Crystal grinding machine control system and method

Abstract

The invention relates to the technical field of crystal grinding machines, and discloses a crystal grinding machine control system and method.The crystal grinding machine control system comprises the following steps that a main control mainboard is used for monitoring parameters of a circuit in a grinding machine, and when it is monitored that current or voltage of the circuit is abnormal, the circuit is controlled to disconnect a power source of a servo system; the servo system comprises a plurality of servo motors and encoders; the plurality of servo motors are used for controlling the swinging angle, the rotating surface and the lifting action of the grinding machine on the crystal so as to realize hemispheroid parting processing of the crystal; the encoder is used for monitoring the position state and the speed state of each servo motor in the grinding machine in real time and communicating with the main control mainboard in real time through a pulse signal, a pulse direction signal and an enable signal and an alarm signal of the driver; and the Internet of Things module is used for realizing remote communication connection between the grinding machine and the Internet of Things cloud platform. By integrating the master control module, the servo module, the encoder module and the Internet of Things module, accurate closed-loop control and remote intelligent operation and maintenance of the crystal grinding machining process are achieved.

Description

Technical Field

[0001] This invention relates to the field of crystal grinding machine technology, and more specifically to a crystal grinding machine control system and method. Background Technology

[0002] Currently, in the processing of crystal architectural decorative crafts, to achieve high-quality hemispherical parting, a series of complex and coordinated processing equipment and control technologies are required, mainly involving the following aspects: One approach uses a traditional main control circuit design. Some devices are equipped with simple monitoring equipment to monitor the basic electrical parameters of the grinding equipment. When significant abnormalities such as large fluctuations in current or voltage occur in the circuit, simple relays or other components are used to cut off the power to the servo motor to prevent damage to the equipment due to electrical faults. However, this traditional method has limited functionality, accuracy and response speed in monitoring, and lacks intelligent control logic.

[0003] Secondly, there is the traditional servo motor control method, which generally uses basic circuit connections and simple command control to drive the grinding equipment to perform actions such as tilting, turning, and lifting on crystal architectural decorative crafts, thereby achieving relatively simple processing operations on crystal architectural decorative crafts. However, this control method is insufficient in terms of the accuracy, coordination, and flexibility of the movements, making it difficult to meet the requirements of complex hemispherical parting processing.

[0004] In summary, the first traditional main control circuit design, due to limitations in monitoring and control, cannot promptly detect and address potential electrical problems, easily leading to equipment malfunctions during operation, affecting production progress, and lacking intelligent fault warning and handling mechanisms. The second traditional servo motor control method struggles to achieve precise control of complex movements. For products like crystal architectural decorative crafts, which require high processing precision, it cannot meet the intricate requirements of hemispherical parting machining, resulting in products that do not meet the required shape and dimensional accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a crystal grinding machine control system and method, which integrates a main controller, servo motor, encoder and Internet of Things module to achieve precise closed-loop control and remote intelligent operation and maintenance of the crystal grinding process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A crystal grinding machine control system, comprising: The main control board is used to monitor the parameters of the circuit in the grinder. When an abnormality in the current or voltage of the circuit is detected, the control circuit disconnects the power supply to the servo system. The servo system includes: several servo motors and encoders; Several servo motors are used to control the grinding machine's tilting angle, rotation, and lifting movements on the crystal, so as to achieve the hemispherical parting process of the crystal; The encoder, installed on the servo motor, is used to monitor the position and speed of each servo motor in the grinding machine in real time, and communicates with the main control motherboard in real time through pulse signals, pulse direction signals, driver enable signals and alarm signals. The Internet of Things (IoT) module is used to enable remote communication between the grinder and the IoT cloud platform.

[0007] Furthermore, it also includes: The emergency stop button is used to stop the grinding machine from running in an emergency. The start button is used to start the grinder. The stop button is used to stop the grinder from running. The local / remote switching button is used to switch the control mode of the grinder; A touchscreen is used to display and allow manual remote adjustment of the grinder's operating status and parameter settings.

