Cutting device

Abstract

A light emitting unit 109 of cutting insents testing unit 132 for testing cutting blade state of cutting insents and a photography unit 114 is arranged opposited, and fixed on cutting cover 104. As a result of the light emitting unit 109 and the photography unit 114 is arranged opposited, therefore, peripheral shape images which enable identify cutting blade 102a of cutting insents 102 definitely are obtained even if droplets of splashing cutting water existed. Otherwise, through fixing the light emitting unit 109 and the photography unit 114 on the cutting cover 104, thereby without need of using optical fiber and wiring. In this way, a cutting device with functions of photographing for cutting blade of cutting insents, testing imperfects and abrasion gets rid restriction of ligth for photography should use optical fiber wiring, enables hold the state of the cutting insents assuredly to photograph.

Description

technical field [0001] The present invention relates to a cutting device having a cutting blade, and more particularly to a cutting device having a function of detecting the state of chipping and wear of the cutting blade. Background technique [0002] Wafers formed with multiple devices such as LCs and LSIs are cut vertically and horizontally by cutting blades rotating at high speeds, and are divided into individual chips for use in various electronic devices. [0003] The above-mentioned cutting insert is mounted on a high-speed rotating spindle and used, and a cutting edge portion is formed on the outer periphery thereof. The cutting edge portion is formed by fixing abrasive grains made of diamond or the like by means of electroforming, metal bonding, or resin bonding. Therefore, cutting causes the cutting edge portion to deteriorate over time, causing chipping and wear, and there are defects caused by cutting. The problem that the quality of each device deteriorates. ...

AI Technical Summary

Problems solved by technology

Therefore, in a configuration in which light is irradiated to the cutting blade and the reflected light is captured, the cutting water is splashed by the high-speed rotation of the cutting blade, and the spray of the cutting water scatters the reflected light, and the cutting blade may not be recognized from the obtained image. , so sometimes it is impossible to detect the chipping, wear, etc. of the cutting insert

[0006] In addition, the light emitted from the light-emitting element is guided to the vicinity of the cutting blade by the optical fiber, and the reflected light is also guided to the light-receiving element by the optical fiber. Due to the poor flexibility of the optical fiber, there is also the problem of difficult wiring.

In addition, since the cutting unit including the cutting blade moves during cutting, the optical fiber also moves. In this way, there is also a problem that the optical fiber lacking in flexibility hinders the movement.

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