Coupling jet quality detection device and detection method

Abstract

The invention provides a coupled jet flow quality detection device, a coupled jet flow quality detection method, a coupled jet flow quality detection system and a computer readable storage medium. The quality detection device for the coupling jet flow comprises a light-transmitting workpiece simulation piece which is located at the cross section position of the coupling jet flow; the first sensor is positioned below the light-transmitting workpiece simulation piece and is used for analyzing the light beam quality of the coupled jet flow; and the second sensor is positioned obliquely above the light-transmitting workpiece simulation piece and is used for acquiring image and / or video data of the coupled jet flow. According to the quality detection device for the coupling jet flow, the quality state of the light-water-gas coupling jet flow can be effectively detected, so that the situation that a machined workpiece is scrapped due to the stability problem of the coupling micro jet flow is avoided, the machining efficiency is improved, and losses generated by machining are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water-guided laser, and in particular to a coupling jet quality detection device, a coupling jet quality detection method, a coupling jet quality detection system, and a computer readable storage medium. BACKGROUND

[0002] Water-guided laser technology is widely used in the field of processing, and materials are processed through the phenomenon that laser propagates in water beam. For example, water-guided short pulse ns laser (green light 532 nm wavelength, near infrared 1064 nm wavelength) has a significant technical advantage when processing CMC (Ceramic Matrix Composites, ceramic matrix composite) materials. During the pulse interval, the water jet can flush away the by-products of processing and cool the heat-affected zone of the substrate, thereby obtaining a low-thermal-damage processing effect.

[0003] Please refer to Figure 1 , Figure 1 A schematic diagram of an existing water-guided laser device is shown.

[0004] As shown in Figure 1 , the pressure of high-pressure water (degassed ultrapure water) is 5-80 MPa, which enters the water-filled chamber 110 of the water-guided laser device 100 through the high-pressure water inlet 101, and generates a capillary laminar water jet 140 through the high-pressure water nozzle 111. The diameter of the nozzle 111 is 10-200 μm. A transparent protective window 112 is also embedded at the top of the water-filled chamber 110 for transmitting laser. Protective gas enters the water-guided laser device 100 through the protective gas inlet 102, and forms a coaxial protective gas flow through the gas nozzle 120 to surround the water jet 140, thereby reducing the disturbance from the ambient atmosphere and increasing the coherence length of the water jet 140. After the original divergent laser 131 is expanded and collimated, it is accurately focused at the center of the aperture of the nozzle 111 that generates the water jet 140 through the focusing objective lens 132 (a series of lenses and mirrors). After the laser beam passes through the nozzle 111, it is guided inside the water jet 140 in the form of total internal reflection at the water-air interface. The guided laser beam is guided to the surface of the workpiece 150 in the cylindrical water jet 140, and the guided laser beam is dispersed and absorbed on the material surface, the generated heat melts and evaporates the ablation area, and the by-products of material ablation are carried away by the water jet 140, while the water jet 140 cools the ablation area.

[0005] Please refer to Figure 2 , Figure 2 A schematic diagram of the water jet in the existing water-guided laser device is shown.

[0006] As shown in Figure 2As shown, the water-guided laser device can form a stable water jet based on the principle of fluid dynamics, which sprays, extends and finally impacts the workpiece 150 in the impact area 151. The water jet includes four flow areas: the water layer flow field 141 formed by the compressed water layer flow in the water-filled chamber 110, the water jet generation area 142, the free water jet area 143 and the impact water jet area 144.

[0007] In the water layer flow field 141, water reaches the water-filled chamber 110 from all directions without turbulence. Then, in the water jet generation area 142, in order to guide the laser energy to the workpiece 150, the water jet compressed via the water layer flow field 141 is coupled with the laser at the coupling point 113 and flows out of the nozzle 111, forming a fine optical water jet fiber. The free water jet area 143 limits the working distance of the water-guided laser. Within this working distance, the water jet has a stable and constant diameter, and the laser energy can be effectively transmitted, and the transmitted laser spot also presents a stable circular shape within this range. Here, in order to effectively transmit the laser energy, the shape of the water jet is close to a cylinder with a smooth interface, forming total internal reflection at the water-air interface. The water flow and water spray present a laminar flow state and are free of bubbles and particles to increase the uniform light waveguide path. Thus, the longer the stable length of the free water jet area 143, the longer the working distance can be provided, thereby realizing the deep hole machining capability. In addition, a finer water jet diameter is also a necessary condition for high-precision machining. In addition, the physical properties of water, temperature, turbulence, particles and bubbles in water, and the surrounding environment also have a significant impact on the stability of the water jet. Finally, the impact of the water jet on the workpiece 150 in the impact area 151 forms the impact water jet area 144, where a large amount of liquid is broken down into droplets under the action of internal and external forces, and in this process, the fluid breaks, forming a wall jet 145 above the workpiece 150.

