Automatic small piece flat pasting equipment

Abstract

The invention discloses automatic small piece flat pasting equipment, and relates to the technical field of flat pasting equipment, the equipment comprises a base, a flat pasting mechanism and a CCD detection mechanism, the flat pasting mechanism is composed of a lower cavity seat, an upper cavity seat and a turnover mechanism, the lower cavity seat realizes multidirectional position adjustment through an XYR electric platform, and the upper cavity seat and the lower cavity seat are respectively provided with a liftable placing jig. The magnet is magnetically attracted and fixed through the electromagnet; the overturning mechanism adopts a rotating cylinder to drive an upper cavity seat to overturn and align, the overturning precision is ensured by combining a limiting assembly, and the CCD detection mechanism collects position data of a base material and a membrane material through a moving frame and two groups of cameras and is matched with an XYR platform to automatically adjust and align. The upper jig and the lower jig are provided with rubber blocks, hard damage is avoided in a soft contact mode, attaching uniformity is improved, stroke redundancy is reduced through overturning attaching, long-term stable operation is ensured by combining magnetic attraction fixing and air cylinder driving, and the high-precision flat attaching device is suitable for the high-precision flat attaching requirement of the optical module in the XR field.

Description

Technical Field

[0001] The present invention relates to the technical field of flat pasting equipment, and more specifically, to an automatic small-piece flat pasting equipment. Background Art

[0002] Currently in the XR field, the optical module used to present images adopts a folded optical path, that is, the pancake scheme. This product can greatly reduce the volume and weight of the product, thereby optimizing the user viewing experience. The most common solution is to attach different optical films to the lens to utilize the polarization of light to achieve the desired effect. The method to implement this solution is generally to attach the optical film to a flat glass substrate using a tooling fixture or equipment according to different requirements.

[0003] The method of attaching the optical film to a flat glass substrate is generally called "flat pasting", and when it is used on a lens the size of a human eye, it is called "small-piece flat pasting". The difficulties in the prior art are that it is difficult to ensure: (1) the flatness of the bonding surface; (2) the accuracy after bonding; (3) the optical effect caused by factors other than the film material itself after bonding; (4) the overall effect of the substrate and the film material after bonding, etc. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic small-piece flat pasting equipment. While ensuring the flatness of the bonding surface, this automatic small-piece flat pasting equipment can avoid the offset and tilt caused by the force on the mechanism during the pasting process, ensure the bonding accuracy and the requirements of the bonding position, can achieve quantitative and stable operation, ensure that the optical effect after bonding is not distorted, and ensure the integrity of the overall effect.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic small-piece flat pasting equipment, comprising:

[0007] A base, which is used to install the flat pasting mechanism and the CCD detection mechanism;

[0008] The flat pasting mechanism, which includes a lower cavity seat, an upper cavity seat and a flipping mechanism. The bottom of the lower cavity seat is connected to an XYR electric platform. A lower placing fixture is vertically slidably connected inside the lower cavity seat, and a lifting drive device is connected to the bottom of the lower placing fixture. The flipping mechanism is located on one side of the lower cavity seat and is connected to the upper cavity seat, and can drive the upper cavity seat to flip above the lower cavity seat. An upper placing fixture is vertically slidably connected inside the upper cavity seat. A first electromagnet is arranged on the lower cavity seat, and a second electromagnet is arranged on the upper cavity seat. Both the first electromagnet and the second electromagnet can magnetically fix the upper placing fixture.

[0009] CCD detection mechanism, which includes a moving frame, a longitudinal movement driving device and two groups of CCD cameras. The moving frame is horizontally and slidably connected to the base. The two groups of CCD cameras are respectively installed on the moving frame. The longitudinal movement driving device is connected to the moving frame and can drive the moving frame and the two groups of CCD cameras to move above the upper cavity seat and the lower cavity seat.

[0010] Furthermore, the flipping mechanism includes a fixed frame, a flipping shaft and a rotating cylinder. The fixed frame is installed on the base and is located on one side of the upper cavity seat. The flipping shaft is rotatably installed on the fixed frame. The rotating cylinder is installed on the fixed frame, and the rotating end of the rotating cylinder is connected to the flipping shaft. The upper cavity seat is connected to the rotating shaft.

[0011] Furthermore, a number of vertically arranged first slide rails are provided in the lower cavity seat. A number of first sliders are slidably connected to the first slide rails. The lower placement fixture is connected to the number of first sliders. A number of vertically arranged second slide rails are provided in the upper cavity seat. A number of second sliders are slidably connected to the second slide rails. The upper placement fixture is connected to the number of second sliders.

