A kind of hard brittle plate mixed line processing edge collapse prevention edge grinding production line and method

Abstract

The application relates to the field of hard and brittle plate processing technology and discloses a hard and brittle plate mixed line processing edge collapse prevention and edge grinding production line and method, which comprises a rack assembly, a left cross beam assembly, a right cross beam assembly, a pressing beam assembly, a cooling system and a multistage array grinding execution module. The upper side of one side of the rack assembly is fixed at the bottom end of the left cross beam assembly, the upper side of the other side of the rack assembly is fixed at the bottom end of the right cross beam assembly, the left cross beam assembly and the right cross beam assembly are symmetrically arranged above the rack assembly, the inside of the rack assembly is fixedly connected to the outside of the cooling system, and the upper side of the rack assembly is fixedly connected to the bottom end of the pressing beam assembly. The rack assembly is arranged to stably bear the main shaft driving motor, so that the real-time monitoring and active intervention protection effect of the main shaft system are realized. In the cutting process, the edge collapse risk caused by overload or temperature rise is significantly reduced by relying on data driving to realize active protection instead of relying on artificial experience judgment.

Description

Technical Field

[0001] This invention relates to the field of hard and brittle sheet metal processing technology, specifically to a mixed-line processing production line and method for preventing edge chipping and grinding of hard and brittle sheets. Background Technology

[0002] Hard and brittle materials such as ceramics, glass, semiconductor wafers, and stone are widely used in electronic packaging, architectural decoration, and precision mechanical parts due to their high hardness, high wear resistance, and good chemical stability. Edge processing of these materials typically requires the use of edge grinding equipment, and the quality of this processing directly determines the subsequent assembly accuracy and product lifespan.

[0003] Existing anti-chipping edge grinding devices for mixed processing of hard and brittle plates mostly rely on operators' own experience. During the grinding process, the spindle load fluctuates in real time with factors such as material removal, grinding wheel wear, and cooling conditions, which leads to an increased product scrap rate when overload or abnormal temperature rise occurs. Summary of the Invention

[0004] This invention provides a production line and method for anti-chipping and edge grinding in mixed processing of hard and brittle materials, which solves the problem that existing anti-chipping and edge grinding devices for mixed processing of hard and brittle materials rely heavily on operators' own experience, leading to increased product scrap rates when overload or abnormal temperature rise occurs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a production line for mixed-line processing of hard and brittle plates with anti-chipping and edge-grinding capabilities, comprising a frame assembly, a left crossbeam assembly, a right crossbeam assembly, a pressure beam assembly, a cooling system, and a multi-stage array grinding execution module. The frame assembly is internally fixedly connected to the outside of the cooling system, and the frame assembly is fixedly connected to the bottom of the pressure beam assembly. The frame assembly is internally installed outside the multi-stage array grinding execution module. The multi-level array grinding execution module includes a spindle drive motor, and a high-frequency Hall current sensor and a torque monitoring module are fixedly connected to the spindle drive motor. The high-frequency Hall current sensor and torque monitoring module are used to ensure the spindle drive motor's all-round perception, precise control and intelligent protection. The internal structure of the frame assembly is equipped with an adaptive flexible transmission module and an adaptive adjustment mechanism, an intelligent central control module, and a sensing and interactive input module. The adaptive flexible transmission module and the adaptive adjustment mechanism are used to achieve physical adaptive centering and clamping of hard and brittle plates of different widths without manual wheel operation. The intelligent central control module and the perception and interaction input module are used to support the closed-loop neural center of the entire process of perception, decision-making, execution and feedback of the production line.

[0006] By adopting the above technical solutions, the frame assembly, as the core rigid load-bearing base of the entire array-type precision grinding equipment, adopts a high-strength overall frame structure, providing a unified installation benchmark and load transmission foundation for all functional systems of the machine.

[0007] Preferably, the multi-stage array grinding execution module further includes a grinding wheel, one end of which is fixedly connected to the output end of the spindle drive motor. The spindle drive motor is used to drive the grinding wheel to rotate. During the rotation, the grinding wheel is used to grind hard and brittle materials. The spindle drive motor is fixedly connected to a cooling system, which is used to reduce the temperature generated after the spindle drive motor runs.

[0008] Preferably, the frame assembly is fixed above one side of the bottom end of the left crossbeam assembly, and the frame assembly is fixed above the bottom end of the right crossbeam assembly on the other side. The left crossbeam assembly and the right crossbeam assembly are symmetrically installed above the frame assembly.

