Decorative panel curved surface polishing and grinding equipment

Abstract

The invention discloses decoration panel curved surface polishing and grinding equipment, and particularly relates to the technical field of decoration panel machining, the decoration panel curved surface polishing and grinding equipment comprises a mounting frame, a grinding head, a polishing and grinding motor used for providing rotation kinetic energy for the grinding head, a mounting disc used for mounting a decoration panel veneer, and a clamping and fixing mechanism used for clamping and fixing the decoration panel veneer; a central processing unit is arranged on one side of the mounting frame, a transverse driving mechanism and a vertical lifting mechanism are arranged at the top of the mounting frame, the transverse driving mechanism is used for controlling the grinding head to linearly move in the horizontal direction, and a plate translation mechanism is arranged at the bottom of the mounting frame. The top of the central processing unit is provided with an early warning lamp used for early warning prompt. The device further comprises a transverse displacement sensing module, a vertical displacement sensing module and a workpiece displacement sensing module. The problem that the positioning precision of the grinding head is reduced is solved, and high-precision dynamic adjustment and stable control of the grinding position are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of decorative panel processing, and more specifically, to a decorative panel curved surface polishing and grinding device. Background Art

[0002] Decorative panels are surface covering materials widely used in indoor and outdoor decoration, furniture manufacturing, interior decoration of transportation vehicles, etc. They are usually made of wood, metal, plastic or composite materials. Their main function is to provide an aesthetic appearance and certain protection performance on the surface of structural materials. To meet the diverse and three-dimensional requirements of modern design for decorative effects, more and more decorative panels are designed with complex curved surface structures, such as curved shapes, wavy surfaces or free-form surfaces. Such non-planar plates need to go through a series of fine processing steps during manufacturing, including cutting and forming, curved surface shaping, surface treatment (such as film laminating, painting), and polishing and grinding. Among them, curved surface polishing and grinding is a key process to ensure the unity of the surface finish and texture of decorative panels. Especially after hot pressing or molding, there are often microscopic unevenness, scratches or processing marks in the curved surface area, which directly affect its visual beauty and the adhesion effect of subsequent surface coatings. Through high-precision polishing and grinding treatment, not only can the processing defects on the curved surface be effectively eliminated, its smoothness and uniformity be improved, but also the overall texture, durability and product added value of the decorative panel can be enhanced. Therefore, the efficient, uniform and automated polishing and grinding of decorative panel curved surfaces has become one of the key topics in the research and development of high-end customized decorative board processing equipment.

[0003] The existing technology has the following deficiencies: In the actual operation process of existing decorative panel curved surface polishing and grinding equipment, it usually relies on a multi-axis mechanical structure to drive the grinding head and the decorative panel body to frequently adjust positions in space to meet the processing requirements of surfaces with diverse curvatures. However, due to the high frequency and high complexity of such spatial adjustment actions, the key moving parts of the equipment (such as robotic arm joints, linear sliding rails, lifting platforms, rotating brackets, etc.) are prone to structural wear and clearance accumulation after long-term operation, and then the positioning accuracy of the grinding head gradually decreases during repeated operations. Especially when dealing with areas with drastic curvature changes or detailed corners, the grinding head often fails to accurately move to the target position, resulting in problems such as incomplete grinding or over-grinding, seriously affecting the surface finish and consistency of the final product, and also increasing the maintenance frequency and operation cost, which has become an important technical bottleneck restricting the long-term stable operation and improvement of processing quality of such equipment.

[0004] The above information disclosed in the background art section is only used to enhance the understanding of the background of the present disclosure, and therefore it may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides a decorative panel curved surface polishing and grinding device to solve the problems put forward in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A decorative panel curved surface polishing and grinding device, including a mounting frame, a grinding head, a polishing and grinding motor, a mounting disc and a clamping and fixing mechanism. A central processing unit is provided on one side of the mounting frame. A horizontal driving mechanism and a vertical lifting mechanism are respectively provided on the top of the mounting frame. The horizontal driving mechanism includes a moving frame. A sheet material translation mechanism is provided at the bottom of the mounting frame. The sheet material translation mechanism includes a base. A warning light for warning and prompting is provided on the top of the central processing unit.

[0008] It further includes:

[0009] A horizontal displacement sensing module, provided on the top of the mounting frame, for generating a horizontal offset coefficient;

[0010] A vertical displacement sensing module, provided on one side of the moving frame, for generating a vertical offset coefficient;

[0011] A workpiece displacement sensing module, provided on the inner side wall of the base, for generating a workpiece translation deviation index;

[0012] The central processing unit comprehensively analyzes the generated horizontal offset coefficient, vertical offset coefficient and workpiece translation deviation index, judges whether the grinding head moves to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, and controls the working states of the horizontal driving mechanism, vertical lifting mechanism, sheet material translation mechanism and warning light according to the judgment result.

[0013] Preferably, the horizontal driving mechanism further includes a first motor, a first gear transmission box, a first lead screw, a first support plate, a first slider and a first slide rail. The output shaft of the first motor is in transmission connection with the input shaft of the first gear transmission box. One side of the first gear transmission box is fixedly connected with one side of the mounting frame. The output shaft of the first gear transmission box is in transmission connection with one end of the first lead screw. The other end of the first lead screw is movably connected with one side of the first support plate through a bearing. The bottom of the first support plate is fixedly connected with the top of the mounting frame. The outer wall of the first lead screw is in transmission connection with the inner side wall of the moving frame. The inner side wall of the moving frame is fixedly connected with one side of the first slider. The outer wall of the first slider is slidably connected with the inner side wall of the first slide rail. One side of the first slide rail is fixedly connected with one side of the mounting frame. The horizontal driving mechanism is used to control the grinding head to perform linear movement in the horizontal direction.

[0014] Preferably, the vertical lifting mechanism includes a cylinder mounting block, a cylinder, a telescopic rod, and a connecting frame. One side of the cylinder mounting block is fixedly connected to one side of the moving frame. The top of the cylinder mounting block is fixedly connected to the bottom of the cylinder. The output shaft of the cylinder is in transmission connection with the input shaft of the telescopic rod. The output shaft of the telescopic rod is fixedly connected to the top of the connecting frame. The inner side wall of the connecting frame is fixedly connected to the outer wall of the polishing and grinding motor. The vertical lifting mechanism is used to control the linear movement of the grinding head in the vertical direction.

[0015] Preferably, the plate translation mechanism further includes a second motor, a second gear transmission box, a second lead screw, a second support plate, a moving block, a second slide rail, and a second slider. The bottom of the second motor is fixedly connected to the top of the base. The output shaft of the second motor is in transmission connection with the input shaft of the second gear transmission box. The output shaft of the second gear transmission box is in transmission connection with one end of the second lead screw. The other end of the second lead screw is movably connected to one side of the second support plate through a bearing. The bottom of the second gear transmission box and the bottom of the second support plate are both fixedly connected to the top of the base. The outer wall of the second lead screw is in transmission connection with the inner side wall of the moving block. The top of the moving block is fixedly connected to the bottom of the mounting plate. The bottom of the second slide rail is fixedly connected to the top of the base. The outer wall of the second slide rail is slidably connected to the inner side wall of the second slider. The top of the second slider is fixedly connected to the bottom of the mounting plate. The plate translation mechanism is used to control the linear movement of the mounting plate in the horizontal direction.

[0016] Preferably, the output end of the central processing unit is electrically connected to the input ends of the polishing and grinding motor, the first motor, the cylinder, the second motor, and the warning lamp respectively. The output and input ends of the lateral displacement sensing module, the output and input ends of the vertical displacement sensing module, and the output and input ends of the workpiece displacement sensing module are electrically connected to the input and output ends of the central processing unit respectively.

