Title:
VIBRATION MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/029404
Kind Code:
A1
Abstract:
To provide a vibration measurement device for a rotating tool gripped by a tool holder that is connected to a main shaft and axially rotates in cooperation with the main shaft, the vibration measurement device comprises: a pair of acceleration sensors mounted symmetric to each other on a rotation axis on the horizontal plane with respect to a rotation axis of the rotating tool; an amplifier circuit that matches the impedance of acceleration information from the acceleration sensors and amplifies a voltage; a low-pass filter that removes a predetermined high frequency from an output signal of the amplifier circuit; and a subtraction circuit and an addition circuit that output a parallel vibration signal in the XY direction and a vibration signal in the rotation direction from the output signal of the low-pass filter, wherein the output signal having a high resolution waveform and including frequency information from the subtraction circuit and the addition circuit is A/D converted, is processed as transmission data, and is transmitted to the outside as-is.
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Inventors:
YAMAMOTO KENGO
YAMANOUCHI TAKAYUKI
MURAKAMI KOJI
MATSUDA RYO
ARAKI MASAFUMI
SHIOTSU RYOGA
YAMANOUCHI TAKAYUKI
MURAKAMI KOJI
MATSUDA RYO
ARAKI MASAFUMI
SHIOTSU RYOGA
Application Number:
PCT/JP2020/030600
Publication Date:
February 18, 2021
Filing Date:
August 11, 2020
Export Citation:
Assignee:
YAMAMOTO METAL TECHNOS CO LTD (JP)
International Classes:
G01H17/00; B23K20/12; B23Q17/09; B23Q17/12
Foreign References:
| JP2018054611A | 2018-04-05 | |||
| JPH0885047A | 1996-04-02 | |||
| CN202411967U | 2012-09-05 | |||
| CN106625024A | 2017-05-10 |
Attorney, Agent or Firm:
YAMAGUCHI,Nobuyuki (JP)
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