Three-in-one bonding and positioning device for photovoltaic silicon rod

Abstract

A three-in-one bonding and positioning device for a photovoltaic silicon rod, comprising a supporting assembly (1), a positioning assembly (2), a position limiting mechanism (6), a limiting mechanism (8), a marking mechanism (7), a wafer carrier (3), a plastic plate (4), and a silicon rod body (5). The supporting assembly (1) comprises rod bonding fixtures (11), fixing seats (12), positioning columns (13), first positioning blocks (14), a fixture bottom plate (15), and a second positioning block (16); the fixing seats (12) are mounted on the tops of the rod bonding fixtures (11); the positioning columns (13) are mounted on the tops of the fixing seats (12); and the first positioning blocks (14) and the second positioning block (16) are both fixedly connected to the tops of the rod bonding fixtures (11). The device has a small size, can be conveyed on a conveying table on a production line, implements assembly on the conveying table on the production line at the same time, achieves placement, guide and positioning of the wafer carrier (3), the plastic plate (4) and the silicon rod during assembly, and implements pressing on the wafer carrier (3), the plastic plate (4) and the silicon rod by means of counterweights, so that the bonding among the wafer carrier (3), the plastic plate (4) and the silicon rod is completed during conveying on the conveying table, thereby improving the working efficiency.

Description

A three-in-one adhesive positioning device for photovoltaic silicon rods Technical Field

[0001] This invention relates to the field of photovoltaic silicon rod technology, specifically to a three-in-one bonding and positioning device for photovoltaic silicon rods. Background Technology

[0002] Photovoltaic silicon rods are an important component of solar cells and are mainly used in the manufacture of photovoltaic cells. The three-in-one bonding of photovoltaic silicon rods usually refers to the process of bonding the silicon rod body, plastic plate and crystal holder together.

[0003] Patent CN215396150U discloses a silicon rod body bonding and positioning device, comprising: a reference end assembly that contacts either end of the silicon rod body and the material plate on the same side; a reference side assembly that contacts either side of the same side; a positioning end assembly that contacts the other end of the silicon rod body and the material plate on the same side; and a positioning side assembly that contacts the other side of the same side. The positioning end assembly can push the end of the silicon rod body along its length direction towards the reference end assembly when the bonded silicon rod body and the material plate are placed on a placement table, thereby achieving positioning of the silicon rod body and the material plate along their length direction. The positioning side assembly can move along the width direction of the silicon rod body towards the reference side assembly after the silicon rod body is positioned by the reference side assembly, thereby pushing the silicon rod body and achieving centering positioning of the silicon rod body and the material plate in the width direction. This positioning device first ensures positioning of one end face and one side surface, and then adjusts the mating top plates of the other end face and the other side surface to make the silicon rod body and the material plate coaxially symmetrically arranged. It has a simple structure and accurate positioning; it is highly practical and widely applicable.

