JPH10213404A - Apparatus for measuring inner diameter deflection of long shaft - Google Patents
Apparatus for measuring inner diameter deflection of long shaftInfo
- Publication number
- JPH10213404A JPH10213404A JP1627897A JP1627897A JPH10213404A JP H10213404 A JPH10213404 A JP H10213404A JP 1627897 A JP1627897 A JP 1627897A JP 1627897 A JP1627897 A JP 1627897A JP H10213404 A JPH10213404 A JP H10213404A
- Authority
- JP
- Japan
- Prior art keywords
- long shaft
- measuring
- inner diameter
- tool
- shaft
- 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
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ロングシャフトの
内面の内径振れを計測する内径振れ計測装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner diameter fluctuation measuring device for measuring the inner diameter fluctuation of the inner surface of a long shaft.
【０００２】[0002]
【従来の技術】ジェットエンジンのタービンとファン
（又はコンプレッサ）を連結するために、ロングシャフ
トと呼ばれる図４に例示するような細長い中空軸（例え
ば全長約３ｍ、主要部の外径１０〜２０ｃｍ）が用いら
れる。かかるロングシャフトは、軽量化のため薄肉であ
り、かつタービンと共に高速回転するため高い回転バラ
ンス精度が要求される。そのため、通常の内面加工装置
（例えば中ぐり盤）の適用は困難であり、図５に例示す
るような加工工程が適用される。2. Description of the Related Art In order to connect a jet engine turbine and a fan (or a compressor), an elongated hollow shaft called a long shaft as shown in FIG. 4 (for example, a total length of about 3 m, an outer diameter of a main part of 10 to 20 cm). Is used. Such a long shaft is thin for weight reduction, and is required to have high rotational balance accuracy because it rotates at high speed together with the turbine. For this reason, it is difficult to apply a normal inner surface processing device (for example, a boring machine), and a processing process as illustrated in FIG. 5 is applied.
【０００３】すなわち、（Ａ）ロングシャフト１の外面
を粗加工後、（Ｂ）コアバー２とロングシャフト１との
隙間へ硫黄３を鋳込み、（Ｃ）硫黄の凝固後、コアバー
とほぼ同径のボーリングバー４を挿入し、（Ｄ）ボーリ
ングバーを引き抜きながら、先端部５の工具６で内面を
加工する手段が用いられる。かかる手段により、ボーリ
ングバーの先端部５を凝固した硫黄３で支持することが
でき、先端工具６の芯振れを防ぎ、硫黄と共に内面を加
工することにより、内径振れの少ないロングシャフトを
加工することができる。[0003] That is, (A) after roughing the outer surface of the long shaft 1, (B) pouring sulfur 3 into the gap between the core bar 2 and the long shaft 1, (C) after the solidification of sulfur, the sulfur 3 is substantially the same diameter as the core bar. A means is used in which the boring bar 4 is inserted, and (D) the inner surface is machined with the tool 6 at the tip 5 while pulling out the boring bar. By such means, the tip portion 5 of the boring bar can be supported by the solidified sulfur 3, preventing runout of the center of the tool bit 6, and processing the inner surface together with sulfur to process a long shaft with small inner runout. Can be.
【０００４】上述した工程で完成したロングシャフト
は、その内径の振れを測定し、所定の値以内となるよう
にする必要がある。このため、従来は、汎用のＮＣ旋盤
を使用し、ロングシャフトをＮＣ旋盤のチャックでチャ
ッキングして芯出し、一端に測定子を取り付けた細長い
計測ロッドをロングシャフト内に挿入して、内径深穴部
の振れを例えば５〜６ケ所計測していた。[0004] The long shaft completed in the above-described process needs to measure the run-out of the inner diameter of the long shaft so as to be within a predetermined value. For this reason, conventionally, a general-purpose NC lathe has been used, and the long shaft is chucked with the chuck of the NC lathe for centering, and an elongated measuring rod having a probe attached at one end is inserted into the long shaft, and the inner diameter is deepened. For example, the runout of the hole was measured at 5 to 6 places.
