WO2013111687A1 - 振動計測装置及び振動計測方法 - Google Patents
振動計測装置及び振動計測方法 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
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- the present invention relates to a vibration measuring apparatus and a vibration measuring method for measuring the vibration of a product accompanied by vibrations such as a motor, an engine, and an automatic transmission.
- Products that emit vibrations such as motors, engines, and automatic transmissions, are shipped after manufacturing and before the shipment, the vibrations generated by the products are measured with a vibration measuring device to confirm that the products are free of abnormalities.
- This vibration measuring apparatus 101 includes a vibration sensor 102, a sensor holder 103 with the vibration sensor 102 attached to the tip, and the vibration sensor 102 via the sensor holder 103 as a measurement surface (hereinafter referred to as a measurement surface) of the object 104 to be measured. And an air cylinder 105 that contacts and separates from 104a.
- the vibration sensor 102 is housed in the sensor holding unit 106 below the sensor holder 103.
- An opening 107 is formed on the lower surface of the sensor holding portion 106, and a locking claw 108 is provided around the opening 107.
- the vibration sensor 102 has a contact portion 102b having a slightly smaller diameter than the opening 107 on the lower surface of the sensor main body 102a, and an elastic body 109 such as urethane is bonded to the upper surface.
- the contact portion 102b slightly protrudes from the opening 107 of the sensor holding portion 106, and the stepped portion 110 between the sensor main body 102a and the contact portion 102b is held freely by the locking claw 108.
- a rod 112 urged by a compression spring 111 is accommodated in the sensor holder 103, and a head portion 113 at the lower end of the rod 112 is in elastic contact with the upper surface of the vibration sensor 102.
- the vibration sensor 102 is held freely by the locking claw 108 at the stepped portion 110 between the sensor main body 102a and the contact portion 102b, so that the lower surface of the contact portion 102b of the vibration sensor 102 is retained. Even if the sensing surface is not parallel to the measurement surface 104 a of the object 104 to be measured, the vibration sensor 102 is tilted when the vibration sensor 102 is pressed against the measurement surface 104 a, and the sensing surface of the vibration sensor 102 and the measurement surface 104 a of the object 104 to be measured are detected. However, there is a problem as described below. (1) The restraining force by the compression spring 111 acts on the vibration sensor 102 and adversely affects vibration measurement.
- the present invention solves the above-mentioned conventional problems, eliminates the restraining force due to a compression spring and the like, enables more accurate vibration measurement, and can easily cope with a case where there is a height difference on the measurement surface.
- the object is to provide a vibration measuring device.
- a vibration sensor a sensor holder fitted with the vibration sensor to a tip portion and attached so as to be movable up and down, and the vibration sensor are brought into contact with and separated from the measurement surface of the object to be measured via the sensor holder.
- the vibration sensor includes a measurement base plate provided with a flange-shaped protrusion and a vibration measuring element on the upper surface side, and includes a magnet on the lower surface side
- the sensor holder includes an opening for projecting a magnet at a lower end of the vibration sensor on a lower end side, and a protrusion engaging portion that engages with a lower surface of a flange-shaped protrusion of the fitted vibration sensor.
- the sensor holder is divided into a plurality of parts, and upper ends thereof are connected by a connecting part.
- the flange-like protrusion of the vibration sensor and the protrusion engaging portion of the sensor holder include a positioning pin and a pin fitting hole that fit into each other. , The positioning pin is released from contact with the lower end portion of the pin fitting hole at the time of vibration measurement, and after the vibration measurement is finished, when the sensor holder is lifted, the positioning pin comes into contact with the lower end portion of the pin fitting hole so that the vibration sensor is
- the lower end part is provided with the inclined surface located in the center part of a sensor holder, It is characterized by the above-mentioned.
- a fourth aspect of the present invention is the vibration measuring apparatus according to any one of the first to third aspects, wherein the sensor contacting / separating mechanism is configured to move the vibration sensor from a standby position to a first measurement position. And a second lifting / lowering air cylinder for moving the vibration sensor from the first measurement position to a second measurement position lower than the first measurement position.
