Precise positioning sheet discharging platform

Abstract

The invention relates to an accurate positioning unloading platform which is used for accurate positioning before glass unloading and comprises a rack system, a belt assembly, a power transmission assembly, a front positioning assembly, a side edge positioning assembly and a positioning follow-up platform system. The rack system is fixed to the ground through ground feet and supports the belt assembly, the power transmission assembly, the front positioning assembly, the side edge positioning assembly and the positioning follow-up platform system. The power transmission comprises a servo motor matched with a planetary reducer, and a synchronous belt is driven to drive a belt assembly to convey glass; the front positioning part is arranged at the front end of the belt assembly and used for limiting advancing of the glass in the conveying direction. The side edge positioning assembly comprises a fixed side positioning wheel and a movable side positioning plate and is used for achieving lateral positioning of glass in the width direction, and the movable side positioning plate is driven by a multi-stroke air cylinder to achieve approaching and returning. The positioning follow-up platform system comprises a lifting universal ball supporting platform, and a universal ball is lifted through a guide air cylinder, so that glass is in a dry-friction-free state in the positioning process.

Description

Technical Field

[0001] The present invention belongs to the field of glass deep processing production lines, and particularly relates to an accurately positioning glass unloading platform. Background Art

[0002] In the field of glass deep processing, the glass unloading platform, as a key device in the automated production line, its main function is to accurately move and position the cut or edge-ground glass plate to a specified position for subsequent processes (such as cleaning, tempering, lamination, etc.) to continue processing. With the development of intelligent manufacturing, higher requirements are put forward for the accuracy, speed, and stability of glass positioning;

[0003] Existing glass unloading platforms have problems such as insufficient positioning accuracy, slow response speed, and poor shock resistance. Especially when dealing with large-sized or special-shaped glass, glass misalignment, deviation, and even damage are likely to occur, affecting the overall production efficiency and product qualification rate. In addition, some structures have problems such as short service life, frequent maintenance, and cumbersome operation during high-frequency operation, restricting the efficient and stable operation of the equipment;

[0004] Traditional glass unloading platforms mostly use simple mechanical limit or manual assistance methods for positioning, with low automation and large errors, and it is difficult to meet the requirements of high precision and high consistency. At the same time, some platforms use linear drive mechanisms such as chains and cylinders, which have problems such as response lag, high noise, and complex structures, and insufficient consideration is given to wear resistance and anti-aging under long-term operating conditions, resulting in high maintenance costs and unstable operation. In addition, the modularity, scalability, and human-machine operation convenience of the equipment are generally poor. Summary of the Invention

[0005] The present invention proposes an accurately positioning glass unloading platform, optimizes the structural design, and can combine sensors and intelligent control on this basis to achieve rapid positioning and automatic correction of the glass plate, with higher positioning accuracy and operating stability; by adopting low-friction guide rails, shock-absorbing buffer structures, and maintainable modular design, the durability and maintenance convenience of the platform are effectively improved; the control experience is improved by combining the principles of ergonomics, reducing the possibility of manual intervention and misoperation; the overall solution not only improves production efficiency, reduces energy consumption and maintenance costs, but also improves the compatibility and adaptability of the equipment to various specifications of glass.

[0006] The purpose of the present invention is to provide an accurately positioning glass unloading platform for accurate positioning before glass unloading, including:

[0007] A frame system, a belt assembly, a power transmission, a front positioning, a side positioning assembly, and a positioning follower platform system;

[0008] Among them, the frame system is fixed to the ground through anchor bolts, supporting the belt assembly, the power transmission, the front positioning, the side positioning assembly, and the positioning follower platform system;

[0009] The power transmission includes a servo motor equipped with a planetary reducer, which drives a synchronous belt to drive a belt assembly to convey glass.

[0010] The front positioning is set at the front end of the belt assembly and is used to limit the forward movement of the glass in the conveying direction.

[0011] The side positioning assembly includes a fixed side positioning wheel and a movable side positioning plate, which are used to achieve the lateral positioning of the glass in the width direction. The movable side positioning plate is driven by a multi-stroke cylinder to move closer and return.

[0012] The positioning follower platform system includes a support platform for lifting universal balls. The universal balls are lifted by a guiding cylinder, so that the glass is in a state of dry friction-free during the positioning process.

