论文部分内容阅读
针对目前包络法数控加工螺杆的数控编程系统采用平面包络计算方法存在理论误差这一现状，提出从空间啮合原理出发生成刀具运动轨迹的新方法。在建立刀具和工作模型的基础上，推出计算刀位点的方程，从而得到刀具运动轨迹的计算式。只要给定工作端截面参数方程，就可采用该方法生成刀具运动轨迹。该方法适用于各种截面廓形为一阶连续可微曲线的定螺距圆柱螺旋面螺杆。对于截面廓形由多段曲线组合成的螺杆，可以分段处理。
Aiming at the present situation that there is a theoretical error in the plane envelope calculation method for the NC programming system of the NC process screw of the envelope method at present, a new method of generating the tool movement trajectory from the space engagement principle is proposed. Based on the establishment of the tool and the working model, the equation for calculating the tool point is deduced to get the calculation formula of the tool path. As long as the working end of the cross-section parameter equation, you can use this method to generate tool motion trajectory. The method is suitable for a variety of cross-sectional profiles for the first order continuously differentiable curve of the fixed pitch cylindrical helical screw. For the cross-sectional profile by the multi-curve combination of the screw, can be processed in stages.