Numerically controlled curved surface machining unit

Details Numerically controlled curved surface machining unit Numerically controlled curved surface machining unit

2006-02-14

2006-02-14

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S028000, C700S187000, C318S570000

Reexamination Certificate

active

06999845

ABSTRACT:
A numerically controlled curved-surface machining unit equipped with three linearly moving axes and, at least, one rotary axis, including a simultaneous multiple-axis control NC machine numerically controlled by a numerical control unit with a numerical control NURBS interpolation function. The unit enables reading, as CL (cutter location) data, tool control point vector data and tool axis vector data, along a machining direction on a workpiece coordinate system for a curved surface, obtaining feed rates therefor, and calculation by conversion of the CL data into position vectors of three linear axes on a machine coordinate system, rotation angles and feed rates on the machine coordinate system so as to operate the simultaneous multiple-axis control NC machine on the basis of a machine configuration of the simultaneous multiple-axis control NC machine. The unit forms at least one NURBS curve having continuous curvature, calculates data therefor and converts the NURBS curve into NC data for NURBS interpolation.

REFERENCES:
patent: 5282143 (1994-01-01), Shirai
patent: 5726896 (1998-03-01), Jia et al.
patent: 5808263 (1998-09-01), Beltrami
patent: 5815401 (1998-09-01), Otsuki et al.
patent: 5936864 (1999-08-01), Otsuki et al.
patent: 5955856 (1999-09-01), Sato et al.
patent: 5994863 (1999-11-01), Fujita
patent: 6198979 (2001-03-01), Konno
patent: 6268871 (2001-07-01), Rice et al.
patent: 6311098 (2001-10-01), Higasayama et al.
patent: 0 706 103 (1995-09-01), None
patent: 2 341 243 (2000-03-01), None
patent: 5-334223 (1995-12-01), None
patent: 9-114512 (1997-05-01), None
patent: 2001-092516 (2001-04-01), None
“On Nurbs : A Survey”, L. Piegl, IEEE Computer Graphics and Applications, IEEE Inc. New York, US, vol. 11, NR, pp. 55-71.
“Integer Subdivision Algorithm for Rendering Nurbs Curves”, N. Anantakrishinan et al, Visual Computer, Springer, Berlin, DE, vol. 8, NR. 3, pp. 149-161.
Mold Engineering Issued July 1998, pp. 8-9.
Machine & Tools Issued Feb. 1998, pp. 12-17.
The Nurbs Book by L. Piegl, et al.

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