Frequency converter multi-surface label detection device

Abstract

The invention discloses a frequency converter multi-surface label detection device, and belongs to the technical field of frequency converter label detection, the frequency converter multi-surface label detection device comprises a detection table structure and a fastening structure, and the detection table structure comprises a table body part and an image acquisition part; the fastening structure comprises a telescopic unit and a horizontal U-shaped support. In the process of driving an upper pressing assembly to move downwards through a power unit and pressing, clamping and positioning a frequency converter, the movable upper pressing assembly drives a driven assembly to move upwards through a gear unit, so that a piston unit moving upwards along with the driven assembly sucks the interior of a suction cup unit located in a lower clamping table part to be in a negative pressure state through a pipeline piece; the movable piston unit injects insulating cooling liquid into the telescopic unit through the flow dividing hose, so that the bottom of the frequency converter is clamped and positioned, meanwhile, the telescopic unit can drive an image collecting part connected with the free end of the telescopic unit to the position over a to-be-detected label in the frequency converter, and automatic detection of the multi-face label of the frequency converter is achieved.

Description

Technical Field

[0001] This application relates to the field of inverter label detection technology, and more specifically, to an inverter multi-sided label detection device. Background Technology

[0002] A frequency converter mainly consists of a rectification unit (AC to DC), a filter, an inverter (DC to AC), a braking unit, a drive unit, a detection unit, and a microprocessor unit. The frequency converter adjusts the output voltage and frequency by switching its internal IGBTs, providing the required power voltage according to the actual needs of the motor, thereby achieving energy saving and speed regulation. In addition, the frequency converter has many protection functions, such as overcurrent, overvoltage, and overload protection.

[0003] In the field of industrial automation and intelligent manufacturing, frequency converters are core components, and the barcode labels affixed to their surfaces carry crucial information such as product traceability, parameter identification, and quality control. With the proliferation of counterfeit and substandard products, frequency converter labels made from new materials now offer a higher level of anti-counterfeiting, such as thermochromic inks (which display hidden information as the temperature changes) and photochromic inks (which change color at different angles), increasing the difficulty of counterfeiting.

[0004] Currently, the industry generally uses manual visual inspection to test inverter products with barcode labels on multiple sides. This inspection process often requires repeated manual clamping and positioning. However, labels made of new materials (such as PET anti-counterfeiting labels and flexible electronic tags) often involve micron-level structures or dynamic anti-counterfeiting features, which traditional manual inspection or low-precision equipment cannot meet. Furthermore, the frequent manual clamping and positioning operations required for testing barcode labels on multiple sides of the inverter not only increase the likelihood of false detections and result in a high error rate, but also significantly reduce the testing efficiency of the inverter products.

[0005] In view of this, we propose a multi-sided label detection device for frequency converters. Summary of the Invention

[0006] Technical problem to be solved: The purpose of this application is to provide a multi-sided label detection device for frequency converters, which solves the technical problems mentioned in the background art above.

[0007] Technical solution: The technical solution of this application provides a multi-sided label detection device for frequency converters, including a detection table structure and fastening structures disposed on its left and right sides. The detection table structure includes a table body and an image acquisition unit that slides above the table body.

[0008] The fastening structure includes a telescopic unit and a horizontal U-shaped bracket connected to the side wall of the platform. The horizontal U-shaped bracket has a lower clamping platform that slides horizontally inside. A gear unit and a power unit are connected to the lower clamping platform. An upper pressing component is connected to the power unit. A passive component is also slidably connected to the lower clamping platform. The gear unit is located between the upper pressing component and the passive component. Both the upper pressing component and the passive component include tooth grooves that mesh with the gear unit.

[0009] The lower clamping platform is provided with an upper cavity and a lower cavity arranged in an upward and downward direction, respectively. The upper cavity is provided with a suction cup unit, and the lower cavity is provided with a piston unit connected to the passive component. The lower cavity is also filled with insulating coolant. The piston unit includes an insulating plug that slides in the lower cavity to seal.

