Vibration-absorbing tool holder
A technology of cutter bar and damping layer, which is applied in the direction of boring bar, drilling/drilling equipment, boring/drilling, etc.
Inactive Publication Date: 2011-03-30
CAPITAL AEROSPACE MACHINERY
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Abstract
The invention relates to a damping tool holder suitable for deep hole boring. The vibration-damping cutter bar includes an outer jacket and an inner sleeve. A tool seat and a nozzle connected to the coolant pipeline are arranged on the top of the cutter bar. An O-ring and an O-ring are arranged between the outer jacket and the inner sleeve. The vibration-damping layer formed by the flat washer 1 is connected with the adjustment nut 1 at the end of the vibration-damping layer formed by the O-ring 1 and the flat washer 1, and the adjustment nut 1 is placed in the jacket, which is a regular octagonal structure, at the end of the tool bar. The end is equipped with a counterweight, and the tool holder can be replaced with an extended tool holder. The vibration-damping tool rod of the present invention effectively solves the problem of the resonance of the tool rod, and the resonance frequency can be changed by adjusting the deformation of the vibration-damping layer by adjusting the nut, thereby reducing the resonance and improving the dimensional accuracy and surface quality of the product; the regular octagon of the jacket The structure greatly improves the rigidity of the tool holder. The invention adopts ordinary materials, has simple structure and low price, and can fully meet the complex damping requirements.
Description
Vibration-absorbing tool holder technical field [0001] The present invention relates to a tool bar, in particular to a damping tool bar suitable for deep hole boring. Background technique Miniaturized high-precision warhead aluminum-lithium alloy shell is thin-walled conical, and shell length is 1280mm, and diameter is maximum It is ф560mm, the smallest part is ф120mm, the thinnest part is only 2.5±0.05mm, and the surface roughness is required to reach Ra3.2. When processing this miniaturized high-precision warhead aluminum-lithium alloy shell, due to the long length of the ordinary tool holder, its rigidity, resonance and other factors Because the dimensional accuracy and surface roughness of deep hole boring processing parts do not meet the requirements of the drawings, they cannot be used. while processing can be used The foreign vibration-damping tool holder, the cutter body is made of conical solid carbide, and the vibration-damping adopts hydraulic system, the s...
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IPC IPC(8): B23B29/02B23B41/02B23B41/16
Inventor 郝丁毛京伟
Owner CAPITAL AEROSPACE MACHINERY
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