Abstract
Aiming at traditional equipment’s problems, such as low tapping efficiency, poor reliability, a set of special automatic tapping machine control system is designed. The system can tap five workpieces at the same time by using Siemens S7-200 series CPU226 AC/DC/Relay PLC technology. The system will carry out technical reform of traditional equipment. The paper describes the control system scheme, work flow chat, I/O wiring diagram and program design of PLC. The operation results meet the use requirements. The system has the characteristics of good maneuverability, high operation safety and high production efficiency, which can greatly reduce the production cost.
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