JPH0642162Y2 - Roundness measuring instrument - Google Patents
Roundness measuring instrumentInfo
- Publication number
- JPH0642162Y2 JPH0642162Y2 JP1983082611U JP8261183U JPH0642162Y2 JP H0642162 Y2 JPH0642162 Y2 JP H0642162Y2 JP 1983082611 U JP1983082611 U JP 1983082611U JP 8261183 U JP8261183 U JP 8261183U JP H0642162 Y2 JPH0642162 Y2 JP H0642162Y2
- Authority
- JP
- Japan
- Prior art keywords
- peripheral surface
- measured
- cylindrical member
- inner peripheral
- cylinder
- 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.)
- Expired - Lifetime
Links
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- A Measuring Device Byusing Mechanical Method (AREA)
Description
【考案の詳細な説明】 [産業上の利用分野] この考案は、管等、内周面を有する被測定体の、内径の
真円度を測定するための真円度測定器具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a roundness measuring instrument for measuring the roundness of the inner diameter of a measured object having an inner peripheral surface such as a pipe.
[従来の技術] 従来、管の内径の真円度を測定する、真円度測定装置と
して、例えば特開昭57−119208号公報に記載のものがあ
る。[Prior Art] Conventionally, as a roundness measuring device for measuring the roundness of the inner diameter of a tube, there is one described in, for example, JP-A-57-119208.
この装置では、台盤上に被測定体の外周面下部を支持し
てこれを回転させるためのターニングローラが設けら
れ、このターニングローラはモータで駆動させられる。
被測定体の内周面内には、それぞれ車輪をこの内周面に
当接させた脚等に距離検出器及び変位量検出器を有する
本体が挿入されており、この本体は被測定体の軸線上に
位置する水平のピンに支持されている。又、このピンは
その両端が被測定体の両開口端の外側に位置する一対の
スタンドで支持されており、このスタンドは台盤上に固
定されている。In this device, a turning roller for supporting the lower part of the outer peripheral surface of the object to be measured and rotating the same is provided on the platform, and the turning roller is driven by a motor.
Inside the inner peripheral surface of the object to be measured, there is inserted a main body having a distance detector and a displacement amount detector on the legs or the like with wheels abutting against the inner peripheral surface. It is supported by a horizontal pin located on the axis. Further, both ends of this pin are supported by a pair of stands located outside both open ends of the object to be measured, and the stands are fixed on the base.
そして、被測定体の外周面下部を支持するターニングロ
ーラをモータで回転させることで、被測定体を回転させ
て、距離検出器及び変位量検出器に接続される車輪が回
転する被測定体の内周面の振れに追従することで、被測
定体の内径を測定するようになっている。Then, by rotating the turning roller that supports the lower portion of the outer peripheral surface of the measured object with a motor, the measured object is rotated, and the wheel connected to the distance detector and the displacement amount detector rotates. The inner diameter of the object to be measured is measured by following the runout of the inner peripheral surface.
[考案が解決しようとする課題] しかしながら、このような装置では、各部材が被測定体
の内外部に分散配置されて構成が複雑で大型化する上
に、被測定体を回転させて内径を測定するために、被測
定体が長尺物である場合、測定装置が大型化し、被測定
体全長に亘る測定や任意位置での測定が困難であり、製
造コストが上昇する欠点がある。しかも、被測定体が長
尺物で真直度が悪いと、その真円度の正確な測定が困難
である。又、被測定体が重量物であると、これを回転さ
せる駆動モータが大型化する欠点もある。[Problems to be solved by the invention] However, in such a device, each member is dispersed inside and outside the object to be measured, the structure is complicated and large, and the object to be measured is rotated to reduce the inner diameter. When the object to be measured is a long object for measurement, there is a drawback that the measuring device becomes large and it is difficult to measure the entire length of the object to be measured or at an arbitrary position, resulting in an increase in manufacturing cost. Moreover, if the object to be measured is a long one and the straightness is poor, it is difficult to measure the roundness accurately. In addition, if the object to be measured is a heavy object, the size of the drive motor for rotating the object increases.
