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Projection Moire gear tooth surface three-dimensional measurement device and measurement method

A technology for measuring devices and tooth surfaces, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of light path propagation being easily blocked by occlusion and low measurement accuracy, and achieve fast measurement speed, high measurement accuracy, and Moiré moiré. high contrast effect

Inactive Publication Date: 2020-05-22
XIAN TECHNOLOGICAL UNIV
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Problems solved by technology

[0010] The present invention provides a three-dimensional measurement device and method for projection Moiré gear tooth surface to solve the problems in the prior art that the optical path propagation is easily blocked and the measurement accuracy is not high in the characterization process of the three-dimensional shape of the gear tooth surface.

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  • Projection Moire gear tooth surface three-dimensional measurement device and measurement method
  • Projection Moire gear tooth surface three-dimensional measurement device and measurement method
  • Projection Moire gear tooth surface three-dimensional measurement device and measurement method

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Embodiment Construction

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0036] The present invention will be described in detail below with reference to the drawings and implementation.

[0037] see figure 1 and figure 2, a three-dimensional profile measuring device for a gear tooth surface with projected structured light, comprising a point light source 1, a measurement grating 2 and a semi-reflective and semi-transmissive mirror 3 are sequentially arranged on the optical path of the point light source 1, and the semi-reflecti...

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Abstract

The invention relates to a projection Moire gear tooth surface three-dimensional measurement device and measurement method. The device comprises a point light source, a measuring grating and a semi-reflection semi-transmission mirror are sequentially arranged on a light path of the point light source, an included angle of 45 degrees is formed between the semi-reflection semi-transmission mirror and the light path, and a lens, a reference grating and an industrial camera are sequentially arranged on a reflection light path by which the point light source passes through the semi-reflection semi-transmission mirror. The point light source is composed of an optical fiber support, optical fiber and a light source, one end of the optical fiber is connected to an emission end of the light source,and the other end is erected on the optical fiber support. According to the invention, a light path propagation path is changed through the semi-reflection semi-transmission mirror, compared with theuse of a reflecting mirror, the reflecting mirror needs to be installed in a tooth groove, the fixation is complex, interference with the measurement device easily occurs, while the semi-reflection semi-transmission mirror can be installed outside a tooth groove of a measured gear, the structure is simpler, the implementation is easy, meanwhile, optimal projection and data acquisition can also berealized, and the measurement is free of light shielding.

Description

technical field [0001] The present invention relates to the technical field of optical precision measurement, and further relates to the technical field of surface structured light measurement, in particular to a three-dimensional measuring device and method for projecting Moiré gear tooth surfaces. Background technique [0002] The evaluation of gear tooth surface shape error is an important precision index in gear manufacturing. Gear tooth shape and tooth direction error measurement technology is the core process guarantee for reducing transmission noise, improving transmission efficiency and prolonging life. When the precision of the gears reaches the micron level, the new foreign submarines operate with low noise and can hide their location from the enemy. As another example, the research of Kyoto University in Japan shows that the performance and service life of automobile gears are better and the service life is longer after making a small correction of 2-3 microns. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/25
CPCG01B11/2416G01B11/2531G01B11/254
Inventor 杜虎兵何周旋王建华
Owner XIAN TECHNOLOGICAL UNIV
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