[0012] Furthermore, the number of first sliders are commonly connected to a lower mounting seat. The lower placement fixture is detachably installed on the lower mounting seat. The number of second sliders are commonly connected to an upper mounting seat. The upper placement fixture is detachably installed on the upper mounting seat.

[0013] Furthermore, the first electromagnet is installed on both sides of the top of the lower cavity seat and can magnetically attract the upper mounting seat. The second electromagnet is installed on one side of the upper cavity seat on the back of the flipping direction and can magnetically attract the upper mounting seat.

[0014] Furthermore, a limiting component is provided between the upper cavity seat and the lower cavity seat. The limiting component includes a proximity sensor and an induction block. The proximity sensor is installed on the lower cavity seat. The induction block is installed on the upper cavity seat. After the upper cavity seat is flipped above the lower cavity seat, the induction block can cooperate with the proximity sensor.

[0015] Furthermore, a first rubber block is provided on the lower placement fixture. A second rubber block is provided on the upper placement fixture. Positioning and placement structures are provided on both the first rubber block and the second rubber block. When the upper placement fixture and the lower placement fixture approach and are flat against each other, the first rubber block and the second rubber block will contact and resist each other.

[0016] Furthermore, a light condensing cover is provided below the CCD camera on the moving frame. A lighting lamp is provided inside the light condensing cover.

[0017] Furthermore, a number of longitudinal movement slide rails are provided on the base. A number of longitudinal movement sliders are provided at the bottom of the moving frame. The longitudinal movement sliders are slidably connected to the longitudinal movement slide rails.

[0018] Furthermore, both the lifting drive device and the longitudinal movement drive device are cylinders.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. Before laminating, position data is collected by a CCD camera, and then position adjustment is performed through an XYR electric platform to achieve control of the lamination accuracy.

[0021] 2. Compared with other "straight up and down" lamination methods, this design uses a flipping lamination method to reduce the extra travel given up due to CCD alignment, so as to achieve stable operation and ensure its repeatability.

[0022] 3. The magnetic adsorption method is used for fixation. Before and after flipping, the upper placement fixture can be fixed to realize the fixation of the positions of the film material and the substrate. At the same time, rubber blocks are provided to achieve non-rigid lamination in a soft-to-soft manner, ensuring the overall effect after lamination, avoiding damage problems caused by hard lamination due to position deviation of the flip cover, and avoiding damage to the substrate or film material caused by hard contact, while enhancing the lamination uniformity.

[0023] 4. After the magnetic adsorption is opened, the cylinder of the lifting drive device jacks up for the final complete lamination. During this process, the cylinder force only acts between the upper and lower cavity seats, avoiding position variation caused by long-term and frequent stress on the XYR electric platform and the flip, so as to achieve a long-term stable lamination effect. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, where:

[0025] Figure 1 is a structural schematic diagram of an automatic small-piece flat lamination device Figure 1 ;

[0026] Figure 2 is a structural schematic diagram of an automatic small-piece flat lamination device Figure 2 ;

[0027] Figure 3 is Figure 2 the sectional view taken along A-A in

[0028] Figure 4 is a structural schematic diagram of an automatic small-piece flat lamination device Figure 3 .

[0029] The labels in the figure are: 1, base; 2, XYR electric platform; 3, lower cavity seat; 4, upper cavity seat; 5, moving frame; 6, CCD camera; 7, longitudinal movement driving device; 8, light condensing cover; 9, fixing frame; 10, turning shaft; 11, rotating cylinder; 12, lower mounting seat; 13, upper mounting seat; 14, first electromagnet; 15, second electromagnet; 16, lifting driving device; 17, first slider; 18, first slide rail; 19, longitudinal movement slide rail; 20, longitudinal movement slider; 21, proximity sensor; 22, induction block; 23, lower placement jig; 24, first rubber block; 25, upper placement jig; 26, second rubber block. Detailed implementation manner

[0030] In the description of the present invention, it should be noted that for orientation terms, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the 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 should not be construed as limiting the specific protection scope of the present invention.

