中凸变椭圆活塞 Middle-convex and varying ellipse piston
In this paper, a new kind of CNC system to machine shaft with non-circular cross-section is proposed. Pistons with convex contour and vari-elliptical cross-section are most representative examples of non-circular shaft workpieces.
本论文的提出了一种新型的非圆数控加工系统，用于横截面为非圆形状的轴类零件加工，内燃机的活塞裙部的中凸变椭圆型面是其最典型和常见的应用实例。
参考来源 - 一种新型的非圆轴数控加工系统的研究与开发·2,447,543篇论文数据，部分数据来源于NoteExpress
当今对中凸变椭圆活塞进行加工主要是使用添加直线电机为U轴的车床进行加工。
A lathe with a line motor as U axis is usually used to cut the piston.
为提高工作性能，活塞裙部设计成中凸变椭圆型，立体靠模仿形车削是常用的加工方法。
To improve performs of engine, the piston skirt curve is designed to be middle convex and varied elliptic pattern, copying manufacturing with master piston is commonly used.
分析了以曲柄滑块机构和凸轮机构为主动的二自由度机构成型活塞中凸变椭圆的工作原理。
The working principle was analyzed for the middle-bulged varying ellipse shape of the two-freedom mechanism with the crank sliding-block mechanism and the cam mechanism.
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