â–¡ Jiang has Yong Zeng Zhong Zongquan, bureaucratic effect. D control technology requires ordinary lathes to be widely used in small and medium-sized enterprises, but the relay control system has many shortcomings due to complicated wiring, easy to burn contacts, slow control response, single function, fault diagnosis and troubleshooting. The use of machine tools and the quality of the products are so important that it is necessary to modify them. Programmable Logic Controller (PLC) is a general industrial automatic control device that integrates microcomputer technology, automation control technology and communication technology. It has strong reliability, high performance and price ratio, and is easy to use. It is a powerful tool for industrial automation. This paper mainly introduces the application process and method of PLC in the modification of CA6140 lathe, and replaces the traditional relay control with PLC control. In the modification process of the CA6140 lathe, it is necessary to retain the control function of the original relay, and to strengthen and improve the reliability and convenience control of the machine tool. The specific control technical requirements are as follows: power supply closing and shut-off control; spindle forward rotation, reverse rotation, stop, forward rotation jog and reverse jog control, only one of these 5 movements can be carried out at the same time. Later priority principle; in order to prevent accidents, there should be emergency stop control, which is realized by reverse motor braking. When pressing the emergency stop button, PLC can intelligently judge the rotation and turn to the dynamic switch HI, HaH31 stop and close stage 1 The point of the point is reversed and the point is also 5|, (the application of the linear source weighting method for the quality management system in the quantitative evaluation of the quality management system) Shilin â–¡ Huang Zhongquan â–¡ Zhang Genbao â–¡ Dai Hongmei â–¡ Wang Shude activity scores in the quality record and then use the linear weighting method to quantitatively analyze the various indicator layers of the evaluation index system until the score of the evaluation target is finally analyzed how to achieve organizational quality The actual quantity evaluation of management and its significance. In the current quality management system, the evaluation of the quality of an organization's quality management system is usually judged by the auditor. The auditor judges whether the sufficiency and effectiveness of an organization meet the requirements of IS09000 by virtue of his subjective feelings. Therefore, this evaluation method is highly subjective and arbitrarily large. In order to avoid such subjectivity of the National High Technology 863 Project (No. 2002AA413510) and to reduce the evaluation error, we should try to use quantitative methods for evaluation. The process of D quality management system is subdivided according to the IS09000:2000 standard. The quality management of an organization can be understood as: through the regulation and management of numerous and interconnected breaks in the organization, the main axis is in the forward or reverse direction. Reverse braking, this function is that the relay control can't be done anyway; when machining the workpiece, the coolant must be moved after the spindle rotates, before the tool feeds, the workpiece is processed, and after the tool is retracted, the coolant should stop. Work; main motor Ml, tool feed motor M2, cooling pump motor M3 should have short circuit and overload protection, any motor overload or short circuit, other motors should stop working; the working state of the lathe should have corresponding indicator light . 0 PLC-based system design programmable controller, motor circuit design see. Software design According to the control technology requirements, the PLC programming software CX-Programmer is used to design the ladder diagram, compile the PLC program, then transfer the compiler to OMRONC200HPLC, and apply the virtual reality test to the design program to see if it meets the control technical requirements. Compiled for the ladder diagram designed on the CX-Programmer and tested to meet the requirements. The external wiring of the PLC can realize the machine control function of the PLC according to the ladder diagram to complete the external wiring of the PLC, and complete the modification of the CA6140 lathe. It is clear from the PLC wiring diagram that more complex controls can be accomplished with very simple wiring. External wiring diagram for PLC electrical control. B Conclusion After the transformation of the machine tool based on PLC, the machine tool is in good running condition, the control function is greatly enhanced, and the operation is more convenient, reliable and accurate. The production efficiency and processing quality have been improved, and it has been well received by workers. It has achieved good social and economic benefits. This method can also be applied to the transformation of other machine tools or equipment, which can complete more complicated control and has a great promotion. value. (Finish) Ring Magnets Radiation,Radial Ring Neodymium Magnet,Neodymium Ring Magnet,Neodymium Multi-Pole Ring Magnets Ningbo Besten Magnet Co., Ltd. , https://www.bestenmagnets.com
Modification of ordinary lathe based on PLC