CN216670183U

CN216670183U - Automatic test equipment for PCB (printed circuit board)

Info

Publication number: CN216670183U
Application number: CN202122678530.XU
Authority: CN
Inventors: 欧阳福
Original assignee: Zhuhai Chi Ming Precision Circuit Co ltd
Current assignee: Zhuhai Chi Ming Precision Circuit Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-06-03
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses automatic PCB circuit board testing equipment which comprises a test board, wherein a hydraulic cylinder is fixedly arranged at the upper end of the test board, a pressing plate is fixedly connected at the lower end of the hydraulic cylinder, a pressure sensor is fixedly connected at the lower end of the pressing plate, connecting plates are fixedly connected to two sides of the hydraulic cylinder, a first rack is fixedly connected to the lower end of the connecting plate, a clamping box is arranged at the lower end of the first rack in a sliding mode, a sliding plate is connected to one side of the clamping box in a sliding mode, a clamping plate is fixedly connected to one side of the sliding plate, two symmetrically distributed conveying belts are respectively arranged at two ends of the test board, one conveying belt is an intermittent conveying belt, the pressure sensor is electrically connected with the hydraulic cylinder through a controller, and a transmission mechanism is arranged in the clamping box. According to the utility model, the manual material transportation by workers is not needed, so that the efficiency of testing the pressure of the circuit board is increased, and the efficiency of producing the circuit board is further increased.

Description

Automatic test equipment for PCB (printed circuit board)

Technical Field

The utility model relates to the technical field of automatic testing of PCB (printed circuit board), in particular to automatic testing equipment of a PCB.

Background

In modern society, with the popularization and use of various electrical appliances, a circuit board becomes a very common part, and the circuit board enables a circuit to be miniaturized and visualized, and plays an important role in the batch production of fixed circuits and the optimization of the layout of the electrical appliances. The circuit board can also be called as a printed circuit board or a printed circuit board, the circuit board is divided into a Flexible Printed Circuit (FPC), a hard Printed Circuit (PCB) and a flexible-rigid printed circuit board (FPCB) according to characteristics, the printed circuit board is also developed towards high density and high precision along with the development of electronic products towards miniaturization and digitization, and in the circuit board processing procedure, the testing of the processed circuit board is a necessary link, which is helpful for judging which links have problems in the processing process and is helpful for improving the productivity. The test part is divided into several parts, such as pressure test, marking mark after test and final plate mounting.

However, in the prior art, many links inside the circuit board are manually assisted, and for example, when pressure testing is performed, the single board can only be conveyed manually, so that the efficiency of the pressure testing of the circuit board is greatly reduced, and the production efficiency of the circuit board is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide automatic PCB testing equipment to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: automatic test equipment of PCB circuit board, including the testboard, the fixed hydraulic cylinder that is equipped with in upper end of testboard, the lower extreme fixedly connected with clamp plate of hydraulic cylinder, the lower extreme fixedly connected with pressure sensor of clamp plate, the connecting plate of two symmetric distributions of hydraulic cylinder's both sides fixedly connected with, the first rack of connecting plate lower extreme fixedly connected with, the lower extreme of first rack slides and is equipped with the centre gripping case, one side sliding connection of centre gripping case has the slide, one side fixedly connected with splint of slide, be equipped with drive mechanism in the centre gripping incasement.

In a preferred embodiment: the transmission mechanism comprises a first gear meshed and connected with one side of a first rack, the first gear is meshed and connected with a second gear, a rotating shaft is fixedly connected to the inner wall of the second gear and is rotatably connected with the clamping box, a third gear is fixedly connected to the outer wall of the rotating shaft, a second rack is meshed and connected with the upper end of the third gear, and one side of the second rack is fixedly connected with the sliding plate.

In a preferred embodiment: the connecting blocks that two symmetric distributions of both ends fixedly connected with of slide, two the one end fixedly connected with slider of connecting block, slider sliding connection is in the spout, the spout is fixed to be located in the wall body of centre gripping case, through the setting of connecting block and slider, has increased the stability that splint and second rack removed.

In a preferred embodiment: the upper end of the test board is fixedly provided with through holes on two sides, the first rack penetrates through the clamping box and is in sliding connection with the through holes, the upper end of the test board is rotatably connected with a plurality of rollers which are distributed equidistantly, and automatic conveying work of a circuit board is facilitated through arrangement of the rollers.

