Abstract: A set of sorting and palletizing system based on programmable logic controllers (PLC) and industrial robots was designed to improve the problems of the traditional experimental equipment comprehensive.The system combines many modules such as PLC,industrial robot,touch screen,sensor,transducer,motor,hydraulics,and pneumatics,which can realize the automatic sorting and palletizing of black and white workpieces,as well as aluminum and plastic workpieces.The experimental results show that the system can sort and palletize black aluminum,black plastic,white aluminum and white plastic workpieces with high accuracy,and can use the touch screen to realize the system manipulation and monitoring.This system can be used to design multiple experimental project trainings,improve the conditions for comprehensive teaching of machinery,industrial robots and automation,and provide a reference value for improving students’ practical ability and the innovation of experimental equipment.

Key words: sorting and palletizing, PLC, touch screen, pneumatic technology