• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention provides a new device for friction stirring welding of dissimilar tubular structures, mainly including an inner tray (1), an inner tray shaft (2), a bearing I (3), a bearing II (4), a stirring head (5) and a stirring head fixing circular frame (6). The inner tray (1) is mounted on the inner tray shaft (2), both ends of the inner tray shaft (2) are respectively mounted on the bearing I (3) and the bearing II (4), and the inner tray shaft (2) is driven to rotate by a driving device. An outer surface of the inner tray (1) and an inner surface of an inner tube (7) to be welded contact each other. The stirring head (5) is squeezed in from a surface of an outer tube (8) to perform friction stirring welding. The stirring head (5) is fixed on the stirring head fixing circular frame (6), the stirring head fixing circular frame (6) is perpendicular to the inner tray shaft (2), and the stirring head fixing circular frame (6) rotates about an axis of the inner tray shaft (2). The stirring head (5) rotates synchronously with the stirring head fixing circular frame (6). The present invention can realize rapid welding of lightweight alloy tube joints, has reliable welding quality, high efficiency and low cost, and is easy to popularize and apply.
    公开号:NL2024552A
    申请号:NL2024552
    申请日:2019-12-21
    公开日:2020-08-19
    发明作者:Wang Hongfeng；Liu Shengrong；Song Weiwei；Ge Xiaole；Pu Jaifei
    申请人:Univ Huangshan；
    IPC主号:
    专利说明:

    1 AO 19.12.1079 NL New device for friction stirring welding of dissimilar tubular structures Background
    TECHNICAL FIELD The present invention relates to a friction stirring welding technology, in particular to a friction stirring welding technology of tubular members with different tube diameters, and specifically to a device for friction stirring welding of dissimilar tubular structures.
    RELATED ART In the process of welding tubular structural parts, the welding methods are usually complex and inefficient. Traditional fusion welding is also prone to insufficient welding and waste products. Such tubular welding methods have high requirements on the operator's operation level, and therefore cannot be well popularized. The present invention uses the friction stirring welding technology and a special clamp to easily realize mutual welding of tubular interfaces, has simple welding operation and well guaranteed quality, and therefore is convenient for popularization and application.
    SUMMARY The present invention aims to solve the problems of low welding efficiency of existing tubular products with ditferent tube diameters and easy occurrence of waste products, and design a new device for friction stirring welding of dissimilar tubular structares to be suitable for friction stirring welding of lightweight alloy tube joints. The essence is to realize a superimposed welding method of two kinds of tubes by rotating a worktable and a stirring head in opposite directions to form higher heat. The welding process is stable and the welding quality is good. The technical solution of the present invention is as follows. A new device for friction stirring welding of dissimilar tabular structures mainly includes an inner tray 1, an inner tray shaft 2, a bearing 1 3, a bearing II 4, a stirring head 5 and a stirring head fixing circular frame 6. The inner tray 1 is mounted on the inner tray shaft 2, both ends of the inner tray shaft 2 are respectively mounted on the bearing 13 and the bearing II 4, and the inner tray shaft 2 is driven to rotate by a driving device. An outer surface of the inner tray | and an inner surface of an inner tube 7 to be
    2 AO 19.12.1079 NL welded contact each other. The stirring head 5 is squeezed in from a surface of an outer tabe 8 to perform friction stirring welding. The stirring head 5 is fixed on the stirring head fixing circular frame 6, the stirring head fixing circular frame 6 is perpendicular to the inner tray shaft 2, and the stirring head fixing circular frame 6 rotates about an axis of the inner tray shaft 2. The stirring head 5 rotates synchronously with the stirring head fixing circular frame 6. A central hole 1-1 for mounting the inner tray shaft 2 is formed in the inner tray 1. A surface of the inner tray is mainly composed of three layers: an iron base material layer 1-2 on an inside, an elastic layer 1-3 in a middle, and a canvas layer 1-4 on an outside.
    When the stirring head 5 performs friction stirring welding on the inner tube 7 and the outer tube 8, a rotation direction of the stirring head 5 with the stirring head fixing circular frame 6 is opposite to a rotation direction of the inner tray 1, and a rotation speed of the inner tray 1 is 50 or more times of a forward speed of the stirring head 5. A material of the inner tube 7 and a material of the outer tube 8 may be lightweight alloy. Beneficial effects of the present invention: the present invention can realize rapid welding of lightweight alloy tube joints, has reliable welding quality, high efficiency and low cost, and is easy to popularize and apply.
    BRIEF DESCRIPTION OF DRAWINGS Fig. 1 is a schematic view of a new device for friction stirring welding of dissimilar tubular structures. Fig. 2 is a structural view of an inner tray.
