Laser scribing method for photovoltaic cell processing

Abstract

The invention relates to the technical field of photovoltaic cell processing and discloses a laser scribing method for photovoltaic cell processing. The laser scribing method comprises a supporting box body, wherein a negative pressure workbench is movably connected to the inner side of the middle part of the supporting box body in a sleeved manner, and a fixed-distance displacement mechanism is fixedly mounted on the bottom surface of the negative pressure workbench. For a laser scribing machine for photovoltaic cell processing and the scribing method for the laser scribing machine, the negative pressure workbench, the fixed-distance displacement mechanism, a limiting mechanism, an avoiding groove, a moving frame, a first advancing mechanism and a second advancing mechanism form a four-station laser scribing machine body; compared with a single-station laser scribing machine body, by adopting the device disclosed by the invention, a reasonable material changing cycle interval is maintained while high machining efficiency is guaranteed, and the working efficiency of a worker cannot be greatly weakened; and compared with a multi-station automatic feeding laser scribing machine, the device has a good man-machine interaction operation mode, the machining quality can be detected and fed back in real time, and the problem that batch products are scrapped is avoided.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cell processing, in particular to a laser scribing method for photovoltaic cell processing. Background technique [0002] The laser scribing machine uses a high-energy laser beam to irradiate the surface of the workpiece, so that the irradiated area is partially melted and vaporized, so as to achieve the purpose of scribing. Because the laser is focused by a special optical system, it becomes a very small Light spot, high energy density, because the processing is non-contact, there is no mechanical stamping force on the workpiece itself, the workpiece is easily deformed, the thermal influence is minimal, and the marking accuracy is high. It is widely used in the cutting and marking of solar panels and thin metal sheets. piece. [0003] At present, most laser scribing machines adopt a single-station processing structure, which has the advantages of simple processing structure, low production ...

AI Technical Summary

Problems solved by technology

[0003]At present, most laser scribing machines adopt a single-station processing structure, which has the advantages of simple processing structure, low production cost, and simple maintenance. The lack cannot be ignored, the main reason is that the refueling cycle is short, and the working efficiency of the staff will decrease with the increase of the processing time, which will lead to low processing efficiency. To solve the problem of low production efficiency, technicians have also developed many The laser scribing machine with automatic loading of the station has the advantages of high production efficiency and high automation, but its cost is expensive, the maintenance is complicated, and if there is a deviation in the processing process at one end, there will be batches of products scrapped, regardless of whether it is a single Station laser scribing machine or multi-station laser scribing machine, both have a common disadvantage, that is, the high temperature of the laser generated by the laser head may cause the processing hidden danger of burning the non-processed parts of the workpiece. In view of the above problems, this application provides a Laser scribing machine for photovoltaic cell processing and scribing method thereof

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