Helical Gears Nc Slotting Processing Theory Methods And Research

Gear is the base transmission component of machine, whose quality work on the whole machine' ability and longevity. Because it's shape is very complex and gear's making is difficult, so the gear's making lever reflect the country's mechanic technical level in great degree. With the development of machine's high speed, over loading, lower noise, the bevel wheel is applied more and more at large. But shaping as one of the bevel wheel' cutting technique has not realized the Computerized Number Control completely , it still must use the helix track to realize the spire move. For the helix track's precision is very high and it's making technic is complex, so it is very diffcult to manufacture the helix track and it's cost is high, more over gear'spire angle must as the same as the helix track' angle, which will restrict the design parameters of bevel wheel. People of manufature group have waked up that using CNC and it's software is the effective means to change the shaping technique behindhand these days.So using CNC substitute helix track and realizing bevel wheel's shaping CNC have important realism meaning.The paper just basing on this put forward:1)No differential way to shape bevel wheel;2)By Electronic Gear Box to ensure the strict proportion of the tool shaft and the workpiece.The paper's mostly content:1) Basing on generating principle, deduced involute outline equation and educe gear root curvilinear's excess equation by coordinate transposition.2) Basing on bevel wheel's forming principle discussed the principle of bevel wheel'shaping.3) Deduced the proportion of the tool shift and the workpiece when shaping bevel wheel by no differential way;Put forward using Electronic Gear Box to ensure it.4) Introduced the CNC system's sofetware , hardware and their working principle,and analysed the act controling.