CN114047052B

CN114047052B - Testing device for PCB

Info

Publication number: CN114047052B
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: 2023-10-20
Anticipated expiration: 2041-10-15
Also published as: CN114047052A

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, sliding rods are symmetrically arranged on two sides of the first threaded rod, a sliding block is in threaded fit with the first threaded rod, the sliding block is in sliding connection with the two sliding rods, 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 sliding block, and a testing mechanism is arranged at the other end of the sliding block; the invention combines three tests into a whole through simple structure, reduces the cost of manufacturing materials, and greatly facilitates the use of testers by testing the circuit board on the same testing device.

Description

Testing device for PCB

Technical Field

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

Background

A circuit board, also called a printed wiring board, is one of the important parts of the electronic industry, is a support for electronic components, and is a carrier for electrically interconnecting the electronic components. The wiring device can replace complex wiring, realizes electric connection among elements in a circuit, simplifies assembly and welding work of electronic products, reduces wiring workload in a traditional mode, and greatly lightens labor intensity of workers; and the whole volume is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. At present, the printed wiring board has been extremely widely applied to the production and manufacture of electronic products.

After the circuit board is manufactured, in order to ensure the yield of the circuit board, the circuit board is often required to be tested, such as pressure test, anti-falling test, temperature resistance test and the like, therefore, manufacturers can develop corresponding test jigs aiming at different circuit boards, the test jigs are separately and independently arranged, the test jigs are independently arranged, the test efficiency is affected, and the output of manufacturing materials is increased.

Disclosure of Invention

In view of the shortcomings of the prior art, an objective of the present invention is to provide a testing device for a PCB, which is used for solving the problems faced in the above-mentioned background art.

The aim of the invention can be achieved by the following technical scheme:

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

Further, supporting mechanism includes the backup pad, the spout has been seted up in the backup pad, be equipped with the spliced pole in the spout, the one end of spliced pole is equipped with second driving motor, the symmetry is equipped with two screw thread opposite first screw threads and second screw threads on the spliced pole, it has first traveller and second traveller to cooperate respectively on first screw thread and the second screw thread, the top of first traveller and second traveller all is equipped with fixed establishment.

Further, the fixed establishment includes the fixed plate with first traveller, second traveller contact, be equipped with half cavity in the fixed plate, be equipped with the sliding plate in the half cavity, be equipped with a plurality of fixed slot on the sliding plate, one side of half cavity is equipped with the second threaded rod, one side of second threaded rod is connected with the lateral wall of sliding plate, the other end of second threaded rod is connected with the turning hand.

Further, magnetic strips with opposite magnetism are arranged on the mutually 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 the heaters, and a spray head is arranged on the telescopic pipe.

Further, 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 is located the both sides of connecting block on the pressure plate was seted up, be equipped with the connecting plate in the fluting, the top and the output of automatically controlled telescopic link of connecting plate are connected, the bottom of connecting plate is equipped with splint.

Further, anti-slip soft cushions are arranged on opposite faces of the two clamping plates.

The invention has the beneficial effects that:

the invention has simple structure, integrates three tests, reduces the cost of manufacturing materials, tests the circuit board on the same testing device, and is greatly convenient for testing staff to use; meanwhile, through the cooperation 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 of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

FIG. 1 is a schematic diagram of the structure of the present invention;

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

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

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

FIG. 5 is a schematic structural view of the test mechanism;

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

The reference numerals in the figures illustrate:

1. a test rack; 2. a first threaded rod; 3. a slide bar; 4. a slide block; 5. a first driving 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 driving motor; 15. a first thread; 16. a second thread; 17. a first strut; 18. a second strut; 19. a fixing mechanism; 20. a fixing plate; 21. a half cavity; 22. a sliding plate; 23. a fixing groove; 24. turning hands; 25. a magnetic stripe; 26. a mounting plate; 27. a heater; 28. a second controller; 29. a telescopic tube; 30. a spray head; 31. a connecting block; 32. an electric control telescopic rod; 33. slotting; 34. a connecting plate; 35. a clamping plate; 36. an anti-slip soft pad; 37. and a second threaded rod.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

A testing device for a PCB circuit board is 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, sliding rods 3 are symmetrically arranged on two sides of the first threaded rod 2, a sliding block 4 is in threaded fit with the first threaded rod 2, the sliding block 4 is in sliding connection with the two sliding 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 sliding block 4, a testing mechanism 10 is arranged at the other end of the sliding block 4, the first threaded rod 2 is driven by the first driving motor 5 to rotate, the supporting mechanism 9 can be driven to move up and down, when the anti-falling experiment is required to be detected, the pressure plate 7 and the supporting mechanism 9 are furthest apart, the anti-falling experiment is performed, when the pressure test is required, the pressure plate 7 and the supporting mechanism 9 are close to each other, the pressure test is performed, the top end of the pressure plate 7 is provided with the connecting block 31 connected with the first driving motor 5, the two sides of the connecting block 31 are symmetrically provided with the electric control telescopic rods 32, the pressure plate 7 is provided with the grooves 33 which are arranged on the two sides of the connecting block 31, the grooves 33 are internally provided with the connecting plates 34, the top ends of the connecting plates 34 are connected with the output ends of the electric control telescopic rods 32, the bottom ends of the connecting plates 34 are provided with the clamping plates 35, the opposite faces of the two clamping plates 35 are provided with anti-sliding cushions 36, the electric control telescopic rods 32 can adjust the positions of the two clamping plates 35, so that circuit boards with different sizes can be conveniently clamped, the anti-slip cushion 36 reduces damage to the circuit board during clamping.

