CN219871657U

CN219871657U - PCBA function test device

Info

Publication number: CN219871657U
Application number: CN202321051869.XU
Authority: CN
Inventors: 邓军; 罗涛
Original assignee: Chongqing Weijue Technology Co ltd
Current assignee: Chongqing Weijue Technology Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-10-20
Anticipated expiration: 2033-05-05

Abstract

The utility model belongs to the technical field of testing devices, and particularly discloses a PCBA function testing device which comprises a supporting platform, a testing structure, a compressing structure and a positioning structure, wherein the compressing structure and the testing structure are arranged on the supporting platform, the testing structure comprises a testing PCBA and a display mechanism connected with the testing PCBA, the display mechanism is used for displaying a testing result, the testing PCBA is provided with a testing probe corresponding to a testing hole on a tested PCBA board, and the positioning structure comprises a guide column which is arranged on the testing PCBA and corresponds to a positioning hole on the tested PCBA board; the compressing structure is located above the PCBA board to be tested and used for compressing the PCBA board to be tested on the guide post. Positioning structure can realize the location of being surveyed PCBA board, guarantees that the test hole on the PCBA board of being surveyed corresponds with the test probe is accurate, does not need the manual regulation, raises the efficiency.

Description

PCBA function test device

Technical Field

The utility model belongs to the technical field of testing devices, and particularly relates to a PCBA function testing device.

Background

PCBA is a printed circuit board formed after PCB passes through SMT and DIP plug-in. After the PCBA is manufactured, the PCBA needs to be tested, and the content of the test comprises stability, safety, whether functions can be realized or not and the like.

When the existing PCBA board is tested in factories, the excitation is usually provided for the PCBA board manually, and then the output result is tested by a universal meter or an oscilloscope, so that the quality of the PCBA board is judged. However, the manual inspection of PCBA boards in factories is too cumbersome, and requires high levels of labor, which is disadvantageous for industrial mass production of circuit boards.

Aiming at the defects caused by manual detection, the prior patent provides a semi-automatic test fixture (bulletin number is CN 217561650U) for a fixed PCBA board, wherein the output end of a test module is connected with the input end of a processing module, and the output end of the processing module is connected with the input end of a display module; the mounting device comprises a bottom column, a lower die holder, an upper pressing plate and a driving mechanism, wherein the lower die holder is fixedly arranged on the bottom column, the upper pressing plate is arranged right above the lower die holder, the driving mechanism is used for driving the upper pressing plate to vertically lift, a plurality of test ejector pins are arranged on the top wall of the lower die holder and/or the bottom wall of the upper pressing plate, the test ejector pins are in one-to-one correspondence with interfaces on the PCBA board, and the input end and the output end of the test module are respectively connected with the output end and the input end of the PCBA board through the test ejector pins; the test module is used for inputting excitation to the PCBA board and collecting feedback signals of the PCBA board so as to collect the running condition of the PCBA board and obtain the running information of the PCBA board; the processing module is used for receiving the operation information sent by the testing module, and sending a display signal matched with the state of the PCBA board to the display module after determining the state of the PCBA board according to the operation information; the display module is used for receiving the display signal sent by the processing module and displaying a result according to the display signal. The staff watches the display content of the display module, can rapidly judge whether each function of the PCBA board to be tested is good, has low requirements on workers, and greatly improves the inspection efficiency of the PCBA board.

Among the above-mentioned prior art, the PCBA board that awaits measuring is placed on the die holder, and the test thimble on the top board corresponds and realizes the test with the interface on the PCBA board, does not set up location structure on the die holder, therefore the staff is when placing the PCBA board that awaits measuring, and the position of placing of PCBA board that awaits measuring is accurate, just can make the test thimble on the top board insert to the interface on the PCBA board accurately in the in-process of downward movement, therefore can exist and adjust the position of the PCBA board that awaits measuring repeatedly and guarantee the accuracy of position, consequently can lead to detection inefficiency.

