An LED lamp bead wire welding batch welding auxiliary tool and a use method thereof

Abstract

The present application relates to the technical field of wire welding auxiliary tools, and discloses a kind of LED lamp bead wire welding batch welding auxiliary tools and its using method, including installation platform, the outer wall of installation platform is slidably connected with jacking ring, the top of jacking ring is provided with index disc, the bottom of index disc is rotatably connected with the top of installation platform, further comprising: flow transfer mechanism, flow transfer mechanism is installed and is set in the top of index disc, start cylinder extends, by pusher assembly makes clamping block rise, the lamp head of lamp bead is placed in the bottom of clamping block, then start cylinder retracts, under the action of the weight of counterweight block, let clamping block bottom and lamp bead lamp head adhere, then through extrusion assembly makes the position of clamping block keep stable, lamp bead only receives the weight of counterweight block, the extrusion force that lamp bead receives is soft and constant, keep low stress pressure state, effectively prevent that multiple extrusion can cause lamp bead lamp head local stress concentration, lead to lamp head indentation, cracking damage, improve the yield of lamp bead batch welding processing.

Description

Technical Field

[0001] This invention relates to the field of wire bonding auxiliary equipment technology, specifically to an auxiliary tool for batch welding of LED beads and its usage method. Background Technology

[0002] LED beads typically have multiple metal pins. Soldering LED beads involves soldering these metal pins to wires using a soldering method. During soldering, the metal pins of the LED bead need to be aligned with the wires to complete the soldering operation. To improve production efficiency and product yield, soldering auxiliary fixtures are usually used to facilitate the alignment of the metal pins of the LED bead with the external wires.

[0003] In the LED chip welding process, the lamp head of the chip is often fixed by a clamp on an indexing disc. The indexing disc then drives the chip to various stations such as loading, correction, shaping, welding, and inspection. The clamps mostly rely on spring preload to clamp and position the lamp head. When the chip is loaded and transported to the correction and shaping stations, the clamp needs to be released to release the lamp head constraint. After the process is completed, the chip is clamped again. Because the lamp head shell is brittle and the spring preload is too large, repeated squeezing by the clamp may cause damage to the outer layer of the lamp head, increasing the defect rate of the chip welding. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an auxiliary tool for batch welding of LED lamp beads, including a mounting platform, a lifting ring slidably connected to the outer wall of the mounting platform, an indexing disc provided on the top of the lifting ring, and the bottom of the indexing disc rotatably connected to the top of the mounting platform, and further comprising: A transfer mechanism is installed on the top of the indexing disc, and the transfer mechanism includes several clamping blocks installed on the top of the indexing disc; The positioning mechanism is installed on the inner wall of the indexing disc and includes several inclined grooves formed on the inner wall of the indexing disc. The limiting mechanism is installed on the inner wall of the indexing disc; In use, the clamping block is lifted by the positioning mechanism, the lamp bead is picked up by the external robotic arm and placed at the bottom of the clamping block, and then the clamping block is lowered to fit the lamp bead by the positioning mechanism.

[0005] Preferably, the transfer mechanism further includes: The drive component is installed on the inner wall of the mounting platform; The counterweight assembly is installed on top of the clamping block.

[0006] Preferably, the positioning mechanism further includes: The jacking assembly is installed at the bottom of the indexing disc; The extrusion assembly is installed on the inner wall of the inclined groove.

[0007] The limiting mechanism includes: A blocking component is installed on the inner wall of the indexing disc.

[0008] Preferably, the drive assembly includes a servo motor fixedly connected to the top of the inner wall of the mounting platform, and the top of the output end of the servo motor is fixedly connected to the bottom of the indexing disc. A cylinder is fixedly connected to the bottom of the inner wall of the mounting platform, and the top of the cylinder's output end is fixedly connected to the bottom of the lifting ring. The process involves starting a servo motor to rotate the indexing disc, adjusting the position of the clamping block, and then using a starting cylinder to push the lifting ring upward.

[0009] Preferably, the counterweight assembly includes a counterweight block fixedly connected to the top of the clamping block, and a plurality of limiting rods are slidably connected to the inner wall of the indexing disc, the outer walls of the plurality of limiting rods being fixedly connected to the inner walls of the plurality of clamping blocks.

[0010] Preferably, the pushing assembly includes a plurality of spring rods disposed at the bottom of the indexing disc, the outer walls of the plurality of spring rods being slidably connected to the inner walls of the plurality of limiting rods, and the tops of the plurality of spring rods being rotatably connected to a plurality of connecting rods. When the lifting ring rises, the protrusion at the top of the lifting ring will contact the spring rod at the corresponding work station, thereby pushing the spring rod to rise and allowing the spring rod to accumulate rebound force.

