Device for testing functional coating of microcrystalline glass of induction cooker

Abstract

The invention relates to the technical field of coating testing devices, and particularly discloses an induction cooker glass ceramic functional coating testing device which comprises a base and a detection box located on the base, a detection cavity is formed in the detection box, a testing table is arranged in the detection cavity, and the testing table comprises a testing execution mechanism and a testing placement seat; the test execution mechanism comprises a friction disc, an electromagnetic coil is arranged in the friction disc, and a groove which is spirally distributed is formed in the bottom of the friction disc; the test placement seat comprises a loading table of which the middle of the top is provided with a to-be-tested coating panel in a position corresponding to the friction disc, the periphery of the top of the loading table is provided with a convex check ring, the upper part of the convex check ring is provided with a nozzle corresponding to the to-be-tested coating panel, and the nozzle is communicated with a storage tank arranged at the bottom of the loading table through a pressurizing pipeline; a magnetorheological abrasive is stored in the storage tank; the device has the advantages of high test precision and real test simulation.

Description

Technical Field

[0001] The present invention relates to the technical field of coating testing devices, and specifically discloses a testing device for the functional coating of the microcrystalline glass of an induction cooker. Background Art

[0002] During the daily use of the microcrystalline glass panel of an induction cooker, the functional coating on its surface needs to withstand multiple complex working conditions such as the sliding friction of cookware, high-temperature thermal shock, and oil stain corrosion for a long time. The performance of the coating directly affects the service life of the panel, the scratch and wear resistance, and the cleaning convenience. If the coating wears or peels off prematurely, it will not only reduce the aesthetic appearance of the induction cooker, but may also expose the panel substrate, affect the electromagnetic induction efficiency, and even pose a safety hazard. Therefore, comprehensively testing the performance of the coating on the microcrystalline glass panel is a key link in ensuring the product quality and safety of the induction cooker. Among many performance indicators, the wear resistance is particularly important. Since the microcrystalline glass panel is frequently dragged by cookware and scratched during the cleaning process during use, it will cause wear to the coating.

[0003] Currently, for the wear resistance testing device of the coating on the microcrystalline glass panel of an induction cooker in the prior art, most use a friction disk made of traditional fixed materials for testing. This type of device directly contacts and rotates the friction disk with the coating surface to simulate the wear process. However, this method has significant defects: First, the friction working conditions are single. The material and surface roughness of the traditional friction disk are fixed, and it is impossible to simulate the diverse friction coefficients in different cookware (such as iron pots, stainless steel pots) or scenarios containing particulate impurities, resulting in the disconnection between the test results and the actual use working conditions. Second, the management of the wear medium is lacking. The coating debris generated during the test process is likely to remain in the test area, interfering with subsequent test data, and it is impossible to dynamically supplement or replace the wear medium, affecting the accuracy and repeatability of the test. Summary of the Invention

[0004] The purpose of the present invention is to provide a testing device for the functional coating of the microcrystalline glass of an induction cooker to solve one of the above technical problems existing in the prior art.

[0005] Specifically, the present invention is realized through the following technical solutions: A testing device for the functional coating of the microcrystalline glass of an induction cooker includes a base, a detection box located on the base, a detection cavity provided inside the detection box, a test bench provided inside the detection cavity, and the test bench includes a test execution mechanism and a test placement seat; The test execution mechanism includes a friction disc, an electromagnetic coil is arranged inside the friction disc, and spiral grooves are formed at the bottom of the friction disc; the test placement seat includes a loading platform for clamping a to-be-tested coated panel at a position corresponding to the friction disc in the middle of the top, a raised retaining ring is arranged around the top of the loading platform, a nozzle corresponding to the to-be-tested coated panel is formed at the upper part of the raised retaining ring, the nozzle is communicated with a storage tank arranged at the bottom of the loading platform through a pressurized pipeline, and magnetorheological abrasive is stored in the storage tank. When performing the wear resistance test of the coating, the friction disc moves downward close to the loading platform and rotates, the nozzle sprays magnetorheological abrasive onto the surface of the loading platform, and after the friction disc approaches the loading platform, it is blocked by the raised retaining ring to form an annular gap for accommodating the magnetorheological abrasive, and the electromagnetic coil is energized to generate an electromagnetic adsorption force, so as to drive the magnetorheological abrasive to perform the wear resistance test on the to-be-tested coated panel by the rotation of the friction disc.

[0006] It should be noted that in this solution, the state of the abrasive is adjusted electromagnetically to realize continuous adjustment of the friction coefficient, and the friction characteristics of different materials such as iron pots and stainless steel pots can be accurately reproduced (that is, by adjusting the electromagnetic field strength to change the state of the magnetorheological abrasive and adjusting its friction coefficient to simulate the friction of different materials of cookware), meeting the parameter requirements of different test standards, and solving the problem of debris accumulation in traditional tests through the friction disc and spiral grooves, effectively eliminating debris interference, ensuring the stability of the test environment, and improving the data accuracy of the test results.

[0007] Furthermore, a lift drive device is further arranged at the top of the friction disc, the lift drive device includes a vertically arranged lift push rod, a motor is installed at the lifting end of the lift push rod through a connecting flange, and the output end of the motor is connected to the top of the friction disc.