【０００５】また、本願発明と同一の出願人は、同様の
計測を行うために、先に、「シャフト内径振れ計測機」
（特開平６−３４７２０３号公報）を創案し出願してい
る。この装置は、図６に示すように、計測軸７の中間に
ヘッド８ａの移動量を計測する計測装置８と、支持軸９
ａを中心に揺動可能な接触子９を組み込み、ワイヤ１０
で接触子９を計測軸７の内部に縮めた状態で計測装置８
をシャフト１内に挿入し、内部でスプリング１１により
接触子９を軸から突出させ、その先端をシャフト１の内
面に当接させて、内径の振れを計測するようになってい
た。In order to perform the same measurement, the same applicant as the present invention first described a "shaft inner diameter fluctuation measuring device".
(Japanese Unexamined Patent Publication No. 6-347203) has been filed and filed. As shown in FIG. 6, this device includes a measuring device 8 for measuring the amount of movement of a head 8a in the middle of a measuring shaft 7, and a supporting shaft 9
A contact 9 which can swing around a
With the contact 9 contracted inside the measuring shaft 7 with the
Is inserted into the shaft 1, and the contact 9 is projected from the shaft by the spring 11 inside, and its tip is brought into contact with the inner surface of the shaft 1 to measure the deflection of the inner diameter.
【０００６】[0006]
【発明が解決しようとする課題】ロングシャフトの全長
は約６ｍ前後あり、その内部を全長にわたり計測するた
めには、計測ロッドの長さも約６ｍ程度必要となり、内
径振れ計測のために全長が約１２ｍ以上必要となる。ま
た、ロングシャフトの一部は細くくびれているため、こ
の細い部分から計測装置を挿入し、内部の直径が大きく
なった部分の内径の振れを計測する必要がある。The total length of the long shaft is about 6 m. To measure the inside of the long shaft over the entire length, the length of the measuring rod is also required to be about 6 m. 12m or more is required. In addition, since a part of the long shaft is narrow and narrow, it is necessary to insert a measuring device from the narrow part and measure the deflection of the inner diameter of the part where the inner diameter is increased.
【０００７】しかし、上述した汎用のＮＣ旋盤を用いる
場合には、汎用のＮＣ旋盤では十分な長さがないため、
計測ロッドの長さを約３ｍ程度に制限し、ロングシャフ
トの全長の約半分を一旦計測し、次いで左右を逆にして
再度残りの半分を計測する必要があり、計測の段取り作
業が倍になり、時間がかかるばかりでなく、正確な位置
の再現が困難であり、測定誤差が大きくなる等の問題点
があった。また、先端に計測装置を取り付けた細長い計
測ロッドを内径の小さい部分を通し、全体を斜めに傾け
て、内径の大きい部分の計測を行うため、計測部の正確
な位置決めが難しかった。However, when the above-mentioned general-purpose NC lathe is used, the general-purpose NC lathe does not have a sufficient length.
It is necessary to limit the length of the measuring rod to about 3m, measure about half of the total length of the long shaft once, then turn left and right to measure the other half again, doubling the measurement setup work. In addition, it takes time, and it is difficult to accurately reproduce the position, and the measurement error increases. In addition, an elongated measuring rod having a measuring device attached to the tip is passed through a portion having a small inner diameter, and the whole is inclined obliquely to measure a portion having a large inner diameter, so that accurate positioning of the measuring section is difficult.
【０００８】また、特開平６−３４７２０３号の装置を
用いる場合には、計測軸７を両端支持するために、装置
全長は更に長くなる問題点がある。また、この場合に
は、細長い計測軸７の中央部に接触子９が取付けられ、
接触子をスプリングでシャフト内面に押付けながら計測
するため、その反力で計測軸７が撓み、計測誤差が大き
くなりやすい問題点があった。When the apparatus disclosed in Japanese Patent Application Laid-Open No. 6-347203 is used, there is a problem that the total length of the apparatus is further increased since the measuring shaft 7 is supported at both ends. In this case, the contact 9 is attached to the center of the elongated measuring shaft 7,
Since the measurement is performed while the contact is pressed against the inner surface of the shaft with a spring, the reaction force causes the measurement shaft 7 to bend and the measurement error tends to increase.
