Optical material welding device

Abstract

The utility model discloses an optical material welding device. The optical material welding device comprises a console; a carrying table is arranged on the control table; at least two layers of optical plates are arranged on the carrying table; a moving mechanism is arranged below the carrying table and drives the carrying table to move to the position below the welding head. A pressure maintaining mechanism is arranged on the optical plate, and the pressure maintaining mechanism is in contact with the optical plate; laser welding is conducted on the optical plate through the welding head, pressure maintaining is conducted on the optical plate through the pressure maintaining mechanism in the welding process, warping caused by temperature rising of the optical plate in the laser welding process is avoided, the plane flatness of the optical plate is guaranteed, the optical plate can be machined and formed at a time, and the technological process is simple.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, and in particular to a welding device for optical materials. Background Technology

[0002] Currently, optical materials used for displays are composed of 2-4 optical sheets combined or fixed together. Existing methods mainly involve: one method is to manually stack the optical sheets together repeatedly to form two-in-one, three-in-one, or four-in-one optical sheets, which is labor-intensive; the optical sheets cannot be properly fixed together, causing friction and damage; the surface sheets easily adhere to the LCD screen surface; and the independent nature of each layer makes them more prone to deformation, affecting optical performance and uniformity.

[0003] Another type is a two-in-one, three-in-one, or four-in-one optical board that is formed by one or more screen printing (adhesive coating), lamination, rolling (pressing), and UV curing. This process involves more steps, resulting in lower production capacity and yield, and higher labor, equipment, and material costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an optical material welding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an optical material welding device, comprising:

[0006] Console;

[0007] The control console is equipped with a platform;

[0008] At least two layers of optical plates are provided on the platform;

[0009] A moving mechanism is provided below the platform, and the moving mechanism drives the platform to move to below the welding head;

[0010] The optical plate is provided with a pressure-holding mechanism, which is in contact with the optical plate.

[0011] As a further description of the above technical solution: the control console is divided into a feeding area and a welding area, and the moving mechanism drives the platform to move back and forth between the feeding area and the welding area.

[0012] As a further description of the above technical solution: the welding area is provided with guide rails arranged along the X-axis, Y-axis and Z-axis directions, and the welding head is mounted on the guide rails.

[0013] As a further description of the above technical solution: the pressure holding mechanism includes a support frame, and a lifting motor is provided below the support frame to drive the support frame to move in the vertical direction.

[0014] As a further description of the above technical solution: at least one or more layers of pressure-holding glass are provided on the support frame.

[0015] As a further description of the above technical solution: the thickness of the pressure-holding glass is 10-20mm.

[0016] As a further description of the above technical solution: the moving mechanism includes a motor and a drive gear, and the rotation of the drive gear drives the platform to move to below the pressure holding mechanism in the welding area.

[0017] As a further description of the above technical solution: a sensor is provided on one side of the moving mechanism to monitor the moving position of the platform.

[0018] As a further description of the above technical solution: the thickness of the optical plate is 0.1-1.5mm, and the distance between the welding position of the welding head and the edge of the optical plate is 0-3mm.

[0019] As a further description of the above technical solution: the console is equipped with a control panel.

[0020] The above technical solution has the following advantages or beneficial effects:

[0021] The optical substrate is laser-welded using a welding head. During the welding process, a pressure-holding mechanism is used to maintain pressure on the optical substrate to prevent it from warping due to heat rise during laser welding, thus ensuring the flatness of the optical substrate. The optical substrate can be processed and formed in one go, and the process is simple. Attached Figure Description

[0022] Figure 1 This is a perspective view of the welding device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the welding device proposed in this utility model. Figure 1 ;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the welding device proposed in this utility model. Figure 2 ;

[0026] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0027] Figure 6 This is a schematic diagram of the structure under pressure during welding.

[0028] Legend:

[0029] 1. Control console; 2. Stage; 3. Optical substrate; 4. Moving mechanism; 41. Drive gear; 42. Sensor; 5. Welding head; 6. Pressure holding mechanism; 61. Support frame; 62. Lifting motor; 63. Pressure holding glass; 7. Guide rail; 8. Control panel. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-6 An embodiment of this utility model provides an optical material welding device, comprising: a control console 1; a platform 2 disposed on the control console 1; at least two layers of optical plates 3 disposed on the platform 2; a moving mechanism 4 disposed below the platform 2, the moving mechanism 4 driving the platform 2 to move below the welding head 5; a pressure holding mechanism 6 disposed on the optical plates 3, the pressure holding mechanism 6 contacting the optical plates 3; and a control panel 8 disposed on the control console 1.

[0032] In this embodiment, the stage 2 is moved by the moving mechanism 4 on the control console 1, and the optical plate 3 is laser welded by the welding head 5. During the welding process, the optical plate 3 is pressure-maintained by the pressure holding mechanism 6 to prevent the optical plate 3 from warping due to heat rise during the laser welding process, thus ensuring the flatness of the optical plate 3. The optical plate 3 can be processed and formed in one go, and the process is simple.

[0033] The control console 1 is divided into a feeding area and a welding area. The moving mechanism 4 drives the platform 2 to move back and forth between the feeding area and the welding area. The welding area is equipped with guide rails 7 arranged along the X-axis, Y-axis and Z-axis, and welding heads 5 are installed on the guide rails 7.

[0034] In this embodiment, the guide rail 7 is an electric guide rail, and the position of the welding head 5 is adjusted and controlled by the control panel 8 to determine the welding position of the optical plate 3.

[0035] The pressure-holding mechanism 6 includes a support frame 61, and a lifting motor 62 is provided below the support frame 61 to drive the support frame 61 to move in the vertical direction; at least one or more layers of pressure-holding glass 63 are provided on the support frame 61; the thickness of the pressure-holding glass 63 is 10-20mm.

