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A method and device for detecting the bending height of double-bending longitudinal beams

A bending, longitudinal and bending technology is applied in the field of automatic measurement of the height of frame longitudinal beams, which can solve the problems of inconvenient height difference between two planes, measuring the length of the ruler, and inaccurate measurement, so as to reduce the possibility of manual misreading and improve the Data accuracy and the effect of improving measurement efficiency

Active Publication Date: 2021-12-10
SHAANXI AUTOMOBILE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when measuring the height distance between the two planes of the double-bending longitudinal beam, it is inconvenient to directly measure the height difference between the two planes due to the bending transition between the two planes during the measurement process.
A long ruler is used for measurement, and this measurement tool has the following problems: a. Since the length of the longitudinal beam is about 7m, the measuring ruler is long, and it will bend after long-term use, making the measurement inaccurate; b. During the measurement process, Both require two people to complete together, and the manual reading error is large, the measurement process is time-consuming and labor-intensive, and the efficiency is low

Method used

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  • A method and device for detecting the bending height of double-bending longitudinal beams
  • A method and device for detecting the bending height of double-bending longitudinal beams
  • A method and device for detecting the bending height of double-bending longitudinal beams

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Embodiment 1

[0035] A method is provided for detecting the bending height of a double-bent stringer, comprising:

[0036] A laser measuring instrument is arranged on a relatively low plane of the double-bend longitudinal beam, and an auxiliary measuring device is placed on a relatively high plane of the double-bend longitudinal beam;

[0037] Take the upper and lower two calibration points A and B on the auxiliary measuring device, and the projection point of A and B in the relatively high plane of the double-bend longitudinal beam is marked as C, and the laser measurement The initial emission point of the instrument is recorded as point O, and the laser emitted by the laser measuring instrument is emitted from point O to point A and point B respectively, and the distances between point O and point A, point O and point B are measured respectively;

[0038] According to the known distances between point A and point B, between point B and point C, between point O and point A, and between poi...

Embodiment 2

[0050] Such as figure 2 As shown, there is provided a device for detecting the bending height of the double-folded longitudinal beam, which applies the method for detecting the bending height of the double-folded longitudinal beam described in the above-mentioned embodiment 1 to bend the double-folded longitudinal beam High detection.

[0051] Specifically: the device for detecting the bending height of the double-folded longitudinal beam includes a laser measuring instrument and an auxiliary measuring device; the laser measuring instrument is arranged on a relatively low plane of the double-folding longitudinal beam, and the auxiliary measuring device The device is placed on a relatively high plane of the double-bend stringer;

[0052] Take the upper and lower two calibration points A and B on the auxiliary measuring device, and the projection point of A and B in the relatively high plane of the double-bend longitudinal beam is marked as C, and the laser measurement The in...

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Abstract

The invention provides a method and device for detecting the bending height of a double-bending longitudinal beam, wherein the method includes setting a laser measuring instrument on a relatively low plane of a double-folding bending stringer, and setting a laser measuring instrument on a relatively high Place the auxiliary measuring device on the plane of the auxiliary measuring device; take the upper and lower calibration points A and B on the auxiliary measuring device, and the projection point of point A and point B in the relatively high plane of the double-bending longitudinal beam is recorded as point C. The initial emission point of the laser measuring instrument is recorded as point O, the laser emitted by the laser measuring instrument is emitted from point O to point A and point B, and the distance between point O and point A, point O and point B is measured; through point A and point B The distance between point, point B and point C, point O and point A, point O and point B is used to calculate the bending height of the double-bending longitudinal beam. The present invention can automatically display the result on the display screen by using the existing distance measuring function of the laser measuring instrument, and the measurement process does not require the assistance of assistant personnel, thereby improving the measurement efficiency and reducing the possibility of manual misreading.

Description

technical field [0001] The invention belongs to the technical field of automatic measurement of the height of a longitudinal beam of a vehicle frame, and in particular relates to a method and a device for detecting the bending height of a double-bend longitudinal beam. Background technique [0002] After the double-bend longitudinal beam of the truck frame is processed, measuring the height distance between the two planes of the double-bend longitudinal beam is an important step to check whether the double-bend longitudinal beam is qualified, and is the key to improving product quality. [0003] At present, when measuring the height distance between the two planes of the double-bend longitudinal beam, it is inconvenient to directly measure the height difference between the two planes due to the bending transition between the two planes during the measurement process. A long ruler is used for measurement, and this measurement tool has the following problems: a. Since the leng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02G01B11/24
CPCG01B11/02G01B11/24
Inventor 李宁王亚旭杨小飞刘鹏姚忠魁任祥才
Owner SHAANXI AUTOMOBILE GROUP