SU1609563A1 - Screw tap for cutting precision threads - Google Patents

Screw tap for cutting precision threads Download PDF

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Publication number
SU1609563A1
SU1609563A1 SU884486441A SU4486441A SU1609563A1 SU 1609563 A1 SU1609563 A1 SU 1609563A1 SU 884486441 A SU884486441 A SU 884486441A SU 4486441 A SU4486441 A SU 4486441A SU 1609563 A1 SU1609563 A1 SU 1609563A1
Authority
SU
USSR - Soviet Union
Prior art keywords
feathers
cutting
feather
teeth
tap
Prior art date
Application number
SU884486441A
Other languages
Russian (ru)
Inventor
Расул Вагидович Гусейнов
Original Assignee
Предприятие П/Я В-2700
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я В-2700 filed Critical Предприятие П/Я В-2700
Priority to SU884486441A priority Critical patent/SU1609563A1/en
Application granted granted Critical
Publication of SU1609563A1 publication Critical patent/SU1609563A1/en

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Abstract

Изобретение относитс  к металлообработке, а именно к нарезанию резьбы метчиками. Целью изобретени   вл етс  повышение точности нарезани  резьбы за счет равномерного распределени  нагрузки на все зубь  режущих перьев. Метчик состоит из заборной части, калибрующей части, хвостовика. Режущие перь  первого пера I затылованы с задним улом α. Ведущие зубь  второго пера II имеют бочкообразные зубь  и занижены по наружному диаметру. Режущие зубь  третьего пера III занижены по наружному диаметру на величину (K=P(N-1)/Z(Z+1)].SINΑ, где P - шаг резьбыThe invention relates to metal working, namely threading with taps. The aim of the invention is to improve the accuracy of threading by uniformly distributing the load on all the teeth of the cutting feathers. The tap consists of the intake part, the calibrating part, the shank. The cutting feathers of the first feather I are covered with a rear hub α. The leading teeth of the second feather II have barrel-shaped teeth and are underestimated along the outer diameter. The cutting teeth of the third feather III are understated by the outer diameter by the value (K = P (N-1) / Z (Z + 1)] . SINΑ, where P is the thread pitch

N - пор дковый номер пераN is the feather serial number

Z - число перьев метчикаZ - the number of feathers tap

ϕ - угол заборного конуса. 5 ил.ϕ is the angle of the intake cone. 5 il.

Description

Фиг.11

IfiepoIfiepo

ЛпероLpero

5858

7777

МпероMpero

Фиг. 5FIG. five

ЖF

мm

ЖF

Claims (1)

Формула изобретенияClaim Метчик Для нарезания точных резьб с нечетным числом перьев, ведущие перья которого чередуются с режущими перьями и имеют бочкообразную форму зубьев, отличающийся тем, что, с целью повышения точности, зубья режущих перьев, кроме первого. затылованы с занижением по наружному диаметру на величину К, равную K = z(z + i1(s'ny· где Р - шаг резьбы;Tap For cutting precise threads with an odd number of feathers, the leading feathers of which alternate with cutting feathers and have a barrel-shaped tooth shape, characterized in that, in order to increase accuracy, the teeth of the cutting feathers, except the first. backed up with an understatement in outer diameter by K equal to K = z (z + i 1 ( s ' ny · where P is the thread pitch; η - порядковый номер пера; Ζ - число перьев метчика; φ - угол заборного конуса.η - serial number of the pen; Ζ is the number of tap feathers; φ is the angle of the intake cone. Л пероL feather ШпероSpero XгXg Фиг.ЗFig.Z Фиг. 5FIG. 5
SU884486441A 1988-09-23 1988-09-23 Screw tap for cutting precision threads SU1609563A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884486441A SU1609563A1 (en) 1988-09-23 1988-09-23 Screw tap for cutting precision threads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884486441A SU1609563A1 (en) 1988-09-23 1988-09-23 Screw tap for cutting precision threads

Publications (1)

Publication Number Publication Date
SU1609563A1 true SU1609563A1 (en) 1990-11-30

Family

ID=21400899

Family Applications (1)

Application Number Title Priority Date Filing Date
SU884486441A SU1609563A1 (en) 1988-09-23 1988-09-23 Screw tap for cutting precision threads

Country Status (1)

Country Link
SU (1) SU1609563A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 418292. кл. В 23 G 5/06, 1974. *

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