BROACHING DEVICE

摘要

A broaching device has improved working accuracy which is achieved by providing the broaching device with: puller heads (132, 134) supported so as to be able to move in the horizontal direction while holding the front end of the broach (116); main motors (136, 140) capable of moving the puller heads (132, 134); retriever heads (133, 135) supported so as to be able to move in the horizontal direction while holding the base end of the broach (116); sub-motors (138, 142) capable of moving the retriever heads (133, 135); and a control unit (117) for controlling the motors (136, 138, 140, 142) to enable the puller heads (132, 134) and the retriever heads (133, 135) to move synchronously at a constant speed.