A welding wire cutting and placing mechanism of a BC battery string welding machine

Abstract

The utility model discloses a welding wire cutting and placing mechanism of BC battery string welding machine, including two groups of welding wire outlet frame, welding wire transverse shift module, two groups of welding wire cutting assembly, welding wire two -way clamping subassembly and welding wire positioning support, and welding wire positioning support is between two groups of welding wire outlet frame, and two groups of welding wire cutting assembly are located respectively above two ends of welding wire positioning support, and welding wire two -way clamping subassembly is installed on the drive end of welding wire transverse shift module, and welding wire two -way clamping subassembly is back and forth between two groups of welding wire cutting assembly, and the welding wire on welding wire outlet frame is stretched out and placed on welding wire positioning support. The welding wire cutting and placing mechanism of BC battery string welding machine pulls out the welding wire on the welding wire outlet frame of both ends to the corresponding position on the welding wire positioning support and is cut off, and left and right respectively undertake odd number column welding wire and double number column welding wire's pull out and cutting, ensure the position accurate of welding wire, share a group of welding wire two -way clamping subassembly, reduce the cost of mechanism, and movement is more accurate.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon wafer string bonding, and in particular to a wire cutting and placement mechanism for a BC battery string bonding machine. Background Technology

[0002] Photovoltaic silicon wafers are the core and most valuable component of a solar power generation system. Their function is to convert solar energy into electrical energy, which is then stored in batteries or used directly as a power source. In BC cells (back-contact cells, which can be combined with various circuits), before string bonding, the welding wire must be cut and placed at the bottom layer, followed by a row of half-wafers held together by adhesive strips. The welding wire's precise placement is crucial as it affects the quality of the string bonding; therefore, the cut welding wire must be positioned and placed beforehand. Utility Model Content

[0003] One objective of this invention is to provide a wire cutting and placement mechanism for a BC battery string welding machine. The wire is pulled onto the wire positioning bracket by a bidirectional clamping assembly that moves back and forth, making it easier to grab the wire and place it at the string welding position.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A wire cutting and placement mechanism for a BC battery string welding machine includes two sets of wire feed frames, a wire traversing module, two sets of wire cutting components, a wire bidirectional clamping component, and a wire positioning bracket. The wire positioning bracket is located between the two sets of wire feed frames. The two sets of wire cutting components are respectively located above the two ends of the wire positioning bracket. The wire bidirectional clamping component is installed on the drive end of the wire traversing module. The wire bidirectional clamping component moves back and forth between the two sets of wire cutting components and pulls the wire from the wire feed frames out and places it on the wire positioning bracket.

[0006] As a preferred technical solution, the wire feeder is equipped with several sets of wire spools, and a tensioning frame is provided between the wire feeder and the wire positioning bracket, with tensioning wheels installed on the tensioning frame.

[0007] As a preferred technical solution, the welding wire traversing module is equipped with three sets of welding wire lifting seats, each equipped with a welding wire lifting motor. The welding wire lifting motor controls the rotation of the welding wire lifting screw through the transmission of a synchronous pulley and a synchronous belt. Welding wire lifting nuts are installed on the rear sides of the two sets of welding wire cutting assemblies and the set of welding wire bidirectional clamping assemblies. The welding wire lifting screw is connected to the welding wire lifting nut. The welding wire cutting assembly and the welding wire bidirectional clamping assembly both move up and down along the welding wire lifting slide rail in the vertical direction.

[0008] As a preferred technical solution, the welding wire cutting assembly includes a welding wire cutting support, a welding wire cutting motor, and a welding wire cutting upright plate. The welding wire cutting upright plate moves vertically on the welding wire cutting support. A welding wire cutting guide hole is provided at the upper end of the welding wire cutting upright plate. A welding wire cutting cam is installed at the drive end of the welding wire cutting motor. The welding wire cutting cam moves within the welding wire cutting guide hole. A welding wire cutter is installed at the lower end of the welding wire cutting upright plate.

[0009] As a preferred technical solution, welding wire cutting sliders are installed on both sides of the welding wire cutting upright plate, and welding wire cutting slide rails are fixed on both sides of the welding wire cutting support, with the welding wire cutting sliders sliding on the welding wire cutting slide rails.

