Segmented power damping boring rod with guide function

Abstract

The invention discloses a segmented power damping boring rod with a guide function for deep hole machining. The segmented power damping boring rod comprises a solid rod body, a hollow rod body, an elastic positioning part, a damping block, a tool bit part and a guide part, wherein the hollow rod body and the solid rod body are connected with each other through threads and a positioning screw; the damping block is arranged in the center of the hollow rod body through the elastic positioning part; a gap between the inner wall of the hollow rod body and the damping block is filled with a viscoelastic body, namely, damping fluid; the tool bit part is arranged on the end part of the hollow rod body through threads and a positioning screw; the guide part is arranged on the end part of a tool bit through a screw, and can be detached and arranged freely. During cutting, the guide part plays a role in supporting and preventing vibration. The segmented power damping boring rod with the guide function disclosed by the invention is suitable for deep-long hole boring machining. Compared with a damping boring rod in the prior art, the segmented power damping boring rod with the guide function has the advantages that deep-long holes of smaller diameters and larger length-diameter ratios can be machined, the damping performance can be enhanced greatly, machining conditions of deep-long holes are improved greatly, and the machining accuracy and machining surface quality are improved.

Description

Technical field [0001] The invention relates to a boring bar, in particular to a sectioned dynamic damping boring bar with guide. Background technique [0002] The boring bar is the connecting rod between the boring machine and the corresponding tool head. During the boring process, the boring bar is in an overhang state, and the rigidity of the boring bar is relatively weak, especially when the processed hole is relatively deep (overhang ratio L / D Up to 20), the cutting force can easily deform the boring bar without guide support. In the deep and long hole boring process, the cutting force is mostly uneven, and the rigidity of the boring bar is relatively weak, which makes the boring bar easy to vibrate during the machining process, the quality and accuracy of the machined surface are difficult to guarantee, and the tool wear is serious. Processing efficiency is low. [0003] In order to reduce the vibration of the boring bar, the current general solutions are reducing the overh...

AI Technical Summary

Problems solved by technology

However, this kind of boring bar does not have a guide device, and the length-to-diameter ratio of deep holes is limited, and deep and long holes with a length-to-diameter ratio greater than 16 cannot be processed.

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