A device and method for measuring and positioning ultra-large glass

Abstract

The present invention discloses a device and method for controlling measurement and positioning of oversized glass, and relates to the technical field of glass measurement and positioning; in order to solve the problem of inconsistency in glass positioning and measurement; specifically comprises a mounting plate, the outer walls on both sides of the top of the mounting plate are respectively provided with hangers, and the top of the hanger is provided with anchor bolts, the top middle outer wall of the mounting plate is provided with a motor, and the bottom of the mounting plate is provided with a rotating opening and closing mechanism, the output end of the motor is movably connected to the driving end of the rotating opening and closing mechanism, and the four sides of the rotating opening and closing mechanism are respectively fixedly connected with positioning plate one and positioning plate two, and the bottoms of positioning plate one and positioning plate two are connected with a clamping plate through a telescopic component. The present invention realizes the measurement of size and flatness while positioning the glass, overcomes the drawbacks of traditional glass positioning before measurement, not only improves the efficiency of glass measurement, but also the overall device meets the measurement requirements for glass of different sizes, and expands the scope of application of glass measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of glass measurement and positioning, and in particular to a device and method for controlling measurement and positioning of extra-large glass. Background Art

[0002] Ultra-large glass measurement and positioning control refers to the technology and methods for measuring and positioning large-sized glass products. In the production process of glass products, especially in the production of large-sized glass products such as architectural glass curtain walls and automotive glass, accurate measurement and positioning control are crucial links. In the production of large-sized glass products such as architectural glass curtain walls and automotive glass, the application of ultra-large glass measurement and positioning control technology can effectively improve product quality and production efficiency, reduce waste and costs, and also meet customers' requirements for product accuracy and appearance.

[0003] After searching, the Chinese patent application number CN2019219926664 discloses a positioning device for glass measurement, which relates to the technical field of positioning devices for measurement, and is to solve the problem that the existing positioning device for glass measurement is prone to tilting during the transmission of glass, resulting in inaccurate measurement of glass size. A support foot is arranged below the base, a motor table is arranged on one side of the base, a synchronous motor is arranged above the motor table, a fastening bolt is arranged on one side of the synchronous motor, a hydraulic table is arranged above the base, a support seat is arranged above the hydraulic table, a rotating shaft is arranged inside the support seat, and a small roller is arranged on the outer wall of the rotating shaft, a large support seat is arranged on one side of the hydraulic table, a large rotating shaft is arranged inside the large support seat, and a large roller is arranged on the outer wall of the large rotating shaft, a protective cover is arranged on one side of the large support seat, a driving wheel is arranged inside the protective cover, and a small pressure wheel is arranged on one side of the driving wheel. A positioning device for glass measurement in the above patent has the following shortcomings:

[0004] Although the overall device can reduce the resistance encountered by the glass when it moves left and right and front and back, and avoid the glass from tilting or shifting due to excessive resistance, the overall device cannot measure the glass while positioning it, and there is also a problem of difficulty in positioning for glass of different sizes. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device and method for measuring and positioning a super-large glass.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A super-large glass measuring, positioning and controlling device comprises a mounting plate, hangers are respectively arranged on the outer walls on both sides of the top of the mounting plate, and anchor bolts are arranged on the top of the hangers, a motor is arranged on the middle outer wall on the top of the mounting plate, and a rotating opening and closing mechanism is arranged on the bottom of the mounting plate, the output end of the motor is movably connected to the driving end of the rotating opening and closing mechanism, a positioning plate 1 and a positioning plate 2 are respectively fixedly connected around the rotating opening and closing mechanism, and the bottoms of the positioning plates 1 and 2 are connected with a clamping plate through a telescopic component, displacement sensors are respectively fixedly connected to the opposite sides of every two positioning plates 1 and every two positioning plates 2, a rotating plate is fixedly connected to the bottom rotating end of the rotating opening and closing mechanism, and microscopic cameras are respectively fixedly connected to the two sides of the bottom of the rotating plate.

[0008] Preferably: the rotating opening and closing mechanism includes a rack rod, an L-shaped guide rod, a telescopic rod, a first rotating shaft, a bearing seat, a second rotating shaft, a driving gear, a rotating rod and a guide shaft, and the guide shaft is connected to the output shaft end of the motor through a coupling.