【０００９】本発明はかかる問題点を解決するために創
案されたものである。すなわち、本発明の目的は、ロン
グシャフトの全長に対して装置全長を比較的短くでき、
内径の小さい部分を容易に通すことができかつ測定部の
正確な位置決めができ、更に測定反力による撓みの影響
の小さいロングシャフトの内径振れ計測装置を提供する
ことにある。The present invention has been made in order to solve such a problem. That is, the object of the present invention is to make the overall length of the device relatively short with respect to the overall length of the long shaft,
It is an object of the present invention to provide a long shaft inner diameter fluctuation measuring device which can easily pass through a portion having a small inner diameter, can accurately position a measuring portion, and is less affected by bending due to a measurement reaction force.
【００１０】[0010]
【課題を解決するための手段】本発明によれば、ロング
シャフトを軸心を中心に回転可能に支持する回転支持装
置と、測定工具をロングシャフト内を軸心に沿って移動
させる工具移動装置とを備え、前記測定工具は、ロング
シャフトの軸心に沿って延びる中空バーと、その内部を
貫通して延びる拡縮用ロッドと、内径振れ計測具を有す
る測定具支持部と、該測定具支持部と中空バーの先端部
とを連結する平行リンクと、を備え、拡縮用ロッドの軸
方向移動により測定具支持部を半径方向に拡縮するよう
になっている、ことを特徴とするロングシャフトの内径
振れ計測装置が提供される。According to the present invention, there is provided a rotation supporting device for rotatably supporting a long shaft around an axis, and a tool moving device for moving a measuring tool in the long shaft along the axis. The measurement tool comprises: a hollow bar extending along the axis of the long shaft; an expansion / contraction rod extending therethrough; a measurement tool support having an inner diameter runout measurement tool; And a parallel link connecting the distal end portion of the hollow bar and the hollow bar, wherein the measuring tool support portion is expanded and contracted in the radial direction by axial movement of the expansion and contraction rod, An inner diameter runout measuring device is provided.
【００１１】上記本発明の構成によれば、測定具支持部
と中空バーの先端部とが平行リンクで連結されているの
で、拡縮用ロッドを軸方向に移動して測定具支持部を半
径方向に拡縮することにより、平行リンクにより内径振
れ測定具の姿勢を保持したまま半径方向に拡縮すること
ができる。従って、内径振れ測定具を縮径した状態で測
定工具をロングシャフト内に挿入し、回転支持装置によ
りロングシャフトを回転させ、その状態で内径振れ計測
具を拡径してロングシャフトの内面に押付け、内径振れ
計測具によりロングシャフトの内面の内径振れ計測を行
うことができる。According to the configuration of the present invention, since the measuring instrument support and the tip of the hollow bar are connected by the parallel link, the expansion / contraction rod is moved in the axial direction to move the measuring instrument support in the radial direction. In this case, the parallel link can be used to expand and contract in the radial direction while maintaining the posture of the inner-diameter runout measuring tool. Therefore, insert the measuring tool into the long shaft with the inner diameter run-out measuring tool reduced in diameter, rotate the long shaft with the rotation support device, and expand the inner diameter run-out measuring tool in this state and press it against the inner surface of the long shaft The inner-diameter runout measuring tool can measure the inner-diameter runout of the inner surface of the long shaft.
【００１２】また、前記平行リンクは、両端がピン結合
された２本のリンク棒からなり、該リンク棒の少なくと
も一方は、中空バーへの取付部にピンの軸心を中心に回
転可能なピニオン歯車を有し、前記拡縮用ロッドはピニ
オン歯車と螺合するラック歯車を有し、これにより拡縮
用ロッドの軸方向移動によりリンク棒をピニオン歯車に
より揺動させて測定具支持部を半径方向に拡縮する。The parallel link comprises two link rods each having a pin joined at both ends, and at least one of the link rods has a pinion rotatable around an axis of the pin at a portion attached to the hollow bar. The expansion / contraction rod has a rack gear screwed with a pinion gear, whereby the link rod is oscillated by the pinion gear by the axial movement of the expansion / contraction rod, thereby radially moving the measurement tool support portion. Scale.
