CN113382586A

CN113382586A - Special-shaped thin-wall aluminum alloy equipment control box

Info

Publication number: CN113382586A
Application number: CN202110698619.4A
Authority: CN
Inventors: 李华; 蒋馨; 彭野; 罗明怀; 王刚; 任磊
Original assignee: Guizhou Aerospace Nanhai Technology Co Ltd
Current assignee: Guizhou Aerospace Nanhai Technology Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-09-10

Abstract

The invention provides a special-shaped thin-wall aluminum alloy equipment control box which comprises side plates, a bottom plate, a top plate, a front plate and a back plate, wherein the side plates are arranged on the bottom plate; the side plates, the bottom plate, the top plate, the front plate and the back plate are respectively assembled into a frame body from six rectangular spaces, and every two adjacent surfaces are connected and fixed through corner pieces; the corner fitting is in a bent plate shape, and bolts penetrate through and are fixed on two surfaces of the corner fitting. The invention not only meets the appearance quality, but also meets the structural strength requirement, and has light weight and convenient installation and operation; the connecting difficult problem of the special-shaped thin-wall aluminum alloy equipment control box body structure can be effectively solved, welding deformation is avoided, the connecting strength among aluminum alloy parts of the box body is improved, the safety and the reliability of a product are improved, the cost is further reduced, and the overall product quality and the box body appearance quality are improved.

Description

Special-shaped thin-wall aluminum alloy equipment control box

Technical Field

The invention relates to a special-shaped thin-wall aluminum alloy equipment control box.

Background

The control box of the vehicle-mounted electromechanical equipment is limited by the load of a vehicle, so that the control box is required to be light in weight, and in addition, the equipment in the control box is numerous, different in size and shape, meets the requirements of human engineering and the space limitation in the vehicle, the special-shaped and thin-walled structure becomes the remarkable characteristic of the control box of the vehicle-mounted equipment, and the aluminum alloy which is light in weight, high in strength and low in cost is the preferred material for the structure of the control box of the vehicle-mounted equipment. However, the connection between thin-wall and special-shaped aluminum alloy structural members is always a big problem in the industry for the following reasons:

1. the components are in threaded connection through the through holes, the strength requirement can be basically met, but the bolts are exposed, the appearance quality is seriously influenced, and the appearance quality is undoubtedly the first law of product competition in the modern market with intense competition;

2. the components are connected by adopting the blind holes in a screwed mode, so that the appearance quality can be met, but the thin-wall screw hole is shallow in depth, the screwing length of the threads is small, and the strength requirement cannot be met;

3. the components are welded, and the deformation is serious when the full weld or the welding seam is too long, so that the appearance and the assembly requirements cannot be met; the strength is low when the welding seam is short and few, and the strength requirement cannot be met;

4. the components are bonded by the adhesive, so that the appearance quality can be met, but the strength requirement cannot be met;

5. the box body is integrally formed by casting, the cost of single-piece and small-batch production is high, the processing difficulty of each mounting surface and appearance is large, and the processing precision cannot meet the requirements of equipment mounting and appearance quality.

Disclosure of Invention

In order to solve the technical problems, the invention provides the special-shaped thin-wall aluminum alloy equipment control box which not only meets the appearance quality, but also meets the structural strength requirement and is light in weight.

The invention is realized by the following technical scheme.

The invention provides a special-shaped thin-wall aluminum alloy equipment control box which comprises side plates, a bottom plate, a top plate, a front plate and a back plate, wherein the side plates are arranged on the bottom plate; the side plates, the bottom plate, the top plate, the front plate and the back plate are respectively assembled into a frame body from six rectangular spaces, and every two adjacent surfaces are connected and fixed through corner pieces; the corner fitting is in a bent plate shape, and bolts penetrate through and are fixed on two surfaces of the corner fitting.

The length of the bottom plate is smaller than that of the top plate, and the bottom plate is not in contact with the front plate.

The bottom plate is provided with a support frame which protrudes to form a frame shape.

And the joint positions between every two adjacent surfaces of the side plate, the bottom plate, the top plate, the front plate and the back plate are bonded.

And the corner fittings are fixed by spot welding.

And the joint positions are bonded by adopting a plastic aluminum repairing agent.

Blind holes are formed in the positions, where the bolts penetrate, of the side plates, the bottom plate, the top plate, the front plate and the back plate.

The top plate is covered with a cover plate.

The invention has the beneficial effects that: the appearance quality is met, the structural strength requirement is met, the weight is light, and the installation and the operation are convenient; the connecting difficult problem of the special-shaped thin-wall aluminum alloy equipment control box body structure can be effectively solved, welding deformation is avoided, the connecting strength among aluminum alloy parts of the box body is improved, the safety and the reliability of a product are improved, the cost is further reduced, and the overall product quality and the box body appearance quality are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the self-contained structure of the present invention, with the cover plate not shown for clarity;

fig. 4 is a schematic diagram of the effect of the present invention in use.

