PCBA automatic testing device

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) testing equipment, in particular to a PCBA (Printed Circuit Board Assembly) automatic testing device, which comprises a detection table, a feeding mechanism, a moving mechanism and a testing mechanism, a through groove is formed in the middle of the interior of the detection table, and a conveying belt is arranged below the detection table. By arranging the feeding mechanism, when the PCB detection device is used, a to-be-detected PCB is conveyed through a conveying belt, a switch of a first motor is turned on, so that a rotating shaft drives a rotating plate to rotate, a supporting plate drives a lifting plate to rotate to the position above the conveying belt, a switch of an electric push rod is turned on, a suction cup on the lifting plate is in contact with the PCB, and the PCB is detected. The PCB is connected with the suction cup in an adsorption mode through negative pressure adsorption, then the motor is adjusted again to enable the rotating plate to rotate into the through groove, the position of the testing mechanism is adjusted through the moving mechanism, and when a first positioning sensor and a second positioning sensor generate feedback, a switch of the testing mechanism can be turned on to test the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board testing equipment, in particular to a PCBA automatic testing device. Background Art

[0002] PCBA refers to the whole process of a PCB bare board after SMT component mounting or DIP plug-in. After PCBA is completed, the PCB board needs to be tested to detect whether it meets the use standards.

[0003] After retrieval, a PCBA automatic testing device with the patent number CN202121196328.7 includes a testing roller. A plurality of threaded holes are evenly distributed on the outer surface of the testing roller, and a movable mounting seat is installed inside the threaded holes. One end of the movable mounting seat is installed with a testing ejector rod, and an inner support spring is installed inside the movable mounting seat. One end of the inner support spring abuts against the inner end face of the movable mounting seat, and the other end of the inner support spring abuts against the end face of the testing ejector rod. By evenly distributing a plurality of threaded holes on the outer surface of the testing roller, installing a movable mounting seat inside the threaded holes, installing a testing ejector rod at one end of the movable mounting seat, installing an inner support spring inside the movable mounting seat, with one end of the inner support spring abutting against the inner end face of the movable mounting seat and the other end of the inner support spring abutting against the end face of the testing ejector rod, this can adjust the downward pressure of the pressing mechanism according to the needs of the test and adjust the depth of downward pressing. The whole adjustment operation is convenient. Just rotate the position of the movable mounting seat in the threaded hole on the outer surface of the testing roller. At the same time, the setting of the inner support spring can make the downward pressure increase linearly, with high testing flexibility. At the same time, the test is carried out by rotating the testing roller, making the test operation a flow-through testing method, effectively improving the convenience and efficiency of the test operation.

[0004] However, the current PCBA automatic testing device and the above comparative document still have the following disadvantages. Although the above comparative document can perform flow-through testing on the PCB board, when the PCB board passes through the testing ejector rod, it uses the inner support spring to make the testing ejector rod engage with the PCB board for detection. Therefore, when the PCB board is being detected, since the PCB board will contact in advance when the testing ejector rod rotates to the vertical state, the PCB board will shift, easily resulting in inaccurate detection of the PCB board and prone to errors, thus unable to better test the PCB board. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a PCBA automatic testing device to solve the technical problems that although the above-mentioned comparative document can perform flow-through testing on a PCB board, when the PCB board passes through the test ejector rod, the test ejector rod is clamped with the PCB board through an internal support spring for detection. Therefore, when the PCB board is being detected, since the PCB board will come into contact in advance when the test ejector rod rotates to the vertical state, the PCB board will shift, which easily leads to inaccurate detection of the PCB board and errors, and thus the PCB board cannot be tested better.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] A PCBA automatic testing device, comprising:

[0008] A detection table; a through groove is opened in the middle of the interior of the detection table, and a conveyor belt is arranged below the detection table;

[0009] A feeding mechanism; the feeding mechanism includes a support plate, a lifting plate, a vertical plate, a rotating plate, a motor 1, an electric push rod 1, a conveying pipe, a rotating shaft, a suction cup and a positioning sensor 1. The top of the vertical plate is fixedly installed on the lower surface of the detection table. The motor 1 is fixedly installed on the outer wall of one side of the vertical plate. The rotating shaft 1 is movably inserted into the interior of the vertical plate. The output end of the motor 1 is fixedly connected to one end of the rotating shaft on one side. The other end of the rotating shaft is fixedly connected to the rotating plate. The support plate is fixedly installed on the top of the rotating plate. The electric push rod 1 is fixedly installed at the bottom of the support plate. The output end of the electric push rod 1 is fixedly connected to the lifting plate. The suction cup is embedded in the top wall of the lifting plate. A PCB board is arranged on the top of the suction cup through negative pressure adsorption.

