The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Sep. 28, 1998
Haruhisa Higasayama, Kasugai, JP;
Hagemu Kato, Toyota, JP;
Yoshiki Muta, Toyota, JP;
Eisuke Kajisa, Toyota, JP;
Kouji Tamaoka, Chiba, JP;
Other;
Abstract
Method of generating tool movement path data,includes determining a tool constraining surface (,) which is offset from a three-dimensional surface (,) to be generated, by a distance equal to a radial dimension of rotary machining tool (,), in a direction normal to the three-dimensional surface, determining tool path constraining surfaces (,) for constraining the tool according to the geometry of the three-dimensional surface, and obtaining three-dimensional curved line equations representing intersection lines (,) between the constraining surfaces (,). Since desired curved surfaces may be used as the tool path constraining surfaces (,), the tool movement path can be suitably determined with high freedom depending upon the geometry of the three-dimensional surface (,) to be generated. The tool movement path data generated from three-dimensional curved line equations have a reduced volume but assure high machining accuracy, as compared with tool movement path data consisting of a multiplicity of cutter location points to which the tool is moved.