Glass plate center positioning clamping device

Abstract

This utility model relates to a glass plate center positioning and clamping device, which includes a platform and a centering mechanism. The glass plate is placed flat on the upper surface of the platform, and multiple clearance grooves are formed around the glass plate on the platform. Each clearance groove extends from the outside to the inside, and its inner end is located directly below the glass plate. The centering mechanism includes multiple push rods corresponding to the clearance grooves and a power component that drives each push rod to reciprocate along the corresponding clearance groove. This utility model, on the one hand, utilizes the multi-directional clearance grooves formed on the platform that extend into the bottom of the glass plate. As the multiple push rods retract inward along the clearance grooves, the glass plate is centered, meeting the needs of center positioning and clamping of glass plates of various specifications, and is highly practical. On the other hand, by forming point or line contact between each push rod and the side of the glass plate, the resistance generated by the glass plate during clamping can be effectively reduced, significantly reducing the probability of glass plate deformation and improving the material handling accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of glass processing technology, specifically relating to a glass plate center positioning and clamping device. Background Technology

[0002] Currently, during the processing of screen glass, such as in the edge grinding process, a transfer suction cup is usually needed to transfer the glass plate to the edge grinding station, where the grinding wheel grinds the sides and diagonals of the glass plate. The positional accuracy of the glass plate is very high during grinding, so the glass plate needs to be centered and positioned before grinding.

[0003] A Chinese patent with publication number CN222794651U discloses an intelligent positioning stage for photovoltaic glass production. The stage includes a positioning plate. A longitudinal displacement plate is movably mounted on the center of the top wall of the positioning plate in the front-back direction. A transverse displacement plate is movably mounted on the center of the top wall of the longitudinal displacement plate in the left-right direction. The surface areas of both the longitudinal and transverse displacement plates are smaller than the surface area of ​​the photovoltaic glass. Suction cups are arranged around the top of the transverse displacement plate. Activating servo motors one and two drives two positioning clamps one and two to abut against the perimeter of the photovoltaic glass, pushing the photovoltaic glass. This causes the longitudinal displacement plate to move in the front-back direction and the transverse displacement plate to move in the left-right direction, ensuring that the center of the photovoltaic glass coincides with the center of the positioning plate.

[0004] However, in actual production processes, existing technologies have the following drawbacks:

[0005] 1. It is only applicable to large-area glass (i.e., the surface area of ​​the glass is greater than the surface area of ​​the displacement plate). For small-area glass, it cannot ensure that the clamping blocks are accurately pushed from all sides of the glass for centering and positioning. Therefore, it is difficult to meet the positioning needs of glass of different specifications at the same time, which has limitations.

[0006] 2. The large contact area between the clamping blocks and the sides of the glass makes it easy to cause glass wear and deformation when performing material handling operations while clamping and positioning the glass around its perimeter. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved glass plate center positioning clamping device.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A glass plate center positioning and clamping device includes a platform and a centering mechanism. The glass plate is placed flat on the upper surface of the platform, and multiple clearance grooves are formed on the platform around the glass plate. Each clearance groove extends from the outside to the inside and its inner end is located directly below the glass plate. The centering mechanism includes multiple push rods corresponding to the multiple clearance grooves and a power component that drives each push rod to reciprocate along the corresponding clearance groove. Each push rod on each side forms a point or line contact with the corresponding side of the glass plate. The multiple push rods retract inward along the clearance groove with the center line of the platform as a reference and clamp the glass plate around its perimeter. The center line of the glass plate then coincides with the center line of the platform.

[0010] Preferably, the extension direction of each clearance groove is perpendicular to the extension direction of the corresponding glass plate side. This prevents the glass plate from shifting during the alignment process and improves positioning accuracy.

[0011] Preferably, the platform is rectangular, with multiple clearance slots on each side extending inward from the corresponding side edge of the platform and having their inner ends flush. Here, the clearance slots are connected to the outer side of the platform to facilitate continuous alignment and clamping of large-area glass plates (glass plate surface area is larger than platform surface area) and small-area glass plates (glass plate surface area is smaller than platform surface area).

