A multi-level partitioned vacuum adsorption platform structure and its use method

Abstract

The present application provides a multi-level partitioned vacuum adsorption platform structure and its use method, which belongs to the technical field of precision machining adsorption devices, including a platform with a placement plane on the top, and also including a 90° staggered exhaust pipe 1 and exhaust pipe 2, both of which are set through the platform, and both ends of the exhaust pipe 1 and the exhaust pipe 2 are provided with valves for connecting to an external pressure gas source. In the above scheme, by setting the exhaust pipe 1 and the exhaust pipe 2, according to the size of the product, through the staggered setting of the exhaust pipe 1 and the exhaust pipe 2, and the staggered setting of the exhaust holes on the exhaust pipe 1 and the exhaust pipe 2, it is compatible with the product size of any length and width ratio, involving a control scheme for achieving NXN vacuum distribution area adjustment by adjusting N+N groups of vacuum control components. The overall structure is simple and can realize the function of graded vacuum range adjustment, thereby achieving adsorption compatibility of products with any length and width ratio size in the area.

Description

Technical Field

[0001] The present application relates to the technical field of precision machining adsorption devices, and in particular to a multi-stage partitioned vacuum adsorption platform structure and a method for using the same. Background Art

[0002] The vacuum adsorption platform plays a role in fixing and supporting products in the production process of SMT, semiconductors, solar energy, precision molds and optical molds, ceramics and glass slices. The surface of the vacuum adsorption platform is equipped with multiple small holes. By creating a vacuum environment in the small holes, the adsorption force is formed to achieve the effect of fixing the product.

[0003] The existing vacuum adsorption platform partitions are mainly customized according to the sizes of several products, which cannot achieve compatibility with a wide range of product sizes. Because the existing structure is designed with circular vacuum partitions based on product sizes, it cannot be compatible with product sizes with arbitrary length and width ratios. When the equipment imports new models of products, problems such as incompatibility of adsorption areas may occur. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a multi-level partitioned vacuum adsorption platform structure and its use method to be compatible with products with different length-to-width ratios.

[0005] To solve the above technical problems, this application provides the following technical solutions:

[0006] A multi-stage partitioned vacuum adsorption platform structure includes a platform with a placement plane on the top, and also includes an exhaust pipe 1 and an exhaust pipe 2 arranged at 90° staggered, the exhaust pipe 1 and the exhaust pipe 2 are both arranged through the platform, and the exhaust pipe 1 and the exhaust pipe 2 are both provided with valves for connecting to an external pressure air source, the exhaust pipe 1 and the exhaust pipe 2 are both provided with exhaust holes on the periphery, and the top of the platform is provided with air vents corresponding to the exhaust holes, and an adjusting pipe is coaxially arranged inside the exhaust pipe 1, one end of the adjusting pipe is hollowed out, and an adjusting block is attached to the outside of the other end of the exhaust pipe 1, and the adjusting block and the adjusting pipe are attracted to each other by magnetic force.

[0007] Preferably, an annular groove is provided in the middle of the outer wall of the regulating tube, and the side wall of the middle groove on the outer side of the regulating tube is hollowed out. The length of the regulating tube is consistent with the length of the exhaust pipe, and the opening width of the middle groove on the outer side of the regulating tube is one third of the length of the regulating tube. The outer wall of the regulating tube is provided with staggered ventilation holes.

[0008] Preferably, the upper and lower sides of the outer wall of the first exhaust pipe are provided with exhaust holes, and the upper and lower exhaust holes of the first exhaust pipe are staggered with each other;

[0009] The outer diameter of the regulating tube is the same as the inner diameter of the first exhaust pipe.

[0010] Preferably, the number of the first exhaust pipes includes eight, and the eight first exhaust pipes are equidistantly arranged above the side wall of the platform;

[0011] The number of the second exhaust pipes includes seven, and the seven second exhaust pipes are arranged at equal distances below the other side wall of the platform;

[0012] The second exhaust pipe is arranged below the first exhaust pipe, and an exhaust hole is opened in the middle of the second exhaust pipe.

[0013] Preferably, the exhaust pipe is connected to the valve through a thread, and the end of the regulating pipe abuts against the end of the valve.

