Semi-automatic electric resistance welding equipment for solar cell

Abstract

The utility model discloses a solar battery semi-automatic resistance welding device which comprises a machine table, a welding platform transplanting mechanism, a battery piece welding machine and a visual inspection assembly are installed on the upper side of the machine table, the welding platform transplanting mechanism comprises a guide rail and a lead screw sliding table a, and a carrier plate a is installed on the guide rail. The lead screw sliding table a drives the carrying plate a to move linearly along the guide rails, the lead screw sliding table b is fixedly installed on the upper side of the carrying plate a, the lead screw sliding table b and the lead screw sliding table a are perpendicular in different planes, the table plate is installed on the lead screw sliding table b, the upper side of the table plate is used for clamping the welding jig, and the vacuum connector is installed on the table plate. The upper side of the welding jig is provided with a plurality of sets of material placing holes which are in profiling with battery pieces and diodes, and the material placing holes are used for adsorbing and fixing materials after air suction is started. Manual material taking and placing, CCD vision assisted positioning and automatic welding are adopted, the manual operation is only responsible for adding raw materials and recycling finished products, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery chip welding, in particular to a semi-automatic resistance welding device for solar cells. Background Technique

[0002] Silicon solar cells and gallium arsenide solar cells are several commonly used space solar cells at present. Among them, gallium arsenide solar cells, as the third-generation solar cells, have the advantages of high conversion efficiency, good temperature characteristics, strong radiation resistance and light weight. The existing space solar cell modules are composed of battery chips and diodes connected in series by interconnecting sheets through welding (as shown in Figure 1 ), which is different from the connection method of ordinary welding tapes. Therefore, the existing string welding machines cannot weld space solar cells, and manual welding has low efficiency and unstable quality. Content of the Utility Model

[0003] The purpose of the utility model is to provide a semi-automatic resistance welding device for solar cells to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a semi-automatic resistance welding device for solar cells, including a machine table. A welding platform transplanting mechanism, a battery chip welder and a vision detection component are respectively installed on the upper side of the machine table. The welding platform transplanting mechanism includes a guide rail and a lead screw slide table a. A carrier plate a is installed on the guide rail. The lead screw slide table a drives the carrier plate a to move linearly along the guide rail. A lead screw slide table b is fixedly installed on the upper side of the carrier plate a. The lead screw slide table b is perpendicular to the lead screw slide table a in a different plane. A table board is installed on the lead screw slide table b. The upper side of the table board is used for clamping a welding fixture. A vacuum joint is installed on the table board. Multiple groups of feeding holes imitating the battery chips and diodes are arranged on the upper side of the welding fixture. An air suction hole communicated with the vacuum joint is respectively arranged at the bottom of each feeding hole;

[0005] The battery chip welder includes a support seat and a welder. A vertical linear module is installed on the side of the support seat. The welder is installed vertically downward on the slider. A circular protection ring is installed at the lower end of the welder. The welding head of the welder passes downward through the protection ring. A downward gas nozzle is installed on the protection ring.

[0006] Preferably, the welding fixture is of a rectangular plate-like structure and U-shaped handles are symmetrically installed at both ends.

[0007] Preferably, a vision detection component is installed on the machine table. The vision detection component is located on one side of the welder. The vision detection component includes a mounting seat. A protruding cantilever is arranged on the front side of the mounting seat. A vertically downward CCD camera is installed at the front end of the cantilever. A coaxial light source is installed below the mounting seat. The coaxial light source is located directly below the CCD camera.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model adopts manual material taking and placing, and CCD vision assistance for positioning. The welding platform transplanting mechanism moves each welding position to the lower part of the welding machine respectively according to the photographed positioning information. Workers only need to be responsible for adding raw materials and recycling finished products, which improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a welding schematic diagram of a battery cell;

[0010] Figure 2 It is a three-dimensional structure schematic diagram of the present utility model;

[0011] Figure 3 It is an exploded structure schematic diagram of the welding platform transplanting mechanism;

[0012] Figure 4 It is a three-dimensional structure schematic diagram of a battery cell welding machine;

[0013] Figure 5 It is a three-dimensional structure schematic diagram of a vision detection component.

