CN102928771A

CN102928771A - PCB testing jig

Info

Publication number: CN102928771A
Application number: CN2012104595572A
Authority: CN
Inventors: 蔡青春
Original assignee: Kunshan Myzy Fixture Technology Co Ltd
Current assignee: Kunshan Myzy Fixture Technology Co Ltd
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2013-02-13

Abstract

The invention discloses a PCB (Printed Circuit Board) testing jig which is characterized in that the jig comprises a box body, a probe board, a carrier board, a cover board, and a driving mechanism for driving the probe board to reciprocate vertically, wherein the probe board, the carrier board and the cover board are arranged above the box body in sequence from the bottom up; the driving mechanism comprises a cam arranged below the probe board, a handle fixedly connected with the cam and a rotating shaft allowing the cam to rotate around the rotating shaft; the carrier board is fixedly connected with the box body; the cover board is rotationally connected with the box body; and the cover board is opened and closed by barb handles. The jig has the benefits that the jig is small in size, convenient to move and place and simple in structure, the occupied space is small, materials are convenient to obtain, the manufacturing cost can be effectively controlled, the cam design is adopted, the testing jig is very convenient to mount, use and maintain, and the testing stability is good.

Description

A kind of PCB measurement jig

Technical field

The present invention relates to a kind of tool, be specifically related to a kind of measurement jig for measuring PCB.

Background technology

PCB, Chinese are printed circuit board (PCB)s, are the carriers that electronic devices and components are installed, and also are the suppliers of electronic devices and components electrical connection, and therefore, PCB is very important electronic unit.In order to guarantee to use its quality of product of PCB that absolute guarantee is arranged, the test job after the PCB making is complete is most important.And existing measurement jig, because its structure is comparatively complicated, so cause bulkyly, it is large not only to take up room, but also is not easy to move and places, and cost is all higher.In addition, the structure of measurement jig complexity is also installed, uses, is keeped in repair and brought certain inconvenience for it.So, existing PCB measurement jig, its structure is demanded urgently improving.

Summary of the invention

For solving the deficiencies in the prior art, the object of the present invention is to provide the PCB measurement jig that a kind of volume is small and exquisite, simple in structure, easy to operate, test result is stable, and this measurement jig design cost is more reasonable.

In order to realize above-mentioned target, the present invention adopts following technical scheme:

A kind of PCB measurement jig is characterized in that, comprising:

Casing,

The needle plate, support plate, the cover plate that set gradually from bottom to up in the top of aforementioned casing,

And drive aforementioned needle plate and do vertical reciprocating driving mechanism;

Aforementioned support plate is fixedly connected with casing;

Aforementioned cover plate and casing are rotationally connected.

Aforesaid PCB measurement jig is characterized in that, aforementioned driving mechanism comprises:

Be arranged at the cam of needle plate below,

The handle that is fixedly connected with aforementioned cam,

And for the rotating shaft that rotates around it for cam;

Aforementioned rotating shaft is fixedly connected with casing, is arranged at the junction of cam and handle.

Aforesaid PCB measurement jig is characterized in that, the angle between aforementioned cam and the handle≤90 degree.

Aforesaid PCB measurement jig is characterized in that, aforementioned cover plate is by barb handle opening and closing, and aforementioned barb handle is arranged at a side that is connected with casing of cover plate.

Aforesaid PCB measurement jig is characterized in that, is provided with retracing spring on the aforementioned barb handle.

Aforesaid PCB measurement jig is characterized in that, aforementioned needle plate below is fixedly connected with guidepost, and aforementioned casing is formed with the pilot hole that cooperates with aforementioned guidepost.

Aforesaid PCB measurement jig is characterized in that the below of aforementioned guidepost is fixedly connected with retracing spring.

Aforesaid PCB measurement jig is characterized in that, also comprises: day plate, aforementioned day plate is set in parallel in above the cover plate and with cover plate and is fixedly connected with.

Usefulness of the present invention is: volume is small and exquisite, and it is little to take up room, and is convenient to move and places; Simple in structure, draw materials conveniently, can effectively control manufacturing cost; Use cam design, not only install, use, keep in repair very convenient, and measuring stability is fine.

Description of drawings

Fig. 1 is the perspective view of a specific embodiment of PCB measurement jig of the present invention;

Fig. 2 is the right view of the PCB measurement jig among Fig. 1;

Fig. 3 is the vertical view of the PCB measurement jig among Fig. 1;

Fig. 4 is the rear view of the PCB measurement jig among Fig. 1;

The implication of Reference numeral among the figure: 1-casing, 2-needle plate, 3-support plate, 4-cover plate, 5-driving mechanism, 51-cam, 52-handle, 53-rotating shaft, 6-barb handle, 7-guidepost, 8-retracing spring, 9-days plates, 10-retracing spring.

Embodiment

Below in conjunction with the drawings and specific embodiments the present invention is done concrete introduction.

