公开(公告)号：US20240307975A1

公开(公告)日：2024-09-19

申请号：US18671576

申请日：2024-05-22

Applicant: STAR MICRONICS CO., LTD.

Inventor： Tetsu KAWARASAKI

IPC: B23B31/107

CPC classification number: B23B31/1072

Abstract: In order to improve the machining freedom of a workpiece while suppressing a cost increase, a tool rest for a machine tool includes a cutting tool holder having a plurality of parallel cutting tool fixing grooves to which a shank of a cutting tool can be fixed, and a tool holder that holds a tool for machining a workpiece gripped by a spindle that is capable of rotating about a spindle axis AX0. The tool holder includes a shaft part that is fixed to the cutting tool fixing groove, and a holding part. The holding part holds, as the tool that performs machining about a machining axis AX4, at least one of a rotary tool and a non-rotary tool in which the machining axis AX4 extends along the spindle axis AX0.

公开(公告)号：US20170113279A1

公开(公告)日：2017-04-27

申请号：US15402417

申请日：2017-01-10

Applicant: STAR MICRONICS CO., LTD.

Inventor： Tetsu KAWARASAKI

IPC: B23B7/06 ,  B23Q11/08 ,  B23B25/04 ,  B23B13/12

CPC classification number: B23B7/06 ,  B23B13/12 ,  B23B25/04 ,  B23Q11/08

Abstract: The invention provides a machine tool eliminating the need of keeping the removed feed-mechanism-protection cover outside the machine. The machine tool comprises a headstock provided with a main spindle for gripping a workpiece; a driving unit provided with a feed mechanism extended along a main spindle axis to move the headstock in a main spindle axial direction; a supporting bed provided with a guide bush in a removable manner; a first cover mounted on the headstock to protect a portion of the feed mechanism with respect to the main spindle axial direction; and a second cover removably mounted on the headstock on the front side of the first cover to protect another portion of the feed mechanism. The second cover is detachably attached to the first cover when removed from the headstock.