CN213517437U

CN213517437U - Mixed-voltage circuit board electrical property detection device

Info

Publication number: CN213517437U
Application number: CN202022620521.0U
Authority: CN
Inventors: 刘钰飞
Original assignee: SICHUAN SHENBEI CIRCUIT TECHNOLOGY CO LTD
Current assignee: SICHUAN SHENBEI CIRCUIT TECHNOLOGY CO LTD
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-06-22
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a mix and press circuit board electrical property detection device, the bottom of workstation (4) has set firmly lift cylinder (13), the piston rod of lift cylinder (13) runs through workstation (4) setting, and the effect of piston rod is served and has set firmly fly leaf (14), a plurality of square groove (15) that correspond from top to bottom with solder joint (3) have been seted up on fly leaf (14), slidable mounting has insulating tube (16) in square groove (15), the upper end of insulating tube (16) has set firmly fixed plate (17), the cover is equipped with spring (12) on insulating tube (16), insulating tube (16) internal stability has test head (11), insulating tube (16) setting is all run through at the both ends of test head (11), the top of each test head (11) is all connected through wire (18) and electrical property tester (10) electricity. The utility model has the advantages that: compact structure, thorough detection, improved detection precision and simple operation.

Description

Mixed-voltage circuit board electrical property detection device

Technical Field

The utility model relates to a technical field that mixes the detection of piezo-electric property board, especially a mix piezo-electric property board detection device.

Background

The mixed-voltage circuit board is a special circuit board with higher electromagnetic frequency, generally speaking, the high frequency can be defined as the frequency above 1ghz, and the requirements of various physical properties, precision and technical parameters are very high, so that the mixed-voltage circuit board is commonly used in the fields of automobile anti-collision systems, satellite systems, radio systems and the like.

As shown in fig. 1-2, the structure of the mixed-voltage circuit board is schematically illustrated, the mixed-voltage circuit board includes a substrate 1 and electronic components such as capacitors and batteries soldered on the bottom surface of the substrate 1, the legs of each electronic component 2 are soldered to the substrate 1 to form solder joints 3, and the solder joints 3 are located on the top surface of the substrate 1. Need adopt as shown in fig. 3 electrical property detection device to detect solder joint 3's electrical property, this electrical property detection device includes workstation 4, set firmly plummer 5 on workstation 4, recess 6 has been seted up at plummer 5's top, the outline of recess 6 equals with the outline of muddy pressure circuit board, holding tank 7 has been seted up to recess 6's bottom, workstation 4's top has set firmly two guide posts 8, the cover is equipped with lifter plate 9 between the guide post 8, electrical property tester 10 is installed at lifter plate 9's top, electrical property tester 10's bottom is connected with a plurality of test heads 11 that correspond from top to bottom with solder joint 3, test head 11 runs through lifter plate 9 setting downwards, the cover is equipped with spring 12 on the guide post 8, the one end of spring 12 sets firmly on workstation 4, the other end sets firmly on lifter plate 9. After the welding of the electronic element 2 is finished, the substrate 1 is placed in the groove 6, the electronic element 2 is placed in the accommodating groove 7, then the lifting plate 9 is pressed downwards, the lifting plate 9 drives the testing heads 11 to move downwards, after the testing heads move downwards for a certain distance, the testing heads 11 just contact the corresponding welding spots 3, the resistance values of the welding spots 3 are read out on the electrical property tester 10, and the detection of the electrical property of the mixed-compression circuit board is realized.

However, although this testing method can test the electrical performance of the mixed-voltage circuit board, the following defects still exist: the height of each solder joint 3 is different, and some solder joints 3 are higher and have a dot solder joint 3 height lower promptly, and the bottom of test head 11 all is in same surface of water line, leads to higher solder joint 3 to contact the back rather than the test head 11 that corresponds earlier, and the lower solder joint 3 of height does not contact the test head 11 rather than corresponding, and then leads to detecting thoroughly, has the defect that detects the precision is low. Therefore, there is a need for a device for detecting electrical properties of a mixed-voltage circuit board, which can detect completely and improve detection accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, detect thoroughly, improve detection precision, easy operation's mixed compression circuit board electrical property detection device.

The purpose of the utility model is realized through the following technical scheme: an electrical property detection device of a mixed-compression circuit board comprises a workbench and a bearing table fixedly arranged on the workbench, wherein the top of the bearing table is provided with a groove, the outline of the groove is equal to the outline of the mixed-compression circuit board, the bottom of the groove is provided with a holding groove, a lifting cylinder is fixedly arranged at the bottom of the workbench, a piston rod of the lifting cylinder penetrates through the workbench, and the effect of piston rod is served and has been set firmly the fly leaf, set up a plurality of square grooves that correspond from top to bottom with the solder joint on the fly leaf, slidable mounting has the insulating tube in the square groove, the square groove setting all runs through at the both ends of insulating tube, the upper end of insulating tube has set firmly the fixed plate, the cover is equipped with the spring on the insulating tube, the one end of spring sets firmly on the basal surface of fixed plate, the other end sets firmly on the top surface of fly leaf, the insulating tube has set firmly the test head, the insulating tube setting is all run through at the both ends of test head, the top of each test head is all connected through wire and.

The electrical property tester is disposed on a top surface of the stage.

The bottom of workstation sets firmly has many supporting legs.

The workbench is provided with a through groove communicated with the accommodating groove.

The top of workstation sets firmly has the stand, seted up the guiding hole on the fly leaf, the fly leaf is located on the stand through the guiding hole cover.

The fixed plate is an insulating plate.

The test head is in interference fit with the insulating tube.

