CN114047052A

CN114047052A - A testing arrangement for PCB circuit board

Info

Publication number: CN114047052A
Application number: CN202111203971.2A
Authority: CN
Inventors: 王亚洲; 刘维; 李秀娟; 徐海峰
Original assignee: Guangde Wang Intelligent Circuit Technology Co ltd
Current assignee: Guangde Wang Intelligent Circuit Technology Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-02-15
Anticipated expiration: 2041-10-15
Also published as: CN114047052B

Abstract

The invention discloses a testing device for a PCB (printed circuit board), which belongs to the technical field of circuit board testing and comprises a testing frame, wherein a first threaded rod is longitudinally arranged in the testing frame, slide bars are symmetrically arranged on two sides of the first threaded rod, a slide block is in threaded fit with the first threaded rod, the slide block is in sliding connection with the two slide bars, a first gear is arranged at the top end of the first threaded rod, a first driving motor is arranged on the inner wall of the top end of the testing frame, a second gear meshed with the first gear is arranged at the output end of the first driving motor, a first controller is arranged at the top end of the testing frame, a pressure plate is arranged at the bottom end of the first driving motor, an inductor electrically connected with the first controller is arranged on the pressure plate, a supporting mechanism for fixing the circuit board is arranged at one end of the slide block, and a testing mechanism is arranged at the other end of the slide block; the invention integrates the three tests into a whole through simple structure, reduces the cost of manufacturing materials, tests the circuit board on the same test device, and is greatly convenient for test personnel to use.

Description

A testing arrangement for PCB circuit board

Technical Field

The invention belongs to the technical field of circuit board testing, and particularly relates to a testing device for a PCB (printed circuit board).

Background

A circuit board, also called a printed circuit board, is one of important components in the electronic industry, is a support for electronic components, and is a carrier for electrical interconnection of electronic components. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. At present, printed circuit boards are widely used in the production and manufacture of electronic products.

After the circuit board is accomplished in the preparation, in order to guarantee the yield of circuit board, often all need test, for example pressure test, anti falling test, temperature resistant test etc. for this reason, the producer can develop corresponding test fixture to different circuit boards, and these test fixtures all set up separately alone, set up test fixture alone not only influence the efficiency of test, but also can increase the output of preparation material.

Disclosure of Invention

In view of the shortcomings in the prior art, the present invention is directed to a testing device for PCB circuit board, which solves the above problems in the prior art.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a testing arrangement for PCB circuit board, includes the test jig, vertically be equipped with first threaded rod in the test jig, the bilateral symmetry of first threaded rod is equipped with the slide bar, screw-thread fit has the slider on the first threaded rod, slider and two slide bar sliding connection, the top of first threaded rod is equipped with first gear, be equipped with a driving motor on the top inner wall of test jig, a driving motor's output is equipped with the second gear with first gear engagement, the top of test jig is equipped with first controller, a driving motor's bottom is equipped with the pressure plate, be equipped with the inductor with first controller electric connection on the pressure plate, one of slider is served and is equipped with the supporting mechanism who is used for fixed circuit board, be equipped with accredited testing organization on the other end of slider.

Further, the supporting mechanism comprises a supporting plate, a sliding groove is formed in the supporting plate, a rotating column is arranged in the sliding groove, a second driving motor is arranged at one end of the rotating column, two first threads and two second threads which are opposite in thread direction are symmetrically arranged on the rotating column, a first sliding column and a second sliding column are respectively matched on the first threads and the second threads, and fixing mechanisms are arranged at the top ends of the first sliding column and the second sliding column.

Furthermore, the fixed mechanism comprises a fixed plate in contact with the first sliding column and the second sliding column, a semi-cavity is arranged in the fixed plate, a sliding plate is arranged in the semi-cavity, a plurality of fixed grooves are formed in the sliding plate, a second threaded rod is arranged on one side of the semi-cavity, one side of the second threaded rod is connected with the side wall of the sliding plate, and the other end of the second threaded rod is connected with a rotating handle.

