Fixture used for improving device for fixing bottom surface of acoustic component R-Cabin reverberation box of automobile
A technology for fixing devices and acoustic components, applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves for material analysis, scientific instruments, etc., can solve problems such as uncertainties and measurement errors, and achieve simple structure, convenient installation and use, and improved Effects of Efficiency and Accuracy
Inactive Publication Date: 2013-10-23
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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However, this design can only measure materials with a thickness of 25mm and an area of 1 m2. When the material is less than or exceeds this thickness, there will be measurement errors and uncertainties.
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[0010] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0011] As shown in the figure: the jig used to perfect the bottom surface fixing device 1 of the automobile acoustic component R-Cabin reverberation box in the embodiment is mainly composed of two adjusting plates 3 and an angle steel jig 4 .
[0012] The shape of the two regulating plates 3 matches the shape of the concave cavity 2 on the bottom surface fixing device 1 of the reverberation box, and the concave cavity 2 on the bottom surface fixing device 1 of the reverberation box is a square with a side length of 1 m. The depth of the concave cavity 2 is 25mm; the thickness of the two adjustment plates 3 is different, one of the adjustment plates 3 has a thickness of 10mm, and the other adjustment plate 3 has a thickness of 15mm, and the sum of the thicknesses of the two adjustment plates 3 is equal to the reverberation box The depth of the cavity 2 on the bo...
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Abstract
The invention relates to a fixture used for improving a device for fixing the bottom surface of an acoustic component R-Cabin reverberation box of an automobile. The fixture is characterized by comprising two adjusting plates and an angle iron fixture, wherein the shape of each of the two adjusting plates is tallied with that of a concave cavity in the device for fixing the bottom surface of the reverberation box, the thicknesses of the two adjusting plates are different, the sum of the thicknesses of the two adjusting plates is equal to the depth of the concave cavity in the device for fixing the bottom surface of the reverberation box, and the shape and size of the angle iron fixture are the same as those of the concave cavity in the device for fixing the bottom surface of the reverberation box. The fixture is simple in structure, and can be used for measuring a test piece with small thickness by heightening the bottom, so that the thickness measuring range of an original device for fixing the bottom surface of the reverberation box is widened and perfected, the installation and use are convenient, and the testing efficiency and accuracy are greatly improved.
Description
technical field [0001] The invention relates to a jig for perfecting the fixing device for the bottom surface of an R-Cabin reverberation box of an automobile acoustic component, and belongs to the technical field of noise control in automobile manufacturing. Background technique [0002] With the development of the automobile industry, people's requirements for automobiles have gradually increased. The mechanical properties and comfort performance of automobiles have become important standards for measuring the quality of automobiles. The NVH (Noise, Vibration, Harshness) level of automobiles is an important standard, and NVH The sound absorption performance of materials in the level has received extensive attention. Studies have shown that the sound absorption performance of materials is related to the installation method during material testing. Improving and optimizing the installation method during testing is also one of the important topics in the field of material aco...
Claims
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IPC IPC(8): G01N29/22
Inventor 陆月黄威
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD