Mirror glass substrate positioning cutting table

Abstract

The application discloses a mirror glass substrate positioning cutting table and belongs to the technical field of glass positioning and cutting. In order to solve the problem that slight warping deformation is easily generated in the production and transfer process of the mirror glass substrate, the warping is not easy to detect and level, and the processing quality of the mirror glass substrate is affected, the application comprises a workbench, a moving assembly is arranged on the top of the workbench, a laser cutting head is installed on one side of the moving assembly, a positioning assembly is arranged in the workbench, a lifting assembly is arranged in the workbench, a plurality of offset compensation assemblies for self-adapting center offset and eliminating the pull-down coaxiality error are uniformly arranged in the lifting assembly, the mirror glass substrate warping can be followed to realize the conformal attachment of the suction cup, the deflection inclination data at all places are collected in real time, the out-of-gauge working condition of the substrate warping is automatically recognized and early warning screening is carried out, the unqualified workpieces are avoided to be machined, and the glass cutting waste rate is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of glass positioning and cutting technology, specifically to a positioning and cutting table for mirror glass substrates. Background Technology

[0002] Mirror glass substrate is a special type of glass sheet with an optical reflective film coated on its surface. It has advantages such as good light transmission and high reflection accuracy, and is used in optical instruments, smart homes and automotive displays. The mirror glass substrate positioning and cutting stage is an important piece of equipment for the precision processing of mirror glass. It is mainly used in the laser cutting process to support and position the mirror glass substrate, and works with the XYZ translational laser cutting head to complete the cutting operation of the mirror glass substrate, providing a unified and stable processing benchmark for laser cutting.

[0003] Current mirror glass substrate positioning and cutting tables have drawbacks. Because mirror glass substrates are brittle materials, they are prone to slight warping deformation during production and transportation. This makes it difficult for the substrate to fully adhere to the rigid table surface and the fixed suction cup when it is placed on the worktable, resulting in small gaps in some areas. Furthermore, it is not easy to detect and level the warping, which can easily cause defects such as glass chipping and uneven cuts during the cutting process, thus affecting the processing quality of the mirror glass substrate.

[0004] To address the above issues, a positioning and cutting stage for mirror glass substrates is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning and cutting stage for mirror glass substrates. By using this invention, the problem in the background that slight warping deformation is easily generated during the production and transportation of mirror glass substrates, and that it is not easy to detect and level the warping, thus affecting the processing quality of mirror glass substrates is solved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A positioning and cutting stage for a mirror glass substrate includes a worktable, a moving component on the top of the worktable, a laser cutting head mounted on one side of the moving component, a positioning component inside the worktable, a lifting component inside the worktable, a plurality of offset compensation components evenly arranged inside the lifting component for adaptive center offset and elimination of pull-down coaxiality error, a tilt compensation component on the top of each offset compensation component for multi-angle deflection and adaptation to the warped surface of the glass, a tilt sensor installed inside the tilt compensation component for acquiring the deflection tilt angle and detecting the local warping of the glass, an elastic adaptation component for elastic buffering and adaptively fitting the bottom surface of the glass, a suction cup component on the top of the elastic adaptation component, and a vacuum component inside the worktable, the suction cup component being connected to the vacuum component.

[0007] Furthermore, the moving component includes a first electric slide rail fixedly connected to the top of the worktable, a second electric slide rail fixedly connected to one side of the first electric slide rail, a third electric slide rail fixedly connected to one side of the second electric slide rail, and the laser cutting head fixedly connected to the third electric slide rail.

[0008] Furthermore, the positioning component includes a positioning plate fixedly connected to the workbench, and a plurality of first through holes are evenly provided on one side of the positioning plate.

[0009] Furthermore, the lifting assembly includes a base plate body fixedly connected to the workbench. Two electric push rods are fixedly installed on one side of the base plate body. The movable ends of the two electric push rods are fixedly connected to a lifting plate. The lifting plate has several second through holes, which are coaxially arranged with several first through holes. Guide rods are fixedly connected to the four corners of the bottom of the lifting plate, and the guide rods are slidably connected to the base plate body.

[0010] Furthermore, the offset compensation component includes several first springs fixedly connected inside the lifting plate. One end of each of the several first springs is fixedly connected to a circular plate. The circular plate is coaxially arranged with the second through hole. Several balls are rolledly connected to both sides of the circular plate. The balls are rolledly connected to the inner wall of the lifting plate. A fixed cylinder is fixedly connected inside the circular plate.

[0011] Furthermore, the skew compensation assembly includes a rotating ball that is rolled to the top of the fixed cylinder, an inclination sensor that is fixedly installed inside the rotating ball, a plurality of second springs that are fixedly connected to the outer wall of the rotating ball, the other ends of the plurality of second springs that are fixedly connected to the inner wall of the fixed cylinder, a connecting pipe that is fixedly connected inside the rotating ball, and a first corrugated pipe that is connected to one end of the connecting pipe.

[0012] Furthermore, the elastic adaptation component includes two limiting cylinders fixedly connected inside the rotating ball, each limiting cylinder having a sliding rod slidably connected inside it, a third spring fixedly connected to one side of the sliding rod, and one end of the third spring fixedly connected to the inner wall of the limiting cylinder.

[0013] Furthermore, the suction cup assembly includes a suction cup frame fixedly connected to one end of the slide rod, a first corrugated tube communicating with the suction cup frame, a rubber ring provided on one side of the suction cup frame, and several conical suction holes extending through one side of the suction cup frame.