[0031] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0032] An automatic small-piece flat pasting device, as Figures 1-4 shown, includes:

[0033] A base 1, which is used to install a flat pasting mechanism and a CCD detection mechanism;

[0034] Flat attachment mechanism, which includes a lower cavity seat 3, an upper cavity seat 4 and a flipping mechanism. The bottom of the lower cavity seat 3 is connected to an XYR electric platform 2. A lower placement fixture 23 is vertically slidably connected inside the lower cavity seat 3, and a lifting drive device 16 is connected to the bottom of the lower placement fixture 23. The flipping mechanism is located on one side of the lower cavity seat 3 and is connected to the upper cavity seat 4, and can drive the upper cavity seat 4 to flip above the lower cavity seat 3. An upper placement fixture 25 is vertically slidably connected inside the upper cavity seat 4. A first electromagnet 14 is arranged on the lower cavity seat 3, and a second electromagnet 15 is arranged on the upper cavity seat 4. Both the first electromagnet 14 and the second electromagnet 15 can magnetically fix the upper placement fixture 25.

[0035] CCD detection mechanism, which includes a moving frame 5, a longitudinal movement drive device 7 and two groups of CCD cameras 6. The moving frame 5 is horizontally slidably connected to the base 1. The two groups of CCD cameras 6 are respectively installed on the moving frame 5. The longitudinal movement drive device 7 is connected to the moving frame 5 and can drive the moving frame 5 and the two groups of CCD cameras 6 to move above the upper cavity seat 4 and the lower cavity seat 3.

[0036] Preferably, the flipping mechanism includes a fixed frame 9, a flipping shaft 10 and a rotary cylinder 11. The fixed frame 9 is installed on the base 1 and is located on one side of the upper cavity seat 4. The flipping shaft 10 is rotatably installed on the fixed frame 9. The rotary cylinder 11 is installed on the fixed frame 9, and the rotating end of the rotary cylinder 11 is connected to the flipping shaft 10. The upper cavity seat 4 is connected to the rotating shaft 10.

[0037] Specifically, the rotary cylinder 11 drives the flipping shaft 10 to rotate, driving the upper cavity seat 4 to flip above the lower cavity seat 3, realizing the precise alignment of the upper and lower fixtures by flipping. The overall structure of this structure is simple and compact, with fast action and high control precision; the rotary cylinder 11 provides stable power output to ensure the smooth and reliable flipping process.

[0038] Preferably, a number of vertically arranged first slide rails 18 are arranged inside the lower cavity seat 3. First sliders 17 are slidably connected to a number of first slide rails 18. The lower placement fixture 23 is connected to a number of first sliders 17. A number of vertically arranged second slide rails are arranged inside the upper cavity seat 4. Second sliders are slidably connected to a number of second slide rails. The upper placement fixture 25 is connected to a number of second sliders.

[0039] Specifically, by setting the cooperation of the slide rails and the sliders, the vertical sliding of the upper and lower placement fixtures is realized, improving the smoothness and positioning accuracy of the fixture movement, and reducing the influence of mechanical vibration on the flat attachment process.

[0040] Preferably, a plurality of first sliders 17 are commonly connected to a lower mounting base 12, and the lower placement fixture 23 is detachably mounted on the lower mounting base 12. A plurality of second sliders are commonly connected to an upper mounting base 13, and the upper placement fixture 25 is detachably mounted on the upper mounting base 13;

[0041] Specifically, by providing a mounting base, the placement fixture can be detachably mounted on the mounting base, enabling the replacement of multiple specifications of fixtures to adapt to substrates and film materials of different sizes, and greatly improving the versatility of the equipment.

[0042] Preferably, the first electromagnet 14 is mounted on both sides of the top of the lower cavity base 3 and can magnetically attract the upper mounting base 13. The second electromagnet 15 is mounted on one side of the upper cavity base 4 on the back of the flipping direction and can magnetically attract the upper mounting base 13;

[0043] Specifically, after the electromagnet is energized, it generates a magnetic force to attract the upper mounting base 13 and automatically releases after power-off. It has a firm fixation and convenient operation, avoiding the wear that may be caused by traditional mechanical clamping, and has a simple structure, which is convenient for spatial layout.

[0044] Preferably, a limiting component is provided between the upper cavity base 4 and the lower cavity base 3. The limiting component includes a proximity sensor 21 and an induction block 22. The proximity sensor 21 is mounted on the lower cavity base 3, and the induction block 22 is mounted on the upper cavity base 4. After the upper cavity base 4 is flipped above the lower cavity base 3, the induction block 22 can cooperate with the proximity sensor 21;

[0045] Specifically, after the upper cavity base 4 is flipped in place, the induction block 22 triggers the proximity sensor 21 to feedback a position signal, ensuring accurate flipping position, preventing overshoot or deviation, and improving the safety and reliability of the equipment.

