Automatic insulation and voltage resistance detection device for washing machine

Abstract

The utility model discloses an automatic insulation and voltage resistance detection device for a washing machine, which belongs to the field of electrical variable measurement, solves the problems of low insulation and voltage resistance detection efficiency and low detection accuracy of the conventional washing machine, and adopts the technical scheme that the automatic insulation and voltage resistance detection device comprises a conveying line and a detection station arranged on the conveying line, the visual detection mechanism is used for collecting position information of a key frame or a specific character of a washing machine console, the control center is used for receiving information sent by the visual detection mechanism and establishing a coordinate system to determine the position of a target key, and the control center controls the mechanical arm to obtain the corresponding pressing mechanism according to the determined target key. The mechanical arm is controlled to drive the pressing mechanism to move and press a target key of the console so as to activate the testing mode of the washing machine, and the insulation and voltage resistance testing mechanism conducts insulation and voltage resistance testing when the washing machine is in the testing mode. The insulation and voltage resistance detection efficiency and accuracy of the washing machine are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement electric variable, especially is automatic insulation withstand voltage detection device of washing machine. BACKGROUND

[0002] In order to ensure that the electrical safety performance of the electrical appliance meets the national standards and industry specifications, the electrical appliance needs to be subjected to insulation withstand voltage test before leaving the factory, such as the prior art invention patent CN106053112A discloses a single-barrel washing machine safety performance inspection method and the invention patent CN113702725A discloses a testing method and device for household electrical appliances, a household electrical appliance and a storage medium, the electrical appliance to be tested needs to be put into test mode before the insulation withstand voltage test, and the electrical appliance to be tested usually needs to be pressed at least two target keys at the same time, and the control panel keys of different models of washing machines are arranged differently, resulting in different positions of the target keys, and in the prior art, the key positions are usually identified by relying on template matching, a database is established before testing, and template images of control panels of different models of washing machines need to be made in advance, which requires a lot of preliminary preparation work, and when a new model of washing machine is launched, the database needs to be constantly updated and maintained, which has poor adaptability and may lead to mismatching and missing matching. When testing, the entire control panel of the washing machine needs to be photographed, the image area is large, the type of the control panel needs to be obtained by comparing the full image, the corresponding model is obtained, the template corresponding to the model is determined according to the database, and then the template is captured, the imaging requirement of the camera is high, the calculation and comparison are complex, and the detection efficiency is affected. If the layout or key position of the control panel changes in different batches of production, the template matching may not adapt to these dynamic changes, which may incorrectly identify the area similar to the template but not the target key, resulting in pressing the wrong key and causing the washing machine to fail to correctly enter the factory mode, and the testing process fails.

[0003] There is also an invention CN116973696A discloses an insulation withstand voltage detection device and system, but the electrical appliance to be tested needs to be transferred to the insulation withstand voltage detection device for detection, and then transferred from the insulation withstand voltage detection device after detection, and the washing machine is heavy, so the electrical appliance needs to be carried and positioned before and after each detection, and the detection efficiency is low. UTILITY MODEL CONTENTS

[0004] The utility model wants to achieve the purpose of providing a washing machine automatic insulation withstand voltage detection device, solving the problems of poor adaptability, low detection efficiency and low detection accuracy of the existing washing machine insulation withstand voltage detection, effectively improving the adaptability, detection efficiency and detection accuracy of the washing machine insulation withstand voltage detection.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: automatic insulation withstand voltage detection device of washing machine, including conveying line and the detection station of being located on conveying line, the detection station is equipped with control center, insulation withstand voltage testing mechanism, mechanical arm, visual detection mechanism and a plurality of pressing mechanism, the pressing mechanism can be installed on the mechanical arm, the visual detection mechanism is used for gathering the position information of washing machine console's button frame or specific character, control center is electrically connected insulation withstand voltage testing mechanism, mechanical arm, visual detection mechanism and pressing mechanism, control center is used for accepting the information sent by visual detection mechanism and establishes the coordinate system to determine the position of target button, control center according to the target button of determining control mechanical arm to obtain corresponding pressing mechanism, and control mechanical arm drives pressing mechanism to move to press the target button of console to activate the test mode of washing machine, insulation withstand voltage testing mechanism carries out insulation withstand voltage test when washing machine is in test mode.

