Device and control method for automatically adjusting the position of the mold and the electronic glass for display

Abstract

This invention relates to the field of glass processing equipment technology, and discloses an automatic device for adjusting the position of the grinding wheel and electronic glass for display. The device includes a grinding platform for supporting the glass, a positioning device for fixing the glass to the fixed grinding platform, a grinding device for grinding, a cutting device for moving the grinding device, and an alarm device for issuing an alarm. The invention also discloses a control method for the automatic adjustment of the position of the grinding wheel and electronic glass for display, comprising the following steps: initial setting, grinding preparation, determining the grinding travel origin, first grinding stage, second grinding stage, third grinding stage, fourth grinding stage, and changing the grinding groove. This invention can automatically adjust the positional relationship between the grinding wheel and the glass, and can reduce adverse factors such as temperature, noise, and vibration generated during the grinding process, effectively improving the uniformity and quality of glass edge grinding.

Description

Technical Field

[0001] This invention relates to the field of electronic glass processing equipment technology, and in particular to a control method for a device that automatically adjusts the position of a mold and electronic glass for display. Background Technology

[0002] Electronic glass is a widely used material with advantages such as transparency, high temperature resistance, and corrosion resistance. Electronic glass generally refers to ultra-thin float glass with a thickness of 0.1–2 mm. It is a type of high-tech product used in the fields of electronics, microelectronics, and optoelectronics, primarily used in the manufacture of integrated circuits and electronic glass materials with optoelectronic, thermoelectric, acousto-optic, and magneto-optical functions. During the processing of electronic glass, operations such as cutting, grinding, and polishing are typically required to meet different shape and size requirements. To reduce minor defects remaining on the edges after cutting, grinding and polishing are necessary after cutting. Grinding mainly removes small burrs and electronic glass powder, improving the smoothness and flatness of the edges. Both grinding and polishing involve grinding wheels or polishing wheels rotating with the motor spindle, acting on the edges of the electronic glass.

[0003] Currently, the grinding process for electronic glass typically employs a direct grinding method, such as... Figure 1 As shown, electronic glass is brought into direct contact with a grinding wheel or other similar abrasive tool with a certain hardness and grit, and a specific depth of cut is set to directly contact the electronic glass, thereby achieving cutting and grinding of the edges of the electronic glass. However, this direct grinding method has the following drawbacks:

[0004] Firstly, because the edges of electronic glass are not perfectly straight after cutting, or because the electronic glass itself is offset, some areas of the electronic glass may be ground more than others, resulting in unevenness and irregularity of the edges of the electronic glass, which affects the appearance and performance of the electronic glass.

[0005] Secondly, excessive grinding in certain areas generates greater friction, leading to higher temperatures between the electronic glass and the grinding wheel or other similar abrasives. This can cause localized deformation, chipping, or even cracking of the electronic glass surface, affecting its strength and stability.

[0006] Third, the direct grinding method has a large impact force in local areas, which causes greater noise and vibration between the electronic glass and the grinding wheel or other similar abrasives, affecting the health and safety of the operator. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention develops a control method for an automatic adjustment device for the position of the grinding mold and the electronic glass for display. This invention can not only automatically adjust the positional relationship between the grinding mold and the electronic glass, but also reduce adverse factors such as temperature, noise and vibration generated during the grinding process, effectively improving the uniformity and quality of the edge grinding of the electronic glass.

[0008] The technical solution to the technical problem solved by the present invention is as follows: On the one hand, the present invention provides an automatic adjustment device for the position of a grinding mold and electronic glass for display, including a grinding platform for supporting the electronic glass, a positioning device for fixing the electronic glass to a fixed grinding platform, a grinding device for grinding, a cutting device for moving and raising the grinding device, and an alarm device for issuing an alarm. The grinding device includes a mounting plate, on which a pressure output unit, a stop cylinder, and a locking cylinder are provided. The pressure output unit includes a torque motor, an encoder, and a PID controller. A rotating arm is provided on the torque motor. The output end of the torque motor of the pressure output unit is connected to one end of the rotating arm. A grinding wheel motor is provided at the other end of the rotating arm. A grinding wheel is provided at the output end of the grinding wheel motor. The stop cylinder and the locking cylinder are respectively provided on both sides of the rotating arm. A stop block is provided on the rotating arm. The two sides of the stop block cooperate with the output ends of the stop cylinder and the locking cylinder, respectively.

