机床

Investment Estimation and Source: The total investment is 40.97 million USD, among which 12.05 million USD is self-raised and 28.92 million USD foreign investment is expected in cash.

项目内容：该项目在原有机床市场的基础上，向北延伸至世纪大道，在现有的澎耳湾村西，京九铁路以东，世纪大道两侧。

A,semi-skilled machine operator ,'job

半熟练机床工人、半熟练工人的工作。

Sequential control design method is an advanced regular design for design of PLC ladder diagram .

顺序控制设计法是PLC 梯形图的一种先进规范的方法，将其应用于组合机床控制系统中，使控制软件与工序动作有较好的对应关系，编制和调试效率高。

Our service engineer will instruct your plant service personnel regarding preventive maintenance during installation of the machine.

我们的服务工程师将会在机床安装期间指导用户的维修人员进行预防性维护培训。

Ltd..Jiang～ng 214400.China）Abstract: The servo-system is an important part in the CNC machine.

数控系统是数控机床的重要部分，它随着计算机技术的发展而发展。

So, it is of great significance of improving the performance and reliability of position servo system.

因此，研究与开发高性能的位置伺服系统对虚拟轴机床具有重大意义。

In a numerical control machine tool, servo system is an important part.

在数控机床中，伺服系统是重要组成部分。

The machine operator must be familiar with the main structure of shears, performance and use.

本机床操作人员必须熟悉剪板机主要结构、性能和使用方法。

To match the load characteristic of shoe tree CNC machine tool's transmissionsystem more reasonably ,minimize the moment of inertia and react to the change ofvelocity and acceleration in every axis quickly ,this paper introduces a method ofbuilding the mathematics model based on motor′s load to optimize the transmissionsystems ,distribute the total speed rate and analyse the transmission systems to chosethe best transmissionscheme.

为了实现鞋楦机床数控进给传动系统负载特性的更好匹配，使各轴能够快速地响应速度和加速度的变化，建立了基于电机负载的传动系统数学模型，分析了各个相关动力参数对电机负载的影响，进行了传动系统速比的优化、进行了载荷的匹配、确定了最佳的传动方案和动力参数以实现电机的负载最小。

To improve the manufacturing capability of shoe tree in our country and enhancethe market competition, this paper studys a new method of motion control formachining shoe tree with NC machinetool. This paper discusses a method ofoptimizing the transmission system ,analyzing the stability of Servo System andascertaining every gains of servo system through dynamics emulation, analyzing themotion control of velocity and acceleration, programming to build NC programautomatically and developping a trajectory emulation software to emulate the tool'smachining movement.

为了提高我国鞋楦制造水平，增强产品市场竞争力，本文研究了鞋楦数控加工运动控制方法；对鞋楦机床的数控进给传动系统进行了优化设计和载荷匹配分析；分析了伺服控制系统的稳定性，并通过动态仿真确定伺服系统各环节的增益系数；分析了鞋楦加工运动速度和加速度控制方法；编软件自动生成数控程序；最后开发了鞋楦数控加工仿真软件。

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。