[0006] After adopting the above technical scheme, the utility model has the following advantages: first, the washing machine to be tested does not need to be transferred to a special insulation withstand voltage detection device, but all detection steps can be completed directly on the conveying line, continuous detection can be realized, the detection period of a single washing machine is greatly shortened, and the efficiency of washing machine insulation withstand voltage detection is improved. Secondly, compared with full image matching, the visual detection mechanism collects the position information of the button frame or specific character of the washing machine console. Through feature point matching, only the key points in the image need to be focused on, unnecessary calculation amount is reduced, and detection speed is improved. Feature point matching can handle partial occlusion, rotation, scaling and deformation in the image. Even if only part of the area of the button is visible, the light is relatively dark or the light source is unstable, there is a slight change in the position of the button, or the layout of the buttons of different models of washing machines is different, the visual detection mechanism can quickly adapt and is not limited to the preset template image. Therefore, it can better adapt to different models of washing machines and the possible slight differences between the same model of washing machines. This not only avoids the problem of false matching caused by changes in the design of the control panel, but also makes it possible to activate the test mode as accurately as possible each time, reduces the dependence on the template database and maintenance work, and then the control center establishes a coordinate system based on the data provided by the visual detection mechanism, accurately determines the position of the target button, controls the mechanical arm to obtain the corresponding pressing mechanism, and accurately presses the target button through the mechanical arm driving the pressing mechanism. This can provide higher operation precision and reliability, effectively prevent the occurrence of false operation, and enable the mechanical arm to completely autonomously complete the process from recognition to pressing without human intervention, further improving the automation level of the production line and realizing automatic insulation withstand voltage detection of the washing machine.

[0007] Further, the pressing mechanism comprises a pressing head of a pressable button, and the detection station is further provided with a storage area for storing the pressing mechanism, wherein the storage area is provided with pressing mechanisms with different numbers of pressing heads, and the control center controls the robot arm to grab the pressing mechanism with the target number of pressing heads based on the target number of buttons.

[0008] By using the foregoing technical scheme, different models of washing machines can have different numbers of buttons, and the storage area can store pressing mechanisms with different numbers of pressing heads, so that appropriate combinations of pressing heads can be quickly replaced according to the requirements of different models, thereby further improving the adaptability and flexibility of the system.

[0009] Further, the storage area is provided with a plurality of pressing mechanisms with the same number of pressing heads, and the distance between the pressing heads in each pressing mechanism is different, and the control center controls the robot arm to grab the pressing mechanism with the target distance of pressing heads based on the distance between the target buttons, so as to press at least two target buttons at the same time.

[0010] By using the foregoing technical scheme, appropriate pressing heads can be selected according to the actual distance between the target buttons, and the use of pressing heads with appropriate spacing can minimize interference when pressing multiple buttons at the same time, thereby improving the reliability of the detection process, adapting to different button layouts of different models of washing machines, and enhancing the ability to adapt to different detection requirements.

[0011] Further, the storage area comprises a mounting seat, and a plurality of mounting racks are arranged at intervals on the mounting seat, and the pressing mechanism is detachably mounted on the mounting rack through a magnetic attraction structure.

[0012] By using the foregoing technical scheme, the magnetic attraction structure allows the pressing mechanism to be quickly mounted and detached, so that different types of pressing mechanisms can be quickly replaced, thereby improving the grabbing efficiency.

[0013] Further, the mounting rack is provided with a sensor for marking different pressing mechanisms, and the control center is electrically connected with the sensor to identify different pressing mechanisms.

[0014] By using the foregoing technical scheme, the sensor can identify the pressing mechanism, which helps the robot arm to quickly grab the target pressing mechanism.

[0015] Further, the pressing mechanism comprises a pressing head, a telescopic rod, a fixing seat, a limiting piece and a spring, the telescopic rod can pass through the fixing seat and can slide relative to the fixing seat, the pressing head and the limiting piece are respectively arranged on the part of the telescopic rod located on both sides of the fixing seat, one end of the spring abuts against the pressing head, and the other end of the spring abuts against the fixing seat.

[0016] Through the technical scheme, the spring plays a buffering role, can absorb the impact force generated in the pressing process, avoids misoperation or damage of the key due to excessive or insufficient pressing force, the limiting piece can prevent the telescopic rod from being excessively extended or retracted, and the pressing head is always in a predetermined working range as much as possible, thereby improving the stability and reliability of pressing.

