Title:
DEEP HOLE PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2023068832
Kind Code:
A
Abstract:
To provide a deep hole processing method which moves a cantilevered drill tool along an axis and presses a tip thereof against a work-piece thereby processing a deep hole, and in which bending during processing is detected, and this bending can be quantified and reflected in drill tool control.SOLUTION: Vibration displacement of a drill toll at a rear position along an axis from an opening is measured by a non-contact displacement sensor, frequency analysis of vibration displacement is performed, and movement of the drill tool is controlled from contributions to vibration displacement of a prescribed frequency on a side with a lower frequency than 200 Hz.SELECTED DRAWING: Figure 1
Inventors:
NAKAGAWA JUNICHI
Application Number:
JP2021180201A
Publication Date:
May 18, 2023
Filing Date:
November 04, 2021
Export Citation:
Assignee:
DAIDO STEEL CO LTD
International Classes:
B23B49/00; B23B41/02; B23B47/18; B23Q17/22
Attorney, Agent or Firm:
Patent Attorney Corporation Mutsuki Partners
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