Full-automatic PCBA intelligent detection system

Abstract

The utility model provides a full-automatic PCBA intelligent detection system comprising an intelligent detection tool, the intelligent detection tool comprises a tool used for installing and placing different types of PCBA boards to be detected and a tool mainboard used for detecting the performance of the PCBA boards to be detected, and the tool mainboard is electrically connected with the PCBA boards to be detected; the tool main board is electrically connected with a display terminal used for displaying detection content and sending detection requirements. And the display terminal is in communication connection with a cloud platform used for receiving a detection result. The tool provided by the utility model can accommodate different types of PCBA boards to be detected and is electrically connected with the tool mainboard, so that the different types of PCBA boards to be detected can be detected by one tool mainboard, and the detection efficiency is improved; various detections are carried out through the display terminal, detection buttons arranged on the tool are reduced, detection is facilitated, finally, storage is carried out through the cloud platform, and query of test results of various products is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB detection, and in particular to a fully automatic PCBA intelligent detection system. Background Art

[0002] Currently, the existing PCBA functional testing is generally divided into manual testing and auxiliary tooling testing. Manual testing is performed by plugging in accessories with various functions, while auxiliary tooling testing is to integrate accessories with various functions together and then assist manual testing.

[0003] Existing manual testing of plug-in components for various functions is inefficient, necessitating the use of numerous auxiliary tooling tests. In existing technology, the testing methods and evaluation results are consistent for different types of PCBAs with the same functionality. However, traditional auxiliary tooling can only test one product, which is limiting. Testing these products requires configuring a separate auxiliary tooling for each one, which is very cumbersome. Utility Model Content

[0004] The technical problem to be solved by the present invention is to solve the problem in the prior art that the auxiliary tooling test can only test one product. In order to overcome the above defects of the prior art, the present invention provides a fully automatic PCBA intelligent detection system.

[0005] The utility model provides a fully automatic PCBA intelligent detection system, including an intelligent detection tool, wherein the intelligent detection tool includes a tool for mounting and placing different types of PCBA boards to be tested, and a tool mainboard for detecting the performance of the PCBA board to be tested, wherein the tool mainboard is electrically connected to the PCBA board to be tested;

[0006] The tooling mainboard is electrically connected to a display terminal for displaying detection content and sending detection requirements; the display terminal is communicatively connected to a cloud platform for receiving detection results.

[0007] Compared with the existing technology, the fully automatic PCBA intelligent detection system proposed in this application has the following advantages: the tooling can accommodate different types of PCBA boards to be tested and is electrically connected to the tooling mainboard. A single tooling mainboard can detect different types of PCBA boards to be tested, thereby improving detection efficiency; various tests are performed through a display terminal, reducing the number of test buttons set on the tooling and facilitating detection; and finally, the test results are stored on a cloud platform, making it easy to query the test results of each product.

[0008] In one possible embodiment, the tooling includes a tooling bottom box, a work surface, and a pressing device for pressing the PCBA board to be tested onto the work surface;

[0009] The tooling mainboard is placed in the tooling base box, which is provided with a through hole. The tooling mainboard is electrically connected to the display terminal through a wiring harness passing through the through hole; a thimble is provided on the work surface, one end of the thimble is electrically connected to the tooling mainboard, and the other end of the thimble is electrically connected to the PCBA board to be tested, and the pressing device is set on the work surface.

[0010] Compared with the existing technology, the tooling base box is provided to facilitate the installation of the tooling mainboard, and the connection is performed by ejector pins, which facilitates the adaptation to different types of PCBA boards to be tested, and the electrical connection method is simpler.

[0011] In a possible implementation, the work surface is provided with accommodating slots for accommodating different types of PCBA boards to be tested.

[0012] Compared with the existing technology, different types of PCBA boards to be tested can be conveniently fixed through the accommodating groove.

