A decorative plate size automatic detection mechanism and detection method

Abstract

This invention provides an automatic size detection mechanism and method for decorative panels. The detection mechanism includes: a frame; a positioning component; a sensor measurement component, including a displacement sensor and a driving component. The driving component drives the displacement sensor to move between a measurement position and an avoidance position to measure the size of the corresponding position of the decorative panel product; and an energizing component, which is electrically connected to the decorative panel product and supplies power to it, causing the decorative panel on the product to automatically flip open and then automatically flip closed, thereby eliminating positional offsets of the decorative panel before measurement. By energizing the decorative panel product through the energizing component, the decorative panel automatically flips open and then automatically flips closed, achieving product position reset, eliminating positional offsets such as interlayer misalignment caused by the decorative panel during assembly and handling, avoiding measurement data distortion, and allowing simultaneous measurement of multiple points on the side and surface of the decorative panel product. All size detections are completed in one clamping, resulting in high detection efficiency.

Description

Technical Field

[0001] This manual relates to the field of decorative panel inspection technology, specifically to an automatic decorative panel size inspection mechanism and inspection method. Background Technology

[0002] Before leaving the factory, decorative panel products (such as automotive charging port cover assemblies) need to have their dimensions checked at multiple points on their sides and surfaces to determine whether the dimensions of each part meet the design requirements. Currently, the dimensional inspection of decorative panel products mostly relies on manual measurement using measuring tools such as calipers and plug gauges, which is labor-intensive, inefficient, and the measurement results are affected by the operator's technique and subjective judgment, making it difficult to guarantee accuracy and consistency.

[0003] Some automated inspection devices use displacement sensors in conjunction with cylinder drives to detect the dimensions of sheet metal. However, existing devices typically measure products in a fixed fixture state, failing to consider the positional shifts that occur during assembly and handling of the decorative panels. For decorative panels with flip-open structures, such as automotive charging port covers, operators inevitably touch the products during assembly, transfer, and manual handling. Excessive force can easily cause the decorative panels to shift, resulting in interlayer misalignment. Directly measuring the dimensions of products in this shifted state will distort the measurement data, failing to accurately reflect the actual processing quality and thus affecting the pass / fail determination results. Summary of the Invention

[0004] In view of this, embodiments of this specification provide an automatic detection mechanism and method for decorative panel dimensions, so as to eliminate the positional offset of the decorative panel product before measurement, and realize efficient automatic detection of multiple points on the side and surface of the decorative panel product, thereby improving detection accuracy and efficiency.

[0005] This specification provides the following technical solution in its embodiments: an automatic size detection mechanism for decorative panels, comprising: a frame; a positioning component for positioning the decorative panel product; a sensor measurement component disposed on the frame, including a displacement sensor and a driving component, the driving component being used to drive the displacement sensor to move between a measurement position and an avoidance position to measure the size of the corresponding position of the decorative panel product; and a power supply component disposed on the frame for electrically connecting to the decorative panel product and supplying power to the decorative panel product, causing the decorative panel on the decorative panel product to automatically flip open and then automatically flip closed, thereby eliminating the positional offset of the decorative panel before measurement.

[0006] Based on the above solution, by utilizing the structural characteristic of the decorative panel product that it can automatically flip open and close after being powered on, the decorative panel product is powered on through the power supply component before measurement, so that the decorative panel automatically flips open and then automatically flips closes. The position is reset by using the decorative panel's own hinges and limiters, thereby eliminating positional offsets such as interlayer misalignment caused by the decorative panel during assembly and transportation, and ensuring the authenticity and accuracy of subsequent dimensional measurement data.

[0007] Preferably, the power-conducting assembly includes a probe mounting block, a power-conducting probe, and a plug clip; the probe mounting block is disposed on the frame, the power-conducting probe is disposed on the probe mounting block, the front end of the power-conducting probe has telescopic elasticity, used to insert into the pinhole inside the plug on the decorative panel product and contact the plug to conduct electricity, and the plug clip is used to fix the plug after the power-conducting probe is inserted into the plug.

[0008] Based on the above scheme, the front end of the power probe has telescopic elasticity, which can adaptively compensate for assembly tolerances and protect the probe itself from rigid collision damage when inserted into the plug pin hole. The plug is fixed after the probe is inserted to ensure stable and reliable electrical connection during the power-on process.

[0009] Preferably, the plug latch includes a mounting bracket, an unlocking lever, and a lever spring. The mounting bracket is disposed on the probe mounting block, and the unlocking lever is rotatably mounted on the mounting bracket. The two ends of the lever spring are respectively connected to the mounting bracket and the unlocking lever. When the plug is inserted, it pushes the unlocking lever to rotate relative to the mounting bracket, thereby compressing the lever spring. When the plug descends to a designated position, the unlocking lever returns to its original position under the elastic force of the lever spring and presses against the top of the plug to achieve a locking effect.

[0010] Based on the above solution, the unlocking lever is automatically pushed and the lever spring is compressed during plug insertion. After the plug reaches the designated position, the unlocking lever automatically resets and locks the plug under the action of the spring force, realizing automatic locking of the plug. No additional power source is required. After power is turned off, the plug can be easily pulled out by manually pushing the unlocking lever. The locking and unlocking operation is simple and reliable.