[0004] The device requires moving the silicon rod, plastic plate, and crystal holder onto the device for bonding before removing them, resulting in a separate bonding process on the production line, which affects the production efficiency of the photovoltaic silicon rod production line. Therefore, a photovoltaic silicon rod three-in-one bonding and positioning device is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a photovoltaic silicon rod three-in-one bonding and positioning device to address the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a photovoltaic silicon rod three-in-one bonding and positioning device, including a support component, a positioning component, a limiting mechanism, a limiting mechanism, a marking mechanism, a crystal support, a plastic plate, and a silicon rod body. The support component includes a rod bonding fixture, a fixing seat, a positioning post, a positioning block one, a fixture base plate, and a positioning block two. The fixing seat is installed on the top of the rod bonding fixture, the positioning post is installed on the top of the fixing seat, and the positioning block one and positioning block two are both fixedly connected to the top of the rod bonding fixture. The base plate is placed on top of the adhesive rod fixture; the positioning assembly includes a counterweight positioning fixture, a bushing fixing plate, a support rod, a limiting plate, a linear bearing, a counterweight plate, a counterweight weight, a side guide plate, a guide groove, a guide rod, a guide bearing, a positioning plate, a clamping plate, a positioning adhesive strip, a slide rail, a slider, and a pressing adhesive strip. The bushing fixing plate is installed at the bottom of the counterweight positioning fixture, the support rod is fixedly connected to the top of the counterweight positioning fixture, the limiting plate is installed at the top of the support rod, and the linear bearing is slidably connected to the circumferential surface of the support rod. The counterweight plate is installed at the bottom of the linear bearing, and the counterweight is placed on top of the counterweight plate. Two side guide plates are provided, and the two side guide plates are fixedly connected to both sides of the counterweight plate. A guide groove is formed on the surface of the side guide plate. A guide rod is slidably connected to the inner wall of the counterweight positioning fixture. A guide bearing is installed on the side of the guide rod near the side guide plate. A positioning plate is installed at the bottom end of the guide rod. A clamping plate is installed on the side of the positioning plate near the silicon rod body. A positioning rubber strip is located on the side of the clamping plate away from the positioning plate. A slide rail is installed at the bottom of the counterweight positioning fixture. A slider is slidably connected to the lower surface of the slide rail. A pressing rubber strip is installed at the bottom of the counterweight positioning fixture. The crystal holder is placed on top of the fixture base plate. A plastic plate is placed on top of the crystal holder. The silicon rod body is placed on top of the plastic plate. The right side of the second positioning block is in contact with the left side of the crystal holder. The surface of the first positioning block is in contact with the inner wall of the bottom of the crystal holder. The inner wall of the fixture base plate is in contact with the surfaces of one second positioning block and two first positioning blocks, respectively.The inner wall of the bushing fixing plate is in contact with the circumferential surface of the positioning column. The positioning plate is installed at the bottom of the slider. The circumferential surface of the guide bearing is in contact with the inner wall of the guide groove. The positioning adhesive strip is in contact with the silicon rod body. The bottom of the pressing adhesive strip is in contact with the top of the silicon rod body. On the photovoltaic silicon rod three-in-one bonding production line, the robot first places the bonding tooling on the conveyor table. Then, the robot places the crystal tray on the tooling base plate on top of the bonding tooling and places the crystal tray along the positioning block two. Under the action of the two positioning blocks one, the crystal tray is positioned so that it can be accurately placed on the bonding tooling. Then, the bonding tooling moves the crystal tray on the conveyor table to the next station. The robot at the next station will place the plastic plate on top of the crystal tray through the positioning on top of the crystal tray. During this period, adhesive will be applied between the top of the crystal tray and the plastic plate. After the plastic plate is placed, the robot at the next station will place the silicon rod body on the plastic plate. At the last station, the robot will place the counterweight positioning tool. The positioning fixture is placed on top of the silicon rod body via a positioning post. The counterweight positioning fixture, by its own weight, moves the pressing adhesive strip downwards, pressing the silicon rod body down and ensuring a tight fit between the silicon rod body, the plastic plate, and the crystal holder, improving the bonding effect and precision. Simultaneously, the robotic arm places a counterweight on top of the counterweight plate above the positioning fixture. This counterweight, through gravity, moves the counterweight plate downwards. The counterweight plate slides down the circumference of the support rod via a linear bearing, simultaneously causing the side guide plate to move downwards. The guide plate, via guide grooves, drives two guide bearings to converge. These two guide bearings, in turn, drive two guide rods to converge. The guide rods then drive two positioning plates to converge. These positioning plates, in turn, drive two clamping plates to converge. Finally, the clamping plates drive two positioning rubber strips to converge and contact the front and rear sides of the silicon rod body. This allows the two positioning rubber strips to position and clamp the silicon rod body. A counterweight presses down on the rod, ensuring continuous positioning and clamping, further improving the bonding accuracy and quality between the silicon rod body, the plastic plate, and the crystal holder.

[0007] Preferably, the limiting mechanism includes a spiral rod, a sleeve, and a limiting plate. The spiral rod is installed on the top of the counterweight positioning fixture, the sleeve is rotatably connected to the top of the counterweight plate, and the limiting plate is fixedly connected to the top of the sleeve. The inner wall of the sleeve contacts the circumferential surface of the spiral rod. The surface of the spiral rod is provided with a non-self-locking spiral groove. The inner wall of the sleeve is provided with a locking block, which is located in the non-self-locking spiral groove. The circumferential surface of the spiral rod is in contact with the inner wall of the counterweight plate. When the counterweight... Placed on the counterweight plate, the counterweight plate moves the sleeve downwards. The sleeve slides down the circumference of the spiral rod, while the locking block on the inner wall of the sleeve moves in the non-self-locking spiral groove on the surface of the spiral rod, causing the locking block to rotate along the spiral groove. The locking block drives the sleeve to rotate, and the sleeve drives the limiting plate to rotate. The limiting plate rotates to the top of the counterweight and limits it, preventing the counterweight from falling off the counterweight plate when the device is transported on the conveyor platform, which would affect the subsequent pressing and bonding effect between the silicon rod body, plastic plate and crystal holder.

[0008] Preferably, the limiting mechanism includes a pressure rod, a transmission rod, a push plate, and an elastic telescopic rod. The pressure rod is slidably connected to the inner wall of the positioning plate via an elastic element. The transmission rod is fixedly connected to the surface of the pressure rod. The push plate is slidably connected to the bottom of the positioning plate. The elastic telescopic rod is fixedly connected to the side of the push plate near the clamping plate. The inner wall of the push plate has an inclined groove. The circumferential surface of the transmission rod contacts the inner wall of the inclined groove. The circumferential surface of the elastic telescopic rod contacts the inner wall of the clamping plate. The end of the elastic telescopic rod away from the push plate is fixedly connected to the surface of the positioning rubber strip. When the size of the silicon rod body is small, the counterweight plate will be pressed down a greater distance by the counterweight weight. The counterweight plate will simultaneously drive the side guide plate to move down. After moving down a certain distance, it will contact the top of the pressure rod and push the pressure rod down. The pressure rod drives the transmission rod to move down. The transmission rod drives the push plate to move through the guide of the inclined groove on the inner wall of the push plate. The push plate drives the two positioning rubber strips to further converge through the elastic telescopic rod, thereby positioning and clamping the small silicon rod body.