[0017] Preferably, the acquisition logic of the lateral offset coefficient is as follows:

[0018] S1. Obtain the actual linear movement distance of the moving frame in the horizontal direction at different times during the polishing and grinding process through the lateral displacement sensing module, and label it as indicating the actual linear movement distance of the moving frame in the horizontal direction at the m-th moment during the polishing and grinding process, where m = 1, 2, 3, 4,..., g, and g is a positive integer;

[0019] S2. Obtain the preset linear movement distance of the moving frame in the horizontal direction at different times during the polishing and grinding process through the central processing unit, and label it as

[0020] S3. Calculate the lateral offset coefficient, and the calculation expression is:

[0021]

[0022] Wherein, LDC is the lateral offset coefficient.

[0023] Preferably, the acquisition logic of the vertical offset coefficient is as follows:

[0024] S1. The actual linear movement distance of the grinding head in the vertical direction at different times during the polishing and grinding process is obtained in real time through the vertical displacement sensing module, and is calibrated as indicating the actual linear movement distance of the grinding head in the vertical direction at the m-th moment during the polishing and grinding process, where m = 1, 2, 3, 4,..., g, and g is a positive integer;

[0025] S2. The preset linear movement distance of the grinding head in the vertical direction at different times during the polishing and grinding process is obtained through the central processing unit, and is calibrated as

[0026] S3. Calculate the vertical offset coefficient, and the calculation formula is:

[0027]

[0028] Wherein, VDC is the vertical offset coefficient.

[0029] Preferably, the acquisition logic of the workpiece translation deviation index is as follows:

[0030] S1. The actual linear movement distance of the mounting disc in the horizontal direction at different times during the polishing and grinding process is obtained in real time through the workpiece displacement sensing module, and is calibrated as indicating the actual linear movement distance of the mounting disc in the horizontal direction at the m-th moment during the polishing and grinding process, where m = 1, 2, 3, 4,..., g, and g is a positive integer;

[0031] S2. The preset linear movement distance of the mounting disc in the horizontal direction at different times during the polishing and grinding process is obtained through the central processing unit, and is calibrated as

[0032] S3. Calculate the workpiece translation deviation index, and the calculation formula is:

[0033]

[0034] Wherein, TDI is the workpiece translation deviation index.

[0035] Preferably, the central processing unit comprehensively analyzes the generated lateral offset coefficient, vertical offset coefficient and workpiece translation deviation index to generate a judgment coefficient, and the specific calculation formula is as follows:

[0036]

[0037] In the formula, PD is the judgment coefficient, ω 1 , ω 2 and ω 3 are respectively the preset proportionality coefficients of the lateral offset coefficient LDC, the vertical offset coefficient VDC, and the workpiece translation deviation index TDI, and ω 1 , ω 2 and ω 3 are all greater than 0.

[0038] Preferably, the preset judgment coefficient reference threshold is set to PD yuzhi , and the calculated judgment coefficient PD and the preset judgment coefficient reference threshold PD yuzhi are compared by the central processing unit. According to the comparison result, it is judged whether the grinding head has moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, and the working states of the lateral driving mechanism, the vertical lifting mechanism, the sheet material translation mechanism, and the warning light are controlled according to the judgment result. The specific judgment is as follows:

[0039] When PD ≤ PD yuzhi , the grinding head moves to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, generating a normal signal. After receiving the normal signal, the central processing unit generates a holding signal and a standby signal, and transmits the holding signal to the first motor, the cylinder, and the second motor respectively. After receiving the holding signal, the first motor, the cylinder, and the second motor respectively control the lateral driving mechanism, the vertical lifting mechanism, and the sheet material translation mechanism to perform holding work, and transmit the standby signal to the warning light. After receiving the standby signal, the warning light performs standby work;

[0040] When PD > PD yuzhi , the grinding head has not moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, generating an abnormal signal. After receiving the abnormal signal, the central processing unit generates an adjustment signal and a warning signal, and transmits the adjustment signal to the first motor, the cylinder, and the second motor respectively. After receiving the adjustment signal, the first motor, the cylinder, and the second motor respectively control the lateral driving mechanism, the vertical lifting mechanism, and the sheet material translation mechanism to perform adjustment work, and transmit the warning signal to the warning light. After receiving the warning signal, the warning light performs warning work.

[0041] The technical effects and advantages of the present invention:

[0042] 1. The present invention realizes the precise coordinated movement of the grinding head and the decorative panel in three axial directions by constructing a three-dimensional space linkage system including a lateral drive mechanism, a vertical lifting mechanism, and a plate translation mechanism. Through the reasonable cooperation of components such as motors, gear transmission boxes, lead screws, sliders, and slide rails inside each mechanism, the structural rigidity and positioning stability of the grinding system during long-term high-frequency operation are ensured. At the same time, through the four groups of symmetrically arranged lead screw and slide rail structures, the dynamic loads and reaction forces generated during the grinding process are effectively dispersed, solving the problems of structural wear and decreased displacement accuracy caused by long-term operation of traditional equipment, and significantly improving the attitude holding ability and mechanical reliability of the system during the grinding process of complex curved surfaces.

[0043] 2. The present invention introduces three evaluation parameters: the lateral offset coefficient, the vertical offset coefficient, and the workpiece translation deviation index. By using multiple sensors to real-time obtain the spatial position data of the grinding head and the workpiece, and combining with the central processing unit for deviation calculation, judgment analysis, and accuracy evaluation, a quantifiable spatial error determination system is established. The system can automatically send a holding signal or an adjustment signal according to the offset evaluation result, and drive the three major mechanisms to perform position holding or fine adjustment operations respectively, realizing the dynamic correction and precise alignment of the grinding head during the processing process, effectively avoiding quality problems such as incomplete grinding and excessive grinding caused by mechanism wear or transmission errors, and ensuring the grinding consistency and process stability of complex curved surface areas.

[0044] 3. The present invention also sets up a signal control mechanism for the linkage between the central processing unit and the warning light, which can timely send an abnormal signal and trigger a visual warning when the grinding head is not aligned with the target position, and at the same time supports state switching and continuous feedback, enhancing the controllability and safety of the equipment during operation. This device not only improves the automation level and intelligent operation ability, but also provides an intuitive operation status indication and fault response window for the operator, greatly reducing the frequency of manual intervention and maintenance costs. Therefore, the present invention has significant technical advantages such as reasonable structure, precise control, sensitive response, strong stability, and high degree of intelligence, and is applicable to various automated grinding processing scenarios of high-precision and multi-curvature decorative panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the drawings;

[0046] Figure 1 It is a three-dimensional structural schematic diagram of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0047] Figure 2 It is a front structural schematic diagram of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0048] Figure 3Schematic top view of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0049] Figure 4 Schematic installation view of the lateral driving mechanism and vertical lifting mechanism of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0050] Figure 5 Schematic structural view of the lateral driving mechanism of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0051] Figure 6 Schematic installation view of the moving frame, first slider and first slide rail of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0052] Figure 7 Schematic structural view of the vertical lifting mechanism of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0053] Figure 8 Schematic installation view of the mounting disc, clamping and fixing mechanism and sheet translation mechanism of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0054] Figure 9 Schematic structural view of the sheet translation mechanism of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0055] Figure 10 Schematic installation view of the moving block, second slide rail and second slider of the decorative panel curved surface polishing and grinding equipment proposed by the present invention;

[0056] Figure 11 Module schematic of the decorative panel curved surface polishing and grinding equipment proposed by the present invention.

