| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a glass disc which can be applied with dressing in the apparatus, a grinding wheel and/or a polishing wheel of the glass disc following grinding work and/or polishing work. <P>SOLUTION: The apparatus for manufacturing the glass disc is provided in which a grinding wheel 60 for dressing an outer circumferential surface is provided in the drive shaft 31 of a grinding wheel 50 for an inner circumferential surface, a grinding wheel 61 for dressing an inner circumferential surface is provided in the drive shaft 41 of a grinding wheel 51 for an outer circumferential surface, the drive shaft of the grinding wheel for the inner circumferential surface is made to serve also as the drive shaft of the grinding wheel for dressing the outer circumferential surface, and the drive shaft of the grinding wheel for the outer circumferential surface is made to serve also as the drive shaft of the grinding wheel for dressing the inner circumferential surface. <P>COPYRIGHT: (C)2012,JPO&INPIT |