Furthermore, magnetic strips with opposite magnetism are arranged on the opposite sides of the two fixing plates.

Further, the testing mechanism comprises a mounting plate connected with the sliding block, two heaters are symmetrically arranged on the mounting plate, a second controller is electrically connected between the heaters, a telescopic pipe is further arranged on each heater, and a spray head is arranged on each telescopic pipe.

Furthermore, the top of pressure plate is equipped with the connecting block of being connected with first driving motor, the bilateral symmetry of connecting block is equipped with automatically controlled telescopic link, the fluting that some were seted up to the both sides that lie in the connecting block on the pressure plate, be equipped with the connecting plate in the fluting, the top of connecting plate is connected with automatically controlled telescopic link's output, the bottom of connecting plate is equipped with splint.

Furthermore, anti-skidding soft pads are arranged on the opposite surfaces of the two clamping plates.

The invention has the beneficial effects that:

the invention has simple structure, integrates the three tests into a whole, reduces the cost of manufacturing materials, tests the circuit board on the same test device, and is greatly convenient for test personnel to use; meanwhile, through the matching of two opposite threads on the rotating column of the supporting mechanism and the sliding column, the supporting area can be increased, and the circuit boards with different sizes and volumes can be conveniently tested.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the support mechanism;

FIG. 3 is a schematic view of a portion of the structure on the support plate;

FIG. 4 is a schematic structural view of the securing mechanism;

FIG. 5 is a schematic structural view of a testing mechanism;

fig. 6 is a schematic view of the structure on the pressure plate.

The reference numbers in the figures illustrate:

1. a test jig; 2. a first threaded rod; 3. a slide bar; 4. a slider; 5. a first drive motor; 6. a first controller; 7. a pressure plate; 8. an inductor; 9. a support mechanism; 10. a testing mechanism; 11. a support plate; 12. a chute; 13. rotating the column; 14. a second drive motor; 15. a first thread; 16. a second thread; 17. a first traveler; 18. a second strut; 19. a fixing mechanism; 20. a fixing plate; 21. a half cavity; 22. a sliding plate; 23. fixing grooves; 24. turning the hand; 25. a magnetic strip; 26. mounting a plate; 27. a heater; 28. a second controller; 29. a telescopic pipe; 30. a spray head; 31. connecting blocks; 32. an electric control telescopic rod; 33. grooving; 34. a connecting plate; 35. a splint; 36. an anti-slip soft cushion; 37. a second threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

A testing device for a PCB (printed Circuit Board) circuit board is disclosed, as shown in figures 1 and 6, and comprises a testing frame 1, wherein a first threaded rod 2 is longitudinally arranged in the testing frame 1, slide rods 3 are symmetrically arranged on two sides of the first threaded rod 2, a slide block 4 is in threaded fit on the first threaded rod 2, the slide block 4 is in sliding connection with the two slide rods 3, a first gear is arranged at the top end of the first threaded rod 2, a first driving motor 5 is arranged on the inner wall of the top end of the testing frame 1, a second gear meshed with the first gear is arranged at the output end of the first driving motor 5, a first controller 6 is arranged at the top end of the testing frame 1, a pressure plate 7 is arranged at the bottom end of the first driving motor 5, an inductor 8 electrically connected with the first controller 6 is arranged on the pressure plate 7, a supporting mechanism 9 for fixing the circuit board is arranged at one end of the slide block 4, a testing mechanism 10 is arranged at the other end of the slide block 4, the first threaded rod 2 is driven to rotate by the first driving motor 5, can drive supporting mechanism 9 and reciprocate, need to detect when anti experiment of falling, the farthest that pressure plate 7 and supporting mechanism 9 leave, anti experiment of falling is fallen, when needs pressure test, it is close to say pressure plate 7 and supporting mechanism 9, carry out pressure test, the top of pressure plate 7 is equipped with the connecting block 31 of being connected with first driving motor 5, the bilateral symmetry of connecting block 31 is equipped with automatically controlled telescopic link 32, the fluting 33 that some were seted up to the both sides that lie in connecting block 31 on the pressure plate 7, be equipped with connecting plate 34 in the fluting 33, the top of connecting plate 34 is connected with the output of automatically controlled telescopic link 32, the bottom of connecting plate 34 is equipped with splint 35, the opposite face of two splint 35 is equipped with anti-skidding cushion 36, the position of two adjustable splint 35 of automatically controlled telescopic link 32, the convenience is to the circuit board centre gripping of equidimension not, the injury to the circuit board when anti-skidding cushion 36 reduces the centre gripping.