[0011] The extrusion assembly includes extrusion blocks that are slidably connected to the inner wall of the inclined groove. The top of each extrusion block is fixedly connected to a spring plate, and the bottom of each extrusion block is rotatably connected to the inner wall of a number of connecting rods. The device includes 28 extrusion blocks and 28 spring plates. When the spring rod rises, it pushes the connecting rod to rotate, which in turn pushes the extrusion block to move away from the limit rod. As the spring rod continues to rise, it will contact the limit rod, thereby pushing the limit rod and the clamping block to rise, increasing the distance between the bottom of the clamping block and the top of the indexing disc. Then, an external robotic arm will grab the LED bead and place the LED bead's lamp head at the bottom of the clamping block. After placement, the cylinder retracts, causing the lifting ring to descend and releasing the pressure on the spring rod. The spring rod's rebound force is then released, allowing it to descend and reset. The upward thrust on the limit rod disappears, and under the weight of the counterweight, the limit rod and the clamping block slide down synchronously until the bottom of the clamping block is in contact with the lamp head. The ball bearings inside the limit rod reduce the frictional resistance of the downward movement, and the weight of the counterweight presses down on the lamp, thus limiting the lamp. During the descent and reset process of the spring rod, it also pulls the connecting rod to rotate. The extrusion block is pulled towards the limiting rod by the connecting rod until it is in contact with the outer wall of the limiting rod again. The spring rod is normally in a compressed state and has elastic potential energy. Through this elastic potential energy, the extrusion block can be used to press the limiting rod, thereby fixing the limiting rod and keeping the position of the clamping block stable. This completes the final fixing of the lamp bead. The lamp bead is only subjected to the weight of the counterweight. The extrusion force on the lamp bead is gentle and constant, which ensures that the outer layer of the lamp bead head is always subjected to uniform force and maintains a low stress pressure state. This effectively prevents local stress concentration in the lamp bead head caused by repeated extrusion, which can lead to lamp head indentation, cracking and damage, and improves the yield rate of batch welding of lamp beads. After the LED beads are fixed, the servo motor is started to rotate, which drives the indexing disc to rotate intermittently. The clamping block drives the LED beads to various stations such as loading, correction, shaping, welding, and inspection in sequence. After each station is reached, the servo motor will stop running, locking the indexing disc in position. After the LED bead completes the corresponding processing at that station, the servo motor will start again, allowing the indexing disc to transport the LED bead to the next station. As the pressing block moves away from the limiting rod, it drives the spring plate to move. As the spring plate continues to move, it comes into contact with the inclined surface of the inclined groove, causing the spring plate to be compressed and deformed. This allows the spring plate to accumulate rebound force, increasing the moving resistance of the pressing block. During the descent and reset process of the spring rod, when the pressing block is pulled by the connecting rod, the rebound force of the spring plate will form a reverse damping, slowing down the moving speed of the pressing block. This slows down the moving speed of the pressing block and the reset speed of the spring rod, ensuring that the limiting rod and the clamping block have sufficient time to fall and fully fit with the lamp head. This effectively prevents the clamping block from falling too slowly due to its own weight, and prevents the spring rod from resetting too quickly, which would cause the clamping block to not fit with the lamp head. In this case, the pressing block would squeeze the limiting rod, preventing the limiting rod from continuing to descend and affecting the fitting and positioning of the lamp head.

[0012] Preferably, the blocking assembly includes a plurality of connecting plates slidably connected to the inner wall of the indexing disc, and the inner walls of the plurality of connecting plates are all slidably connected to spring plates; The inner walls of several clamping blocks are slidably connected to baffle plates, and the outer walls of several spring plates are slidably connected to the inner walls of several baffle plates. The outer walls of several spring plates are slidably connected to the top inner walls of several clamping blocks, and the side of several connecting plates away from the spring plates is fixedly connected to the side of several extrusion blocks near the blocking plate away from the lifting ring. When the clamping block rises, it will drive the blocking plate and spring plate to rise. When the squeezing block on the side close to the blocking plate moves away from the limit rod, it will drive the connecting plate to move. The connecting plate will push the spring plate to move. As the spring plate continues to move, the protruding part on its right outer wall will contact the blocking plate, thereby driving the blocking plate to move. When the clamping block presses down on the lamp head of the LED bead, as the pressing block moves towards the limiting rod, it drives the connecting plate and spring plate to move towards the clamping block. As the spring plate continues to move, it pushes the blocking plate to contact the end of the lamp head. As the spring plate continues to move, the spring of the spring plate is compressed, accumulating rebound force. The rebound force of the spring increases the clamping force of the blocking plate on the end of the LED bead, restricting the lateral movement of the LED bead. This effectively prevents the large inertial force generated during each rotation and stop of the indexing disc when transporting LED beads from causing lateral movement of the LED bead, resulting in metal pin misalignment and affecting the accurate alignment of the metal pins and wires during soldering.

