Repair method of MB multi-wire sawing machine guide wheel

Abstract

The invention discloses a repair method of an MB multi-wire sawing machine guide wheel. The repair method of the MB multi-wire sawing machine guide wheel comprises the steps of inner diameter expanding, end cover selection and machining, sizing, cold fitting, curing, fastening, fine machining, dynamic balancing correction and the like. The first key point of the repair technology is that an outer barrel body of the abraded guide wheel is subjected to the inner diameter expanding, so that the inner side wall of the outer barrel body of the abraded guide wheel with expanded inner diameter can be in interference fit with the outer side wall of an end cover; the middle of the outer side wall of the end cover is provided with a groove for accommodating glue, so that the corresponding positions of the end cover groove and the outer barrel body of the guide wheel. By adopting a mechanical connecting-bonding match method, the outer barrel body and the end cover can be firmly connected, and loosening during working is avoided. The second key point is that the concentricity of a bearing bush hole of the end cover and the central axis of the outer barrel body of the guide wheel is smaller than or equal to 0.01mm through correction and fine machining, the end face circle run-out of the end cover is smaller than or equal to 0.05mm, vibration produced during high-speed guide wheel rotation and net shake are inhibited, smooth surface of a cut silicon wafer is ensured, and cutting accuracy is improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of multi-wire cutting machines, in particular to a method for repairing guide wheels for MB multi-wire cutting machines, which can be used for cutting silicon wafers, sapphire wafers, and ceramic materials. Background technique [0002] At present, the photovoltaic multi-wire cutting technology mostly uses guide wheels to support the wire mesh and cut semiconductor crystals, such as silicon wafers, with mortar. Among them, the main body of the guide wheel of the mainstream slicer Swiss Meyer Burger (hereinafter referred to as MB) is made of carbon fiber composite material outer cylinder and alloy steel end cover; because of its good rigidity, light weight, small inertia, and low energy consumption of equipment advantages and are widely used. However, since this type of guide wheel is bonded by glue; with the prolongation of production time, the glue gradually fails, causing some or all...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of huge losses caused by the irreparable guide wheel, the purpose of the present invention is to provide a repair method that can quickly repair the guide wheel of MB multi-wire cutting machine

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