Structure Design And Analysis Of Side Take Manipulator

In recent years, with the rapid development of injection products industry, the demand for manipulator which is the injection molding machine is growing. Except for the imported one, the enterprises which manufacture manipulator in the domestic are more and more. Their main products are the pneumatic series and triaxial servo series. Because of vertical injection molding machine has its higher gravity, which causes that the pickup operation is not convenient. It has a greater need for a specially equipped manipulator to assist with the pickup. Enterprises also need to develop new technologies and new series to improve their competitiveness in the manipulator market.The purpose of this research subject is to design a side-taking manipulator for the vertical injection molding machine. Based on years of experience in design and development from the enterprises, a new structure of manipulator is proposed and the main performance parameters of design is identified. The structure model of the side-taking manipulator is completed by Solidworks and the selection of main parts that bring from outside is completed by calculation.The static analysis is made for the simplified model of the manipulator with ANSYS to get the its stress and deformation diagrams. The diagrams show that the maximum stress is 4.65Mpa and the maximum displacement is 0.44mm. The result meets the requirement of design. Also, the dynamics analysis is made for simplified model of the manipulator to get its low-level natural frequency and the first to six modal vibration mode diagrams. The results of the modal vibration analysis shows that the vibration amplitude of the arm has the greatest impact on the vibration of the whole machine. Finally, the structural of arm is optimized with the topology optimization method. Then revision the simplified model of the manipulator. Static analysis and dynamic analysis is made for the model again. Showing that the maximum stress and the maximum displacement stay constant but the low-level natural frequency is increased compared with the original one. So the stability of the system is improved by optimizing.The kinematics analysis is made for the side-taking manipulator with ADAMS.Through kinematics analysis, we can get the displacement-velocity curve of translational direction and angular velocity-angular acceleration curve of rotational direction. From these curves, it is found that the movement regularity meets the actual situation. The manipulator run smoothly. Finally, put forward the fastest total cycle time of side take manipulator, which improve the production efficiency and provide data basis for design and development in the future to shorten the development cycle.