本考案は、このような課題に鑑みて、構成が比較的簡単
で容易に被測定体の内周面の径の真円度を測定できるよ
うにした真円度測定器具を提供することを目的とする。In view of these problems, the present invention has an object to provide a roundness measuring instrument having a relatively simple structure and capable of easily measuring the roundness of the diameter of the inner peripheral surface of the measured object. And
[考案の構成] 本考案による真円度測定器具は、被測定体の内周面内に
挿入され得る。被測定体に対して回転可能な比較的小径
の円筒部材と、 この円筒部材外周面上に、それぞれの軸線方向がこの円
筒部材の軸線と平行であるように、円周方向に離間して
配置された2つのローラと、 円筒部材に支持されて外周面から突出していて、バネに
よって円筒部材半径方向外側に付勢されて、被測定体の
内周面に先端ローラが押圧され得る円周方向に離間して
配置された押圧部材と、 円筒部材の内周面内に突出するこの押圧部材の他端に設
けられていて、この押圧部材の先端ローラをバネの付勢
力に抗して被測定体の内周面に対して離間させる操作部
と、 円筒部材に取り付けられていて、その測定子が円筒部材
の外周面から突出して円筒部材の半径方向に進退可能な
ダイヤルゲージと、 からなることを特徴とする。[Construction of the Invention] The roundness measuring instrument according to the present invention can be inserted into the inner peripheral surface of the object to be measured. A cylindrical member having a relatively small diameter that is rotatable with respect to the object to be measured, and is arranged on the outer peripheral surface of this cylindrical member so as to be spaced apart in the circumferential direction so that the respective axial directions are parallel to the axial line of this cylindrical member And the two rollers that are supported by the cylindrical member and project from the outer peripheral surface, and are urged outward in the radial direction of the cylindrical member by a spring so that the tip roller can be pressed against the inner peripheral surface of the measured object. Is provided at the other end of the pressing member and the other end of the pressing member protruding into the inner peripheral surface of the cylindrical member, and the tip roller of this pressing member is measured against the biasing force of the spring. It consists of an operating part that is separated from the inner peripheral surface of the body, and a dial gauge that is attached to the cylindrical member and that has a probe protruding from the outer peripheral surface of the cylindrical member and capable of advancing and retracting in the radial direction of the cylindrical member. Is characterized by.
[実施例] 以下、この考案の一実施例を第1図乃至第3図に基づい
て説明する。第1図は、本考案の一実施例を、一部を破
断面として示す測定状態の正面図、第2図は第1図の真
円度測定器具をIII方向から見た部分矢視図、第3図は
真円度測定器具による被測定体の真円度測定状態を示す
一部破断側面図である。[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a front view of a measuring state showing a part of the present invention as a fracture surface, and FIG. 2 is a partial arrow view of the roundness measuring instrument of FIG. FIG. 3 is a partially cutaway side view showing a roundness measuring state of the object to be measured by the roundness measuring instrument.
第1図において、例えば円筒状の被測定体3に真円度測
定装置が配置された状態が示されている。この真円度測
定器具の本体をなす円筒11の所定箇所には段付きの孔12
が円筒11の径方向に向けて形成されている。この孔12に
は、レバー(測定子可動装置)13を有するダイヤルゲー
ジ14がその一部を挿通されて取り付けられている。この
ダイヤルゲージ14の測定子15は円筒11の外周面11aから
突出しており、内周面11b内に位置するレバー13を操作
することによって、スピンドル17を介して円筒11の径方
向に移動自在とされている。FIG. 1 shows a state in which a roundness measuring device is arranged on, for example, a cylindrical object 3 to be measured. A stepped hole 12 is provided at a predetermined position of a cylinder 11 forming the main body of this roundness measuring instrument.
Are formed in the radial direction of the cylinder 11. A dial gauge 14 having a lever (measuring element moving device) 13 is partially inserted and attached to the hole 12. The probe 15 of the dial gauge 14 projects from the outer peripheral surface 11a of the cylinder 11, and can be moved in the radial direction of the cylinder 11 via the spindle 17 by operating the lever 13 located in the inner peripheral surface 11b. Has been done.
また、円筒11の外周部には、第1図で見て、スピンドル
17の中心軸線に対して対称位置に互いに離間して2つの
ローラ18がそれぞれ取り付けられている。これらのロー
ラ18はその軸線方向を円筒11の軸線方向と一致させら
れ、円筒11の円周方向に離間し、かつその外周面の一部
を円筒11の外周面11aから突出して、円筒11に固定され
た軸19を介して円筒11に回転自在にかつ取付位置不変に
取り付けられている。軸19は第2図に示すように円筒11
にナット20により締付けられて固定され、ローラ18は円
筒11に形成された凹部21に嵌入されている。In addition, as shown in FIG.
