CN213337903U

CN213337903U - PCB composite jig

Info

Publication number: CN213337903U
Application number: CN202022073651.7U
Authority: CN
Inventors: 阳荣军; 黄状; 秦霁
Original assignee: MFS TECHNOLOGY (HUNAN) CO LTD
Current assignee: MFS TECHNOLOGY (HUNAN) CO LTD
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-01
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a PCB composite jig, which comprises a cover plate, a panel, a bottom plate and a spring thimble, wherein the lower end of the spring thimble is contacted with the bottom plate, the panel is provided with a third through hole, the third through hole passes through the spring thimble, and the upper end of the spring thimble is contacted with the cover plate; the apron is equipped with first through-hole, the panel is equipped with the boss, the boss is equipped with the second through-hole, the bottom plate is equipped with the probe, the probe passes the setting of second through-hole. When the circuit board is detected, the circuit board is only contacted with the upper end plane of the cover plate in the process of placement or evacuation, the contact with the probes is avoided, and therefore the probes can be prevented from being bent.

Description

PCB composite jig

Technical Field

The utility model relates to a PCB check out test set field especially relates to a compound tool of PCB.

Background

In the production and manufacturing process of the circuit board, the PCB jig is required to detect, and the open circuit and the broken circuit of the PCB are detected by utilizing the circuit principle so as to determine whether the circuit is accurate or not. Common PCB tool, its probe expose the panel, at the testing process, operating personnel places the circuit board and detects on the probe, because the probe diameter is very little, very easily takes place bending deformation at the use, even operating personnel is carefully handled specially, also is difficult to avoid this phenomenon. The probe repair is time-consuming and labor-consuming, and the probe is easy to break after being bent for many times, so that the jig is scrapped. The PCB jig detection cost is increased due to the above phenomena, and the detection efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB composite jig to the technical problem of crooked takes place easily for the probe of solving the PCB tool.

In order to achieve the purpose, the utility model provides a PCB composite jig, which comprises a cover plate, a panel, a bottom plate and a spring thimble, wherein the lower end of the spring thimble is contacted with the bottom plate, the panel is provided with a third through hole, the third through hole passes through the spring thimble, and the upper end of the spring thimble is contacted with the cover plate; the apron is equipped with first through-hole, the panel is equipped with the boss, the boss is equipped with the second through-hole, the bottom plate is equipped with the probe, the probe passes the setting of second through-hole, and the top position of probe is less than apron upper end plane.

Furthermore, a supporting plate is arranged between the panel and the bottom plate, and a third through hole and a second through hole are formed in the supporting plate.

Further, the spring probe comprises a needle tube and a spring, one end of the spring is fixedly arranged inside the needle tube, the movable end of the spring is in contact with the lower end of the needle head, and the upper end of the needle head is exposed out of the needle tube.

Furthermore, a thimble base is arranged at the lower end of the needle tube.

Further, the boss height is less than or equal to the thickness of the cover plate.

The utility model discloses following beneficial effect has: when the circuit board is detected, the circuit board is only contacted with the upper end plane of the cover plate in the process of placement or evacuation, the contact with the probes is avoided, and therefore the probes can be prevented from being bent. And a supporting plate is arranged between the panel and the bottom plate and provides horizontal support for the probes to prevent the middle positions of the probes from being bent.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

figure 1 is a cut-away schematic view of a preferred embodiment of the invention;

FIG. 2 is a schematic view of a cover plate according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a panel of a preferred embodiment of the present invention;

fig. 4 is a schematic view of a pogo pin according to a preferred embodiment of the present invention.

