Method, equipment and system for carrying out pressure resistance detection on workpiece coating

Abstract

The invention relates to the technical field of workpiece coating detection, in particular to a method, equipment and system for carrying out pressure resistance detection on a workpiece coating, and the method comprises the steps: executing a control operation on a fluid ejector, so that the fluid ejector continuously ejects a conductive fluid to a target workpiece, and forming a conductive electric film on the surface of the target workpiece; voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece; in the process of applying the voltage, withstand voltage detection is performed on the coating of the target workpiece to obtain the withstand voltage detection result of the target workpiece, so that the detection efficiency, accuracy and reliability of withstand voltage (such as withstand voltage of an insulating layer) of the coating of the workpiece are improved, and the withstand voltage detection is performed by spraying the conductive fluid on the surface of the workpiece to form a conductive film. The device is simple in structure, is suitable for workpieces with any flatness and flatness, improves the applicability of voltage-withstanding detection, generates conductive fluid through the fluid ejector, is stable in output, improves the consistency of voltage-withstanding detection, and reduces the risk that defective products flow out.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece coating detection, and particularly to a method, device and system for detecting the voltage withstand of a workpiece coating. Background Art

[0002] In a high-voltage electrical system box, for metal parts that are relatively close to electrical components, insulation protection is required. The conventional method is to spray an insulating layer on the metal surface. After the workpiece is sprayed, the thickness at each part needs to be within the tolerance range. When the thickness is lower than the lower limit, the insulation voltage withstand specification requirements may not be met. Therefore, after the workpiece is completed, it is necessary to perform insulation voltage withstand detection on the sprayed insulating layer to ensure that the overall workpiece meets the insulation voltage withstand standard.

[0003] Currently, the main method for detecting the insulation voltage withstand of the sprayed insulating layer is as follows: Clean the surface of the workpiece with a cleaner such as alcohol, and within the range of the insulating spray coating on the surface of the cleaned workpiece, cover it with conductive cotton. Then, cover and press down on the conductive cotton with a metal conductive block, and apply a certain pressure to deform the conductive cotton so that the conductive cotton contacts the surface of the workpiece to be measured. Apply a specified voltage between the metal conductive block and the conductive position of the workpiece, detect the leakage current during the pressure holding process (generally required to be ≤1 mA), and analyze the insulation voltage withstand of the workpiece based on the detection result of the leakage current. If the value of the leakage current does not exceed the specified value, the insulation performance of the workpiece meets the requirements. If it is observed that the coating at the failure position and the conductive foam are ablated, it means that the voltage breaks down the conductive cotton and the local insulation resistance of the workpiece fails.

[0004] However, it is found in practice that the above method has a low degree of automation, requires manual replacement of the conductive cotton and visual inspection of the detection results. While the detection efficiency is low, misdetection is likely to occur. Therefore, it is necessary to propose a new intelligent method for detecting the insulation voltage withstand of the workpiece coating to improve the detection efficiency and accuracy of the insulation voltage withstand of the workpiece coating. Summary of the Invention

[0005] The present invention provides a method, device and system for detecting the voltage withstand of a workpiece coating, which can improve the detection efficiency and accuracy of the insulation voltage withstand of the workpiece coating.

[0006] To solve the above technical problems, in the first aspect of the present invention, a method for detecting the voltage withstand of a workpiece coating is disclosed, and the method includes:

[0007] Perform a control operation on the fluid injector to make the fluid injector continuously spray a conductive fluid onto the target workpiece to form a conductive film on the surface of the target workpiece;

[0008] During the process of controlling the fluid ejector to eject the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, and the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece;

[0009] During the voltage application process, a voltage withstand test is performed on the coating of the target workpiece to obtain the voltage withstand test result of the target workpiece.

[0010] As an optional implementation manner, in the first aspect of the present invention, the method further includes:

[0011] Determine the movement path of the moving object, where the moving object includes the target workpiece and / or the fluid ejector;

[0012] Among them, the control operation is performed on the fluid ejector to enable the fluid ejector to continuously eject the conductive fluid toward the target workpiece to form a conductive film on the surface of the target workpiece, including:

[0013] According to the movement path of the moving object, a control operation is performed on the fluid ejector to enable the fluid ejector to continuously eject the conductive fluid toward the target workpiece to form a conductive film on the surface of the target workpiece.

[0014] As an optional implementation manner, in the first aspect of the present invention, the determination of the movement path of the moving object includes:

[0015] According to the attribute parameters of the target workpiece, determine the movement path matching the type of the target workpiece from multiple pre-stored movement paths as the movement path of the moving object; or,

[0016] Determine the single-time conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once, and the single-time conductive geometric parameters corresponding to the target workpiece include the single-time conductive film area and / or the single-time maximum conductive film diameter;

[0017] Collect the geometric parameters of the target workpiece and the conductive performance parameters of the conductive fluid ejected by the fluid ejector, and generate the movement path of the moving object according to the geometric parameters of the target workpiece, the single-time conductive geometric parameters corresponding to the target workpiece, and the conductive performance parameters of the conductive fluid ejected by the fluid ejector.

[0018] As an optional implementation manner, in the first aspect of the present invention, the fluid ejector includes a conductive fluid generator, or a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium;

[0019] When the fluid ejector is the conductive fluid generator, the conductive fluid generator is configured to generate the conductive fluid and eject the conductive fluid toward the target workpiece;

[0020] When the fluid ejector is the nozzle and the conductive fluid generator, the nozzle and the conductive fluid generator are directly connected, and the conductive fluid generator is configured to generate the conductive fluid, and the nozzle is configured to eject the conductive fluid toward the target workpiece;

[0021] When the fluid ejector is the nozzle, the conductive fluid generator and the transmission medium, the nozzle is connected to the conductive fluid generator through the transmission medium, and the conductive fluid generator is configured to generate the conductive fluid and transmit the conductive fluid to the nozzle through the transmission medium, and the nozzle is configured to eject the conductive fluid toward the target workpiece.

[0022] As an alternative embodiment, in the first aspect of the present invention, when the fluid ejector is the conductive fluid generator, the moving object specifically includes the target workpiece and / or the conductive fluid generator;

[0023] When the fluid ejector is the nozzle and the conductive fluid generator, or the nozzle, the conductive fluid generator and the transmission medium, the moving object specifically includes the target workpiece and / or the nozzle;

[0024] The type of the conductive fluid includes one of a conductive particle flow type, a conductive air flow type, and a conductive ion flow type.

[0025] As an alternative embodiment, in the first aspect of the present invention, when determining the single-shot conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once, it includes:

[0026] Obtain the vertical distance between the target workpiece and the nozzle of the fluid ejector and the attribute parameters of the fluid ejector;

[0027] According to the vertical distance corresponding to the target workpiece and the attribute parameters of the fluid ejector, determine the single-shot conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once.

[0028] As an alternative embodiment, in the first aspect of the present invention, when the fluid ejector is the conductive fluid generator, the attribute parameters of the fluid ejector include the nozzle diameter and / or the nozzle area of the conductive fluid generator;

[0029] When the fluid ejector is the nozzle head and the conductive fluid generator, or the nozzle head, the conductive fluid generator and the transmission medium, the attribute parameters of the fluid ejector include the nozzle parameters of the nozzle head and / or the parameters of the spray holes provided on the nozzle head. The nozzle parameters of the nozzle head include the nozzle diameter and / or the nozzle area of the nozzle head. The parameters of the spray holes provided on the nozzle head include the number of the spray holes provided on the nozzle head, the scattering area of the spray holes, the diameter of the spray holes, and the distribution density of all the spray holes.

