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1、 Case introduction
This case mainly introduces the application of frequency converter in manipulator, and uses the unique acceleration and deceleration related function of frequency converter.
2、 System introduction
With the increasing automation of manufacturing industry, more and more industries use manipulator. Manipulator is generally used as auxiliary equipment of other equipment, such as injection molding machine, in order to improve the degree of automation.
The power of the manipulator is divided into two parts: electric part and pneumatic part. The electric part is used to drive the back and forth movement of the manipulator on the base. Generally, high and low speed are adopted. It is required to run stably, stop accurately and not exceed the limit. The pneumatic part controls the grasping action of the manipulator.
The electrical part is controlled by frequency converter, and the requirements are as follows:
1. The acceleration and deceleration are smooth and the time is short;
2. Forward and reverse rotation without impact and smooth switching;
3. Stable operation without impact and jitter;
4. Accurate parking requires almost the same position every time.
3、 Process flow
The power of the manipulator is divided into electric and pneumatic parts. The electric part is used to drive the manipulator to move back and forth on the base
With high and low speed, it is required to operate stably, stop accurately and not exceed the limit. The pneumatic part controls the grasping action of the manipulator.
4、 Solution
Combined with the process requirements of the manipulator and the requirements for electrical control accuracy, the unique acceleration and deceleration and multi-stage speed correlation function of the frequency converter can smoothly realize the multi-stage speed acceleration and deceleration switching, so as to ensure that the manipulator is more stable and stops more accurately in the round-trip movement.
5、 Field wiring diagram
6、 Summary
After field test and follow-up observation, the manipulator operates stably with short acceleration and deceleration time, stable start and stop and accurate stop, which can well meet the technical requirements of equipment design.