[0013] The technical solution of this application has the following technical features: In order to solve the problems of insufficient positioning accuracy of the existing glass unloading positioning platform and easy scratching of the glass, a rigid frame system is adopted to support the belt conveying assembly and high-precision servo reduction power transmission, combined with a two-way mechanical flexible positioning structure of a mechanical front positioning wheel and a side positioning assembly, and a positioning follower platform composed of universal balls is used to achieve precise four-sided mechanical positioning of the glass in the conveying direction and width direction, and the dry friction during the glass positioning process is eliminated through the positioning follower platform, overcoming the defects of low positioning accuracy in the traditional motor stop-piece calculation, large friction force and the need for the unloading manipulator to adapt to the system additionally, achieving the technical effects of high positioning accuracy, no damage to the glass, neat stacking and high automation degree, significantly improving the efficiency and quality of the glass unloading operation, and reducing the equipment maintenance cost and the need for manual intervention.

[0014] A technical solution provided by this application also has the following technical features:

[0015] Preferably, in an embodiment of this application, the belt assembly includes an aluminum profile body, a mounting plate, a driving pulley, a tensioning pulley, a belt guide groove and a belt. The driving pulley is driven by the power transmission to form a glass conveying surface.

[0016] Preferably, in an embodiment of this application, the front positioning includes a polyurethane-coated wheel, which is installed at the front end of the belt assembly and realizes the forward positioning of the glass through mechanical collision.

[0017] Preferably, in an embodiment of this application, the fixed side positioning wheel of the side positioning assembly is a follower wheel installed on the frame system and serves as a reference for the lateral positioning of the glass.

[0018] Preferably, in an embodiment of this application, the positioning follower platform system is composed of at least a pair of universal balls and support bars, and the mounting plate is lifted by a guiding cylinder, so that the glass is supported on the universal ball surface in the positioning state for lateral adjustment.

[0019] Preferably, in an embodiment of the present application, the servo motor in the power transmission is connected to the driving pulley through a planetary reducer, driving the transmission shaft to operate in coordination with a plurality of belt assemblies to achieve high-precision control.

[0020] Preferably, in an embodiment of the present application, the moving-side positioning plate is arranged on the moving-side mounting bracket and is driven by two multi-stroke cylinders, and its stroke range adapts to the positioning requirements of glass with different widths.

[0021] Preferably, in an embodiment of the present application, the frame system is formed by welding profiles into a rigid frame, which is used to install and carry belt assemblies, power transmission, front positioning, side positioning components and the positioning follower platform system, and is connected to the ground through anchor bolts to ensure positioning stability.

[0022] Preferably, in an embodiment of the present application, the moving-side multi-stroke cylinder is of a two-stage telescopic structure and is provided with an adjustable stroke limiting device, which can automatically adjust the pushing distance according to the width of glass with different specifications to adapt to the positioning requirements of glass of various sizes.

[0023] Preferably, in an embodiment of the present application, the universal ball is a composite material sphere with an elastic buffer structure, which is used to reduce the vibration and impact during the follow-up support of the glass.

[0024] Preferably, in an embodiment of the present application, the guiding cylinder of the positioning follower platform system is equipped with a position feedback device, which is used to monitor the lifting height of the follower platform and perform closed-loop control through the upper computer to make the height consistent during the positioning process.

[0025] Preferably, in an embodiment of the present application, the polyurethane-coated wheel in the front positioning is provided with an elastic limiting structure, which is used to buffer the impact force of the glass and keep the contact position constant.

[0026] Preferably, in an embodiment of the present application, the follower platform system includes a transverse guide rail mechanism for adjusting the distance between universal balls, and the guide rail mechanism is driven by a servo motor to enable stable support for glass of different sizes.

[0027] Preferably, in an embodiment of the present application, a flexible limiting mechanism is arranged at the front end of the moving-side positioning plate, and the flexible limiting mechanism includes an elastic pressing strip and a rebound buffer structure, which are used to provide buffering at the moment of glass contact.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention.