[0014] In the figure: 1, machine platform; 2, welding platform transplanting mechanism; 21, guide rail; 22, carrier plate a; 23, lead screw slide a; 24, lead screw slide b; 25, table board; 26, welding fixture; 3, battery cell welding machine; 31, support seat; 32, linear module; 33, welding machine; 34, protection ring; 35, gas nozzle; 4, vision detection component; 41, mounting seat; 42, CCD camera; 43, coaxial light source. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0016] Please refer to Figure 2-5The utility model provides a technical solution: a semi-automatic resistance welding device for solar cells, comprising a machine platform 1, on the upper side of which are respectively installed a welding platform transfer mechanism 2, a cell welder 3 and a visual inspection component 4. The welding platform transplanting mechanism 2 includes a guide rail 21 and a screw slide a23. A carrier plate a22 is installed on the guide rail 21. The screw slide a23 drives the carrier plate a22 to move linearly along the guide rail 21. A screw slide b24 is fixedly installed on the upper side of the carrier plate a22. The screw slide b24 is perpendicular to the screw slide a23 and is skewed from the original. A table 25 is installed on the screw slide b24. The upper side of the table 25 is used to clamp the welding fixture 26. A vacuum joint is installed on the table 25. The upper side of the welding fixture 26 is provided with a plurality of swing holes that are shaped like battery cells and diodes. The bottom of each swing hole is provided with an air suction hole connected to the vacuum joint. After the vacuum joint is connected to negative pressure suction, the swing hole can adsorb and fix the battery cells and diodes to prevent shaking and swaying during welding, thereby improving the stability of welding. The welding jig 26 is a rectangular plate structure with U-shaped handles symmetrically installed at both ends. The welding jig 26 is provided with two handles, one for carrying materials for welding and the other for manually placing materials.

[0017] The battery cell welding machine 3 includes a support base 31 and a welding machine 33. A vertical linear module 32 is installed on the side of the support base 31. The welding machine 33 is installed vertically downward on the slider. An annular protective ring 34 is installed at the lower end of the welding machine 33. The welding head of the welding machine 33 passes downward through the protective ring 34. A downward gas nozzle 35 is installed on the protective ring 34. The input end of the gas nozzle 35 is connected to liquid nitrogen to quickly cool the welding point.

[0018] A visual inspection component 4 is installed on the machine 1, and the visual inspection component 4 is located on one side of the welding machine 33. The visual inspection component 4 includes a mounting seat 41, and a protruding cantilever is provided on the front side of the mounting seat 41. A CCD camera 42 facing vertically downward is installed at the front end of the cantilever, and a coaxial light source 43 is installed below the mounting seat 41. The coaxial light source 43 is located directly below the CCD camera 42. The CCD camera 42 is used to take pictures of the materials on the welding fixture 26. The software identifies and detects the position to be welded based on the photographed information. The welding platform transplanting mechanism 2 moves the welding fixture 26 in the horizontal plane based on the position information to ensure that the welding machine 33 is aligned with each part to be welded after moving down.

[0019] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Semi-automatic resistance welding equipment for solar cells, including a machine table (1), characterized in that: On the upper side of the machine table (1), a welding platform transfer mechanism (2), a solar cell welder (3), and a vision inspection component (4) are respectively installed. The welding platform transfer mechanism (2) includes a guide rail (21) and a lead screw slide table a (23). A carrier plate a (22) is installed on the guide rail (21). The lead screw slide table a (23) drives the carrier plate a (22) to linearly move along the guide rail (21). A lead screw slide table b (24) is fixedly installed on the upper side of the carrier plate a (22). The lead screw slide table b (24) is perpendicular to the lead screw slide table a (23) in a different plane. A table board (25) is installed on the lead screw slide table b (24). The upper side of the table board (25) is used for clamping a welding fixture (26). A vacuum joint is installed on the table board (25). On the upper side of the welding fixture (26), a plurality of material placement cavities imitating the shape of solar cells and diodes are provided. Suction holes communicating with the vacuum joint are respectively provided at the bottom of each material placement cavity; The solar cell welder (3) includes a support base (31) and a welder (33). A vertical linear module (32) is installed on the side of the support base (31). The welder (33) is vertically and downwardly installed on a slider. A circular protective ring (34) is installed at the lower end of the welder (33). The welding head of the welder (33) passes downward through the protective ring (34). A downward gas nozzle (35) is installed on the protective ring (34).

2. The semi-automatic resistance welding equipment for solar cells according to claim 1, characterized in that: The welding fixture (26) is of a rectangular plate-like structure, and U-shaped handles are symmetrically installed at both ends.

3. The semi-automatic resistance welding equipment for solar cells according to claim 1, wherein: A vision inspection component (4) is installed on the machine table (1). The vision inspection component (4) is located on one side of the welder (33). The vision inspection component (4) includes a mounting seat (41). An extended cantilever is provided on the front side of the mounting seat (41). A vertically downward CCD camera (42) is installed at the front end of the cantilever. A coaxial light source (43) is installed below the mounting seat (41). The coaxial light source (43) is located directly below the CCD camera (42).

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