As shown in fig. 2-5, the supporting mechanism 9 includes a supporting plate 11, the supporting plate 11 is provided with a sliding slot 12, the sliding slot 12 is provided with a rotating column 13, one end of the rotating column 13 is provided with a second driving motor 14, the rotating column 13 is symmetrically provided with two first threads 15 and second threads 16 with opposite thread directions, the first threads 15 and the second threads 16 are respectively matched with a first sliding column 17 and a second sliding column 18, the top ends of the first sliding column 17 and the second sliding column 18 are respectively provided with a fixing mechanism 19, the rotating column 13 is driven to rotate by the second driving motor 14, the distance between the two fixing mechanisms 19 can be adjusted through the matching of the threads and the sliding columns, so as to adjust the supporting area, and support the circuit boards with different sizes, the fixing mechanism 19 includes a fixing plate 20 contacting with the first sliding column 17 and the second sliding column 18, a half cavity 21 is provided in the fixing plate 20, a sliding plate 22 is provided in the half cavity 21, the sliding plate 22 is provided with a plurality of fixed grooves 23, one side of the semi-cavity 21 is provided with a second threaded rod 37, one side of the second threaded rod 37 is connected with the side wall of the sliding plate 22, the other end of the second threaded rod 37 is connected with a rotating handle 24, the mutually opposite sides of the two fixed plates 20 are provided with magnetic stripes 25 with opposite magnetism, the two fixed plates 20 can be attached together by the magnetic stripes 25, the pressure test is convenient, the testing mechanism 10 comprises a mounting plate 26 connected with the sliding block 4, the mounting plate 26 is symmetrically provided with two heaters 27, a second controller 28 is electrically connected between the heaters 27, the heaters 27 are also provided with telescopic pipes 29, the telescopic pipes 29 are provided with spray heads 30, the arranged sliding plate 22 can be retracted in the semi-cavity 21 through the rotation of the second threaded rod 37, the fixed grooves 23 are used for fixing a circuit board during the temperature test, and the arranged telescopic pipes 29 are convenient for adjusting the distance between the spray heads 30 and the circuit board, the test is convenient.

