JPH0814871A - Pneumatic micrometer device - Google Patents

Pneumatic micrometer device

Info

Publication number
JPH0814871A
JPH0814871A JP14949994A JP14949994A JPH0814871A JP H0814871 A JPH0814871 A JP H0814871A JP 14949994 A JP14949994 A JP 14949994A JP 14949994 A JP14949994 A JP 14949994A JP H0814871 A JPH0814871 A JP H0814871A
Authority
JP
Japan
Prior art keywords
work
hole
air
probe
floating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14949994A
Other languages
Japanese (ja)
Other versions
JP3494315B2 (en
Inventor
Minoru Numamoto
実 沼本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Seimitsu Co Ltd
Original Assignee
Tokyo Seimitsu Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Seimitsu Co Ltd filed Critical Tokyo Seimitsu Co Ltd
Priority to JP14949994A priority Critical patent/JP3494315B2/en
Publication of JPH0814871A publication Critical patent/JPH0814871A/en
Application granted granted Critical
Publication of JP3494315B2 publication Critical patent/JP3494315B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide a pneumatic micrometer device for precisely measuring a bore diameter of a workpiece formed therein with a hole. CONSTITUTION:In such a condition that a workpiece 16 formed therein with a hole 30 is floated by the pressure of air jetted from a floating device 18, a measuring cylinder 14 having a jet nozzle 20 which jets air from its outer periphery is located in the hole 30 of the workpiece 16 so as to measure a bore diameter of the hole 30. Since the workpiece 16 is floated, it can be moved easily by pressure of air jetted from the jet nozzle 20, and can be stopped at the center position of a measuring cylinder 14. Accordingly, the measurement can be made in such a condition that the measuring cylinder 14 is always located at the center position of the hole of the workpiece, and accordingly, no positional error which is one of errors in measurement occurs, thereby it is possible to precisely measure the bore diameter of the workpiece 16 and to enhance the degree of repeatable accuracy.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の利用分野】本発明は空気マイクロメータ装置に
係り、特に、外周吹出しジェットノズルを有する測定子
をワークの孔内に配置して前記ワークの孔径を測定する
空気マイクロメータ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air micrometer device, and more particularly to an air micrometer device for measuring the hole diameter of a work by arranging a probe having an outer peripheral jet nozzle in the hole of the work.

【0002】[0002]

【従来の技術】図5は、従来の空気マイクロメータ装置
を示した概略断面図である。そして、ワーク1の孔内2
に、外周吹出しジェットノズル3、3を有する測定子4
を挿入してワーク1の孔径を測定する。この時、精度良
く測定する為には、ワーク1の孔2の中心位置に測定子
4を挿入させると共に、測定子4を孔2に対して直交さ
せて測定することが必要である。そして、従来の空気マ
イクロメータ装置では、ワーク1の孔2の中心位置に測
定子4を挿入させる為に、2枚のスラスト板5、5の間
にボール6、6…を挟んだフローティング機構で測定子
4をフローティングさせていた。
2. Description of the Related Art FIG. 5 is a schematic sectional view showing a conventional air micrometer device. Then, in the hole 2 of the work 1
And a stylus 4 having outer peripheral jet nozzles 3 and 3.
And the hole diameter of the work 1 is measured. At this time, in order to perform the measurement with high accuracy, it is necessary to insert the tracing stylus 4 in the center position of the hole 2 of the work 1 and make the tracing stylus 4 orthogonal to the hole 2. In the conventional air micrometer device, in order to insert the tracing stylus 4 in the center position of the hole 2 of the work 1, the floating mechanism in which the balls 6, 6 ... Are sandwiched between the two thrust plates 5, 5. The probe 4 was floating.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、従来の
空気マイクロメータ装置のように、測定子4をフローテ
ィングさせるフローティング機構は、測定子4のジェッ
トノズル3から吹き出させた圧縮エアがワーク1の孔壁
7に当たった反動力で測定子4をフローティングさせ
る。この為、大きなエア圧を必要とするので、測定子4
から吹き出されるエア圧程度では測定子4を充分にフロ
ーティングさせることができず、ワーク1の孔2内に挿
入された測定子4を孔2の中心位置に正確に移動させる
ことができないという欠点がある。この結果、測定子4
に測定誤差の1つの要因である姿勢誤差(測定子4がワ
ーク1の孔2の中心位置からズレたり、測定子4が孔2
に対して傾いたりする等によって生じる誤差)が生じる
ので、ワーク1の孔径を正確に測定することができない
と共に、繰り返し精度が悪くなるという問題があった。
However, like the conventional air micrometer device, in the floating mechanism for floating the tracing stylus 4, the compressed air blown out from the jet nozzle 3 of the tracing stylus 4 causes the hole wall of the work 1 to be compressed. The stylus 4 is floated by the reaction force that hits 7. For this reason, a large air pressure is required.
The probe 4 cannot be sufficiently floated by the air pressure blown out from the probe 1, and the probe 4 inserted in the hole 2 of the work 1 cannot be accurately moved to the center position of the hole 2. There is. As a result, contact point 4
Attitude error, which is one of the causes of the measurement error (stylus 4 deviates from the center position of hole 2 of workpiece 1,
However, there is a problem that the hole diameter of the work 1 cannot be accurately measured and the repeatability becomes poor.