[0008] Through the above technical solution, the present application solves the problem that the contact pressure of the friction disc in the traditional test device is not adjustable, and realizes the wear resistance test of the coating under different pressure conditions. Specifically, through the precise displacement control of the lift push rod, the pressure influence of the weight difference of the cookware in actual use on the coating can be reproduced; through the independent adjustment of the motor speed and the downward pressure, the friction scenarios of the cookware being quickly dragged or slowly moved can be simulated. In addition, the rigid connection structure avoids the pressure fluctuation caused by the deformation of the transmission system, and improves the repeatability and reliability of the test data.

[0009] Preferably, the electromagnetic coil is installed at the bottom of a connecting disc located inside the friction disc, and the outside of the connecting disc is rotationally matched with the inside of the friction disc through embedded balls.

[0010] Through the above technical solution, the mechanical interference between the electromagnetic coil and the rotating friction disc is effectively eliminated, enabling the magnetorheological abrasive to form a controllable wear path under the dual action of a stable magnetic field and the helically distributed grooves, thereby improving the repeatability and data reliability of the coating wear resistance test.

[0011] Preferably, the opening of the groove extends to the edge position of the friction disc, and the helical direction of the groove is opposite to the rotation direction of the friction disc.

[0012] Through the above technical solution, the uneven distribution of abrasives and the retention of debris are effectively eliminated, ensuring that the contact pressure and movement trajectory between the abrasives and the coating are controllable during the test. This design not only improves the accuracy of the test data but also can simulate the complex friction conditions of the combined action of the sliding of the cookware and impurity particles in actual use, providing more realistic experimental conditions for the evaluation of the coating performance.

[0013] Further preferably, an overflow groove is also provided at the inner ring surface of the convex retaining ring corresponding to the position of the test coating panel. The cross-section of the overflow groove is "V"-shaped, and the bottom of the overflow groove is connected to the storage tank through a plurality of return pipelines. A sieve is provided at the top opening of the return pipeline.

[0014] Through the above technical solution, the present application realizes the dynamic recovery and purification treatment of the magnetorheological abrasive during the test, effectively preventing the retention of coating debris in the test area and ensuring the accuracy of subsequent test data. At the same time, the recycling of the abrasive reduces the frequency of medium replenishment, improving the test efficiency and resource utilization rate.

[0015] Furthermore, the test bench further includes a wear detection unit. Both the wear detection unit and the test execution mechanism are connected to a switching mechanism located in the detection cavity. After the test of the test execution mechanism is completed, the switching mechanism switches to the wear detection unit to detect the surface of the test coating panel.

[0016] Through the above technical solution, seamless connection between the coating wear resistance test and the wear detection is achieved. While improving the test efficiency, the continuity and accuracy of the wear data are ensured. The surface state of the coating is immediately detected in situ after the test is completed, avoiding interference from external factors on the detection results and providing reliable dynamic data support for the evaluation of the coating performance.

[0017] Even further, the switching mechanism includes a switching turntable vertically rotatably arranged inside the detection cavity. The lower part of the outer surface of the switching turntable is used to install the test execution mechanism, and the upper part of the switching turntable is used to install the wear detection unit.

[0018] Through the above technical solution, the wear resistance test and the wear detection process are automatically connected. The test actuator and the detection unit complete the station switching through the same turntable, which effectively reduces the interruption time of the test process and improves the overall efficiency of the coating performance test. The detection unit can directly collect data after the turntable rotates into place, avoiding the positioning deviation problem caused by manual operation in the traditional solution and ensuring the consistency of the test results.

[0019] Specifically, the wear detection unit includes an infrared visual detection module and a data processing module. The infrared visual detection module is connected to the switching turntable through a rotating platform. The rotating platform is used to drive the infrared visual detection module to collect visual data on the surface wear condition and coating thickness of the tested coating panel after the test. The data processing module is electrically connected to the infrared visual detection module, and is used to receive visual data and calculate and process to generate detection results and output them to an external terminal.

[0020] In the above scheme, by integrating the rotating detection structure and the automatic data processing function, an integrated test-detection process is realized, the positioning error caused by sample transfer is eliminated, and the interference of oil residue in visible light detection on the data is avoided by infrared spectral feature extraction, and the automatic quantitative detection of the wear morphology and thickness change of the coating panel is realized, and the problems of low efficiency of manual observation and large subjective judgment deviation are further solved.

[0021] As a further preferred embodiment, a heating chamber is provided inside the loading platform at a position corresponding to the coating panel to be tested, and a heater is provided inside the heating chamber via a displacement adjustment platform; The displacement adjustment platform includes a displacement slide and a first screw rod located at the bottom of the displacement slide and having an end extending to the outside of the loading platform, the first screw rod is rotatably connected to the inside of the heating chamber, and the first screw rod is sleeved on the outside with a first nut sliding seat connected to the displacement slide, and a rack is also installed at the bottom of the heating chamber parallel to the position of the first screw rod; A through slot perpendicular to the length direction of the first screw rod is provided inside the displacement slide plate, and a second screw rod is rotatably provided inside the through slot, and one end of the second screw rod close to the rack extends to the outside of the through slot and is connected to a gear meshing with the rack, and a second nut sliding seat which slides with the through slot is sleeved on the outer surface of the second screw rod, and the second nut sliding seat extends to the outside of the through slot and is connected to the heater.