[0057] In the figure: 1, mounting frame; 2, polishing and grinding motor; 3, grinding head; 4, mounting disc; 5, clamping and fixing mechanism; 6, central processing unit; 7, lateral driving mechanism; 701, first motor; 702, first gear transmission box; 703, first lead screw; 704, first support plate; 705, moving frame; 706, first slider; 707, first slide rail; 8, vertical lifting mechanism; 801, cylinder mounting block; 802, cylinder; 803, telescopic rod; 804, connecting frame; 9, sheet translation mechanism; 901, base; 902, second motor; 903, second gear transmission box; 904, second lead screw; 905, second support plate; 906, moving block; 907, second slide rail; 908, second slider; 10, warning light; 11, lateral displacement sensing module; 12, vertical displacement sensing module; 13, workpiece displacement sensing module. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0059] Embodiment

[0060] As Figures 1-11 shown, the decorative panel curved surface polishing and grinding equipment includes a mounting frame 1, a grinding head 3, a polishing and grinding motor 2 for providing rotational kinetic energy to the grinding head 3, a mounting disk 4 for mounting the decorative panel sheet material, and a clamping and fixing mechanism 5 for clamping and fixing the decorative panel sheet material. A central processing unit 6 is provided on one side of the mounting frame 1. A horizontal driving mechanism 7 and a vertical lifting mechanism 8 are respectively provided on the top of the mounting frame 1. The horizontal driving mechanism 7 includes a moving frame 705. The horizontal driving mechanism 7 is used to control the linear movement of the grinding head 3 in the horizontal direction. The vertical lifting mechanism 8 is used to control the linear movement of the grinding head 3 in the vertical direction. A sheet material translation mechanism 9 is provided at the bottom of the mounting frame 1. The sheet material translation mechanism 9 includes a base 901. The sheet material translation mechanism 9 is used to control the linear movement of the mounting disk 4 in the horizontal direction. An early warning light 10 for early warning and prompting is provided on the top of the central processing unit 6;

[0061] It further includes:

[0062] A horizontal displacement sensing module 11, which is provided on the top of the mounting frame 1 and is used to obtain the actual linear movement distance of the moving frame 705 in the horizontal direction at different moments during the polishing and grinding process in real time, and generate a horizontal offset coefficient through the central processing unit 6;

[0063] It should be noted that the horizontal displacement sensing module 11 can be a grating scale, a magnetic grating scale, a laser displacement sensor or other devices that can obtain the actual linear movement distance of the moving frame 705 in the horizontal direction at different moments during the polishing and grinding process in real time. The horizontal displacement sensing module 11 is not specifically limited here and can be selected according to actual needs.

[0064] A vertical displacement sensing module 12, which is provided on one side of the moving frame 705 and is used to obtain the actual linear movement distance of the grinding head 3 in the vertical direction at different moments during the polishing and grinding process in real time, and generate a vertical offset coefficient through the central processing unit 6;

[0065] It should be noted that the vertical displacement sensing module 12 can be a laser displacement sensor, an inductive displacement sensor, a wire-pulling encoder, or other devices that can obtain the actual linear movement distance of the grinding head 3 in the vertical direction at different times during the polishing and grinding process. The vertical displacement sensing module 12 is not specifically limited here and can be selected according to actual needs.

[0066] The workpiece displacement sensing module 13 is arranged on the inner side wall of the base 901 and is used to obtain the actual linear movement distance of the mounting plate 4 in the horizontal direction at different times during the polishing and grinding process, and generate a workpiece translation deviation index through the central processor 6;

[0067] It should be noted that the workpiece displacement sensing module 13 can be an optical encoder, a magnetic grating ruler, a linear potentiometer, a laser ranging sensor, or other devices that can obtain the actual linear movement distance of the mounting plate 4 in the horizontal direction at different times during the polishing and grinding process. The workpiece displacement sensing module 13 is not specifically limited here and can be selected according to actual needs.

[0068] The central processor 6 comprehensively analyzes the generated lateral offset coefficient, vertical offset coefficient, and workpiece translation deviation index to generate a judgment coefficient. The judgment coefficient is compared with a pre-set judgment coefficient reference threshold, and according to the comparison result, it is judged whether the grinding head 3 has moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, and the working states of the lateral driving mechanism 7, the vertical lifting mechanism 8, the sheet material translation mechanism 9, and the warning light 10 are controlled according to the comparison result.

[0069] Furthermore, it should be noted that the clamping and fixing mechanism 5 is used to clamp and fix the decorative panel sheet material. The clamping and fixing mechanism 5 is arranged on the top of the mounting plate 4 and is used to firmly clamp the decorative panel sheet material during the polishing and grinding process to prevent it from shifting or vibrating during the grinding process, ensuring the grinding accuracy and consistency. This mechanism can achieve the clamping function in various ways. For example: using pneumatic jaws, clamping the edge of the sheet material synchronously by setting multiple jaw components driven by cylinders; or using a screw pressing device, driving a pressing plate with a manual or electric screw rod to press the sheet material vertically; or combining a vacuum adsorption component, setting multiple suction cups on the surface of the mounting plate 4, and forming a negative pressure adsorption force through a vacuum pump to achieve non-destructive fixation of the bottom surface of the sheet material. The above methods can be used alone or in combination, and the clamping method can be automatically or manually adjusted according to the shape and material of the sheet material, so as to ensure that the decorative panel is always in a stable and controlled state throughout the polishing and grinding cycle. The specific implementation method is not specifically limited here and can be selected according to actual needs.

[0070] In this embodiment, the lateral driving mechanism 7 further includes a first motor 701, a first gear transmission box 702, a first lead screw 703, a first support plate 704, a first slider 706, and a first slide rail 707. The output shaft of the first motor 701 is drivingly connected to the input shaft of the first gear transmission box 702. One side of the first gear transmission box 702 is fixedly connected to one side of the mounting frame 1. The output shaft of the first gear transmission box 702 is drivingly connected to one end of the first lead screw 703. The other end of the first lead screw 703 is movably connected to one side of the first support plate 704 through a bearing. The bottom of the first support plate 704 is fixedly connected to the top of the mounting frame 1. The outer wall of the first lead screw 703 is drivingly connected to the inner wall of the moving frame 705. The inner wall of the moving frame 705 is fixedly connected to one side of the first slider 706. The outer wall of the first slider 706 is slidably connected to the inner wall of the first slide rail 707. One side of the first slide rail 707 is fixedly connected to one side of the mounting frame 1.

[0071] It should be noted that the first gear transmission box 702 mainly realizes the transmission of the rotational kinetic energy of the received first motor 701 to the first lead screw 703 through the mutual cooperation of the internal gears, thereby driving the first lead screw 703 to rotate. The specific cooperation mode of the internal gears of the first gear transmission box 702 is not specifically limited here and can be selected according to the actual situation.

[0072] Furthermore, it should be noted that a total of four groups of first lead screws 703 are provided in the present invention, and these four groups of first lead screws 703 are symmetric with respect to the vertical bisector of the moving frame 705. The main purpose is to ensure the balance, stability, and motion accuracy of the grinding head 3 during the lateral movement. During the grinding process, the grinding head 3 will be affected by the reaction force from the material surface and the motion inertia of the equipment itself. If only a single-sided or asymmetrically distributed lead screw structure is set, it is easy to cause problems such as uneven force, offset, tilt, and even jamming of the moving frame 705 during operation, affecting the accuracy and repeatability of the grinding trajectory. By adopting a structure of four groups of symmetrically arranged first lead screws 703, multi-point synchronous support and uniform transmission of the moving frame 705 can be realized during lateral movement, effectively dispersing the load, resisting the interference of the lateral torque, and maintaining the stability and linearity of the motion posture, thereby greatly improving the positioning accuracy and dynamic response performance of the grinding head 3 in the complex curved surface trajectory and ensuring the stable output of the overall grinding quality. The number of the first lead screws 703 can also be set to other values, which are not specifically limited here as long as the requirements can be met. Similarly, a total of four groups of first sliders 706 and first slide rails 707 are also provided in the present invention, and these four groups of first sliders 706 and first slide rails 707 are also symmetric with respect to the vertical bisector of the moving frame 705. Similarly, the number of the first sliders 706 and first slide rails 707 can also be set to other values, which are not specifically limited here as long as the requirements can be met.

