The Application Of R Parameter Programming Used For Numerical Control Machining Of Shell Parts Of Shearer

With the rapid development of economy in our country, as the main energy of coal, itsdemand is increasing year by year.But, as one of coal production equipment of coal winningmachine, its production and processing and delivery of contradictions gradually emerges, howto improve the efficiency of coal winning machine production and processing has become thebottleneck of development of coal energy.In order to solve this problem effectively, this paper is to coal winning machine androcker arm shell drawing of shell of these two parts as the research object, combined with theactual production, the use of Siemens840d nc system characteristic of the R parameterprogramming function, in all sorts of different type coal winning machine, local similarity ofdifferent radial shell part and different part drawing of shell of local similarity the Rparameter of nc program of generality, in the program, only need to adjust a few R parameterassignment without the need for a change program can work out the structure of the differentshape, size, avoid the repeated programming, greatly reducing the programming time andprocessing cycle, so as to improve the production efficiency of coal winning machine.The main work is as follows:(1) coal winning machine shell parts structure characteristics and processing technologyresearch.The structure characteristics of the shell parts is the basis of process analysis, and theprocessing technology determines the subsequent R parameter programming rationality andfeasibility.(2) the coal winning machine shell parts R parameter programming research.Parameterprogramming is the flexibility of the manual programming combined with the quickness ofautomatic programming, make the program has the characteristics of high level language.In this paper, using R parameter programming. Write the rocker arm shell and traction boxsimilar parts of the processing program, the program has a strong generality, greatlyimproving the processing efficiency.(3) the coal winning machine shell parts numerical control simulation and sampleprocessing.Using the simulation software for writing shell parts R parameter program fornumerical control simulation, verify the correctness and rationality of the R parameterprogram written by hand and the process was improved and optimized.Using the parametricoptimization of R program on nc machine tool to sample processing.