[0022] Through the above technical solution, the present application can accurately control the temperature field distribution of the test area, and thus realize the dynamic simulation of the instantaneous temperature change at different positions of the induction cooker panel during the movement of the cooking utensil. At the same time, based on the specific mechanism of the upper displacement adjustment table, the movement trajectory of the heater can be dynamically adjusted to match the rotation of the friction disc, so as to effectively reproduce the performance degradation process of the coating under the high-temperature friction composite working condition, thereby accurately evaluating the change law of the wear resistance of the coating material under the action of thermal stress and providing reliable data support for optimizing the coating process.

[0023] Specifically, a power supply unit is further provided at the bottom of the base, and the power supply unit is used to supply power to the test bench in the detection box.

[0024] Through the above technical solution, it can accurately match the power requirements of different modules such as the friction disc drive, electromagnetic coil, heater and wear detection unit through the power supply unit, ensure the power supply stability during the coordinated operation of each system in the test process, thereby improving the data accuracy and repeatability of the coating wear test, and further ensuring the normal operation of the test work of the test device.

[0025] As can be seen from the above, a test device for the functional coating of the induction cooker microcrystalline glass provided by the present application can simulate the actual friction working condition through the synergistic action of the friction disc and the magnetorheological abrasive, dynamically adjust the abrasive distribution by combining the electromagnetic adsorption force, and integrate the heating and automatic detection modules at the same time, which can effectively solve the problems of single working condition, insufficient abrasive management and low detection efficiency of the traditional test device, and has the advantages of high test accuracy and real test simulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of the present application, and do not limit the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention, aiming to show the working state of the friction disc; Figure 2 It is a schematic diagram of the overall structure of the present invention, aiming to show the working state of the wear detection unit; Figure 3 It is a schematic diagram of the internal structure of the friction disc of the present invention, aiming to show the state of the balls between the connecting disc and the friction disc; Figure 4 It is a schematic diagram of the internal structure of the friction disc of the present invention, aiming to show the state of the electromagnetic coil at the bottom of the connecting disc; Figure 5 It is a schematic diagram of the bottom structure of the friction disc of the present invention, aiming to show the state of the bottom groove thereof; Figure 6 For the present invention Figure 1 The partial enlarged structure schematic diagram at A is used to show the state of the convex retaining ring; Figure 7 For the present invention Figure 1 is a schematic diagram of a partial enlarged structure at position B, aiming to show the state of the displacement adjustment platform in the heating cavity; Figure 8 is a top view structural diagram of the displacement adjustment platform of the present invention, aiming to show the specific structure of the displacement slide plate; Figure 9 is a top view structural diagram of the displacement adjustment platform of the present invention, aiming to show the state after the displacement slide plate is adjusted.

[0027] The meanings represented by the above reference numerals are as follows: 1, base; 2, detection box; 21, detection cavity; 311, friction disc; 3111, groove; 312, connecting disc; 313, electromagnetic coil; 314, ball; 321, loading table; 322, convex retaining ring; 3221, overflow groove; 323, nozzle; 324, pressure pipeline; 325, return pipeline; 326, storage tank; 41, lifting push rod; 42, motor; 51, heating cavity; 511, first lead screw; 512, first nut sliding seat; 513, displacement slide plate; 514, through groove; 515, second lead screw; 516, second nut sliding seat; 517, heater; 518, gear; 519, rack; 6, power supply unit; 7, switching turntable. Detailed implementation manners

[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention. It should be noted that the present invention has been in the actual research and development and use stage.

[0029] In the prior art, the surface coating of the induction cooker's microcrystalline glass panel needs to withstand multiple complex working conditions such as the friction of cookware, high temperature, and oil and grease corrosion. The traditional test device uses a friction disc of a fixed material to directly contact the coating for wear resistance testing, which has the defects of single friction working condition and lack of wear medium management. The fixed friction disc cannot simulate the friction coefficient differences under different cookware materials or impurity-containing scenarios, and the test results deviate greatly from the actual working conditions. At the same time, the coating debris generated during the test cannot be removed in time or new abrasives cannot be replenished, resulting in distorted test data and poor repeatability.