[0013] A method for using an auxiliary tool for batch soldering of LED beads includes the following steps: S1: Equipment Start-up: When LED beads need to be fixed, first start the cylinder to extend and push the lifting ring to rise. The protrusion on the top of the lifting ring will contact the spring rod of the corresponding workstation, thereby pushing the spring rod to rise. S2: Workpiece placement: As the spring rod continues to rise, it will contact the limit rod, thereby pushing the limit rod and the clamping block to rise, increasing the distance between the bottom of the clamping block and the top of the indexing disc. Then, the external robot arm will grab the lamp bead and place the lamp head of the lamp bead at the bottom of the clamping block. S3: Workpiece positioning: After placement, the cylinder retracts, causing the lifting ring to descend, thus releasing the pressure on the spring rod. The spring rod's rebound force is released, allowing it to descend and reset. The upward thrust on the limit rod disappears, and under the weight of the counterweight, the limit rod and the clamping block slide down synchronously until the bottom of the clamping block is in contact with the lamp head for positioning.

[0014] The present invention has the following beneficial effects: This invention, when fixing LED beads, first activates the cylinder to extend, pushing the lifting ring upwards and the spring rod upwards. The clamping block is then raised via the pushing assembly. Subsequently, an external robotic arm places the lamp head of the LED bead at the bottom of the clamping block. After placement, the cylinder retracts, and under the weight of the counterweight, the limiting rod and the clamping block slide down synchronously until the bottom of the clamping block is in contact with the lamp head of the LED bead. Then, the pressing assembly stabilizes the position of the clamping block, completing the final fixing of the LED bead. The LED bead is only subjected to the weight of the counterweight, and the pressing force on the LED bead is gentle and constant, maintaining a low-stress pressure state. This effectively prevents local stress concentration in the lamp head caused by repeated pressing, which can lead to lamp head indentation, cracking, and damage, thus improving the yield rate of batch welding of LED beads.

[0015] (2) In this invention, the extrusion block will drive the spring sheet to move, and the spring sheet will contact the inclined surface of the inclined groove, thereby causing the spring sheet to be extruded and deformed. During the process of the spring rod descending and resetting, when the extrusion block is pulled by the connecting rod, the rebound force of the spring sheet will form reverse damping, which will slow down the movement speed of the extrusion block, thereby slowing down the movement speed of the extrusion block, ensuring that the limiting rod and the clamping block have enough time to fall and fully fit with the lamp head, effectively preventing the clamping block from falling slowly due to the weight of the counterweight block, and the spring rod from resetting too quickly, which would cause the clamping block to not fit with the lamp head, and the extrusion block would squeeze the limiting rod, making the limiting rod unable to continue to descend, affecting the fitting and positioning of the lamp head.

[0016] (3) In this invention, after the clamping block is attached to the lamp head of the lamp bead, the blocking component makes the blocking plate contact the end of the lamp head. The spring plate continues to move, and the spring of the spring plate will be compressed, accumulating rebound force. The rebound force of the spring increases the clamping force of the blocking plate on the end of the lamp bead, restricting the lateral movement of the lamp bead. This effectively prevents the large inertial force generated during each rotation stop when the indexing disc transports the LED lamp bead, which would cause the lamp bead to move laterally, causing the metal pins to deviate and affecting the accurate alignment of the metal pins and wires during welding.

