SU1365191A1 - Method of producing contact sockets - Google Patents

Description

(21) 3796088 / 24-07

(22) 03.10.84

(46) 07.01.88. Bhul. № 1

(72) A.I.Nikiforov and V.Z. Tsarfin

(53) 621.315 (088.8)

(56) Patent of France No. 2517480, cl. H 01 R 13/10, 1983.

Patent of Germany No. 1465102, cl. H 01 R 13/10, 1986.

(54) METHOD OF MANUFACTURING CONTACT NESTS

(57) The invention relates to electrical engineering, in particular, to the technology of manufacturing electric contact devices, and can be used in the manufacture of electrical connectors. The aim of the invention is to increase reliability. The goal is accomplished by performing a rectangular shank wire. At the same time at least one edge of the shank is made with corrugation. 6 Il.

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1The invention relates to the field of electrical engineering, in particular, to the production technology of electrical contact devices, and can be used in the manufacture of electrical connectors.

The aim of the invention is to increase reliability.

Figure 1 shows a flow diagram for the manufacture of a pin jack; figure 2 - section aa in figure 1} in fig.Z - type B in figure 2; Fig, 4 - pin socket before crimping; figure 5 is a section bb In figure 4; figure 6 - section GG in fig. four.

The contact socket consists of two contact lobes of 1 variable cross section, directed towards each other. By gradually thickening from the free ends, the contact lobes 1 are transferred at the base into a U-shaped crust 2, which is inseparably connected by a shank 3 made of rectangular wire with applied ribbing on at least one edge.

The proposed method of manufacturing a jack is characterized by the following operations.

The punch 4 pierces the technological holes 5 under the catchers on the carrier section of the belt 6 in order to prevent accumulation of errors when the tape is fed from operation to operation.

Contact petals are bent and, at the same time, by plastic single deformation, they are given a predetermined profile of gradual thickening from the free ends towards their transition to the crust, as well as the simultaneous dimensioning of the width. Technological glove 11 connecting the box to the carrying section of the tape. Then silver is coated to the technological bridge and gold, in order to save only on the contact part of the petals.

The subsequent operation bends the U-shaped box so that its open part is oriented upwards.

In order to form the shank of the contact socket, perpendicular to the movement of the tape and in its plane, a wire 12 of rectangular section is fed, on the edge of which a corrugation is made (applied). Pre-galvanic wire is coated with low-melting protective low-cost material (solder).

Connector and with stamped contacts, contact sockets used in industry in installations

and machines for printed wiring and for wrap-up connections, when a conductor is wound onto the shanks of the contact sockets. The grooved on the edge of the shank increases the reliability of the joint, i.e.

eliminates slipping wound conductor.

The next operation is forming the end of the wire facing

to the tape, and the end of the wire after forming the width and length of commensurate with the internal size of the U-shaped box.

Then the molded end of the wire

they slide into the box along the upper surface of the carrier section of the tape, place it in the box and are inseparably connected with the box (crimp), after which the shank is separated from the main wire in the position. The box is calibrated in order to accurately position the contact lobes among themselves. Then, shaping of the free end of the shank in the form of a cone and, finally, separation of the contact socket from the supporting section of the tape along the technological bridge, is performed.

For example, contact sockets were made, consisting of a box with contact lobes and a shank.

The boxes were stamped from Brb2 tape with a thickness of 0.5 mm. Length

boxes with contact lobes 8.8 mm. The boxes in expanded form were covered with nickel with a thickness of 6-9 microns. The contact part of the petals was covered with gold with a thickness of 2-3 microns. The tails were made of wire of brand Br024-3 of rectangular cross section 0.6x0.6 mm, pre-coated by electroplating with an alloy of tin-bismuth with a thickness of 12 microns.

The end of the wire inserted into the box was molded, after which it took the form of a spatula with a prismatic protrusion,

The tail of the molded end was pushed into the box, then crimped, detached from the main wire and machined (turned around) the free end. The length of the shank was 17.75 mm. The total length of the jack is 23.5 mm.

Compared with the known method, the proposed method provides an increase in the utilization rate of the material from 0.55 to 0.75 by reducing the consumption of the tape going to waste (the cutting of the shanks is made from rectangular wire)

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A positive effect is achieved by increasing reliability.

Claims (1)

Invention Formula The method of making contact sockets, which consists in cutting a V-shaped billet out of a tape material, connected with a web material by a jumper, bending the petals of the billet in one direction by 90, setting up the shank characterized in that, in order to increase reliability, the shank is made of rectangular wire, wherein at least one edge of the shank is made with corrugation. FIG. 2 Hyde B Phi2.5 R  L J.