] The feeding mechanism also has a semi-circular baffle 51, which helps prevent the angled lamp head 3 from shaking or shifting during rotation, and ensures the accuracy and stability of the angled lamp head 3 installation. The inner wall of the lamp head station slot 2 is provided with a first slot 54 and a second slot 55. The first slot 54 is located in the radial direction of the lamp head plate 1 to facilitate accurate identification of the position of the first reference lamp base A. The second slot 55 is located at a position corresponding to the second reference lamp base B, to facilitate the removal of the angled lamp head 3 from the lamp head station slot 2 after it has been correctly positioned.

[0032] The rotating positioning device for an automotive angled lamp head provided by this invention, in specific applications, involves the driver of the feeding mechanism driving the lamp head disk 1 to rotate, which in turn drives the follower wheel 21 below to rotate. When the convex tooth 22 on the follower wheel 21 rotates above the first proximity switch 24, the first proximity switch 24 receives a signal and transmits the signal to the PLC controller. The PLC controller then drives the movable end of the upper cylinder 11 to move downward while the movable end of the lower cylinder 12 moves upward, so that the angled lamp head 3 is pressed against the first station 7. This drives the first servo motor 19 to rotate the required angle, thereby driving the first lamp head base 9 to rotate. Consequently, the first baffle 20 on the first lamp head base 9 pushes the first reference lamp foot A or the second reference lamp foot B to a set position, i.e., the 0° position, eliminating the randomness of the initial direction of the reference lamp foot. At this time, the first reference lamp foot A is located at the 0° position or the 210° position. At this time, the first photoelectric switch 25 feeds back the position of the first servo motor 19 to the PLC controller. After the first station 7 completes the clamping and rotation operations, the PLC controller sends a signal to reset the upper cylinder 11 and lower cylinder 12, so that the angled lamp head 3 is released. At the same time, the PLC controller sends a signal to the driver to make the lamp head disk 1 continue to rotate. Simultaneously, the PLC controller drives the first servo motor 19 to rotate based on the position feedback signal of the first servo motor 19. When the first protrusion 28 is reset into the first U-shaped groove 26, the first photoelectric switch 25 generates a reset signal and transmits the signal to the PLC controller. The PLC controller controls the first servo motor 19 to stop running, thereby resetting the first servo motor 19. Then, under the rotation of the lamp head disk 1, the angled lamp head 3 enters the second station 8. When the angled lamp head 3 rotates to the second station 8, when the convex tooth 22 on the follower wheel 21 rotates above the first proximity switch 24, the first proximity switch 24 receives a signal and transmits the signal to the PLC controller. The PLC controller then activates the driver, which drives the camshaft 33 to rotate. The rotation of the camshaft 33 causes the first lever 36 to move upwards while the second lever 39 moves downwards. Simultaneously, the upward movement of the first lever 36 causes the second proximity switch 46 to move upwards. When the distance between the second proximity switch 46 and the lamp head plate 1 reaches a set height of 1mm, the second proximity switch 46 generates a signal and transmits it to the PLC controller, causing the angled lamp head 3 to be pressed firmly into the second station 8. The PLC controller then controls the second servo motor 40 to rotate, causing the second baffle 43 on the second lamp head holder 29 to rotate. The second baffle 43 pushes the second reference lamp foot B to rotate, forcibly positioning the first reference lamp foot A precisely from the 0° or 210° position to the 0° direction. At this time, the second photoelectric switch 47 feeds back the position of the second servo motor 40 to the PLC controller.After the second station 8 completes the clamping and rotation operations, the first cam 31 and the second cam 32 automatically reset due to the synchronous movement of the camshaft 33 and the rotating shaft 4 of the lamp head disk 1. The lamp head disk 1 shifts once, and the camshaft 33 rotates once, releasing the angled lamp head 3. Simultaneously, the PLC controller sends a signal to the driver to continue rotating the lamp head disk 1. The PLC controller also drives the second servo motor 40 to rotate based on the position feedback signal. When the second protrusion 50 resets into the second U-shaped groove 48, the second photoelectric switch 47 generates a reset signal and transmits it to the PLC controller. The PLC controller then stops the second servo motor 40, thus resetting it. This two-stage rotational positioning ensures that the first reference lamp foot A is aligned to 0°. The precise positioning of the first reference lamp foot A and the second reference lamp foot B significantly improves subsequent assembly and the pass rate. Throughout the process, the proximity switch, photoelectric switch, and PLC controller work together to ensure stable equipment operation and accurate positioning.

[0033] The following example, using a 150° angled lamp head, illustrates the usage of this rotary positioning device.