[0008] Furthermore, it also includes: An air switch is used to connect or disconnect the grinder from the power supply. The electricity meter is connected to the main control motherboard via an RS485 interface and is used to monitor the parameters of the circuit in the grinder in real time. Intermediate relays are used to control AC contactors to cut off the power supply to the servo system when an abnormal current or voltage signal is sent from the main control board. An AC contactor is used to connect or disconnect the power supply to the various servo motors in the grinding machine.

[0009] Furthermore, the main control motherboard is equipped with a three-color indicator light; wherein the three-color indicator light includes: a yellow light, a green light, and a red light; The yellow light indicates that the crystal grinder has started; A green light indicates that the crystal polishing machine is operating normally; A red light indicates an alarm is coming on from the crystal polishing machine.

[0010] The present invention also provides a method for controlling a crystal polishing machine, comprising the following steps: A laser rangefinder is used to measure the height of the rough grinding, fine grinding, and polishing grinding discs in real time, and the height of the rough grinding, fine grinding, and polishing grinding discs is dynamically adjusted to the same horizontal position based on the measurement results. Process parameters are remotely downloaded to the local controller via an IoT cloud platform; the process parameters include swing angle, rotation angle, processing height, retraction amount, slow advance amount, dwell time, swing amplitude, slow advance speed, and flip-plate gap; The crystal hemisphere parting process is controlled according to the process parameter matrix, which is constructed by row × face × parameter set, and each processing face element corresponds to an independent parameter group. Real-time acquisition of pressure values ​​during the fine grinding and polishing stages, and dynamic adjustment of the grinding disc lifting height based on the pressure values; Automatically controls the start and stop of the motors for coarse grinding, fine grinding, fine grinding, and polishing, as well as the movement, swinging, rotation, and lifting actions of the servo motors.

[0011] Furthermore, the step of dynamically adjusting the height of the coarse grinding, fine grinding, and polishing grinding discs includes: The control vehicle moves sequentially above each grinding disc, and the initial distance between the laser rangefinder and the rough grinding, fine grinding, precision grinding, and polishing grinding discs is recorded by the laser rangefinder installed on the vehicle. Using the coarse grinding disc as a reference, the servo motor drivers for fine grinding, fine grinding, and polishing are controlled to adjust the height of the corresponding grinding discs so that the heights of the four grinding discs are consistent.

[0012] Furthermore, the step of real-time acquisition of pressure values ​​during the fine grinding and polishing stages includes: A weighing sensor is installed on the copper mounting rod of the fine grinding and polishing disc; The pressure value is obtained through the analog signal acquisition module, and the amount of grinding disc rise is controlled according to the pressure value.

[0013] Furthermore, the method also includes security protection mechanisms: The three-phase voltage and current are monitored in real time by the electricity meter. When overcurrent, overvoltage or phase loss is detected, the intermediate relay is controlled to cut off the AC contactor, so that the coarse grinding, fine grinding, fine grinding and polishing motors are de-energized. In response to the emergency stop button signal, disconnect all AC contactors to stop the motor from working.

[0014] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects: This invention, through the deep integration of a main control motherboard, servo motors, encoders, and an IoT module, constructs a highly intelligent, safe, and reliable precision machining system. The main control motherboard's real-time monitoring and anomaly protection functions form the first line of defense for equipment operation, effectively preventing equipment damage and safety accidents caused by abnormal current or voltage, ensuring the continuity and stability of production. Multiple servo motors, under the precise feedback of the encoder, achieve coordinated control of multi-axis movements such as the tilting angle, rotation, and lifting of crystal crafts, ensuring high precision and repeatability in hemispherical parting machining, greatly improving product processing quality and craftsmanship. The encoder and main control motherboard communicate in real-time via pulse, direction, enable, and alarm signals, forming a fast-response closed-loop control system that allows the system to adjust motor states instantly, optimize machining paths, and improve production efficiency. The addition of IoT modules breaks down the silos of traditional equipment and enables remote data interaction with the cloud platform. This not only supports remote monitoring, fault warning and diagnosis of the production process, but also lays a solid foundation for big data analysis, predictive maintenance and intelligent upgrades of production management, ultimately achieving comprehensive technological improvements from equipment safety, processing accuracy, production efficiency to remote operation and maintenance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] The crystal polishing machine control system and method of the present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the electrical control of the grinding machine in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the present invention using the grinding machine in Example 1 to grind crystal. Detailed Implementation