[0009] As an optimization, the grinding wheel is provided with several sets of grinding grooves. By setting several sets of grinding grooves on the grinding wheel, the service life of a single grinding wheel can be extended.

[0010] On the other hand, the present invention also provides a control method for the device for automatically adjusting the position of the mold and the electronic glass for display, comprising the following steps:

[0011] S1. Initial setting: The output ends of the blocking cylinder and the locking cylinder extend simultaneously. After the output ends of the blocking cylinder and the locking cylinder position the stop block, the position of the rotating arm at this time is set as the origin of the rotating arm. In step S1, the origin of the rotating arm can be initially set to prevent the rotating arm from shaking.

[0012] S2. Grinding preparation: The electronic glass is sent to the grinding platform and fixed by the positioning device.

[0013] S3. Determine the grinding origin, retract the output end of the locking cylinder, keep the output end of the blocking cylinder extended, start the torque motor, start the cutting device, and push the grinding device towards the corner edge of the electronic glass so that the grinding wheel is aligned with the corner of the electronic glass; In step S3, after the output end of the locking cylinder is retracted, the rotating arm can rotate backward, which can prevent the cutting device from pushing the grinding device too far towards the edge of the electronic glass and crushing the electronic glass. After the torque motor is started, the stop block and the output end of the blocking cylinder are kept in contact, so that the rotating arm is kept at the origin without the grinding wheel contacting the electronic glass;

[0014] S4. In the first stage of grinding, the output end of the locking cylinder remains in the retracted state, and the output end of the blocking cylinder remains in the extended state. The cutting device drives the grinding device to move along the edge of the electronic glass, while the grinding wheel motor drives the grinding wheel to move along the edge of the electronic glass and grind it. The moving distance is X. In step S4, the grinding wheel is located at the corner of the electronic glass. By keeping the output end of the locking cylinder in the retracted state and the output end of the blocking cylinder in the extended state, the grinding device can be prevented from crushing the corner of the electronic glass. After moving a distance of X, it can be ensured that the danger zone has been passed.

[0015] S5, the second stage of grinding: After moving a distance X, the output end of the locking cylinder remains in the retracted state, and the output end of the blocking cylinder retracts. The torque motor drives the rotating arm to rotate, generating forward pressure displacement. The torque motor maintains a constant grinding pressure output, ensuring that the grinding wheel is always in contact with the edge of the electronic glass and presses it with constant pressure. The encoder converts the forward pressure displacement of the rotating arm into an electrical signal and transmits it to the PID controller. The PID controller processes the electrical signal and adjusts the output of the torque motor in a closed loop. In step S5, the output ends of both the locking cylinder and the blocking cylinder are retracted, allowing the rotating arm to rotate forward to bring the grinding wheel closer to the edge of the electronic glass, and to rotate backward to move the grinding wheel away from the edge of the electronic glass. During this process, the rotating arm will also rotate a certain distance accordingly, generating the position parameters of the rotating arm. After the torque motor drives the rotating arm to rotate and generate forward pressure displacement, the grinding wheel can grind the edge of the electronic glass. Under the constant grinding pressure output by the torque motor, and in conjunction with the torque motor adjusting the rotating arm forward or backward, the position error is automatically corrected, and the movement of the rotating arm is more precisely controlled. This allows the grinding wheel to adjust slightly with the undulations of the edge of the electronic glass, maintaining a stable grinding amount.

[0016] S6, the third stage of grinding: the output end of the locking cylinder is kept in the retracted state. When the distance between the grinding wheel and the other corner of the electronic glass is Y, the output end of the blocking cylinder extends and abuts against the stop block, causing the grinding wheel to detach from the edge of the electronic glass. In step S6, when the distance between the grinding wheel and the other corner of the electronic glass is Y, the grinding wheel enters the corner area of ​​the electronic glass. By extending the output end of the blocking cylinder, the rotating arm can be lifted to prevent the grinding wheel from crushing the corner of the electronic glass.

[0017] S7. Fourth stage of grinding: The grinding wheel continues to move and grind along the edge of the electronic glass, with a moving distance of Y. Grinding ends.

