FCT automatic testing device

Abstract

The utility model provides an FCT automatic test device, comprising a test bench body, the surface of the test bench body is provided with a test area, the test area is internally provided with a carrying table used for placing a PCBA board to be tested, and a plug-in module and a probe which are arranged at the outer side of the carrying table and are respectively used for testing a connector and a test point on the PCBA board to be tested; the platform deck is provided with a positioning structure for fixing a PCBA board to be tested, the plugging module realizes plugging and unplugging actions with a connector on the PCBA board to be tested from one side of the platform deck through a translation structure, and the probe moves to a position above a test point on the PCBA board to be tested from one side of the platform deck through a transverse and longitudinal displacement structure. Therefore, contact with and separation from a test point are realized. According to the utility model, the performance of the PCBA board can be rapidly and accurately detected through an automatic test process, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of functional testing technology, specifically, it demonstrates an automated FCT testing device. Background Technology

[0002] Printed circuit boards (PCBA boards), also known as printed circuit boards or printed circuit boards, are important electronic components. They serve as the support for electronic components and the provider of circuit connections for electronic components. Because they are made using electronic printing technology, they are called "printed" circuit boards. Before the advent of printed circuit boards, the interconnection between electronic components relied on direct wire connections to form complete circuits.

[0003] FCT (Functional Test-Current) refers to a test method that provides a simulated operating environment (stimulus and load) for the target board (generally referring to PCBA boards), causing it to operate in various design states, thereby obtaining parameters for each state to verify the functionality of the DUT. PCBA boards typically have test points and several connectors, and their locations are not standardized. Existing FCT test fixtures require manual testing of each test point and connector parameter, which is not only labor-intensive but also inefficient and results in low accuracy. Utility Model Content

[0004] The purpose of this invention is to provide an automated FCT testing device that is easy to operate and has high testing efficiency.

[0005] The technical solution is as follows:

[0006] An automated FCT testing device includes a test platform with a test area on its surface. Within the test area are a stage for placing a PCBA board to be tested, and insertion modules and probes arranged on the outer side of the stage for testing connectors, test points, and other components on the PCBA board. The stage has a positioning structure for fixing the PCBA board to be tested. The insertion modules are moved from one side of the stage via a translation structure to insert and remove connectors from the PCBA board. The probes are moved from one side of the stage to above the test points on the PCBA board via a lateral-to-longitudinal displacement structure to achieve contact and separation with the test points.

[0007] As a preferred embodiment of this utility model, the test area on the test platform is provided with two sets of plug-in modules, namely a USB plug-in module and an RJ45 plug-in module, to correspond to the USB connector and RJ45 connector on the PCBA board to be tested, respectively.

[0008] Furthermore, a buffer group is provided in the test area on the test bench to buffer the connector when the plug-in module is plugged into the connector on the PCBA board to be tested.

[0009] As a preferred embodiment of this utility model, the positioning structure on the platform includes: a placement cavity for placing the PCBA board to be tested, and a pin for positioning the PCBA board to be tested.

[0010] Furthermore, the upper surface of the stage is provided with a groove communicating with the placement cavity, so that the PCBA board to be tested can be taken out from the placement cavity from one side.

[0011] As a preferred embodiment of the present invention, the translation structure includes: a translation cylinder connected to the test platform, and a translation carrier plate connected to the translation cylinder and slidingly engaged with the test platform. The plug-in module is horizontally arranged on the translation carrier plate, and the plug-in module on the translation carrier plate is driven by the translation cylinder to move closer to or away from the PCBA board to be tested.

[0012] As a preferred embodiment of the present invention, the transverse and longitudinal displacement structure includes: a transverse stroke adjusting cylinder connected to the test platform, a base plate connected to the transverse stroke adjusting cylinder and slidingly engaged with the test platform, a longitudinal stroke adjusting cylinder disposed on the base plate, and a test carrier plate connected to the longitudinal stroke adjusting cylinder, wherein the probe is vertically disposed on the test carrier plate.

[0013] Furthermore, a guide insert is provided on the test carrier plate, and a positioning hole that can cooperate with the guide insert is provided on the surface of the stage.

