CN110876248A - Lower aluminum alloy section for sealing plate plug-in type chassis frame - Google Patents

Abstract

The invention discloses a lower aluminum alloy section for a sealing plate plug-in chassis frame, which is an aluminum alloy section with an irregular cross section shape, a trapezoidal groove and a bridge cut-off opening, and is formed by extrusion molding of an aluminum alloy material. The fastener for external fixation and connection is arranged at the trapezoidal groove and the bridge cut-off opening, the section bar and the external connection sealing plate are not required to be fixed by punching, the surface of the section bar can be simply treated and regenerated, the invention is more environment-friendly, the production process is simple, and the like.

Description

Lower aluminum alloy section for sealing plate plug-in type chassis frame

Technical Field

The invention belongs to the field of electrical and communication equipment shells, relates to a section bar for a frame structure assembled small-sized case, and particularly relates to a lower aluminum alloy section bar for a sealing plate insertion type case frame.

Background

For a small-sized case shell in the current market, a framework section bar is not generally adopted as a frame, and the production process generally comprises the following steps: firstly, cutting and blanking a cold rolled carbon steel plate sheet with certain length, width and thickness by using a large-scale numerical control punch press or laser according to a bending expansion diagram; secondly, folding the box into a bottom frame, a door plate, an installation plate and an installation support of the box by using precision bending equipment; thirdly, connecting the bent gaps; fourthly, polishing welding spots; fifthly, cleaning, surface repairing, polishing, phosphorus washing, drying, protecting plug holes, electrostatic spraying, curing and drying; sixthly, assembling and forming related accessories such as the bottom frame, the door plate, the mounting bracket and the like. The production process has the advantages that: the chassis shell is not provided with a section bar framework, holes can be punched in the hole sites for installing external elements during blanking, and the chassis shell with any shape and size can be customized according to requirements. The disadvantages are that: the lack of the framework results in insufficient strength of the bottom frame, the door panel, the mounting plate and the mounting bracket; large-scale production equipment is needed, and the technical requirement in the production process is high; each product is a customized product, standard production cannot be realized, and the principle of large-scale batch production of industrial products is not met; the mounting hole of the external element is fixed, and flexible fixation cannot be realized.

An authorized bulletin number of CN 103974549B and an authorized bulletin date of 2019.03.15, which are published by Wei-Tu electronic mechanical technology (Shanghai) Limited company, disclose a section bar for a cabinet frame, wherein the section bar for the cabinet frame is a section bar formed by cold rolling a carbon steel plate, and the production process of the section bar generally comprises the following steps: firstly, leveling a cold rolled carbon steel plate coil stock; secondly, punching module mounting holes with standard intervals by using a continuous punching die; step three, gradually cold-bending and forming by cold-bending equipment; fourthly, cutting the steel plate into a certain length; fifthly, cutting the blank into required lengths according to requirements; and sixthly, cleaning, surface repairing, polishing, phosphorus washing, drying, protecting plug holes, electrostatic spraying, curing and drying. The section bar has the advantages that: mounting holes are formed in the sectional materials, the sectional materials can be connected in a screwing mode, a riveting mode and the like to assemble a cabinet frame, and related accessories outside the cabinet, such as door panels, side plates and the like, can be fixed and mounted on the sectional materials through the mounting holes in the sectional materials. The disadvantages are that: firstly, large-scale precise cold bending equipment is involved in the production process, one cold bending production line can only produce one section, and at least twelve bending steps are carried out, so that the requirements on the technology and the precision of the production process are high; secondly, the standard modular mounting holes are equidistant, so that elements and related accessories cannot be mounted or fixed in the space between the standard modular mounting holes and the holes, and the flexible assembly in the true sense cannot be completed; thirdly, the door plate, the side plate and the external related accessories of the door plate and the side plate are required to be punched to correspond to the standard modular hole site in the section bar, and the door plate, the side plate and the external related accessories are required to be matched well, so that the difficulty coefficient related to the precision in the production process is increased; fourthly, the bending radius of the bending part of the cold-bending section bar, and the bolt connection and riveting holes of the section bar, an external door panel, a side plate and external related accessories all increase the difficulty coefficient for solving the problem of protection grade; fifthly, the sectional area of the sectional material is large due to the thickness and the bending radius of the sectional material, and the sectional material can be used only in a large cabinet.