[0009] Preferably, the adaptive flexible transmission module includes a main drive servo motor, which is externally fixedly connected to the inside of the frame assembly. The output end of the main drive servo motor is provided with a drive track, which is internally located outside the frame assembly. The bottom end of the drive track is fixedly connected to a support frame, which is externally slidably connected to the inside of the frame assembly. The support frame is used to drive the hard and brittle plate to slide smoothly.

[0010] Preferably, the adaptive adjustment mechanism includes a high-torque variable-track servo motor, which is externally fixedly connected to the top of the frame assembly. A bidirectional synchronous ball screw pair is fixedly connected to the output end of the high-torque variable-track servo motor. A main drive system is externally fixedly connected to the bidirectional synchronous ball screw pair. A movable-side conveyor track and a fixed-side conveyor track are externally arranged on the main drive system. The movable-side and fixed-side conveyor tracks are externally slidably connected inside a heavy-duty linear guide. The frame assembly supports the movable-side and fixed-side conveyor tracks for sliding, and also supports the heavy-duty linear guide for fixation. The movable-side and fixed-side conveyor tracks drive the hard and brittle sheet metal to move, and the heavy-duty linear guide limits the range of movement of the hard and brittle sheet metal.

[0011] Preferably, one end of the frame assembly is fixedly connected to the bottom end of the adaptive adjustment mechanism, and the other end of the frame assembly is fixedly connected to the bottom end of the sensing and interactive input module. The intelligent central control module is used as the nerve center to coordinate the overall pre-scheduling and the underlying closed-loop control. The sensing and interactive input module is used as the front-end sensing port to ensure that the central control system obtains processing data and incoming material characteristics.

[0012] A method for an anti-chipping and grinding production line for mixed processing of hard and brittle plates includes the following steps: S1. Through the sensing and interactive input module, the operator inputs the material, shape and smoothness requirements of the board. At the same time, the laser displacement sensor and the visual contour scanner obtain the actual thickness, width and edge contour of the board in a non-contact manner and transmit the data to the intelligent central control module. S2. The intelligent central control module calls the process expert library and outputs global feedforward parameters based on material, profile, thickness and width, including the reference value of the conveyor track linear speed, the speed of the main shaft drive motor at each level, the target spacing coordinates of the double-sided conveyor track, and the pre-positioning coordinates of the cutting end face of each level of grinding wheel. S3. Before processing, the intelligent central control module issues commands in parallel to drive the high-torque variable track servo motor and the bidirectional synchronous ball screw pair, so that the moving side conveyor belt moves along the heavy-duty linear guide to the target spacing, completes the centering and clamping, drives the spindle feed mechanism at each stage, so that the spindle drive motor and grinding wheel move to the predetermined position coordinate, allocates the cutting allowance, and sets the main drive servo motor to drive the drive belt to pull the plate into the grinding area with the linear speed reference value. S4. During grinding, the high-frequency Hall current sensor and torque monitoring module acquire the current and torque signals of the spindle drive motor in milliseconds, and the intelligent central control module extracts the effective characteristic current value through Kalman filtering. S5, the intelligent central control module compares the effective characteristic current value with the warning threshold and the safety upper limit threshold, and executes a graded response. When the current is below the warning threshold, the base speed remains unchanged. When the current reaches the warning threshold but is below the upper limit, the drive track speed is adjusted in the opposite direction. The speed is gradually reduced as the current increases to unload the load. When the current reaches or exceeds the upper limit, the drive track is forced to reduce the speed to a safe low speed value, and the overload grinding wheel is simultaneously made to elastically retract at the micron level. When the physical limit is exceeded, an emergency stop is triggered, the main shaft brake is engaged, the track stops rotating, and an alarm is triggered. S6. After intervention, when the effective characteristic current value falls below the safe recovery threshold and stabilizes for the set time, the system uses an S-shaped acceleration and deceleration curve to drive the track to smoothly climb from the safe low speed value to the initial linear speed reference value, thus completing the load recovery.