In a preferred embodiment: two symmetrically distributed conveyor belts are respectively arranged at two ends of the test board, one of the conveyor belts is an intermittent conveyor belt, the pressure sensor is electrically connected with the hydraulic cylinder through the controller, and the pressure sensor is arranged to prevent the circuit board from being damaged due to overlarge pressure when the circuit board is subjected to pressure test by the pressure plate.

In a preferred embodiment: the two sides of the upper end of the test board are fixedly connected with two fixing rods which are symmetrically distributed, the upper ends of the fixing rods are fixedly connected with fixing plates, the lower ends of the fixing plates are fixedly connected with the hydraulic cylinder, and the fixing rods and the fixing plates are arranged to increase the supporting effect on the hydraulic cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the test board, the hydraulic cylinder, the pressing plate, the connecting plate, the first rack, the clamping box, the sliding plate, the clamping plate, the first gear, the second gear, the rotating shaft, the second rack, the through hole, the fixing plate and the third gear, the manual material transportation by workers is not needed, the efficiency of the pressure test on the circuit board is increased, the efficiency of the production of the circuit board is further increased, and the damage of the circuit board caused by overlarge pressure when the pressing plate carries out the pressure test on the circuit board can be avoided through the arrangement of the pressure sensor.

2. According to the utility model, through the arrangement of the connecting block and the sliding block, the moving stability of the clamping plate and the second rack is increased, and through the arrangement of the roller and the conveying belt, the automatic conveying work of the circuit board is facilitated, the manual conveying of workers is not required, and the labor intensity of the workers is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic view of the interior of the clamping box of the present invention in front elevation;

FIG. 3 is a schematic top view of the interior of the clamping box of the present invention;

FIG. 4 is a schematic top view of the test station and the upper end of the conveyor belt of the present invention;

in the figure: 1. a test bench; 2. a hydraulic cylinder; 3. pressing a plate; 4. a pressure sensor; 5. a connecting plate; 6. a first rack; 7. a clamping box; 8. a slide plate; 9. a splint; 10. a first gear; 11. a second gear; 12. a rotating shaft; 13. a second rack; 14. connecting blocks; 15. a slider; 16. a through hole; 17. a roller; 18. a conveyor belt; 19. a fixing plate; 20. a third gear.

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.

Referring to fig. 1-4, the present invention provides the following technical solutions: the PCB automatic testing equipment comprises a testing table 1, wherein a hydraulic cylinder 2 is fixedly arranged at the upper end of the testing table 1, a pressing plate 3 is fixedly connected at the lower end of the hydraulic cylinder 2, a pressure sensor 4 is fixedly connected at the lower end of the pressing plate 3, two symmetrically distributed conveying belts 18 are respectively arranged at two ends of the testing table 1, one conveying belt 18 is an intermittent conveying belt, the pressure sensor 4 is electrically connected with the hydraulic cylinder 2 through a controller, automatic conveying work of a circuit board is facilitated through arrangement of the conveying belts, two symmetrically distributed connecting plates 5 are fixedly connected at two sides of the hydraulic cylinder 2, a first rack 6 is fixedly connected at the lower end of each connecting plate 5, a clamping box 7 is arranged at the lower end of each first rack 6 in a sliding manner, through holes 16 are fixedly arranged at two sides of the upper end of the testing table 1, the first racks 6 penetrate through the clamping box 7 and are in sliding connection with the through holes 16, the upper end of testboard 1 is rotated and is connected with a plurality of equidistant gyro wheels 17 that distribute, through the setting of through-hole, has increased the distance that first rack removed, thereby avoids first rack striking to cause the damage of first rack on the testboard, one side sliding connection of centre gripping case 7 has slide 8, the connecting block 14 of two symmetric distributions of both ends fixedly connected with of slide 8, two the one end fixedly connected with slider 15 of connecting block 14, slider 15 sliding connection is in the spout, the spout is fixed to be located in the wall body of centre gripping case 7, along with the removal of second rack, and then drives the slide and remove the steadiness that has increased the slide and remove through connecting block and slider, one side fixedly connected with splint 9 of slide 8, be equipped with drive mechanism in the centre gripping case 7.

Further, drive mechanism includes the first gear 10 of being connected with the meshing of one side of first rack 6, the meshing of first gear 10 is connected with second gear 11, fixedly connected with pivot 12 on the inner wall of second gear 11, pivot 12 rotates with centre gripping case 7 and is connected, fixedly connected with third gear 20 on the outer wall of pivot 12, the upper end meshing of third gear 20 is connected with second rack 13, one side and slide 8 fixed connection of second rack 13.

