Circuit board automatic testing and burning tool control board
By designing automated circuit board testing and burning tool control boards, the problems of loose wiring and insensitive hydraulic devices caused by complex testing environments in the prior art are solved, and the circuit board testing is efficient and accurate.
Patent Information
- Application Number
- CN202411816419.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-04-15
AI Technical Summary
During the testing of existing circuit boards, due to the complexity of the test environment, long-term use of the control board can easily lead to loose wiring and insensitive hydraulic devices, resulting in low testing efficiency and high misjudgment rate.
Design a circuit board automatic testing and burning tool control board, including system power supply module, control module and communication module, and control hydraulic devices and communication modules on the tool board are controlled through the MCU to realize automated testing and data upload.
It effectively ensures the integrity of the circuit board circuit path and the correctness of basic functions, simplifies the test process, reduces the inefficiency and misjudgment rate of manual judgment, and improves the productivity and test efficiency and accuracy rate.
Smart Images
Figure CN119827941A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of circuit board testing, in particular to a circuit board automatic testing and burning tooling control board. Background Art
[0002] A charging pile is a device that provides electric vehicles with energy replenishment. Its function is similar to that of a gas station. It can be fixed on the ground or on the wall and installed in public buildings and residential parking lots. It can charge various types of electric vehicles according to the voltage and current. During the production of charging piles, the functions and circuits of the internal circuit boards need to be tested. With the trial production of circuit boards with control units, automatic testing of circuit boards is particularly important. The circuit continuity test and function test of each circuit board under test need to be completed automatically and uploaded to the management background for data backup. The circuit board under test is fixed to the automatic test station by a hydraulic device. On the tooling, the tooling control board directly controls the power on and off of the board under test. Through a simple adapter board, the test points on the board under test are connected to the adapter board by the ejector pins. The adapter board is connected to the tooling control board. The tooling control board sends data, the board under test receives data, and feeds back to the tooling control board in real time through the serial port whether the correct data is received, so as to judge whether the circuit of the board under test is normal. Some functional modules of the board under test can also be tested by the above method. For example, the DC-DC power supply step-down, the output voltage is sampled by ADC to judge whether the step-down of the board under test is accurate, and finally all the tested data are uploaded to the background backup through the network port of the tooling control board.
[0003] When testing existing circuit boards, due to the complexity of the test environment, the control board is prone to some problems during long-term use: for example, the wiring may be loose, the hydraulic device may be insensitive, and a circuit board automatic testing and burning tooling control board is urgently needed. Summary of the invention
[0004] The purpose of the present invention is to effectively ensure the integrity of the circuit path of the circuit board and the correctness of the basic functions of the circuit board, to greatly facilitate the testing process, to reduce the inefficiency and misjudgment rate of manual judgment, to improve production efficiency, to effectively improve the efficiency and accuracy of circuit board testing, and to provide a circuit board automatic testing and burning tooling control board.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a circuit board automatic testing and burning tool control board, the tool control board includes a system power supply, a power supply module, a control module and a communication module.
[0006] Preferably, the system power supply includes a target board DC power supply and a target board AC power supply, and the power supply module supplies power to the tooling board.
[0007] Preferably, the control module includes an MCU, and the MCU is provided with a USB interface, a TF card, a 60PIN interface, a card swiping board reserved interface, a debugging port, a Bluetooth WIFI interface, a mother fixture interface, an IO port, a barcode scanner interface and an Ethernet port.
[0008] Preferably, the low-battery charging circuit includes diodes D7 and D8, a MOS tube Q8, a relay K1, and a resistor R3, and the communication module includes Bluetooth module communication and 4G module communication.
[0009] Preferably, the USB interface provides data input and output functions, the TF card is used to store data, the IO port is an interface in the computer system for connecting external devices and transmitting data, and the Ethernet port is a port for network data connection.
[0010] Preferably, the following steps are: Step 1: Scan the barcode with a barcode scanner to confirm the information of the board under test and the project classification; Step 2: The tooling control board powers on the board under test and starts burning the test program. After burning, the DC-DC voltages of the board under test are read; Step 3: After the DC-DC test is successful, conduct a continuity test on the circuit of the board under test; Step 4: Conduct communication module circuit test on the board under test; Step 5: After all tests are completed, start burning the formal program and the test will be displayed as passed on the tooling.