[0011] Preferably, the power supply component powers the decorative panel product for 5 seconds, wherein the decorative panel flips open for 3 seconds and flips close for 2 seconds. The decorative panel product uses its own Hall sensor to determine whether the decorative panel has flipped and closed in place. After the power supply is completed, pushing the unlocking lever can pull out the plug.

[0012] Based on the above solution, by setting the power-on sequence of 3 seconds for opening and 2 seconds for closing, and by using the Hall sensor of the decorative panel itself to provide feedback on the flip-in and closed-in status, it is ensured that the decorative panel can complete the full flip-in and closing reset each time, avoiding incomplete flipping that leads to incomplete elimination of position offset. The overall power-on time is only 5 seconds, which takes into account both the position reset effect and the detection cycle.

[0013] Preferably, the sensor measurement component includes:

[0014] The side measurement sensor lifting assembly includes a lifting cylinder and a plurality of first displacement sensors connected to the lifting cylinder. The lifting cylinder is used to drive each of the first displacement sensors to rise and fall to the measurement position in order to measure the corresponding position dimension of the side of the decorative panel product.

[0015] A lateral measurement sensor lateral movement assembly includes a push cylinder and a plurality of second displacement sensors connected to the push cylinder, wherein the push cylinder is used to drive each of the second displacement sensors to move laterally to the measurement position;

[0016] The surface measurement sensor right lateral movement assembly includes a right rodless cylinder and a plurality of third displacement sensors connected to the right rodless cylinder. The right rodless cylinder is used to drive each of the third displacement sensors to move laterally to the measurement position.

[0017] The left transverse component of the surface measurement sensor includes a left rodless cylinder and a plurality of fourth displacement sensors connected to the left rodless cylinder. The left rodless cylinder is used to drive each of the fourth displacement sensors to transverse to the measurement position.

[0018] Each group of displacement sensors can move between a measurement position and an avoidance position to simultaneously measure the dimensions of multiple points on the side and surface of the decorative panel product.

[0019] Based on the above scheme, by coordinating four independently driven measurement components (lifting, lateral movement, right lateral movement, and left lateral movement), multiple points on the side and surface of the decorative panel product can be measured simultaneously. All points can be detected in one clamping, resulting in high detection efficiency. Each set of displacement sensors moves back and forth between the measurement position and the avoidance position, ensuring that the measurement is in place and the material is avoided during loading and unloading, thus preventing interference with the positioning and loading / unloading actions.

[0020] Preferably, the positioning component includes an upper contour positioning block and a lower contour positioning block, which are respectively matched with the upper and lower shapes of the decorative panel product for contour positioning and clamping of the decorative panel product. The lower contour positioning block is installed on the frame, and the upper contour positioning block is connected to the side measurement sensor lifting assembly and moves toward or away from the lower contour positioning block under the drive of the lifting cylinder.

[0021] Based on the above solution, the upper and lower contour positioning blocks are designed according to the contour of the upper and lower parts of the decorative panel product, forming a contour positioning clamp for surface contact with the product, with high positioning accuracy and no scratches on the product surface; the upper contour positioning block is linked with the side measuring sensor lifting assembly, and moves synchronously with the lifting assembly under the drive of the lifting cylinder, which not only completes the pressing and positioning of the product, but also eliminates the need for an additional drive source, with a compact structure and good motion coordination.

[0022] Preferably, the sensor measurement assembly further includes multiple manual positioning pins and multiple position proximity sensors, which correspond to the side measurement sensor lifting assembly, the side measurement sensor lateral movement assembly, the surface measurement sensor right lateral movement assembly, and the surface measurement sensor left lateral movement assembly, respectively. The multiple manual positioning pins are used to insert into the positioning pin sleeves on the moving blocks of the corresponding measurement assemblies during inspection to verify whether the positions of each displacement sensor and / or the upper contour positioning block after closure are in place according to the design theoretical positions. The multiple position proximity sensors are used to detect whether the moving blocks of the corresponding measurement assemblies are in place each time closure occurs.

[0023] Based on the above scheme, the positioning pins on the moving block are periodically inserted manually (such as during the start-up inspection) to verify whether each measuring component is in the theoretical design position after closure. If the positioning pin cannot be inserted into the pin sleeve, it indicates that there is a positional deviation in the mechanism, and it needs to be readjusted to avoid distortion of measurement data. At the same time, the proximity sensor detects the position status of each closure in real time. If it fails to reach the position, an alarm can be triggered immediately. The combination of the two forms a dual calibration mechanism that combines periodic manual calibration with real-time position detection to ensure the long-term stable operation of the equipment.

[0024] Preferably, the detection mechanism further includes a sensor calibration component, which includes a calibration block, a telescopic linear guide rail, an extended position proximity sensor, and a reset position proximity sensor. The calibration block is manufactured by conforming to the shape of the decorative panel product at a 1:1 scale and is detachably installed on the telescopic linear guide rail. The extended position proximity sensor and the reset position proximity sensor are used to detect the extended position and reset position states of the telescopic linear guide rail, respectively.