【0004】また、図示しないが、測定テーブルから突
出した測定子に、作業者が手でワークを遊嵌配置する手
作業測定タイプの空気マイククロメータの場合にも、遊
嵌時に測定子が常にワークの中心位置に位置するように
配置できないので、ワークの孔径を正確に測定すること
ができないと共に、繰り返し精度が悪くなるという問題
があった。
Although not shown, even in the case of a manual measurement type air microphone chromameter in which a worker loosely fits and arranges a work piece on a measurement piece protruding from a measurement table, the measurement piece is always provided when loosely fitted. Since it cannot be arranged so as to be located at the center position of the work, there is a problem that the hole diameter of the work cannot be accurately measured and the repeatability becomes poor.

【0005】本発明は、このような事情に鑑みてなされ
たもので、ワークの孔径を精度良く測定することのでき
る空気マイクロメータ装置を提供することを目的とす
る。
The present invention has been made in view of the above circumstances, and an object thereof is to provide an air micrometer device capable of accurately measuring the hole diameter of a work.

【0006】[0006]

【課題を解決する為の手段】本発明は、前記目的を達成
する為に、外周吹出しジェットノズルを有する測定子を
ワークの孔内に挿入して前記ワークの孔径を測定する空
気マイクロメータ装置に於いて、前記ワークを浮上させ
るフローティング装置を備え、前記フローティング装置
でワークを浮上させた状態でワークの孔径を測定するこ
とを特徴とする。
In order to achieve the above object, the present invention provides an air micrometer device for measuring the hole diameter of a work by inserting a probe having an outer peripheral jet nozzle into the hole of the work. In this case, a floating device for floating the work is provided, and the hole diameter of the work is measured while the work is floated by the floating device.

【0007】[0007]

【作用】本発明によれば、ワークをフローティング装置
で浮上させた状態で、外周吹き出しのジェットノズルを
有する測定子を前記ワークの孔内に挿入してワークの孔
径を測定するようにした。これにより、ワークは浮いて
いるので、ジェットノズルからのエア圧で容易に動き、
測定子を中心とする位置に移動する。従って、常に、ワ
ークの孔の中心位置に測定子が位置した状態で測定する
ことができ、測定誤差の要因の1つである姿勢誤差が発
生しないので、ワークの孔径を精度良く測定することが
できると共に、繰り返し精度も向上する。
According to the present invention, the hole diameter of the work is measured by inserting the probe having the jet nozzle for blowing the outer circumference into the hole of the work while the work is levitated by the floating device. As a result, the work is floating, so it can be easily moved by the air pressure from the jet nozzle,
Move to the position around the contact point. Therefore, the measurement can always be performed in a state where the probe is positioned at the center position of the hole of the work, and the posture error which is one of the factors of the measurement error does not occur, so that the hole diameter of the work can be accurately measured. This can be done and the repeatability can be improved.

