Screen plate placing platform of laser line drawing machine

Abstract

The utility model discloses a laser line drawing machine screen plate placing platform which comprises an outer frame and a flat plate arranged at the bottom of the outer frame, an inner plate is arranged in the outer frame, a plurality of round grooves are formed in the inner plate, arc-shaped grooves are formed in the four corners in the outer frame respectively, a plurality of adsorption holes are formed in the upper portions of the four edges of the outer frame respectively, and the adsorption holes are communicated with the arc-shaped grooves. Locking screws are arranged at the four corners of the upper portion of the outer frame respectively, round corners are arranged at the four corners of the outer frame respectively, air holes are formed in the side faces of the four edges of the outer frame respectively, the long-term use stability of the structure is guaranteed through an integrated structure, meanwhile, the hollow large round holes are formed in the middle, the strength and stability are guaranteed, meanwhile, the jig is light, and the production efficiency is improved. And two jackscrews are arranged beside each of the fixing screw holes in the periphery, so that the jig can be conveniently and accurately adjusted to be within 10 microns after being mounted, and the ingenious adsorption hole site design and the adsorption cavity structure ensure that the adsorption force and the flatness of the screen printing plate after being stably adsorbed are within 15 microns.

Description

Technical Field

[0001] The utility model belongs to the technical field related to photovoltaic screens, and in particular relates to a screen placement platform for a laser marking machine. Background Art

[0002] A laser marking machine is a device specifically used for precise marking in the manufacturing process of solar cells. Its main function is to use laser technology to mark electrode lines on the surface of silicon wafers or other materials to achieve higher photoelectric conversion efficiency. The laser marking machine stencil refers to a special tool or template used in the laser processing process. It is mainly used for marking electrode lines in the manufacture of solar cells. The design and material selection of the stencil will have a direct impact on the processing effect of the laser marking machine.

[0003] However, the existing stencil placement platform usually only has a hollowed-out outer frame for placing the stencil. When the stencil is placed on the platform for drawing lines, its position may move, thereby affecting the accuracy and stability. Utility Model Content

[0004] The purpose of the present utility model is to provide a screen placement platform for a laser line drawing machine, so as to solve the problem proposed in the above background technology that the existing screen placement platform usually has only one hollowed-out outer frame for placing the screen, and when the screen is placed on the platform for drawing lines, its position may move, thereby affecting the accuracy and stability.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a screen placement platform for a laser marking machine, comprising an outer frame and a flat plate arranged at the bottom of the outer frame;

[0006] An inner plate is provided inside the outer frame, a plurality of circular grooves are provided on the inner plate, arc grooves are provided at the four corners inside the outer frame, a plurality of adsorption holes are provided above the four sides of the outer frame, locking screws are provided at the four corners above the outer frame, rounded corners are provided at the four corners of the outer frame, an air hole is provided on the four sides of the outer frame, and a splicing plate is provided at the bottom of the outer frame.

[0007] Preferably, the inner plate is integrally connected to the outer frame, and a plurality of hollowed-out circular grooves are provided on the inner plate. The circular grooves can not only increase the strength of the inner plate but also ensure the stability of the mold.

[0008] Preferably, the material of the inner plate is aluminum. Using aluminum for the inner plate can not only reduce weight but also improve structural strength.

[0009] Preferably, the air holes need to be connected to an external vacuum generator, an air path is provided inside the outer frame, and the air holes are communicated with the adsorption holes on the outer frame.

[0010] Preferably, the air passage in the air holes is controlled by an external vacuum generator, and the adsorption holes can generate negative pressure through the vacuum generator, thereby adsorbing the screen.

[0011] Preferably, a flat plate is provided at the bottom of the outer frame, and the outer frame is fixed to the flat plate by locking screws at the four corners. Top screws are provided on both sides of the locking screws, and the levels of the four corners of the outer frame can be adjusted by the top screws.

[0012] Preferably, two adjustment slots are respectively provided on the flat plates on both sides of the outer frame, and fastening screws are provided inside the adjustment slots. The adjustment slots can be used to adjust the position of the flat plates.

[0013] Compared with the existing technology, the utility model provides a laser marking machine screen placement platform, which has the following beneficial effects:

[0014] 1. The integrated structure ensures the long-term stability of the structure. At the same time, a large circular hole is hollowed out in the middle. While ensuring strength and stability, it also makes the fixture lighter and ensures that the equipment load is not too heavy, so that it can run at high speed. The inner plate provides a stronger support and reduces any possible deformation to ensure the accuracy of the equipment during use, making the drawn lines more accurate and in line with the design requirements. The circular groove design not only reduces the weight of the inner plate, but also enhances its overall structural strength. Through reasonable geometric shapes, it can effectively disperse external forces and reduce stress concentration, which is crucial to improving the durability and pressure resistance of the equipment. The multiple circular grooves of the inner plate are hollowed out, which greatly reduces the overall weight of the screen placement platform.

