Laser galvanometer testing system and method

Abstract

The invention relates to a laser galvanometer test system and method. The system comprises an industrial personal computer, a control card, a galvanometer, a laser, quadratic element measurement equipment and a power supply module. The industrial personal computer is connected with the control card which is connected with the galvanometer and the laser. The industrial personal computer is connected with the power supply module which is connected with power supplies of the galvanometer, the laser and the quadratic element measuring equipment; the industrial personal computer and the quadratic element measurement equipment are connected to a network; the galvanometer and the laser are controlled through a control card API interface function and a driving function; and analyzing and processing the marked graph through a quadratic element measurement equipment API interface function and a driving function. According to the invention, on-line debugging, state monitoring, abnormity analysis and troubleshooting of the laser galvanometer system are realized, problems of analysis of correlation problems of the galvanometer and the laser device and the like are solved, consumed resources are few, the method is suitable for automatic production testing of the laser galvanometer, a real-time and convenient testing method is applied to field remote monitoring and debugging, the labor cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser galvanometers, and in particular to a laser galvanometer testing system and method. Background Art

[0002] Laser galvanometers are usually used to achieve laser beam guidance control. They are one of the core components of laser processing equipment such as laser micro-processing equipment and 3D printing equipment. Laser galvanometers need to be strictly tested during the production process to ensure that various functions and performance indicators meet product design requirements. At the same time, in the actual use of laser processing equipment, in order to avoid laser galvanometer temperature drift, aging and other problems that lead to abnormal laser processing quality, it is necessary to regularly check or test the working status of the laser galvanometer to ensure that the performance indicators of the laser galvanometer are within the design range.

[0003] The current conventional method is to design a relatively complex online visual inspection and monitoring system for the laser galvanometer processing quality of laser processing equipment. However, the design of visual inspection and real-time online monitoring devices will increase the cost of the laser processing system and the complexity of software design. This method can only evaluate abnormalities from the processing effect of the laser galvanometer system, and cannot locate the specific root cause of the laser galvanometer system problem. At the same time, it cannot take into account the relationship between the diagnosing galvanometer and the laser, and cannot achieve detailed function and performance testing of the laser galvanometer.

[0004] Usually, the laser galvanometer test system needs to be combined with the laser to conduct laser processing trajectory accuracy, temperature drift and other functional, performance and reliability related tests. During the test operation, it is necessary to actually measure the laser processing trajectory to determine the processing effect, in order to verify the laser galvanometer processing accuracy, as well as indicators such as temperature drift after long-term work. Among them, the laser galvanometer temperature drift test and other partial reliability tests require continuous monitoring for 8-12 hours. Collecting and recording data manually is cumbersome and time-consuming, and is affected by human factors, and human negligence cannot be ruled out; the test method of manual duty in the operation area for a long time consumes manpower and is inefficient.

[0005] To this end, we propose a laser galvanometer testing system and method. Summary of the invention

[0006] In view of the shortcomings in the above-mentioned existing production technologies, the applicant provides a laser galvanometer testing system and method, which can be used for product function and performance testing within laser galvanometer manufacturing enterprises, and can also be used for on-site remote testing and debugging of laser galvanometers of laser processing equipment, thereby realizing online debugging of laser galvanometer systems, status monitoring, abnormality analysis, troubleshooting, and solving difficult problems such as analysis of problems related to galvanometers and lasers.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A laser galvanometer testing system, comprising:

[0009] Industrial computers, control cards, galvanometers, lasers, two-dimensional measurement equipment and power supply modules;

[0010] Among them, the industrial computer is connected to the control card, the control card is connected to the galvanometer and the laser; the industrial computer is connected to the power supply module, the power supply module is connected to the galvanometer, the laser, and the power supply of the two-dimensional measurement equipment; the industrial computer and the two-dimensional measurement equipment are both connected to the network; the control of the galvanometer and the laser is realized through the API interface function and the driving function of the control card; the marking graphics are analyzed and processed through the API interface function and the driving function of the two-dimensional measurement equipment;

[0011] The industrial computer is a server with server-side control software, and the client has client software.