[0046] Preferably, a first rubber block 24 is provided on the lower placement fixture 23, and a second rubber block 26 is provided on the upper placement fixture 25. Positioning and placement structures are provided on both the first rubber block 24 and the second rubber block 26. When the upper placement fixture 25 and the lower placement fixture 23 approach and are flatly attached, the first rubber block 24 and the second rubber block 26 will contact and abut against each other;

[0047] Specifically, by providing rubber blocks on the upper and lower placement fixtures, the glass substrate and the optical film material are placed on the rubber blocks to buffer the flat attachment pressure, realizing a non-rigid attachment in a soft-to-soft manner, ensuring the overall effect after attachment, avoiding problems such as damage caused by hard contact between hard objects due to deviation of the flip cover position, and avoiding damage to the substrate or film material caused by hard contact, while enhancing the attachment uniformity.

[0048] Preferably, the first rubber block 24 is made of soft rubber, and the second rubber block 26 is made of hard rubber, so that the soft rubber is adapted to the optical film material and the hard rubber is adapted to the glass substrate.

[0049] Preferably, a condenser hood 8 is arranged below the CCD camera 6 on the moving frame 5, and a lighting lamp is arranged in the condenser hood 8. The condenser hood 8 focuses the light source, and the lighting lamp provides uniform light, optimizing the imaging environment of the CCD camera 6, reducing the reflection interference, and improving the detection accuracy.

[0050] Preferably, a plurality of longitudinal movement slide rails 19 are arranged on the base 1, and a plurality of longitudinal movement sliders 20 are arranged at the bottom of the moving frame 5. The longitudinal movement sliders 20 are slidably connected to the longitudinal movement slide rails 19. The horizontal sliding of the moving frame 5 is realized through the cooperation of the slide rail and the slider, ensuring the smoothness and positioning accuracy of the movement of the CCD camera 6 and ensuring the comprehensive detection coverage range.

[0051] Preferably, both the lifting drive device 16 and the longitudinal movement drive device 7 are cylinders. The linear motion of the cylinders is used to drive the jig to lift or the moving frame to move horizontally. At the same time, using cylinders to drive has low cost, fast response, and simple maintenance, and is suitable for high-frequency repetitive action scenarios.

[0052] Working process:

[0053] 1. Product placement: Place the optical film on the first rubber block 24 of the lower placement jig 23, fix the glass substrate on the second rubber block 26 of the upper placement jig 25, and then energize the second electromagnet 15 to magnetically fix the upper placement jig 25.

[0054] 2. Positioning adjustment: The moving frame 5 is driven to move by the longitudinal movement drive device 7, so that the two CCD cameras 6 move above the upper placement jig 25 and the lower placement jig 23, and image acquisition is performed on the positions of the glass substrate and the optical film. Then, according to the collected data, the lower cavity seat 3 is automatically adjusted in position by the XYR electric platform 2 to ensure accurate alignment after flipping.

[0055] 3. Flipping and fixing: The rotary cylinder 11 is started to drive the upper cavity seat 4 to flip until it flips above the lower cavity seat 3. After the flipping is completed, the second electromagnet 15 is de-energized, and at the same time, the first electromagnet 14 is energized, and the upper placement jig 25 vertically drops and is magnetically fixed relative to the upper cavity seat 4.

[0056] 4. Lamination: The lifting drive device 16 is started to drive the first placement jig to rise vertically, so that the glass substrate and the optical film are laminated to complete the flat lamination.

[0057] Advantages:

[0058] 1. Before lamination, position data is collected by the CCD camera 6, and then position adjustment is performed by the XYR electric platform 2 to achieve control of the lamination accuracy.

[0059] 2. Compared with other "up and down" fitting methods, this design uses a flipping fitting method to reduce the extra travel given up due to CCD alignment, so as to achieve stable operation and ensure its repeatability effect;

[0060] 3. The magnetic attraction method is adopted for fixation. Before and after flipping, the placement fixture 25 can be fixed to achieve the fixation of the positions of the film material and the substrate. At the same time, the rubber blocks are arranged to achieve non-rigid fitting in a soft-to-soft manner, ensuring the overall effect after fitting, avoiding damage problems caused by hard contact due to position deviation of the flip cover, and avoiding damage to the substrate or film material caused by hard contact. At the same time, the fitting uniformity is enhanced;

[0061] 4. After the magnetic attraction is opened, the cylinder of the lifting drive device 16 jacks up for the final complete fitting. During this process, the cylinder force only acts between the upper and lower cavity seats, avoiding the position variation caused by the long-term and frequent force on the XYR electric platform 2 and the flip, so as to achieve a long-term stable fitting effect.