[0013] This invention provides a production line and method for preventing edge chipping and grinding in mixed-line processing of hard and brittle sheet metal. It has the following beneficial effects: 1. This invention provides a stable frame assembly to support the spindle drive motor, which drives the grinding wheel to rotate and remove material. A cooling system with circulating cooling medium absorbs heat from the motor to maintain thermal balance. A high-frequency Hall current sensor and torque monitoring module are installed outside the spindle drive motor to achieve real-time monitoring and active intervention protection for the spindle system. During the cutting process, manual experience judgment is no longer relied upon, but data-driven active protection is achieved, significantly reducing the risk of edge chipping due to overload or temperature rise.

[0014] 2. This invention supports a main drive servo motor and a high-torque variable-track servo motor in a frame assembly, and provides sliding guidance for the support frame. The main drive servo motor drives the drive track to push the hard and brittle plate forward. The high-torque variable-track servo motor drives the bidirectional synchronous ball screw pair to rotate, which drives the main transmission system to smoothly clamp and guide the plate along the heavy-duty linear guide rail. This coordinated transmission ensures that the plate receives stable support and precise guidance when entering the multi-stage array grinding execution module, thereby achieving the effect of being able to withstand grinding force without lateral displacement or vibration. This avoids the disadvantages of slippage or deflection caused by frictional pushing with a single track, and utilizes the high rigidity and high precision of the heavy-duty linear guide rail to eliminate the plate's sway in advance before entering the grinding zone, so that the plate has a correct posture and balanced force when entering the multi-stage array grinding execution module. From the perspective of motion support, it effectively suppresses the risk of edge chipping caused by unstable positioning.

[0015] 3. This invention, by setting up a sensing and interactive input module, receives process requirements input manually and, in conjunction with sensor scanning, obtains the actual thickness, width, and edge contour of the board material. The data is then transmitted to the intelligent central control module in real time, thereby forming a closed-loop anti-chipping linkage control effect from front-end sensing, expert decision-making, to execution feedback. This breaks away from the traditional passive mode of relying on operator experience to make adjustments on the fly, upgrading anti-chipping control from manual intervention to an endogenous system capability. It is especially suitable for rapid switching and stable processing in multi-variety mixed production line scenarios. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the grinding wheel of the present invention; Figure 3 This is a schematic diagram of the rack assembly of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 for Figure 3 Enlarged view of point C in the middle; Figure 7 for Figure 3 Enlarged diagram of point D in the middle.

[0017] The components include: 1. Frame assembly; 2. Left crossbeam assembly; 3. Right crossbeam assembly; 4. Pressure beam assembly; 5. Cooling system; 6. Multi-stage array grinding execution module; 7. Adaptive flexible transmission module; 8. Adaptive adjustment mechanism; 9. Intelligent central control module; 10. Sensing and interactive input module. 61. Spindle drive motor; 62. Grinding wheel; 63. High-frequency Hall current sensor; 64. Torque monitoring module; 71. Main drive servo motor; 72. Drive track; 73. Support frame; 81. High-torque variable-track servo motor; 82. Bidirectional synchronous ball screw pair; 83. Moving-side conveyor track; 84. Fixed-side conveyor track; 85. Heavy-duty linear guide; 86. Main drive system. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a production line for anti-chipping and grinding of hard and brittle sheet metal mixed-line processing, including a frame assembly 1, a left crossbeam assembly 2, a right crossbeam assembly 3, a pressure beam assembly 4, a cooling system 5, and a multi-level array grinding execution module 6. The frame assembly 1 is internally fixedly connected to the outside of the cooling system 5, and the frame assembly 1 is fixedly connected to the bottom of the pressure beam assembly 4. The frame assembly 1 is internally installed on the outside of the multi-level array grinding execution module 6. The multi-stage array grinding execution module 6 includes a spindle drive motor 61. A high-frequency Hall current sensor 63 and a torque monitoring module 64 are externally fixed to the spindle drive motor 61. The high-frequency Hall current sensor 63 and the torque monitoring module 64 are used to ensure the spindle drive motor 61's all-round perception, precise control and intelligent protection. The internal components of the frame assembly 1 include an adaptive flexible transmission module 7, an adaptive adjustment mechanism 8, an intelligent central control module 9, and a sensing and interactive input module 10. The adaptive flexible transmission module 7 and the adaptive adjustment mechanism 8 are used to achieve physical adaptive centering and clamping of hard and brittle plates of different widths without manual wheel operation. The intelligent central control module 9 and the sensing and interaction input module 10 are used to support the closed-loop neural center of the entire process of sensing, decision-making, execution and feedback of the production line.