[0017] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0018] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0019] Example 1 like Figure 1 As shown, the present invention provides a crystal grinding machine control system, comprising: The main control board is used to monitor the parameters of the circuit in the grinder. When an abnormality in the current or voltage of the circuit is detected, the control circuit disconnects the power supply to the servo system. The servo system includes: several servo motors and encoders; Several servo motors are used to control the grinding machine's tilting angle, rotation, and lifting movements on the crystal, so as to achieve the hemispherical parting process of the crystal; The encoder, installed on the servo motor, is used to monitor the position and speed of each servo motor in the grinding machine in real time, and communicates with the main control motherboard in real time through pulse signals, pulse direction signals, driver enable signals and alarm signals. The Internet of Things (IoT) module is used to enable remote communication between the grinder and the IoT cloud platform.

[0020] Crystal grinding machines also include: The emergency stop button is used to stop the grinding machine from running in an emergency. The start button is used to start the grinder. The stop button is used to stop the grinder from running. The local / remote switching button is used to switch the control mode of the grinder; A touchscreen is used to display and allow manual remote adjustment of the grinder's operating status and parameter settings.

[0021] The grinding mill also includes: An air switch is used to connect or disconnect the grinder from the power supply. The electricity meter is connected to the main control motherboard via an RS485 interface and is used to monitor the parameters of the circuit in the grinder in real time. Intermediate relays are used to control AC contactors to cut off the power supply to the servo system when an abnormal current or voltage signal is sent from the main control board. An AC contactor is used to connect or disconnect the power supply to the various servo motors in the grinding machine.

[0022] The main control board is equipped with a three-color indicator light; the three-color indicator light includes: a yellow light, a green light, and a red light; The yellow light indicates that the crystal grinder has started; A green light indicates that the crystal polishing machine is operating normally; A red light indicates an alarm is coming on from the crystal polishing machine.

[0023] In this embodiment, the following steps are taken: The air switch K0 is closed to supply power to the equipment. The energy meter D1 detects the three-phase voltage and three-wire current. The main control board collects real-time data from the energy meter via RS485. In case of overcurrent, overvoltage, or phase loss, the main control board controls the intermediate relay K1, which in turn controls the AC contactor KM1, de-energizing the coarse grinding motor M1, fine grinding motor M2, precision grinding motor M3, and polishing motor M4, thus protecting the motors. In case of an emergency, pressing the emergency stop button S1 on the control panel de-energizes the AC contactors KM1, KM2, KM3, KM4, and KM5, stopping the AC motors M1, M2, M3, and M4. The switching power supply powers the main control board and other 24V relays in the equipment.

[0024] The controller has an emergency stop button, a start button, a stop button, a local / remote switching button, and a touchscreen. Pressing the start button starts the machine, which moves to the coarse grinding position and begins grinding the crystal. After completing coarse grinding, fine grinding, high-precision grinding, and polishing steps, pressing the stop button completes one grinding cycle. During grinding, pressing the stop button pauses the machine, and pressing continue on the touchscreen resumes operation.

[0025] When the S4 switch is in remote mode, the machine accepts remote control and parameter configuration. The machine connects to the IoT cloud platform via the 4G module. The 3D modeling computer exports process parameters to the remote management computer, which then downloads them to the machine via the cloud platform. This enables the process of directly downloading the design model to the machine, improving work efficiency.

