Glass turnover mechanism

Abstract

The utility model relates to the technical field of glass processing, in particular to a glass turnover mechanism which comprises a fixed material table, a turnover suction cup, a turnover driver, a lifting driver and a displacement driver. According to the utility model, through the cooperation of the fixed material platform, the overturning sucking disc, the overturning driver, the lifting driver and the displacement driver, the overturning efficiency is improved. No mechanical clamping exists in the whole negative pressure adsorption process of the overturning suction cup, and meanwhile the problems that a single-shaft mechanical arm is prone to causing sliding deviation of a glass sheet in the overturning process to cause cutting positioning errors and local stress easily causes microcracks to cause product yield reduction are solved.

Description

Technical Field

[0001] This utility model relates to the field of glass processing technology, and in particular to a glass flipping mechanism. Background Technology

[0002] In the field of glass deep processing, especially in the manufacturing of precision components such as electronic display glass and photovoltaic glass, double-sided cutting has become an essential process for improving product functionality. Traditional glass flipping methods mostly rely on manual flipping or single-axis robotic arm clamping, which presents the following technical bottlenecks:

[0003] In existing technologies, manual flipping is inefficient and poses safety hazards, while single-axis robotic arm clamping can easily cause the glass sheet to slip and shift during the flipping process, resulting in cutting and positioning errors. Furthermore, the localized stress generated by conventional clamping mechanisms can easily induce microcracks, leading to a decrease in product yield. Therefore, it is necessary to improve these technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a glass flipping mechanism. Through the coordinated use of a fixed material platform, a flipping suction cup, a flipping driver, a lifting driver, and a displacement driver, the flipping efficiency is improved. The flipping suction cup utilizes negative pressure adsorption without mechanical clamping throughout the process. This also solves the problems of single-axis robotic arm clamping, which can easily cause the glass sheet to slip and shift during flipping, resulting in cutting and positioning errors, and the problem of localized stress easily inducing micro-cracks, leading to a decrease in product yield.

[0005] To achieve the above objectives, the present invention provides a glass flipping mechanism, comprising a fixed material platform, a flipping suction cup, a flipping driver, a lifting driver, and a displacement driver.

[0006] The fixed platform is used to fix the glass sheet;

[0007] The flip-up suction cup is used to adsorb the glass sheet;

[0008] The flip driver is used to drive the flip suction cup to flip;

[0009] The lifting driver is connected between the tilting driver and the displacement driver, and is used to drive the tilting driver to lift up and down;

[0010] The displacement driver is used to drive the lifting driver to displacement.

[0011] Preferably, the fixed material platform includes a support leg and a fixed plate, and the fixed plate is fixed to the support leg.

[0012] Preferably, the flipping suction cup includes a flipping frame and a suction plate, wherein the suction plate is fixed to the flipping frame.

[0013] Preferably, both the fixed plate and the suction plate are provided with vacuum adsorption tanks, and the vacuum adsorption tanks include a central adsorption tank, an edge adsorption tank and an outer edge adsorption tank arranged sequentially from the inside to the outside.

[0014] Preferably, the lifting drive includes a displacement seat, a lifting frame, a guide shaft, an upper tilting slide, a lower tilting slide, and a lifting actuator;

[0015] The displacement seat is connected to the displacement driver;

[0016] The lifting frame is slidably connected to the displacement seat via the guide shaft;

[0017] The upper inclined slide is slidably connected to the displacement seat;

[0018] The lower inclined slide is fixed to the lifting frame and slidably connected to the upper inclined slide.

[0019] The lifting actuator is fixed to the displacement seat and is used to drive the upper inclined slide to slide along both the displacement seat and the lower inclined slide.

[0020] Preferably, the upper inclined slide is provided with a first plane and a first inclined surface, and the lower inclined slide is provided with a second plane and a second inclined surface;

[0021] The first plane is slidably connected to the displacement seat;

[0022] The first inclined surface and the second inclined surface are slidably connected;

[0023] The second plane is fixedly connected to the top of the lifting frame.

[0024] Preferably, the flip drive is fixed to the lifting frame, and the flip drive is provided with a fixing clip, which is connected to the flip suction cup.

[0025] Preferably, the displacement driver is provided with a transmission block, which is connected to the lifting driver.