According to the search, no section bar for the small cabinet, in particular an aluminum alloy section bar for the frame of the small cabinet is found in the market at present.

Disclosure of Invention

The invention aims to provide a lower aluminum alloy section for a sealing plate insertion type chassis frame, which solves the problem that the prior art does not have the aluminum alloy section for a small chassis frame.

In order to solve the technical problems, the invention adopts the technical scheme that:

a lower aluminum alloy section for a seal plate plug-in type chassis frame is an aluminum alloy section which is formed by extrusion molding of aluminum alloy materials, has an irregular cross section and is provided with a trapezoidal groove and a bridge cut-off opening, and comprises a first display surface, a first corrugated surface, a second corrugated surface, a first bridge cut-off surface, a second bridge cut-off surface, an inner surface, a third corrugated surface, a fourth corrugated surface and a second display surface. The first corrugated surface and the second corrugated surface form a first U-shaped groove, the first broken bridge surface and the second broken bridge surface are arranged on the same plane and form a broken bridge opening, a trapezoid groove is formed in the broken bridge opening, the third corrugated surface and the fourth corrugated surface form a second U-shaped groove, and a cavity is formed in the lower aluminum alloy section for the sealing plate plug-in type chassis frame.

The lower aluminum alloy section for the seal plate plug-in type chassis frame is an aluminum alloy section which is formed by extrusion molding of an aluminum alloy material and is provided with a trapezoidal groove and a bridge cut-off opening, and the section with the irregular cross section increases the anti-twisting strength of the section.

The first display surface and the second display surface are flat surfaces and are appearance decorative surfaces, and the surfaces are not machined.

First U-shaped groove and second U-shaped groove for the shrouding insertion groove to fill the special structure of curtain and glue or install waterproof sealing strip additional in the assembling process, reach IP level sealed, have fine waterproof dustproof performance, and the quick-witted case of assembling by this kind of section bar uses under the circumstances that the environment is extremely poor, also can provide fine barrier propterty to installing in quick-witted incasement portion's component and equipment.

The first bridge-breaking surface and the second bridge-breaking surface are arranged on a plane and form a bridge-breaking opening for screws to pass through to connect the inner fastener and the outer fastener or fix related elements.

The trapezoidal groove is used for placing and hiding the fastener and can move at any position in the length direction of the trapezoidal groove, so that the aim of flexibly adjusting the fixed position is fulfilled.

The fold surface is provided with a plurality of barb folds with inward openings, so that the outer sealing plate and the waterproof sealing piece can be prevented from moving outwards, and the moving resistance of the outer sealing plate and the waterproof sealing piece is increased.

The cavity is arranged in the section bar so as to reduce the weight of the section bar in cross section and unit length.

By adopting the structure and the technology, compared with the prior art, the invention has the following beneficial effects:

compared with the prior art that blanking, bending and welding processes are needed for a bottom frame, a door panel, a mounting plate and a mounting support, punching, bending and welding are not needed for connecting the sealing plates, the sealing plates are directly inserted into chamfered anti-skidding U-shaped grooves of the sectional materials and filled with structural adhesive, the connecting between the sectional materials is realized by corner fittings, the sealing plates are firmly supported on the sectional materials from inside to outside by sealing plate fasteners, and all the fittings are fixed on trapezoidal grooves in the sectional materials.

Compared with the prior art that blanking, bending and welding processes are needed for the bottom frame, the door plate, the mounting plate and the mounting bracket, the invention belongs to product customization and can not be produced in standardized batches. The invention can accurately cut the section bars with corresponding sizes according to the size of the case sealing plate, and then the section bars and the sealing plate are assembled into the case through a plurality of simple fasteners, thereby achieving the effect of both batch production and customized small-scale production.

