JPH0145841B2 - - Google Patents
Info
- Publication number
- JPH0145841B2 JPH0145841B2 JP14627381A JP14627381A JPH0145841B2 JP H0145841 B2 JPH0145841 B2 JP H0145841B2 JP 14627381 A JP14627381 A JP 14627381A JP 14627381 A JP14627381 A JP 14627381A JP H0145841 B2 JPH0145841 B2 JP H0145841B2
- Authority
- JP
- Japan
- Prior art keywords
- movable plate
- measuring
- measuring device
- pair
- height
- 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 12
- 238000000034 method Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
- G01B7/287—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
Description
【発明の詳細な説明】
本発明は、バルブクリアランス測定機の構成部
分を成し、かつバルブリフタの高さ測定に用いら
れる複数点の基準面からの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 from a plurality of reference planes, which forms a component of a valve clearance measuring device and is used to measure the height of a valve lifter.
自動車用エンジンのシリンダヘツドの組立状態
においては、例えば第１図および第２図に示す４
気筒シリンダヘツドＷのように、各吸・排気バル
ブＶのステムＥの頂部にプランジヤ形のリフタＬ
が固設されていて、同リフタＬの皿面状の上面に
は、カムシヤフトＴに成形されたカムＣとの間の
クリアランスを調整するためのシムＳ（第２図に
表記）が嵌着されている。 In the assembled state of the cylinder head of an automobile engine, for example, 4 as shown in FIGS. 1 and 2 is used.
Like the cylinder head W, there is a plunger-shaped lifter L on the top of the stem E of each intake/exhaust valve V.
is fixedly installed, and a shim S (shown in Fig. 2) is fitted onto the dished upper surface of the lifter L to adjust the clearance between it and the cam C formed on the camshaft T. ing.
しかしてシリンダヘツドＷの組立工程において
は、厚さ寸度の異る多種のシムＳ材料が供給され
ていて、カムシヤフトＴの組寸けに当つては、
夫々のシリンダヘツドＷ毎に各バルブＶの組付寸
度に対応した厚さのシムＳを選択使用する必要が
あり、このことから、現品のバルブクリアランス
BC、すなわちカムＣベース高さHBとリフタＬ
上面高さHLとの高程を検測した上で、使用シム
Ｓを決めるようにしている。 However, in the assembly process of the cylinder head W, various shim S materials with different thicknesses are supplied, and when assembling the camshaft T,
It is necessary to select and use a shim S with a thickness that corresponds to the assembly dimensions of each valve V for each cylinder head W. Therefore, the actual valve clearance
BC, i.e. cam C base height HB and lifter L
The shim S to be used is determined after measuring the height from the top surface height HL.
ところで、従来慣用されているクリアランス
BC検測方法には、直接方式と間接方式の２つの
方式があつて、先ず直接方式では、カムシヤフト
Ｔを仮組付けした上で、手持ちゲージを使つて直
接隙間を測つており、この方式によると、手間が
大変であるばかりでなく、高い精度が得難いとい
う欠点がある。 By the way, the conventionally used clearance
There are two types of BC measurement methods: direct method and indirect method. Firstly, in the direct method, the camshaft T is temporarily assembled and the gap is directly measured using a hand-held gauge. This has the disadvantage that it is not only time-consuming but also difficult to achieve high accuracy.
一方、間接方式の場合は、シリンダヘツドＷに
関しては、シヤフトジヤーナルＪの軸受面Ｆ（現
実には、ベアリング内周面）高さHJと、リフタ
Ｌ上面高さHLとの高程d1を測ると共に、カムシ
ヤフトＴに関しては、ジヤーナルＪ周面高さHJ
と、カムＣベース周面高さHBとの高程d2を測
り、両測定値の較差演算によつてクリアランス
BCを求めているが、しかし従来は、高程d1，d2
の検測を、基準治具等を使い手操作で各バルブＶ
ごとに実施していたことから、シヤフトＴを仮組
付けする手間が省ける一方で、これを上回る手間
がかかつており、その結果、シリンダヘツドＷの
生産性と組立品質の向上が困難とされており、特
に、多気筒エンジンにおいてその傾向が著しかつ
た。 On the other hand, in the case of the indirect method, for the cylinder head W, measure the height d 1 between the height HJ of the bearing surface F of the shaft journal J (actually, the inner peripheral surface of the bearing) and the height HL of the top surface of the lifter L. , for camshaft T, journal J circumferential height HJ
Measure the height d2 between the cam C base circumferential surface height HB and calculate the clearance by calculating the difference between the two measured values.
