EP 0304907 A3 19891227 - METHOD AND CONTROL OF BOTH THE INITIAL AND FINAL FEED MOVEMENTS OF A GRINDING WHEEL
Title (en)
METHOD AND CONTROL OF BOTH THE INITIAL AND FINAL FEED MOVEMENTS OF A GRINDING WHEEL
Publication
Application
Priority
DE 3728390 A 19870826
Abstract (en)
[origin: EP0304907A2] The method serves to control the gradual initial feed movement or final feed movement of a grinding wheel (18) relative to a workpiece (10) or a measuring sensor. In this method, a series of measured values for the current consumption of the rotary drive motor (24) of the grinding wheel (18) are recorded during the grinding or final feed movement. If a certain series of measured current values remain below a certain limit, a further initial feed step is triggered. During the control of the final feed, the final feed movement is stopped when the measured current values reach a certain limit. This control of the final feed forms the second phase of a combined final-feed control method in whose first phase a spark current between the grinding tool (18) and the workpiece (10) is produced and measured. This spark current serves as a measure of the distance between the tool (18) and the workpiece (10). <IMAGE>
IPC 1-7
IPC 8 full level
B24B 47/22 (2006.01); B24B 49/16 (2006.01)
CPC (source: EP US)
B24B 47/22 (2013.01 - EP US); B24B 49/16 (2013.01 - EP US)
Citation (search report)
- [X] DE 2208123 A1 19721116
- [X] DE 2537630 A1 19760311 - SEIKO SEIKI KK
- [X] DE 3501579 A1 19860724 - EMAG MASCHFAB GMBH [DE]
- [A] DE 3007721 A1 19801002 - RATHENOWER OPTISCHE WERKE VEB
- [X] DE 2422940 A1 19751204 - WALDRICH WERKZEUGMASCH
- [A] DE 2004911 A1 19710812 - VILN EXNI I METALL
- [A] DE 2204159 B2 19740502
- [A] CH 642897 A5 19840515 - MO Z SHLIFOVALNYKH STANKOV [SU]
- [A] DE 2257313 A1 19730530 - AMBAR INVESTMENT
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0304907 A2 19890301; EP 0304907 A3 19891227; DE 3728390 A1 19890309; JP S6464776 A 19890310; US 4947015 A 19900807
DOCDB simple family (application)
EP 88113845 A 19880825; DE 3728390 A 19870826; JP 21085788 A 19880826; US 23606588 A 19880824