[0017] (4) In this invention, the clamping block is lowered and fits against the lamp head of the lamp bead by the weight of the counterweight. For larger lamp heads, the clamping block will lower a shorter distance to fit against the lamp head. For smaller lamp heads, the clamping block needs to lower a longer distance to fit against the lamp head. By relying on the weight of the counterweight to press down the lamp bead, the downward pressure on lamp heads of various sizes tends to be uniform, which can limit and fix lamp beads of various sizes, and has stronger versatility. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the mounting platform of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the indexing disk of the present invention; Figure 5 This is a cross-sectional schematic diagram of the clamping block of the present invention; Figure 6 For the present invention Figure 5Enlarged view of point A in the middle; Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 8 This is a top sectional view of the limiting rod of the present invention; Figure 9 This is a schematic diagram of the working process of the clamping block of the present invention. Figure 10 This is a schematic diagram of the workflow of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Transfer mechanism; 11. Drive assembly; 12. Counterweight assembly; 13. Mounting platform; 14. Indexing disc; 15. Lifting ring; 101. Clamping block; 111. Servo motor; 112. Cylinder; 121. Counterweight block; 122. Limiting rod; 2. Positioning mechanism; 21. Pushing assembly; 22. Extrusion assembly; 201. Inclined groove; 211. Spring rod; 212. Connecting rod; 221. Extrusion block; 222. Spring plate; 3. Limiting mechanism; 31. Blocking assembly; 311. Connecting plate; 312. Spring plate; 313. Blocking plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figure 1 - Figure 5 This invention relates to an auxiliary tool for batch welding of LED lamp beads, comprising a mounting platform 13, a lifting ring 15 slidably connected to the outer wall of the mounting platform 13, an indexing disc 14 disposed on the top of the lifting ring 15, and the bottom of the indexing disc 14 rotatably connected to the top of the mounting platform 13, and further comprising: The transfer mechanism 1 is installed on the top of the indexing disc 14, and includes a plurality of clamping blocks 101 disposed on the top of the indexing disc 14. Positioning mechanism 2 is installed on the inner wall of indexing disc 14. Positioning mechanism 2 includes a plurality of inclined grooves 201 formed on the inner wall of indexing disc 14. Limiting mechanism 3 is installed on the inner wall of indexing disc 14; The clamping blocks 101 are provided with fourteen units, and the inclined slots 201 are provided with twenty-eight units. In use, the clamping blocks 101 are lifted by the positioning mechanism 2, and then the lamp beads are picked up by the external robotic arm and placed at the bottom of the clamping blocks 101. Then the clamping blocks 101 are lowered by the positioning mechanism 2 to fit with the lamp beads.

[0023] The circulation mechanism 1 also includes: Drive component 11 is installed on the inner wall of mounting platform 13; The counterweight assembly 12 is installed on top of the clamping block 101.

[0024] Positioning mechanism 2 also includes: The jacking assembly 21 is installed at the bottom of the indexing disc 14; The extrusion assembly 22 is installed on the inner wall of the inclined groove 201.

[0025] Limiting mechanism 3 includes: The blocking component 31 is installed on the inner wall of the indexing disc 14.

[0026] Example 2, please refer to Figure 3 - Figure 10 The present invention is an auxiliary tool for batch welding of LED lamp beads. Based on the first embodiment, the driving component 11 includes a servo motor 111 fixedly connected to the top of the inner wall of the mounting platform 13, and the top of the output end of the servo motor 111 is fixedly connected to the bottom of the indexing disk 14. A cylinder 112 is fixedly connected to the bottom of the inner wall of the mounting platform 13, and the top of the output end of the cylinder 112 is fixedly connected to the bottom of the lifting ring 15. Specifically, the servo motor 111 is started to drive the indexing disc 14 to rotate, the position of the clamping block 101 is adjusted, and the lifting ring 15 is pushed up by the starting cylinder 112.

[0027] The counterweight assembly 12 includes a counterweight block 121 fixedly connected to the top of the clamping block 101, and a plurality of limiting rods 122 slidably connected to the inner wall of the indexing disc 14. The outer walls of the plurality of limiting rods 122 are all fixedly connected to the inner walls of the plurality of clamping blocks 101. The counterweight 121 has fourteen components, and the inner walls of several limit rods 122 are rotatably connected with three balls to reduce the friction of sliding. The limit rods 122 have fourteen components.

[0028] The jacking assembly 21 includes a plurality of spring rods 211 disposed at the bottom of the indexing disc 14. The outer walls of the plurality of spring rods 211 are slidably connected to the inner walls of the plurality of limiting rods 122. The tops of the plurality of spring rods 211 are rotatably connected to a plurality of connecting rods 212. Among them, several spring rods 211 are normally in a compressed state. There are fourteen spring rods 211 and twenty-eight connecting rods 212. The top of one spring rod 211 is rotatably connected to two connecting rods 212. When the lifting ring 15 rises, the protrusion on the top of the lifting ring 15 will contact the spring rod 211 at the corresponding work position, thereby pushing the spring rod 211 to rise and allowing the spring rod 211 to accumulate rebound force.