[0018] S8. Change the grinding groove. Adjust the height of the grinding device using the cutting device to adjust the cutting position of the grinding wheel, and change the grinding groove for grinding the next piece of electronic glass. After each grinding groove has been ground for one cycle, the next cycle of grinding begins. In step S8, adjusting the height of the grinding wheel allows for changing the grinding groove, enabling cyclical use and extending the service life of individual grinding wheels.

[0019] As an optimization, in step S1, the position of the grinding wheel is projected onto the vertical line between the torque motor and the electronic glass. The distance between the projection point of the grinding wheel position and the torque motor is set to A. When the rotating arm is at its origin, distance A is set to the origin distance A1. The rotating arm can rotate forward or backward from the origin. The range of forward or backward movement of the projection point of the grinding wheel position on the vertical line is set to A2-A3. The effective grinding distance A is set to the effective grinding distance A4, and the actual grinding distance A is set to the actual grinding distance A5. By setting the distance between the projection point of the grinding wheel position and the torque motor to A, the circular motion data of the rotating arm is converted into linear motion data of the grinding wheel. This allows the PID controller to easily compare different positions of the grinding wheel and adjust the output of the torque motor. By setting the range of forward or backward movement of the projection point of the grinding wheel position on the vertical line to A2-A3, the forward or backward rotation range of the rotating arm is limited. Setting the effective grinding distance A4 and the actual grinding distance A5 facilitates comparison by the PID controller, thereby adjusting the output of the torque motor.

[0020] As an optimization, in step S5, the PID controller compares the effective grinding distance A4 with the actual grinding distance A5, and outputs a signal to adjust the output of the torque motor, which drives the rotating arm to rotate and adjusts the position of the grinding wheel, thereby adjusting the actual grinding distance A5.

[0021] As an optimization, in step S5, if the effective grinding distance A4 is equal to the actual grinding distance A5, the torque motor maintains its output; if the effective grinding distance A4 is greater than the actual grinding distance A5, that is, the grinding wheel is closer to the electronic glass and the rotating arm is squeezed in the opposite direction, then the cutting depth needs to be reduced and the actual grinding distance A5 needs to be reduced; if the effective grinding distance A4 is less than the actual grinding distance A5, that is, the grinding wheel is farther from the electronic glass and the forward displacement space of the rotating arm is larger, then the cutting depth needs to be increased and the actual grinding distance A needs to be increased.

[0022] As an optimization, in step S1, the safe distance range for the projection point of the grinding wheel position forward or backward on the vertical line is set to A6 to A7. When the actual grinding distance A5 is less than A6 or greater than A7, the alarm device will sound an alarm.

[0023] As an optimization, the alarm device is turned off in steps S1-S4, turned on in step S5, and turned off in step S6. This ensures that the alarm device is activated only in step S5, preventing accidental alarm activation due to large fluctuations in the position of the rotating arm in other steps.

[0024] As an optimization, at the end of step S5 and the beginning of step S6, the PID controller records the actual grinding distance A5 of the grinding wheel at this time, i.e., the actual grinding distance A5 of the current grinding groove. After each grinding groove completes one grinding cycle, when entering the next grinding cycle, the PID controller automatically corrects the actual grinding distance A5 of each grinding groove in the previous cycle. This avoids the problem of sudden increases in local grinding amount of the grinding wheel, reduces the load on the grinding wheel, extends the service life of the grinding wheel, and can automatically correct and fine-tune the grinding wheel.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] By installing a mounting plate, a pressure output unit, a stop cylinder, and a locking cylinder can be installed. The pressure output unit can output constant pressure, automatically adjust the position of the rotating arm, and fine-tune the actual position of the grinding wheel, effectively avoiding the adverse effects of the grinding wheel cutting too deep or too shallow. This ensures the grinding wheel remains pressed against the edge of the electronic glass and can adjust accordingly to the slight undulations of the glass edge. By setting up a torque motor, encoder, and PID controller, a closed-loop control system is formed. The encoder monitors the actual position of the rotating arm, and the PID controller adjusts the pressure based on the encoder's feedback information. The torque motor output is adjusted to bring the rotating arm to the desired position, thereby automatically correcting positional errors and controlling the movement of the rotating arm more precisely. A stop cylinder prevents excessive forward pressure on the rotating arm, prevents the grinding wheel from cutting too deeply, and prevents the grinding wheel from crushing the corners of the electronic glass at the beginning and end of grinding. A locking cylinder works in conjunction with the stop cylinder to lock the position of the rotating arm. The rotating arm drives the grinding wheel motor and grinding wheel to rotate. The grinding wheel motor and grinding wheel enable grinding of the edges of the electronic glass. A stop block allows the stop cylinder and locking cylinder to easily engage and limit the movement of the rotating arm. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the principle of direct grinding in existing technologies.