[0030] To solve the above problems, aiming at the pain points that traditional devices cannot dynamically adjust the friction environment and manage wear media, the inventors focused on constructing a variable friction coefficient simulation system and an abrasive circulation control mechanism. First, analyze the friction coefficient changes caused by the differences in cookware materials during actual use, and propose to utilize the characteristics of magnetorheological materials to achieve controllable adjustment of abrasive hardness and arrangement density. Secondly, aiming at the problem of debris accumulation, study the synergistic effect of the directional flow of abrasives and the enclosed test area to form a medium management system for dynamic replenishment and discharge. Finally, through the cooperation of electromagnetic drive and mechanical structure, accurate simulation of three-dimensional composite friction effects is achieved. Specifically, it is recorded in the following embodiments. Embodiment

[0031] Please refer to Figures 1 to 6 As shown in the figure, this embodiment discloses a test device for the functional coating of the induction cooker's microcrystalline glass, including a base 1, a detection box 2 located on the base 1, a detection cavity 21 provided inside the detection box 2, a test bench provided inside the detection cavity 21, and the test bench includes a test execution mechanism and a test placement seat; The test execution mechanism includes a friction disc 311, an electromagnetic coil 313 is provided inside the friction disc 311, and a spiral groove 3111 is opened at the bottom of the friction disc 311; the test placement seat includes a loading table 321 for clamping the panel to be tested at the corresponding position in the middle of the top corresponding to the friction disc 311, a convex retaining ring 322 is provided around the top of the loading table 321, and a nozzle 323 corresponding to the panel to be tested is opened at the upper part of the convex retaining ring 322. The nozzle 323 is connected to a storage tank 326 provided at the bottom of the loading table 321 through a pressurized pipeline 324, and magnetorheological abrasive is stored in the storage tank 326; When performing the wear resistance test of the coating, the friction disc 311 moves downward close to the loading table 321 and rotates, the nozzle 323 sprays magnetorheological abrasive onto the surface of the loading table 321, and after the friction disc 311 approaches the loading table 321, it is blocked by the convex retaining ring 322 to form an annular gap for accommodating the magnetorheological abrasive. The electromagnetic coil 313 is energized to generate an electromagnetic adsorption force, so as to drive the magnetorheological abrasive to perform the wear resistance test on the panel to be tested through the rotation of the friction disc 311.

[0032] It should be understood that in the above embodiments, a coating testing device including a base 1, a detection box 2 and an internal test bench is disclosed. Among them, the test bench is composed of a test execution mechanism and a test placement seat. The test execution mechanism includes a friction disc 311 with an electromagnetic coil 313 and helically distributed grooves 3111. The test placement seat includes a loading table 321 and a raised retaining ring 322. The top of the loading table 321 clamps the panel to be tested. The raised retaining ring 322 is provided with nozzles 323 and is connected to a storage tank 326 through a pipeline. Magnetorheological abrasive is stored in the tank. During the test, the friction disc 311 presses down and rotates to form an annular gap with the raised retaining ring 322, and the nozzles 323 spray magnetorheological abrasive into the annular gap. At the same time, the electromagnetic coil 313 is energized to adsorb the abrasive to form a controllable friction environment; Furthermore, the helically distributed grooves 3111 at the bottom of the friction disc 311 refer to a continuous spiral channel structure machined on the bottom surface of the disc body, which can be specifically realized by numerical control milling. This structure forms a directional fluid channel during rotation to guide the abrasive to move along a spiral path. The electromagnetic coil 313 refers to a conductive winding embedded inside the friction disc 311, which can be specifically wound into an annular coil with copper wire. After being energized, it generates an axial magnetic field. For the raised retaining ring 322, it refers to an annular raised structure surrounding the edge of the loading table 321, which can be specifically processed and formed with stainless steel material, and the height can be set to 5 - 8 millimeters. The nozzles 323 refer to multiple through holes distributed on the upper part of the retaining ring, which can be specifically equidistantly arranged holes with a diameter of 0.5 - 1 millimeter, and the abrasive is sprayed through a pressure pump. The annular gap refers to the closed annular space formed between the friction disc 311 and the raised retaining ring 322 after the friction disc 311 presses down, and the gap width can be controlled within the range of 0.2 - 0.5 millimeters; During specific implementation, during the test process, the friction disc 311 is driven to rotate, and the centrifugal force generated by the helically distributed grooves 3111 makes the magnetorheological abrasive move accordingly. At the same time, the magnetic field generated after the electromagnetic coil 313 is energized makes the abrasive particles arrange along the magnetic induction line direction, and the compaction density of the abrasive particles can be changed by adjusting the current intensity, so as to simulate the friction effects of cookware with different hardnesses. As the nozzles 323 continuously spray new abrasive into the annular gap, the old abrasive is discharged along the edge under the guidance of the helically distributed grooves 3111, thus forming a dynamic cycle. The raised retaining ring 322 not only restricts the scattering of the abrasive, but also collects the excess abrasive through the overflow groove 3221 and returns it to the storage tank 326. Through the above structure, the abrasive is kept evenly distributed in the test area, and at the same time, the real-time removal of debris and the replenishment of new medium are realized; Compared with the prior art, in this solution, the friction coefficient can be continuously adjusted by electromagnetic regulation of the abrasive state, and the friction characteristics of different materials such as iron pans and stainless steel pans can be accurately reproduced (that is, by adjusting the electromagnetic field intensity to change the state of the magnetorheological abrasive and adjusting its friction coefficient to simulate the friction of different material pans), meeting the parameter requirements of different test standards. Moreover, the problem of debris accumulation in traditional tests is solved by the friction disc 311 and the helically distributed grooves 3111, effectively eliminating debris interference, ensuring a stable test environment, and improving the data accuracy of test results.