[0017] Further, the output end of the mechanical arm is provided with a base and at least two grabbing seats for grabbing the pressing mechanism arranged on the base.

[0018] Through the technical scheme, at least two spaced grabbing seats are arranged, the mechanical arm can grab multiple pressing mechanisms at a time, the number of times of grabbing and placing the pressing mechanism is reduced, the detection efficiency is improved, and multiple pressing mechanisms can simultaneously press the keys of the washing machine.

[0019] Further, the base is provided with a transverse sliding rail and a longitudinal sliding rail slidingly connected to the transverse sliding rail, at least one grabbing seat is connected to the longitudinal sliding rail, a longitudinal driver is arranged on the longitudinal sliding rail and used to drive the grabbing seat to longitudinally slide on the longitudinal sliding rail, and a transverse driver is arranged on the transverse sliding rail and used to drive the longitudinal sliding rail to transversely slide on the transverse sliding rail.

[0020] Through the technical scheme, the biaxial adjustment design of the transverse sliding rail and the longitudinal sliding rail enables the mechanical arm to flexibly adjust the position of the pressing mechanism, further enables the pressing mechanism to adapt to different key layouts of different models of washing machines, and also completes grabbing and placing of multiple pressing mechanisms.

[0021] Further, the insulation voltage test mechanism comprises a test component arranged on one side of the conveying line and a telescopic driver, the test component is arranged on the output end of the telescopic driver, and the telescopic driver is used to drive the test component to enter the conveying line and approach the washing machine or move away from the washing machine and move out of the conveying line.

[0022] Through the technical scheme, when the washing machine reaches the detection station, the telescopic driver can drive the test component to enter the conveying line and approach the washing machine, after detection is completed, the test component quickly moves out of the conveying line, and the washing machine can continue to advance along the conveying line, without affecting normal conveying of other washing machines, thereby ensuring smooth operation of the production line, reducing stagnation time, and improving production efficiency.

[0023] Further, one side of the conveying line is provided with a guide rod and a guide driver, the guide rod is located upstream of the detection station, and the guide rod is used to guide the conveying position of the washing machine on the conveying line and make the washing machine conveyed to a predetermined position of the detection station.

[0024] Through the technical scheme, the guide rod can make the washing machine accurately reach the detection station according to the predetermined path on the conveying line as far as possible, the position precision of the washing machine during detection is improved, and the detection error caused by the position deviation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further described below in combination with the drawings:

[0026] Figure 1 It is structure schematic diagram of washing machine automatic insulation withstand voltage detection device of the utility model;

[0027] Figure 2 It is structure schematic diagram of another view of washing machine automatic insulation withstand voltage detection device of the utility model;

[0028] Figure 3 It is part structure schematic diagram of washing machine automatic insulation withstand voltage detection device of the utility model;

[0029] Figure 4 It is structure schematic diagram of still another view of washing machine automatic insulation withstand voltage detection device of the utility model;

[0030] Figure 5 It is structure schematic diagram of portal frame of the utility model;

[0031] Figure 6 It is structure schematic diagram of mechanical arm of the utility model;

[0032] Figure 7 It is structure schematic diagram of storage area being equipped with multiple pressing mechanisms of the utility model;

[0033] Figure 8 It is structure schematic diagram of base of the utility model;

[0034] Figure 9 It is structure schematic diagram of guide rod and guide driver of the utility model;

[0035] Figure 10 It is flow chart of washing machine automatic insulation withstand voltage detection method of the utility model;

[0036] In the figure, 10, washing machine;

[0037] 20, conveying line;21, detection station;

[0038] 30, portal frame;31, storage area;32, mounting seat;33, mounting frame;34, magnet;35, display mounting portion;36, controller mounting portion;37, inductor;

[0039] 40, visual detection mechanism;

[0040] 50, pressing mechanism; 51, pressing head; 52, telescopic rod; 53, fixing base; 54, limiting piece; 55, spring;

[0041] 60, mechanical arm; 61, base; 62, grabbing seat; 621, clamping jaw; 622, positioning protrusion; 63, transverse slide rail; 64, longitudinal slide rail; 65, longitudinal driver; 66, first transmission wheel; 67, second transmission wheel; 68, transmission belt;

[0042] 70, insulation voltage test mechanism; 71, test component; 72, telescopic driver;

[0043] 80, guiding rod; 81, guiding driver. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0045] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0046] It should be understood that in various embodiments of the present application, the size of the serial number as related to each process does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0047] It should be understood that in the present application, "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] It should be understood that in the present application, "multiple" means two or more. "And / or" is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, X and / or Y can represent three cases: X alone, X and Y exist at the same time, and Y alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "Including X, Y and Z", "including X, Y, Z" means that X, Y and Z are all included, "including X, Y or Z" means that one of X, Y and Z is included, and "including X, Y and / or Z" means that any one or any two or three of X, Y and Z is included.