[0009] Preferably, the marking mechanism includes a slide rod, a roller, a chuck, an elastic telescopic strip, a transmission strip, and a stamp. The slide rod is slidably connected to the inner wall of the side guide plate, the roller is rotatably connected to the inner wall of one end of the slide rod, the elastic telescopic strip is fixedly connected to the other end of the slide rod, the chuck is fixedly connected to the front and rear sides of the slide rod, the transmission strip is fixedly connected to the bottom end of the elastic telescopic strip, and the stamp is fixedly connected to the surface of the transmission strip. The surface of the elastic telescopic strip is in contact with the inner wall of the counterweight positioning fixture. A spring is provided between the chuck and the side guide plate, and the circumferential surface of the roller is in contact with the surface of the limiting plate. When the limiting plate rotates, the spring drives the chuck to move towards the limiting plate. The chuck then moves the slide rod, which, via rollers, presses against the surface of the limiting plate. When the limiting plate rotates and limits the counterweight, the rollers move along the trajectory on the surface of the limiting plate, causing the rollers and slide rod to move closer to the limiting plate. The slide rod then moves the elastic telescopic strip, which in turn moves the transmission strip, which in turn moves the stamp. After the stamp moves, it contacts both sides of the silicon rod body and marks both sides of the silicon rod body. This allows workers to remove smaller silicon rod bodies for individual testing to determine if they meet the usage requirements.

[0010] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0011] 1. This photovoltaic silicon rod three-in-one bonding and positioning device is compact in size and can be transported on the conveyor table of the production line. It is assembled on the conveyor table, and during assembly, it places the crystal tray, plastic plate, and silicon rod, guiding and positioning them simultaneously. A counterweight is used to press them together, ensuring the bonding of the crystal tray, plastic plate, and silicon rod is completed during the conveyor transport process, improving work efficiency. Multiple devices can be installed to simultaneously bond multiple sets of crystal trays, plastic plates, and silicon rods. When bonding new crystal trays, plastic plates, and silicon rods, the crystal trays, plastic plates, and silicon rods in the first device have already been bonded and disassembled, allowing the device to be transferred back to the production line via the conveyor table for bonding new crystal trays, plastic plates, and silicon rods, achieving cyclical use and further improving work efficiency.

[0012] 2. This photovoltaic silicon rod three-in-one bonding and positioning device works in coordination with the screw rod, sleeve, and limiter. When the counterweight is placed on the counterweight plate, the counterweight plate moves the sleeve downward. The sleeve slides down the circumference of the screw rod, while the locking block on the inner wall of the sleeve moves in the non-self-locking spiral groove on the surface of the screw rod, causing the locking block to rotate along the spiral groove. The locking block drives the sleeve to rotate, and the sleeve drives the limiter to rotate. The limiter rotates to the top of the counterweight and limits it, preventing the counterweight from falling off the counterweight plate when the device is transported on the conveyor platform, which would affect the subsequent pressing and bonding effect between the silicon rod body, plastic plate, and crystal holder.

[0013] 3. This photovoltaic silicon rod three-in-one bonding and positioning device, through the coordinated operation of the pressure rod, transmission rod, push plate, and elastic telescopic rod, when the size of the silicon rod body is small, the counterweight plate will be pressed down a greater distance by the counterweight weight. The counterweight plate will simultaneously drive the side guide plate to move down. After moving down a certain distance, it will contact the top of the pressure rod and push the pressure rod down. The pressure rod drives the transmission rod to move down. The transmission rod drives the push plate to move through the guide of the inclined groove on the inner wall of the push plate. The push plate drives the two positioning rubber strips to further converge through the elastic telescopic rod, thereby positioning and clamping the small silicon rod body.

[0014] 4. This photovoltaic silicon rod three-in-one bonding and positioning device works in coordination with a slide rod, rollers, chuck, elastic telescopic strip, transmission strip, and stamp. When the limiting plate rotates, the spring drives the chuck to move towards the limiting plate, and the chuck drives the slide rod to move. The slide rod is pressed tightly against the surface of the limiting plate through the rollers. When the limiting plate rotates and limits the counterweight, the rollers move according to the trajectory on the surface of the limiting plate, causing the rollers and slide rods to move closer to the limiting plate. The slide rod drives the elastic telescopic strip to move, the elastic telescopic strip drives the transmission strip to move, and the transmission strip drives the stamp to move. After the stamp moves, it contacts both sides of the silicon rod body and stamps the two sides of the silicon rod body, so that workers can remove the smaller silicon rod body for individual testing to see if it meets the usage requirements. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the adhesive rod tooling structure of the present invention;

[0017] Figure 3 is a schematic diagram of the counterweight positioning fixture structure of the present invention;

[0018] Figure 4 is a schematic diagram of the slide rail structure of the present invention;

[0019] Figure 5 is a half-sectional view of the side guide plate structure of the present invention;

[0020] Figure 6 is an enlarged view of the structure at point A in Figure 5 of this invention;

[0021] Figure 7 is a half-sectional view of the counterweight positioning fixture structure of the present invention;

[0022] Figure 8 is an enlarged view of the structure at point B in Figure 7 of this invention.