[0033] Specifically, based on the above embodiments, it is further proposed that Figure 1 and Figure 2 as shown, a lift drive device is provided at the top of the friction disc 311. The lift drive device includes a vertically arranged lift push rod 41. The lift end of the lift push rod 41 is installed with a motor 42 through a connecting flange, and the output end of the motor 42 is connected to the top of the friction disc 311.

[0034] In this embodiment, the lift push rod 41 drives the friction disc 311 to vertically move to a preset height, making the friction disc 311 contact the panel to be tested and apply a specific pressure. And the output end of the motor 42 is directly connected to the friction disc 311, hoping to independently control the displacement of the lift push rod 41 and the rotation speed of the motor 42 to respectively adjust the contact pressure and rotation speed of the friction disc 311. For example, in specific implementation, when it is necessary to simulate the friction condition of a light pot, the lift push rod 41 adjusts the downward pressure of the friction disc 311 to a smaller value; when it is necessary to simulate a heavy pressure friction scenario, the downward pressure is increased to increase the contact pressure, thereby realizing the wear resistance test of the coating under different pressure conditions. At the same time, it can be understood that since the vertical movement path of the friction disc 311 is axially rigidly guided and constrained by the lift push rod 41, lateral offset causing uneven pressure distribution can be further avoided, thus ensuring more reliable test data.

[0035] Based on the above embodiments, further, as Figure 3 and Figure 4 shown, the electromagnetic coil 313 is installed at the bottom of the connecting disc 312 located inside the friction disc 311. The outside of the connecting disc 312 is rotationally matched with the inside of the friction disc 311 through the embedded balls 314.

[0036] Specifically, after the electromagnetic coil 313 is fixed to the bottom of the connecting plate 312, a rotating pair is formed between the connecting plate 312 and the friction plate 311 through the balls 314. When the friction plate 311 rotates driven by an external force, the balls 314 allow the connecting plate 312 to rotate relative to the friction plate 311 at a speed lower than that of the friction plate 311. Thus, after the connecting plate 312 rotates, it drives the magnetorheological abrasive to rotate accordingly. For the magnetorheological abrasive, it is not only subjected to the centrifugal force and shear force generated by the rotation of the friction plate 311, but also superimposed with the dynamic magnetic field change effect caused by the rotation of the connecting plate 312. In this way, a complex and variable friction force distribution is formed on the coating surface by the magnetorheological abrasive. On the one hand, the centrifugal force generated by the high-speed rotation of the friction plate 311 makes the magnetorheological abrasive closely adhere to the coating surface, enhancing the friction effect. On the other hand, the magnetic field change caused by the low-speed rotation of the connecting plate 312 makes the magnetorheological abrasive particles produce tiny rubbing and plowing actions on the coating surface, simulating a wear condition closer to the actual use scenario (such as the shaking of cookware and the rolling of particulate impurities). Therefore, compared with the traditional single friction plate 311 test, it can more realistically simulate the complex friction environment that the microcrystalline glass coating suffers during the use of the induction cooker.

[0037] Based on the above embodiments, it should be supplemented that Figure 5 as shown, the opening of the groove 3111 extends to the edge position of the friction plate 311, and the spiral direction of the groove 3111 is opposite to the rotation direction of the friction plate 311.

[0038] Specifically, when the friction plate 311 rotates, the magnetorheological abrasive moves outward along the spiral groove driven by the centrifugal force. Since the spiral direction is opposite to the rotation direction, the abrasive particles generate a relative movement opposite to the rotation direction of the disc body in the groove, resulting in an increase in the frictional resistance between the particles and the groove wall, prolonging the residence time of the abrasive in the friction area. At the same time, the reverse spiral structure forms an eddy current effect when the disc body rotates, accelerating the migration of wear debris along the groove to the edge and discharging it through the opening to the external collection device, preventing the debris from redepositing in the test area. Furthermore, through the synergistic effect of the two, the abrasive is continuously and evenly distributed during the test, and at the same time, the dynamic cleaning of the debris is realized. In this way, through the through-type groove and the reverse spiral layout, the present solution improves the even distribution of the abrasive while strengthening the debris discharge efficiency, thereby improving the test use effect of the present device.

[0039] Furthermore, in the above embodiments, please refer to Figure 6 , an overflow groove 3221 is opened at the inner ring surface of the convex retaining ring 322 corresponding to the position of the test coating panel. The cross-section of the overflow groove 3221 is V-shaped, and the bottom of the overflow groove 3221 is connected to the storage tank 326 through a plurality of return pipes 325. A screen is provided at the top opening of the return pipe 325.

[0040] Based on the overflow tank 3221 provided in the above embodiments, it can block and collect some of the magnetorheological abrasives that splash out from between the friction disk 311 and the loading table 321 after the wear test, and use the return pipe 325 at the bottom to return the collected magnetorheological abrasives to the storage tank 326 for recycling. During the recycling process, the screen can filter the return mixture, and the coating debris is intercepted above the screen, while the magnetorheological abrasives after screening and filtering can enter the storage tank 326 for recycling, thus realizing the recycling of abrasives and greatly improving the utilization rate of abrasives.

