| 摘要 |
PURPOSE:To stabilize an operation and enable highly accurate machining by forming the title machine tool with a base, a column holding an inclined guide part, a machining unit provided inside the inclined guide part, a balance unit held by the column, etc. CONSTITUTION:The title machine tool consists of a base 1, a column 3 having an inclined guide part 2, a machining unit 4 provided inside the inclined guide part 2, and a balance unit 5 held by the column 3. After a workpiece W is fixed in position, a tool 43 is rotated by a motor 44 while driving a feed motor 23 to move the machining unit 4. At this time, a piston 52 slides on the inner periphery of a balance cylinder 51. Thereby, the balance unit 5 keeps balance in the vertical direction with respect to the feeding direction A while supporting a partial weight, at the gravity position G' of the machining unit 4. As a result, the tool 43 can be kept in position enabling machining with high accuracy. |
