CN100403603C

CN100403603C - Electric insert-pull element and its manufacturing method

Info

Publication number: CN100403603C
Application number: CNB2005101196693A
Authority: CN
Inventors: 陈煜初
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-15
Filing date: 2005-11-26
Publication date: 2008-07-16
Anticipated expiration: 2025-11-26
Also published as: CN1790822A

Abstract

The present invention relates to an inserting element and a fabrication method thereof. The element is a cylindrical hollow copper pipe, one end is a semicircular spherical surface, and the other end is a reducing press and connection head of an electric wire; For the present invention, one end of the hollow copper pipe is sealed into the semicircular spherical surface by friction molten welding, and the other end is formed into the press and connection head by diameter reduction by the cold extrusion technology. The element has the advantages of a circular copper columnar inserting sheet and a flat inserting sheet; the electrical property is good, and copper materials can be saved; the thin-wall flexible metal pipe is sealed by the friction molten welding new technology, so the popularization and application prospect is wide. The present invention can be widely applied to the fabrication and the use of electric inserting elements.

Description

Manufacture method of a kind of electric insert-pull element and products thereof

Affiliated technical field

The present invention relates to manufacture method of a kind of essential electronic element, particularly a kind of electric insert-pull element and products thereof.

Background technology

In electric equipments such as household electrical appliance, industrial equipment, instrument, generally use a kind of plug that connects lead, conveniently to be connected in the supply socket.Present employed plug, interconnecting devices wherein have two classes substantially, one class is to use the real core copper of cylinder post, because the electrical contact performance on its face of cylinder is good, easy to use, safe and reliable, and generally adopted all over the world, but its consumption material is quite big, China is the country that copper ore resource lacks, thereby regulation adopts another kind of interconnecting devices on national standard, promptly flat inserted sheet, and the consumption copper rate of this inserted sheet is lower, under identical amount of copper consuming situation, comparable column type solid copper pin obtains more contact conductive area, but that its shortcoming is a mechanical strength is slightly poor, electrical contact performance is not as good as column type copper post, thereby at the reliable electrical equipment of some electrical contact performance stability and safety, for example the power-line plug of computer still uses column type copper post.Aspect manufacture method, to the processing of electric insert-pull element all adopt car, mill, traditional diamond-making technique such as weldering, particularly weld terminals and turnning and milling round end, it is quite high that tiny element is carried out the electric welding production cost, manufacturing process is not seen breakthrough.As a kind of a large amount of most basic electric components that generally use, this two classes electric insert-pull element defective separately is difficult in the same element and is overcome simultaneously.

Summary of the invention

The objective of the invention is to avoid above-mentioned the deficiencies in the prior art part, and manufacture method of the electric insert-pull element that a kind of electrical contact performance is good, connection is reliable and stable, consumption copper rate is lower and products thereof is provided.

Purpose of the present invention can reach by following measure:

A kind of manufacture method of electric insert-pull element comprises following operation:

A. by Len req the hollow copper pipe is cut into pipe one by one;

B. melt the technology of weldering with friction, the bad end closure of pipe is become semicircle sphere, obtain round end hollow copper pipe;

C. use cold extrusion once-forming technology, the other end undergauge of round end hollow copper pipe is become the electric wire crimp head, thereby obtain the columniform hollow copper pipe of above-mentioned electric insert-pull element.

The manufacture method of above-mentioned a kind of electric insert-pull element comprises the operation of columniform hollow copper pipe being carried out electroplating surface.

Welder skill is melted in above-mentioned friction, is that a end with pipe is inserted in the semicircle sphere die cavity of the mould that an intracavity diameter equates with the overall diameter of pipe, and mould holder rotates on the chuck of drilling machine, and die cavity and pipe generation rub in short-term and melt and be welded into shape.

A kind of electric insert-pull element, it is a kind of conducting element that is fixed on the connector assembly of insulation, this electric insert-pull element is a kind of columniform hollow copper pipe, it is the copper post surface by cylinder, semicircle sphere on the cylinder insertion end, the electric wire crimp head of reduced on the other end, and the hollow core portion of cylinder inside is formed.

Manufacture method of electric insert-pull element of the present invention and products thereof has following advantage:

1. have the advantage of round copper post and two kinds of elements of flat inserted sheet concurrently, electrical contact performance is good, and is reliable and stable, under long-pending identical with the real core plug situation of profile and conductive contact surfaces, can save copper material 50%～80%, thereby application prospect is very wide.