[0026] The beneficial effects of this invention are as follows: By combining a fixed material platform, a flipping suction cup, a flipping driver, a lifting driver, and a displacement driver, this invention improves flipping efficiency. The flipping suction cup utilizes negative pressure adsorption without mechanical clamping throughout the process. This solves the problems of single-axis robotic arms causing glass sheets to slip and shift during flipping, resulting in cutting and positioning errors, and localized stress easily inducing micro-cracks, leading to a decrease in product yield. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the fixed material platform and the flipping suction cup of this utility model.

[0029] Figure 3 This is a schematic diagram of the structure of the flip drive, lifting drive and displacement drive of this utility model.

[0030] The reference numerals in the figures include:

[0031] 1. Fixed material platform; 11. Support legs; 12. Fixed plate;

[0032] 2. Tilting suction cup; 21. Tilting frame; 22. Suction tray; 23. Vacuum adsorption tank; 231. Central adsorption tank; 232. Edge adsorption tank; 233. Outer edge adsorption tank;

[0033] 3. Flip drive; 31. Fixing clip;

[0034] 4. Lifting driver; 41. Displacement seat; 42. Lifting frame; 43. Guide shaft; 44. Upper inclined slide; 441. First plane; 442. First inclined plane; 45. Lower inclined slide; 451. Second plane; 452. Second inclined plane; 46. Lifting actuator;

[0035] 5. Displacement actuator; 51. Transmission block. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figures 1 to 3 As shown, a glass flipping mechanism of this utility model includes a fixed material platform 1, a flipping suction cup 2, a flipping driver 3, a lifting driver 4, and a displacement driver 5.

[0038] The fixed platform 1 is used to fix the glass sheet;

[0039] The flip-up suction cup 2 is used to adsorb the glass sheet;

[0040] The flip driver 3 is used to drive the flip suction cup 2 to flip;

[0041] The lifting driver 4 is connected between the tilting driver 3 and the displacement driver 5, and is used to drive the tilting driver 3 to lift up and down;

[0042] The displacement driver 5 is used to drive the lifting driver 4 to move.

[0043] Specifically, a fixed bearing platform is set up as the receiving reference surface for glass sheet loading, forming a dual-station structure with the flipping suction cup 2, ensuring accurate positioning after the glass sheet is flipped, avoiding manual secondary adjustment, and improving the continuous operation efficiency of double-sided cutting.

[0044] The flip suction cup 2 uses negative pressure adsorption to replace the traditional mechanical grippers, eliminating clamping stress and preventing micro-cracks or coating damage on the glass surface, thus improving yield. It is especially suitable for flipping ultra-thin glass (<0.5mm).

[0045] The flipping driver 3 drives the flipping suction cup 2 to perform a 180° flip, precisely controlling the flipping angle and avoiding the problem of cutting alignment failure caused by inertial displacement of the glass sheet.

[0046] A lifting driver 4 is set between the flip driver 3 and the displacement driver 5 to realize the Z-axis height adjustment of the glass sheet before and after flipping, so as to avoid collision with the fixed material table 1 and adapt to the processing requirements of glass sheets of different thicknesses.

[0047] The displacement driver 5 drives the lifting driver 4 to move, so that the flip suction cup 2 and the flip driver 3 move with the displacement of the lifting driver 4.

[0048] In use, the fixed material platform 1 and the flipping suction cup 2 are arranged side by side. The fixed material platform 1 fixes the glass sheet to achieve the feeding of the glass sheet. The lifting driver 4 drives the flipping suction cup 2 and the flipping driver 3 to rise together to the clearance area between the fixed material platform 1 and the flipping suction cup 2. The flipping driver 3 drives the flipping suction cup 2 to rotate 180°. The displacement driver 5 drives the flipping suction cup 2, the flipping driver 3 and the lifting driver 4 to move above the fixed material platform 1 after rotating 180°. The lifting driver 4 drives the flipping suction cup 2 and the flipping driver 3 to descend together. The flipping suction cup 2 approaches the fixed material platform 1 and picks up the glass sheet placed on the fixed material platform 1. The displacement driver 5, the lifting driver 4 and the flipping driver 3 drive the flipping suction cup 2 back to the initial position to wait for the next piece of glass to be fed, thus realizing the flipping of the glass sheet.