【００１３】この構成により、平行リンクの２本のリン
ク棒を揺動させて縮径することにより、内径の小さい部
分を容易に通すことができる。また、平行リンクによ
り、内径振れ測定具の姿勢が保持されるので、平行リン
クの揺動角度と中空バーの挿入長さから、測定部の正確
な位置決めができる。更に内径振れ計測具として測定力
の極めて小さい電子マイクロ等を用いることにより、測
定反力による撓みの影響をほとんどなくすことができ
る。According to this configuration, the two link rods of the parallel link are swung to reduce the diameter, so that a portion having a small inner diameter can be easily passed. In addition, since the posture of the inner-diameter runout measuring tool is maintained by the parallel link, accurate positioning of the measurement unit can be performed based on the swing angle of the parallel link and the insertion length of the hollow bar. Further, by using an electronic micro or the like having a very small measuring force as the inner-diameter deflection measuring tool, it is possible to substantially eliminate the influence of the bending due to the measuring reaction force.
【００１４】本発明の好ましい実施形態によれば、前記
回転支持装置は、軸心に沿って貫通する開口を有しロン
グシャフトの一端を挟持して軸心を中心に回転するチャ
ック装置と、ロングシャフトの他端部を回転可能に支持
する回転支持具とからなり、前記工具移動装置は、ロン
グシャフトの両端から挿入するように１対設けられ、ロ
ングシャフトの全長のほぼ半分をそれぞれ計測するよう
になっている。 この構成により、ロングシャフトの全
長に対して両側にその半分ずつあれば足り、装置全長を
比較的短くできる。[0014] According to a preferred embodiment of the present invention, the rotation supporting device has an opening penetrating along the axis and holds the one end of the long shaft to rotate around the axis. A rotating support for rotatably supporting the other end of the shaft, wherein the tool moving device is provided in a pair so as to be inserted from both ends of the long shaft, and measures approximately half of the entire length of the long shaft. It has become. With this configuration, it is sufficient if the length of the long shaft is half each on both sides, and the overall length of the device can be relatively short.
【００１５】[0015]
【発明の実施の形態】以下、本発明の好ましい実施形態
を図面を参照して説明する。なお、各図において共通す
る部分には同一の符号を付して重複した説明を省略す
る。図１は、本発明によるロングシャフトの内径振れ計
測装置の全体構成図である。この図において、本発明の
ロングシャフトの内径振れ計測装置２０は、ロングシャ
フト１を軸心Ｚ−Ｚを中心に回転可能に支持する回転支
持装置２２と、測定工具２４をロングシャフト１内を軸
心に沿って移動させる工具移動装置２６とを備えてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In the drawings, common portions are denoted by the same reference numerals, and redundant description is omitted. FIG. 1 is an overall configuration diagram of a long shaft inner diameter runout measuring apparatus according to the present invention. In this figure, a long shaft inner diameter runout measuring device 20 of the present invention includes a rotation support device 22 that supports the long shaft 1 so as to be rotatable around an axis Z-Z, and a measurement tool 24 that moves inside the long shaft 1. And a tool moving device 26 that moves along the heart.
【００１６】回転支持装置２２は、軸心Ｚ−Ｚに沿って
貫通する開口を有しロングシャフト１の一端１ａ（この
図で左端）を挟持して軸心を中心に回転するチャック装
置２３ａと、ロングシャフト１の他端部１ｂを回転可能
に支持する回転支持具２３ｂとからなる。チャック装置
２３ａは、ロングシャフト１を調心して挟持できるチャ
ックを有し、その軸心を中心に手動又は電動で回転でき
るようになっている。回転支持具２３ｂは、軸心Ｚ−Ｚ
に平行な回転軸を有する１対のローラからなり、ロング
シャフト１に設けられた所定の回転基準位置を支持する
ようになっている。チャック装置２３ａと回転支持具２
３ｂは共通の架台１２に取付けられ、ロングシャフト１
の高精度での回転支持が確保されている。The rotation support device 22 has an opening penetrating along the axis Z-Z, and has a chuck device 23a that rotates around the axis while holding one end 1a (left end in this figure) of the long shaft 1 therebetween. And a rotation support 23b that rotatably supports the other end 1b of the long shaft 1. The chuck device 23a has a chuck capable of centering and holding the long shaft 1, and can be rotated manually or electrically around its axis. The rotation support 23b has an axis Z-Z.