[0073] The lateral drive mechanism 7 is used to control the linear movement of the grinding head 3 in the horizontal direction. The specific implementation method is as follows: The first motor 701 outputs rotational kinetic energy, which is transmitted to the first lead screw 703 through the gear meshing structure inside the first gear transmission box 702, causing the first lead screw 703 to rotate around its own axis; the external thread of the first lead screw 703 is matched with the threaded hole structure arranged on the inner side of the moving frame 705. Driven by the rotation of the lead screw, the moving frame 705 realizes linear movement along the axial direction of the lead screw in the horizontal direction; one side of the moving frame 705 is fixedly connected to the first slider 706, and the outer wall of the first slider 706 and the inner wall of the first slide rail 707 are connected through sliding to form a guiding support, making the moving process more stable and reliable; the four groups of first lead screws 703, the four groups of first sliders 706 and the first slide rails 707 are arranged symmetrically with the perpendicular bisector of the moving frame 705 as the axis of symmetry. Through the coordinated cooperation of multi-point uniform transmission and sliding guidance, not only the stability and balance of the grinding head 3 during lateral movement are improved, but also the positioning accuracy and structural reliability under complex force or high-speed operation conditions are ensured. Finally, through the coordinated cooperation of this transmission system, the high-precision linear movement control of the grinding head 3 in the horizontal direction is realized.

[0074] In this embodiment, the vertical lifting mechanism 8 includes a cylinder mounting block 801, a cylinder 802, a telescopic rod 803 and a connecting frame 804. One side of the cylinder mounting block 801 is fixedly connected to one side of the moving frame 705, the top of the cylinder mounting block 801 is fixedly connected to the bottom of the cylinder 802, the output shaft of the cylinder 802 is in transmission connection with the input shaft of the telescopic rod 803, the output shaft of the telescopic rod 803 is fixedly connected to the top of the connecting frame 804, and the inner side wall of the connecting frame 804 is fixedly connected to the outer wall of the polishing and grinding motor 2.

[0075] The vertical lifting mechanism 8 is used to control the linear movement of the grinding head 3 in the vertical direction. The specific implementation method is as follows: One side of the cylinder mounting block 801 is fixedly connected to the moving frame 705, providing a stable mounting foundation for the entire vertical drive system. The bottom of the cylinder 802 is fixedly installed on the top of the cylinder mounting block 801, ensuring the stable positioning of the cylinder 802 during movement. The cylinder 802 is internally provided with a piston structure, and its output shaft is in transmission connection with the input end of the telescopic rod 803. After compressed gas is introduced into the cylinder 802, the telescopic rod 803 is driven by the piston to achieve linear reciprocating motion upward or downward. The output end of the telescopic rod 803 is fixedly connected to the top of the connecting frame 804, and the connecting frame 804 is used to carry the polishing and grinding motor 2 and is fixedly connected to the outer wall of the polishing and grinding motor 2 through its inner side wall. Thus, while the telescopic rod 803 drives the connecting frame 804 to move vertically, the entire grinding head 3 is driven to achieve synchronous lifting in the vertical direction. Through the rigid connection and linear transmission cooperation between the above components, the vertical lifting mechanism 8 can efficiently and stably achieve precise linear control of the grinding head 3 in the Z-axis direction, thereby meeting the operation requirements at different height positions during the grinding process of complex curved surfaces.

[0076] In this embodiment, the sheet translation mechanism 9 further includes a second motor 902, a second gear transmission box 903, a second lead screw 904, a second support plate 905, a moving block 906, a second slide rail 907, and a second slider 908. The bottom of the second motor 902 is fixedly connected to the top of the base 901. The output shaft of the second motor 902 is in transmission connection with the input shaft of the second gear transmission box 903. The output shaft of the second gear transmission box 903 is in transmission connection with one end of the second lead screw 904. The other end of the second lead screw 904 is movably connected to one side of the second support plate 905 through a bearing. The bottom of the second gear transmission box 903 and the bottom of the second support plate 905 are both fixedly connected to the top of the base 901. The outer wall of the second lead screw 904 is in transmission connection with the inner side wall of the moving block 906. The top of the moving block 906 is fixedly connected to the bottom of the mounting plate 4. The bottom of the second slide rail 907 is fixedly connected to the top of the base 901. The outer wall of the second slide rail 907 is slidably connected to the inner side wall of the second slider 908. The top of the second slider 908 is fixedly connected to the bottom of the mounting plate 4.

[0077] It should be noted that the second gear transmission box 903 mainly transmits the rotational kinetic energy of the received second motor 902 to the second lead screw 904 through the mutual cooperation of the internal gears, thereby driving the second lead screw 904 to rotate. The specific cooperation method of the internal gears of the second gear transmission box 903 is not specifically limited here and can be selected according to actual situations.

[0078] It should be further explained that a total of four groups of second screw rods 904 are provided in the present invention, and these four groups of second screw rods 904 are symmetrical with each other with the perpendicular midline of the moving block 906 as the axis of symmetry, mainly to ensure that the mounting plate 4 has higher structural balance, operation stability and linear guide accuracy during the horizontal movement. Since the decorative panel sheet has a certain weight and size on the mounting plate 4, and will be subjected to the indirect force of the grinding head 3 during the polishing and grinding process, if only a single group or an asymmetrically distributed screw rod structure is provided, it is easy to cause the moving block 906 to have problems such as overload, skew, shaking or uneven force during operation, thereby affecting the position accuracy of the sheet during the translation process and the operating life of the platform. By adopting the method of symmetrical arrangement of four groups of second screw rods 904, it is possible to realize multi-point uniform driving and synchronous guidance of the moving block 906 and the mounting plate 4 it carries, so that the platform can maintain uniform, stable and linear movement in the horizontal direction, effectively avoiding the offset or slippage caused by load imbalance, thereby ensuring that the decorative panel is always in an ideal spatial position during the processing process, improving the consistency of the polishing quality and the reliability of the system operation. The second screw rod 904 can also be set to other quantities, but it must meet this requirement. The specific quantity set is not specifically limited here and can be selected according to actual needs. Similarly, the second slide rail 907 and the second slider 908 are set in two groups in the present invention, and these two groups of second slide rails 907 and second sliders 908 are symmetrical to each other with the median perpendicular line of the mounting plate 4 as the symmetry axis. Similarly, the second slide rail 907 and the second slider 908 can also be set to other quantities, which are not specifically limited here and can be selected according to actual needs.

