Cutting parameters
发布时间：2015-05-06
The cutting force of hard skiving has ups and downs, intermittent and strong impact, therefore,must improve the torsional rigidity of transmission chain, reduce the transmission gap, so thehobbing machine needs to have sufficient thermodynamic properties of geometric stiffness,accuracy and good. And there are two more stringent requirements: table driven rotary indexing worm gear gap should be as small as possible. The gap has great influence on the vibration and the tooth shape error, generally take on hobbing machine installed indexing worm gear pre tightening device to reduce or eliminate the gap vibration and tooth profile error. Hobbing machine is a new generation often for the design of double worm gear mechanism without backlash; thecutter rod is rigid, swing to small, should wear. The axial and radial jumpiness of the cutter rodshould be strictly controlled within 0.01mm, the axial runout should be as small as possible. The main thrust shaft takes wear, small gap. Only the hard skiving gear parts processing, and tooth topand tooth root cutting were wrong. In order to avoid scraping the top edge of the hard alloy hob incutting (Yi Bengren), before quenching roughing gear should be cut to the whole tooth depth oramount of undercut. Therefore, roughing hob used should be used for tooth correction special,such as the hob hob with convex angle, addendum to (1.3 ~ 1.4) M. The best tool provided bysuppliers and the hard alloy hob matching scraping hob.
