Gap measuring device and application thereof to gap measurement of four doors and two covers of automobile

A measuring device and gap technology, applied in the direction of measuring devices, mechanical measuring devices, electromagnetic measuring devices, etc., can solve the problems of difficult to guarantee measurement accuracy, impossible to measure, limited thimble length, etc., to save preparation time, wide use range, improve efficiency effect

Pending Publication Date: 2020-02-04
CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the weight of the thimble itself, the friction force between the thimble and the shell, and the influence of the elastic coefficient of the internal spring, its repeatability is poor, and the measurement accuracy is difficult to guarantee; and the sensor is large in size, and it needs to remove the interior panel for measurement, which is inconvenient to use; In addition, the length of the thimble is limited, and some areas cannot be measured

Method used

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  • Gap measuring device and application thereof to gap measurement of four doors and two covers of automobile
  • Gap measuring device and application thereof to gap measurement of four doors and two covers of automobile
  • Gap measuring device and application thereof to gap measurement of four doors and two covers of automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A gap measuring device consisting of a fixed upper part and a lower part;

[0038] The upper part includes an upper housing 11, a second copper sheet 4 and a patch sensor, and the second copper sheet 4 includes a second copper sheet fixing part 41 integrally connected in sequence and a second copper sheet with restoring force Bending part 42, the angle between the second copper sheet fixing part 41 and the second copper sheet bending part 42 is a second obtuse angle; the patch sensor is pasted and fixed on the second copper sheet bending part 42 on the upper surface;

[0039] The lower part includes a lower casing 2 and a positioning member located in the lower casing 2 for fixing at the gap;

[0040] The second copper sheet fixing part 41 extends between the upper casing 1 and the lower casing 2 and is clamped and fixed by the upper and lower casings.

[0041] Wherein, the patch sensor occupies a small space, and is specifically a strain gauge 5, preferably, the mode...

Embodiment 2

[0050] On the basis of embodiment 1, a gap measuring device is respectively placed at two positions of the car door gap, named as sensor 1 and sensor 2 respectively, as Figure 7 As shown, the two sensors are calibrated using a standard device and an eDAQ data acquisition instrument. The standard curve of the relationship between strain and displacement of sensor 1 is shown in Figure 8 Shown; The standard curve of the strain and displacement relationship of sensor 2 is as Figure 9 shown.

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PUM

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Abstract

The invention relates to a gap measuring device and application thereof to gap measurement of four doors and two covers of an automobile. The device comprises an upper component and a lower componentwhich are fixedly connected with each other, wherein the upper component comprises an upper shell, a second copper sheet and a patch sensor; the second copper sheet comprises a second copper sheet fixing part and a second copper sheet bending part with restoring force which are connected integrally in sequence; the patch sensor is positioned on the upper surface of the second copper sheet bendingpart; the lower component comprises a lower shell and a positioning part which is positioned in the lower shell and is used for fixing at a gap; and the second copper sheet fixing part extends to thespace between the upper shell and the lower shell, and is clamped and fixed by the upper shell and the lower shell. Through the adoption of the device, the situation that data cannot be measured due to the limitation of measurement space is well avoided, and the inner gap data of any point on a door frame can be measured accurately. The gap measuring device has the advantages of saving of preparation time, convenience in use, higher efficiency, wide application range and greater benefit.

Description

technical field [0001] The invention belongs to the technical field of automobile testing, and in particular relates to a gap measuring device and its application in measuring the gap between four doors and two covers of an automobile. Background technique [0002] With the continuous improvement of customers' requirements for the perceived quality of the vehicle, the closing force of the car door has also been valued by various automobile manufacturing companies. The gap in the door frame of the body-in-white has a direct impact on the closing force of the door, and is also one of the key control items for the quality of the body-in-white. In the prior art, the door squeezes the pressure sensor through the thimble, so that the pressure generated by the pressure sensor is converted into displacement, and the internal gap measurement is realized. Due to the weight of the thimble itself, the friction force between the thimble and the shell, and the influence of the elastic co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/14G01B7/16
CPCG01B5/0025G01B7/14G01B7/18
Inventor 李耀王新宇李伟李占方冀照通宋超博詹永骁彭红伟蔡品秋刘顺起谷龙龙赵仁飞
Owner CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD
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