In the figure: 1. a cover plate; 2. a panel; 3. a support plate; 4. a base plate; 5. a spring thimble; 6. a probe; 11. a first through hole; 21. a boss; 22. a second through hole; 23. a third through hole; 51. a needle head; 52. a needle tube; 53. spring, 54, thimble base.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Referring to fig. 1, 2, 3 and 4, the PCB composite jig includes a cover plate 1, a panel 2, a bottom plate 4 and a spring thimble 5, wherein the lower end of the spring thimble 5 contacts with the bottom plate 4, the panel 2 is provided with a third through hole 23, the third through hole passes through the spring thimble 5, and the upper end of the spring thimble 5 contacts with the cover plate 1; the apron 1 is equipped with first through-hole 11, panel 2 is equipped with boss 21, boss 21 is equipped with second through-hole 22, bottom plate 4 is equipped with probe 6, probe 6 passes second through-hole 22 and sets up. The first through hole 11 is matched with the boss 21 in shape, the boss 21 can penetrate through the first through hole 11, and the boss 21 can move up and down smoothly in the first through hole 11; the top end of the probe 6 is lower than the upper plane of the cover plate 1.

When the circuit board is detected, the circuit board is placed above the cover plate 1, the specific position of the circuit board is aligned with the specific position of the cover plate, the circuit board or the cover plate 1 is pressed downwards by force, and the circuit board can be contacted with the probe 6 in the pressing process due to the contact of the cover plate 1 and the upper end of the spring thimble 5, so that the circuit board circuit is detected. The probes 6 can be prevented from bending because the circuit board is only in contact with the upper end plane of the cover plate 1 in the placing or withdrawing process and is prevented from touching the probes 6.

The supporting plate 3 is arranged between the panel 2 and the bottom plate 4, the supporting plate 3 is provided with a third through hole 23 and a second through hole 22, the number and the thickness of the supporting plates 3 are determined according to the condition of the probes 6, and the supporting plates 3 provide horizontal support for the probes 6 and prevent the middle positions of the probes 6 from being bent.

The spring probe 5 comprises a needle tube 52 and a spring 53, wherein one end of the spring 53 is fixedly arranged in the needle tube 52, the movable end of the spring 53 is contacted with the lower end of a needle head 51, and the upper end of the needle head 51 is exposed out of the needle tube 52. The lower end of the needle tube 52 is provided with a thimble base 54 which is connected with the bottom plate 4, and the thimble base is provided with threads so as to be convenient for being assembled and disassembled on the bottom plate 4.

The height of the boss 21 is less than or equal to the thickness of the cover plate 1, and the height of the boss 21 refers to the distance that the upper end plane is higher than the upper end peripheral plane of the panel 2. If the height of the boss is too high, the boss jacks up the circuit board when the boss is pressed down, and the circuit board may be damaged.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The PCB composite jig is characterized by comprising a cover plate (1), a panel (2), a bottom plate (4) and a spring thimble (5), wherein the lower end of the spring thimble (5) is in contact with the bottom plate (4), the panel (2) is provided with a third through hole (23), the third through hole penetrates through the spring thimble (5) to be arranged, and the upper end of the spring thimble (5) is in contact with the cover plate (1);

apron (1) is equipped with first through-hole (11), panel (2) are equipped with boss (21), boss (21) are equipped with second through-hole (22), bottom plate (4) are equipped with probe (6), probe (6) pass second through-hole (22) and set up, and the top position of probe (6) is less than apron (1) upper end plane.

2. The PCB composite jig according to claim 1, wherein a support plate (3) is arranged between the panel (2) and the bottom plate (4), and the support plate (3) is provided with a third through hole (23) and a second through hole (22).

3. The PCB composite jig according to claim 1, wherein the spring thimble (5) comprises a needle tube (52) and a spring (53), one end of the spring (53) is fixedly arranged inside the needle tube (52), the movable end of the spring (53) is contacted with the lower end of the needle head (51), and the upper end of the needle head (51) is exposed out of the needle tube (52).

4. The PCB composite jig of claim 3, wherein the lower end of the needle tube (52) is provided with a thimble base (54).

5. The PCB composite jig according to claim 1, wherein the height of the boss (21) is less than or equal to the thickness of the cover plate (1).