[0023] In the diagram: 1. Support assembly; 11. Adhesive rod fixture; 12. Fixed seat; 13. Positioning column; 14. Positioning block one; 15. Fixture base plate; 16. Positioning block two; 2. Positioning assembly; 21. Counterweight positioning fixture; 22. Bushing fixing plate; 23. Support rod; 24. Limiting plate; 25. Linear bearing; 26. Counterweight plate; 27. Counterweight weight; 28. Side guide plate; 29. ​​Guide groove; 210. Guide rod; 211. Guide bearing; 212. Positioning plate; 213. 1. Clamping plate; 214. Positioning strip; 215. Slide rail; 216. Slider; 217. Pressing strip; 3. Crystal holder; 4. Plastic plate; 5. Silicon rod body; 6. Limiting mechanism; 61. Spiral rod; 62. Sleeve; 63. Limiting plate; 7. Marking mechanism; 71. Slide rod; 72. Roller; 73. Chuck; 74. Elastic telescopic bar; 75. Transmission bar; 76. Stamp; 8. Limiting mechanism; 81. Pressure rod; 82. Transmission rod; 83. Push plate; 84. Elastic telescopic bar. Detailed Implementation

[0024] 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.

[0025] Please refer to Figures 1-8. One embodiment of the present invention is: a photovoltaic silicon rod three-in-one bonding and positioning device, including a support component 1, a positioning component 2, a limiting mechanism 6, a limiting mechanism 8, a marking mechanism 7, a crystal support 3, a plastic plate 4, and a silicon rod body 5. The support component 1 includes a rod bonding fixture 11, a fixing seat 12, a positioning post 13, a positioning block one 14, a fixture base plate 15, and a positioning block two 16. The fixing seat 12 is installed on the top of the rod bonding fixture 11, the positioning post 13 is installed on the top of the fixing seat 12, the positioning block one 14 and the positioning block two 16 are both fixedly connected to the top of the rod bonding fixture 11, and the fixture base plate 15 is placed on the top of the rod bonding fixture 11.The positioning assembly 2 includes a counterweight positioning fixture 21, a bushing fixing plate 22, a support rod 23, a limiting plate 24, a linear bearing 25, a counterweight plate 26, a counterweight 27, a side guide plate 28, a guide groove 29, a guide rod 210, a guide bearing 211, a positioning plate 212, a clamping plate 213, a positioning rubber strip 214, a slide rail 215, a slider 216, and a pressing rubber strip 217. The bushing fixing plate 22 is installed at the bottom of the counterweight positioning fixture 21, the support rod 23 is fixedly connected to the top of the counterweight positioning fixture 21, the limiting plate 24 is installed at the top of the support rod 23, the linear bearing 25 is slidably connected to the circumferential surface of the support rod 23, the counterweight plate 26 is installed at the bottom of the linear bearing 25, and the counterweight 27 is placed on top of the counterweight plate 26. There are two side guide plates 28, which are fixedly connected to both sides of the counterweight plate 26. Guide grooves 29 are formed on the surface of the side guide plates 28. A guide rod 210 is slidably connected to the inner wall of the counterweight positioning fixture 21. A guide bearing 211 is installed on the side of the guide rod 210 near the side guide plate 28. A positioning plate 212 is installed at the bottom end of the guide rod 210. A clamping plate 213 is installed on the side of the positioning plate 212 near the silicon rod body 5. A positioning adhesive strip 214 is located on the side of the clamping plate 213 away from the positioning plate 212. A slide rail 215 is installed at the bottom of the counterweight positioning fixture 21. A slider 216 is slidably connected to the lower surface of the slide rail 215. A pressing adhesive strip 217 is installed at the bottom of the counterweight positioning fixture 21. (In photovoltaic...) On the silicon rod three-in-one bonding production line, a robotic arm first places the bonding fixture 11 onto the conveyor table. Then, the robotic arm places the crystal tray 3 onto the fixture base plate 15 on top of the bonding fixture 11, and positions the crystal tray 3 along the positioning block 16. Under the action of two positioning blocks 14, the crystal tray 3 is positioned accurately onto the bonding fixture 11. The bonding fixture 11 then moves the crystal tray 3 on the conveyor table to the next station. At the next station, the robotic arm places a plastic plate 4 on top of the crystal tray 3 using the positioning block on top of the crystal tray 3. During this process, adhesive is applied between the top of the crystal tray 3 and the plastic plate 4. After the plastic plate 4 is placed, the robotic arm at the next station places the silicon rod body 5 onto the plastic plate 4. At the last station, the robot will place the counterweight positioning fixture 21 on top of the silicon rod body 5 through the positioning post 13. The counterweight positioning fixture 21 will move the pressing adhesive strip 217 downward by its own weight. The pressing adhesive strip 217 will press down on the silicon rod body 5, so that the silicon rod body 5, the plastic plate 4 and the crystal holder 3 are tightly attached, improving the bonding effect and accuracy. The crystal holder 3 is placed on top of the fixture base plate 15, the plastic plate 4 is placed on top of the crystal holder 3, the silicon rod body 5 is placed on top of the plastic plate 4, the right side of the positioning block 2 16 is in contact with the left side of the crystal holder 3, the surface of the positioning block 1 14 is in contact with the inner wall of the bottom of the crystal holder 3, and the inner wall of the fixture base plate 15 is in contact with the surfaces of one positioning block 2 16 and two positioning blocks 14 respectively.The inner wall of the bushing fixing plate 22 is in contact with the circumferential surface of the positioning column 13. The positioning plate 212 is installed at the bottom of the slider 216. The circumferential surface of the guide bearing 211 is in contact with the inner wall of the guide groove 29. The positioning rubber strip 214 is in contact with the silicon rod body 5. The bottom of the pressing rubber strip 217 is in contact with the top of the silicon rod body 5. The robot arm also places a counterweight 27 on the top of the counterweight plate 26 above the counterweight positioning fixture 21. The counterweight 27 presses the counterweight plate 26 down by gravity. The counterweight plate 26 slides down the circumferential surface of the support rod 23 through the linear bearing 25. At the same time, the counterweight plate 26 drives the side guide plate 28 down. The side guide plate 28 drives two guide bearings 211 to converge via the guide groove 29. The two guide bearings 211 then drive two guide rods 210 to converge, which in turn drive two positioning plates 212 to converge. The positioning plates 212 then drive two clamping plates 213 to converge, and the clamping plates 213 drive two positioning strips 214 to converge and contact the front and rear sides of the silicon rod body 5. This allows the two positioning strips 214 to position and clamp the silicon rod body 5. The counterweight 27 presses down on this position, ensuring the silicon rod body 5 remains continuously positioned and clamped, further improving the bonding accuracy and quality between the silicon rod body 5, the plastic plate 4, and the crystal holder 3.