[0009] Furthermore: a snap-in hole is opened on the middle outer wall of the mounting plate, and the rotating rod is fixedly connected in the snap-in hole through a bearing, the driving gear is arranged on the circumference of the rotating rod, and the top outer wall of the second positioning plate is fixedly connected with an L-shaped bracket.

[0010] Based on the above scheme: one end of the rack rod is arranged on one side of the top of the L-shaped bracket, and the rack rod is meshed with the driving gear, the second rotating shaft is arranged on the middle top outer wall of the rotating plate, and the L-shaped guide rod is arranged at the top of the second rotating shaft.

[0011] A better solution in the above solution is: the bearing seat is sleeved on the circumference of the rotating rod near the bottom of the driving gear, the rotating shaft is set at the bottom of the other end of the L-shaped guide rod, and the extended rod end faces of the telescopic rod are fixedly connected to both sides of the circumference of the bearing seat.

[0012] As a further solution of the present invention: the end of the telescopic rod away from the bearing seat is fixedly connected to one side of the positioning plate one, and the bottom end of the rotating shaft one forms a rotational fit with the top outer walls of the positioning plate one and the positioning plate two respectively.

[0013] At the same time, the telescopic assembly includes a fixed plate, a storage groove, a connecting plate, a limit plate and a spring, and the fixed plate is arranged at the bottom of the positioning plate one and the positioning plate, the storage groove is opened at the bottom of the fixed plate, and an inner cavity is opened inside one side of the positioning plate one and the positioning plate two.

[0014] As a preferred embodiment of the present invention: equidistant through holes are opened between the inner cavity and the storage groove, the limiting plate is fixedly connected to the inner walls on both sides of the through holes, the connecting plate is slidably connected to the opposite side of the limiting plate, and the two ends of the spring are respectively fixedly connected to the connecting plate and the opposite side of the inner cavity.

[0015] At the same time, a pad is bonded to the outer wall of the bottom of the rotating plate, and storage boxes are fixedly installed on both sides of the bottom of the pad, and the microscope cameras are axially symmetrically distributed on both sides of the pad.

[0016] A method for measuring and positioning a large glass comprises the following steps:

[0017] S1: Install the whole device above the measured glass through the anchor bolts on the top of the hanger, and let the clamping plates at the bottom of the positioning plate 1 and the positioning plate 2 contact the top of the glass;

[0018] S2: The starting motor drives the guide shaft to rotate, and the rotating guide shaft drives the rotating rod to rotate, thereby driving the driving gear to rotate. The rotating driving gear drives the rack rods on both sides of its circumference to move horizontally in opposite directions through the meshing relationship with the rack rod;

[0019] S3: The displaced end of the rack rod drives the two positioning plates 2 to expand to both sides. At the same time, the rotating rod drives the rotating plate at its bottom to rotate, and the L-shaped guide rod located on the top of the rotating plate performs an expansion action. The two positioning plates 1 also expand outward and drive the telescopic rod to perform a telescopic action.

[0020] S4: When the positioning plate 1 and the positioning plate 2 are unfolded outward, when the card plate at the bottom passes over the edge of the glass, the spring is stretched to drive the connecting plate to slide downward, and the card plate is ejected from the storage slot, so that the side of the card plate fits against the edge of the glass, thereby achieving positioning of the four sides of the glass.

[0021] The beneficial effects of the present invention are:

[0022] 1. A device and method for controlling the measurement and positioning of oversized glass, wherein the entire device is installed above the glass to be measured through the anchor bolts on the top of the hanger, and the clamping plates at the bottom of the first and second positioning plates are allowed to contact the top of the glass. Then, the motor is started to drive the guide shaft to rotate, and the rotating guide shaft drives the rotating rod to rotate, thereby driving the driving gear to rotate. The rotating driving gear drives the rack rods on both sides of its circumference to move horizontally in opposite directions through the meshing relationship with the rack rod, and the displaced ends of the rack rod drive the two second positioning plates to expand to both sides. At the same time, the rotating rotating rod drives the rotating plate at the bottom thereof to rotate, and the L-shaped guide rod located at the top of the rotating plate performs an expansion action. At this time, the two first positioning plates also expand outward. The positioning plate 1 and the positioning plate 2 are opened, and the telescopic rod is driven to perform a telescopic action. When the positioning plate 1 and the positioning plate 2 are unfolded outward and the card plate at the bottom thereof passes over the edge of the glass, the telescopic assembly works to make the card plate pop up downward and fit the edge of the glass. Meanwhile, the displacement sensors located on the opposite sides of the positioning plate 1 and the positioning plate 2 measure the size of the glass, and the microscopic camera at the bottom of the rotating plate measures the flatness of the top surface of the glass during the rotation process. Thus, the size and flatness measurement can be performed while the glass is positioned, which effectively overcomes the disadvantage of the traditional method of first positioning the glass and then measuring it. Not only the efficiency of glass measurement is improved, but also the overall device meets the measurement requirements for glass of different sizes, thus expanding the scope of application of glass measurement.