[0041] Based on the above embodiments, in Figure 1 and Figure 2 as shown, the present application further proposes that the test bench further includes a wear detection unit. Both the wear detection unit and the test execution mechanism are connected to the switching mechanism located in the detection chamber 21. After the test execution mechanism finishes the test, it is switched to the wear detection unit through the switching mechanism to detect the surface of the to-be-tested coated panel.

[0042] Specifically, after the test execution mechanism completes the wear resistance test, the switching turntable 7 rotates under the drive, so that the wear detection unit moves above the to-be-tested coated panel to perform multi-directional scanning on the coating surface and collect image data of the worn area. The data processing module compares the collected data with the initial coating parameters to generate quantitative analysis results of the wear depth, area, and remaining thickness of the coating, and displays them in real time through the terminal. That is, compared with the prior art, the traditional test device needs to transfer the sample from the friction test station to an independent detection device. During the transfer process, the coating surface may be secondarily contaminated or mechanically contacted and interfered, resulting in distorted detection data. In addition, the step-by-step operation prolongs the test cycle and cannot realize the dynamic monitoring of the wear process. However, in this solution, by integrating the switching mechanism and the detection unit, it is immediately switched to the detection state after the test to ensure the immediacy and integrity of data collection and eliminate the error risk brought by sample transfer.

[0043] Through the above technical solution, the present application realizes the seamless connection between the coating wear resistance test and the wear detection. While improving the test efficiency, it ensures the continuity and accuracy of the wear data. The surface state of the coating is immediately detected in situ after the test is completed, avoiding interference from external factors on the detection results and providing reliable dynamic data support for the coating performance evaluation.

[0044] Based on the above embodiments, it should be added that specifically as Figure 1 and Figure 2 shown, the switching mechanism includes a switching turntable 7 vertically rotatably arranged inside the detection chamber 21. The lower part of the outer surface of the switching turntable 7 is used to install the test execution mechanism, and the upper part of the switching turntable 7 is used to install the wear detection unit.

[0045] In specific implementation, after the wear resistance test of the coating is completed, the switching turntable 7 can be driven by the motor 42 to rotate in the vertical plane. At this time, the test execution mechanism originally located at the lower part rotates with the turntable to the non-working position above, while the wear detection unit at the upper part rotates synchronously to the lower test station, so as to realize the seamless connection of the test and detection processes through the rotation action of the mechanical turntable.

[0046] That is to say, through the above technical solution, the present application realizes the automatic connection of the wear resistance test and the wear detection process. The test execution mechanism and the detection unit complete the station switching through the same turntable, effectively reducing the interruption time of the test process and improving the overall efficiency of the coating performance test. After the detection unit rotates in place with the turntable, data can be directly collected, avoiding the positioning deviation problem caused by manual operation in the traditional solution and ensuring the consistency of the detection results.

[0047] Based on the above embodiments, further, the wear detection unit includes an infrared vision detection module and a data processing module. Among them, the infrared vision detection module is connected to the switching turntable 7 through a rotating platform. The rotating platform drives the infrared vision detection module to collect visual data on the surface wear condition and coating thickness of the test panel to be measured after the test. The data processing module is electrically connected to the infrared vision detection module, receives the visual data, calculates and processes it to generate a detection result and outputs it to an external terminal.

[0048] For example, the infrared vision detection module refers to a detection device composed of an infrared light source and an image sensor. Specifically, it can be realized by combining a near-infrared spectrometer and a high-resolution CCD camera. Data is collected by using the reflection difference of the infrared spectrum of coatings with different wear degrees. The rotating platform refers to a mechanical structure that can rotate around a vertical axis. Specifically, it can be realized by a slewing bearing driven by a servo motor. The detection module is controlled to move along an annular trajectory to cover the area to be measured by controlling the rotation angle. The data processing module refers to a computing unit integrating image processing algorithms. Specifically, it can be realized by an embedded system equipped with an edge computing chip. The two-dimensional image data is converted into thickness distribution information through a three-dimensional topography reconstruction algorithm; after the wear resistance test of the coating is completed, the rotating platform drives the infrared vision detection module to rotate 360 degrees around the test panel to be measured. The infrared light source irradiates the coating surface at a specific wavelength, and the reflected light signal is captured by the CCD camera to generate a multi-angle image sequence. The data processing module performs feature matching and point cloud stitching on the image sequence to generate surface three-dimensional topography data. By comparing with the original coating thickness reference value, the depth and area ratio of the worn area are calculated, and the detection result is output to the terminal device in a numerical form, including wear grade evaluation and thickness change curve.

[0049] That is to say, by integrating the rotation detection structure and the automatic data processing function, this solution realizes the integrated process of testing and detection, eliminates the positioning error caused by sample transfer, and at the same time avoids the interference of oil residue in visible light detection to data through infrared spectrum feature extraction, realizes the automatic quantitative detection of the wear morphology and thickness change of the coated panel, and further solves the problems of low efficiency of manual observation and large subjective judgment deviation.

