论文部分内容阅读
一、前言主轴部件是机床中最重要的组成部件之一,是体现整台机床技术水平的一个主要标志。对此,机床设计人员无不给以特别的注意。数控车床的技术发展动向是高速化和精密化,主轴的技术指标是其最主要的表征。以量大面广的(?)400mm规格(床身上最大回转直径(?)400mm,轴类工件的最大车削直径约为(?)200mm)的中型数控车床为例,当今国外名牌产品的主轴最高转速一般为5000r/min左右,输出功率高达30kW左右。
I. INTRODUCTION Spindle components are one of the most important components of a machine tool and a major indicator of the technical level of the entire machine tool. In this regard, machine tool designers are all given special attention. CNC lathe technology development trend is speed and precision, the spindle of the technical indicators is the most important characterization. For example, in the case of medium-sized CNC lathes with a large surface area of 400mm (the maximum turning diameter of the bed (?) Of 400mm and the maximum turning diameter of the shaft type workpiece of about 200mm), the highest spindle of today’s foreign brand-name products Speed is generally about 5000r / min, the output power of up to 30kW.