Machine design comprising a machine tool

Patent metadata

Field	Value
Publication number	US-2016199955-A1
Application number	US-201414909463-A
Country	US
Kind code	A1
Filing date	Jul 31, 2014
Priority date	Aug 1, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The invention relates to a machine tool having a motor spindle for machining a workpiece. The motor spindle is supported by a stand, a turning bearing being provided at the stand, and the motor spindle is pivotable and positionable at the turning bearing about a first turning axis. At the motor spindle, a linear guide is provided, which enables an advancing movement of the tool parallel to the spindle axis. The machine tool has a workpiece support, which is movable and positionable along a preferably horizontally oriented workpiece guide and which is rotatable and positionable about a second turning axis.

First claim

1 . A machine tool for machining a workpiece comprising:
a motor spindle for the rotative actuation of a tool about a spindle axis, wherein the motor spindle is supported by a stand, and wherein a turning bearing is provided at the stand, and the motor spindle at the turning bearing is pivotable or positionable about a first turning axis, and a linear guide is provided at the motor spindle, which enables an advancing linear movement of the tool parallel to the spindle axis; a workpiece support, wherein the workpiece support is movable and positionable along a horizontally oriented workpiece guide describing a first linear axis; and, at least one guide is provided at the stand for the turning bearing in the direction of a vertically oriented second linear axis, wherein the turning bearing is movable and positionable along this at least one, wherein the workpiece support is rotatable and positionable about a second turning axis.

2 . The machine tool according to claim 1 , wherein the motor spindle is pivotable and positional at the turning bearing about a first turning axis by a controllable turning actuator.

3 . The machine tool according to claim 1 , wherein when the spindle axis is horizontally aligned, the turning axis of the turning bearing is located below the spindle axis.

4 . The machine tool according to claim 1 , wherein the stand is formed by two stand parts spaced apart, and that the turning bearing is synchronously movable and positionable via guide slides on guides of the stand parts.

5 . The machine tool according to claim 1 , wherein the turning bearing is situated between the two stand parts.

6 . The machine tool according to claim 1 , wherein the motor spindle has a spindle sleeve which is mounted on the linear guide in the direction of the spindle axis and which is displaceable and positionable vis-à-vis the motor spindle housing.

7 . The machine tool according to claim 1 , further comprising, in addition to the first motor spindle, at least one further motor spindle, which is pivotable and positionable about the first turning axis at the turning bearing.

8 . The machine tool according to claim 1 , wherein the respective spindle axes of the at least two motor spindles are oriented parallel to each other.

9 . The machine tool according to claim 1 , wherein an adjustment device is provided to adjust the distance between the motor spindles.

10 . The machine tool according to claim 1 , further comprising a spindle bed pivotable and positionable about the first turning axis is provided at the turning bearing and that the motor spindle is mounted via the linear guide in the direction of the spindle axis on or at the spindle bed.

11 . The machine tool according to claim 1 , wherein the spindle bed accommodates at least two motor spindles and/or that the spindle bed is configured in a cage- or tunnel-like manner, in particular, in an integral or flexurally stable manner.

12 . The machine tool according to claim 1 , further comprising a center position of the spindle axis pivotable about the turning axis of the turning bearing, in which the spindle axis is parallel to the first linear axis and is pivotable and positionable in a pivot range of −25° to +100°.

13 . The machine tool according to claim 1 , further comprising a tool magazine having a tool changing device, and that for the approach movement of the motor spindle, the motor spindle or the spindle sleeve is positioned along the linear guide parallel to the spindle axis for changing the tool at the tool changing device.

14 . The machine tool according to claim 1 , wherein the tool changing device is formed by a pivot arm movable by a pivot actuator and that the pivot arm is movable and positionable along the first (Z) and/or the second (Y) linear axis by an actuator.

15 . The machine tool according to claim 1 , wherein the turning axis is located in the vicinity of the tool holder of the retracted motor spindle when the spindle axis is horizontally aligned.

16 . The machine tool according to claim 1 , wherein the stand is formed by two stand parts spaced apart, and the stand is movable and positionable along a guide describing a first linear axis.

17 . The machine tool according to claim 12 , wherein the spindle axis is parallel to the first linear axis-and is pivotable and positionable in a pivot range of −15° to +90°.

Assignees

• Grob Gmbh & Co Kg
• Grob Gmbh & Co Kg

Inventors

• Grob H C Burkhart

Classifications

• B23Q1/4866 Primary

  followed perpendicularly by a single sliding pair · CPC title

• B23C1/12

  with spindle adjustable to different angles, e.g. either horizontal or vertical · CPC title

• Y10T409/307672

  Angularly adjustable cutter head · CPC title

• B23Q2220/006

  Spindle heads · CPC title

• Y10T409/308232

  and angular adjustment · CPC title