[0015] 2. The ingenious adsorption hole design and adsorption cavity structure ensure the adsorption strength and the flatness of the screen after stable adsorption within 15um, which improves the adsorption stability and operational convenience of the screen placement platform. The adsorption holes form an effective negative pressure environment through the connection with the external vacuum generator. Even under small negative pressure conditions, the adsorption holes can still generate strong adsorption force. This feature enables the screen to be firmly fixed on the outer frame during placement, avoiding sliding or shifting during operation. With the help of the connection of the external vacuum generator, the user can easily adjust the adsorption force to achieve rapid adsorption and release. The design of the adsorption holes can achieve uniform pressure distribution on the screen surface, avoiding screen deformation caused by uneven force, which is crucial for subsequent processing and handling processes, ensuring the consistency and quality of the final product.

[0016] 3. The placement platform has high-precision surface flatness, ensuring that the screen can be placed on the fixture without the aid of height measurement. The height repeatability is good, reaching within 5um, saving about 15 minutes of height measurement time for each plate. Unlike the fixtures on the market that can only process the front side, this fixture is compatible with front and back side processing, greatly increasing its practicality.

[0017] 4. By setting the locking screws and top screws, two top screws are opened next to the fixing screw holes on all sides, which facilitates the precise adjustment of the level to within 10um after the fixture is installed. The top screw design allows the user to make fine adjustments independently on both sides to ensure the levelness of the outer frame. This high-precision adjustment method effectively reduces the drawing error caused by insufficient levelness, ensures the application of strict precision requirements, and improves the overall processing quality. In addition, the top screw adjustment is convenient and quick, and the operator can quickly make level adjustments without complex tools or tedious steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the above structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0020] Figure 3 For the utility model Figure 1 Schematic diagram of local structure.

[0021] Figure 4 This is a schematic diagram of the traditional placement platform structure of the present utility model.

[0022] Figure 5 This is a schematic diagram of the installation structure of the placement platform of the present utility model.

[0023] In the figure: 1. Locking screw; 2. Adsorption hole; 3. Circular groove; 4. Arc groove; 5. Inner plate; 6. Outer frame; 7. Air hole; 8. Round corner; 9. Splicing plate; 10. Top screw; 11. Fastening screw; 12. Traditional placement platform; 13. Inner frame; 14. Adjustment groove; 15. Flat plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides Figure 1-5The laser marking machine screen placement platform shown includes an outer frame 6 and a flat plate 15 arranged at the bottom of the outer frame 6;

[0026] An inner plate 5 is provided inside the outer frame 6, and a plurality of circular grooves 3 are provided on the inner plate 5. Arc grooves 4 are provided at the four corners inside the outer frame 6, a plurality of adsorption holes 2 are provided above the four sides of the outer frame 6, locking screws 1 are provided at the four corners above the outer frame 6, rounded corners 8 are provided at the four corners of the outer frame 6, an air hole 7 is provided on the four sides of the outer frame 6, and a splicing plate 9 is provided at the bottom of the outer frame 6.

[0027] In this embodiment, the laser marking machine screen refers to a special tool or template used in the laser processing process, which is mainly used for engraving electrode lines in the manufacture of solar cells. The design and material selection of the screen will have a direct impact on the processing effect of the laser marking machine. Usually, during processing, the screen needs to be placed on the screen platform. When using a traditional placement platform, the operator only needs to place the screen in the inner frame 13 in the middle of the outer frame 6, and then subsequent operations can be performed. When the screen is placed on the screen placement platform of the present invention, the negative pressure generated by the adsorption holes 2 on the outer frame 6 can adsorb and fix the screen, making it convenient for subsequent operations.

[0028] like Figure 1 and Figure 2 As shown, the inner plate 5 is integrally connected to the outer frame 6. There are multiple hollowed-out circular grooves 3 on the inner plate 5. The circular grooves 3 can not only increase the strength of the inner plate 5, but also ensure the stability of the mold. The material of the inner plate 5 is aluminum. The use of aluminum for the inner plate 5 can not only reduce the weight but also improve the strength of the structure.

[0029] Preferably, through the arrangement of the circular grooves 3 and the inner plate 5, compared with the traditional placement platform 12 which usually has only one outer frame 6 and the interior of the outer frame 6 is completely hollowed out for placing the screen, the screen placement platform of the utility model has an inner plate 5 arranged inside the outer frame 6. The inner plate 5 can increase the stability of the screen placement platform and ensure the accuracy of the screen during the drawing process. At the same time, since multiple circular grooves 3 are hollowed out on the inner plate 5, the circular grooves 3 can not only increase the structural strength of the inner plate 5, but also reduce the overall weight of the screen placement platform.

