主轴

this article is research of application of 3d design software ug carries on the components entity design and movement analysis to the boring lathe main axle system.through the method of virtual design and analysis, obtains the design manufacture or the optimized design reference information and data .first complete the boring lathe main axle system's entity components modelling and assembles using the ug formidable entity modelling function and the assembly function,and then establishes the scenario model under the ug organization analysis function module and completes the movement to analyze.obtains on the main axle components the specified point speed, the acceleration and the displacement on a ideal characteristic parameter and output analysis result of obtains office of destination law of motion by the graph form.

本文是应用3维软件ug对镗床主轴系统进行0件实体设计和运动分析的研究。通过虚拟设计的方法进行设计与分析，得到设计制造或者优化设计的参考信息和数据。应用ug强大的实体造型功能和装配功能首先完成镗床主轴系统的实体0件建模和组装，再对装配好的组件在ug机构分析功能模块下建立scenario模型并完成运动分析，得到主轴0件上特定点的速度、加速度和位移等理想的特征参数并以图表的形式输出分析结果得到指定点的运动规律。

The accuracy of spindle assembly will be effected by the element errrors such as coaxiality of holes in box, coaxiality of front and back bearing neck of spindle,radial runout and end face runout of inner and outer rings of bearing and runout of the step of spindle.

箱体孔的同轴度、主轴前后支承轴颈的同轴度、轴承内外圈的径向跳动和端面跳动以及主轴轴肩跳动等元件误差，都会影响主轴组件的精度。

These issues include: the main axis may cause a similar problem with the main axis of the fault has affected the accuracy of bending; workpiece clamping possible problem is that the workpiece center and the main discrepancies, which could lead to instability in rotating workpiece; servo motor failure: the feed system Ball Screw bending and oil do not lead to rust long run can also be caused by poor, such as the same issues.

这些问题包括：主轴主要可能引起类似问题的故障有主轴弯曲影响精度；工件装夹方面可能的问题是工件中心和主轴不一致，由此可能导致工件转动不稳；伺服电机出现故障：进给系统中滚珠丝杠的弯曲和长时间不上油导致生锈运行不畅等也可能引起相同的问题等。

Summary: This system imbeds the multi-axis motion controller PMAC card into PC to constitute open numerical control system applied in horizontal twin spindles double column drill press, using the software of the PMAC card, and the software and the hardware resources of PC, this system complete the numerical control function for the horizontal twin spindles double column drill press, and incarnate the open character of the system adequately.

本系统采用多轴运动控制器PMAC卡嵌入PC机的模式，构成一种专门应用于双主轴龙门钻床的开放式数控系统，利用该卡配置的软件和PC机的软、硬件资源，使系统完成双主轴龙门钻床的数控功能，并充分体现系统的开放性。关键词：数控系统，PMAC，双主轴龙门钻床。

At the end of paper, the motorized spindle has been taken as an experimental object, a set of dynamic measuring system has been built up, and the experiment of dynamic response characteristic is conducted with impulse excitation. The comparison between theoretical simulation and experimental result shows that the rationality and validity of the simulation model are validated. Furthermore, some effective methods have been put forward to improve the dynamic performance of the high-speed motorized spindle.

建立了电主轴的动态测试系统，采用冲击法对电主轴的动态响应特性进行实验研究，将理论仿真结果和实验结果进行了对比分析，结果表明，所建立的仿真模型是合理有效的，并提出了改进高速电主轴动态特性的主要措施。

In this paper,the static and dynamic formulas are derived for the calculation of interference fit and analysis of the stress.

本文根据材料力学和弹性力学理论，对电主轴的配合特性进行了分析，分别推导出电主轴在静态和高速运转条件下，主轴过盈量和应力分布的理论公式。

Spindle is a key unit of the high-speed machine tool,while the interference fit between spindle and motor rotor is one of the most important factors influencing the performance of the spindle unit.

主轴是高速机床的核心部件，机床主轴与电机转子间过盈配合特性是影响主轴性能的重要因素。

Electro-spindle is a critical unit of the high speed machine tool,while the interference fit between the spindle and motor rotor is one of most important factors influencing the performance of the spindle unit.

电主轴是高速机床的核心部件，电机转子与机床主轴间过盈配合量的大小是影响主轴性能的重要因素。

In order to meet the demand of thermal design of modern machine tools, thermal model and thermal characteristics of high-speed spindle system in numerical control precision lathe were studied in detail using finite element method.

进一步计算主轴系统的热变形，并通过对主轴箱体散热筋板的合理布局和优化设计，有效降低了主轴头部的径向跳动和端跳误差，使其小于 2μm，均能满足设计要求。

This paper gives the methods and instances of development of the software for rapid design of high speed machine tool spindle.

在MATLAB平台上基于GUI开发一系列电主轴分析通用软件，用于分析主轴的临界转速、主振型、不平衡响应以及动、静刚度等主轴动特性参数。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。