JPH0127043Y2 - - Google Patents
Info
- Publication number
- JPH0127043Y2 JPH0127043Y2 JP3163982U JP3163982U JPH0127043Y2 JP H0127043 Y2 JPH0127043 Y2 JP H0127043Y2 JP 3163982 U JP3163982 U JP 3163982U JP 3163982 U JP3163982 U JP 3163982U JP H0127043 Y2 JPH0127043 Y2 JP H0127043Y2
- Authority
- JP
- Japan
- Prior art keywords
- measured
- temperature sensor
- temperature
- arm
- measures
- 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
Links
- 238000005259 measurement Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
【考案の詳細な説明】
本考案は、温度センサを有する寸法測定装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dimension measuring device having a temperature sensor.
従来、内燃機関のピストンのごとき被測定物の
寸法を加工直後に測定する寸法測定装置では、外
径寸法測定ヘツドの他に温度センサを用意し、外
径寸法測定ヘツドによる被測定物の外径寸法の測
定と温度センサによる被測定物の温度の測定を同
時に行い、被測定物の外径寸法を、被測定物の温
度と被測定物の熱膨張係数より算出される熱膨張
補正量にて補正し標準温度における被測定物の外
径寸法に換算して表示するようにしている。 Conventionally, dimension measuring devices that measure the dimensions of objects to be measured, such as the piston of an internal combustion engine, immediately after machining use a temperature sensor in addition to an outer diameter measuring head, and measure the outer diameter of the object using the outer diameter measuring head. Measure the dimensions and measure the temperature of the measured object using a temperature sensor at the same time, and calculate the outer diameter of the measured object using the thermal expansion correction amount calculated from the temperature of the measured object and the coefficient of thermal expansion of the measured object. This is corrected and converted to the outer diameter of the object to be measured at standard temperature and displayed.
しかしながら被測定物であるピストンは非円形
状をしているため、例えばその長径部を測定する
には、外径寸法測定ヘツドからの出力信号のピー
ク値をひろうために前記ピストンを揺動させなが
ら測定する必要があり、これによつて温度センサ
の先端とピストン外周とがこすり合い、被測定物
外周に傷をつけたり、摩擦熱によつて正確な温度
測定ができなくなつたり、また温度センサの先端
が摩耗したりする不具合があつた。 However, since the piston that is the object to be measured has a non-circular shape, for example, in order to measure its major diameter, the piston must be oscillated to obtain the peak value of the output signal from the outer diameter measurement head. This may cause the tip of the temperature sensor to rub against the outer circumference of the piston, damaging the outer circumference of the object to be measured, making accurate temperature measurement impossible due to frictional heat, or damaging the temperature sensor. There was a problem with the tip wearing out.
本考案は従来のこのような不具合を解消するた
めになされたもので、その目的とするところは揺
動アーム上の係合ピンを被測定物に係合させるこ
とによつて揺動アーム上の温度センサを被測定物
と共回りさせ、被測定物と温度センサとの間に相
対摩擦が生じないようにすることである。 The present invention was developed in order to eliminate such conventional problems, and its purpose is to engage the engagement pin on the swinging arm with the object to be measured, so that the The purpose is to make the temperature sensor rotate together with the object to be measured so that relative friction does not occur between the object to be measured and the temperature sensor.
本考案の他の目的とするところは、前記揺動ア
ームの角度を常に一定に維持し、被測定物のピン
穴に対して係合ピンをスムーズに係合させること
である。 Another object of the present invention is to maintain the angle of the swing arm constant at all times and to smoothly engage the engagement pin with the pin hole of the object to be measured.
以下本考案の実施例を図面に基いて説明する。
図中Ｗは非円形状をしたピストン等の被測定物
で、その中心軸線O1に対して直角な方向にピン
穴Whが形成されている。１０はこの被測定物Ｗ
を支持する支持体で、その上面には支持突起１１
が形成されている。この支持突起１１はＶ字状の
支持面１２を有し、この支持面１２によつて第２
図に示すように被測定物Ｗをその中心軸線O1が
揺動軸線O2に一致するように位置決め支持する
ようになつている。 Embodiments of the present invention will be described below with reference to the drawings.
In the figure, W indicates a non-circular piston or other object to be measured, and a pin hole Wh is formed in a direction perpendicular to the central axis O1 . 10 is this object to be measured W
A support body that supports the
is formed. This support protrusion 11 has a V-shaped support surface 12, and this support surface 12 allows the second
As shown in the figure, the object to be measured W is positioned and supported so that its central axis O 1 coincides with the swing axis O 2 .