[0008] During the above water jet flow process, if the laser and water jet fail to couple, it will cause the laser to fail to form total reflection in the water jet and cause the nozzle of the coupling cavity to be ablated and damaged, further deteriorating the coupling quality of the light water. In addition, poor air-water coupling quality will shorten the stable length in the free water jet area, and the stability of the wall jet will also be affected. Therefore, the quality state of the light water air coupling is very important for processing efficiency and processing time.

[0009] The present application provides a coupling jet quality detection technology, which can effectively detect the quality state of the light water air coupling jet to avoid the rejection of the processed workpiece due to the stability problem of the coupled micro jet, improve the processing efficiency and reduce the processing loss. SUMMARY

[0010] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

[0011] The present application provides a coupling jet quality detection device, a coupling jet quality detection method, a coupling jet quality detection system, and a computer readable storage medium, which can effectively detect the quality state of the light-water-gas coupling jet, so as to avoid the rejection of the processed workpiece due to the stability problem of the coupling microjet, improve the processing efficiency, and reduce the loss generated by processing.

[0012] Specifically, the coupling jet quality detection device provided by the first aspect of the present application comprises: a light-transmissible workpiece simulation piece located at a cross-sectional position of the coupling jet; a first sensor located below the light-transmissible workpiece simulation piece and used for analyzing the light beam quality of the coupling jet; and a second sensor located obliquely above the light-transmissible workpiece simulation piece and used for acquiring image and / or video data of the coupling jet.

[0013] Preferably, in an embodiment of the present application, the light-transmissible workpiece simulation piece comprises a flat plate type, a concave row and / or a convex type.

[0014] Preferably, in an embodiment of the present application, the first sensor and the second sensor maintain a relatively fixed pose relationship.

[0015] Preferably, in an embodiment of the present application, the light-transmissible workpiece simulation piece, the first sensor and the second sensor maintain a relatively fixed pose relationship.

[0016] Preferably, in an embodiment of the present application, the first sensor comprises a laser beam sensor.

[0017] Preferably, in an embodiment of the present application, the laser beam sensor comprises a laser power meter and a spot quality analyzer.

[0018] Preferably, in an embodiment of the present application, the laser beam sensor comprises a laser power meter, a microscope objective lens and an industrial CCD camera.

[0019] Further, the above-mentioned method for detecting quality of coupled jet according to the second aspect of the present application comprises the steps of: obtaining metadata of the device for detecting quality of coupled jet provided by any one of the above-mentioned embodiments, wherein the metadata comprises distance between the light-transmissible workpiece analog and the nozzle of the coupling cavity, relative pose information between the first sensor and the second sensor; obtaining laser beam energy data by the first sensor and obtaining image and / or video data of the coupled jet by the second sensor; and judging the quality state of the coupled jet according to the metadata, the laser beam energy data and the image and / or video data of the coupled jet.

[0020] Preferably, in an embodiment of the present application, the method further comprises the steps of: adjusting the distance between the light-transmissible workpiece analog and the nozzle of the coupling cavity, and obtaining the metadata, the laser beam energy data and the image and / or video data of the coupled jet at different distances respectively, so as to comprehensively judge the quality state of the coupled jet.

[0021] Preferably, in an embodiment of the present application, the method further comprises the steps of: obtaining the metadata, the laser beam energy data and the image and / or video data of the coupled jet at different time instants, so as to comprehensively judge the quality state of the coupled jet.

[0022] Further, the above-mentioned system according to the third aspect of the present application comprises a memory and a processor. The memory stores computer instructions. The processor is connected to the memory and is configured to execute the computer instructions stored in the memory to implement the above-mentioned method for detecting quality of coupled jet according to the second aspect of the present application.

