Design Of Automatic Grinding And Processing System For Sand Core Riser

According to the actual investigation on the production site of the core mould factory and the typical process analysis of the core production,the sand cores used for producing the crankcase of the casting cylinder block can be divided into two parts: core forming and riser treatment.There is a riser on the surface of the sand core formed by die casting from the die casting machine,which needs to be polished.Because the working area of sand core grinding treatment is connected with the working area of sand core moulding,the core injection machine will make the field temperature higher in the process of die casting core;and when the riser of sand core begins to grind,the sand and dust cut out is full of the surrounding environment,under this condition,the continuous operation of workers will pose a great threat to their health.So the factory seeks automated processing solutions to improve the status quo.In view of this working condition,an automatic processing system is designed to replace workers with industrial robots to solve the continuous and boring physical labor consumption of workers,reduce the harmful hidden dangers of the surrounding environment to the human body,realize the unmanned processing of sand cores,logistics transmission,management and real-time uploading of production data,and provide technology for automated production management of factories and integration of production information.Based on the analysis of the grinding process and the design of the automatic grinding system scheme,the proper automation system is selected and the work flow of the whole machining system is designed and perfected,and according to the shape characteristics of the clamp,the structure design and calculation of the clamp with the sand core are carried out,and the machining area and The process Division and Machining path planning are studied and analyzed,and then on the basis of selecting a certain type of robot,the key working equipment in the whole system is designed,and the whole set of automatic workstation model is finally established,and the coordinate relation of each connecting rod is established under the given robot parameters on the basis of the D-H connecting rod formula.The forward and reverse kinematics equations of the robot are deduced and solved,the motion trajectory of several robot end actuators is planned and simulated in MATLAB Robotics Toolbox environment by using the knowledge of homogeneous transformation of coordinates and interpolation planning of trajectory.Finally,the robot program is generated by using Robot Art software to simulate the machining path and observe whether there is interference.