【0008】また、フローティング装置により、ワーク
を浮上させて測定子をワークの孔内に挿入するようにし
た。即ち、浮上したワークは小さな外力で動く状態にあ
るので、ワークが測定子に挿入する際に、ワークと測定
子とが接触した時の摩擦力を小さくできる。この摩擦力
は、例えばスタンド等に保持した測定子を、スタンドの
昇降による機械的な力でワークの孔内に挿入した時に、
ワークと測定子との接触により発生する摩擦力に比べて
極めて小さくできる。従って、測定子が破損しにくくな
り、測定子の寿命を長くすることができる。
Further, the work is floated by the floating device and the probe is inserted into the hole of the work. That is, since the levitated work is in a state of being moved by a small external force, it is possible to reduce the frictional force when the work comes into contact with the probe when the work is inserted into the probe. This frictional force is, for example, when a probe held on a stand or the like is inserted into the hole of the work by a mechanical force by raising or lowering the stand,
It can be made extremely small compared to the frictional force generated by the contact between the work and the probe. Therefore, the probe is less likely to be damaged, and the life of the probe can be extended.

【0009】[0009]

【実施例】以下添付図面に従って本発明に係る空気マイ
クロメータ装置の好ましい実施例について詳説する。図
1は本発明の空気マイクロメータ装置の第1実施例を説
明する概略断面図である。本発明の空気マイクロメータ
装置10は、空気マイクロメータ12(本体部である図
示しない空気源、指示計、レギュレータ等と、測定部で
ある測定子14とから構成される)と、被測定物である
ワーク16(孔径用ゲージマスタも含む)を浮上させる
フローティング装置18とから構成され、図1には、空
気マイクロメータ12の測定子14部分のみを示した。
また、測定子14は図示しないスタンドに取付けられて
自動昇降する。また、測定子14は筒状に形成されると
共に、測定子先端外周の対向する位置には、外周吹き出
しの2つのジェットノズル20、20が形成される。ま
た、ジェットノズル20は測定子14内に形成されたエ
ア通路22及び図示しないエアチューブを介して空気マ
イクロメータ12の本体部に連通され、ジェットノズル
20からは圧縮エア21が吹き出される。そして、空気
マイクロメータ12の本体部に設けられた指示計、例え
ば流量計(流量式)或いは圧力計(背圧式)で圧縮エア
21の流量或いは圧力を測定することによりワーク16
の孔径を測定する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of an air micrometer device according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic sectional view illustrating a first embodiment of an air micrometer device of the present invention. The air micrometer device 10 of the present invention includes an air micrometer 12 (which is composed of an air source (not shown) which is a main body, an indicator, a regulator, etc., and a probe 14 which is a measuring unit) and an object to be measured. A floating device 18 for levitating a certain work 16 (including a gauge master for hole diameter) is shown. In FIG. 1, only the probe 14 of the air micrometer 12 is shown.
The probe 14 is attached to a stand (not shown) and automatically moves up and down. Further, the tracing stylus 14 is formed in a tubular shape, and two jet nozzles 20, 20 for blowing the outer circumference are formed at opposing positions on the outer circumference of the tip of the tracing stylus. The jet nozzle 20 is communicated with the main body of the air micrometer 12 via an air passage 22 formed in the probe 14 and an air tube (not shown), and compressed air 21 is blown from the jet nozzle 20. Then, the work 16 is measured by measuring the flow rate or pressure of the compressed air 21 with an indicator provided in the main body of the air micrometer 12, for example, a flow meter (flow rate type) or a pressure gauge (back pressure type).
Measure the pore size of.

