Research And Development Of The General Post-processing System For NC Machining

Post-processing is the process that transform the CL file(Cutter Location file) produced by pre-processing into NC code that can drive special CNC machine.But because the difference of CNC system, the traditional post-processing havn't met the need of new condition, and the degree of generalization is at low level.In the process of NC maching,operator spend more energy on post-processing, and the result is not good.So,researching a kind of general post-processing is necessary to meet the different needs in actual production.This paper research on the present situation of post-processing,the specific content is as follows:(1)Classify the NC machine by its structure,then analysis the structure and kinematic analysis.Eastablish the kinematic model of NC machine,then analysis and summary their post-processing algorithm according to the principle of graphic transform in CAD system.(2)Research the characteria of NC machine and system in mainstream configurate the general machine files by interactive ways.then output the NC code of mainstream NC machine.(3)Programming by object-oriented software.Then run this program in order to text it whether meet the original design requirement, that is able to output the NC code that can drive the NC machine.Research and develop on the general post-processing system for NC machining,operator only need input the information of nc machine into software,then software can complate the post-processing .So ,it can save many times in actual production.The post-processing become easily.It can improve productivity,promise corporation's benefit.This have very important significance.