[0029] The extrusion assembly 22 includes extrusion blocks 221 that are slidably connected to the inner wall of the inclined groove 201. The top of each of the extrusion blocks 221 is fixedly connected to a spring sheet 222, and the bottom of each of the extrusion blocks 221 is rotatably connected to the inner wall of each of the connecting rods 212. The compression block 221 is provided with twenty-eight pieces, and the spring plate 222 is provided with twenty-eight pieces. When the spring rod 211 rises, it will push the connecting rod 212 to rotate. The connecting rod 212 pushes the compression block 221 to move away from the limiting rod 122. As the spring rod 211 continues to rise, it will contact the limiting rod 122, thereby pushing the limiting rod 122 and the clamping block 101 to rise, increasing the distance between the bottom of the clamping block 101 and the top of the indexing disk 14. Then, the external robot arm will grab the lamp bead and place the lamp head of the lamp bead at the bottom of the clamping block 101. After placement, the cylinder 112 retracts, causing the lifting ring 15 to descend, thus releasing the pressure on the spring rod 211. The spring rod 211's rebound force is released, allowing it to descend and reset. The upward thrust on the limit rod 122 disappears. Under the weight of the counterweight 121, the limit rod 122 and the clamping block 101 slide down synchronously until the bottom of the clamping block 101 contacts the lamp head. The ball bearings inside the limit rod 122 reduce the frictional resistance during descent. Figure 5 As shown at point G, the weight of the counterweight 121 presses down on the lamp bead, thereby limiting the lamp bead. During the process of the spring rod 211 descending and resetting, it will also pull the connecting rod 212 to rotate. The connecting rod 212 pulls the extrusion block 221 towards the limiting rod 122 until the extrusion block 221 is once again in contact with the outer wall of the limiting rod 122. The spring rod 211 is normally in a compressed state and has elastic potential energy. Through this elastic potential energy, the extrusion block 221 can be used to press the limiting rod 122, thereby fixing the limiting rod 122 and keeping the position of the clamping block 101 stable. This completes the final fixing of the lamp bead. The lamp bead is only subjected to the weight of the counterweight block 121. The extrusion force on the lamp bead is gentle and constant, which ensures that the outer layer of the lamp bead head is always subjected to uniform force and maintains a low stress pressure state. This effectively prevents local stress concentration in the lamp bead head caused by repeated extrusion, which can lead to lamp head indentation, cracking and damage, and improves the yield rate of batch welding of lamp beads. After the LED beads are fixed, the servo motor 111 is started to rotate, which drives the indexing disk 14 to rotate intermittently. The clamping block 101 drives the LED beads to each station in sequence, such as feeding, correction, shaping, welding, and inspection. After each station is reached, the servo motor 111 will stop running, locking the indexing disk 14 in position. After the LED beads complete the corresponding processing at the station, the servo motor 111 will start again, allowing the indexing disk 14 to transport the LED beads to the next station. As the extrusion block 221 moves away from the limit rod 122, it drives the spring plate 222 to move. As the spring plate 222 continues to move, it comes into contact with the inclined surface of the inclined groove 201, causing it to be compressed and deformed. This allows the spring plate 222 to accumulate a rebound force, increasing the resistance to the movement of the extrusion block 221. During the descent and reset process of the spring rod 211, when the extrusion block 221 is pulled by the connecting rod 212, the rebound force of the spring plate 222 forms a reverse damping, slowing down the movement of the extrusion block. The moving speed of 221 is reduced, thereby slowing down the moving speed of the pressing block 221 and the reset speed of the spring rod 211. This ensures that the limiting rod 122 and the clamping block 101 have sufficient time to fall and fully fit with the lamp head. This effectively prevents the clamping block 101 from falling too slowly due to its own weight, and the spring rod 211 from resetting too quickly. Otherwise, the clamping block 101 will not fit with the lamp head, and the pressing block 221 will press the limiting rod 122, preventing the limiting rod 122 from continuing to descend and affecting the fitting and positioning of the lamp head.

[0030] The blocking assembly 31 includes a plurality of connecting plates 311 slidably connected to the inner wall of the indexing disc 14, and spring plates 312 are slidably connected to the inner walls of the plurality of connecting plates 311. The inner walls of several clamping blocks 101 are slidably connected to blocking plates 313, and the outer walls of several spring plates 312 are slidably connected to the inner walls of several blocking plates 313. The outer walls of several spring plates 312 are slidably connected to the top inner walls of several clamping blocks 101, and the side of several connecting plates 311 away from the spring plates 312 is fixedly connected to the side of several pressing blocks 221 near the side of the blocking plate 313 away from the lifting ring 15. The system includes fourteen connecting plates 311, fourteen spring plates 312, and fourteen blocking plates 313. When the clamping block 101 rises, it causes the blocking plates 313 and spring plates 312 to rise as well. When the pressing block 221 near the blocking plate 313 moves away from the limiting rod 122, it causes the connecting plates 311 to move. The connecting plates 311 then push the spring plates 312 to move. As the spring plates 312 continue to move, the protrusion on their right outer wall contacts the blocking plates 313, thereby causing the blocking plates 313 to move. Figure 7 The position of H in the middle is shown; When the clamping block 101 presses down on the lamp head of the LED bead, the pressing block 221 moves towards the limiting rod 122, which in turn drives the connecting plate 311 and the spring plate 312 to move towards the clamping block 101. As the spring plate 312 continues to move, it pushes the blocking plate 313 to contact the end of the lamp head. Figure 9 As shown, as the spring plate 312 continues to move, the spring in the spring plate 312 will be compressed, accumulating rebound force. The rebound force of the spring increases the clamping force of the blocking plate 313 on the end of the lamp bead, restricting the lateral movement of the lamp bead. This effectively prevents the indexing disc 14 from generating a large inertial force during each rotation and stop when transporting LED lamp beads, which would cause the lamp bead to move laterally, causing the metal pins to shift and affecting the accurate alignment of the metal pins and wires during soldering.