[0020] Specifically, the frame assembly 1 is used to support and fix the left crossbeam assembly 2, the right crossbeam assembly 3, and the pressure beam assembly 4. The left crossbeam assembly 2, the right crossbeam assembly 3, and the pressure beam assembly 4 provide a precise mounting and positioning surface and rigid support for the multi-stage array grinding execution module 6, ensuring that all grinding heads remain stable and do not deform during high-speed rotation and force cutting. At the same time, the left crossbeam assembly 2, the right crossbeam assembly 3, and the pressure beam assembly 4 carry the conveyor belt and clamping mechanism in the multi-stage array grinding execution module 6 and the adaptive flexible transmission module 7, ensuring that hard and brittle plates are flat and supported during the conveying process. The frame assembly 1 is also used to support and fix the cooling system 5, so that the cooling system 5 can absorb and remove the heat generated by the spindle drive motor 61 during operation. After the multi-stage array grinding execution module 6 and the adaptive flexible transmission module 7 are put into operation, they ensure that the hard and brittle plate remains in close contact with the reference surface when the huge cutting force is generated during high-speed grinding, without warping, slippage, or high-frequency vibration. This eliminates the risk of edge chipping due to uneven force caused by unstable positioning from the source. The intelligent central control module 9 and the sensing and interactive input module 10 are used to ensure that the equipment completes the track change and alignment, grinding head pre-positioning and speed distribution before the grinding begins, completely replacing the traditional manual wheel turning and experience trial and error, and realizing the rapid switching without stopping when producing multiple specifications on mixed lines.

[0021] Please see the appendix Figure 1 and attached Figure 2 The multi-stage array grinding execution module 6 also includes a grinding wheel 62. One end of the grinding wheel 62 is fixedly connected to the output end of the spindle drive motor 61. The spindle drive motor 61 is used to drive the grinding wheel 62 to rotate. During the rotation, the grinding wheel 62 is used to grind hard and brittle plates. The spindle drive motor 61 is fixedly connected to the cooling system 5. The cooling system 5 is used to reduce the temperature generated after the spindle drive motor 61 runs. The upper side of one side of the frame assembly 1 is fixed to the bottom end of the left crossbeam assembly 2, and the upper side of the other side of the frame assembly 1 is fixed to the bottom end of the right crossbeam assembly 3. The left crossbeam assembly 2 and the right crossbeam assembly 3 are symmetrically installed on the upper side of the frame assembly 1.

[0022] Specifically, the frame assembly 1 is used to support and fix the spindle drive motor 61, which in turn supports the rotation of the grinding wheel 62. The spindle drive motor 61 also supports and fixes the high-frequency Hall current sensor 63 and the torque monitoring module 64, and the cooling system 5. During operation, the cooling system 5 reduces the temperature of the spindle drive motor 61. The spindle drive motor 61, which supports the high-frequency Hall current sensor 63 and the torque monitoring module 64, continuously drives the grinding wheel 62 to grind specific areas of the hard and brittle material. During operation, the cooling system 5 contains flowing liquid that absorbs the heat generated by the spindle drive motor 61, thus cooling it down. Simultaneously, the high-frequency Hall current sensor 63 and the torque monitoring module 64 are used for real-time sensing and intelligent intervention of the spindle drive motor 61.

[0023] Please see the appendix Figure 3 - Appendix Figure 5 The adaptive flexible transmission module 7 includes a main drive servo motor 71, which is externally fixedly connected to the inside of the frame assembly 1. A drive track 72 is provided at the output end of the main drive servo motor 71, and is internally located outside the frame assembly 1. A support frame 73 is fixedly connected to the bottom end of the drive track 72, and is externally slidably connected to the inside of the frame assembly 1. The support frame 73 is used to drive the hard and brittle plate material to slide smoothly. The adaptive adjustment mechanism 8 includes a high-torque variable-track servo motor 81, which is externally fixedly connected to the top of the frame assembly 1. A bidirectional... The synchronous ball screw pair 82 is externally fixedly connected to the main drive system 86. The main drive system 86 is externally provided with a movable side conveyor track 83 and a fixed side conveyor track 84. The movable side conveyor track 83 and the fixed side conveyor track 84 are externally slidably connected inside the heavy-duty linear guide rail 85. The frame assembly 1 is used to support the movable side conveyor track 83 and the fixed side conveyor track 84 to slide, and the frame assembly 1 is used to support the heavy-duty linear guide rail 85 for fixation. The movable side conveyor track 83 and the fixed side conveyor track 84 are used to drive the hard and brittle plate to move, and the heavy-duty linear guide rail 85 is used to limit the range of movement of the hard and brittle plate.