[0049] By using a fixed material platform 1, a flipping suction cup 2, a flipping driver 3, a lifting driver 4, and a displacement driver 5 in combination, the flipping efficiency is improved. The flipping suction cup 2 uses negative pressure adsorption without mechanical clamping throughout the process, which solves the problems of glass sheet slippage and displacement during flipping caused by single-axis robotic arm clamping, resulting in cutting and positioning errors, as well as the problem of microcracks caused by local stress, leading to a decrease in product yield.

[0050] In actual use, there are two sets of flip drive 3, lifting drive 4 and displacement drive 5. By having two sets of flip drive 3, lifting drive 4 and displacement drive 5 work at the same time, the glass flipping operation is more stable.

[0051] like Figure 2 As shown, the fixed material platform 1 in this embodiment includes a support leg 11 and a fixed plate 12, and the fixed plate 12 is fixed to the support leg 11.

[0052] Specifically, the support leg 11 uses a rigid column structure (such as aluminum alloy profile or steel adjusting screw) to connect the fixed plate 12 to the equipment base. The length of the support leg 11 can be adjusted by a threaded knob or pneumatic locking mechanism, so that the fixed material platform 1 can adapt to the bearing requirements of glass sheets of different thicknesses, solving the problem of glass collision caused by height mismatch in traditional fixed platforms. Anti-slip rubber pads are added to the bottom of the support leg 11 to reduce the impact vibration when the flip suction cup 2 releases the glass.

[0053] Mechanical positioning guards (chamfer ≤ 0.5 mm) are provided on the surface of the fixed plate 12 to eliminate micro-displacement caused by vibration of the cutting equipment. The gap between the four guards of the fixed plate 12 and the edge of the glass sheet is ≤ 0.2 mm to prevent horizontal displacement of the glass sheet during loading and release.

[0054] like Figure 2 As shown, the flipping suction cup 2 in this embodiment includes a flipping frame 21 and a suction plate 22, with the suction plate 22 fixed to the flipping frame 21.

[0055] Specifically, the tilting frame 21 uses a lightweight, high-rigidity frame (such as aluminum alloy or carbon fiber) rigidly connected to the output shaft of the tilting drive 3. The truss structure design of the frame evenly distributes the tilting torque, avoiding the torsional deformation of the glass sheet caused by localized stress, and solving the stress concentration problem of single-axis robotic arms during tilting in the prior art.

[0056] A flexible sealing edge (made of silicone) is provided on the surface of the suction tray 22 to facilitate the positioning of the glass sheet on the surface of the suction tray 22.

[0057] like Figure 2 As shown, both the fixed disk 12 and the suction disk 22 in this embodiment are provided with vacuum adsorption grooves 23. The vacuum adsorption grooves 23 include a central adsorption groove 231, an edge adsorption groove 232 and an outer edge adsorption groove 233 arranged sequentially from the inside to the outside.

[0058] Specifically, a vacuum adsorption structure is simultaneously configured on the fixed plate 12 and the suction plate 22 to form a bidirectional negative pressure fixing system. The fixed plate 12 initiates adsorption the instant the glass is dropped, seamlessly connecting with the release action of the suction plate 22, eliminating the risk of displacement caused by the free fall of the glass sheet and improving positioning accuracy. The symmetrical distribution of adsorption force on both sides counteracts the bending stress generated by the weight of the glass sheet, preventing the thin glass (<0.5mm) from breaking during the release or receiving process.

[0059] The central adsorption tank 231 is an annular or radial channel located at the geometric center of the adsorption area, connected to the main vacuum pipeline (negative pressure value ≥ 0.1 MPa). A strong negative pressure is preferentially formed in the central region, completing the initial gripping / fixation of the glass sheet within 0.3 seconds, improving adsorption efficiency by 50% compared to traditional single-zone adsorption. The high negative pressure zone in the center resists the inertial force of the glass sheet's rotation, preventing the glass from detaching from the adsorption surface due to centrifugal force when the suction plate 22 rotates.

[0060] The edge adsorption groove 232 surrounds the central adsorption groove 231 with a dense grid-like channel, and the negative pressure value is controlled in stages (0.06-0.08MPa). It is used to specifically adsorb the glass edge area (stress-sensitive area) and eliminate the edge warping caused by traditional single-point adsorption.