[0028] Figure 2 This is a schematic diagram illustrating the principle of a grinding method according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic flowchart of a control method for a device for automatically adjusting the position of a mold and an electronic glass for display, according to the present invention.

[0030] Figure 4 This is a schematic diagram of step S4 of the device for automatically adjusting the position of the mold and the electronic glass for display according to the present invention.

[0031] Figure 5 This is a schematic diagram of step S5 of the device for automatically adjusting the position of the mold and the electronic glass for display according to the present invention.

[0032] Figure 6 This is a schematic diagram of step S6 of the device for automatically adjusting the position of the mold and the electronic glass for display according to the present invention.

[0033] Figure 7 This is a schematic diagram of the grinding wheel and electronic glass in the device for automatically adjusting the position of the abrasive and the electronic glass for display according to the present invention, when their positions are appropriate.

[0034] Figure 8 This is a schematic diagram of the grinding wheel and electronic glass being positioned close together in the device for automatically adjusting the position of the grinding wheel and the electronic glass for display according to the present invention.

[0035] Figure 9 This is a schematic diagram of the device for automatically adjusting the position of the grinding wheel and the electronic glass for display in this invention, when the grinding wheel and the electronic glass are far apart.

[0036] In the diagram: 1. Mounting plate; 2. Pressure output unit; 21. Torque motor; 3. Stop cylinder; 4. Locking cylinder; 5. Rotating arm; 6. Grinding wheel motor; 7. Grinding wheel; 8. Stop block. Detailed Implementation

[0037] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0038] Example 1

[0039] On the one hand, the present invention also provides an embodiment, such as Figures 2-9 As shown, an automatic adjustment device for the position of a grinding mold and electronic glass for display includes a grinding platform for supporting the electronic glass, a positioning device for fixing the electronic glass to a fixed grinding platform, a grinding device for grinding, a cutting device for moving the grinding device, and an alarm device for issuing an alarm. The grinding device includes a mounting plate 1, on which a pressure output unit 2, a stop cylinder 3, and a locking cylinder 4 are provided. The pressure output unit 2 includes a torque motor 21, an encoder, and a PID controller. A rotating arm 5 is provided on the torque motor 21. The output end of the torque motor 21 of the pressure output unit 2 is connected to one end of the rotating arm 5. A grinding wheel motor 6 is provided at the other end of the rotating arm 5. A grinding wheel 7 is provided at the output end of the grinding wheel motor 6. The stop cylinder 3 and the locking cylinder 4 are respectively provided on both sides of the rotating arm 5. A stop block 8 is provided on the rotating arm 5. The two sides of the stop block 8 cooperate with the output ends of the stop cylinder 3 and the locking cylinder 4, respectively.

[0040] By setting the mounting plate 1, the pressure output unit 2, the stop cylinder 3, and the locking cylinder 4 can be installed. The pressure output unit 2 can output constant pressure, automatically adjust the position of the rotating arm 5, and fine-tune the actual position of the grinding wheel 7, effectively avoiding the adverse effects caused by the grinding wheel 7 cutting too deep or too shallow, ensuring that the grinding wheel 7 is always pressed against the edge of the electronic glass and can be adjusted accordingly to the slight undulations of the electronic glass edge. By setting the torque motor 21, encoder, and PID controller, a closed-loop control is formed. The encoder can monitor the actual position of the rotating arm 5, and the PID controller can adjust the torque motor based on the actual position information of the rotating arm 5 fed back by the encoder. The output of machine 21 enables the rotating arm 5 to reach the desired position, thereby automatically correcting position errors and more precisely controlling the movement of the rotating arm 5; by setting a stop cylinder 3, it is possible to prevent the rotating arm 5 from pressing forward excessively, prevent the grinding wheel 7 from cutting too deeply, and prevent the grinding wheel 7 from crushing the corner of the electronic glass at the beginning and end of grinding; by setting a locking cylinder 4, it can cooperate with the stop cylinder 3 to lock the position of the rotating arm 5; by setting the rotating arm 5, it can drive the grinding wheel motor 6 and the grinding wheel 7 to rotate; by setting the grinding wheel motor 6 and the grinding wheel 7, it can grind the edge of the electronic glass; by setting a stop block 8, it is possible to facilitate the stop cylinder 3 and the locking cylinder 4 to abut against the rotating arm 5 and limit the rotation of the rotating arm 5.

