EP 0389871 A3 19910206 - METHOD FOR CONTROLLING AN AUTOMATIC GRINDING MACHINE FOR CLEANING CASTINGS
Title (en)
METHOD FOR CONTROLLING AN AUTOMATIC GRINDING MACHINE FOR CLEANING CASTINGS
Publication
Application
Priority
CH 112989 A 19890329
Abstract (en)
[origin: EP0389871A2] The automatic grinding machine for cleaning castings, having a machine column (10) carrying locking means (5, 6) for a casting (1) to be treated, which locking means (5, 6) can be adjusted towards one another and together, and a tool holder (3) which carries a grinding and/or a cut-off wheel (2) and is supported on a machine block (11) in such a way that it can be set against the casting (1) via slide means (4), permits contactless, precise production of a control signal owing to the fact that the locking means (5, 6) are electrically insulated from the machine column (10) via insulation means (12) and the grinding and/or cut-off wheel (2) is electrically insulated from the tool holder (3) via insulation means (13), that the grinding and/or cut-off wheel (2) is designed to be electrically conductive, and that the grinding and/or cut-off wheel (2) and the locking means (5, 6) and the casting (1) clamped between the latter are connected in series with a controllable high-voltage generator (20) and an ignition-current analysing circuit (21) supplying a control signal (22). <IMAGE>
IPC 1-7
IPC 8 full level
B24B 27/033 (2006.01); B24B 49/10 (2006.01)
CPC (source: EP US)
B24B 27/033 (2013.01 - EP US); B24B 49/10 (2013.01 - EP US); Y10T 83/141 (2015.04 - EP US); Y10T 83/855 (2015.04 - EP US); Y10T 408/17 (2015.01 - EP US); Y10T 409/307224 (2015.01 - EP US)
Citation (search report)
- [Y] DE 3105578 A1 19820715 - MAAG ZAHNRAEDER & MASCHINEN AG [CH]
- [Y] DE 3717568 A1 19881208 - LACH SPEZIAL WERKZEUGE GMBH [DE]
- [Y] DE 2204159 A1 19720817 - G & B AUTOMATED EQUIPMENT LTD
- [A] CH 571931 A5 19760130 - MOVOMATIC SA
Designated contracting state (EPC)
AT DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0389871 A2 19901003; EP 0389871 A3 19910206; EP 0389871 B1 19940914; AT E111389 T1 19940915; CH 678292 A5 19910830; DE 59007098 D1 19941020; ES 2060837 T3 19941201; US 5079874 A 19920114
DOCDB simple family (application)
EP 90104858 A 19900315; AT 90104858 T 19900315; CH 112989 A 19890329; DE 59007098 T 19900315; ES 90104858 T 19900315; US 49107690 A 19900309