[0014] Furthermore, the vacuum assembly includes a vacuum pump fixedly installed in the workbench. The vacuum pump's suction port is connected to a flexible hose. One end of the flexible hose is connected to a lifting pipe. One end of the lifting pipe is evenly connected to several branch pipes. The branch pipes are respectively connected to several fixed cylinders. A vacuum sensor is installed inside the lifting pipe.

[0015] Furthermore, each of the aforementioned offset compensation components is equipped with a sealing suction cup assembly to achieve a sealing self-testing assembly for the vacuum pipeline's sealing performance. The sealing self-testing assembly includes a second corrugated pipe fixedly connected to the bottom of the fixed cylinder. A sealing plate is fixedly connected to one end of the second corrugated pipe. A fourth spring is fixedly connected to one side of the sealing plate. One end of the fourth spring is fixedly connected to one end of the fixed cylinder. A push rod is fixedly connected to one side of the sealing plate and is slidably connected to the fixed cylinder. Several limiting posts are fixedly connected inside the suction cup frame. A pushing ring is slidably connected to the outer wall of the several limiting posts. A fifth spring is fixedly connected to one side of the pushing ring. One end of the fifth spring is fixedly connected to the inner wall of the suction cup frame. Several conical sealing blocks are fixedly connected to one side of the pushing ring. The several conical sealing blocks are coaxially arranged with several conical suction holes. Several connecting rods are fixedly connected inside the pushing ring. A driven rod is fixedly connected to one end of each connecting rod and is coaxially arranged with the push rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the skew compensation component, the elastic adaptation component and the tilt sensor, the suction cup can follow the warping of the mirror glass substrate to achieve conformal bonding, collect the deflection tilt angle data at various points in real time, automatically identify the substrate warping exceeding the standard and provide early warning screening, avoid unqualified workpieces from being processed, and effectively reduce the scrap rate of glass cutting. Through the cooperation of the lifting component, offset compensation component and skew compensation component, adaptive radial displacement compensation is achieved during the pull-down leveling process, eliminating the coaxiality error between the suction cup and the transmission shaft, preventing the mechanism from jamming, and correcting the substrate with slight elastic warping, so that the substrate fits the uniform processing reference surface. By setting up the elastic adaptation component, the suction cup relies on the elastic deformation of the spring to buffer the impact pressure of feeding when carrying the glass, adaptively matching the local height difference of the substrate, maintaining the continuous sealing and adhesion between the suction cup and the bottom surface of the glass, preventing the mirror glass from being damaged by the instant of feeding, and ensuring the initial airtightness of vacuum adsorption. By coordinating the sealing self-test component and the vacuuming component, the equipment can automatically seal the suction holes of each suction cup under no-load conditions, automatically carry out pressure maintenance and leak detection of the vacuum pipeline, promptly detect pipeline aging and joint leakage faults, eliminate the need for manual inspection, and ensure the stability of adsorption and positioning. By cooperating with the positioning component and the array-type suction cup component, the glass is fully supported and limited after the substrate is corrected. Combined with continuous negative pressure locking, a composite positioning structure is formed to suppress substrate offset and vibration during processing, improve the accuracy of laser cutting trajectory, and reduce glass chipping and dimensional deviation problems. By cooperating with the moving components and the laser cutting head, high-precision XYZ three-axis movement of the laser cutting head can be achieved, enabling stress-free contour cutting of the mirror glass substrate after leveling and positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 This is a partial side view of the structure of the present invention; Figure 4 for Figure 3 Enlarged view of point B; Figure 5 This is a cross-sectional structural diagram showing the connection relationship between the positioning component, lifting component, offset compensation component, skew compensation component, suction cup component, and sealing self-test component of the present invention. Figure 6 for Figure 5 Enlarged view of point C; Figure 7 for Figure 6 Enlarged view of point D; Figure 8 This is a cross-sectional structural diagram showing the connection relationship between the positioning component, lifting component, offset compensation component, and vacuuming component of the present invention. Figure 9 This is a state diagram of the correction process of the mirror glass substrate of the present invention.

[0018] In the diagram: 1. Workbench; 2. Moving assembly; 21. First electric slide rail; 22. Second electric slide rail; 23. Third electric slide rail; 3. Laser cutting head; 4. Positioning assembly; 41. Positioning plate; 42. First through hole; 5. Lifting assembly; 51. Base plate body; 52. Electric push rod; 53. Lifting plate; 54. Guide rod; 55. Second through hole; 6. Offset compensation assembly; 61. First spring; 62. Circular plate; 63. Ball bearing; 64. Fixed cylinder; 7. Skew compensation assembly; 71. Rotating ball; 72. Second spring; 73. Connecting pipe; 74. First bellows; 8. Tilt sensor; 9. 91. Elastic Adaptive Component; 92. Limiting Cylinder; 93. Third Spring; 94. Slide Rod; 10. Suction Cup Assembly; 101. Suction Cup Frame; 102. Rubber Ring; 103. Conical Suction Hole; 20. Vacuum Assembly; 201. Vacuum Pump; 202. Hoses; 203. Lifting Pipe; 204. Branch Pipe; 205. Vacuum Sensor; 30. Sealing Self-Check Assembly; 301. Second Bellows; 302. Sealing Plate; 303. Fourth Spring; 304. Push Rod; 305. Driven Rod; 306. Connecting Rod; 307. Push Ring; 308. Conical Sealing Block; 309. Limiting Post; 310. Fifth Spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-3 As shown, a mirror glass substrate positioning and cutting stage includes a worktable 1, which can support and fix various components. A controller is installed on one side of the worktable 1 to control various electrical components. The controller is existing technology and is not shown in the figure. A moving component 2 is provided on the top of the worktable 1. A laser cutting head 3 is installed on one side of the moving component 2. The laser cutting head 3 can emit a focused laser beam to perform non-contact thermal melting cutting on the positioned mirror glass substrate, thereby completing the mirror glass substrate shaping and cutting operation.