[0031] The usage method of this LED chip wire bonding batch soldering auxiliary tool includes the following steps: S1: Equipment start-up: When it is necessary to fix the LED beads, first start the cylinder 112 to extend and push the lifting ring 15 to rise. The protrusion on the top of the lifting ring 15 will contact the spring rod 211 of the corresponding station, thereby pushing the spring rod 211 to rise. S2: Workpiece placement: As the spring rod 211 continues to rise, it will contact the limit rod 122, thereby pushing the limit rod 122 and the clamping block 101 to rise, increasing the distance between the bottom of the clamping block 101 and the top of the indexing disk 14. Then, the external robot arm will grab the lamp bead and place the lamp head of the lamp bead at the bottom of the clamping block 101. S3: Workpiece positioning: After placement, the cylinder 112 retracts, causing the lifting ring 15 to descend, thus releasing the pressure on the spring rod 211. The spring rod 211's rebound force is released, causing it to descend and reset. The upward thrust on the limit rod 122 disappears. Under the weight of the counterweight 121, the limit rod 122 and the clamping block 101 slide down synchronously until the bottom of the clamping block 101 is in contact with the lamp bead and lamp head for positioning.

[0032] The number of the above structures is not limited. Those skilled in the art can freely set them according to actual needs, as long as the above structures are installed at the connection positions of the corresponding structures.