[0025] During calibration, the telescopic linear guide is pulled out and fixed, and each displacement sensor of the sensor measurement assembly simultaneously extends its measuring head and contacts the corresponding position of the calibration block, setting this position as the detection zero point.

[0026] Based on the above scheme, the calibration block is machined according to the 1:1 shape of the decorative panel product. During calibration, each displacement sensor extends and contacts the corresponding position of the calibration block and sets that position as the detection zero point. The calibration results are highly consistent with the actual measurement scenario, ensuring the accuracy of sensor measurements and the reliability of data in each production process. The calibration block can be detached and installed through a telescopic linear guide rail, which, together with the extension and reset positions of the proximity sensor, makes the daily zero-point calibration process simple and reliable.

[0027] Preferably, the detection mechanism further includes a control unit; the control unit is used to compare the measurement data of each displacement sensor with preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified.

[0028] Based on the above scheme, after the measurement is completed, the control unit automatically compares the measurement data of each point with the preset upper and lower limits of dimensional offset and determines whether it is qualified or not. The judgment standard is uniform and the result is objective. No manual intervention is required. The measurement data can also be automatically generated into a table, saved and uploaded to the upper management system to realize closed-loop management of the test data.

[0029] An automatic dimension detection method for decorative panels, applied to the automatic dimension detection mechanism for decorative panels described in any one of the above claims, comprising:

[0030] The decorative panel product is placed on the positioning component, and the positioning component is used to position the decorative panel product.

[0031] By energizing the decorative panel product with the power supply component, the decorative panel on the product can be automatically flipped open and then automatically flipped closed, so as to eliminate the positional displacement of the decorative panel during assembly and transportation.

[0032] The displacement sensor is driven by a drive component to move from the avoidance position to the measurement position to measure the size of the corresponding position of the decorative panel product. After the measurement is completed, the displacement sensor is driven to reset to the avoidance position.

[0033] The measured data is compared with the preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified, and a dimensional data table is generated.

[0034] Based on the above scheme, this method realizes full automation of positioning, power-on reset, multi-point measurement, automatic judgment and data generation. Before measurement, the product position offset is eliminated by powering on and off, ensuring the accuracy of measurement data and significantly improving detection efficiency.

[0035] Compared with the prior art, the beneficial effects that this application can achieve include at least the following:

[0036] By energizing the decorative panel product with the power supply component, the decorative panel automatically flips open and then automatically flips closed. The product's own hinges and limit switches are used to reset the position, eliminating positional offsets such as interlayer misalignment that occur during the assembly and handling of the decorative panel, avoiding distortion of measurement data. Multiple points on the side and surface of the decorative panel product can be measured simultaneously, and all dimensions can be inspected in one clamping, resulting in high inspection efficiency. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the testing agency provided in this application when it is opened;

[0039] Figure 2 This is a schematic diagram of the working structure of the testing organization provided in this application when it is closed.

[0040] Figure 3 This is a schematic diagram of the electrical components of the testing organization provided in this application;

[0041] Figure 4 This is a structural schematic diagram of the positioning component and the side measurement sensor lifting component of the testing agency provided in this application;

[0042] Figure 5 This is a schematic diagram of the lateral displacement assembly of the side measurement sensor of the testing organization provided in this application;

[0043] Figure 6 This is a schematic diagram of the right lateral displacement assembly of the surface measurement sensor provided in this application;

[0044] Figure 7 This is a schematic diagram of the structure of the left lateral displacement assembly of the surface measurement sensor of the testing organization provided in this application;

[0045] Figure 8 This is a schematic diagram of the sensor calibration assembly of the testing organization provided in this application;

[0046] Figure 9 This is a diagram showing the locations on the decorative panel that need to be measured and their corresponding numbers (G2 is not measured).

[0047] Figure 10 It is a data table chart output after the automatic measurement is completed.

[0048] In the diagram: 1. Frame; 2. Positioning assembly; 21. Upper contour positioning block; 22. Lower contour positioning block; 3. Power-on assembly; 31. Probe mounting block; 32. Power-on probe; 33. Plug clip; 331. Mounting bracket; 332. Unlock lever; 4. Side measurement sensor lifting assembly; 41. Lifting cylinder; 42. First displacement sensor; 5. Side measurement sensor lateral movement assembly; 51. Push cylinder; 52. Second displacement sensor; 6. Surface measurement sensor right lateral movement assembly; 61. Right rodless cylinder; 62. Third displacement sensor; 7. Surface measurement sensor left lateral movement assembly; 71. Left rodless cylinder; 72. Fourth displacement sensor; 8. Sensor calibration assembly; 81. Calibration block; 82. Telescopic linear guide; 83. Extended position proximity sensor; 84. Reset position proximity sensor; P. Manual positioning pin; Q. Position proximity sensor. Detailed Implementation

[0049] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0050] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0052] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0053] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0054] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0055] like Figure 1 and Figure 2 As shown, this embodiment provides an automatic detection mechanism for decorative panel dimensions, mainly including a frame 1, a positioning component 2, a sensor measurement component, and a power supply component 3. The frame 1 serves as the mounting base for the entire detection mechanism, supporting and fixing the other functional components.