- the second lift operation air cylinder is the first lift operation air cylinder
- the vibration sensor is set to the first measurement position. After the movement, the vibration sensor is moved to the second measuring position together with the first lifting operation air cylinder by the second lifting operation air cylinder.
- a vibration sensor a sensor holder fitted with the vibration sensor at a tip portion and attached so as to be movable up and down, and the vibration sensor is brought into contact with and separated from the measurement surface of the object to be measured via the sensor holder.
- a sensor contact / separation mechanism The vibration sensor includes a measuring element plate provided with a flange-like protrusion and a vibration measuring element on the upper surface side, and includes a magnet on the lower surface side.
- the sensor holder is covered with a vibration measuring device having an opening for projecting a magnet at the lower end of the vibration sensor on a lower end side and a protrusion engaging portion that engages with a lower surface of a flange-like protrusion of the vibration sensor.
- a vibration measurement method for measuring vibration of a measurement surface of a measurement object The flange-shaped protrusion provided on the vibration sensor engages with the protrusion engaging portion provided on the sensor holder to prevent the vibration sensor from coming off the sensor holder, and the sensor holder is used to attach the sensor holder to the object to be measured.
- the vibration measurement is performed by disengaging the flange-shaped protrusion provided on the sensor holder and the protrusion engaging portion provided on the sensor holder.
- the vibration sensor is accommodated in the sensor holder so as to be movable in the axial direction, and the flange-like protrusion provided on the vibration sensor is provided on the sensor holder. And the vibration sensor is prevented from falling off the sensor holder.
- the sensor holder is moved toward the measurement surface of the object to be measured by the sensor contact / separation mechanism, the magnet is first attracted to the measurement surface and the vibration sensor is attached to the measurement surface.
- the sensor holder is further moved to the measurement side by the sensor contact / separation mechanism, only the sensor holder is lowered, and the flange-shaped protrusion provided on the sensor holder and the protrusion engaging portion provided on the sensor holder are not engaged (non-contacting).
- the vibration sensor can measure vibration in a state where the restraint from the sensor holder is released.
- the sensor holder is divided into a plurality of parts, the sensor holder divided on the outer periphery is arranged around the vibration sensor, and the upper ends of the divided sensor holders are arranged. By connecting at the connecting portion, the vibration sensor can be easily assembled into the sensor holder.
- vibration measurement can be performed in a state where the restraint of the sensor holder is released.
- the inclined surface provided at the lower end portion of the positioning pin comes into contact with the lower end portion of the pin fitting hole and returns the vibration sensor to the center portion of the sensor holder. It is possible to prepare for the next vibration measurement by correcting the positional deviation of the vibration sensor generated at the time.
- the second lifting / lowering operation air cylinder performs the first lifting / lowering operation. Since the vibration sensor is moved to the second measurement position together with the air cylinder for the cylinder, the stroke amount of the cylinder rod is compared with the case where the vibration sensor is moved to the second measurement position with a single lifting / lowering air cylinder.
- the vibration sensor can be moved to the second measurement position by using an air cylinder having a small amount.
- FIG. 3A is a cross-sectional view of a vibration sensor and a sensor holder portion
- FIG. 3B is a side view
- FIG. 3C is a cross-sectional view taken along the line CC of FIG. 3A.
- Explanatory drawing of the vibration measuring device of a prior art example Sectional drawing of the vibration sensor and sensor holder part of the vibration measuring device of a prior art example.
- the vibration measuring apparatus 1 includes a vibration sensor 2, a sensor holder 3 having the vibration sensor 2 attached to the tip, and the vibration sensor 2 for measuring an object to be measured via the sensor holder 3. And a sensor contact / separation mechanism 4 that contacts and separates from the surface 104a.
- the vibration sensor 2 includes a sensor main body 6 having a flange-like protrusion 5 on the top, and a plurality of vibration measuring elements 7 and connectors 8 attached to the upper surface side of the sensor main body 6. And a magnet 10 attached to the lower surface side of the sensor main body 6.
