Deep hole machining hydraulic online deviation rectifying device based on vision measurement technology

By adopting visual measurement technology and hydraulic control system in the deep hole processing system, the drill bit offset is detected in real time and the deviation is corrected, which solves the problem of inaccurate detection of drill bit skew and difficult to control the correction force in deep hole processing, and achieves high-precision deep hole processing.

CN119681322AInactive Publication Date: 2025-03-25CHENGDU TEXTILE COLLEGE
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Patent Information

Application Number
CN202510210338.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the deep hole processing, it is difficult to accurately detect the drill bit deflection in real time, which makes it difficult to accurately control the deviation force, and it is easy to cause problems such as insufficient or excessive correction.

Method used

A deep hole processing hydraulic online deviation correction device is adopted based on visual measurement technology. By installing a point laser light source and camera on the drill bit, the coordinate position change of the laser beam in the photo is detected in real time, the offset of the drill bit is calculated, and the deviation is generated by the hydraulic control system to correct the deviation.

Benefits of technology

Real-time and accurate drill bit offset detection and deviation correction force control are achieved, avoiding the problems of insufficient or excessive correction, and improving the accuracy and efficiency of deep hole processing.

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Abstract

The invention discloses a deep hole machining hydraulic online deviation rectifying device based on the vision measurement technology, and relates to the technical field of deep hole machining, the deep hole machining hydraulic online deviation rectifying device comprises a drill bit, a drill rod, a vision measurement system, a deviation rectifying executing mechanism and a hydraulic control system, and the drill bit is in threaded connection to the drill rod; the drill rod is fixed on the feeding box; the vision measurement system comprises a camera and a point laser source, the point laser source is used for emitting a single laser beam, the camera is used for shooting the laser beam at high frequency, and the offset of the drill bit is calculated by calculating the change of the coordinate position of a light spot in a picture; the deviation rectifying executing mechanisms are evenly distributed around the drill bit and comprise hydraulic cylinders and cylindrical rollers, the hydraulic cylinders are perpendicularly fixed to the side face of the drill bit, and the cylindrical rollers are arranged at the outer ends of the hydraulic cylinders; the hydraulic control system comprises a hydraulic oil tank and a hydraulic pump, and a hydraulic cylinder pushes a cylindrical roller to extend outwards and generates inward radial thrust to achieve deviation correction. Whether the cutter deflects or not can be detected in real time, and accurate deviation correction can be achieved in real time.
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