[0056] Positioning component 2 is used to position the decorative panel product, ensuring its fixed position during measurement. The sensor measurement component includes a displacement sensor and a drive unit. The drive unit moves the displacement sensor between a measurement position and an avoidance position. In the measurement position, the displacement sensor measures the dimensions of the corresponding position on the decorative panel product. In the avoidance position, the displacement sensor retracts to avoid interference with the loading and unloading movements of the decorative panel product. The energizing component 3 is electrically connected to and supplies power to the decorative panel product, causing the decorative panel to automatically flip open and then automatically flip closed, thereby eliminating any positional offset of the decorative panel before measurement.

[0057] In this embodiment, the decorative panel product is an automotive charging port cover assembly. The charging port cover assembly includes a decorative panel with a flip-open structure, which opens and closes via a hinge driven by an internal motor. During assembly, transportation, and manual handling, operators inevitably touch the decorative panel. If excessive force is applied, the decorative panel can easily be pushed to cause interlayer misalignment or other positional shifts. If the dimensions of the product in a shifted state are directly measured, the measurement data will be distorted and cannot accurately reflect the actual processing quality of the product. This application utilizes the structural characteristic of the decorative panel product that it can automatically flip open and close when powered on. Before measurement, the decorative panel product is powered on via the power supply component 3, causing the decorative panel to automatically flip open and then automatically flip close. The position is reset by the decorative panel's own hinge and limiters, thereby eliminating interlayer misalignment and other positional shifts caused by the decorative panel during assembly and transportation, ensuring the accuracy of subsequent dimensional measurement data.

[0058] like Figure 3 As shown, the power-on assembly 3 includes a probe mounting block 31, a power-on probe 32, and a plug clip 33.

[0059] The probe mounting block 31 is mounted on the frame 1, and the energized probe 32 is mounted on the probe mounting block 31. The front end of the energized probe 32 has a telescopic elasticity, which is used to insert into the pin hole inside the plug on the decorative panel product and make contact with the plug to conduct electricity. The telescopic elastic structure at the front end of the energized probe 32 can adaptively compensate for assembly tolerances when inserted into the plug pin hole, while protecting the probe itself from rigid impact damage.

[0060] In a preferred embodiment, the normal operating spring force of the energized probe 32 is 2N and the working stroke is 4.3mm. These parameters ensure reliable electrical contact between the probe and the plug pinhole while avoiding excessive contact pressure that could damage the probe or plug.

[0061] The plug latch 33 is used to secure the plug after the power probe 32 is inserted into the plug, ensuring a stable and reliable electrical connection during power-on. Specifically, the plug latch 33 includes a mounting bracket 331, an unlocking lever 332, and a lever spring. The mounting bracket 331 is mounted on the probe mounting block 31, and the unlocking lever 332 is rotatably mounted on the mounting bracket 331. The two ends of the lever spring are connected to the mounting bracket 331 and the unlocking lever 332, respectively. The lever spring continuously applies a spring force to the unlocking lever 332, keeping the unlocking lever 332 in a locked position in its natural state.

[0062] During plug insertion, the plug pushes the unlock lever 332 to rotate relative to the mounting bracket 331, compressing the lever spring. When the plug descends to the designated position, the unlock lever 332 resets under the elastic force of the lever spring and holds the top of the plug in place, thus automatically locking the plug. After power is supplied, the unlock lever 332 can be manually pushed to release the plug from its lock, and then the plug can be pulled out. The locking and unlocking process requires no additional power source, making the operation simple and reliable.

[0063] The current path for powering the decorative panel product via the power-on component 3 is as follows: device power supply, power-on probe 32, product plug, internal motor of the product, and hinge drive mechanism. After power is applied, the current drives the internal motor of the product, and the motor drives the hinge to rotate and open the decorative panel.

[0064] In a preferred embodiment, the energizing component 3 powers the decorative panel product for 5 seconds, with 3 seconds for the panel to flip open and 2 seconds for flipping closed. The decorative panel product uses its own Hall sensor to determine whether it has flipped and closed completely. Upon receiving the Hall sensor's signal, the system confirms the completion of the flipping action. The entire energizing time is only 5 seconds, balancing position reset efficiency with detection cycle time. No additional stabilization time is needed after flipping, as the flipping and opening process itself constitutes the position reset process; dimensional measurements can be performed directly after the panel is fully closed.

[0065] like Figure 4 As shown, the positioning component 2 includes an upper contour positioning block 21 and a lower contour positioning block 22. The upper contour positioning block 21 and the lower contour positioning block 22 are respectively matched with the upper and lower shapes of the decorative panel product, and are used for contour positioning and clamping of the decorative panel product. The contour positioning blocks are processed according to the contour of the corresponding part of the decorative panel product, forming surface contact with the product, with high positioning accuracy and no scratches on the product surface.