[0034] The angle between the first reference lamp base A and the second reference lamp base B is 150°. When the angled lamp head 3 enters the lamp head plate work station slot 2, the directions of the first reference lamp base A and the second reference lamp base B are random.

[0035] First, the angled lamp head 3 rotates to the first station 7. Driven by the upper cylinder 11 and the lower cylinder 12, the first lamp head holder 9 moves upward while the first lamp head pressing rod 10 moves downward to press the angled lamp head 3 firmly into the first station 7. The initial position of the first baffle 20 of the first lamp head holder 9 is set to 0°. The PLC controller controls the first servo motor 19 to drive the first lamp head holder 9 to rotate counterclockwise 360°. When the first lamp head holder 9 rotates, the first baffle 20 on the first lamp head holder 9 will contact the first reference lamp foot A or the second reference lamp foot B, thereby causing one of the reference lamp feet to rotate to the 0-degree position, eliminating the randomness of the initial direction of the reference lamp foot. At this time, the reference lamp foot of the angled lamp head 3 has two states:

[0036] The first reference lamp pin A is at the 0° position, and the second reference lamp pin B is at the 150° position. Figure 4 As shown;

[0037] The first reference lamp pin A is at a 210° position, and the second reference lamp pin B is at a 0° position. Figure 5 As shown;

[0038] Then, the angled lamp head 3 is rotated to the second station 8. The first cam 31 and the second cam 32 drive the second lamp head seat 29 to move upward and the second lamp head pressure rod 30 to move downward, so as to press the angled lamp head 3 again. At this time, the initial position of the second baffle 43 of the second lamp head seat 29 is set to 150°. The PLC controller controls the second servo motor 40 to drive the second lamp head seat 29 to rotate 360° clockwise. The second baffle 43 drives the second reference lamp foot B to rotate, forcibly positioning the first reference lamp foot A from the 0° position or the 210° position to the 0° direction.

[0039] It should be noted that during actual operation, when the angled lamp head 3 rotates on the lamp head disk 1, after the angled lamp head 3 leaves the first station 7, due to the vibration of the equipment itself, the angled lamp head 3 will have a slight deflection, that is, the angle position of the first reference lamp foot A or the second reference lamp foot B will be offset by an angle C. The angle range of the offset C is ±5°. Therefore, at the second station 8, the initial position of the second baffle 43 on the second lamp head holder 29 is set at 150° + |offset C|°, preferably 160°. The PLC controller controls the second servo motor 40 to drive the second lamp head holder 29 to rotate clockwise by 360° + |offset C|°, preferably 370°. Through the second baffle 43, the second reference lamp foot B is rotated, forcibly positioning the first reference lamp foot A from the 0° position or the 210° position to the 0° direction.

[0040] It should be noted that in actual operation, the initial position of the second baffle 43 on the second station 8 is not limited to 150° + | offset C |°. Any degree between 150° and 210° is acceptable. It is only necessary to rotate the second lamp holder 29 clockwise within the corresponding angle range and push the second reference lamp foot B, and accurately position the first reference lamp foot A from the 0° position or the 210° position to the 0° direction.

[0041] This invention has illustrated its principles and implementation methods using specific examples. The descriptions of these embodiments are merely illustrative of the method and its core ideas; furthermore, those skilled in the art will recognize that modifications may be made to the specific implementation methods and application scope based on the principles of this invention. Therefore, the content of this specification should not be construed as limiting the invention.

Claims

1. A rotating positioning device for an automotive angled lamp head, characterized in that: The rotary positioning device is mounted on the feeding mechanism, which includes a lamp head plate and a driver. The lamp head plate is used to hold angled lamp heads, and the angled lamp heads have a first reference lamp base and a second reference lamp base with an angle setting. The rotary positioning device includes a first station and a second station. The first station or the second station has lamp head holders and lamp head pressing rods with corresponding vertical positions. The lamp head plate rotates axially via the driver and rotates the angled lamp head onto the lamp head holder at the first station or the second station. The lamp head holder and the lamp head pressing rod are respectively connected to a first driving device, which can drive the lamp head pressing rod downwards. The driver moves the lamp holder upwards to press the angled lamp holder against the first or second station. The lamp holder is also connected to the second drive device. The first station is provided with a first baffle, and the second station is provided with a second baffle. The first baffle, driven by the second drive device at the first station, can push the first or second reference lamp foot to rotate to the reference position. The second baffle, driven by the second drive device at the second station, can push the second reference lamp foot to rotate so that the first reference lamp foot is located at the reference position. The driver, the first drive device, and the second drive device are respectively connected to the PLC controller.