[0026] The pulse signals, pulse direction, driver enable signals, and alarm signal lines of absolute encoders S1, S2, S3, S4, S5, S6, S7, S8, S9, and S10 are connected to the main control board. The encoder's RS485 lines are connected in a daisy-chain configuration to the main control board's RS485_2 communication interface. Each encoder's UWV line is connected to the corresponding servo motor, and the servo motor's feedback line is connected to the corresponding encoder. The forward and backward movement of the servo motor is controlled by the main control board sending corresponding pulse signals and pulse direction signals.

[0027] Example 2 The present invention also provides a control method for implementing the crystal polishing machine control system in Embodiment 1, comprising the following steps: A laser rangefinder is used to measure the height of the rough grinding, fine grinding, and polishing grinding discs in real time, and the height of the rough grinding, fine grinding, and polishing grinding discs is dynamically adjusted to the same horizontal position based on the measurement results. Process parameters are remotely downloaded to the local controller via an IoT cloud platform; the process parameters include swing angle, rotation angle, processing height, retraction amount, slow advance amount, dwell time, swing amplitude, slow advance speed, and flip-plate gap; The crystal hemisphere parting process is controlled according to the process parameter matrix, which is constructed by row × face × parameter set, and each processing face element corresponds to an independent parameter group. Real-time acquisition of pressure values ​​during the fine grinding and polishing stages, and dynamic adjustment of the grinding disc lifting height based on the pressure values; Automatically controls the start and stop of the motors for coarse grinding, fine grinding, fine grinding, and polishing, as well as the movement, swinging, rotation, and lifting actions of the servo motors.

[0028] In this embodiment, laser ranging is used to measure the height of the grinding disc, supporting remote download of process parameters, local monitoring of the grinding machine's working status, real-time detection of fine grinding and polishing pressure, dynamic adjustment of the fine grinding and polishing disc height, automatic control of the operation and stop of the coarse grinding, fine grinding, and polishing motors, automatic control of fan operation based on ambient temperature to reduce dust accumulation, and the use of high-precision, low-energy-consumption, environmentally friendly and energy-saving absolute value servo motors to achieve movement, swinging, cornering, and lifting control. The main control board collects power, weighing, laser ranging, and servo motor data through multiple serial ports. The human-machine interface controller is an independent system that communicates with the main control board via serial port. The main control motherboard implements core logic business execution, including servo motor control requiring rapid response, input / output control, and other emergency stop protection controls.

[0029] The steps for dynamically adjusting the height of the grinding discs for coarse grinding, fine grinding, precision grinding, and polishing include: The control vehicle moves sequentially above each grinding disc, and the initial distance between the laser rangefinder and the rough grinding, fine grinding, precision grinding, and polishing grinding discs is recorded by the laser rangefinder installed on the vehicle. Using the coarse grinding disc as a reference, the servo motor drivers for fine grinding, fine grinding, and polishing are controlled to adjust the height of the corresponding grinding discs so that the heights of the four grinding discs are consistent.

[0030] The step of real-time acquisition of pressure values ​​during the fine grinding and polishing stages includes: A weighing sensor is installed on the copper mounting rod of the fine grinding and polishing disc; The pressure value is obtained through the analog signal acquisition module, and the amount of grinding disc rise is controlled according to the pressure value.

[0031] In this embodiment, a weighing sensor is installed on the copper mounting rod of the fine grinding and polishing disc. The controller can collect the pressure value in real time through the analog signal acquisition module, and adjust the rise of the grinding disc according to the pressure value.