[0010] A moving mechanism; the moving mechanism is arranged on the top of the detection table;

[0011] A testing mechanism; the testing mechanism is arranged on the top of the moving mechanism.

[0012] Further, support legs are fixedly installed at the bottom of the detection table, and foot pads are fixedly installed at the bottom ends of the support legs.

[0013] Further, the moving mechanism includes an installation frame, a motor 2, a lead screw, a moving block, an embedded linear motor and a support block. The installation frame is fixedly installed on the top of the detection table. The motor 2 is fixedly installed on the outer wall of one side of the installation frame. The output end of the motor 2 is fixedly connected to the lead screw. The moving block is movably sleeved outside the lead screw, and the moving block is slidably connected to the inner wall of the installation frame.

[0014] Furthermore, the support block is fixedly installed on the top of the moving block, and the inlaid linear motor is fixedly installed on the top of the support block.

[0015] Furthermore, the testing mechanism includes a mounting plate, an electric push rod II, an adjusting plate, test pins, and a positioning sensor II. The mounting plate is fixedly installed on the top of the inlaid linear motor, and the electric push rod II is fixedly installed on the top of the mounting plate.

[0016] Furthermore, the output end of the electric push rod is fixedly connected to the adjusting plate, and both the test pins and the positioning sensor II are fixedly installed on the bottom of the adjusting plate.

[0017] Furthermore, a positioning sensor I is fixedly installed on the top of the support plate, and the input end of the suction cup is fixedly connected to the conveying pipe.

[0018] Advantages of the present utility model:

[0019] By providing a feeding mechanism, during use, the PCB board to be detected is conveyed through the conveyor belt. The switch of the motor I is turned on, so that the rotating shaft drives the rotating plate to rotate, thereby causing the support plate to drive the lifting plate to rotate above the conveyor belt. Then, the switch of the electric push rod is turned on, so that the suction cup on the lifting plate contacts the PCB board. Then, through negative pressure adsorption, the PCB board is adsorbed and connected to the suction cup. Then, the motor is adjusted again to make the rotating plate rotate into the through groove. Then, the position of the testing mechanism is adjusted through the moving mechanism. When the positioning sensor I and the positioning sensor II give feedback, the switch of the testing mechanism can be turned on to test the PCB board. Fixing with a suction cup makes the PCB board more stable during testing, makes the test result of the PCB board more accurate, and is not prone to deviation, thus avoiding errors in the test result. The degree of automation is relatively high, which is beneficial to the batch testing of PCB boards. Description of the drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the PCBA automatic testing device;

[0022] Figure 2 It is a three-dimensional installation schematic diagram of the feeding mechanism of an embodiment of the PCBA automatic testing device;

[0023] Figure 3Schematic three-dimensional view of the moving mechanism of the embodiment of the PCBA automatic testing device;

[0024] Figure 4 Schematic three-dimensional view of the feeding mechanism of the embodiment of the PCBA automatic testing device;

[0025] Figure 5 Schematic three-dimensional view of the installation of the PCB board in the embodiment of the PCBA automatic testing device.

[0026] Explanation of the markings in the figure: 1. Detection table; 11. Support legs; 12. Foot pads; 2. Feeding mechanism; 21. Support plate; 22. Lifting plate; 23. Vertical plate; 24. Rotating plate; 25. Motor 1; 26. Electric push rod 1; 27. Delivery pipe; 28. Rotating shaft; 29. Suction cup; 20. Positioning sensor 1; 3. Moving mechanism; 31. Installation frame; 32. Motor 2; 33. Lead screw; 34. Moving block; 35. Support block; 4. Testing mechanism; 41. Installation plate; 42. Electric push rod 2; 43. Adjusting plate; 44. Testing pins; 45. Positioning sensor 2; 5. Conveyor belt; 6. PCB board. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the appended Figures 1-5 , and it is obvious that the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0029] It should also be understood that the terms used in this specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in this specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0030] It should be further understood that the term " / and / " used in this specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0031] Please refer toFigures 1-5 As shown in the figure, a PCBA automatic testing device includes: a detection table 1, a feeding mechanism 2, a moving mechanism 3, and a testing mechanism 4. A through groove is opened in the middle of the interior of the detection table 1. A conveyor belt 5 is arranged below the detection table 1. The feeding mechanism 2 includes a support plate 21, a lifting plate 22, a vertical plate 23, a rotating plate 24, a first motor 25, a first electric push rod 26, a conveying pipe 27, a rotating shaft 28, a suction cup 29, and a first positioning sensor 20. The top of the vertical plate 23 is fixedly installed on the lower surface of the detection table 1. The first motor 25 is fixedly installed on the outer wall of one side of the vertical plate 23. One end of the rotating shaft 28 is movably inserted into the interior of the vertical plate 23. The output end of the first motor 25 is fixedly connected to one end of the rotating shaft 28 on one side. The other end of the rotating shaft 28 is fixedly connected to the rotating plate 24. The support plate 21 is fixedly installed on the top of the rotating plate 24. The first electric push rod 26 is fixedly installed on the bottom of the support plate 21. The output end of the first electric push rod 26 is fixedly connected to the lifting plate 22. The suction cup 29 is embedded in the top wall of the lifting plate 22. A PCB board 6 is arranged on the top of the suction cup 29 through negative pressure adsorption. The moving mechanism 3 is arranged on the top of the detection table 1. The testing mechanism 4 is arranged on the top of the moving mechanism 3. A first positioning sensor 20 is fixedly installed on the top of the support plate 21. The input end of the suction cup 29 is fixedly connected to the conveying pipe 27. The conveying pipe 27 is externally connected to a negative pressure system. When the first positioning sensor 20 moves directly above the second positioning sensor 45, the two give feedback, and then transmit the signal to the controller, so that the controller makes corresponding operations. Both the first positioning sensor 20 and the second positioning sensor 45 adopt infrared positioning sensors.

