| 摘要 |
The invention relates to a device (1) for machining workpieces, comprising a work container (2) and a vibration drive (7) that comprises a motor (8) which has a motor drive end (9, 10) at the ends and which comprises two unbalance devices (15, 16), each of the unbalance devices being connected to a respective motor drive end (9, 10) and having a base mass (18) and at least one additional mass (19, 20) with an eccentric mass center of gravity. The base mass (18) and the additional mass (19, 20) are connected by means of a rotary connection; a rotary stop or two rotary stops are formed on each unbalance device (15, 16), two rotary end positions of the at least one additional mass (19, 20) being determined relative to the base mass (18) by means of said rotary stop(s); each unbalance device (15, 16) has at least one locking element which can be moved between a release position and a locking position; the at least one additional mass (19, 20) can be selectively locked or released in one rotary end position with respect to the rotational direction oriented towards the other rotational end position by means of the locking element; and each unbalance device (15, 16) comprises an adjusting device which interacts with the locking element and has an adjusting means which can be operated in particular in an electric and/or pneumatic and/or hydraulic and/or mechanical manner. |
