Machine tool

Patent metadata

Field	Value
Publication number	US-10894292-B2
Application number	US-201716328460-A
Country	US
Kind code	B2
Filing date	Jun 19, 2017
Priority date	Aug 31, 2016
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

A machine tool includes a main spindle movably supported in an axial direction, and two gang tool posts disposed opposed to each other with an axis of the main spindle located therebetween. Each of the two gang tool posts is supported movably in X and Y directions that are perpendicular to the axial direction of the main spindle. Each of the two gang tool posts is provided with tools arranged parallel to each other in the Y direction. One of the two gang tool posts is movably disposed in a Z direction that is a same direction as the axial direction of the main spindle. Any one of the two gang tool posts is integrally provided with a turning tool base that turnably supports tools about a Y-axis along the Y direction.

First claim

The invention claimed is:

1. A machine tool comprising:
a main spindle movably supported in an axial direction thereof,
a second main spindle disposed opposed to the main spindle, and
two gang tool posts disposed opposed to each other with an axis of the main spindle therebetween,
wherein each of the two gang tool posts is supported movably in X and Y directions that are perpendicular to the axial direction of the main spindle, and each of the two gang tool posts is provided with tools that are arranged in the Y direction parallel to each other,
wherein one of the two gang tool posts is movably disposed in a Z direction that is a same direction as the axial direction of the main spindle such that the Z direction is parallel to the axial direction,
wherein the one of the two gang tool posts movably disposed in the Z direction is provided with an end surface tool base that moves together therewith, and
wherein an other gang tool post of the two gang tool posts is immovable in the Z direction and integrally provided with a turning tool base that turnably supports tools about a Y-axis along the Y direction.

2. The machine tool according to claim 1 , further comprising
a second main spindle tool base disposed opposed to the turning tool base with the axis of the main spindle located therebetween, the second main spindle tool base attached with tools for machining a material held by the second main spindle.

3. The machine tool according to claim 1 ,
wherein the two gang tool posts are respectively disposed on a front side and a rear side of the machine tool with the axis of the main spindle therebetween so that the one of the two gang tool posts movable in the Z direction is disposed on the rear side opposed to a work area for an operator on the front side of the machine tool.

4. A machine tool comprising:
a main spindle movably supported in an axial direction thereof,
a second main spindle disposed opposed to the main spindle,
a first gang tool post and a second tool post disposed opposed to each other with an axis of the main spindle therebetween, wherein the first and second gang tool posts are supported movably in X and Y directions that are perpendicular to the axial direction of the main spindle, and comprise tools that are arranged in the Y direction parallel to each other, and wherein the first gang tool post is movably disposed in a Z direction and the second gang tool post is immovable in the Z direction, the Z direction being a same direction as the axial direction of the main spindle and parallel to the axial direction of the main spindle,
an end surface tool base disposed on the first gang tool post to move together with the first gang tool post, and
a turning tool base integrally disposed on the second gang tool post to turnably support tools about a Y-axis along the Y direction.

5. The machine tool according to claim 4 , further comprising
a second main spindle tool base disposed opposed to the turning tool base with the axis of the main spindle located therebetween, the second main spindle tool base attached with tools for machining a material held by the second main spindle.

6. The machine tool according to claim 4 ,
wherein the first and second gang tool posts are arranged in the X direction with the axis of the main spindle therebetween,
wherein the second gang tool post is disposed on a front side of the machine tool next to a work area for an operator, and the first gang tool post is disposed on a rear side of the machine tool opposed to the work area.

Assignees

• Citizen Watch Co Ltd
• Citizen Machinery Co Ltd

Inventors

• Maehara Tomonori
• Shida Tadayasu
• Kataoka Yohichi

Classifications

• B23B11/00

  Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling {(B23B3/065 and B23B3/16 take precedence; machines incorporating a plurality of sub- assemblies, each capable of performing a metal-working operation, the sub-assemblies being arranged to operate simultaneously at different stations B23Q39/04)} · CPC title

• B23B7/06

  with sliding headstock · CPC title

• B23Q17/0909 Primary

  Detection of broken tools · CPC title

• B23B3/16 Primary

  Turret lathes for turning individually-chucked workpieces {(turrets B23B29/24)} · CPC title

• B23Q17/22

  for indicating or measuring existing or desired position of tool or work {(B23Q16/005 takes precedence)} · CPC title