[0079] The plate translation mechanism 9 is used to control the linear movement of the mounting plate 4 in the horizontal direction. The specific implementation method is as follows: The second motor 902 is fixedly installed on the top of the base 901, and its output shaft is drivingly connected to the input shaft of the second gear transmission box 903. Inside the second gear transmission box 903, through the meshing cooperation between gears, the rotational kinetic energy of the motor is transmitted to the second lead screw 904, driving the second lead screw 904 to rotate around its own axis. One end of the second lead screw 904 is connected to the second gear transmission box 903, and the other end is movably connected to the second support plate 905 through a bearing, and this support plate is also fixed to the top of the base 901, thus ensuring the stable support at both ends of the lead screw and smooth rotation. The external thread of the second lead screw 904 meshes with the threaded structure inside the moving block 906, driving the moving block 906 to perform linear movement along the horizontal direction Y-axis during the rotation of the lead screw. The top of the moving block 906 is fixedly connected to the bottom of the mounting plate 4, causing the mounting plate 4 to move synchronously. At the same time, the second slider 908 is arranged at the bottom of the mounting plate 4, and provides linear guidance and lateral support through sliding cooperation with the second slide rail 907, ensuring the balance and anti-lateral interference ability of the mounting plate 4 during movement. The four groups of second lead screws 904 are distributed symmetrically with the perpendicular bisector of the moving block 906 as the axis of symmetry, and cooperate with the two groups of symmetrically arranged second slide rails 907 and second sliders 908, enabling the mounting plate 4 to achieve high-precision, low-offset, stable and uniform linear translation in the horizontal direction, providing a reliable guarantee for the precise positioning of the decorative panel during the grinding process.

[0080] In this embodiment, the output end of the central processing unit 6 is electrically connected to the input end of the polishing and grinding motor 2, the input end of the first motor 701, the input end of the cylinder 802, the input end of the second motor 902, and the input end of the warning light 10 respectively. The output end and input end of the lateral displacement sensing module 11, the output end and input end of the vertical displacement sensing module 12, and the output end and input end of the workpiece displacement sensing module 13 are electrically connected to the input end and output end of the central processing unit 6 respectively;

[0081] It should be noted that electrical connection refers to the process of transmitting current from one part of an electronic device or circuit to another part through a conductive material or conductive component. This connection is a key component for the operation of electronic devices and circuits, ensuring the effective transmission and connection of the electronic current in electronic devices. Electrical connection can be achieved by using wires. The specific manner of electrical connection between the central processing unit 6 and the polishing and grinding motor 2, the first motor 701, the cylinder 802, the second motor 902, the warning light 10, the lateral displacement sensing module 11, the vertical displacement sensing module 12, and the workpiece displacement sensing module 13 is not specifically limited and can be selected according to actual needs.

[0082] In the actual operation of existing decorative panel curved surface polishing and grinding equipment, it usually relies on a multi-axis mechanical structure to drive the grinding head 3 and the decorative panel body to frequently adjust their positions in space to meet the processing requirements of surfaces with diverse curvatures. However, due to the high frequency and complexity of such spatial adjustment actions, key moving components of the equipment, such as robotic arm joints, linear sliding rails, lifting platforms, rotating brackets, etc., are prone to structural wear and clearance accumulation after long-term operation, which in turn leads to a gradual decline in the positioning accuracy of the grinding head 3 during repeated operations. Especially when dealing with areas with drastic curvature changes or detailed corners, the grinding head 3 often fails to accurately move to the target position, resulting in problems such as incomplete grinding or excessive grinding, seriously affecting the surface finish and consistency of the final product, increasing the maintenance frequency and operating costs, and becoming an important technical bottleneck restricting the long-term stable operation of such equipment and the improvement of processing quality.

[0083] The fundamental purpose of solving the above technical problems is to improve the positioning accuracy, processing consistency, and long-term operation stability of the decorative panel curved surface polishing and grinding equipment. With the continuous improvement of the market's quality requirements for high-end decorative panels, structures such as complex curved surfaces and fine corners are becoming more common in design, which puts forward higher requirements for the dynamic response accuracy and spatial positioning ability of the grinding equipment. However, during the frequent spatial adjustment process of the existing equipment, due to structural wear and movement clearance accumulation, the grinding head 3 is prone to deviate from the preset trajectory during repeated operations, resulting in uneven grinding, quality fluctuations, and even workpiece scrapping, which not only seriously affects the surface quality of the product but also forces enterprises to frequently carry out maintenance and calibration, increasing the equipment downtime rate and operating costs. Therefore, it is urgent to solve the problem of the accumulation of spatial positioning errors of the grinding head 3 through technical means, realize high-precision dynamic calibration and real-time error compensation during the equipment operation process, so as to ensure the accuracy, efficiency, and consistency of the grinding operation, and improve the enterprise's automated processing ability and core competitiveness.

[0084] In this embodiment, the lateral offset coefficient is a parameter used to measure the deviation degree between the actual movement trajectory of the grinding head 3 on the horizontal X-axis and the preset target trajectory during the grinding process. Its calculation method is to take the average of the relative errors at multiple moments and then perform amplification processing through an exponential function, so as to form a sensitive response to the overall offset trend. This coefficient directly participates in the judgment logic as the judgment basis for whether the grinding head 3 has moved to the target polishing and grinding working position on the curved surface of the decorative panel blank. The larger its value, the more significant the offset errors at multiple time points, the more sensitive the system is to its deviation, which means that the overall accuracy of the trajectory of the grinding head 3 drops more severely. This may not only lead to incomplete grinding or offset of the grinding area but also cause quality problems such as uneven grinding and corner defects, which have a direct negative impact on the final surface finish. Therefore, it must be monitored in real time and corrected in a timely manner.

[0085] The acquisition logic of the lateral offset coefficient is as follows:

[0086] S1. Obtain the actual linear movement distance of the moving frame 705 in the horizontal direction at different moments during the polishing and grinding process through the lateral displacement sensing module 11, and calibrate it as represents the actual linear movement distance of the moving frame 705 in the horizontal direction at the m-th moment during the polishing and grinding process, where m = 1, 2, 3, 4, ……, g, and g is a positive integer;

[0087] S2. Obtain the preset linear movement distance of the moving frame 705 in the horizontal direction at different moments during the polishing and grinding process through the central processing unit 6, and calibrate it as

[0088] "Obtain the preset linear movement distance of the moving frame 705 in the horizontal direction at different moments during the polishing and grinding process through the central processing unit 6" can be achieved in the following ways: First, the central processing unit 6 can be pre-built with a trajectory planning program that matches the workpiece surface model. Before grinding starts, it automatically generates a grinding path based on the size and curvature information of the decorative panel, and stores the preset linear movement distance corresponding to each moment in the control system in the form of a time series; Second, the central processing unit 6 can also be connected to a 3D modeling system or a visual recognition system, dynamically calculate the target trajectory based on the surface scan results of the panel, and then send displacement instructions for each moment to the motion control module in real time. At the same time, use these instruction parameters as the corresponding preset values for offset coefficient calculation; Third, it is also possible to combine the grinding process library or historical processing data, call the stored standard trajectory template in the central processing unit 6, and synchronously retrieve the target displacement values corresponding to different moments in the template with the current position control system. Regardless of which method is adopted, ultimately the central processing unit 6 will compare the obtained preset displacement value with the actual displacement value collected by the sensor for subsequent offset coefficient calculation and accuracy evaluation. The specific implementation method is not specifically limited here and can be selected according to actual needs.

[0089] S3. Calculate the lateral offset coefficient, and the calculation formula is:

[0090]

[0091] In the formula, LDC is the lateral offset coefficient.

[0092] In this embodiment, the vertical offset coefficient is an important parameter used to evaluate the deviation degree between the actual movement trajectory of the grinding head 3 in the vertical direction (Z-axis) and the preset target trajectory during the grinding process. Its acquisition logic is to collect the actual vertical movement distance of the grinding head 3 at different moments during the grinding process in real time through the vertical displacement sensing module 12, and compare and calculate it with the preset vertical target movement distance in the central processor 6. Finally, the average value of the relative error values at multiple time points is taken and substituted into the exponential function formula to obtain the result. The magnitude of the vertical offset coefficient is directly related to determining whether the grinding head 3 has accurately moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material. The larger the value of VDC, the more significant the deviation between the actual path and the target path, and the lower the positioning accuracy of the grinding head 3 in the vertical direction. This may cause the grinding head 3 to be unable to closely adhere to the curved surface of the sheet material for effective processing, resulting in problems such as uneven grinding, varying depths, or surface defects, affecting the overall grinding quality and product consistency.

