Development Of Automatic Assembly System For Mobile Phone Interface Components

With the changing trend of mobile phone products with fast changes,many components involved and high requirements for assembly accuracy,the traditional mobile phone assembly and manufacturing system is difficult to meet the production needs.To solve this problem,a set of automatic assembly system for mobile phone interface components was developed,and the automatic control technology,machine vision correction method and robot trajectory planning of the system were researched and performed experimental validation.According to the mobile phone interface component assembly process requirements,design the automatic assembly control system.Selected hardware for the system,the scheme based on PLC was determined,the IE cc-link industrial Ethernet to realize communication between the modules.Based on assembly process,analyses the working state of each module process and design the logic control and positioning control program,studied the Link signal handshake handshake algorithm and design process,to ensure that the product reliable transfer between modules.To counter the problem of low mobile phone parts assembly precision,visual correction system is designed.Hardware selection analysis of the visual system,completed the visual system hardware design.Research the algorithms of image edge detection and template matching algorithm based on feature,assembly error are analyzed factors,finished visual software design using c # programming language.In order to improve the assembly efficiency of components,the kinematics model of SCARA robot was analyzed,the polynomial interpolation algorithm of trajectory planning was studied and the trajectory planning was carried out.The rationality of trajectory planning was verified through simulation analysis and the stability of robot operation was guaranteed.Completed the assembly of the equipment,the assembly,debugging and production verification have been passed.The modular bus runs stably,the material transfer is safe and reliable,the visual identification and positioning accuracy is high,the response is fast,the SCARA works smoothly,the production efficiency of the whole line meets the requirements of the design index,the electrical performance and safety protection meet the industry standards,and the module structure adopted is conducive to the upgrade and reuse of the equipment in the later period.