[0014] Furthermore, the test carrier is also provided with a mounting base, on which an optical fiber is arranged for detecting whether the test carrier has moved into place.

[0015] As a preferred embodiment of the present invention, the test platform includes a box body and a load-bearing cover plate rotatably connected to the box body on one side, and the other side of the load-bearing cover plate is closed or separated from the box body through an opening and closing component.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The design of the stage and its positioning structure isolates the PCBA board from the external environment during testing, preventing operators from accidentally touching the PCBA board and enhancing safety during testing.

[0018] 2. The use of movable plug-in modules and probes allows for convenient and rapid contact with the corresponding connectors and test points on the PCBA board under test, thereby completing the test.

[0019] 3. Through automated testing processes, the performance of PCBA boards can be detected quickly and accurately, improving testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a PCBA board to be tested;

[0021] Figure 2 This is a schematic diagram of the FCT automated testing device according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the platform portion of this utility model embodiment;

[0023] Figure 4 This is a schematic diagram of the transverse and longitudinal displacement structure in an embodiment of this utility model;

[0024] The relevant markings in the attached diagram are as follows: 10-PCBA board to be tested, 11-test point, 12-USB connector, 13-RJ45 connector; 20-test stage, 21-box, 22-support cover plate, 23-opening and closing assembly; 30-stage, 31-placement cavity, 32-pin, 33-groove, 34-positioning insertion hole; 40-insertion module, 50-probe; 60-translation structure, 61-translation cylinder, 62-translation carrier plate; 70-lateral and longitudinal displacement structure, 71-lateral stroke adjustment cylinder, 72-substrate, 73-longitudinal stroke adjustment cylinder, 74-test carrier plate, 75-mounting seat, 751-slot; 80-buffer group, 90-guide insertion body. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] This embodiment proposes an automated FCT testing device, mainly for functional testing of PCBA boards, such as... Figure 1 As shown, a certain PCBA board 10 to be tested has an L-shaped structure. Several USB connectors 12 and RJ45 connectors 13 are designed on one side. The surface of the other side has test points 11 (pin points). That is to say, the test points 11 on this PCBA board to be tested are located in different positions from the USB connectors 12 and RJ45 connectors 13.

[0028] Please see Figure 2 , Figure 3 , Figure 4 As shown. The FCT automated testing device includes a test platform 20, with a test area defined on its surface. Within this test area, there is a platform 30 for placing the PCBA board 10 to be tested, and insertion modules 40 and probes 50 arranged on the outer side of the platform 30 for testing connectors, test points, and other components on the PCBA board 10. The platform 30 is also L-shaped, protruding upwards from the surface of the test platform 20. Its main function is to support the stable placement of the PCBA board 10. The platform 30 also has a positioning structure for fixing the PCBA board 10 to ensure it remains relatively stationary after being placed on the platform 30. Two sets of plug-in modules are arranged side by side on the outer side of one side of the stage. These two sets of plug-in modules are a USB plug-in module and an RJ45 plug-in module, which can respectively correspond to the USB connector and RJ45 connector on the PCBA board to be tested and form a plug-in engagement. The probes are arranged on the outer side of the other side of the stage. From the top view, the positional relationship between the probes and the plug-in modules is similar to a bend.

[0029] Two sets of plug-in modules 40 each achieve plugging and unplugging actions with the connectors on the PCBA board 10 under test from one side of the stage 30 through a translation structure 60. The translation structure 60 is set on the test stage 20. The translation structure 60 can drive the plug-in module 40 to move closer to or away from the PCBA board 10 under test on the stage 30. The probe 50 moves from one side of the stage 30 to above the test point on the PCBA board 10 under test through a transverse and longitudinal displacement structure 70 to achieve contact and separation actions with the test point. The transverse and longitudinal displacement structure provides displacement movement on the transverse and longitudinal axes respectively. The transverse and longitudinal displacement structure drives the probe to move above the test point on the PCBA board under test.

