A Doubtful Case after “Tanggu Pact”: An Analysis of the Relationship between Oriental Travel Agency and Traffic through the Shanhai Pass;
东方旅行社与关内外通车问题——《塘沽协定》善后疑案之一
Hardware expounding of rebuilding common lathe to economical CNC lathe;
普通车床改造成经济型数控车床的硬件阐述
Machining abnormal shape roller with common lathe;
在普通车床上加工异形截面滚子
Takes CA6140 type common lathe as an example,has explained the NC transformation method from machinery and electric two respects in detail.
以CA6140型普通车床为例,从机械和电气2方面详细阐述了数控化改造的方法。
The paper analyese reason of ordinary lathe faults in operation and gives out the elimination methods.
主要介绍了普通车床在运转过程中出现的故障、原因及排除办法。
It is not only economical but also practical way in equipment refitting that ordinary lathe is refited into numberical controlling.
普通车床改装数控车床是设备更新改造中既经济又实用的方法,本文介绍了改装C6136普通车床的几点体会。
Consider the national conditions of our country;the economic digital control lathe is a very important step to develop from ordinary lathe to digital lathe.
结合我国国情,经济型数控车床是我国从普通车床向数控车床发展的极其重要的台阶。
A hyperbolic error often appears in cutting cone with ordinary lathe tool and arris body lathe tool.
根据用普通车刀和棱体成形车刀车削加工圆锥体时将产生双曲线误差的结果,通过计算得出产生双曲线误差的主要因素及使其误差最小时所要注意的事项。
Alteration of control system of plain lathe based on PLC;
基于PLC的普通车床控制系统改造
The key of processing tenuous hole by plain lathe is the design of clamping apparatus.
用普通车床加工细长孔,夹具和钻具的设计是关键。
It introduces the reformation of multidrilling machine from plain lathe.
介绍利用普通车床改装成钻孔多轴钻床,充分利用工厂闲置设备,达到节约成本、提高生产效率的目的。
Numerical Control Reform Technical of Universal Lathe is introduced in this article it is discussed in the paper that reform theory of universal lathe reform of main transmission system, feed transmission system, selection and installa tion of automatic round sword shelf, as well as matters needing attention of reform in detail.
本文介绍了普通车床的数控改造技术，就普通车床的改造原理，主传动系统的改造，进给传动系统的改造，自动回转刀架的选择与安装，以及在改造中应注意的事项等进行了详细的论述，并介绍了机电联调的经验。