Glass substrate laser marking workbench

Abstract

The invention discloses a glass substrate laser marking workbench which comprises a supporting platform suitable for bearing a glass substrate; the lifting platform is arranged at the lower part of the supporting platform, the lifting platform comprises a plurality of lifting modules, the plurality of lifting modules are distributed in different areas of the supporting platform, and the plurality of lifting modules synchronously ascend and descend, so that the focus surfaces of the glass substrates on the supporting platform are positioned at the same height; and the jacking mechanism is installed on the lifting table and located below the supporting platform, and the jacking mechanism is suitable for jacking the glass substrate upwards to be separated from the supporting platform so as to be suitable for grabbing the glass substrate. The laser marking workbench for the glass substrate has the advantages of being high in marking precision, stable in performance and the like.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic glass production technology, and in particular to a laser marking worktable for glass substrates. Background Technology

[0002] In related technologies, to accommodate glass substrates of varying thicknesses, a lifting platform is typically installed below the galvanometer of the marking machine. Adjusting its height allows for control of the focal point of the high-energy laser beam. While this approach is suitable for small-sized glass substrates, it exhibits significant limitations when facing the industry's growing demand for larger substrates. As substrate size increases, the number and overall volume of the galvanometer components also increase, leading to a significant increase in the size and weight of the lifting platform. This, in turn, places excessive load on the marble beam supporting the galvanometer and lifting unit, increasing the complexity of the structural design and potentially affecting the overall stability and reliability of the equipment. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a laser marking stage for glass substrates, which has advantages such as high marking accuracy and stable performance.

[0004] To achieve the above objectives, an embodiment of the present invention provides a glass substrate laser marking worktable, comprising: a support platform adapted to support a glass substrate; a lifting platform disposed below the support platform, the lifting platform including multiple lifting modules distributed in different areas of the support platform, the multiple lifting modules lifting synchronously to bring the focal plane of the glass substrate on the support platform to the same height; and a lifting mechanism installed on the lifting platform and located below the support platform, the lifting mechanism being adapted to lift the glass substrate upwards to detach it from the support platform, thereby facilitating the gripping of the glass substrate.

[0005] The glass substrate laser marking worktable according to embodiments of the present invention, by integrating the lifting function into a lifting platform at the bottom of the support platform, instead of the lifting unit located below the galvanometer in the traditional solution, fundamentally avoids the structural and performance problems caused by the increased size of the glass substrate, thereby significantly improving marking accuracy and system stability. Specifically, this application arranges the lifting platform at the bottom of the support platform, only needing to support the glass substrate and its adsorption device, without moving the heavy optical components. Multiple lifting modules are distributed in different areas of the support platform and achieve synchronous lifting, ensuring that the overall surface height of the large-size glass substrate is consistent, so that the entire marking area is within the optimal focal plane of the galvanometer, effectively guaranteeing marking accuracy. At the same time, since the galvanometer and optical system remain fixedly installed, the load requirements on key support structures such as the marble beam are greatly reduced, avoiding performance drift caused by structural stress or deformation, and improving the long-term stability and reliability of the entire machine.

[0006] Therefore, the glass substrate laser marking stage according to the present invention has the advantages of high marking accuracy and stable performance.

[0007] According to some specific embodiments of the present invention, the lifting platform further includes: a base; a lifting platform driving device, the lifting platform driving device being installed on the base; a support plate, the support plate being connected to the top of the plurality of lifting modules to support the support platform; and a transmission frame, the transmission frame being connected to the lifting platform driving device and being drively connected to the plurality of lifting modules to enable the plurality of lifting modules to lift synchronously.

[0008] According to some specific embodiments of the present invention, the lifting module includes: a first slider connected to the transmission frame, wherein the lifting platform driving device drives the first slider to move horizontally in a first direction through the transmission frame; and a second slider disposed above the first slider, wherein a mating inclined surface is formed between the first slider and the second slider, and the second slider moves up and down along the mating inclined surface and drives the support plate to move up and down.

[0009] According to some specific embodiments of the present invention, a plurality of the lifting modules are arranged in multiple rows in the first direction and in multiple columns in a second direction perpendicular to the first direction.

[0010] According to some specific embodiments of the present invention, the lifting module further includes: a limiting block, the limiting block being installed on the base and located on both sides of the movement paths of the first slider and the second slider.