[0030] like Figure 1 and Figure 2 As shown, the air hole 7 needs to be connected to an external vacuum generator, an air path is provided inside the outer frame 6, the air hole 7 is connected to the adsorption hole 2 on the outer frame 6, the air path in the air hole 7 is controlled by the external vacuum generator, and the adsorption hole 2 can generate negative pressure through the vacuum generator, thereby adsorbing the screen.

[0031] Preferably, through the setting of the air holes 7 and the adsorption holes 2, the clever adsorption hole position design and the adsorption cavity structure ensure that the adsorption strength and the flatness of the screen after adsorption are stable within 15um. The screen placement platform of the utility model has a unique air path design. By connecting the air holes on the outside of the outer frame 6 with the external vacuum generator, the adsorption holes 2 on the outer frame 6 can generate negative pressure, and then the upper screen can be adsorbed and fixed. At the same time, the design of the adsorption holes 2 makes it possible to generate a large adsorption force when the external vacuum generator generates a very small negative pressure, thereby ensuring the stability of the screen placed on the outer frame 6. The placement platform has high-precision surface flatness, which ensures that the screen can be placed on the jig without the aid of height measurement, and has good height repeatability, reaching within 5um, saving about 15 minutes of height measurement time for each plate. Unlike the jigs on the market that can only process the front side, this jig is compatible with front and back processing, which greatly increases practicality.

[0032] like Figure 3 and Figure 5 As shown, a flat plate 15 is provided at the bottom of the outer frame 6, and the outer frame 6 is fixed to the flat plate 15 by locking screws 1 at the four corners. Top screws 10 are respectively provided on both sides of the locking screws 1. The level of the four corners of the outer frame 6 can be adjusted by the top screws 10. Two adjustment slots 14 are respectively provided on the flat plates 15 on both sides of the outer frame 6. Fastening screws 11 are provided inside the adjustment slots 14. The adjustment slots 14 can be used to adjust the position of the flat plate 15.

[0033] Preferably, by setting the locking screw 1 and the top screw 10, two top screws are opened next to the fixing screw holes on all sides, so that the level can be accurately adjusted to within 10um after the fixture is installed. The four corners of the screen placement platform of the utility model are fixed and installed by the locking screw 1 and the flat plate 15 respectively. Top screws 10 are respectively provided on both sides of the locking screw 1. By adjusting the top screws 10 on both sides, the outer frame 6 can be adjusted horizontally conveniently and with high precision to ensure the accuracy of the screen when drawing lines.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screen placement platform for a laser marking machine, comprising an outer frame (6) and a flat plate (15) arranged at the bottom of the outer frame (6); Its characteristics are: An inner plate (5) is provided inside the outer frame (6), a plurality of circular grooves (3) are provided on the inner plate (5), arc grooves (4) are provided at the four corners inside the outer frame (6), a plurality of adsorption holes (2) are provided above the four sides of the outer frame (6), locking screws (1) are provided at the four corners above the outer frame (6), rounded corners (8) are provided at the four corners of the outer frame (6), an air hole (7) is provided on the four sides of the outer frame (6), and a splicing plate (9) is provided at the bottom of the outer frame (6).

2. The screen placement platform for a laser marking machine according to claim 1, characterized in that: The inner plate (5) is integrally connected to the outer frame (6). The inner plate (5) is provided with a plurality of hollowed-out circular grooves (3). The circular grooves (3) can not only increase the strength of the inner plate (5) but also ensure the stability of the mold.

3. The screen placement platform for a laser marking machine according to claim 2, characterized in that: The material of the inner plate (5) is aluminum. The use of aluminum for the inner plate (5) can not only reduce weight but also improve the strength of the structure.

4. The screen placement platform for a laser marking machine according to claim 1, characterized in that: The air hole (7) needs to be connected to an external vacuum generator, an air path is provided inside the outer frame (6), and the air hole (7) is communicated with the adsorption hole (2) on the outer frame (6).

5. The screen placement platform for a laser line marking machine according to claim 4, characterized in that: The air path in the air hole (7) is controlled by an external vacuum generator, and the adsorption hole (2) can generate negative pressure through the vacuum generator, thereby adsorbing the screen.

6. The screen placement platform for a laser marking machine according to claim 1, characterized in that: A flat plate (15) is provided at the bottom of the outer frame (6), and the outer frame (6) is fixed to the flat plate (15) by means of locking screws (1) at four corners. Top screws (10) are provided on both sides of the locking screws (1), and the levels of the four corners of the outer frame (6) can be adjusted by means of the top screws (10).

7. The screen placement platform for a laser marking machine according to claim 6, characterized in that: Two adjustment slots (14) are respectively provided on the flat plates (15) on both sides of the outer frame (6), and fastening screws (11) are provided inside the adjustment slots (14). The adjustment slots (14) can be used to adjust the position of the flat plates (15).

Images