Variable-rigidity inflatable rubber tire power vibration reduction cutter bar

Abstract

The invention provides a variable-rigidity inflatable rubber tire power vibration reduction cutter bar, and relates to the technical field of large length-diameter ratio cutter bar vibration reduction. The variable-rigidity inflatable rubber tire power vibration reduction cutter bar comprises a cutter head, a cutter bar body and a rubber tire power vibration reduction device, the cutter head is detachably connected with the cutter bar body, the cutter bar body is provided with a cavity, and the rubber tire power vibration reduction device is located in the cavity; the rubber tire power vibration reduction device comprises a vibration reduction mass block and at least two sets of vibration reduction assemblies, each vibration reduction assembly comprises a rubber tire and an air core, an annular groove is formed in the vibration reduction mass block, the rubber tires annularly sleeve the outer side of the vibration reduction mass block, and the air cores are used for being connected with an air pump and inflating the rubber tires; the at least two sets of vibration reduction assemblies are correspondingly located at the two axial ends of the vibration reduction mass block. The rubber tires are arranged at the two ends of the vibration reduction device, the rigidity can be adjusted by changing the air pressure in the rubber tires, inflation of the rubber tires can be achieved by connecting the external air pump with the air cores, and rigidity adjustment can be achieved on the premise that parts such as the cutter head or the cutter bar body are not detached.

Description

technical field [0001] The invention relates to the technical field of vibration reduction of a tool rod with a large length-to-diameter ratio, in particular to a variable-rigidity pneumatic rubber-tyred dynamic vibration-damping cutter rod. Background technique [0002] In recent years, with the rapid development of basic processing and manufacturing industries, the machining accuracy of workpieces in heavy industries such as aerospace and automobile manufacturing has become higher and higher. It is widely used in the processing of similar parts. [0003] Due to the insufficient dynamic stiffness of the tool holder with a large length-to-diameter ratio, chatter often occurs in actual processing, which seriously affects the processing quality of the workpiece and the service life of the tool. At present, three kinds of vibration reduction technologies, namely active control, passive control and semi-active control, have been studied at home and abroad for the problem of lar...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a variable stiffness inflatable rubber tire dynamic vibration damping cutter bar, which is used to solve the difficulty in adjusting the stiffness of the traditional dynamic shock absorber in the large length-to-diameter ratio dynamic vibration damping tool bar in the prior art, and the adjustment accuracy is low. End stiffness can not be adjusted independently and other defects, to achieve a variable stiffness inflatable rubber tire dynamic damping tool bar, two rubber rings are set at both ends of the dynamic shock absorber, by changing the air pressure in the rubber ring during use It can achieve the purpose of changing the connection stiffness between the mass block and the tool rod, and the air pressure in the rubber tires at both ends of the dynamic shock absorber can be adjusted independently, the adjustment process is simple and the adjustment accuracy is high

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