[0032] A laser rangefinder is installed on the mobile carriage support. The carriage is first moved onto the coarse grinding disc, and the distance between the laser rangefinder and the coarse grinding disc is measured. The controller records the distance value JL1. The same method is used to move the carriage to the fine grinding disc, the finishing grinding disc, and the polishing disc, and the distance values ​​JL2, JL3, and JL4 are recorded respectively. Then, using the coarse grinding disc as a reference, the controller sends commands to the servo motor drivers of the fine grinding, finishing grinding, and polishing discs to adjust the height of the four grinding discs to the same horizontal position.

[0033] Another important application of laser rangefinders is to detect the tilt and flatness of the center and edge of a grinding disc. By moving the trolley so that the laser head of the laser rangefinder illuminates the left edge of the grinding disc, the rangefinder slowly moves to the right and records the distance value in real time. The maximum value minus the minimum value reflects the tilt and flatness.

[0034] It also includes security protection mechanisms: The three-phase voltage and current are monitored in real time by the electricity meter. When overcurrent, overvoltage or phase loss is detected, the intermediate relay is controlled to cut off the AC contactor, so that the coarse grinding, fine grinding, fine grinding and polishing motors are de-energized. In response to the emergency stop button signal, disconnect all AC contactors to stop the motor from working.

[0035] Example 3 The present invention also provides a crystal grinding process using the crystal grinding machine control system in Embodiment 1: like Figure 2 As shown, the grinding carriage is controlled by servo motors A (left-right translation SM1) and B (left-right translation SM4) on a horizontal frame, which can also achieve synchronous relative movement. Fixtures SJ1 and SJ2 are fixed to the rotating column of the rotating tray. Sway angle SM3 and A (rotation surface SM2) control the sway angle and rotation surface of fixture JJ1, while sway angle SM6 and B (rotation surface SM5) control the sway angle and rotation surface of fixture JJ2. The system is started, relevant parameters are loaded, and the process parameters for the first surface to be ground are read. The corresponding servo motors for sway angle and rotation surface are controlled to the positions specified in the process parameters. The coarse grinding AC motor M1 is turned on to rotate the grinding disc. The left-right translation servo motors A (left-right translation SM1) and B (left-right translation servo motor SM4) are controlled to move the carriage directly above the coarse grinding disc. Based on the process parameters for the first surface, the coarse grinding servo motor is controlled to raise the grinding disc and begin grinding the first surface. After the grinding parameters are set for a certain time, the grinding disc is lowered, the process parameters for the second surface are loaded, the sway angle and rotation surface are adjusted, and then the coarse grinding disc is raised to begin grinding. This process continues until all grinding is complete. Next, the moving cart moves to the fine grinding disc position to begin fine grinding. After fine grinding is completed, the moving cart moves to the finishing grinding position for finishing grinding. After finishing grinding is completed, the moving cart moves to the polishing position to begin polishing. After polishing is completed, one cycle ends, and the moving cart returns to its initial position.

[0036] Crystal Grinding Process: The crystal embryo is processed using a hemispherical parting line, divided into two independent processing areas: an upper hemisphere (m rows × n faces) and a lower hemisphere (i rows × j faces). The hemispherical processing areas are configured using a parameter matrix, establishing a three-dimensional parameter coordinate system (rows × faces × parameter set). Each processing surface element corresponds to an independent parameter set, including swing angle θ, rotation angle φ, processing height H, retraction amount Δh, slow feed amount δ, dwell time t, swing amplitude A, slow feed speed v, and flip-plate gap d. The processing flow is completed by controlling the machine tool servo motor and turntable movement row by row and face by face. The rotary motor is started to drive the grinding disc to rotate, and the coolant circulation system is activated. The rotary axis is controlled to rise to the processing height H, the swing angle axis is adjusted to the swing angle θ, and the rotation angle axis is adjusted to the rotation angle φ. Perform slow-feed grinding (the rotary axis feeds at a slow feed speed v to a slow feed amount δ) and pressure-holding grinding (the rotary axis holds the current height and holds pressure for a dwell time t). After grinding one surface, perform tool retraction and repositioning (the rotary axis retracts by a retraction amount Δh). Repeat this process until all surfaces of all rows are machined.