We are looking for BC, but conventionally, the heights d 1 , d 2
The inspection of each valve V is performed manually using a reference jig, etc.
While this saves the trouble of temporarily assembling the shaft T, it requires more effort, and as a result, it is difficult to improve the productivity and assembly quality of the cylinder head W. This tendency was particularly noticeable in multi-cylinder engines.
本発明は、このような現状に鑑みなされたもの
であつて、すなわち、本発明の目的は、ジヤーナ
ル軸受面高さHJを基準とし、多数箇所のバルブ
リフタ上面の高さHLを、機械的かつ同時作動的
に検測し得るようにした複数点の基準面からの寸
法測定装置を提供することにある。 The present invention has been made in view of the current situation, and an object of the present invention is to mechanically and simultaneously adjust the height HL of the upper surface of the valve lifter at multiple locations based on the journal bearing surface height HJ. It is an object of the present invention to provide a dimension measuring device from a reference plane at a plurality of points, which enables operational measurement.
以下、図示の一実施例に基づいて本発明を説明
する。 The present invention will be described below based on an illustrated embodiment.
実施例の寸法測定装置としてのバルブリフタ高
さ測定装置は、第３図ないし第７図に示すバルブ
クリアランス測定機の構成の一部をなしていて、
下述するように、測定機中段の右方半部を形成し
ている。 The valve lifter height measuring device as the dimension measuring device of the embodiment forms part of the configuration of the valve clearance measuring device shown in FIGS. 3 to 7,
As described below, it forms the middle right half of the measuring machine.
なお、測定機全体に関連する機構としては、長
箱形外形を有する制御演算機構１が上段に設置さ
れると共に、測定機の下段には、ワークとしての
シリンダヘツドＷを搬送するための横通レール２
と、その搬送駆動に関連する機構とが配置されて
いる。 In addition, as a mechanism related to the entire measuring machine, a control calculation mechanism 1 having a long box-shaped external shape is installed in the upper stage, and a cross passage for conveying the cylinder head W as a work is installed in the lower stage of the measuring machine. rail 2
and a mechanism related to its transport drive are arranged.
ところで、バルブリフタ高さ測定装置３は、支
持台４の左右の軸受５間に横架された支軸６に枢
支されると共に、装置３の骨体構造は、支軸６を
中心としてシーソー揺動する梯子形のビーム７
と、同ビーム７の先端にＴ形に固設された長手方
向のフレーム８とにより形成されていて、かつビ
ーム７の中間部は、２箇所で桟板７ａ，７ｂによ
り結合されている。 By the way, the valve lifter height measuring device 3 is pivotally supported on a support shaft 6 that is horizontally suspended between left and right bearings 5 of a support base 4, and the bone structure of the device 3 is able to see-saw around the support shaft 6. Moving ladder-shaped beam 7
and a longitudinal frame 8 fixed in a T-shape at the tip of the beam 7, and the intermediate portion of the beam 7 is connected at two points by crosspieces 7a and 7b.
更に、フレーム８枠内の前側半面には、厚手の
基板１０が展装されると共に、同基板１０の下方
には、シリンダヘツド（以下、ワークという）Ｗ
に対接する等形の可動板１１が懸下されていて、
同可動板１１は、左右のステム１２を介して基板
１０に保持されている。 Further, a thick board 10 is mounted on the front half of the frame 8, and below the board 10 is a cylinder head (hereinafter referred to as a workpiece) W.