[0093] The acquisition logic of the vertical offset coefficient is as follows:

[0094] S1. Obtain the actual linear movement distance of the grinding head 3 in the vertical direction at different moments during the polishing and grinding process in real time through the vertical displacement sensing module 12, and label it as represents the actual linear movement distance of the grinding head 3 in the vertical direction at the m-th moment during the polishing and grinding process, where m = 1, 2, 3, 4, ……, g, and g is a positive integer;

[0095] S2. Obtain the preset linear movement distance of the grinding head 3 in the vertical direction at different moments during the polishing and grinding process through the central processor 6, and label it as

[0096] "Obtaining the preset linear movement distance of the grinding head 3 in the vertical direction at different moments during the polishing and grinding process through the central processing unit 6" can be achieved in the following ways: First, the central processing unit 6 can call the preset grinding path planning data during system initialization. This data is constructed based on the three-dimensional surface model or CAD design drawing of the decorative panel, contains the target displacement values of the grinding head 3 on the Z-axis in the vertical direction at each time node, and is stored in the control system in the form of a data table or function. Second, by connecting a three-dimensional scanning system or a visual recognition module, the curvature distribution and local height difference information of the current decorative panel can be recognized in real time. The central processing unit 6 dynamically calculates and generates the vertical movement instruction corresponding to the moment, and at the same time stores it as a preset value in the evaluation system. In addition, in repetitive production, the standard grinding trajectory template matching this panel in the historical process database can also be called, and the central processing unit 6 reads the corresponding preset displacement value of the Z-axis according to the current time beat. Regardless of which method is used, this preset displacement sequence obtained by the central processing unit 6 will be used as the reference input, compared with the actually collected actual displacement values in real time, and used for the subsequent calculation of the vertical offset coefficient and the judgment of trajectory correction. The specific implementation method is not specifically limited here and can be selected according to actual needs.

[0097] S3. Calculate the vertical offset coefficient, and the calculation formula is:

[0098]

[0099] In the formula, VDC is the vertical offset coefficient.

[0100] In this embodiment, the workpiece translation deviation index is an important parameter used to measure the degree of difference between the actual movement trajectory of the mounting plate 4 in the horizontal Y-axis direction and its preset target trajectory during the grinding process. Its acquisition logic is as follows: The actual linear movement distance of the mounting plate 4 at different moments during the polishing and grinding process is collected in real time through the workpiece displacement sensing module 13, and the central processing unit 6 obtains the corresponding preset linear movement distance at the same moment. Then, the relative error between the two is brought into the logarithmic function model for exponential transformation, and finally the workpiece translation deviation index TDI is calculated. The magnitude of this index is directly related to "judging whether the grinding head 3 moves to the target polishing and grinding working position on the surface of the decorative panel sheet material". The larger the TDI value, the more serious the deviation of the mounting plate 4 from the predetermined trajectory during operation, which may cause problems such as the grinding head 3 deviating from the grinding area, missing grinding or mis-grinding, thus affecting the grinding accuracy and the stability of product quality.

[0101] The acquisition logic of the workpiece translation deviation index is as follows:

[0102] S1. Through the workpiece displacement sensing module 13, the actual linear movement distance of the mounting plate 4 in the horizontal direction at different moments during the polishing and grinding process is obtained in real time and calibrated as represents the actual linear movement distance of the mounting plate 4 in the horizontal direction at time m during the polishing process, where m = 1, 2, 3, 4, ……, g, and g is a positive integer;

[0103] S2. Obtain the preset linear movement distance of the mounting plate 4 in the horizontal direction at different times during the polishing process through the central processing unit 6, and calibrate it as

[0104] "Obtain the preset linear movement distance of the mounting plate 4 in the horizontal direction at different times during the polishing process through the central processing unit 6" can be achieved in the following ways: First, the central processing unit 6 can call the preset workpiece movement trajectory data during the device initialization phase. This trajectory data is set in advance according to the structural dimensions, installation method, and grinding path planning requirements of the decorative panel, and is stored in the control system in the form of a displacement-time comparison table or function. Second, if the system is integrated with a three-dimensional model recognition or image analysis module, the central processing unit 6 can automatically calculate and generate the target displacement values that the mounting plate 4 should reach at different times based on the scanned panel geometry data. Third, for standardized or repetitive workpieces, the central processing unit 6 can also call the historical trajectory template of the corresponding workpiece in the grinding process database and read the preset displacement value of the mounting plate 4 that should be executed at the current time according to the grinding rhythm. Regardless of which method is used, the central processing unit 6 will compare and analyze the obtained preset linear movement distance with the real-time actual movement data obtained by the workpiece displacement sensing module 13, providing key data support for calculating the workpiece translation deviation index and judging the accuracy of the position of the grinding head 3. The specific implementation method is not specifically limited here and can be selected according to actual needs.

[0105] S3. Calculate the workpiece translation deviation index, and the calculation formula is:

[0106]

[0107] In the formula, TDI is the workpiece translation deviation index.

[0108] In this embodiment, the expression formula of the judgment coefficient is:

[0109] After dimensionless processing of LDC, VDC, and TDI, perform formula analysis through the central processing unit 6 according to the formula:

[0110]

[0111] In the formula, PD is the judgment coefficient, ω 1 、ω 2 and ω 3 are the preset proportionality coefficients of the lateral offset coefficient LDC, the vertical offset coefficient VDC, and the workpiece translation deviation index TDI respectively, and ω 1, ω 2 and ω 3 are both greater than 0.

[0112] It can be seen from the calculated expressions that the larger the lateral deviation coefficient LDC, the vertical deviation coefficient VDC, and the workpiece translation deviation index TDI are, the larger the judgment coefficient PD is;

[0113] It should be noted that dimensionlessization is a process of expressing physical quantities in a dimensionless form. In this way, the influence of units on physical problems can be eliminated, making the problem more concise and general; the preset proportionality coefficients ω 1 , ω 2 and ω 3 are for more flexibly adapting to different working conditions and environmental changes in actual monitoring. These preset proportionality coefficients can be adjusted according to specific situations to improve the performance and applicability of the monitoring system.

[0114] In this embodiment, the preset reference threshold of the judgment coefficient is set to PD yuzhi , and the calculated judgment coefficient PD and the preset reference threshold of the judgment coefficient PD yuzhi are compared by the central processing unit 6. According to the comparison result, it is judged whether the grinding head 3 has moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, and the working states of the lateral driving mechanism 7, the vertical lifting mechanism 8, the sheet material translation mechanism 9, and the warning lamp 10 are controlled according to the comparison result. The specific judgment is as follows:

[0115] When PD ≤ PD yuzhi , the grinding head 3 moves to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, generating a normal signal. After receiving the normal signal, the central processing unit 6 generates a holding signal and a standby signal, and transmits the holding signal to the first motor 701, the cylinder 802, and the second motor 902 respectively. After receiving the holding signal, the first motor 701, the cylinder 802, and the second motor 902 control the lateral driving mechanism 7, the vertical lifting mechanism 8, and the sheet material translation mechanism 9 to perform holding work respectively, and transmit the standby signal to the warning lamp 10. After receiving the standby signal, the warning lamp 10 performs standby work;

[0116] The holding operation means that after the grinding head 3 has accurately moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, in order to prevent its position from drifting or shifting during the polishing and grinding process, each motion execution mechanism enters a control mode of locking or maintaining the current state, so as to ensure the stability and accuracy of the grinding operation. Specifically, the first motor 701 stops rotating but maintains a certain braking torque to ensure that the first lead screw 703 does not rotate, thereby keeping the linear position of the moving frame 705 unchanged in the horizontal direction; the moving frame 705 is guided and restricted from lateral movement through the sliding fit structure between the first slider 706 and the first slide rail 707, further enhancing the positioning stability. At the same time, the air cylinder 802 keeps the telescopic rod 803 in a static state through the output of a constant air pressure, so that the connecting frame 804 driven and connected stably supports the polishing and grinding motor 2, preventing the grinding head 3 from jittering or displacing in the vertical direction; the second motor 902 also enters the locking mode, keeping the position of the second lead screw 904 unchanged, and maintaining the fixation of the mounting plate 4 in the horizontal direction through the moving block 906, so that the three-axis coordinates of the entire grinding system are stably locked, providing precise spatial positioning support for the subsequent polishing operation.

