APPARATUS FOR WORKING SCREW THREAD OF CERAMIC PIN

摘要

PURPOSE: A thread machining apparatus for a ceramic pin is provided to reduce the failure rate of a cutting fluid circulation unit and to extend the life of cutting fluid by removing the dust of a ceramic pin mixed in the cutting fluid. CONSTITUTION: A thread machining apparatus for a ceramic pin(100) comprises a chuck(110), a chuck driving unit(111), a body(101), a tool rest(120), a main grinding unit(150), and an auxiliary grinding unit. One side of a ceramic pin(10) is separably fixed in the chuck. The chuck driving unit rotates the check to rotate the ceramic pin on a center axis which is a first direction parallel to a longitudinal direction of the ceramic pin. The chuck driving unit is coupled to the body. The tool rest is coupled to the body and is transferred in the first direction and a second direction vertical to the first direction. The main grinding unit is separably fixed in the tool rest. Multiple grinding wheels are coupled to a rotary shaft of the main grinding unit. One grinding wheel is coupled to the rotary shaft of the auxiliary grinding unit. Each rotary shaft of the main grinding unit and the auxiliary grinding unit is rotated by receiving compressive air.