SU969393A1

SU969393A1 - Head for rolling thread on taps

Info

Publication number: SU969393A1
Application number: SU813278876A
Authority: SU
Inventors: Борис Теодорович Жакич; Александр Сергеевич Ющенко
Original assignee: Предприятие П/Я А-3165
Priority date: 1981-04-23
Filing date: 1981-04-23
Publication date: 1982-10-30

Description

Изобретение относитс к обработке металлов давлением и может быть исгпользовано в инструментальном производстве .The invention relates to the processing of metals by pressure and can be used in tool manufacturing.

Известна реэьбонакатна плашка, содержаща резьбонакатные ролики, установленные в корпусе на эксцентриковых ос х, и механизм регулировки межосевого рассто ни резьбонакатныхA known re-rolling plate containing thread rolling rollers mounted in a housing on eccentric axles and a mechanism for adjusting the center distance of thread rolling rollers.

роликов Tl.clips Tl.

Недостаток указанной.плашки - невозможность накатывани ею затылованного резьбового профил на бесстружечных метчиках, -так как межосевое рассто ние роликой неизменно в процессе накатывани .The disadvantage of this plate is the impossibility of its rolling up the threaded threaded profile on the brushless taps, since the center distance of the roller is constant in the rolling process.

Наиболее близкой к предлагаемой вл етс резьбонакатна головка, содержаща резьбонакатные ролики, установленные на ос х в пружин щих элементах корпуса 2.Closest to the present invention is a thread rolling head comprising thread rolling rollers mounted on axes in the spring elements of the housing 2.

Недостатком известной головки вл етс низка точность формируемой резьбы. Перемещение роликов в радиальном направлении ничем не ограничено к размеры получаемой резьбы завис т от диаметра заготовки, которую поэтому следует изготавливать с большой точностью.A disadvantage of the known head is the low accuracy of the thread formed. The movement of the rollers in the radial direction is not limited by anything to the dimensions of the obtained thread depending on the diameter of the workpiece, which therefore should be made with great precision.

Цель изобретени - повышение точности формируемой резьбы.The purpose of the invention is to improve the accuracy of the formed thread.

Поставленна цель достигаетс тем, что головка дл накатывани резьбы на метчиках, содержаща резьбонакатс ные ролики, установленные на ос х в пружин щих элементах корпуса, снабжена установленной на корпусе регулировочной втулкой, на внутренней поверхности которой выполнены выступы, имеющие возможность взаимодействи с пру10 жин щими элементами корпуса.The goal is achieved by the fact that the head for rolling threads on taps, containing thread-rolling rollers mounted on the axes in the spring elements of the housing, is provided with an adjusting sleeve mounted on the housing, on the inner surface of which protrusions are made that have the possibility of interaction with the spring elements enclosures.

На фиг. 1 представлена головка, общий вид; на фиг. 2 - вид па стрел:ке А на фиг. 1.FIG. 1 shows the head, a general view; in fig. 2 is a view of the arrows: ke A in FIG. one.

Головка дл накатывани резьбы Threading head

15 на метчиках содержит резьбонакатные ролики 1, установленные на ос х 2 в пружин щих элементах 3 корпуса 4. Йа корпусе размещена также регулиро-. вочна втулка 5, на внутренней по20 верхности которой выполнены выступы 6. Положение втулки 5 относительно корпуса 4 зафиксировано винтом 7. Работа головки заключаетс в сле7с дующем.15 on the taps contains thread rolling rollers 1 mounted on axles 2 in the spring elements 3 of the housing 4. The housing also contains an adjustable one. The sleeve 5, on the inner surface of which the protrusions 6 are made. The position of the sleeve 5 relative to the housing 4 is fixed by a screw 7. The work of the head is as follows.

Claims

A head for rolling threads on taps is installed, for example, in the tailstock of a lathe. A billet of a tap with pre-made flats is secured in the cartridge. Turn on the machine. moves the head to the workpiece and, moving it along the axis of the workpiece, rolls onto the last thread of the required length. After that, the movement is reversed and the head is retracted to its original position. In the rolling process, the thread rolling rollers 1 are in contact with the faceted workpiece, and reciprocating movement in the radial direction is obtained. Moreover, the maximum size of the thread (on the edges of the faces) is limited by the adjusting sleeve 5. By turning the adjusting sleeve 5 relative to the housing 4, the lengths of the arms of the spring elements are changed, and thereby the diameter and the backing out value of the thread. The use of the proposed head allows to expand the tolerance on the diameter of the tap workpiece and to improve the accuracy of the thread being formed. Claims of the head for rolling threads on the taps, comprising thread rolling rollers mounted on the axes in the spring elements of the housing, characterized in that, in order to improve accuracy; it is provided with an adjusting sleeve mounted on the housing, on the inner surface of which protrusions are made, which have the possibility of interaction with the spring elements of the housing. Sources of information taken into account in the examination 1.Sultanov TA Thread rolling heads. M., Mechanical Engineering, 1966, p. 93, rice, 42..

2. Authors certificate of the USSR 701736, cl. B 21 N 3/04, 01.12.77.