Compared with the cold rolled carbon steel plate cold bent section bar in the prior art, the fixing piece and the element of the cold rolled carbon steel plate cold bent section bar are arranged on the standard modulus mounting hole. All the mounting and fixing pieces are mounted on the trapezoidal groove and the bridge cut-off opening, punching is not needed, and the mounting positions of the fasteners and related accessories can be flexibly adjusted at will according to requirements. The method has the advantages of no need of any working procedures such as drilling and tapping after cutting and blanking, good protection on the section, few processing procedures, simple processing technology, less pollution generated in the processing process and short production period.

Compared with the cold-rolled carbon steel plate cold-bent section in the prior art, the thickness, the bending radius and the die of the cold-bent section limit the size of the section, but the section is formed by extrusion molding of aluminum alloy, is not limited by the thickness and the bending radius of the material, and can be arbitrarily extruded into a required shape and size, so that the section of the section is smaller; furthermore, the density of the aluminum alloy is usually 2.7g/cm in dry-rolled carbon steel plate, while the density of the cold-rolled carbon steel plate of the cold-bent section is usually 7.9g/cm in dry-rolled steel, the section is small in sectional area, low in density and simple in processing technology, so that the section is lower in cost.

Fifthly, the section material is aluminum alloy which has the characteristics of corrosion resistance, pollution resistance, oxidation resistance and the like, and can be simply treated and recycled, so that the section material is more environment-friendly.

The profile does not need any processing procedure except for cutting length, the trapezoidal groove and the bridge cut-off opening are connected and fastened with the outside through the fastening piece, the size of the fastening piece is small, the processing is more convenient, the cost is lower compared with the processing of the whole profile, and the precision can be better ensured.

Drawings

FIG. 1 is a cross-sectional view of a profile of the present invention;

FIG. 2 is a first isometric view of the present invention;

FIG. 3 is a second isometric view of the present invention;

FIG. 4 is a schematic view of the assembly of sealant and sealing plate for filling a curtain wall structure according to the present invention;

FIG. 5 is a schematic view of the seal and seal plate assembly of the present invention;

FIG. 6 is an exploded view of the present invention shown in connection with a corner fitting;

fig. 7 is an assembly view of the present invention after attachment to a corner fitting.

Wherein: 1. a first display surface; 2. a first corrugated surface; 3. a second corrugated surface; 4. a first broken bridge deck; 5. a second broken bridge deck; 6. an inner face; 7. a third corrugated surface; 8. a fourth pleated surface; 9. a second display surface.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Examples

As shown in fig. 1, a lower aluminum alloy profile for a plate sealing plug-in chassis frame is an aluminum alloy profile which is formed by extrusion molding of an aluminum alloy material and has an irregular cross section and a trapezoidal groove and a bridge cut-off opening, and comprises a first display surface 1, a first corrugated surface 2, a second corrugated surface 3, a first bridge cut-off surface 4, a second bridge cut-off surface 5, an inner surface 6, a third corrugated surface 7, a fourth corrugated surface 8 and a second display surface 9, wherein the first corrugated surface 2 and the second corrugated surface 3 form a first U-shaped groove, the first bridge cut-off surface 4 and the second bridge cut-off surface 5 form a bridge cut-off opening on one plane, the bridge cut-off opening is internally provided with a trapezoidal groove, the third corrugated surface 7 and the fourth corrugated surface 8 form a second U-shaped groove, and a cavity is arranged inside the lower aluminum alloy profile for the plate sealing plug-in chassis frame.

As shown in fig. 1, the lower aluminum alloy section for the closing plate plug-in chassis frame is an aluminum alloy section which is formed by extrusion molding of an aluminum alloy material and has an irregular cross section and a trapezoidal groove and a bridge cut-off opening, and the irregular cross section increases the torsion resistance of the section.

As shown in fig. 2, the first display surface and the second display surface are flat surfaces and are appearance decorative surfaces, which are not machined, so as to protect the appearance of the case assembled by the profile from being complete and beautiful.

