SU570137A1

SU570137A1 - Method of manufacturing contact nest

Info

Publication number: SU570137A1
Application number: SU7402029963A
Authority: SU
Inventors: Альбертас Наполеоно Василяускас
Original assignee: Предприятие П/Я В-8574
Priority date: 1974-05-20
Filing date: 1974-05-20
Publication date: 1977-08-25

Description

1one

Изобретение относитс к области электротехники и может быть использовано при разработке комплектующих изделий дл радиоаппаратуры, в частности , дл разъемных контактов.The invention relates to the field of electrical engineering and can be used in the development of components for radio equipment, in particular, for detachable contacts.

Известен способ изготовлени электрического лепесткового гнезда со сжатыми губками, включающий формирование гнезда из полосы- упругого металла, изготовление ленточной пружины и сборку гнезда 1.A known method of manufacturing an electric flared nest with compressed jaws, comprising forming a nest from a strip of elastic metal, making a band spring and assembling the nest 1.

Недостатком известного способа вл етс сложность технологии изготовлени лепесткового гнезда за счет наличи двух последних указанных операций .The disadvantage of this method is the complexity of the technology of manufacturing a petal nest due to the presence of the last two specified operations.

Наиболее близким техническим решением к изобретению вл етс способ изготовлени контактного гнезда из полосы упругого металла, заключающийс в придании заготовки . U - образной формы со следующим обжатием-в поперечном и продольном направлени х с помощью пуансона и матрицы 2.The closest technical solution to the invention is a method of making a contact socket of an elastic metal strip, which consists in imparting a preform. U-shaped with the following compression-in the transverse and longitudinal directions with the help of the punch and die 2.

Однако этот способ не позвол ет получить предварительно го напр жени между сомкнутыми стенками гнезда. Как известно, контактное усилие в контактной паре зависит от жесткости и прогиба . Здесь про вл етс ограниченкостьHowever, this method does not allow to obtain a preliminary voltage between the closed walls of the socket. As you know, the contact force in the contact pair depends on the stiffness and deflection. This is where the limitations appear.

применени контактного гнезда с разведенными стенками, так как ;при подсоединении штыр малой толщины образуетс малый прогиб дл создани контактного усили .use of a contact socket with divorced walls, since; when connecting a pin of small thickness, a small deflection is formed to create a contact force.

Целью изобретени вл етс созда ние предварительного напр жени между сомкнутыми стенками гнезда.The aim of the invention is to create a prestress between the closed walls of the socket.

Это достигаетс тем, что после придани заготовке из полосы упругого металла и - образной формы со следующим обжатием в поперечном и продольном направлени х с помощью пуансона 1и матрицы производ т дополнительное обжатие в поперечном направлении до соединени стенок гнезда с образованием петли на его основании, после чего петлю деформируют в продольном направлении .This is achieved by the fact that after making the preform out of a strip of elastic metal and a figurative shape with a subsequent compression in the transverse and longitudinal directions, using the punch 1 and the die, additional compression is performed in the transverse direction until the nest walls are joined to form a loop at its base, after which the loop is deformed in the longitudinal direction.

При такой последовательности операдий возникают внутренние напр жени и стенки гнезда остаютс сомкнутыми с предварительным напр жением-,With such a sequence of operadies, internal stresses arise and the walls of the socket remain closed with a preliminary stress;

Claims

FIG. 1 is a diagram illustrating how a U-shape is attached to a blank of an elastic metal strip; in fig. 2 is a diagram where a U-shaped preform is crimped in the transverse and longitudinal direction and x) in FIG. 3 - the contact socket is additionally crimped in the transverse direction until the walls are joined to form a loop at its base; in fig. 4 - the noose loop is additionally deformed in the longitudinal direction; in fig. 5 - pin socket in finished form. A preform is attached to the blank of a strip of elastic metal on the punch 1, which, being lowered, presses the strip into the groove formed by the dies 2 (Fig. 1). During the further course of the punch, the billet is pressed in the transverse and longitudinal directions to form the wall 3 and the loop 4 of the contact socket (Fig. 2). The sequence of the above operations is known, after which the contact socket with the diluted walls is removed. Next, the walls of the contact socket are clamped by strips 5 in the transverse direction before they are joined. Based on the contact socket, a closed loop 4 is formed (Fig. 3). Then the punch 6 receives its stroke and the loop is defrosted in the longitudinal direction until it adopts the configuration indicated in FIG. 4. Having released the nested nest, the arisen internal ones on the yarn hold the nest walls closed with preliminary voltage. The contact socket retains the view shown in FIG. 5. Contact force in a contact pair with a socket, whose walls are connected with a prestress, depend not only on stiffness and deflection / but also on the force of the pre-stress. Connecting a small tolgcina pin and having a small deflection, but sufficient pre-stress, embedded in the technology of manufacturing the socket, sufficient contact force is obtained. The invention The method of manufacturing a contact socket of an elastic metal strip is to give the workpiece and the shape with the following compression in the transverse and longitudinal directions using a punch and die, characterized in that, in order to create a preliminary voltage between the nest walls, in addition compression is performed in the transverse direction until the nest walls are joined to form a loop on its base, after which the loop is deformed in the longitudinal direction. Sources of information accepted by all the attention during the examination: 1. Belousov AK, Savchenko V. S. Electrical plug-in contacts in electronic equipment, M., Energii, p. 116, 1967.

2.Sakharov, P.V., Electrical Apparatus Technology, Gosenergoizdat, 1956, p. 82-84.