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Passive damping boring rod with adjustable frequency and adjusting method thereof

A passive and dynamic vibration reduction technology, applied in the direction of the boring bar, can solve the problems of small frequency adjustment range and great influence on the rigidity of the boring bar, so as to achieve the effect of improving stiffness and structural damping, improving vibration damping ability, and saving internal space

Pending Publication Date: 2019-01-18
JILIN UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a frequency-adjustable passive vibration-damping boring bar and an adjustment method to solve the existing problems of small frequency adjustment range and great influence on the rigidity of the boring bar

Method used

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  • Passive damping boring rod with adjustable frequency and adjusting method thereof
  • Passive damping boring rod with adjustable frequency and adjusting method thereof
  • Passive damping boring rod with adjustable frequency and adjusting method thereof

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Experimental program
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Embodiment Construction

[0034] Such as figure 1 As shown, it includes the cutter head connection block 1, the boring bar damping section 2 and the boring bar clamping section 3, wherein the cutter head connecting block 1, the boring bar vibration damping section 2 and the boring bar clamping section 3 are connected by threads in sequence, and the whole The damping boring tool is designed in segments, which can be combined according to actual needs to obtain the required length of the boring bar.

[0035] Such as figure 2 , 3 As shown, the damping section 2 of the boring bar includes a damping structure 201 and an adjusting gear set 202;

[0036] The damping structure 201 is arranged inside the cavity of the damping section 2 of the boring bar, including the shell 20101 of the damping section of the boring bar, the sliding support block 20102, the left-handed elastic damping rod 20103, the dynamic damping block 20104, and the right-handed elastic damping rod 20105, circular support 20106, miniatur...

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PUM

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Abstract

The invention relates to a passive damping boring rod with adjustable frequency and an adjusting method thereof, and belongs to the technical field of mechanical processing. The passive damping boringrod comprises a tool bit connecting block, a boring rod damping section and a boring rod clamping section, wherein the tool bit connecting block, the boring rod damping section and the boring rod clamping section are in threaded connection in sequence, the boring rod damping section comprises a damping structure and an adjusting gear group, and the adjusting gear group is in meshed connection with the damping structure. The passive damping boring rod with the adjustable frequency and the adjusting method thereof have the advantages that the structure is novel, the amplitude of cutting chatterin the machining process is reduced, the adaptability of the boring rod to various boring parameters is enhanced, the rigidity of a toolbar is improved, the structure is simple, and the maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to vibration damping components in the processing of deep hole parts. Background technique [0002] In engineering practice, there are many deep hole parts that need to be processed with a large length-to-diameter ratio boring tool. However, due to the poor rigidity of the large-length-to-diameter ratio boring bar, vibration is easily generated during processing, and this vibration will reduce the service life of the tool. , affect the machining accuracy and damage the surface of the workpiece, so it is very important to reduce the vibration amplitude of the boring bar in this case. [0003] Existing damping boring bars can be divided into active type and passive type according to design principles. Active damping boring bars usually require external energy supply, complex control algorithms and large space, so they have the disadvantages of high manufacturing cost an...

Claims

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Application Information

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IPC IPC(8): B23B29/02
CPCB23B29/022Y02P70/10
Inventor 周晓勤何世玉刘强刘赫然张旭王荣奇马梦
Owner JILIN UNIV
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