[0050] Based on the further preferably implementable ways of the above embodiments, as Figure 7 , Figure 8 and Figure 9 shown, a heating cavity 51 is provided inside the loading table 321 corresponding to the position of the coated panel to be measured, and a heater 517 is provided inside the heating cavity 51 through a displacement adjustment platform; The displacement adjustment platform includes a displacement slide plate 513 and a first lead screw 511 located at the bottom of the displacement slide plate 513 and extending to the outside of the loading table 321 at the end. The first lead screw 511 is rotatably connected inside the heating cavity 51, and a first nut sliding seat 512 connected to the displacement slide plate 513 is sleeved outside the first lead screw 511. A rack 519 is also installed at the bottom of the heating cavity 51 parallel to the position of the first lead screw 511; A through groove 514 perpendicular to the length direction of the first lead screw 511 is provided inside the displacement slide plate 513. A second lead screw 515 is rotatably provided inside the through groove 514. One end of the second lead screw 515 close to the rack 519 extends outside the through groove 514 and is connected with a gear 518 meshing with the rack 519. A second nut sliding seat 516 slidably matched with the through groove 514 is sleeved on the outer surface of the second lead screw 515. The second nut sliding seat 516 extends outside the through groove 514 and is connected with the heater 517.

[0051] It can be understood that in the above embodiments, the heating cavity 51 refers to a closed space provided inside the loading table 321. Specifically, a cavity structure can be made of a high-temperature resistant alloy material, which is used to carry the heater 517 and form a high-temperature test environment. Its function is to construct a controlled thermal field for the coating to be measured and simulate the actual working temperature of the induction cooker panel; When the wear resistance test of the coating under high-temperature environment is required, the heater 517 can be adjusted in position through the displacement adjustment platform, that is, rotate the first lead screw 511. After its rotation, it drives the first nut sliding seat 512 to move along the transverse direction of the loading table 321, thereby driving the overall translation of the displacement slide plate 513. At this time, when the displacement slide plate 513 moves longitudinally, the second lead screw 515 in its through groove 514 can rotate synchronously through the meshing of the gear 518 and the rack 519. Then, after the second lead screw 515 rotates in the through groove 514, it drives the second nut sliding seat 516 to move along the length direction of the through groove 514 (that is, along the longitudinal direction of the loading table 321), thereby enabling the heater 517 to form a composite motion trajectory in both the horizontal transverse and horizontal longitudinal directions. In this way, through the linkage mechanism, the heater 517 can cover any area on the surface of the panel to be tested, and when the wear resistance test is realized, the heat source can be randomly and dynamically distributed; and during the test process, the heat energy generated by the heater 517 is conducted through the loading table 321 to the coated panel to be tested, and combined with the mechanical wear applied by the friction disc 311, a composite working condition of high temperature and friction coupling is formed.

[0052] Compared with the prior art, traditional test devices usually adopt fixed heating elements and cannot dynamically adjust the thermal field distribution, resulting in a significant temperature gradient in the test area and making it difficult to truly simulate the actual working condition of uneven heat reception of the induction cooker panel; therefore, through the combination of the first lead screw 511 transmission system and the gear 518 linkage structure, the present technology constructs a two-dimensional adjustable heat source system, which can actively adjust the position of the heater 517 during the test process and eliminate the temperature distribution distortion caused by the fixed heat source; at the same time, the two-axis linkage mechanism can achieve planar motion with only a single drive source, significantly reducing the system complexity compared with the traditional multi-motor 42 drive scheme.

[0053] Through the above technical solutions, the present application can accurately control the temperature field distribution in the test area, and then realize the dynamic simulation of the instantaneous temperature changes at different positions of the induction cooker panel during the movement of the cooking utensil. At the same time, based on the specific mechanism of the upper displacement adjustment table, the movement trajectory of the heater 517 can be dynamically adjusted to match the rotation of the friction disc 311, thereby effectively reproducing the performance degradation process of the coating under the high-temperature friction composite working condition, and accurately evaluating the change law of the wear resistance performance of the coating material under the action of thermal stress, providing reliable data support for optimizing the coating process.

[0054] Based on the above embodiments, it should be noted that Figure 1As shown in the figure, a power supply unit 6 is also provided at the bottom of the base 1, and the power supply unit 6 is used to supply power to the test bench in the detection box 2. In this embodiment, the power supply unit 6 refers to a modular power supply system integrated at the bottom of the base 1 and providing power for the test bench in the detection box 2. Specifically, a power supply module with multiple independent outputs can be used to supply power to the device to enable the normal operation of the test device. That is, through the power supply unit 6, the power requirements of different modules such as the friction disc 311 drive, the electromagnetic coil 313, the heater 517, and the wear detection unit can be accurately matched to ensure the power supply stability during the coordinated operation of each system in the test process, thereby improving the data accuracy and repeatability of the coating wear resistance test.

[0055] The above specific implementation manners further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0056] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are all schematic diagrams, which only serve to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read. They are not used to limit the implementable conditions of the present invention, so they do not have technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0057] At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the implementable range of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the implementable scope of the present invention.