[0024] Specifically, the frame assembly 1 supports the stable operation of the main drive servo motor 71 and the high-torque variable track servo motor 81, and also supports the sliding of the support frame 73. Simultaneously, the main drive servo motor 71 drives the drive track 72 to move, and the frame assembly 1 supports the movement of the drive track 72. Furthermore, the high-torque variable track servo motor 81 drives the bidirectional synchronous ball screw pair 82 to rotate, and the bidirectional synchronous ball screw pair 82 consists of two screw rods. These two screw rods then drive the two main drive systems 86 to rotate, and the two main drive systems 86 drive the movable side conveyor track 83 and the fixed side conveyor track 84 to move within the heavy-duty linear guide rail 85. When the equipment is needed, the hard and brittle plate is first placed through the support frame 71... 3. The internal locking structure is fixed, the main drive servo motor 71 is started, and the main drive servo motor 71 drives the drive track 72 to move under the support of the frame assembly 1. At the same time, the drive track 72 will drive the support frame 73 to move synchronously during the movement, and the hard and brittle plate on the support frame 73 will continue to move under the drive of the movable side conveyor track 83 and the fixed side conveyor track 84. The high torque variable track servo motor 81 drives the bidirectional synchronous ball screw pair 82 to rotate synchronously with the main transmission system 86. Then, the main transmission system 86 is used to drive the movable side conveyor track 83 and the fixed side conveyor track 84 to move stably with the assistance of the heavy-duty linear guide rail 85, so that the hard and brittle plate will not be displaced by the grinding of the multi-stage array grinding execution module 6 during the movement.

[0025] Please see the appendix Figure 3 and attached Figure 6 Appendix Figure 7 One end of the frame assembly 1 is fixedly connected to the bottom of the adaptive adjustment mechanism 8, and the other end of the frame assembly 1 is fixedly connected to the bottom of the sensing and interactive input module 10. The intelligent central control module 9 is used as the nerve center to coordinate the overall pre-scheduling and the underlying closed-loop control. The sensing and interactive input module 10 is used as the front-end sensing port to ensure that the central control system obtains processing data and incoming material characteristics.

[0026] Specifically, the rack assembly 1 is used to support and fix the intelligent central control module 9, and the rack assembly 1 is also used to support and fix the sensing and interactive input module 10. Meanwhile, the intelligent central control module 9 is built into an independent high-protection electrical control cabinet, mainly composed of a high-end industrial control computer, a high-speed data acquisition card, and a storage medium containing a "multi-material edge grinding process expert library". It also includes various servo drives and frequency converters that communicate with the main controller in real time via the high-speed industrial Ethernet bus EtherCAT. This module receives data from the front-end sensing module, calls the expert knowledge base to generate and distribute global parameters. During the formal processing, it processes the real-time feedback signal of the high-frequency current sensor, and sends a microsecond-level speed reduction command to the drive servo motor or a retraction command to the grinding head floating push rod, thereby realizing the physical closed-loop linkage control of edge chipping prevention. Furthermore, the perception and interaction input module 10 mainly consists of a human-machine interface, a laser displacement sensor, and a visual contour scanner. The human-machine interface is used to receive the processing target input by the operator, including the material type of the board, the surface finish of the target edge, and the expected chamfer size. The laser contour sensor and photoelectric ranging component are installed at the feeding end of the entire line. Before the board enters the processing area, they scan and obtain its actual thickness, precise width, and initial edge contour features in a non-contact manner. These data are not only used for physical collision avoidance, but also serve as the direct basis for triggering the pre-scheduling instructions of the expert database.