[0023] 2. This is a device and method for controlling the measurement and positioning of oversized glass. When the positioning plate 1 and the positioning plate 2 are unfolded outward and the card plate at the bottom passes over the edge of the glass, the spring is stretched to drive the connecting plate to slide downward, and the card plate is ejected from the storage slot, so that the side of the card plate fits the edge of the glass, thereby achieving positioning of the four sides of the glass, playing a role of limiting the four sides of the glass, thereby meeting the positioning requirements when measuring different glasses and ensuring the stability of glass measurement.

[0024] 3. This ultra-large glass measurement positioning control device and method can put the entire device in a suspended state through the setting of hangers and anchor bolts. It is different from the disadvantages of traditional displacement measurement using transmission wheels and facilitates the loading, unloading and replacement of the entire device.

[0025] 4. This ultra-large glass measurement positioning control device and method installs a microscope camera at the bottom of the rotating plate, so that the rotating plate can perform a large-scale flatness measurement on the glass surface during rotation, thereby improving the quality of glass surface qualification rate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of an ultra-large glass measurement and positioning control device proposed by the present invention;

[0027] Figure 2This is a schematic diagram of the top view of the structure of an ultra-large glass measurement and positioning control device proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of A in a super-large glass measurement and positioning control device proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a rotary opening and closing mechanism in a super-large glass measuring, positioning and controlling device proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of a positioning plate 1 in a super-large glass measurement and positioning control device proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the bottom structure of a rotating plate in a super-large glass measurement and positioning control device proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of a hanger in a super-large glass measuring, positioning and controlling device proposed by the present invention.

[0033] In the figure: 1. hanger; 2. mounting plate; 3. positioning plate 1; 4. clamping plate; 5. positioning plate 2; 6. L-shaped bracket; 7. anchor bolt; 8. rack rod; 9. L-shaped guide rod; 10. telescopic rod; 11. rotating shaft 1; 12. fixing plate; 13. motor; 14. bearing seat; 15. rotating shaft 2; 16. driving gear; 17. rotating plate; 18. rotating rod; 19. displacement sensor; 20. storage slot; 21. connecting plate; 22. limit plate; 23. spring; 24. pad; 25. storage box; 26. microscope camera; 27. guide shaft; 28. clamping hole. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0037] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] A super large glass measuring positioning control device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it includes a mounting plate 2, the outer walls on both sides of the top of the mounting plate 2 are respectively connected to the hanger 1 by threads, and the top of the hanger 1 is provided with an anchor bolt 7, the top middle outer wall of the mounting plate 2 is fixed with a motor 13 by bolts, and the bottom of the mounting plate 2 is provided with a rotating opening and closing mechanism, the output end of the motor 13 is movably connected to the driving end of the rotating opening and closing mechanism, the four sides of the rotating opening and closing mechanism are respectively fixedly connected with a positioning plate 1 3 and a positioning plate 2 5, and the bottoms of the positioning plates 1 3 and the positioning plates 2 5 are connected with a clamping plate 4 through a telescopic component, the opposite sides of every two positioning plates 1 3 and every two positioning plates 2 5 are respectively fixedly connected with a displacement sensor 19, the bottom rotating end of the rotating opening and closing mechanism is fixedly connected with a rotating plate 17, and the two sides of the bottom of the rotating plate 17 are respectively fixedly connected with a microscope camera 26, the model of the displacement sensor 19 is Sick LMS111, and the model of the microscope camera 26 is Nikon EclipseLV100ND.

