A damping and vibration-reducing tool rod

Abstract

The invention relates to a damping and vibration reduction cutter rod. The knife rod includes: a knife handle (2) and a cutter head (1) arranged at the lower end of the knife handle (2), and a cylindrical cavity (4) is coaxially arranged in the knife handle (2). Damping particles (5) are sealed and filled in the cylindrical cavity (4). The present invention has the advantages that: 1) the anti-vibration cutter of the particle damping and vibration-reduction system is used in the vibration-damping cutter bar, which can realize a large length-to-diameter ratio at a relatively low cost, making the processing process simpler and more efficient. high. 2) The vibration-damping tool holder of the present invention can improve the machining precision of the tool and prolong the life of the tool. 3) At the same time, in mechanical processing, the use of vibration-damping tools can improve the quality of surface processing and greatly improve work efficiency, especially in boring tools, using this vibration-damping tool bar to bore and cut deep holes, improve the quality of the inner surface and speed up boring Cutting speed will help a lot.

Description

technical field [0001] The invention relates to the technical field of cutting tools for mechanical processing, in particular, the invention relates to a damping and vibration-reduction tool holder. Background technique [0002] In metal cutting, the cutting force will cause the tool holder to bend and chatter. Under the action of a certain force, the bending degree of the tool bar mainly depends on the static stiffness of the tool bar, and the vibration amplitude and frequency of the tool bar depend on the static stiffness and dynamic stiffness of the tool bar. For a common tool holder, the tool itself will vibrate when the length-to-diameter ratio (L / D) exceeds 4 times, making machining impossible. That is to say, when the length-to-diameter ratio of the tool holder is greater than 4 times, the rigidity of the tool itself obviously cannot meet the processing requirements. It is beneficial to reduce the overhang length of the tool holder and increase the diameter of the t...

AI Technical Summary

Problems solved by technology

The method of using cemented carbide steel as the tool material is now widely used. They are mainly used to replace the conventional one-piece tool holder, but this method does not have a good vibration reduction effect for tools with a larger length-to-diameter ratio. , especially when the tool is required to have a relatively complex shape and structure, its cost is particularly high

Therefore, the methods currently used to reduce the chatter vibration of the tool holder during the cutting process are less effective, and have the disadvantages of increasing the cost of the machining process.

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