This pneumatic system teaching experiment platform. It combines the advantages of pneumatic, electronic and computer technology, as the main control unit of the electric dynamic closed-loop control system, and can be combined according to the different requirements of the experiment to achieve a variety of experimental teaching purposes.
Electrical stepping control system Where, the electric stepping control system is a pneumatic control system with a programmable controller as the core. 1. It greatly simplifies the structure of the pneumatic system and improves the reliability. The extended development programming controller is the main Control unit, which has standardized hardware and software design, the output can directly drive the solenoid valve, and has perfect monitoring function anti-interference ability. The arc changes in the project without changing the hardware device, only the application program can be modified, and the experimental project is more More, the use, the superiority of the control system is more obvious, it has analog and digital input and output, logical operation timing counting sequence control human-computer interaction, recording and display functions are very suitable for multi-functional pneumatic teaching experiments. Because, the control system has no mechanical touch. Yes, you are greatly improved. , in a variety of circumstances to do the test. In addition, the mountain ten, 1 and the rest of the small. 1 straight and light.
It is easy to fit inside the test bench for electromechanical and pneumatic formation.
2Pneumatic system experimental principle and design method The pneumatic system teaching experiment project can be assembled according to the needs, including automatic adjustment bed test soft mattress durability test automatic transmission belt test automatic drilling machine test bolt distribution mechanism test garbage collection compaction Test and automatic lift conveying test, etc.
Let's take the dynamic drilling machine experiment as an example to analyze its rationality and design method.
When the part is processed. The jaws are clamped by clamping the 7 cylinders. Then, the drill advancement and retreat are realized by the rack mechanism through the movable 7 cylinder. When the tapping advances, the motor rotates forward; when the tapping retreats, the motor reverses. When the machining hole is deep, the iron filings are discharged by controlling the automatic feeding cylinder to advance and retreat in multiple stages. The action is completed by two cylinders of the person 8 and the cylinder 1 is programmed to press the start button. The cylinder advances. Clamp 1 as. then! The cylinder drives the drill bit to feed. When the drill section travels the switch 12, the 8 cylinders are retracted to remove the iron filings, then continue to feed to 13, and then back to, remove the iron shoulders, and finally feed to 4, and then return to the 1. position. Complete the drilling. The cylinder retreats and releases the working 3-position process if a full pneumatic control system is used. The system is phased and complex. System loop 3. For control, just replace the 2-position 5 vent control reversing valve with the 2-position 5 electric control reversing valve. The travel switch is replaced by a magnetic switch sensor. Its aerodynamic part simplifies the structure of Li Pan, Yi 2 automatic drilling, Song position. 1 Process 3 The end-of-speech teaching experiment platform greatly simplifies the structure of the pneumatic control system, improves the reliability, has the advantages of good development flexibility, simple wiring and convenient installation, and strong anti-interference. Moreover, the design method is applicable to other various types of programmable controllers, and the actual use instructions have a wide application value.
2 against, å³¥ 1 move the dragon. The control system is called hydro-pneumatic and sealed in the mechanical performance testing machine of the swivel chair. 2,234,35.
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