【0010】また、フローティング装置18は、図1及
び図2に示すように、ドーナッツ状に形成されたフロー
ティング装置18の上面には、互いに対向する複数のエ
アノズル24、24…が形成される。また、各エアノズ
ル24は、フローティング装置18本体内に形成された
リング状のエア通路26にそれぞれ連通すると共に、エ
ア通路26はエア配管28、エア圧調整弁(図示せず)
を介してコンプレッサ(図示せず)に接続される。そし
て、各エアノズル24からは所定圧力の圧縮エア25が
上向きに均等に吹き出される。
As shown in FIGS. 1 and 2, the floating device 18 has a plurality of air nozzles 24, 24, ... Further, each air nozzle 24 communicates with a ring-shaped air passage 26 formed in the main body of the floating device 18, and the air passage 26 includes an air pipe 28 and an air pressure adjusting valve (not shown).
To a compressor (not shown). Then, the compressed air 25 having a predetermined pressure is uniformly blown upward from each air nozzle 24.

【0011】次に、上記の如く構成された本発明の空気
マイクロメータ装置10の作用について説明する。ワー
ク16をフローティング装置18に載せた後、スタンド
を下降させて空気マイクロメータ12の測定子14をワ
ーク16の孔30内に挿入する。次に、コンプレッサを
作動してフローティング装置18の各エアノズル24か
ら所定圧力の圧縮エア25を上向きに均等に吹き出させ
る。これにより、ワーク16は各エアノズル24から吹
き出された圧縮エア25のエア圧によりフローティング
装置18から水平に浮き上がった状態に維持される。こ
の時、フローティング装置18から浮き上がる距離はエ
ア圧調整弁を調節することにより行われ、測定子14の
ジェットノズル20の高さまで浮上させる。この状態
で、測定子14のジェットノズル20から圧縮エア21
を吹き出してワーク16の孔径を測定する。この測定に
おいて、ワーク16は浮いているので、ジェットノズル
20からのエア圧で容易に動き、測定子14を中心とす
る位置に移動する。従って、常に、ワーク16の孔30
の中心位置に測定子14を位置させた状態で測定するこ
とができ、測定誤差の要因の1つである測定子14の姿
勢誤差が発生しないので、ワーク16の孔径を精度良く
測定することができると共に、繰り返し精度も向上す
る。
Next, the operation of the air micrometer device 10 of the present invention configured as described above will be described. After placing the work 16 on the floating device 18, the stand is lowered to insert the probe 14 of the air micrometer 12 into the hole 30 of the work 16. Next, the compressor is operated to blow the compressed air 25 of a predetermined pressure evenly upward from each air nozzle 24 of the floating device 18. As a result, the work 16 is maintained in a state of being horizontally floated from the floating device 18 by the air pressure of the compressed air 25 blown out from each air nozzle 24. At this time, the floating distance from the floating device 18 is adjusted by adjusting the air pressure adjusting valve, and the height is raised to the height of the jet nozzle 20 of the probe 14. In this state, from the jet nozzle 20 of the probe 14 to the compressed air 21
Is blown out to measure the hole diameter of the work 16. In this measurement, since the work 16 is floating, it is easily moved by the air pressure from the jet nozzle 20 and moves to the position around the contact point 14. Therefore, the hole 30 of the work 16 is always
Since it is possible to perform measurement with the probe 14 positioned at the center position of the probe, and the posture error of the probe 14 which is one of the factors of the measurement error does not occur, the hole diameter of the work 16 can be accurately measured. This can be done and the repeatability can be improved.

【0012】このように、本発明の空気マイクロメータ
装置10は、測定子14をフローティングさせる従来の
空気マイクロメータ装置とは異なり、ワーク16をフロ
ーティングさせるようにし、これにより測定精度の向上
及び繰り返し精度の向上を達成させることができた。次
に、図3に従って本発明の空気マイクロメータ装置10
の第2実施例を説明する。
As described above, the air micrometer device 10 of the present invention is different from the conventional air micrometer device in which the probe 14 is floated, and the work 16 is floated, thereby improving the measurement accuracy and repeating accuracy. It was possible to achieve the improvement of. Next, according to FIG. 3, the air micrometer device 10 of the present invention.
A second embodiment will be described.

【0013】図3は、本発明の第2実施例を説明する概
略断面図で、第1実施例と同じ部材や装置等は同符号を
付して説明する。第1実施例は、スタンドにより測定子
14を下降させてワークの孔内に挿入する例で示した
が、第2実施例では、空気マイクロメータ12とフロー
ティング装置18が一体構造になったもので、フローテ
ィング装置18の上面から突出した測定子14に、作業
員がワーク16を手で挿入配置する手作業測定タイプの
空気マイクロメータ装置10の場合である。
FIG. 3 is a schematic sectional view for explaining a second embodiment of the present invention. The same members, devices and the like as those of the first embodiment are designated by the same reference numerals. In the first embodiment, the stylus 14 is lowered by the stand and inserted into the hole of the work, but in the second embodiment, the air micrometer 12 and the floating device 18 are integrated. This is the case of a manual measurement type air micrometer device 10 in which an operator manually inserts and arranges a work 16 in a probe 14 protruding from the upper surface of the floating device 18.

【0014】この場合も、ワーク16を浮かせた状態で
測定することができるので、第1実施例と同様の効果を
得ることができ、ワーク16の孔径を精度良く測定する
ことができると共に、繰り返し精度も向上する。次に、
図4に従って本発明の空気マイクロメータ装置の第3実
施例を説明する。図4は本発明の第3実施例を説明する
概略断面図で、第1実施例と同じ部材や装置等は同符号
を付して説明する。
Also in this case, since the work 16 can be measured in a floating state, the same effect as that of the first embodiment can be obtained, the hole diameter of the work 16 can be accurately measured, and the work can be repeated. Accuracy is also improved. next,
A third embodiment of the air micrometer device of the present invention will be described with reference to FIG. FIG. 4 is a schematic sectional view for explaining the third embodiment of the present invention, in which the same members and devices as those in the first embodiment are designated by the same reference numerals.

【0015】第3実施例は、凸状のワーク16に最適
で、フローティング装置18にワーク16の突起部16
Aを挿入する孔18Aを形成すると共に、その孔18A
の中心の上方位置に測定子14の中心が略位置するよう
にして測定子14をスタンド(図示せず)等で固定して
おく。そして、ワーク16の孔径を測定する場合には、
凸状のワーク16の突起部16Aをフローティング装置
18の孔18Aに挿入して予め簡単に位置決めしてお
き、この状態でフローティング装置18のエアノズル2
5から大きなエア圧の圧縮エア25を吹き出させ、この
エア圧によりワーク16を大きく浮上させてワーク16
の孔30を測定子14に挿入する。即ち、浮上したワー
ク16は小さな外力で動く状態にあるので、ワーク16
の孔30が測定子14に挿入される際に、ワーク16と
測定子14とが接触した際の摩擦を小さくできる。そし
て、この摩擦力は、第1実施例のように、スタンドのを
下降させて測定子14をワーク16の孔30内に挿入し
た際に、ワーク16と測定子14との接触により発生す
る摩擦力に比べて極めて小さくできる。従って、測定子
が破損しにくくなり、測定子14の寿命を長くすること
ができる。
The third embodiment is most suitable for a work 16 having a convex shape.
A hole 18A for inserting A is formed and the hole 18A is formed.
The probe 14 is fixed with a stand (not shown) or the like so that the center of the probe 14 is located substantially above the center of the probe. When measuring the hole diameter of the work 16,
The protrusion 16A of the convex work 16 is inserted into the hole 18A of the floating device 18 and easily positioned in advance. In this state, the air nozzle 2 of the floating device 18 is inserted.
5, the compressed air 25 having a large air pressure is blown out, and by this air pressure, the work 16 is greatly floated and the work 16 is lifted.
The hole 30 of FIG. That is, since the floating work 16 is in a state of being moved by a small external force, the work 16
When the hole 30 is inserted into the probe 14, the friction when the workpiece 16 and the probe 14 contact each other can be reduced. Then, this frictional force is generated by the contact between the work piece 16 and the measurement piece 14 when the measurement piece 14 is inserted into the hole 30 of the work piece 16 by lowering the stand as in the first embodiment. It can be extremely small compared to force. Therefore, the probe is less likely to be damaged, and the life of the probe 14 can be extended.