[0012] It is further characterized by:

[0013] The industrial computer is directly connected to the galvanometer.

[0014] The present invention also provides a laser galvanometer testing method, comprising the following steps:

[0015] Design the service control software for the industrial computer. The industrial computer communicates with the power supply module via USB, communicates with the control card via API, communicates with the galvanometer independently via USB / SCI, and communicates with the secondary measurement equipment via API. It has exception handling function, real-time log function, and human-computer interaction GUI operation function.

[0016] Design and test computer and smart terminal client software to communicate with the server in real time;

[0017] After the tester powers on the industrial computer and power supply module, he performs remote testing through the client software in the test workspace environment.

[0018] The industrial computer sends instructions to the power supply module through USB. After receiving the instructions, the power supply module triggers the power-on and power-off actions through GPIO. The power supply module is based on the principle of shutting down high-risk devices first and turning on high-risk devices last.

[0019] Power-on command action: first power on the secondary element measurement equipment and galvanometer, then power on the laser;

[0020] Power-off command action: first power off the laser, then power off the galvanometer and two-dimensional measurement equipment.

[0021] When there is no operation for a long time, the laser will be automatically turned off and the galvanometer will stop moving.

[0022] When there is no operation for a long time, the laser power, the galvanometer power, and the two-dimensional measurement equipment power will be automatically turned off; when the galvanometer or laser does not work normally, a warning message will be actively reported to the client.

[0023] The storage of operation logs uses ms-level timestamps as unique identifiers, and automatically records important operation logs in real time for later review.

[0024] Including automatic operation mode and manual operation mode;

[0025] Automatic operation mode: set the time interval, no human operation is required, the control card API system automatically sends the galvanometer and laser working instructions at a fixed time, and the test pattern marking is completed and automatically transmitted to the two-dimensional measurement equipment, and the marking results are measured and analyzed through the two-dimensional API;

[0026] Manual operation mode: The tester manually controls the galvanometer, laser operation, and two-dimensional analysis and processing on the interface.

[0027] GUI with remote access: including "Laser galvanometer-laser-2D" power on and off operation portal, "Laser galvanometer-laser" control operation portal, "2D" operation portal, galvanometer individual control portal, and log viewing portal.

[0028] The client software forms include direct browser access, Windows desktop software with built-in web engine, and smart terminal software with built-in web engine.

[0029] The beneficial effects of the present invention are as follows:

[0030] The present invention has a compact and reasonable structure and is easy to operate. It can be used for product function and performance testing within laser galvanometer manufacturing companies, and can also be used for on-site remote testing and debugging of laser galvanometers of laser processing equipment, to achieve online debugging of the laser galvanometer system, status monitoring, abnormal analysis, troubleshooting, and solving difficult problems such as analysis of problems related to galvanometers and lasers. The designed laser galvanometer test system and method can be networked with the actual laser processing trajectory detection equipment of the laser galvanometer to complete the automatic collection and analysis of test data. The laser galvanometer test system and method is a convenient real-time testing method that consumes few resources and is suitable for automated production testing of laser galvanometers, remote monitoring and debugging of application sites, reducing labor costs and improving work efficiency.

[0031] At the same time, the present invention also has the following advantages:

[0032] (1) Provides a simple laser galvanometer automatic testing system and method. It can automatically record the operation log, which is convenient for future test comparison and other review work. There is no need to manually record the operation process. It can automatically measure and analyze the marking results without manual operation.

[0033] (2) It can automatically cut off the power supply of the equipment to reduce resource waste. The test can be carried out at any time in any place where the network is accessible. It can be easily expanded to automatically test different types of laser galvanometer test environments.

