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Patent Searching and Data


Title:
ULTRASONIC VIBRATION APPLICATION TOOL, TRAVELING WAVE GENERATION DEVICE, AND ULTRASONIC MACHINING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/230883
Kind Code:
A1
Abstract:
[Problem] To provide an ultrasonic vibration application tool comprising a Langevin ultrasonic transducer that is incorporated into an ultrasonic machining device and is suitable for generating circular traveling waves. [Solution] An ultrasonic vibration application tool including: a cylindrical housing having a downwardly widening contact surface on the lower part of the inner peripheral surface, and provided with a threaded surface on the lower part of the outer peripheral surface; a Langevin ultrasonic transducer configured such that a polarization-treated piezoelectric element is bolted in a sandwiched state between a front mass, the upper part which is provided with a flange part having a contact surface fitted together with the contact surface of the housing, and a rear mass disposed above the front mass; and a ring-shaped counter weight, the upper part of the inner peripheral surface of which is provided with a threaded surface into which the threaded surface in the lower part of the outer peripheral surface of the housing is threaded, and the lower part of which has an inner-peripheral extended part that comes into contact with the lower surface of the flange part and does not come into contact with the side surface of the front mass; vertical vibration of the front mass and flexural vibration in the center part of a flat surface of the flange part, which projects out in the same direction as said vertical vibration, being generated by the application of electric energy to the piezoelectric element, and arcuate vibration in a direction opposite to the direction of projection by said flexural vibration in the center part of the flat surface of the flange part being simultaneously generated in the outer peripheral surface of the ring-shaped counterweight by said energy application as well.

Inventors:
OHNISHI KAZUMASA (JP)
Application Number:
PCT/JP2019/021522
Publication Date:
December 05, 2019
Filing Date:
May 30, 2019
Export Citation:
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Assignee:
UWAVE CO LTD (JP)
International Classes:
B06B1/06; B23B1/00; B24B1/04; H01L41/053; H01L41/09; H02N2/16; B26D7/08
Domestic Patent References:
WO2018147445A12018-08-16
Foreign References:
JP2018038992A2018-03-15
JP2003088147A2003-03-20
JP2018176136A2018-11-15
Attorney, Agent or Firm:
YANAGAWA, Yasuo (JP)
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