[0049] The technical scheme of the present application will be described in detail below with specific examples. The following specific examples can be combined or replaced according to actual conditions, and the same or similar concepts or processes may not be described in some examples.

[0050] As shown in Figures 1 to 9 The utility model provides a washing machine automation insulation withstand voltage detection device, including conveying line 20 and being located on conveying line 20 detection station 21, detection station 21 is equipped with control center, insulation withstand voltage test mechanism 70, mechanical arm 60, visual detection mechanism 40 and a plurality of pressing mechanism 50, pressing mechanism 50 can be installed on mechanical arm 60, visual detection mechanism 40 is used to gather the position information of the specific character of washing machine 10 console, control center electric connection insulation withstand voltage test mechanism 70, mechanical arm 60, visual detection mechanism 40 and pressing mechanism 50, control center is used to accept the information sent by visual detection mechanism 40 and establishes coordinate system to determine the position of target button, control center according to the target button determined control mechanical arm 60 obtains corresponding pressing mechanism 50, and control mechanical arm 60 drives pressing mechanism 50 to move to press the target button of console to activate the test mode of washing machine 10, and insulation withstand voltage test mechanism 70 carries out insulation withstand voltage test when washing machine 10 is in test mode.

[0051] Firstly, the washing machine 10 to be tested does not need to be transferred to a special insulation voltage detection device, but all detection steps can be completed directly on the conveying line 20, continuous detection can be realized, the detection period of a single washing machine 10 is greatly shortened, and the efficiency of the insulation voltage detection of the washing machine 10 is improved. Secondly, compared with full image matching, the visual detection mechanism 40 collects the position information of the key frame or specific characters of the washing machine 10 console, and only needs to focus on the key points in the image through feature point matching, thereby reducing unnecessary calculation and improving detection speed. Feature point matching can handle partial occlusion, rotation, scaling and deformation in the image, so even if only part of the area of the key is visible, in the case of dark light or unstable light source, the position of the key has a slight change or the layout of the keys of different models of washing machines 10 is different, the visual detection mechanism 40 can quickly adapt and is not limited to the preset template image. Therefore, it can better adapt to the case that different models of washing machines 10 and the same model of washing machines 10 may have slight differences. This not only avoids the problem of false matching caused by changes in the design of the control panel, but also makes it possible to activate the test mode as accurately as possible each time, while reducing the dependence on and maintenance work of the template database. Then, the control center establishes a coordinate system based on the data provided by the visual detection mechanism 40, accurately determines the position of the target key, controls the mechanical arm 60 to obtain the corresponding pressing mechanism 50, and then accurately presses the target key through the mechanical arm 60 driving the pressing mechanism 50. This can provide higher operation precision and reliability, effectively prevent the occurrence of misoperation, and also enable the mechanical arm 60 to completely autonomously complete the process from recognition to pressing without human intervention, thereby further improving the automation level of the production line and realizing automatic insulation voltage detection of the washing machine 10.

[0052] It should be noted that the detection station 21 is provided with a gantry 30, the conveying line 20 is arranged in the gantry 30, the mechanical arm 60 and the control center are arranged on the gantry 30, and the gantry 30 can be provided with a display for displaying test results and a display mounting portion 35 for mounting the display. It can also be provided with a controller and a controller mounting portion 36 for mounting the controller. Among them, the visual detection mechanism 40 is arranged on the mechanical arm 60, and the visual detection mechanism 40 can be an industrial camera that can move synchronously with the mechanical arm 60. This avoids the prior art of arranging the visual detection mechanism 40 at a single position on the gantry 30, which leads to the situation that the position information of the specific characters of the washing machine 10 console collected by the visual detection mechanism 40 is not complete.