[0014] Preferably, a sleeve is provided on the side wall of the platform, a positioning pin is passed through the top of the sleeve, the exhaust pipe 1 is provided through the sleeve, and a positioning groove matching the positioning pin is circumferentially provided on the outer side wall of the exhaust pipe 1.

[0015] Preferably, the exhaust holes on the outer walls of the exhaust pipe 1 and the exhaust pipe 2 are both provided with sealing rings.

[0016] Preferably, a magnet is embedded in the end surface of the adjustment block, and the magnet is a neodymium magnet.

[0017] Preferably, a positioning bolt is passed through the side wall of the adjustment block, and the adjustment block is rotatably connected to the side wall of the platform via a bearing.

[0018] On the other hand, the present application provides a method for using a multi-level partitioned vacuum adsorption platform structure:

[0019] S1: Place the product to be adsorbed and fixed at the center of the top of the platform;

[0020] S2: According to the length and width ratio of the product, open the corresponding valves at the two ends of the exhaust pipe. Open the valve of the exhaust pipe 2 directly below the position covered by the product, and close the valve of the uncovered part to achieve adsorption and fixation through negative pressure.

[0021] S3: According to the length and width ratio of the product, rotate the exhaust pipe 1 and align the exhaust holes on the exhaust pipe 1 with the exhaust holes on the covered part of the product;

[0022] S4: According to the length and width ratio of the product, rotate the adjustment block to rotate the adjustment tube, close the unused exhaust holes on the exhaust pipe through the adjustment tube, open the valve at one end of the corresponding exhaust pipe, and achieve further adsorption and fixation of the product.

[0023] Compared with the prior art, this application has at least the following beneficial effects:

[0024] In the above scheme, by setting the exhaust pipe one and the exhaust pipe two, according to the size of the product, the exhaust pipe one and the exhaust pipe two are staggered, and the exhaust holes on the exhaust pipe one and the exhaust pipe two are staggered, so as to be compatible with the product size of any length and width ratio. It involves a control scheme of achieving NXN vacuum distribution area adjustment by adjusting N+N groups of vacuum control components. The overall structure is simple and can realize the function of graded vacuum range adjustment, thereby achieving adsorption compatibility of products with any length and width ratio in the area.

[0025] In the above scheme, by setting up an adjusting tube and an adjusting block, a single exhaust tube is provided with multiple exhaust holes. For products that can only partially cover the exhaust holes on the exhaust tube, the adjusting block is rotated to drive the adjusting tube to rotate, thereby forming a closure for the redundant exhaust holes to ensure that the vacuum environment inside the exhaust tube is reliable and effective, thereby achieving compatibility with product sizes of any length and width ratios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0027] Figure 1 This is a schematic diagram of the overall structure of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the second exhaust pipe in this application;

[0029] Figure 3 This is a schematic diagram of a cross-sectional structure of an exhaust pipe in this application;

[0030] Figure 4 This is a schematic diagram of the regulating tube structure in this application;

[0031] Figure 5 This is a schematic diagram of the adjustment block structure in this application;

[0032] Figure 6 This is a schematic diagram of the sleeve structure in this application;

[0033] Figure 7 For this application Figure 3 Enlarged structural diagram at point A in the middle.

[0034] [Reference Signs]

[0035] 1. Platform; 101. Sleeve; 102. Locating pin; 2. Exhaust pipe 1; 201. Adjusting pipe; 202. Adjusting block; 2021. Magnet; 2022. Locating bolt; 3. Exhaust pipe 2; 4. Sealing ring; 5. Valve. DETAILED DESCRIPTION

[0036] The following describes in detail a multi-stage partitioned vacuum adsorption platform structure and its use method provided by the present application, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present application.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A multi-stage partitioned vacuum adsorption platform structure is shown, and an embodiment of the present application provides a platform 1 with a placement plane on the top, and also includes an exhaust pipe 2 and an exhaust pipe 3 staggered at 90 degrees. The exhaust pipe 2 and the exhaust pipe 3 are both arranged through the platform 1, and the ends of the exhaust pipe 2 and the exhaust pipe 3 are provided with valves 5 for connecting to an external pressure gas source. The outer periphery of the exhaust pipe 2 and the exhaust pipe 3 are provided with exhaust holes, and the top of the platform 1 is provided with air vents corresponding to the exhaust holes. An adjusting pipe 201 is coaxially arranged inside the exhaust pipe 2, one end of the adjusting pipe 201 is hollowed out, and an adjusting block 202 is attached to the outside of the other end of the exhaust pipe 2, and the adjusting block 202 and the adjusting pipe 201 are attracted to each other by magnetic force;

