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Method of using gear measuring center to measure and evaluate gear surface roughness

A gear measurement and roughness technology, applied in the direction of mechanical roughness/irregularity measurement, etc., can solve the problems of limited automation, manual adjustment of stylus rough positioning, complicated data processing, etc., to achieve the effect of improving accuracy

Active Publication Date: 2018-05-08
FIRST TRACTOR
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Problems solved by technology

There are two problems with this method of operation: first, the rough positioning of the stylus needs to be adjusted manually, and the gear is placed on the workbench. In order to ensure that the stylus can maintain good contact when sliding, it needs to be adjusted manually by visual inspection, and the degree of automation is limited; The second is that the original profile measured by this method contains the nominal shape, that is, the involute shape of the tooth profile. In order to separate the roughness from the longer wavelength of the profile, the nominal shape component must be eliminated before filtering. complex data processing

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  • Method of using gear measuring center to measure and evaluate gear surface roughness
  • Method of using gear measuring center to measure and evaluate gear surface roughness
  • Method of using gear measuring center to measure and evaluate gear surface roughness

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention.

[0051] The technical terms involved in the description of the present invention are described as follows;

[0052] Trajectory profile: When measuring the surface, the track of the center point of the stylus in the cross-section of the surface to be measured, other profiles are derived from this profile.

[0053] Raw Profile: Passed λs The total contour after contour filtering.

[0054] Roughness profile: for the original profile λc The contour filter is the contour formed after suppressing the long-wave components.

[0055] S 1 , Using the gear shape measuring instrument to implement the measurement method of surface roughness.

[0056] S 11 1. Install a stylus dedicated to measu...

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Abstract

A method of using a gear measuring center to measure and evaluate gear surface roughness is disclosed. On a gear measurement center, a roughness sensor probe and correlation data processing software are combined and used so as to realize a measurement and evaluation method of gear surface roughness. A measurement direction belongs to involute profile direction measurement, and a top clamping modeis adopted so that a problem caused by manual adjusting needed by stylus coarse positioning is avoided. Under a generative movement condition of the gear measurement center, a stylus only carries outrectilinear motion along with bending of a gear surface. A gear-surface uniformly-spaced sampling principle is used to carry out sampling and acquired traced profile discrete points are uniformly andequally spaced. During a roughness measurement process, sampling lengths and evaluation lengths of a measurement position, a measurement result and an evaluation process are selected equivalently, a corresponding method and a data table are given, actual operation is convenient and measurement precision is guaranteed, problems that uniform sampling, reasonable evaluation and the like can not be realized on a gear surface are avoided and a technical problem that gear surface roughness analysis and evaluation can not be performed is solved.

Description

technical field [0001] The invention belongs to the field of gear tooth surface roughness detection and relates to a method for measuring and evaluating the tooth surface roughness by using a gear measurement center. Background technique [0002] As we all know, the roughness of the gear tooth surface plays an important role in the wear resistance and fatigue strength of the gear, and directly affects its service life. In addition, surface roughness also has a great influence on the vibration and noise of gear transmission. [0003] At present, surface roughness measurement methods usually include comparison method, light section method, interferometry and stylus method. Among them, the stylus method has a wide measuring range and high measuring efficiency, and is the most widely used. The main instruments that apply the stylus method are surface roughness measuring instrument and surface roughness profiler. The method of measuring the tooth surface roughness is: place the...

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Application Information

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IPC IPC(8): G01B5/28
CPCG01B5/28
Inventor 林敏
Owner FIRST TRACTOR
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