[0053] Specifically, the insulation voltage test mechanism 70 includes a test component 71 arranged on one side of the conveying line 20 and a telescopic drive 72, the test component 71 is arranged on the output end of the telescopic drive 72, and the telescopic drive 72 is used to drive the test component 71 to enter the conveying line 20 and approach the washing machine 10 or move away from the washing machine 10 and move out of the conveying line 20. When the washing machine 10 reaches the detection station 21, the telescopic drive 72 can drive the test component 71 to enter the conveying line 20 and approach the washing machine 10, and after the detection is completed, the test component 71 quickly moves out of the conveying line 20, and the washing machine 10 can continue to advance along the conveying line 20, realizing seamless connection of detection and conveying, ensuring smooth operation of the production line, reducing stagnation time, and improving production efficiency.

[0054] It should be noted that the voltage test mainly includes testing the insulation capability between the electrical components of the washing machine 10 by applying an alternating voltage higher than the rated voltage. The test voltage generally lasts for a period of time (such as 1 minute), during which it is observed whether there is a breakdown, flashover or current leakage phenomenon. The insulation test mainly includes measuring the insulation resistance between the internal circuit of the washing machine 10 and the shell under the application of a certain voltage. A high insulation resistance value indicates good insulation performance, and the grounding connection of the washing machine 10 is checked to ensure that the current can be safely discharged through the grounding line in the event of a short circuit or other fault, preventing electric shock accidents.

[0055] Since different washing machines 10 require pressing different numbers of keys to enter the test mode, in this embodiment, the output end of the mechanical arm 60 is provided with a base 61 and a grabbing seat 62 arranged on the base 61 for grabbing the pressing mechanism 50, the pressing mechanism 50 includes a pressing head 51 that can press the keys, and the detection station 21 is further provided with a storage area 31 for storing the pressing mechanism 50, the storage area 31 is arranged on the gantry 30, the storage area 31 is provided with the pressing mechanism 50 with different numbers of pressing heads 51, and the control center controls the mechanical arm 60 to grab the pressing mechanism 50 with the target number of pressing heads 51 based on the number of target keys. The appropriate combination of pressing heads 51 can be quickly replaced according to the needs of different models, improving the adaptability and flexibility of the system.

[0056] And the distance between different keys of different washing machines 10 is different, so in this embodiment, the storage area 31 is provided with a plurality of pressing mechanisms 50 with the same number of pressing heads 51, the distance between the pressing heads 51 in each pressing mechanism 50 is different, and the control center controls the mechanical arm 60 to grab the pressing mechanism 50 with the target distance of the pressing heads 51 based on the distance between the target keys, so as to press at least two target keys at the same time, improving the reliability of the detection process, adapting to different key layouts of different models of washing machines 10, and enhancing the ability to adapt to different detection needs.

[0057] Specifically, the storage area is provided with one pressing mechanism 50 of the pressing head 51 and two pressing mechanisms 50 of the pressing head 51, and the two pressing mechanisms 50 of the pressing head 51 are provided with a plurality of pressing mechanisms 50, each of which has a different distance between the two pressing mechanisms 50 of the pressing head 51.

[0058] In order to facilitate the mechanical arm 60 to quickly grab the target pressing mechanism 50, the storage area 31 comprises a mounting seat 32, and a plurality of mounting racks 33 are arranged on the mounting seat 32 in a spaced manner. The pressing mechanism 50 is detachably mounted on the mounting rack 33 through a magnetic attraction structure. When different types of pressing mechanisms 50 need to be replaced, it can be quickly completed, improving the grabbing efficiency.

[0059] Further, the mounting rack 33 is provided with a sensor 37 for marking different pressing mechanisms 50, and the control center is electrically connected with the sensor 37 to identify different pressing mechanisms 50, which helps the mechanical arm 60 to quickly grab the target pressing mechanism 50 and improves the accuracy of grabbing.

[0060] In addition, the base 61 is provided with at least two grabbing seats 62, and the at least two grabbing seats 62 are arranged in a spaced manner. By arranging the at least two grabbing seats 62 arranged in a spaced manner, the mechanical arm 60 can grab multiple pressing mechanisms 50 at a time, reducing the number of times required for grabbing and placing the pressing mechanisms 50, thereby improving the detection efficiency and realizing the simultaneous pressing of multiple pressing mechanisms 50 on the washing machine 10 keys.

