Pure circle cutting equipment for circular glass cover plate

Abstract

The utility model discloses pure circle cutting equipment for a circular glass cover plate. The pure circle cutting equipment comprises a cutting platform, a vibration cutting knife wheel assembly, a motion control system and a pressure grading adjusting module. The cutting platform fixes a glass plate through a vacuum adsorption device, the vibration cutting knife flywheel assembly drives a knife flywheel body to vibrate in the direction perpendicular to the cutting direction through a high-frequency vibration driving module so as to improve the cutting precision, and the motion control system achieves movement of a knife flywheel along a preset circular path through an X-axis motion mechanism, a Y-axis motion mechanism and a rotating shaft. And the pressure grading adjusting module applies grading pressure to different cutting paths to optimize the splitting effect. According to the equipment, a circular path is directly cut through three-axis linkage, the CNC machining amount is reduced, the edge cracking probability is reduced in combination with high-frequency vibration, stress concentration is avoided through graded pressure, high-precision and high-efficiency pure circular cutting can be achieved, the finished product yield is increased, the material and machining cost is reduced, and the equipment is suitable for industrial production.

Description

Technical Field

[0001] This utility model relates to the technical field of glass processing, and in particular to a pure circle cutting device for circular glass cover plates. Background Technology

[0002] In the field of glass processing technology, the processing technology of circular glass covers (such as mobile phone screens, tablet panels, etc.) has always been a key focus of the industry.

[0003] Traditional processing of round glass covers typically employs a "square cutting + CNC edge grinding" process. The typical flow is as follows: First, the glass sheet is cut into a square using a traditional cutting wheel. Then, a CNC (Computer Numerical Control) machine tool repeatedly grinds the corners and edges of the square glass, gradually shaping it into a round shape. Finally, it undergoes fine polishing to form the finished product. However, this traditional process has significant drawbacks. The need to grind from square to round is cumbersome, with each CNC machining step taking several hours and requiring frequent mold changes, thus limiting overall production capacity. Furthermore, a large amount of scrap material needs to be removed after square cutting (as shown in the attached image). Figure 2 (As shown in the shaded area), glass utilization is typically less than 60%, especially for large-sized circular cover plates, resulting in high material costs. Multiple machining operations easily lead to defects such as micro-cracks and edge chipping at the glass edges, with an appearance defect rate exceeding 15%, requiring extensive rework or scrapping. CNC equipment requires significant investment, consumes a lot of energy, and has a long processing time, making overall cost control difficult. Therefore, current glass processing suffers from low processing efficiency, serious material waste, low finished product appearance yield, and high manufacturing costs. Utility Model Content

[0004] This invention aims to at least partially solve one of the problems in related technologies. Therefore, one objective of this invention is to provide a circular cutting device for circular glass covers, which optimizes the cutting path, sets pressure in stages, and uses a special vibrating cutting wheel to reduce CNC machining, improve processing efficiency, enhance the yield of finished products, and lower costs.

[0005] A perfect circle cutting device for a circular glass cover plate, the device comprising:

[0006] A cutting platform for fixing glass sheets, the cutting platform being equipped with a vacuum adsorption device;

[0007] A vibratory cutting wheel assembly includes a wheel body and a high-frequency vibration drive module. The wheel body is used to perform cutting, and the high-frequency vibration drive module is used to drive the wheel body to generate high-frequency vibration perpendicular to the cutting direction.

[0008] The motion control system includes an X-axis motion mechanism, a Y-axis motion mechanism, and a rotary axis. The motion control system is used to drive the vibrating cutting wheel assembly to move along a preset circular path.

[0009] A pressure grading adjustment module is connected to the vibrating cutting wheel assembly and is used to apply graded cutting pressure to different cutting paths.

[0010] Furthermore, the cutting platform includes a horizontal motion mechanism and an installation platform, the installation platform being movably mounted on the horizontal motion mechanism, and the vacuum adsorption device being mounted on the installation platform.

[0011] Furthermore, the installation platform is provided with multiple vacuum adsorption holes arranged in an array. The vacuum adsorption device includes a vacuum pump and a connecting pipe. One end of the connecting pipe is connected to the vacuum pump, and the other end is connected to the multiple vacuum adsorption holes.

