CN115825688A - PCBA automatic test equipment based on domestic industrial controller - Google Patents
PCBA automatic test equipment based on domestic industrial controller Download PDFInfo
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- CN115825688A CN115825688A CN202211261322.2A CN202211261322A CN115825688A CN 115825688 A CN115825688 A CN 115825688A CN 202211261322 A CN202211261322 A CN 202211261322A CN 115825688 A CN115825688 A CN 115825688A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides PCBA automatic test equipment based on a domestic industrial controller, which is suitable for mass production PCBA test. The equipment comprises an industrial control computer, a power supply module, an acquisition module and a testing device, wherein the industrial control computer adopts an industrial-grade domestic processor, carries a domestic operating system and realizes automatic testing through a built-in testing algorithm; the power module controls the working state and the output voltage or current value by an industrial control computer; the acquisition module comprises a high-definition camera module and a voltage acquisition module and is used for acquiring appearance information and voltage information; the testing device comprises an adjustable fixing device, a movable probe, a positioning device, an automatic moving device and a code scanning device, can be automatically changed according to different PCBA sizes and test point requirements, achieves universality of testing equipment, and is bound with single testing and PCBA to be tested by the code scanning device, so that accurate tracing of a testing result is achieved.
Description
Technical Field
The invention belongs to the field of intelligent manufacturing, and particularly relates to PCBA automatic test equipment based on a domestic industrial controller.
Background
PCBA testing typically tests PCBA visual integrity and correctness, line on-off conditions, voltage and current correctness, and the like. PCBA has a lot of uncontrollable factors in the production process, and is difficult to ensure that PCBA is a perfect product, and PCBA test is a necessary link for strictly controlling shipment quality.
Traditional PCBA test is artifical visual inspection, combines the customization testing tool to carry out manual test, and it is higher to have the cost of labor, and the low scheduling problem of test result reliability exists, and the testing tool needs customize according to every PCBA moreover, and the commonality is poor, has increased test cost. As labor costs and quality requirements become higher and higher, the manner in which PCBA testing is performed has changed.
Disclosure of Invention
Aiming at the problems, the invention provides PCBA automatic test equipment based on a domestic industrial controller. An industrial control computer is adopted, a domestic operating system is carried, a test algorithm is built in, the test is automatically completed according to the PCBA information, the dependence on test result testers is reduced, and the reliability of the test result is improved. Different testing methods are set according to the PCBA information, multi-size and multi-shape PCBA testability is achieved through the adjustable device, and the universality of the testing equipment is improved.
A PCBA automatic test equipment based on a domestic industrial controller comprises:
the industrial control computer adopts a domestic processor, carries a domestic operating system, is internally provided with an automatic intelligent test algorithm, and automatically sets a test mode according to the PCBA information file so as to complete automatic test.
The power module has controllable working state and adjustable output voltage, and can realize power supply of different PCBAs.
The acquisition module, including a plurality of image acquisition's high definition camera module, voltage acquisition module, combine automatic moving device to realize all-round outward appearance information acquisition, accomplish the collection of measurable voltage on the PCBA through portable probe.
The test fixture comprises an adjustable fixing device, a movable probe, a positioning device, an automatic moving device and a code scanning device. Adapt to not unidimensional PCBA fixedly through adjustable fixing device, but the voltage acquisition of the different positions of different PCBAs is realized to the movable probe, and positioner realizes that PCBA's automation is placed and is collected, and automatic moving device realizes PCBA's rotation of different angles, sweeps a yard device and accomplishes PCBA and sweeps a yard and bind.
Furthermore, the domestic industrial control computer adopts an industrial-grade domestic processor to carry a domestic operating system, so that the data security and the autonomous controllability are improved. And is connected with the production informatization management system through a network, so that the traceability of the production process is realized.
Furthermore, the domestic industrial control computer provided by the invention is internally provided with a test program, the application interface is simple, and the automatic test can be realized by presetting the PCBA model.
