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【问】今年第一期《机械工人》冷加工技术资料发表了“等螺旋角锥铣刀”一文,我们看后觉得很为实用,但对其传动原理尚欠清楚,希能加以介绍?(上海杨健)【答】对这个问题要分四部分来谈:一、等螺旋角锥度铣、铰刀的螺旋线及其形成原理设一条垂直于OY轴的直线O′B′与锥圆相交于A点,并以螺旋角ω围绕OY轴沿锥圆表面旋转上升时的运动轨迹即为锥体等螺旋角的曲线。A点以等螺旋角ω沿锥圆表面上升有两种情况:(1) A点作匀速旋转,加速上升。因为A点在小头旋转一周上升的距离(即导程)小于在大头旋转一周的距离,所以,随着锥圆直径的逐渐增加,
[Q] The first issue of this year’s “Machinist” cold processing technical information published a “spiral spiral cone cutter,” a text, we think it is very useful, but its transmission principle is not clear, Hsien can be introduced? (Shanghai Yang Jian) [Answer] This question should be divided into four parts to talk about: First, such as helical angle taper milling, reamer helix and its formation principle Set a straight line perpendicular to the OY axis O’B ’ A point, and the helix angle ω around the OY axis along the cone surface when the rotation is the movement of the cone trajectory curve is the helix angle. A point with equal helix angle ω along the cone surface rise in two cases: (1) A point for uniform rotation, accelerate the rise. Because A point in the rotation of the small head a week rise (ie, lead) is less than a week in the big head rotation distance, so, with the cone diameter gradually increased,