The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2024
Filed:
Jun. 02, 2020
Makino Milling Machine Co., Ltd., Tokyo, JP;
Susumu Sugawara, Kanagawa, JP;
MAKINO MILLING MACHINE CO., LTD., Tokyo, JP;
Abstract
This narrow-hole electric discharge machine (), which performs electric discharge machining by relatively moving a narrow-hole electrode () attached to a main spindle () and a workpiece () attached to a table (), comprises: a positioning guide () which is attached to a guide arm () below the main spindle, through which the narrow-hole electrode is inserted such that a lower portion of the narrow-hole electrode is movable in the direction of an axis line (CL), and which supports the narrow-hole electrode; and a power feeder () which is provided at a predetermined position directly above the positioning guide of the guide arm, comes into direct contact with the narrow-hole electrode movable in the axis line direction and feeds power to the narrow-hole electrode, wherein the distance from a power feed position to the tip of the positioning guide is constant regardless of the length of the narrow-hole electrode.