[0010] As a preferred technical solution, the bidirectional welding wire clamping assembly includes a welding wire clamping support and a welding wire movable shaft. A row of lower welding wire clamps and a row of upper welding wire clamps are installed on each side of the welding wire clamping support. The lower welding wire clamps are fixed on the welding wire clamping support. The welding wire clamping support has a support cavity inside. A support air pipe connector is connected to the upper end of the support cavity. The welding wire movable shaft moves laterally within the support cavity. The upper welding wire clamps are hinged to the end of the welding wire movable shaft.

[0011] As a preferred technical solution, a welding wire positioning motor and a welding wire positioning synchronous wheel are installed at the end of the welding wire positioning bracket. The drive end of the welding wire positioning motor is connected to the welding wire positioning synchronous wheel. The welding wire positioning synchronous wheel is driven by a welding wire positioning synchronous belt. Several welding wire positioning seats are fixedly connected to the welding wire positioning synchronous belt. The welding wire positioning seats slide horizontally on the welding wire positioning bracket.

[0012] As a preferred technical solution, a welding wire positioning cylinder is installed at the upper end of the welding wire positioning seat, and a welding wire positioning plate is vertically connected to the driving end of the welding wire positioning cylinder. A welding wire positioning clamp is hinged on the welding wire positioning seat, and the lower end of the welding wire positioning clamp is engaged with the welding wire positioning plate.

[0013] The beneficial effects of this utility model are as follows: It provides a wire cutting and placement mechanism for a BC battery string welding machine. This wire cutting and placement mechanism pulls the wires from the wire feeders at both ends to the corresponding positions on the wire positioning bracket and cuts them. The left and right sides respectively handle the pulling out and cutting of single-row and double-row wires, ensuring accurate wire positioning. It uses a set of bidirectional wire clamping components, reducing mechanism costs and making the movement more precise. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of the wire cutting and placement mechanism of a BC battery string welding machine as described in the embodiment.

[0016] Figure 2 This is a first structural schematic diagram of the welding wire cutting assembly described in the embodiment;

[0017] Figure 3 This is a schematic diagram of the second structure of the welding wire cutting assembly described in the embodiment;

[0018] Figure 4 This is a schematic diagram of the bidirectional wire clamping assembly described in the embodiment;

[0019] Figure 5 This is a partial structural diagram of the welding wire positioning bracket described in the embodiment;

[0020] Figure 6 This is a schematic diagram of the upper structure of the welding wire positioning seat described in the embodiment.

[0021] Figures 1 to 6 middle:

[0022] 1. Welding wire feeder; 2. Welding wire traverse module; 3. Welding wire cutting assembly; 4. Welding wire bidirectional clamping assembly; 5. Welding wire positioning bracket; 6. Welding wire spool; 7. Tensioning frame; 8. Tensioning wheel; 9. Welding wire lifting seat; 10. Welding wire cutting support; 11. Welding wire cutting motor; 12. Welding wire cutting vertical plate; 13. Welding wire cutting cam; 14. Welding wire cutter; 15. Welding wire cutting slider; 16. Welding wire clamping support; 17. Welding wire movable shaft; 18. Welding wire lower clamp; 19. Welding wire upper clamp; 20. Support air pipe connector; 21. Welding wire positioning motor; 22. Welding wire positioning synchronous wheel; 23. Welding wire positioning synchronous belt; 24. Welding wire positioning seat; 25. Welding wire positioning cylinder; 26. Welding wire positioning plate; 27. Welding wire positioning clamp. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 6 As shown in this embodiment, a wire cutting and placement mechanism for a BC battery string welding machine includes two sets of wire feed frames 1, a wire transverse movement module 2, two sets of wire cutting components 3, a wire bidirectional clamping component 4, and a wire positioning bracket 5. The wire positioning bracket 5 is located between the two sets of wire feed frames 1. The two sets of wire cutting components 3 are respectively located above the two ends of the wire positioning bracket 5. The wire bidirectional clamping component 4 is installed on the drive end of the wire transverse movement module 2. The wire bidirectional clamping component 4 moves back and forth between the two sets of wire cutting components 3 and pulls the wire from the wire feed frame 1 out and places it on the wire positioning bracket 5.

[0025] Specifically, several sets of welding wire drums 6 are installed on the welding wire feeder 1. A tensioning frame 7 is set between the welding wire feeder 1 and the welding wire positioning bracket 5. A tensioning wheel 8 is installed on the tensioning frame 7. The wound welding wire is inside the welding wire drum 6. The welding wire drums 6 on the left and right sides are responsible for the output of the odd and even number of welding wires, respectively. The tensioning wheel 8 ensures that the pulled welding wire is in a straight line.

