A non-centripetal porous shaft precision vision continuous alignment system and method thereof

Abstract

The invention relates to an accurate visual continuous aligning system for a non-centered porous shaft and a method thereof. The system comprises a base, a deflection shaft, a Y-direction electric control translation shaft, an X-direction electric control translation shaft, an electric control rotating shaft, a three-dimensional part to be assembled, a vertical electric control translation shaft and a vision system, wherein the deflection shaft is arranged on the base; the Y-direction electric control translation shaft is mounted on the deflection shaft and moves in a direction parallel to that of the deflection shaft; the X-direction electric control translations haft is mounted on the Y-direction electric control translation shaft and is in the direction vertical to the movement direction of the Y-direction electric control translation shaft; the electric control rotating shaft is mounted on the X-direction electric control translation shaft, and an axis of the electric control rotating shaft is in the direction parallel to the movement direction of the X-direction electric control translation shaft; the three-dimensional part to be assembled is fixed to the electric control rotating shaft; the vertical electric control translation shaft is mounted to the base; and the vision system is mounted on the vertical electric control translation shaft. Compared with the prior art, the system has the advantage of being applicable to continuous aligning assembling of a non-centered porous shaft on a complex-shape part.

Description

technical field [0001] The invention relates to an automatic alignment system and method in the field of automatic assembly, in particular to a precision visual continuous alignment system and method for a non-central porous shaft on a complex-shaped component using a five-degree-of-freedom mechanism. Background technique [0002] Hole-axis alignment assembly task is the most extensive type of alignment assembly task, and its alignment assembly process can generally be divided into two steps: the first step is that the alignment assembly system needs to judge the relative position of the hole and the shaft, through mechanical movement Align the hole and the shaft on a straight line, such as using a laser alignment instrument to align the rotating transmission shaft, or using a vision system to align along the axis of the assembly hole. In these alignment methods, the vision system is used The alignment method can detect the two-dimensional position deviation in the alignment...

AI Technical Summary

Problems solved by technology

However, there is an obvious shortcoming and deficiency in this traditional vision system alignment method: when the shape of the parts to be aligned is complex, and the axis of the assembly hole is not parallel to the axis of the vision system, the detection effect of the vision system will be greatly affected. In some cases, even the position of the assembly hole cannot be detected normally

This system can detect and align contoured features on flat surfaces, but cannot align and measure holes in solid parts

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