对变螺距螺纹的成形原理进行了分析。
A theoretical analysis of the varying pitch screw in mathematics, physics and shaping principle was presented.
数控车；变螺距螺杆；NC程序；起刀点；图解法；
CNC lathe; variable pitch screw; NC Program; on the cutting point; graphic method;
分析结果可供变螺距螺旋桨的新型结构设计和流体动力特性研究参考。
These analysis results are references for both new type of structure design and the research on characters of fluid dynamics of propellor.
该程序一经调用，只要给出几个相关的参数，即可绘出变螺距螺旋面展开图。
Once the program is loaded, only a few parameters are given, the development drawings of variable pitch helical blade will be obtained.
采用适当的变螺距工艺可使扣牙力分布得以改善，从而提高套管柱承载能力。
Proper variate thread pitch techniques can be adopted to improve the distributions of detention forces, so as to strengthen casing strings'loadsupporting capability.
对于只具备普通螺纹切削功能的数控车床，一般来说不能加工变螺距的螺纹。
It is difficult to machine the variable pitch of screw part on the CMC lathe without variable pitch cutting faction.
文章基于3.5轴数控铣床，利用螺旋线展开的平面曲线编程，分层切削，加工出变螺距螺纹；
Programming by the plane curve unwrapped from the helix curve and cutting layer by layer, we created the variable pitch screw on the 3.5 axis NC milling.
为了获得良好的抗汽蚀性能，对磁力泵叶轮采取低汽蚀余量设计措施，同时配置变螺距诱导轮。
In order to get a good performance on preventing cavitation, the impeller of magnetic driving pump is designed in low-NPSHR method and variable-pitch inducer is installed.
实验结果证明：用最优化方法设计的变螺距线圈，使电感传感器的有效线性输出范围得到了显著的提高。
The results of experiments have shown that the available linear range of output voltage of the optimized inductive transducer with solenoid pitch varying ino.
实验结果证明：用最优化方法设计的变螺距线圈，使电感传感器的有效线性输出范围得到了显著的提高。
The results of experiments have shown that the available linear range of output voltage of the optimized inductive transducer with solenoid pitch varying in optimum rule is highly lengthened.
用附加有该变螺距螺纹加工装置的普通车床，可以十分方便地加工出符合质量技术要求的变螺距螺纹螺杆。
The reformed lathe can machine the varying pitch screw bolt according to the require of quality and technology.
鉴于此，笔者试图设计泵阀的变螺距弹簧，以消除阀盘的纵向振谐窜动和径向失稳漂移，提高泵阀工作寿命。
In view of this, a variable pitch valve spring is designed to eliminate the axial shifting and radial drifting of the valve disk and improve the service life of the valve.
本文介绍了一种变螺距螺杆的设计方法，该方法采用多项式，并提出了设计所需的边界条件和这种方法的使用范围。
This paper introduces a design method of variable pitch screw, This methed make use of multinomial, bring out the boundary conditions which the design need and the operating range of the methed.
文中分析了异型截面供送变螺距螺杆的结构特点和工作原理，设计了其加工工艺，提出了一套加工该螺杆的独特的数控编程方法。
The paper analyses the structural characteristic and work principle of screw with variable pitch, designed machining technics, put forward a particular method of nc programming.
文中分析了异型截面供送变螺距螺杆的结构特点和工作原理，设计了其加工工艺，提出了一套加工该螺杆的独特的数控编程方法。
The paper analyses the structural characteristic and work principle of screw with variable pitch, designed machining technics, put forward a particular method of nc programming.
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