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前言本文论证了利用剃齿刀负修形,在解决剃齿中凹和鼓形齿的加工中,剃齿相对滑移速度对齿形精度的影响,以及剃齿受力,剃齿刀刀齿的弹性变形和齿轮轮齿的弹性变形是产生轮齿中凹的重要原因,通过分析计算为设计合理的修形曲线提供了理论基础。同时在Y7125磨齿机上,为了实现剃齿刀较复杂的修形曲线的刃磨,采用了新的修形样板制作方法,通过试验取得了艮好的效果,提高了齿轮的加工精度。用标准剃齿刀剃出的齿轮,其齿形误差的特点是,齿形中凹,齿顶和齿根的齿形误差为负。形成双波峰,但靠近齿顶的波峰一般高于靠近齿根的波峰(图7),根据剃齿齿形误差的特点,进行以下误差分析。一、剃齿齿面相对滑移速度,对齿形精度的影响剃齿时剃齿刀为主动,齿轮从动,剃齿刀直径大干齿轮直径,剃齿刀齿廓与齿轮的齿面在剃齿时产生滚动与滑动相混合的运动,在节点处为纯滚动,隔开节点处越远,相对滑动速
Preface This paper demonstrates the use of shaving cutter negative trimming, shaving tooth in the solution to deal with the concave and the drum gear tooth relative sliding speed on the tooth profile accuracy, as well as shaving force, shaving cutter teeth The elastic deformation of gear teeth and the gear tooth deformation are the important reasons that cause the gear teeth to be concave. This provides a theoretical basis for the design of a proper shape modification curve through the analysis and calculation. At the same time, on the Y7125 gear grinding machine, in order to realize the sharpening of the shaving cutter with more complex shape curves, a new method of making the template is adopted, and the good effect is obtained through the experiment, which improves the machining precision of the gear. Gears shaved with a standard shaving cutter have a tooth profile error that is concave in the profile and negative in tooth profile for the tip and root. The formation of two peaks, but the peak near the tooth tip is generally higher than the peak near the root (Figure 7), according to the characteristics of the tooth shaving error, the following error analysis. First, the relative sliding speed of the shaving tooth surface, the impact on the accuracy of tooth Shaving tooth shaving knife initiative, driven gear, gear shaving the diameter of a large diameter, tooth sharpening tooth profile and gear tooth surface in the When shaving, there is a mixture of rolling and sliding motions, pure rolling at nodes, farther away from nodes, relative sliding speed