[0021] like Figure 1 and Figure 2 As shown, the moving component 2 includes a first electric slide rail 21 fixedly connected to the top of the worktable 1, a second electric slide rail 22 fixedly connected to one side of the first electric slide rail 21, a third electric slide rail 23 fixedly connected to one side of the second electric slide rail 22, and a laser cutting head 3 fixedly connected to the third electric slide rail 23. Through the cooperation of the first electric slide rail 21, the second electric slide rail 22 and the third electric slide rail 23, the laser cutting head 3 can be driven to achieve XYZ three-axis three-dimensional displacement and move at a uniform speed along the preset cutting trajectory, thereby realizing fully automatic and high-precision contour laser cutting of the mirror glass substrate.

[0022] To address the issue of slight warping deformation easily occurring during the production and transportation of mirror glass substrates, and the difficulty in detecting and leveling this warping, the following preferred technical solutions are provided: like Figure 1 and Figures 3-9 As shown, a positioning component 4 is installed inside the worktable 1, a lifting component 5 is installed inside the worktable 1, and several offset compensation components 6 are evenly arranged inside the lifting component 5 for adaptive center offset and elimination of pull-down coaxiality error. Each offset compensation component 6 is equipped with a tilt compensation component 7 for multi-angle deflection and adaptation to the warped surface of the glass. An tilt sensor 8 is installed inside the tilt compensation component 7 for collecting the deflection tilt angle and detecting the local warping of the glass. The tilt sensor 8 is a high-precision miniature electronic tilt sensor 8, which can detect the deflection angle data of the tilt compensation component 7 from multiple angles. An elastic adaptation component 9 is installed inside the tilt compensation component 7 for elastic buffering and adaptive fitting to the bottom surface of the glass. A suction cup component 10 is installed on the top of the elastic adaptation component 9. A vacuum component 20 is installed inside the worktable 1, and the suction cup component 10 is connected to the vacuum component 20. In use, the mirror glass substrate to be cut is placed horizontally and slowly on top of the suction cup assembly 10 through an external feeding structure. The weight of the mirror glass substrate presses down on the elastic adaptation component 9, which uses elastic deformation to adaptively buffer the glass placement pressure, preventing breakage. During the pressing process, slight warping may occur in the mirror glass substrate during production and transport, causing localized upward or downward warping. Therefore, due to the difference in force exerted on the warped surface of the mirror glass during placement, individual suction cup assemblies 10, tilt compensation components 7, and their internal tilt sensors 8 synchronously rotate at corresponding angles. During placement, the suction cup assembly 10 remains in contact with the bottom surface of the glass, following its shape to avoid gaps and maintain an initial seal. After the mirror glass substrate is placed, the elastic adaptation component corresponding to the flattened area of ​​the mirror glass substrate... The compression of component 9 is uniform. However, the compression of the elastic adaptation component 9 corresponding to the upward or downward warped mirror glass substrate is too large or too small, causing the real-time tilt angle detection value of each tilt sensor 8 to deviate. At this time, the controller collects and compares the detection data of each tilt sensor 8 in real time. If the tilt angle deviation value of the tilt sensor 8 is within the preset reasonable error threshold range, the subsequent vacuum adsorption and leveling process is executed normally. If the tilt angle deviation value of the tilt sensor 8 is in the abnormal range that exceeds the preset reasonable threshold, an alarm is triggered to remind the staff that the warped mirror glass substrate is beyond the standard and cannot be processed normally. This realizes automatic detection and abnormal warning screening of warped glass. Compared with the positioning and cutting equipment in the prior art, which is not easy to detect the warped state of glass and blindly processes it, it can effectively avoid processing unqualified workpieces and reduce the cutting scrap rate. The alarm is a prior art technology and is not shown in the figure. Subsequently, the vacuum assembly 20 is activated by the controller to start the vacuuming operation, thereby causing several suction cup assemblies 10 to tightly adhere and fix the mirror glass substrate to be cut, and to initially position and fix the warped mirror glass substrate. Scenario 1: When the mirror glass substrate warps upwards, the controller causes the lifting assembly 5 to slowly descend, driving the offset compensation assembly 6. This, in turn, causes the tilt compensation assembly 7, the elastic adaptation assembly 9, the suction cup assembly 10, and the mirror glass substrate to descend synchronously. This ensures that the lower surface of the horizontal mirror glass substrate first adheres to the upper surface of the positioning assembly 4. Subsequently, the tilt compensation assembly 7 at the warped area is pulled downwards by the lifting assembly 5 and, through its contact with the positioning assembly 4, is limited. This, in turn, causes the suction cup assembly 10 and the warped mirror glass substrate to gradually return to a horizontal position. Simultaneously, the tilt compensation assembly 7 compensates for the offset... The internal rotation of the compensation component 6 causes the elastic adaptation component 9 to return to a vertical state. During the process, due to the local warping deformation of the mirror glass substrate during the initial adsorption, the force offset of the suction cup component 10 following the shape deflection and adhering causes a slight coaxial deviation between the axis of the offset compensation component 6 at the upward warping point and the center position of the suction cup component 10. As a result, during the pull-down process, the offset compensation component 6 adaptively compensates for radial displacement within the lifting component 5, which can eliminate the coaxiality error during the pull-down process and ensure a smooth and unhindered correction process. After the pull-down is completed, the lower surface of the mirror glass substrate at the upward warping point then adheres to the upper surface of the positioning component 4. Scenario 2: When the mirror glass substrate warps downwards, the controller causes the lifting assembly 5 to slowly descend, driving the offset compensation assembly 6. This, in turn, causes the tilt compensation assembly 7, the elastic adaptation assembly 9, the suction cup assembly 10, and the mirror glass substrate to descend synchronously. This ensures that the bottom of the warped side of the mirror glass substrate first contacts the upper surface of the positioning assembly 4. Subsequently, the tilt compensation assembly 7 is pulled down by the lifting assembly 5 and, through contact with the positioning assembly 4, is limited, thereby causing the suction cup assembly 10 and the warped mirror glass substrate to gradually return to a horizontal position. At the same time, the skew compensation component 7 rotates within the offset compensation component 6, causing the elastic adaptation component 9 to return to a vertical state. Subsequently, the lower surface of the horizontal mirror glass substrate adheres to the upper surface of the positioning component 4. During the process, due to the local warping deformation of the mirror glass substrate during initial adsorption and the force offset effect of the suction cup component 10 following the shape and adhering, a slight coaxial deviation occurs between the axis of the downward warping offset compensation component 6 and the center position of the suction cup component 10. As a result, during the pull-down process, the offset compensation component 6 adaptively compensates for radial displacement within the lifting component 5. Based on the above two situations, it can adaptively correct the slight warping deformation of the mirror glass substrate, so that the mirror glass substrate is fully aligned with the unified processing reference surface. Compared with the rigid positioning in the existing technology, the positioning and cutting stage, which is not easy to adaptively correct warping, can greatly improve the positioning flatness and cutting accuracy of the mirror glass substrate. Then, the vacuum assembly 20, together with the suction cup assembly 10, continuously applies negative pressure to adsorb and lock the leveled mirror glass substrate, thereby stabilizing it in all directions. Through the controller, the moving assembly 2 drives the laser cutting head 3 to perform high-precision trajectory scanning and cutting, thus achieving stress-free and high-precision shaping and cutting of the mirror glass substrate.

