The characteristic of the lathe's dragging
Nov 27, 2017
From the lathe processing technology, the driving and control of small and medium-sized lathe has the following requirements: 1. In order to ensure economic and reliable, the main drag motor general selection of squirrel-cage induction motor. In order to meet the requirements of the speed range, mechanical speed is generally used. 2. The start and stop of spindle motor should be realized automatically. General small and medium-sized lathes are used directly start, when the motor capacity is large, commonly used yy-triangular step-down start, in order to achieve rapid parking, generally mechanical or electrical braking. 3. For turning thread, the spindle is required to be positive and reverse. The main spindle of the small lathe is realized by Park, which is normal and reverse wandering, and when the main drive motor capacity is large, the spindle is used to reverse the electromagnetic friction clutch. 4. A cooling pump shall be provided for cutting tool and workpiece in turning process. The cooling pump only needs one-way rotation, and has the linkage relation with the spindle motor. 5. The control circuit shall be provided with necessary safety protection and safe and reliable local illumination.