[0011] Compared with the prior art, the present invention can effectively ensure the integrity of the circuit path of the circuit board and the correctness of the basic functions of the circuit board by setting up a system power supply, a power supply module, a control module and a communication module, can greatly facilitate the testing process, reduce the inefficiency and misjudgment rate of manual judgment, improve production efficiency, and effectively improve the efficiency and accuracy of circuit board testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the control program flow of the present invention; DETAILED DESCRIPTION
[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0014] In order to achieve the above-mentioned object, the present invention provides a circuit board automatic testing and burning tooling control board, the tooling control board includes a system power supply, a power supply module, a control module and a communication module, the system power supply includes a target board DC power supply and a target board AC power supply, the power supply module supplies power to the tooling board, the control module includes an MCU, and the MCU is provided with a USB interface, a TF card, a 60PIN interface, a card swiping board reserved interface, a debugging port, a Bluetooth WIFI interface, a mother fixture interface, an IO port, a barcode scanner interface and an Ethernet port, the communication module includes a Bluetooth module communication and a 4G module communication, and a 60PIN interface is provided on the MCU. PIN interfaces include DI, DO, ADC, 485, CAN and serial ports. The barcode scanner interface model is RS232. The IO port is 10pin. The USB interface provides input and output data functions. The TF card is used to store data. The IO port is an interface in the computer system used to connect external devices and transmit data. The Ethernet port is the port for network data connection. First, scan the barcode with the barcode scanner to confirm the information and project classification of the board under test. After the scan is successful, the board under test is placed on the test fixture. The hydraulic control signal of the fixture control board is used to press the hydraulic device down to fix the board under test. When the fixture control board receives the signal, the hydraulic pressure is turned on. When the pressure is in place, the board under test is powered on first. After the power is on successfully, the test program is burned into the board under test (if there is a control chip on the board under test). After the burning is completed, the DC-DC voltages of the board under test are read to see if they are correct. If they are correct, the next test is carried out. If they are not correct, the test is terminated, and the buzzer on the tooling control board is long-sounding and the error message is displayed on the display screen of the tooling to remind the operator. When the DC-DC part of the test is successful, the circuit on-off test of the board under test is then carried out; the tooling control board sends data, and when the board under test receives the data, it feeds back the voltage to the tooling control board through the serial port. If the circuit is normal, the circuit of the board under test is normal. Otherwise, it is judged that the circuit board circuit is abnormal. Finally, the communication module circuit is tested, such as Bluetooth module communication, 4G module communication, etc. When all project tests are completed, the formal program is burned (if the board under test has a formal program). After the burning is completed, the test is displayed on the tooling display screen. It can effectively ensure the integrity of the circuit board circuit path and the correctness of the basic functions of the circuit board, which can greatly facilitate the test process, reduce the inefficiency and misjudgment rate of manual judgment, improve production efficiency, and effectively improve the efficiency and accuracy of circuit board testing.
[0015] A method for automatically testing a circuit board and burning a tool control board comprises the following steps: Step 1: Scan the barcode with a barcode scanner to confirm the information of the board under test and the project classification; Step 2: The tooling control board powers on the board under test and starts burning the test program. After burning, the DC-DC voltages of the board under test are read; Step 3: After the DC-DC test is successful, conduct a continuity test on the circuit of the board under test; Step 4: Conduct communication module circuit test on the board under test; Step 5: After all tests are completed, start burning the formal program and the test will be displayed as passed on the tooling.
[0016] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A circuit board automatic testing and burning tool control board, characterized in that: The tooling control board includes a system power supply, a power supply module, a control module and a communication module.
2. A circuit board automatic testing and burning tool control board according to claim 1, characterized in that: The system power supply includes a target board DC power supply and a target board AC power supply, and the power supply module supplies power to the tooling board.
3. A circuit board automatic testing and burning tool control board according to claim 1, characterized in that: The control module includes an MCU, and the MCU is provided with a USB interface, a TF card, a 60PIN interface, a card swiping board reserved interface, a debugging port, a Bluetooth WIFI interface, a mother fixture interface, an IO port, a barcode scanner interface and an Ethernet port.
4. A circuit board automatic testing and burning tool control board according to claim 1, characterized in that: The communication module includes Bluetooth module communication and 4G module communication.
5. A circuit board automatic testing and burning tool control board according to claim 3, characterized in that: The 60-pin interface includes DI, DO, ADC, 485, CAN and serial port.
6. A circuit board automatic testing and burning tool control board according to claim 3, characterized in that: The barcode scanner interface model is RS232, and the IO port is 10pin.
7. A circuit board automatic testing and burning tool control board according to claim 3, characterized in that: The USB interface provides data input and output functions, the TF card is used to store data, the IO port is an interface in the computer system for connecting external devices and transmitting data, and the Ethernet port is a port for network data connection.
8. The method for automatic testing and burning of a circuit board control board according to claim 1, characterized in that: The following steps are involved: Step 1: Scan the barcode with a barcode scanner to confirm the information of the board under test and the project classification; Step 2: The tooling control board powers on the board under test and starts burning the test program. After burning, the DC-DC voltages of the board under test are read; Step 3: After the DC-DC test is successful, conduct a continuity test on the circuit of the board under test; Step 4: Conduct communication module circuit test on the board under test; Step 5: After all tests are completed, start burning the formal program and the test will be displayed as passed on the tooling.