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一、齿轮加工概述齿轮是机械传动中的构件之一。常用齿型有三种:摆线、渐开线、园弧,其中渐开线齿型被广泛应用,它有固定的模数、压力角、齿顶系数。目前世界各国齿制尚未统一,模数由0.1～100毫米,压力角由14.5°～30°之间,20°压力角被广泛应用,齿高系数f=1,短齿系数f=0.8模数。加工齿轮工艺有两类:一是无屑热加工铸、冲、轧齿轮;二是有屑冷加工扦、刨、铣、滚齿,精滚,剃,磨等。文中所言,齿轮切削、滚刀延寿新方法是指有屑冷加工铣齿、滚齿、精滚齿等办法。这种加工可分仿型、展成法二种,后者被广泛应用。滚齿加工齿轮,首先按工件图
First, the gear processing Overview Gear is one of the components in the mechanical transmission. There are three commonly used tooth type: cycloid, involute, Park arc, which involute tooth is widely used, it has a fixed modulus, pressure angle, addendum coefficient. At present, the tooth system of all countries in the world has not been unified, the modulus is from 0.1 to 100 mm, the pressure angle is from 14.5 ° to 30 °, and the pressure angle of 20 ° is widely used. The tooth height coefficient f = 1, the short tooth coefficient f = 0.8 modulus . There are two types of processing gear technology: First, non-chip thermal processing of casting, punching, rolling gear; Second, there are crumbs shaving cold processing, planing, milling, hobbing, finishing, shaving, grinding and so on. The article said that the gear cutting, hob extension life of the new method refers to the chip cold milling, hobbing, precision gear hobbing and other methods. This processing can be divided into imitation, exhibition law two, the latter is widely used. Gear hobbing gear, first press the workpiece map