When the testing device is used, different operations can be carried out, when the pressure resistance of a circuit board needs to be tested, the supporting mechanism 9 is driven to move by the first driving motor 5, the supporting mechanism 9 is moved to the position near the pressure plate 7, then the second threaded rod 37 on the fixing mechanism 19 is twisted, the sliding plate 22 is accommodated in the half cavity 21, the two fixing plates 20 are connected, the electric control telescopic rod 32 on the pressure plate 7 stretches, the two clamping plates 35 are pushed to the position where the pressure test is not affected, the circuit board is placed on the spliced fixing plates 20 at the moment, the supporting mechanism 9 is slowly moved upwards, the pressure plate 7 is attached to the circuit board, the generated pressure is transmitted to the first controller 6 through the inductor 8, the recording is carried out, and the observation is convenient; when the anti-falling performance of the circuit board needs to be tested, the distance between the supporting mechanism 9 and the pressure plate 7 is adjusted through the rotation of the first threaded rod 2, the distance can be adjusted according to the height to be tested, then the electric control telescopic rod 32 on the pressure plate 7 contracts, the positions of the two clamping plates 35 are adjusted, the circuit board is clamped and fixed, then the clamping plates 35 are slowly loosened, and the anti-falling experiment test is carried out; when a high-temperature resistant experiment of the circuit board needs to be tested, the two fixing plates 20 are separated, the second threaded rod 37 is rotated, the sliding plate 22 slides out of the half cavity 21, then the circuit board is erected and fixed on the fixing groove 23, the spray head 30 on the extension tube 29 is close to the circuit board, the second controller 28 controls the temperature of the heater 27 in real time, the spray head 30 sprays different temperatures, and the temperature resistant test is carried out on the circuit board.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A testing device for a PCB (printed circuit board) comprises a testing frame (1) and is characterized in that a first threaded rod (2) is longitudinally arranged in the testing frame (1), sliding rods (3) are symmetrically arranged on two sides of the first threaded rod (2), a sliding block (4) is matched with the first threaded rod (2) in a threaded manner, the sliding block (4) is connected with the two sliding rods (3) in a sliding manner, a first gear is arranged at the top end of the first threaded rod (2), a first driving motor (5) is arranged on the inner wall of the top end of the testing frame (1), a second gear meshed with the first gear is arranged at the output end of the first driving motor (5), a first controller (6) is arranged at the top end of the testing frame (1), a pressure plate (7) is arranged at the bottom end of the first driving motor (5), and an inductor (8) electrically connected with the first controller (6) is arranged on the pressure plate (7), one end of the sliding block (4) is provided with a supporting mechanism (9) for fixing the circuit board, and the other end of the sliding block (4) is provided with a testing mechanism (10).

2. The PCB testing device according to claim 1, wherein the supporting mechanism (9) comprises a supporting plate (11), a sliding groove (12) is formed in the supporting plate (11), a rotating column (13) is arranged in the sliding groove (12), a second driving motor (14) is arranged at one end of the rotating column (13), two first threads (15) and two second threads (16) with opposite thread directions are symmetrically arranged on the rotating column (13), a first sliding column (17) and a second sliding column (18) are respectively matched on the first threads (15) and the second threads (16), and fixing mechanisms (19) are arranged at the top ends of the first sliding column (17) and the second sliding column (18).

3. The PCB testing device according to claim 2, wherein the fixing mechanism (19) comprises a fixing plate (20) contacting with the first sliding column (17) and the second sliding column (18), a half-cavity (21) is arranged in the fixing plate (20), a sliding plate (22) is arranged in the half-cavity (21), a plurality of fixing grooves (23) are arranged on the sliding plate (22), a second threaded rod (37) is arranged on one side of the half-cavity (21), one side of the second threaded rod (37) is connected with the side wall of the sliding plate (22), and a rotating handle (24) is connected to the other end of the second threaded rod (37).

4. A testing device for PCB circuit boards according to claim 2, wherein the two fixing plates (20) are provided with magnetic strips (25) of opposite magnetic properties on mutually opposite sides.

5. The PCB testing device according to claim 1, wherein the testing mechanism (10) comprises a mounting plate (26) connected with the slider (4), two heaters (27) are symmetrically arranged on the mounting plate (26), a second controller (28) is electrically connected between the heaters (27), a telescopic pipe (29) is further arranged on each heater (27), and a spray head (30) is arranged on each telescopic pipe (29).

6. The testing device for the PCB as claimed in claim 1, wherein a connecting block (31) connected with the first driving motor (5) is arranged at the top end of the pressure plate (7), electrically controlled telescopic rods (32) are symmetrically arranged at both sides of the connecting block (31), slots (33) are formed in the pressure plate (7) and located at both sides of the connecting block (31), a connecting plate (34) is arranged in the slots (33), the top end of the connecting plate (34) is connected with the output end of the electrically controlled telescopic rods (32), and a clamping plate (35) is arranged at the bottom end of the connecting plate (34).

7. A testing device for PCB circuit boards according to claim 6 characterized in that the opposite faces of the two clamping plates (35) are provided with anti-slip soft pads (36).