[0026] The welding wire transverse module 2 is equipped with three sets of welding wire lifting seats 9. Each welding wire lifting seat 9 is equipped with a welding wire lifting motor. The welding wire lifting motor controls the rotation of the welding wire lifting screw through the transmission of the synchronous pulley and the synchronous belt. Welding wire lifting nuts are installed on the rear side of the two sets of welding wire cutting components 3 and the one set of welding wire bidirectional clamping components 4. The welding wire lifting screw is connected to the welding wire lifting nut. The welding wire cutting components 3 and the welding wire bidirectional clamping components 4 move up and down along the welding wire lifting slide rail in the vertical direction.

[0027] Under the action of the wire lifting seat 9, when the left wire is stretched, the left wire cutting component 3, together with the wire bidirectional clamping component 4, lowers the wire onto the wire positioning bracket 5 to keep the wire horizontal. Similarly, when the right wire is stretched, after the wire is lowered, the wire cutting component 3 cuts the wire and stretches out a new wire on the other side. As the wire bidirectional clamping component 4 moves back and forth, it continuously stretches out the wires on both sides.

[0028] The welding wire cutting assembly 3 includes a welding wire cutting support 10, a welding wire cutting motor 11, and a welding wire cutting upright plate 12. The welding wire cutting upright plate 12 moves vertically on the welding wire cutting support 10. A welding wire cutting guide hole is provided at the upper end of the welding wire cutting upright plate 12. A welding wire cutting cam 13 is installed at the drive end of the welding wire cutting motor 11. The welding wire cutting cam 13 moves within the welding wire cutting guide hole. A welding wire cutter 14 is installed at the lower end of the welding wire cutting upright plate 12. Welding wire cutting sliders 15 are installed on both sides of the welding wire cutting upright plate 12. Welding wire cutting slide rails are fixed on both sides of the welding wire cutting support 10. The welding wire cutting sliders 15 slide on the welding wire cutting slide rails.

[0029] After the welding wire is pulled out, the welding wire cutting motor 11 controls the welding wire cutting cam 13 to rotate, so that the welding wire cutting upright plate 12 presses down along the welding wire cutting slide rail from top to bottom, and the welding wire cutter 14 cuts the welding wire on the welding wire cutting support 10.

[0030] The welding wire bidirectional clamping assembly 4 includes a welding wire clamping support 16 and a welding wire movable shaft 17. A row of welding wire lower clamps 18 and a row of welding wire upper clamps 19 are installed on each side of the welding wire clamping support 16. The welding wire lower clamps 18 are fixed on the welding wire clamping support 16. The welding wire clamping support 16 has a support cavity inside. The upper end of the support cavity is connected to a support air pipe connector 20. The welding wire movable shaft 17 moves laterally in the support cavity. The welding wire upper clamps 19 are hinged to the end of the welding wire movable shaft 17.

[0031] Under the action of the welding wire lateral movement module 2, the welding wire clamping support 16 moves back and forth above the welding wire positioning bracket 5, clamping the welding wire from the left and right welding wire outlet brackets 1. The support gas pipe connector 20 controls the internal gas of the support cavity, allowing the welding wire movable shaft 17 to enter and exit. Through the hinge, the upper welding wire clamp 19 and the lower welding wire clamp 18 can clamp the end of the welding wire.

[0032] A welding wire positioning motor 21 and a welding wire positioning synchronous wheel 22 are installed at the end of the welding wire positioning bracket 5. The drive end of the welding wire positioning motor 21 is connected to the welding wire positioning synchronous wheel 22. The welding wire positioning synchronous wheel 22 is connected to a welding wire positioning synchronous belt 23. Several welding wire positioning seats 24 are fixedly connected to the welding wire positioning synchronous belt 23. The welding wire positioning seats 24 slide horizontally on the welding wire positioning bracket 5. A welding wire positioning cylinder 25 is installed at the upper end of the welding wire positioning seat 24. The drive end of the welding wire positioning cylinder 25 is vertically connected to a welding wire positioning plate 26. A welding wire positioning clamp 27 is hinged on the welding wire positioning seat 24. The lower end of the welding wire positioning clamp 27 is engaged with the welding wire positioning plate 26.