[0040] In order to achieve measurement while positioning the extra-large glass; Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the rotating opening and closing mechanism includes a rack rod 8, an L-shaped guide rod 9, a telescopic rod 10, a rotating shaft 11, a bearing seat 14, a rotating shaft 2 15, a driving gear 16, a rotating rod 18 and a guide shaft 27, and the guide shaft 27 is connected to the output shaft end of the motor 13 through a coupling, a clamping hole 28 is opened on the middle outer wall of the mounting plate 2, and the rotating rod 18 is fixedly connected to the clamping hole 28 through a bearing, the driving gear 16 is connected to the circumference of the rotating rod 18 through a thread, and the top outer wall of the positioning plate 2 5 is fixedly connected with an L-shaped bracket 6 respectively;

[0041] One end of the rack rod 8 is connected to one side of the top of the L-shaped bracket 6 by bolts, and the rack rod 8 is meshed with the driving gear 16, the rotating shaft 15 is connected to the middle top outer wall of the rotating plate 17 by bolts, the L-shaped guide rod 9 is connected to the top of the rotating shaft 15 by threads, the bearing seat 14 is sleeved on the circumference of the rotating rod 18 close to the bottom of the driving gear 16, the rotating shaft 11 is connected to the bottom of the other end of the L-shaped guide rod 9 by threads, the extended rod end faces of the telescopic rod 10 are fixedly connected to both sides of the circumference of the bearing seat 14, the end of the telescopic rod 10 away from the bearing seat 14 is fixedly connected to one side of the positioning plate 13, and the bottom end of the rotating shaft 11 forms a rotational fit with the top outer walls of the positioning plate 13 and the positioning plate 2 5 respectively;

[0042] During operation, the whole device is installed above the measured glass through the anchor bolt 7 on the top of the hanger 1, and the card plate 4 at the bottom of the positioning plate 1 3 and the positioning plate 2 5 is allowed to contact the top of the glass. Then, the motor 13 is started to drive the guide shaft 27 to rotate, and the rotating guide shaft 27 drives the rotating rod 18 to rotate, thereby driving the driving gear 16 to rotate. The rotating driving gear 16 drives the rack rods 8 on both sides of its circumference to horizontally displace in opposite directions through the meshing relationship with the rack rod 8, and the ends of the displaced rack rod 8 drive the two positioning plates 2 5 to expand to both sides. At the same time, the rotating rotating rod 18 drives the rotating plate 17 at its bottom to rotate, and the L-shaped guide rod 9 located at the top of the rotating plate 17 performs an expansion action. At this time, the two positioning plates 1 3 are also expanded outwards and drive the telescopic rod 10 to perform a telescopic action.

[0043] When the positioning plate 1 3 and the positioning plate 2 5 are unfolded outward, and the card plate 4 at the bottom thereof passes over the edge of the glass, the telescopic assembly works to make the card plate 4 pop up downward and fit the edge of the glass. Meanwhile, the displacement sensor 19 located on the opposite side of the positioning plate 1 3 and the positioning plate 2 5 measures the size of the glass, and the microscope camera 26 at the bottom of the rotating plate 17 measures the flatness of the top surface of the glass during the rotation process. Thus, the size and flatness measurement can be performed while the glass is positioned, effectively overcoming the disadvantage of the traditional method of first positioning the glass and then measuring it. Not only the efficiency of glass measurement is improved, but also the overall device meets the measurement requirements for glass of different sizes, thereby expanding the scope of application of glass measurement.

[0044] In order to meet the positioning requirements of glass of different sizes; Figure 2 and Figure 5 As shown, the telescopic assembly includes a fixed plate 12, a receiving groove 20, a connecting plate 21, a limiting plate 22 and a spring 23, and the fixed plate 12 is fixed to the bottom of the positioning plate 1 3 and the positioning plate 5 by bolts, the receiving groove 20 is opened at the bottom of the fixed plate 12, and an inner cavity is opened inside one side of the positioning plate 1 3 and the positioning plate 2 5, and equidistant through holes are opened between the inner cavity and the receiving groove 20, the limiting plate 22 is fixedly connected to the inner walls on both sides of the through hole, the connecting plate 21 is slidably connected to the opposite side of the limiting plate 22, and the two ends of the spring 23 are respectively fixedly connected to the opposite side of the connecting plate 21 and the inner cavity;

[0045] When the positioning plates 1 3 and 2 5 are unfolded outward, and the card plate 4 at the bottom thereof passes over the edge of the glass, the spring 23 is stretched to drive the connecting plate 21 to slide downward, and the card plate 4 is ejected from the storage groove 20, so that the side of the card plate 4 fits against the edge of the glass, thereby achieving positioning of the four sides of the glass, playing a role of limiting the position of the four sides of the glass, thereby meeting the positioning requirements of different glasses when measuring, and ensuring the stability of glass measurement.