[0030] As an optional implementation manner, in the first aspect of the present invention, the method further includes:

[0031] During the process of performing a pressure resistance test on the coating of the target workpiece, when the pressure resistance test result of the target workpiece is used to indicate that there are abnormal pressure resistance points in the coating of the target workpiece, obtain the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points;

[0032] Generate a pressure resistance abnormality prompt for the target workpiece according to the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points;

[0033] Wherein, the pressure resistance abnormality prompt of the target workpiece includes the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points.

[0034] The second aspect of the present invention discloses a device for performing a pressure resistance test on a workpiece coating. The device includes:

[0035] A control module, configured to perform a control operation on a fluid ejector so that the fluid ejector continuously ejects a conductive fluid toward a target workpiece to form a conductive film on the surface of the target workpiece;

[0036] An application module, configured to apply a voltage to the output end corresponding to the conductive fluid and the conductive position of the target workpiece during the process of controlling the fluid ejector to eject the conductive fluid, and the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece;

[0037] A detection module, configured to perform a pressure resistance test on the coating of the target workpiece during the process of applying the voltage to obtain a pressure resistance test result of the target workpiece.

[0038] As an optional implementation manner, in the second aspect of the present invention, the device further includes:

[0039] A determination module, configured to determine a movement path of a moving object, where the moving object includes the target workpiece and / or the fluid ejector;

[0040] Among them, the control module performs a control operation on the fluid injector so that the fluid injector continuously sprays the conductive fluid towards the target workpiece, and the specific manner of forming a conductive film on the surface of the target workpiece includes:

[0041] According to the movement path of the moving object, a control operation is performed on the fluid injector so that the fluid injector continuously sprays the conductive fluid towards the target workpiece, and a conductive film is formed on the surface of the target workpiece.

[0042] As an alternative implementation manner, in the second aspect of the present invention, the specific manner in which the determination module determines the movement path of the moving object includes:

[0043] According to the attribute parameters of the target workpiece, a movement path matching the type of the target workpiece is determined from a plurality of pre-stored movement paths as the movement path of the moving object; or,

[0044] Determine the single-conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector sprays the conductive fluid once. The single-conductive geometric parameters corresponding to the target workpiece include the single-conductive film area and / or the single maximum conductive film diameter;

[0045] Collect the geometric parameters of the target workpiece and the conductive performance parameters of the conductive fluid sprayed by the fluid injector, and generate the movement path of the moving object according to the geometric parameters of the target workpiece, the single-conductive geometric parameters corresponding to the target workpiece, and the conductive performance parameters of the conductive fluid sprayed by the fluid injector.

[0046] As an alternative implementation manner, in the second aspect of the present invention, the fluid injector includes a conductive fluid generator, or a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium;

[0047] When the fluid injector is the conductive fluid generator, the conductive fluid generator is used to generate the conductive fluid and spray the conductive fluid towards the target workpiece;

[0048] When the fluid injector is the nozzle and the conductive fluid generator, the nozzle and the conductive fluid generator are directly connected, and the conductive fluid generator is used to generate the conductive fluid, and the nozzle is used to spray the conductive fluid towards the target workpiece;

[0049] When the fluid ejector is the nozzle, the conductive fluid generator, and the transmission medium, the nozzle is connected to the conductive fluid generator through the transmission medium, and the conductive fluid generator is configured to generate the conductive fluid and transmit the conductive fluid to the nozzle through the transmission medium, and the nozzle is configured to eject the conductive fluid toward the target workpiece.

[0050] As an alternative embodiment, in the second aspect of the present invention, when the fluid ejector is the conductive fluid generator, the moving object specifically includes the target workpiece and / or the conductive fluid generator;

[0051] When the fluid ejector is the nozzle and the conductive fluid generator, or the nozzle, the conductive fluid generator, and the transmission medium, the moving object specifically includes the target workpiece and / or the nozzle;

[0052] The type of the conductive fluid includes one of a conductive particle flow type, a conductive air flow type, and a conductive ion flow type.

[0053] As an alternative embodiment, in the second aspect of the present invention, the specific manner in which the determining module determines the single-time conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once includes:

[0054] Obtain the vertical distance between the target workpiece and the nozzle of the fluid ejector and the attribute parameters of the fluid ejector;

[0055] Determine the single-time conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once according to the vertical distance corresponding to the target workpiece and the attribute parameters of the fluid ejector.

[0056] As an alternative embodiment, in the second aspect of the present invention, when the fluid ejector is the conductive fluid generator, the attribute parameters of the fluid ejector include the nozzle diameter and / or the nozzle area of the conductive fluid generator;

[0057] When the fluid ejector is the nozzle and the conductive fluid generator, or the nozzle, the conductive fluid generator, and the transmission medium, the attribute parameters of the fluid ejector include the nozzle parameters of the nozzle and / or the parameters of the spray holes provided on the nozzle. The nozzle parameters of the nozzle include the nozzle diameter and / or the nozzle area of the nozzle, and the parameters of the spray holes provided on the nozzle include the number of the spray holes provided on the nozzle, the scattering area of the spray holes, the diameter of the spray holes, and the distribution density of all the spray holes.

[0058] As an alternative implementation, in the second aspect of the present invention, the device further includes:

[0059] An acquisition module, configured to, during the process of the detection module performing a pressure resistance detection on the coating of the target workpiece, when the pressure resistance detection result of the target workpiece is used to indicate that there are abnormal pressure resistance points in the coating of the target workpiece, acquire the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points;

[0060] A generation module, configured to generate a pressure resistance abnormality prompt for the target workpiece according to the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points;

[0061] Wherein, the pressure resistance abnormality prompt for the target workpiece includes the positions of each of the abnormal pressure resistance points of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points.

[0062] The third aspect of the present invention discloses a pressure resistance detection device, and the pressure resistance detection device includes:

[0063] A memory storing executable program code;

[0064] A processor coupled to the memory;

[0065] The processor calls the executable program code stored in the memory and executes the method for performing a pressure resistance detection on a workpiece coating disclosed in the first aspect of the present invention.

[0066] The fourth aspect of the present invention discloses a computer-readable storage medium, and the computer-readable storage medium stores computer instructions, which are used to execute the method for performing a pressure resistance detection on a workpiece coating disclosed in the first aspect of the present invention when being called.

[0067] The fifth aspect of the present invention discloses a pressure resistance detection system, and the pressure resistance detection system includes a pressure resistance detection device and a fluid injector. Wherein, the pressure resistance detection device is communicatively connected to the fluid injector, and a non-contact target workpiece is placed below the nozzle of the fluid injector; wherein, the pressure resistance detection device is used to execute the method for performing a pressure resistance detection on a workpiece coating disclosed in the first aspect of the present invention.

