A Method for Precise Extraction of Cycloidal Gear Profile Error and Rapid Analysis of Key Shape and Position Accuracy

An accurate extraction and rapid analysis technology, applied in image analysis, image enhancement, instruments, etc., can solve the problems of insufficient utilization of equipment, accuracy less than 1nm, and high price of white light interferometer, achieving good application prospects and convenient processing , to meet the effect of rapid and precise detection and analysis

Active Publication Date: 2021-01-19
XI AN JIAOTONG UNIV +1
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Problems solved by technology

[0004] In the Chinese patent "A Measuring Method for Tiny Modulus Gears" (201711159876.0), the measurement object is a small modulus gear, and the image acquisition equipment white light interferometer used is expensive, but it is only used to measure the edge of the contour, and the equ

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  • A Method for Precise Extraction of Cycloidal Gear Profile Error and Rapid Analysis of Key Shape and Position Accuracy
  • A Method for Precise Extraction of Cycloidal Gear Profile Error and Rapid Analysis of Key Shape and Position Accuracy
  • A Method for Precise Extraction of Cycloidal Gear Profile Error and Rapid Analysis of Key Shape and Position Accuracy

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[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0042] see Figure 11 , on the basis of an optical rapid detection three-axis measurement platform, the present invention adopts the variable magnification automatic path planning method to realize the position accuracy detection of the cycloidal gear tooth profile and the installation hole, and the detection process completes the gear image acquisition under the panoramic measurement field of view in turn, and the installation Extraction of hole profile and tooth profile, automatic path planning, accurate measurement and acquisition of gear images in the field of view (according to path planning), and obtain various contour coordinate points through image data processing technology, and analyze and calculate according to the extracted installation hole contour position coordinates Install the position error of the hole and complete the accura...

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Abstract

The present invention provides a method for accurately extracting that profile error of cycloidal gear and rapidly analyzing the key shape and position accuracy. By means of variable magnification measurement, the use of a combination of panoramic and accurately measured fields of view, the detection path planning of the tooth profile and the position precision of the mounting hole of the cycloidal gear are reailzed, the extraction of the outline of the mounting hole, the accurate establishment of the workpiece coordinate system, the extraction of the tooth profile outline in turn according tothe detection path are completed, and each outline coordinate point through image data processing is obtained, thereby obtaining the tooth profile error of the cycloidal gear and the position error of the mounting hole.

Description

technical field [0001] The invention belongs to the field of precision measurement of complex profiled workpieces, and in particular relates to a method for accurately extracting cycloidal gear profile errors and quickly analyzing key shape and position accuracy. Background technique [0002] Cycloidal pinwheel reducers have the advantages of small size and large transmission ratio, and are widely used in textile, metallurgy, machinery, mining, chemical and other industries. The cycloidal gear is the key part of the cycloidal pin wheel planetary transmission, and its production quality depends on the detection method to a large extent. At the same time, the cycloidal gear is still an important part that affects the performance of the robot joint reducer. During operation, its cycloidal tooth profile and the standard pin wheel are in a state of multi-tooth seamless meshing, and half of the pin teeth push the cycloidal gear at the same time. Movement is an over-positioning st...

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Application Information

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IPC IPC(8): G06T7/00G06T7/13G06K9/62
CPCG06T7/0004G06T2207/30164
Inventor 丁建军王震刘阳鹏蔡磊李兵蒋庄德赵威
Owner XI AN JIAOTONG UNIV
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