US 2017/0003671 A1Published application

Device for controlling machine tool

AssigneeMakino Milling Machine Co., Ltd.

InventorsKazunari ISHII, Takehito SHINADA, Masashi NAGAYA

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Abstract

This machine tool has a first rotating feed shaft around a first inclined axis line. Table coordinates are set ahead of time in the machine tool. The table coordinates have imaginary first, second and third linear motion axes that are perpendicular to each other, and an imaginary first rotating feed axis around an imaginary first axis line. The imaginary third linear motion axis is parallel to a third linear motion shaft. One imaginary linear motion axis of the imaginary first linear motion axis or the imaginary second linear motion axis is set above the surface of a workpiece attachment surface, and the imaginary first axis line is set parallel to the one imaginary linear motion axis. A computation unit computes the coordinate values of the imaginary first rotating feed axis in the table coordinates, and a display unit displays the coordinate values of the imaginary first rotating feed axis.

Claims10

Dependent claims

A control device of a machine tool including a first linear motion axis, a second linear motion axis, and a third linear motion axis of a machine coordinate system which are orthogonal to each other and a first rotary feed axis about a first axis line inclined with respect to all linear motion axes of the first linear motion axis, the second linear motion axis, and the third linear motion axis, comprising:

an arithmetic unit which calculates, from a coordinate value of the machine coordinate system, a coordinate value of a table coordinate system including a first virtual linear motion axis, a second virtual linear motion axis, and a third virtual linear motion axis orthogonal to each other with a reference being a workpiece attachment surface of a table and a first virtual rotary feed axis about a first virtual axis line parallel to any virtual linear motion axis of the first virtual linear motion axis, the second virtual linear motion axis, and the third virtual linear motion axis;
and
a display unit which displays a coordinate value of the table coordinate system calculated by the arithmetic unit.

Dependencies are inferred from the claim text.

Facts

Application: 15/039,773Filed 29 Nov 2013
Published: 5 Jan 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G05B 19/402
Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to…
B23Q 1/54
With rotating pairs only , the rotating pairs being the first two elements of the mechanism: two rotating pairs only
G05B 19/18
Electric: numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as…
G05B 19/35
Using an analogue measuring device: for point-to-point control