[0041] like Figures 7-9 As shown, the grinding wheel 7 has several sets of grinding grooves. By setting several sets of grinding grooves on the grinding wheel 7, the service life of a single grinding wheel 7 can be extended.

[0042] On the other hand, such as Figure 3 As shown, the present invention also provides a control method for the device for automatically adjusting the position of the mold and the electronic glass for display, comprising the following steps:

[0043] S1. Initial setting: The output ends of the blocking cylinder 3 and the locking cylinder 4 extend simultaneously. After the output ends of the blocking cylinder 3 and the locking cylinder 4 position the stop block 8, the position of the rotating arm 5 at this time is set as the origin of the rotating arm 5. In step S1, the origin of the rotating arm 5 can be initially set to prevent the rotating arm 5 from shaking.

[0044] S2. Grinding preparation: The electronic glass is sent to the grinding platform and fixed by the positioning device.

[0045] S3. Determine the grinding travel origin, retract the output end of the locking cylinder 4, keep the output end of the blocking cylinder 3 extended, start the torque motor 21, start the cutting device, and push the grinding device towards the corner edge of the electronic glass so that the grinding wheel 7 is aligned with the corner of the electronic glass; In step S3, after the output end of the locking cylinder 4 is retracted, the rotating arm 5 can rotate backward, which can prevent the cutting device from pushing the grinding device too far towards the edge of the electronic glass and crushing the electronic glass. After the torque motor 21 is started, the stop block 8 is kept in contact with the output end of the blocking cylinder 3, so that the rotating arm 5 is kept at the origin without the grinding wheel 7 contacting the electronic glass;

[0046] S4, Grinding stage 1, such as Figure 4 As shown, the output end of the locking cylinder 4 remains in the retracted state, and the output end of the blocking cylinder 3 remains in the extended state. The cutting device drives the grinding device to move along the edge extension direction of the electronic glass. At the same time, the grinding wheel motor 6 drives the grinding wheel 7 to move and grind along the edge of the electronic glass. The moving distance is X, which is set to 10mm~30mm. The setting of the moving distance X is related to the grinding travel speed, the torque output of the torque motor 21, and the action speed. It needs to be set according to the actual grinding situation. In step S4, the grinding wheel 7 is located at the corner of the electronic glass. By keeping the output end of the locking cylinder 4 in the retracted state and the output end of the blocking cylinder 3 in the extended state, the grinding device can be prevented from crushing the corner of the electronic glass. After the moving distance exceeds X, it can be ensured that the danger zone is passed.

[0047] S5, Grinding stage 2, such as Figure 5 As shown, after moving a distance X, the output end of the locking cylinder 4 remains in the retracted state, and the output end of the blocking cylinder 3 retracts. The torque motor 21 drives the rotating arm 5 to rotate, generating a forward pressure displacement. The torque motor 21 maintains a constant output grinding pressure, ensuring that the grinding wheel 7 always contacts and presses the edge of the electronic glass with constant pressure. The encoder converts the forward pressure displacement of the rotating arm 5 into an electrical signal and transmits it to the PID controller. The PID controller processes the electrical signal and adjusts the output of the torque motor 21 in a closed loop. In step S5, the output ends of both the locking cylinder 4 and the blocking cylinder 3 are retracted, allowing the rotating arm 5 to rotate forward, thus enabling the grinding wheel 7 to press the edge of the electronic glass with constant pressure. When the grinding wheel 7 is close to the edge of the electronic glass, rotating it backward will move the grinding wheel 7 away from the edge of the electronic glass. During this process, the rotating arm 5 will also rotate a certain distance accordingly, generating the position parameters of the rotating arm 5. After the torque motor 21 drives the rotating arm 5 to rotate and generate forward displacement, the grinding wheel 7 can grind the edge of the electronic glass. Under the constant grinding pressure output by the torque motor 21, and in conjunction with the torque motor 21 adjusting the rotating arm 5 forward or backward, the position error is automatically corrected, and the movement of the rotating arm 5 is more precisely controlled, so that the grinding wheel 7 can be finely adjusted according to the undulation of the edge of the electronic glass, maintaining the stability of the grinding amount.