[0012] Furthermore, the vibratory cutting wheel assembly also includes a mounting plate and a drive component. The X-axis motion mechanism is connected to the cutting platform, the Y-axis motion mechanism is connected to the X-axis motion mechanism, the mounting plate is mounted on the Y-axis motion mechanism, the drive component is mounted on the mounting plate, the drive component is driven to one end of the rotating shaft, the other end of the rotating shaft is connected to the wheel body, and the high-frequency vibration drive module is mounted on the rotating shaft.

[0013] Furthermore, the pressure grading adjustment module includes an electric servo pressure cylinder and a pressure sensor. The drive end of the electric servo pressure cylinder is connected to the mounting plate to drive the mounting plate to reciprocate along the Y-axis direction. The pressure sensor is mounted on the mounting plate.

[0014] Furthermore, the Y-axis motion mechanism has a guide groove in the vertical direction, and the mounting plate has a guide block, which is slidably connected in the guide groove.

[0015] Furthermore, the cutter wheel body of the vibration cutting wheel assembly is made of cemented carbide or diamond-coated material.

[0016] Furthermore, the high-frequency vibration drive module is an electromagnetic vibrator or a piezoelectric vibrator.

[0017] Furthermore, the cutting platform system is made of marble or cast iron.

[0018] Furthermore, the vibratory cutting wheel assembly also includes a viewing angle positioning device, which is connected to the Y-axis motion mechanism.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] The circular glass cover plate cutting device of this application uses a vacuum adsorption device to fix the glass plate on the cutting platform to ensure cutting stability; the vibratory cutting wheel assembly uses the wheel body to perform circular cutting, and works with the vibration drive module to achieve high-frequency vibration to improve cutting accuracy; the motion control system includes an X-axis motion mechanism and a Y-axis motion mechanism, and uses a rotary axis, the X-axis motion mechanism and the Y-axis motion mechanism to realize the position movement of the cutting wheel, and the rotary axis to realize the 360° rotation of the cutting wheel, and works with the X / Y axis to complete circular trajectory interpolation, thereby realizing the precise positioning of the circular cutting path; the pressure graded adjustment module applies graded pressure to different cutting paths to optimize the cleaving effect. The working principle of this application is as follows: a glass plate is placed on a cutting platform and fixed by vacuum adsorption; the X-axis motion mechanism and the Y-axis motion mechanism move the cutting wheel to the target cutting position, and the cutting wheel moves along a preset circular path while cutting the glass with high-frequency vibration; the motion control system automatically switches the pressure value of the pressure grading adjustment module according to the path segment, with high pressure on the outer circle cutting through the glass and low pressure on the inner circle pre-cutting; after cutting, a near-circular glass blank is obtained by mechanical cleaving device or manual separation; finally, a small amount of polishing is performed on the edges of the blank to complete the final product.

[0021] The circular glass cover plate cutting equipment disclosed in this application utilizes high-frequency vibration to reduce cutting resistance, thereby lowering the probability of edge chipping compared to traditional cutting wheels. Furthermore, it intelligently switches pressure based on the cutting path, avoiding stress concentration caused by traditional single-cutting and improving the yield rate of cut pieces. Additionally, the three-axis linkage achieves seamless circular cutting, reducing CNC machining compared to traditional square cutting followed by edge grinding. Therefore, this equipment can achieve high-precision, high-efficiency circular cutting of circular glass covers, significantly optimizing the pain points of traditional processes and meeting the needs of industrial production. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] In the attached image:

[0025] Figure 1 This is a schematic diagram of a structure of an embodiment of the circular glass cover plate cutting device of this application;

[0026] Figure 2This is a schematic diagram of the structure after placing the product in an embodiment of the circular glass cover cutting device of this application.

[0027] Figure label:

[0028] 1. A circular cutting device for a circular glass cover plate; 10. Cutting platform; 11. Vacuum adsorption device; 12. Horizontal motion mechanism; 13. Mounting platform; 131. Vacuum adsorption hole; 20. Vibration cutting wheel assembly; 21. Cutting wheel body; 22. High-frequency vibration drive module; 23. Mounting plate; 24. Drive component; 25. View positioning device; 30. Motion control system; 31. X-axis motion mechanism; 32. Y-axis motion mechanism; 321. Guide groove; 33. Rotary shaft; 40. Pressure graded adjustment module; 41. Electric servo pressure cylinder; Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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 device or element 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.

