Research On Belt Grinding For Complex Profile Parts By Using Robot

This paper researches that how to grind the surface of the workpiece by using the robot to grasp the water-tap.Based on man-machine and aesthetics,the water-tap surface is mostly complex,in the past,the grinding of the water-tap surface usually use artificial grinding which is poor on the dimensional consistency,and there is a great influence on the health of worker in the grinding process by fabricating the metal dust.It solves the drawbacks of artificial grinding by using a special grinder,but it not suits for the parts which changes frequently on modeling such as water-tap due to its poor extensibility.Although the robot processing can't compare with the special grinder in terms of precision,but its has high flexibility which is very suitable for the parts which changes frequently on modeling,the volume is not large and the requirement of the precision of dimension and shape is not high.Therefore,this paper grind the surface of the water-tap by using the robotic belt grinding method.In view of water-tap changes frequently on modeling and the adjustment time of the new styling water-tap is long,the grinding parameters are predicted by the establishment of the neural network to realize the off-line setting of the grinding parameters and shorten the required grinding time of the new styling water-tap.Based on the above assumptions,the three factors which have the greatest influence on the grinding surface roughness are selected: the number of belt,the belt speed and the grinding positive pressure,and the impact of these factors on the surface roughness degree of workpiece is explored by making a lot of basic process tests.The experimental data are normalized and the processed data is used as training samples,and the grinding parameters are predicted by the trained neural network after the neural network trained,and the grinding parameter prediction interface are prepared by using the MATLAB GUI toolbox to realize the offline grinding parameters parameter settings.After that,the offline parameters are used to the actual grinding of water-tap to shorten the adjust time of new workpiece.This paper uses the off-line programming software and the teaching device mix programming way because the water-tap surface shape is complex and it is difficult to write the grinding trajectory.It achieves the precise programming of the processing track in the off-line programming software RobotStudio,but it uses the teaching device to complete for the non-processing track and the relevant peripheral signal configuration,it shortens the programming time by combining with the advantages of them.Contrary to the programming of the processing area trajectories,the grinding area is divided into different grinding areas,and the corresponding grinding way is selected according to the characteristics of different parts of the water-tap surface in this paper.The Machining PowerPac track programming plug of RobotStudio is used to program the grinding track,the prepared grinding track simulation verification test is made in the RobotStudio software,and check whether there are problems for instance the interference collision and robot joints overrun before the actual processing.to achieve After observing the water-tap parts by the robot belt grinding,it shows that the surface grinding consistency is good,the surface is smooth,and which achieves the expected setting effect.