Flat porous air floating block device

Abstract

The utility model relates to a flat porous air floating block device which comprises an air floating block outer frame and a porous air outlet block, the porous air outlet block is provided with uniformly and densely distributed air holes, the air floating block outer frame is arranged above the porous air outlet block, the bottom of the air floating block outer frame is provided with a groove matched with the porous air outlet block, and the porous air outlet block is arranged in the groove. The bottom surface of the air floating block outer frame is flush with the bottom surface of the porous air outlet block; air channels are evenly distributed on the opposite inner surfaces of the air floating block outer frame and the porous air outlet block, one end of each air channel is connected with an air inlet, the air inlets are formed in the side face of the air floating block outer frame, the other end of each air channel is connected with the porous air outlet block, air is discharged through air holes of the porous air outlet block, and the air floating function is achieved. The air floatation block can work stably, popularization and application of a large-scale air floatation device are facilitated, the maintenance cost is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flotation blocks, in particular to a flat plate porous air flotation block device. Background Art

[0002] The flotation platform is used in many fields due to its extremely high precision and stability. The core component of the flotation platform is the flotation module. The flotation module can be divided into a small hole throttling structure and a porous structure according to the structural characteristics: 1. The small hole throttling structure has the characteristics of large bearing capacity, high rigidity and small mass flow, but the relative stability is poor. The small holes with an aperture of only millimeters are easily blocked, causing the flotation block to lose balance and fall on the platform, causing great losses and high maintenance costs. In particular, the flotation module on large equipment has extremely high requirements for its stability; 2. The porous structure is generally made of graphite. Due to the natural physical properties of graphite, the pores are very tight and uniform, providing a good averaging effect. However, the graphite flotation block contains a large amount of adhesive, which will cause aging and powdering after long-term use, and it cannot be sealed. The powder generated by the graphite flotation block itself causes environmental pollution, which cannot be used for equipment that requires a high clean environment. In addition, graphite is conductive and is not suitable for use in an insulating environment.

[0003] The applicant first proposed the use of an air-floating movable die head on a flat plate coating machine, which can greatly improve the accuracy of the coating die head. However, for high-precision flat plate coating machines, especially large-scale flat plate coating devices, extremely high requirements are placed on the stability and flatness of the air-floating blocks used, and extremely high requirements are placed on the cleanliness of the production environment. Therefore, small-hole throttling air-floating blocks and graphite air-floating blocks are not applicable. There is an urgent need for a flat multi-porous air-floating block device suitable for the air-floating die head of a nano-scale flat plate coating device. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provides a flat porous air flotation block device and the surface of the air flotation block.

[0005] The purpose of the utility model is achieved in this way:

[0006] A flat porous air flotation block device, comprising an air flotation block outer frame and a porous air outlet block, wherein the porous air outlet block has uniformly dense air holes, the air flotation block outer frame is wrapped around the porous air outlet block, a groove matching the porous air outlet block is provided at the bottom of the air flotation block outer frame, the porous air outlet block is arranged in the groove, and the bottom surface of the air flotation block outer frame is flush with the bottom surface of the porous air outlet block;

[0007] A cavity is provided between the outer frame of the air flotation block and the porous air outlet block, and evenly distributed air channels are provided on the inner surfaces opposite to each other of the outer frame of the air flotation block and the porous air outlet block. One end of the air channel is connected to an air inlet, and the air inlet is arranged on the side of the outer frame of the air flotation block. The other end of the air channel is connected to the porous air outlet block, and air is discharged through the air holes of the porous air outlet block to realize the air flotation function.

[0008] Furthermore, the air passages include at least one group of U-shaped air passages, and each group of U-shaped air passages is connected to the air inlet through the air inlet channel 7 .

[0009] Furthermore, the porous gas outlet block is a powder metallurgy block.

[0010] Furthermore, the porous air outlet block is a 3D printed block.

[0011] Furthermore, a ball seat is provided at the center of the top surface of the outer frame of the air flotation block, and the ball head end of the ball head screw is connected through the ball seat.

