Double-stage tuned mass damper vibration damping-based boring rod structure

A mass tuning and damper technology, applied in the field of damper vibration reduction, can solve the problems of limited number of dampers, unsatisfactory vibration suppression effect, etc., and achieve the effect of suppressing the occurrence of flutter

Inactive Publication Date: 2012-06-13
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The more dampers there are, the better the vibration suppression effect will be and the increase will decrease; however, due to practical problems such as space size and parameter adjustment, the number of dampers is limited
Therefore, the vibration suppression effect of each of the above-mentioned devices is not ideal.

Method used

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  • Double-stage tuned mass damper vibration damping-based boring rod structure
  • Double-stage tuned mass damper vibration damping-based boring rod structure
  • Double-stage tuned mass damper vibration damping-based boring rod structure

Examples

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Embodiment Construction

[0020] first as figure 1 , the boring bar structure based on the double-stage mass tuned damper vibration reduction of the present invention includes a boring bar 1, the front end of the boring bar 1 has an inner hole, and the first support rod 14, the second support rod 9, The first damping vibrator 15, the second damping vibrator 8, the damper cover 6, the pusher 2; the end of the first support rod 14 protrudes from the end of the boring bar 1 and fits with the boring bit head 12, and is fixed by screws 11. The other end of the first support rod 14 is threadedly connected to one end of the first damping vibrator 15, and the other end of the first damping vibrator 15 has a concave cavity, and the end of the concave cavity is closely matched with the damper cover 6, and is formed by four The 90° countersunk head screw is fixed with the nail 7; the first damping vibrator 15 is connected to the second damping vibrator 8 through the second support rod 9, and the second support ro...

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Abstract

The invention relates to a double-stage tuned mass damper vibration damping-based boring rod structure, and belongs to the technical field of damper vibration damping. The structure comprises a boring rod, wherein the front end of the boring rod is provided with an inner hole; a first supporting rod, a second supporting rod, a first damping vibrator, a second damping vibrator, a damper cover and a pusher are arranged in the inner hole; an adjusting screw passes through the hole wall of the boring rod and is pressed against the pusher; a spring and a spring washer is arranged between the pusher and the damper cover in turn; and the spring washer is contacted with the damper cover under the action of the spring. In the boring rod structure, the pusher pushes the spring to regulate and control the compression amount of the spring so as to regulate contact force between the spring washer and a damper system; meanwhile, the vibration frequency of a damper can be regulated by regulating theelongation of the first supporting rod and the second supporting rod. The structure has important application value in aspects of facilitating the flutter suppression of a boring process and ensuringfine boring quality, has the characteristic of simple and compact structure, and is easy to control.

Description

technical field [0001] The invention relates to a boring bar structure, in particular to a boring bar structure based on a dual-stage mass tuning damper for vibration reduction, and belongs to the technical field of damper vibration reduction. Background technique [0002] With the rapid development of today's society, various industries put forward higher requirements for machining. One of the most critical factors affecting machine processing performance is chatter; chatter suppression technology is the premise to ensure the quality of workpiece processing and improve the efficiency of machining, so it is particularly important. Among them, the deep hole processing technology is increasingly widely used in modern industrial aerospace, automobile industry, military manufacturing and other fields, and the processing quality requirements are also getting higher and higher. The boring process is in a semi-closed state, the overhang of the boring bar is long, the friction betw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B29/02
Inventor 王民张彦琳昝涛胡建忠
Owner BEIJING UNIV OF TECH
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