Two rollers 18 are attached at positions symmetrical to each other with respect to the central axis of 17 and spaced apart from each other. These rollers 18 have their axial direction aligned with the axial direction of the cylinder 11, are separated from each other in the circumferential direction of the cylinder 11, and have a part of their outer peripheral surfaces projecting from the outer peripheral surface 11a of the cylinder 11 to form the cylinder 11. It is rotatably and fixedly mounted on the cylinder 11 via a fixed shaft 19. The shaft 19 is a cylinder 11 as shown in FIG.
The roller 18 is fixed by being tightened by a nut 20 and is fitted in a recess 21 formed in the cylinder 11.
また、円筒11の周方向において、ダイヤルゲージ14の両
側には、それぞれローラ18とはその周方向の位置をずら
せて2組の押圧部材22が取り付けられている。即ち、円
筒11にはダイヤルゲージ14のスピンドル17の中心軸線に
対し対称位置に互いに離間して2つの段付きの孔23が形
成されている。孔23には円筒11の径方向へ移動自在にロ
ッド24が挿通され、このロッド24の一端にはローラ25が
回転自在に取り付けられている。ローラ24はその中間部
に鍔26を有しており、この鍔26と、ロッド24を貫通させ
て孔23に螺合して取り付けられた蓋27との間にはばね28
が設けられている。このばね28はローラ25を常に円筒11
の径方向であってその外側(被測定体の内周面側)へ付
勢している。これらのローラ25,ロッド24,蓋27,ばね28
により押圧部材22が構成されている。In addition, two sets of pressing members 22 are attached to both sides of the dial gauge 14 in the circumferential direction of the cylinder 11 so as to be displaced from the rollers 18 in the circumferential direction. That is, in the cylinder 11, two stepped holes 23 are formed at positions symmetrical to each other with respect to the central axis of the spindle 17 of the dial gauge 14. A rod 24 is inserted into the hole 23 so as to be movable in the radial direction of the cylinder 11, and a roller 25 is rotatably attached to one end of the rod 24. The roller 24 has a collar 26 at its intermediate portion, and a spring 28 is provided between the collar 26 and a lid 27 which is inserted through the rod 24 and screwed into the hole 23.
Is provided. This spring 28 keeps the roller 25 always in the cylinder 11
In the radial direction and is urged to the outer side (the inner peripheral surface side of the measured object). These rollers 25, rod 24, lid 27, spring 28
The pressing member 22 is constituted by.
また、ロッド24の他端には、ベルクランク29aまたはベ
ルクランク29bがその長孔30をピン31に嵌合されて回動
自在に取り付けられている。このベルクランク29a,29b
は円筒11の内周面11bに固定されたブラケット32に回動
自在に取り付けられている。ベルクランク29aまたはベ
ルクランク29b、ブラケット32、ピン31等により操作部3
3が構成されている。Further, a bell crank 29a or a bell crank 29b is rotatably attached to the other end of the rod 24 by fitting a long hole 30 thereof into a pin 31. This bell crank 29a, 29b
Is rotatably attached to a bracket 32 fixed to the inner peripheral surface 11b of the cylinder 11. Bell crank 29a or bell crank 29b, bracket 32, pin 31, etc.
3 are configured.
次に、上述のように構成された真円度測定器具の作用に
ついて説明する。Next, the operation of the roundness measuring instrument configured as described above will be described.
(1)円筒状の被測定体3を、第3図に示すように台等
の上に略水平に保持する。(1) The cylindrical object 3 to be measured is held substantially horizontally on a table or the like as shown in FIG.
(2)両ベルクランク29a,29bをそれぞれ第1図におけ
る矢印A、矢印B方向に回動させ、ピン31、ロッド24を
介してローラ25を円筒11側へばね28の力に抗して移動さ
せ、レバー13を第1図における矢印C方向へ回動させス
ピンドル17を介し測定子15を円筒11側へ移動させる。(2) Both bell cranks 29a, 29b are respectively rotated in the directions of arrow A and arrow B in FIG. 1, and the roller 25 is moved to the cylinder 11 side against the force of the spring 28 via the pin 31 and the rod 24. Then, the lever 13 is rotated in the direction of arrow C in FIG. 1 to move the probe 15 to the cylinder 11 side via the spindle 17.
