NUMERICALLY CONTROLLED GRINDING MACHINE

An apparatus capable of automatically determining grinding wheel dressing timing for dressing a grinding wheel. The apparatus estimates the abrasion of the grinding wheel in a grinding cycle on the basis of machining data and grinding conditions, and divides the grinding cycle into a plurality of st...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YONEDA, TAKAO, SAKAKIBARA, YASUJI, YAMANAKA, MASASHI, ARIMOTO, NAOKI, KATSUTA, MAMORU, HAYASHI, YUTAKA, SAKAKURA, MORIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS POLISHING REGULATING TRANSPORTING
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Beschreibung
Zusammenfassung:	An apparatus capable of automatically determining grinding wheel dressing timing for dressing a grinding wheel. The apparatus estimates the abrasion of the grinding wheel in a grinding cycle on the basis of machining data and grinding conditions, and divides the grinding cycle into a plurality of stages according to the estimated abrasion to carry out grinding wheel dressing after the completion of every stage of the grinding cycle. In grinding a workpiece having a plurality of ground sections, the abrasion of the grinding wheel in grinding each ground section is estimated, and the abrasion is accumulated in accordance with grinding sequence. A ground section after grinding which grinding wheel dressing is to be carried out is determined on the basis of the cumulative abrasion. Similarly, the abrasions is accumulated for each of workpieces. A grinding wheel dressing is carried out after the completion of grinding a workpiece so that the cumulative abrasion may not exceed a predetermined value.