[0010] The suction cup unit includes a tubing component that communicates with the space located below the insulating plug in the lower cavity;

[0011] The fixed end of the telescopic unit is connected to the platform body, and the free end is connected to the image acquisition unit. The telescopic unit is also filled with insulating coolant. The telescopic unit includes two shunt hoses filled with insulating coolant. One end of each shunt hose is connected to the inner cavity of the telescopic unit, and the other end of each shunt hose is connected to the inner cavity of the two lower cavities respectively.

[0012] As the upper pressure assembly gradually moves downward under the drive of the power unit, it drives the passive assembly to move upward through the gear unit. This causes the piston unit, which moves upward along with the passive assembly, to draw the suction cup unit into a negative pressure state through the pipeline components. At the same time, the moving piston unit also injects insulating coolant into the telescopic unit through the diversion hose.

[0013] As an optional solution to the technical solution of this application, the suction cup unit includes a rubber suction cup connected to the opening at the top of the upper cavity;

[0014] An insulating synchronous cylinder seat is fixedly connected to the bottom end of the rubber suction cup. The bottom end of the insulating synchronous cylinder seat passes through the bottom wall of the upper cavity and extends into the lower cavity, where it is connected to an insulating base. A reset spring is also fitted outside the insulating synchronous cylinder seat, connecting the top wall of the lower cavity and the insulating base.

[0015] As an optional solution to the technical solution in this application, the pipeline component is a flow guiding hose.

[0016] As an optional solution to the technical solution of this application, the lower clamping platform also includes a clamping platform body that slides horizontally inside the horizontal U-shaped bracket, and the top opening end of the rubber suction cup is flush with the top of the clamping platform body. The upper cavity and the lower cavity are both set on the clamping platform body.

[0017] One end of the conduit extends through the side wall of the clamping platform into the upper cavity and is fixedly connected to the side wall of the insulating synchronous cylinder seat. The other end extends through the clamping platform into the lower cavity and is connected to the space below the insulating plug in the lower cavity.

[0018] As an optional solution to the technical solution of this application, the piston unit also includes a bottom cover connected to the bottom of the clamping body and sealingly covering the opening at the bottom end of the lower cavity.

[0019] A connecting rod is slidably inserted into the bottom cover, and the top end of the connecting rod extends into the lower cavity and is connected to the bottom of the insulating plug.

[0020] As an optional solution to the technical solution of this application, the gear unit includes a gear frame connected to the main body of the clamping platform in the lower clamping platform portion, and a transmission gear is rotatably connected inside the gear frame.

[0021] The pressure assembly includes a Z-shaped pressure frame, a pressure sensor is connected to one end of the Z-shaped pressure frame, an abutment plate is connected to the end of the pressure sensor away from the Z-shaped pressure frame, and an anti-slip pad is connected to the bottom surface of the abutment plate;

[0022] The toothed grooves in the pressure assembly are located on the side wall of the Z-shaped pressure frame.

[0023] As an optional solution to the technical solution in this application, the power unit includes a servo electric cylinder and an electric cylinder fixing frame connected to the main body of the clamping platform in the lower clamping platform, and the fixed end of the servo electric cylinder is connected to the electric cylinder fixing frame.

[0024] The end of the Z-shaped pressure frame furthest from the pressure sensor is connected to the free end of the servo electric cylinder;

[0025] The passive component includes an L-shaped traction frame that is slidably connected to the side wall of the clamping platform body, and the toothed groove in the passive component is provided on the side wall of the L-shaped traction frame.

[0026] The bottom end of the connecting rod extends from the bottom surface of the bottom cover and connects to the end of the L-shaped traction frame.

[0027] As an optional solution to the technical solution of this application, a negative pressure sensing unit is also provided on the lower clamping platform. The negative pressure sensing unit includes an alarm and a switch touch spring and a switch terminal arranged opposite to each other.

[0028] The switch contact spring is connected to the insulating base;

[0029] The switch terminals are connected to the insulating plug;

[0030] The alarm is connected to the outer wall of the main body of the lower clamping platform.

[0031] When the switch contact spring contacts the switch terminal, the alarm is triggered.

[0032] As an optional solution to the technical solution in this application, the platform includes a testing table, and a stand is connected to the testing table;

[0033] The top of the support frame is equipped with a straight groove;

[0034] The image acquisition unit includes a driven guide block that is slidably connected in a straight groove, and a CCD camera is connected to the bottom of the driven guide block.

[0035] As an optional solution to the technical solution in this application, the telescopic unit includes a hydraulic bottom cylinder seat, and a traction plug is slidably inserted into the end opening of the hydraulic bottom cylinder seat.

[0036] A manifold is fixedly connected to the end of the hydraulic base away from its opening;

[0037] The telescopic unit is set in the straight groove, and the end of the hydraulic bottom cylinder seat away from its opening is fixedly connected to the straight groove. The end of the pulling plug away from the hydraulic bottom cylinder seat is connected to the driven guide block.

[0038] The end of the connecting pipe away from the hydraulic base penetrates the side wall of the upright frame;

[0039] One end of each of the two diversion hoses is fixedly connected to the side wall of the end of the connecting pipe away from the hydraulic base, and the other end of each of the two diversion hoses is connected to the inner cavity of the two lower cavities respectively.

[0040] Beneficial Effects: One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. When the inverter product is placed on the testing platform of the platform body, and then the power unit drives the upper pressure component to move down and clamp the inverter, the movable upper pressure component drives the passive component to move up through the gear unit. This causes the piston unit, which moves up with the passive component, to draw the suction cup unit located in the lower clamping platform into a negative pressure state through the pipeline components. At the same time, the movable piston unit also injects insulating coolant into the telescopic unit through the diversion hose. This allows the bottom of the inverter to be clamped and positioned, while the telescopic unit drives the image acquisition unit connected to its free end to be directly above the label to be tested in the inverter. The image acquisition unit, combined with multispectral imaging technology, can capture dynamic changes in real time, ensuring anti-counterfeiting effect and realizing automated detection of multi-sided labels of the inverter. This significantly improves detection efficiency and accuracy.

[0041] 2. As the piston unit, following the upward movement of the passive component, draws the suction cup unit into a negative pressure state through the piping, the volume of the rubber suction cup in the suction cup unit gradually shrinks, driving the switch touch spring in the sensing unit to move upward. When the fastening structure completes the clamping and fixing of the inverter and the piston unit stops moving, the switch terminal fixed on the insulating plug in the piston unit separates from the switch touch spring. At this time, the alarm in the sensing unit is in the off state. During the label inspection process, the inspector can quickly determine that the suction cup unit is in a negative pressure adsorption state at the bottom of the inverter by using the alarm in the sensing unit, and can then proceed with subsequent inspection operations normally.

[0042] 3. During the inspection of multi-sided labels on frequency converters, if the rubber suction cup develops aging cracks that are difficult to detect with the naked eye, external air can enter the rubber suction cup through these cracks. This causes the negative pressure inside the rubber suction cup to gradually disappear, resulting in the gradual loss of the negative suction force between the suction cup unit and the base. Furthermore, during the process of the rubber suction cup returning to its original shape, when the switch touch spring in the drive sensing unit contacts the switch terminal located below it, an alarm is triggered. This helps inspection personnel quickly locate the fault point and promptly replace or repair the rubber suction cup in the suction cup unit. This ensures the effective clamping of the fastening structure on the frequency converter during label inspection, preventing slippage of the frequency converter due to external force or accidental contact during label inspection. This would prevent the CCD camera in the image acquisition unit from accurately capturing label information, leading to misjudgments or missed detections.

[0043] 4. Since the lower clamping platform in the fastening structure can slide horizontally inside the horizontal U-shaped bracket, when inspecting the quality of the labels affixed to the surface of the frequency converter, the inspector can flexibly adjust the spacing between the two fastening structures located on the left and right sides of the inspection platform according to the size of the frequency converter. This makes it convenient to clamp and fix frequency converters of different specifications and sizes when inspecting the labels.

[0044] 5. After completing the inspection of the labels on one side of the inverter, the length of the servo cylinder in the control power unit is shortened, causing the power unit to drive the upper pressure component to move upward. At this time, the moving upper pressure component drives the passive component to move downward through the gear unit, causing the piston unit, which follows the passive component downward, to continuously inject gas into the suction cup unit through the pipeline components, thus disabling the negative pressure state inside the suction cup component. During the movement of the suction cup component, the insulating coolant in the telescopic unit is also simultaneously drawn out through the diversion hose, and the image acquisition unit, which was originally located directly above the label to be tested, is driven away from the label and gradually reset to its initial position. This optimizes the space layout above the inspection platform, so that after completing the inspection of the labels on one side of the inverter, there is more space directly above the inverter, making it easier for the inspection personnel to flip the inverter to inspect the labels on other sides. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of this application.

[0046] Figure 2 For this application Figure 1 A magnified view of part A in the diagram.

[0047] Figure 3 For this application Figure 1 A magnified view of part B in the diagram.

[0048] Figure 4 This is a side view of the overall structure of this application.

[0049] Figure 5 For this application Figure 4 A magnified view of part C in the diagram.

[0050] Figure 6 This is a schematic diagram of the fastening structure in this application.

[0051] Figure 7 This is a partial sectional view of this application.

[0052] Figure 8 This is a cross-sectional view of the fastening structure in this application.

[0053] Figure 9 For this application Figure 8 A magnified view of part D in the middle.

[0054] Figure 10 For this application Figure 8 A magnified view of part E in the middle.

[0055] Explanation of the labels in the diagram:

[0056] 101. Testing table; 102. Stand; 103. Driven guide block; 104. CCD camera;

[0057] 301. Horizontal U-shaped bracket; 302. Electric cylinder fixing bracket; 303. Z-shaped pressure frame; 304. Servo electric cylinder; 305. Abutment plate; 306. Clamping platform body; 307. Alarm; 308. Connecting rod; 309. L-shaped traction frame; 310. Transmission gear; 311. Guide hose; 312. Insulating plug; 313. Pressure sensor; 314. Return spring; 315. Rubber suction cup; 316. Switch terminal; 318. Switch touch spring; 319. Insulating synchronous cylinder seat; 320. Hydraulic base cylinder seat; 323. Diverting hose; 324. Insulating coolant; 325. Pulling plug; 326. Merging pipe. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] Reference Figures 1 to 8 This application provides a multi-sided label detection device for frequency converters, including a detection table structure and fastening structures disposed on its left and right sides. The detection table structure includes a table body and an image acquisition unit that slides above the table body.

[0062] The fastening structure includes a telescopic unit and a horizontal U-shaped bracket 301 connected to the side wall of the platform. The horizontal U-shaped bracket 301 has a lower clamping platform that slides horizontally inside. A gear unit and a power unit are connected to the lower clamping platform. An upper pressing component is connected to the power unit. A passive component is also slidably connected to the lower clamping platform. The gear unit is located between the upper pressing component and the passive component. Both the upper pressing component and the passive component include tooth grooves that mesh with the gear unit.

[0063] The lower clamping platform is provided with an upper cavity and a lower cavity arranged in an upward and downward direction, respectively. The upper cavity is provided with a suction cup unit, and the lower cavity is provided with a piston unit connected to the passive component. The lower cavity is also filled with insulating coolant 324. The piston unit includes an insulating plug 312 that is sealed and slides in the lower cavity.

[0064] The suction cup unit includes a conduit 311 that communicates with the space in the lower cavity located below the insulating plug 312;

[0065] The fixed end of the telescopic unit is connected to the platform body, and the free end is connected to the image acquisition unit. The telescopic unit is also filled with insulating coolant 324. The telescopic unit includes two shunt hoses 323 filled with insulating coolant 324. One end of each shunt hose 323 is connected to the inner cavity of the telescopic unit, and the other end of each shunt hose 323 is connected to the inner cavity of the two lower cavities respectively.

[0066] As the upper pressure assembly gradually moves downward under the drive of the power unit, the passive assembly is driven upward by the gear unit. This causes the piston unit, which moves upward along with the passive assembly, to draw the suction cup unit into a negative pressure state through the pipeline component 311. At the same time, the moving piston unit also injects insulating coolant 324 into the telescopic unit through the diversion hose 323.