- Reference numeral 8 a denotes a harness connected to the connector 8.
- the magnet 10 is attached in a state of being fitted into a recess provided on the lower surface of the sensor main body 6, and the lower end of the magnet 10 slightly protrudes from the lower surface of the sensor main body 6.
- the flange-shaped protrusion 5 overlaps with a protrusion engaging portion 16 of the sensor holder 3 to be described later and prevents the sensor holder 3 from falling off.
- the flange-like projection 5 is formed with a pin fitting hole 11 into which a positioning pin 18 provided on the projection engaging portion 16 is inserted.
- the sensor holder 3 supports the vibration sensor 2 so that the vibration sensor 2 can move up and down in a state where the flange-shaped protrusion 5 of the vibration sensor 2 is engaged to prevent the vibration sensor 2 from falling off.
- the holder main body portions 12 and 13 and a connecting portion 14 in which the upper ends of the pair of left and right holder main body portions 12 and 13 are screwed together are configured.
- the pair of left and right holder main body portions 12 and 13 has a concave groove 15 on the inner peripheral surface, and a protrusion engaging portion 16 is formed below the concave groove 15 so that the flange-shaped protrusion 5 of the vibration sensor 2 overlaps. Yes.
- An opening 17 is formed between the protrusion engaging portions 16 of the pair of left and right holder main body portions 12 and 13 for projecting the lower end portion of the sensor main body portion 6 of the vibration sensor 2.
- the protrusion engaging portion 16 is provided with a positioning pin 18 that fits into the pin fitting hole 11 provided in the flange-shaped protrusion 5 when the flange-shaped protrusion 5 of the vibration sensor 2 is overlapped.
- the positioning pin 18 is formed to have a smaller diameter toward the tip, and a substantially conical inclined surface 18a is provided at the lower end. ing.
- the inclined surface 18a is capable of measuring vibration in a state where the engagement with the lower end portion of the pin fitting hole 11 is released and the restraint from the sensor holder 3 is released during vibration measurement. become. Further, when the sensor holder 3 is raised after the vibration measurement is finished, the inclined surface 18a comes into contact with the lower end portion of the pin fitting hole 11, and the vibration sensor 2 is returned to the center portion of the sensor holder 3 to measure the vibration. It is possible to prepare for the next vibration measurement by correcting the positional deviation of the vibration sensor 2 that occurs at the time.
- the vibration sensor 2 is assembled to the sensor holder 3 as follows, for example. First, the vibration sensor 2 is configured by attaching the measuring base plate 9 and the magnet 10 to the sensor body 6. Next, a positioning pin 18 is inserted into the pin fitting hole 11 provided in the flange-shaped protrusion 5 of the vibration sensor 2 from below the pin fitting hole 11, and a pair of left and right holders are placed at positions opposed to the vibration sensor 2. The main body parts 12 and 13 are assembled. Thereafter, the vibration sensor 2 is assembled to the sensor holder 3 by connecting the upper end sides of the pair of left and right holder main body portions 12 and 13 with the connecting portion 14.
- the sensor contact / separation mechanism 4 includes a horizontal movement operation air cylinder 21 that moves the vibration sensor 2 directly above the measurement surface 104a of the object to be measured, and a standby right above the measurement surface 104a.
- the vibration sensor 2 located at a position (hereinafter referred to as standby height) is moved from the standby height to a first measurement position (hereinafter referred to as first measurement height A) or a second lower than the first measurement height.
- the first and second lifting and lowering operation air cylinders 22 and 23 (hereinafter referred to as the first lifting and lowering operation air cylinder 22 are referred to as X stroke cylinders, hereinafter) moved to the measurement position (hereinafter referred to as the second measurement height B).
- the second lifting / lowering air cylinder 23 is referred to as a Y stroke cylinder).
- the horizontal direction moving operation air cylinder 21, the X stroke cylinder 22, and the Y stroke cylinder 23 are provided with a speed controller.
- the horizontal moving air cylinder 21 is attached to a fixed surface 25 via a first bracket 24.
