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Embedded damping vibration attenuation turning tool bar and method for deep cavity machining

A processing method and embedded technology, applied to lathe tools, metal processing equipment, turning equipment, etc., can solve the problems of high manufacturing cost, slow response, and complex structure of vibration-damping turning tool holders, and achieve simple and , fast response, and improved vibration reduction effect

Active Publication Date: 2021-06-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this disclosure is to address the defects in the prior art, and to provide an embedded damping and vibration-reduction turning tool holder for deep cavity processing. The block-shaped damper is placed in the square cavity of the tool bar, and it is interference fit with the square cavity Form damping, and control the effective overhang of the spring rod by adjusting the axial position of the mass block on the spring rod to achieve fixation, easy to use, firm and reliable, and solve the problem of complex structure, slow response, and manufacturing problems of most vibration-absorbing tool bars. high cost problem

Method used

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  • Embedded damping vibration attenuation turning tool bar and method for deep cavity machining
  • Embedded damping vibration attenuation turning tool bar and method for deep cavity machining
  • Embedded damping vibration attenuation turning tool bar and method for deep cavity machining

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Embodiment 1

[0038] In a typical implementation of the present disclosure, as shown in the figure, an embedded damping and vibration-absorbing turning tool holder for deep cavity machining is proposed.

[0039] It mainly includes a cutter bar 11, a damper and a working head. The cutter bar body is provided with a groove, and the damper is arranged in this groove. The working head is connected to one end of the cutter bar. The groove acts as a follow-up structure to absorb the vibration of the cutter bar, so as to achieve the effect of vibration reduction.

[0040] Specifically, taking the hexagonal prism-shaped cutter bar as an example, the side of the cutter bar is provided with a groove, and the groove forms a square cavity 4 structure for accommodating the damper, and the damper and the square cavity have an interference fit. When the tool bar vibrates, the damper acts as a sub-vibration system, which can absorb the vibration of the mass block, and generate electricity through the piezo...

Embodiment 2

[0064] In another typical embodiment of the present disclosure, as shown in the figure, a deep cavity machining method is proposed, using the embedded damping and vibration-absorbing turning tool holder for deep cavity machining as described in Embodiment 1.

[0065] Include the following steps:

[0066] Piezoelectric ceramics are arranged on two sets of opposite faces of the mass block to form a damper, and the damper is placed in the square cavity of the cutter bar as a whole to form an interference fit, and the cover is fastened on the cavity, and the cover is in contact with the piezoelectric ceramics;

[0067] Install the cutter bar on the lathe, install the turning blade on the end cutter head, one end of the lead wire is connected to the piezoelectric ceramic through the cover, and the other end is connected to the external acquisition device, and the deep cavity processing is performed through the turning blade;

[0068] The vibration of the tool bar is converted into...

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Abstract

The disclosure provides an embedded damping vibration attenuation turning tool bar and method for deep cavity machining and relates to the field of turning equipment. The embedded damping vibration attenuation turning tool bar comprises a tool bar and a damper; one end of the tool bar is connected with a turning tool blade; a square cavity is formed on the side face of the tool bar; the damper is in interference fit in the square cavity; the damper comprises a mass block, an elastic piece and piezoelectric ceramics; at least one face, in contact with the inner wall of the square cavity, of the mass block is connected with the piezoelectric ceramics; the elastic piece is arranged between the piezoelectric ceramics and the mass block; the piezoelectric ceramics are used for interacting with the inner wall of the square cavity under the vibration action of the tool bar to absorb vibration to generate electric energy; the block-shaped damper is placed in the square cavity of the tool bar and is in interference fit with the square cavity to form damping; effective overhanging of a spring rod is controlled by adjusting the axial position of the mass block on the spring rod so as to implement fixing; and the embedded damping vibration attenuation turning tool bar is simple to use, firm and reliable, and solves the problems of complex structure, slow response and high manufacturing cost of most vibration attenuation turning tool bars.

Description

technical field [0001] The disclosure relates to the field of turning equipment, in particular to an embedded damping and vibration-reduction turning tool holder and method for deep cavity machining. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Large overhanging tools are widely used in machining structural parts with deep holes and deep cavities. However, due to the large overhang of such a tool, the equivalent stiffness of the tool is reduced, and it is easy to cause strong cutting vibration, which affects the cutting efficiency, reduces the surface accuracy of the part and the tool life. [0004] The vibration reduction measures used in the existing tool bar vibration reduction include active vibration reduction and passive vibration reduction. Among them, the active vibration reduction is mainly to add a feedback control system t...

Claims

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Application Information

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IPC IPC(8): B23B27/00
CPCB23B27/002Y02P70/10
Inventor 宋清华王小娟刘战强王兵
Owner SHANDONG UNIV