[0012] Furthermore, a screw stopper is sleeved outside the ball end of the ball screw, and the screw stopper is fixed on the top surface of the outer frame of the air flotation block.

[0013] Furthermore, the ball screw is provided with a nut for fastening.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a flat porous air flotation block device, wherein a porous air outlet block is arranged on an air outlet surface, the porous air outlet block adopts a powder metallurgy block or a 3D printing block, and the porous air outlet block is manufactured by a powder metallurgy process or a 3D printing process, and the other surfaces of the porous air outlet block are sealed and protected by an outer frame, and only the air outlet surface is exposed, and the air flotation function is realized by distributing air ducts and setting cavity balanced pressure; the air can be evenly distributed, and there is no safety hazard of aging and powder shedding, and the utility model can be applied to a highly clean production environment, so that the air flotation block can work highly stably, which is conducive to the popularization and application of large-scale air flotation devices, greatly reduces maintenance costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of Example 1 of the utility model.

[0017] Figure 2 This is a schematic diagram of the airway arrangement of Example 1 of the present utility model.

[0018] Figure 3 for Figure 2 AA section view.

[0019] Figure 4 This is a schematic structural diagram of Example 2 of the utility model.

[0020] Figure 5 This is a schematic diagram of the airway arrangement of Example 2 of the present utility model.

[0021] Figure 6 for Figure 5 BB cross-sectional view.

[0022] in:

[0023] The air flotation block outer frame 1, the air inlet 11, the porous air outlet block 2, the ball screw 3, the screw stopper 4, the nut 5, the air channel 6, and the air inlet channel 7. DETAILED DESCRIPTION

[0024] In order to better understand the technical solution of the present invention, the following will be described in detail in conjunction with the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention, and are only implementations that can be adopted by the technical solution of the present invention. It should be noted that the description of the positional relationship of each component in this article, such as component A being located above component B, is based on the description of the relative positions of the components in the illustration, and is not intended to limit the actual positional relationship of the components. Example 1

[0025] See also Figure 1-3 , Figure 1 The structure diagram of a flat porous air flotation block device of this embodiment is drawn. As shown in the figure, a flat porous air flotation block device involved in this embodiment 1 is a die head air flotation moving device for flat coating, which includes an air flotation block outer frame 1 and a porous air outlet block 2, wherein the air flotation block outer frame 1 is wrapped around the porous air outlet block 2, and a groove matching the porous air outlet block 2 is provided at the bottom of the air flotation block outer frame 1, and the porous air outlet block 2 is arranged in the groove, and the bottom surface of the air flotation block outer frame 1 is flush with the bottom surface of the porous air outlet block 2.

[0026] A cavity is provided between the air flotation block outer frame 1 and the porous air outlet block 2 for air pressure balance; a group of evenly distributed air channels 6 are provided on the opposite inner surfaces of the air flotation block outer frame 1 and the porous air outlet block 2, and the air channels 6 are evenly arranged on the inner surface of the air flotation block outer frame 1 in the shape of an elliptical groove, and one end of each circle of the air channels 6 of the circular air channels is connected to the air inlet 11 through the air inlet channel 7, and the air inlet 11 is arranged on the side of the air flotation block outer frame 1, and the other end of the air channels 6 is connected to the porous air outlet block 2, and air is discharged through the air holes of the porous air outlet block 2 itself to realize the air flotation function.

[0027] A ball seat is provided at the center of the top surface of the air flotation block outer frame 1, and the ball head end of the ball head screw 3 is connected through the ball seat. The outer sleeve of the ball head end of the ball head screw 3 is provided with a screw stopper 4, and the screw stopper 4 is fixed on the top surface of the air flotation block outer frame 1. The ball head screw 3 is provided with a nut 5 for tightening.

[0028] The porous gas outlet block 2 is a powder metallurgy block with uniform and dense pores made by a powder metallurgy process.