[0012] Specifically, the upper surface of the platform is divided into a first region located between the inner ends of multiple clearance grooves and a second region located outside the first region. When placing the material, the glass plate is placed from the center into the first region, extends into the second region from the side, or protrudes out of the second region.

[0013] Furthermore, in the orthographic projection on the horizontal plane, the area of ​​the first region is S1, the area of ​​the stage is S2, and the area of ​​the glass plate is defined as s, where S1≤s≤1.2S2. This layout satisfies the positioning and clamping requirements of glass plates of various sizes while also preventing bending deformation caused by the edge of the largest glass plate extending too far beyond the stage.

[0014] Preferably, each push rod is a cylinder, and when clamped, the side wall of the cylinder forms line contact with the edge of the glass plate; the push rods on any two opposite sides are aligned one-to-one. This design is simple and easy to assemble and implement.

[0015] Preferably, each push rod includes a rod body and a pusher assembly that is rotatably connected to the upper end of the rod body about a vertical centerline, wherein the pusher assembly extends from bottom to top through a corresponding clearance groove. Here, during correction, the pusher assembly can rotate freely to form rolling contact with the side of the glass plate, reducing friction and minimizing wear on the edge of the glass plate.

[0016] Preferably, the extension directions of the adjacent two sides of the glass plate are defined as a first direction and a second direction, respectively. The power component includes a first power track and a second power track that are staggered and arranged below the platform and extend along the first direction and the second direction, respectively. The push rod on each side is connected to the first power track and the second power track through a shift seat.

[0017] Preferably, the first and second power tracks each include a track body and a power screw for driving the push rods on opposite sides to move synchronously towards or away from each other.

[0018] Furthermore, the stage and the centering mechanism constitute a positioning group, with at least two positioning groups arranged side-by-side at intervals. This effectively improves the positioning and clamping efficiency of the glass plate.

[0019] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] Existing technologies are only suitable for large-area glass (i.e., the surface area of ​​the glass is greater than the surface area of ​​the displacement plate). For small-area glass, it is impossible to ensure that the clamping blocks are accurately pushed from all sides of the glass for centering and positioning. Therefore, it is difficult to meet the positioning needs of different glass sizes at the same time, which has limitations. The contact area between the clamping blocks and the sides of the glass is large, which can easily cause glass wear and deformation when the glass is clamped and positioned on all sides. This application redesigns the structure of the glass plate center positioning clamping device in an overall way, which cleverly solves the shortcomings and defects of the existing technology. After adopting this center positioning clamping device, the glass plate is placed flat on the upper surface of the platform. The push rods on all sides move along the corresponding clearance grooves and clamp the glass plate on all sides by point or line contact with the center line of the platform as a reference. The center line of the glass plate then coincides with the center line of the platform to complete the positioning. Therefore, compared with the prior art, this utility model has two advantages. First, based on the multi-directional clearance grooves formed on the platform that extend into the bottom of the glass plate, the glass plate is centered as multiple push rods retract inward along the clearance grooves, which meets the needs of center positioning and clamping of glass plates of various specifications and is highly practical. Second, by forming point or line contact between each push rod and the side of the glass plate, the resistance generated by the glass plate under clamping can be effectively reduced, the probability of glass plate deformation can be significantly reduced, and the material handling accuracy can be improved. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the glass plate center positioning and clamping device of this utility model;

[0023] Figure 2 for Figure 1 Enlarged schematic diagram of a local part of the structure;

[0024] Figure 3 for Figure 2 A top-down view;

[0025] Figure 4 for Figure 2 Enlarged schematic diagram of a local part of the structure;

[0026] Wherein: 1, platform; c, clearance groove; q1, first region; q2, second region;

[0027] 2. Centering mechanism; 20. Push rod; a0. Rod body; a1. Pushing component; 21. Power component; z. Shifting seat; 211. First power track; 212. Second power track; b0. Track body; b1. Power lead screw;

[0028] B. Glass plate. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0034] like Figures 1 to 4 As shown, the glass plate center positioning and clamping device of this embodiment includes a platform 1 and a centering mechanism 2; the glass plate B of this embodiment is rectangular.

