Tooth surface equal interval sampling method used for improving gear measuring precision

A technology of equal interval sampling and gear measurement, applied in measurement devices, instruments, etc., to improve measurement accuracy and facilitate error analysis

Active Publication Date: 2016-01-27
FIRST TRACTOR
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for improving the measurement accuracy of gears by sampling at equal intervals from the tooth surface, which can solve the problem of the measurement accuracy of the tooth profile of the...

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  • Tooth surface equal interval sampling method used for improving gear measuring precision
  • Tooth surface equal interval sampling method used for improving gear measuring precision
  • Tooth surface equal interval sampling method used for improving gear measuring precision

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing. The operating principle of the present invention is: tooth surface equidistant sampling description, such as figure 2 shown. Sampling at equal intervals on the tooth surface is to pre-determine a series of uniform sampling points on the involute section of the tooth surface. When these points are reversed to the development length (or development angle), it can be seen that the angle) on the interval ΔL (or spread angle interval Δφ ) are not equal, the distance between the developed lengths at the root of the tooth is the largest, the closer to the top of the tooth, the smaller the interval, and the interval at the top of the tooth is the smallest, but the sampling interval on the tooth surface ΔS are equal.

[0022] The specific method to improve the accuracy of gear measurement by sampling at equal intervals from the tooth surface is as follows:

[0023] (1) Accordi...

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Abstract

The invention provides a tooth surface equal interval sampling method used for improving the gear measuring precision. In a gear measuring process, the problem that the tooth profile measuring precision of a gear measuring instrument is affected by the shortcomings of the existing data acquisition technology is solved, and the problem that corresponding error curve reference of tool and gear grinding is inaccurate is solved. The problems that addendum sampling points are sparser than dedendum sampling points and the tooth surface microscopic geometry cannot be integrally and truly reflected are solved. The gear measuring precision is improved. Error curves and actual tooth profile points are one-to-one corresponding for visual analysis, which is conducive to the gear error analysis and provides reference for gear tool grinding.

Description

technical field [0001] The invention belongs to the detection field of gear measuring instruments, and relates to a method for improving the measurement accuracy of gears by sampling at equal intervals from tooth surfaces. Background technique [0002] As we all know, in gear measurement, the measurement of tooth profile shape error is the main item of gear measurement. At present, most of the gear measuring instruments used in China are based on the principle of electronic generation or mechanical generation, and most of the tooth surface data collection methods adopt the involute tooth surface equal interval sampling method. The specific process of tooth shape error measurement is: when the tooth shape involute is unfolded, the C-axis drives the gear to rotate evenly, and the tangential carriage drives the measuring head system to move forward and backward at a uniform speed along the X-axis. According to the principle of electronic generation, the probe system under the ...

Claims

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Application Information

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IPC IPC(8): G01B21/20
Inventor 林敏张秋阳孙峰顾运萍刘盟盟
Owner FIRST TRACTOR
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