[0068] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0069] In an embodiment of the present invention, a control operation is performed on a fluid injector so that the fluid injector continuously sprays a conductive fluid onto a target workpiece to form a conductive film on the surface of the target workpiece; during the process of controlling the fluid injector to spray the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, wherein the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece; during the process of applying the voltage, a withstand voltage test is performed on the coating of the target workpiece to obtain the withstand voltage test result of the target workpiece, which improves the detection efficiency, accuracy and reliability of the withstand voltage of the workpiece coating (such as the withstand voltage of the insulating layer), and the method of performing the withstand voltage test by spraying the conductive fluid onto the surface of the workpiece to form a conductive film is applicable to workpieces with any flatness and smoothness, which improves the applicability of the withstand voltage test, and the conductive fluid is generated by the fluid injector with stable output, which improves the consistency of the withstand voltage test, thereby reducing the risk of defective products flowing out; and there is no need to use conductive cotton, while reducing the loss, thereby reducing the cost of the withstand voltage test; and the conductive fluid naturally dissipates after contacting the workpiece, does not damage the workpiece, does not generate foreign matter to contaminate the workpiece, and improves the possibility of obtaining a workpiece that is intact and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0071] Figure 1 is a schematic flowchart of a method for performing a withstand voltage test on a workpiece coating disclosed in an embodiment of the present invention;

[0072] Figure 2 is a schematic structural diagram of a device for performing a withstand voltage test on a workpiece coating disclosed in an embodiment of the present invention;

[0073] Figure 3 is a schematic structural diagram of another device for performing a withstand voltage test on a workpiece coating disclosed in an embodiment of the present invention;

[0074] Figure 4 is a schematic structural diagram of a withstand voltage test device disclosed in an embodiment of the present invention;

[0075] Figure 5 is a schematic structural diagram of a withstand voltage test system disclosed in an embodiment of the present invention;

[0076] Figure 6 is a schematic structural diagram of a system for performing a withstand voltage test on a workpiece coating disclosed in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0077] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0078] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or terminal comprising a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or terminals.

[0079] Referring to "embodiments" herein means that a specific feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0080] The present invention discloses a method, device, and system for performing a withstand voltage test on a workpiece coating. By performing a control operation on a fluid ejector, the fluid ejector is made to continuously eject a conductive fluid towards a target workpiece to form a conductive film on the surface of the target workpiece; during the process of controlling the fluid ejector to eject the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, where the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece; during the process of applying the voltage, a withstand voltage test is performed on the coating of the target workpiece to obtain a withstand voltage test result of the target workpiece, improving the detection efficiency, accuracy, and reliability of the withstand voltage of the workpiece coating (such as the withstand voltage of an insulating layer), and the method of performing a withstand voltage test by ejecting a conductive fluid onto the surface of the workpiece to form a conductive film is applicable to workpieces with any flatness and smoothness, improving the applicability of the withstand voltage test, and the conductive fluid is generated by the fluid ejector, with stable output, improving the consistency of the withstand voltage test, thereby reducing the risk of defective products flowing out; and there is no need to use conductive cotton, while reducing losses, thereby reducing the cost of the withstand voltage test; and the conductive fluid dissipates naturally after contacting the workpiece, will not damage the workpiece, and will not cause foreign matter pollution to the workpiece, increasing the possibility of obtaining a workpiece that is intact and clean. The following will be described in detail respectively.

[0081] Example 1

[0082] Please refer to Figure 1 , Figure 1 which is a schematic flowchart of a method for performing a pressure resistance test on a workpiece coating disclosed in an embodiment of the present invention. Among them, Figure 1 the described method can be applied to any pressure resistance testing device or pressure resistance testing system that needs to perform a pressure resistance test on a workpiece. Among them, the coating can be a conductive layer or an insulating layer, and the embodiments of the present invention do not make any limitations. Optionally, the pressure resistance testing device or pressure resistance testing system can be linked with an automated production line body through a data interface to efficiently achieve automated production and workpiece inspection. As Figure 1 shown, the method may include the following operations:

[0083] 101. Perform a control operation on the fluid injector so that the fluid injector continuously sprays a conductive fluid onto the target workpiece to form a conductive film on the surface of the target workpiece.

[0084] In an embodiment of the present invention, optionally, the target workpiece is any workpiece to be subjected to a pressure resistance test.

[0085] In an embodiment of the present invention, optionally, the fluid injector includes a conductive fluid generator (also referred to as a conductive fluid generator), or a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium; among them, optionally, when the fluid injector is a conductive fluid generator, the conductive fluid generator is used to generate a conductive fluid and spray the conductive fluid onto the target workpiece; when the fluid injector is a nozzle and a conductive fluid generator, the nozzle and the conductive fluid generator are directly connected, and the conductive fluid generator is used to generate a conductive fluid, and the nozzle is used to spray the conductive fluid onto the target workpiece; Figure 6 which is a schematic structural diagram of a system for performing a pressure resistance test on a workpiece coating disclosed in an embodiment of the present invention, as Figure 6As shown, when the fluid ejector is a nozzle, a conductive fluid generator, and a transmission medium, the (diffuse) nozzle is connected to the conductive fluid generator (particle generator) through the transmission medium, and the conductive fluid generator is used to generate a conductive fluid and transmit the conductive fluid to the nozzle through the transmission medium. The nozzle is used to eject the conductive fluid (conductive particle flow) toward the target workpiece (workpiece to be tested), where the target workpiece is placed on the test workbench. In this way, the conductive fluid is ejected through the nozzle to make the conductive fluid evenly dispersed, improving the uniform ejection of the conductive fluid and having good conductive performance within the diffuse range. Optionally, the transmission medium can be one of the cables capable of realizing communication, such as twisted pair, coaxial cable, and optical fiber. Optionally, the type of the conductive fluid includes any one of the fluids with conductive properties, such as conductive particle flow type, conductive air flow type, and conductive ion flow type. The conductive fluid is a soft conductor and can achieve continuous conduction within a certain height range, improving the applicability of the withstand voltage detection device or system.

[0086] 102. During the process of controlling the fluid ejector to eject the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, where the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece.

[0087] In the embodiment of the present invention, optionally, the position of the output end corresponding to the conductive fluid can be determined according to the specific components included in the fluid ejector. Specifically, when the fluid ejector is a conductive fluid generator, or when the fluid ejector is a nozzle and a conductive fluid generator, the output end corresponding to the conductive fluid is the position of the nozzle where the conductive fluid is ejected by the conductive fluid generator; when the fluid ejector is a nozzle, a conductive fluid generator, and a transmission medium, the output end corresponding to the conductive fluid is one of the positions on the end of the transmission medium close to the conductive fluid generator, and the conductive position of the target workpiece can be any position where the target workpiece can conduct electricity, such as the end position of the target workpiece, such as Figure 6 As shown, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, and an ammeter is connected in series to detect the current (leakage current) from the output end corresponding to the conductive fluid to the target workpiece, and the detected current is compared with a preset current to obtain a current comparison result as the withstand voltage detection result of the target workpiece; or, a voltmeter is connected in parallel to detect the voltage from the output end corresponding to the conductive fluid to both ends of the target workpiece, and the detected voltage is compared with a preset voltage to obtain a voltage comparison result as the withstand voltage detection result of the target workpiece.

[0088] In the embodiment of the present invention, optionally, the magnitude of the applied voltage is determined by a preset withstand voltage standard. For example, the applied voltage is U, and the required withstand voltage is (1000 + 2U) * 1.414. Among them, the target workpiece itself is manufactured to meet this withstand voltage standard.