And a predetermined rotation reference position provided on the long shaft 1. Chuck device 23a and rotation support 2
3b is attached to the common base 12, and the long shaft 1
The rotation support with high precision is ensured.
【００１７】また図１に示すように工具移動装置２６
は、ロングシャフト１の両端から挿入するように１対設
けられ、ロングシャフト１の全長のほぼ半分をそれぞれ
計測するようになっている。この構成により、ロングシ
ャフト１の全長に対して両側にその半分ずつあれば足
り、装置全長を比較的短くできる。Also, as shown in FIG.
Are provided so as to be inserted from both ends of the long shaft 1 so as to measure approximately half of the entire length of the long shaft 1, respectively. With this configuration, it is sufficient if the length of the long shaft 1 is half each on both sides, and the overall length of the device can be relatively short.
【００１８】図２は、図１における主要部の拡大図であ
り、図３は、図１のＡ−Ａ線における断面図である。図
２及び図３に示すように、測定工具２４は、ロングシャ
フト１の軸心に沿って延びる中空バー２７と、その内部
を貫通して延びる拡縮用ロッド２８と、内径振れ計測具
２９を有する測定具支持部３０と、測定具支持部３０と
中空バー２７の先端部とを連結する平行リンク３１と、
からなる。FIG. 2 is an enlarged view of a main part in FIG. 1, and FIG. 3 is a sectional view taken along line AA in FIG. As shown in FIGS. 2 and 3, the measurement tool 24 includes a hollow bar 27 extending along the axis of the long shaft 1, an expansion / contraction rod 28 extending through the inside thereof, and an inner-diameter runout measuring tool 29. A measuring instrument support portion 30, a parallel link 31 connecting the measuring instrument support portion 30 and the tip of the hollow bar 27,
Consists of
【００１９】平行リンク３１は、両端がピン結合された
２本のリンク棒３１ａからなる。このリンク棒３１ａの
少なくとも一方（この図では上側）は、中空バー２７へ
の取付部にピン３２の軸心を中心に回転可能なピニオン
歯車３３ａを有する。また、拡縮用ロッド２８はピニオ
ン歯車３３ａと螺合するラック歯車３４ａをその内方端
に有する。更に、拡縮用ロッド２８の外方端には、別の
ラック歯車３４ｂが設けられ、このラック歯車３４ｂと
螺合するピニオン歯車３３ｂの回転により拡縮用ロッド
２８を軸方向に移動できるようになっている。なお、図
１に示すように、ラック歯車３４ｂとピニオン歯車３３
ｂは、内径振れ計測装置２０の外方端部に位置してお
り、外部から容易に操作できるようになっている。The parallel link 31 comprises two link rods 31a, both ends of which are pin-connected. At least one of the link rods 31a (upper side in this figure) has a pinion gear 33a rotatable about the axis of the pin 32 at a mounting portion to the hollow bar 27. The expansion / contraction rod 28 has a rack gear 34a at the inner end thereof which is screwed with the pinion gear 33a. Further, another rack gear 34b is provided at the outer end of the expansion / contraction rod 28, and the expansion / contraction rod 28 can be moved in the axial direction by rotation of a pinion gear 33b screwed with the rack gear 34b. I have. As shown in FIG. 1, the rack gear 34b and the pinion gear 33
b is located at the outer end of the inner diameter fluctuation measuring device 20 and can be easily operated from the outside.
【００２０】上述した構成により、拡縮用ロッド２８の
軸方向移動によりリンク棒３１ａをピニオン歯車３３ａ
により揺動させて測定具支持部３０を半径方向に拡縮す
ることができる。With the above-described structure, the link rod 31a is moved by the axial movement of the expanding / contracting rod 28 so that the pinion gear 33a is moved.
The measurement tool support 30 can be expanded and contracted in the radial direction by swinging.