[0031] like Figure 1 , Figure 2 As shown, the circular glass cover plate cutting device 1 provided in this application includes:

[0032] A cutting platform 10 is used to fix glass sheets, and the cutting platform 10 is equipped with a vacuum adsorption device 11.

[0033] The vibratory cutting wheel assembly 20 includes a wheel body 21 and a high-frequency vibration drive module 22. The wheel body 21 is used to perform cutting, and the high-frequency vibration drive module 22 is used to drive the wheel body 21 to generate high-frequency vibration perpendicular to the cutting direction.

[0034] The motion control system 30 includes an X-axis motion mechanism 31, a Y-axis motion mechanism 32, and a rotary axis 33. The motion control system 30 is used to drive the vibrating cutting wheel assembly 20 to move along a preset circular path.

[0035] A pressure grading adjustment module 40 is connected to the vibrating cutting wheel assembly 20 and is used to apply graded cutting pressure to different cutting paths.

[0036] The vacuum adsorption device 11 of the cutting platform 10 tightly fixes the glass plate with negative pressure to prevent displacement during cutting (in traditional processes, unstable fixing can easily lead to cutting deviation or chipping).

[0037] In the vibratory cutting wheel assembly 20, the high-frequency vibration drive module 22 causes the wheel body 21 to generate high-frequency vibration perpendicular to the cutting direction, which can reduce cutting resistance and lower the probability of glass edge breakage (traditional cutting wheels are prone to micro-cracks due to stress concentration, see background technology). In conjunction with the X / Y axes and rotation axis 33 of the motion control system 30, the wheel can move precisely along a preset circular path, achieving "direct circular cutting" instead of the traditional "square cutting + edge grinding," significantly reducing CNC machining workload.

[0038] The pressure grading adjustment module 40 applies graded pressure to different cutting paths (such as outer ring and inner ring). For example, the outer ring uses high pressure to cut through the glass, while the inner ring uses low pressure for pre-cutting, avoiding stress concentration caused by a single cut and improving the yield of the broken glass.

[0039] In one embodiment, the cutting platform 10, the vibrating cutting wheel assembly 20, the motion control system 30, and the pressure grading adjustment module 40 described above can be coordinated by the control system to achieve parameter setting, data monitoring, and automated processing, thereby improving production efficiency and reducing labor costs. For example, the control system can be a commonly used PLC controller.

[0040] Furthermore, the cutting platform 10 includes a horizontal motion mechanism 12 and a mounting platform 13, the mounting platform 13 being movably mounted on the horizontal motion mechanism 12, and the vacuum adsorption device 11 being mounted on the mounting platform 13.

[0041] The horizontal motion mechanism 12 (such as a guide rail slider) allows the mounting platform 13 to move laterally / vertically, adapting to glass sheets of different specifications. This eliminates the need for frequent changes in equipment and tooling, shortens changeover time, and improves flexible production capabilities.

[0042] The movable mounting platform 13 can correct the placement deviation of the board material. In conjunction with the vision positioning system, it can realize the "automatic recognition-position compensation" function, avoid cutting misalignment caused by board material offset, and reduce the edge deviation rate.

[0043] The horizontal motion mechanism 12 (such as a slide rail, lead screw, etc.) can drive the mounting platform 13 to move horizontally, allowing the glass sheet to be dynamically adjusted in position during the cutting process. This, combined with the movement of the vibrating cutting wheel assembly 20, enables complex path cutting or multi-station continuous processing. For example, when it is necessary to cut circular glass of different sizes, the mounting platform 13 can be quickly positioned by the horizontal motion mechanism 12, reducing changeover time.

[0044] Furthermore, the installation platform 13 is provided with a plurality of vacuum adsorption holes 131, which are arranged in an array. The vacuum adsorption device 11 includes a vacuum pump and a connecting pipe. One end of the connecting pipe is connected to the vacuum pump, and the other end is connected to the plurality of vacuum adsorption holes 131.