[0035] In this example, stage 1 and centering mechanism 2 constitute a positioning group, and there are at least two positioning groups arranged side by side with intervals. This effectively improves the positioning and clamping efficiency of the glass plate.

[0036] The structure of one of the positioning groups will be explained below, and the other will also be clear and can be implemented.

[0037] Specifically, glass plate B is placed flat on the upper surface of stage 1. Multiple clearance grooves c are formed on stage 1 around glass plate B. Each clearance groove c extends from the outside to the inside and its inner end is located directly below glass plate B. Each clearance groove c penetrates stage 1 in the vertical direction.

[0038] For ease of implementation, the platform 1 is rectangular, with three parallel and spaced clearance grooves c on each side. Each clearance groove c extends inward from the corresponding side of the platform 1, and the inner ends of the three clearance grooves c on the same side are flush. Here, the clearance grooves are connected to the outside of the platform to facilitate continuous alignment and clamping of large-area glass plates (glass plate surface area is larger than platform surface area) and small-area glass plates (glass plate surface area is smaller than platform surface area).

[0039] Meanwhile, the extension direction of each clearance groove c is perpendicular to the extension direction of the corresponding side of the glass plate B; and during clamping and positioning, each side of the glass plate B is parallel to the corresponding side of the stage 1. This prevents the glass plate from shifting during the alignment process, improving positioning accuracy.

[0040] In some specific embodiments, the upper surface of the stage 1 is divided into a first region q1 located between the inner ends of the plurality of clearance grooves c and a second region q2 located around the first region q1. In other words, the inner ends of the plurality of clearance grooves c around the perimeter form the first region q1, and the edge of the stage 1 and the inner ends of the plurality of clearance grooves c around the perimeter form the second region q2. When placing the material, the glass plate B is placed from the center into the first region q1, extends into the second region q2 from the side, or protrudes out of the second region q2.

[0041] Furthermore, in the orthographic projection on the horizontal plane, the area of ​​the first region q1 is S1, the area of ​​the stage 1 is S2, and the area of ​​the glass plate B is defined as s, where S1 < S2 and S1 ≤ s ≤ 1.2S2. This layout satisfies the positioning and clamping of multiple glass plates while avoiding bending deformation caused by the edge of the largest glass plate extending too far beyond the stage.

[0042] In this example, the centering mechanism 2 includes multiple push rods 20 corresponding to multiple clearance grooves c, and a power component 21 that drives each push rod 20 to reciprocate along the corresponding clearance groove c. Each push rod 20 on each side forms point or line contact with the corresponding side of the glass plate B. The multiple push rods 20 retract inward along the clearance groove c with the center line of the platform 1 as a reference and clamp the glass plate B around its perimeter. The center line of the glass plate B then coincides with the center line of the platform 1.

[0043] To further facilitate implementation, each push rod 20 is a cylinder, and when clamped, the side wall of the cylinder forms line contact with the edge of the glass plate B; the push rods 20 on any two opposite sides are aligned one-to-one. This design is simple and easy to assemble and implement.

[0044] In some specific embodiments, each push rod 20 includes a rod body a0 and a pusher segment a1 that is rotatably connected to the upper end of the rod body a0 about a vertical centerline, wherein the pusher segment a1 extends from bottom to top through a corresponding clearance groove c. Here, during correction, the pusher segment can rotate freely to form rolling contact with the side of the glass plate, reducing friction and reducing wear on the edge of the glass plate.

[0045] Meanwhile, the extension directions of the adjacent two sides of the glass plate B are defined as the first direction and the second direction, respectively. The power component 21 includes a first power track 211 and a second power track 212 that are disposed below the platform 1 and staggered vertically and extend along the first direction and the second direction, respectively. The push rod 20 on each side is connected to the first power track 211 and the second power track 212 through the shift seat z.

[0046] In addition, the first power track 211 and the second power track 212 each include a track body b0 and a power screw b1 for driving the push rods 20 on opposite sides to move synchronously towards or away from each other.

