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Spindle equipment

A spindle and equipment technology, applied in the field of spindle equipment, can solve the problems of increasing the positioning error of the motion axis, reducing the accuracy of the machine trajectory, and stopping the operation, so as to achieve the effects of improving positioning accuracy, reducing load, and increasing life.

Active Publication Date: 2020-12-22
VIENNA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The problem with this solution is that, due to the reciprocating movement of the spindle, vibrations are introduced into the machine structure of the machine tool
Especially in the case of rolling element bearings, the force components introduced into the machine structure via such vibrations can lead to malfunctions and stoppages
In addition, the trajectory accuracy of the machine is reduced due to vibrations, and thus increased positioning errors around the axis of motion

Method used

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Examples

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Embodiment Construction

[0036]figure 1 A first embodiment of the spindle device 1 of a machine tool is shown, which can be used for milling, grinding, drilling or other cutting-type processing, for example. The spindle device 1 has a spindle 2 of a basically known structure, on which a clamping device for a tool holder 4 is usually constructed, which carries a tool 6, such as a milling tool.

[0037]The spindle device 1 is guided on the machine structure of the machine tool via a suitable linear guide, and can be adjusted relative to the machining position at least along the axes x, y and z shown. In accordance withfigure 1 In the schematic diagram, the electric drive of the spindle 2 and the cooling lubricant supply part of the tool 6 are not shown.

[0038]The rotor 8 of the spindle carrying the tool holder 4 is supported in the spindle housing 14 via two spindle bearings. In the illustrated embodiment, infigure 1 The spindle bearing on the left side of the center is additionally implemented as a solid element...

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Abstract

A spindle arrangement for a machine tool having a spindle (2) for driving a tool (6) and having at least one actuator (20) for vibrationally exciting the tool (6), characterized in that the spindle The device (2) is equipped with a compensating device (30) for at least partially compensating the inertial forces generated in the region of the main shaft by vibrational excitation.

Description

Technical field[0001]The present invention relates to a spindle device for a machine tool having a spindle for driving a tool and at least one actuator for vibrating the tool.Background technique[0002]Such spindle equipment is used for vibration-assisted cutting of workpieces and works in the high frequency range of several kilohertz in most cases, where the vibration amplitude is in the range of a few microns. Due to the superimposition of the vibration with the feed during the cutting process, under normal circumstances, improved chip breaking and accelerated chip removal can achieve increased productivity, and improved cooling lubricant delivery can achieve higher Tool life. In addition, the vibration superimposed manufacturing can realize the cutting processing of difficult-to-machine materials with the aid of standard tools. In the conventional way, this kind of cutting can only be achieved with special tools. This especially refers to the processing of carbon fiber composite m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/48B23Q5/027B23Q11/00B06B3/00
CPCB06B3/00B23Q1/4876B23Q5/027B23Q11/0035B23Q2230/004B23Q5/10B23Q11/0039B23Q2220/006B23Q2705/02
Inventor 费德瑞奇·布莱谢尔克里斯多佛·哈贝尔松马丁·福克斯
Owner VIENNA UNIVERSITY OF TECHNOLOGY