[0045] The negative pressure generated by the vacuum pump is transmitted to each vacuum adsorption hole 131 via the connecting pipe, achieving firm adsorption of the glass sheet and ensuring the stability of the sheet during the cutting process. This array-arranged design of the vacuum adsorption holes 131 not only increases the adsorption area but also makes the adsorption force distribution more uniform, avoiding deformation or breakage of the sheet due to excessive local pressure. In addition, the adjustability of the vacuum adsorption device 11 allows the equipment to adapt to glass sheets of different thicknesses and materials, further improving the versatility and flexibility of the equipment.

[0046] The array of vacuum adsorption holes 131 can form a uniform negative pressure area under the glass plate, avoiding plate deformation or uneven local stress caused by single-point adsorption, and achieving stable adsorption of the glass plate.

[0047] Furthermore, the vibratory cutting wheel assembly 20 also includes a mounting plate 23 and a drive component 24. The X-axis motion mechanism 31 is connected to the cutting platform 10, the Y-axis motion mechanism 32 is connected to the X-axis motion mechanism 31, the mounting plate 23 is mounted on the Y-axis motion mechanism 32, the drive component 24 is mounted on the mounting plate 23, the drive component 24 is driven to one end of the rotating shaft 33, the other end of the rotating shaft 33 is connected to the cutting wheel body 21, and the high-frequency vibration drive module 22 is mounted on the rotating shaft 33.

[0048] The drive component 24 transmits power to the rotating shaft 33 via precise mechanical transmission, thereby driving the cutter wheel body 21 to rotate at high speed. Simultaneously, the high-frequency vibration drive module 22 generates high-frequency micro-vibrations under the action of the rotating shaft 33. These micro-vibrations significantly improve cutting efficiency and reduce frictional resistance during the cutting process, resulting in smoother cutting edges and reduced burrs and cracks. The mounting plate 23, serving as the support structure for the drive component 24 and the rotating shaft 33, ensures the stability and precision of the entire vibratory cutting cutter wheel assembly 20. Through the coordinated action of the X-axis motion mechanism 31 and the Y-axis motion mechanism 32, the vibratory cutting cutter wheel assembly 20 can perform precise two-dimensional movement on the cutting platform 10, achieving a perfect circle cut on the circular glass cover. This design not only improves cutting accuracy but also greatly enhances the automation level of the equipment, providing an efficient and reliable solution for the cutting and processing of circular glass covers.

[0049] The X-axis and Y-axis motion mechanisms 32 (such as linear motors and ball screws) are responsible for the planar position movement of the cutter wheel, while the rotary shaft 33 drives the cutter wheel body 21360° to rotate. The three work together to complete circular trajectory interpolation (i.e., curve cutting is achieved through the synthesis of linear and rotary motion). Compared with the traditional process of "grinding the edge after square cutting", this structure can directly cut along a circular path, reducing the CNC edge grinding steps and shortening the processing time.

[0050] The drive component 24 (such as a servo motor) directly drives the cutter wheel body 21 through the rotating shaft 33, reducing the transmission chain gap and improving motion accuracy; the high-frequency vibration drive module 22 is integrated into the rotating shaft 33, so that the vibration energy is directly transmitted to the cutter wheel, improving the vibration cutting effect.

[0051] Furthermore, the pressure grading adjustment module 40 includes an electric servo pressure cylinder 41 and a pressure sensor. The drive end of the electric servo pressure cylinder 41 is connected to the mounting plate 23 to drive the mounting plate 23 to reciprocate along the Y-axis direction. The pressure sensor is mounted on the mounting plate 23.

[0052] The electric servo pressure cylinder 41, through precise control, can adjust the pressure applied to the cutter wheel body 21 according to cutting requirements. This graded pressure adjustment function ensures the stability and uniformity of pressure during the cutting process, further improving cutting accuracy and edge quality. Simultaneously, a pressure sensor monitors pressure changes on the mounting plate 23 in real time, feeding the signal back to the control system to achieve closed-loop control. When the pressure deviates from the preset value, the control system can quickly adjust the output of the electric servo pressure cylinder 41, ensuring the cutting process is always in optimal condition. This design not only improves cutting efficiency but also enhances the stability and reliability of the equipment, providing a more refined and controllable solution for the cutting and processing of circular glass covers.

