Machined product

Starting from the lathe processing process, the driving and control of small and medium-sized lathes have the following requirements:

 1. In order to ensure economy and reliability, the main drive motor generally uses a cage asynchronous motor. In order to meet the requirements of the speed range, mechanical speed change is generally used.  

2. The start and stop of the spindle motor should be able to achieve automatic control. Generally, small and medium-sized lathes use direct start, when the motor capacity is large, commonly used YY-triangle buck start, in order to achieve rapid stop, mechanical or electrical braking is generally used. 

3. For turning threads, the main shaft is required to be positive and reversed. Small lathe spindle positive and reverse rotation of the main drag motor positive and reverse to achieve, when the main drag motor capacity is large, the main shaft positive and reverse commonly used electromagnetic friction clutch to achieve. 

4. A cooling pump should be provided for cooling cutting tools and workpieces during turning. The cooling pump only needs to rotate in one direction and has a chain relationship with the main shaft motor. 

5. The control circuit should be provided with necessary safety protection and safe and reliable local lighting.