CN1006509B

CN1006509B - Method of mfg. socket comprising contacting springs

Info

Publication number: CN1006509B
Application number: CN 85102141
Authority: CN
Inventors: 纽曼; 雷米斯
Original assignee: OTTO DUNCKEL ELECTRICAL APPARATUS Ltd
Current assignee: OTTO DUNCKEL ELECTRICAL APPARATUS Ltd
Priority date: 1985-04-05
Filing date: 1985-04-05
Publication date: 1990-01-17
Also published as: CN85102141A

Abstract

The present invention relates to a method of manufacturing a socket provided with a plurality of contacting springs which are radially inwards bent. A straight spring is inserted into a seat body by one end, and the front end of the spring and the center head part of a binding post are fixed into a whole by the deformation of a base body material. The other end of the spring is positioned on the supporting face of an annular barrel. The present invention is characterized in that firstly, a lining sleeve is inserted into a socket by attaching to the inner wall of the socket; then, the spring is inserted into the seat body to be abutted to the lining sleeve; an inverted cone circular rod and the annular barrel which is arranged on the circular rod are inserted into the seat body together; the circular rod is withdrawn so that the circular rod which is axially fixed is radially increased, and the outer end of the spring is outwards shifted along with the circular rod; finally, the center head part is deformed, and simultaneously, the inner end of the spring is deformed along with the center head part.

Description

Method of mfg. socket comprising contacting springs

The present invention relates to a kind of method of making the contact spring socket, this socket has many radially aduncate contact springs, and an end of contact spring is fixed on one and becomes substantially in the columnar socket, and this socket is made of deformable thin walled cylinder body.The step of this method is as follows: will be inserted by the straight contact spring that a section spring wire constitutes the socket from an end of socket, when in contact plays socket, having arranged mutually, the front end of contact spring and the central annular head that puts in the binding post front end of socket are fixed together; Free end at jack place contact spring is supported on the ring tube, and ring tube and an assembling pole match, and pole passes this ring tube, and pole inserts in the socket with one heart and in the end extracts out when assembling.

In Germany patent granted application P3342742.9-34, a kind of method that belongs to this technical field has been described, can the especially little contact spring socket of manufacturing structure according to this method.The sleeve wall thickness that this method is used is 0.1mm, can be prefabricated economically by drawing process, and can be easily from the outside with this sleeve distortion.After contact spring inserts, make on the socket two to correspond respectively to the ring tube and circular head all forms an annular groove that radially inwardly stretches out in the place that certain intervals is axially arranged.These annular radial grooves are pushed down contact spring, and it is radially curved inwardly.

In this way, diameter has only the contact plug of 0.6mm only need provide an external diameter to have only the socket of 1.5mm.Like this can the very a large amount of contact spring socket of arranged in very little space, thus the electric wire connecting junction of high-quality many contact points produced at low cost.

In this manufacture method, the degree of deformation of socket has determined the size of annular groove, thereby has determined the degree of crook of contact spring, and the degree of crook of contact spring has determined the size of contact force.

Disclosed a kind of method in the CH-340878 patent, it is the inner chamber that the back taper sidewall is arranged of the contact spring that prebends being put into socket, and puts into soft copper piece pier again and slightly an end of spring is fixed.The openend of inner chamber has conical surface, cooperating conical plug and in forming ring cone space being housed in the other end of spring, can encircle in the cone space at this during the camber of spring elongation and freely extend, this method complex process, the processing road number of part is many in addition, tolerance is tight, must comprise cut, institute is so that manufacturing cost improves, and whole size also cannot be dwindled.

