Development Of Automatic Handling Manipulator For Automotive Bearing Production Line

At present,the manufacture of automobile bearings is still in the semi-automatic stage,and there are still a large number of manual operations on its production line,many of which have the characteristics of high repeatability,high labor intensity,dangerous and so on.Because of the special structure,shape and manufacturing process of automobile hub bearing,the automatic production of automobile hub bearing is more difficult than that of ordinary bearing.With the gradual increase of product demand and labor cost,it is more and more important to realize the local automatic production between several adjacent stations in the automobile hub bearing assembly line.According to the demand put forward by a Japanese-funded enterprise in Dalian,an automatic handling manipulator suitable for various types of automobile hub bearings is developed in this paper.First of all,this paper studies the current situation of the automatic handling manipulator at home and abroad,and collects the relevant data.After a detailed investigation of the automobile bearing production line at the enterprise site,this paper determines the design principles and technical indicators of the equipment.The scheme design of each part of the automatic handling manipulator is completed,including the automatic handling process,the overall layout,the mechanical structure scheme and the control system scheme.According to the established scheme,the mechanical structure of the equipment is designed in detail,and the three-dimensional modeling and two-dimensional drawing processing are completed by using Solidworks software.The finite element analysis of the key parts of the manipulator is done in the ANSYS Workbench simulation environment.The results of finite element analysis are used to optimize part of the structure,and it is verified that the strength and stiffness of the structure meet the requirements of the actual working conditions,and to a certain extent,the danger of resonance damage in the working process of the manipulator is eliminated.The control system mainly includes control loop,human-computer interaction system and control program.According to the design requirements of the control system,this paper makes a detailed design of the power supply circuit,PLC control circuit,servo motion control circuit and pneumatic control circuit.In this paper,the interactive interface is designed by using the touch screen configuration software.The human-computer interaction system is composed of interactive interface,control button and other components.Through the analysis and induction of the safety problems of linkage production,combined with the mechanical structure and control loop of the handling manipulator,the control program is designed.This paper completes the prototype assembly and control cabinet construction of the automatic handling manipulator,and installs it to the production site of the enterprise for debugging and operation.Finally,this paper makes targeted improvement and improvement of the equipment according to the operation results,and passed the production test.The successful application of the automatic handling manipulator not only verifies the rationality of the design,but also completes the design goal and solves the related problems,which provides a successful case for the transformation of the automobile bearing production line and makes the equipment have more room for promotion.