[0037] The specific processes for rough grinding, fine grinding, high-precision grinding, and polishing are as follows: (1) First, read the process parameters of the equipment to be processed from the storage space of the control board. Read the rough grinding process parameters of the first row and the first surface: swing angle θ1 degrees, rotation φ1 degrees, rise height H1 cm, slow feed δ1, slow feed speed V1, dwell time T1, and retraction Δh1; fine grinding process parameters: swing angle θ2 degrees, rotation φ2 degrees, rise height H2 cm, slow feed δ2, slow feed speed V2, dwell time T2, and retraction Δh2; fine grinding process parameters: swing angle θ3 degrees, rotation φ3 degrees, rise height H3 cm, slow feed δ3, slow feed speed V3, dwell time T3, and retraction Δh3; polishing process parameters: swing angle θ4 degrees, rotation φ4 degrees, rise height H4 cm, slow feed δ4, slow feed speed V4, dwell time T4, and retraction Δh4.

[0038] (2) Next, perform coarse grinding, fine grinding, fine grinding, and polishing.

[0039] 1. Rough Grinding: The trolley holding the crystal blank moves to the top of the rough grinding disc, controls the swing angle servo motor to rotate to the θ1 degree position, controls the surface rotation servo motor to rotate to the φ1 degree position, controls the rough grinding lifting motor to rise to the position δ1 away from the highest height, and then rises to the height H1 centimeters at a slow feed speed V1, and stays at this position for T1 time. After grinding is completed, it moves back to Δh1 to prepare for the next process. 2. Fine grinding: The trolley that holds the crystal blank moves to the top of the fine grinding disc. The servo motor of the swing angle is controlled to rotate to the θ2 degree position, the servo motor of the rotating surface is controlled to rotate to the φ2 degree position, and the fine grinding lifting motor is controlled to rise to the position δ2 away from the highest height. Then, it rises to the height H2 centimeters at a slow feed speed V2 and stays at the position for T2 time. After the grinding is completed, it moves back to Δh2 to prepare for the next process. 3. Fine grinding: The trolley that holds the crystal blank moves to the top of the fine grinding disc. The servo motor of the swing angle is controlled to rotate to the θ3 degree position, the servo motor of the rotating surface is controlled to rotate to the φ3 degree position, and the fine grinding lifting motor is controlled to rise to the position δ3 away from the highest height. Then, it rises to the height H3 centimeters at a slow feed speed V3 and stays at this position for T3 time. After grinding is completed, it moves back to Δh3 to prepare for the next process. 4. Polishing: The trolley that holds the crystal blank moves to the top of the polishing wheel. The servo motor is controlled to rotate to the θ1 degree position, the servo motor is controlled to rotate to the φ4 degree position, and the polishing lifting motor is controlled to rise to the position δ4 away from the highest height. Then, it rises to the height H4 centimeters at a slow advance speed V4 and stays at this position for T4 time. After the grinding is completed, it moves back to Δh4 to prepare for the next process. After grinding is completed, the machine uses a laser rangefinder to detect the height of the grinding discs and adjusts the height of the grinding discs so that all four grinding discs are at the same height.

[0040] The controller motherboard controls the three-color indicator lights: a yellow light indicates startup, a green light indicates normal machine operation, and a red light indicates an alarm or emergency shutdown.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crystal grinding machine control system, characterized in that, include: The main control board is used to monitor the parameters of the circuit in the grinder. When an abnormality in the current or voltage of the circuit is detected, the control circuit disconnects the power supply to the servo system. The servo system includes: several servo motors and encoders; Several servo motors are used to control the grinding machine's tilting angle, rotation, and lifting movements on the crystal, so as to achieve the hemispherical parting process of the crystal; The encoder, installed on the servo motor, is used to monitor the position and speed of each servo motor in the grinding machine in real time, and communicates with the main control motherboard in real time through pulse signals, pulse direction signals, driver enable signals and alarm signals. The Internet of Things (IoT) module is used to enable remote communication between the grinder and the IoT cloud platform.

