High-accuracy roundness detection method based on combination of reverse and multi-sensor methods

A multi-sensor and detection method technology, applied in the direction of instruments, measuring devices, etc., can solve the problems of indexing and positioning errors, difficulty in installing measurement sensors, long measurement cycle, etc., to avoid random errors, reduce installation difficulty, and accurate test results Effect

Inactive Publication Date: 2011-09-07
DONGHUA UNIV
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Problems solved by technology

In some special occasions, due to the limitation of structure and installation space, it is difficult to install more than 3 measuring sensors, which makes the installation of multi-side head method difficult
However, during the implementation of the transposition method, the measured parts need to be transpos

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  • High-accuracy roundness detection method based on combination of reverse and multi-sensor methods
  • High-accuracy roundness detection method based on combination of reverse and multi-sensor methods

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Embodiment Construction

[0018] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0019] The invention relates to a high-precision roundness detection method based on the combination of reverse and multi-sensor methods, comprising the following steps:

[0020] (1) Make two disks with the same shape error and place them on top of each other so that the two disks have the same radial error at the same position. When making two discs with the same shape error, the two discs can be fixed up and down together an...

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Abstract

The invention relates to a high-accuracy roundness detection method based on the combination of reverse and multi-sensor methods. The method comprises the following steps of: making two discs with the same shape error, taking one disc as a reference disc and rotating the other disc for 180 degrees coaxially, fixing the two discs mutually; arranging the fixed two discs on a testing platform of a roundness tester coaxially and enabling the circle centers of the two discs to be coincident with the rotation center of the roundness tester; and putting a detected workpiece on the discs and also enabling the circle center of the detected workpiece to be coincident with the rotation center of the roundness tester. In measurement, an inclined angle formed by two sensors connected with the discs is 180 degrees, workpiece shape errors in two paths of combined signals output by the sensors are same both in size and direction, and the rotation errors of a spindle are same in size and opposite in direction, therefore the rotation errors of the spindle can be separated out, and then the shape errors of the detected workpiece can be obtained, and the roundness of the detected workpiece can be obtained finally. By the method disclosed by the invention, the roundness of a workpiece can be measured accurately.

Description

technical field [0001] The invention relates to the field of roundness measurement, in particular to a high-precision roundness detection method based on the combination of reverse and multi-sensor methods. Background technique [0002] Roundness accuracy is one of the important indicators to measure the shape accuracy of cylindrical parts, and the size of the error will seriously affect its working performance. At present, there are many kinds of instruments used to measure the roundness error, among which the typical one is the roundness meter. The method of measuring the roundness error of the part on the roundness meter is the indication value of the roundness meter probe around the workpiece under test. It is considered to be the roundness error of the measured workpiece. For most mechanical equipment, the rotation error of the spindle of the roundness meter itself is very small relative to the roundness error of the workpiece to be measured, so it can be ignored. But...

Claims

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Application Information

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IPC IPC(8): G01B21/20
Inventor 邹鲲戴惠良闫如忠杨延竹周勤之
Owner DONGHUA UNIV
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