[0046] like Figure 6 As shown, a pad 24 is bonded to the bottom outer wall of the rotating plate 17, and storage boxes 25 are fixedly installed on both sides of the bottom of the pad 24, and microscope cameras 26 are axially symmetrically distributed on both sides of the pad 24, and the storage box 25 has built-in image collection and storage components and remote transmission components.

[0047] Working principle: the whole device is installed above the measured glass through the anchor bolt 7 on the top of the hanger 1, and the card plate 4 at the bottom of the positioning plate 1 3 and the positioning plate 2 5 is allowed to contact the top of the glass. Then, the motor 13 is started to drive the guide shaft 27 to rotate, and the rotating guide shaft 27 drives the rotating rod 18 to rotate, thereby driving the driving gear 16 to rotate. The rotating driving gear 16 drives the rack rods 8 on both sides of its circumference to move horizontally in opposite directions through the meshing relationship with the rack rod 8, and the ends of the displaced rack rod 8 drive the two positioning plates 2 5 to expand to both sides. At the same time, the rotating rotating rod 18 drives the rotating plate 17 at its bottom to rotate, and the L-shaped guide rod 9 located at the top of the rotating plate 17 performs an expansion action. At this time, the two positioning plates 1 3 are also expanded outwards and drive the telescopic rod 10 to perform a telescopic action;

[0048] When the positioning plates 1 3 and 2 5 are unfolded outward, the card plate 4 at the bottom thereof passes over the edge of the glass, and the spring 23 is stretched to drive the connecting plate 21 to slide downward, popping the card plate 4 out of the receiving groove 20, so that the side of the card plate 4 fits against the edge of the glass, thereby achieving positioning of the four sides of the glass.

[0049] Embodiment 2:

[0050] A method for measuring and positioning large glass, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the following steps are included:

[0051] S1: Install the whole device above the measured glass through the anchor bolt 7 on the top of the hanger 1, and let the clamping plate 4 at the bottom of the positioning plate 1 3 and the positioning plate 2 5 contact the top of the glass;

[0052] S2: The motor 13 is started to drive the guide shaft 27 to rotate. The rotating guide shaft 27 drives the rotating rod 18 to rotate, thereby driving the driving gear 16 to rotate. The rotating driving gear 16 drives the rack rods 8 on both sides of its circumference to move horizontally in opposite directions through the meshing relationship with the rack rod 8;

[0053] S3: The end of the moving rack rod 8 drives the two positioning plates 2 5 to expand to both sides. At the same time, the rotating rod 18 drives the rotating plate 17 at its bottom to rotate, and the L-shaped guide rod 9 located on the top of the rotating plate 17 performs an expansion action, and the two positioning plates 1 3 also expand outward, and drive the telescopic rod 10 to perform a telescopic action;

