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本文根据目镜螺纹和量针的接触原理,按照其精确关系给出接触点处的作用直径、螺纹沟槽宽、压力角、针倾斜角、跨针尺寸、最大和最小三针直径、最佳三针直径。为了减少三针尺寸数量,笔者为只用一种尺寸的三针测量所有的目镜螺纹提供了依据。笔者认为目镜螺纹铣削刀具轮廓和磨削砂轮轮廓的精确形状应以螺纹的法向面形为依据。为此,可以用上述参数来评价铣刀和砂轮的外形,从而达到指导加工的目的。
In this paper, according to the contact principle of the eyepiece thread and the measuring needle, the contact diameter, thread groove width, pressure angle, needle inclination angle, cross needle size, the maximum and minimum three needle diameters, the best three Needle diameter. To reduce the number of three-pin sizes, I provided a basis for measuring all eyepiece threads with only one size of three-pin. I believe that the exact shape of the eyepiece thread milling cutter profile and grinding wheel profile should be based on the normal profile of the thread. To this end, you can use the above parameters to evaluate the milling cutter and wheel shape, so as to achieve the purpose of guiding processing.