[0026] Working principle: On the photovoltaic silicon rod three-in-one bonding production line, a robotic arm first places the bonding fixture 11 on the conveyor table. Then, the robotic arm places the crystal tray 3 on the fixture base plate 15 on top of the bonding fixture 11 and positions the crystal tray 3 along the positioning block 16. Under the action of the two positioning blocks 14, the crystal tray 3 is positioned accurately on the bonding fixture 11. Afterward, the bonding fixture 11 moves the crystal tray 3 on the conveyor table to the next station. The robotic arm at the next station will place the plastic plate 4... The silicon rod is positioned on top of the crystal tray 3 using the positioning mechanism on top of the crystal tray 3. During this process, adhesive is applied between the top of the crystal tray 3 and the plastic plate 4. After the plastic plate 4 is placed, the robot at the next station will place the silicon rod body 5 on the plastic plate 4. At the last station, the robot will place the counterweight positioning fixture 21 on top of the silicon rod body 5 via the positioning post 13. The counterweight positioning fixture 21 will then move the pressing adhesive strip 217 downwards due to its own weight. The pressing adhesive strip 217 will press down on the silicon rod body 5, causing the silicon rod body 5 to... The plastic plate 4 and the crystal support 3 are tightly bonded together, improving their bonding effect and precision. Simultaneously, the robotic arm places a counterweight 27 on top of the counterweight plate 26 above the counterweight positioning fixture 21. The counterweight 27 presses down on the counterweight plate 26 due to gravity. The counterweight plate 26 slides down the circumferential surface of the support rod 23 via the linear bearing 25. At the same time, the counterweight plate 26 drives the side guide plate 28 to move downwards. The side guide plate 28 drives the two guide bearings 211 to converge via the guide groove 29. The two guide bearings 211 then drive the two… The guide rods 210 converge, and the two guide rods 210 drive the two positioning plates 212 to converge. The two positioning plates 212 drive the two clamping plates 213 to converge. The two clamping plates 213 drive the two positioning adhesive strips 214 to converge and contact the front and rear sides of the silicon rod body 5, so that the two positioning adhesive strips 214 can position and clamp the silicon rod body 5. The counterweight 27 will press it and make the silicon rod body 5 continuously positioned and clamped, further improving the bonding accuracy and quality between the silicon rod body 5, the plastic plate 4 and the crystal holder 3.