[0053] The electric servo pressure cylinder 41 can adjust its output pressure in real time according to the control system's instructions (e.g., applying high pressure when cutting the outer ring and reducing pressure when pre-cutting the inner ring). The pressure sensor provides real-time feedback of the current pressure value, forming a closed-loop control to ensure precise execution of pressure grading. For example, when cutting thick glass, the outer ring requires greater pressure to penetrate the sheet, while excessive pressure in the inner ring can easily lead to internal cracks. Grading pressure can optimize the quality of the cut.

[0054] Furthermore, the Y-axis motion mechanism 32 has a guide groove 321 in the vertical direction, and the mounting plate 23 has a guide block, which is slidably connected in the guide groove 321.

[0055] The coordinated design of the guide groove 321 and the guide block makes the movement of the mounting plate 23 in the Y-axis direction more stable, reducing wobbling during the cutting process and further improving cutting accuracy. The design of the guide groove 321 also effectively limits the movement trajectory of the mounting plate 23, ensuring the accuracy of the cutting path. Furthermore, the sliding connection between the guide groove 321 and the guide block makes the adjustment of the mounting plate 23 smoother, improving the overall operating efficiency of the equipment. This structural design not only enhances the stability of the equipment but also provides strong support for the precise cutting of circular glass covers.

[0056] The cooperation between the guide groove 321 and the guide block provides rigid guidance for the up-and-down movement (Y-axis direction) of the mounting plate 23, restricts its lateral sway, ensures the accurate movement trajectory of the pressure grading adjustment module 40, and avoids uneven cutting pressure or blade wheel position deviation caused by the offset of the mounting plate 23.

[0057] Furthermore, the blade body 21 of the vibration cutting blade assembly 20 is made of cemented carbide or diamond-coated material.

[0058] The use of cemented carbide (such as tungsten steel) or diamond coatings provides extremely high hardness and wear resistance, extending the lifespan of the cutting wheel. This material choice for the cutting wheel body 21 allows it to easily handle the hardness of circular glass covers during cutting, ensuring smooth and even cutting edges and reducing debris generation. Simultaneously, the excellent wear resistance of the cemented carbide or diamond coating means that the cutting wheel assembly maintains a sharp cutting edge even after prolonged use, reducing the need for frequent cutting wheel replacements and lowering maintenance costs. Furthermore, this material exhibits good thermal stability, effectively resisting the high temperatures generated by friction during high-speed cutting, ensuring cutting quality and safe equipment operation. In summary, the material selection for the cutting wheel body 21 of the vibratory cutting cutting wheel assembly 20 provides an efficient and stable solution for the perfect circular cutting of circular glass covers.

[0059] Furthermore, the high-frequency vibration drive module 22 is an electromagnetic vibrator or a piezoelectric vibrator.

[0060] Both types of vibrators provide stable and controllable high-frequency vibration, making them key components for achieving perfectly circular cutting of circular glass covers. Electromagnetic vibrators generate vibration through rapid changes in electromagnetic force; their simple structure and ease of control allow them to provide stable vibration frequency and amplitude. Piezoelectric vibrators, on the other hand, utilize the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical vibration, offering advantages such as fast response and high precision. In practical applications, the appropriate vibrator type can be selected based on cutting requirements and equipment design. The selection of the high-frequency vibration drive module 22 ensures stable and controllable relative movement between the cutter wheel and the glass cover during the cutting process, thereby achieving high-quality perfectly circular cutting.

[0061] Furthermore, the cutting platform 10 system is made of marble or cast iron.

[0062] Marble or cast iron materials possess excellent rigidity and stability, effectively resisting vibrations and deformations generated during cutting, ensuring the flatness and precision of the cutting platform 10. This material selection allows the cutting platform 10 to maintain stable performance even after prolonged use, reducing cutting errors caused by platform deformation. Simultaneously, marble or cast iron materials also exhibit good wear resistance and corrosion resistance, maintaining a long service life even in harsh cutting environments. Furthermore, these materials are easy to process and clean, facilitating equipment maintenance and upkeep. In summary, the material selection of the cutting platform 10 system provides a solid foundation and guarantee for the perfect circular cutting of circular glass covers.