[0029] See also Figure 4-6 , Figure 4 The structure diagram of a flat porous air flotation block device of this embodiment is shown in the figure. As shown in the figure, the flat porous air flotation block device involved in this embodiment 2 is different from that in embodiment 1 in that two groups of air passages 6 are evenly distributed on the inner surfaces of the air flotation block outer frame 1 and the porous air outlet block 2: a left zigzag air passage and a right zigzag air passage, and each group of air passages 6 is evenly arranged on the inner surface of the air flotation block outer frame 1 in the shape of a zigzag groove;

[0030] An air inlet 11 is respectively provided on the left and right sides of the air flotation block outer frame 1, and the side air inlet 11 is respectively connected to the two groups of air passages 6 through a penetrating air inlet channel 7; two left and right air inlets 11 are provided on the front of the air flotation block outer frame 1, the left air inlet is arranged on the central axis of the left circular air passage, and is connected to the left circular air passage through an air inlet channel 7, and the right air inlet is arranged on the central axis of the right circular air passage, and is connected to the right circular air passage through an air inlet channel 7.

[0031] The porous air outlet block 2 is a 3D printed block, which is manufactured using a 3D printing process.

[0032] Working principle:

[0033] The utility model provides a flat porous flotation block device, which adopts powder metallurgy or 3D printing to manufacture porous outlet blocks. When using powder metallurgy, the permeability of the porous outlet block can be adjusted by adjusting the content of adhesive and the degree of sintering / when using 3D printing, the selected metal powder composition and structure model can be adjusted to achieve the outlet rate of the flotation block. The other surfaces of the porous outlet block are sealed and protected by an outer frame, and only the outlet surface is exposed. The air flow is distributed through the airway and the cavity equalization pressure is set to achieve the air flotation function.

[0034] Due to the porous and breathable characteristics of the porous air outlet block, it is suitable for the flotation block, which can distribute air evenly and has no hidden dangers of aging and powder loss. At the same time, it can be used in a highly clean production environment, so that the flotation block can work highly stably, which is conducive to the promotion and application of large-scale flotation devices, greatly reducing maintenance costs and improving production efficiency.

[0035] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A flat porous air flotation block device, characterized in that: It comprises an air flotation block outer frame (1) and a porous air outlet block (2), wherein the porous air outlet block (2) has uniformly dense air holes, the air flotation block outer frame (1) is arranged outside the porous air outlet block (2), a groove matching the porous air outlet block (2) is arranged at the bottom of the air flotation block outer frame (1), the porous air outlet block (2) is arranged in the groove, and the bottom surface of the air flotation block outer frame (1) is flush with the bottom surface of the porous air outlet block (2); A cavity is provided between the air flotation block outer frame (1) and the porous air outlet block (2); uniformly distributed air channels (6) are provided on the inner surfaces of the air flotation block outer frame (1) and the porous air outlet block (2) facing each other; one end of the air channel (6) is connected to an air inlet (11); the air inlet (11) is arranged on the side of the air flotation block outer frame (1); the other end of the air channel (6) is connected to the porous air outlet block (2); air is discharged through the air holes of the porous air outlet block (2), thereby realizing an air flotation function.

2. A flat porous air flotation block device according to claim 1, characterized in that: The air passage (6) comprises at least one group of U-shaped air passages, and each group of U-shaped air passages is connected to the air inlet (11) via an air inlet channel (7).

3. A flat porous air flotation block device according to claim 1, characterized in that: The porous gas outlet block (2) is a powder metallurgy block.

4. A flat porous air flotation block device according to claim 1, characterized in that: The porous air outlet block (2) is a 3D printed block.

5. A flat porous air flotation block device according to claim 1, characterized in that: A ball seat is provided at the center of the top surface of the air flotation block outer frame (1), and the ball head end of the ball head screw (3) is connected via the ball seat.

6. A flat porous air flotation block device according to claim 5, characterized in that: A screw stopper (4) is sleeved on the outside of the ball head end of the ball head screw (3), and the screw stopper (4) is fixed on the top surface of the air flotation block outer frame (1).

7. A flat porous air flotation block device according to claim 5, characterized in that: The ball screw (3) is provided with a nut (5) for fastening.

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