Further, the PCBA information file is filed in a production informatization management system, and the file contains BOM, position number information, packaging information of each component, an omnidirectional standard diagram of a position template, coordinate information of test points, parameter reference values and the like.
Further, the domestic industrial control computer of the invention reads the corresponding PCBA information file from the production information management system according to the preset PCBA model by the automatic intelligent test algorithm, after the verification is successful, the information in the file is imported into the application program, and each device of the test device is controlled to be placed at the designated position, the mechanical arm placing plate is started, and the test program is started after the board is detected to be correctly placed.
Furthermore, the power module has controllable working state and adjustable output voltage.
Furthermore, the high-definition camera module and the voltage acquisition module are multiple.
Furthermore, the adjustable fixing device is a plurality of liftable fixing columns at different positions and is used for fixing PCBAs with different sizes.
Furthermore, in the testing device, the movable probes are a plurality of testing probes which are fixed on the jig but have telescopic lengths and rotatable angles, and the testing positions are adjusted according to testing requirements.
Furthermore, the testing device of the invention, the positioning device is a mechanical arm, and the PCBA is taken and placed according to the positioning information.
Further, in the testing apparatus of the present invention, the automatic moving means is a plurality of motors whose rotation angles are controllable, and the PCBA is detected in all directions by rotating the PCBA.
Furthermore, the code scanning device is a code scanning device connected with the production information management system, and ensures the traceability of the process.
Has the beneficial effects that:
the invention adopts an industrial control computer, carries a domestic operating system, is internally provided with a test algorithm, automatically completes the test according to the PCBA information, reduces the dependence on test result testers and improves the reliability of the test result. Different testing methods are set according to the PCBA information, multi-size and multi-shape PCBA testability is achieved through the adjustable device, and the universality of the testing equipment is improved.
Drawings
FIG. 1 is a schematic structural diagram of a PCBA automatic test device based on a domestic industrial controller according to the present invention;
FIG. 2 is a flow chart of the operation of the PCBA automatic test equipment based on the domestic industrial controller.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A domestic industrial controller based PCBA automated test equipment, as illustrated in fig. 1, comprising:
the industrial control computer is connected with the acquisition module, is arranged on the test fixture together, and is also connected with the power supply module to control the working state of the power supply module and adjust the output voltage; the acquisition module comprises a high-definition camera module and a voltage acquisition module; the test fixture comprises an adjustable fixing device, a movable probe, a positioning device and an automatic moving device. Wherein the content of the first and second substances,
the industrial control computer adopts Loongson 3A4000, carries a unified messaging operating system, is internally provided with an automatic intelligent test algorithm, and automatically sets a test mode according to a PCBA information file so as to complete automatic test;
the power module is respectively connected with the industrial control computer and the PCBA to be tested, controls the working state of the industrial control computer, regulates the output voltage and supplies proper working voltage to the PCBA;
the acquisition module comprises a plurality of high-definition camera modules for image acquisition and a voltage acquisition module, is combined with an automatic moving device to realize all-dimensional appearance information acquisition, finishes acquisition of measurable voltage on the PCBA through a movable probe, is connected with an industrial control computer, and finishes information acquisition and information feedback according to instructions of the industrial control computer;
the test fixture comprises an adjustable fixing device, a movable probe, a positioning device and an automatic moving device. Through above device with the PCBA that awaits measuring be connected, adjustable fixing device realizes that not unidimensional PCBA is fixed, but movable probe realizes the voltage acquisition of the different positions of different PCBA, and positioner realizes PCBA's automation and places and collect, and automatic moving device realizes the rotation of the different angles of PCBA, sweeps a yard device and realizes that the single test binds with the PCBA that awaits measuring to upload production management system and file, realize traceability.
