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Friction stir welding assembling tool for large-scale ellipsoidal workpieces

A technology of friction stir and ellipsoid, which is applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of long weld seam, difficulty in guaranteeing joint surface accuracy, and affecting the quality of friction stir welding seam, so as to improve production efficiency , Improve the accuracy, ensure the effect of welding strength and welding stability

Active Publication Date: 2018-04-20
SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the splicing of large ellipsoidal workpieces, the weld seam belongs to the space curve, and the weld seam is long, and the accuracy of the butt joint surface is difficult to guarantee, which affects the quality of the friction stir welding seam

Method used

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  • Friction stir welding assembling tool for large-scale ellipsoidal workpieces
  • Friction stir welding assembling tool for large-scale ellipsoidal workpieces
  • Friction stir welding assembling tool for large-scale ellipsoidal workpieces

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, the large-scale ellipsoidal workpiece 1 is a part of the ellipsoidal body of revolution, and the two workpieces are as figure 1 As shown in the splicing, the position of the butt joint surface 2 of the weld seam is shown in the figure, and a total of 8 workpieces can be welded into an ellipsoidal body of revolution.

[0029] refer to figure 2 and image 3 as shown, image 3 It is a tooling structure diagram after removing the lifting mold tire 5, the adjustment mec...

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Abstract

The invention provides a friction stir welding assembling tool for large-scale ellipsoidal workpieces. The friction stir welding assembling tool comprises a fixing base, a lifting die bed, adjusting mechanisms, mechanical pressing strips and lifting mechanisms, wherein the workpieces are attached to the lifting die bed, the positions of the workpieces on the lifting die bed are adjusted through the adjusting mechanisms fixed to the lifting die bed; the two ends of the mechanical pressing strips are fixed to the lifting die bed; each lifting mechanism comprises limiting stop blocks, a hydrauliccylinder, guide shafts and a hydraulic cylinder base, wherein the multiple guide shafts are fixedly arranged on the hydraulic cylinder base through threads, the hydraulic cylinder is fixed in the middle of the hydraulic cylinder base through threads, and the limiting stop blocks are arranged on the hydraulic cylinder base; a plurality of guide holes and a threaded hole are machined in the bottomof the lifting die bed and are connected to the guide shafts and the push rods of the hydraulic cylinders correspondingly; each adjusting mechanism consists of an adjusting base and an adjusting screw; and the positions of the workpieces can be finely adjusted by rotating the adjusting screws. According to the friction stir welding assembling tool, the friction stir welding production efficiency of the large-scale ellipsoidal workpieces can be improved, and in-situ edge milling and welding can be realized.

Description

technical field [0001] The invention relates to the field of welding engineering, in particular to a friction stir welding splicing method and assembly tooling for large ellipsoidal workpieces. Background technique [0002] Friction Stir Welding (Friction Stir Welding referred to as FSW) is an invention patent proposed by the British Welding Institute (TWI) in October 1991. The friction stir welding process was initially mainly used to solve the welding of low-melting point materials such as aluminum alloys. TWI has conducted more research on the characteristics and applications of the friction stir welding process. [0003] For the friction stir welding process, there are certain requirements for the butt joint surface of the workpiece before welding. Generally, the maximum gap between the butt joint surfaces is not greater than 0.2mm, and the maximum misalignment gap is not greater than 0.2mm. For the splicing of large ellipsoidal workpieces, the weld seam belongs to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/26B23K20/12B23K37/04B23Q3/00
CPCB23K20/126B23Q3/00B23Q2703/10
Inventor 王宇晗王国庆毕庆贞
Owner SHANGHAI TOPNC NUMERICAL CONTROL TECH CO LTD
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