[0039] The top surface of the platform 1 is flat and smooth. The suction pipe 1 2 and the suction pipe 2 3 are both connected to the external vacuum equipment. In actual use, the product to be adsorbed and fixed is placed in the center of the top of the platform 1. After observing the length and width ratio of the product, the operator opens the valve 5 corresponding to the end of the suction pipe 2 3 and opens the valve 5 of the suction pipe 2 3 just below the position covered by the product. A vent corresponding to the suction pipe 2 3 is provided at the center line of the top of the platform 1. By extracting the air in the suction pipe 2 3, a negative pressure environment is formed in the vent corresponding to the suction pipe 2 3 on the top of the platform 1 covered by the product, thereby generating adsorption force and achieving the effect of fixing the product;

[0040] Further, the corresponding exhaust pipe 1-2 is selected according to the length and width ratio of the product, and the exhaust pipe 1-2 at the position covering the product is vacuumed to form an adsorption and fixing effect;

[0041] A single exhaust pipe 2 is provided with multiple exhaust holes. Therefore, when the product can only partially cover the exhaust holes on the exhaust pipe 2, the adjustment block 202 is rotated to drive the adjustment pipe 201 to rotate, thereby forming a closure for the redundant exhaust holes to prevent the vacuum environment inside the exhaust pipe 2 from failing.

[0042] In this embodiment, Figure 2-Figure 7 As shown: an annular groove is provided in the middle of the outer wall of the regulating tube 201, and the side wall of the middle groove of the outer side of the regulating tube 201 is hollowed out. The length of the regulating tube 201 is consistent with the length of the exhaust pipe 2. The opening width of the middle groove of the outer side of the regulating tube 201 is one-third of the length of the regulating tube 201. The outer wall of the regulating tube 201 is provided with staggered ventilation holes.

[0043] The regulating tube 201 can close two-thirds of the exhaust holes on the exhaust tube 1 2, so that the exhaust tube 1 2 can be used for products that are only one-third of its own length. The single exhaust hole set on the single exhaust tube 2 3 can absorb products that are slightly larger than the exhaust hole on the top of the platform 1, thereby achieving compatibility with product sizes of any length and width ratio.

[0044] The upper and lower sides of the outer wall of the exhaust pipe 2 are provided with exhaust holes, and the exhaust holes on the upper and lower sides of the exhaust pipe 2 are staggered with each other;

[0045] The outer diameter of the regulating tube 201 is the same as the inner diameter of the exhaust pipe 2;

[0046] like Figure 3 and Figure 7 As shown, the exhaust pipe 1 is provided with exhaust holes on both the upper and lower sides, and the exhaust pipe 1 is rotatable relative to the platform 1. Therefore, when the exhaust pipe 1 is turned 180 degrees, another set of exhaust holes can be activated, thereby further adapting to products with different length and width ratios.

[0047] The regulating tube 201 can only rotate relative to the exhaust pipe 1-2. The regulating tube 201 is provided with through holes corresponding to the two sets of exhaust holes on the exhaust pipe 1-2. Therefore, the regulating tube 201 can ensure that both sets of exhaust holes on the exhaust pipe 1-2 can be used.

[0048] By rotating the regulating tube 201, the two sets of exhaust holes on the exhaust pipe 2 can be closed, thereby adapting to products with smaller sizes and improving the scope of application.

