US Patent No. 9,656,362

TOOL CHANGER EQUIPPED WITH COVERS


Patent No. 9,656,362
Issue Date May 23, 2017
Title Tool Changer Equipped With Covers
Inventorship Masahiro Murota, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 9,656,362

1. A tool changer, comprising:
a turret configured to grip tools, the tool changer being adapted to change a tool mounted on a spindle of a machine tool
by indexing a desired tool by rotating the turret;

a front cover adapted to cover a first surface of the turret;
a rear cover adapted to cover a second surface of the turret, the rear cover including a cylindrical portion having a cylindrical
surface portion having a cylinder center axis; and

a gap defined between the front cover and the rear cover, wherein the front and rear covers are distant from each other by
the gap,

wherein
the first surface of the turret is positioned farther from the spindle of the machine tool than from the gap,
the second surface of the turret is positioned closer to the spindle of the machine tool than the gap is,
an upper end of the cylindrical portion of the rear cover is higher than an upper end of the front cover in a state where
tool change is not performed, and

a protrusion, protruding from the cylindrical surface portion away from the cylinder center axis, is provided on the rear
cover at a position between an upper surface of the upper end of the cylindrical portion of the rear cover and the gap in
the state where tool change is not performed, and the protrusion is configured to block chips and cutting fluid from intruding
into the gap.