(3)この状態で、円筒11を被測定体3に嵌合(被測定
体3内に円筒11を位置させる)して被測定体3の軸線方
向の所定箇所(真円度を測定すべき箇所)まで移動させ
る。(3) In this state, the cylinder 11 is fitted to the object 3 to be measured (the cylinder 11 is positioned inside the object 3 to be measured) and a predetermined position in the axial direction of the object 3 to be measured (roundness should be measured). Location).
(4)ベルクランク29a,29b、レバー13を自由状態とす
る。すると、ばね28の力によりローラ25が被測定体3の
内周面3aを押圧し、その反動でこの円筒11のローラ18を
被測定体3の内周面3aに押し付け、2つのローラ18と2
つのローラ25とにより被測定体内周面3aに円筒11が保持
された状態となり、この状態で測定子15が被測定体3の
内周面3aに接触する。(4) The bell cranks 29a, 29b and the lever 13 are free. Then, the roller 25 presses the inner peripheral surface 3a of the measured body 3 by the force of the spring 28, and the roller 18 of the cylinder 11 is pressed against the inner peripheral surface 3a of the measured body 3 by its reaction, so that the two rollers 18 and Two
The cylinder 11 is held by the inner surface 3a of the body 3 to be measured by the two rollers 25, and in this state, the probe 15 contacts the inner surface 3a of the body 3 to be measured.
(5)測定子15が被測定体3の内周面3aに接触している
のを確認して、ダイヤルゲージ14の目盛板の0表示を指
針に合わせる。(5) After confirming that the tracing stylus 15 is in contact with the inner peripheral surface 3a of the object 3 to be measured, align the 0 mark on the dial plate of the dial gauge 14 with the pointer.
(6)2つのローラ18と2つのローラ25が被測定体3に
接触した状態で円筒11を被測定体3に対して回わし、ダ
イヤルゲージ14の目盛表示を順次読み取る。(6) With the two rollers 18 and the two rollers 25 in contact with the object 3 to be measured, the cylinder 11 is rotated with respect to the object 3 to be measured, and the graduation display of the dial gauge 14 is sequentially read.
(7)前記(2)〜(6)をくり返して被測定体3の所
定箇所の真円度を測定する。(7) Repeating the above (2) to (6), the roundness of a predetermined portion of the DUT 3 is measured.
(8)測定が終ったら、ベルクランク29a,29b,レバー13
をそれぞれ第1図において矢印A,B,C方向へ回動させ、
円筒11を、その軸線方向へ移動して被測定体3から取り
外す。(8) After the measurement, bell cranks 29a, 29b, lever 13
Respectively in the direction of arrow A, B, C in FIG. 1,
The cylinder 11 is moved in the axial direction thereof and removed from the device under test 3.
[考案の効果] 以上説明したようにこの考案によれば、被測定体の内周
面内に挿入される円筒部材と、該円筒部材外周面上に配
置された2つのローラと、円筒部材に支持されて外周面
から突出していてバネによって円筒部材の半径方向外側
に付勢されて被測定体の内周面に先端ローラが押圧され
得る押圧部材と、円筒部材に取り付けられていてその測
定子が円筒部材の半径方向に進退可能なダイヤルゲージ
とが備えられているから、測定器具全体が被測定体の内
周面に位置する状態で、被測定体の内径を測定すること
ができることになる。[Effects of the Invention] As described above, according to the present invention, the cylindrical member inserted into the inner peripheral surface of the object to be measured, the two rollers arranged on the outer peripheral surface of the cylindrical member, and the cylindrical member are provided. A pressing member that is supported and protrudes from the outer peripheral surface and is urged radially outward of the cylindrical member by a spring so that the tip roller can be pressed against the inner peripheral surface of the object to be measured, and a probe attached to the cylindrical member. Is equipped with a dial gauge capable of advancing and retracting in the radial direction of the cylindrical member, so that the inner diameter of the measured object can be measured with the entire measuring instrument positioned on the inner peripheral surface of the measured object. .
そのために、被測定体を回すことなく、円筒部材を回す
ことによって、任意の場所で被測定体の内径の真円度を
容易且つ確実に測定できる。よって、重量物や長尺物の
真円度測定にも適用することができて、真直度が悪くて
も、その全長に亘って任意位置で測定できる。しかも、
その構成が比較的簡単で器具が小型であり、その製造コ
ストが低廉であるという利点がある。Therefore, the circularity of the inner diameter of the measured object can be easily and surely measured at any place by rotating the cylindrical member without rotating the measured object. Therefore, it can be applied to the roundness measurement of a heavy object or a long object, and even if the straightness is poor, it can be measured at any position over the entire length. Moreover,
It has the advantages that its configuration is relatively simple, the device is small, and its manufacturing cost is low.
