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一、简易数控车床进行螺纹加工的原理普通车床能够实现各种螺纹导程、不同种类螺纹加工是由于它能满足以下两个条件: 1.进刀速度和主轴转速之间保持一个严格的比例关系。即主轴转一转,刀架移动一个被加工螺纹的导程(对于单头螺纹就是一个螺距)。这在普通车床上是通过选用不同传动比的齿轮副使传动得以实现。 2.螺纹加工时,工件螺旋表面是通过多次重复造刀,循环加工实现的,而每次循环加工的初始位置,即主轴与刀架相对运动轨迹必须重合,否则,加
First, the simple CNC lathe principle of thread machining ordinary lathe can achieve a variety of thread leads, different types of thread processing is due to it to meet the following two conditions: 1. Feed rate and the spindle speed to maintain a strict relationship between the ratio . That is, the spindle rotates one turn, and the carriage moves the lead of a machined thread (one pitch for a single thread). This is in the ordinary lathe by using different gear ratio of the gear pair to enable transmission. 2. Thread processing, the workpiece spiral surface is repeated through multiple knife, circular processing to achieve, and the initial position of each cycle, that is, the spindle and the relative motion trajectory must be coincidence, or plus