[0029] 1. To solve the problems of low glass positioning accuracy and uneven stacking, this application adopts a two-way mechanical flexible positioning structure of a mechanical front positioning wheel and a side positioning component, overcoming the defect of insufficient positioning accuracy of traditional motors, achieving high-precision four-side mechanical positioning, and significantly improving the technical effect of the glass stacking neatness.

[0030] 2. To solve the problem of easy abrasion during the glass positioning process, this application adopts a positioning follower platform composed of universal balls and support bars to achieve dry-friction-free support during glass positioning, overcoming the defect of large friction of the traditional platform resulting in glass damage, and achieving the technical effect of effectively protecting the integrity of the glass surface.

[0031] 3. To solve the problem that the glass unloading manipulator needs to adapt to glasses in different positioning states, this application adopts a high-rigidity frame system combined with precise servo reduction power transmission to achieve stable and accurate glass conveying and positioning, overcoming the defects of complex and costly manipulator adaptation systems, and achieving the technical effects of simplifying the design of the glass unloading manipulator and reducing the overall equipment cost.

[0032] 4. To solve the problems of low automation level and high manual participation during the positioning process, this application adopts a servo motor and a cylinder with full-automatic control to drive the side positioning plate to achieve automatic adjustment and positioning in the width direction of the glass, overcoming the defects of a large amount of traditional manual intervention and low efficiency, and achieving the technical effects of efficient automatic operation and labor cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0034] Figure 1 is a schematic structural diagram of a precise positioning glass unloading platform of the present invention;

[0035] Figure 2 is a schematic side positioning diagram of a precise positioning glass unloading platform of the present invention;

[0036] Figure 3 is a schematic diagram of a positioning follower platform system of a precise positioning glass unloading platform of the present invention;

[0037] Elements in the figure:

[0038] 1. Frame system

[0039] 2. Belt assembly

[0040] 3. Power transmission

[0041] 4. Front positioning

[0042] 5. Side positioning component

[0043] 6. Positioning Follow-up Platform System

[0044] 51. Fixed-side Mounting Bracket

[0045] 52. Fixed-side Positioning Wheel

[0046] 53. Moving-side Mounting Bracket

[0047] 54. Moving-side Multi-stroke Cylinder

[0048] 55. Moving-side Positioning Plate

[0049] 61. Guided Cylinder

[0050] 62. Mounting Plate

[0051] 63. Universal Ball. Detailed Embodiments

[0052] The following further elaborates on the detailed embodiments of the present application in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present application and are not intended to limit the present invention.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention 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 should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0056] With the development of the country and the change of market demand, higher requirements are put forward for the glass deep processing production line, and higher requirements are also put forward for the neatness of glass stacking and the control process. Aiming at the problems of only soft positioning on the existing glass unloading platform, the glass unloading machine needs an adaptation system to adapt to the glass, and the glass stacking after unloading is not neat, because the inaccurate positioning affects the unloading efficiency. The glass deep processing production line needs an accurately positioned glass unloading platform to meet the mechanical accurate positioning required by the production line.

[0057] Such as Figures 1-3 , an accurately positioned glass unloading platform, which is used to complete the accurate positioning of the glass before glass unloading, so as to improve the glass stacking situation, and is composed of a frame system 1, a belt assembly 2, a power transmission 3, a front positioning 4, a side positioning assembly 5, and a positioning follower platform system 6;

[0058] The frame system 1 is fixed to the ground through anchor bolts. The frame system 1 includes a support for the belt assembly 2, a power transmission 3, a front positioning 4, a side positioning assembly 5, and a positioning follower platform system 6; The servo reducer is installed on the frame system 1. The servo reducer drives the driving pulley, and the driving pulley drives the driven pulley and the transmission shaft through the synchronous belt, so as to drive at least one belt assembly 2 to run and convey. At least one front positioning 4 wheel is installed at the front of the belt assembly 2 through a bracket; At least one positioning wheel of the side positioning assembly 5 is installed on one side of the frame to form the fixed side of the side positioning assembly 5; The moving side frame of the side positioning assembly 5 is installed on the frame system 1, and two cylinders are installed on the frame. The moving side positioning plate is installed on the pistons of the two cylinders and runs back and forth;

[0059] Accurately mechanically position the glass in the advancing direction and width direction. The equipment provides a positioning follower platform to ensure that there is no dry friction during the positioning process of the glass and avoid abrasion during the positioning process, so as to realize width unloading and ensure the neatness of the unloading stack.

