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Arc end tooth addendum measuring method

An arc end tooth and measurement method technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of limited end tooth size range, affecting end face imaging clarity, non-standard measurement methods, etc., to achieve easy grasp, measurement data and Stable repeatability and convenient promotion effect

Inactive Publication Date: 2016-06-08
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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AI Technical Summary

Problems solved by technology

[0004] The end teeth under test have chamfers, which will affect the clarity of the end face imaging and cause detection errors
[0005] Since the range of the universal tool microscope is 100mm, the size range of the tested end tooth is limited
[0006] The measurement method is not standardized, greatly affected by human factors, low measurement efficiency and poor repeatability

Method used

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  • Arc end tooth addendum measuring method

Examples

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Effect test

Embodiment 1

[0034] The steps of the method of measuring the height of the tooth top at the circular arc end are as follows:

[0035] ①In order to meet the requirement that the actual measurement position is consistent with the theoretical position, the scanning probe (1) of the three-coordinate measuring machine is used to measure the height of the tooth top of the arc end, and the cylindrical scanning function is used at the end tooth pitch circle to collect the standard concave The actual profile data points of the tooth; avoiding the error caused by the unequal focal length of the optical measurement, the text data CURVE (1) is a three-dimensional polar coordinate value; its three-dimensional graphics are as follows Image 6 .

[0036] First, establish a Cartesian coordinate system; measure the reference plane A, determine the z-axis direction and the xoy plane, and then measure the reference hole, set the center of the circular hole as the coordinate origin o, and set any direction as...

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Abstract

An arc end tooth addendum measuring method comprises the following steps: using the scanning probe of a three-coordinate measuring machine to measure the addendum of an arc end tooth, and acquiring actual contour data points of a standard concave tooth at the reference circle of the end tooth through a cylindrical scanning function; establishing a rectangular coordinate system, measuring a datum plane A, determining a z-axis direction and an oxy plane, measuring a benchmark hole, setting the center of the hole as the origin of coordinates o, and taking any direction as an x-axis direction; and setting end tooth measurement parameters, selecting Edit scanning data in the three-coordinate measuring machine, and setting selected unknown circumferential scanning. By using the arc end tooth addendum measuring method, the detection precision of standard arc end tooth addendum is improved.

Description

technical field [0001] The invention relates to the technical field of parameter measurement of arc-end teeth, and in particular provides a method for measuring the height of an addendum of an arc-end tooth. Background technique [0002] The arc end tooth is a kind of precise end face spline coupling. In addition to transmitting torque, it can also accurately ensure the coaxiality of the two interconnected parts. It has the incomparable advantages of other end face couplings. For the specific structure, see attached figure 1 . The arc-end tooth gauges currently developed are all self-designed. Since the quality control of the arc-end teeth is transmitted through "concave tooth standard parts, calibration gauges, working gauges, and product parts", the arc-end tooth standard parts The measurement accuracy of tooth profile dimension is particularly important. The original measurement method of arc end tooth parameters is relatively primitive, especially the important parame...

Claims

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Application Information

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IPC IPC(8): G01B21/04
Inventor 王东王玉张露单纯利杨晓东于绍永
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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