[0067] Reference Figures 1 to 5 This application provides a multi-sided label detection device for frequency converters. The platform includes a detection platform 101, and a stand 102 is connected to the detection platform 101.

[0068] The top of the upright 102 is provided with a straight groove;

[0069] The image acquisition unit includes a driven guide block 103 that is slidably connected in a straight groove. A CCD camera 104 is connected to the bottom of the driven guide block 103. During the detection process, the CCD camera 104 in the image acquisition unit can capture dynamic changes in real time by combining multispectral imaging technology to ensure the anti-counterfeiting effect.

[0070] The inverter product is placed on the testing platform 101 of the main body. Then, the power unit drives the upper pressure component to move down and clamp the inverter. During the process, the movable upper pressure component drives the passive component to move up through the gear unit. This causes the piston unit, which moves up with the passive component, to draw the suction cup unit in the lower clamping platform into a negative pressure state through the pipeline component 311. At the same time, the movable piston unit also injects insulating coolant 324 into the telescopic unit through the diversion hose 323. This allows the bottom of the inverter to be clamped and positioned, while the telescopic unit drives the image acquisition unit connected to its free end to be directly above the label to be tested in the inverter. This achieves automated detection of multi-sided labels on the inverter, significantly improving detection efficiency and accuracy.

[0071] Reference Figure 2 , Figure 4 , Figure 8 , Figure 10 This application provides a multi-sided label detection device for frequency converters. The suction cup unit includes a rubber suction cup 315 connected to the opening at the top of the upper cavity. The rubber suction cup 315 is preferably an accordion-type vacuum suction cup.

[0072] An insulating synchronous cylinder seat 319 is fixedly connected to the bottom end of the rubber suction cup 315. The bottom end of the insulating synchronous cylinder seat 319 passes through the bottom wall of the upper cavity and extends into the lower cavity, where it is connected to an insulating base. A reset spring 314 is also sleeved on the outside of the insulating synchronous cylinder seat 319, which is connected between the top wall of the lower cavity and the insulating base.

[0073] Reference Figure 2 and Figure 3 This application provides a multi-sided label detection device for frequency converters, wherein the pipeline component 311 is a flow guide hose.

[0074] Reference Figure 1 , Figure 2 , Figure 4 , Figures 6 to 8 This application provides a multi-sided label detection device for frequency converters. The lower clamping platform also includes a clamping platform body 306 that slides horizontally inside a horizontal U-shaped bracket 301. The top opening end of the rubber suction cup 315 is flush with the top end of the clamping platform body 306. The upper cavity and the lower cavity are both disposed on the clamping platform body 306.

[0075] One end of the conduit 311 passes through the side wall of the clamping body 306 and extends into the upper cavity, where it is fixedly connected to the side wall of the insulating synchronous cylinder seat 319. The other end passes through the clamping body 306 and extends into the lower cavity, where it is connected to the space below the insulating plug 312 in the lower cavity.

[0076] Since the lower clamping platform in the fastening structure can slide horizontally inside the horizontal U-shaped bracket 301, when inspecting the quality of the label affixed to the surface of the frequency converter, the inspector can flexibly adjust the distance between the two fastening structures located on the left and right sides of the inspection platform 101 according to the size of the frequency converter. This makes it convenient to clamp and fix frequency converters of different specifications and sizes when inspecting the label.

[0077] Reference Figure 1 and Figure 5 This application provides a multi-sided label detection device for frequency converters. The piston unit also includes a bottom cover connected to the bottom of the clamping body 306 and sealingly covering the bottom opening of the lower cavity.

[0078] A connecting rod 308 is slidably inserted into the bottom cover, and the top end of the connecting rod 308 extends into the lower cavity and is connected to the bottom of the insulating plug 312.

[0079] Reference Figures 6 to 9 This application provides a multi-sided label detection device for frequency converters. The gear unit includes a gear frame connected to the main body 306 of the clamping platform in the lower clamping platform portion, and a transmission gear 310 is rotatably connected inside the gear frame.

[0080] The pressure assembly includes a Z-shaped pressure frame 303, a pressure sensor 313 is connected to one end of the Z-shaped pressure frame 303, an abutment plate 305 is connected to the end of the pressure sensor 313 away from the Z-shaped pressure frame 303, and an anti-slip pad is connected to the bottom surface of the abutment plate 305.

