查询词典 boring bar

Strain gauges were introduced to measure the deflection errors of the boring bar, Since they can be facilely installed into the boring bar without effect on its size. The measuring principle of the strain gauge was also studied, it indicated that this indirectly measuring method can perform its function well.

这样的模型不仅能够恰当地描述加工过程的动态变化，而且能在当前状态下预测其未来的变化趋势，从而消除误差补偿与在线测量之间的时间滞后，使误差实时在线补偿得以顺利实现。

In order to test the ability of the new type of boring bar, the experiment is done, and the boring bar is specially designed for the production.

对新设计的镗杆进行了生产试验研究。

Aiming at the limitations of the way to increase the static stiffness of the boring bar ,this paper adopts a novel thinking way that aggrandizes the dynamic stiffness of the boring bar to design a bar with a vibration absorption system in the boring bar .

针对一般方法增加深孔加工镗刀刀杆静刚度的局限性，采用了一种新颖的增加刀杆动刚度的思维方法，对内藏式减振刀杆进行了设计。

Comparing with boring bar,numerical results reveal that boring bar with dynamic absorber has the effect of vibration decrease.

通过和普通镗杆对比分析，结果表明动力减振镗杆有效地达到了减振效果。

Processing needs boring bar diameter 160 ~ 250mm floor of CNC boring and milling machine and large-scale horizontal machining center, gantry machining centers, machining accuracy are higher, and at present is still mainly use imported equipment.

加工需要镗杆直径约160～250mm的数控落地铣镗床和大型卧式加工中心、龙门加工中心等，加工精度要求较高，目前主要使用的仍是进口设备。

Modeling and derivation mathematics result of the use of Matlab software Simulation tests of its accuracy and error analysis, to verify the measurement of two boring bar/boring displacement signal the feasibility of the entire system, so as to the smooth development has laid a theoretical foundation.

介绍了两点法测量镗刀位置信号的方案构思，采用最小二乘法对镗杆的圆度误差和被测圆面的偏心量进行了建模计算，并对数学推导的结果利用Matlab软件进行仿真检验，对其精度和误差作了分析，验证了两点法测量镗杆／镗刀位移信号的可行性，从而为整个系统的顺利开发奠定了理论基础。

A sample analysis is given, and the stress distribution within the boring bar and the maximum deflection are obtained under a given cutting condition, at the same time, the comparative analysis with a common type boring bar with the same size is pursued.

给出了分析实例，得到了该种镗刀杆在给定切削条件下的应力分布以及最大挠度并与相同尺寸的普通镗刀杆进行了对比分析。

The outer diameter of the boring bar is strictly limited by the size of the bored hole. In order to solve this problem, the first new structural micro-boring bar system with the function of active error compensation was developed.

在车削、铣削和磨削等外表面加工中，误差补偿用微进给刀架的结构形状、尺寸和体积都没有严格的限制，误差检测传感器和补偿驱动传感器能够方便地安装在微进给刀架内。

This paper introduced the mechanism of vibration in the process of deep hole boring ,developed a dynamic modal of the damping boring bar,optimizing the parameters of the damping system,analyzed the transient dynamic and harmonic response of the damping boring bar.

介绍了深孔镗削加工过程中产生振颤的机理，建立了减振镗杆的动力学模型，在此基础上优化减振系统的参数，并且对减振镗杆进行瞬态动力学和谐响应分析，分析结果表明该减振系统具有良好的减振性能。

The boring bar was designed into a new structure consisting of two coaxial bars. As a result, the micro-boring bar can be made with relatively smaller outer diameter, which was suitable for boring smaller and deeper hole, even the measuring and compensating sensors have been incorporated.

但是，在镗削加工中就遇到了较大困难，因为镗杆的径向尺寸受到被镗孔尺寸的严格限制，用于误差在线检测的传感器和用于误差在线补偿驱动的传感器不能直接安装在镗杆内。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。