Analysis And Optimization Of Cutting Force For High-pressure Copper Contact Finger Deburring

The burrs are ubiquitous in the processing process,which has adverse effects on the accuracy,appearance quality,service life,assembly accuracy,use requirements,rework positioning,and operational safety of the parts,resulting in the performance,reliability,and stability of the entire mechanical system greatly reduced.The copper contact parts of the high-voltage circuit breaker generate a large number of burrs in the machining process,which seriously affect its function,mainly reflected in the fact that the high-voltage power environment is very sensitive to burrs,and the presence of burrs can easily cause tip discharge phenomena,which severely aggravates the arcing of the copper contacts.Ablation,which greatly reduces the dielectric strength of the dielectric and affects the circuit breaker's ability to block,creates an inestimable safety hazard,and therefore requires effective methods for burr removal.At present,enterprises use manual removal methods to remove poor consistency and low efficiency,and the high noise,high metal dust,and high operational intensity in the removal process endanger the physical and mental health of workers.Therefore in recent years,robotic and other automated deburring technologies have received extensive attention.This article takes the high-voltage copper contact finger as the research object,Based on the kinematics analysis of the six-axis industrial robot,the robot modeling and motion simulation using MATLAB and ADAMS software lay the foundation for the robot's trajectory planning and position accuracy control.Based on off-line programming,the initial trajectory of the deburring of the robot is obtained.The burr removal experiment based on three factors of cutting volume is designed.The force sensor is used to measure the cutting force of the deburring robot and the relationship between cutting force and surface roughness is explored.Has important engineering significance.The robot body pose changes are calculated,and the robot kinematics principle is analyzed.Based on this,a robot model based on D-H parameters is established.The robot kinematics is simulated and analyzed using MATLAB and ADAMS to verify the accuracy of the robot mathematical model.Using the off-line programming method to get the deburring initial path of the robot,verify the accuracy of the path;complete the robot deburring experiment based on the three factors of cutting amount,measure the force information,process and analyze the collected force information,analyze the experimental results,and obtain the rotor pressure.,feed speed,side knife amount of cutting tangential force.The BBD(Box-Behnken)method was used to design the experimental program based on the three factors of cutting amount,and the experimental model was analyzed by using the method of response surface methodology.The cutting force and roughness were used as the response to optimize the process parameters,and the optimal experimental parameters were obtained.The experimental results show that the optimal parameter combination can satisfy the optimization goal.