VALVE SEAT MACHINING DEVICE, AND VALVE SEAT MACHINING METHOD USING SAID VALVE SEAT MACHINING DEVICE

摘要

Provided is a valve seat machining device (1) for machining a valve seat (118) in a valve device (101) having a valve main body (110), which forms a passage for a fluid, and a valve driving unit (120), which drives a valve body (124) that can closely engage with the valve seat (118) in the valve main body (110), said valve seat machining device (1) comprising: a pedestal (10) that is mounted to the valve main body (110); a main body (20) that can move in two different axes relative to the pedestal (10); a supporting body (30) that can move in the driving direction of the valve body (124) relative to the main body (20); a main shaft (40) that can turn around an axis parallel to the driving direction of the valve body (124) relative to the supporting body (30); and a tool holder (50) that holds a tool (T) for machining the valve seat (118).