The scheme of the invention also provides an automatic intelligent test algorithm built in the industrial control computer, which completes automatic test according to the PCBA information file, and the algorithm comprises the following steps:
s1: powering on equipment, automatically running a test program, and setting the model of the PCBA to be tested;
s2: according to the type of the PCBA, applying for calling an information file of the PCBA to a production information management system, wherein the information file comprises information such as BOM, bit number information, packaging information of each component, a sample plate omnibearing standard diagram, test point coordinate information, parameter reference values and the like;
s3: checking the acquired file, extracting relevant information after successful checking, and returning to the step S2 if unsuccessful for configuring relevant test information;
s4: acquiring a reference value of a corresponding test point from a parameter reference value file according to the fixed hole information (coordinates and aperture) in the file; extracting the sample plate omnibearing standard graph;
regulating and controlling the adjustable fixing device to limit the plate to be detected according to the position of the fixing hole in the file; setting corresponding fixed columns to rise to designated heights, and setting adjusting probes to move to designated positions according to a certain sequence according to the positions of voltage test points to be tested;
s5: controlling the mechanical arm to grab the board to be tested to place and designate the position, starting a high-definition camera to detect whether the board to be tested is placed correctly, automatically controlling the mechanical arm to adjust if the position deviates, and scanning and binding the board to be tested after the board to be tested is placed successfully; the mechanical arm can be selected from PR20D models of Nanjing panda electronic equipment Co., ltd, and the function realized by the mechanical arm is the prior art;
s6: the high-definition cameras on the two sides shoot pictures of the board to be detected, and after the pictures are shot, the motors on the two sides of the board to be detected are controlled to rotate by a specified angle;
s7: repeating the step S6 until all the set angles are shot;
s8: comparing and analyzing the shot picture with bit number information, component packaging information, a template omnibearing standard chart and the like in a PCBA file, and analyzing whether appearance abnormal conditions such as component abnormity (damage/wrong material/missing/multiple material), mounting abnormity (cold welding/continuous welding/solder paste overflow/different position/incorrect direction) and the like exist;
s9: if the appearance is abnormal, alarming, uploading a test result to a production information management system, finishing the test, if the appearance is abnormal, controlling a power supply module to output corresponding voltage or current, and turning on the power supply to electrify the PCBA to be tested;
s10: acquiring a voltage value of a point to be measured through a probe, analyzing whether the voltage value is abnormal or not according to corresponding information of a PCBA file and a parameter reference value file, and if the voltage value is abnormal, performing alarm reminding;
s11: and uploading the test result to a production information management system, finishing the test, and if the voltage value is abnormal, performing alarm reminding.
While the foregoing is directed to embodiments of the present invention, it is understood that various modifications may be made without departing from the spirit and scope of the invention.
Claims (7)
1. A PCBA automatic test device based on a domestic industrial controller comprises an industrial control computer, an acquisition module and a test fixture, and is characterized in that the industrial control computer is connected with the acquisition module, is arranged on the test fixture together and is connected with an adjustable power supply module; the adjustable power supply module outputs different voltage values; the acquisition module comprises a high-definition camera module and a voltage acquisition module; the test fixture comprises an adjustable fixing device, a movable probe, a positioning device, an automatic moving device and a code scanning device and is used for picking and placing the PCBA to be tested.
