Rear-mounted deep hole machining on-line detection and deviating correction device

Abstract

The present disclosure relates to the technical field of deep hole machining, particularly to a rear-mounted deep hole machining on-line detection and deviating correction device, which provide solution to the difficulty in observing the machining site and correcting the cutter deviation in deep hole machining. The device comprises a cutter bar provided with a plurality of iron blocks mounted uniformly in a circumferential direction, wherein each of the iron blocks is provided with a heating device in the interior thereof and a wear-resistant block mounted on the top thereof, wherein mounted on an end face of the other end of the cutter bar is a pyramid prism, wherein a laser transmitter and a photosensitive sensor are mounted in a height corresponding to the height range of the pyramid prism, wherein the incident beam emitted by the laser transmitter is oriented by a laser orientating block. The advantages of the disclosure lie in that the information of the position the deep hole cutter during deep hole machining process and whether the deep hole is skewed or not can be obtained in time, thereby facilitating a solution to the difficulty in detecting the workpiece deep hole straightness and on-line deviating correction, improving the position accuracy such as straightness of the deep hole and reducing the rejection rate of the workpiece.

Description

RELATED APPLICATIONS[0001]The present application claims priority to China Patent Application Serial No. CN 201510774055.2 filed on Nov. 13, 2015, which is hereby incorporated by reference in its entirety.TECHNICAL FIELD[0002]The present disclosure relates to the technical field of deep hole machining, particularly to a rear-mounted deep hole machining on-line detection and deviating correction device.BACKGROUND[0003]Boring, reaming, enlarging or honing a hole means enlarging the diameter of an existing hole such that the accuracy can be improved and the surface roughness can be reduced, and under some circumstances the initially skewing of an axis of the hole can be well corrected.[0004]During the process of deep hole machining, a cutter bar is limited by the hole diameter such that the cutter bar has a small diameter and a long length, resulting in weak rigidity and low strength. During the process of deep hole machining, vibration, corrugation, taper and tilt may often occur, whi...

AI Technical Summary

Benefits of technology

The solution enables real-time detection and correction of cutter bar deviations, ensuring high accuracy and straightness of deep holes by using laser detection and heat-expanding iron blocks, allowing continuous machining without stopping.

Problems solved by technology

During the process of deep hole machining, a cutter bar is limited by the hole diameter such that the cutter bar has a small diameter and a long length, resulting in weak rigidity and low strength.

During the process of deep hole machining, vibration, corrugation, taper and tilt may often occur, which impinge the straightness of the deep hole.

Meanwhile, it is difficult to observe the machined site and the cutting conditions of the cutter, such that the skewing of the cutter bar would hardly be noticed and thus it would have difficulty in correction of the deviation in time.

There is no effective technique and device which can in real time detect and correct the position of deep hole cutter during deep hole machining.

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