Disclosure of Invention

The utility model aims to provide a PCBA function testing device which solves the problem that in the prior art, a positioning structure is not arranged to position a PCBA board to be tested, so that the detection efficiency is low.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the PCBA function testing device comprises a supporting platform, a testing structure, a compressing structure and a positioning structure, wherein the compressing structure and the testing structure are installed on the supporting platform, the testing structure comprises a testing PCBA and a display mechanism connected with the testing PCBA, the display mechanism is used for displaying a testing result, the testing PCBA is provided with a testing probe corresponding to a testing hole on a tested PCBA board, and the positioning structure comprises a guide post which is arranged on the testing PCBA and corresponds to a positioning hole on the tested PCBA board; the compressing structure is located above the PCBA board to be tested and used for compressing the PCBA board to be tested on the guide post.

Further, the guide post includes bottom post and jack-up post, the jack-up post is fixed the bottom post top, the radius of jack-up post is less than the radius of bottom post, be fixed with the spring on the bottom post, the spring cover is established outside the jack-up post, the jack-up post can insert to in the locating hole on the PCBA board that is surveyed.

Further, the compressing structure comprises a driving mechanism, a compressing plate and a compressing piece, wherein the driving mechanism is used for driving the compressing plate to vertically move, the compressing piece is arranged on the compressing plate, and the compressing piece is used for pressing the PCBA board to be tested.

Further, the driving mechanism comprises a supporting plate, a fixing plate, a driving piece and a driving rod, wherein the driving piece is arranged on the fixing plate and is used for driving the driving rod to vertically move, and the lower end of the driving rod is fixed on the compacting plate; the support plate is mounted on the support platform and supports the fixing plate.

Further, the pressing structure further comprises a guide assembly, wherein the guide assembly comprises a first guide unit, the first guide unit is used for guiding the movement of the pressing plate, and the first guide unit comprises a mounting block and a guide rod; the installation block is fixed on the fixed plate, the upper side and the lower side of the guide rod are respectively fixed on the installation block and the supporting platform, a guide hole is formed in the pressing plate, and the guide rod can slide in the guide hole.

Further, the guide assembly includes a second guide unit for guiding the movement of the driving lever; the second guide unit comprises a guide sleeve, the driving rod can slide in the guide sleeve, and the guide sleeve is fixed on the fixed plate.

Further, the driving piece adopts a quick clamp, an air cylinder, an electric push rod or a linear motor.

Further, the display mechanism comprises a voltmeter and a display screen, wherein the voltmeter is used for displaying the voltage of the PCBA to be tested; the display screen is used for displaying the performance data of the tested PCBA.

Further, the test PCBA is connected with the test PCBA.

Further, a switch is included for activating the test PCBA.

The working principle of the technical scheme is as follows: the PCBA board to be tested is placed on the guide post and is guaranteed that the positioning hole is opposite to the guide post, the pressing plate is driven by the driving piece, and the pressing piece on the pressing plate moves downwards to press the PCBA board to be tested, so that the PCBA board to be tested is connected with the test PCBA through the test probe, and then the switch is opened for testing. After the test is completed, the switch is closed, the pressing plate and the pressing piece on the pressing plate are driven by the driving piece to move upwards, so that the tested PCBA board is loosened, and the tested PCBA board is taken down, so that the next use can be performed.

The beneficial effects of this technical scheme lie in:

(1) the utility model can conveniently realize the operations such as detection and the like, and has simple structure.

(2) The positioning structure can realize the positioning of the PCBA to be tested, ensure that the test holes on the PCBA to be tested are accurately corresponding to the test probes, do not need to be adjusted manually, and improve the efficiency.

(3) The guide assembly can guide the pressing plate and the driving piece, and ensure the accuracy of movement of the pressing plate and the pressing piece.

(4) The spring can support the PCBA to be tested, and after the compressing piece loosens the PCBA to be tested, the spring can spring the PCBA to be tested upwards, so that the PCBA to be tested is convenient to take.

