Angular zero alignment method for clamp in multi-axis vision measurement device
A technology of visual measurement and angular orientation, applied in the direction of measuring devices, optical devices, instruments, etc., can solve problems such as alignment problems, and achieve the effect of broad application prospects, great innovation value and practical significance
Active Publication Date: 2021-11-12
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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Problems solved by technology
At present, since the front-end sensor of the multi-axis vision measurement device is an industrial camera, which is significantly different from the conventional contact three-dimensional measuring head, there is no solution to the problem of angular zero alignment of rotating parts or fixtures in this equipment environment. Effective and reliable solution
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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] An embodiment of the present invention provides a multi-axis visual measurement device, such as figure 1 and figure 2 As shown, the measuring device includes a three-dimensional motion platform 1 , a Z-axis support plate 2 , an industrial camera 3 , a fixture 4 , a turntable 6 and a base 7 .
[0042] Preferably, the ...
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The invention belongs to the technical field of machine vision and vision measurement, and particularly relates to an angular zero alignment method for a clamp in a multi-axis vision measurement device. The alignment method comprises the steps of: inserting an angular positioning target into an angular zero hole in a clamp, and adjusting an industrial camera and a rotary table to be in an initial state; placing a parallel illumination light source at a position opposite to the industrial camera, enabling the angular positioning target to be in a back illumination acquirable state, and acquiring a back illumination image of the angular positioning target; and carrying out extraction processing on the back illumination image, and extracting a target area center line and an image center line in the back illumination image. Through using the industrial camera and the angular positioning target, the angular position of the center of the angular zero position hole of the clamp on the rotary table can be determined, the problem of angular zero position alignment of the clamp in a multi-axis vision measuring device is solved, and the angular zero alignment method has great innovation value and practical significance and is wide in application prospect.
Description
technical field [0001] The invention belongs to the technical field of machine vision and visual measurement, in particular to a method for correcting the angular zero position of a fixture in a multi-axis visual measurement device. Background technique [0002] In many industrial fields such as aviation, aerospace, shipbuilding and automobiles, rotary parts account for a large proportion of various parts, and most of them are key components of industrial equipment or mechanical equipment, playing an irreplaceable role. During use, its shape and position error and manufacturing accuracy will have an important impact on the assembly and performance of the entire part, not only affecting the matching properties of the contact surface, but also affecting the vibration, noise, rotation accuracy and fatigue of rotating parts Lifespan etc. Therefore, in the processing site of rotary parts, it is urgent to realize high-precision and efficient detection and evaluation of its key ge...
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IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 毕超郝雪周鹏房建国
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC