Patents by Inventor Shuichi Arata

Shuichi Arata 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).

  • Numerical control device which performs tapping operation by using a main spindle and a feed shaft
    Patent number: 9513619
    Abstract: In order to enable tapping to be performed precisely and with an appropriate machining time irrespective of the diameter of a tapping tool, a configuration of the present invention includes: a program analysis unit (12) that analyzes a loaded machining program and extracts thread-related information in tapping; a gradient determination unit (14) that determines acceleration regarding movement velocity of the main spindle or the feed shaft on the basis of the thread-related information obtained by the program analysis unit (12); and an interpolation and acceleration/deceleration processing unit (13) that generates a movement command for the main spindle and the feed shaft using the acceleration determined by the gradient determination unit (14). In addition, the gradient determination unit (14) varies the acceleration during acceleration/deceleration of the main spindle or the feed shaft in accordance with the diameter of a tapping tool.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 6, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kenji Nishiwaki, Shuichi Arata, Tomonori Sato
  • NUMERICAL CONTROL DEVICE
    Publication number: 20150081084
    Abstract: In order to enable tapping to be performed precisely and with an appropriate machining time irrespective of the diameter of a tapping tool, a configuration of the present invention includes: a program analysis unit (12) that analyzes a loaded machining program and extracts thread-related information in tapping; a gradient determination unit (14) that determines acceleration regarding movement velocity of the main spindle or the feed shaft on the basis of the thread-related information obtained by the program analysis unit (12); and an interpolation and acceleration/deceleration processing unit (13) that generates a movement command for the main spindle and the feed shaft using the acceleration determined by the gradient determination unit (14). In addition, the gradient determination unit (14) varies the acceleration during acceleration/deceleration of the main spindle or the feed shaft in accordance with the diameter of a tapping tool.
    Type: Application
    Filed: June 5, 2012
    Publication date: March 19, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenji Nishiwaki, Shuichi Arata, Tomonori Sato