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US 2015/0355622 A1Published application
Optimized control of a metal-cutting machine tool
AssigneeSiemens Aktiengesellschaft
InventorsJochen Bretschneider, Thomas Pitz
Life of this patent
Estimating the term…
Abstract
Milling errors are to be prevented by repairing in particular NC parts programs by evaluating spatial information for smoothing a cutting or milling path section instead of evaluating only information along an individual cutting or milling path section. Relationships between adjacent cutting or milling path sections are thus taken into consideration in a smoothing process.
Claims9
A method for controlling a metal-cutting machine tool with a parts program, comprising:
- describing with the parts program a path composed of a plurality of adjacent cutting path sections representing a 3D contour;
- with each cutting path section comprising a series of path elements composed of support points and line elements connecting respective pairs of the support points;
- defining a tolerance value;
- analyzing at least a part of a first of the cutting path sections as to whether the defined tolerance value is satisfied in relation to at least one path element of at least one second cutting path section adjacent to the first cutting path section;
- separately examining a plurality or each of the support points of the first cutting path section by taking into account all support points located in a predefined spatial region around the support point to be examined;
- optimizing a course of the path by modifying, adding to or removing from the first cutting path section at least one path element so that the defined tolerance value is satisfied;
- and
- controlling the metal-cutting machine in accordance with the optimized course of the path.
5 more elements
A control facility for controlling a metal-cutting machine tool, comprising:
- a storage device storing a parts program for controlling the metal-cutting machine tool,
- wherein the parts program describes a path composed of a plurality of adjacent cutting path sections representing a 3D contour;
- with each cutting path section comprising a series of path elements composed of support points and line elements connecting respective pairs of the support points,
- a computing device configured to
- optimize a course of the path by analyzing at least a part of a first of the cutting path sections as to whether a defined tolerance value is satisfied in relation to at least one path element of at least one second cutting path section adjacent to the first cutting path section,
- separately examine a plurality or each of the support points of the first cutting path section by taking into account all support points located in a predefined spatial region around the support point to be examined, and
- optimize a course of the path by modifying, adding to or removing from the first cutting path section at least one path element so that the defined tolerance value is satisfied, and
- an activation device configured to control the metal-cutting machine tool in accordance with the optimized course of the path.
5 more elements
Dependencies are inferred from the claim text.