机床

Parallel machine tool ; Direct displacement analysis ; Groebner base ; Manipulability ; Computer symbolic manipulating technique

并联机床；位置分析； Groebner基；可操作性；计算机符号处理技术

It is formed from controllable slide block mounted in guideway, length-fixed drive rod capable of driving slide block and making it move in guideway, controllable telescopic shaft and mobile and turnable working table consisting of moving platform for mounting cutting tool and working table for mounting workpiece, and utilizes the drive rod, controllable telescopic shaft, moving platform, slide block and guideway to form the invented redundant drive plane parallel closed link mechanism with several functions of cutting, grinding, load-shifting and assembling, etc.

由安装在导轨中的可控滑块、驱动滑块在导轨中运动的定长驱动杆、可控的伸缩轴及安装切削刀具的动平台、安装工件的工作台构成的可移动和转动的工作台组成。并由驱动杆、可控伸缩轴、动平台、滑块、导轨构成冗余驱动平面并联闭链结构。该装置既具有切削、磨削、移载、装配等多种功能，又具有简单结构、大作业空间和刀具实现姿态能力，以及优先的加工方向等优点的并联机床新结构。

In order to implement NC ultrasonic grinding of parallel ruled surface ,calculation of cutter location and post processing method were introduced.

介绍了新研制的数控超声磨削成形加工机床的各运动轴，以及实现平行直纹面数控超声磨削加工的刀位计算和后置处理方法。

This article introduces the design and development of command parser for machine tool controller.

本文介绍了一种机床控制器命令解释程序的设计与实现。

In introduction and in absorption international vanguard technology foundation independent development product PEIAN6000 series product, The product widely applies in the steel and iron, the oil field, the petrification, the spinning and weaving, the building, the revertex, the ceramics, the papermaking, the hardware, the engine bed, mining, printing, forging and so on in each kind of industrial equipment, Is the enterprise most ideal energy conservation, the transmission, the control application product.

在引进和吸收国际先进技术的基础上自主开发生产PEIAN6000系列产品，产品广泛应用于钢铁、油田、石化、化工、纺织、建筑、塑胶、陶瓷、造纸、五金、机床、采矿、印刷、锻造等各类产业设备中，是企业最理想的节能、传动、控制应用产品。

The relations between the phase shift angle ψ between two successive cuts and cutting stability are discussed in detail.

本文深入研究了机床主轴前后两转切削振动间相位差ψ与切削稳定性的关系。

Secondly, to increase the replication accuracy of every servo axis and to combine with the feature that the machining contour is known in advance, a limited bandwidth zero phase lag desired model is presented in this dissertation.

本文首先综述了国内外超精密机床及其各种伺服控制策略的发展概况，并对数控系统的发展和研究现状进行了比较全面的总结。

Line cutting of processing, the role of cutting fluid water, affecting the efficiency of machining, workpiece quality and genuine piece rate requirements.

在线切割的加工中，切削液用水的作用，影响着机床加工的效率、工件质量及工件正品率的要求。

At the same time, the essential motion in the gear grinding process and the structure of gear grinding CNC has been discussed. This method could not only applied to outer noncircular gear with all convex pitch line but also applied to outer noncircular gear with partial concave pitch line and inner noncircular gear.

把成形砂轮看作插齿刀的一个刀齿，就可以利用非圆齿轮插齿加工过程中齿廓成形原理，推导出非圆齿轮齿廓的成形砂轮展成磨削方法，同时讨论了按这一原理磨齿时需要的运动及数控机床结构。

For drill point with planar flanks, using toolroom microscope, we measure the angles relevant to unit vector on the flanks and transform these data into design parameters.

虽然用户可以通过反复实验、摸索，找到适当的设计参数，以便刃磨时CNC编程和机床调整，但这不实用，而且是缺乏普遍意义的方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。