[0048] S6, Grinding stage three, such as Figure 6 As shown, the output end of the locking cylinder 4 remains in the retracted state. When the distance Y between the grinding wheel 7 and the other corner of the electronic glass is 5mm to 30mm, the distance Y is related to the grinding travel speed, the torque output of the torque motor 21, and the action speed. It needs to be set according to the actual grinding situation. The output end of the blocking cylinder 3 extends and blocks the stop block 8, so that the grinding wheel 7 is separated from the edge of the electronic glass. In step S6, when the distance Y between the grinding wheel 7 and the other corner of the electronic glass is 7mm, the grinding wheel 7 enters the corner area of ​​the electronic glass. By extending the output end of the blocking cylinder 3, the rotating arm 5 can be lifted to prevent the grinding wheel 7 from crushing the corner of the electronic glass.

[0049] S7. Fourth stage of grinding: Grinding wheel 7 continues to move and grind along the edge of the electronic glass, with a moving distance of Y, and grinding ends.

[0050] S8. Change the grinding groove. Adjust the height of the grinding device using the cutting device, thereby adjusting the cutting position of the grinding wheel 7. Change the grinding groove for grinding the next piece of electronic glass. After each grinding groove has been ground for one cycle, the next cycle of grinding begins. In step S8, adjusting the height of the grinding wheel 7 allows for changing the grinding groove, enabling cyclical use and extending the service life of a single grinding wheel 7.

[0051] In step S1, the position of the grinding wheel 7 is projected onto the vertical line between the torque motor 21 and the electronic glass. The distance between the projection point of the grinding wheel 7 and the torque motor 21 is set as A. When the rotating arm 5 is at the origin, the distance A is set as the origin distance A1, and A1 is set to 3mm. The rotating arm 5 can rotate forward or backward from the origin. The range of forward or backward movement of the projection point of the grinding wheel 7 on the vertical line is set as A2 to A3, and A2 is set to 2mm and A3 is set to 4mm. The effective grinding distance A is set as the effective grinding distance A4, and A4 is set to 3.2mm. The actual grinding distance A is set as the actual grinding distance A5. By setting the distance A between the projection point of the grinding wheel 7 and the torque motor 21, the circular motion data of the rotating arm 5 is converted into the linear motion data of the grinding wheel 7. This allows the PID controller to easily compare different positions of the grinding wheel 7 and adjust the output of the torque motor 21. By setting the forward or backward movement range of the projection point of the grinding wheel 7 on the vertical line to A2 to A3, the forward or backward rotation range of the rotating arm 5 is limited. Setting the effective grinding distance A4 and the actual grinding distance A5 facilitates comparison by the PID controller, thereby adjusting the output of the torque motor 21.

[0052] In step S5, the PID controller compares the effective grinding distance A4 with the actual grinding distance A5 and outputs a signal to adjust the output of the torque motor 21, which drives the rotating arm 5 to rotate and adjusts the position of the grinding wheel 7, thereby adjusting the actual grinding distance A5.

[0053] In step S5, such as Figure 7 As shown, if the effective grinding distance A4 equals the actual grinding distance A5, the distance between the grinding wheel 7 and the electronic glass is precise, and the torque motor 21 maintains its output; Figure 8 As shown, if the effective grinding distance A4 is greater than the actual grinding distance A5, that is, the grinding wheel 7 is closer to the electronic glass and the rotating arm 5 is squeezed in the opposite direction, then the cutting depth needs to be reduced, and the actual grinding distance A5 needs to be reduced; Figure 9 As shown, if the effective grinding distance A4 is less than the actual grinding distance A5, that is, the grinding wheel 7 is far from the electronic glass and the forward displacement space of the rotating arm 5 is large, then it is necessary to increase the cutting depth and increase the actual grinding distance A5.

