Research And Design Of Trackbased Thermoforming High Temperature Die Change Manipulator

With the rapid development of China’s aviation industry,the amount of titanium alloys has increased year by year,and titanium alloy parts need to be thermoformed at high temperatures of 400 to 800℃.At present,after a batch of titanium alloy parts have been processed,domestic aviation manufacturing companies cannot replace the high temperature molds in time,but must wait for the high temperature molds to naturally cool in air to room temperature,and then manually change molds.The waiting process takes about 24 hours,but the processing of this batch of parts takes only about 0.5 hours,and the thermoforming machine thus processed has only about 15% utilization rate.The purchase cost of thermoforming machines is too expensive and is not conducive to controlling production costs.In order to ensure efficient production efficiency and lower production costs,domestic aviation manufacturing companies urgently need a high-temperature die change manipulator with a high degree of automation and excellent stability.According to the requirements of aviation companies,this paper designs an automated,high-safe and reliable die change manipulator for thermoforming high temperature die change.This paper mainly studies the mechanical design part of the high temperature die change manipulator.The mechanical part is mainly composed of a lifting system,a telescopic system,a clamping system and a ground driving system.The lifting system consists of a lifting mold system and a lifting platform system.At the same time,the key execution parts of the corresponding system are detailedly designed and selected to achieve safe and reliable replacement of high temperature molds.The three-dimensional mathematical models of each system of manipulator are established by CATIA,and the general assembly model of manipulator is given.ANSYS Workbench for key parts of lifting mold of the manipulator system of heat-structure coupling analysis is conducted on the lifting mechanism,different thickness of insulation material for the thermal analysis,for the different position of motor and mechanical mold heat insulation cover the front end of the thickness of insulation material;Using DELMIA to perform three-dimensional dynamic simulation,the motion paths and spatial coordination of each part of the manipulator are analyzed to verify the rationality of the design.