[0013] In a possible implementation, the tooling mainboard includes a power input detection module for detecting power input, the power input detection module including a photocoupler, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, and a capacitor;

[0014] The positive electrode of the first diode is electrically connected to the power input terminal of the PCBA board to be tested, the negative electrode of the first diode is connected in series with the first resistor and the second resistor and is electrically connected to the positive electrode of the photoelectric coupler, the negative electrode of the photoelectric coupler is grounded, the negative electrode of the photoelectric coupler is electrically connected to the positive electrode of the second diode, the negative electrode of the second diode is electrically connected to the positive electrode of the photoelectric coupler, the emitter of the photoelectric coupler is grounded, the collector of the photoelectric coupler is electrically connected to the 5V power supply through the third resistor, the collector of the photoelectric coupler is electrically connected to the main control chip of the tooling mainboard through the fourth resistor, the collector of the photoelectric coupler is electrically connected to one end of the capacitor through the fourth resistor, and the other end of the capacitor is grounded.

[0015] Compared with the existing technology, detection is performed through a photoelectric coupler without the need for physical buttons, making detection more convenient.

[0016] In a possible implementation, the display terminal is a tablet computer, and the tooling mainboard is connected to the tablet computer via RS232 serial port communication.

[0017] In a possible implementation, the tablet computer is connected to the cloud platform via a WIFI module or a 4G module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a system block diagram of a fully automatic PCBA intelligent detection system of the utility model;

[0019] Figure 2 This is a structural diagram of a fully automatic PCBA intelligent detection system of the utility model;

[0020] Figure 3 This is the circuit diagram of the power input detection module in the fully automatic PCBA intelligent detection system of the utility model.

[0021] Description of reference numerals:

[0022] 1-intelligent detection tooling; 11-tooling; 111-tooling base box; 112-work surface; 113-pressing device; 114-accommodation slot; 12-tooling mainboard; 2-display terminal; 3-cloud platform. DETAILED DESCRIPTION

[0023] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0024] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0025] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See also Figures 1 to 3As shown, the embodiment of the present application discloses a fully automatic PCBA intelligent detection system, including an intelligent detection tool 1, the intelligent detection tool 1 includes a tool 11 for mounting and placing different types of PCBA boards to be tested, and a tool mainboard 12 for detecting the performance of the PCBA board to be tested, and the tool mainboard 12 is electrically connected to the PCBA board to be tested;

[0028] The tooling mainboard 12 is electrically connected to a display terminal 2 for displaying the test content and sending the test requirements; the display terminal 2 is communicatively connected to a cloud platform 3 for receiving the test results.

[0029] In this embodiment, the tooling 11 can accommodate different types of PCBA boards to be tested and is electrically connected to the tooling main board 12. One tooling main board 12 can test different types of PCBA boards to be tested, thereby improving the detection efficiency. Various tests are performed through the display terminal 2, reducing the number of test buttons set on the tooling 11, facilitating detection, and finally storing the test results through the cloud platform 3, making it convenient to query the test results of each product.

[0030] Among them, the tooling 11 includes a tooling base box 111, a work surface 112 and a pressing device 113 for pressing the PCBA board to be tested onto the work surface 112; the tooling main board 12 is placed in the tooling base box 111, and the tooling base box 111 is provided with a through hole. The tooling main board 12 is electrically connected to the display terminal 2 through a wiring harness passing through the through hole; a pin is provided on the work surface 112, one end of the pin is electrically connected to the tooling main board 12, and the other end of the pin is electrically connected to the PCBA board to be tested, and the pressing device 113 is set on the work surface 112.

[0031] By providing the tooling bottom box 111, it is convenient to install the tooling mainboard 12, and the connection is performed by means of ejector pins, which is convenient for adapting to different types of PCBA boards to be tested, and the electrical connection method is simpler.

[0032] The ejector pin connection method and the pressing device 113 are prior arts. The pressing device 113 can adopt air pressure or hydraulic pressure, or can be manually pressed by a machine, which will not be described in detail here.

[0033] In this embodiment, the tooling mainboard 12 is a circuit board used to test the PCBA board to be tested. Since different types of PCBA boards to be tested can be tested, and some of these different types of PCBA boards to be tested have the same functions, only one tooling mainboard 12 is needed to test these different types of PCBA boards to be tested, and the tooling mainboard 12 only has one set of programs.