[0030] The FCT automated testing device in this embodiment is relatively simple to use: first, the PCBA board to be tested is placed on the platform and fixed by the positioning structure; then, the plug-in module is driven by the translation structure to plug into the connector on the PCBA board to be tested; and the probe is driven by the lateral and longitudinal displacement structure to move above the test point on the PCBA board to be tested and make contact with the test point. The plug-in module and the probe are each connected to an external testing machine through data cables to perform multiple functional tests, which greatly improves the testing efficiency.

[0031] In this embodiment, the positioning structure on the stage 30 includes a placement cavity 31 for placing the PCBA board 10 to be tested and pins 32 for positioning the PCBA board 10 to be tested. The placement cavity 31 is designed to fit the placement of the PCBA board 10 to be tested, and the surface of the placement cavity is recessed with grooves that can match the solder joints on the bottom surface of the PCBA board to be tested. Several pins 32 are protrudingly disposed in the placement cavity 31. The number and position of the pins 32 correspond one-to-one with the number and position of the reserved holes on the PCBA board 10 to be tested. This ensures that when the PCBA board to be tested is placed in the placement cavity, the reserved holes can be accurately fitted onto the pins, ensuring that the PCBA board to be tested is stationary in the horizontal direction.

[0032] The upper surface of the stage 30 is provided with a groove 33 that communicates with the placement cavity 31, so that the operator can take the PCBA board to be tested out of the placement cavity from the groove on one side. This design is mainly to facilitate the removal of the PCBA board to be tested.

[0033] In this embodiment, the design of the translation structure 60 mainly includes a translation cylinder 61 and a translation carrier plate 62. The translation cylinder 61 is horizontally mounted on the surface of the test platform 20, while the translation carrier plate 62 is connected to the output end of the translation cylinder 61. The bottom end of the translation carrier plate 62 and the test platform 20 are also slidably fitted together through a slider and slide rail assembly. The plug-in module 40 is horizontally mounted on the translation carrier plate 62 and faces the PCBA board 10 to be tested. Thus, the translation cylinder 61 drives the plug-in module 40 on the translation carrier plate 62 to move closer to or away from the PCBA board 10 to be tested, thereby realizing the insertion or separation action with the connector.

[0034] To prevent damage to the connector structure on the PCBA board under test due to excessive mating between the plug module and the connector, a buffer group 80 is provided in the test area on the test bench 20. The buffer group can be an existing buffer. The buffer group 80 is fixed on the surface of the test bench 20, facing the translation carrier 62 and located on the movement path of the translation carrier 62. That is, when the translation cylinder 61 drives the plug module 40 on the translation carrier 62 to complete the mating action with the connector on the PCBA board 10 under test, the translation carrier 62 also comes into contact with the buffer group 40. The buffer group 80 restricts the translation carrier 62 from continuing to move, thereby preventing damage to the connector.

[0035] In this embodiment, the design of the lateral and longitudinal displacement structure 70 includes a lateral stroke adjustment cylinder 71, a substrate 72, a longitudinal stroke adjustment cylinder 73, and a test carrier plate 74. The lateral stroke adjustment cylinder 71 is horizontally fixed on the test stage 20, and the substrate 72 is horizontally connected to the output end of the lateral stroke adjustment cylinder 71. The lateral stroke adjustment cylinder 71 drives the substrate 72 to perform lateral displacement. The longitudinal stroke adjustment cylinder 73 is vertically mounted on the top of the substrate 72, and the test carrier plate 74 is connected to the output end of the longitudinal stroke adjustment cylinder 73. The longitudinal stroke adjustment cylinder 73 drives the test carrier plate 74 to perform longitudinal displacement. The probe 50 is vertically mounted on the test carrier plate 74. Thus, the lateral and longitudinal displacement structure 70 drives the test carrier plate 74 to move the probe 50 thereon to above the test point 11 on the PCBA board 10 to be tested and achieve contact with the test point 11.

[0036] A vertical guide insert 90 is provided on the test carrier 74, and the guide insert 90 is located near the probe 50. A positioning hole 34 that can cooperate with the guide insert 90 is provided on the surface of the stage 30. In this way, when the lateral and longitudinal displacement structure 70 drives the test carrier 74 to move the probe 50 on it to above the test point 11 on the PCBA board 10 to be tested, the guide insert 90 can be inserted into the positioning hole 34 first, ensuring that the position of the probe will not deviate during the test and ensuring the accuracy of the test data.