[0033] A specific application of this embodiment is as follows: When using this invention, if it is necessary to fix the LED beads, first start the cylinder 112 to extend and push the lifting ring 15 to rise. The protrusion on the top of the lifting ring 15 will contact the spring rod 211 at the corresponding station, thereby pushing the spring rod 211 to rise and allowing the spring rod 211 to accumulate rebound force. When the spring rod 211 rises, it will push the connecting rod 212 to rotate. Through the connecting rod 212, the pressing block 221 will be pushed to move away from the limiting rod 122. As the spring rod 211 continues to rise, it will contact the limiting rod 122, thereby pushing the limiting rod 122 and the clamping block 101 to rise, increasing the distance between the bottom of the clamping block 101 and the top of the indexing disc 14. Then, the external robot arm will grab the LED beads and place the lamp head of the LED beads at the bottom of the clamping block 101. After placement, the cylinder 112 retracts, causing the lifting ring 15 to descend, thus releasing the pressure on the spring rod 211. The spring rod 211's rebound force is released, allowing it to descend and reset. The upward thrust on the limit rod 122 disappears. Under the weight of the counterweight 121, the limit rod 122 and the clamping block 101 slide down synchronously until the bottom of the clamping block 101 contacts the lamp head. The ball bearings inside the limit rod 122 reduce the frictional resistance during descent. Figure 5 As shown at point G, the weight of the counterweight 121 presses down on the lamp bead, thereby limiting the lamp bead. During the process of the spring rod 211 descending and resetting, it will also pull the connecting rod 212 to rotate. The connecting rod 212 pulls the extrusion block 221 towards the limiting rod 122 until the extrusion block 221 is once again in contact with the outer wall of the limiting rod 122. The spring rod 211 is normally in a compressed state and has elastic potential energy. Through this elastic potential energy, the extrusion block 221 can be used to press the limiting rod 122, thereby fixing the limiting rod 122 and keeping the position of the clamping block 101 stable. This completes the final fixing of the lamp bead. The lamp bead is only subjected to the weight of the counterweight block 121. The extrusion force on the lamp bead is gentle and constant, which ensures that the outer layer of the lamp bead head is always subjected to uniform force and maintains a low stress pressure state. This effectively prevents local stress concentration in the lamp bead head caused by repeated extrusion, which can lead to lamp head indentation, cracking and damage, and improves the yield rate of batch welding of lamp beads. After the LED beads are fixed, the servo motor 111 is started to rotate, which drives the indexing disk 14 to rotate intermittently. The clamping block 101 drives the LED beads to each station in sequence, such as feeding, correction, shaping, welding, and inspection. After each station is reached, the servo motor 111 will stop running, locking the indexing disk 14 in position. After the LED beads complete the corresponding processing at the station, the servo motor 111 will start again, allowing the indexing disk 14 to transport the LED beads to the next station. As the extrusion block 221 moves away from the limit rod 122, it drives the spring plate 222 to move. As the spring plate 222 continues to move, it comes into contact with the inclined surface of the inclined groove 201, causing it to be compressed and deformed. This allows the spring plate 222 to accumulate a rebound force, increasing the resistance to the movement of the extrusion block 221. During the descent and reset process of the spring rod 211, when the extrusion block 221 is pulled by the connecting rod 212, the rebound force of the spring plate 222 forms a reverse damping, slowing down the movement of the extrusion block. The moving speed of 221 is reduced, thereby slowing down the moving speed of the pressing block 221 and the reset speed of the spring rod 211. This ensures that the limiting rod 122 and the clamping block 101 have sufficient time to fall and fully fit with the lamp head. This effectively prevents the clamping block 101 from falling too slowly due to its own weight, and the spring rod 211 from resetting too quickly. This would cause the clamping block 101 to not fit with the lamp head, and the pressing block 221 would then press the limiting rod 122, preventing the limiting rod 122 from continuing to fall and affecting the fitting and positioning of the lamp head. When the clamping block 101 rises, it will cause the blocking plate 313 and the spring plate 312 to rise. When the pressing block 221 near the blocking plate 313 moves away from the limiting rod 122, it will cause the connecting plate 311 to move. The connecting plate 311 will push the spring plate 312 to move. As the spring plate 312 continues to move, the protrusion on its right outer wall will contact the blocking plate 313, thereby causing the blocking plate 313 to move. Figure 7 The position of H in the middle is shown; When the clamping block 101 presses down on the lamp head of the LED bead, the pressing block 221 moves towards the limiting rod 122, which in turn drives the connecting plate 311 and the spring plate 312 to move towards the clamping block 101. As the spring plate 312 continues to move, it pushes the blocking plate 313 to contact the end of the lamp head. Figure 9 As shown, as the spring plate 312 continues to move, the spring of the spring plate 312 will be compressed, accumulating rebound force. The rebound force of the spring increases the pressing force of the blocking plate 313 against the end of the lamp bead, restricting the lateral movement of the lamp bead. This effectively prevents the indexing disc 14 from generating a large inertial force during each rotation and stop when transporting LED lamp beads, which would cause the lamp bead to move laterally, causing the metal pins to shift and affecting the accurate alignment of the metal pins and wires during soldering. The weight of the counterweight 121 causes the clamping block 101 to descend and fit against the lamp head of the LED. For larger lamp heads, the clamping block 101 will descend a shorter distance to fit against the lamp head. For smaller lamp heads, the clamping block 101 needs to descend a longer distance to fit against the lamp head. By relying on the weight of the counterweight 121 to press down on the LED, the downward pressure on various sizes of lamp heads tends to be uniform, which can limit and fix LEDs of various sizes, making it more versatile.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary tool for batch welding of LED lamp beads, comprising a mounting platform (13), wherein a lifting ring (15) is slidably connected to the outer wall of the mounting platform (13), and a dividing disc (14) is provided on the top of the lifting ring (15), the bottom of the dividing disc (14) being rotatably connected to the top of the mounting platform (13), characterized in that, Also includes: The transfer mechanism (1) is installed on the top of the indexing disk (14) and includes a plurality of clamping blocks (101) on the top of the indexing disk (14). Positioning mechanism (2), the positioning mechanism (2) is installed on the inner wall of the indexing disk (14), the positioning mechanism (2) includes a plurality of inclined grooves (201) formed on the inner wall of the indexing disk (14). A limiting mechanism (3) is installed on the inner wall of the indexing disc (14); In use, the clamping block (101) is lifted by the positioning mechanism (2), and then the lamp bead is picked up by the external robotic arm and placed at the bottom of the clamping block (101). Then the clamping block (101) is lowered and put into contact with the lamp bead by the positioning mechanism (2).

2. The auxiliary tool for batch welding of LED lamp beads according to claim 1, characterized in that: The transfer mechanism (1) further includes: A drive assembly (11) is mounted on the inner wall of the mounting platform (13); A counterweight assembly (12) is mounted on top of the clamping block (101).

3. The auxiliary tool for batch welding of LED lamp beads according to claim 2, characterized in that: The positioning mechanism (2) also includes: A push assembly (21) is installed at the bottom of the indexing disc (14); The extrusion assembly (22) is installed on the inner wall of the inclined groove (201).

