SU1558585A1 - Method of producing a set of gear-cutting tool for working pair of bevel wheels with round teeth - Google Patents

Abstract

The invention relates to mechanical engineering, in particular, to the technology of manufacturing a cutting tool. The purpose of the invention is to expand the technological capabilities of the tool by producing a tool for double-sided method of cutting bevel wheels. A gear head for wheel machining is manufactured with a set of W ₂ cutters, and a gear wheel head for machining a gear wheel with a set of W ₁ cutters. The side profiling edges of the cutters of each head are made with a front cutting angle λ, the values of which on the cutters that process the mating sides of the teeth of the wheel and gears, are related by a certain ratio. This makes it possible to expand the technological capabilities of the tool and apply it in a double-sided method of cutting bevel wheels. 6 Il.

Description

The invention relates to the field of mechanical engineering, in particular, to the technology of manufacturing a cutting tool.

The purpose of the invention is to expand the technological capabilities of the tool by producing a tool for double-sided method of cutting bevel wheels.

Fig. 1 shows a diagram of installation of cutters in a gear-cutting head for machining a wheel, in Fig. 2 the same, for machining gears in Fig. 3, a cutter 1, in Fig. 4 a cutter, side view; figure 5 is the same, front view, figure 6 is the same, top view.

The method is carried out as follows.

A gear head for wheel machining is manufactured with a W.J cutter wedge, and a gear wheel is a gear wheel for machining with a wrench cutter W,. The incisors with side profiling edges 1 and 2 are installed in the slots of the head body, which are inclined at an angle y. The side profiling edges 1 and 2 of the cutters are made with front cutting angles h, the values of which on the cutters machining the mating sides of the teeth of the wheel and gear, are determined from the ratio

s

W

SP

00

OF

00 ЈЈ

BUT; arctg

GarctgRrcosV.tg (HЈlS5j-tgAK-j

. ::::; ± 77- r-- J - J

It is known that

R4-ЈtSjr, COS 4oG

Ј.: ЈЈ§Ј

Cos

- where index 1 refers to a gear, index 2 refers to a wheel; R is the generating radius of the instrument; v is the angle of the main

edges

d is the angle of the tool profile, from where

fa l BD1Ј2Ј- iS Ј tg T.Rj.

since the lateral profiling edges are made with front cutting angles, they deviate by an angle (Fig. 4). therefore

T

 arctg

- rctgR, - (SSSteb tg i

o - "". - ...

  8 URl, J

Since the tooth side of the gear is in contact in engagement with

D. arctg

2ЈЈЈl ilЈl i

r arctgRi -cos rf, tg (y - SЈЈЈ8bllt8il

h t8b ---- Z ---- 5 Jeor T J

57

where j

the index related to the para- 45 radius, the value of which is determined by the instrument to determine from the condition of obtaining the contact zone of one of the sides of the teeth of the wheel; i - the same to the conjugate side

gear teeth.

Claims (1)

The invention The method of manufacturing a set of gear-cutting tools for machining a pair of bevel gears with circular teeth, comprising a double-sided head for machining a wheel and a tool for machining a gear, while the hyperboloid surface of each cutting element is made with where the slope angle of the housing groove. Consequently tR () i- siLilill JbSjfii  "V R2.CosV {/ (one) From figure 4 , AB do arctg | -, Sun L From FIG. 6 AB b-tgA, therefore Lou arctg -. (2) zo Substituting (2) in (1) to transforming, get the concave side of the tooth wheel, chickpea - with a convex, then 2ЈЈЈl ilЈl i rf, tg (y - SЈЈЈ8bllt8il  J 0 five nor the profiles of the teeth of a conical pair, and the profiling straight-line cutting edges of each cutting element are inclined relative to their axial planes, characterized in that, in order to expand the technological capabilities, the gear tool is designed as a double-sided head; the linear edges of the heads of the cutting elements are inclined at different angles determined from the ratio 1 Phie.1 FIG. FI.5