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A Method of Equally Interval Sampling on Tooth Surface to Improve Gear Measuring Accuracy

A technology of equal interval sampling and gear measurement, which is applied in the direction of measuring devices, instruments, etc., to achieve the effect of improving measurement accuracy and facilitating error analysis

Active Publication Date: 2017-12-12
FIRST TRACTOR
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  • Application Information

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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 gear measuring instrument due to the lack of current data acquisition technology during the gear measurement process, as well as cutting tools, The problem that it is difficult to accurately refer to the corresponding error curve for gear grinding is solved

Method used

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  • A Method of Equally Interval Sampling on Tooth Surface to Improve Gear Measuring Accuracy
  • A Method of Equally Interval Sampling on Tooth Surface to Improve Gear Measuring Accuracy
  • A Method of Equally Interval Sampling on Tooth Surface to Improve Gear Measuring Accuracy

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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 sampling description at equal intervals, as shown in Figure 2. Sampling at equal intervals on the tooth surface is to determine a series of uniform sampling points on the involute section of the tooth surface in advance. 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] ...

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Abstract

A method of sampling tooth surfaces at equal intervals to improve the measurement accuracy of gears, which can be used in the process of gear measurement to solve the problem of the measurement accuracy of the tooth profile of the gear measurement instrument due to the lack of current data acquisition technology, and the difficulty of accurately referring to the corresponding problems in tool and gear grinding Problems such as the error curve diagram are solved, which makes up for the problem that the sampling points at the top of the tooth are sparser than the sampling points at the tooth root, and cannot truly reflect the microscopic geometry of the tooth surface as a whole, which is conducive to the improvement of gear measurement accuracy; the error curve can be consistent with the actual tooth profile. The intuitive analysis of one-to-one correspondence is more conducive to the error analysis of gears, and provides a better reference for the grinding of gear tools.

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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Patent Type & Authority Patents(China)
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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