[0023] Further, the above-mentioned computer readable storage medium according to the fourth aspect of the present application stores computer instructions. The computer instructions are executed by a processor to implement the above-mentioned method for detecting quality of coupled jet according to the second aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above features and advantages of the present application will be better understood through the following detailed description of embodiments of the present application in conjunction with the attached drawings. In the drawings, components are not necessarily drawn to scale and components of similar or identical function or structure can be designated with the same or similar reference numerals.

[0025] Figure 1 A schematic diagram of an existing water-guided laser device is shown;

[0026] Figure 2 A schematic diagram of a water jet in an existing water-guided laser device is shown;

[0027] Figure 3A schematic diagram of a quality detection device of coupled jet flow provided according to some embodiments of the present application is shown; and

[0028] Figure 4 A flow chart of a quality detection method of coupled jet flow provided according to some embodiments of the present application is shown.

[0029] Reference signs:

[0030] 100: water guide laser device;

[0031] 101: high pressure water inlet;

[0032] 102: protective gas inlet;

[0033] 110: water filling chamber;

[0034] 111: nozzle;

[0035] 112: protective window;

[0036] 113: coupling point;

[0037] 120: gas nozzle;

[0038] 131: original divergent laser;

[0039] 132: focusing objective;

[0040] 140: water jet flow;

[0041] 141: water laminar flow field;

[0042] 142: water jet flow generating area;

[0043] 143: free water jet flow area;

[0044] 144: impinging water jet flow area;

[0045] 145: wall surface jet flow;

[0046] 150: workpiece;

[0047] 151: impinging area;

[0048] 300: quality detection device of coupled jet flow;

[0049] 310: light-transmissive workpiece analog;

[0050] 320: first sensor;

[0051] 320: second sensor;

[0052] 340: coupling cavity nozzle;

[0053] 350: Coupling jet;

[0054] 400: Method for detecting quality of coupling jet;

[0055] L: Distance; and

[0056] S410-S430: Steps. DETAILED DESCRIPTION

[0057] The present application will be described in detail below with reference to the drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are merely exemplary and should not be understood as limiting the scope of protection of the present application.

[0058] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In addition, "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical" used in the following description should be understood as the orientation shown in the section and the related drawings. The relative terms are only for the convenience of description, and do not mean that the device described should be manufactured or operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0060] It can be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components, regions, layers and / or parts, these components, regions, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers and / or parts. Therefore, the first component, region, layer and / or part discussed below can be referred to as the second component, region, layer and / or part without departing from some embodiments of the present application.

[0061] As described above, during the flow of water jet, if the laser and water jet fail to be coupled, it will result in that the laser cannot form total reflection in the water jet and cause the nozzle of the coupling cavity to be ablated and damaged, further deteriorating the coupling quality of light and water. In addition, poor air-water coupling quality will shorten the stable length in the free water jet area, and the stability of the wall jet will also be affected. Therefore, the light-water-air coupling quality state is very important for processing efficiency and processing time.

[0062] The application provides a coupling jet quality detection device, a coupling jet quality detection method, a coupling jet quality detection system and a computer readable storage medium, which can effectively detect the quality state of a light-water-gas coupling jet, avoid the rejection of a processed workpiece due to the stability problem of the coupling micro jet, improve the processing efficiency and reduce the loss caused by processing.

[0063] Please refer to Figure 3 , Figure 3 A schematic diagram of a coupling jet quality detection device provided by some embodiments of the application is shown.

[0064] As shown in Figure 3 , the coupling jet quality detection device 300 can include a light-transmissive workpiece analog 310, a first sensor 320 and a second sensor 330.

[0065] The light-transmissive workpiece analog 310 is located below a coupling cavity nozzle 340 of a water-guided laser device, and the distance between the light-transmissive workpiece analog and the coupling cavity nozzle is L. The coupling jet 350 generated by the coupling cavity nozzle 340 impacts the light-transmissive workpiece analog 310, forming an impact water jet on the surface of the light-transmissive workpiece analog 310, and the light-transmissive workpiece analog 310 is arranged at the cross-sectional position of the coupling jet 350. Preferably, the geometric shape of the light-transmissive workpiece analog 310 can include a flat plate type, a concave surface and / or a convex type. Here, the light-transmissive workpiece analog 310 is transmissive to the laser wavelength used by the water-guided laser device. The water-guided laser device can use a diode-pumped solid-state laser (DPSS) or a fiber laser, with a wavelength of 1064 nm, 532 nm or 355 nm; and the laser pulse width can be selected from a range of 1-500 ns ns pulse laser.