[0061] In order to press the keys more accurately, the base 61 is provided with a horizontal slide rail 63 and a vertical slide rail 64 slidably connected to the horizontal slide rail 63. The at least one grabbing seat 62 is connected to the vertical slide rail 64, and the vertical slide rail 64 is provided with a vertical driver 65 for driving the grabbing seat 62 to slide vertically on the vertical slide rail 64. The horizontal slide rail 63 is provided with a horizontal driver for driving the vertical slide rail 64 to slide horizontally on the horizontal slide rail 63. The dual-axis adjustment design of the horizontal slide rail 63 and the vertical slide rail 64 enables the mechanical arm 60 to flexibly adjust the position of the pressing mechanism 50, so that the pressing mechanism 50 can adapt to different key layouts of different models of washing machines 10, and also complete the grabbing and placing of multiple pressing mechanisms 50.

[0062] In the embodiment, the vertical slide rail 64 is slidably installed on the horizontal slide rail 63 through a sliding block, the sliding block is provided with a roller, the roller rotates relative to the horizontal slide rail 63 to drive the sliding movement, the vertical slide rail 64 is a lead screw, the grabbing seat 62 is connected to the lead screw through a nut, the output shaft of the vertical driver 65 is provided with a first transmission wheel 66, the lead screw is provided with a second transmission wheel 67, and the first transmission wheel 66 and the second transmission wheel 67 are connected through a transmission belt 68. The power of the vertical driver 65 is more stably transmitted to the lead screw, so that the movement of the grabbing seat 62 is more stable and the grabbing is more stable.

[0063] In the embodiment, the two grabbing seats 62 are provided, one of which is fixed on the base 61, and the other is connected to the longitudinal slide rail 64 to change the relative position of the two grabbing seats 62, so that the pressing mechanisms 50 on the two grabbing seats 62 can press the keys at different positions at the same time.

[0064] Specifically, the grabbing seat 62 includes oppositely arranged clamping jaws 621, the clamping jaws 621 are provided with positioning protrusions 622, the pressing mechanism 50 is provided with a matching groove, the clamping jaws 621 grab the pressing mechanism 50 at the same time, and the positioning protrusions 622 are clamped in the matching groove to avoid loosening of the pressing mechanism 50 and effectively avoid the situation that the pressing mechanism 50 falls off, which can also improve the accuracy of pressing.

[0065] Because the key depths of different washing machines 10 are different, and the pressing force of the mechanical arm 60 is difficult to control, the pressing mechanism 50 includes a telescopic rod 52, a fixed seat 53, a limiting piece 54 and a spring 55, the telescopic rod 52 can pass through the fixed seat 53 and can slide relative to the fixed seat 53, the pressing head 51 and the limiting piece 54 are respectively arranged on the part of the telescopic rod 52 located on the two sides of the fixed seat 53, one end of the spring 55 abuts against the pressing head 51, and the other end of the spring 55 abuts against the fixed seat 53, the spring 55 plays a buffering role and can absorb the impact force generated in the pressing process, avoiding misoperation or damage to the keys caused by excessive or insufficient pressing force, the limiting piece 54 can prevent the telescopic rod 52 from being excessively extended or retracted, so as to make the pressing head 51 always be in a predetermined working range as much as possible, and improve the stability and reliability of pressing. The fixed seat 53 has magnetism, the mounting seat 32 is provided with a magnet 34, and the fixed seat 53 is installed on the mounting seat 32 by magnetic attraction with the magnet 34. The matching groove is arranged on the fixed seat 53.

[0066] Because the position of the washing machine 10 on the conveying line 20 may deviate, the washing machine 10 cannot accurately enter the detection station 21, thereby increasing the detection difficulty and affecting the detection accuracy. Therefore, in the embodiment, one side of the conveying line 20 is provided with a guide rod 80 and a guide driver, the guide rod 80 is located upstream of the detection station 21, and the guide rod 80 is used to guide the conveying position of the washing machine 10 on the conveying line 20 and make the washing machine 10 conveyed to a predetermined position of the detection station 21, thereby improving the position accuracy of the washing machine 10 during detection and reducing the detection error caused by position deviation.

[0067] In the embodiment, the guide rod 80 and the insulation voltage-resistant mechanism are located on opposite sides of the conveying line 20.