A movable plate 11 of equal shape is suspended,
The movable plate 11 is held on the substrate 10 via left and right stems 12.
具体的に、中間の球継手１３によつて屈折自在
のステム１２の上端は、固定ナツト１４により基
板１０に締着されると共に、ステム１２の下端に
は、可動板１１の側端が抜止めリング１５により
抜止め保持されており、かつ該側端は、ステム１
２下部の細径部に巻装された強力な圧縮コイルば
ね１６の弾力により、基板１０との間の間隔を開
く方向に付勢されている。 Specifically, the upper end of the stem 12, which can be bent freely by an intermediate ball joint 13, is fastened to the base plate 10 by a fixing nut 14, and the side end of the movable plate 11 is attached to the lower end of the stem 12 to prevent it from coming out. It is held in place by a ring 15, and the side end is attached to the stem 1.
2 is biased by the elasticity of a strong compression coil spring 16 wound around the narrow diameter portion of the lower part of the substrate 10 in the direction of increasing the distance between the substrate 10 and the substrate 10.
次に、左右両端がステム１２に抜止め保持され
た可動板１１は、長手中央箇所の上半部の肉が盗
まれて薄肉部１１ａを成し、これは、長手中央の
剛性を局部的に弱めることにより、ワークＷの撓
みに倣い易くしたものである。 Next, the movable plate 11, whose left and right ends are held by the stem 12 so as not to come off, has the upper half of the center part of the longitudinal part stolen to form a thin part 11a, which locally reduces the rigidity of the center part of the longitudinal direction. By weakening it, it is made easier to follow the bending of the workpiece W.
そのほか可動板１１には、下面の側端寄り箇所
に、ワークＷの軸受面Ｆに嵌入するそろばん玉形
の基準脚１７が固着突設されると共に、下面の中
央箇所には、同様な中間脚１８が突設されてお
り、また可動板１１の上面には、各脚１７，１８
の上方位置に錘形の荷重受１９，２０が突設され
ている。 In addition, on the movable plate 11, an abacus-shaped reference leg 17 that fits into the bearing surface F of the workpiece W is fixed and protruded at a location near the side end of the lower surface, and a similar intermediate leg is provided at the center of the lower surface. 18 are provided protrudingly, and each leg 17, 18 is provided on the upper surface of the movable plate 11.
Plume-shaped load receivers 19 and 20 are protrudingly provided above.
一方、基板１０の左右側部と中央位置の夫々に
は、重量の大きい１対の主重錘２１と軽量重錘２
２とが載置されると共に、基板１０を貫通して垂
下する各重錘２１，２２の軸ピン２３，２４の各
下端は、各荷重受１９，２０の直上至近に対接し
ており、これにより、可動板１１に押上げ外力が
かかつた場合、或程度までコイルばね１６が縮ん
だ以後は、各重錘２１，２２の重量荷重が直接可
動板１１にかかるようになつている。 On the other hand, a pair of heavy main weights 21 and a light weight 2 are mounted on the left and right sides and the center of the board 10, respectively.
The lower ends of the shaft pins 23 and 24 of the respective weights 21 and 22, on which the weights 21 and 22 are placed and which hang down through the substrate 10, are in direct contact with each other directly above and close to each of the load receivers 19 and 20. Therefore, when an external pushing force is applied to the movable plate 11, the weight loads of the weights 21 and 22 are directly applied to the movable plate 11 after the coil spring 16 has contracted to a certain extent.