2. The crystal grinding machine control system according to claim 1, characterized in that, Also includes: The emergency stop button is used to stop the grinding machine from running in an emergency. The start button is used to start the grinder. The stop button is used to stop the grinder from running. The local / remote switching button is used to switch the control mode of the grinder; A touchscreen is used to display and allow manual remote adjustment of the grinder's operating status and parameter settings.

3. The crystal grinding machine control system according to claim 1, characterized in that, Also includes: An air switch is used to connect or disconnect the grinder from the power supply. The electricity meter is connected to the main control motherboard via an RS485 interface and is used to monitor the parameters of the circuit in the grinder in real time. Intermediate relays are used to control AC contactors to cut off the power supply to the servo system when an abnormal current or voltage signal is sent from the main control board. An AC contactor is used to connect or disconnect the power supply to the various servo motors in the grinding machine.

4. The crystal grinding machine control system according to claim 1, characterized in that, The main control motherboard is equipped with a three-color indicator light; The three-color warning lights include: yellow, green, and red. The yellow light indicates that the crystal grinder has started; A green light indicates that the crystal polishing machine is operating normally; A red light indicates an alarm is coming on from the crystal polishing machine.

5. A crystal polishing machine control method, used to implement the crystal polishing machine control system as described in any one of claims 1-4, characterized in that, Includes the following steps: A laser rangefinder is used to measure the height of the rough grinding, fine grinding, and polishing grinding discs in real time, and the height of the rough grinding, fine grinding, and polishing grinding discs is dynamically adjusted to the same horizontal position based on the measurement results. Process parameters are remotely downloaded to the local controller via an IoT cloud platform; the process parameters include swing angle, rotation angle, processing height, retraction amount, slow advance amount, dwell time, swing amplitude, slow advance speed, and flip-plate gap; The crystal hemisphere parting process is controlled according to the process parameter matrix, which is constructed by row × face × parameter set, and each processing face element corresponds to an independent parameter group. Real-time acquisition of pressure values ​​during the fine grinding and polishing stages, and dynamic adjustment of the grinding disc lifting height based on the pressure values; Automatically controls the start and stop of the motors for coarse grinding, fine grinding, fine grinding, and polishing, as well as the movement, swinging, rotation, and lifting actions of the servo motors.

6. The crystal grinding machine control method according to claim 5, characterized in that, The steps for dynamically adjusting the height of the grinding discs for coarse grinding, fine grinding, precision grinding, and polishing include: The control vehicle moves sequentially above each grinding disc, and the initial distance between the laser rangefinder and the rough grinding, fine grinding, precision grinding, and polishing grinding discs is recorded by the laser rangefinder installed on the vehicle. Using the coarse grinding disc as a reference, the servo motor drivers for fine grinding, fine grinding, and polishing are controlled to adjust the height of the corresponding grinding discs so that the heights of the four grinding discs are consistent.

7. The crystal grinding machine control method according to claim 5, characterized in that, The step of real-time acquisition of pressure values ​​during the fine grinding and polishing stages includes: A weighing sensor is installed on the copper mounting rod of the fine grinding and polishing disc; The pressure value is obtained through the analog signal acquisition module, and the amount of grinding disc rise is controlled according to the pressure value.

8. The crystal grinding machine control method according to claim 5, characterized in that, The method also includes security protection mechanisms: The three-phase voltage and current are monitored in real time by the electricity meter. When overcurrent, overvoltage or phase loss is detected, the intermediate relay is controlled to cut off the AC contactor, so that the coarse grinding, fine grinding, fine grinding and polishing motors are de-energized. In response to the emergency stop button signal, disconnect all AC contactors to stop the motor from working.

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