[0023] like Figures 5-9 As shown, the positioning component 4 includes a positioning plate 41 fixedly connected to the workbench 1. A plurality of first through holes 42 are evenly opened on one side of the positioning plate 41. The spacing between the plurality of first through holes 42 is set evenly and corresponds one-to-one with the suction cup component 10 array, so as to ensure that the mirror glass substrate is subjected to uniform force and the reference is consistent.

[0024] like Figures 3-6 , Figure 8 and Figure 9 As shown, the lifting assembly 5 includes a base plate body 51 fixedly connected to the workbench 1. Two electric push rods 52 are fixedly installed on one side of the base plate body 51. The movable ends of the two electric push rods 52 are fixedly connected to a lifting plate 53. The lifting plate 53 has several second through holes 55. The several second through holes 55 are coaxially arranged with several first through holes 42 respectively. Guide rods 54 are fixedly connected to the four corners of the bottom of the lifting plate 53. The guide rods 54 are slidably connected to the base plate body 51.

[0025] like Figures 4-9 As shown, the offset compensation component 6 includes several first springs 61 fixedly connected inside the lifting plate 53. One end of each first spring 61 is fixedly connected to a circular plate 62. The circular plate 62 is coaxially arranged with the second through hole 55. Several balls 63 are rolledly connected to both sides of the circular plate 62. The balls 63 are rolledly connected to the inner wall of the lifting plate 53, which can reduce the radial movement friction of the circular plate 62 and ensure that the position compensation is flexible, smooth and without jamming. A fixed cylinder 64 is fixedly connected inside the circular plate 62. The diameters of the first through hole 42 and the second through hole 55 are both larger than the diameters of the suction cup assembly 10 and the fixed cylinder 64, which can reserve sufficient movement margin for the radial offset and angle adjustment of the fixed cylinder 64 and realize adaptive compensation for coaxial error.

[0026] like Figure 6 and Figure 7As shown, the skew compensation component 7 includes a rotating ball 71 that is rolled to the top of the fixed cylinder 64. The tilt sensor 8 is fixedly installed inside the rotating ball 71. An annular wear-resistant sealing gasket is provided inside the fixed cylinder 64. The sealing ring is made of low-friction PTFE-coated rubber ring, which is not easy to leak air during long-term reciprocating deflection. It can prevent gaps and air leakage in the vacuum environment when the rotating ball 71 is adjusted at multiple angles, and ensure that the air circuit is sealed throughout. The annular wear-resistant sealing gasket is existing technology and is not shown in the figure. Several second springs 72 are fixedly connected to the outer wall of the rotating ball 71. The other end of the several second springs 72 is fixedly connected to the inner wall of the fixed cylinder 64. A connecting pipe 73 is fixedly connected inside the rotating ball 71. One end of the connecting pipe 73 is connected to a first corrugated pipe 74. The first corrugated pipe 74 can synchronously extend and retract with the height of the suction cup component 10, and adapt to deformation to avoid the vacuum pipeline being pulled and damaged or leaking air.