According to the present invention,, then needn't form annular groove with the distortion of socket if when making the contact spring socket, finish the following step:

A. the inwall of a lining being close to socket inserts the middle part of socket and makes its two ends all be positioned at socket;

B. contact spring is inserted in the socket, they nestle up lining and its front end and put in the socket inwall and insert in the annular concentric slit between the central head of the binding post in the socket;

C. pole and dress ring tube are thereon inserted in the socket together, it is conical that this pole is, and diameter increases towards its front end;

D. pole is extracted out in socket, axial irremovable ring tube is radially being increased, the ring tube is radially outward moving till being close to the socket inwall outer end of contact spring simultaneously;

E. make the central head distortion, also distortion thereupon of the inner of contact spring simultaneously;

F. the outward flange of socket is folding, at random form a flanging, the ring tube is fixed.

Because after having finished these steps, the interior ora terminalis of lining is radially inwardly pushed down contact spring, so these ora terminalis have determined the strain of contact spring.Their flexibility just can determine that quite easily this helps to make exactly before assembling.Manufacturing can quite promptly be carried out, because the increase of ring tube is accompanied by strain, and the jack that so forms provides passage for distortion central head used tool just.

Help the ring tube to increase if pass to its some vibration when pole is extracted out in socket, so this method is specially adapted to encircle the rapid distortion of tube.For this reason, the size below verified is favourable, and the diameter of circular cone rod maximum cross section is more a little bit smaller than the twice that the internal diameter of lining deducts the contact spring diameter.

Following description and accompanying drawing will further disclose details of the present invention, advantage and feature, and accompanying drawing has also shown all details of not describing in the literary composition.The contents are as follows shown in the accompanying drawing:

Fig. 1 to 3 is the step that said method is produced a socket finished product according to the present invention.

Referring to accompanying drawing, contact spring socket as shown in Figure 3 has one and roughly becomes columnar socket 1, and this socket 1 is made of deformable thin walled cylinder body.Socket 1 and binding post 2 form a member together.A flanging 3 that is used for fixing ring tube 5 is arranged on the other end of socket 1, and ring tube 5 nestles up flanging 3 and a central jack 4 is arranged.

A lining 6 is close to its inwall at the middle part of socket 1, and the ora terminalis 7 and 8 of lining is all in socket.Many contact springs 9 are supported on the lining.One end of these contact springs 9 is clamped by the central annular head 10 of the binding post 2 in the inwall of socket 1 and the insertion socket.Contact spring 9 can move freely in the narrow annular channel 15 between socket and the ring tube 5 facing to that end of jack.Contact spring 9 is close to the ora terminalis 7 and 8 of lining 6 and has just been produced radially curving inwardly as shown in Figure 3, and lining 6 is supported on the inwall of socket, the external diameter after its internal diameter increases less than ring tube 5.The ora terminalis 7 that contact spring 9 is close to and 8 corresponds respectively to ring tube 5 and central head 10 at the axially spaced-apart certain distance.Ora terminalis makes contact spring strain radially inwardly.

As shown in Figure 3, in the contact spring socket of making, the internal diameter of ring tube 5 is greater than the minimum spacing between the contact spring 9 of the bending in passing through the plane of socket axis at any one.According to above-mentioned size relationship,, also can guarantee good common contact even depart from its axis a little during plug insertion socket.Because the end of contact spring 9 is removable, so it just can hold the plug that is in eccentric position.

Accompanying drawing is depicted as step of manufacturing of the present invention.At first socket 1 is placed, then lining 6 is inserted till it is positioned at the socket middle part.

In next step, contact spring 9 is inserted in the socket 1 by the conveying device (not shown).Make in the annular space of its front end between socket wall and central head 10.They nestle up lining 6 and are being arranged in parallel in fact like this.