[0034] The top of the tooling bottom box 111 is provided with a plurality of black tooling 11 structural parts, which can be connected to different wires. One end of these wires is electrically connected to the ejector pins, and the other end is electrically connected to the tooling main board 12. Through the tooling main board 12, different types of PCBA boards to be tested can be tested.

[0035] In this embodiment, a receiving groove 114 for receiving different types of PCBA boards to be tested is provided on the work surface 112. The receiving groove 114 facilitates fixing different types of PCBA boards to be tested.

[0036] Specifically, a receiving groove 114 may be provided, and then a telescopic structure may be provided around the receiving groove 114 to facilitate fixing the PCBA board to be tested.

[0037] In order to further facilitate the testing of different types of PCBA boards to be tested, the test points of these different types of PCBA boards to be tested need to be all set in one area, and the spacing and arrangement of each test point need to be the same. In this way, only one set of tooling 11 is needed to realize the testing of different types of PCBA boards to be tested with different specifications.

[0038] Of course, in actual design, this is not necessary. By adding an adapter plate, the test points on the PCBA board to be tested of other specifications can be transferred to the fixed test points in the tooling 11 through the adapter plate to make electrical connections without changing the entire intelligent detection tooling 1.

[0039] The tooling motherboard 12 of this embodiment is a self-developed, universally compatible intelligent detection motherboard. It has various peripherals that simulate the PCBA board under test and provides feedback detection. This ensures that all performance and functions of the PCBA board under test are detected and effective. The tooling motherboard 12 also has 4G networking capabilities, supporting remote OTA function upgrades.

[0040] In this embodiment, the tooling mainboard 12 includes a power input detection module for detecting power input, and the power input detection module includes a photocoupler, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, and a capacitor;

[0041] The positive electrode of the first diode is electrically connected to the power input terminal of the PCBA board to be tested, the negative electrode of the first diode is connected in series with the first resistor and the second resistor and is electrically connected to the positive electrode of the photoelectric coupler, the negative electrode of the photoelectric coupler is grounded, the negative electrode of the photoelectric coupler is electrically connected to the positive electrode of the second diode, the negative electrode of the second diode is electrically connected to the positive electrode of the photoelectric coupler, the emitter of the photoelectric coupler is grounded, the collector of the photoelectric coupler is electrically connected to the 5V power supply through the third resistor, the collector of the photoelectric coupler is electrically connected to the main control chip of the tooling mainboard 12 through the fourth resistor, the collector of the photoelectric coupler is electrically connected to one end of the capacitor through the fourth resistor, and the other end of the capacitor is grounded.

[0042] The detection is done through a photocoupler, eliminating the need for physical buttons, making detection more convenient. The power input detection module detects the 220V input power supply.

[0043] The display terminal 2 is a tablet computer, and the tooling mainboard 12 is connected to the tablet computer via RS232 serial port communication.

[0044] Specifically, the display terminal 2 provides the content and requirements to be tested to the tooling mainboard 12, and the tooling mainboard 12 tests the PCBA board to be tested according to the requirements. At the same time, the tooling mainboard 12 reports the detected information to the display terminal 2 through the RS232 serial port.

[0045] Display terminal 2 has the following functions:

[0046] (1) Used to issue detection instructions to the tooling mainboard 12;

[0047] (2) Present the test results (e.g., pass or fail) and specific parameters;

[0048] (3) Accept the test items given by the cloud platform 3 and configure different test UI interfaces;

[0049] (4) The test results of the PCBA board to be tested and the mainboard information of the PCBA board to be tested are reported to the cloud platform 3 for summary registration.

[0050] The tablet computer is connected to the cloud platform 3 via a WIFI module or a 4G module.

[0051] Cloud platform 3 remotely configures test items and corresponding test requirements for different products, sends this information to display terminal 2, and stores the reported test information, providing traceable test data.

[0052] In actual design, in addition to the above-mentioned tests, the system voltage points, input analog quantities, input switching quantities, output switching quantities, communications, etc. can also be tested, and the control results can also be tested.