[0047] In summary, after adopting this center positioning clamping device, the glass plate is placed flat on the upper surface of the platform. The push rods around the plate move along the corresponding clearance grooves, and the glass plate is clamped around the plate by point or line contact with the center line of the platform as a reference. The center line of the glass plate then coincides with the center line of the platform to complete the positioning. Therefore, compared with the prior art, this utility model has several advantages. First, based on the multi-directional clearance grooves formed on the platform that extend into the bottom of the glass plate, the glass plate is centered as multiple push rods converge inward along the clearance grooves, meeting the needs for center positioning and clamping of glass plates of various specifications, thus demonstrating strong practicality. Second, by forming point or line contact between each push rod and the side of the glass plate, the resistance generated by the glass plate under clamping can be effectively reduced, significantly reducing the probability of glass plate deformation and improving the material handling accuracy. Third, the clearance grooves are connected to the outer side of the platform, facilitating continuous alignment and clamping of large-area glass plates (glass plate surface area is larger than platform surface area) and small-area glass plates (glass plate surface area is smaller than platform surface area). Fourth, while meeting the positioning and clamping needs of glass plates of various specifications, it can also avoid the bending deformation problem caused by the edge of the largest specification glass plate extending too far out of the platform. Fifth, during the correction process, the pusher can rotate freely to form rolling contact with the side of the glass plate, reducing friction and reducing wear on the edge of the glass plate.

[0048] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A glass plate center positioning and clamping device, comprising a platform and a centering mechanism, wherein the glass plate is placed flat on the upper surface of the platform, characterized in that, The platform has multiple clearance grooves formed around the glass plate, each clearance groove extending from the outside inwards with its inner end located directly below the glass plate; the centering mechanism includes multiple push rods corresponding one-to-one with the multiple clearance grooves, and a power component driving each push rod to reciprocate along the corresponding clearance groove, wherein each push rod on each side forms point or line contact with the corresponding side of the glass plate, the multiple push rods retract inwards along the clearance groove with the platform centerline as a reference and clamp the glass plate around its perimeter, and the centerline of the glass plate coincides with the platform centerline.

2. The glass plate center positioning and clamping device according to claim 1, characterized in that, The extension direction of each of the aforementioned clearance grooves is perpendicular to the extension direction of the corresponding glass plate side.

3. The glass plate center positioning and clamping device according to claim 1, characterized in that, The platform is rectangular, and multiple clearance slots on each side extend inward from the corresponding side of the platform with their inner ends flush.

4. The glass plate center positioning and clamping device according to claim 3, characterized in that, The upper surface of the platform is divided into a first region located between the inner ends of the plurality of clearance grooves and a second region located around the first region. When placing the material, the glass plate is placed in the first region from the center, extends into the second region from the side, or protrudes out of the second region.

5. The glass plate center positioning and clamping device according to claim 4, characterized in that, In the orthographic projection onto the horizontal plane, the area of ​​the first region is S1, the area of ​​the stage is S2, and the area of ​​the glass plate is defined as s, where S1≤s≤1.2S2.

6. The glass plate center positioning and clamping device according to claim 1, characterized in that, Each push rod is a cylinder, and when clamped, the side wall of the cylinder forms line contact with the edge of the glass plate; the push rods on any two opposite sides are aligned one-to-one.

7. The glass plate center positioning and clamping device according to claim 2, characterized in that, Each push rod includes a rod body and a pusher assembly that is rotatably connected to the upper end of the rod body about a vertical center line, wherein the pusher assembly extends from bottom to top through the corresponding clearance groove.

8. The glass plate center positioning and clamping device according to claim 1, characterized in that, The extension directions of the adjacent two sides of the glass plate are defined as the first direction and the second direction, respectively. The power component includes a first power track and a second power track that are staggered and arranged below the platform and extend along the first direction and the second direction, respectively. The push rod on each side is connected to the first power track and the second power track through a shift seat.

9. The glass plate center positioning and clamping device according to claim 1, characterized in that, The first and second power tracks each include a track body and a power screw used to drive the push rods on opposite sides to move synchronously towards or away from each other.

10. The glass plate center positioning and clamping device according to claim 1, characterized in that, The platform and the centering mechanism constitute a positioning group, and there are at least two positioning groups arranged side by side at intervals.

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