MACHINE TOOL AND DEVICE FOR CONTROLLING MACHINE TOOL

WIPO Patent Application WO/2017/135403

A1

The present invention provides a machine tool with which it is possible to move a main shaft in an arbitrary range and perform machining while preventing adverse effects on an engaging means using a simple structure and control, without making the structure and control more complex or relying on machining; and a device for controlling the machine tool. A machine tool (100) and a device (180) for controlling the machine tool (100). In the machine tool (100): a main shaft (110) for openably/closably holding a workpiece is provided on a bed (161) so as to be capable of moving in the axial direction; each time a prescribed product is machined from the workpiece, the main shaft (110) is controlled so as to release the holding of the workpiece, move in the axial direction, and hold the workpiece at a prescribed holding position; engaging means (165), (162), (164) are provided between the main shaft (110) and the bed (161), the engagement position of the engaging means (165), (162), (164) varying with the movement of the main shaft (110); a product is machined continuously from the workpiece; and the holding position is set each time a product is machined so that the engaging means (165), (162), (164) engage at different engaging ranges in accordance with the machining movement of the main shaft (110).

SUZUKI TOSHIYUKI (JP)
KANDA AKINOBU (JP)

PCT/JP2017/003960

August 10, 2017

February 03, 2017

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CITIZEN WATCH CO LTD (JP)
CITIZEN MACHINERY CO LTD (JP)

B23B13/02; B23B1/00; B23B7/06; B23Q1/58; B23Q15/24

WO2005065870A1

2005-07-21

JP2003225804A	2003-08-12
JPH02232104A	1990-09-14
US20110179918A1	2011-07-28

TSUNO, Takashi (JP)

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