As shown in Figure 2, in next step, an assembling pole 12 inserts in the socket 1 together with dress ring tube thereon.Promptly insert the middle section between the contact spring end.For the ease of inserting, pole 12 has a conical front end.The conical portion that diameter reduces has constituted the main body of pole 12, and it is the cross section the best part and then, and the diameter of maximum cross section deducts the twice of contact spring diameter less than the internal diameter of lining.Ring tube 5 approximately is supported on the interface point place of pole 12 and cylinder axis 14, and in this stage of this method, the internal diameter of ring tube 5 can be greater than the external diameter of axle 14.Ring tube 5 has a conical part 15, and it is convenient to nestle up with contact spring on position shown in Figure 2.The flange 16 of ring tube 5 radially extends beyond the contact spring end, and ring tube 5 is positioned under the device that and pole 12 match, and when pole was extracted out from socket 1 vertically, this device made that ring tube 5 is fixing can not to produce axial displacement.This device has a hollow cylinder of longitudinally cutting open 17, and its front end is close on the ring tube.For after pole 12 inserts socket 1, and before therefrom releasing again, pole 12 can check and alignment ring tube 5 that this two halves hollow cylinder is installed to such an extent that radially can relatively move.

Encircle tube 5 and make, so it can easily be out of shape and slowly increase in distortion by soft copper.By making this increase easy to its transmitting vibrations.Ring tube 5 increases to its flange 16 at last to be close to socket wall, and the end of contact spring 9 is also along with radially outward moving simultaneously.When ring tube 5 increased to maximum, the diameter of its central jack 4 was corresponding to the maximum gauge of pole 12.

After this, the socket outward flange is folded into flanging 3 and is used for further retainer ring tube 5.

By jack 4, with central head 10 radial deformations of binding post, the end of contact spring is moved thereupon outwardly, be close on the socket inwall.

Last under the state of making as shown in Figure 3, the contact spring socket can be finished the function test of regulation.

Claims

1, makes the method for contact spring socket, this socket has many radially aduncate contact springs (9), one end of contact spring (9) is fixed on one and roughly becomes in the columnar socket (1), this socket is made of deformable thin walled cylinder body, will be inserted by the straight contact spring (9) that a section spring wire constitutes the socket (1) from an end of socket; When contact spring (9) has been arranged in socket (1) mutually, the front end of contact spring (9) and the central annular head (10) that puts in binding post (2) front end of socket (1) are fixed together; Free end at jack place contact spring is supported on the ring tube 5, a ring tube (5) and an assembling pole (12) match, pole passes this ring tube, and pole inserts in the socket with one heart and in the end extracts out when assembling, the invention is characterized in the following step:

A. at first a lining (6) being close to the socket inwall inserts the middle part of socket (1) and makes its two ends all be positioned at socket;

B. contact spring (9) is inserted in the socket (1), they nestle up in the annular concentric slit (11) between the central head (10) that lining (6) and its front end put in the socket inwall binding post interior with inserting socket again;

C. pole (12) and dress ring tube (5) are thereon inserted in the socket (1) together, it is conical that this pole is, and diameter increases towards its front end;

D. pole (12) is extracted out in socket, axial irremovable ring tube (5) is radially being increased, the ring tube is radially outward moving till being close to the socket inwall original free end of contact spring simultaneously;

E. the outward flange of socket is folding, at random form a flanging (3), ring tube (5) is fixed.

F. make central head (10) distortion, also distortion thereupon of original front end of contact spring simultaneously;

2, according to the said method of claim 1, it is characterized in that: increase for the ease of ring tube (5), when pole (10) is extracted out in socket (1), can pass to its some vibration and make the expansion of ring tube easier.

According to claim 1 or 2 said methods, it is characterized in that 3, pole (12) is conical, the diameter of its maximum cross section is more a little bit smaller than the twice that the internal diameter of lining (6) deducts contact spring (9) diameter.

According to the said method of claim 3, it is characterized in that 4, the maximum gauge of pole (12) equals ring tube (5) and increases the diameter of its central jack (4) afterwards.

5, according to the said method of claim 1, it is characterized in that, insert socket (1) together afterwards, it can not be moved axially with a hollow cylinder (17) retainer ring tube at pole (12) and ring tube (5), hollow cylinder is divided into radially separable two halves, and its front end is close to the ring tube.