Research On Machining Error Inspection And Compensation Of Open Loop NC System

The modern manufacturing industry puts forward a very high request to the numerical control tool machine , the numerical control tool machine develops gradually toward high accuracy and high speed and intelligence and ability. At present,the domestic researches a lot about monitoring error and compensating for error in machining. Error compensation is a method that makes use of a low rank tool machine to process workpieces that reach high precisin. It meets with lower prices to acquire higher precise tool machines. Using software to compensate is convenient for rebuilding NC tool machines and applying open loop NC system.This paper aims at the condition on the base of the calculator assistance error controlled instrument, carrying on the examination,analysis and control to the process, studying the algorith in error process, setting up the model for analysis to the error, controlling a sport error of the instrument in different controlled way, then carrying on imitating in the process, realizing compensating for error.This task adopts the instrument that realizes the examination,analysis and compensation in the process,to increase the movement accuracy of the numerical control system.The structure is simple and the result is remarkable.It spread general numerical control system . Numerical control process requires lower cost and upper effect,furthermore requires higher and higher precision in the process.Therefore this thesis has important meaning in theory and reality.