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:
May. 11, 1999
Filed:
Jun. 12, 1997
Johan Massee, Lunteren, NL;
Other;
Abstract
An apparatus for machining a workpiece comprises means for clamping the workpiece, means for rotatingly driving the clamped workpiece, a tool for machining the workpiece, the tool having a part for engaging the workpiece, a tool holder, means for moving the tool holder with respect to the clamping means and a control unit with a memory for one or more control programs. The control unit is arranged to control the moving means according to a control program by means of measuring means providing the x,y-positions of the tool holder in such a manner that the tool follows a desired path along the clamping means for machining the workpiece. The apparatus comprises a measuring device located at a predetermined reference position with respect to the moving means. The control unit is arranged to control the moving means in such a manner that said tool part is moved along to the measuring device, wherein the measuring device delivers a measuring signal to the control unit, wherein the control unit determines the shape of said tool part and the position thereof with respect to the tool holder directly from the x,y-positions provided by the x,y-measuring means and stores these x,y-positions in the memory for use in the (each) control program for the corresponding tool.