As shown in fig. 2-5, the supporting mechanism 9 comprises a supporting plate 11, a sliding groove 12 is arranged on 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 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 with the first threads 15 and the second threads 16, fixing mechanisms 19 are respectively arranged at the top ends of the first sliding column 17 and the second sliding column 18, 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 by matching the threads with the sliding columns, so that supporting areas can be adjusted, circuit boards with different sizes are supported, the fixing mechanisms 19 comprise fixing plates 20 contacted with the first sliding column 17 and the second sliding column 18, half cavities 21 are arranged in the fixing plates 20, the half cavity 21 is internally provided with a sliding plate 22, a plurality of fixed grooves 23 are arranged on the sliding plate 22, one side of the half 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 hand 24, the mutually opposite sides of the two fixed plates 20 are provided with magnetic strips 25 with opposite magnetism, the magnetic strips 25 can enable the two fixed plates 20 to be attached together, the pressure test is convenient, the test mechanism 10 comprises a mounting plate 26 connected with the sliding block 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 also arranged on the heaters 27, a spray head 30 is arranged on the telescopic pipe 29, the arranged sliding plate 22 can be accommodated in the half cavity 21 through the rotation of the second threaded rod 37, the fixed grooves 23 are convenient to use in the temperature test, the telescopic tube 29 is convenient for adjusting the distance between the spray head 30 and the circuit board, and is convenient for testing.

When the testing device is used, different operations can be performed, when the pressure resistance of a circuit board is required to be tested, the first driving motor 5 drives the supporting mechanism 9 to move, the supporting mechanism 9 is moved to the vicinity of the pressure board 7, then the second threaded rod 37 on the fixing mechanism 19 is twisted, the sliding plate 22 is retracted into the half cavity 21, the two fixing boards 20 are connected, the electric control telescopic rod 32 on the pressure board 7 stretches and contracts, the two clamping plates 35 are propped against to a position which does not affect the pressure test, the circuit board is placed on the spliced fixing boards 20 at the moment, the supporting mechanism 9 is slowly moved upwards, the pressure board 7 is attached to the circuit board, and the generated pressure is transmitted to the first controller 6 through the sensor 8 for recording and convenient observation; when the anti-falling performance of the circuit board is required 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 required to be tested, then the electric control telescopic rod 32 on the pressure plate 7 is contracted, 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 the high temperature resistance test of the circuit board is required, 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 telescopic pipe 29 is close to the circuit board, the second controller 28 controls the temperature of the heater 27 in real time, so that the spray head 30 sprays different temperatures, and the circuit board is subjected to the temperature resistance test.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 has shown and described the basic principles, principal 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims

1. The utility model provides a testing arrangement for PCB circuit board, includes test frame (1), its characterized in that, vertically be equipped with first threaded rod (2) in test frame (1), the bilateral symmetry of first threaded rod (2) is equipped with slide bar (3), threaded fit has slider (4) on first threaded rod (2), slider (4) and two slide bar (3) sliding connection, the top of first threaded rod (2) is equipped with first gear, be equipped with first driving motor (5) on the top inner wall of test frame (1), the output of first driving motor (5) is equipped with the second gear with first gear engagement, the top of test frame (1) is equipped with first controller (6), the bottom of first driving motor (5) is equipped with pressure plate (7), be equipped with on pressure plate (7) with first controller (6) electrically connected inductor (8), be equipped with on one end of slider (4) and be used for fixed circuit board supporting mechanism (9), be equipped with test mechanism (10) on the other end of slider (4).

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 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 respectively arranged at the top ends of the first sliding column (17) and the second sliding column (18);

the fixing mechanism (19) comprises a fixing plate (20) contacted 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 formed in 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 the other end of the second threaded rod (37) is connected with a turning hand (24);

the testing mechanism (10) comprises a mounting plate (26) connected with the sliding block (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 the heaters (27), and a spray head (30) is arranged on the telescopic pipe (29);

the top of pressure board (7) is equipped with 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), fluting (33) that are located both sides of connecting block (31) were seted up on pressure board (7), be equipped with connecting plate (34) in 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).

2. A testing device for PCB circuit boards according to claim 1, characterized in that the two fixing plates (20) are provided with magnetic strips (25) of opposite magnetism on mutually opposite sides.

3. A testing device for a PCB circuit board according to claim 2, characterized in that the opposite faces of the two clamping plates (35) are provided with anti-slip cushions (36).