Patents by Inventor Peng-Jui CHEN

Peng-Jui CHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for monitoring spindle preload amount
    Patent number: 10942074
    Abstract: A method for monitoring the spindle preload amount of a spindle by: S1 obtaining a spindle preload amount through a PPC Preload Analyzer; and S2 obtaining an axial force sensor output of the spindle through an axial force sensor, wherein the axial force sensor output is calibrated using the spindle preload amount that is obtained through the PPC Preload Analyzer; establishing a relationship between the spindle preload amount and the axial force sensor output, then regarding the axial force sensor output as the spindle preload amount, and then monitoring the spindle preload amount by monitoring the axial force sensor output.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: March 9, 2021
    Assignee: Precision Machinery Research & Development Center
    Inventors: Tadao Tsuneyoshi, Peng-Jui Chen, Chi-Cheng Kuo, Tung-Yi Lu, Hsing-Chieh Huang
  • METHOD FOR MONITORING SPINDLE PRELOAD AMOUNT
    Publication number: 20200033210
    Abstract: A method for monitoring the spindle preload amount of a spindle by: S1 obtaining a spindle preload amount through a PPC Preload Analyzer; and S2 obtaining an axial force sensor output of the spindle through an axial force sensor, wherein the axial force sensor output is calibrated using the spindle preload amount that is obtained through the PPC Preload Analyzer; establishing a relationship between the spindle preload amount and the axial force sensor output, then regarding the axial force sensor output as the spindle preload amount, and then monitoring the spindle preload amount by monitoring the axial force sensor output.
    Type: Application
    Filed: October 9, 2018
    Publication date: January 30, 2020
    Inventors: Tadao TSUNEYOSHI, Peng-Jui CHEN, Chi-Cheng KUO, Tung-Yi LU, Hsing-Chieh HUANG