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Positioning mechanism for measuring cross section distortion of metal bent pipe

A technology of positioning mechanism and pipe bending, which is applied in the direction of metal processing, metal processing equipment, workpiece clamping device, etc., can solve the problems of bending pipe section distortion, low precision, high cost, etc., and achieve guaranteed levelness, high positioning accuracy, The effect of structural stability

Pending Publication Date: 2020-02-28
ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the distortion of the curved pipe section can be measured with the help of special equipment such as 3D global coordinate measuring instrument to measure its ellipticity, but the cost is high, and special fixtures need to be designed
Manual positioning measurement can also be used, but the accuracy is not high and the efficiency is low

Method used

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  • Positioning mechanism for measuring cross section distortion of metal bent pipe
  • Positioning mechanism for measuring cross section distortion of metal bent pipe
  • Positioning mechanism for measuring cross section distortion of metal bent pipe

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] A positioning mechanism for measuring cross-sectional distortion of a metal elbow of this embodiment, such as Figure 1-10 As shown, a bottom plate 19 is included. A mounting plane 191 is opened on the bottom plate 19, and an adjusting slider 36 is installed on the mounting plane 191; a lower cover 35 is installed on the adjusting slider 36; A pair of positioning support rods 31 are installed between the adjusting slider 36 and the lower cover plate 35; the upper cover plate 34 is installed on the lower cover plate 35; the lower cover plate 35 and the upper cover plate 34 are also A pair of positioning support rods 31 are installed; a positioning support rod 31 between the adjusting slider 36 and the lower cover 35, a positioning support between the lower cover 35 and the upper cover 34 A positioning top rod 32 is installed between the rods 31, the other positioning support rod 31 between the adjusting slider 36 and the lower cover 35, and the other between the lower cov...

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Abstract

The invention discloses a positioning mechanism for measuring cross section distortion of a metal bent pipe. The positioning mechanism comprises a bottom plate, wherein a mounting plane is formed on the bottom plate, and an adjusting slider is mounted in the mounting plane; a lower cover plate is mounted on the adjusting slider; a pair of positioning support rods are mounted between the adjustingslider and the lower cover plate; an upper cover plate is mounted on the lower cover plate; a pair of positioning support rods are mounted between the lower cover plate and the upper cover plate; a positioning ejector rod is mounted between another positioning support rod located between the adjusting slider and the lower cover plate and another positioning support rod located between the lower cover plate and the upper cover plate; a motor is mounted on the bottom plate and connected with a screw; the screw and an internal threaded hole in a connecting rod are in threaded screw connection; and the connecting rod is connected with the two pairs of positioning support rods. The positioning mechanism is simple to operate, stable in structure, high in positioning precision and high in universality.

Description

Technical field [0001] The invention relates to a positioning mechanism for measuring the distortion of the cross section of a metal elbow. Background technique [0002] Metal pipe fittings are bent into shape by determining reasonable fulcrums and stress points and applying a certain bending moment or bending force. During the bending and forming process of the pipe fittings, the outer side of the bending deformation zone is subjected to tangential tensile stress, and the pipe wall is thinned or even cracked; the inner side is subjected to tangential compressive stress, the pipe wall is thickened, and even buckling; the combined force of the two produces radial The inward compressive stress causes the cross-section to flatten and deform, or even collapse. After unloading, due to the residual stress inside the elbow and the recovery of elastic deformation, springback occurs. It can be seen that problems such as cracking, wrinkling, cross-sectional distortion and springback are ...

Claims

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Application Information

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IPC IPC(8): B25B11/00B21C51/00
CPCB21C51/00B25B11/00
Inventor 蒋兰芳施建峰金泽冯毅雄郭训忠林姚辰
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY
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