- the X stroke cylinder 22 is attached to the second bracket 26.
- the second bracket 26 is attached to the horizontal moving air cylinder 21 side via the rail portion 27, and is moved in the horizontal direction along the rail portion 27 by the horizontal moving air cylinder 21.
- the cylinder 23 is moved up and down.
- the Y stroke cylinder 23 is attached to the third bracket 28.
- the third bracket 28 is attached to the lower end of the rod 22a of the X stroke cylinder 22 and follows the movement of the rod 22a.
- a vertical moving plate 29 is attached to the lower portion of the rod 23a of the Y stroke cylinder 23, and the sensor holder 3 and the vibration sensor 2 are attached to the tip of the rod 23a below the rod 23a.
- a hydro speed controller (hereinafter referred to as a hydro speed controller) 30 is attached to the third bracket 28. Further, the vertical moving plate 29 is provided with a scoping dog 31 for operating the hydro-speakon 30.
- the stroke amount Y of the Y stroke cylinder 23 has a length corresponding to the distance from the standby position to the first measurement height A, and the stroke amount X of the X stroke cylinder 22 is The length corresponds to the distance from the first measurement height A to the second measurement height B.
- the vibration sensor 2 Before the vibration measurement, the vibration sensor 2 is set at the standby position. When measuring vibration, first, the vibration sensor 2 is positioned directly above the measurement surface 104a by the horizontal moving air cylinder 21.
- the vibration sensor 2 is moved to the first measurement height A using the Y stroke cylinder 23.
- the magnet 10 is attracted and fixed to the measurement surface 104a of the object to be measured.
- the vibration sensor 2 when the rod 23a of the Y stroke cylinder 23 is lowered, only the sensor holder 3 is lowered with respect to the vibration sensor 2 attracted and fixed to the measurement surface 104a of the object 104 to be measured by the magnet 10, and the vibration sensor 2 The flange-shaped protrusion 5 and the protrusion engaging portion 16 of the sensor holder 3 are brought into a non-contact state, and the substantially conical inclined surface 18a of the positioning pin 18 and the pin fitting hole 11 are brought into a non-contact state. The vibration can be measured in a state where the restraint from the sensor holder 3 is released.
- the vibration sensor 2 is further moved to the second measurement height B using the X stroke cylinder 22.
- the vibration sensor 2 moves from the first measurement height A to the second measurement height B in the same manner as when the vibration sensor 2 is moved from the standby height to the first measurement height A.
- the magnet 5 is attracted and fixed to the measurement surface 104a of the object to be measured
- the rod 22a of the X stroke cylinder 22 is further lowered
- the magnet 10 is attracted and fixed to the measurement surface 104a of the object 104 to be measured.
- the sensor holder 3 is lowered with respect to the vibration sensor 2, and the flange-like protrusion 5 of the vibration sensor 2 and the protrusion engaging portion 16 of the sensor holder 3 are brought into a non-contact state. Vibration can be measured in a state where the constraint from 3 is released.