Drawings

FIG. 1 is a schematic diagram of a PCBA function test device;

FIG. 2 is a schematic view of the structure of the present utility model when a PCBA board to be tested is mounted;

fig. 3 is a schematic diagram of the structure of the present utility model when detecting a PCBA board under test.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the test device comprises a supporting platform 1, a test PCBA2, a guide post 3, a spring 4, a test probe 5, a compression plate 6, a fixing plate 7, a supporting plate 8, a mounting block 9, a guide rod 10, a linear bearing 11, a quick clamp 12, a driving rod 13, a guide sleeve 14, a compression piece 15, a charger 16, a switch 17, a display screen 18, a voltmeter 19 and a tested PCBA board 20.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment is basically as shown in the accompanying figures 1-3: a PCBA function test device comprises a support platform 1, a test structure, a pressing structure and a positioning structure, wherein the pressing structure and the test structure are installed on the support platform 1. The test structure comprises a test PCBA2 and a display mechanism connected with the test PCBA2, wherein the display mechanism is used for displaying a test result, and the test PCBA2 is provided with test probes 5 corresponding to test holes on the tested PCBA board 20. The positioning structure comprises four guide posts 3 which are arranged on the test PCBA2 and correspond to positioning holes on the tested PCBA board 20, the guide posts 3 are provided with four groups, and the four groups of guide posts 3 are respectively positioned at the four corners of the tested PCBA board 20. The guide column 3 comprises a bottom column and a top column, the top column is fixed above the bottom column, the radius of the top column is smaller than that of the bottom column, a spring 4 is fixed on the bottom column, the spring 4 is sleeved outside the top column, and the top column can be inserted into a positioning hole on the PCBA board 20 to be tested.

The pressing structure is located above the PCBA board 20 to be tested and is used to press the PCBA board 20 to be tested against the guide post 3. The compressing structure comprises a driving mechanism, a compressing plate 6 and a compressing piece 15, wherein the driving mechanism is used for driving the compressing plate 6 to move vertically, the compressing piece 15 is installed on the compressing plate 6, the compressing piece 15 is used for pressing the PCBA 20 to be tested, the compressing piece 15 is provided with 2 groups, and in the embodiment, the compressing piece 15 adopts pins.

The driving mechanism comprises a supporting plate 8, a fixing plate 7, a guide assembly, a driving piece and a driving rod 13, wherein the driving piece is arranged on the fixing plate 7 and is used for driving the driving rod 13 to vertically move, and the driving piece adopts a quick clamp 12, an air cylinder, an electric push rod or a linear motor, and in the embodiment, the quick clamp 12 is adopted. The lower end of the driving rod 13 is fixed on the compacting plate 6; the support plate 8 is mounted on the support platform 1 and supports the fixing plate 7.

The guide assembly comprises a first guide unit and a second guide unit, the first guide unit is provided with two groups, the first guide unit is used for guiding the movement of the compacting plates 6, and the first guide unit comprises a mounting block 9 and a guide rod 10; the installation piece 9 is fixed on fixed plate 7, and the upper and lower both sides of guide bar 10 are fixed respectively on installation piece 9 and supporting platform 1, are equipped with the guiding hole on the pressure strip 6, and guide bar 10 can slide in the guiding hole to still be equipped with linear bearing 11 on the pressure strip 6, guide bar 10 slides in linear bearing 11. The second guide unit is used for guiding the movement of the driving rod 13; the second guide unit comprises a guide sleeve 14, the driving rod 13 can slide in the guide sleeve 14, and the guide sleeve 14 is fixed on the fixed plate 7.

The display mechanism comprises a voltmeter 19 and a display screen 18, wherein the voltmeter 19 is used for displaying the voltage of the PCBA 20 to be tested; the display 18 is used for displaying performance data of the PCBA board 20 to be tested, and the prior art in the background art already discloses that the display 18 displays performance data, and detailed implementation is not repeated. The supporting platform 1 is also provided with a charger 16 and a switch 17 (specifically, a ship-shaped switch 17) which are connected with the test PCBA2, and the switch 17 is used for starting the test PCBA2.