[0062] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. An automatic small-piece flat pasting device, characterized in that, Including: A base for mounting a flat pasting mechanism and a CCD detection mechanism; The flat pasting mechanism includes a lower cavity seat, an upper cavity seat and a flipping mechanism. The bottom of the lower cavity seat is connected to an XYR electric platform. A lower placement fixture is vertically slidably connected inside the lower cavity seat, and a lifting drive device is connected to the bottom of the lower placement fixture. The flipping mechanism is located on one side of the lower cavity seat and is connected to the upper cavity seat, and can drive the upper cavity seat to flip above the lower cavity seat. An upper placement fixture is vertically slidably connected inside the upper cavity seat. A first electromagnet is arranged on the lower cavity seat, and a second electromagnet is arranged on the upper cavity seat. Both the first electromagnet and the second electromagnet can magnetically fix the upper placement fixture. The CCD detection mechanism includes a moving frame, a longitudinal movement drive device and two groups of CCD cameras. The moving frame is horizontally slidably connected to the base, and the two groups of CCD cameras are respectively installed on the moving frame. The longitudinal movement drive device is connected to the moving frame and can drive the moving frame and the two groups of CCD cameras to move above the upper cavity seat and the lower cavity seat.

2. The automatic small-piece flat pasting device according to claim 1, characterized in that: The flipping mechanism includes a fixed frame, a flipping shaft and a rotating cylinder. The fixed frame is installed on the base and is located on one side of the upper cavity seat. The flipping shaft is rotatably installed on the fixed frame. The rotating cylinder is installed on the fixed frame, and the rotating end of the rotating cylinder is connected to the flipping shaft. The upper cavity seat is connected to the rotating shaft.

3. An automatic small-piece flat pasting device according to claim 1, characterized in that: A number of vertically arranged first slide rails are arranged inside the lower cavity seat, and first sliders are slidably connected to the number of first slide rails. The lower placement fixture is connected to the number of first sliders. A number of vertically arranged second slide rails are arranged inside the upper cavity seat, and second sliders are slidably connected to the number of second slide rails. The upper placement fixture is connected to the number of second sliders.

4. An automatic small-piece flat pasting device according to claim 3, characterized in that: The number of first sliders are jointly connected to a lower mounting seat, and the lower placement fixture is detachably installed on the lower mounting seat. The number of second sliders are jointly connected to an upper mounting seat, and the upper placement fixture is detachably installed on the upper mounting seat.

5. The automatic small-piece flat pasting device according to claim 4, characterized in that: The first electromagnet is installed on both sides of the top of the lower cavity seat and can magnetically attract the upper mounting seat. The second electromagnet is installed on one side of the upper cavity seat on the back of the flipping direction and can magnetically attract the upper mounting seat.

6. The automatic small-piece flat pasting device according to claim 1, characterized in that: A limiting component is arranged between the upper cavity seat and the lower cavity seat. The limiting component includes a proximity sensor and an induction block. The proximity sensor is installed on the lower cavity seat, and the induction block is installed on the upper cavity seat. After the upper cavity seat is flipped above the lower cavity seat, the induction block can cooperate with the proximity sensor.

7. An automatic small-piece flat pasting device according to claim 1, characterized in that: A first rubber block is arranged on the lower placement fixture, and a second rubber block is arranged on the upper placement fixture. Positioning placement structures are arranged on both the first rubber block and the second rubber block. When the upper placement fixture and the lower placement fixture approach for flat pasting, the first rubber block and the second rubber block will contact and abut against each other.

8. An automatic small-piece flat pasting device according to claim 1, characterized in that: A light condensing cover is arranged below the CCD camera on the moving frame, and a lighting lamp is arranged inside the light condensing cover.

9. The automatic small-piece flat pasting device according to claim 1, characterized in that: A number of longitudinal movement slide rails are arranged on the base, and a number of longitudinal movement sliders are arranged at the bottom of the moving frame. The longitudinal movement sliders are slidably connected to the longitudinal movement slide rails.

10. The automatic small-piece flat pasting device according to claim 1, characterized in that: Both the lifting drive device and the longitudinal movement drive device are cylinders.

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