[0089] In the embodiment of the present invention, the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece. Specifically, it can be understood that the conductive position of the target workpiece changes with the position of the conductive film formed by the conductive fluid on the surface of the target workpiece.

[0090] 103. During the application of voltage, perform a withstand voltage test on the coating of the target workpiece to obtain the withstand voltage test result of the target workpiece.

[0091] In the embodiment of the present invention, optionally, spraying the conductive fluid towards the target workpiece and performing the withstand voltage test can occur simultaneously, or the withstand voltage test can be performed after spraying the conductive fluid.

[0092] It can be seen that by implementing the present invention, by performing a control operation on the fluid injector, the fluid injector is made to continuously spray the conductive fluid towards the target workpiece to form a conductive film on the surface of the target workpiece; during the process of controlling the fluid injector to spray the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece; during the application of voltage, a withstand voltage test is performed on the coating of the target workpiece to obtain the withstand voltage test result of the target workpiece, improving the detection efficiency, accuracy, and reliability of the withstand voltage of the workpiece coating (such as the withstand voltage of the insulating layer), and the method of performing the withstand voltage test by spraying the conductive fluid on the surface of the workpiece to form a conductive film is applicable to workpieces with any flatness and smoothness, improving the applicability of the withstand voltage test, and by generating the conductive fluid through the fluid injector, the output is stable, improving the consistency of the withstand voltage test, thereby reducing the risk of defective products flowing out; and there is no need to use conductive cotton, while reducing the loss, thereby reducing the cost of the withstand voltage test; and the conductive fluid dissipates naturally after contacting the workpiece, will not damage the workpiece, and will not generate foreign matter to contaminate the workpiece, increasing the possibility of obtaining a workpiece that is intact and clean.

[0093] In an optional embodiment, the method may further include the following steps:

[0094] Determine the movement path of the moving object, where the moving object includes the target workpiece and / or the fluid injector;

[0095] Among them, performing a control operation on the fluid injector to make the fluid injector continuously spray the conductive fluid towards the target workpiece to form a conductive film on the surface of the target workpiece includes:

[0096] According to the movement path of the moving object, perform a control operation on the fluid injector to make the fluid injector continuously spray the conductive fluid towards the target workpiece to form a conductive film on the surface of the target workpiece.

[0097] In this optional embodiment, optionally, when the fluid ejector is a conductive fluid generator, the moving object specifically includes the target workpiece and / or the conductive fluid generator; when the fluid ejector is a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium, the moving object specifically includes the target workpiece and / or the nozzle. Optionally, the cantilever can be controlled to drive the moving object to move along the corresponding moving path. Further optionally, when the moving object includes the target workpiece and the fluid ejector, the moving directions of the two can be the same or opposite.

[0098] It can be seen that in this optional embodiment, while controlling the movement of the moving object based on the determined moving path, the fluid ejector is controlled to eject the conductive fluid towards the workpiece, improving the spraying accuracy, uniformity, and efficiency of the conductive fluid, which is beneficial to further improving the accuracy, efficiency, and reliability of the pressure resistance detection of the workpiece coating.

[0099] In this optional embodiment, optionally, determining the moving path of the moving object includes:

[0100] According to the attribute parameters of the target workpiece, determine, from multiple pre-stored moving paths, the moving path that matches the type of the target workpiece as the moving path of the moving object; or,

[0101] Determine the single-time conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once. The single-time conductive geometric parameters corresponding to the target workpiece include the single-time conductive film area and / or the single-time maximum conductive film diameter;

[0102] Collect the geometric parameters of the target workpiece and the conductive performance parameters of the conductive fluid ejected by the fluid ejector, and generate the moving path of the moving object based on the geometric parameters of the target workpiece, the single-time conductive geometric parameters corresponding to the target workpiece, and the conductive performance parameters of the conductive fluid ejected by the fluid ejector.

[0103] In this optional embodiment, optionally, the attribute parameters of the target workpiece may include the following geometric parameters and / or types. In this optional embodiment, optionally, the geometric parameters of the target workpiece include one or more of the length of the target workpiece, the width of the target workpiece, the area of the target workpiece, and the shape of the target workpiece. The more content included in such attribute parameters or the more content included in the geometric parameters, the more beneficial it is to improve the determination efficiency and accuracy of the moving path.

[0104] In this optional embodiment, optionally, the conductivity parameter is determined by the density of the conductive fluid, and the density of the conductive fluid is determined by one of the factors of the power of the conductive fluid generator, the emission frequency, and the diameter of the transmission medium. Among them, the greater the power and / or the greater the emission frequency and / or the smaller the diameter, the greater the density, and the better the conductivity parameter represents the conductivity.

[0105] It should be noted that after obtaining the movement path, the movement of the moving object (such as the nozzle) can be set through the software interface, so that after the moving object moves, the path it passes through can completely cover the surface to be measured of the target workpiece, so as to meet the comprehensiveness of the withstand voltage detection and obtain a target workpiece that meets the requirements.

[0106] It can be seen that this optional embodiment enriches the determination method of the movement path by selecting a matching movement path from the pre-stored movement paths or generating a corresponding movement path based on the geometric parameters of the workpiece and the single-conductivity geometric parameters at present, improves the determination efficiency and accuracy of the movement path, thereby further improving the spraying efficiency, accuracy and comprehensiveness of the conductive fluid, and further facilitating the improvement of the withstand voltage detection efficiency, accuracy and comprehensiveness of the workpiece coating.

[0107] In this optional embodiment, further optionally, when determining the single-conductivity geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector injects the conductive fluid once, it includes:

[0108] Obtain the vertical distance between the target workpiece and the nozzle of the fluid injector and the attribute parameters of the fluid injector;

[0109] According to the vertical distance corresponding to the target workpiece and the attribute parameters of the fluid injector, determine the single-conductivity geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector injects the conductive fluid once.

[0110] In this optional embodiment, optionally, when the fluid injector is a conductive fluid generator, the attribute parameters of the fluid injector include the nozzle diameter and / or the nozzle area of the conductive fluid generator; when the fluid injector is a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator and a transmission medium, the attribute parameters of the fluid injector include the nozzle parameters of the nozzle and / or the parameters of the spray holes provided on the nozzle. The nozzle parameters of the nozzle include the nozzle diameter and / or the nozzle area of the nozzle, and the parameters of the spray holes provided on the nozzle include the number of spray holes provided on the nozzle, the scattering area of the spray holes, the diameter of the spray holes, and the distribution density of all spray holes.

[0111] In this optional embodiment, optionally, a distance sensor is provided on the fluid injector to measure the vertical distance from the nozzle to the diameter of the target workpiece. Or, it is measured by other sensors.

[0112] In this optional embodiment, the longer the vertical distance, and / or the shorter the nozzle diameter, and / or the smaller the nozzle area, and / or the smaller the scattering area of the nozzle holes, and / or the smaller the diameter of the nozzle holes, the smaller the single-time conductive film area and the single-time maximum conductive film diameter. Optionally, the more the number of nozzle holes and / or the more uniform the distribution density of all the nozzle holes, the more uniform the single-time conductive film area.