[0027] Please refer to Figures 1-8. In another embodiment of the present invention, based on the above embodiments, the limiting mechanism 6 includes a spiral rod 61, a sleeve 62, and a limiting plate 63. The spiral rod 61 is installed on the top of the counterweight positioning fixture 21. The sleeve 62 is rotatably connected to the top of the counterweight plate 26. The limiting plate 63 is fixedly connected to the top of the sleeve 62. When the counterweight 27 is placed on the counterweight plate 26, the counterweight plate 26 drives the sleeve 62 to move downward. The sleeve 62 slides down the circumferential surface of the spiral rod 61, and the locking block on the inner wall of the sleeve 62 moves in the non-self-locking spiral groove on the surface of the spiral rod 61, so that the locking block moves along the spiral groove. The sleeve 62 rotates, and the locking block drives the sleeve 62 to rotate. The sleeve 62 drives the limiting plate 63 to rotate. The limiting plate 63 will rotate to the top of the counterweight 27 and limit it to prevent the counterweight 27 from falling off the counterweight plate 26 when the device is transported on the conveyor table, which would affect the subsequent pressing and bonding effect between the silicon rod body 5, the plastic plate 4 and the crystal holder 3. The inner wall of the sleeve 62 is in contact with the circumferential surface of the spiral rod 61. The surface of the spiral rod 61 is provided with a non-self-locking spiral groove. The inner wall of the sleeve 62 is provided with a locking block, and the locking block is located in the non-self-locking spiral groove. The circumferential surface of the spiral rod 61 is in contact with the inner wall of the counterweight plate 26.

[0028] The limiting mechanism 8 includes a pressure rod 81, a transmission rod 82, a push plate 83, and an elastic telescopic rod 84. The pressure rod 81 is slidably connected to the inner wall of the positioning plate 212 via an elastic element. The transmission rod 82 is fixedly connected to the surface of the pressure rod 81. The push plate 83 is slidably connected to the bottom of the positioning plate 212. The elastic telescopic rod 84 is fixedly connected to the side of the push plate 83 near the clamping plate 213. When the size of the silicon rod body 5 is relatively small, the counterweight plate 26 will be pressed down a greater distance by the counterweight 27. The counterweight plate 26 will simultaneously drive the side guide plate 28 to move down, and after moving down a certain distance, it will contact the top of the pressure rod 81. The pressure rod 81 is pushed down, and the pressure rod 81 drives the transmission rod 82 down. The transmission rod 82 drives the push plate 83 to move through the guide of the inclined groove on the inner wall of the push plate 83. The push plate 83 drives the two positioning rubber strips 214 to further converge through the elastic telescopic rod 84, so as to position and clamp the small silicon rod body 5. The inner wall of the push plate 83 is provided with an inclined groove. The circumferential surface of the transmission rod 82 is in contact with the inner wall of the inclined groove, and the circumferential surface of the elastic telescopic rod 84 is in contact with the inner wall of the clamping plate 213. The end of the elastic telescopic rod 84 away from the push plate 83 is fixedly connected to the surface of the positioning rubber strip 214.

[0029] The marking mechanism 7 includes a slide rod 71, a roller 72, a chuck 73, an elastic telescopic bar 74, a transmission bar 75, and a stamp 76. The slide rod 71 is slidably connected to the inner wall of the side guide plate 28. The roller 72 is rotatably connected to the inner wall of one end of the slide rod 71. The elastic telescopic bar 74 is fixedly connected to the other end of the slide rod 71. The chuck 73 is fixedly connected to the front and rear sides of the slide rod 71. The transmission bar 75 is fixedly connected to the bottom end of the elastic telescopic bar 74. The stamp 76 is fixedly connected to the surface of the transmission bar 75. When the limiting plate 63 rotates, the spring will drive the chuck 73 to move towards the limiting plate 63. The chuck 73 drives the slide rod 71 to move. The slide rod 71 is tightly attached to the surface of the limiting plate 63 through the roller 72. When the limiting plate 63 rotates and moves the counterweight... When the code 27 is in position, the roller 72 moves according to the trajectory on the surface of the limiting plate 63, causing the roller 72 and the slide bar 71 to move closer to the limiting plate 63. The slide bar 71 drives the elastic telescopic bar 74 to move, the elastic telescopic bar 74 drives the transmission bar 75 to move, and the transmission bar 75 drives the stamp 76 to move. After the stamp 76 moves, it contacts both sides of the silicon rod body 5 and stamps the two sides of the silicon rod body 5, so that the workers can remove the smaller silicon rod body 5 for individual testing to see if it meets the usage requirements. The surface of the elastic telescopic bar 74 contacts the inner wall of the counterweight positioning fixture 21. A spring is provided between the chuck 73 and the side guide plate 28. The circumferential surface of the roller 72 contacts the surface of the limiting plate 63.