[0066] In one specific embodiment, the upper contour positioning block 21 includes two positioning blocks, namely the upper contour positioning block 21A and the upper contour positioning block 21B; the lower contour positioning block 22 includes four positioning blocks, namely the lower contour positioning block 22A, the lower contour positioning block 22B, the lower contour positioning block 22C, and the lower contour positioning block 22D. These multiple contour positioning blocks are positioned and clamped at different positions on the upper and lower parts of the decorative panel product. The lower contour positioning block 22 is mounted on the frame 1. The upper contour positioning block 21 is connected to the side measurement sensor lifting assembly 4 in the sensor measurement assembly and moves towards or away from the lower contour positioning block 22 under the drive of the lifting cylinder 41, thereby pressing and positioning the decorative panel product during measurement and releasing it after measurement to allow the product to be picked up and put away.

[0067] The sensor measurement assembly includes a side measurement sensor lifting assembly 4, a side measurement sensor lateral movement assembly 5, a surface measurement sensor right lateral movement assembly 6, and a surface measurement sensor left lateral movement assembly 7.

[0068] The side measurement sensor lifting assembly 4 includes a lifting cylinder 41 and a plurality of first displacement sensors 42 connected to the lifting cylinder 41. The lifting cylinder 41 is used to drive the first displacement sensors 42 to rise and fall to the measurement position to measure the corresponding position dimension of the side of the decorative panel product. The side measurement sensor lifting assembly 4 also includes a moving plate and an inclined base plate. The moving plate is connected to the output end of the lifting cylinder 41, and at least one first displacement sensor 42 is mounted on the moving plate. The inclined base plate is used to adjust the installation angle of the sensor to adapt to the measurement surface direction of the side of the decorative panel product.

[0069] In one specific implementation, the first displacement sensor 42 is a contact-type GT displacement sensor (such as the Keys GT series pneumatic displacement sensor). It uses compressed air to drive the measuring head to extend and contact the surface being measured, and then resets itself elastically after the air supply is cut off. The side measurement sensor lifting assembly 4 is equipped with seven first displacement sensors 42, corresponding to positions G1, G3, G4, G5, G6, G7, and G8 on the side of the decorative panel product (position G2 does not require measurement). The first displacement sensors 42 (G1 and G3) are raised and lowered under the drive of the lifting cylinder 41, enabling simultaneous measurement of multiple points on the side of the decorative panel product. The upper contour positioning block 21 is mounted on the moving plate of the side measurement sensor lifting assembly 4 and moves synchronously with the lifting cylinder 41, completing the product's clamping and positioning without requiring an additional drive source. This results in a compact structure and good motion coordination.

[0070] like Figure 5 As shown, the lateral measurement sensor lateral movement assembly 5 includes a push cylinder 51 and a plurality of second displacement sensors 52 connected to the push cylinder 51. The push cylinder 51 is used to drive each second displacement sensor 52 to move laterally to the measurement position. The lateral measurement sensor lateral movement assembly 5 also includes a drive plate, the output end of the push cylinder 51 is connected to the drive plate, and the plurality of second displacement sensors 52 are mounted on the drive plate. The push cylinder 51 drives each second displacement sensor 52 to move between the test position and the avoidance position by pushing the drive plate.

[0071] In one specific embodiment, the side measurement sensor transverse component 5 is provided with three second displacement sensors 52, corresponding to the G9, G10 and G11 positions on the side of the decorative panel product, respectively. The second displacement sensors 52 also adopt contact-type GT displacement sensors, and the measuring head is extended by compressed air to perform the measurement.

[0072] like Figure 6 As shown, the right lateral movement assembly 6 of the surface measurement sensor includes a right-side rodless cylinder 61 and multiple third displacement sensors 62 connected to the right-side rodless cylinder 61. The right-side rodless cylinder 61 drives each third displacement sensor 62 to move laterally to the measurement position. The right lateral movement assembly 6 of the surface measurement sensor also includes a mounting plate. The right-side rodless cylinder 61 drives the mounting plate to move, and the multiple third displacement sensors 62 are mounted on the mounting plate. The advantage of using a rodless cylinder is its compact structure and small installation space, making it suitable for achieving long-stroke lateral movement of the sensor within a limited space.

[0073] In one specific embodiment, the right transverse component 6 of the surface measurement sensor is provided with six third displacement sensors 62, which correspond to the F1, F6, F7, F8, F9 and F10 positions on the surface of the decorative panel product, respectively.

[0074] like Figure 7As shown, the left lateral movement assembly 7 of the surface measurement sensor includes a left rodless cylinder 71 and a plurality of fourth displacement sensors 72 connected to the left rodless cylinder 71. The left rodless cylinder 71 is used to drive each fourth displacement sensor 72 to move laterally to the measurement position. The left lateral movement assembly 7 of the surface measurement sensor also includes a mounting plate. The left rodless cylinder 71 drives the mounting plate to move, and the plurality of fourth displacement sensors 72 are mounted on the mounting plate.

[0075] In one specific embodiment, the left transverse component 7 of the surface measurement sensor is provided with four fourth displacement sensors 72, which correspond to the F2, F3, F4 and F5 positions on the surface of the decorative panel product, respectively.

