Self-centering synchronously clamped silicon rod butting machine

Abstract

The invention discloses a self-centering synchronously clamped silicon rod butting machine. The silicon rod butting machine comprises a feeding slipway seat, a feed motor, a feed slipway, a longitudinal feeding slipway, a longitudinal feeding motor, a jacking device, a self-centering double-supporting positioning clamping device, a vertical rack with a saw side, a saw blade, a hydraulic station and an electric control tank, wherein the self-centering double-supporting positioning clamping device can be used for self-centering, positioning and clamping a silicon rod to be cut so that axial lines of all silicon rods to be cut are on the same axial line, and two end faces of each silicon rod to be cut are vertical to the axial line; the jacking device can guarantee that the silicon rods to be cut are reliably clamped in a jacking state so that the silicon rods to be cut are always in an accurate positioned and clamped state in the processing procedure; since the silicon rod section is positioned and clamped in two steps, the silicon rods are not only free from sticking, but also free from a plurality of times of positioning and clamping in the whole cutting processing procedure; four sides of the silicon rods can be cut by only clamping once, the processed size precision and shape precision is higher than those of the prior art, and the processing efficiency can be improved by 25-30%.

Description

Technical field: [0001] The invention relates to silicon rod processing equipment, in particular to a silicon rod cutting machine. Background technique: [0002] In the production process of solar cell modules, the processing of silicon rods produced in the crystal pulling workshop into silicon wafers must go through the processes of cutting off multiple ends, cutting into sections, cutting into squares and slicing in sequence. After the silicon rods are cut into silicon rod segments, they must be The square cutting machine cuts the silicon rod section into a square with rounded corners, commonly known as square cutting. At present, there are mainly two types of silicon rod cutting machines according to the cutting tools. The first is a band saw blade cutting machine, and the other is a saw disc cutting machine. Before cutting the band saw blade cutting machine, one end of the cut monocrystalline silicon rod and the positioning short axis are coated with glue, heated and pr...

AI Technical Summary

Problems solved by technology

These two silicon rod cutting processes have shortcomings in the actual processing process. The first process method needs to glue the single crystal silicon rods, and heat the sol after the processing is completed. The process is very complicated. The cutting machine It needs to be equipped with auxiliary devices such as indexing mechanism, and the cutting efficiency is very low. At the same time, it is impossible to eliminate the difference between the end face of the silicon rod and the silicon rod after the previous cutting process due to the poor outer roundness of the single crystal silicon rod and the rough and irregular surface. The defect that the central axis is not vertical, because in the squaring process, the positioning short axis is glued with the end face of the single crystal silicon rod, it is easy to cause the silicon rod to be scrapped during the squaring process. The disadvantages of this squaring process are: The silicon ingot needs to be clamped twice to complete the squaring process, and the single crystal silicon ingot must be calibrated manually for each clamping. The operation is cumbersome, the debugging efficiency is very low, and the squaring is easy to be scrapped.

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