[0032] Specifically, by setting the feeding mechanism 2, during use, the PCB board 6 to be detected is conveyed through the conveyor belt 5. The switch of the first motor 25 is turned on, so that the rotating shaft 28 drives the rotating plate 24 to rotate, so that the support plate 21 drives the lifting plate 22 to rotate above the conveyor belt 5. Then the switch of the electric push rod is turned on, so that the suction cup 29 on the lifting plate 22 contacts the PCB board 6. Then through negative pressure adsorption, the PCB board 6 is adsorbed and connected to the suction cup 29. Then the motor is adjusted again to make the rotating plate 24 rotate into the through groove. Then the position of the testing mechanism 4 is adjusted through the moving mechanism 3. When the first positioning sensor 20 and the second positioning sensor 45 give feedback, the switch of the testing mechanism 4 can be turned on to test the PCB board 6, making the PCB board 6 more stable during testing, making the test result of the PCB board 6 more accurate, and not easily showing an offset phenomenon, which may lead to an error in the test result. The degree of automation is relatively high, which is beneficial to the batch testing of the PCB board 6.

[0033] In this embodiment, support legs 11 are fixedly installed at the bottom of the detection table 1, and foot pads 12 are fixedly installed at the bottom ends of the support legs 11.

[0034] Specifically, an external power supply of the device provides electrical energy for the device. The device is externally connected to a controller, which is a PLC board. The controller is electrically connected to motor 1 25, motor 2 32, electric push rod 1 26, electric push rod 2 42, test pin 44, embedded linear motor 36, positioning sensor 1 20, positioning sensor 2 45, and conveyor belt 5.

[0035] The moving mechanism 3 includes a mounting frame 31, motor 2 32, lead screw 33, moving block 34, embedded linear motor 36, and support block 35. The mounting frame 31 is fixedly installed on the top of the inspection table 1. Motor 2 32 is fixedly installed on the outer wall of one side of the mounting frame 31. The output end of motor 2 32 is fixedly connected to the lead screw 33. The moving block 34 is movably sleeved outside the lead screw 33, and the moving block 34 is slidably connected to the inner wall of the mounting frame 31. The support block 35 is fixedly installed on the top of the moving block 34. The embedded linear motor 36 is fixedly installed on the top of the support block 35.

[0036] Specifically, during use, the switch of motor 2 32 is turned on, so that the lead screw 33 drives the moving block 34 to move, and then the support block 35 drives the embedded linear motor 36 to move. The switch of the embedded linear motor 36 is turned on. The working principle of the embedded linear motor 36 is a known and mature existing technology, and will not be explained in detail here. Thus, the testing mechanism 4 can move, which is convenient for the testing mechanism 4 to quickly move above the PCB board 6 to be detected. At the same time, it is also beneficial for the testing mechanism 4 to test different positions of the PCB board 6, making the testing more comprehensive and the testing range wider.

[0037] The testing mechanism 4 includes a mounting plate 41, electric push rod 2 42, adjusting plate 43, test pin 44, and positioning sensor 2 45. The mounting plate 41 is fixedly installed on the top of the embedded linear motor 36. Electric push rod 2 42 is fixedly installed on the top of the mounting plate 41. The output end of the electric push rod is fixedly connected to the adjusting plate 43. Both the test pin 44 and the positioning sensor 2 45 are fixedly installed on the bottom of the adjusting plate 43.

