以往机床动作程序的控制,一般是由中间继电器控制电磁阀来实现的。例如我厂最早设计的 3 MZ 1310全自动球轴承内圈沟磨床和MZ 208全自动轴承内圆磨床所采用的中间继电器多达50只左右。由于接触环节多,容易影响机床正常可靠运行。为了进一步提高机床动作的可靠性,我厂和无锡机床 In the past, the control of the machine tool motion program was usually realized by controlling the solenoid valve in the middle relay. For example, the earliest design of our factory 3 MZ 1310 automatic ball bearings inner ring groove grinder and MZ 208 fully automatic bearing internal grinder used in the relay as many as 50 or so. Due to the many links, easy to affect the normal operation of the machine. In order to further improve the reliability of machine tools, I plant and Wuxi machine