[0061] The outer edge adsorption groove 233 is a continuous closed channel on the outermost side of the adsorption area, ensuring the adhesion of large-size glass (>3m) to the surrounding area. 2 Adsorption stability.

[0062] The central adsorption tank 231, the edge adsorption tank 232, and the outer edge adsorption tank 233 adopt a three-level gradient negative pressure design, with the negative pressure of the central adsorption tank 231 > the negative pressure of the edge adsorption tank 232 > the negative pressure of the outer edge adsorption tank 233, so that the adsorption force distribution matches the stress field of the glass. This achieves the effect of rapid grasping and resistance to inertial forces by the high negative pressure at the center, suppression of local deformation by the medium negative pressure at the edge, and maintenance of airtightness by the low negative pressure at the outer edge.

[0063] like Figure 3 As shown, the lifting drive 4 in this embodiment includes a displacement seat 41, a lifting frame 42, a guide shaft 43, an upper tilting slide 44, a lower tilting slide 45, and a lifting actuator 46.

[0064] The displacement seat 41 is connected to the displacement driver 5;

[0065] The flipping driver 3 is fixed to the lifting frame 42, and the lifting frame 42 is slidably connected to the displacement seat 41 through the guide shaft 43;

[0066] The upper inclined slide 44 is slidably connected to the displacement seat 41;

[0067] The lower inclined slide 45 is fixed to the lifting frame 42 and is slidably connected to the upper inclined slide 44;

[0068] The lifting actuator 46 is fixed to the displacement seat 41 and is used to drive the upper inclined slide 44 to slide along both the displacement seat 41 and the lower inclined slide 45.

[0069] Specifically, the displacement seat 41 serves as a horizontal moving base and is rigidly connected to the displacement actuator 5. The integrated cast structure bears the overall weight of the tilting mechanism, reducing vibration amplitude during horizontal movement and solving the positioning drift problem caused by frame deformation in traditional lifting mechanisms.

[0070] The lifting frame 42 forms a vertical sliding pair with the displacement seat 41 through the guide shaft 43, and adopts a lightweight hollow design.

[0071] The number of guide shafts 43 is four hard chrome-plated linear shafts. The guide shafts 43 cooperate with linear bearings to form a vertical sliding guide system.

[0072] The upper inclined slide 44 and the displacement seat 41 are slidably connected by a dovetail groove, and the lower inclined slide 45 is fixed to the lifting frame 42 and slidably connected to the upper inclined slide 44 by an inclined guide rail.

[0073] The lifting actuator 46 drives the inclined slide 44 to move horizontally via a lead screw and nut, which is then converted into vertical movement of the lifting frame 42 via an inclined guide rail. The tilting driver 3 is fixed to the lifting frame 42, and the lifting driver 4 is connected between the tilting driver 3 and the displacement driver 5, facilitating the lifting driver 4 to drive the tilting driver 3 and the tilting suction cup 2 to move up and down. The lifting actuator 46 is either a servo motor or a stepper motor.

[0074] like Figure 3 As shown, in this embodiment, the upper inclined slide 44 is provided with a first plane 441 and a first inclined surface 442, and the lower inclined slide 45 is provided with a second plane 451 and a second inclined surface 452.

[0075] The first plane 441 is slidably connected to the displacement seat 41;

[0076] The first inclined surface 442 and the second inclined surface 452 are slidably connected;

[0077] The second plane 451 is fixedly connected to the top of the lifting frame 42.

[0078] Specifically, a precision linear guide, such as a roller guide or a dovetail groove, is set in the horizontal direction through the first plane 441, so that the driving force of the lifting actuator 46 can be effectively transmitted, thereby improving the horizontal movement accuracy.

[0079] The first inclined surface 442 and the second inclined surface 452 are slidably connected, so that the lower inclined slide 45 and the upper inclined slide 44 are slidably connected, and the horizontal movement is converted into vertical lifting through the contact of the inclined surfaces.

[0080] The second plane 451 is rigidly connected to the lifting frame 42 by bolts, and zero-gap assembly is achieved by combining the plane positioning pin. The second plane 451 is in full contact with the top of the lifting frame 42, so that the downward tilting slide 45 is fixed to the lifting frame 42.