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Abstract
Description
(1)圧縮バネ111による拘束力が振動センサ102に作用し、振動の測定に悪影響を及ぼす。
(2)単一のエアシリンダ105で振動センサ102を上下動させて被測定物104の測定面104aに接離させているために、測定面104aに高低差の有る場合、例えば自動変速機試験装置において被測定物104として測定面104aの高さ位置の異なる自動変速機の振動を測定する場合に、高さの異なる測定面104aに振動センサ102を接離させるのが困難である。
上記振動センサは、上面側にフランジ状の突起および振動測定素子を設けた測定子板を備え、下面側に磁石を備え、
上記センサホルダは、下端側に上記振動センサの下端の磁石を突出させる開口と、嵌合した上記振動センサのフランジ状の突起の下面に係合する突起係合部を備えていることを特徴とする。
上記位置決めピンは、振動計測時には上記ピン嵌合孔の下端部との接触が解除され、振動計測終了後、センサホルダ上昇時に、上記ピン嵌合孔の下端部と接触して上記振動センサを上記センサホルダの中心部に位置させる傾斜面を下端部に備えていることを特徴とする。
上記振動センサは、上面側にフランジ状の突起および振動測定素子を設けた測定子板を備え、下面側に磁石を備え、
上記センサホルダは、下端側に上記振動センサの下端の磁石を突出させる開口と、上記振動センサのフランジ状の突起の下面に係合する突起係合部を備えた振動計測装置を使用して被測定物の測定面の振動を測定する振動測定方法であって、
上記振動センサに設けたフランジ状の突起がセンサホルダに設けた突起係合部に係合して、振動センサがセンサホルダから抜け落ちるのを防止し、センサ接離機構でセンサホルダを被測定物の測定面に向けて移動させて、先ず上記磁石を測定面に吸着させて振動センサを測定面に取り付け、更にセンサ接離機構でセンサホルダを測定面側に移動させて、センサホルダのみを下降させて、センサホルダに設けたフランジ状の突起とセンサホルダに設けた突起係合部を非係合状態にして振動の測定を行なうことを特徴とする。
振動センサ2が待機高さから第1の測定高Aさに移動する過程においては、先ず、磁石10が被測定物の測定面104aに吸着固定される。更に、Yストロークシリンダ23のロッド23aが下降すると、上記磁石10により被測定物104の測定面104aに吸着固定された振動センサ2に対して、センサホルダ3のみが下降して、振動センサ2のフランジ状の突起5と、センサホルダ3の突起係合部16が非接触状態になると共に、位置決めピン18の略円錐形の傾斜面18aとピン嵌合孔11が非接触状態となり、振動センサ2は、センサホルダ3からの拘束を解かれた状態で振動の計測が可能になる。
2…振動センサ
3…センサホルダ
4…センサ接離装置
5…フランジ状の突起
6…センサ本体部
7…振動測定素子
8…コネクタ
8a…コネクタに接続されたハーネス
9…測定子板
10…磁石
11…ピン嵌合孔
12,13…一対のホルダ本体部
14…連結部
15…凹溝
16…突起係合部
17…開口
18…位置決めピン
21…水平方向移動操作用エアシリンダ
22…第1の昇降操作用エアシリンダ(Xストロークエアシリンダ)
23…第2の昇降操作用エアシリンダ(Yストロークエアシリンダ)
Claims (6)
- 振動センサと、該振動センサを先端部に嵌合して上下動可能に取り付けたセンサホルダと、センサホルダを介して振動センサを被測定物の測定面に接離させるセンサ接離機構と、を備え、
上記振動センサは、上面側にフランジ状の突起および振動測定素子を設けた測定子板を備え、下面側に磁石を備え、
上記センサホルダは、下端側に上記振動センサの下端の磁石を突出させる開口と、上記振動センサのフランジ状の突起の下面に係合する突起係合部を備えていることを特徴とする振動計測装置。 - 上記センサホルダは、複数に分割されていて、上端部が連結部で連結されていることを特徴とする請求項1に記載の振動計測装置。
- 上記振動センサのフランジ状の突起と上記センサホルダの突起係合部は、互いに嵌り合う位置決めピンとピン嵌合孔を備え、
上記位置決めピンは、振動計測時には上記ピン嵌合孔の下端部との接触が解除され、振動計測終了後、センサホルダ上昇時に、上記ピン嵌合孔の下端部と接触して上記振動センサを上記センサホルダの中心部に位置させる傾斜面を下端部に備えていることを特徴とする請求項1又は2に記載の振動計測装置。 - 上記センサ接離機構は、上記振動センサを待機位置から第1の測定位置に移動させる第1の昇降操作用エアシリンダと、上記振動センサを上記第1の測定位置よりも低位の第2の測定位置に移動させる第2の昇降操作用エアシリンダと、を備えていることを特徴とする請求項1~3の何れかに記載の振動計測装置。
- 上記第2の昇降操作用エアシリンダは、上記第1の昇降操作用エアシリンダで上記振動センサを上記第1の測定位置に移動させた後に、上記第1の昇降操作用エアシリンダと共に上記振動センサを上記第2の測定位置に移動させることを特徴とする請求項4に記載の振動計測装置。
- 振動センサと、該振動センサを先端部に嵌合して上下動可能に取り付けたセンサホルダと、センサホルダを介して振動センサを被測定物の測定面に接離させるセンサ接離機構と、を備え、
上記振動センサは、上面側にフランジ状の突起および振動測定素子を設けた測定子板を備え、下面側に磁石を備え、
