Machine tool

Patent metadata

Field	Value
Publication number	US-9694427-B2
Application number	US-201514694406-A
Country	US
Kind code	B2
Filing date	Apr 23, 2015
Priority date	Apr 24, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

In a lathe equipped with a spindle for rotatably driving a work and a tool rest having a turret (rotary member) rotatably supporting a plurality of tools in an indexable manner about a horizontal axis, the tool rest is detachably installed on a tool rest installation portion formed so as to be positioned on an operator side so that the tools of the turret face the work side gripped by the spindle in an attachable and detachable manner.

First claim

What is claimed is:

1. A machine tool comprising:
a bed including a tool rest installation portion and a base section, the tool rest installation portion including a vertical wall and a part;
a spindle configured on the bed to rotatably drive a work; and
a tool rest having a rotary member supporting a plurality of tools in an indexable manner about a horizontal axis,
wherein the tool rest is detachably installed in an opening formed on the vertical wall of the tool rest installation portion formed so as to be positioned on an operator side so that the tools on the rotary member face a side of the work gripped by the spindle,
one longitudinal end of the part is connected to the vertical wall, and
the other longitudinal end of the part is connected to the base section, where the one longitudinal end is closer to the tool rest than the other longitudinal end to the tool rest.

2. The machine tool as recited in claim 1 ,
wherein the vertical wall includes first, second, and third linear portions which define the opening,
wherein the tool rest is inserted from the operator side or above, and
wherein the tool rest is detachably fixed to a flange part of the linear portions.

3. The machine tool as recited in claim 2 , wherein
the tool rest is attached to or detached from the tool rest installation portion using a carriage movable in a horizontal direction toward the tool rest installation portion.

4. The machine tool as recited in claim 1 ,
wherein the vertical wall includes first, second, and third linear portions which define the opening,
wherein the tool rest is inserted to the opening from the operator side, and
wherein the tool rest is detachably fixed to a flange part of the linear portions.

5. The machine tool as recited in claim 4 , wherein
the tool rest is attached to or detached from the tool rest installation portion using a carriage movable in a horizontal direction toward the tool rest installation portion.

6. The machine tool as recited in claim 1 , wherein
when the tool rest is attached, the plurality of tools are arranged between the spindle and the vertical wall in a first direction perpendicular to the horizontal direction.

7. The machine tool as recited in claim 6 , wherein
the tool rest is detachable in the first direction towards the operator side.

Assignees

• Dmg Mori Seiki Co Ltd

Inventors

• Akai Takayuki
• Matsumoto Yoshihiro
• Yokoyama Masashi
• Tanaka Toshiaki

Classifications

• B23B3/161

  lathe with one toolslide carrying one turret head · CPC title

• B23B29/287 Primary

  Turret toolholder with manually operated angular positioning devices · CPC title

• B23B3/30

  Turning-machines with two or more working-spindles, e.g. in fixed arrangement · CPC title

• B23B29/24

  Tool holders for a plurality of cutting tools, e.g. turrets {(indexing devices B23Q16/00)} · CPC title

• B23B3/02 Primary

  Small lathes, e.g. for toolmakers (specially designed for watchmakers G04D3/00) · CPC title