2. The rotating positioning device for an automotive angled lamp head according to claim 1, characterized in that: The first workstation is equipped with a first lamp holder and a first lamp holder pressure rod. A first baffle is located on the upper edge of the first lamp holder. The first driving device at the first workstation includes an upper cylinder and a lower cylinder. The fixed end of the lower cylinder is fixedly connected to the lower cylinder bracket, which is fixedly connected to the feeding mechanism. The movable end of the lower cylinder is connected to the slide plate, which is connected to the first lower connecting plate. The first lower connecting plate is connected to the first lamp holder. The fixed end of the upper cylinder is fixedly connected to the upper cylinder bracket, which is fixedly connected to the lower cylinder bracket. The movable end of the upper cylinder is connected to the first upper connecting plate, which is connected to the first lamp holder pressure rod.

3. The rotating positioning device for an automotive angled lamp head according to claim 2, characterized in that: The second driving device on the first workstation is a first servo motor. The first servo motor is fixed to the lower surface of the first lower connecting plate, and the first output shaft of the first servo motor is connected to the lower end of the first lamp holder.

4. The rotating positioning device for an automotive angled lamp head according to claim 3, characterized in that: The second workstation is provided with a second lamp holder and a second lamp holder pressure rod. A second baffle is provided on the upper edge of the second lamp holder. The first driving device on the second workstation includes a cam assembly, which includes a first cam and a second cam. The first cam and the second cam are fixedly connected to a camshaft and the lift points of the first cam and the second cam are opposite. The camshaft is connected to the driver. The first cam meshes with a first transmission wheel. The first transmission wheel is connected to a first limit wheel. The first limit wheel is connected to a first rod. The first rod is connected to a second lower connecting plate. The second lower connecting plate is connected to the second lamp holder. The second cam meshes with a second transmission wheel. The second transmission wheel is connected to a second limit wheel. The second limit wheel is connected to a second rod. The second rod is connected to a second upper connecting plate. The second upper connecting plate is connected to the second lamp holder pressure rod.

5. The rotating positioning device for an automotive angled lamp head according to claim 4, characterized in that: The second drive device on the second workstation is a second servo motor. The second servo motor is fixed to the lower surface of the second lower connecting plate, and the second output shaft of the second servo motor is connected to the lower end of the second lamp holder.

6. The rotating positioning device for an automotive angled lamp head according to claim 5, characterized in that: The lamp head plate has several lamp head slots along its circumferential edge. These slots are used to place angled lamp heads. A rotating shaft is fixedly connected to the lower surface of the lamp head plate. The rotating shaft is connected to a driver. A follower wheel is fixedly sleeved at the lower end of the rotating shaft. The follower wheel has several protruding teeth, the number of which is the same as the number of lamp head slots. A mounting plate is fixedly connected to the lower part of the lower cylinder bracket. A first proximity switch is provided on the mounting plate. The first proximity switch is connected to a PLC controller. When the protruding teeth on the follower wheel rotate above the first proximity switch, the first proximity switch generates a signal and transmits the signal to the PLC controller.

7. The rotating positioning device for an automotive angled lamp head according to claim 6, characterized in that: One end of the second lower connecting plate is connected to the first plate, the first plate is connected to the connecting column, the connecting column is connected to the second plate, and the second plate is equipped with a second proximity switch. The second proximity switch is connected to the PLC controller. When the first rod drives the second lamp holder and the second proximity switch to move upward, when the distance between the second proximity switch and the lamp holder reaches the set height, the second proximity switch generates a signal and transmits the signal to the PLC controller.

8. The rotating positioning device for an automotive angled lamp head according to claim 7, characterized in that: The first lower connecting plate is provided with a first photoelectric switch, which is connected to the PLC controller. The first photoelectric switch is provided with a first U-shaped groove. A first connecting block is sleeved on the outer periphery of the first lamp holder. A first protrusion is provided on the same side of the first connecting block as the first baffle. The first protrusion can pass through the first U-shaped groove. When the first protrusion is located in the first U-shaped groove, the first photoelectric switch generates a signal and transmits the signal to the PLC controller.

9. The rotating positioning device for an automotive angled lamp head according to claim 8, characterized in that: The second lower connecting plate is provided with a second photoelectric switch, which is connected to the PLC controller. The second photoelectric switch is provided with a second U-shaped groove. A second connecting block is sleeved on the outer periphery of the second lamp holder. A second protrusion is provided on the side of the second connecting block opposite to the second baffle. The second protrusion can pass through the second U-shaped groove. When the second protrusion is located in the second U-shaped groove, the second photoelectric switch generates a signal and transmits the signal to the PLC controller.

10. The rotating positioning device for an automotive deflector lamp head according to any one of claims 1-9, characterized in that: The feeding mechanism also has a semi-circular baffle, and the inner wall of the lamp head station slot is provided with a first slot and a second slot.

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