| 摘要 |
A grinding machine and a method for grinding buttons of a rock drill bit are disclosed. The grinding machine has a frame and a grinding head. The grinding head has a rotatable grinding spindle. The free end of the grinding spindle is intended to drive, and to replaceably carry, a grinding cup. The grinding spindle has a first rotational axis, the grinding spindle being intended to rotate around the same as well as also around a second rotational axis. The first rotational axis of the grinding spindle is arranged to assume at least two separate positions, one of which positions is collinear with the second rotational axis and the second of which positions places the first rotational axis at an angle beta with the second rotational axis. |