[0060] The elevation of the belt conveyor is the same as that of the straight line after the main line turns. After the glass enters the belt conveyor platform, the glass stops after contacting the front positioning 4, and then the positioning follower platform system 6 lifts at least a pair of universal ball 63 assemblies. The glass follows on the support platform of the universal ball 63. The moving side positioning block of the side positioning assembly 5 approaches the glass and pushes the glass until the glass touches the positioning side fixed wheel of the side positioning assembly 5, so as to complete the four-sided positioning. Then the moving side of the side returns to its original position, and the glass unloading machine can grasp and unload the glass;

[0061] The frame system 1 includes a rigid frame welded by profiles. The frame is used to support the belt assembly 2, the power transmission 3, the front positioning 4, the side positioning assembly 5, and the positioning follower platform system 6. The frame is fixedly supported and connected to the ground through anchor bolts;

[0062] The belt assembly 2 is composed of an aluminum profile main body, mounting plates, support frames, a driving pulley, a tensioning pulley, a belt, and a belt guide groove. The mounting plates are installed at both ends of the aluminum profile main body. The driving pulley and the tensioning pulley are installed at both ends through shafts and bearings. The belt guide groove is installed on the upper part of the aluminum profile. The belt is driven by the driving pulley to run. The belt assembly 2 is installed on the frame system 1 through the support frame; at least one belt assembly 2 forms a glass belt conveying surface;

[0063] The power transmission 3 is composed of a mounting bracket, a reduction motor, a synchronous belt pulley, a synchronous belt, and a transmission shaft. The servo motor with a planetary reducer is installed on the frame system 1 through the mounting bracket. The output shaft of the planetary reducer drives the driving pulley. The driving pulley drives the driven pulley through the synchronous belt. The driven pulley drives the transmission shaft. The transmission shaft drives the belt assembly 2 to run. The servo motor with a planetary reducer has high control precision and is beneficial for the front positioning 4 of the positioning platform;

[0064] The front positioning 4 is composed of a mounting shaft, a mounting bracket, bearings, and polyurethane-coated wheels. The polyurethane-coated wheels are installed on the mounting shaft through bearings. At least one follower front positioning 4 wheel is installed on the front of at least one belt assembly 2 through the mounting bracket. After the glass enters the belt conveying platform, it hits at least one front wheel, and then the glass stops running, thus completing the front and rear mechanical positioning.

[0065] The side positioning assembly 5 includes a fixed side positioning wheel 52 and a movable side positioning plate 55; the fixed side positioning wheel 52 is composed of a fixed side mounting bracket 51 and follower wheels. At least one follower wheel is installed on the fixed side mounting bracket 51. The fixed side mounting bracket 51 is installed on the frame of the frame system 1, and its main function is to serve as a reference for side positioning; the movable side positioning plate 55 includes a movable side mounting bracket 53, a movable side multi-stroke cylinder 54, and a movable side positioning plate 55. The movable side mounting bracket 53 is installed on the frame system 1. Two movable side multi-stroke cylinders 54 are installed on the movable side mounting bracket 53. The front parts of the pistons of the two movable side multi-stroke cylinders 54 are connected to the movable side positioning plate 55. When the movable side multi-stroke cylinder 54 acts, it pushes the movable side positioning plate 55 back and forth in the width direction, thus pushing the glass towards the fixed side of the side positioning assembly 5, thereby completing the positioning in the width direction. The movable side multi-stroke cylinder 54 can complete the width positioning of glass with different width specifications.

[0066] The positioning follower platform system 6 consists of at least a pair of universal balls 63 and their support bars to form a follower support plane. The universal balls 63 and the support bars are installed between the belt assemblies 2; the universal balls 63 and the support bars are equipped with a guiding cylinder 61 and a mounting plate 62; the guiding cylinder 61 with a belt is vertically installed on the frame system 1, the upper part of the cylinder piston of the guiding cylinder 61 with a belt is connected to the mounting plate 62, and at least a pair of universal balls 63 are installed on the mounting plate 62 to form a support line; at least a pair of such mounting plates 62 and support bars form a follower support platform, and the glass can complete the mechanical positioning in the width direction on this follower support platform, and there is no dry friction during the positioning of the glass.