[0027] A method for a production line for preventing edge chipping and grinding of hard and brittle sheet metal mixed processing includes the following steps; S1. Through the sensing and interaction input module 10, the operator inputs the material, shape and smoothness requirements of the board. At the same time, the laser displacement sensor and the visual contour scanner obtain the actual thickness, width and edge contour of the board in a non-contact manner and transmit the data to the intelligent central control module 9. S2, the intelligent central control module 9 calls the process expert library and outputs global feedforward parameters based on material, profile, thickness and width, including the reference value of the conveyor track linear speed, the speed of the main shaft drive motor 61 at each level, the target spacing coordinates of the double-sided conveyor track, and the pre-positioning coordinates of the cutting end face of the grinding wheel 62 at each level; S3. Before processing, the intelligent central control module 9 issues commands in parallel to drive the high-torque variable track servo motor 81 and the bidirectional synchronous ball screw pair 82, so that the moving side conveyor belt 83 moves along the heavy-duty linear guide rail 85 to the target spacing, completes the centering and clamping, drives the spindle feed mechanism at each stage, so that the spindle drive motor 61 and the grinding wheel 62 move to the predetermined coordinate, allocates the cutting allowance, and sets the main drive servo motor 71 to drive the drive belt 72 to pull the plate into the grinding area with the linear speed reference value. S4. During grinding, the high-frequency Hall current sensor 63 and the torque monitoring module 64 acquire the current and torque signals of the spindle drive motor 61 in milliseconds. The intelligent central control module 9 extracts the effective characteristic current value through Kalman filtering. S5 and the intelligent central control module 9 compare the effective characteristic current value with the warning threshold and the safety upper limit threshold, and execute a graded response. When the current is below the warning threshold, the base speed remains unchanged. When the current reaches the warning threshold but is below the upper limit, the speed of the drive track 72 is adjusted in the opposite direction. The speed is gradually reduced as the current increases to unload the load. When the current reaches or exceeds the upper limit, the drive track 72 is forced to reduce the speed to a safe low speed value, and the overload grinding wheel 62 is simultaneously made to elastically yield at the micron level. When the physical limit is exceeded, an emergency stop is triggered, the main shaft brake is engaged, the track stops rotating, and an alarm is triggered. S6. After intervention, when the effective characteristic current value falls below the safe recovery threshold and stabilizes for the set time, the system uses an S-shaped acceleration and deceleration curve to drive the track 72 to smoothly climb from the safe low speed value to the initial linear speed reference value, thus completing the load recovery.

[0028] Workflow: After the grinding operation starts, the frame assembly 1, as a rigid mounting base, firmly supports the spindle drive motor 61 and provides it with precise positioning support. The motor drives the grinding wheel 62 to rotate continuously, performing material removal processing on specific areas of the hard and brittle plate. At the same time, the cooling system 5, which is fixed to the motor, actively absorbs and removes the heat generated by the spindle drive motor 61 during high-speed operation through its internal circulating cooling medium, ensuring that it is always in a suitable thermal balance state. During the processing, the high-frequency Hall current sensor 63 and the torque monitoring module 64, which are fixed to the outside of the motor, respectively, capture the current dynamics and torque load changes of the spindle drive motor 61 in real time through high-frequency sampling, providing accurate physical sensing data for subsequent intelligent control. This achieves the effect of real-time monitoring and active intervention protection of the spindle system. During the grinding process, it no longer relies on manual experience judgment, but relies on data-driven active protection, significantly reducing the risk of edge chipping caused by overload or temperature rise.

[0029] During equipment operation, the frame assembly 1 serves as a rigid mounting base, providing stable support for both the main drive servo motor 71 and the high-torque variable-track servo motor 81, and providing sliding guidance for the support frame 73. When the main drive servo motor 71 starts, its output drives the drive track 72 to move forward under the support of the frame assembly 1. Simultaneously, the drive track 72 drives the support frame 73, which is fixed to it, to slide synchronously, thus pushing the hard and brittle plate material, which is pre-fixed by the internal locking structure of the support frame 73, forward. At the same time, the high-torque variable-track servo motor 81 drives the bidirectional synchronous ball screw pair 82, composed of two screws, to rotate. This ball screw pair then drives the two main drive systems 86 to rotate synchronously, and the main drive systems 86 then drive the movable... The side conveyor track 83 and the fixed side conveyor track 84 move smoothly along the heavy-duty linear guide rail 85, allowing the plate to continue moving under the clamping and guidance of the movable side conveyor track 83 and the fixed side conveyor track 84. This cooperative transmission mechanism ensures that the hard and brittle plate can withstand the grinding force without lateral displacement or vibration when entering the processing area of ​​the multi-stage array grinding execution module 6. This avoids the disadvantages of slippage or deflection caused by friction pushing with a single track, and utilizes the high rigidity and high precision of the heavy-duty linear guide rail 85 to eliminate the sway of the plate in advance before entering the grinding area. This ensures that the plate is upright and evenly stressed when entering the multi-stage array grinding execution module 6, effectively suppressing the risk of edge chipping caused by unstable positioning from the perspective of motion support.