[0049] The number of the exhaust pipes 2 includes eight, and the eight exhaust pipes 2 are arranged equidistantly above the side wall of the platform 1;

[0050] The number of the second exhaust pipes 3 includes seven, and the seven second exhaust pipes 3 are arranged at equal distances below the other side wall of the platform 1;

[0051] The second exhaust pipe 3 is arranged below the first exhaust pipe 2, and an exhaust hole is opened in the middle of the second exhaust pipe 3;

[0052] like Figure 2 As shown, the exhaust pipe 1 2 and the exhaust pipe 2 3 are respectively arranged on two adjacent side walls of the platform 1, which do not interfere with each other and effectively reduce the occupied space and are convenient for assembly and maintenance;

[0053] By evenly arranging the exhaust pipe 1 2 and the exhaust pipe 2 3, the adsorption force can be evenly distributed and the adsorption parts can be evenly distributed, which is convenient for adapting to the product.

[0054] The exhaust pipe 2 is connected to the valve 5 through a thread, and the end of the regulating pipe 201 abuts against the end of the valve 5;

[0055] like Figure 1 and Figure 2 As shown, the regulating tube 201 is limited by the valve 5 to reduce the axial movement space of the regulating tube 201, thereby facilitating the alignment of the regulating tube 201 with the exhaust hole on the exhaust pipe 2.

[0056] The side wall of the platform 1 is provided with a sleeve 101, the top of the sleeve 101 is penetrated by a positioning pin 102, the exhaust pipe 101 is provided through the sleeve 101, and the outer wall of the exhaust pipe 102 is provided with a positioning groove that matches the positioning pin 102 in an annular direction;

[0057] like Figure 3 and Figure 7 As shown, two sets of exhaust holes are provided on the exhaust pipe 2. The exhaust pipe 2 is rotated accordingly, and the exhaust pipe 2 is positioned through the sleeve 101 and the positioning pin 102 to avoid misalignment between the exhaust pipe 2 and the platform 1 and ensure stability in use.

[0058] The exhaust holes on the outer walls of the exhaust pipe 1 2 and the exhaust pipe 2 3 are both provided with sealing rings 4;

[0059] like Figure 7 As shown, the sealing ring 4 can effectively reduce the gap between the contact parts, thereby reducing air leakage, which is conducive to maintaining a vacuum environment for a long time to produce a stable adsorption and fixing effect.

[0060] A magnet 2021 is embedded in the end surface of the adjustment block 202, and the magnet 2021 is a neodymium magnet;

[0061] like Figure 1 、 Figure 2 and Figure 5 As shown, the regulating block 202 and the regulating tube 201 achieve an attraction effect through magnetic force, and the end of the regulating tube 201 can remain closed, which is beneficial to controlling leakage and reducing the complexity of maintenance and assembly.

[0062] The side wall of the adjustment block 202 is penetrated by a positioning bolt 2022, and the adjustment block 202 is rotatably connected to the side wall of the platform 1 through a bearing;

[0063] like Figure 1 、 Figure 2 and Figure 5 As shown, the adjusting block 202 is rotatable relative to the platform 1. By rotating the positioning bolt 2022, the adjusting block 202 is fixed by utilizing the pre-tightening force of the positioning bolt 2022, thereby limiting the rotation of the adjusting block 202 and the adjusting tube 201, and maintaining the accurate position of the adjusting tube 201 relative to the exhaust pipe 2.

[0064] Furthermore, a multi-level partitioned vacuum adsorption platform structure is used as follows:

[0065] S1: Place the product to be adsorbed and fixed at the top center of platform 1;

[0066] S2: According to the length and width ratio of the product, open the valve 5 corresponding to the end of the exhaust pipe 2 3, open the valve 5 of the exhaust pipe 2 3 directly below the position covered by the product, and close the valve 5 of the uncovered part, so as to achieve adsorption and fixation through negative pressure;

[0067] S3: According to the length and width ratio of the product, rotate the exhaust pipe 2 and align the exhaust holes on the exhaust pipe 2 with the exhaust holes on the part covered by the product;