[0081] The toothed grooves in the pressure assembly are located on the side wall of the Z-type pressure frame 303.

[0082] During the clamping and positioning of the inverter by the upper pressure assembly, the pressure sensor 313 can monitor the lower pressure in real time, and the pressure sensor 313 transmits the detection signal to the external main controller in real time. The main controller is a common existing technology such as a computer that plays a control role, which will not be described in detail here. The operator can view the pressure applied to the base by the upper pressure assembly through the screen of the external main controller.

[0083] Reference Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 This application provides a multi-sided label detection device for frequency converters. The lower clamping platform is also provided with a negative pressure sensing unit. The negative pressure sensing unit includes an alarm 307 and a switch touch spring 318 and a switch terminal 316 arranged opposite to each other.

[0084] The switch touch spring 318 is connected to the insulating base;

[0085] The switch terminal 316 is connected to the insulating plug 312;

[0086] The alarm 307 is connected to the outer wall of the main body 306 of the lower clamping platform.

[0087] When the switch touch spring 318 contacts the switch terminal 316, the alarm 307 is triggered to turn on.

[0088] As the piston unit, following the upward movement of the passive component, draws the suction cup unit into a negative pressure state through the pipe component 311, the volume of the rubber suction cup 315 in the suction cup unit gradually shrinks and drives the switch touch spring 318 in the sensing unit to move upward. When the fastening structure completes the clamping and fixing of the inverter and the piston unit stops moving, the switch terminal 316 fixed on the insulating plug in the piston unit separates from the switch touch spring 318. At this time, the alarm 307 in the sensing unit is in the off state. During the label inspection process, the inspector can quickly determine that the suction cup unit is in a negative pressure adsorption state at the bottom of the inverter by using the alarm 307 in the sensing unit, which is in the off state, and can carry out subsequent inspection operations normally.

[0089] During the inspection of multi-sided labels on frequency converters, if the rubber suction cup 315 develops aging cracks that are difficult to detect with the naked eye due to aging, external air can enter the rubber suction cup 315 through these cracks. This causes the negative pressure inside the rubber suction cup 315 to gradually disappear, resulting in the gradual loss of the negative suction force of the suction cup unit on the base. Furthermore, during the process of the rubber suction cup 315 returning to its original shape, when the switch touch spring 318 in the drive sensing unit contacts the switch terminal 316 located below it, the alarm 307 is triggered. This helps the inspection personnel quickly locate the fault point and promptly replace or repair the rubber suction cup 315 in the suction cup unit. This ensures the effective clamping of the fastening structure on the frequency converter during label inspection, preventing slippage of the frequency converter due to external force or accidental contact during label inspection. This would prevent the CCD camera 104 in the image acquisition unit from accurately capturing label information, thus avoiding misjudgment or missed detection.

[0090] Reference Figures 6 to 9 This application provides a multi-sided label detection device for frequency converters. The power unit includes a servo electric cylinder 304 and an electric cylinder fixing frame 302 connected to the clamping body 306 in the lower clamping part. The fixed end of the servo electric cylinder 304 is connected to the electric cylinder fixing frame 302.

[0091] The end of the Z-type pressure frame 303 away from the pressure sensor 313 is connected to the free end of the servo electric cylinder 304;

[0092] The passive component includes an L-shaped traction frame 309 that is slidably connected to the side wall of the clamping body 306, and the toothed groove in the passive component is provided on the side wall of the L-shaped traction frame 309.

[0093] The bottom end of the connecting rod 308 extends from the bottom surface of the bottom cover and connects to the end of the L-shaped traction frame 309.

[0094] Reference Figure 1 , Figures 3 to 5 This application provides a multi-sided label detection device for frequency converters. The telescopic unit includes a hydraulic base 320, and a traction plug 325 is slidably inserted into the end opening of the hydraulic base 320.