As shown in fig. 4, the first U-shaped groove and the second U-shaped groove are used for inserting the closing plate into the groove, and the structural adhesive is filled or the waterproof sealing strip is additionally installed in the assembling process, so that the IP-level sealing is achieved, the waterproof and dustproof performance is good, and the case assembled by the section material is used under the condition of extremely poor environment, and the protective performance is good for elements and equipment installed inside the case.

First U type groove and second U type groove supply outside shrouding to insert wherein, the shrouding only need insert need not to bend, and withhold the shrouding from the inside shrouding mounting that adds of case and can reach fixed effect, moreover the section bar cross-section is irregular shape, has guaranteed the bulk strength of case.

The first bridge-cut surface 4 and the second bridge-cut surface 5 are arranged on a plane and form a bridge-cut opening for screws to penetrate through and connect the internal and external fasteners or fix related elements, and the connection between profiles is completed through corner pieces so as to assemble the chassis frame.

As shown in fig. 6 and 7, the trapezoidal groove is used for placing a fastener, a corner fitting or a fixing nut of component equipment installed in the chassis, and can move at any position along the length direction of the trapezoidal groove, so that the purpose of flexibly adjusting the fixing position is achieved.

The trapezoidal groove and the bridge cut-off opening face towards the inner side of the section bar, and the section bar and the internally-installed beam section bar can be conveniently connected and fixed in a matched mode. And all the fixing pieces are fixed from the inside by the trapezoid grooves and the bridge cut-off openings, so that the assembled and molded case cabinet has good protection performance.

The fold face has a plurality of inward barb folds of opening, can prevent outside shrouding and waterproof sealing member outwards to move, increases its resistance that moves, has also increased the anti distortion intensity of fold face simultaneously.

The hollow cavity is arranged in the section bar, so that the weight of the section bar in cross section and unit length is reduced.

Claims (7)

1. The utility model provides a shrouding plug-in machine case lower part aluminum alloy ex-trusions for frame which characterized in that: the lower aluminum alloy section for the sealing plate plug-in type chassis frame is an aluminum alloy section which is formed by extrusion of aluminum alloy materials, has an irregular cross section and is provided with a trapezoidal groove and a bridge cut-off opening, and comprises a first display surface, a first corrugated surface, a second corrugated surface, a first bridge cut-off surface, a second bridge cut-off surface, an inner surface, a third corrugated surface, a fourth corrugated surface and a second display surface, wherein the first corrugated surface and the second corrugated surface form a first U-shaped groove, the first bridge cut-off surface and the second bridge cut-off surface are arranged on the same plane and form a bridge cut-off opening, the bridge cut-off opening is internally provided with the trapezoidal groove, the third corrugated surface and the fourth corrugated surface form a second U-shaped groove, and a cavity is formed inside the lower aluminum alloy section for the sealing plate plug-in type chassis frame.

2. A lower aluminum alloy profile for a shrouding plug-in chassis frame according to claim 1, wherein said profile is an aluminum alloy profile extruded from an aluminum alloy material and having an irregular cross-section with a trapezoidal groove and a bridge cut-off.

3. A lower aluminum alloy profile for a shrouding plug-in chassis frame according to claim 1, wherein said first display surface and said second display surface are flat surfaces and are appearance decorative surfaces.

4. A lower aluminum alloy profile for a shrouding plug-in chassis frame according to claim 1, wherein the first U-shaped groove and the second U-shaped groove are shrouding insertion grooves, and are filled with structural glue for curtain walls or are provided with waterproof sealing strips during assembly.

5. A lower aluminum alloy section for a shrouding plug-in chassis frame according to claim 1, wherein said first bridge deck and said second bridge deck are planar and define a bridge cut-out for screws to pass through to connect said inner and outer fasteners.

6. A lower aluminum alloy profile for a shrouding plug-in chassis frame according to claim 1, wherein said trapezoidal-shaped groove is used to place and conceal fasteners.

7. A lower aluminum alloy profile for a shrouding plug-in chassis frame according to claim 1, wherein the internal cavity is to reduce the weight per unit length and cross-sectional area of the profile.

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