The utility model has the advantages of it is following: the utility model discloses compact structure, detection are thorough, improve detection precision, easy operation.

Drawings

FIG. 1 is a schematic structural diagram of a mixed-voltage circuit board;

FIG. 2 is a top view of FIG. 2;

fig. 3 is a schematic structural view of a conventional electrical property detection apparatus;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a schematic cross-sectional view A-A of FIG. 4;

fig. 6 is a schematic structural view of the middle movable plate of the present invention;

FIG. 7 is a schematic view of the present invention;

in the figure, 1-substrate, 2-electronic component, 3-welding point, 4-workbench, 5-bearing table, 6-groove, 7-holding groove, 8-guiding column, 9-lifting plate, 10-electrical property tester, 11-testing head, 12-spring, 13-lifting cylinder, 14-moving plate, 15-square groove, 16-insulating tube, 17-fixing plate, 18-wire, 19-through groove, 20-column, 21-guiding hole.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 4 to 7, an electrical property detection device for a mixed-voltage circuit board comprises a workbench 4, a carrier table 5 fixed on the workbench 4, a groove 6 formed at the top of the carrier table 5, the outer contour of the groove 6 being equal to the outer contour of the mixed-voltage circuit board, a receiving groove 7 formed at the bottom of the groove 6, a lifting cylinder 13 fixed at the bottom of the workbench 4, a piston rod of the lifting cylinder 13 penetrating the workbench 4, a movable plate 14 fixed at the acting end of the piston rod, a plurality of square grooves 15 corresponding to the upper and lower parts of a solder joint 3 formed on the movable plate 14, an insulating tube 16 slidably installed in the square grooves 15, two ends of the insulating tube 16 penetrating the square grooves 15, a fixed plate 17 fixed at the upper end of the insulating tube 16, the fixed plate 17 being an insulating plate, a spring 12 sleeved on the insulating tube 16, one end of the spring 12 fixed on the bottom surface of the fixed plate 17, and the other end fixed, the insulation tube 16 is internally and fixedly provided with the test head 11, the test head 11 is in interference fit with the insulation tube 16, two ends of the test head 11 penetrate through the insulation tube 16, and the top of each test head 11 is electrically connected with the electrical property tester 10 through the lead 18.

The electrical property tester 10 is disposed on the top surface of the table 4. The bottom of the working table 4 is fixedly provided with a plurality of supporting legs. And a through groove 19 communicated with the accommodating groove 7 is formed in the workbench 4. The top of the working table 4 is fixedly provided with a column 20, the movable plate 14 is provided with a guide hole 21, and the movable plate 14 is sleeved on the column 20 through the guide hole 21.

The working process of the utility model is as follows:

after the welding of the electronic component 2 is finished, the substrate 1 is firstly placed in the groove 6, the electronic component 2 is placed in the accommodating groove 7, then the lifting cylinder 13 is operated to retract the piston rod of the lifting cylinder, the piston rod drives the movable plate 14 to move downwards along the upright post 20, the movable plate 14 drives each test head 11 to simultaneously move downwards, after the movable plate 14 moves downwards for a certain distance, each test head 11 is contacted with the corresponding welding point 3, and at the moment, the resistance value of the welding point 3 is read out on the electrical property tester 10, so that the detection of the electrical property of the mixed compression circuit board is realized. When all the test heads 11 move downwards, the higher solder joints 3 contact the corresponding test heads 11 first, after the contact, the test heads 11 and the corresponding insulating tubes 16 are all stationary, and the movable plate 14 continues to move downwards relative to the stationary insulating tubes 16 until other test heads 11 contact the lower solder joints 3, so that all the solder joints 3 with different heights can contact the test heads 11, the detection is more thorough, and the detection precision is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 utility model provides a mix and press circuit board electrical property detection device, it includes workstation (4), set firmly plummer (5) on workstation (4), and recess (6) are seted up at the top of plummer (5), and the outline of recess (6) equals with the outline of mixing and pressing the circuit board, and holding tank (7), its characterized in that have been seted up to the bottom of recess (6): a lifting cylinder (13) is fixedly arranged at the bottom of the workbench (4), a piston rod of the lifting cylinder (13) penetrates through the workbench (4), and the acting end of the piston rod is fixedly provided with a movable plate (14), the movable plate (14) is provided with a plurality of square grooves (15) which vertically correspond to the welding spots (3), an insulating tube (16) is arranged in each square groove (15) in a sliding manner, two ends of the insulating tube (16) are arranged by penetrating through the square grooves (15), the upper end part of the insulating tube (16) is fixedly provided with a fixed plate (17), the insulating tube (16) is sleeved with a spring (12), one end of the spring (12) is fixedly arranged on the bottom surface of the fixed plate (17), the other end of the spring (12) is fixedly arranged on the top surface of the movable plate (14), a test head (11) is fixedly arranged in the insulating tube (16), two ends of the test head (11) are arranged by penetrating through the insulating tube (16), and the top of each test head (11) is electrically connected with an.

2. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: the electrical property tester (10) is disposed on a top surface of the table (4).

3. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: the bottom of workstation (4) sets firmly many supporting legs.

4. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: and a through groove (19) communicated with the accommodating groove (7) is formed in the workbench (4).

5. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: the top of the workbench (4) is fixedly provided with an upright post (20), the movable plate (14) is provided with a guide hole (21), and the movable plate (14) is sleeved on the upright post (20) through the guide hole (21).

6. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: the fixed plate (17) is an insulating plate.

7. The electrical performance testing apparatus of a hybrid circuit board as claimed in claim 1, wherein: the test head (11) is in interference fit with the insulating tube (16).