JPH0293301A - Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof - Google Patents

Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof

Info

Publication number
JPH0293301A
JPH0293301A JP24432888A JP24432888A JPH0293301A JP H0293301 A JPH0293301 A JP H0293301A JP 24432888 A JP24432888 A JP 24432888A JP 24432888 A JP24432888 A JP 24432888A JP H0293301 A JPH0293301 A JP H0293301A
Authority
JP
Japan
Prior art keywords
engine valve
piston rod
air cylinder
fixed
plate
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.)
Pending
Application number
JP24432888A
Other languages
Japanese (ja)
Inventor
Takeshi Yano
猛 矢野
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.)
Fuji Oozx Inc
Original Assignee
Fuji Valve 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 Fuji Valve Co Ltd filed Critical Fuji Valve Co Ltd
Priority to JP24432888A priority Critical patent/JPH0293301A/en
Publication of JPH0293301A publication Critical patent/JPH0293301A/en
Pending legal-status Critical Current

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  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

PURPOSE:To simultaneously measure the full length of a work and the diameter of a cap portion thereof by setting an indicating value of a first and a second measuring instruments to be 0 while a standard item is held by a holder device, removing said standard item thereby to let said work be held by said holder device and extending a first and a second air cylinders. CONSTITUTION:A standard of an engine valve 6 is held by a holder device, and a first air cylinder 17 is extended. Accordingly, a cap portion 6a of the valve 6 is pressed and positioned by a piston rod 17b. Then, a piston rod 23a of a second air cylinder 23 is extended thereby to press both pressure plates 24 into contact with a peripheral edge of the cap portion 6a. A first and a second measuring instruments 20, 29 are arranged to indicate 0. Hereafter, if the valve 6 to be measured is allowed to be held by the holder device A and the first and second air cylinders are extended, a size error of the full length of the valve 6 and the diameter of the cap portion 6a is indicated by the first and second measuring instruments 20, 29, respectively.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、製作中あるいは製作後のエンジンバルブ(以
下ワークという)の全長と、その傘部の直径の寸法精度
が、許容範囲内にあるか否かを、同時に測定しうる装置
に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a method in which the dimensional accuracy of the overall length of an engine valve (hereinafter referred to as a workpiece) and the diameter of its umbrella portion during or after manufacture is within an allowable range. This invention relates to a device that can simultaneously measure whether the

〔従来の技術〕[Conventional technology]

従来、ワークの全長と傘部の直径の寸法精度は、それぞ
れ別個に測定されており、これらを同時に測定する装置
は存在しなかった。
Conventionally, the dimensional accuracy of the total length of the workpiece and the diameter of the umbrella portion have been measured separately, and there has been no device that can measure both at the same time.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

そのため、ワークの各部の寸法精度の測定が煩雑であり
、生産能率の向上を阻害している。
Therefore, measuring the dimensional accuracy of each part of the workpiece is complicated, which impedes improvement in production efficiency.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は、ワークを、保持装置をもって所定の位置に保
持して、標準品に対する全長の寸法精度を測定する際、
vA準品に対する傘部の直径の寸法精度をも、同時に測
定しうるようにすることにより、上述の課題の解決を図
ったものである。
In the present invention, when holding a workpiece in a predetermined position with a holding device and measuring the dimensional accuracy of the entire length with respect to a standard product,
The above-mentioned problem is solved by making it possible to simultaneously measure the dimensional accuracy of the diameter of the umbrella part for the vA quasi-product.

〔作 用〕 本発明の装置によると、ワークは、保持装置により、軸
線方面には移動可能で、かつ軸線と直角方向には移動不
能に保持されるので、初めにエンジンバルブの標準品を
保持装置に保持し、第1エヤーシリンダを伸長させて、
ピストンロッドで標準品の傘部を押しつつ、傘部の周縁
が圧接板の前後方向のほぼ中央に位置するように、位置
決め装置を固定し、ついで、両筒2エヤーシリンダのピ
ストンロッドを伸長させて、両圧接板を傘部の周縁に圧
接させ、第1・第2両測定器の表示値をOに設定してお
けば、以後、ワークを保持装置に保持させて、第1エヤ
ーシリンダを伸長させ、ついで間第2エヤーシリンダを
伸長させれば、ワークの全長と傘部の直径の寸法誤差が
、それぞれ第1測定器と第2測定器に表示される。
[Function] According to the device of the present invention, the work is held movable in the axial direction by the holding device but not movable in the direction perpendicular to the axis. holding it in the device and extending the first air cylinder,
While pushing the standard umbrella part with the piston rod, fix the positioning device so that the peripheral edge of the umbrella part is located approximately in the center of the pressure contact plate in the front and back direction, and then extend the piston rod of the double air cylinder. Then, by pressing both pressure contact plates against the periphery of the umbrella part and setting the display values of both the first and second measuring devices to O, from now on, the workpiece is held by the holding device and the first air cylinder is moved. When the workpiece is extended and then the second air cylinder is extended, the dimensional errors in the overall length of the workpiece and the diameter of the umbrella part are displayed on the first measuring device and the second measuring device, respectively.