[0068] In use, for example, the "power on" and "quick wash" keys are pressed simultaneously to enter the test mode, and the "power on" and "quick wash" keys have different key distances in different models of washing machines 10. The position information of the "power on" and "quick wash" keys is collected by the visual detection mechanism 40, and the X coordinate system and Y coordinate system are established to determine the distance between the two keys. The control center determines the target keys and controls the mechanical arm 60 to obtain the corresponding pressing mechanism 50. The control center controls the mechanical arm 60 to grab the pressing mechanism 50 with two pressing heads 51 and a target distance between the pressing heads 51, and adjusts the position of the pressing mechanism 50 through the transverse driver and the longitudinal driver 65 to press the "power on" and "quick wash" keys on the control panel to enter the test mode. The insulation withstand voltage test mechanism 70 performs insulation withstand voltage test when the washing machine 10 is in the test mode. It can be understood that in other embodiments, the pressing mechanism can be provided with three or four pressing heads to simultaneously install multiple keys.

[0069] As shown in Figure 10 The washing machine automatic insulation withstand voltage detection method includes the washing machine 10 automatic insulation withstand voltage detection device of the above technical solutions, and the washing machine 10 automatic insulation withstand voltage detection method includes:

[0070] S1: The conveying line 20 conveys the washing machine 10 to the detection station 21;

[0071] S2: The visual detection mechanism 40 collects the position information of the specific characters on the control panel of the washing machine 10, and the control center is used to receive the information sent by the visual detection mechanism 40 and establish a coordinate system to determine the position of the target keys;

[0072] S3: The mechanical arm 60 controls the mechanical arm 60 to grab the pressing mechanism 50 with a target number of pressing heads 51 and a target distance between the pressing heads 51 based on the number of target keys and the distance between the target keys;

[0073] S4: The control center controls the mechanical arm 60 to move and press the target keys on the control panel to activate the test mode of the washing machine 10;

[0074] S5: The visual detection mechanism 40 collects the display information of the control panel of the washing machine 10, and the control center judges whether the washing machine 10 enters the test mode according to the display information of the control panel of the washing machine 10 collected by the visual detection mechanism 40. If the washing machine 10 enters the test mode, S6 is entered, otherwise S2 is entered;

[0075] S6: The insulation withstand voltage test mechanism 70 performs insulation withstand voltage test.

[0076] From the transport of the washing machine 10, the identification of the target button, the activation of the test mode, to the final insulation withstand voltage test, the entire process is fully automated, greatly reducing human intervention and improving work efficiency and test consistency. Secondly, the visual inspection mechanism 40 collects the position information of the button frame or specific characters, and the control center establishes a coordinate system based on this to accurately locate the target button, rather than relying on a fixed template. Therefore, the system can adapt well to different models of washing machines 10. Subsequently, the robotic arm 60 accurately grasps the corresponding pressing mechanism 50 based on this information and performs the pressing operation, ensuring the accuracy of the operation. After pressing the target button, the system again collects the display information on the control panel through the visual inspection mechanism 40, and the control center analyzes and judges whether the washing machine 10 has successfully entered the test mode. This process not only verifies whether the previous pressing operation was successful but also provides a basis for subsequent operations, ensuring the validity of the test. If the washing machine 10 fails to enter the test mode in step S5, the system will automatically return to S2 to re-perform button identification and pressing operations. This closed-loop control mechanism can effectively handle abnormal situations and ensure the smooth progress of the test process.

[0077] Since the position of the washing machine 10 on the conveyor line 20 may be deviated, it may not be able to enter the inspection station 21 accurately, thereby increasing the inspection difficulty and affecting the inspection accuracy. Therefore, the washing machine 10 needs to undergo a correction process before entering the inspection station 21. The correction driver 81 drives the correction rod 80 to correct the conveying position of the washing machine 10 on the conveyor line 20, so that the washing machine 10 can be conveyed to the inspection station 21 more accurately in S2.

[0078] Understandably, in other embodiments, the visual inspection mechanism in S3 may also collect the position information of the button border of the washing machine console, or simultaneously collect the button border and specific characters of the washing machine console.

[0079] Understandably, in other embodiments, the arrangement of the pressing heads of the pressing mechanism is different to meet the button arrangement on different washing machine control panels.

[0080] Understandably, in other embodiments, since the button border of the washing machine is usually matched with the button itself, the vision inspection mechanism can also collect the position information of the button border on the washing machine control panel to determine the position of the target button. The button border can be the border of the power button, the border of a function key, or even the border of the entire control panel.

