| Patent Number |
Title Of Patent |
Date Issued |
| 4631869 |
Automatic workpiece engaging apparatus in grinding machines |
December 30, 1986 |
| An apparatus for automatically causing a workpiece to engage a rotary tool. A pulse signal generated by rotating a reference workpiece is stored, and then a pulse signal generated by rotating a mounted workpiece is counted. The counted pulse signal and the stored pulse signal are compare |
| 4617761 |
Helical gear grinding machine |
October 21, 1986 |
| A machine for automatically grinding a helical gear. The machine comprises a first rotational drive source for rotating a grinding wheel, a second rotational drive source for rotating a helical gear in mesh with the grinding wheel, a third rotational drive source for displacing the helic |
| 4589230 |
Grinding machine |
May 20, 1986 |
| A grinding machine including a grinding wheel spindle motor for rotating a grinding wheel, a workpiece spindle motor for rotating a workpiece such as a gear to be ground in mesh with the grinding wheel, and a traverse motor for moving a table supporting the workpiece spindle motor. A pow |
| 4587766 |
Synchronous operation control apparatus in grinding machines |
May 13, 1986 |
| A synchronous operation control apparatus for rotating a grinding wheel and a gear to be ground thereby in synchronism to grind teeth of the gear to a nicety. A pulse generator is connected to a rotational drive source for rotating the grinding wheel, and a counter is connected to an out |
| 4561216 |
Workpiece engaging apparatus in grinding machines |
December 31, 1985 |
| An apparatus for bringing a rotary grinding tool into mesh with a workpiece while minimizing a grinding resistance by the workpiece when the workpiece is to be ground by the rotary grinding tool. An electric power detector is associated with the rotary tool and a sensor is associated wit |