[0034] (3) It can be easily expanded to automatically test multiple laser galvanometer test environments at the same time. It can be easily expanded to remote real-time automatic control for production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall process of the present invention.

[0036] Figure 2 This is a schematic diagram of the connection between the industrial computer and the control card, galvanometer, laser, etc. of the present invention.

[0037] Figure 3 It is a schematic diagram of the development environment of the present invention.

[0038] Figure 4 It is a schematic diagram of power on and off control of the present invention.

[0039] Figure 5 This is a schematic diagram of the control card of the present invention controlling the galvanometer and the laser.

[0040] Figure 6 It is a schematic diagram of abnormal operation processing of the present invention.

[0041] Figure 7 This is a log storage schematic diagram of the present invention.

[0042] Figure 8 It is a schematic diagram of the automatic operation mode of the present invention.

[0043] Fig. 9 It is a schematic diagram of the remote access GUI of the present invention.

[0044] Fig.10 A schematic diagram of a test system controlled by a client of the present invention.

[0045] Fig.11 This is a schematic diagram of a client controlling two groups of test systems of the present invention. DETAILED DESCRIPTION

[0046] The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

[0047] like Figure 1-Figure 11 As shown, a laser galvanometer test system includes an industrial computer, a control card, a galvanometer, a laser, a power supply module and a secondary element measurement device.

[0048] like Figure 2As shown, the industrial computer carries USB, PCI, network card interface, etc. The network card can be wired or wireless. The PCI interface is connected to the control card, and the corresponding interface of the control card is connected to the galvanometer and laser. The USB interface is connected to the power supply module, and the power supply module is used to control the power on and off of the galvanometer, laser, and two-dimensional measurement equipment respectively. When the galvanometer itself has external communication capabilities such as SCI / USB, the industrial computer is connected to the galvanometer. The two-dimensional measurement equipment is connected to the network.

[0049] Network card interfaces include the networks used in daily office environments, wired Ethernet, and WiFi wireless networks.

[0050] like Figure 3 As shown, the tester can perform the test operation remotely through the test computer. The tester can perform the test operation remotely through the intelligent terminal.

[0051] The industrial computer is used as the server to deploy the server control software. The test computer or smart terminal is used as the client to deploy the client software.

[0052] like Figure 4 As shown, the industrial computer sends instructions to the power supply module through USB, and the power supply module triggers power-on and power-off actions through GPIO. The principle is to shut down high-risk devices first and open high-risk devices last, and execute according to the following rules:

[0053] Power-on command action: Power on the secondary measurement device and galvanometer first, then power on the laser. If the laser power-on command is sent first, the power supply module refuses to execute the command and returns an error.

[0054] Power-off command action: first power off the laser, then power off the galvanometer and the two-dimensional measurement device. If the power-off command of the galvanometer or the two-dimensional measurement device is sent first, the power supply module refuses to execute the command and returns an error.

[0055] like Figure 5 As shown, the control of the galvanometer and laser is realized through the control card API interface function / driver function.

[0056] The marked graphics are analyzed and processed through the API interface function / driver function of the two-dimensional measurement equipment.

[0057] like Figure 6 As shown, when there is no operation for a long time, the laser is automatically turned off and the galvanometer action is stopped; when there is no operation for a longer time, the laser power supply, the galvanometer power supply, and the power supply of the two-dimensional measurement equipment are automatically turned off.

[0058] When an abnormal situation occurs where the galvanometer or laser does not work properly, a warning message is proactively reported to the client.

[0059] like Figure 7As shown in the figure, the storage of operation logs uses ms-level timestamps as unique identifiers, and automatically records important operation logs in real time for later review.

[0060] Provide "automatic operation mode" and "manual operation mode";

[0061] like Figure 8 As shown, automatic operation mode: set the time interval, no human operation is required, and the control card API system automatically sends the galvanometer and laser working instructions at a fixed time. After the test pattern is marked, it is automatically transmitted to the two-dimensional measurement equipment, and the marking results are measured and analyzed through the two-dimensional API.