上記センサホルダは、下端側に上記振動センサの下端の磁石を突出させる開口と、上記振動センサのフランジ状の突起の下面に係合する突起係合部を備えた振動計測装置を使用して被測定物の測定面の振動を測定する振動測定方法であって、
上記振動センサに設けたフランジ状の突起がセンサホルダに設けた突起係合部に係合して、振動センサがセンサホルダから抜け落ちるのを防止し、センサ接離機構でセンサホルダを被測定物の測定面に向けて移動させて、先ず上記磁石を測定面に吸着させて振動センサを測定面に取り付け、更にセンサ接離機構でセンサホルダを測定面側に移動させて、センサホルダのみを下降させて、センサホルダに設けたフランジ状の突起とセンサホルダに設けた突起係合部を非係合状態にして振動の測定を行なうことを特徴とする振動計測方法。
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CN201380006439.9A CN104067095B (zh) | 2012-01-24 | 2013-01-18 | 振动测量装置和振动测量方法 |
MX2014008838A MX2014008838A (es) | 2012-01-24 | 2013-01-18 | Dispositivo de medicion de vibracion y metodo de medicion de vibracion. |
JP2013555245A JP5850064B2 (ja) | 2012-01-24 | 2013-01-18 | 振動計測装置及び振動計測方法 |
KR1020147020216A KR101675926B1 (ko) | 2012-01-24 | 2013-01-18 | 진동 계측 장치 및 진동 계측 방법 |
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CN106052998A (zh) * | 2016-07-14 | 2016-10-26 | 深圳市信维通信股份有限公司 | 振动器的测试系统 |
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- 2013-01-18 MX MX2014008838A patent/MX2014008838A/es unknown
- 2013-01-18 CN CN201380006439.9A patent/CN104067095B/zh not_active Expired - Fee Related
- 2013-01-18 KR KR1020147020216A patent/KR101675926B1/ko active IP Right Grant
- 2013-01-18 WO PCT/JP2013/050965 patent/WO2013111687A1/ja active Application Filing
- 2013-01-18 JP JP2013555245A patent/JP5850064B2/ja active Active
Patent Citations (6)
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JPS5237780U (ja) * | 1975-09-10 | 1977-03-17 | ||
JPH084201Y2 (ja) * | 1987-08-18 | 1996-02-07 | 東芝機械株式会社 | 鋳造製品取出し装置の昇降腕 |
JPH05389U (ja) * | 1991-06-25 | 1993-01-08 | 日本電気株式会社 | パレツト用ハンド |
JPH0737591U (ja) * | 1993-04-16 | 1995-07-11 | 村田機械株式会社 | ロボットハンド |
JPH0686034U (ja) * | 1993-05-27 | 1994-12-13 | 新日本製鐵株式会社 | ロボットによる振動測定に用いる振動検出器保持装置 |
JPH08201159A (ja) * | 1995-01-26 | 1996-08-09 | Omron Corp | 振動センサ取付装置 |
Cited By (1)
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CN106052998A (zh) * | 2016-07-14 | 2016-10-26 | 深圳市信维通信股份有限公司 | 振动器的测试系统 |
Also Published As
Publication number | Publication date |
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JPWO2013111687A1 (ja) | 2015-05-11 |
CN104067095A (zh) | 2014-09-24 |
MX2014008838A (es) | 2014-10-24 |
CN104067095B (zh) | 2016-12-07 |
KR101675926B1 (ko) | 2016-11-14 |
KR20140113698A (ko) | 2014-09-24 |
JP5850064B2 (ja) | 2016-02-03 |
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