また前記支持体１０上には一対の測定ヘツド１
３ａ，１３ｂが固定されている。この測定ヘツド
１３ａ，１３ｂは前記被測定物Ｗの第１直径線
L1すなわち長径部側に位置されるとともに被測
定物外周面との間に若干のすきまをおいて対向配
置され、その対向面には被測定物Ｗに向けてエア
を噴出するノズル１４ａ，１４ｂが開口されてい
る。これらノズル１４ａ，１４ｂは絞り１５ａ，
１５ｂ、レギユレータ１６を介してエア供給源１
７と接続され、このノズル１４ａ，１４ｂにエア
を供給するようになつている。そしてこのノズル
１４ａ，１４ｂと絞り１５ａ，１５ｂとの間には
ノズル背圧を検出する圧力検出器１８ａ，１８ｂ
が接続され、前記ノズル１４ａ，１４ｂと測定物
Ｗとの間のすきまを測定するようになつている。 Further, a pair of measurement heads 1 are mounted on the support 10.
3a and 13b are fixed. The measurement heads 13a, 13b are connected to the first diameter line of the object W to be measured.
L1 , that is, nozzles 14a and 14b located on the long diameter side and facing the outer circumferential surface of the object to be measured with a slight gap therebetween; is opened. These nozzles 14a, 14b have aperture 15a,
15b, air supply source 1 via regulator 16
7 to supply air to these nozzles 14a and 14b. Between the nozzles 14a, 14b and the throttles 15a, 15b are pressure detectors 18a, 18b for detecting nozzle back pressure.
are connected to measure the gap between the nozzles 14a, 14b and the object W to be measured.
一方支持体１０の下面には前記揺動軸線O2上
の枢軸２０によつて揺動アーム２１が揺動可能に
枢支されている。この揺動アーム２１は支持体１
０をまたいでその上方に屈曲するＬ形形状をな
し、その先端には被測定物Ｗのピン穴Whに係合
する係合ピン２２が嵌着保持されている。さらに
この揺動アーム２１には保持ロツド２３が進退可
能に案内支持され、この保持ロツド２３の一端に
は被測定物Ｗの温度を測定するサーミスタ等の温
度センサ２４が固定され、また他端には温度セン
サ２４が被測定物外周面に所定の接触圧で接触す
るようにスプリング２５による弾性力が付与され
ている。 On the other hand, a swing arm 21 is swingably supported on the lower surface of the support body 10 by a pivot shaft 20 on the swing axis O2 . This swinging arm 21 is
The engagement pin 22 is fitted and held at the tip of the engagement pin 22, which engages with the pin hole Wh of the object W. Further, a holding rod 23 is guided and supported on the swing arm 21 so as to be movable back and forth. A temperature sensor 24 such as a thermistor for measuring the temperature of the object W to be measured is fixed to one end of the holding rod 23, and a temperature sensor 24 such as a thermistor is fixed to the other end of the holding rod 23. An elastic force is applied by a spring 25 so that the temperature sensor 24 contacts the outer peripheral surface of the object to be measured with a predetermined contact pressure.
前記揺動アーム２１の両側には姿勢維持装置３
０が設けられている。この姿勢維持装置３０は、
前記支持体１０に進退可能に支持された一対の押
圧ロツド３１ａ，３１ｂに対してそれぞれスプリ
ング３２ａ，３２ｂの弾性力を付与する構成にな
つており、測定時にはこのスプリング３２ａ，３
２ｂがたわんで揺動アーム２１の共回りを許容
し、また非測定時にはこの一対のスプリング３２
ａ，３２ｂの弾性力によつて前記押圧ロツド３１
ａ，３１ｂは前記揺動アーム２１を両側より挾持
してその角度姿勢を拘束し、この揺動アーム２１
上の係合ピン２２の軸線を前記被測定物Ｗの第１
直径線L1に直角をなす第２直径線L2上に一致さ
せるようになつている。 Posture maintaining devices 3 are provided on both sides of the swing arm 21.
0 is set. This posture maintenance device 30 is
The structure is such that elastic forces of springs 32a, 32b are applied to a pair of pressing rods 31a, 31b, which are supported by the support body 10 so as to be movable back and forth, respectively.
2b is bent to allow the swinging arm 21 to rotate together, and when not measuring, this pair of springs 32
Due to the elastic force of a and 32b, the pressing rod 31
a and 31b sandwich the swinging arm 21 from both sides to restrain its angular posture;
The axis of the upper engagement pin 22 is aligned with the first axis of the object W to be measured.
