EP 1024925 A1 20000809 - A POLISHING APPARATUS FOR FORMING ASPHERIC SURFACES
Title (en)
A POLISHING APPARATUS FOR FORMING ASPHERIC SURFACES
Title (de)
POLIERVORRICHTUNG ZUM HERSTELLEN ASPHÄRISCHER FLÄCHEN
Title (fr)
APPAREIL DE POLISSAGE SERVANT A FORMER DES SURFACES ASPHERIQUES
Publication
Application
Priority
- GB 9803182 W 19981023
- GB 9723933 A 19971112
- US 6276597 P 19971024
- US 6546097 P 19971112
Abstract (en)
[origin: WO9921682A1] The apparatus has a frame (1) and a work-holding spindle (4) mounted to said frame. A drive assembly for moving a polishing spindle mounting element with respect to said frame is secured to the frame. A polishing spindle (57) is mounted on said polishing spindle mounting element for rotation about a spindle rotation axis. A drive assembly controller controls the drive assembly to move a polishing head mounted to the polishing spindle assembly along a theoretical profile while maintaining a contact force between said workpiece and said polishing head and controlling the movement of the polishing head using a predetermined velocity profile so that the polishing head removes material from the workpiece by abrasion in accordance with a predetermined material removal profile.
IPC 1-7
IPC 8 full level
B24B 13/00 (2006.01); B24B 13/06 (2006.01); B24B 49/02 (2006.01); B24B 49/16 (2006.01); B24D 13/12 (2006.01)
CPC (source: EP)
B24B 13/00 (2013.01); B24B 13/06 (2013.01); B24B 49/02 (2013.01); B24B 49/16 (2013.01); B24D 13/12 (2013.01)
Citation (search report)
See references of WO 9921682A1
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
DOCDB simple family (application)
GB 9803182 W 19981023; EP 98949148 A 19981023