[0113] It can be seen that in this optional embodiment, the single-time conductive geometric parameters are jointly determined by the vertical distance between the workpiece and the nozzle of the fluid injector and the attribute parameters of the fluid injector, improving the determination accuracy of the single-time conductive geometric parameters. Thereby, the generation accuracy and reliability of the movement path are further improved, and further, the spraying uniformity, comprehensiveness, efficiency, and accuracy of the conductive fluid of the workpiece are improved, which is beneficial to further improving the accuracy, reliability, and efficiency of the pressure resistance detection of the workpiece coating.

[0114] In another optional embodiment, the method may further include the following steps:

[0115] During the process of performing pressure resistance detection on the coating of the target workpiece, monitor the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle to obtain a fluid uniformity monitoring result;

[0116] Judge whether the fluid uniformity monitoring result is used to indicate that the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle is less than or equal to a preset fluid uniformity;

[0117] When the judgment result is yes, calculate the fluid uniformity difference between the analyzed fluid uniformity and the preset fluid uniformity;

[0118] Generate fluid control parameters for the fluid injector according to the fluid uniformity difference and the attribute parameters of the fluid injector, and control the fluid injector according to the generated fluid control parameters so that the fluid injector ejects a conductive fluid with a fluid uniformity greater than or equal to the preset fluid uniformity.

[0119] In this optional embodiment, optionally, when the judgment result is no, re-execute the above operation of monitoring the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle during the process of performing pressure resistance detection on the coating of the target workpiece to obtain a fluid uniformity monitoring result until the pressure resistance detection of the coating of the target workpiece is completed.

[0120] In this alternative embodiment, optionally, when the fluid ejector is a conductive fluid generator, the fluid control parameters of the fluid ejector include the power of the conductive fluid generator and / or the emission frequency control parameter; when the fluid ejector is a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium, the fluid control parameters of the fluid ejector include the power of the conductive fluid generator and / or the emission frequency control parameter and / or the diameter control parameter of the transmission medium and / or the nozzle diameter control parameter of the nozzle and / or the scattering area control parameter of the spray holes on the nozzle and / or the diameter control parameter of the spray holes and / or the distribution density control parameter of all the spray holes.

[0121] In this alternative embodiment, optionally, the fluid uniformity can be obtained by analyzing the image of the airflow generated by ejecting the conductive fluid from the conductive object generator or the nozzle.

[0122] It can be seen that in the process of the pressure resistance detection of this alternative embodiment, if it is monitored that the uniformity of the ejected fluid does not meet the requirements, corresponding fluid control parameters are generated according to the difference between the uniformity of the ejected fluid and the required fluid uniformity and the attribute parameters of the current fluid ejector, improving the accuracy and reliability of the generation of the fluid control parameters. Thus, it is beneficial to improve the uniformity of the conductive fluid ejected by the fluid ejector, and further improve the conductive performance of the conductive fluid, which is beneficial to improving the accuracy and reliability of the pressure resistance detection of the coating of the workpiece.

[0123] In yet another alternative embodiment, the method may further include the following steps:

[0124] In the process of performing the pressure resistance detection on the coating of the target workpiece, when the pressure resistance detection result of the target workpiece indicates that there are abnormal pressure resistance points in the coating of the target workpiece, obtain the positions of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all abnormal pressure resistance points;

[0125] Generate a pressure resistance abnormality prompt for the target workpiece according to the positions of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all abnormal pressure resistance points;

[0126] Among them, the pressure resistance abnormality prompt of the target workpiece includes the positions of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all abnormal pressure resistance points.

[0127] In this alternative embodiment, optionally, for any pressure resistance point, when the detected current is not within the preset current range, or when the detected voltage is not within the preset voltage range, it indicates that this pressure resistance point is an abnormal pressure resistance point.

[0128] In this alternative embodiment, optionally, after the pressure resistance detection of the coating of the target workpiece is completed, a prompt is also output to prompt relevant personnel to know that the workpiece has completed the pressure resistance detection.

[0129] It can be seen that in the withstand voltage detection process of this optional embodiment, the number and position of abnormal withstand voltage points are automatically analyzed, and corresponding withstand voltage abnormality prompts are generated, improving the ability of relevant personnel to quickly and accurately know the abnormal conditions of the workpiece coating withstand voltage detection and the abnormal withstand voltage performance of the workpiece, so as to quickly and accurately process the workpieces with abnormal performance.

[0130] Embodiment 2

[0131] Please refer to Figure 2 , Figure 2 which is a schematic structural diagram of a device for detecting the withstand voltage of a workpiece coating disclosed in an embodiment of the present invention. Among them, Figure 2 the described device can be applied to any withstand voltage detection equipment or withstand voltage detection system that needs to detect the withstand voltage of a workpiece coating. Among them, the coating can be a conductive layer or an insulating layer, which is not limited in the embodiments of the present invention. Optionally, the withstand voltage detection equipment or withstand voltage detection system can be linked with an automated production line body through a data interface to efficiently realize automated production and workpiece inspection. As Figure 2 shown, the device may include:

[0132] A control module 201, configured to perform a control operation on the fluid injector so that the fluid injector continuously sprays a conductive fluid onto the target workpiece to form a conductive film on the surface of the target workpiece;

[0133] In the embodiments of the present invention, optionally, the target workpiece is any workpiece to be subjected to withstand voltage detection.

[0134] In an embodiment of the present invention, optionally, the fluid ejector includes a conductive fluid generator (also referred to as a conductive fluid generator), or a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium; wherein, optionally, when the fluid ejector is a conductive fluid generator, the conductive fluid generator is configured to generate a conductive fluid and eject the conductive fluid toward a target workpiece; when the fluid ejector is a nozzle and a conductive fluid generator, the nozzle and the conductive fluid generator are directly connected, and the conductive fluid generator is configured to generate a conductive fluid, and the nozzle is configured to eject the conductive fluid toward the target workpiece; when the fluid ejector is a nozzle, a conductive fluid generator, and a transmission medium, the nozzle is connected to the conductive fluid generator through the transmission medium, and the conductive fluid generator is configured to generate a conductive fluid and transmit the conductive fluid to the nozzle through the transmission medium, and the nozzle is configured to eject the conductive fluid toward the target workpiece. In this way, the conductive fluid is ejected through the nozzle, so that the conductive fluid is evenly dispersed, improving the uniform ejection of the conductive fluid, and having good electrical conductivity within the dispersion range. Optionally, the transmission medium may be one of the cables capable of realizing communication, such as a twisted pair, a coaxial cable, and an optical fiber. Optionally, the type of the conductive fluid includes any one of the fluids having conductive properties, such as a conductive particle flow type, a conductive air flow type, and a conductive ion flow type. The conductive fluid is a soft conductor and can achieve continuous conduction within a certain height range, improving the applicability of the voltage withstand detection device or system.