It is arranged to coincide with a second diameter line L2 that is perpendicular to the diameter line L1 .
なお第１図において３４は圧力検出器１８ａ，
１８ｂならびに温度検出器２４の出力を演算処理
するコンピユータ、３５はAD変換器、３６はマ
ルチプレクサ、３７は表示器である。 In addition, in FIG. 1, 34 is a pressure detector 18a,
18b and a computer for processing the outputs of the temperature detector 24; 35 is an AD converter; 36 is a multiplexer; and 37 is a display.
次に上記構成における作動を説明する。先ず測
定すべき被測定物Ｗを、第１図に示すようにピン
穴Whが係合ピン２２の軸線と一致するようにし
て支持体１０上をすべらせながら一対の測定ヘツ
ド１４ａ，１４ｂ間へ挿入する。このとき係合ピ
ン２２は第２直径線L2上に位置するような角度
に姿勢が拘束されており、測定ヘツド１４ａ，１
４ｂに干渉することなくスムーズに被測定物Ｗを
係合ピン２２に係合させることができる。さらに
被測定物Ｗを挿入して支持面１２に当接させるこ
とにより、被測定物Ｗはその中心軸線O1が揺動
軸線O2と一致し、かつ長径部が測定ヘツド１３
ａ，１３ｂに対向する測定位置にセツトされ、ま
たその外周には温度センサ２４が接触する。 Next, the operation of the above configuration will be explained. First, as shown in FIG. 1, the object W to be measured is slid onto the support 10 so that the pin hole Wh coincides with the axis of the engagement pin 22, and is placed between the pair of measurement heads 14a and 14b. insert. At this time, the engagement pin 22 is restrained in its posture at an angle such that it is located on the second diameter line L2 , and the measurement heads 14a, 1
The object W to be measured can be smoothly engaged with the engagement pin 22 without interfering with the engagement pin 4b. Further, by inserting the object W to be measured and bringing it into contact with the support surface 12, the center axis O1 of the object W to be measured coincides with the swing axis O2 , and the major diameter portion of the object W is aligned with the measuring head 13.
The temperature sensor 24 is set at a measurement position opposite to a and 13b, and a temperature sensor 24 is in contact with the outer periphery thereof.
この測定位置において被測定物Ｗを揺動軸線
O2を中心として揺動させると、前記係合ピン２
２の作用により被測定物Ｗの揺動が揺動アーム２
１に伝えられる。これにより温度センサ２４は揺
動アーム２１とともに共回りし、温度センサ２４
は被測定物Ｗに対して相対すべりを生ずることな
く被測定物Ｗの温度を測定する。 At this measurement position, the object W is oscillated along the axis
When rocking around O 2 , the engagement pin 2
The swinging of the object W to be measured is caused by the action of swing arm 2.
1 can be conveyed. As a result, the temperature sensor 24 rotates together with the swing arm 21, and the temperature sensor 24 rotates together with the swing arm 21.
measures the temperature of the object to be measured W without causing relative slip to the object to be measured.
一方前記被測定物Ｗの揺動に伴つて被測定物Ｗ
と測定ヘツド１３ａ，１３ｂとの間のすきまが変
化し、ノズル背圧が変化する。この背圧変化は圧
力検出器１８ａ，１８ｂにて検出され、これを電
気信号に変換してコンピユータ３４へ出力する。
コンピユータ３４は周知の方法で圧力検出器１８
ａ，１８ｂからの出力のピーク値から被測定物Ｗ
の長径部の外径寸法を求める処理と、この長径部
寸法を前記温度センサ２４からの出力に基づいて
補正する処理を実行し、標準温度状態での被測定
物の長径部寸法を演算結果として表示器３７に表
示する。 On the other hand, as the object to be measured W swings, the object to be measured W
The clearance between the measuring heads 13a and 13b changes, and the nozzle back pressure changes. This back pressure change is detected by the pressure detectors 18a and 18b, which is converted into an electrical signal and output to the computer 34.
The computer 34 connects the pressure sensor 18 to the pressure sensor 18 in a well-known manner.
From the peak values of the outputs from a and 18b, the measured object W
The process of determining the outer diameter dimension of the major diameter part and the process of correcting this major diameter dimension based on the output from the temperature sensor 24 are executed, and the major diameter dimension of the object to be measured in the standard temperature state is calculated as the calculation result. It is displayed on the display 37.