[0062] Manual operation mode: The tester manually controls the galvanometer, laser operation, two-dimensional analysis and processing on the interface.

[0063] like Fig. 9 As shown, a remotely accessible GUI is provided: providing a power-on and power-off operation portal for "laser galvanometer-laser-secondary element". Providing a control operation portal for "laser galvanometer-laser". Providing a "secondary element" operation portal. Providing a separate galvanometer control portal. Providing a log viewing portal.

[0064] Client software, access directly via browser. Windows desktop software with built-in web engine. Intelligent terminal software with built-in web engine.

[0065] The present invention also provides a laser galvanometer testing method, comprising the following steps:

[0066] The industrial computer is connected to the control card, and the control card is connected to the galvanometer and the laser; the industrial computer can be connected to the galvanometer;

[0067] The industrial computer is connected to the power supply module, and the power supply module is connected to the galvanometer, laser and two-dimensional measurement equipment;

[0068] Industrial computers are connected to the network, and two-dimensional measurement equipment is connected to the network;

[0069] Design the service control software for the industrial computer. The industrial computer communicates with the power supply module via USB, communicates with the control card via API, communicates with the galvanometer independently via USB / SCI, and communicates with the secondary measurement equipment via API. It has exception handling function, real-time log function, and human-computer interaction GUI operation function.

[0070] Design and test computer and smart terminal client software to communicate with the server in real time;

[0071] After the tester powers on the industrial computer and power supply module, he performs remote testing through the client software in the test workspace environment.

[0072] In one embodiment, the tester powers on the industrial computer and the power supply module.

[0073] The tester opens the client software on the test computer and powers on the galvanometer, laser, and two-dimensional measurement equipment in turn.

[0074] Set the automatic operation mode, send the graphic marking command to the control card every 30 minutes, the "laser galvanometer-laser" action, carry out the marking operation, and automatically perform the secondary element analysis after the marking is completed, and store the marking operation log. It can work continuously for 24 hours.

[0075] When the working time is over and there is no action for a long time, the server automatically sends a stop working command to the "laser galvanometer-laser" to stop the power supply to the galvanometer, laser, and two-dimensional equipment.

[0076] The tester checked the log and found that the marking results had deviations exceeding the threshold. He believed that the performance of the galvanometer had deteriorated and that temperature drift or zero drift abnormalities might have occurred.

[0077] In one embodiment, the tester powers on the industrial computer and the power supply module.

[0078] The tester opens the client software on the test computer.

[0079] The tester operates on the interface to power on the laser galvanometer and laser.

[0080] The tester operates on the interface and sends marking instructions to the control card.

[0081] The tester operates on the interface, turns on the power of the two-dimensional measurement equipment, and analyzes the marking results. If the results are not ideal, adjust the control parameters and re-mark.

[0082] In one embodiment, the tester powers on the industrial computer and the power supply module.

[0083] The tester opens the client software on the smart terminal and performs various operations.

[0084] The present invention provides a simple laser galvanometer automatic testing system and method. It can automatically record the operation log, which is convenient for future test comparison and other review work. There is no need to manually record the operation process. It can automatically measure and analyze the marking results without manual operation. It can automatically cut off the power supply of the equipment to reduce resource waste. The test can be performed at any time in any place where the network is accessible. It can be easily expanded to automatically test different types of laser galvanometer test environments. It can be easily expanded to automatically test multiple laser galvanometer test environments at the same time. It can be easily expanded to remote real-time automatic control for production environments. That is, it can be used for product function and performance testing within laser galvanometer production enterprises, and can also be used for on-site remote testing and debugging of laser galvanometers of laser processing equipment, to achieve online debugging of laser galvanometer systems, status monitoring, abnormal analysis, troubleshooting, and solving problems such as analysis of galvanometer and laser correlation problems. The designed laser galvanometer test system and method can be networked with actual laser processing trajectory detection equipment (such as two-dimensional measurement equipment) of laser galvanometers to complete automatic collection and analysis of test data.