[0063] Furthermore, the vibratory cutting wheel assembly 20 also includes a viewing angle positioning device 25, which is connected to the Y-axis motion mechanism 32.

[0064] The viewing angle positioning device 25 (such as an industrial camera) can capture the position or cutting mark of the glass plate in real time, and feed it back to the control system through image recognition technology to automatically adjust the initial position of the cutter wheel or the cutting path to ensure accurate cutting starting point.

[0065] This design enhances the equipment's intelligence, reduces manual positioning errors, and improves cutting accuracy. The application of the viewing angle positioning device 25 allows the equipment to adapt to glass sheets of different shapes and sizes, further enhancing its flexibility and versatility. Through image recognition technology, the control system can acquire the glass sheet's position information in real time, automatically adjusting cutting parameters to achieve precise cutting. This automated and intelligent cutting method not only improves production efficiency but also reduces labor costs, bringing a revolutionary change to the cutting and processing of circular glass covers.

[0066] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A device for cutting a circular glass cover plate into perfect circles, characterized in that, include: A cutting platform for fixing glass sheets, the cutting platform being equipped with a vacuum adsorption device; A vibratory cutting wheel assembly includes a wheel body and a high-frequency vibration drive module. The wheel body is used to perform cutting, and the high-frequency vibration drive module is used to drive the wheel body to generate high-frequency vibration perpendicular to the cutting direction. The motion control system includes an X-axis motion mechanism, a Y-axis motion mechanism, and a rotary axis. The motion control system is used to drive the vibrating cutting wheel assembly to move along a preset circular path. A pressure grading adjustment module is connected to the vibrating cutting wheel assembly and is used to apply graded cutting pressure to different cutting paths.

2. The circular cutting device for a circular glass cover plate according to claim 1, characterized in that, The cutting platform also includes a horizontal motion mechanism and an installation platform. The installation platform is movably mounted on the horizontal motion mechanism, and the vacuum adsorption device is located on the installation platform.

3. The circular cutting device for a circular glass cover plate according to claim 2, characterized in that, The installation platform is provided with multiple vacuum adsorption holes, which are arranged in an array. The vacuum adsorption device includes a vacuum pump and a connecting pipe. One end of the connecting pipe is connected to the vacuum pump, and the other end is connected to the multiple vacuum adsorption holes.

4. The circular cutting equipment for a circular glass cover plate according to claim 1, characterized in that, The vibratory cutting wheel assembly also includes a mounting plate and a drive component. The X-axis motion mechanism is connected to the cutting platform, the Y-axis motion mechanism is connected to the X-axis motion mechanism, the mounting plate is mounted on the Y-axis motion mechanism, the drive component is mounted on the mounting plate, the drive component is driven to one end of the rotating shaft, the other end of the rotating shaft is connected to the wheel body, and the high-frequency vibration drive module is mounted on the rotating shaft.

5. The circular cutting device for a circular glass cover plate according to claim 4, characterized in that, The pressure grading adjustment module includes an electric servo pressure cylinder and a pressure sensor. The drive end of the electric servo pressure cylinder is connected to the mounting plate to drive the mounting plate to reciprocate along the Y-axis. The pressure sensor is mounted on the mounting plate.

6. The circular cutting device for a circular glass cover plate according to claim 5, characterized in that, The Y-axis motion mechanism has a guide groove in the vertical direction, and the mounting plate has a guide block, which is slidably connected in the guide groove.

7. The circular cutting device for a circular glass cover plate according to claim 1, characterized in that, The cutter wheel body of the vibration cutting wheel assembly is made of cemented carbide or diamond-coated material.

8. The circular cutting equipment for a circular glass cover plate according to claim 1, characterized in that, The high-frequency vibration drive module is an electromagnetic vibrator or a piezoelectric vibrator.

9. The circular cutting device for a circular glass cover plate according to claim 1, characterized in that, The cutting platform is made of marble or cast iron.

10. The circular cutting device for a circular glass cover plate according to claim 1, characterized in that, The vibratory cutting wheel assembly also includes a viewing angle positioning device, which is connected to the Y-axis motion mechanism.

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