[0135] The application module 202 is configured to apply a voltage to the output end corresponding to the conductive fluid and the conductive position of the target workpiece during the process of controlling the fluid ejector to eject the conductive fluid, wherein the conductive position of the target workpiece is determined by the conductive film corresponding to the target workpiece;

[0136] In an embodiment of the present invention, optionally, the position of the output end corresponding to the conductive fluid can be determined according to the specific components included in the fluid ejector. Specifically, when the fluid ejector is a conductive fluid generator, or when the fluid ejector is a nozzle and a conductive fluid generator, the output end corresponding to the conductive fluid is the position where the nozzle for ejecting the conductive fluid of the conductive fluid generator is located; when the fluid ejector is a nozzle, a conductive fluid generator, and a transmission medium, the output end corresponding to the conductive fluid is one of the positions on the end of the transmission medium close to the conductive fluid generator, and the conductive position of the target workpiece can be any position capable of conducting electricity on the target workpiece, such as the end position of the target workpiece, such as Figure 2As shown, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece, and an ammeter is connected in series to detect the current from the output end corresponding to the conductive fluid to the target workpiece. The detected current is compared with a preset current to obtain a current comparison result, which is used as the withstand voltage detection result of the target workpiece. Alternatively, a voltmeter is connected in parallel to detect the voltage from the output end corresponding to the conductive fluid to both ends of the target workpiece. The detected voltage is compared with a preset voltage to obtain a voltage comparison result, which is used as the withstand voltage detection result of the target workpiece.

[0137] In an embodiment of the present invention, optionally, the magnitude of the applied voltage is determined by a preset withstand voltage standard. For example, if the applied voltage is U and the required withstand voltage is (1000 + 2U) * 1.414. Among them, the target workpiece itself is manufactured to meet this withstand voltage standard.

[0138] The detection module 203 is used to perform a withstand voltage test on the coating of the target workpiece during the application of voltage to obtain the withstand voltage detection result of the target workpiece.

[0139] In an embodiment of the present invention, optionally, spraying the conductive fluid towards the target workpiece and performing the withstand voltage test can occur simultaneously, or the withstand voltage test can be performed after spraying the conductive fluid.

[0140] It can be seen that implementing Figure 2 The described device controls the fluid injector to continuously spray the conductive fluid towards the target workpiece to form a conductive film on the surface of the target workpiece; during the process of controlling the fluid injector to spray the conductive fluid, a voltage is applied to the output end corresponding to the conductive fluid and the conductive position of the target workpiece; during the application of voltage, a withstand voltage test is performed on the coating of the target workpiece to obtain the withstand voltage detection result of the target workpiece, which improves the detection efficiency, accuracy, and reliability of the withstand voltage of the workpiece coating (such as the withstand voltage of the insulating layer), and the method of performing the withstand voltage test by spraying the conductive fluid on the surface of the workpiece to form a conductive film is applicable to workpieces with any flatness and smoothness, improving the applicability of the withstand voltage test, and the conductive fluid is generated by the fluid injector with stable output, improving the consistency of the withstand voltage test, thereby reducing the risk of defective products flowing out; and there is no need to use conductive cotton, reducing the loss at the same time, thereby reducing the cost of the withstand voltage test; and the conductive fluid dissipates naturally after contacting the workpiece, will not damage the workpiece, and will not generate foreign matter to contaminate the workpiece, increasing the possibility of obtaining a workpiece that is intact and clean.

[0141] In an alternative embodiment, Figure 3 is a schematic structural diagram of another device for performing a withstand voltage test on a workpiece coating disclosed in an embodiment of the present invention. As Figure 3 shown, the device may further include:

[0142] A determination module 204, configured to determine a movement path of a moving object, where the moving object includes a target workpiece and / or a fluid injector;

[0143] Among them, the control module 201 performs a control operation on the fluid injector so that the fluid injector continuously sprays a conductive fluid toward the target workpiece, and the specific manner of forming a conductive film on the surface of the target workpiece includes:

[0144] Performing a control operation on the fluid injector according to the movement path of the moving object, so that the fluid injector continuously sprays a conductive fluid toward the target workpiece, and a conductive film is formed on the surface of the target workpiece.

[0145] In this optional embodiment, optionally, when the fluid injector is a conductive fluid generator, the moving object specifically includes a target workpiece and / or a conductive fluid generator; when the fluid injector is a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator, and a transmission medium, the moving object specifically includes a target workpiece and / or a nozzle. Optionally, the control cantilever can be controlled to drive the moving object to move along the corresponding movement path. Further optionally, when the moving object includes a target workpiece and a fluid injector, the moving directions of the two can be the same or opposite.

[0146] It can be seen that in this optional embodiment, while controlling the movement of the moving object based on the determined movement path, the fluid injector is controlled to spray the conductive fluid toward the workpiece, improving the spraying accuracy, uniformity, and efficiency of the conductive fluid, thereby facilitating further improvement of the accuracy, efficiency, and reliability of the pressure resistance detection of the workpiece coating.

[0147] In this optional embodiment, optionally, the specific manner for the determination module 204 to determine the movement path of the moving object includes:

[0148] According to the attribute parameters of the target workpiece, determining, from a plurality of pre-stored movement paths, a movement path that matches the type of the target workpiece as the movement path of the moving object; or,

[0149] Determining the single-time conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector sprays the conductive fluid once, and the single-time conductive geometric parameters corresponding to the target workpiece include the single-time conductive film area and / or the single-time maximum conductive film diameter;

[0150] Collecting the geometric parameters of the target workpiece and the conductive performance parameters of the conductive fluid sprayed by the fluid injector, and generating the movement path of the moving object according to the geometric parameters of the target workpiece, the single-time conductive geometric parameters corresponding to the target workpiece, and the conductive performance parameters of the conductive fluid sprayed by the fluid injector.

[0151] In this alternative embodiment, optionally, the attribute parameters of the target workpiece may include the following geometric parameters and / or types. In this alternative embodiment, optionally, the geometric parameters of the target workpiece include one or more of the length of the target workpiece, the width of the target workpiece, the area of the target workpiece, and the shape of the target workpiece. The more content included in the attribute parameters or the more content included in the geometric parameters, the more conducive it is to improving the determination efficiency and accuracy of the movement path.

[0152] In this alternative embodiment, optionally, the conductivity parameter is determined by the density of the conductive fluid, and the density of the conductive fluid is determined by one of the factors of the power of the conductive fluid generator, the emission frequency, and the diameter of the transmission medium. Among them, the greater the power and / or the greater the emission frequency and / or the smaller the diameter, the greater the density, and the better the conductivity parameter represents the conductivity.

[0153] It should be noted that after obtaining the movement path, the movement of the moving object (such as the nozzle) can be set through the software interface, so that after the moving object moves, the path it passes through can completely cover the surface to be measured of the target workpiece to meet the comprehensiveness of the pressure resistance detection and obtain a target workpiece that meets the requirements.

[0154] It can be seen that this alternative embodiment enriches the determination method of the movement path by selecting a matching movement path from the pre-stored movement paths or generating a corresponding movement path based on the geometric parameters of the workpiece and the single-conductive geometric parameters at present, improves the determination efficiency and accuracy of the movement path, thereby further improving the spraying efficiency, accuracy and comprehensiveness of the conductive fluid, and further facilitating the improvement of the pressure resistance detection efficiency, accuracy and comprehensiveness of the workpiece coating.

[0155] In this alternative embodiment, optionally, the specific method for the determination module 204 to determine the single-conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector injects the conductive fluid once includes:

[0156] Obtain the vertical distance between the target workpiece and the nozzle of the fluid injector and the attribute parameters of the fluid injector;

[0157] According to the vertical distance corresponding to the target workpiece and the attribute parameters of the fluid injector, determine the single-conductive geometric parameters formed by the conductive fluid on the target workpiece when the fluid injector injects the conductive fluid once.