[0027] like Figure 7 As shown, the elastic adaptation component 9 includes two limiting cylinders 91 fixedly connected inside the rotating ball 71. Each of the two limiting cylinders 91 is slidably connected to a slide rod 93. A third spring 92 is fixedly connected to one side of the slide rod 93. One end of the third spring 92 is fixedly connected to the inner wall of the limiting cylinder 91.

[0028] like Figure 5 and Figure 7 As shown, the suction cup assembly 10 includes a suction cup frame 101 fixedly connected to one end of the slide rod 93. The first corrugated pipe 74 is connected to the suction cup frame 101. A rubber ring 102 is provided on one side of the suction cup frame 101. The rubber ring 102 is made of hard, wear-resistant and aging-resistant silicone material, which can take into account both support rigidity and sealing toughness. After being attached to the mirror glass substrate, it has good sealing performance and avoids damaging the mirror surface. Several conical suction holes 103 are opened through one side of the suction cup frame 101.

[0029] like Figure 4 , Figure 6 and Figure 8 As shown, the vacuum assembly 20 includes a vacuum pump 201 fixedly installed in the workbench 1. The vacuum pump 201 has a suction port connected to a hose 202. One end of the hose 202 is connected to a lifting pipe 203. One end of the lifting pipe 203 is evenly connected to several branch pipes 204. The branch pipes 204 are respectively connected to several fixed cylinders 64. A vacuum sensor 205 is installed in the lifting pipe 203. The vacuum sensor 205 can collect the negative pressure value of the vacuum pipeline in real time and provide feedback on the sealing status.

[0030] like Figure 1 and Figures 3-9As shown, during use, the mirror glass substrate to be cut is placed horizontally and slowly on top of the rubber ring 102 via an external feeding structure. The weight of the mirror glass substrate presses down on the rubber ring 102 and suction cup frame 101, causing the slide bar 93 to slide within the limiting cylinder 91 and compress the third spring 92, simultaneously compressing the first bellows 74. This utilizes elastic deformation to adaptively buffer the glass placement pressure, preventing glass breakage. During the downward pressing of the slide bar 93, slight warping may occur during the production and transport of the mirror glass substrate, resulting in localized upward or downward warping. Therefore, during the placement of the mirror glass substrate, due to the difference in force exerted on the warped surface, individual rubber rings 102, suction cup frame 101, rotating ball 71, and their internal tilt sensor 8 synchronously deflect at corresponding angles. This causes the rotating ball 71 to rotate adaptively in all directions within the fixed cylinder 64, ensuring that the rubber ring 102 always adheres to the bottom surface of the glass and follows its shape during placement. To avoid gaps in the fit and ensure an initial seal, after the mirror glass substrate is placed, the compression of the third spring 92 corresponding to the flat part of the mirror glass substrate is uniform. The compression of the third spring 92 corresponding to the upward or downward warped part of the mirror glass substrate is too large or too small, causing the real-time tilt angle detection value of the tilt sensor 8 to deviate. At this time, the controller collects and compares the detection data of each tilt sensor 8 in real time. If the tilt angle deviation value of the tilt sensor 8 is within the preset reasonable error threshold range, the subsequent vacuum adsorption and leveling process is executed normally. If the tilt angle deviation value of the tilt sensor 8 is in the abnormal range exceeding the preset reasonable threshold, an alarm is triggered to remind the staff that the mirror glass substrate warps too much and cannot be processed normally. This achieves automatic detection and abnormal warning screening of warped glass. Compared with the existing positioning and cutting equipment that is not easy to detect the warped state of glass and blindly processes it, this can effectively avoid processing unqualified workpieces and reduce the scrap rate. Subsequently, the vacuum pump 201 is activated by the controller to perform vacuuming. The negative pressure air path is connected to the suction cup frame 101 through the hose 202, lifting pipe 203, fixed cylinder 64, connecting pipe 73, and first corrugated pipe 74. Through several conical suction holes 103, a closed negative pressure adsorption chamber is formed between the rubber ring 102 and the mirror glass substrate. This allows the rubber ring 102 to stably adsorb and fix the mirror glass substrate to be cut, thus initially limiting and fixing the mirror glass