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Welding seam deflection measuring method for tailor-welded blank spinning forming curved surface component

A technology of spinning forming and measuring method, which is applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of lack of research and patents, and achieve the effects of precise measurement, large curvature changes, and improved forming ability and quality

Active Publication Date: 2021-06-04
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the whole, the above research and patents are mainly aimed at cylindrical parts or welding processes, which are essentially different from spinning forming of thin-walled curved components of tailor-welded blanks. The weld deflection measuring frame and Research and patents on its method of use are lacking

Method used

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  • Welding seam deflection measuring method for tailor-welded blank spinning forming curved surface component
  • Welding seam deflection measuring method for tailor-welded blank spinning forming curved surface component
  • Welding seam deflection measuring method for tailor-welded blank spinning forming curved surface component

Examples

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Effect test

Embodiment 1

[0044] This embodiment is a method for measuring the deflection angle of a weld seam through the outer surface of a thin-walled curved member formed by spinning a tailored welded blank.

[0045] The workpiece to be tested is formed by spinning of an aluminum alloy tailor welded blank, and its shape is a hemispherical shell. The bottom of the hemisphere of the tested workpiece has a mounting hole; the diameter of the mouth of the hemisphere of the tested workpiece is the largest, which is 300mm. There is an original welding seam extending from the bottom to the mouth on the curved surface of the measured workpiece, and one end of the original welding seam forms an intersection K with the edge of the mouth.

[0046] The concrete process of this embodiment is:

[0047] Step 1, the assembly of the measuring stand:

[0048] Fix the measuring stand on the work surface.

[0049] Step 2, install the workpiece under test:

[0050] The tailor-welded blank is used as the workpiece to...

Embodiment 2

[0068] This embodiment is a method for measuring the deflection angle of a weld seam through the inner surface of a thin-walled curved member formed by spinning a tailored welded blank.

[0069] The workpiece to be tested is formed by spinning of an aluminum alloy tailor welded blank, and its shape is a hemispherical shell. The bottom of the hemisphere of the tested workpiece has a mounting hole; the diameter of the mouth of the hemisphere of the tested workpiece is the largest, which is 300mm. There is an original welding seam extending from the bottom to the mouth on the curved surface of the measured workpiece, and one end of the original welding seam forms an intersection K with the edge of the mouth.

[0070] The concrete process of this embodiment is:

[0071] Step 1, measuring frame assembly:

[0072] Fix the measuring frame on the workbench.

[0073] Step 2, install the workpiece under test:

[0074] The tailor-welded blank is used as the workpiece to be tested. W...

Embodiment 3

[0092]This embodiment is a measuring frame for realizing the measurement of the deflection angle of the weld seam on the inner surface or the outer surface of the thin-walled curved surface member formed by spinning of the tailored welded blank.

[0093] The shape of the measuring frame is "concave", including a vertical support plate 1, a horizontal fixing rod 2, a horizontal bottom plate 3, a locking screw 4 and a locking screw 5 of the workpiece under test, and a laser level 8 used in conjunction with it .

[0094] The vertical support plate 1 is the supporting connector of the whole device; a horizontal fixing rod 2 is fixed on the upper end of one side surface of the support plate, and a horizontal bottom plate 3 is fixed on the lower end surface. Both the horizontal fixing rod and the horizontal bottom plate are cantilever beam structures.

[0095] The lower end surface of the support plate fixedly connected with the horizontal bottom plate is stepped. And the height o...

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Abstract

The invention discloses a welding seam deflection measuring method for a tailor-welded blank spinning forming curved surface component, and aims to accurately measure a tailor-welded blank thin-wall curved surface component spinning forming welding seam deflection angle, perfect experimental data, obtain important forming quality evaluation indexes, facilitate follow-up process optimization and improvement and improve spinning forming quality and forming limit. According to the measuring frame, accurate measurement of welding seam deflection of the thin-wall curved-surface component formed by spinning of the tailor-welded blank is achieved through the measuring method, operation is easy, efficiency is high, cost is low, accurate measuring result data are provided for measurement of geometric parameters related to the thin-wall curved-surface component formed by spinning of the tailor-welded blank, the problems of large error and inaccurate measurement caused by a measurement mode depending on visual estimation in the prior art are solved, and the accurate measurement of the deflection angle of the welding seam of the thin-wall curved surface component is realized.

Description

technical field [0001] The invention relates to the technical field of spinning forming of thin-walled curved surface components, in particular to a method for measuring the deflection angle of weld seams of thin-walled curved surface components formed by spinning of metal sheet tailored welded blanks. Background technique [0002] Tailored welded blank spinning forming technology is a novel advanced manufacturing technology that welds several metal sheets of the same or different sizes, thicknesses, and materials into a tailor welded blank, and then performs integral spinning. The use of tailor-welded blank spinning forming technology to produce thin-walled curved components has significant advantages: the process tooling and molds are relatively simple, which greatly reduces the number of special process equipment, shortens the production preparation time and cost; compared with the traditional stamping + tailor welding Tailored welded blank spinning forming can overcome t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 詹梅张洪瑞郑泽邦李锐王鑫琪周达科崔笑蕾高鹏飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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