Referring to figs. 1 through Fig. 4, PCB measurement jig of the present invention comprises: casing 1, needle plate 2, support plate 3, cover plate 4 and driving mechanism 5.Casing 1 is horizontally disposed with, and its inside has a cavity; Needle plate 2, support plate 3, cover plate 4 set gradually from bottom to up, and all are arranged at the top of casing 1, and wherein, support plate 3 is fixedly connected with casing 1, and cover plate 4 and casing 1 are rotationally connected by coupling shaft.

Driving mechanism 5 among the present invention is used for driving needle plate 2 and does vertical to-and-fro movement, and as a kind of preferred scheme, driving mechanism 5 comprises: cam 51, handle 52, and rotating shaft 53.Wherein, cam 51 be positioned at casing 1 cavity, be arranged at the below of needle plate 2, and contact with needle plate 2; Handle 52 be positioned at casing 1 the outside, be fixedly connected with cam 51, the junction of the two is formed with a reception hole; One end of rotating shaft 53 is fixedly connected with casing 1, and the other end inserts in the above-mentioned reception hole, can realize that cam 51 53 rotates around the shaft, vertically moves reciprocatingly thereby drive needle plate 2 thereby move handle 52.

As a kind of preferred scheme, the angle between cam 51 and the handle 52≤90 degree can make things convenient for and manually move handle 52.

As a kind of preferred scheme, cover plate 4 rotates opening and closing around coupling shaft and realizes by barb handle 6.Concrete, barb handle 6 is arranged at a side that is connected with casing 1 of cover plate 4, and utilize its hook end directly or indirectly with cover plate 4 around coupling shaft jack-up, thereby the unlatching of realization cover plate 4; After unclamping barb handle 6, cover plate 4 is because gravity falls, and lid is pressed on the support plate 3, or lid is pressed on the PCB to be tested.

As a kind of preferred scheme, be provided with retracing spring 8 on the barb handle 6, can make things convenient for the falling of cover plate 4.

In order to guarantee that the detector probe on the needle plate 2 accurately contacts with test point on the pcb board to be measured, improve the accuracy of test, below needle plate 2, be fixedly connected with guidepost 7.Accordingly, be formed with the pilot hole (not shown) that cooperates with guidepost 7 on the casing 1.

As a kind of preferred scheme, the below of guidepost 7 is fixedly connected with retracing spring 10.The auxiliary needle plates 2 of retracing spring 10 fall, and the speed that can in the process that needle plate 2 rises, reduce its rising with and the dynamics that contacts with PCB to be measured, thereby can reduce the probability that detector probe and PCB to be measured are damaged.

As a kind of preferred scheme, the PCB measurement jig among the present invention also includes day plate 9.It plate 9 is set in parallel in the top of cover plate 4, and is fixedly connected with cover plate 4.

With reference to Fig. 4, the course of work of PCB measurement jig of the present invention is: at first press down barb handle 6, cover plate 4, a day plate 9 are opened; Then PCB to be tested is put on the support plate 3, adjust the position after, Panasonic's barb handle 6 is pressed in cover plate 4 lid on the PCB to be measured; Next move handle 52, just by cam 51 jack-up upwards, detector probe will extend on the solder joint of PCB to be measured needle plate 2; Last plugged can be tested.

Measurement jig of the present invention uses cam design, and simple in structure, volume is small and exquisite, not only installs, uses, keeps in repair very convenient, and measuring stability is fine.

Need to prove that above-described embodiment does not limit the present invention in any form, all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.

Claims

1. a PCB measurement jig is characterized in that, comprising:

Casing,

The needle plate, support plate, the cover plate that set gradually from bottom to up in the top of above-mentioned casing,

And drive above-mentioned needle plate and do vertical reciprocating driving mechanism;

Above-mentioned support plate is fixedly connected with casing;

Above-mentioned cover plate and casing are rotationally connected.

2. PCB measurement jig according to claim 1 is characterized in that, above-mentioned driving mechanism comprises:

Be arranged at the cam of needle plate below,

The handle that is fixedly connected with above-mentioned cam,

And for the rotating shaft that rotates around it for cam;

Above-mentioned rotating shaft is fixedly connected with casing, is arranged at the junction of cam and handle.

3. PCB measurement jig according to claim 2 is characterized in that, the angle between above-mentioned cam and the handle≤90 degree.

4. PCB measurement jig according to claim 1 is characterized in that, above-mentioned cover plate is by barb handle opening and closing, and above-mentioned barb handle is arranged at a side that is connected with casing of cover plate.

5. PCB measurement jig according to claim 4 is characterized in that, is provided with retracing spring on the above-mentioned barb handle.

6. PCB measurement jig according to claim 1 is characterized in that, above-mentioned needle plate below is fixedly connected with guidepost, and above-mentioned casing is formed with the pilot hole that cooperates with above-mentioned guidepost.

7. PCB measurement jig according to claim 6 is characterized in that, the below of above-mentioned guidepost is fixedly connected with retracing spring.

8. according to claim 1 to the described PCB measurement jig of 7 any one claims, it is characterized in that, also comprise: day plate, above-mentioned day plate is set in parallel in above the cover plate and with cover plate and is fixedly connected with.