[0030] During the entire production line operation, the sensing and interactive input module 10 receives processing requirements such as material type, surface finish target, and chamfer dimensions input by the operator through its human-machine interface. Simultaneously, with the help of a laser displacement sensor and a visual contour scanner installed at the loading end, it pre-collects the actual thickness, width, and edge contour features of the sheet material in a non-contact manner before it enters the processing area. This incoming material data is then transmitted in real-time to the intelligent central control module 9. This module is built into an independent, high-protection-level electrical cabinet and relies on its high-end industrial control computer, high-speed data acquisition card, and built-in multi-material edge grinding process expert database to process the received sensing data. Data is mapped and matched to generate and distribute global feedforward parameters. During the actual grinding process, the intelligent central control module 9 processes the real-time feedback signals from the current sensor with a microsecond-level response speed. Based on this, it issues dynamic speed adjustment commands to each servo drive and frequency converter, or issues a small yield command to the floating push rod of the grinding head. This forms a closed-loop anti-breakage linkage control effect from front-end perception, expert decision-making to execution feedback. It gets rid of the traditional passive mode of relying on operator experience to adjust while watching, and upgrades anti-breakage control from manual intervention to system endogenous capability. It is especially suitable for rapid switching and stable processing in multi-variety mixed production line scenarios.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixed-line processing production line for hard and brittle sheet metal with anti-chipping and edge-grinding capabilities, comprising a frame assembly (1), a left crossbeam assembly (2), a right crossbeam assembly (3), a pressure beam assembly (4), a cooling system (5), and a multi-stage array grinding execution module (6), characterized in that, The frame assembly (1) is internally fixedly connected to the outside of the cooling system (5), the frame assembly (1) is fixedly connected to the bottom of the pressure beam assembly (4) on the top, and the frame assembly (1) is internally installed on the outside of the multi-level array grinding execution module (6); The multi-level array grinding execution module (6) includes a spindle drive motor (61), and a high-frequency Hall current sensor (63) and a torque monitoring module (64) are fixedly connected to the spindle drive motor (61). The high-frequency Hall current sensor (63) and the torque monitoring module (64) are used to ensure the all-round perception, precise control and intelligent protection of the spindle drive motor (61). The frame assembly (1) is internally equipped with an adaptive flexible transmission module (7), an adaptive adjustment mechanism (8), an intelligent central control module (9), and a sensing and interactive input module (10). The adaptive flexible transmission module (7) and the adaptive adjustment mechanism (8) are used to achieve physical adaptive centering and clamping of hard and brittle plates of different widths without manual wheel operation. The intelligent central control module (9) and the perception and interaction input module (10) are used to support the closed-loop neural center of the entire process of perception, decision-making, execution and feedback of the production line.

2. The anti-chipping and grinding production line for mixed processing of hard and brittle plates according to claim 1, characterized in that, The multi-level array grinding execution module (6) also includes a grinding wheel (62), one end of which is fixedly connected to the output end of the spindle drive motor (61). The spindle drive motor (61) is used to drive the grinding wheel (62) to rotate. The grinding wheel (62) is used to grind hard and brittle plates during rotation. The spindle drive motor (61) is fixedly connected to the cooling system (5). The cooling system (5) is used to reduce the temperature generated after the spindle drive motor (61) runs.

3. The anti-chipping and grinding production line for mixed processing of hard and brittle plates according to claim 1, characterized in that, The frame assembly (1) is fixed above one side of the bottom end of the left crossbeam assembly (2), and the frame assembly (1) is fixed above the bottom end of the right crossbeam assembly (3) on the other side. The left crossbeam assembly (2) and the right crossbeam assembly (3) are symmetrically installed above the frame assembly (1).

4. The anti-chipping and grinding production line for mixed processing of hard and brittle plates according to claim 1, characterized in that, The adaptive flexible transmission module (7) includes a main drive servo motor (71), which is externally fixedly connected to the inside of the frame assembly (1). The output end of the main drive servo motor (71) is provided with a drive track (72), which is internally located outside the frame assembly (1). The bottom end of the drive track (72) is fixedly connected to a support frame (73), which is externally slidably connected to the inside of the frame assembly (1). The support frame (73) is used to drive the hard and brittle plate to slide smoothly.