[0095] A manifold 326 is fixedly connected to the end of the hydraulic base 320 away from its opening;

[0096] The telescopic unit is set in the straight groove, and the end of the hydraulic bottom cylinder seat 320 away from its opening is fixedly connected to the straight groove. The end of the pulling plug 325 away from the hydraulic bottom cylinder seat 320 is connected to the driven guide block 103.

[0097] The end of the connecting pipe 326 that is away from the hydraulic base 320 passes through the side wall of the upright 102;

[0098] One end of each of the two diversion hoses 323 is fixedly connected to the side wall of the connecting pipe 326 away from the hydraulic base 320, and the other end of each of the two diversion hoses 323 is connected to the inner cavity of the two lower cavities respectively.

[0099] After completing the inspection of the labels on one side of the inverter, the length of the servo cylinder 304 in the control power unit is shortened, causing the power unit to drive the upper pressure component to move upward. At this time, the moving upper pressure component drives the passive component to move downward through the gear unit, causing the piston unit, which follows the passive component downward, to continuously inject gas into the suction cup unit through the pipeline 311, thus disabling the negative pressure state inside the suction cup component. This makes it easier for the inspection personnel to flip the inverter over, facilitating the inspection of labels pasted on other sides of the inverter. During the movement of the suction cup component, the insulating coolant 324 in the telescopic unit is simultaneously drawn out through the diversion hose 323, driving the image acquisition unit, which was originally located directly above the label to be tested, away from the label and gradually returning to its initial position. This optimizes the spatial layout above the inspection platform 101, resulting in more space above the inverter after the inspection of the labels on one side of the inverter is completed, making it easier for the inspection personnel to flip the inverter to inspect labels on other sides.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A multi-sided label detection device for frequency converters, characterized in that: It includes a detection stage structure and fastening structures disposed on its left and right sides. The detection stage structure includes a stage body and an image acquisition unit that slides above the stage body. The fastening structure includes a telescopic unit and a horizontal U-shaped bracket (301) connected to the side wall of the platform. The horizontal U-shaped bracket (301) has a lower clamping platform that slides horizontally inside. A gear unit and a power unit are connected to the lower clamping platform. An upper pressing component is connected to the power unit. A passive component is also slidably connected to the lower clamping platform. The gear unit is located between the upper pressing component and the passive component. Both the upper pressing component and the passive component include tooth grooves that mesh with the gear unit. The lower clamping platform is provided with an upper cavity and a lower cavity arranged in an upward and downward direction, respectively. The upper cavity is provided with a suction cup unit, and the lower cavity is provided with a piston unit connected to the passive component. The lower cavity is also filled with insulating coolant (324). The piston unit includes an insulating plug (312) that is sealed and slides in the lower cavity. The suction cup unit includes a conduit (311) that communicates with the space located below the insulating plug (312) in the lower cavity. The fixed end of the telescopic unit is connected to the platform body, and the free end is connected to the image acquisition unit. The telescopic unit is also filled with insulating coolant (324). The telescopic unit includes two shunt hoses (323) filled with insulating coolant (324). One end of each shunt hose (323) is connected to the inner cavity of the telescopic unit, and the other end of each shunt hose (323) is connected to the inner cavity of the two lower cavities respectively. As the upper pressure assembly gradually moves downward under the drive of the power unit, the passive assembly is driven upward by the gear unit. This causes the piston unit, which moves upward along with the passive assembly, to draw the suction cup unit into a negative pressure state through the pipeline component (311). At the same time, the moving piston unit also injects insulating coolant (324) into the telescopic unit through the diversion hose (323).

2. The inverter multi-sided label detection device according to claim 1, characterized in that: The suction cup unit includes a rubber suction cup (315) connected to the top opening of the upper cavity. The bottom end of the rubber suction cup (315) is fixedly connected to the insulating synchronous cylinder seat (319), and the bottom end of the insulating synchronous cylinder seat (319) passes through the bottom wall of the upper cavity and extends into the lower cavity and is connected to the insulating base. The insulating synchronous cylinder seat (319) is also fitted with a reset spring (314) that connects the top wall of the lower cavity and the insulating base.

3. The inverter multi-sided label detection device according to claim 2, characterized in that: The pipeline component (311) is a flow guiding hose.