[0158] In this alternative embodiment, optionally, when the fluid ejector is an electrically conductive fluid generator, the attribute parameters of the fluid ejector include the nozzle diameter and / or the nozzle area of the electrically conductive fluid generator; when the fluid ejector is a nozzle and an electrically conductive fluid generator, or a nozzle, an electrically conductive fluid generator and a transmission medium, the attribute parameters of the fluid ejector include the nozzle parameters of the nozzle and / or the parameters of the nozzles provided on the nozzle. The nozzle parameters of the nozzle include the nozzle diameter and / or the nozzle area of the nozzle, and the parameters of the nozzles provided on the nozzle include the number of nozzles provided on the nozzle, the scattering area of the nozzles, the diameter of the nozzles, and the distribution density of all the nozzles.

[0159] In this alternative embodiment, optionally, a distance sensor is provided on the fluid ejector to measure the vertical distance from the nozzle to the diameter of the target workpiece. Alternatively, it is measured by other sensors.

[0160] In this alternative embodiment, the longer the vertical distance, and / or the shorter the nozzle diameter, and / or the smaller the nozzle area, and / or the smaller the scattering area of the nozzles, and / or the smaller the diameter of the nozzles, the smaller the single-time electrically conductive film area and the single-time maximum electrically conductive film diameter. Optionally, the more the number of nozzles and / or the more uniform the distribution density of all the nozzles, the more uniform the single-time electrically conductive film area.

[0161] It can be seen that in this alternative embodiment, the single-time conductive geometric parameters are jointly determined by the vertical distance between the workpiece and the nozzle of the fluid ejector and the attribute parameters of the fluid ejector, improving the determination accuracy of the single-time conductive geometric parameters, thereby further improving the generation accuracy and reliability of the movement path, and further improving the spraying uniformity, comprehensiveness, efficiency and accuracy of the electrically conductive fluid of the workpiece, which is beneficial to further improving the accuracy, reliability and efficiency of the voltage withstand detection of the workpiece coating.

[0162] In another alternative embodiment, as Figure 3 shown, the device may further include:

[0163] An acquisition module 205, configured to, during the process of the detection module 203 performing a voltage withstand test on the coating of the target workpiece, when the voltage withstand test result of the target workpiece is used to indicate that there are abnormal voltage withstand points in the coating of the target workpiece, acquire the positions of each abnormal voltage withstand point of the target workpiece in the coating of the target workpiece and the number of all abnormal voltage withstand points;

[0164] A generation module 206, configured to generate a voltage withstand abnormality prompt for the target workpiece according to the positions of each abnormal voltage withstand point of the target workpiece in the coating of the target workpiece and the number of all abnormal voltage withstand points;

[0165] Wherein, the voltage withstand abnormality prompt of the target workpiece includes the positions of each abnormal voltage withstand point of the target workpiece in the coating of the target workpiece and the number of all abnormal voltage withstand points.

[0166] In this alternative embodiment, optionally, for any withstand voltage point, when the detected current is not within the preset current range, or when the detected voltage is not within the preset voltage range, it indicates that this withstand voltage point is an abnormal withstand voltage point.

[0167] In this alternative embodiment, optionally, after the withstand voltage detection of the coating of the target workpiece is completed, a prompt is also output to notify the relevant personnel that the workpiece has completed the withstand voltage detection.

[0168] It can be seen that in the process of withstand voltage detection in this alternative embodiment, the number and position of abnormal withstand voltage points are automatically analyzed, and corresponding withstand voltage abnormality prompts are generated, improving the relevant personnel's ability to quickly and accurately know the abnormal conditions of the withstand voltage detection of the workpiece coating and the abnormal withstand voltage performance of the workpiece, so as to quickly and accurately process the workpieces with abnormal performance accordingly.

[0169] In yet another alternative embodiment, the device is further configured to monitor the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle during the process of performing withstand voltage detection on the coating of the target workpiece, and obtain a fluid uniformity monitoring result; determine whether the fluid uniformity monitoring result indicates that the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle is less than or equal to a preset fluid uniformity; when the determination result is yes, calculate the fluid uniformity difference between the analyzed fluid uniformity and the preset fluid uniformity; generate a fluid control parameter for the fluid ejector according to the fluid uniformity difference and the attribute parameters of the fluid ejector, and control the fluid ejector according to the generated fluid control parameter so that the fluid ejector ejects a conductive fluid with a fluid uniformity greater than or equal to the preset fluid uniformity.

[0170] In this alternative embodiment, optionally, when the determination result is no, the above operation of monitoring the fluid uniformity of the conductive fluid ejected from the conductive fluid generator or the nozzle during the process of performing withstand voltage detection on the coating of the target workpiece to obtain a fluid uniformity monitoring result is re-executed until the target workpiece completes the coating withstand voltage detection.

[0171] In this alternative embodiment, optionally, when the fluid ejector is a conductive fluid generator, the fluid control parameter of the fluid ejector includes the power of the conductive fluid generator and / or the emission frequency control parameter; when the fluid ejector is a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator and a transmission medium, the fluid control parameter of the fluid ejector includes the power of the conductive fluid generator and / or the emission frequency control parameter and / or the diameter control parameter of the transmission medium and / or the nozzle diameter control parameter of the nozzle and / or the scattering area control parameter of the spray holes on the nozzle and / or the diameter control parameter of the spray holes and / or the distribution density control parameter of all spray holes.

[0172] In this alternative embodiment, optionally, the fluid uniformity can be obtained by analyzing an image of the airflow in which the conductive fluid is collected and ejected from the conductive object generator or the nozzle.

[0173] It can be seen that in the pressure resistance detection process of this alternative embodiment, if it is monitored that the uniformity of the ejected fluid does not meet the requirements, corresponding fluid control parameters are generated according to the difference between the uniformity of the ejected fluid and the required fluid uniformity and the attribute parameters of the current fluid ejector, improving the accuracy and reliability of the generation of the fluid control parameters. Thereby, it is beneficial to improve the uniformity of the conductive fluid ejected by the fluid ejector, and further improve the conductive performance of the conductive fluid, which is beneficial to improving the accuracy and reliability of the pressure resistance detection of the workpiece coating.

[0174] Embodiment III

[0175] Please refer to Figure 4 , Figure 4 , which is a schematic structural diagram of a pressure resistance detection device disclosed in an embodiment of the present invention. Among them, the pressure resistance detection device can be applied to any scenario where the pressure resistance of the workpiece coating needs to be detected. Among them, the coating can be a conductive layer or an insulating layer, which is not limited in the embodiments of the present invention. Optionally, the pressure resistance detection device can be linked with the automated production line body through a data interface to efficiently realize automated production and workpiece inspection. As Figure 4 shown, the pressure resistance detection device may include:

[0176] A memory 301 storing executable program code;

[0177] A processor 302 coupled to the memory 301;

[0178] The processor 302 calls the executable program code stored in the memory 301 and executes the steps in the method for detecting the pressure resistance of the workpiece coating described in Embodiment I of the present invention.

[0179] Embodiment IV

[0180] An embodiment of the present invention discloses a computer-readable storage medium storing computer instructions, which are used to execute the steps in the method for detecting the pressure resistance of the workpiece coating described in Embodiment I of the present invention when the computer instructions are called.

