Global Patent Index - EP 0808693 B1

EP 0808693 B1 20011205 - Method and apparatus for dressing the CBN or diamond ring layer of a grinding wheel

Title (en)

Method and apparatus for dressing the CBN or diamond ring layer of a grinding wheel

Title (de)

Verfahren und Vorrichtung zum Bearbeiten eines ringförmigen CBN. oder Diamantbelags von Schleifscheiben

Title (fr)

Procédé et appareil, pour dresser la partie de CBN ou diamant d'une meule

Publication

EP 0808693 B1 20011205 (DE)

Application

EP 97102464 A 19970215

Priority

DE 19620972 A 19960524

Abstract (en)

[origin: EP0808693A1] The method involves using a tool grinding disc (16,18), esp. with an SiC coating, where the tool grinding disc is pressed against the workpiece disc (10) at a first speed, then the tool grinding disc is operated at reduced speed until the coating is round or flat. The body sound of the workpiece disc spindle is measured with one or more ultrasonic sensors (34,36) and analysed. The movement of the tool disc against the workpiece disc is performed automatically and at a defined speed until contact is made. A lower speed is used after contact is detected by one or both ultrasonic sensors and the grinding process is terminated when at least one sensor detects roundness or flatness over one workpiece disc rotation.

IPC 1-7

B24B 53/08; B24B 49/18

IPC 8 full level

B24B 49/18 (2006.01); B24B 53/08 (2006.01)

CPC (source: EP US)

B24B 49/18 (2013.01 - EP US); B24B 53/08 (2013.01 - EP US)

Designated contracting state (EPC)

AT CH DE DK FI FR GB IT LI SE

DOCDB simple family (publication)

EP 0808693 A1 19971126; EP 0808693 B1 20011205; AT E210002 T1 20011215; DE 19620972 A1 19971127; DE 59705615 D1 20020117; DK 0808693 T3 20020304; US 5885132 A 19990323

DOCDB simple family (application)

EP 97102464 A 19970215; AT 97102464 T 19970215; DE 19620972 A 19960524; DE 59705615 T 19970215; DK 97102464 T 19970215; US 80630997 A 19970226