2. The PCBA automatic test equipment based on the domestic industrial controller as claimed in claim 1, wherein the industrial control computer adopts a domestic processor, carries a domestic operating system, is internally provided with an automatic intelligent test algorithm, and comprises the following steps:
s1: powering on equipment, automatically running a test program, and setting the model of the PCBA to be tested;
s2: according to the type of the PCBA, applying for calling an information file of the PCBA to a production information management system, wherein the file comprises a BOM file, packaging information of each component, a sample plate omnibearing standard diagram, a coordinate file and parameter reference value information;
s3: checking the acquired file, and returning to the step S2 if the file is not successful;
s4, after the verification is successful, extracting relevant information to configure relevant test information, acquiring the fixed hole information test points from the coordinate file, and acquiring corresponding test point reference values from the parameter reference value file; extracting the sample plate omnibearing standard graph;
regulating and controlling the adjustable fixing device to limit the position of the plate to be detected according to the position of the fixing hole in the file; setting an adjusting probe to move to a specified position according to a certain sequence according to the position of a voltage test point to be tested;
s5: the mechanical arm is controlled to grab the board to be tested and place the board at a designated position, a high-definition camera is started to detect whether the board to be tested is placed correctly or not, if the position deviates, the mechanical arm is automatically controlled to adjust, and after the board to be tested is placed successfully, code scanning and binding are carried out on the board to be tested;
s6: the high-definition cameras on the two sides shoot pictures of the board to be detected, and after the pictures are shot, the board to be detected is controlled to rotate by a specified angle;
s7: repeating the step S6 until all the set angles are shot;
s8: the bit number information, each components and parts encapsulation information, the all-round standard map of model in will shooing picture and PCBA file carry out comparative analysis, and whether the analysis outward appearance abnormal conditions exist includes: abnormal components and mounting;
s9: if the appearance is abnormal, carrying out alarm reminding, uploading a test result to a production information management system, finishing the test, if the appearance is abnormal, controlling a power supply module to output corresponding voltage or current, and turning on a power supply to electrify the PCBA to be tested;
s10: acquiring a voltage value of a point to be measured through a probe, analyzing whether the voltage value is abnormal or not according to corresponding information of the PCBA file and the parameter reference value file, and if the voltage value is abnormal, performing alarm reminding;
s11: and finishing the test, and uploading the test result to the production information management system.
3. The domestic industrial controller based PCBA automatic test equipment as claimed in claim 2, wherein the adjustable power supply module is used for controlling working state and output voltage.
4. The PCBA automatic test equipment based on the domestic industrial controller as claimed in claim 2, wherein the collection module comprises a plurality of high definition camera modules for image collection and a voltage collection module, and the PCBA automatic test equipment realizes all-dimensional appearance information collection and collection of measurable voltage on the PCBA.
5. The domestic industrial controller-based PCBA automatic test equipment according to claim 1, wherein the test fixture comprises an adjustable fixing device, a movable probe, a positioning device and an automatic moving device, wherein:
the adjustable fixing device is as follows: the device is used for fixing PCBAs to be detected, and is provided with a plurality of liftable fixing columns according to the common sizes of PCBAs, and the fixing columns are used for fixing PCBAs with different sizes;
a movable probe: a movable probe is fixed on the jig, the length of the movable probe can be adjusted, the movable probe can rotate, and the test position can be adjusted according to the requirement;
a positioning device: the mechanical arm is used for picking and placing the PCBA according to the positioning information;
an automatic moving device: the motors are fixed on two sides of the adjustable fixing device, and all-dimensional detection of the PCBA is realized by rotating the direction of the adjustable fixing device.
6. The automatic PCBA test equipment based on the domestic industrial controller of claim 1, wherein the test fixture further comprises a code scanning device, and the code scanning device completes PCBA code scanning binding.
7. The PCBA automatic test equipment based on the domestic industrial controller as claimed in claim 6, wherein the code scanning device is connected with the code scanning equipment of the production information management system, so that the process traceability is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211261322.2A CN115825688A (en) | 2022-10-14 | 2022-10-14 | PCBA automatic test equipment based on domestic industrial controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211261322.2A CN115825688A (en) | 2022-10-14 | 2022-10-14 | PCBA automatic test equipment based on domestic industrial controller |
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| CN115825688A true CN115825688A (en) | 2023-03-21 |
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| CN202211261322.2A Pending CN115825688A (en) | 2022-10-14 | 2022-10-14 | PCBA automatic test equipment based on domestic industrial controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117007946A (en) * | 2023-10-07 | 2023-11-07 | 深圳市拓普泰克技术股份有限公司 | Automatic test management method and related device for PCBA |
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- 2022-10-14 CN CN202211261322.2A patent/CN115825688A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117007946A (en) * | 2023-10-07 | 2023-11-07 | 深圳市拓普泰克技术股份有限公司 | Automatic test management method and related device for PCBA |
| CN117007946B (en) * | 2023-10-07 | 2023-12-22 | 深圳市拓普泰克技术股份有限公司 | Automatic test management method and related device for PCBA |
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