[0054] In step S1, the safe distance range for the projection point of the grinding wheel 7 position forward or backward on the vertical line is set to A6 to A7, and A6 is set to 2.7mm and A7 to 3.7mm. When the actual grinding distance A5 is less than A6 or greater than A7, the alarm device will sound an alarm.

[0055] The alarm device is deactivated in steps S1-S4, activated in step S5, and deactivated in step S6. This ensures that the alarm device is activated only in step S5, preventing accidental alarm activation due to large fluctuations in the position of the rotating arm 5 in other steps, thus alerting operators or system maintenance personnel to take appropriate action. Once an alarm is triggered, operators should immediately take appropriate measures, including stopping the grinding process, inspecting the equipment, adjusting the cutting position of the grinding wheel 7, adjusting equipment parameters, or repairing the equipment. Causes of alarms include broken electronic glass, damaged grinding wheel, and worn components. After an alarm is issued, the alarm system can record detailed information about the alarm event, including alarm time, alarm cause, and alarm location, which helps in subsequent troubleshooting and improvement.

[0056] At the end of step S5 and the beginning of step S6, the PID controller records the actual grinding distance A5 of the grinding wheel 7, i.e., the actual grinding distance A5 of the current grinding groove. After each grinding groove completes one grinding cycle, when entering the next grinding cycle, the PID controller automatically corrects the actual grinding distance A5 of each grinding groove in the previous cycle. This avoids the problem of sudden increases in the local grinding amount of the grinding wheel 7, reduces the load on the grinding wheel 7, and extends the service life of the grinding wheel 7, and can automatically correct and fine-tune the grinding wheel 7.

[0057] The descriptions of the orientation or relative positional relationships of the structures in this invention, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

Claims

1. A control method for a device that automatically adjusts the position of a mold and an electronic glass for display, characterized in that, Includes the following steps: S1. Initial setting: The output ends of the blocking cylinder (3) and the locking cylinder (4) extend simultaneously. After the output ends of the blocking cylinder (3) and the locking cylinder (4) position the stop block (8), the position of the rotating arm (5) at this time is set as the origin of the rotating arm (5). S2. Grinding preparation: The electronic glass is sent to the grinding platform and fixed by the positioning device. S3. Determine the grinding origin, lock the output end of cylinder (4) to retract, keep the output end of cylinder (3) extended, start the torque motor (21), start the cutting device, push the grinding device towards the corner edge of the electronic glass, and align the grinding wheel (7) with the corner of the electronic glass. S4. In the first stage of grinding, the output end of the locking cylinder (4) is kept in the retracted state, the output end of the blocking cylinder (3) is kept in the extended state, the cutting device drives the grinding device to move along the extension direction of the electronic glass edge, and at the same time the grinding wheel motor (6) drives the grinding wheel (7) to move and grind along the edge of the electronic glass, with a moving distance of X. S5. In the second stage of grinding, after moving a distance X, the output end of the locking cylinder (4) remains in the retracted state, the output end of the blocking cylinder (3) retracts, the torque motor (21) drives the rotating arm (5) to rotate and generate forward pressure displacement, and the torque motor (21) maintains a constant grinding pressure output, so that the grinding wheel (7) always contacts and presses the edge of the electronic glass with constant pressure. The encoder converts the forward pressure displacement of the rotating arm (5) into an electrical signal and transmits it to the PID controller. The PID controller processes the electrical signal and adjusts the output of the torque motor (21) in a closed loop. S6. In the third stage of grinding, the output end of the locking cylinder (4) is kept in the retracted state. When the distance between the grinding wheel (7) and the other corner of the electronic glass is Y, the output end of the blocking cylinder (3) extends and blocks the stop block (8), so that the grinding wheel (7) is separated from the edge of the electronic glass. S7. Grinding stage 4: The grinding wheel (7) continues to move along the edge of the electronic glass and grinds for a distance of Y. Grinding ends. S8. Change the grinding groove, adjust the height of the grinding device by adjusting the cutting device, thereby adjusting the cutting position of the grinding wheel (7), change the grinding groove for grinding the next piece of electronic glass, and after each grinding groove has been ground for one round, start the next round of cyclic grinding. The control method is used to control the device for automatically adjusting the position of the grinding mold and the electronic glass for display. The device for automatically adjusting the position of the grinding mold and the electronic glass for display includes a grinding platform for supporting the electronic glass, a positioning device for fixing the electronic glass to the grinding platform, a grinding device for grinding, a cutting device for moving the grinding device, and an alarm device for issuing an alarm. The grinding device includes a mounting plate (1), on which a pressure output unit (2), a stop cylinder (3), and a locking cylinder (4) are provided. The pressure output unit (2) includes a torque motor (21) and an encoder. The PID controller, the torque motor (21) is equipped with a rotating arm (5), the output end of the torque motor (21) of the pressure output unit (2) is connected to one end of the rotating arm (5), the other end of the rotating arm (5) is equipped with a grinding wheel motor (6), the output end of the grinding wheel motor (6) is equipped with a grinding wheel (7), the blocking cylinder (3) and the locking cylinder (4) are respectively set on both sides of the rotating arm (5), the rotating arm (5) is equipped with a stop block (8), the two sides of the stop block (8) are respectively matched with the output ends of the blocking cylinder (3) and the locking cylinder (4), and the grinding wheel (7) is equipped with several sets of grinding grooves.