前記したように本考案は、温度センサと被測定
物を共回りさせて、被測定物と温度センサ間の相
対摩擦が生じないようにした構成であるため、摩
擦熱によつて測定温度がばらついたり、あるいは
測定物に傷をつけたり、さらには温度センサの先
端が摩耗したりする不具合を全て防止できる利点
を有する。 As mentioned above, the present invention has a structure in which the temperature sensor and the object to be measured rotate together to prevent relative friction between the object to be measured and the temperature sensor, so that the measured temperature does not vary due to frictional heat. This has the advantage of being able to prevent all problems such as damage to the object to be measured, or wear of the tip of the temperature sensor.
さらに本考案は、姿勢維持装置によつて揺動ア
ームならびにこの揺動アーム上の係合ピンの姿勢
を常に一定の角度に維持するようにした構成であ
るため、この係合ピンに対して被測定物のピン穴
をスムーズに係合することができる利点を有す
る。 Furthermore, the present invention is configured such that the posture of the swing arm and the engagement pin on the swing arm is always maintained at a constant angle by the posture maintenance device, so that It has the advantage of being able to smoothly engage the pin hole of the object to be measured.
図面は本考案の実施例を示すもので、第１図は
本考案装置の全体構成を示す図、第２図は第１図
の−矢視断面図、第３図は第２図の−線
矢視断面図である。
１０……支持体、１３ａ，１３ｂ……測定ヘツ
ド、２１……揺動アーム、２２……係合ピン、２
４……温度センサ、３０……姿勢維持装置。
The drawings show an embodiment of the present invention; FIG. 1 is a diagram showing the overall configuration of the device of the present invention, FIG. 2 is a sectional view taken along the - arrow in FIG. It is an arrow sectional view. DESCRIPTION OF SYMBOLS 10... Support body, 13a, 13b... Measuring head, 21... Swinging arm, 22... Engaging pin, 2
4... Temperature sensor, 30... Posture maintenance device.
Claims (1)
状の支持面に当接させ、この被測定物の中心軸線
に垂直に交わる第１直径線上で被測定物の寸法を
測定ヘツドにより測定し、この測定値を測定時の
被測定物の温度に応じて補正するようにした温度
センサを有する寸法測定装置において、前記中心
軸線と同一軸線上の枢軸を中心として揺動可能な
揺動アームと、前記被測定物の温度を測定する前
記揺動アーム上の温度センサと、前記被測定物の
ピン穴に係合する前記揺動アーム上の係合ピン
と、測定時には被測定物に対する揺動アームの共
回りを許容し非測定時は前記係合ピンの軸線が前
記被測定物の第１直径線に直角をなす第２直径線
上に位置するように前記揺動アームを押圧してそ
の角度姿勢を維持する姿勢維持装置とを備えたこ
とを特徴とする温度センサを有する寸法測定装
置。 The cylindrical part of a cylindrical workpiece with a non-circular cross section is brought into contact with a V-shaped support surface, and the dimensions of the workpiece are measured using a measuring head on a first diameter line that intersects perpendicularly to the center axis of the workpiece. In a dimension measuring device having a temperature sensor that measures and corrects the measured value according to the temperature of a measured object at the time of measurement, the device is capable of swinging around a pivot that is coaxial with the central axis. an arm, a temperature sensor on the swing arm that measures the temperature of the object to be measured, an engagement pin on the swing arm that engages with a pin hole of the object to be measured, and a temperature sensor that measures the temperature of the object to be measured; Pressing the swinging arm so that the axis of the engaging pin is located on a second diameter line perpendicular to the first diameter line of the object to be measured when the swinging arm is allowed to rotate together and when not measuring. 1. A dimension measuring device having a temperature sensor, comprising: a posture maintaining device for maintaining an angular posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3163982U JPS58134712U (en) | 1982-03-05 | 1982-03-05 | Dimension measuring device with temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3163982U JPS58134712U (en) | 1982-03-05 | 1982-03-05 | Dimension measuring device with temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58134712U JPS58134712U (en) | 1983-09-10 |
| JPH0127043Y2 true JPH0127043Y2 (en) | 1989-08-14 |
Family
ID=30043307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3163982U Granted JPS58134712U (en) | 1982-03-05 | 1982-03-05 | Dimension measuring device with temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58134712U (en) |
-
1982
- 1982-03-05 JP JP3163982U patent/JPS58134712U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58134712U (en) | 1983-09-10 |
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