【0016】また、フローティング装置18に載置され
たワーク16は、その時点で測定子14に対してある程
度の位置決めがなされるので、ワーク16を浮上させた
時に、ワーク16は測定子14に対して直ちに正しい位
置関係を有して挿入される。従って、空気マイクロメー
タ12の指示計が安定するまでの時間が短くなるので、
測定時間を短縮できる。また、フローティング装置18
のエア圧で位置決めされたワーク16の孔30を測定子
14に挿入するように構成することにより、流れ作業現
場等でのワーク16の孔径測定において、測定の自動化
を図り易くなる。また、測定子14を支持する支持部1
2Aにゴム等の弾性体12Bを固着しておくと、大きく
浮上したワーク16が弾性体12Bに当接するので、空
気マイクロメータ12やワーク16の破損等を防止でき
る。
Further, since the work 16 placed on the floating device 18 is positioned to a certain extent with respect to the measuring element 14 at that time, when the work 16 is levitated, the work 16 is moved with respect to the measuring element 14. Immediately afterwards, it is inserted with the correct positional relationship. Therefore, the time taken for the indicator of the air micrometer 12 to stabilize becomes shorter,
The measurement time can be shortened. In addition, the floating device 18
When the hole 30 of the work 16 positioned by the air pressure is inserted into the probe 14, the measurement of the hole diameter of the work 16 at a flow work site or the like can be easily automated. In addition, the support portion 1 that supports the tracing stylus 14
When the elastic body 12B such as rubber is fixed to the 2A, the work 16 that is largely floated abuts on the elastic body 12B, so that the air micrometer 12 and the work 16 can be prevented from being damaged.

【0017】尚、本実施例ではエア圧によりワークを浮
上させるフローティング装置の例で説明したが、例え
ば、磁力によりワークを浮上させるフローティング装置
でもよい。要は、ワークを浮上させることができる装置
であればよい。
In this embodiment, an example of a floating device for levitating a work by air pressure has been described, but a floating device for levitating a work by magnetic force may be used. In short, any device that can float the work may be used.

【0018】[0018]

【発明の効果】以上説明したように、本発明の空気マイ
クロメータ装置によれば、ワークをフローティング手段
で浮上させた状態で、ワークの孔内に外周吹き出しの測
定子を配置させてワークの孔径を測定するようにした。
これにより、測定誤差の要因の1つである測定子の姿勢
誤差が発生しないので、ワークの孔径を精度良く測定す
ることができると共に、繰り返し精度も上昇する。
As described above, according to the air micrometer device of the present invention, in the state where the work is levitated by the floating means, the measuring element for blowing the outer circumference is arranged in the hole of the work to make the hole diameter of the work. Was measured.
As a result, since the attitude error of the measuring element, which is one of the factors of the measurement error, does not occur, the hole diameter of the work can be measured with high accuracy, and the repeatability also increases.