【００２１】また、図３に示すように、中空バー２７は
全体として矩形断面を有し、その内部を拡縮用ロッド２
８が貫通するようになっている。工具移動装置２６は、
矩形断面を上下に接する上下一対のＶローラユニット３
５からなり、このＶローラユニットはロングシャフト１
の軸方向に間隔を隔てて両側に２つづつ設けられ、中空
バー２７を水平に保持したまま、手動または電動により
軸方向に移動できるようになっている。As shown in FIG. 3, the hollow bar 27 has a rectangular cross section as a whole,
8 penetrates. The tool moving device 26
A pair of upper and lower V roller units 3 that vertically contact a rectangular cross section
5, this V roller unit is a long shaft 1
Are provided two on each side at an interval in the axial direction, and can be moved manually or electrically in the axial direction while the hollow bar 27 is held horizontally.
【００２２】上述した構成により、図２に示すように、
測定具支持部３０と中空バー２７の先端部とが平行リン
ク３１で連結されているので、拡縮用ロッド２８を軸方
向に移動して測定具支持部３０を半径方向に拡縮するこ
とにより、平行リンク３１により内径振れ測定具２９の
姿勢を保持したまま半径方向に拡縮することができる。With the above configuration, as shown in FIG.
Since the measuring instrument support 30 and the distal end of the hollow bar 27 are connected by the parallel link 31, the expanding / contracting rod 28 is moved in the axial direction to expand and contract the measuring instrument support 30 in the radial direction. The link 31 makes it possible to expand and contract in the radial direction while maintaining the posture of the inner-diameter deflection measuring tool 29.
【００２３】従って、内径振れ測定具２９を縮径した状
態で測定工具２４をロングシャフト１内に挿入し、内径
振れ計測具２９を拡径してロングシャフト１の内面に押
付け、その状態で回転支持装置２２によりロングシャフ
ト１を回転させことにより、内径振れ計測具２９により
ロングシャフト１の内面の内径振れ計測を行うことがで
きる。Accordingly, the measuring tool 24 is inserted into the long shaft 1 with the inner diameter runout measuring tool 29 reduced in diameter, and the inner diameter runout measuring tool 29 is expanded and pressed against the inner surface of the long shaft 1, and then rotated in this state. By rotating the long shaft 1 by the support device 22, the inner-diameter deflection measurement of the inner surface of the long shaft 1 can be performed by the inner-diameter deflection measuring tool 29.
【００２４】また、平行リンク３１の２本のリンク棒３
１ａを揺動させて縮径することにより、内径の小さい部
分を容易に通すことができる。更に平行リンク３１によ
り、内径振れ測定具２９の姿勢が保持されるので、平行
リンク３１の揺動角度と中空バー２７の挿入長さから、
測定部の正確な位置決めができる。また内径振れ計測具
２９として測定力の極めて小さい電子マイクロ等を用い
ることにより、測定反力による撓みの影響をほとんどな
くすことができる。なお、電子マイクロ２９の出力は、
中空バー２７を通して外部の記録装置３６に入力され、
内径振れを計測し記録することができる。The two link rods 3 of the parallel link 31
By swinging 1a to reduce the diameter, a portion having a small inner diameter can be easily passed. Further, since the attitude of the inner-diameter runout measuring tool 29 is held by the parallel link 31, the swing angle of the parallel link 31 and the insertion length of the hollow bar 27 allow
Accurate positioning of the measuring section is possible. Also, by using an electronic micro or the like having a very small measuring force as the inner-diameter deflection measuring tool 29, the influence of the bending due to the measuring reaction force can be almost eliminated. The output of the electronic micro 29 is
Input to the external recording device 36 through the hollow bar 27,
The inner diameter runout can be measured and recorded.
【００２５】なお、本発明は上述した実施形態に限定さ
れず、本発明の要旨を逸脱しない範囲で種々変更できる
ことは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.
