Passive damper for inhibiting cutting vibration of thin-walled workpiece

A passive technology for thin-walled workpieces, which is applied in the field of cutting processing, can solve the problems of inconvenient adjustment of the vibration suppression bandwidth and easy damage to thin-walled workpieces, and achieve the effects of suppressing chatter, widening the adjustment range, and improving damping

Active Publication Date: 2021-03-05
BEIHANG UNIV +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to at least solve the problem that the clamping of the damper used for cutting in the prior art is easy to damage the thin-walled workpiece and the adjustment of the vibration suppression bandwidth is inconvenient. This purpose is achieved through the following technical solutions:

Method used

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  • Passive damper for inhibiting cutting vibration of thin-walled workpiece
  • Passive damper for inhibiting cutting vibration of thin-walled workpiece
  • Passive damper for inhibiting cutting vibration of thin-walled workpiece

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Embodiment Construction

[0041] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of cutting machining, and provides a passive damper for inhibiting cutting vibration of a thin-walled workpiece. The passive damper for inhibiting cuttingvibration of the thin-walled workpiece comprises a vacuum connecting unit, a vibration inhibiting unit and a bandwidth adjusting unit. The passive damper for inhibiting cutting vibration of the thin-walled workpiece provided by the invention is connected with the thin-walled workpiece in a vacuum adsorption manner through the vacuum connecting unit, the design of a connecting structure does not need to be conducted on different thin-wall workpieces, vacuum connection does not damage the thin-wall surfaces of the thin-wall workpieces, the vibration inhibiting unit converts and dissipates vibration energy of the thin-wall workpieces in a multi-damping coupling mode on the basis of the energy dissipation and vibration attenuation principle, so that the flutter phenomenon of the thin-wall workpieces in the milling process is inhibited; and the number of extended mass discs and extended damping discs can be adjusted through the bandwidth adjusting unit so as to adjust the vibration inhibition bandwidth, so that the adjusting range is large, and the convenience in operation is achieved.

Description

technical field [0001] The invention belongs to the technical field of cutting and processing, and in particular relates to a passive damper for suppressing cutting vibration of thin-walled workpieces. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] Thin-walled workpieces are ubiquitous in aerospace. The weak rigidity of thin-walled parts can easily cause cutting chatter, leading to a series of hazards such as deterioration of machined surface quality and increased tool wear. Moreover, with the rapid removal of thin-walled workpiece material and rapid changes in tool trajectory, the dynamic characteristics of thin-walled parts and cutting stability are difficult to predict accurately. [0004] Passive dampers are an effective method to suppress the vibration of thin-walled workpieces during cutting. For the cutting vibration of thin-walled workpieces, dynamic vibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/02F16F15/023F16F15/04
CPCF16F15/02F16F15/0232F16F15/046
Inventor 陈甜甜李道靖杨毅青刘争赵洪杰张泽
Owner BEIHANG UNIV
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