对数控车床加工米制梯形螺纹的探索

Exploration of the CNC lathe for Metric Trapezoidal Screw Threads

梯形螺纹的截面尺寸较大,切削抗力也大,G76斜进式切削方法加工,及子程序分层次吃刀进入、左右交替切削方法加工,是避免扎刀现象的有效手段,都可以加工出高精度要求的梯形螺纹。用这两种方法加工梯形螺纹时,需要对螺纹几何参数、刀具几何参数、装卡找正、加工路线设计、编程技巧、三针测量法在线检测等所有要素和细节进行全面分析。在加工过程中,只有精心控制关键要素和每个细节,才能加工出高质量的梯形螺纹。

The trapezoidal thread section dimension is large,the cutting resistance is also large,the G76 oblique cutting processing method,Subroutine program Hierarchical Optimizing,processing method of alternate cutting of left and right,is the effective means to prevent damage the knife phenomenon. It whould be processed out of the trapezoidal thread of high precision requirements. The two methods for processing the trapezoidal thread,the need for thread geometry parameters,geometric parameters of cutting tool,clamping is,manufacturing process design,programming skills,three needle measurement online detection of all elements and details of the comprehensive analysis. In the process of machining,the key elements and details of each carefully controlled,can process the trapezoidal thread with high quality.