2. the machining accuracy height of weldering new technology is melted in friction, and technology is simple, cost is low, be a kind of very promising new method.The hollow copper pipe is difficult to realize the difficult problem of pipe end seal and hemisphere face processing because tube wall is thin, hardness is low, fusing point is low, adopt car, traditional techniques technology such as mill.

Below in conjunction with drawings and Examples the present invention is done further narration.

Description of drawings

Fig. 1 is the cutaway view of electric component of the present invention, Fig. 2 is the cutaway view of round end hollow copper pipe, Fig. 3 is the cutaway view of the real core copper of existing traditional element post element, Fig. 4 is the process flow diagram of manufacture method of the present invention, arrow is represented the technological process direction, and Fig. 5 is that the plant structural representation of mould therefor of welder is melted in friction.Among each figure, the 1st, pipe, the 2nd, round end hollow copper pipe, the 3rd, electric insert-pull element of the present invention, the 31st, the copper post surface of this element, the 32nd, its semicircle sphere, the 33rd, its electric wire crimp head, the 34th, hollow core portion in its cylinder, the 4th, real core copper rod electric component, the 5th, the used mould of weldering, the 51st, its inner chamber, the 6th, the chuck of drilling machine are melted in friction.

Embodiment

As shown in drawings, be cut into pipe 1 one by one with the hollow copper pipe of Φ 4mm, it has copper post surface 31, each pipe 1 long 20mm, and copper pipe adopts copper tube or H62-H65 brass tube.A special mould 5 usefulness drilling machine chucks 6 are clamped, this mould 5 has the spherical die cavity 51 of the semicircle of a minute surface, the internal diameter of die cavity 51 also is 4mm, long slightly than a semi-round ball, the rotating speed of drilling machine is at 1.5 ten thousand～20,000 rev/mins, by anchor clamps fixedly behind the pipe 1, to join the mould 5 that is clipped on the drilling machine chuck 6, make its die cavity 51 be pressed into an end of pipe 1 with the extremely short time, do the high speed rotating friction, the high temperature that is produced can make this end copper pipe melt the sealing mouth to become semicircle sphere 32, and pipe 1 is processed into half-finished round end hollow copper pipe 2 through this; Again with automatic punching machine to the other end of round end hollow copper pipe 2 extruding undergauge, form diameter less electric wire crimp head 33, obtain electric insert-pull element 3 like this, also can carry out electroplating surface to interconnecting devices 3, with its product quality of further raising.

As required, adopt manufacture method of the present invention, can make the electric insert-pull element of all size hollow circle copper post of different-diameter different length.

Claims

1. the manufacture method of an electric insert-pull element is characterized in that, this manufacture method comprises following operation:

A. by Len req the hollow copper pipe is cut into pipe (1) one by one;

B. melt the technology of weldering with friction, the end closure that will manage bad (1) becomes semicircle sphere (32), obtains round end hollow copper pipe (2);

C. use cold extrusion once-forming technology, the other end undergauge of round end hollow copper pipe (2) is become electric wire crimp head (33), thereby obtain the columniform hollow copper pipe (3) of above-mentioned electric insert-pull element.

2. the manufacture method of electric insert-pull element according to claim 1 is characterized in that, this manufacture method comprises the operation of columniform hollow copper pipe (3) being carried out electroplating surface.

3. the manufacture method of electric insert-pull element according to claim 1 and 2, it is characterized in that, it is semicircle sphere die cavity (51) lining that a end with pipe (1) is inserted into the mould (5) that an intracavity diameter equates with the overall diameter of pipe (1) that welder skill is melted in described friction, mould (5) is clipped in the chuck (6) of drilling machine and goes up rotation, and die cavity (51) and pipe (1) produce and rub in short-term and melt and be welded into shape.

4. the electric insert-pull element of making according to the described method of claim 1, it is a kind of conducting element that is fixed on the connector assembly of insulation, it is characterized in that: this electric insert-pull element is a kind of columniform hollow copper pipe (3), it is the copper post surface (31) by cylinder, semicircle sphere on the cylinder insertion end (32), the electric wire crimp head (33) of reduced on the other end, and the hollow core portion of cylinder inside (34) is formed.