    DETAILED DESCRIPTION The application of the present invention will be specifically described below with reference to the drawings.
    3 AO 19.12.1079 NL As shown in Figs. 1-2: a new device for friction stirring welding of dissimilar tubular structures mainly includes an inner tray 1, an inner tray shaft 2, a bearing I 3, a bearing II 4, a stirring head 5 and a stirring head fixing circular frame 6, as shown in Fig. 1. A central hole 1-1 for mounting the inner tray shaft 2 is formed in the inner tray 1. As shown in Fig. 2, a surface of the inner tray is mainly composed of three layers: an iron base material layer 1-2 on an inside, an elastic layer 1-3 in a middle, and a canvas layer 1-4 on an outside, and the canvas layer 1-4 contacts an inner surface of an inner tube 7. The inner tray 1 is mounted on the inner tray shaft 2, both ends of the inner tray shaft 2 are respectively mounted on the bearing I 3 and the bearing II 4, and the inner tray shaft 2 is driven to rotate by a driving device {can be driven directly by a variable frequency speed regulating motor or composed of a motor acceleration and deceleration device). An outer surface of the inner tray 1 and the inner surface of the inner tube 7 to be welded contact each other.
    The stirring head 5 is squeezed in from a surface of an outer tube 8 to perform friction stirring welding.
    A material of the inner tube 7 and a material of the outer tube 8 may be lightweight alloy.
    The stirring head 5 is fixed on the stirring head fixing circular frame 6, the stirring head fixing circular frame 6 is perpendicular to the inner tray shaft 2, and the stirring head fixing circular frame 6 rotates about an axis of the inner tray shaft 2 (or point O in Fig. 1. which is an intersection point of a shaft axis of the inner tray shaft 2 and an axial center plane of the inner tray 1). The stirring head 5 rotates synchronously with the stirring head fixing circular frame 6. When the stirring head 5 performs friction stirring welding on the inner tube 7 and the outer tube 8, a rotation direction of the stirring head 5 with the stirring head fixing circular frame 6 is opposite to a rotation direction of the inner tray 1, and a rotation speed of the inner tray I is 50 or more times of a forward speed (rotating speed) of the stirring head 5. The parts not described in the present invention are the same as or can be implemented by using the prior art.
    权利要求:
    Claims (4)
    [1]
    A new device for friction stir welding of dissimilar tubular structures, in particular consisting of an inner box (1), an inner box shaft (2), a bearing [(3), a bearing II (4), a stirring head (5) and a stirring head attaching a circular frame (6), with the inner box (1) mounted on the inner box shaft (2), both ends of the inner box shaft (2) on the bearing I (3) and the bearing II (4) respectively are mounted, and the inner box shaft (2) is driven to rotate by a driving device; wherein an outer surface of the inner box (1) and an inner surface of an inner tube (7) to be welded come into contact with each other; wherein the stirring head (5) is pushed out of a surface of an outer tube (8) to perform friction stir welding; wherein the rudder head (5) is mounted on the rudder head securing the circular frame (6), the rudder head securing the circular frame (6) is perpendicular to the inner vessel shaft (2) and the rudder head securing the circular frame (6) mounted about an axis of the inner box shaft (2) rotates; and the agitator head (5) rotates in synchronism with the agitator head securing the circular frame (6).
    [2]
    A novel friction stir welding device for dissimilar tubular structures according to claim 1, wherein a central hole (1-1) for mounting the inner box shaft (2) is formed in the inner box (1); and a surface of the inner box is typically three layers: an iron base material layer (1-2) on the inside, an elastic layer (1-3) in the middle and a canvas layer (1-4) on an outside.
    [3]
    A novel friction stir welding apparatus for dissimilar tubular structures according to claim 1, wherein when the stirring head (5) performs friction stir welding on the inner tube (7) and the outer tube (8), a direction of rotation of the stirring head (5) with the stirring head is circular frame (6) mounts opposite to a direction of rotation of the inner box (1), and wherein a rotational speed of the inner box (1) is 50 or more times a forward speed of the agitator head (5).
    [4]
    A novel device for friction stir welding of dissimilar tubular structures according to claim 1, wherein a material of the inner tube (7) and a material of the outer tube (8) may be a lightweight alloy.
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    同族专利:
    公开号 | 公开日
    CN109570741A|2019-04-05|
    NL2024552B1|2020-08-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6259052B1|1998-12-18|2001-07-10|The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration|Orbital friction stir weld system|
    CN105127580A|2015-09-01|2015-12-09|姜海|Compound sealing device for ends of thin-wall stainless steel pipe and sealing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910111770.6A|CN109570741A|2019-02-12|2019-02-12|A kind of new equipment for Friction Stir Welding xenogenesis tubular structure|
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