公开(公告)号：US20240009741A1

公开(公告)日：2024-01-11

申请号：US18470094

申请日：2023-09-19

Applicant: STAR MICRONICS CO., LTD.

Inventor： Rui OHTA ,  Shingo KURODA

IPC: B23B3/26

CPC classification number: B23B3/26

Abstract: The machine tool includes a second spindle rotatable about a second spindle axis while gripping a cut-off portion of a workpiece, a second tool post to which a rotary tool that machines the cut-off portion of the workpiece gripped by the second spindle is attached, and a second tool post base that supports the second tool post, in which the second tool post includes a power transmission mechanism that transmits a driving force for rotationally driving the rotary tool, a base table, and a tool mounting member to which the rotary tool is attached, the power transmission mechanism is disposed between the base table and the tool mounting member, a back side of the base table faces the second tool post base and the tool mounting member is disposed on a front side of the base table, and the tool mounting member is detachably attached to the base table.

公开(公告)号：US20220314331A1

公开(公告)日：2022-10-06

申请号：US17703234

申请日：2022-03-24

Applicant: STAR MICRONICS CO., LTD.

Inventor： Rui OHTA

IPC: B23B3/06

Abstract: An NC lathe including a first spindle, a second spindle capable of holding a cut-off workpiece delivered from the first spindle, a second tool post on which a plurality of tools are attachable to machine the workpiece held by the second spindle, a product receiver provided on the second tool post, a Y2-axis motor capable of moving at least one of the second tool post and the second spindle in a Y2-axis direction, and an X2-axis motor capable of moving at least one of the second tool post and the second spindle in an X2-axis direction. The second tool post has a plurality of tool mounting parts where the tools are attachable. The tool mounting parts are aligned at intervals in the Y2-axis direction. At least one of the tool mounting parts is arranged in a position overlapping the product receiver with respect to the X2-axis direction.