Meshing line large-specification gear measurement center

A technology of gear measurement and meshing line, which is applied to measurement devices, instruments, etc., can solve the problem of excessive tangential travel of the gear measurement center, and achieve the effects of reducing Abbe error, simple structure of measuring instrument, and improving measurement accuracy.

Inactive Publication Date: 2012-01-18
HARBIN JINGDA MEASURING INSTR
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the excessively large tangential travel of the gear measurement center when using the base circle generation method to measure the tooth profile deviation of large gears, thereby providing a meshing line large-scale gear measurement center with layout optimization, measurement Advantages of high precision

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  • Meshing line large-specification gear measurement center
  • Meshing line large-specification gear measurement center
  • Meshing line large-specification gear measurement center

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Now, the working process of the gear left tooth surface profile deviation measurement is taken as an example to illustrate the working process of the present invention: first, the position of the Z-axis during measurement is determined to ensure that it does not move during the entire measurement process; then according to the meshing principle, the C-axis is clockwise. When rotating a pressure angle (ie 20 degrees), the X-axis slider in the negative direction and the Y-axis slider in the negative direction of the three-axis linkage move to the starting position; The rotation angle from the starting measurement position to the final measurement position is simultaneously linked with the positive X axis and the positive Y axis to the final measurement position. The trajectory of the contact point is a tooth profile curve. During the mo...

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Abstract

The invention overcomes the defect of overlarge tangential travel of a gear measurement center when the error of a gear tooth form of a large gear is measured by adopting base circle generating method, thereby providing a meshing line large-specification gear measurement center which has the advantages of optimized layout and high measurement precision and comprises a C shaft used for fixing a gear to be measured, wherein the C shaft is a rotating shaft. The meshing line large-specification gear measurement center also comprises a sensor probe used for acquiring data of the gear tooth form to be measured, wherein the sensor probe is controlled to move along the meshing line of the gear to be measured by a control system. According to the invention, the tangential guide rail size of a measurement apparatus is remarkably shortened, the abbe error of the gear measurement center is effectively reduced without a measurement head alignment error, the tangential travel when the error of the gear tooth form is measured is reduced, the tangential direction and the radial direction of the apparatus are in the vertical coordinate axis, thus the influence of the abbe error is furthest reduced, the optimized layout of the apparatus structure is effectively realized, the measurement precision is improved, and the advantages of simple structure and convenience for installation location and operation are realized.

Description

Technical field: [0001] The invention is applied to the technical field of large-scale gear measurement, and particularly relates to a large-scale gear measurement instrument for meshing lines. Background technique: [0002] The measurement of gear tooth profile usually adopts the base circle generation method. The base circle generation method is based on the principle of involute formation. The radius of curvature of a point on the involute is equal to the arc length from the starting point of the involute formed on the base circle to the radius of curvature and the tangent point of the base circle. The tooth profile measuring instrument based on this method adopts two-axis linkage when measuring the tooth profile, and the probe moves along the tangent of the measured gear in the direction away from the center of the X-axis. The X-axis of the measuring instrument is very long, which increases the size of the measuring instrument. Invention content: [0003] The purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/20
Inventor 周广才马超伦孙岩史海娟
Owner HARBIN JINGDA MEASURING INSTR
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