A damping and vibration-reducing tool rod

A tool holder and damping technology, which is applied to metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., can solve the problems of inability to reduce vibration, complex processing process, and high cost, and reduce vibration and noise , The processing process is simple, the effect of prolonging the life

Inactive Publication Date: 2011-12-14
INST OF PROCESS ENG CHINESE ACAD OF SCI +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • A damping and vibration-reducing tool rod
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Effect test

Embodiment 1

[0034] The particle size ranges from 0.02 mm to 5 mm, and the particle size ranges from 0.02 mm to 5 mm. According to the volume of the cutter bar cavity, take a certain amount of particles according to 80% to 85% % filling rate is filled into the cavity of the milling tool holder; at the same time, 10% to 15% of viscous liquid is filled; according to image 3 The particle damping and vibration-absorbing tool holder is formed after sealing as shown, which is mainly used for vibration and noise reduction of milling cutter tool holders.

Embodiment 2

[0036] Example 2 of a particle damping tool holder: when milling a hollow workpiece of 500mm×500mm×400mm, particles of a composite material with a certain shape with high external vibration damping characteristics and high toughness at the core are used, and the particle size ranges from 0.02 mm to 5 mm, according to the volume of the cavity of the cutter bar, take a certain amount of particles and fill it into the cavity of the milling tool bar at a filling rate of 80% to 85%; at the same time fill with 10% to 15% of viscous liquid; according to image 3 The particle damping and vibration-absorbing tool rod is formed after sealing as shown in the figure. The vibration of the tool rod is very small, and the average vibration displacement (dimensionless) is 37. The surface of the workpiece to be processed is very smooth, such as Figure 5 shown.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/00
Inventor 肖望强段东平边贺川李威邓乐
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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