[0067] Working mode: As Figure 1 shown, after the glass runs from the branch line of the deep processing main line to before the precise positioning glass unloading platform, the upper computer gives a signal to the precise positioning glass unloading platform to prepare to enter the precise positioning platform. The servo planetary reduction power transmission 3 drives the belt conveying plane composed of at least one belt assembly 2 to run. After the glass enters the belt running plane, it mechanically runs until the front edge of the glass touches the front positioning 4, and the belt conveying plane stops running, and the glass completes the mechanical positioning in the conveying direction; the universal balls and support bars of the positioning follower platform system 6 are driven by the lifting cylinder to lift up, and the support plane composed of the universal balls 63 lifts the glass to a height higher than the belt conveying plane. At this time, the moving side multi-stroke cylinder 54 of the side positioning assembly 5 drives the moving side positioning plate 55 to push the glass from the side to the fixed side of the side positioning assembly 5 until the other side of the glass contacts the fixed side, so as to complete the side positioning action of the glass, and thus complete the four-side mechanical positioning of the glass; then the glass unloading equipment of the glass deep processing production line stacks the glass, and then the equipment waits for the next piece of glass to enter for positioning.

[0068] As Figure 2 shown, the side positioning action is completed by the fixed side positioning wheel 52 and the moving side positioning plate 55. The moving side multi-stroke cylinder 54 acts to push the moving side positioning plate 55 back and forth in the width direction, so as to push the glass to the fixed side of the side positioning assembly 5, so as to complete the positioning in the width direction. The moving side multi-stroke cylinder 54 can complete the width positioning of glass with different width specifications;

[0069] As Figure 3 shown, the universal balls 63 and support bars form a follower support platform, and the glass can complete the mechanical positioning in the width direction on this follower support platform, and there is no dry friction during the positioning of the glass.

[0070] This precise positioning glass unloading platform can achieve precise mechanical positioning technology for glass. The positioning can realize mechanical positioning in the conveying direction and width direction, achieving four-side positioning with very high positioning accuracy. It eliminates the glass position adaptation system of the glass unloading machine or the glass unloading manipulator, improves the accuracy of glass unloading and stacking, avoids uneven stacking, and meets the packaging and customer requirements. The precise positioning platform is fully automated without manual participation, saving labor costs.

[0071] Currently, most domestic positioning glass unloading platforms use motor stop film calculation to position the glass, and then the glass unloading manipulator adapts to the glass softly positioned by the unloading platform. In this kind of positioning and unloading method, the positioning accuracy of the motor deceleration positioning of the unloading platform is not high, and there are relatively high requirements for the friction coefficient of the glass running platform. The glass unloading manipulator needs to adapt to the glass on the unloading platform, so it is necessary to increase the glass adaptation system of the manipulator, increasing the cost of the glass unloading manipulator. This precise positioning glass unloading platform uses mechanical flexible positioning to accurately position the glass mechanically, with high positioning accuracy, improving the stacking neatness of the glass during unloading and stacking, and can also eliminate the glass adaptation system of the mechanical hand for unloading, thus simplifying the program of the glass unloading machine and saving the cost of glass unloading. This precise positioning platform can be promoted to production lines with similar applications and has broad market prospects.

[0072] Generally speaking, the present invention aims to solve the technical problems such as insufficient positioning accuracy, poor adaptability, and easy damage of glass in the existing glass unloading positioning platform. By adopting a rigid frame system to support the belt conveying component and the power transmission device, efficient and stable glass conveying is achieved; combined with the mechanical flexible positioning structure of the front positioning wheel and the side positioning component, high-precision four-side positioning of the glass in the conveying direction and width direction is ensured; the positioning follow-up platform system is introduced, and frictionless follow-up support during the glass positioning process is realized through universal ball support, significantly reducing the risk of glass abrasion during positioning. In addition, the present invention also designs automatic belt tension adjustment, side positioning adaptive width adjustment, and multi-level anti-disconnection structures to improve the adaptability of the platform to glass of different sizes and specifications and the operation reliability, meeting high precision.