[0037] The test carrier 74 is also equipped with a mounting base 75, on which an optical fiber is laid to detect whether the test carrier has moved into place. The optical fiber is not clearly shown in the figure, but the slot 751 for installing the optical fiber is shown. The optical fiber ensures the accuracy of the probe's lateral and longitudinal movement position.

[0038] In this embodiment, the test platform 20 includes a box 21 and a support cover 22 that is hinged to the box 21 on one side. The other side of the support cover 22 can be closed or separated from the box 21 by an opening and closing component 23, such as a spring buckle. The box 21 has a cuboid structure and has space inside to accommodate devices such as control boards and power supplies.

[0039] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An automated FCT testing device, comprising a test platform (20), the surface of which has a test area, characterized in that, The test area includes: a platform (30) for placing the PCBA board (10) to be tested, and plug-in modules (40) and probes (50) arranged outside the platform (30) for testing the connectors and test points on the PCBA board (10) to be tested, respectively; the platform (30) has a positioning structure for fixing the PCBA board (10) to be tested, the plug-in module (40) is moved from one side of the platform (30) to the connectors on the PCBA board (10) to be tested by a translation structure (60), and the probe (50) is moved from one side of the platform (30) to above the test point on the PCBA board (10) to achieve contact and separation with the test point by a transverse longitudinal displacement structure (70).

2. The FCT automated testing device according to claim 1, characterized in that, The test area on the test bench (20) is provided with two sets of plug-in modules (40), namely a USB plug-in module and an RJ45 plug-in module, which correspond to the USB connector (12) and RJ45 connector (13) on the PCBA board (10) to be tested, respectively.

3. An automated FCT testing device according to claim 1 or 2, characterized in that, A buffer group (80) is provided in the test area on the test platform (20) to buffer the connectors on the PCBA board (10) to be tested when the plug-in module (40) is plugged in.

4. The FCT automated testing device according to claim 1, characterized in that, The positioning structure on the stage (30) includes: a placement cavity (31) for placing the PCBA board to be tested, and a pin (32) for positioning the PCBA board (10) to be tested.

5. The FCT automated testing device according to claim 4, characterized in that, The upper surface of the stage (30) is provided with a groove (33) communicating with the placement cavity (31) so that the PCBA board (10) to be tested can be taken out from the placement cavity (31) from one side.

6. The FCT automated testing device according to claim 1, characterized in that, The translation structure (60) includes: a translation cylinder (61) connected to the test platform (20), and a translation carrier plate (62) connected to the translation cylinder (61) and slidingly engaged with the test platform (20). The plug-in module (40) is horizontally arranged on the translation carrier plate (62), and the plug-in module (40) on the translation carrier plate (62) is driven by the translation cylinder (61) to move closer to or away from the PCBA board (10) to be tested.

7. The FCT automated testing device according to claim 1, characterized in that, The lateral and longitudinal displacement structure (70) includes: a lateral stroke adjustment cylinder (71) connected to the test stage (20), a base plate (72) connected to the lateral stroke adjustment cylinder (71) and slidably engaged with the test stage (20), a longitudinal stroke adjustment cylinder (73) disposed on the base plate (72), and a test carrier plate (74) connected to the longitudinal stroke adjustment cylinder (73), wherein the probe (50) is vertically disposed on the test carrier plate (74).

8. The FCT automated testing device according to claim 7, characterized in that, A guide insert (90) is provided on the test carrier plate (74), and a positioning hole (34) that can cooperate with the guide insert (90) is provided on the surface of the stage (30).

9. An automated FCT testing device according to claim 7, characterized in that, The test carrier (74) is also provided with a mounting base (75), and an optical fiber for detecting whether the test carrier has moved into place is arranged on the mounting base (75).

10. The FCT automated testing device according to claim 1, characterized in that, The test platform (20) includes a box (21) and a support cover (22) rotatably connected to the box (21) on one side. The other side of the support cover (22) is closed or separated from the box (21) through an opening and closing component (23).

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