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Measuring mechanism for measuring bending angle and springback precision of bent pipe

A technology of bending angle and measuring mechanism, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of low precision, high cost, and low efficiency, and achieve the effects of strong versatility, high degree of automation, and high efficiency

Pending Publication Date: 2020-06-12
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 springback accuracy of the shape can be measured with special equipment such as a 3D global coordinate measuring instrument, but the cost is very high
Manual measurement can also be used, but the accuracy is not high and the efficiency is low

Method used

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  • Measuring mechanism for measuring bending angle and springback precision of bent pipe
  • Measuring mechanism for measuring bending angle and springback precision of bent pipe
  • Measuring mechanism for measuring bending angle and springback precision of bent pipe

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Experimental program
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Embodiment Construction

[0025] like Figure 1-5 As shown, a measuring mechanism for measuring the bending angle and springback accuracy of a bent pipe in this embodiment includes a positioning mounting rod 24, a rotating arm 31, a first gear 32, a sleeve 33, a telescopic arm 34, and a first rack 35. A laser scanner 36, a second gear 37, a first motor 38, a third gear 39 and a second motor 40; wherein the positioning installation rod 24 is sequentially fitted with a rotating arm 31 and a first gear 32 from bottom to top and a sleeve 33; a telescopic arm 34 is installed on the rotating arm 31; a first rack 35 is installed on the telescopic arm 34, and a laser scanner 36 is installed on the outermost end of the telescopic arm 34; The first motor 38 is installed on the described rotating arm 31, the second gear 37 is installed on the output shaft of the first motor 38, and the second gear 37 is meshed with the first rack 35; A second motor 40 is mounted on the outside of the sleeve 33 , and a third gear...

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Abstract

The invention discloses a measuring mechanism for measuring the bending angle and springback precision of a bent pipe. The measuring mechanism comprises a positioning mounting rod, wherein a rotatingarm, a first gear and a sleeve sequentially sleeve the positioning mounting rod from bottom to top; a telescopic arm is mounted on the rotating arm; a first rack is mounted on the telescopic arm, anda laser scanner is mounted at the outermost end of the telescopic arm; a first motor is installed on the rotating arm, a second gear is installed on an output shaft of the first motor, and the secondgear is connected with the first rack in an engaged mode; a second motor is installed on the outer side of the sleeve, a third gear is installed on an output shaft of the second motor, and the third gear is connected with the first gear in a meshed mode. According to the invention, the bending angle and the springback precision of the planar bent pipe can be automatically and accurately measured and calculated, and the device is suitable for different pipe diameters and bending angles and has strong universality.

Description

technical field [0001] The invention relates to a measuring mechanism for measuring the bending angle and springback precision of a bent pipe. Background technique [0002] Metal pipe fittings are bent into shape by determining a reasonable fulcrum and stress point and applying a certain bending moment or bending force. During the bending and forming process of the pipe fittings, the outside of the pipe is pulled, and the pipe wall becomes thinner, or even cracked; the inner side is compressed, and the pipe wall becomes thicker, or even wrinkled; the combined force of the two produces radially inward compressive stress, making The section is flattened and distorted, even collapsed. After unloading, due to the residual stress inside the elbow and the recovery of elastic deformation, springback occurs. It can be seen that the bending forming process of pipe fittings is a complex forming process with multiple forming defects. [0003] When metal elbows are used in different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 蒋兰芳王丽辉金泽陶晓辉
Owner ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY