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在锥齿轮刨齿机上批量加工直齿锥齿轮时,粗切工序往往在铣床上进行,以保持刨齿机的切齿精度。为使精刨齿时切削余量均匀,粗铣时大小端齿厚留余量要合适,以便刨出较高精度的工件。粗铣齿时大小端齿厚计算,可使用下述方法。粗铣齿,实际上是将齿形相对于理想齿形作一个定量平移。在大端,aa(图1)为理想齿形,a＇a＇为平移了1/2△Se的齿形。粗铣齿时大端留齿厚余量为△ASe,则在分度圆弦齿高hae上的弦齿厚为(Se+△se)。在小端bb
In the bevel gear planing machine batch processing straight bevel gear, the roughing process is often carried out in the milling machine, in order to maintain the accuracy of gear cutting gear. In order to make the fine sharpening even when the cutting allowance, roughing the size of the tooth thickness left margin to be appropriate in order to dig out a higher precision workpiece. Roughing tooth size tooth thickness calculation, the following methods can be used. Rough milling teeth, in fact, the tooth profile relative to the ideal tooth shape for a quantitative translation. At the big end, aa (Figure 1) is the perfect tooth profile and a’a ’is the profile of the 1 / 2Δ Se profile. Rough tooth when the large teeth left the remaining thickness of the tooth is △ ASe, then in the pitch of the pitch chord hae chord thickness (Se + △ se). At the small end bb