| 摘要 |
An internal grinding machine having two grinding wheel spindles each of which has a grinding wheel for grinding a part of the inner or end surfaces of a workpiece. The workpiece is ground by both the wheels while it is held in a work spindle. The machine includes a wheel carrier assembly comprising a first wheel carrier table slidable in a direction on the machine base and being provided with a dressing infeed mechanism and an infeeding mechanism for the wheel spindle which is to grind the taper or face of the workpiece, and a second wheel carrier table slidable in a proper direction on the first wheel carrier table and having the grinding wheel spindles adjustably mounted thereon. The machine further includes a shift-infeed table having the work spindle thereon. The shift infeed is provided with a dressing infeed mechanism and an infeeding mechanism for the other wheel spindle. |