[0085] The laser galvanometer testing system and method of the present invention is a convenient real-time testing method that consumes few resources and is suitable for automated production testing of laser galvanometers, remote monitoring and debugging of application sites, thereby reducing labor costs and improving work efficiency.

[0086] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A laser galvanometer test system, characterized in that: include: Industrial computers, control cards, galvanometers, lasers, two-dimensional measurement equipment and power supply modules; Among them, the industrial computer is connected to the control card, the control card is connected to the galvanometer and the laser; the industrial computer is connected to the power supply module, the power supply module is connected to the galvanometer, the laser, and the power supply of the two-dimensional measurement equipment; the industrial computer and the two-dimensional measurement equipment are both connected to the network; the control of the galvanometer and the laser is realized through the API interface function and the driving function of the control card; the marking graphics are analyzed and processed through the API interface function and the driving function of the two-dimensional measurement equipment; The industrial computer is a server with server-side control software, and the client has client software.

2. A laser galvanometer test system as claimed in claim 1, characterized in that: The industrial computer is directly connected to the galvanometer.

3. A laser galvanometer testing method, using a laser galvanometer testing system according to any one of claims 1 to 2, characterized in that: The steps include: Design the service control software for the industrial computer. The industrial computer communicates with the power supply module via USB, communicates with the control card via API, communicates with the galvanometer independently via USB / SCI, and communicates with the secondary measurement equipment via API. It has exception handling function, real-time log function, and human-computer interaction GUI operation function. Design and test computer and smart terminal client software to communicate with the server in real time; After the tester powers on the industrial computer and power supply module, he performs remote testing through the client software in the test workspace environment.

4. A laser galvanometer testing method as claimed in claim 3, characterized in that: The industrial computer sends instructions to the power supply module through USB. After receiving the instructions, the power supply module triggers the power-on and power-off actions through GPIO. The power supply module is based on the principle of shutting down high-risk devices first and turning on high-risk devices last. Power-on command action: first power on the two-dimensional measurement equipment and the galvanometer, and then power on the laser; power-off command action: first power off the laser, and then power off the galvanometer and two-dimensional measurement equipment.

5. A laser galvanometer testing method as claimed in claim 4, characterized in that: When there is no operation for a long time, the laser will be automatically turned off and the galvanometer will stop moving.

6. A laser galvanometer testing method as claimed in claim 5, characterized in that: When there is no operation for a long time, the laser power, the galvanometer power, and the two-dimensional measurement equipment power will be automatically turned off; when the galvanometer or laser does not work normally, a warning message will be actively reported to the client.

7. A laser galvanometer testing method as claimed in claim 6, characterized in that: The storage of operation logs uses ms-level timestamps as unique identifiers, and automatically records important operation logs in real time for later review.

8. A laser galvanometer testing method as claimed in claim 3, characterized in that: Including automatic operation mode and manual operation mode; Automatic operation mode: set the time interval, no human operation is required, the control card API system automatically sends the galvanometer and laser working instructions at a fixed time, and the test pattern marking is completed and automatically transmitted to the two-dimensional measurement equipment, and the marking results are measured and analyzed through the two-dimensional API; Manual operation mode: The tester manually controls the galvanometer, laser operation, and two-dimensional analysis and processing on the interface.

9. A laser galvanometer testing method as claimed in claim 8, characterized in that: GUI with remote access: including "Laser Galvanometer-Laser-2D" power on and off operation portal, "Laser Galvanometer-Laser" control operation portal, "2D" operation portal, galvanometer individual control portal, and log viewing portal.

10. A laser galvanometer testing method as claimed in claim 9, characterized in that: The client software forms include direct browser access, Windows desktop software with built-in web engine, and smart terminal software with built-in web engine.

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