なお、ビーム７の後端には、３つの重錘２１，
２２の総重量より若干軽いバラスト２５が取付け
られていて、これによりビーム７は、わずかなト
ルクで前下がり習性を有するが、前部の桟板７ａ
の下面が、操作制御に基づいて昇降動する図示し
ない支杆に衝合することにより、測定不作動時に
は、可動板１１がわずかにワークＷの高さから浮
上つた状態に保たれている。 In addition, at the rear end of the beam 7, there are three weights 21,
A ballast 25 that is slightly lighter than the total weight of the beam 7 is attached, which causes the beam 7 to have a tendency to fall forward with a slight torque, but the front crosspiece 7a
The lower surface of the movable plate 11 abuts against a support rod (not shown) that moves up and down based on operational control, so that the movable plate 11 is kept slightly elevated above the height of the workpiece W when measurement is not performed.
次に、可動板１１の上面の中間部には、ワーク
ＷのバルブＶ数と同数の保持筒２６の各基部が、
整列した状態でビス締着されると共に、各保持筒
２６の上部内孔には、測長器としての差動トラン
ス２７が嵌着されている。 Next, in the middle part of the upper surface of the movable plate 11, the bases of holding cylinders 26 of the same number as the number of valves V of the workpiece W are arranged.
They are screwed together in an aligned state, and a differential transformer 27 as a length measuring device is fitted into the upper inner hole of each holding cylinder 26.
しかして、各差動トランス２７の測定ピンに連
成されて可動板１１を貫通垂下する接続ピン２８
の下端には、スイングブロツク２９の中心軸が枢
支されていて、かつ同ブロツク２９の下面の両側
には、１対の測定子３０が突設されてワークＷの
リフタＬに対接している。 Thus, the connecting pin 28 is connected to the measuring pin of each differential transformer 27 and hangs down through the movable plate 11.
A central axis of a swing block 29 is pivotally supported at the lower end of the swing block 29, and a pair of probes 30 are protruded from both sides of the lower surface of the swing block 29 and are in contact with the lifter L of the workpiece W. .
なお、フレーム８の上述した上部構造体と下部
構造体とは、夫々カバー３１とカバー３２とによ
つて覆われている。 Note that the above-mentioned upper structure and lower structure of the frame 8 are covered by a cover 31 and a cover 32, respectively.
ここで、上述のバルブリフタ高さ測定装置３に
併設されたカムベース高さ測定機構３３の概要に
つき説明する。 Here, an overview of the cam base height measuring mechanism 33 provided in conjunction with the above-mentioned valve lifter height measuring device 3 will be explained.
同測定機構３３は、中央に位置する測定部３４
と、左方に位置する駆動部３５と、右方に位置す
る従動部３６とにより形成されていて、先ず測定
部３４には、ワークとしてのカムシヤフトＴが支
承される左右の軸受治具３７，３８が形成されて
いるほか、測定端３９ａを各カムＣの周底および
各ジヤーナルＪの周底に当接させた複数の測定レ
バー３９が設けられていて、かつ測定レバー３９
の反対端の下面には、支台４０に取付けられた回
数の差動トランス４１の各測定ピンが当接してい
る。 The measuring mechanism 33 includes a measuring section 34 located in the center.
The measuring section 34 is formed by a drive section 35 located on the left and a driven section 36 located on the right. 38 is formed, and a plurality of measuring levers 39 are provided, each of which has a measuring end 39a in contact with the circumferential bottom of each cam C and the circumferential bottom of each journal J.
Each measuring pin of the differential transformer 41 attached to the support base 40 is in contact with the lower surface of the opposite end.
次に、駆動部３５には、スリーブ４２内を摺動
自在のカムシヤフトＴ駆動用伝動軸４３が設けら
れていて、同伝動軸４３は、エアシリンダ４４の
駆動によりシヤフトＴ側に突出して同シヤフトＴ
を一体駆動し、あるいはシヤフトＴから離退して
動力伝達を止めるように形成され、これにより、
シヤフトＴの治具３７への差入れを可能にしてい
る。 Next, the drive part 35 is provided with a transmission shaft 43 for driving the camshaft T that is slidable inside the sleeve 42, and the transmission shaft 43 is driven by the air cylinder 44 to protrude toward the shaft T side and drive the camshaft T. T
It is formed so as to integrally drive the shaft T, or to separate from the shaft T and stop power transmission.