[0117] The standby operation means that after the grinding head 3 has reached the target position and each motion mechanism of the equipment enters the holding state, the central processor 6 sends a standby signal to the warning light 10, making it enter the low-power consumption or prompt display state, so that the system operator can identify that the equipment is currently in the state of "ready to execute grinding" or "waiting to trigger the grinding task". Specifically, the warning light 10 drives its internal control circuit to start a specified display mode, such as keeping the green light on constantly, the blue light flashing or the mute state, etc., by receiving the standby signal from the central processor 6, to visually identify that the equipment is in the static monitoring state. At this time, although the grinding system has not started active processing, the central processor 6 still maintains smooth data interaction with the lateral displacement sensing module 11, the vertical displacement sensing module 12, and the workpiece displacement sensing module 13 of each sensor, listens for displacement changes or abnormal signals in real time, and at the same time maintains the current pose state of each mechanism unchanged. Once a grinding deviation is detected or the start signal of the next stage is received, the system can quickly respond, switch states, and enter the grinding correction or active processing process.

[0118] When PD > PD yuzhiWhen the grinding head 3 has not moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, an abnormal signal is generated. After receiving the abnormal signal, the central processor 6 generates an adjustment signal and a warning signal, and transmits the adjustment signal to the first motor 701, the cylinder 802, and the second motor 902 respectively. After receiving the adjustment signal, the first motor 701, the cylinder 802, and the second motor 902 respectively control the lateral drive mechanism 7, the vertical lifting mechanism 8, and the sheet material translation mechanism 9 to perform adjustment work, and transmit the warning signal to the warning lamp 10. After receiving the warning signal, the warning lamp 10 performs a warning operation.

[0119] The adjustment work means that when it is detected that the grinding head 3 has not moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet material, after receiving the abnormal signal, the central processor 6 sends an adjustment signal to the three actuators to correct the current deviation and make the grinding head accurately align again. Specifically, after receiving the adjustment signal, the first motor 701 starts to operate, drives the gears inside the first gear transmission box 702 to mesh, transmits the power to the first lead screw 703, and drives the lead screw to rotate; the first lead screw 703 is in threaded cooperation with the moving frame 705, so that it performs fine adjustment movement in the horizontal direction, and at the same time, under the sliding guiding action of the first slider 706 and the first slide rail 707, it maintains stable movement and anti-interference. At the same time, after receiving the signal, the cylinder 802 adjusts its output air pressure, drives the telescopic rod 803 to extend or retract, and drives the connecting frame 804 and the polishing and grinding motor 2 and the grinding head 3 fixed thereon to perform fine adjustment of the position in the vertical direction; in addition, the second motor 902 drives the second gear transmission box 903 to drive the second lead screw 904 to rotate, and combined with the threaded transmission relationship with the moving block 906, realizes the fine translation of the mounting plate 4 in the horizontal direction, so that the workpiece cooperates with the grinding head to synchronously correct the overall spatial attitude. The three mechanisms complete the automatic fine adjustment of the grinding position through coordinated cooperation under the unified control of the central processor 6, ensuring that the grinding head 3 quickly and accurately returns to the target processing area.

[0120] The warning work refers to that after the grinding head 3 fails to align in time and triggers an abnormal signal, the central processor 6 sends a warning signal to the warning light 10, enabling the device to send a warning to the operator visually or audibly, indicating that the current state of the device is abnormal and manual attention or intervention is required. After receiving the warning signal, the internal control module of the warning light 10 drives the high-brightness red warning light to flash or the buzzer to sound, indicating that the system determines that the grinding head 3 fails to align with the target position, and there may be accuracy risks or displacement faults. In this state, the central processor 6 still continuously interacts with the lateral displacement sensing module 11, the vertical displacement sensing module 12, and the workpiece displacement sensing module 13 to obtain displacement change data and real-time feedback adjustment results; if it still cannot return to the normal deviation range after multiple adjustments, the warning light 10 can maintain a continuous alarm state until manual intervention is performed or the system enters the safety shutdown logic to ensure the safe operation of the device, reliable product quality, and efficient fault handling. The warning work is not only a reminder mechanism for abnormal states but also an important guarantee link for the safe operation and closed-loop control system of the entire system.

[0121] The above formulas are all dimensionless and take their numerical values for calculation. The formulas are obtained by collecting a large amount of data for software simulation to get a formula closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation.

[0122] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0123] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0124] In several embodiments provided in the present application, it should be understood that the disclosed overall system, device, and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another overall system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0125] The unit described as a separate component may or may not be physically separated, and the component shown as a unit may or may not be a physical unit, that is, it may be located in one place or may be distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0126] In addition, each functional unit in various embodiments of the present application may be integrated into one processing unit, may exist separately as individual physical units, or two or more units may be integrated into one unit.

[0127] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A decorative panel curved surface polishing and grinding device, comprising a mounting frame (1), a grinding head (3), a polishing and grinding motor (2), a mounting plate (4) and a clamping and fixing mechanism (5), characterized in that: A central processing unit (6) is provided on one side of the mounting frame (1); a lateral driving mechanism (7) and a vertical lifting mechanism (8) are provided on the top of the mounting frame (1); the lateral driving mechanism (7) includes a moving frame (705); a plate translation mechanism (9) is provided on the bottom of the mounting frame (1); the plate translation mechanism (9) includes a base (901); and a warning light (10) for early warning is provided on the top of the central processing unit (6); Also includes: A lateral displacement sensing module (11), arranged on the top of the mounting frame (1), and used for generating a lateral displacement coefficient; A vertical displacement sensing module (12), arranged on one side of the mobile frame (705), is used to generate a vertical displacement coefficient; A workpiece displacement sensing module (13), arranged on the inner side wall of the base (901), for generating a workpiece translation deviation index; The generated lateral offset coefficient, vertical offset coefficient and workpiece translation deviation index are comprehensively analyzed by a central processing unit (6) to determine whether the grinding head (3) has moved to a target polishing and grinding working position on the curved surface of the decorative panel sheet, and the working states of the lateral driving mechanism (7), the vertical lifting mechanism (8), the sheet translation mechanism (9) and the warning light (10) are controlled according to the determination result.

2. The decorative panel curved surface polishing and grinding equipment according to claim 1, characterized in that: The transverse drive mechanism (7) further comprises a first motor (701), a first gear transmission box (702), a first screw rod (703), a first support plate (704), a first slider (706) and a first slide rail (707); the output shaft of the first motor (701) is drivingly connected to the input shaft of the first gear transmission box (702); one side of the first gear transmission box (702) is fixedly connected to one side of the mounting frame (1); the output shaft of the first gear transmission box (702) is drivingly connected to one end of the first screw rod (703); the other end of the first screw rod (703) is connected to the first guide rail (707) via a bearing. One side of the support plate (704) is movably connected, the bottom of the first support plate (704) is fixedly connected to the top of the mounting frame (1), the outer wall of the first screw rod (703) is transmission-connected to the inner wall of the movable frame (705), the inner wall of the movable frame (705) is fixedly connected to one side of the first slider (706), the outer wall of the first slider (706) is slidably connected to the inner wall of the first slide rail (707), one side of the first slide rail (707) is fixedly connected to one side of the mounting frame (1), and the transverse drive mechanism (7) is used to control the grinding head (3) to perform linear movement in the horizontal direction.