4. The inverter multi-sided label detection device according to claim 3, characterized in that: The lower clamping platform also includes a clamping platform body (306) that slides horizontally inside the horizontal U-shaped bracket (301), and the top opening end of the rubber suction cup (315) is flush with the top end of the clamping platform body (306). The upper cavity and the lower cavity are both set on the clamping platform body (306). One end of the conduit (311) passes through the side wall of the clamping body (306) and extends into the upper cavity, and is fixedly connected to the side wall of the insulating synchronous cylinder seat (319). The other end passes through the clamping body (306) and extends into the lower cavity, and is connected to the space in the lower cavity located below the insulating plug (312).

5. The inverter multi-sided label detection device according to claim 1, characterized in that: The piston unit also includes a bottom cover connected to the bottom of the clamping body (306) and sealingly covering the bottom opening of the lower cavity; A connecting rod (308) is slidably inserted into the bottom cover, and the top end of the connecting rod (308) extends into the lower cavity and is connected to the bottom of the insulating plug (312).

6. The inverter multi-sided label detection device according to claim 5, characterized in that: The gear unit includes a gear frame connected to the main body (306) of the lower clamping platform, and a transmission gear (310) is rotatably connected inside the gear frame. The pressure assembly includes a Z-shaped pressure frame (303), a pressure sensor (313) is connected to one end of the Z-shaped pressure frame (303), an abutment plate (305) is connected to the end of the pressure sensor (313) away from the Z-shaped pressure frame (303), and an anti-slip pad is connected to the bottom surface of the abutment plate (305). The toothed grooves in the pressure assembly are located on the side wall of the Z-type pressure frame (303).

7. The inverter multi-sided label detection device according to claim 6, characterized in that: The power unit includes a servo electric cylinder (304) and an electric cylinder fixing frame (302) connected to the clamp body (306) in the lower clamping section, and the fixed end of the servo electric cylinder (304) is connected to the electric cylinder fixing frame (302); The Z-shaped pressure frame (303) is connected to the free end of the servo electric cylinder (304) at the end furthest from the pressure sensor (313). The passive component includes an L-shaped traction frame (309) that is slidably connected to the side wall of the clamping body (306), and the toothed groove in the passive component is provided on the side wall of the L-shaped traction frame (309); The bottom end of the connecting rod (308) extends from the bottom surface of the bottom cover and is connected to the end of the L-shaped traction frame (309).

8. The inverter multi-sided label detection device according to claim 4, characterized in that: The lower clamping platform is also provided with a negative pressure sensing unit, which includes an alarm (307) and a switch touch spring (318) and a switch terminal (316) arranged opposite to each other. The switch touch spring (318) is connected to the insulating base; The switch terminal (316) is connected to the insulating plug (312); The alarm (307) is connected to the outer wall of the main body (306) of the lower clamping platform; When the switch touch spring (318) contacts the switch terminal (316), the alarm (307) is triggered to turn on.

9. The inverter multi-sided label detection device according to claim 1, characterized in that: The platform includes a testing table (101), and a stand (102) is connected to the testing table (101). The top of the upright (102) is provided with a straight groove; The image acquisition unit includes a driven guide block (103) slidably connected in a straight groove, and a CCD camera (104) is connected to the bottom of the driven guide block (103).

10. The inverter multi-sided label detection device according to claim 9, characterized in that: The telescopic unit includes a hydraulic base (320), and a traction plug (325) is slidably inserted into the end opening of the hydraulic base (320). The hydraulic base (320) is fixedly connected to a manifold (326) at the end away from its opening. The telescopic unit is set in the straight groove, and the end of the hydraulic bottom cylinder seat (320) away from its opening is fixedly connected to the straight groove. The end of the pulling plug (325) away from the hydraulic bottom cylinder seat (320) is connected to the driven guide block (103). The end of the connecting pipe (326) away from the hydraulic base (320) passes through the side wall of the upright (102); One end of each of the two shunt hoses (323) is fixedly connected to the side wall of the manifold (326) away from the hydraulic base (320), and the other end of each of the two shunt hoses (323) is connected to the inner cavity of the two lower cavities respectively.

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