| 摘要 |
The positioning and driving device has two motors (M1, M2) fixed to the frame (120) and coupled to the tool (6) and a first carriage (1) by an endless belt or chain (R), so that, depending on the setting of the motors, the tool can either be moved in the first direction by displacing the first carriage, or can be driven in a set position with the first carriage stationary.
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