[0011] According to some specific embodiments of the present invention, the lifting mechanism includes: a lifting drive device mounted on the lifting platform; a transmission mechanism connected to the lifting drive device; and a frame connected to the transmission mechanism. The lifting drive device drives the frame to move up and down through the transmission mechanism. The top of the frame is provided with a plurality of lifting rods, which pass through the support platform to lift the glass substrate upwards and detach it from the support platform.

[0012] According to some specific embodiments of the present invention, the lifting mechanism further includes: a plurality of rotating shafts, wherein the lifting drive device is connected to one of the rotating shafts and drives it to rotate; a gear mechanism, wherein the gear mechanism is connected to the end of the rotating shaft to enable the plurality of rotating shafts to rotate together; and a plurality of lifting seats, wherein the plurality of lifting seats are at the same height and each is constructed with a rack extending in a vertical direction, wherein the rack meshes with the gear mechanism to drive the plurality of lifting seats connected to the rack to rise and fall together.

[0013] According to some specific embodiments of the present invention, a plurality of the lifting bases are arranged in multiple rows and columns, and the rotating shafts are connected between adjacent lifting bases in the same row, and the rotating shafts are connected between at least one column of adjacent lifting bases.

[0014] According to some specific embodiments of the present invention, the support platform includes: an adsorption platform for adsorbing and fixing a glass substrate; and a limiting component disposed on the adsorption platform for blocking the side of the glass substrate.

[0015] According to some specific embodiments of the present invention, the limiting component includes: a connecting plate, the connecting plate being fixed to the output end of the driving mechanism; a push rod, the push rod being mounted on the connecting plate and reciprocating in the horizontal direction under the drive of the stop driving mechanism; and a baffle, the baffle being disposed at the front end of the push rod and used to contact the edge of the glass substrate to achieve limiting.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 2 This is a partial schematic diagram of a glass substrate laser marking worktable according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the support platform of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 4 This is another structural schematic diagram of the support platform of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the limiting component of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the lifting platform of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 7 This is a partial schematic diagram of the lifting platform of the glass substrate laser marking worktable according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the lifting mechanism of the glass substrate laser marking worktable according to an embodiment of the present invention.

[0018] Figure label: Glass substrate laser marking worktable 1, support platform 100, lifting platform 200, lifting mechanism 300 Adsorption stage 110, limiting assembly 120, connecting plate 121, push rod 122, baffle 123, limiting drive mechanism 124. Lifting module 210, base 220, lifting platform drive device 230, support plate 240, transmission frame 250 First slider 211, second slider 212, limiting block 213 Lifting drive device 310, transmission mechanism 320, frame 330, Rotating shaft 321, gear mechanism 322, lifting seat 323, rack 301, lifting rod 331. Detailed Implementation

[0019] In the description of this invention, 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," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, "first feature" and "second feature" may include one or more of the feature.

[0021] In the description of this invention, "a plurality of" means two or more.

[0022] In the description of this invention, the first feature "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or the first feature and the second feature not being in direct contact but being in contact through other features between them.

[0023] In the description of this invention, the first feature is referred to as "above," "over," or "on top" of the second feature, including directly above and diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0024] The following description, with reference to the accompanying drawings, describes a glass substrate laser marking worktable 1 according to an embodiment of the present invention.

[0025] like Figures 1-8 As shown, the glass substrate laser marking worktable 1 according to an embodiment of the present invention includes a support platform 100, a lifting platform 200 and a lifting mechanism 300.

[0026] The support platform 100 is adapted to support a glass substrate. A lifting platform 200 is disposed below the support platform 100. The lifting platform 200 includes multiple lifting modules 210 distributed in different areas of the support platform. The multiple lifting modules 210 move up and down synchronously so that the focal plane of the glass substrate on the support platform 100 is at the same height. A lifting mechanism 300 is mounted on the lifting platform 200 and located below the support platform 100. The lifting mechanism 300 is adapted to lift the glass substrate upwards, detaching it from the support platform 100, for gripping the glass substrate.

[0027] For example, in the glass substrate marking process, a robotic arm first places the glass substrate to be marked onto the lifting mechanism 300. Then, the lifting mechanism 300 moves downwards, smoothly placing the glass substrate onto the support platform 100. Subsequently, the lifting platform 200 located below the support platform 100 is activated, with multiple lifting modules 210 distributed in different areas moving up and down synchronously to precisely adjust the height of the support platform 100. This ensures that the surface of the glass substrate (i.e., the laser focal plane) is always at the optimal focal plane of the marking machine's galvanometer, thus achieving high-precision marking. After marking is completed, the lifting mechanism 300 moves upwards from below the support platform 100, lifting the glass substrate off the surface of the support platform 100, making it easier for the robotic arm to smoothly grasp and remove it, completing the entire marking process.

