| 摘要 |
The present invention relates to a pipe jig capable of supporting the inside of a pipe in the pipe. The present invention includes: an actuator extendable in a longitudinal direction of a pipe; and a pair of expanding units fixed to both ends of the actuator respectively, and touching the inside of the pipe by expanding in a radial direction of the pipe. Therefore, the present invention is capable of significantly improving machinability and decreasing a fault rate by preventing the eccentricity or bending of a long pipe when processing the long pipe since the inside of the pipe is supported to sufficiently sustain cutting force of a tool. |