[0030] Working principle: When the counterweight 27 is placed on the counterweight plate 26, the counterweight plate 26 drives the sleeve 62 to move down. The sleeve 62 slides down the circumferential surface of the spiral rod 61, and the locking block on the inner wall of the sleeve 62 moves in the non-self-locking spiral groove on the surface of the spiral rod 61, so that the locking block rotates along the spiral groove. The locking block drives the sleeve 62 to rotate, and the sleeve 62 drives the limiting plate 63 to rotate. The limiting plate 63 will rotate to the top of the counterweight 27 and limit it, preventing the counterweight 27 from falling off the counterweight plate 26 when the device is transported on the conveyor table, thereby affecting the subsequent pressing and bonding effect between the silicon rod body 5, the plastic plate 4 and the crystal holder 3.

[0031] When the size of the silicon rod body 5 is relatively small, the counterweight plate 26 will be pressed down a greater distance by the counterweight 27. The counterweight plate 26 will also drive the side guide plate 28 to move down. After moving down a certain distance, it will contact the top of the pressure rod 81 and push the pressure rod 81 to move down. The pressure rod 81 drives the transmission rod 82 to move down. The transmission rod 82 drives the push plate 83 to move through the guide of the inclined groove on the inner wall of the push plate 83. The push plate 83 drives the two positioning rubber strips 214 to further converge through the elastic telescopic rod 84, so as to position and clamp the small silicon rod body 5.

[0032] When the limiting plate 63 rotates, the spring will drive the chuck 73 to move towards the limiting plate 63. The chuck 73 will drive the slide rod 71 to move. The slide rod 71 will be in close contact with the surface of the limiting plate 63 through the roller 72. When the limiting plate 63 rotates and limits the counterweight 27, the roller 72 will move according to the trajectory on the surface of the limiting plate 63, so that the roller 72 and the slide rod 71 will move towards the limiting plate 63. The slide rod 71 will drive the elastic telescopic strip 74 to move. The elastic telescopic strip 74 will drive the transmission strip 75 to move. The transmission strip 75 will drive the stamp 76 to move. After the stamp 76 moves, it will contact both sides of the silicon rod body 5 and stamp the two sides of the silicon rod body 5. This will allow the workers to remove the smaller silicon rod body 5 for individual testing to see if it meets the usage requirements.

[0033] After the silicon rod is bonded and positioned, a robotic arm grips the counterweight plate 26, lifting the counterweight positioning fixture 21. During this upward movement, the counterweight plate 26 remains pressed against the top of the silicon rod body 5 due to its own weight. When the robotic arm lifts the counterweight plate 26, it moves upward and creates relative displacement with the stationary counterweight positioning fixture 21. Therefore, the upward movement and resetting of the counterweight plate 26 causes the side guide plate 28 to reset. The resetting of the side guide plate 28 then causes the two positioning silicon rod bodies 5 to... The positioning strips 214 move away from each other and reset, so that the positioning strips 214 no longer clamp the positioning silicon rod body 5. When the robot continues to move upward, the two positioning strips 214 have moved away from each other to the maximum distance. Therefore, the side guide plate 28 will not be able to move upward in the counterweight positioning fixture 21. Thus, the robot can lift the entire counterweight positioning fixture 21 through the counterweight plate 26 and the side guide plate 28, and automatically reset it during the lifting process for easy reuse. The counterweight 27 will remain on top of the counterweight plate 26 without needing to be removed.

