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Tool spindle and machine tool including same

By installing a vibration attenuation device at the rear end of the tool spindle and using rigid components and tuned mass components to adjust the natural frequency, the problem of vibration of the B-axis rotating tool spindle is solved and the cutting performance and dynamic rigidity are improved.

Pending Publication Date: 2019-06-14
DN SOLUTIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively weak structure having the rigidity of the rotating mechanism device connected to the tool spindle, vibration occurs at the front end of the tool spindle on which a cutting tool is mounted, and thus there is a problem that the cutting performance is lowered.

Method used

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Examples

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Embodiment Construction

[0030] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] In each drawing of the present invention, for the sake of clarity of the present invention, the size of the structure is shown enlarged compared to the actual size.

[0032] In the present invention, terms such as first and second may be used to describe various constituent elements, but these constituent elements should not be limited by these terms. These terms are used only for the purpose of distinguishing one constituent element from another.

[0033] The terms used in the present invention are used only to describe specific examples, and are not intended to limit the present invention. Expressions in the singular include expressions in the plural unless clearly defined differently in the context. In this application, terms such as "comprising" or "having" should be understood as used to designate the existence of features, number...

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PUM

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Abstract

A tool spindle for a machine tool comprises: a tool spindle, which is rotatable and has a tool mounted on the front end thereof; and a vibration damping device mounted at the rear end of the tool spindle so as to damp cutting vibration generated at the front end of the tool spindle, and having a rigid member coupled to the rear end of the tool spindle and a tuned mass member elastically supportedby the rigid member.

Description

technical field [0001] The invention relates to a tool spindle and a machine tool including the same. More specifically, it relates to a tool spindle capable of B-axis rotation and a five-axis vertical machining center including the same. Background technique [0002] The compound processing machine may include a tool spindle capable of B-axis rotation. The B-axis tool spindle may be configured to be rotatable by a rotation mechanism arrangement of the B-axis indexing device. However, due to the relatively weak structure having the rigidity of the rotating mechanism device connected to the tool spindle, vibration occurs at the front end of the tool spindle on which a cutting tool is mounted, and thus there is a problem that cutting performance is reduced. Contents of the invention [0003] technical issues [0004] An object of the present invention is to provide a tool spindle capable of improving cutting performance by reducing vibration and increasing vibration dampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/04B23Q11/00B23Q5/54
CPCB23Q5/04B23Q11/00B23Q5/54B23Q11/0032B23Q1/70B23Q5/043B23Q11/0035B23C2250/16B23Q5/58Y10T409/304312B23Q2220/004B23C1/14B23Q1/623Y10T409/305656Y10T409/307672B23C1/12B23Q2220/006Y10T409/309352
Owner DN SOLUTIONS CO LTD