[0054] S4: When the positioning plate 1 3 and the positioning plate 2 5 are unfolded outward, when the card plate 4 at the bottom passes over the edge of the glass, the spring 23 is stretched to drive the connecting plate 21 to slide downward, and the card plate 4 is ejected from the storage groove 20, so that the side of the card plate 4 fits against the edge of the glass, thereby achieving positioning of the four sides of the glass.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A super-large glass measuring, positioning and controlling device, comprising a mounting plate (2), characterized in that: The outer walls on both sides of the top of the mounting plate (2) are respectively provided with hangers (1), and the top of the hangers (1) is provided with anchor bolts (7), the middle outer wall on the top of the mounting plate (2) is provided with a motor (13), and the bottom of the mounting plate (2) is provided with a rotating opening and closing mechanism, the output end of the motor (13) is movably connected to the driving end of the rotating opening and closing mechanism, the four sides of the rotating opening and closing mechanism are respectively fixedly connected with positioning plate 1 (3) and positioning plate 2 (5), and the bottoms of positioning plate 1 (3) and positioning plate 2 (5) are connected with a clamping plate (4) through a telescopic component, the opposite sides of every two positioning plates 1 (3) and every two positioning plates 2 (5) are respectively fixedly connected with a displacement sensor (19), the bottom rotating end of the rotating opening and closing mechanism is fixedly connected with a rotating plate (17), and the bottom sides of the rotating plate (17) are respectively fixedly connected with microscopic cameras (26); The rotating opening and closing mechanism comprises a rack rod (8), an L-shaped guide rod (9), a telescopic rod (10), a rotating shaft (11), a bearing seat (14), a rotating shaft (15), a driving gear (16), a rotating rod (18) and a guide shaft (27), wherein the guide shaft (27) is connected to the output shaft end of the motor (13) through a coupling, a clamping hole (28) is formed on the middle outer wall of the mounting plate (2), and the rotating rod (18) is fixedly connected to the clamping hole (28) through a bearing, the driving gear (16) is arranged on the circumference of the rotating rod (18), the top outer wall of the positioning plate (5) is respectively fixedly connected to the L-shaped bracket (6), one end of the rack rod (8) is arranged on one side of the top of the L-shaped bracket (6), and the rack The rod (8) is meshed with the driving gear (16), the second rotating shaft (15) is arranged on the outer wall of the middle top of the rotating plate (17), the L-shaped guide rod (9) is arranged on the top of the second rotating shaft (15), the bearing seat (14) is sleeved on the circumference of the rotating rod (18) close to the bottom of the driving gear (16), the first rotating shaft (11) is arranged at the bottom of the other end of the L-shaped guide rod (9), the extended rod end surface of the telescopic rod (10) is fixedly connected to both sides of the circumference of the bearing seat (14), the end of the telescopic rod (10) away from the bearing seat (14) is fixedly connected to one side of the positioning plate (3), and the bottom end of the first rotating shaft (11) is respectively rotatably matched with the top outer walls of the positioning plate (3) and the second positioning plate (5); The telescopic assembly comprises a fixed plate (12), a receiving groove (20), a connecting plate (21), a limiting plate (22) and a spring (23), wherein the fixed plate (12) is arranged at the bottom of the first positioning plate (3) and the second positioning plate (5), the receiving groove (20) is opened at the bottom of the fixed plate (12), and an inner cavity is opened inside one side of the first positioning plate (3) and the second positioning plate (5), and through holes with equal distances are opened between the inner cavity and the receiving groove (20), the limiting plate (22) is fixedly connected to the inner walls on both sides of the through hole, the connecting plate (21) is slidably connected to the opposite side of the limiting plate (22), the two ends of the spring (23) are respectively fixedly connected to the opposite side of the connecting plate (21) and the inner cavity, the outer wall of the bottom of the rotating plate (17) is bonded with a pad (24), and storage boxes (25) are respectively fixedly installed on both sides of the bottom of the pad (24), and the microscopic cameras (26) are axially symmetrically distributed on both sides of the pad (24).

2. The control method of the ultra-large glass measurement and positioning control device according to claim 1 is characterized in that: The following steps are involved: S1: Install the whole device above the glass to be measured through the anchor bolt (7) on the top of the hanger (1), and make the clamping plate (4) at the bottom of the positioning plate 1 (3) and the positioning plate 2 (5) contact the top of the glass; S2: The motor (13) is started to drive the guide shaft (27) to rotate. The rotating guide shaft (27) drives the rotating rod (18) to rotate, thereby driving the driving gear (16) to rotate. The rotating driving gear (16) drives the rack rods (8) on both sides of its circumference to move horizontally in opposite directions through the meshing relationship with the rack rod (8); S3: The displaced end of the rack rod (8) drives the two positioning plates (5) to expand to both sides. At the same time, the rotating rod (18) drives the rotating plate (17) at its bottom to rotate, and the L-shaped guide rod (9) located on the top of the rotating plate (17) performs an expansion action. The two positioning plates (3) also expand outwards and drive the telescopic rod (10) to perform a telescopic action. S4: When the positioning plate 1 (3) and the positioning plate 2 (5) are unfolded outward, and the clamping plate (4) at the bottom thereof passes over the edge of the glass, the spring (23) is stretched to drive the connecting plate (21) to slide downward, and the clamping plate (4) is ejected from the receiving groove (20), so that the side surface of the clamping plate (4) is in contact with the edge of the glass, thereby achieving positioning of the four sides of the glass.

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