第1図は、本考案の一実施例による真円度測定器具を、
一部を破断面として示す正面図、第2図は第1図の真円
度測定器具をIII方向から見た部分矢視図、第3図は真
円度測定器具による被測定体の真円度測定状態を示す一
部破断側面図である。 3……被測定体、11……円筒、13……レバー(測定子可
動装置)、14……ダイヤルゲージ、15……測定子、18,2
5……ローラ、22……押圧部材、24……ロッド、26……
鍔、28……ばね、29a,29b……ベルクランク、33……操
作部FIG. 1 shows a roundness measuring instrument according to an embodiment of the present invention.
A front view showing a part as a broken surface, FIG. 2 is a partial arrow view of the roundness measuring instrument of FIG. 1 seen from the direction III, and FIG. 3 is a perfect circle of the object to be measured by the roundness measuring instrument. It is a partially broken side view showing a degree measurement state. 3 ... Object to be measured, 11 ... Cylindrical, 13 ... Lever (moving device of measuring element), 14 ... Dial gauge, 15 ... Measuring element, 18,2
5 …… Roller, 22 …… Pressing member, 24 …… Rod, 26 ……
Tsuba, 28 …… Spring, 29a, 29b …… Bell crank, 33 …… Operating section
Claims (1)
定体に対して回転可能な比較的小径の円筒部材と、 該円筒部材外周面上に、それぞれの軸線方向が該円筒部
材の軸線と平行であるように、円周方向に離間して配置
された2つのローラと、 前記円筒部材に支持されて外周面から突出していて、バ
ネによって円筒部材の半径方向外側に付勢されて、前記
被測定体の内周面に先端ローラが押圧され得る、円周方
向に離間して配置された押圧部材と、 前記円筒部材の内周面内に突出する押圧部材の他端に設
けられていて、該押圧部材の先端ローラをバネの付勢力
に抗して被測定体の内周面に対して離間させる操作部
と、 前記円筒部材に取り付けられていて、その測定子が円筒
部材の外周面から突出して円筒部材の半径方向に進退可
能なダイヤルゲージと、 からなる真円度測定器具。1. A cylindrical member having a relatively small diameter, which can be inserted into an inner peripheral surface of a measured object and is rotatable with respect to the measured object, and a cylinder having an axial direction on the outer peripheral surface of the cylindrical member. Two rollers that are arranged so as to be spaced apart in the circumferential direction so as to be parallel to the axis of the member, and are supported by the cylindrical member and project from the outer peripheral surface, and are urged by a spring to the outside in the radial direction of the cylindrical member. The distal end roller can be pressed against the inner peripheral surface of the object to be measured, and the pressing member is arranged at a distance in the circumferential direction, and the other end of the pressing member protruding into the inner peripheral surface of the cylindrical member. An operating section which is provided to separate the tip roller of the pressing member from the inner peripheral surface of the object to be measured against the biasing force of a spring; A diamond that protrudes from the outer peripheral surface of the member and can move back and forth in the radial direction of the cylindrical member Roundness measuring instrument consisting of a gauge and.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983082611U JPH0642162Y2 (en) | 1983-05-31 | 1983-05-31 | Roundness measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983082611U JPH0642162Y2 (en) | 1983-05-31 | 1983-05-31 | Roundness measuring instrument |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59187707U JPS59187707U (en) | 1984-12-13 |
JPH0642162Y2 true JPH0642162Y2 (en) | 1994-11-02 |
Family
ID=30212566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1983082611U Expired - Lifetime JPH0642162Y2 (en) | 1983-05-31 | 1983-05-31 | Roundness measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0642162Y2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4870554A (en) * | 1971-12-24 | 1973-09-25 | ||
DE2726588C2 (en) * | 1977-06-13 | 1985-12-05 | Kraftwerk Union AG, 4330 Mülheim | Measuring gauge for measuring the cross-sectional contour of pipes |
-
1983
- 1983-05-31 JP JP1983082611U patent/JPH0642162Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS59187707U (en) | 1984-12-13 |
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