机械5

齿轮是现代机械传动的重要组成部分，许多领域都在广泛的运用齿轮传动，因此对齿轮的精度和加工效率要求也越来越高。就目前而言，很多要求高精度的齿轮都是磨削加工出来的，然而对于一些大型的工件，不能使用磨削，因此为了改善这样的情况，就采用刮削代替磨削，这样既满足了精度要求又提高了加工效率。本设计是对滚刀的蜗杆造型、齿形、工作原理进行了分析，并设计了齿形误差检测程序。设计的基本想法是：在刀体上开出容屑槽，把刀体和刀片进行热处理，之后把刀片沿着半径方向压入刀体槽内，再之后磨两头的轴台，把加热之后的端盖套上去，冷却之后紧紧压住刀片，装配完成后就精加工齿面。本设计用的是硬质合金刀片，能实现以刮代磨，节省工时，大大提高加工效率。 关键词：滚刀、蜗杆造型、齿形设计、程序检测 Co
nte
nts of the abstract. Times New Roma
n. Gear is a
n importa
nt part of moder
n mecha
nical tra
nsmissio
n, ma
ny areas are widely used i
n gear tra
nsmissio
n, so the accuracy of this rou
nd a
nd processi
ng efficie
ncy requireme
nts are getti
ng higher a
nd higher. For
now, ma
ny require high precisio
n gears are gri
ndi
ng out, but for some large parts, ca
n
not use gri
ndi
ng, so i
n order to improve this situatio
n, the use of scrapi
ng i
nstead of gri
ndi
ng, the use of fabricated structure, This is to meet the accuracy requireme
nts a
nd improve the processi
ng efficie
ncy. The desig
n of the hob is the hor
n shape, tooth shape, the worki
ng pri
nciple of the a
nalysis, a
nd the desig
n of the tooth error detectio
n program. The basic idea of the desig
n is: the chip body out of the chip flute, the blade a
nd the blade heat treatme
nt, the
n the blade alo
ng the radial directio
n i
nto the body groove, a
nd the
n after gri
ndi
ng two e
nds of the shaft, the heati
ng After the e
nd cap sets up, after cooli
ng tightly pressed the blade, the assembly is fi
nished after fi
nishi
ng the tooth surface. The desig
n is a carbide blade, to achieve scrapi
ng gri
ndi
ng, savi
ng ma
n-hours, greatly improvi
ng the processi
ng efficie
ncy. Key words:Gear hob, worm shape, tooth shape desig
n, program test 摘要I ABSTRACT II 1绪论1 1.1选题背景及目的1 1.2滚刀技术的发展1 1.3课题研究方法1 1.4课题研究内容......................................................错误！未定义书签。 2齿轮加工概述3 2.1齿轮加工方法3 2.2齿轮滚刀优缺点3 2.3刮削工艺特点4 2.4硬齿面刮削的应用分析5 3装配式硬齿面刮削齿轮滚刀参数的确定与齿形设计6 3.1前角的选择6 3.2基本蜗杆的选择和造型6 3.3我设计的滚刀齿形设计9 4侧铲面的形成17 5滚刀结构设计特点及计算20 5.3参数选择19 5.3齿形部分设计计算19 5.3刀体设计计算21 6误差24 6.1螺旋面参数误差24 6.2基准面参数误差24 6.2齿厚偏差导致的误差24 7总结25 参考文献26 附录1：外文翻译28 附录2：外文原文35 附录2：齿形坐标值43 致谢44