Views: 194 Author: Site Editor Publish Time: 2021-05-31 Origin: Site
The control modes of pneumatic manipulator include manual working mode, back to the original position working mode, single step working mode, single cycle working mode, continuous working mode, with some requirements on safety protection class. Specifically including action of manipulator control, like up, down, left, right, clamping and relaxation control. This process also includes the analysis of system hardware requirements, the selection of appropriate working mode, the selection of appropriate allocation of CPU and I/O address and a complete PLC external wiring diagram, with suitable Brass Pneumatic Quick Release Coupling, and finally completing the pneumatic manipulator program design ladder diagram.
In the process of program design, the specific control requirements of the object should be clarified first. The serial scanning mode of CPU on the program will cause the lag of input and output, and the lag time caused by the scanning mode can be up to two scanning cycles. The longer the program is, the more obvious the lag is, and the lower the control accuracy will be. Therefore, on the basis of realizing the control requirements, the program should be as simple and compact as possible. On the other hand, for the same control object, the control requirements or control timing sequence will change according to different production processes. In this case, it is required that the modification of the program should be convenient and simple, that is, the program should have good flexibility.
Advantages of pneumatic manipulator
Because the pneumatic drive system is safe and reliable, it can work in high temperature, vibration, inflammable, explosive, dusty, strong magnetic, radiation and other harsh environments. And pneumatic manipulator, as a manipulator, it has the advantages of simple structure, light weight, rapid action, stable, reliable, and no pollution of the environment It is also easy to achieve stepless speed regulation, easy to achieve overload protection, and easy to achieve complex action. So pneumatic manipulator is widely used in automobile manufacturing industry, semiconductor and home appliance industry, fertilizer and chemical industry, food and drug packaging, precision instruments and military industry.
The production lines of modern automobile manufacturing plants, especially the welding production lines of the main process, mostly use pneumatic manipulator. The body shell is picked up and put down by vacuum suckers and clamped and positioned at designated stations. All kinds of special pneumatic manipulators are used for the quick approach of the spot welding head and the pressure change control spot welding after the slow down and soft landing. The accuracy of high frequency spot welding force control and the high degree of automation to complete the whole process can be called the most representative pneumatic manipulator application.
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