This allows the shaft T to be inserted into the jig 37.
なお、同伝動軸４３は、プーリを介し図示しな
い駆動モータによつて駆動されるようになつてい
る。 The transmission shaft 43 is driven by a drive motor (not shown) via a pulley.
次に、従動部３６には、駆動軸４３と同様にシ
ヤフトＴに接離し得る遊動軸が形成されていて、
シヤフトＴの片端を保持する作用を行つている。 Next, the driven part 36 is formed with an idle shaft that can move toward and away from the shaft T in the same manner as the drive shaft 43.
It functions to hold one end of the shaft T.
以下、上述構成による実施例の寸法測定装置の
作動について説明する。 Hereinafter, the operation of the dimension measuring device according to the embodiment having the above-described configuration will be explained.
先ず、バルブクリアランス測定機の全体作動と
しては、バルブＶの組付けが終つたワークＷが、
レール２の右方からレール２上に送込まれると共
に、材料部品としてのカムシヤフトＴが、作業者
の手で軸受治具３７，３８上に差入れられ、その
後、リフタ高さ測定装置３の作動と、カムベース
高さ測定機構３３の作動とが併行して実施され
る。 First, as for the overall operation of the valve clearance measuring machine, the work W after the valve V has been assembled is
The camshaft T as a material component is fed onto the rail 2 from the right side of the rail 2, and is inserted onto the bearing jigs 37 and 38 by the operator's hands, and then the lifter height measuring device 3 is activated. , and the operation of the cam base height measuring mechanism 33 are performed in parallel.
ところで、ワークＷは、レール２への搬入が検
知された後、すべて制御演算機構１の指令に基づ
いて処理操作されるが、初めに、搬送駆動機構に
よつてフレーム８の直下位置に移送された上で、
その位置にクランプされる。 By the way, after the workpiece W is detected to be carried onto the rail 2, all processing operations are performed based on the commands from the control calculation mechanism 1. First, the workpiece W is transferred to a position directly below the frame 8 by the transport drive mechanism. After that,
It will be clamped in that position.
次で、クランプ作動が検知されると、桟板７ａ
を下方から衝止していた支杆が降動し、これにつ
れ、フレーム８が降下して左右の基準脚１７が、
ワークＷ両端の軸受面Ｆに接触する。 Next, when the clamp operation is detected, the crosspiece 7a
The support rod that was blocking the frame from below lowers, and as a result, the frame 8 lowers and the left and right reference legs 17 move.
It contacts the bearing surfaces F at both ends of the workpiece W.
この時、可動板１１はステム１２の作用で横振
れ可能であることから、基準脚１７は軸受面Ｆに
倣つて降動し、従つて同脚１７は、正しくかつ密
に軸受面に嵌合して衝止される。 At this time, since the movable plate 11 can swing laterally due to the action of the stem 12, the reference leg 17 moves down following the bearing surface F, so that the leg 17 is correctly and tightly fitted to the bearing surface. and is blocked.
しかして可動板１１の衝合後は、コイルばね１
６を圧縮させながら基板１０が引続き降下し、次
で各重錘２１，２２の軸ピン２３，２４が荷重受
１９，２０に当つた後は、基板１０は重錘２１，
２２を置去りにして下限まで降下し、この状態で
は、各重錘２１，２２の重量荷重は、可動板１１
の３点で担持される。 After the movable plate 11 collides, the coil spring 1
The board 10 continues to descend while compressing the weights 6, and after the shaft pins 23, 24 of the respective weights 21, 22 hit the load receivers 19, 20, the board 10 moves downwards while compressing the weights 21, 22.
22 and descends to the lower limit, and in this state, the weight load of each weight 21, 22 is transferred to the movable plate 11.
It is supported by three points.