[0081] like Figure 3 As shown, in this embodiment, the flip drive 3 is fixed to the lifting frame 42, and the flip drive 3 is provided with a fixing clip 31, which is connected to the flip suction cup 2.

[0082] Specifically, the flip drive 3 (such as a servo motor or rotary cylinder) is rigidly connected to the side wall of the lifting frame 42 by means of a flange or high-strength bolts, so as to achieve coaxial positioning of the power output shaft and the flip suction cup 2 and reduce the flip angle error.

[0083] The rotating suction cup 2 is connected to the driver output shaft via the fixing clip 31. This facilitates the replacement of rotating suction cups 2 with different specifications. Preferably, the fixing clip 31 is provided with a fixing groove, which cooperates with the fixing bolt to connect the rotating suction cup 2 to the driver output shaft.

[0084] like Figure 3 As shown, the displacement driver 5 in this embodiment is provided with a transmission block 51, which is connected to the lifting driver 4.

[0085] The transmission block 51, serving as a power transmission intermediary, is made of high-rigidity materials (such as 40CrNiMoA steel, SKD11 mold steel, or 17-4PH stainless steel). It is mechanically coupled to the displacement actuator 5 and the displacement seat 41 of the lifting actuator 4 via a T-slot structure. Pre-tightening of the T-slot mating surfaces eliminates assembly gaps and improves the repeatability and positioning accuracy of horizontal movement. The displacement actuator 5 is either a linear motor direct-drive mechanism or a synchronous belt linear motion module.

[0086] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A glass flipping mechanism, characterized in that, It includes a fixed material table (1), a flip suction cup (2), a flip driver (3), a lifting driver (4), and a displacement driver (5); The fixed platform (1) is used to fix the glass sheet; The flipping suction cup (2) is used to adsorb the glass sheet; The flip driver (3) is used to drive the flip suction cup (2) to flip; The lifting driver (4) is connected between the tilting driver (3) and the displacement driver (5), and is used to drive the tilting driver (3) to lift. The displacement driver (5) is used to drive the lifting driver (4) to displacement.

2. The glass flipping mechanism according to claim 1, characterized in that, The fixed material platform (1) includes a support foot (11) and a fixed plate (12), and the fixed plate (12) is fixed on the support foot (11).

3. The glass flipping mechanism according to claim 2, characterized in that, The flipping suction cup (2) includes a flipping frame (21) and a suction plate (22), wherein the suction plate (22) is fixed to the flipping frame (21).

4. A glass flipping mechanism according to claim 3, characterized in that, Both the fixed disk (12) and the suction disk (22) are provided with vacuum adsorption tanks (23), which include a central adsorption tank (231), an edge adsorption tank (232) and an outer edge adsorption tank (233) arranged sequentially from the inside to the outside.

5. A glass flipping mechanism according to claim 1, characterized in that, The lifting drive (4) includes a displacement seat (41), a lifting frame (42), a guide shaft (43), an upper tilting slide (44), a lower tilting slide (45), and a lifting actuator (46); The displacement seat (41) is connected to the displacement driver (5); The lifting frame (42) is slidably connected to the displacement seat (41) via the guide shaft (43); The upper inclined slide (44) is slidably connected to the displacement seat (41); The lower inclined slide (45) is fixed to the lifting frame (42) and slidably connected to the upper inclined slide (44); The lifting actuator (46) is fixed to the displacement seat (41) and is used to drive the upper inclined slide (44) to slide along the displacement seat (41) and the lower inclined slide (45) at the same time.

6. A glass flipping mechanism according to claim 5, characterized in that, The upper inclined slide (44) is provided with a first plane (441) and a first inclined surface (442), and the lower inclined slide (45) is provided with a second plane (451) and a second inclined surface (452); The first plane (441) is slidably connected to the displacement seat (41); The first inclined surface (442) and the second inclined surface (452) are slidably connected; The second plane (451) is fixedly connected to the top of the lifting frame (42).

7. A glass flipping mechanism according to claim 5, characterized in that, The flip drive (3) is fixed to the lifting frame (42), and the flip drive (3) is provided with a fixing clip (31), which is connected to the flip suction cup (2).

8. A glass flipping mechanism according to claim 1, characterized in that, The displacement driver (5) is provided with a transmission block (51), which is connected to the lifting driver (4).

Images