3. The decorative panel curved surface polishing and grinding equipment according to claim 2, characterized in that: The vertical lifting mechanism (8) comprises a cylinder mounting block (801), a cylinder (802), a telescopic rod (803) and a connecting frame (804); one side of the cylinder mounting block (801) is fixedly connected to one side of the moving frame (705); the top of the cylinder mounting block (801) is fixedly connected to the bottom of the cylinder (802); the output shaft of the cylinder (802) is drivingly connected to the input shaft of the telescopic rod (803); the output shaft of the telescopic rod (803) is fixedly connected to the top of the connecting frame (804); the inner side wall of the connecting frame (804) is fixedly connected to the outer wall of the polishing motor (2); and the vertical lifting mechanism (8) is used to control the polishing head (3) to perform linear movement in the vertical direction.

4. The decorative panel curved surface polishing and grinding equipment according to claim 3, characterized in that: The plate translation mechanism (9) further comprises a second motor (902), a second gear transmission box (903), a second screw rod (904), a second support plate (905), a moving block (906), a second slide rail (907) and a second slider (908); the bottom of the second motor (902) is fixedly connected to the top of the base (901); the output shaft of the second motor (902) is transmission-connected to the input shaft of the second gear transmission box (903); the output shaft of the second gear transmission box (903) is transmission-connected to one end of the second screw rod (904); the other end of the second screw rod (904) is movably connected to one side of the second support plate (905) via a bearing; The bottom of the second gear transmission box (903) and the bottom of the second support plate (905) are both fixedly connected to the top of the base (901); the outer wall of the second screw rod (904) is transmission-connected to the inner wall of the moving block (906); the top of the moving block (906) is fixedly connected to the bottom of the mounting plate (4); the bottom of the second slide rail (907) is fixedly connected to the top of the base (901); the outer wall of the second slide rail (907) is slidably connected to the inner wall of the second slider (908); the top of the second slider (908) is fixedly connected to the bottom of the mounting plate (4); and the plate translation mechanism (9) is used to control the mounting plate (4) to perform linear movement in a horizontal direction.

5. The decorative panel curved surface polishing and grinding equipment according to claim 4, characterized in that: The output end of the central processing unit (6) is electrically connected to the input end of the polishing motor (2), the input end of the first motor (701), the input end of the cylinder (802), the input end of the second motor (902) and the input end of the warning light (10), respectively; the output end and input end of the lateral displacement sensing module (11), the output end and input end of the vertical displacement sensing module (12) and the output end and input end of the workpiece displacement sensing module (13) are electrically connected to the input end and output end of the central processing unit (6), respectively.

6. The decorative panel curved surface polishing and grinding equipment according to claim 5, characterized in that: The acquisition logic of the lateral offset coefficient is: S1. The actual linear moving distance of the moving frame (705) in the horizontal direction at different times during the polishing process is obtained through the lateral displacement sensing module (11), and calibrated as represents the actual linear moving distance of the moving frame (705) in the horizontal direction at time m during the polishing process, m=1, 2, 3, 4, ..., g, where g is a positive integer; S2. The preset linear moving distance of the moving frame (705) in the horizontal direction at different times during the polishing process is obtained by the central processor (6) and calibrated as S3. Calculate the lateral offset coefficient. The calculation expression is: Where LDC is the lateral deviation coefficient.

7. The decorative panel curved surface polishing and grinding equipment according to claim 6, characterized in that: The acquisition logic of the vertical offset coefficient is: S1. The actual linear moving distance of the grinding head (3) in the vertical direction at different moments during the polishing process is obtained in real time through the vertical displacement sensing module (12), and calibrated as represents the actual linear moving distance of the grinding head (3) in the vertical direction at time m during the polishing process, m=1, 2, 3, 4, ..., g, where g is a positive integer; S2. The preset linear moving distance of the grinding head (3) in the vertical direction at different times during the polishing process is obtained by the central processor (6) and calibrated as S3. Calculate the vertical offset coefficient. The calculation expression is: Where VDC is the vertical deviation coefficient.

8. The decorative panel curved surface polishing and grinding equipment according to claim 7, characterized in that: The acquisition logic of the workpiece translation deviation index is: S1. The actual linear moving distance of the mounting plate (4) in the horizontal direction at different times during the polishing process is obtained in real time through the workpiece displacement sensing module (13), and calibrated as represents the actual linear movement distance of the mounting plate (4) in the horizontal direction at time m during the polishing process, m=1, 2, 3, 4, ..., g, where g is a positive integer; S2. The preset linear moving distance of the mounting plate (4) in the horizontal direction at different times during the polishing process is obtained by the central processor (6) and calibrated as S3. Calculate the workpiece translation deviation index. The calculation expression is: Where TDI is the workpiece translation deviation index.

9. The decorative panel curved surface polishing and grinding equipment according to claim 8, characterized in that: The central processing unit (6) performs a comprehensive analysis on the generated lateral offset coefficient, vertical offset coefficient and workpiece translation deviation index to generate a judgment coefficient. The specific calculation formula is as follows: Where PD is the judgment coefficient, ω1, ω2 and ω3 are the preset proportional coefficients of the lateral deviation coefficient LDC, the vertical deviation coefficient VDC and the workpiece translation deviation index TDI, respectively, and ω1, ω2 and ω3 are all greater than 0.

10. The decorative panel curved surface polishing and grinding equipment according to claim 9, characterized in that: Set the preset judgment coefficient reference threshold as PD yuzhi The calculated judgment coefficient PD and the preset judgment coefficient reference threshold PD are compared by the central processing unit (6). yuzhi A comparison is performed, and according to the comparison result, it is determined whether the grinding head (3) has moved to the target polishing and grinding working position on the curved surface of the decorative panel sheet, and according to the determination result, the working states of the lateral driving mechanism (7), the vertical lifting mechanism (8), the sheet translation mechanism (9) and the warning light (10) are controlled. The specific determination is as follows: When PD≤PD yuzhi When the polishing head (3) moves to the target polishing and grinding working position on the curved surface of the decorative panel sheet, a normal signal is generated. After receiving the normal signal, the central processing unit (6) generates a holding signal and a standby signal, and transmits the holding signal to the first motor (701), the cylinder (802) and the second motor (902) respectively. After receiving the holding signal, the first motor (701), the cylinder (802) and the second motor (902) respectively control the lateral driving mechanism (7), the vertical lifting mechanism (8) and the plate translation mechanism (9) to perform the holding work, and transmits the standby signal to the warning light (10). After receiving the standby signal, the warning light (10) performs the standby work; When PD>PD yuzhi When the grinding head (3) does not move to the target polishing and grinding working position on the curved surface of the decorative panel sheet, an abnormal signal is generated. After receiving the abnormal signal, the central processing unit (6) generates an adjustment signal and a warning signal, and transmits the adjustment signal to the first motor (701), the cylinder (802) and the second motor (902) respectively. After receiving the adjustment signal, the first motor (701), the cylinder (802) and the second motor (902) respectively control the lateral drive mechanism (7), the vertical lifting mechanism (8) and the plate translation mechanism (9) to perform adjustment work, and transmit the warning signal to the warning light (10). After receiving the warning signal, the warning light (10) performs a warning work.

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