substrate to be cut. Scenario 1: When the mirror glass substrate warps upwards, the controller causes the movable ends of the two electric push rods 52 to shorten synchronously, causing the lifting plate 53 to descend. Simultaneously, the guide rod 54 slides within the base plate 51, causing the circular plate 62 and the fixed cylinder 64 to slowly descend. This, in turn, causes the rotating ball 71, sliding rod 93, limiting cylinder 91, suction cup frame 101, rubber ring 102, and mirror glass substrate to descend synchronously. This ensures that the lower surface of the horizontal mirror glass substrate preferentially adheres to the upper surface of the positioning plate 41. Subsequently, the rotating ball 71 at the upward warping point is pulled downwards by the two electric push rods 52 and the lifting plate 53, and is limited by its contact with the positioning plate 41. This, in turn, causes the suction cup frame 101, rubber ring 102, and other components to descend synchronously. As the rubber ring 102 and the upwardly warped mirror glass substrate gradually return to horizontal, the rotating ball 71 rotates inside the fixed cylinder 64. During this process, due to the local warping deformation of the mirror glass substrate during initial adsorption, the force offset of the suction cup frame 101 and the rubber ring 102 following the shape deflection and adhering causes a slight coaxial deviation between the axis of the fixed cylinder 64 and the center position of the rubber ring 102. Consequently, during the pull-down process, the circular plate 62 moves within the lifting plate 53, and several balls 63 adaptively compensate for radial displacement within the lifting plate 53, which can eliminate the coaxiality error during pull-down and ensure a smooth and unhindered correction process. After the pull-down is completed, the lower surface of the upwardly warped mirror glass substrate then adheres to the upper surface of the positioning plate 41. Scenario 2: When the mirror glass substrate warps downwards, the controller causes the movable ends of the two electric push rods 52 to shorten synchronously, causing the lifting plate 53 to descend. Simultaneously, the guide rod 54 slides within the base plate 51, causing the circular plate 62 and the fixed cylinder 64 to slowly descend. This, in turn, causes the rotating ball 71, sliding rod 93, limiting cylinder 91, suction cup frame 101, rubber ring 102, and mirror glass substrate to descend synchronously. This ensures that the bottom of the downward-warped mirror glass substrate first contacts the upper surface of the positioning plate 41. Subsequently, the rotating ball 71 is pulled downwards by the two electric push rods 52 and the lifting plate 53, and is limited by its contact with the positioning plate 41, thereby causing the suction cup... As component 10 and the downwardly warped mirror glass substrate gradually return to horizontal, the rotating ball 71 rotates within the fixed cylinder 64, causing the slide rod 93 and the limiting cylinder 91 to return to a vertical state. Subsequently, the lower surface of the horizontal mirror glass substrate adheres to the upper surface of the positioning plate 41. During this process, due to the local warping deformation of the mirror glass substrate during initial adsorption, the suction cup frame 101 and the rubber ring 102 deflect and adhere to the force offset, causing a slight coaxial deviation between the axis of the fixed cylinder 64 and the center position of the rubber ring 102. Consequently, during the pull-down process, the circular plate 62 moves within the lifting plate 53, and several balls 63 adaptively compensate for radial displacement within the lifting plate 53. Based on the above two situations, it can adaptively correct the slight warping deformation of the mirror glass substrate, so that the mirror glass substrate is fully aligned with the unified processing reference surface. Compared with the rigid positioning in the existing technology, the positioning and cutting stage, which is not easy to adaptively correct warping, can greatly improve the positioning flatness and cutting accuracy of the mirror glass substrate. Afterwards, the vacuum pump 201 continuously operates under constant negative pressure, and the rubber ring 102 continuously locks and fixes it under negative pressure, so as to stabilize the leveled mirror glass substrate in all directions. Through the controller, the first electric slide rail 21, the second electric slide rail 22 and the third electric slide rail 23 cooperate with each other to drive the laser cutting head 3 to perform high-precision trajectory scanning and cutting operations, thereby realizing stress-free and high-precision shaping and cutting of the mirror glass substrate.

