Resin powder bonding metal fund hard rock cup type tool bit emery wheel

The utility model relates to an emery wheel, especially a resin powder bonding metal fund hard rock cup type tool bit emery wheel, including diamond segments, aluminum alloy matrix and emery wheel side protector, aluminum alloy matrix be the base of a cup type, and diamond segments is located aluminum alloy matrix's upper surface, the upper portion wall of cup adaptation of diamond segments and the base of glass type, diamond segments and aluminum alloy matrix fixed connection for the emery wheel side protector of diamond segments's side, emery wheel side protector is located diamond segments's side, emery wheel side protector and aluminum alloy matrix fixed connection. When using, because emery wheel side protector is located diamond segments's side, can play the guard action to diamond segments's side, the operator can not lead to diamond segments's breakage because of misoperation yet, hurts sb. 's feelings even. 本实用新型涉及种砂轮，尤其是种树脂粉粘接金属基金刚石杯型刀头砂轮，包括金刚石刀头、铝合金基体和砂轮侧边防护装置，铝合金基体为个杯型的基座，金刚石刀头位于铝合金基体的上表面，金刚石刀头与杯型