2. The control method of the device for automatically adjusting the position of the mold and the electronic glass for display according to claim 1, characterized in that, in In step S1, the position of the grinding wheel (7) is projected onto the vertical line between the torque motor (21) and the electronic glass. The distance between the projection point of the grinding wheel (7) and the torque motor (21) is set to A. When the rotating arm (5) is at the origin, the distance A is set to the origin distance A1. The rotating arm (5) can rotate forward or backward from the origin. The range of forward or backward movement of the projection point of the grinding wheel (7) on the vertical line is set to A2~A3. The effective grinding distance A is set to the effective grinding distance A4. The actual grinding distance A is set to the actual grinding distance A5.

3. The control method of the device for automatically adjusting the position of the mold and the electronic glass for display according to claim 2, characterized in that, in In step S5, the PID controller compares the effective grinding distance A4 with the actual grinding distance A5 and outputs a signal to adjust the output of the torque motor (21), which drives the rotating arm (5) to rotate and adjusts the position of the grinding wheel (7) to adjust the actual grinding distance A5.

4. The control method of the device for automatically adjusting the position of the mold and the electronic glass for display according to claim 3, characterized in that, in In step S5, if the effective grinding distance A4 is equal to the actual grinding distance A5, the torque motor (21) maintains output; if the effective grinding distance A4 is greater than the actual grinding distance A5, that is, the grinding wheel (7) is closer to the electronic glass and the rotating arm (5) is squeezed in the opposite direction, then the cutting depth needs to be reduced and the actual grinding distance A5 needs to be reduced; if the effective grinding distance A4 is less than the actual grinding distance A5, that is, the grinding wheel (7) is farther from the electronic glass and the forward displacement space of the rotating arm (5) is larger, then the cutting depth needs to be increased and the actual grinding distance A5 needs to be increased.

5. The control method of the device for automatically adjusting the position of the mold and the electronic glass for display according to any one of claims 2 to 4, characterized in that, in In step S1, the safe distance range for the projection point of the grinding wheel (7) position to move forward or backward on the vertical line is A6 to A7. When the actual grinding distance A5 is less than A6 or greater than A7, the alarm device will sound an alarm.

6. The control method for the device for automatically adjusting the position of the mold and the electronic glass for display according to claim 5, characterized in that, In steps S1 to S4, the alarm device is turned off; in step S5, the alarm device is turned on; and in step S6, the alarm device is turned off.

7. The control method of the device for automatically adjusting the position of the mold and the electronic glass for display according to claim 6, characterized in that, in When step S5 ends and step S6 begins, the PID controller records the actual grinding distance A5 of the grinding wheel (7) at this time, that is, the actual grinding distance A5 of the current grinding groove. After each grinding groove completes a grinding cycle, when entering the next round of grinding, the PID controller automatically corrects the actual grinding distance A5 of each grinding groove in the previous round.

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