Numerically controlled curved surface machining unit

Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C700S187000, C700S193000, C318S570000

Reexamination Certificate

active

06934601

ABSTRACT:
A numerically controlled curved-surface machining unit comprises a component converting matrix·angle-addition value forming function of converting CL (cutter location) data into components on a normal coordinate system on the basis of the machine configuration of the simultaneous multiple-axis control NC machine, a component converting function of converting from the workpiece coordinate system to the normal coordinate system, a function of forming second angles of a second rotary axis on the normal coordinate system, a compensating function of forming a continuous angle distribution from a distribution of the second angles, a function of forming first angles of a first rotary axis on a coordinate system rotated by the second angles at the second rotary axis, a compensating function of forming a continuous angle distribution from a distribution of the first angles, a machine coordinate transformation matrix forming function of obtaining a matrix for converting the tool control point vectors on the workpiece coordinate system into a machine coordinate system by using the first angles and the second angles, and a machine coordinate converting function of converting the tool control point vectors into the machine coordinate system by using the machine coordinate transforming matrix.

REFERENCES:
patent: 4639868 (1987-01-01), Tanaka et al.
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: 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: 7-334223 (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 Jul. 1998, pp. 8-9.
Machine & Tools Issued Feb. 1998, pp. 12-17.
The Nurbs Book by L. Piegl, et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Numerically controlled curved surface machining unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Numerically controlled curved surface machining unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerically controlled curved surface machining unit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3476678

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.