4. The auxiliary tool for batch welding of LED lamp beads according to claim 3, characterized in that: The limiting mechanism (3) includes: A blocking assembly (31) is installed on the inner wall of the indexing disk (14).

5. The auxiliary tool for batch welding of LED lamp beads according to claim 2, characterized in that: The drive assembly (11) includes a servo motor (111) fixedly connected to the top of the inner wall of the mounting platform (13), and the top of the output end of the servo motor (111) is fixedly connected to the bottom of the indexing disk (14). A cylinder (112) is fixedly connected to the bottom of the inner wall of the mounting platform (13), and the top of the output end of the cylinder (112) is fixedly connected to the bottom of the lifting ring (15). In this process, the indexing disc (14) is rotated by starting the servo motor (111), the position of the clamping block (101) is adjusted, and the lifting ring (15) is pushed up by starting the cylinder (112).

6. The auxiliary tool for batch welding of LED lamp beads according to claim 4, characterized in that: The counterweight assembly (12) includes a counterweight block (121) fixedly connected to the top of the clamping block (101). The inner wall of the indexing disc (14) is slidably connected with a number of limiting rods (122), and the outer walls of the number of limiting rods (122) are fixedly connected to the inner walls of the number of clamping blocks (101).

7. The auxiliary tool for batch welding of LED lamp beads according to claim 6, characterized in that: The push assembly (21) includes a plurality of spring rods (211) disposed at the bottom of the indexing disc (14). The outer walls of the plurality of spring rods (211) are slidably connected to the inner walls of the plurality of limiting rods (122). The tops of the plurality of spring rods (211) are rotatably connected to a plurality of connecting rods (212). When the lifting ring (15) rises, it will come into contact with the spring rod (211), thereby pushing the spring rod (211) to rise and allowing the spring rod (211) to accumulate rebound force.

8. The auxiliary tool for batch welding of LED lamp beads according to claim 7, characterized in that: The extrusion assembly (22) includes an extrusion block (221) slidably connected to the inner wall of the inclined groove (201), and a spring sheet (222) is fixedly connected to the top of each of the extrusion blocks (221), and the bottom of each of the extrusion blocks (221) is rotatably connected to the inner wall of a number of connecting rods (212). When the spring rod (211) rises, it will push the connecting rod (212) to rotate, and the connecting rod (212) will push the extrusion block (221) and the spring plate (222) to move.

9. The auxiliary tool for batch welding of LED lamp beads according to claim 8, characterized in that: The blocking assembly (31) includes a plurality of connecting plates (311) slidably connected to the inner wall of the indexing disc (14), and the inner walls of the plurality of connecting plates (311) are slidably connected to spring plates (312). The inner walls of several clamping blocks (101) are slidably connected with blocking plates (313), and the outer walls of several spring plates (312) are slidably connected with the inner walls of several blocking plates (313). The outer walls of several spring plates (312) are slidably connected to the top inner walls of several clamping blocks (101), and the side of several connecting plates (311) away from the spring plates (312) is fixedly connected to the side of several pressing blocks (221) near the side of the blocking plate (313) away from the lifting ring (15). When the extrusion block (221) moves, it will drive the connecting plate (311) to move, thereby pushing the spring plate (312) to move. As the spring plate (312) continues to move, it will come into contact with the blocking plate (313), thereby driving the blocking plate (313) to move.

10. A method for using an auxiliary tool for batch welding of LED lamp beads, comprising the auxiliary tool for batch welding of LED lamp beads as described in claims 1-9, characterized in that: Includes the following steps, S1: Equipment start-up: When it is necessary to fix the LED beads, first start the cylinder (112) to extend and push the lifting ring (15) to rise. The protrusion on the top of the lifting ring (15) will contact the spring rod (211) of the corresponding station, thereby pushing the spring rod (211) to rise. S2: Workpiece placement: As the spring rod (211) continues to rise, it will contact the limit rod (122), thereby pushing the limit rod (122) and the clamping block (101) to rise, increasing the distance between the bottom of the clamping block (101) and the top of the indexing disc (14). Then, the lamp bead is picked up by the external robot arm, and the lamp head of the lamp bead is placed at the bottom of the clamping block (101). S3: Workpiece positioning: After placement, start the cylinder (112) to retract, drive the lifting ring (15) to descend, cancel the compression on the spring rod (211), the spring force of the spring rod (211) will be released, and it will descend and reset itself. The upward thrust on the limit rod (122) will disappear. Under the action of the counterweight (121) itself, the limit rod (122) and the clamping block (101) will slide down synchronously until the bottom of the clamping block (101) is in contact with the lamp head and positioned.

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