[0076] Through the coordinated operation of the four independently driven measurement components, this embodiment can simultaneously measure the dimensions of a total of twenty points on the side and surface of the decorative panel product. All points can be detected in one clamping, resulting in high detection efficiency. Each set of displacement sensors moves back and forth between the measurement position and the avoidance position, ensuring that the measurement is in place and the material is avoided during loading and unloading, thus preventing interference with the positioning and loading / unloading actions.

[0077] It should be noted that the number and arrangement of the displacement sensors can be adjusted according to the specific size detection requirements of the decorative panel products, and are not limited to the specific number described in this embodiment.

[0078] In this embodiment, the sensor measurement assembly further includes multiple manual positioning pins P and multiple position proximity sensors Q, which correspond to the side measurement sensor lifting assembly 4, the side measurement sensor lateral movement assembly 5, the surface measurement sensor right lateral movement assembly 6, and the surface measurement sensor left lateral movement assembly 7, respectively.

[0079] Multiple manual positioning pins P are inserted into the positioning pin sleeves on the corresponding measuring components during inspection to verify whether the positions of each displacement sensor and / or the upper contour positioning block 21 after closure are the theoretical design positions. Specifically, the positioning pins P are inserted into the positioning pin sleeves on the moving blocks to verify whether the positions of each displacement sensor and the upper contour positioning block 21 after closure are the theoretical absolute positions designed for them. If the positioning pins P cannot be inserted into the pin sleeves of the moving blocks, it indicates that there is a positional deviation in the mechanism, and the position needs to be readjusted to avoid distortion of measurement data. The manual positioning pins P do not need to be inserted and removed for calibration during every measurement; they are only checked for tightness during the initial inspection at the start of the shift, saving operation time.

[0080] Multiple proximity sensors Q are used to detect whether the moving block of the corresponding measuring component is in position during each closure. During each measurement, the proximity sensors Q detect whether the moving block is in position. If it is not in position, the proximity sensor Q will not detect a position signal, and the system can issue a preventative alarm in real time. The combination of periodic manual calibration of the manual positioning pin P and real-time position detection by the proximity sensors Q forms a dual calibration mechanism, effectively ensuring the long-term stable operation of the equipment.

[0081] like Figure 8 As shown, the testing mechanism also includes a sensor calibration assembly 8, which includes a calibration block 81, a telescopic linear guide rail 82, an extended position proximity sensor 83, and a reset position proximity sensor 84. The calibration block 81 is manufactured by conforming the shape of the decorative panel product to a 1:1 scale and is detachably mounted on the telescopic linear guide rail 82. The extended position proximity sensor 83 and the reset position proximity sensor 84 are used to detect the extended and reset positions of the telescopic linear guide rail 82, respectively.

[0082] During calibration, the telescopic linear guide 82 is manually pulled out and fixed, and then the calibration block 81 is installed on the telescopic linear guide 82. The measuring mechanism is activated, and each displacement sensor in the sensor measuring assembly simultaneously extends its measuring head under air power, contacting the corresponding position on the calibration block 81. The system sets this position as the detection zero point (i.e., this position is the standard zero point for each displacement sensor, and the actual dimensions of the decorative panel products measured subsequently are judged based on the fluctuation value above and below this zero point). After zeroing is completed, each displacement sensor is de-aired and resets itself elastically, simultaneously pushing cylinder 51, the right rodless cylinder 61, and the left rodless cylinder 71 to reset. The calibration block 81 is then manually disassembled and reset.

[0083] The calibration block 81 is machined according to the 1:1 shape of the decorative panel product, so that the calibration results are highly consistent with the actual measurement scenario, ensuring the accuracy of sensor measurements and the reliability of data in each production process. The calibration block 81 can be detached and installed through the telescopic linear guide rail 82, and works with the extended position proximity sensor 83 and the reset position proximity sensor 84 to make the daily zeroing process simple and reliable.

[0084] In this embodiment, the testing mechanism also includes a control unit (not shown in the figure). The control unit compares the measurement data of each displacement sensor with preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified. The control unit can be implemented using a PLC (Programmable Logic Controller) or an industrial computer. After the measurement is completed, the control unit automatically compares the measurement data of each point with the preset upper and lower limits of dimensional offset and determines whether it is qualified or not. If qualified, the printer automatically outputs a qualified label, which is manually affixed to the decorative panel product; if unqualified, the system prompts NG on the PC screen, and the manual person needs to remove the NG product and put it into the NG box. At the same time, the dimensions tested by all displacement sensors are automatically generated into a data table and saved to a designated location on the PC. The product data is also synchronously uploaded to the MES (Manufacturing Execution System) to realize closed-loop management of the testing data.

[0085] like Figure 9 The diagram shows the locations on the decorative panel that need to be measured and their corresponding numbers. Location G2 does not need to be measured. Figure 10 The table shown is a data table automatically output after one automatic measurement is completed.