【００２６】[0026]
【発明の効果】上述したように、本発明により、従来の
内径振れ計測に用いていた高価なＮＣ旋盤を用いること
なく、ロングシャフトの内径振れ計測ができ、リーディ
ングタイムを短縮し、品質を安定化することができる。
すなわち、本発明のロングシャフトの内径振れ計測装置
は、ロングシャフトの全長に対して装置全長を比較的短
くでき、内径の小さい部分を容易に通すことができかつ
測定部の正確な位置決めができ、更に測定反力による撓
みの影響の小さい、等の優れた効果を有する。As described above, according to the present invention, the inner diameter runout of a long shaft can be measured without using an expensive NC lathe used for the conventional inner diameter runout measurement, leading time is reduced, and quality is stabilized. Can be
In other words, the long shaft inner diameter runout measuring device of the present invention can make the overall length of the device relatively short with respect to the entire length of the long shaft, can easily pass a portion having a small inner diameter, and can accurately position the measuring section, Further, it has excellent effects such as a small influence of deflection due to the measurement reaction force.
【図１】本発明によるロングシャフトの内径振れ計測装
置の全体構成図である。FIG. 1 is an overall configuration diagram of a long shaft inner diameter runout measuring apparatus according to the present invention.
【図２】図１における主要部の拡大図である。FIG. 2 is an enlarged view of a main part in FIG.
【図３】図２のＡ−Ａ線における断面図である。FIG. 3 is a cross-sectional view taken along line AA of FIG.
【図４】ロングシャフトの部分断面図である。FIG. 4 is a partial sectional view of a long shaft.
【図５】従来の加工手段の工程説明図である。FIG. 5 is a process explanatory view of a conventional processing means.
【図６】本願発明と同一の出願人による先行技術の説明
図である。FIG. 6 is an explanatory diagram of a prior art by the same applicant as the present invention.
１ ロングシャフト ２ コアバー ３ 硫黄 ４ ボーリングバー ５ 先端部 ６ 工具 ７ 計測軸 ８ 計測装置 ９ 接触子 １０ ワイヤ １１ スプリング １２ 架台 ２０ ロングシャフトの内径振れ計測装置 ２２ 回転支持装置 ２３ａ チャック装置 ２３ｂ 回転支持具 ２４ 測定工具 ２６ 工具移動装置 ２７ 中空バー ２８ 拡縮用ロッド ２９ 内径振れ計測具（電子マイクロ） ３０ 測定具支持部 ３１ 平行リンク ３１ａ リンク棒 ３２ ピン ３３ａ，３３ｂ ピニオン歯車 ３４ａ，３４ｂ ラック歯車 ３５ Ｖローラユニット ３６ 記録装置 DESCRIPTION OF SYMBOLS 1 Long shaft 2 Core bar 3 Sulfur 4 Boring bar 5 Tip part 6 Tool 7 Measuring axis 8 Measuring device 9 Contact 10 Wire 11 Spring 12 Mounting stand 20 Long shaft inner diameter fluctuation measuring device 22 Rotation support device 23a Chuck device 23b Rotation support device 24 Measuring tool 26 Tool moving device 27 Hollow bar 28 Expansion / contraction rod 29 Inner-diameter runout measuring tool (Electronic micro) 30 Measuring tool support 31 Parallel link 31a Link rod 32 Pin 33a, 33b Pinion gear 34a, 34b Rack gear 35 V roller unit 36 Recording device
Claims (3)
に支持する回転支持装置と、測定工具をロングシャフト
内を軸心に沿って移動させる工具移動装置とを備え、前
記測定工具は、ロングシャフトの軸心に沿って延びる中
空バーと、その内部を貫通して延びる拡縮用ロッドと、
内径振れ計測具を有する測定具支持部と、該測定具支持
部と中空バーの先端部とを連結する平行リンクと、を備
え、拡縮用ロッドの軸方向移動により測定具支持部を半
径方向に拡縮するようになっている、ことを特徴とする
ロングシャフトの内径振れ計測装置。1. A rotary support device for rotatably supporting a long shaft about an axis, and a tool moving device for moving a measuring tool along the axis in the long shaft, wherein the measuring tool is a long tool. A hollow bar extending along the axis of the shaft, an expansion / contraction rod extending through the inside thereof,
A measuring tool support having an inner diameter runout measuring tool, and a parallel link connecting the measuring tool support and the tip of the hollow bar are provided, and the measuring tool support is moved in the radial direction by axial movement of the expansion / contraction rod. An inner diameter runout measuring device for a long shaft, which expands and contracts.