[0033] The welding wire positioning motor 21 controls the position of each group of welding wire positioning seats 24 through the welding wire positioning synchronous wheel 22 and the welding wire positioning synchronous belt 23 to meet the requirements of positioning and clamping the welding wire. When the upper welding wire bidirectional clamping assembly 4 pulls out the welding wire and places it on the welding wire positioning seat 24, the welding wire positioning cylinder 25 pushes the welding wire positioning plate 26 upward. The lower end of the welding wire positioning clamp 27 is hinged under the action of force, and the upper end of the welding wire positioning clamp 27 closes to clamp and fix the welding wire.

[0034] All modules involved in this application are linear modules.

[0035] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A wire cutting and placement mechanism for a BC battery string welding machine, characterized in that, The device includes two sets of wire feeders, a wire traversing module, two sets of wire cutting assemblies, a wire bidirectional clamping assembly, and a wire positioning bracket. The wire positioning bracket is located between the two sets of wire feeders. The two sets of wire cutting assemblies are respectively located above the two ends of the wire positioning bracket. The wire bidirectional clamping assembly is installed on the drive end of the wire traversing module. The wire bidirectional clamping assembly moves back and forth between the two sets of wire cutting assemblies and pulls the wire from the wire feeder onto the wire positioning bracket.

2. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 1, characterized in that, The wire feeder is equipped with several sets of wire spools, and a tensioning frame is provided between the wire feeder and the wire positioning bracket. A tensioning wheel is installed on the tensioning frame.

3. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 1, characterized in that, The welding wire traverse module is equipped with three sets of welding wire lifting seats, each equipped with a welding wire lifting motor. The welding wire lifting motor controls the rotation of the welding wire lifting screw through the transmission of a synchronous pulley and a synchronous belt. Welding wire lifting nuts are installed on the rear sides of the two sets of welding wire cutting assemblies and the set of welding wire bidirectional clamping assemblies. The welding wire lifting screw is connected to the welding wire lifting nut. The welding wire cutting assembly and the welding wire bidirectional clamping assembly move up and down along the welding wire lifting slide rail in the vertical direction.

4. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 1, characterized in that, The welding wire cutting assembly includes a welding wire cutting support, a welding wire cutting motor, and a welding wire cutting upright plate. The welding wire cutting upright plate moves vertically on the welding wire cutting support. A welding wire cutting guide hole is provided at the upper end of the welding wire cutting upright plate. A welding wire cutting cam is installed at the drive end of the welding wire cutting motor. The welding wire cutting cam moves within the welding wire cutting guide hole. A welding wire cutter is installed at the lower end of the welding wire cutting upright plate.

5. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 4, characterized in that, The welding wire cutting vertical plate is equipped with welding wire cutting sliders on both sides, and welding wire cutting slide rails are fixed on both sides of the welding wire cutting support. The welding wire cutting slider slides on the welding wire cutting slide rails.

6. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 1, characterized in that, The bidirectional wire clamping assembly includes a wire clamping support and a wire movable shaft. A row of lower wire clamps and a row of upper wire clamps are installed on each side of the wire clamping support. The lower wire clamps are fixed on the wire clamping support. The wire clamping support has a support cavity inside. A support air pipe connector is connected to the upper end of the support cavity. The wire movable shaft moves laterally within the support cavity. The upper wire clamps are hinged to the end of the wire movable shaft.

7. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 1, characterized in that, The end of the welding wire positioning bracket is equipped with a welding wire positioning motor and a welding wire positioning synchronous wheel. The drive end of the welding wire positioning motor is connected to the welding wire positioning synchronous wheel. The welding wire positioning synchronous wheel is driven by a welding wire positioning synchronous belt. Several welding wire positioning seats are fixedly connected to the welding wire positioning synchronous belt. The welding wire positioning seats slide horizontally on the welding wire positioning bracket.

8. The wire cutting and placement mechanism of a BC battery string welding machine according to claim 7, characterized in that, A welding wire positioning cylinder is installed at the upper end of the welding wire positioning seat. The driving end of the welding wire positioning cylinder is vertically connected to a welding wire positioning plate. A welding wire positioning clamp is hinged on the welding wire positioning seat, and the lower end of the welding wire positioning clamp is engaged with the welding wire positioning plate.

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