[0034] This invention provides a three-in-one bonding and positioning device for photovoltaic silicon rods. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A photovoltaic silicon rod three-in-one bonding and positioning device, comprising a support component (1), a positioning component (2), a limiting mechanism (6), a limiting mechanism (8), a marking mechanism (7), a crystal holder (3), a plastic plate (4), and a silicon rod body (5), characterized in that: The support assembly (1) includes a sticking rod fixture (11), a fixed seat (12), a positioning column (13), a positioning block one (14), a fixture base plate (15), and a positioning block two (16). The fixed seat (12) is installed on the top of the sticking rod fixture (11), the positioning column (13) is installed on the top of the fixed seat (12), the positioning block one (14) and the positioning block two (16) are both fixedly connected to the top of the sticking rod fixture (11), and the fixture base plate (15) is placed on the top of the sticking rod fixture (11). The positioning assembly (2) includes a counterweight positioning fixture (21), a bushing fixing plate (22), a support rod (23), a limiting plate (24), a linear bearing (25), a counterweight plate (26), a counterweight weight (27), a side guide plate (28), a guide groove (29), a guide rod (210), a guide bearing (211), a positioning plate (212), a clamping plate (213), a positioning rubber strip (214), a slide rail (215), a slider (216), and a pressing mechanism. The rubber strip (217), the bushing fixing plate (22) is installed at the bottom of the counterweight positioning fixture (21), the support rod (23) is fixedly connected to the top of the counterweight positioning fixture (21), the limiting plate (24) is installed at the top of the support rod (23), the linear bearing (25) is slidably connected to the circumferential surface of the support rod (23), the counterweight plate (26) is installed at the bottom of the linear bearing (25), the counterweight (27) is placed at the top of the counterweight plate (26), the number of side guide plates (28) is set to two, and the two side guide plates (28) are fixedly connected to both sides of the counterweight plate (26), the guide groove (29) is opened on the surface of the side guide plate (28), the guide rod (210) is slidably connected to the inner wall of the counterweight positioning fixture (21), the guide bearing (211) is installed on the side of the guide rod (210) near the side guide plate (28), and the positioning plate (212) is installed on the guide rod. At the bottom of (210), the clamping plate (213) is installed on the side of the positioning plate (212) close to the silicon rod body (5), the positioning strip (214) is set on the side of the clamping plate (213) away from the positioning plate (212), the slide rail (215) is installed at the bottom of the counterweight positioning fixture (21), the slider (216) is slidably connected to the lower surface of the slide rail (215), and the pressing strip (217) is installed at the bottom of the counterweight positioning fixture (21); The crystal tray (3) is placed on top of the tooling base plate (15), the plastic plate (4) is placed on top of the crystal tray (3), the silicon rod body (5) is placed on top of the plastic plate (4), the right side of the positioning block two (16) is in contact with the left side of the crystal tray (3), the surface of the positioning block one (14) is in contact with the inner wall of the bottom of the crystal tray (3), and the inner wall of the tooling base plate (15) is in contact with the surfaces of one positioning block two (16) and two positioning blocks one (14) respectively. The inner wall of the bushing fixing plate (22) is in contact with the circumferential surface of the positioning column (13), the positioning plate (212) is installed at the bottom of the slider (216), the circumferential surface of the guide bearing (211) is in contact with the inner wall of the guide groove (29), the positioning rubber strip (214) is in contact with the silicon rod body (5), and the bottom of the pressing rubber strip (217) is in contact with the top of the silicon rod body (5). The limiting mechanism (6) includes a spiral rod (61), a sleeve (62) and a limiting plate (63). The spiral rod (61) is installed on the top of the counterweight positioning fixture (21). The sleeve (62) is rotatably connected to the top of the counterweight plate (26). The limiting plate (63) is fixedly connected to the top of the sleeve (62).

2. The photovoltaic silicon rod three-in-one bonding and positioning device according to claim 1, characterized in that: The inner wall of the sleeve (62) is in contact with the circumferential surface of the spiral rod (61). The surface of the spiral rod (61) is provided with a non-self-locking spiral groove. The inner wall of the sleeve (62) is provided with a locking block, and the locking block is located in the non-self-locking spiral groove. The circumferential surface of the spiral rod (61) is in contact with the inner wall of the counterweight plate (26).

3. The photovoltaic silicon rod three-in-one bonding and positioning device according to claim 2, characterized in that: The limiting mechanism (8) includes a pressure rod (81), a transmission rod (82), a push plate (83), and an elastic telescopic rod (84). The pressure rod (81) is slidably connected to the inner wall of the positioning plate (212) through an elastic element. The transmission rod (82) is fixedly connected to the surface of the pressure rod (81). The push plate (83) is slidably connected to the bottom of the positioning plate (212). The elastic telescopic rod (84) is fixedly connected to the side of the push plate (83) near the clamping plate (213).

4. The photovoltaic silicon rod three-in-one bonding and positioning device according to claim 3, characterized in that: The inner wall of the push plate (83) is provided with an inclined groove, the circumferential surface of the transmission rod (82) is in contact with the inner wall of the inclined groove, the circumferential surface of the elastic telescopic rod (84) is in contact with the inner wall of the clamping plate (213), and the end of the elastic telescopic rod (84) away from the push plate (83) is fixedly connected to the surface of the positioning rubber strip (214).

5. The photovoltaic silicon rod three-in-one bonding and positioning device according to claim 4, characterized in that: The marking mechanism (7) includes a slide rod (71), a roller (72), a chuck (73), an elastic telescopic strip (74), a transmission strip (75), and a stamp (76). The slide rod (71) is slidably connected to the inner wall of the side guide plate (28). The roller (72) is rotatably connected to the inner wall of one end of the slide rod (71). The elastic telescopic strip (74) is fixedly connected to the other end of the slide rod (71). The chuck (73) is fixedly connected to the front and rear sides of the slide rod (71). The transmission strip (75) is fixedly connected to the bottom end of the elastic telescopic strip (74). The stamp (76) is fixedly connected to the surface of the transmission strip (75).

6. The photovoltaic silicon rod three-in-one bonding and positioning device according to claim 5, characterized in that: The surface of the elastic telescopic strip (74) is in contact with the inner wall of the counterweight positioning fixture (21), a spring is provided between the chuck (73) and the side guide plate (28), and the circumferential surface of the roller (72) is in contact with the surface of the limiting plate (63).

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