[0181] Embodiment V

[0182] An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the steps in the method for detecting the pressure resistance of the workpiece coating described in Embodiment I.

[0183] Example Six

[0184] Please refer to Figure 5 , Figure 5 , which is a schematic structural diagram of a voltage withstand detection system disclosed in an embodiment of the present invention. As Figure 5 shown, the voltage withstand detection system includes a voltage withstand detection device 401 and a fluid injector 402. Among them, the voltage withstand detection device 401 is communicatively connected to the fluid injector 402, and a non-contact target workpiece is placed below the nozzle of the fluid injector 402; among them, the voltage withstand detection device 401 is used to execute the steps in the method for detecting the voltage withstand of the workpiece coating described in Embodiment One.

[0185] The device embodiments described above are only illustrative. The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0186] Through the above specific descriptions of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solutions, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium. The storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc memories, magnetic disk memories, tape memories, or any other computer-readable medium capable of carrying or storing data.

[0187] Finally, it should be noted that: what is disclosed by a method, device and system for pressure resistance detection of a workpiece coating disclosed in the embodiments of the present invention is only the preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for performing pressure resistance testing on a workpiece coating, characterized in that: The method comprises: performing a control operation on a fluid ejector so that the fluid ejector continuously ejects a conductive fluid toward a target workpiece to form a conductive gas film on a surface of the target workpiece; In the process of controlling the fluid ejector to eject the conductive fluid, a voltage is applied to an output end corresponding to the conductive fluid and a conductive position of the target workpiece, wherein the conductive position of the target workpiece is determined by a conductive gas film corresponding to the target workpiece; During the process of applying voltage, a withstand voltage test is performed on the coating of the target workpiece to obtain a withstand voltage test result of the target workpiece.

2. The method for pressure resistance testing of a workpiece coating according to claim 1, characterized in that: The method further comprises: determining a moving path of a moving object, the moving object including the target workpiece and / or the fluid ejector; The controlling operation of the fluid ejector to enable the fluid ejector to continuously eject the conductive fluid toward the target workpiece to form a conductive gas film on the surface of the target workpiece includes: According to the moving path of the moving object, a control operation is performed on the fluid ejector, so that the fluid ejector continuously ejects the conductive fluid toward the target workpiece to form a conductive gas film on the surface of the target workpiece.

3. The method for pressure resistance testing of a workpiece coating according to claim 2, characterized in that: Determining the moving path of the moving object includes: According to the attribute parameters of the target workpiece, a moving path matching the type of the target workpiece is determined from a plurality of pre-stored moving paths as the moving path of the moving object; or, Determine a single conductive geometric parameter formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once, wherein the single conductive geometric parameter corresponding to the target workpiece includes a single conductive air film area and / or a single maximum conductive air film diameter; The geometric parameters of the target workpiece and the conductive performance parameters of the conductive fluid ejected by the fluid ejector are collected, and a moving path of the moving object is generated according to the geometric parameters of the target workpiece, the single conductive geometric parameters corresponding to the target workpiece, and the conductive performance parameters of the conductive fluid ejected by the fluid ejector.

4. The method for performing pressure resistance testing on a workpiece coating according to any one of claims 1 to 3, characterized in that: The fluid ejector comprises a conductive fluid generator, or a nozzle and a conductive fluid generator, or a nozzle, a conductive fluid generator and a transmission medium; When the fluid ejector is the conductive fluid generator, the conductive fluid generator is used to generate the conductive fluid and eject the conductive fluid toward the target workpiece; When the fluid ejector is the ejector head and the conductive fluid generator, the ejector head and the conductive fluid generator are directly connected, and the conductive fluid generator is used to generate the conductive fluid, and the ejector head is used to eject the conductive fluid toward the target workpiece; When the fluid ejector is the nozzle, the conductive fluid generator and the transmission medium, the nozzle is connected to the conductive fluid generator through the transmission medium, and the conductive fluid generator is used to generate the conductive fluid and transmit the conductive fluid to the nozzle through the transmission medium, and the nozzle is used to eject the conductive fluid toward the target workpiece.

5. The method for pressure resistance testing of a workpiece coating according to claim 4, characterized in that: When the fluid ejector is the conductive fluid generator, the moving object specifically includes the target workpiece and / or the conductive fluid generator; When the fluid ejector is the nozzle and the conductive fluid generator, or the nozzle, the conductive fluid generator and the transmission medium, the moving object specifically includes the target workpiece and / or the nozzle; The type of the conductive fluid includes one of a conductive particle flow type, a conductive gas flow type, and a conductive ion flow type.

6. The method for pressure resistance testing of a workpiece coating according to claim 3 or 5, characterized in that: The determining of a single conductive geometric parameter formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once comprises: Acquire a vertical distance between the target workpiece and a nozzle of the fluid ejector and property parameters of the fluid ejector; According to the vertical distance corresponding to the target workpiece and the property parameters of the fluid ejector, a single conductive geometric parameter formed by the conductive fluid on the target workpiece when the fluid ejector ejects the conductive fluid once is determined.

7. The method for pressure resistance testing of a workpiece coating according to claim 6, characterized in that: When the fluid ejector is the conductive fluid generator, the property parameters of the fluid ejector include the nozzle diameter and / or nozzle area of ​​the conductive fluid generator; When the fluid ejector is the nozzle and the conductive fluid generator, or the nozzle, the conductive fluid generator and the transmission medium, the property parameters of the fluid ejector include nozzle parameters of the nozzle and / or parameters of the nozzle holes arranged on the nozzle, the nozzle parameters of the nozzle include nozzle diameter and / or nozzle area of ​​the nozzle, and the parameters of the nozzle holes on the nozzle include the number of nozzle holes arranged on the nozzle, the scattering area of ​​the nozzle holes, the diameter of the nozzle holes and the distribution density of all the nozzle holes; The geometric parameters of the target workpiece include one or more of the length of the target workpiece, the width of the target workpiece, the area of ​​the target workpiece, and the shape of the target workpiece.

8. The method for performing pressure resistance testing on a workpiece coating according to any one of claims 1 to 3, 5 and 7, characterized in that: The method further comprises: In the process of performing a pressure resistance test on the coating of the target workpiece, when the pressure resistance test result of the target workpiece is used to indicate that there are abnormal pressure resistance points in the coating of the target workpiece, obtaining the position of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points; Generate a pressure resistance abnormality prompt of the target workpiece according to the position of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points; The abnormal pressure resistance prompt of the target workpiece includes the position of each abnormal pressure resistance point of the target workpiece in the coating of the target workpiece and the number of all the abnormal pressure resistance points.

9. A withstand voltage testing device, characterized in that: The withstand voltage testing equipment comprises: A memory storing executable program code; a processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the method for pressure resistance testing of a workpiece coating as described in any one of claims 1-8.

10. A withstand voltage detection system, characterized in that: The pressure-resistant testing system comprises a pressure-resistant testing device and a fluid ejector, wherein the pressure-resistant testing device is in communication connection with the fluid ejector, and a non-contact target workpiece is placed under the ejection port of the fluid ejector; Wherein, the pressure resistance testing equipment is used to execute the method for pressure resistance testing of workpiece coating as described in any one of claims 1-8.

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