Research On Machining Technology Of Robot Milling And Polishing Faucet

At present,the polishing of water faucets is mostly manual processing,i.e.polishing with water faucets by hand on grinding wheels and belts.This kind of production with high strength,repeatability and bad environment is harmful to workers' health and high technical requirements,which makes it difficult for enterprises to recruit workers.Some large and medium-sized enterprises begin to use industrial robots to polish faucets,but they can not completely replace manual polishing,robot polishing and manual polishing have no obvious advantages.The main problems of robot polishing are: the faucet products are diverse,the surface configuration is complex,the robot online programming is difficult,time-consuming,and the workers' technical requirements are high;only 70-80% of the work can be completed,the corner surface of the faucet can not be thrown away,and 100% polishing can not be done;the faucet surface has a layer of cast hard oxide,the robot polishing takes a long time,and the processing cycle of a single faucet needs 3-5 minutes.Clock;Robot polishing cost is high,polishing tool wear is large,replacement frequency is high.Based on these problems,this paper proposes to adopt the milling and polishing technology of industrial robots,which has the following advantages: using off-line programming technology to solve the programming problem;removing the hard skin of the tap castings and more than 80% of the workload in milling,leaving no dead angle,and processing speed is fast,and 100% of the workload can be achieved;robot polishing workload is small,and the abrasive belt wear is short;The processing efficiency is high.This paper combines theoretical analysis with experimental research to study the robotic milling and polishing technology.The specific research contents are as follows:1.Based on the theory of robots,the off-line programming software is used to model and simulate the milling process of robots.The models of milling machine,faucet and worktable are built by using three-dimensional software,and the simulation experiment platform is built.In Robot Art,state machine is defined,milling tool is defined,TCP is set,machining trajectory is generated,and trajectory optimization is carried out.Finally,milling simulation motion of robot is realized.2.Analyse the processing characteristics of taps and build a milling experiment platform.The shape and material characteristics of the faucet are studied,and the processing characteristics of the faucet are analyzed.The experimental design is carried out,the required robots and force sensors are selected,the clamps of the force sensor and the faucet are designed,and the milling experiment platform is built.3.Milling experiments have been carried out.The experiment proves that the 40-2 lead brass tap can be milled by 200 N industrial robot.The processing speed is fast and the processing quality basically meets the roughing requirements of the tap.It provides technical support for the design of milling and polishing equipment for industrial robots in the future.