Grinding chip fitting type grinding plate

摘要

A grinding chip fitting type grinding plate uses grinding chips to which cylindrical mounting portions are added, thereby facilitating the attachment and removal of the grinding chips. The grinding plate comprises a plurality of grinding chips each having a cylindrical mounting portion, a grinding chip mounting plate to which the grinding chips are attached, and a holding plate. Each of the grinding chips is provided with an O-ring attached to the cylindrical mounting portion which has a front end to which a diamond chip is bonded. A projection portion is integrally formed at a rear end of the mounting portion. The grinding chip mounting plate has a plurality of grinding chip receiving holes which are radially provided. Each of the receiving holes is a stepped hole composed of a mounting portion receiving hole and a projection receiving hole which is radially offset with respect to the mounting portion receiving hole by a predetermined eccentric amount. The holding plate has a plurality of holes through which the diamond chips passe. The mounting portion of each of the grinding chips is inserted into the mounting portion receiving hole of the grinding chip mounting plate against the resistance of the O-ring. The projection is then rotated so that the grinding chip is fixed to the grinding chip mounting plate. The holding plate is coupled with the grinding chip mounting plate by attaching the holding plate from the side where the diamond chips exist.