[0028] The glass substrate laser marking worktable 1 according to an embodiment of the present invention integrates the lifting function into the lifting platform 200 at the bottom of the support platform 100, instead of the lifting unit located below the galvanometer of the marking machine in the traditional solution. This fundamentally avoids the structural and performance problems caused by the increased size of the glass substrate, thereby significantly improving the marking accuracy and system stability. Specifically, this application arranges the lifting platform 200 at the lower part of the support platform 100, which only needs to support the glass substrate and its adsorption device, without moving the heavy optical components. Multiple lifting modules 210 are distributed in different areas of the support platform 100 and achieve synchronous lifting, which can ensure that the overall surface height of the large-size glass substrate is consistent, so that the entire marking area is within the optimal focal plane of the galvanometer, effectively ensuring the marking accuracy. At the same time, since the galvanometer and optical system remain fixedly installed, the load requirements on key support structures such as the marble beam are greatly reduced, avoiding performance drift caused by structural stress or deformation, and improving the long-term stability and reliability of the whole machine.

[0029] Therefore, the glass substrate laser marking stage 1 according to the present invention has the advantages of high marking accuracy and stable performance.

[0030] In some specific embodiments of the present invention, such as Figure 6 As shown, the lifting platform 200 also includes a base 220, a lifting platform drive device 230, a support plate 240, and a transmission frame 250. The lifting platform drive device 230 is mounted on the base 220. The support plate 240 is connected to the top of the multiple lifting modules 210 to support the support platform 100. The transmission frame 250 is connected to the lifting platform drive device 230 and is also drively connected to the multiple lifting modules 210 to enable the multiple lifting modules 210 to lift and lower synchronously.

[0031] For example, the lifting platform drive device 230 can be a servo motor, which is connected to the transmission frame 250. The lifting module 210 is installed on the transmission frame 250 and maintains a certain tilt angle with the transmission frame 250. When the lifting platform drive device 230 drives the transmission frame 250 to move in the horizontal direction, it will cause the lifting module 210 to move relative to the transmission frame 250 along the inclined slope.

[0032] The base 220 serves as the basic support structure for the entire lifting platform 200, providing a stable mounting platform for the lifting platform drive device 230 and ensuring stable operation of the power source. The lifting platform drive device 230 (such as a motor or cylinder), as a power output unit, is mounted on the base 220 and is responsible for providing the driving force required for lifting. The transmission frame 250 serves as the core linkage mechanism, with one end connected to the lifting platform drive device 230 and the other end connected to all lifting modules 210. It transmits the power of a single drive source evenly and synchronously to each lifting module 210, thereby forcing multi-point synchronous lifting and effectively avoiding tilting of the support platform or local height deviation caused by asynchronous operation of each lifting module 210. This ensures that the surface of the large-size glass substrate is always on the same horizontal plane throughout the marking area, thus guaranteeing the consistency of the laser focus position.

[0033] In some specific embodiments of the present invention, such as Figure 6 As shown, the lifting module 210 includes a first slider 211 and a second slider 212. The first slider 211 is connected to the transmission frame 250, and the lifting platform drive device 230 drives the first slider 211 to move horizontally in a first direction through the transmission frame 250. The second slider 212 is disposed above the first slider 211, and a mating inclined surface is constructed between the first slider 211 and the second slider 212. The second slider 212 rises and falls along the mating inclined surface, thereby driving the support plate 240 to rise and fall.

[0034] The first slider 211 is fixedly connected to the transmission frame 250. When the lifting platform drive device 230 is started, its output power is transmitted to the first slider 211 through the transmission frame 250, driving the first slider 211 to move linearly in the first direction. At the same time, the second slider 212 is located directly above the first slider 211. The contact surfaces of the two are provided with a precisely fitted inclined structure, such as a wedge-shaped surface or an inclined guide rail. When the first slider 211 slides horizontally, its inclined surface will push the second slider 212 to slide relative to it along the inclined surface. Since the second slider 212 is guided and constrained in the horizontal direction, it can only move upward or downward in the vertical direction. That is, through the mechanical gain effect of the inclined surface, the second slider 212 is lifted (or lowered) accordingly. The top of the second slider 212 is connected to the support plate 240, so its vertical lifting and lowering movement directly drives the support plate 240 and the support platform 100 above it to lift and lower synchronously.