[0086] It should be noted that in the above embodiments, the displacement sensor is described using a contact-type GT displacement sensor as an example. However, in other embodiments, other types of contact or non-contact displacement sensors can also be used, such as inductive displacement sensors, capacitive displacement sensors, laser displacement sensors, etc., as long as they can achieve the dimensional measurement of the corresponding position of the decorative panel product.

[0087] In the above embodiments, the driving component is described using a cylinder (including a lifting cylinder, a pushing cylinder, and a rodless cylinder) as an example. However, in other embodiments, the driving component can also be a hydraulic cylinder, an electric push rod, a lead screw and nut mechanism, or other linear driving devices, as long as they can drive the displacement sensor to move between the measuring position and the avoidance position.

[0088] In the above embodiments, the decorative panel product is illustrated using an automotive charging port cover assembly as an example. However, the testing agency of this application is not limited to this specific product and can also be applied to other decorative panel products with a flip-open structure that require multi-point dimensional testing. By changing the shape of the contour positioning block and the calibration block, different models and sizes of decorative panel products can be adapted, demonstrating good versatility and replaceability.

[0089] Based on the same inventive concept, embodiments of this specification provide an automatic detection method for the dimensions of a decorative panel, which includes the following steps:

[0090] At the start of each workday, all displacement sensors are first zeroed. The telescopic linear guide rail 82 on the sensor calibration assembly 8 is manually pulled out and fixed, and then the calibration block 81 is installed. After pressing the start button, the lateral measurement sensor lateral movement assembly 5 extends into position via the push cylinder 51, the right lateral movement assembly 6 of the surface measurement sensor moves to the left position via the right rodless cylinder 61, and the left lateral movement assembly 7 of the surface measurement sensor moves to the right position via the left rodless cylinder 71. All displacement sensors extend simultaneously under pneumatic drive, contacting their corresponding positions on the calibration block 81. The system automatically zeroes all displacement sensors according to these positions, setting this position as the detection standard zero point. After zeroing, each displacement sensor is de-aired and reset, and each cylinder resets simultaneously. The calibration block 81 is then manually disassembled.

[0091] The decorative panel product is placed on the positioning component 2 by the manual. The upper contour positioning block 21 and the lower contour positioning block 22 of the product are used to fix the decorative panel product in a fixed position. At the same time, the plug on the decorative panel product is inserted into the probe mounting block 31 of the power supply component 3 by the manual. The plug is fixed by the plug buckle 33, so that the power supply probe 32 is in contact with the plug.

[0092] The power-on component 3 powers the decorative panel product through the power-on probe 32, causing the decorative panel to automatically flip open and then automatically flip close. This step eliminates the positional shift of the decorative panel product during assembly and handling, and uses the product's own hinges and limiters to achieve position reset.

[0093] After power-on and flipping, the side measurement sensor lateral movement assembly 5 extends into position via the push cylinder 51, the right lateral movement assembly 6 of the surface measurement sensor moves to the left into position via the right rodless cylinder 61, and the left lateral movement assembly 7 of the surface measurement sensor moves to the right into position via the left rodless cylinder 71. Simultaneously, the side measurement sensor lifting assembly 4 descends into position via the lifting cylinder 41. All displacement sensors extend simultaneously under pneumatic drive to measure the corresponding positions on the decorative panel. After measurement, all displacement sensors are de-pneumatically reset, all cylinders reset simultaneously, and the lifting cylinder 41 drives the upper contour positioning block 21 to rise, releasing the positioning of the decorative panel product.

[0094] The control unit automatically compares the measurement data at each point with the preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified. For qualified products, the printer automatically outputs a qualified label; for unqualified products, an "NG" message is displayed on the PC screen. Simultaneously, all measurement data is automatically generated into a data table, saved to the PC, and synchronously uploaded to the MES system.

[0095] The above-mentioned testing method automates the entire process of positioning, power-on reset, multi-point measurement, automatic judgment, and data generation. Before measurement, the product position offset is eliminated by powering on and off, ensuring the accuracy of the measurement data and significantly improving testing efficiency.

[0096] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the method embodiments described later are relatively simple in description since they correspond to the system, and relevant parts can be referred to the descriptions in the system embodiments.

[0097] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic size detection mechanism for decorative panels, characterized in that, include: frame; Positioning components are used to position decorative panel products. A sensor measurement assembly, mounted on the frame, includes a displacement sensor and a drive unit. The drive unit is used to drive the displacement sensor to move between a measurement position and an avoidance position in order to measure the dimensions of the corresponding position of the decorative panel product. An energizing component, mounted on the frame, is used to electrically connect to and energize the decorative panel product, causing the decorative panel on the product to automatically flip open and then automatically flip close, thereby eliminating the positional offset of the decorative panel before measurement.

2. The automatic size detection mechanism for decorative panels according to claim 1, characterized in that, The power-on component includes a probe mounting block, a power-on probe, and a plug clip; The probe mounting block is mounted on the frame, and the power-conducting probe is mounted on the probe mounting block. The front end of the power-conducting probe has telescopic elasticity and is used to insert into the pin hole inside the plug on the decorative panel product and make contact with the plug to conduct electricity. The plug buckle is used to fix the plug after the power-conducting probe is inserted into the plug.