この間各差動トランス２７の測定子３０は、
夫々のリフタＬ上面に当つて、各接続ピン２８を
付勢するコイルばねの弾力に基づく所定の測定圧
でリフタＬに圧接する。 During this time, the probe 30 of each differential transformer 27 is
The upper surface of each lifter L is pressed against the lifter L with a predetermined measuring pressure based on the elasticity of the coil spring that urges each connection pin 28.
次に、基板１０の下限降下が検知されると、各
バルブＶごとの作動トランス２７の測定値出力が
制御演算機構１に入力された上で記録されるが、
この時の測定値は、高程d1である。 Next, when the lower limit drop of the substrate 10 is detected, the measured value output of the operating transformer 27 for each valve V is input to the control calculation mechanism 1 and recorded.
The measured value at this time is height d1 .
この記録が終つた処で、ビーム７が元の高さに
戻ると共に、ワークＷは、レール２の左端に移送
される。 At the end of this recording, the beam 7 returns to its original height and the workpiece W is transferred to the left end of the rail 2.
一方これと併行し、カムベース高さ測定機構３
３では、各ジヤーナルＪ周底と各カムＣベース周
底の高さが、夫々の作動トランス４１で計測され
た後、その計測値が制御演算機構１に記録された
後、較差演算によつて高程d2が記録される。 On the other hand, in parallel with this, the cam base height measuring mechanism 3
3, the heights of the circumference bottom of each journal J and the circumference bottom of each cam C base are measured by the respective actuating transformers 41, and after the measured values are recorded in the control calculation mechanism 1, they are calculated by difference calculation. The height d 2 is recorded.
しかして、制御演算機構１においては、上記両
高程d1，d2が記録された時点において、各バルブ
Ｖごとの上記両高程d1，d2の較差演算に基づき、
夫々バルブクリアランBCが計出された後、その
クリアランスBC値に対応したシム種別が索定さ
れ、その種別記号が記録されると共に、同記号
は、リフタＬにシムＳを取付ける次工程に表示さ
れる。 Therefore, in the control calculation mechanism 1, at the time when the above-mentioned heights d 1 and d 2 are recorded, based on the difference calculation of the above-mentioned heights d 1 and d 2 for each valve V,
After each valve clear run BC is calculated, the shim type corresponding to the clearance BC value is found and its type symbol is recorded, and the same symbol is displayed in the next process of attaching the shim S to the lifter L. Ru.
以上述べたように、本発明に係る複数点の基準
面からの寸法測定装置によれば、複数の各測定点
に対向する位置に夫々個有の測長器が取付けられ
ている可動板の中間部に、薄肉部を成形させると
共に、その両端と薄肉部の下面に、基準面に衝合
する基準脚と中間脚とを突出せしめ、かつ、重錘
の重量荷重を用いて同可動板を基準面上に降下さ
せた状態で高程計測を行わせるように構成したの
で、機械的に複数点の同時測定が可能となるほ
か、基準面の撓みに起因する測定誤差が排除さ
れ、これにより、測定精度と測定効率を高める効
果がある。 As described above, according to the dimension measuring device from a plurality of reference planes according to the present invention, the middle of the movable plate has its own length measuring device installed at a position facing each of the plurality of measurement points. At the same time, a thin-walled part is formed in the part, and a reference leg and an intermediate leg that abut against a reference surface are protruded from both ends and the lower surface of the thin-walled part, and the movable plate is set as a reference by using the weight load of a weight. Since it is configured to perform high-level measurements while being lowered onto the surface, it is possible to mechanically measure multiple points at the same time, and measurement errors caused by deflection of the reference surface are eliminated. It has the effect of increasing accuracy and measurement efficiency.