[0035] Multiple lifting modules 210 share the same transmission frame 250 for drive, ensuring that the lifting modules 210 move at the same height, avoiding the support platform 100 from tilting due to local height differences, thereby ensuring that the surface of the large-size glass substrate is always at the same focal plane in the entire marking area, significantly improving marking accuracy and equipment operation stability.

[0036] In some specific embodiments of the present invention, such as Figure 6 As shown, multiple lifting modules 210 are arranged in multiple rows in the first direction and in multiple columns in the second direction perpendicular to the first direction.

[0037] By arranging the lifting modules 210 in a crisscross pattern on the plane, the entire bottom area of ​​the support platform 100 can be effectively covered, which is especially suitable for glass substrates with ever-increasing dimensions, avoiding platform deformation or substrate warping caused by localized suspension or insufficient support. Simultaneously, all lifting modules 210 are driven and synchronized by the same lifting platform drive device 230, ensuring that the surface of the glass substrate remains highly consistent regardless of its size, maintaining the flatness and consistency of the laser marking focal plane. This row-and-column arrangement not only improves the support rigidity and load distribution balance but also enhances the adaptability of the glass substrate laser marking worktable 1 to glass substrates of different specifications, thereby improving the overall stability and reliability of the glass substrate laser marking worktable 1 while ensuring high marking accuracy.

[0038] In some specific embodiments of the present invention, such as Figure 6 As shown, the lifting module 210 also includes a limiting block 213. The limiting block 213 is installed on the base 220 and located on both sides of the moving path of the first slider 211 and the second slider 212.

[0039] Limiting blocks 213 are fixedly installed on the base 220 and are respectively arranged on the left and right sides of the moving paths of the first slider 211 and the second slider 212, forming a guide channel along the first direction. When the lifting platform drive device 230 is started and pushes the first slider 211 to move horizontally along the first direction through the transmission frame 250, the limiting blocks 213 restrict its lateral movement perpendicular to that direction, ensuring that the first slider 211 can only slide smoothly along a preset straight trajectory. At the same time, although the second slider 212 located above the first slider 211 mainly performs vertical lifting and lowering movements, its bottom contacts the mating inclined surface of the first slider 211. During the relative sliding process of the inclined surfaces, a small horizontal component force may also be generated. At this time, the limiting blocks 213 also play a restraining role on its lateral displacement, preventing the second slider 212 from swaying or jamming. In addition, the limiting blocks 213 are connected to the transmission frame 250 through the support plate to form a rigid closed-loop structure, further enhancing the torsional resistance and structural stability of the overall mechanism. Under the aforementioned synergistic effect, the horizontal movement of the first slider 211 is precisely guided, and the second slider 212 is able to rise and fall vertically along the inclined plane, ultimately driving the support plate 240 to achieve high-precision, wobbly vertical lifting and lowering, effectively ensuring the consistency of the glass substrate surface height and meeting the stringent requirements for the flatness of the laser marking focus surface.

[0040] In some specific embodiments of the present invention, such as Figure 2 and Figure 8As shown, the lifting mechanism 300 includes a lifting drive device 310, a transmission mechanism 320, and a frame 330. The lifting drive device 310 is mounted on the lifting platform 200. The transmission mechanism 320 is connected to the lifting drive device 310. The frame 330 is connected to the transmission mechanism 320. The lifting drive device 310 drives the frame 330 to rise and fall through the transmission mechanism 320. The top of the frame 330 is equipped with multiple lifting rods 331, which pass through the support platform 100 to lift the glass substrate upwards and detach it from the support platform 100.

[0041] For example, after the glass substrate has completed the marking operation, the lifting drive device 310 is activated. This drive device, mounted on the lifting platform 200, transmits power to the frame 330 via a transmission mechanism 320 (which can be a connecting rod, lead screw, or synchronous belt, etc.). Driven by the transmission mechanism 320, the frame 330 moves vertically upwards, and multiple lifting rods 331 on its top rise synchronously. These lifting rods 331 pass through pre-set through holes on the support platform 100, contacting and evenly lifting the glass substrate that has been de-adsorbed from below, causing it to detach from the surface of the support platform 100, creating a sufficient lifting gap. At this time, an external robotic arm can smoothly extend and grasp the glass substrate, completing the unloading operation. Before marking or during resetting, the lifting drive device 310 reverses its movement, driving the frame 330 and lifting rods 331 downwards to return to their original positions, ensuring that the top of the lifting rods 331 is below the surface of the support platform 100, avoiding interference with the placement and adsorption of the glass substrate.