【0019】また、フローティング装置でワークを浮上
させてワークの孔を測定子に挿入するようにすると、ワ
ークが測定子に挿入される際に、ワークと測定子とが接
触した際の摩擦を小さくできる。これにより、測定子を
機械的な力でワークの孔内に挿入した時のワークと測定
子との摩擦に比べて、摩擦力を極めて小さくできるの
で、測定子が破損しにくくなり、測定子の寿命を長くす
ることができる。また、流れ作業現場等における測定の
自動化を図り易くなる。
Further, when the work is floated by the floating device and the hole of the work is inserted into the probe, the friction when the work and the probe contact each other when the work is inserted into the probe is small. it can. As a result, the frictional force can be made extremely small compared to the friction between the work piece and the measurement piece when the measurement piece is inserted into the hole of the work piece by mechanical force, so the measurement piece is less likely to be damaged and The life can be extended. In addition, it becomes easy to automate the measurement at the flow work site.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る空気マイクロメータ装置の第1実
施例を説明する概略断面図
FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of an air micrometer device according to the present invention.

【図2】本発明のフローティング装置を説明する説明図FIG. 2 is an explanatory diagram illustrating a floating device of the present invention.

【図3】本発明に係る空気マイクロメータ装置の第2実
施例を説明する概略断面図
FIG. 3 is a schematic sectional view illustrating a second embodiment of the air micrometer device according to the present invention.

【図4】本発明に係る空気マイクロメータ装置の第3実
施例を説明する概略断面図
FIG. 4 is a schematic sectional view illustrating a third embodiment of an air micrometer device according to the present invention.

【図5】従来の空気マイクロメータにおける測定子のフ
ローティング機構を説明する概略断面図
FIG. 5 is a schematic sectional view illustrating a floating mechanism of a probe in a conventional air micrometer.

【符号の説明】[Explanation of symbols]

10…空気マイクロメータ装置 12…空気マイクロメータ 14…測定子 16…ワーク 18…フローティング装置 20…ジェットノズル 22…エア通路 24…フローティング装置のエアノズル 26…フローティング装置のエア通路 30…ワークの孔 10 ... Air micrometer device 12 ... Air micrometer 14 ... Measuring element 16 ... Work piece 18 ... Floating device 20 ... Jet nozzle 22 ... Air passage 24 ... Floating device air nozzle 26 ... Floating device air passage 30 ... Work hole

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】外周吹出しジェットノズルを有する測定子
をワークの孔内に挿入して前記ワークの孔径を測定する
空気マイクロメータ装置に於いて、 前記ワークを浮上させるフローティング装置を備え、前
記フローティング装置でワークを浮上させた状態でワー
クの孔径を測定することを特徴とする空気マイクロメー
タ装置。
1. An air micrometer device for measuring the hole diameter of a work by inserting a probe having an outer peripheral jet nozzle into the hole of the work, comprising a floating device for floating the work. An air micrometer device characterized by measuring the hole diameter of a work while the work is being levitated.
【請求項2】前記フローティング装置は、エア圧により
前記ワークを浮上させることを特徴とする請求項1の空
気マイクロメータ装置。
2. The air micrometer device according to claim 1, wherein the floating device floats the work by air pressure.
【請求項3】前記フローティング装置のエア圧により前
記ワークを浮上させて前記測定子を前記ワークの孔内に
挿入させることを特徴とする請求項2の空気マイクロメ
ータ装置。
3. The air micrometer device according to claim 2, wherein the work is levitated by the air pressure of the floating device and the probe is inserted into the hole of the work.
JP14949994A 1994-06-30 1994-06-30 Air micrometer device Expired - Fee Related JP3494315B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14949994A JP3494315B2 (en) 1994-06-30 1994-06-30 Air micrometer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14949994A JP3494315B2 (en) 1994-06-30 1994-06-30 Air micrometer device

Publications (2)

Publication Number Publication Date
JPH0814871A true JPH0814871A (en) 1996-01-19
JP3494315B2 JP3494315B2 (en) 2004-02-09

Family

ID=15476498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14949994A Expired - Fee Related JP3494315B2 (en) 1994-06-30 1994-06-30 Air micrometer device

Country Status (1)

Country Link
JP (1) JP3494315B2 (en)

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