[0038] Specifically, the switch of electric push rod 2 42 is turned on, so that the adjusting plate 43 drives the test pin 44 to move to test the PCB board 6. The operation is simple and very convenient. When the test result is correct, the feeding mechanism 2 is used to place it back on the conveyor belt 5 for continuous transmission. When the test result has an error, the staff can directly remove the PCB board 6, then mark it and store it separately for processing.

[0039] In summary, compared with the prior art, the PCBA testing device has at least the following beneficial effects: By providing a feeding mechanism 2, during use, the PCB board 6 to be detected is conveyed through the conveyor belt 5. The switch of the first motor 25 is turned on, so that the rotating shaft 28 drives the rotating plate 24 to rotate, and then the support plate 21 drives the lifting plate 22 to rotate above the conveyor belt 5. Then, the switch of the electric push rod is turned on, so that the suction cup 29 on the lifting plate 22 contacts the PCB board 6. Then, through negative pressure adsorption, the PCB board 6 is adsorbed and connected to the suction cup 29. Then, the motor is adjusted again to make the rotating plate 24 rotate into the through groove. Then, the position of the testing mechanism 4 is adjusted through the moving mechanism 3. When the first positioning sensor 20 and the second positioning sensor 45 give feedback, the switch of the testing mechanism 4 can be turned on to test the PCB board 6, making the PCB board 6 more stable during testing, making the test result of the PCB board 6 more accurate, and not easily occurring deviation phenomena, which may lead to errors in the test results. The degree of automation is relatively high, which is beneficial to the batch testing of the PCB board 6.

[0040] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automated PCBA testing device, characterized in that, Including: A detection table (1); a through groove is formed in the middle of the interior of the detection table (1), and a conveyor belt (5) is arranged below the detection table (1); A feeding mechanism (2); the feeding mechanism (2) includes a support plate (21), a lifting plate (22), a vertical plate (23), a rotating plate (24), a first motor (25), a first electric push rod (26), a conveying pipe (27), a rotating shaft (28), a suction cup (29) and a first positioning sensor (20). The top of the vertical plate (23) is fixedly installed on the lower surface of the detection table (1). The first motor (25) is fixedly installed on the outer wall of one side of the vertical plate (23). One end of the rotating shaft (28) is movably inserted into the interior of the vertical plate (23). The output end of the first motor (25) is fixedly connected to one end of the rotating shaft (28) on one side. The other end of the rotating shaft (28) is fixedly connected to the rotating plate (24). The support plate (21) is fixedly installed on the top of the rotating plate (24). The first electric push rod (26) is fixedly installed at the bottom of the support plate (21). The output end of the first electric push rod (26) is fixedly connected to the lifting plate (22). The suction cup (29) is embedded in the top wall of the lifting plate (22). A PCB board (6) is arranged on the top of the suction cup (29) by negative pressure adsorption; A moving mechanism (3); the moving mechanism (3) is arranged on the top of the detection table (1); A testing mechanism (4); the testing mechanism (4) is arranged on the top of the moving mechanism (3).

2. The PCBA automatic test device according to claim 1, characterized in that, Support legs (11) are fixedly installed at the bottom of the detection table (1), and foot pads (12) are fixedly installed at the bottom ends of the support legs (11).

3. An automated PCBA testing device according to claim 1, characterized in that, The moving mechanism (3) includes an installation frame (31), a second motor (32), a lead screw (33), a moving block (34), an embedded linear motor (36) and a support block (35). The installation frame (31) is fixedly installed on the top of the detection table (1). The second motor (32) is fixedly installed on the outer wall of one side of the installation frame (31). The output end of the second motor (32) is fixedly connected to the lead screw (33). The moving block (34) is movably sleeved outside the lead screw (33), and the moving block (34) is slidably connected to the inner wall of the installation frame (31).

4. An automated PCBA testing device according to claim 3, characterized in that, The support block (35) is fixedly installed on the top of the moving block (34), and the embedded linear motor (36) is fixedly installed on the top of the support block (35).

5. An automatic PCBA testing device according to claim 4, characterized in that, The testing mechanism (4) includes an installation plate (41), a second electric push rod (42), an adjusting plate (43), testing pins (44) and a second positioning sensor (45). The installation plate (41) is fixedly installed on the top of the embedded linear motor (36). The second electric push rod (42) is fixedly installed on the top of the installation plate (41).

6. An automated PCBA testing device according to claim 5, characterized in that, The output end of the electric push rod is fixedly connected to the adjusting plate (43), and both the testing pins (44) and the second positioning sensor (45) are fixedly installed at the bottom of the adjusting plate (43).

7. An automated PCBA testing device according to claim 1, characterized in that, The first positioning sensor (20) is fixedly installed on the top of the support plate (21), and the input end of the suction cup (29) is fixedly connected to the conveying pipe (27).

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