CN201500861U

CN201500861U - Embedded welding structure of thin-walled aluminum alloy chassis

Info

Publication number: CN201500861U
Application number: CN 200920087297
Authority: CN
Inventors: 杨兵论; 蒋方平; 陈京会
Original assignee: 709th Research Institute of CSIC
Current assignee: 709th Research Institute of CSIC
Priority date: 2009-07-13
Filing date: 2009-07-13
Publication date: 2010-06-09
Anticipated expiration: 2019-07-13

Abstract

The utility model provides an embedded welding structure of a thin-walled aluminum alloy chassis, which comprises an aluminum plate A, an aluminum plate B, an aluminum plate C and an aluminum plate D. The two ends of the aluminum plate A, the aluminum plate B, the aluminum plate C and the aluminum plate D are respectively provided with a convex head (1) and a concave head (2), each aluminum plate is embedded, butted and positioned through the convex head (1) and the concave head (2), one side of the convex head (1) and the concave head (2) is provided with a weld groove (3), a weld is welded on the weld groove (3), and the whole weld is a solid curve. The utility model has the advantages that: the utility model solves the technical problem of difficult control of the cavity sizes caused by the cooling shrinkage of the welded original chassis; with the embedded and butted structure, the connecting positions of the aluminum plates and the aluminum plate connectors can be easily positioned during the welding and clamping, thereby improving the welding efficiency; since the linear weld is changed into the curved weld, the length of the weld is increased, thereby improving the chassis welding strength; almost no cooling shrinkage can occur after welding; and based on the demonstration in practice, the cavity size of the chassis welded through the structure is almost consistent with the size of the controlled part structure, and the shrinkage amount can be controlled within minus 0.03mm to minus 0.05mm.

Description

A kind of embedding Welding Structure of thin-wall aluminum alloy cabinet

Technical field

The utility model relates to the cabinet technical field, a kind of specifically embedding Welding Structure of thin-wall aluminum alloy cabinet.

Background technology

The thin-wall aluminum alloy cabinet is meant that casing thickness is the casing of the aluminium sheet welding of 4mm-8mm.The argon arc welding connection technology is adopted in the aluminium sheet of thin-wall aluminum alloy cabinet and the junction of aluminium sheet, adopts direct docking structure between the aluminium sheet joint, and promptly weld seam is a form of straight lines.Directly the joint of docking structure has required weld groove, wherein aluminium sheet A, C are wrapped by aluminium sheet B, D, inner chamber bd size is owing to A, the thin temperature distortion in C aluminium sheet weld groove place, cool off back bd dimensional contraction scope to reach-0.20mm～-0.6mm, aluminium sheet and aluminium sheet joint junction are difficult for the location when welding clamping simultaneously, also cause the human error of size ac.

The shortcoming of the direct butt joint of this straight bead is: 1. the bad control of cabinets cavity dimensional accuracy; 2. aluminium sheet and aluminium sheet joint junction are difficult for the location when welding clamping.

The utility model content

The purpose of this utility model is that the precision of a kind of cabinet inner cavity size of design can effectively be controlled, the embedding Welding Structure that aluminium sheet docks the thin-wall aluminum alloy cabinet that is very easy to the location when making the welding clamping simultaneously with the aluminium sheet joint.

The embedding Welding Structure of a kind of thin-wall aluminum alloy cabinet of the utility model, comprise: A, B, C, D aluminium sheet two ends are processed with convex-concave 1,2, each aluminium sheet utilizes convex-concave 1,2 a mutual butt joint location that embed, one side of convex-concave 1,2 has weld groove 3, weld groove 3 is welded with weld seam, and whole welding line is a solid curve.

The degree of depth of weld groove 3 is 1/2～2/3 of an aluminium plate thickness.

The welded advantage of embedding of a kind of thin-wall aluminum alloy cabinet of the utility model is: solved original cabinet welding back cooling contraction and made the uppity technical barrier of inner cavity size; Owing to embed butt joint mutually, aluminium sheet and aluminium sheet joint junction are very easy to the location when making the welding clamping, have improved welding efficiency; Straight bead is converted to curved welding seam, makes fusion length obtain increase, has improved the weld strength of cabinet; Produce the cooling shrinkage phenomenon after the welding hardly; Through practical proof, it is almost consistent to use the size that cabinet inner cavity size that this structure welds out and design of part control, and amount of contraction can be controlled at-0.03mm～-0.05mm.

Description of drawings

Fig. 1 is the welded assembling schematic diagram of a kind of embedding of thin-wall aluminum alloy cabinet.

Fig. 2 is the schematic diagram of junction surface weld groove.

The specific embodiment

According to Fig. 1, shown in Figure 2, a kind of embedding Welding Structure of thin-wall aluminum alloy cabinet, comprise: during the aluminium sheet Element Design, the total length of each piece aluminium sheet is the cabinet length on its place cabinet direction, length ac between recess and the recess, bd are the inner cavity size on its place cabinet direction, the height of plush copper and recess is got the 3-5 five equilibrium of cabinet height h, symmetry that can not five equilibrium rounds, the degree of depth of weld groove is 1/2～2/3 of an aluminium sheet sheet metal thickness, after part processing is good, get final product by the traditional frock welding of usefulness shown in Figure 1.

Claims

1. the embedding Welding Structure of a thin-wall aluminum alloy cabinet, it is characterized in that: comprising: A, B, C, D aluminium sheet two ends are processed with convex-concave head (1), (2), each aluminium sheet utilizes convex-concave head (1), (2) to embed the butt joint location mutually, one side of convex-concave head (1), (2) has weld groove (3), weld groove (3) is welded with weld seam, and whole welding line is a solid curve.

2. the embedding Welding Structure of a kind of thin-wall aluminum alloy cabinet according to claim 1 is characterized in that: the degree of depth of weld groove (3) is 1/2～2/3 of an aluminium plate thickness.