Claims

1. An induction cooker ceramic glass functional coating testing device, comprising a base (1), a detection box (2) located on the base (1), and a detection cavity (21) provided inside the detection box (2), characterized in that, Inside the detection chamber (21), there is a test bench, and the test bench includes a test execution mechanism and a test placement seat; The test execution mechanism includes a friction disc (311). Inside the friction disc (311), there is an electromagnetic coil (313). At the bottom of the friction disc (311), there are grooves (3111) distributed in a spiral shape. The test placement seat includes a loading table (321) for clamping the panel with the coating to be tested at the position corresponding to the friction disc (311) in the middle of the top. Around the top of the loading table (321), there is a raised retaining ring (322). At the upper part of the raised retaining ring (322), there is a nozzle (323) corresponding to the panel with the coating to be tested. The nozzle (323) is connected to a storage tank (326) provided at the bottom of the loading table (321) through a pressurized pipeline (324). Inside the storage tank (326), there is magnetorheological abrasive stored; When performing the wear resistance test of the coating, the friction disc (311) moves downward close to the loading table (321) and rotates. The nozzle (323) sprays magnetorheological abrasive onto the surface of the loading table (321). After the friction disc (311) approaches the loading table (321), it is blocked by the raised retaining ring (322) to form an annular gap for accommodating the magnetorheological abrasive. The electromagnetic coil (313) is energized to generate an electromagnetic adsorption force, so as to drive the magnetorheological abrasive to perform the wear resistance test on the panel with the coating to be tested through the rotation of the friction disc (311).

2. The testing device for the functional coating of the induction cooker ceramic glass according to claim 1, characterized in that At the top of the friction disc (311), there is also a lift drive device. The lift drive device includes a vertically arranged lift push rod (41). The lift end of the lift push rod (41) is installed with a motor (42) through a connecting flange, and the output end of the motor (42) is connected to the top of the friction disc (311).

3. The testing device for the functional coating of the induction cooker ceramic glass according to claim 1, characterized in that, The electromagnetic coil (313) is installed at the bottom of a connecting disc (312) located inside the friction disc (311). The outside of the connecting disc (312) is rotationally matched with the inside of the friction disc (311) through embedded balls (314).

4. The testing device for the functional coating of the induction cooker ceramic glass according to claim 1, wherein The opening of the groove (3111) extends to the edge position of the friction disc (311), and the spiral direction of the groove (3111) is opposite to the rotation direction of the friction disc (311).

5. A testing device for the functional coating of the ceramic glass of an induction cooker according to claim 1, characterized in that, At the inner ring surface of the raised retaining ring (322) corresponding to the position of the panel with the coating to be tested, an overflow groove (3221) is also provided. The cross-section of the overflow groove (3221) is in a "V" shape, and the bottom of the overflow groove (3221) is connected to the storage tank (326) through a plurality of return pipelines (325). At the top opening of the return pipeline (325), there is a screen.

6. The testing device for the functional coating of the induction cooker ceramic glass according to claim 2, characterized in that, The test bench also includes a wear detection unit. Both the wear detection unit and the test execution mechanism are connected to a switching mechanism located inside the detection chamber (21). After the test of the test execution mechanism is completed, it is switched to the wear detection unit through the switching mechanism to detect the surface of the panel with the coating to be tested.

7. The testing device for the functional coating of the induction cooker ceramic glass according to claim 6, characterized in that, The switching mechanism includes a switching turntable (7) vertically rotatably arranged inside the detection chamber (21). The lower part of the outer surface of the switching turntable (7) is used to install the test execution mechanism, and the upper part of the switching turntable (7) is used to install the wear detection unit.

8. An electromagnetic cooker ceramic glass functional coating testing device according to claim 7, characterized in that, The wear detection unit includes an infrared vision detection module and a data processing module. The infrared vision detection module is connected to the switching turntable (7) through a rotating platform. The rotating platform is used to drive the infrared vision detection module to collect visual data on the surface wear condition and coating thickness of the to-be-tested coated panel after the test. The data processing module is electrically connected to the infrared vision detection module, and is used to receive the visual data, calculate and process it to generate a detection result and output it to an external terminal.

9. The testing device for the functional coating of the induction cooker ceramic glass according to claim 1, characterized in that, A heating chamber (51) is opened at the position corresponding to the to-be-tested coated panel inside the loading table (321). A heater (517) is arranged inside the heating chamber (51) through a displacement adjustment platform. The displacement adjustment platform includes a displacement slide plate (513) and a first lead screw (511) located at the bottom of the displacement slide plate (513) and with its end extending outside the loading table (321). The first lead screw (511) is rotatably connected inside the heating chamber (51), and a first nut sliding seat (512) connected to the displacement slide plate (513) is sleeved outside the first lead screw (511). A rack (519) is also installed at the bottom of the heating chamber (51) parallel to the first lead screw (511). A through groove (514) perpendicular to the length direction of the first lead screw (511) is opened inside the displacement slide plate (513). A second lead screw (515) is rotatably arranged inside the through groove (514). One end of the second lead screw (515) close to the rack (519) extends outside the through groove (514) and is connected with a gear (518) meshing with the rack (519). A second nut sliding seat (516) slidably matched with the through groove (514) is sleeved outside the second lead screw (515). The second nut sliding seat (516) extends outside the through groove (514) and is connected with the heater (517).

10. A testing device for the functional coating of the ceramic glass of an induction cooker according to claim 9, characterized in that, A power supply unit (6) is also arranged at the bottom of the base (1). The power supply unit (6) is used to supply power to the test bench inside the detection box (2).

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