[0053] For example, if the PCBA to be tested has a relay output function, the specific testing steps are as follows:

[0054] 1. The tablet computer sends a relay detection signal to the tooling mainboard 12 through the serial port, and the tooling mainboard 12 sends it to the PCBA board to be tested through the serial port, causing the relay on the PCBA board to output a closed signal;

[0055] 2. The tooling mainboard 12 detects an input signal (relay output of the PCBA) through the detection point on the PCBA to be tested;

[0056] 3. The tooling mainboard 12 compares the detected signal with the signal notified by the serial port to see whether they are consistent;

[0057] 4. The tooling mainboard 12 notifies the tablet computer of the comparison result through another serial port;

[0058] 5. The tablet computer displays the comparison result and sends the comparison result to the cloud platform 3 for backup.

[0059] The same is true for other test items. The functions of the PCBA board to be tested must be tested with status feedback, without the need for manual judgment, making the test more convenient and simple.

[0060] The entire fully automatic PCBA intelligent detection system of this embodiment is designed to solve the detection of PCBA boards to be tested on the factory side, realize the intelligent detection of customized products, and achieve intelligent management of detection products, detection items, detection definitions, and detection data.

[0061] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0062] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A fully automatic PCBA intelligent detection system, characterized in that: The intelligent detection tool (1) includes a tool (11) for installing and placing different types of PCBA boards to be tested, and a tool mainboard (12) for detecting the performance of the PCBA board to be tested, wherein the tool mainboard (12) is electrically connected to the PCBA board to be tested; The tooling mainboard (12) is electrically connected to a display terminal (2) for displaying test content and sending test requirements; the display terminal (2) is communicatively connected to a cloud platform (3) for receiving test results.

2. The fully automatic PCBA intelligent detection system according to claim 1 is characterized in that: The tooling (11) comprises a tooling bottom box (111), a work surface (112), and a pressing device (113) for pressing a PCBA board to be tested onto the work surface (112); The tooling mainboard (12) is placed in a tooling base box (111), a through hole is provided on the tooling base box (111), and the tooling mainboard (12) is electrically connected to the display terminal (2) via a wiring harness passing through the through hole; a thimble is provided on the work surface (112), one end of the thimble is electrically connected to the tooling mainboard (12), and the other end of the thimble is electrically connected to the PCBA board to be tested, and the pressing device (113) is arranged on the work surface (112).

3. The fully automatic PCBA intelligent detection system according to claim 2, characterized in that: The work surface (112) is provided with a receiving groove (114) for receiving different types of PCBA boards to be tested.

4. The fully automatic PCBA intelligent detection system according to claim 1, characterized in that: The tooling mainboard (12) includes a power input detection module for detecting power input, and the power input detection module includes a photoelectric coupler, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, and a capacitor; The positive electrode of the first diode is electrically connected to the power input terminal of the PCBA board to be tested, the negative electrode of the first diode is connected in series with the first resistor and the second resistor and is electrically connected to the positive electrode of the photoelectric coupler, the negative electrode of the photoelectric coupler is grounded, the negative electrode of the photoelectric coupler is electrically connected to the positive electrode of the second diode, the negative electrode of the second diode is electrically connected to the positive electrode of the photoelectric coupler, the emitter of the photoelectric coupler is grounded, the collector of the photoelectric coupler is electrically connected to a 5V power supply through a third resistor, the collector of the photoelectric coupler is electrically connected to a main control chip of a tooling mainboard (12) through a fourth resistor, the collector of the photoelectric coupler is electrically connected to one end of a capacitor through the fourth resistor, and the other end of the capacitor is grounded.

5. The fully automatic PCBA intelligent detection system according to claim 1, characterized in that: The display terminal (2) is a tablet computer, and the tooling mainboard (12) is connected to the tablet computer via RS232 serial communication.

6. The fully automatic PCBA intelligent detection system according to claim 5, characterized in that: The tablet computer is connected to the cloud platform (3) via a WIFI module or a 4G module.

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