第１図は、エンジンシリンダヘツドの側面図、
第２図は、第１図の−線における後断面図、
第３図は、本発明の一実施例を示す複数点の基準
面からの寸法測定装置の正面図、第４図は、同左
側面図、第５図は、第３図のＶ−Ｖ線における平
断面図、第６図は、第４図の矢指における部分
正面図、第７図は、第５図の−線における部
分側断面図である。
HJ……基準面をなすジヤーナル軸受面、Ｌ…
…測定点としてのリフタ上面、１１……可動板、
１１ａ……薄肉部、１７……基準脚、１８……中
間脚、２１……主重錘、２２……軽量重錘、２７
……測長器としての差動トランス。
Figure 1 is a side view of the engine cylinder head;
FIG. 2 is a rear sectional view taken along the - line in FIG. 1;
FIG. 3 is a front view of a dimension measuring device from a plurality of reference planes showing an embodiment of the present invention, FIG. 4 is a left side view of the same, and FIG. 6 is a partial front view taken along the arrow in FIG. 4, and FIG. 7 is a partial side sectional view taken along the line - in FIG. 5. HJ...Journal bearing surface forming the reference surface, L...
...Lifter top surface as a measurement point, 11...Movable plate,
11a... Thin wall part, 17... Reference leg, 18... Intermediate leg, 21... Main weight, 22... Light weight, 27
...Differential transformer as a length measuring device.
Claims (1)
箇所の測定点について基準面からの上下寸法を計
測する測定装置において、上記基準面の上方に対
接して昇降可能に支持された可動板であつて、か
つ、長手方向中間部の少くとも１箇所には、剛性
を下げるための薄肉部が成形されている可動板
と、同可動板の上記各測定点に対向する位置に取
付けられていて、かつ、測定ピンを下向きに突出
させている複数の測長器と、同可動板の両側端の
下面に突設された１対の基準脚と、同可動板の上
記薄肉部の下面に突設された中間脚と、測定時に
おいて重量荷重が上記可動板の各側端部に担持さ
れる１対の生産錘と、測定時において重量荷重が
上記可動板の薄肉部に担持される軽量重錘とが形
成されていて、これにより各測長器は、該可動板
が降下して上記各脚を上記基準面に衝合させた測
定状態にあつては、夫々の所定測定圧より十分に
高い下向き応力を介して各測定点に測定子を押圧
されていることを特徴とする複数点の基準面から
の寸法測定装置。1. In a measuring device that measures the vertical dimension from a reference plane at multiple measurement points arranged in a horizontally longitudinal reference plane, a movable plate that is supported so as to be able to rise and fall in opposition to the upper part of the reference plane. A movable plate having a thin wall portion molded therein to reduce rigidity at at least one location in the middle portion in the longitudinal direction, and a movable plate attached to the movable plate at a position opposite to each of the above measurement points. , and a plurality of length measuring devices having measuring pins protruding downward, a pair of reference legs protruding from the lower surface of both ends of the movable plate, and a pair of reference legs protruding from the lower surface of the thin portion of the movable plate. a pair of production weights whose weight loads are carried on each side end of the movable plate during measurement; and a lightweight weight whose weight loads are carried on the thin-walled portions of the movable plate during measurement. A weight is formed, so that each length measuring device can receive a pressure sufficiently higher than the respective predetermined measuring pressure in the measurement state in which the movable plate is lowered and the legs are brought into contact with the reference surface. A dimension measuring device from a plurality of reference planes, characterized in that a measuring element is pressed against each measuring point through a high downward stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14627381A JPS5848801A (en) | 1981-09-18 | 1981-09-18 | Measuring device for dimension of plural points from standard surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14627381A JPS5848801A (en) | 1981-09-18 | 1981-09-18 | Measuring device for dimension of plural points from standard surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5848801A JPS5848801A (en) | 1983-03-22 |
| JPH0145841B2 true JPH0145841B2 (en) | 1989-10-05 |
Family
ID=15404002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14627381A Granted JPS5848801A (en) | 1981-09-18 | 1981-09-18 | Measuring device for dimension of plural points from standard surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848801A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5444766B2 (en) * | 2009-03-05 | 2014-03-19 | 日産自動車株式会社 | Stem end position measuring apparatus and method |
-
1981
- 1981-09-18 JP JP14627381A patent/JPS5848801A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5848801A (en) | 1983-03-22 |
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