MACHINE TOOL

WIPO Patent Application WO/2017/203824

A1

Provided is a machine tool capable of reducing the amount of heat generated while limiting increases in the size of the cutting tool holder in the axial direction of the rotating tool. The machine tool (1) is provided with a cutting tool holder (10) with a tool placement surface (50) on which multiple rotating tools (T2), which are rotated by a rotation-driving force (F1) that is transmitted to driven gears (G1), are disposed so as to project in the axial direction (D1) of the rotating tools. The cutting tool holder (10) comprises: a transmitting gear (60), which is capable of moving along an imaginary plane (PL1) that passes through the multiple driven gears (G1) and which meshes directly or indirectly with each of the multiple driven gears (G1) at different positions (P1-P6); a rotation-driving section (70) for meshing with the transmitting gear (60) to rotate the transmitting gear (60); and an object selection section (80) for moving the transmitting gear (60) along the imaginary plane (PL1) and positioning the transmitting gear (60) so as to mesh directly or indirectly with the driven gear (G10) to be driven that has been selected from the multiple driven gears (G1).

JP2008298212	GEAR HEAD
JPS63295143	ATTACHMENT FOR MULTIAXIS-CONTROL MACHINE TOOL

YUGUCHI KATSUSHI (JP)
MASUDA YUJI (JP)
SASAI YASUNAO (JP)
KONDO TOMOYUKI (JP)

PCT/JP2017/012798

November 30, 2017

March 29, 2017

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STAR MFG CO (JP)

B23Q5/04; B23B7/04; B23B21/00; B23B29/24; B23B39/16; B23B47/30; F16H1/22; F16H1/28

JPS63107507U	1988-07-11
JPH0570809U	1993-09-24
JPH06226519A	1994-08-16
JP2011079085A	2011-04-21
US4847960A	1989-07-18
US4037493A	1977-07-26
US5768931A	1998-06-23
JPH0911014A	1997-01-14

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