[0031] To address the technical problem of difficulty in self-inspecting vacuum lines, which affects cutting and positioning results, the following preferred technical solution is provided: like Figures 5-7 As shown, each of the offset compensation components 6 is equipped with a sealing suction cup component 10, which enables a sealing self-test component 30 to perform a self-test of the vacuum pipeline's sealing performance.

[0032] like Figure 6 and Figure 7As shown, during long-term cutting and processing, due to aging of the vacuum pipeline and loosening of joints, the vacuum pipeline of the vacuum pumping component 20 may experience negative pressure leakage and sealing failure. Simultaneously, in an unloaded state without material loading, the elastic structure within the skew compensation component 7 will cause the elastic adaptation component 9 and the suction cup component 10 to be in an automatically reset vertical state. After a period of use, when the device is in an unloaded standby state, a periodic sealing self-check operation is performed. Through the controller, the lifting component 5 drives the offset compensation component 6, skew compensation component 7, elastic adaptation component 9, suction cup component 10, and sealing self-check component 30 to descend synchronously until the bottom of the sealing self-check component 30 contacts the base plate structure of the lifting component 5. At this point, the lifting component 5 continues to drive the sealing self-check component 30 downwards. Through the reverse limiting push action of the positioning component 4, the sealing self-check component 30 is pushed upwards, sealing the suction structure within the suction cup component 10, thereby simultaneously sealing the suction... The disk assembly 10 then triggers the vacuum assembly 20 via the controller to start constant negative pressure detection. The vacuum detection structure within the vacuum assembly 20 continuously detects the vacuum. If the negative pressure value of the vacuum detection structure remains stable within the standard threshold for a period of time, it is determined that the vacuum pipeline is well-sealed and there is no air leakage. If the negative pressure value of the vacuum detection structure continues to decrease and cannot maintain pressure for a period of time, it is determined that the vacuum pipeline is damaged and there is an air leakage. At this time, the alarm will sound, reminding the staff to repair the vacuum pipeline and suction cup structure in time. This achieves automatic leak detection and regular self-inspection and maintenance of the equipment. Compared with the existing technology, which is not easy to self-inspect and relies on manual inspection for air leakage, this can significantly improve work efficiency and subsequent cutting and processing quality. It avoids the difficulty in timely detection of wear and aging of vacuum pipelines and loose joints, which can lead to uneven positioning and adsorption force and reference offset, resulting in glass cutting edge chipping, dimensional deviation, and increased processing scrap rate. The self-testing sealing assembly 30 includes a second bellows 301 fixedly connected to the bottom of the fixed cylinder 64. A sealing plate 302 is fixedly connected to one end of the second bellows 301. A fourth spring 303 is fixedly connected to one side of the sealing plate 302. One end of the fourth spring 303 is fixedly connected to one end of the fixed cylinder 64. A push rod 304 is fixedly connected to one side of the sealing plate 302 and is slidably connected to the fixed cylinder 64. Several limiting posts 309 are fixedly connected inside the suction cup frame 101. A pushing ring 307 is slidably connected to the outer wall of the several limiting posts 309. A fifth spring 307 is fixedly connected to one side of the pushing ring 307. Spring 310, one end of the fifth spring 310 is fixedly connected to the inner wall of the suction cup frame 101. Several conical sealing blocks 308 are fixedly connected to one side of the push ring 307. The conical sealing blocks 308 are made of high elasticity and wear-resistant rubber material, which can adapt to the conical suction hole 103 tapered structure and realize the vacuum pipeline sealing self-test. Several conical sealing blocks 308 and several conical suction holes 103 are coaxially arranged. Several connecting rods 306 are fixedly connected inside the push ring 307. One end of several connecting rods 306 is fixedly connected to a driven rod 305. The driven rod 305 and the push rod 304 are coaxially arranged. During long-term cutting and processing, due to aging of the vacuum pipeline and loosening of joints, negative pressure leakage and sealing failure may occur in the vacuum pipelines of vacuum pump 201, hose 202, lifting pipe 203, fixed cylinder 64, connecting pipe 73, first corrugated pipe 74, and suction cup frame 101. Simultaneously, in an unloaded state without material loading, the rotating ball 71 is kept in a horizontally centered reset state by several second springs 72. At the same time, the limiting cylinder 91, sliding rod 93, rubber ring 102, and suction cup frame 101 are in an automatically reset vertical state. After a period of use, when the device is in an unloaded standby state, a periodic sealing self-check is performed. Through the controller, the two electric push rods 52... The movable end shortens synchronously, causing the lifting plate 53 to descend. Simultaneously, the guide rod 54 slides within the base plate body 51, thereby causing the circular plate 62 and the fixed cylinder 64 to slowly descend. This, in turn, causes the rotating ball 71, sliding rod 93, limiting cylinder 91, suction cup frame 101, rubber ring 102, second bellows 301, sealing plate 302, and push rod 304 to descend synchronously until the bottom of the sealing plate 302 contacts the base plate body 51. At this point, the two electric push rods 52 continuously drive the sealing plate 302 downwards. Through the reverse limiting push action of the positioning plate 41, the sealing plate 302 is pushed upwards. At this time, the second bellows 301 is compressed, and the fourth spring 303 is squeezed, causing the push rod 304 to push the driven rod 305 after contacting it. The upward movement causes several connecting rods 306, pushing rings 307, and several conical sealing blocks 308 to move upward simultaneously. At this time, the pushing rings 307 slide on the outer walls of several limiting posts 309 and simultaneously compress the fifth spring 310 until several conical sealing blocks 308 block several conical suction holes 103, thereby sealing the vacuum pipeline and forming a sealed detection chamber. Subsequently, the controller starts the vacuum pump 201 to maintain a constant negative pressure for detection, thereby creating a constant negative pressure environment between the hose 202, lifting pipe 203, fixed cylinder 64, connecting pipe 73, first corrugated pipe 74, and the suction cup frame 101. This environment is continuously detected by the vacuum sensor 205. If the negative pressure value of the vacuum sensor 205 remains stable for a period of time... If the vacuum line is maintained within the standard threshold, it is determined that the vacuum line is well sealed and there is no air leakage. If the negative pressure value of the vacuum sensor 205 continues to decrease and cannot maintain pressure for a period of time, it is determined that the vacuum line is damaged and there is an air leakage. At this time, the alarm will sound, reminding the staff to repair the vacuum line and suction cup structure in time. This realizes automatic leak detection and regular self-inspection and maintenance of the equipment. Compared with the existing technology, which is not easy to self-inspect and relies on manual inspection of air leakage, it can significantly improve work efficiency and subsequent cutting and processing quality. It avoids the difficulty in timely detection of vacuum line wear and aging and loose joints, which can lead to uneven positioning and adsorption force and reference offset, resulting in glass cutting edge chipping, dimensional deviation, and increased processing scrap rate.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and cutting stage for a mirror glass substrate, comprising a worktable (1), a moving assembly (2) disposed on the top of the worktable (1), and a laser cutting head (3) mounted on one side of the moving assembly (2), characterized in that: The workbench (1) is equipped with a positioning component (4), a lifting component (5), and several offset compensation components (6) are evenly arranged in the lifting component (5) for adaptive center offset and elimination of pull-down coaxiality error. Each offset compensation component (6) is equipped with a tilt compensation component (7) for multi-angle deflection and adaptation to glass warping surface. The tilt compensation component (7) is equipped with a tilt sensor (8) for collecting deflection tilt angle and detecting local glass warping. The tilt compensation component (7) is equipped with an elastic adaptation component (9) for elastic buffering and adaptive fitting to the bottom surface of the glass. The elastic adaptation component (9) is equipped with a suction cup component (10) on top. The workbench (1) is equipped with a vacuum component (20), and the suction cup component (10) is connected to the vacuum component (20).

