Control System Optimization For Automatic Production Line Of Power Shell

The power shell is aluminum alloy shell widely used in the Industrial switching power supply and other equipment.Currently the domestic demand of power shells is increasingly greater and suitable for mass production.Many domestic power shell processing enterprises manufacturing automation is very low,and manual operation accounts for the main part.some factories transit to a semi-automatic production line.It is urgent to be completely transformed that the factories still did not realize the full automation of the production line.The project group is entrusted by the enterprise cooperation enterprise,and optimal design the existing automatic production line of the power shell in the enterprise.Due to the change of the power shell product demand,the production line must be improved and optimized,and the production process needs improvement and optimization,which results in the optimization design of the control system.Based on this topic,the original control system can not meet the new full automatic production line function demand.Starting from the background of the original embedded control system optimization design,the paper analyzed and optimized the hardware and software of the embedded system to meet the requirements of the new situation of the enterprise.Studied mainly from the following aspects:1.According to the original production process of the power shell,a new production process was designed.It mainly introduced the structure design and motion analysis of the manipulator.The functional requirements and performance indexes of the automatic power shell production line control system were proposed.The two kinds of electric control optimization schemes were designed,and the embedded system control scheme was determined by comparison.2.Through the analysis of hardware performance indicators of the embedded controller of the power shell production line,The overall scheme of the hardware design of the embedded control system is optimized.Then it was confirmed that the master-slave controller was the same hardware frame.According to the current industrial processor processor research,the STM32F407VET6 chip was chosen as the core control chip of thesystem,which can well meet the system function requirements.Then the modular design method is used to complete the embedded system hardware design,at the same time,the power isolation and the signal isolation of the communication circuit and the input and output channels of the control circuit were provided.Finally,the experimental platform was built,and the related functional modules were tested.3.The overall software architecture of the embedded system for the automatic production line of the power shell was optimized.To aim at the real-time and multi-task management requirements of the master controller software system,the ?C/ OS-III real-time operation system was chosen by comparing the existing embedded real-time operation system.at the same time,the software program of the master controller was completed and a good human-computer interface was also designed.Through the analysis of robot control algorithm from the slave controller,S-curve speed planning was carried out and verified by the test,The feed forward + PID feedback compound control algorithm was designed.Finally,the superiority of the control performance of the motion algorithm was proved by MATLAB simulation.4.The existing parts of the production line have been tested on the spot.First of all,the manipulator,tapping station and placement of screw station was debugged separately.Then,the existing assembled production line was tested online to summarize the faults and record the test data.According to the actual production efficiency and product qualification rate,the production requirements of the cooperative enterprises could be met.