In the figure: 1-side plate, 2-bottom plate, 3-top plate, 4-front plate, 5-back plate, 6-corner piece, 7-cover plate and 8-supporting frame.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

Example 1

The special-shaped thin-wall aluminum alloy equipment control box shown in the figure 1 comprises a side plate 1, a bottom plate 2, a top plate 3, a front plate 4 and a back plate 5; the side plates 1, the bottom plate 2, the top plate 3, the front plate 4 and the back plate 5 are respectively assembled into a frame body from six rectangular spaces, and every two adjacent surfaces are connected and fixed through corner pieces 6; the corner fitting 6 is in the shape of a bent plate, and bolts penetrate through and fix two surfaces of the corner fitting.

Example 2

Based on embodiment 1, and the length of the bottom plate 2 is smaller than that of the top plate 3, there is no contact between the bottom plate 2 and the front plate 4.

Example 3

In the embodiment 1, the bottom plate 2 is provided with the frame-shaped support frame 8.

Example 4

Based on embodiment 1, the joint positions between each adjacent two surfaces of the side plate 1, the bottom plate 2, the top plate 3, the front plate 4 and the back plate 5 are bonded.

Example 5

Based on embodiment 1, and the corner fitting 6 is fixed by spot welding.

Example 6

Based on example 4, the seam locations were bonded using a ductile aluminum healant.

Example 7

In embodiment 1, the side plate 1, the bottom plate 2, the top plate 3, the front plate 4, and the back plate 5 have blind holes at bolt insertion positions.

Example 8

The embodiment 1 is based on, and the top plate 3 is covered with a cover plate 7.

Example 9

Based on the above embodiment, as shown in fig. 1 to 4, the steel wire screw comprises a top plate (material thickness 8mm), a bottom plate (material thickness 8mm), a front plate (material thickness 6mm), a rear plate (material thickness 6mm), 4 side plates (material thickness 6mm to 8mm), 13 corner fittings, screws M4 × 10a2-70, screws M4 × 6a2-70, screws M4 × 8a2-70, screws M8 × 12a2-70, and steel wire thread sleeves 4 × 0.7 × 4.

The comprehensive connection and treatment method comprises the steps of blind hole screwing, welding, stress relief, aging, bonding and plastic aluminum repairing agent. The included angles of the 13 corner fittings are set according to the required angles of the two components connected at the positions of the corner fittings, and the corner fittings have the dual functions of a welding clamp and a connecting fastener. The shapes and chamfer sizes of other parts are required to be set according to the spatial positions and functional requirements of the parts.

In order to further meet the structural connection requirement and ensure the realization of the technical requirements of light weight, good appearance quality and high structural strength, the operations of blind hole screwing, welding, bonding and the like are strictly carried out according to the following methods:

1. before connection, GJB119.2A-2001 steel wire thread sleeves 4 multiplied by 0.7 multiplied by 4 are arranged in screw holes of each component;

2. connecting the parts by using corner pieces and screws to form a box body whole;

3. prewelding and shaping the box body, wherein the structural shape and the position size meet the requirements of a drawing;

4. carrying out intermittent welding at proper positions of each joint in the equipment box, wherein the length of the non-injection welding line is not less than 20mm, and the distance between adjacent welding lines of the same joint is not more than 200 mm;

5. all corner pieces need to be subjected to spot welding;

6. the welding needs to be firm, and the shaping, slag removal, weld joint grinding and internal stress removal are carried out after welding;

7. aging treatment;

8. disassembling and assembling screws after the structural state of the equipment box is stable, and coating a loctite adhesive 242 on the thread part;

9. all external joints of the equipment box are filled and leveled by using the plastic aluminum repairing agent.

Claims

1. The utility model provides a dysmorphism thin wall aluminum alloy equipment control box, includes curb plate (1), bottom plate (2), roof (3), front bezel (4), backplate (5), its characterized in that: the side plates (1), the bottom plate (2), the top plate (3), the front plate (4) and the back plate (5) are respectively assembled into a frame body from six rectangular spaces, and every two adjacent surfaces are connected and fixed through corner pieces (6); the corner fitting (6) is in a bent plate shape, and two surfaces of the corner fitting are fixed by bolts.

2. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: the length of the bottom plate (2) is less than that of the top plate (3), and the bottom plate (2) is not in contact with the front plate (4).

3. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: and a support frame (8) which is protruded into a frame shape is arranged on the bottom plate (2).

4. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: and the joint positions between every two adjacent surfaces of the side plate (1), the bottom plate (2), the top plate (3), the front plate (4) and the back plate (5) are bonded.

5. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: the corner fittings (6) are fixed by spot welding.

6. The special-shaped thin-walled aluminum alloy equipment control box of claim 4, wherein: and the joint positions are bonded by adopting a plastic aluminum repairing agent.

7. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: blind holes are formed in the positions, where the bolts penetrate, of the side plates (1), the bottom plate (2), the top plate (3), the front plate (4) and the back plate (5).

8. The special-shaped thin-walled aluminum alloy equipment control box of claim 1, wherein: the top plate (3) is covered with a cover plate (7).