た２本のリンク棒からなり、該リンク棒の少なくとも一
方は、中空バーへの取付部にピンの軸心を中心に回転可
能なピニオン歯車を有し、前記拡縮用ロッドはピニオン
歯車と螺合するラック歯車を有し、これにより拡縮用ロ
ッドの軸方向移動によりリンク棒をピニオン歯車により
揺動させて測定具支持部を半径方向に拡縮する、ことを
特徴とする請求項１に記載のロングシャフトの内径振れ
計測装置。2. The parallel link comprises two link rods each having a pin joined at both ends, and at least one of the link rods is a pinion rotatable around an axis of a pin at a portion attached to the hollow bar. The expansion / contraction rod has a rack gear screwed with a pinion gear, whereby the link rod is oscillated by the pinion gear by the axial movement of the expansion / contraction rod, thereby radially moving the measurement tool support portion. The inner diameter runout measuring device for a long shaft according to claim 1, wherein the measuring device expands and contracts.
する開口を有しロングシャフトの一端を挟持して軸心を
中心に回転するチャック装置と、ロングシャフトの他端
部を回転可能に支持する回転支持具とからなり、 前記工具移動装置は、ロングシャフトの両端から挿入す
るように１対設けられ、ロングシャフトの全長のほぼ半
分をそれぞれ計測するようになっている、ことを特徴と
する、請求項１に記載のロングシャフトの内径振れ計測
装置。3. The chuck device according to claim 1, wherein the rotation support device has an opening that penetrates along the axis and holds the one end of the long shaft to rotate about the axis, and the other end of the long shaft is rotatable. A pair of the tool moving devices are provided so as to be inserted from both ends of the long shaft, and each of the tool moving devices measures approximately half of the entire length of the long shaft. The long shaft inner diameter fluctuation measuring device according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01627897A JP3700805B2 (en) | 1997-01-30 | 1997-01-30 | Long shaft inner diameter run-out measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01627897A JP3700805B2 (en) | 1997-01-30 | 1997-01-30 | Long shaft inner diameter run-out measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10213404A true JPH10213404A (en) | 1998-08-11 |
| JP3700805B2 JP3700805B2 (en) | 2005-09-28 |
Family
ID=11912089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01627897A Expired - Fee Related JP3700805B2 (en) | 1997-01-30 | 1997-01-30 | Long shaft inner diameter run-out measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3700805B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9145924B2 (en) | 2012-02-09 | 2015-09-29 | Ihi Corporation | Rotation restricting device for rotation machine |
| US9372061B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9372073B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9410795B2 (en) | 2012-02-09 | 2016-08-09 | Ihi Corporation | Inner diameter measuring device |
| US9429409B2 (en) | 2012-02-09 | 2016-08-30 | Ihi Corporation | Inner diameter measuring device |
| US9470509B2 (en) | 2012-02-09 | 2016-10-18 | Ihi Corporation | Inner diameter measuring device and inner diameter measuring method |
| US9518817B2 (en) | 2012-02-09 | 2016-12-13 | Ihi Corporation | Inner diameter measuring device |
| US9612109B2 (en) | 2012-02-09 | 2017-04-04 | Ihi Corporation | Inner diameter measuring device |
-
1997
- 1997-01-30 JP JP01627897A patent/JP3700805B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9145924B2 (en) | 2012-02-09 | 2015-09-29 | Ihi Corporation | Rotation restricting device for rotation machine |
| US9372061B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9372073B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9410795B2 (en) | 2012-02-09 | 2016-08-09 | Ihi Corporation | Inner diameter measuring device |
| US9429409B2 (en) | 2012-02-09 | 2016-08-30 | Ihi Corporation | Inner diameter measuring device |
| US9470509B2 (en) | 2012-02-09 | 2016-10-18 | Ihi Corporation | Inner diameter measuring device and inner diameter measuring method |
| US9518817B2 (en) | 2012-02-09 | 2016-12-13 | Ihi Corporation | Inner diameter measuring device |
| US9612109B2 (en) | 2012-02-09 | 2017-04-04 | Ihi Corporation | Inner diameter measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3700805B2 (en) | 2005-09-28 |
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