Mobile punching device for punching holes in the wall of a pipe comprises sensors for detecting the position of the punching device in the peripheral and/or longitudinal direction relative to a pipe and a switching unit

摘要

Mobile punching device (3) comprises sensors for detecting the position of the punching device in the peripheral and/or longitudinal direction relative to a pipe (2) and producing and further feeding a corresponding position signal and a switching unit for receiving the position signal of each sensor and releasing the punching process after receiving the position signals from all sensors.