2. The mirror glass substrate positioning and cutting stage according to claim 1, characterized in that: The moving component (2) includes a first electric slide rail (21) fixedly connected to the top of the workbench (1), a second electric slide rail (22) fixedly connected to one side of the first electric slide rail (21), a third electric slide rail (23) fixedly connected to one side of the second electric slide rail (22), and a laser cutting head (3) fixedly connected to the third electric slide rail (23).

3. The mirror glass substrate positioning and cutting stage according to claim 1, characterized in that: The positioning component (4) includes a positioning plate (41) fixedly connected to the workbench (1), and a plurality of first through holes (42) are evenly opened on one side of the positioning plate (41).

4. The mirror glass substrate positioning and cutting stage according to claim 3, characterized in that: The lifting assembly (5) includes a base plate body (51) fixedly connected to the workbench (1). Two electric push rods (52) are fixedly installed on one side of the base plate body (51). The movable ends of the two electric push rods (52) are fixedly connected to a lifting plate (53). The lifting plate (53) has several second through holes (55). The several second through holes (55) are coaxially arranged with several first through holes (42). Guide rods (54) are fixedly connected to the four corners of the bottom of the lifting plate (53). The guide rods (54) are slidably connected to the base plate body (51).

5. The mirror glass substrate positioning and cutting stage according to claim 4, characterized in that: The offset compensation component (6) includes several first springs (61) fixedly connected to the lifting plate (53). One end of each of the several first springs (61) is fixedly connected to a circular plate (62). The circular plate (62) is coaxially arranged with the second through hole (55). Several balls (63) are rolledly connected to both sides of the circular plate (62). The balls (63) are rolledly connected to the inner wall of the lifting plate (53). A fixed cylinder (64) is fixedly connected inside the circular plate (62).

6. The mirror glass substrate positioning and cutting stage according to claim 5, characterized in that: The skew compensation component (7) includes a rotating ball (71) that is rolled to the top of the fixed cylinder (64), an inclination sensor (8) that is fixedly installed inside the rotating ball (71), a number of second springs (72) that are fixedly connected to the outer wall of the rotating ball (71), the other end of the number of second springs (72) that are fixedly connected to the inner wall of the fixed cylinder (64), and a connecting pipe (73) that is fixedly connected inside the rotating ball (71), with one end of the connecting pipe (73) connected to a first corrugated pipe (74).

7. A mirror glass substrate positioning and cutting stage according to claim 6, characterized in that: The elastic adaptation component (9) includes two limiting cylinders (91) fixedly connected inside the rotating ball (71). Each of the two limiting cylinders (91) is slidably connected to a slide rod (93). A third spring (92) is fixedly connected to one side of the slide rod (93). One end of the third spring (92) is fixedly connected to the inner wall of the limiting cylinder (91).

8. A mirror glass substrate positioning and cutting stage according to claim 7, characterized in that: The suction cup assembly (10) includes a suction cup frame (101) fixedly connected to one end of the slide rod (93), a first corrugated pipe (74) connected to the suction cup frame (101), a rubber ring (102) provided on one side of the suction cup frame (101), and a number of conical suction holes (103) through-opened on one side of the suction cup frame (101).

9. A mirror glass substrate positioning and cutting stage according to claim 5, characterized in that: The vacuum assembly (20) includes a vacuum pump (201) fixedly installed in the workbench (1). The vacuum pump (201) has a hose (202) connected to its air intake port. One end of the hose (202) is connected to a lifting pipe (203). One end of the lifting pipe (203) is evenly connected to several branch pipes (204). The several branch pipes (204) are respectively connected to several fixed cylinders (64). A vacuum sensor (205) is installed inside the lifting pipe (203).

10. A mirror glass substrate positioning and cutting stage according to claim 8, characterized in that: Each of the aforementioned offset compensation components (6) is equipped with a sealing suction cup assembly (10) to achieve a sealing self-testing assembly (30) for the vacuum pipeline sealing performance. The sealing self-testing assembly (30) includes a second corrugated pipe (301) fixedly connected to the bottom of the fixed cylinder (64). A sealing plate (302) is fixedly connected to one end of the second corrugated pipe (301). A fourth spring (303) is fixedly connected to one side of the sealing plate (302). One end of the fourth spring (303) is fixedly connected to one end of the fixed cylinder (64). A push rod (304) is fixedly connected to one side of the sealing plate (302). The push rod (304) is slidably connected to the fixed cylinder (64). The suction cup frame (101) is fixedly connected to... There are several limiting posts (309), and a push ring (307) is slidably connected to the outer wall of the several limiting posts (309). A fifth spring (310) is fixedly connected to one side of the push ring (307). One end of the fifth spring (310) is fixedly connected to the inner wall of the suction cup frame (101). Several conical sealing blocks (308) are fixedly connected to one side of the push ring (307). Several conical sealing blocks (308) are coaxially arranged with several conical suction holes (103). Several connecting rods (306) are fixedly connected inside the push ring (307). A driven rod (305) is fixedly connected to one end of several connecting rods (306). The driven rod (305) is coaxially arranged with the push rod (304).

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