Title:
SPINDLE UNIT OF MACHINE TOOL AND SYSTEM USING THE SAME
Document Type and Number:
Japanese Patent JP2023135298
Kind Code:
A
Abstract:
To provide a spindle unit of a machine tool which spindle unit dynamically measures working stress applied to the spindle unit, and enhances machining accuracy (enhancing quality and yielding percentage), improves abnormality detection and use-life of grindstones and tool blades so as to achieve cost reduction and the like; and to provide a system using the spindle unit of a machine tool.SOLUTION: A spindle unit 1 of a machine tool includes: a plurality of radial permanent magnets 16 arranged on a circumference with an axial direction of a main shaft defined to be a longitudinal direction; axial permanent magnets 21-1, 21-2 arranged in a direction perpendicular to an axis of the main shaft; a radial stress detection part A for detecting displacement of the radial permanent magnets 16; an axial stress detection part B for detecting displacement of the axial permanent magnets 21-1, 21-2; a wireless unit 22 for wirelessly transmitting an output of the radial stress detection part A and the axial stress detection part B; and a power source 23 for supply to the wireless unit 22.SELECTED DRAWING: Figure 1
Inventors:
TSURU TAIRA
Application Number:
JP2022040436A
Publication Date:
September 28, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
TOKYO SEIMITSU CO LTD
International Classes:
B23B19/02; B23Q17/00; B24B41/04; B24B45/00; B24B49/16; F16C19/06; F16C19/10; F16C35/12
Attorney, Agent or Firm:
Yoshinobu Kanayama
Shohei Sakai
Shohei Sakai
Previous Patent: Semiconductor device and its manufacturing method
Next Patent: Headlights, in-vehicle systems, and headlight control methods
Next Patent: Headlights, in-vehicle systems, and headlight control methods