CN2351766Y

CN2351766Y - Testing probe and guide wire coupling structure

Info

Publication number: CN2351766Y
Application number: CN 98225475
Authority: CN
Inventors: 黄介崇
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-29
Filing date: 1998-10-29
Publication date: 1999-12-01
Anticipated expiration: 2008-10-29

Abstract

The utility model provides a new assembling structure of a probe and a conducting wire, which comprises a sleeve pipe part, a probe with an assembling part passing through the inner part of the sleeve pipe part and a conducting wire. One end of the conducting wire is provided with a joint assembled with the assembling part. The assembling part and the joint are respectively provided with a plurality of clamping parts which are fixed and matched with and corresponding to fixed slots. The purposes of fixed connection and uneasy disconnection can be obtained by the mutual clamping arrangement of the fixed slots and the clamping parts.

Description

Probe and lead winding new construction

The utility model relates to the assembly of a kind of probe, particularly a kind of probe.

At present probe is mainly used in testing the electronic circuit board after various the finishing, probe configuration is contacted with electronic circuit board on measurement jig, the result that will be tested by probe passes computer back through lead again, to confirm whether electronic circuit board has the place of short circuit, and the mode of traditional probe and lead winding as shown in Figure 1, 2, be utilize the joint of lead 3 ' one ends directly be nested with probe 2 ' group connecting part, the friction tight mode of mat is fixed on the group connecting part its joint; But this winding mode, the required precision requirement of its element is higher, and cost of manufacture also improves thereupon relatively; On the other hand, when use test, because the outer rim of above-mentioned probe, be to be nested with a cannula portion, use being assembled on the tool (figure does not show), and an end of this cannula portion is bolted with a spring, when the probe on the tool contacts with electronic circuit board, this spring is the effect of tool buffering, and this moment, spring also became a form that stretches; Because above-mentioned group connecting part and joint are to adopt friction tight winding mode; slide for some reason and be subjected to displacement as probe, away from the electronic circuit board time, be nested with thereon the spring elastic force when replying; regular meeting makes above-mentioned group connecting part separate with joint, thereby causes the puzzlement in the test.

The purpose of this utility model is that a kind of probe and lead winding new construction will be provided, it can make probe group connecting part and terminal fix and difficult drop-off, its winding cooperates the bigger tolerance of tolerable, and can reduce the element scrappage, reduce manufacturing cost, be easy to simultaneously the assembling, can reach save time, the labor-saving effect.

Utility model is achieved in that group connecting part and joint are the fastening parts that respectively has plurality of fixed groove and coupling and corresponding pickup groove, and pickup groove and fastening part are fastened affixed.

Have a plurality of annular pickup grooves on the group connecting part, inner nosepiece wall has the corresponding fastening part of coupling, and the configuration relation of the two is interchangeable; Fastening part can be above salient point, annular protruding rib and a shell fragment.

A plurality of annular pickup groove on the utility model mat group connecting part, with the coupling of inner nosepiece wall fastening part corresponding to annular pickup groove, can reach the purpose of fixing and difficult drop-off, this winding mode is being made in the production simultaneously, the tolerance nargin that tolerable is bigger, can reduce the situation that element falls short of specifications so that scraps, reaching the purpose that reduces cost, as when utilizing artificial assembling, also can assemble more easily, save time to reach, laborsaving purpose.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is conventional probe and lead combination cross-sectional schematic.

Fig. 2 is the partial enlarged drawing of A among Fig. 1.

Fig. 3 is that the utility model axle is surveyed decomposing schematic representation.

Fig. 4 is an A-A cross-sectional schematic among Fig. 3.

Fig. 5 is the local enlarged diagram of B among Fig. 4.

Fig. 6 is that the utility model is implemented synoptic diagram.

Fig. 7 is another enforcement synoptic diagram of the utility model.

With reference to Fig. 3, the utility model includes a cannula portion 1, and is set in probe 2 in the cannula portion 1, and one and the lead 3 of probe 2 windings;

Cannula portion 1 includes the plastic casing-pipe 11 of a hollow, and an end of plastic casing-pipe 11 is bolted with a spring 12, and the other end of spring 12 is the stopper section 121 of an internal diameter convergent;

One probe 2, have an axle center body of rod 21 that is nested with in cannula portion 1, and be extended with the less group connecting part of a diameter 22, have a plurality of annular pickup grooves 23 on the group connecting part 22 at its free end, because the axle center body of rod 21 and group connecting part 22 internal diameters is different, and is formed with a stop surface 24;

Be connected with one and the joint 31 of group connecting part 22 windings at lead 3 one ends, joint 31 inwalls have the fastening part of coupling corresponding to annular pickup groove 23, and fastening part is the formed shell fragment 32 of impact style;

Said fixing groove 23 and the fastening part configuration relation between group connecting part 22 and joint 31 is interchangeable.

With reference to Fig. 4,5, cannula portion 1 of the present utility model is the outer rim that is nested with at the axle center body of rod 21, and the stopper section 121 of mat spring 12 is nested with in position plastic casing-pipe 11 to ending at stop surface 24; Group connecting part 22 and joint 31 windings, a plurality of annular pickup groove 23 on the mat group connecting part 22, be fastened with the coupling of joint 31 inwalls shell fragment 32 corresponding to annular pickup groove 23, to reach the purpose of fixing and difficult drop-off, and this kind winding mode, making in the production tolerance nargin that tolerable is bigger; If when utilizing artificial assembling, also can assemble more easily, save time to reach, the labour-saving purpose.

With reference to Fig. 6,7, as shown in the figure, coupling also can be annular protruding rib 33 or more than one salient point 34 corresponding to the fastening part of annular pickup groove 23 in the joint 31 of the present utility model, uses the purpose that reaches fixing fast and be difficult for coming off because of external force.

During use, pass test result back computer through lead 3, to confirm whether electronic circuit board is normal by the probe 2 that is assembled on the tool.

Claims

1, a kind of probe and lead winding new construction, include a cannula portion, a tool group connecting part and be set in cannula portion interior a probe and a lead, lead one end has the joint with the group connecting part winding, it is characterized in that: group connecting part (22) is the fastening part that respectively has plurality of fixed groove (23) and coupling and corresponding pickup groove (23) with joint (31), and pickup groove (23) and fastening part are fastened affixed.

2, probe according to claim 1 and lead winding new construction is characterized in that having a plurality of annular pickup grooves (23) on the group connecting part (22), and joint (31) inwall has the corresponding fastening part of coupling, and the configuration relation of the two is interchangeable.

3, probe according to claim 1 and lead winding new construction is characterized in that fastening part can be shell fragment (32), annular protruding rib (33) or an above salient point (34).