[0036] In this embodiment, the lifting motor 62 drives the pressure-holding glass 63 on the support frame 61 to move vertically. After the platform 2 moves the optical plate 3 to the welding area, the lifting motor 62 is controlled to move downward, so that the pressure-holding glass 63 is pressed on top of the optical plate 3. Then, laser welding is performed through the welding head 5. After welding is completed, pressure is maintained for 1-3 seconds to wait for the welding position to cool down. Then, the lifting motor 62 is controlled to move upward, and the platform 2 is moved out of the welding area by the moving mechanism 4 to complete the welding.

[0037] The moving mechanism 4 includes a motor and a drive gear 41. The drive gear 41 rotates to move the stage 2 to below the pressure holding mechanism 6 in the welding area. A sensor 42 is provided on one side of the moving mechanism 4 to monitor the moving position of the stage 2.

[0038] In this embodiment, the moving mechanism 4 includes a drive gear 41 connected to a motor. The drive gear 41 is directly meshed with the platform 2 or drives the platform 2 to move through a rack. The platform 2 is controlled to move back and forth between the feeding area and the welding area to transport the optical sheet 3. The moving position of the platform 2 is monitored by a sensor 42 to determine whether the platform 2 has entered the feeding area or the welding area.

[0039] The thickness of the optical plate 3 is 0.1-1.5mm, and the distance between the welding position of the welding head 5 and the edge of the optical plate 3 is 0-3mm.

[0040] In one specific embodiment, the optical substrate 3 has four layers, with the side closest to the stage 2 having a thickness of 1.2 mm and the remaining three layers having a thickness of 0.4 mm. The material is polystyrene. The control panel 8 sets the operating parameters of the control console 1 to control the movement and alignment of the stage 2, the output status of the welding head 5, and the operation of the pressure holding mechanism 6. The parameters include the direction of movement, the trajectory of movement, and the operating speed. Before welding, the optical substrate 3 requires surface cleaning, including but not limited to cleaning both sides of the optical material during the gripping and moving process using a blower and air pipes, applying adhesive rollers on a clean platform, and static electricity removal. The optical substrate 3 on the stage 2 is aligned and stacked in multiple layers to ensure no misalignment or deviation. The welding head 5 can be set with the number of lasers used and the wavelength parameters. The pressure holding mechanism 6 uses two or more sheets of transparent glass to maintain pressure on the optical substrate 3.

[0041] On the control panel 8, set the operating parameters of the stage 2 and the dimensions of the optical substrate 3, set the alignment point and welding area, and position and adjust the optical substrate 3. Stack multiple optical substrates 3 together to ensure no misalignment or deviation. Transfer and pressure-holding glass 63 is pressed onto the surface of the optical substrate 3 to maintain pressure, ensuring flatness and no tilting. The stage 2 is moved to the welding area, and after the welding head 5 parameters are adjusted, it moves to its initial position according to the positioning. The program is then run to weld the optical substrate 3. After welding, pressure is maintained for a period of time. The stage 2 returns to its initial position, the pressure-holding glass 63 is removed, and the welded optical substrate 3 is transferred out. Welding is complete.

[0042] Multiple optical plates 3 are welded and bonded using a laser welding device. Multiple lasers with precision calibration are moved to the starting point of the welding by computer program, and appropriate power and frequency are set so that the laser can melt the optical plates 3 to achieve the bonding effect. Then, the laser system is adjusted to adjust the running speed and path control to leave a welding straight line 0-3mm close to the edge on the optical plates 3. After welding, pressure is maintained for 1-3 seconds to wait for complete cooling.

[0043]

[0044]

[0045] Table 1

[0046] The welding speed and degree of warping vary depending on the number of optical substrate layers, as shown in Table 1.

[0047] All standard parts used in this embodiment can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An optical material welding apparatus characterized by comprising: Include: Control console (1); The control console (1) is provided with a loading platform (2); The loading platform (2) is provided with at least two layers of optical plate (3); The loading platform (2) is provided with a moving mechanism (4), the moving mechanism (4) drives the loading platform (2) to move to the welding head (5) below; The optical plate (3) is provided with a pressure maintaining mechanism (6), the pressure maintaining mechanism (6) is in contact with the optical plate (3).

2. The welding device of claim 1, wherein: The control console (1) is divided into a feeding area and a welding area, and the moving mechanism (4) drives the loading platform (2) to reciprocate between the feeding area and the welding area.

3. The welding device of claim 2, wherein: The welding area is provided with guide rails (7) arranged along X, Y and Z axes, and the welding head (5) is installed on the guide rails (7).

4. The welding device of claim 1, wherein: The pressure maintaining mechanism (6) includes a support frame (61), and a lifting motor (62) is arranged below the support frame (61) to drive the support frame (61) to move vertically.

5. The welding device of claim 4, wherein: The support frame (61) is provided with at least one layer or multiple layers of pressure maintaining glass (63).

6. The welding device of claim 5, wherein: The thickness of the pressure maintaining glass (63) is 10-20mm.

7. The welding device of claim 1, wherein: The moving mechanism (4) includes a motor and a driving gear (41), which rotates to drive the loading platform (2) to move to the pressure maintaining mechanism (6) below the welding area.

8. The welding device of claim 1, wherein: One side of the moving mechanism (4) is provided with a sensor (42) to monitor the moving position of the loading platform (2).

9. The welding device of claim 1, wherein: The thickness of the optical plate (3) is 0.1-1.5mm, and the distance between the welding position of the welding head (5) and the edge of the optical plate (3) is 0-3mm.

10. The welding device of claim 1, wherein: The control console (1) is provided with a control panel (8).

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