Machine vision-based automatic detection method for position of hard disk magnet

Abstract

The invention discloses a machine vision-based automatic detection method for position of a hard disk magnet and relates to the field of machine vision detection. The position of a magnet is indirectly reflected by measuring distances between three set coordinate points at the edge of the magnet and a standard point. The machine vision-based automatic detection method for the position of the hard disk magnet comprises the following steps: (1) placing a tray filled with products onto a clamp of an XY platform, and moving the products to a place under a vision system by the XY platform after a grating senses that a hand leaves an operating platform; (2) when the XY platform is in place, triggering an image collecting device for collecting images, and transmitting images to an image processing unit by an image collecting card; (3) after performing the treatment, such as matching positioning, coordination rotating, edge searching, and the like, on the product images collected in the step (2) by image processing software, displaying a position detection result on a PC (Personal Computer) through a human-computer interface; (4) after completely detecting one product, correspondingly moving the XY platform till all the products on the tray are completely detected; and (5) finishing the detection, sending out the products by the XY platform and picking out the defective products according to the detection result. According to the scheme, the productivity is greatly increased and the cost is lowered. The machine vision-based automatic detection method has a practical significance.

Description

technical field [0001] The invention relates to a machine vision-based automatic detection method and device for the position degree of a hard disk magnet, which is used for online detection of the position degree of a hard disk magnet. Background technique [0002] The hard disk magnet is an indispensable part of the hard disk. It will form a magnetic field and use this magnetic field to drive the read-write arm in the hard disk. Therefore, the position of the magnet will affect the formation of the magnetic field, thereby affecting the drive of the read-write arm and the hard disk. data read and write. In the process of industrial processing, it is inevitable that the position of the magnet will shift due to objective reasons. The traditional contact manual detection method is not only cumbersome, labor-intensive, but also slow in detection speed, which cannot eliminate human-made measurement errors. During the detection process, it may also cause certain damage to the su...

AI Technical Summary

Problems solved by technology

[0002] The hard disk magnet is an indispensable part of the hard disk. It will form a magnetic field and use this magnetic field to drive the read-write arm in the hard disk. Therefore, the position of the magnet will affect the formation of the magnetic field, thereby affecting the drive of the read-write arm and the hard disk. data read and write

In the process of industrial processing, it is inevitable that the position of the magnet will shift due to objective reasons. The traditional contact manual detection method is not only cumbersome, labor-intensive, but also slow in detection speed, which cannot eliminate human-made measurement errors.

During the detection process, it may also cause certain damage to the surface of the object, which does not meet the requirements of online rapid detection required by modern industry

Images