CAJ | 학술논문

基于Cortex-A8和Android软硬件嵌入式数控平台，提出一种集成到中低端数控车床加工系统的仿真模块设计方法。在三角网格离散法建模的基础上，提出利用顶点平移算法计算三角片的顶点坐标值，大大减少复杂的三角函数计算量，并且基于强大的嵌入式三维图形OpenGL-ES2．0接口绘制毛坯；基于NC代码特征解释译码，有效提取出刀具驱动数据信息；在刀具切削过程中，对扩展DDA圆弧插补算法进行改进，提高了切削精度。动态仿真测试表明：基于改进的算法进行加工仿真，3D效果逼真，插补点径向误差减小30％左右，加工仿真精度高。
기우Cortex-A8화Android연경건감입식수공평태，제출일충집성도중저단수공차상가공계통적방진모괴설계방법。재삼각망격리산법건모적기출상，제출이용정점평이산법계산삼각편적정점좌표치，대대감소복잡적삼각함수계산량，병차기우강대적감입식삼유도형OpenGL-ES2．0접구회제모배；기우NC대마특정해석역마，유효제취출도구구동수거신식；재도구절삭과정중，대확전DDA원호삽보산법진행개진，제고료절삭정도。동태방진측시표명：기우개진적산법진행가공방진，3D효과핍진，삽보점경향오차감소30％좌우，가공방진정도고。
We propose a design solution of simulation module integrated to the low and medium-end CNC lathe processing system based on Cortex-A8 and Android embedded hardware and software NC platform.On the basis of modelling with triangular mesh discretisation method, we propose to use vertex translation algorithm to calculate the vertex coordinates of triangle pieces, which greatly reduces the computation amount of complex trigonometric function, and to draw a blank based on powerful embedded 3D graphics OpenGL-ES2.0 interface.We inter-pret the decoding based on the feature of NC code, and effectively extract the driving data information of tools.In tool cutting process, we im-prove the extended DDA circular interpolation algorithm and improve cutting accuracy as well.Dynamic simulation test results show that to simulate the processing based on improved algorithm has realistic 3D effect, the radial error of interpolation point reduces about 30%, and the accuracy of processing simulation is also high.