3. The automatic size detection mechanism for decorative panels according to claim 2, characterized in that, The plug latch includes a mounting bracket, an unlocking lever, and a lever spring. The mounting bracket is disposed on the probe mounting block, the unlocking lever is rotatably mounted on the mounting bracket, and the two ends of the lever spring are respectively connected to the mounting bracket and the unlocking lever. When the plug is inserted, it pushes the unlocking lever to rotate relative to the mounting bracket, causing the lever spring to be compressed. When the plug descends to the designated position, the unlocking lever returns to its original position under the elastic force of the lever spring and presses against the top of the plug to lock it in place.

4. The automatic size detection mechanism for decorative panels according to claim 3, characterized in that, The power supply component powers the decorative panel product for 5 seconds, wherein the decorative panel flips open for 3 seconds and flips close for 2 seconds. The decorative panel product uses its own Hall sensor to determine whether the decorative panel has flipped and closed in place. After the power supply is completed, pushing the unlock lever can pull out the plug.

5. The automatic decorative panel size detection mechanism according to any one of claims 1-4, characterized in that, The sensor measurement component includes: The side measurement sensor lifting assembly includes a lifting cylinder and a plurality of first displacement sensors connected to the lifting cylinder. The lifting cylinder is used to drive the first displacement sensors to rise and fall to the measurement position in order to measure the corresponding position dimension of the side of the decorative panel product. A lateral measurement sensor lateral movement assembly includes a push cylinder and a plurality of second displacement sensors connected to the push cylinder, wherein the push cylinder is used to drive each of the second displacement sensors to move laterally to the measurement position; The surface measurement sensor right lateral movement assembly includes a right rodless cylinder and a plurality of third displacement sensors connected to the right rodless cylinder. The right rodless cylinder is used to drive each of the third displacement sensors to move laterally to the measurement position. The left transverse component of the surface measurement sensor includes a left rodless cylinder and a plurality of fourth displacement sensors connected to the left rodless cylinder. The left rodless cylinder is used to drive each of the fourth displacement sensors to transverse to the measurement position. Each group of displacement sensors can move between a measurement position and an avoidance position to simultaneously measure the dimensions of multiple points on the side and surface of the decorative panel product.

6. The automatic size detection mechanism for decorative panels according to claim 5, characterized in that, The positioning component includes an upper contour positioning block and a lower contour positioning block, which are respectively matched with the upper and lower shapes of the decorative panel product for contour positioning and clamping of the decorative panel product. The lower contour positioning block is installed on the frame, and the upper contour positioning block is connected to the side measurement sensor lifting assembly and moves toward or away from the lower contour positioning block under the drive of the lifting cylinder.

7. The automatic size detection mechanism for decorative panels according to claim 6, characterized in that, The sensor measurement assembly also includes multiple manual positioning pins and multiple positioning proximity sensors, which correspond to the side measurement sensor lifting assembly, the side measurement sensor lateral movement assembly, the surface measurement sensor right lateral movement assembly, and the surface measurement sensor left lateral movement assembly, respectively. The multiple manual positioning pins are respectively used to be inserted into the positioning pin sleeves on the moving blocks of the corresponding measuring components during inspection, so as to verify whether the positions of each displacement sensor and / or the upper contour positioning block after closure are in place as designed theoretical positions; The plurality of said proximity sensors are used to detect whether the moving block of the corresponding measuring component is in place each time a closure is made.

8. The automatic size detection mechanism for decorative panels according to claim 7, characterized in that, The detection mechanism also includes a sensor calibration component, which includes a calibration block, a telescopic linear guide, an extended proximity sensor, and a reset proximity sensor. The calibration block is manufactured by copying the shape of the decorative panel product at a 1:1 scale and is detachably installed on the telescopic linear guide rail. The extension-in-position proximity sensor and the reset-in-position proximity sensor are used to detect the extension-in-position and reset-in-position states of the telescopic linear guide rail, respectively. During calibration, the telescopic linear guide is pulled out and fixed, and each displacement sensor of the sensor measurement assembly simultaneously extends its measuring head and contacts the corresponding position of the calibration block, setting this position as the detection zero point.

9. The automatic size detection mechanism for decorative panels according to claim 1, characterized in that, The testing mechanism also includes a control unit; The control unit is used to compare the measurement data of each displacement sensor with the preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified.

10. A method for automatically detecting the dimensions of a decorative panel, characterized in that, Applied to the testing institution as described in any one of claims 1-9, comprising: The decorative panel product is placed on the positioning component, and the positioning component is used to position the decorative panel product. By energizing the decorative panel product with the power supply component, the decorative panel on the product can be automatically flipped open and then automatically flipped closed, so as to eliminate the positional displacement of the decorative panel during assembly and handling. The displacement sensor is driven by a drive component to move from the avoidance position to the measurement position to measure the size of the corresponding position of the decorative panel product. After the measurement is completed, the displacement sensor is driven to reset to the avoidance position. The measured data is compared with the preset upper and lower limits of dimensional offset to determine whether the dimensions of the corresponding position of the decorative panel product are qualified, and a dimensional data table is generated.

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