5. The anti-chipping and grinding production line for mixed processing of hard and brittle plates according to claim 1, characterized in that, The adaptive adjustment mechanism (8) includes a high-torque variable-track servo motor (81), which is externally fixedly connected to the top of the frame assembly (1). A bidirectional synchronous ball screw pair (82) is fixedly connected to the output end of the high-torque variable-track servo motor (81). A main drive system (86) is externally fixedly connected to the bidirectional synchronous ball screw pair (82). A movable-side conveyor track (83) and a fixed-side conveyor track (84) are externally provided on the main drive system (86). The side conveyor track (83) and the fixed side conveyor track (84) are externally slidably connected inside the heavy-duty linear guide (85). The frame assembly (1) is used to support the sliding of the movable side conveyor track (83) and the fixed side conveyor track (84). The frame assembly (1) is used to support the heavy-duty linear guide (85) for fixation. The movable side conveyor track (83) and the fixed side conveyor track (84) are used to drive the hard and brittle plate to move. The heavy-duty linear guide (85) is used to limit the range of movement of the hard and brittle plate.

6. The anti-chipping and grinding production line for mixed processing of hard and brittle plates according to claim 1, characterized in that, One end of the frame assembly (1) is fixedly connected to the bottom end of the adaptive adjustment mechanism (8), and the other end of the frame assembly (1) is fixedly connected to the bottom end of the sensing and interactive input module (10). The intelligent central control module (9) is used as the nerve center for overall pre-scheduling and bottom closed-loop control. The sensing and interactive input module (10) is used as the front-end sensing port to ensure that the central control system obtains processing data and incoming material characteristics.

7. A method for a production line that prevents edge chipping and grinding during mixed processing of hard and brittle plates, characterized in that, A production line for preventing edge chipping and grinding of mixed hard and brittle sheet metal as described in any one of claims 1-6 includes the following steps: S1. Through the sensing and interactive input module (10), the operator inputs the material, shape and smoothness requirements of the board. At the same time, the laser displacement sensor and the visual contour scanner obtain the actual thickness, width and edge contour of the board in non-contact and transmit the data to the intelligent central control module (9). S2, Intelligent central control module (9) calls the process expert library and outputs global feedforward parameters based on material, profile, thickness and width matching, including the linear speed reference value of the conveyor track, the speed of the main shaft drive motor (61) of each level, the target spacing coordinate of the double-sided conveyor track, and the pre-positioning coordinate of the cutting end face of the grinding wheel (62) of each level; S3. Before processing, the intelligent central control module (9) issues commands in parallel to drive the high-torque variable track servo motor (81) and the bidirectional synchronous ball screw pair (82), so that the moving side conveyor belt (83) moves along the heavy-duty linear guide rail (85) to the target spacing, completes the centering and clamping, drives the spindle feed mechanism at each stage, so that the spindle drive motor (61) and the grinding wheel (62) move to the predetermined position coordinate, allocate the cutting allowance, and set the main drive servo motor (71) to drive the drive belt (72) with the linear speed reference value to pull the plate into the grinding area; S4. During grinding, the high-frequency Hall current sensor (63) and the torque monitoring module (64) collect the current and torque signals of the spindle drive motor (61) in milliseconds. The intelligent central control module (9) extracts the effective characteristic current value through Kalman filtering. S5. The intelligent central control module (9) compares the effective characteristic current value with the warning threshold and the safety upper limit threshold, and performs a graded response. When the current is lower than the warning threshold, the base speed remains unchanged. When the current reaches the warning threshold but is lower than the upper limit, the speed of the drive track (72) is adjusted in the opposite direction. The speed is gradually reduced as the current increases to unload the load. When the current reaches or exceeds the upper limit, the drive track (72) is forced to reduce the speed to a safe low speed value, and the overload grinding wheel (62) is simultaneously made to elastically yield at the micron level. When the physical limit is exceeded, an emergency stop is triggered, the main shaft brake is engaged, the track stops rotating and an alarm is triggered. S6. After intervention, when the effective characteristic current value falls below the safe recovery threshold and stabilizes at the set time, the system drives the track (72) to smoothly climb from the safe low speed value to the initial linear speed reference value using an S-shaped acceleration and deceleration curve, thus completing the load recovery.

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