[0066] Through the light-transmissive workpiece analog 310, the coupling jet quality detection device can simulate the jet shape after the coupling jet 350 interacts with the light-transmissive workpiece analog 310. At the same time, the first sensor 320 located below the light-transmissive workpiece analog 310 can directly collect the laser transmitted by the light-transmissive workpiece analog 310 to analyze the beam quality of the coupling jet 350.

[0067] The laser in the coupling jet 350 passes through the light-transmissive workpiece analog 310 and is collected by the first sensor 320 located below the light-transmissive workpiece analog 310. The data collected by the first sensor 320 can be energy distribution signal data, image and / or video data.

[0068] Preferably, the first sensor 320 can be a laser beam sensor via which the laser is received to form image and / or video data, so as to realize analysis of the beam quality of the coupling jet 350. Here, the laser beam sensor can be a laser power meter and a speckle quality analyzer; the laser beam sensor can also be a laser power meter, a microscope objective and an industrial CCD (charge coupled device) camera, so as to obtain a high-power image of the laser speckle particle morphology, i.e. intensity distribution data of the optical mode. Preferably, the magnification of the microscope objective is greater than 10 times.

[0069] The quality detection device 300 of the coupling jet can further include a second sensor 330 located obliquely above the light-transmissive workpiece analog 310, and the second sensor 330 can include a paraxial vision sensor or an industrial camera sensor. The second sensor 330 is obliquely above the impact jet area and towards the surface of the light-transmissive workpiece analog 310 to obtain image and / or video data of the impact water jet formed on the surface of the light-transmissive workpiece analog 310. Based on the second sensor 330, the quality detection device 300 of the coupling jet can realize dynamic stability detection of the morphology of the high-speed light-water gas coupling micro-jet.

[0070] The image and / or video data obtained by the second sensor 330 can be image and / or video data independently collected, or can be image and / or video data related to the image and / or video data obtained by the first sensor 320.

[0071] Specifically, the image and / or video data related to the image and / or video data obtained by the first sensor 320 and obtained by the second sensor 330 can be image and / or video data collected when the first sensor 320 and the second sensor 330 maintain a relatively fixed pose relationship. The first sensor 320 and the second sensor 330 can be fixed together by a tool to maintain a relatively fixed pose relationship.

[0072] Further, the first sensor 320 and the second sensor 330 can also be fixed by a tool to maintain a relatively fixed pose relationship with the light-transmissive workpiece analog 310. Thus, the image and / or video data related to the image and / or video data obtained by the first sensor 320 and obtained by the second sensor 330 can also be image and / or video data collected when the light-transmissive workpiece analog 310, the first sensor 320 and the second sensor 330 maintain a relatively fixed pose relationship.

[0073] In addition, the image and / or video data acquired by the second sensor 330 in relation to the image and / or video data acquired by the first sensor 320 can also be image and / or video data acquired by the first sensor 320 and the second sensor 330 at the same time, i.e. image and / or video data acquired by the first sensor 320 and the second sensor 330 when being synchronously controlled to acquire.

[0074] The working principle of the coupling jet quality detection device will be described below in combination with some embodiments of the coupling jet quality detection method. Those skilled in the art can understand that the embodiments of the coupling jet quality detection method are only some non-limiting embodiments provided by the present application, which are intended to clearly show the main concept of the present application and provide some specific schemes for facilitating the public to implement, but not to limit the overall function or overall working mode of the coupling jet quality detection device. Similarly, the coupling jet quality detection device is also only a non-limiting embodiment provided by the present application, which does not limit the execution subject and execution order of each step in the coupling jet quality detection method.

[0075] In some non-limiting embodiments, the above-mentioned coupling jet quality detection method provided by the second aspect of the present application can be implemented via the above-mentioned coupling jet quality detection system provided by the third aspect of the present application. Specifically, the coupling jet quality detection system can be configured with a memory and a processor. The memory includes but is not limited to the above-mentioned computer readable storage medium provided by the fourth aspect of the present application, and the computer instructions are stored on the computer readable storage medium. The processor is connected to the memory and is configured to execute the computer instructions stored on the memory to implement the coupling jet quality detection method provided by the second aspect of the present application.