The specific implementation process is as follows:

the PCBA 20 to be tested is placed on the guide post 3, the positioning hole is guaranteed to be opposite to the guide post 3, the pressing plate 6 and the pressing piece 15 on the pressing plate 6 are driven by the driving piece to move downwards to press the PCBA 20 to be tested, so that the PCBA 20 to be tested is connected with the PCBA2 to be tested through the test probe 5, and then the switch 17 is opened for testing. After the test is completed, the switch 17 is turned off, the pressing plate 6 and the pressing piece 15 on the pressing plate 6 are driven by the driving piece to move upwards, so that the tested PCBA board 20 is loosened, and the tested PCBA board 20 is taken down, so that the next use can be performed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present utility model, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. A PCBA function test device, its characterized in that: the test structure comprises a test PCBA (2) and a display mechanism connected with the test PCBA (2), wherein the test PCBA (2) is provided with a test probe (5) corresponding to a test hole on a tested PCBA board (20), and the positioning structure comprises a guide post (3) arranged on the test PCBA (2) and corresponding to a positioning hole on the tested PCBA board (20); the pressing structure is located above the PCBA board (20) to be tested and used for pressing the PCBA board (20) to be tested on the guide column (3).

2. A PCBA function test device as defined in claim 1, wherein: the guide post (3) comprises a bottom post and a top post, the top post is fixed above the bottom post, the radius of the top post is smaller than that of the bottom post, a spring (4) is fixed on the bottom post, the spring (4) is sleeved outside the top post, and the top post can be inserted into a positioning hole on the PCBA board (20) to be tested.

3. A PCBA function test device as defined in claim 1, wherein: the compressing structure comprises a driving mechanism, a compressing plate (6) and a compressing piece (15), wherein the driving mechanism is used for driving the compressing plate (6) to vertically move, the compressing piece (15) is installed on the compressing plate (6), and the compressing piece (15) is used for pressing the measured PCBA board (20).

4. A PCBA function test device according to claim 3, characterized in that: the driving mechanism comprises a supporting plate (8), a fixed plate (7), a driving piece and a driving rod (13), wherein the driving piece is arranged on the fixed plate (7) and is used for driving the driving rod (13) to vertically move, and the lower end of the driving rod (13) is fixed on the compacting plate (6); the supporting plate (8) is arranged on the supporting platform (1) and supports the fixing plate (7).

5. The PCBA function test device according to claim 4, wherein: the pressing structure further comprises a guide assembly, wherein the guide assembly comprises a first guide unit, the first guide unit is used for guiding the movement of the pressing plate (6), and the first guide unit comprises a mounting block (9) and a guide rod (10); the mounting block (9) is fixed on the fixing plate (7), the upper side and the lower side of the guide rod (10) are respectively fixed on the mounting block (9) and the supporting platform (1), a guide hole is formed in the pressing plate (6), and the guide rod (10) can slide in the guide hole.

6. The PCBA function test device according to claim 5, wherein: the guide assembly comprises a second guide unit for guiding the movement of the drive rod (13); the second guiding unit comprises a guiding sleeve (14), the driving rod (13) can slide in the guiding sleeve (14), and the guiding sleeve (14) is fixed on the fixed plate (7).

7. The PCBA function test device according to claim 4, wherein: the driving piece adopts a quick clamp (12), an air cylinder, an electric push rod or a linear motor.

8. A PCBA function test device as defined in claim 1, wherein: the display mechanism comprises a voltmeter (19) and a display screen (18), wherein the voltmeter (19) is used for displaying the voltage of the PCBA board (20) to be tested; the display screen (18) is used for displaying performance data of the PCBA board (20) to be tested.

9. A PCBA function test device as defined in claim 1, wherein: the test PCBA (2) further comprises a charger (16), and the charger (16) is connected with the test PCBA (2).

10. A PCBA function test device as recited in claim 9, wherein: a switch (17) is also included, the switch (17) being for activating the test PCBA (2).