[0073] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A precise positioning down-sheet platform for precise positioning before glass down-sheeting, characterized in that, Including: A frame system (1), a belt assembly (2), a power transmission (3), a front positioning (4), a side positioning assembly (5), and a positioning follower platform system (6); Among them, the frame system (1) is fixed to the ground through anchor bolts, supporting the belt assembly (2), the power transmission (3), the front positioning (4), the side positioning assembly (5), and the positioning follower platform system (6); The power transmission (3) includes a servo motor with a planetary reducer, driving a synchronous belt to drive the belt assembly (2) to convey glass; The front positioning (4) is arranged at the front end of the belt assembly (2) to limit the forward movement of the glass in the conveying direction; The side positioning assembly (5) includes a fixed side positioning wheel (52) and a movable side positioning plate (55), which are used to achieve the lateral positioning of the glass in the width direction. The movable side positioning plate (55) is driven by a multi-stroke cylinder (54) to move closer and return; The positioning follower platform system (6) includes a support platform for lifting universal balls (63). The universal balls (63) are lifted by a guiding cylinder (61) to keep the glass in a state of dry friction-free during the positioning process.

2. The precisely positioned blanking platform according to claim 1, characterized in that, The belt assembly (2) includes an aluminum profile main body, a mounting plate, a driving pulley, a tensioning pulley, a belt guide groove, and a belt. The driving pulley is driven by the power transmission (3) to form a glass conveying surface.

3. The precise positioning lower sheet platform according to claim 1, wherein The front positioning (4) includes a polyurethane-coated wheel, which is installed at the front end of the belt assembly (2) to achieve the forward positioning of the glass through mechanical collision.

4. The precisely positioned blanking platform according to claim 1, wherein The fixed side positioning wheel (52) of the side positioning assembly (5) is a follower wheel installed on the frame system (1), serving as a lateral positioning reference for the glass.

5. The precise positioning lower sheet platform according to claim 1, characterized in that The positioning follower platform system (6) is composed of at least a pair of universal balls (63) and support bars, and the mounting plate (62) is driven by a guiding cylinder (61) to lift, enabling the glass to be supported on the universal ball surface for lateral adjustment in the positioning state.

6. The precise positioning lower sheet platform according to claim 1, characterized in that, The servo motor in the power transmission (3) is connected to the driving pulley through a planetary reducer, driving the transmission shaft to operate in coordination with multiple belt assemblies (2) to achieve high-precision control.

7. The precise positioning lower sheet platform according to claim 1, characterized in that, The movable side positioning plate (55) is arranged on the movable side mounting bracket (53) and is driven by two multi-stroke cylinders (54). Its stroke range adapts to the positioning requirements of glasses with different widths.

8. The precise positioning lower sheet platform according to claim 1, characterized in that, The frame system (1) is formed by welding profiles into a rigid frame, which is used to install and carry the belt assembly (2), the power transmission (3), the front positioning (4), the side positioning assembly (5), and the positioning follower platform system (6), and is connected to the ground through anchor bolts.

9. The precise positioning lower sheet platform according to claim 1, characterized in that, The movable side multi-stroke cylinder (54) is a two-stage telescopic structure, provided with an adjustable stroke limiting device.

10. A precise positioning lower sheet platform according to claim 1, characterized in that, The universal ball (63) is a composite material sphere with an elastic buffer structure, which is used to reduce the vibration and impact during the follower support process of the glass; The guiding cylinder (61) of the positioning follower platform system (6) is equipped with a position feedback device, which is used to monitor the lifting height of the follower platform and perform closed-loop control through the upper computer to make the height consistent during the positioning process; The polyurethane-coated wheel in the front positioning (4) is provided with an elastic limiting structure, which is used to buffer the impact force of the glass and keep the contact position constant; The follow-up platform system (6) includes a transverse guide rail mechanism for adjusting the spacing of the universal balls (63), and the guide rail mechanism is driven by a servo motor to stably support glasses of different sizes; A flexible limit mechanism is provided at the front end of the moving side positioning plate (55). The flexible limit mechanism includes an elastic pressing strip and a resilience buffer structure for providing buffering at the moment of glass contact.

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