[0076] Please refer to Figure 4 , Figure 4 A flowchart of the coupling jet quality detection method according to some embodiments of the present application is shown.

[0077] When those skilled in the art need to detect the quality or stability of the coupling jet generated by the water guide laser device, the coupling jet quality detection device can be placed at the cross-sectional position of the coupling jet to collect data.

[0078] As Figure 4 shown, the coupling jet quality detection method 400 can include the step S410 of acquiring the metadata of the coupling jet quality detection device, the metadata including the distance of the light-transmissive workpiece analog from the coupling cavity nozzle, and the relative pose information of the first sensor and the second sensor.

[0079] The data acquisition includes recording the metadata of the quality detection device coupled with the jet flow, such as the distance L of the light-transmissive workpiece analog relative to the coupling cavity nozzle; or the relative pose information of the first sensor and the second sensor, more preferably, the metadata can include the relative pose information of the light-transmissive workpiece analog, the first sensor and the second sensor; the metadata can also include the category of the light-transmissive workpiece analog, where the category of the light-transmissive workpiece analog can be classified as flat, concave and / or convex according to the geometric structure; the metadata can also include the time of the data collected by the first sensor and the second sensor.

[0080] The quality detection method 400 of the coupled jet flow can include step S420: acquiring laser beam energy data by the first sensor and acquiring image and / or video data of the coupled jet flow by the second sensor.

[0081] The data acquisition also includes collecting laser beam energy data by the first sensor and collecting image and / or video data of the coupled jet flow by the second sensor. Here, the laser beam energy data can be intensity distribution data or image and / or video data of the optical mode.

[0082] The quality detection method 400 of the coupled jet flow can include step S430: determining the quality state of the coupled jet flow according to the metadata, the laser beam energy data and the image and / or video data of the coupled jet flow.

[0083] The metadata, the laser beam energy data and the image and / or video data of the coupled jet flow can be combined into structured data, and the quality detection system of the coupled jet flow determines the quality state of the coupled jet flow according to the structured data. The quality detection system of the coupled jet flow can quantitatively evaluate the stability of the coupled jet flow based on the average value and the standard deviation of the data in the specified window area of the collected image signal, or analyze and determine the stability of the coupled jet flow based on the time-varying signal data. In addition, the quality detection system of the coupled jet flow can also set a higher confidence to quantitatively evaluate the stability of the coupled jet flow, thereby improving the accuracy of the determination result of the quality state.

[0084] In a preferred embodiment, the calculation and determination of the quality state of the coupled jet flow can be based on a comparison determination based on the atlas of the stable coupled jet flow. The atlas can be created by collecting various types of data in the state where the coupled jet flow can be stably processed. When there is a significant difference between the combined structured data and the atlas, the quality detection system of the coupled jet flow can determine that the coupled jet flow has stability problems and the quality state is not good.

[0085] The quality state of the coupling jet can be determined based on statistical analysis of the metadata, laser beam energy data and image and / or video data of the coupling jet at a single time point, such as the energy distribution intensity and width statistics obtained by the first sensor.

[0086] The quality state of the coupling jet can also be determined based on statistical analysis of the changes in the structured data or the various data (metadata, laser beam energy data and image and / or video data of the coupling jet) at different time points or at different distances L. For example, the higher the consistency index of the image data at different time points, the more stable the surface coupling jet. For another example, the quality state of the coupling jet can be determined by the changes in the beam energy intensity value or the distribution range.

[0087] Preferably, the quality detection system of the coupling jet adjusts the distance between the light-transmissive workpiece simulation and the coupling cavity nozzle, i.e., adjusts the distance L to make the light-transmissive workpiece simulation located at different cross-sectional positions of the coupling jet, and then obtains the metadata, laser beam energy data and image and / or video data of the coupling jet at different distances L to comprehensively determine the quality state of the coupling jet. In another preferred embodiment, the quality detection system of the coupling jet can also obtain the metadata, laser beam energy data and image and / or video data of the coupling jet at different time points at the same cross-sectional position, or at different time points at different cross-sectional positions, to comprehensively determine the quality state of the coupling jet.

