Numerical controller and numerical control method

Patent metadata

Field	Value
Publication number	US-2019271965-A1
Application number	US-201715778078-A
Country	US
Kind code	A1
Filing date	Jul 14, 2017
Priority date	Jul 14, 2017
Publication date	Sep 5, 2019
Grant date	—

Abstract

A numerical controller includes an analysis unit to analyze a machining program and extract a coordinate rotation angle that is a rotation angle of a coordinate system specified in the machining program; and a coordinate transformation unit to transform a coordinate value in the machining program into a coordinate value in a machine tool to be controlled on the basis of polarity information created on the basis of at least one of a movement direction and a rotation direction of an axis of the machine tool, and the coordinate rotation angle.

First claim

1 : A numerical controller comprising:
an analyzer to analyze a machining program and extract a rotation angle of a coordinate system specified in the machining program; and a coordinate transformer to transform a coordinate value in the machining program into a coordinate value in a coordinate system of a machine tool to be controlled on a basis of polarity information created on a basis of at least one of a movement direction and a rotation direction of an axis of the machine tool, and the rotation angle.

2 : The numerical controller according to claim 1 , wherein
the rotation angle is a rotation angle of a rotation axis of the machine tool.

3 : The numerical controller according to claim 2 , further comprising a transformation information calculator to calculate coordinate transformation information for transforming a coordinate value in the machining program into a coordinate value in a coordinate system of the machine tool on a basis of the polarity information and the rotation angle, wherein
the coordinate transformer transforms a coordinate value in the machining program into a coordinate value in a coordinate system of the machine tool by using the coordinate transformation information and the polarity information.

4 : The numerical controller according to claim 3 , further comprising a setter to set the polarity information on a basis of at least one of the movement direction and the rotation direction, wherein
the transformation information calculator calculates the coordinate transformation information on a basis of the polarity information set by the setting-unit setter.

5 : The numerical controller according to claim 4 , wherein
the setter sets polarity information on the rotation axis after setting polarity information on the linear axis of the machine tool.

6 : The numerical controller according to claim 1 , further comprising a selector to select specific polarity information corresponding to an operation of the machine tool from a plurality of pieces of the polarity information, wherein
the analyzer extracts a combination of axes corresponding to the operation from the machining program, and the selector selects the specific polarity information on a basis of the combination of axes.

7 : The numerical controller according to claim 1 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

8 : A numerical control method comprising:
an analysis of analyzing a machining program and extracting a rotation angle of a coordinate system specified in the machining program; and a coordinate transformation of transforming a coordinate value in the machining program into a coordinate value corresponding to a machine tool to be controlled on a basis of polarity information created on a basis of at least one of a movement direction and a rotation direction of an axis of the machine tool, and the rotation angle.

9 : The numerical controller according to claim 2 , further comprising a selector to select specific polarity information corresponding to an operation of the machine tool from a plurality of pieces of the polarity information, wherein
the analyzer extracts a combination of axes corresponding to the operation from the machining program, and the selector selects the specific polarity information on a basis of the combination of axes.

10 : The numerical controller according to claim 3 , further comprising a selector to select specific polarity information corresponding to an operation of the machine tool from a plurality of pieces of the polarity information, wherein
the analyzer extracts a combination of axes corresponding to the operation from the machining program, and the selector selects the specific polarity information on a basis of the combination of axes.

11 : The numerical controller according to claim 2 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

12 : The numerical controller according to claim 3 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

13 : The numerical controller according to claim 4 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

14 : The numerical controller according to claim 5 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

15 : The numerical controller according to claim 6 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

16 : The numerical controller according to claim 9 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

17 : The numerical controller according to claim 10 , wherein
the coordinate value in the machining program is a coordinate value of an inclined plane coordinate system that is a coordinate system relative to an inclined plane.

Assignees

• Mitsubishi Electric Corp

Inventors

• Tsuda Takeshi
• Kato Aya

Classifications

• G05B2219/33263

  Conversion, transformation of coordinates, cartesian or polar · CPC title

• G05B19/4086 Primary

  Coordinate conversions; Other special calculations · CPC title

• G05B2219/36341

  Prepare program to control multiple slides at the same time · CPC title

• G05B19/4093

  characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part program, for the NC machine · CPC title

• G05B2219/35

  Nc in input of data, input till input file format · CPC title