[0042] In some specific embodiments of the present invention, such as Figure 2 and Figure 8 As shown, the transmission mechanism 320 also includes multiple rotating shafts 321, a gear mechanism 322, and multiple lifting seats 323. A lifting drive device 310 is connected to one of the rotating shafts 321 and drives it to rotate. The gear mechanism 322 is connected to the end of the rotating shaft 321 so that the multiple rotating shafts 321 rotate together. The multiple lifting seats 323 are at the same height and each is constructed with a rack 301 extending vertically. The rack 301 meshes with the gear mechanism 322 to drive the multiple lifting seats 323 connected to the rack 301 to rise and fall together.

[0043] For example, the rack 301 on the lifting seat 323 extends along the height direction, and the transmission mechanism 320 has gear mechanisms 322 at both ends, which mesh with the racks 301 on the two adjacent lifting seats 323 respectively. When the lifting drive device 310 is in operation, it is connected to the transmission mechanism 320 and can drive the transmission mechanism 320 to rotate in the horizontal direction. The gear mechanisms 322 at both ends will drive the racks 301 meshing with them to reciprocate in the vertical direction, thereby driving the lifting seat 323 connected to the rack 301 to reciprocate in the vertical direction.

[0044] The lifting drive device 310 of this embodiment only needs to drive one rotating shaft 321 to transmit rotational motion to other rotating shafts 321 through the gear mechanism 322 at the end, so that all rotating shafts 321 are linked and rotate synchronously. The gears on each rotating shaft 321 then mesh with the vertically arranged racks 301 on the corresponding lifting seats 323, converting the rotational motion into linear motion, thereby driving all lifting seats 323 to rise and fall in a coordinated manner at the same height. This design not only significantly improves the synchronization and smoothness of the lifting process, avoiding the risk of glass substrate tilting, uneven force, or breakage caused by asynchronous lifting, but also greatly simplifies the drive system structure and reduces control complexity and manufacturing costs.

[0045] In some specific embodiments of the present invention, such as Figure 2 and Figure 8 As shown, multiple lifting bases 323 are arranged in multiple rows and columns. Adjacent lifting bases 323 in the same row are connected by rotating shafts 321, and at least one column of adjacent lifting bases 323 is connected by rotating shafts 321.

[0046] Adjacent lifting seats 323 within the same row are connected by rotating shafts 321, enabling synchronous movement of all lifting seats within that row. Simultaneously, rotating shafts 321 are also provided in at least one column direction to connect adjacent lifting seats 323, allowing power to be transmitted vertically, thus mechanically coupling the lifting seats 323 in the entire matrix into a unified transmission system. When the lifting drive device 310 drives any rotating shaft 321 to rotate, power is rapidly transmitted to all lifting seats 323 through the gear mechanism and the longitudinally and transversely distributed rotating shafts 321, ensuring synchronous lifting of their racks and pinions. This effectively prevents large-size glass substrates from tilting, warping, or experiencing stress concentration due to local height differences during the lifting process.

[0047] In some specific embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the support platform 100 includes an adsorption stage 110 and a limiting component 120. The adsorption stage 110 is used to adsorb and fix the glass substrate. The limiting component 120 is disposed on the adsorption stage 110 and is used to stop the side of the glass substrate.

[0048] The adsorption stage 110 firmly fixes the glass substrate using vacuum adsorption, preventing displacement due to vibration or airflow disturbance during marking and ensuring the repeatability of the laser's position. The limiting component 120 is located around the adsorption stage 110 to physically stop and guide the glass substrate's sides before adsorption, forcing it into a preset reference position for initial positioning. If the glass substrate is placed skewed or misaligned, even after adsorption and fixation, the actual marking area will deviate from the programmed coordinates, leading to misaligned marking or even scrap. By pre-correcting the position with the limiting component 120 and then locking it with the adsorption stage 110, the tolerance for errors during loading and unloading is significantly improved, ensuring consistency across different batches and operators. Especially for large glass substrates, this structure effectively suppresses initial placement errors, avoiding overall marking deviations caused by the accumulation of small offsets, achieving a high-precision, high-yield laser marking process.

[0049] In some specific embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the limiting assembly 120 includes a connecting plate 121, a push rod 122, a baffle 123, and a limiting drive mechanism 124. The connecting plate 121 is fixed to the output end of the stopping and limiting drive mechanism 124. The push rod 122 is mounted on the connecting plate 121 and reciprocates horizontally under the drive of the stopping and limiting drive mechanism 124. The baffle 123 is located at the front end of the push rod 122 and is used to contact the edge of the glass substrate to achieve limiting. The limiting drive mechanism 124 can be a pneumatic cylinder or an electric cylinder.