Further, the both sides fixedly connected with dead lever of two symmetric distributions of testboard 1 upper end, the upper end fixedly connected with fixed plate 19 of dead lever, the lower extreme and the 2 fixed connections of hydraulic cylinder of fixed plate 19 have increased the supporting role to hydraulic cylinder through the setting of dead lever and fixed plate.

The working principle of the utility model is as follows: when in use, a circuit board is placed on the placing table, then the placing table is placed on the front intermittently conveyed conveyor belt 18, the material is conveyed onto the roller 17 along with the conveying of the conveyor belt 18, then the front conveyor belt 18 stops conveying, then the hydraulic cylinder 2 is started, the hydraulic cylinder 2 starts to drive the connecting plate 5 and the pressing plate 3 to move downwards, the first rack 6 is driven to move downwards along with the downward movement of the connecting plate 5, the first gear 10 in meshing connection is driven to start to rotate forwards, the first gear 10 rotates forwards to drive the second gear 11 to rotate backwards, the rotating shaft 12 rotates backwards to drive the third gear 20 to rotate backwards, the two second racks 13 are driven to move oppositely, the two clamping plates 9 are driven to move oppositely through the sliding plate 8, the material and the placing table are clamped, and after the clamping is finished, the hydraulic cylinder 2 drives the connecting plate 5 and the pressing plate 3 to move downwards continuously, at the moment, the first rack 6 does not have a tooth groove, the first gear 10 does not rotate any more, then the pressing plate 3 moves downwards to drive the pressure sensor 4 to carry out pressure test on a circuit board placed on the platform, when the pressure sensor 4 detects certain pressure, the controller controls the hydraulic cylinder 2 to stop moving, after the test is completed, the hydraulic cylinder 2 shortens upwards, the same as the above, the connecting plate 5 moves upwards, the first gear 10 rotates reversely, the clamping plate 9 loosens materials, the conveying belt 18 at the front end continues conveying, and then the previous placing platform is squeezed away by the previous placing platform, and the pressure test of the next circuit board is started.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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

PCB circuit board automatic test equipment, including testboard (1), its characterized in that: the hydraulic pressure cylinder (2) is fixedly arranged at the upper end of the test board (1), a pressing plate (3) is fixedly connected to the lower end of the hydraulic pressure cylinder (2), a pressure sensor (4) is fixedly connected to the lower end of the pressing plate (3), two symmetrically distributed connecting plates (5) are fixedly connected to the two sides of the hydraulic pressure cylinder (2), a first rack (6) is fixedly connected to the lower end of each connecting plate (5), a clamping box (7) is arranged at the lower end of each first rack (6) in a sliding mode, a sliding plate (8) is connected to one side of each clamping box (7), a clamping plate (9) is fixedly connected to one side of each sliding plate (8), and a transmission mechanism is arranged in each clamping box (7).
2. The automated PCB board testing device of claim 1, wherein: drive mechanism includes first gear (10) of being connected with one side meshing of first rack (6), first gear (10) meshing is connected with second gear (11), fixedly connected with pivot (12) on the inner wall of second gear (11), pivot (12) are rotated with centre gripping case (7) and are connected, fixedly connected with third gear (20) on the outer wall of pivot (12), the upper end meshing of third gear (20) is connected with second rack (13), one side and slide (8) fixed connection of second rack (13).
3. The automated PCB board testing device of claim 1, wherein: the two ends of the sliding plate (8) are fixedly connected with two symmetrically distributed connecting blocks (14) and two one ends of the connecting blocks (14) are fixedly connected with sliding blocks (15), the sliding blocks (15) are connected in the sliding grooves in a sliding mode, and the sliding grooves are fixedly arranged in the wall body of the clamping box (7).
4. The automated PCB board testing device of claim 1, wherein: the device is characterized in that through holes (16) are fixedly formed in two sides of the upper end of the test board (1), the first rack (6) penetrates through the clamping box (7) and is in sliding connection with the through holes (16), and a plurality of rollers (17) distributed equidistantly are rotatably connected to the upper end of the test board (1).
5. An automated PCB circuit board testing device as defined in claim 4, wherein: two symmetrically distributed conveying belts (18) are respectively arranged at two ends of the test table (1), one conveying belt (18) is an intermittent conveying belt, and the pressure sensor (4) is electrically connected with the hydraulic cylinder (2) through a controller.
6. An automated PCB circuit board testing device as in claim 5, wherein: two symmetrically distributed fixing rods are fixedly connected to two sides of the upper end of the test board (1), a fixing plate (19) is fixedly connected to the upper ends of the fixing rods, and the lower end of the fixing plate (19) is fixedly connected with the hydraulic cylinder (2).