[0088] In summary, the quality detection device and method of the coupling jet provided by the present application can be used for performance monitoring of the coupling cavity nozzle of the water-guided laser processing equipment, and can detect the quality state of the free water jet, the impact area water jet and the wall surface jet at different cross-sectional positions of the coupling jet. Therefore, the reliability of the equipment is improved, and the rejection of the processed workpiece due to the stability problem of the coupling jet is avoided. This is very important for long processing time and expensive processed parts, thereby reducing the loss in the processing process.

[0089] Although the above-described methods are illustrated and described as a series of acts, it will be understood and appreciated that the methods are not limited by the order of acts, as some acts can, in accordance with one or more embodiments, occur in different orders and / or concurrently with other acts from that set and / or described herein. As will be understood by one of ordinary skill in the art, acts can be added or removed from the methods, and some acts can be performed simultaneously.

[0090] Those skilled in the art will appreciate that information, signals, and data can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0091] Those skilled in the art will further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

[0092] In the above embodiments, the mass detection system of the coupled jet can control the mass detection device of the coupled jet through the controller. The controller can be implemented by a combination of software and hardware. However, it can be understood that the controller can also be implemented in software and hardware. For hardware implementation, the controller can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described above, or a combination of the above. For software implementation, the controller can be implemented by independent software modules such as procedures and functions, which perform one or more of the functions and operations described herein, running on a general-purpose chip.

[0093] The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein can be implemented or performed with a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0094] The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In the alternative, the processor and the storage medium can reside as discrete components in a user terminal.

[0095] In one or more exemplary embodiments, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray® disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0096] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quality detection device for coupled jets, characterized in that, include: A translucent workpiece simulation component is located at the cross-sectional position of the coupled jet; The first sensor, located below the translucent workpiece simulation component, is used to analyze the beam quality of the coupled jet; as well as The second sensor, located diagonally above the translucent workpiece simulator, is used to acquire image and / or video data of the coupled jet.

2. The quality detection device for coupled jets as described in claim 1, characterized in that, The translucent workpiece simulation includes flat, concave and / or convex types.

3. The quality detection device for coupled jets as described in claim 1, characterized in that, The first sensor and the second sensor maintain a relatively fixed pose relationship.

4. The quality detection device for coupled jets as described in claim 1, characterized in that, The translucent workpiece simulation component, the first sensor, and the second sensor maintain a relatively fixed positional relationship.

5. The quality detection device for coupled jets as described in claim 1, characterized in that, The first sensor includes a laser beam sensor.

6. The quality detection device for coupled jets as described in claim 5, characterized in that, The laser beam sensor includes a laser power meter and a beam quality analyzer.

7. The quality detection device for coupled jets as described in claim 5, characterized in that, The laser beam sensor includes a laser power meter, a microscope objective, and an industrial CCD camera.

8. A method for detecting the quality of a coupled jet, characterized in that, Including the following steps: Obtain metadata of the quality detection device for coupled jet as described in any one of claims 1 to 7, wherein the metadata includes the distance between the light-transmitting workpiece simulation component and the nozzle of the coupling cavity, and the relative pose information of the first sensor and the second sensor; The laser beam energy data is acquired through the first sensor, and the image and / or video data of the coupled jet is acquired through the second sensor. as well as The quality status of the coupled jet is determined based on the metadata, the laser beam energy data, and the image and / or video data of the coupled jet.

9. The method for quality detection of coupled jets as described in claim 8, characterized in that, It also includes the following steps: The distance between the translucent workpiece simulation component and the nozzle of the coupling cavity is adjusted, and the metadata, laser beam energy data, and image and / or video data of the coupled jet are acquired at different distances to comprehensively determine the quality status of the coupled jet.

10. The method for quality detection of coupled jets as described in claim 8 or 9, characterized in that, It also includes the following steps: The metadata, laser beam energy data, and image and / or video data of the coupled jet at different times are acquired to comprehensively determine the quality status of the coupled jet.

11. A quality detection system for coupled jets, characterized in that, include: Memory, on which computer instructions are stored; as well as A processor, connected to the memory, and configured to execute computer instructions stored in the memory to implement the quality detection method for the coupled jet as described in any one of claims 8 to 10.

12. A computer-readable storage medium storing computer instructions thereon, characterized in that, When the computer instructions are executed by the processor, the quality detection method for the coupled jet as described in any one of claims 8 to 10 is implemented.

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