[0050] After the glass substrate is placed on the adsorption stage 110 by the robotic arm, the limiting drive mechanism 124 is activated, its output end extends forward, driving the connecting plate 121 fixedly connected to it to move horizontally. The push rod 122 mounted on the connecting plate 121 moves synchronously, pushing the baffle 123 at its front end towards the side of the glass substrate. The baffle 123 eventually contacts the edge of the glass substrate, applying appropriate force to make it adhere tightly to the preset positioning reference surface, thereby achieving precise alignment of the glass substrate. After positioning is completed, the adsorption stage 110 activates its vacuum adsorption function to firmly fix the aligned glass substrate. Subsequently, the limiting drive mechanism 124 reverses its movement, driving the connecting plate 121, push rod 122, and baffle 123 back to their initial positions, providing sufficient space for subsequent marking operations and avoiding structural interference.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A laser marking worktable for glass substrates, characterized in that, include: Support platform, the support platform being adapted to support a glass substrate; A lifting platform is provided at the lower part of the support platform. The lifting platform includes multiple lifting modules, which are distributed in different areas of the support platform. The multiple lifting modules lift and lower synchronously so that the focal plane of the glass substrate on the support platform is at the same height. A lifting mechanism is installed on the lifting platform and located below the support platform. The lifting mechanism is adapted to lift the glass substrate upwards and detach it from the support platform to grip the glass substrate.

2. The glass substrate laser marking worktable according to claim 1, characterized in that, The lifting platform also includes: Base; A lifting platform drive device, wherein the lifting platform drive device is mounted on the base; A support plate is connected to the top of the plurality of lifting modules to support the support platform; A transmission frame is connected to the lifting platform drive device and is also connected to multiple lifting modules to enable the multiple lifting modules to lift and lower synchronously.

3. The glass substrate laser marking worktable according to claim 2, characterized in that, The lifting module includes: A first slider is connected to the transmission frame, and the lifting platform driving device drives the first slider to move horizontally in a first direction through the transmission frame; The second slider is positioned above the first slider, and a mating inclined surface is formed between the first slider and the second slider. The second slider moves up and down along the mating inclined surface, thereby driving the support plate to move up and down.

4. The glass substrate laser marking worktable according to claim 3, characterized in that, The multiple lifting modules are arranged in multiple rows in the first direction and in multiple columns in the second direction perpendicular to the first direction.

5. The glass substrate laser marking worktable according to claim 3, characterized in that, The lifting module also includes: A limiting block is installed on the base and located on both sides of the movement paths of the first slider and the second slider.

6. The glass substrate laser marking worktable according to claim 1, characterized in that, The lifting mechanism includes: A lifting drive device is installed on the lifting platform; A transmission mechanism, which is connected to the lifting drive device. The frame is connected to the transmission mechanism. The lifting drive device drives the frame to rise and fall through the transmission mechanism. The top of the frame is equipped with multiple lifting rods, which pass through the support platform to lift the glass substrate upward and detach it from the support platform.

7. The glass substrate laser marking worktable according to claim 6, characterized in that, The transmission mechanism includes: Multiple rotating shafts, wherein the lifting drive device is connected to one of the rotating shafts and drives it to rotate; A gear mechanism, the gear mechanism being connected to the end of the rotating shaft to enable multiple rotating shafts to rotate together; Multiple lifting seats are provided, all at the same height and each equipped with a rack extending vertically. The rack meshes with the gear mechanism to drive the multiple lifting seats connected to the rack to rise and fall together.

8. The glass substrate laser marking worktable according to claim 7, characterized in that, Multiple lifting bases are arranged in multiple rows and columns, with the rotating shaft connecting adjacent lifting bases in the same row, and the rotating shaft connecting at least one column of adjacent lifting bases.

9. The glass substrate laser marking worktable according to claim 1, characterized in that, The support platform includes: an adsorption stage, which is used to adsorb and fix the glass substrate; A limiting component is disposed on the adsorption stage to stop the side of the glass substrate.

10. The glass substrate laser marking worktable according to claim 9, characterized in that, The limiting component includes: Limit drive mechanism; A connecting plate, which is fixed to the output end of the limiting drive mechanism; A push rod is mounted on the connecting plate and reciprocates in the horizontal direction under the drive of the stop and limit drive mechanism. A baffle is provided at the front end of the push rod and is used to contact the edge of the glass substrate to achieve a limiting action.

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