ELECTRICAL DRIVING DEVICE AND METHOD FOR MACHINING TOOL

WIPO Patent Application WO/2016/099119

A1

The present invention relates to electrical driving device and method for a machining tool allowing lathe work to be done by means of a single electrical driving unit by selectively delivering the driving power of a motor to a cylinder and a spindle by means of a clutch and a reduction gear unit. The electrical driving device for a machining tool according to the present invention comprises: a fixed part (10) fixedly disposed on the main body of a machining tool; a driving shaft (20) connected to a motor (not shown) to receive rotational power; a cylindrical spindle (30) rotatably disposed on the fixed part (10); a reduction gear unit disposed inside the spindle (30) and comprising a sun gear (41), a planetary gear (42), a ring gear (43) and a carrier (44); a cylinder (50) fixedly disposed in the center of the carrier (44) in the reduction gear unit; a draw bar (60) accommodated inside the cylinder (50) so as to be moved linearly in the axial direction due to the rotation of the cylinder (50); a clutch coupler (70) disposed on the rear part the spindle (30) to be slidable along the axial direction thereof to selectively connect the spindle (30) to any one from among the driving shaft (20) and fixed part (10); and a clutch driving part for moving the clutch coupler (70) back and forth in the axial direction of the spindle (30).

JP2007508951	Machine tool transmission
JP3510097	OSCILLATING SPINDLE DEVICE FOR MACHINE TOOL

CHANG JUNGHWAN (KR)
JANG DAEKYU (KR)

PCT/KR2015/013736

June 23, 2016

December 15, 2015

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UNIV DONG A RES FOUNDATION (KR)

B23Q5/04; B23Q5/54; H02K7/10

KR101452304B1	2014-10-23
KR20030074700A	2003-09-19
KR20090029170A	2009-03-20
KR20100089455A	2010-08-12
KR20100099762A	2010-09-15

OH, Wihwan (KR)
오위환 (KR)

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