[0081] Understandably, in other embodiments, the visual inspection mechanism may also simultaneously capture the button borders and specific characters on the washing machine control panel.

[0082] It should be noted that the robotic arm has a multi-joint structure, which enables it to rotate freely in multiple directions, increasing its operating range.

[0083] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. An automated insulation withstand voltage testing device for washing machines, characterized in that, The system includes a conveyor line and a testing station located on the conveyor line. The testing station is equipped with a control center, an insulation withstand voltage testing mechanism, a robotic arm, a vision inspection mechanism, and multiple pressing mechanisms. The pressing mechanisms can be mounted on the robotic arm. The vision inspection mechanism is used to collect position information of the button borders or specific characters on the washing machine control panel. The control center is electrically connected to the insulation withstand voltage testing mechanism, the robotic arm, the vision inspection mechanism, and the pressing mechanisms. The control center receives information sent by the vision inspection mechanism and establishes a coordinate system to determine the position of the target button. Based on the determined target button, the control center controls the robotic arm to acquire the corresponding pressing mechanism and controls the robotic arm to move the pressing mechanism to press the target button on the control panel, thereby activating the washing machine's test mode. The insulation withstand voltage testing mechanism performs insulation withstand voltage testing while the washing machine is in test mode.

2. The automated insulation withstand voltage testing device for washing machines according to claim 1, characterized in that, The pressing mechanism includes a pressing head that can press a button. The detection station is also provided with a storage area for storing pressing mechanisms. The storage area is provided with pressing mechanisms with different numbers of pressing heads. The control center controls the robotic arm to grasp pressing mechanisms with a target number of pressing heads based on the number of target buttons.

3. The automated insulation withstand voltage testing device for washing machines according to claim 2, characterized in that, The storage area is equipped with multiple pressing mechanisms with the same number of pressing heads. The distance between the pressing heads in each pressing mechanism is different. The control center controls the robotic arm to grasp the pressing mechanism with pressing heads at the target distance based on the distance between the target buttons, so as to press at least two target buttons at the same time.

4. The automated insulation withstand voltage testing device for washing machines according to claim 2 or 3, characterized in that, The storage area includes a mounting base with multiple spaced mounting brackets. The pressing mechanism is detachably mounted on the mounting brackets via a magnetic attraction structure.

5. The automated insulation withstand voltage testing device for washing machines according to claim 4, characterized in that, The mounting bracket is equipped with sensors that mark different pressing mechanisms, and the control center is electrically connected to the sensors to identify different pressing mechanisms.

6. The automated insulation withstand voltage testing device for washing machines according to claim 1, characterized in that, The pressing mechanism includes a pressing head, a telescopic rod, a fixed base, a limiting member, and a spring. The telescopic rod can pass through the fixed base and slide relative to the fixed base. The pressing head and the limiting member are respectively provided on the telescopic rod on the portions located on both sides of the fixed base. One end of the spring abuts against the pressing head, and the other end of the spring abuts against the fixed base.

7. The automated insulation withstand voltage testing device for washing machines according to claim 1, characterized in that, The output end of the robotic arm is provided with a base and at least two gripping seats for gripping and pressing mechanisms on the base, with the at least two gripping seats spaced apart.

8. The automated insulation withstand voltage testing device for washing machines according to claim 7, characterized in that, The base is provided with a transverse slide rail and a longitudinal slide rail slidably connected to the transverse slide rail. At least one gripper is connected to the longitudinal slide rail. The longitudinal slide rail is provided with a longitudinal driver that drives the gripper to slide longitudinally on the longitudinal slide rail. The transverse slide rail is provided with a transverse driver that drives the longitudinal slide rail to slide laterally on the transverse slide rail.

9. The automated insulation withstand voltage testing device for washing machines according to claim 1, characterized in that, The insulation withstand voltage test mechanism includes a test component and a telescopic driver located on one side of the conveyor line. The test component is located at the output end of the telescopic driver, which is used to drive the test component into the conveyor line and move it closer to or away from the washing machine and out of the conveyor line.

10. The automated insulation withstand voltage testing device for washing machines according to claim 1, characterized in that, A guide rod and a guide driver are provided on one side of the conveyor line. The guide rod is located upstream of the inspection station and is used to guide the conveying position of the washing machine on the conveyor line and transport it to the predetermined position of the inspection station.

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