| 摘要 |
The present invention relates particularly to an oscillating grinding machine. The grinding machine comprises a driving motor ( 3 ) surrounded by a body ( 3 ), and a drive shaft ( 4 ) cooperating with the driving motor. The drive shaft comprises a grinding head ( 5 ) that constitutes a support for a grinding product ( 8 ). The drive shaft ( 4 ) is arranged in two pieces and comprises a main shaft ( 11 ) and an eccentric shaft ( 10 ) arranged rigidly thereto. The eccentric shaft comprises a centre line ( 12 ) that assumes an angle (alpha) against a corresponding centre line ( 13 ) of the main shaft, and thus the grinding head ( 5 ) will assume an eccentric placement in relation to the main shaft ( 11 ). Thus, the grinding head is arranged to oscillate in a substantially spherical plane provided by the rotation of the main shaft and the eccentricity and inclination of the eccentric shaft in relation to the main shaft.
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