Machine tool with optimized orientation of vibration dampers

Patent metadata

Field	Value
Publication number	US-11325216-B2
Application number	US-202016818753-A
Country	US
Kind code	B2
Filing date	Mar 13, 2020
Priority date	Mar 15, 2019
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A machine tool includes a first machine element movable in a travel direction and having first and second side faces. The first and second side faces of the first machine element run parallel to the travel direction and are oriented at a right angle to each other. The first machine element is moved in the travel direction in a guideway of a second machine element by a drive unit in a positionally controlled manner. The machine tool further includes first and second vibration dampers which are oriented at a right angle to the travel direction and configured to dampen vibrations of the first machine element in respective vibration directions. At least one of the first and second vibration dampers is oriented to solely dampen a vibration in a vibration direction that is neither parallel to the first side face nor parallel to the second side face.

First claim

What is claimed is:

1. A machine tool, comprising:
a first machine element movable in a travel direction and having first and second side faces, said first and second side faces running parallel to the travel direction and oriented at a right angle to each other;
a second machine element having a guideway for guiding a movement of the first machine element;
a drive operably connected to the first machine element for moving the first machine element in the travel direction in a positionally controlled manner in the guideway of the second machine element; and
first and second vibration dampers disposed in a plane oriented perpendicular to the travel direction, wherein the first vibration damper is aligned with a first vibration direction of the first machine element and the second vibration damper is aligned with a second vibration direction of the first machine element, wherein at least one of the first and second vibration dampers is neither parallel to the first side face nor parallel to the second side face.

2. The machine tool of claim 1 , wherein the vibration direction of the vibration that is damped by the first vibration damper and the vibration direction of the vibration that is damped by the second vibration damper are oriented at a right angle to each other.

3. The machine tool of claim 1 , wherein the first and second vibration dampers are embodied in the form of active vibration dampers.

4. The machine tool of claim 1 , wherein the first and second vibration dampers are arranged on the first machine element.

5. The machine tool of claim 1 , further comprising:
an additional element at which or on which the first and second vibration dampers are arranged; and
a tool,
wherein the first machine element comprises a processing head and a spindle held in the processing head and operably connected to the tool for rotating the tool about a rotation axis, and
wherein the additional element is arranged between the first machine element and the processing head or arranged adjacent to the processing head.

6. The machine tool of claim 5 , further comprising a further drive operably connected to the additional element for rotating the additional element in a positionally controlled manner about a rotation axis in parallel relationship to the travel direction.

7. The machine tool of claim 5 , further comprising a further drive operably connected to the spindle for rotating the spindle in a positionally controlled manner about a rotation axis in parallel relationship to the travel direction.

8. The machine tool of claim 5 , wherein the processing head includes a handle configured to automatically release the processing head from the additional element, and wherein the additional element includes a handle configured to automatically release the additional element from the first machine element, said processing head being automatically connectable to the first machine element when the additional element is released from the first machine element.

Assignees

• Siemens Ag

Inventors

• Bretschneider Jochen
• Ladra Uwe
• Schäfers Elmar
• Schür Torsten

Classifications

• B23Q11/0032 Primary

  Arrangements for preventing or isolating vibrations in parts of the machine (B23B29/022, B23D47/005 take precedence; means for damping or suppressing vibrations, in general F16F) · CPC title

• F16F15/02

  Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems ({F16F15/005 takes precedence } ; layered products B32B; suppression of vibration in ships B63; {relieving load on bearings, using magnetic means F16C39/06}) · CPC title

• B23Q2220/006

  Spindle heads · CPC title

• B23Q1/621 Primary

  a single sliding pair followed perpendicularly by a single sliding pair · CPC title