| 摘要 |
PURPOSE:To have dressing of a grinder element even during grinding of a work by furnishing a dressor on a machine tool such as a grinder and polisher. CONSTITUTION:A voltage impressing means 24 impresses a positive voltage onto the grinding surface of a grinder element 5 to form positive electrode and a negative voltage onto an electrode 17 to form negative one, and making electrolyte filling the space between these electrode works a current medium so as to generate electrolytic action. A sintering material to bind abrasive grains on the grinding surface of grinder element 5 as positive electrode is electroconductive and therefore carried away for the electrode 17 as negative one via the electrolyte, while the abrasive grains have generally high electric resistance and are non-conductive, so that embedded grains protrude from the sintering material with proceeding of the electrolytic action to cause regeneration of the grinding ability. That is, dressing the grinder element 5 can be made by means of electrolytic action while the grinder element 5 is working with grinding of a work 10. |
