Y3150E型滚齿机总体及刀架结构及部件设计

摘 要

滚齿机是齿轮滚刀加工齿轮的专用机床，在齿轮加工中应用最广泛。在滚齿机上可切削直齿、斜齿圆柱齿轮。这种机床使用特制的滚刀时也能加工涡轮、花键和链轮等各种特殊齿形的工件。

本滚齿机由床身、立柱、刀架及滑板、工作台组成。滚刀箱固定在刀架滑板上，滚刀心轴插入滚刀主轴并用拉紧螺栓固定在主轴上。为了保证主轴与前轴承的适当间隙，前轴承是做成外锥并开口。调整轴承上的两个螺母，可以使前轴承做轴向移动，使前轴承孔收缩便可消除主轴和轴承间过大的间隙。

我的课题主要内容是滚齿机刀架系统设计：以8mm最大加工模数为基本参数，对滚齿机刀架进行设计，拟定总体方案，进行结构设计，对主要的零件进行设计计算和强度校核。使设计的刀架可用于齿轮加工，最后用CAD软件生成图纸。

关键词：滚齿机、刀架、齿轮

Abstract

The gear hobbing machine is special purpose machine tools cutting gear with gear hob and it is widely used.It can be used for machining spur cylindrical gears,helical cylindrical gears.With special hobbing cutter,it could machine worm gears multiple spline and sprocket wheels whose tooth profile are special.

This gear hobbing machine is composed of bed,column,cutter frame,slider,and machine table.Rob cutter frame is fixed on the slide of cutter rack, the hob shaft is inserted into hob spindle and fixed with the draw-in bolt on the main axle. In order to guarantee the spindle and the suitable front bearing gap, the front bearing has the outer cone and the aperture. Adjusting on the bearing two nuts, it causes bearing movement along the front axle when motion and causes contraction of the front bearing hole then to be possible to eliminate the gap between the main axle and the bearing.

The topic main content of topic is hob-cutter frame design as well as the spindle assembly design:8mm maximum machining modulus of the basic parameters,hobbing tool holder to design,develop the overall program,structural design,the main parts of the design calculation and strength check.Make the design of the turret and the table can be used for gear cutting,finally with CAD software to generate drawings.

Key words :gear hobbing machine,cutter frame, gear