[0068] S4: According to the length-width ratio of the product, rotate the adjustment block 202 to rotate the adjustment tube 201, close the unused exhaust holes on the exhaust pipe 2 through the adjustment tube 201, and open the valve 5 at the end of the corresponding exhaust pipe 2 to achieve further adsorption and fixation of the product.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-level partitioned vacuum adsorption platform structure, comprising a platform (1) with a placement plane on the top, characterized in that: It also includes an exhaust pipe (2) and an exhaust pipe (3) arranged at 90 degrees in an interlaced manner, wherein the exhaust pipe (2) and the exhaust pipe (3) are both arranged through the platform (1), and the ends of the exhaust pipe (2) and the exhaust pipe (3) are both provided with valves (5) for connecting to an external pressure gas source, and the outer peripheries of the exhaust pipe (2) and the exhaust pipe (3) are both provided with exhaust holes, and the top of the platform (1) is provided with an air vent corresponding to the exhaust hole, and the interior of the exhaust pipe (2) is coaxially provided with an adjusting pipe (201), one end of which is hollowed out, and the outer side of the other end of the exhaust pipe (2) is attached with an adjusting block (202), and the adjusting block (202) and the adjusting pipe (201) are attracted to each other by magnetic force; An annular groove is provided in the middle of the outer wall of the regulating tube (201), and the side wall of the groove in the middle of the outer side of the regulating tube (201) is hollowed out. The length of the regulating tube (201) is consistent with the length of the exhaust pipe (2). The opening width of the groove in the middle of the outer side of the regulating tube (201) is one third of the length of the regulating tube (201). The outer wall of the regulating tube (201) is provided with staggered ventilation holes. The upper and lower sides of the outer wall of the exhaust pipe (2) are both provided with exhaust holes, and the upper and lower exhaust holes of the exhaust pipe (2) are staggered with each other; The outer diameter of the regulating tube (201) is the same as the inner diameter of the exhaust tube (2).

2. The multi-level partitioned vacuum adsorption platform structure according to claim 1, characterized in that: The number of the exhaust pipes (2) is eight, and the eight exhaust pipes (2) are arranged at equal intervals above the side wall of the platform (1); The number of the second exhaust pipes (3) includes seven, and the seven second exhaust pipes (3) are arranged at equal distances below the other side wall of the platform (1); The second exhaust pipe (3) is arranged below the first exhaust pipe (2), and an exhaust hole is provided in the middle of the second exhaust pipe (3).

3. The multi-level partitioned vacuum adsorption platform structure according to claim 2, characterized in that: The exhaust pipe (2) is connected to the valve (5) through a threaded connection, and the end of the regulating pipe (201) abuts against the end of the valve (5).

4. The multi-level partitioned vacuum adsorption platform structure according to claim 3, characterized in that: The side wall of the platform (1) is provided with a sleeve (101), the top of the sleeve (101) is penetrated by a positioning pin (102), the exhaust pipe (2) is provided through the sleeve (101), and the outer side wall of the exhaust pipe (2) is circumferentially provided with a positioning groove matching the positioning pin (102).

5. The multi-level partitioned vacuum adsorption platform structure according to claim 1, characterized in that: The air extraction holes on the outer walls of the air extraction pipe 1 (2) and the air extraction pipe 2 (3) are both provided with sealing rings (4).

6. The multi-level partitioned vacuum adsorption platform structure according to claim 1, characterized in that: A magnet (2021) is embedded in the end surface of the regulating block (202), and the magnet (2021) is a neodymium magnet.

7. The multi-stage partitioned vacuum adsorption platform structure according to claim 1, characterized in that: A positioning bolt (2022) is passed through the side wall of the adjustment block (202), and the adjustment block (202) is rotatably connected to the side wall of the platform (1) via a bearing.

8. The method for using the multi-level partitioned vacuum adsorption platform structure according to any one of claims 1 to 7, characterized in that: S1: Place the product to be adsorbed and fixed on the top center of the platform (1); S2: According to the length and width ratio of the product, the valve (5) corresponding to the end of the second exhaust pipe (3) is opened, the valve (5) of the second exhaust pipe (3) directly below the position covered by the product is opened, and the valve (5) of the uncovered position is closed, so as to achieve adsorption and fixation through negative pressure; S3: According to the length-width ratio of the product, rotate the exhaust pipe 1 (2) and align the exhaust holes on the exhaust pipe 1 (2) with the exhaust holes on the part covered by the product; S4: According to the length-width ratio of the product, the adjusting block (202) is rotated to rotate the adjusting tube (201), and the unused exhaust holes on the exhaust tube (2) are closed through the adjusting tube (201), and the valve (5) at the end of the corresponding exhaust tube (2) is opened to achieve further adsorption and fixation of the product.

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