保持装置は、固定位置を前後に移動させうるので、同一
の本発明装置を、サイズの異なる多種のワークに使用す
ることができる。
Since the holding device can move its fixed position back and forth, the same device of the invention can be used for a variety of workpieces of different sizes.

〔実施例〕〔Example〕

以下、本発明の一実施例を、添付の図面に基いて説明す
る。なお方向は、第1図の右部を前部、同じく上部を右
部とする。
An embodiment of the present invention will be described below with reference to the accompanying drawings. Note that the right side in FIG. 1 is the front, and the top is the right side.

水平をなす十字形の第1基板(1)の下方には、水平を
なす左右方向に長尺の第2基板(2)が。
Below the horizontal cross-shaped first substrate (1) is a horizontal second substrate (2) that is elongated in the left-right direction.

連結板(3)をもって一体に連結されている。They are connected together by a connecting plate (3).

第1基板(1)のほぼ中央、かつ第2基板(2)の上方
には、側面形がU字形をなす保持台(4)が立設され、
重役両立上片(4a) (4a)の上端面に切設した7
字溝(5)(5)には、ワーク(6)が、傘部(6a)
を前方にして載置されている。
A holding stand (4) having a U-shaped side surface is erected approximately in the center of the first substrate (1) and above the second substrate (2);
7 cut on the upper end surface of the upper piece (4a) (4a)
The workpiece (6) is in the groove (5) (5), and the umbrella part (6a)
It is placed with the front facing forward.

第4図に示すように、第2基板(2)の左端に立設した
第1枢支具(7)の上端には、ワーク(6)方向を向く
揺動エヤーシリンダ(8)が枢支されている。
As shown in Fig. 4, a swinging air cylinder (8) facing toward the workpiece (6) is pivotally supported at the upper end of the first pivot fixture (7) installed at the left end of the second board (2). has been done.

揺動エヤーシリンダ(8)のピストンロッド(8a)の
先端には、前面形かく字形をなす揺動板(9)の中央が
枢着され、揺動板(9)の下端は、連結板(3)に横向
きに固着した第2枢支具(10)の先端に枢着され、ま
た揺動板(9)の上端には、左右方向を向く抑圧ローラ
(11)が枢設されている。
The center of a rocking plate (9) having a dogleg shape on the front is pivotally attached to the tip of the piston rod (8a) of the rocking air cylinder (8), and the lower end of the rocking plate (9) is attached to the connecting plate ( A suppression roller (11) facing in the left-right direction is pivotally attached to the tip of a second pivot (10) fixed laterally to the swing plate (9).

従って、揺動エヤーシリンダ(8)が伸長すると、揺動
板(9)の上部が右下方に揺動して、ローラ(11)が
保持台(4)上のワーク(6)の軸部(6b)を押圧し
、ワーク(6)を、軸線方向には移動可能に、また軸線
と直角方向には移動不能に保持する。
Therefore, when the swinging air cylinder (8) extends, the upper part of the swinging plate (9) swings downward to the right, and the roller (11) moves the shaft ( 6b) to hold the workpiece (6) movable in the axial direction but immovable in the direction perpendicular to the axis.

図示を省略したが、揺動エヤーシリンダ(8)が短縮す
ると、ローラ(11)が左上方に移動するので、ワーク
(6)を保持台(4)より取り外すことができる。
Although not shown, when the swinging air cylinder (8) is shortened, the roller (11) moves to the upper left, allowing the workpiece (6) to be removed from the holding table (4).

第1図と第2図に示すように、第1基板(1)における
保持台(4)の後方には、右側面形がL字形の調節台(
12)が、前後摺動自在に支持され、調節台(12)の
前面に設けた突起(13)は、ワーク(6)の軸部(6
b)の先端に当接している。
As shown in Figures 1 and 2, behind the holding base (4) on the first board (1), there is an adjustment base (with an L-shaped right side) (
12) is supported so as to be slidable back and forth, and a protrusion (13) provided on the front surface of the adjustment table (12) is connected to the shaft portion (6) of the workpiece (6).
It is in contact with the tip of b).

調節台(12)の後端には、後方を向く調節螺杆(14
)の前端が回動自在に係合し、調節螺杆(14)は、第
1基板(1)の後端に立設した固定板(15)の螺孔(
図示省略)に螺合して支持され、固定板(15)の直後
に螺合した蝶ナツト(16)により固定されている。
At the rear end of the adjustment stand (12), there is an adjustment screw (14) facing rearward.
) is rotatably engaged with the adjusting screw (14), and the adjusting screw (14) is connected to the screw hole (
(not shown), and is fixed by a wing nut (16) screwed immediately after the fixing plate (15).

第1基板(1)の上面前部には、ワーク(6)と同軸を
なして後方を向く第1エヤーシリンダ(17)が、取付
板(18)をもって固着されている。第1エヤーシリン
ダ(17)の本体(17a )を貫通するピストンロラ
ド(17b)の後端は、ワーク(6)の傘部(6a)の
前面に当接し、ピストンロッド(17b)の前端には、
上方を向く第1当接板(19)が固着されている。
A first air cylinder (17) that is coaxial with the workpiece (6) and faces rearward is fixed to the upper front part of the first substrate (1) with a mounting plate (18). The rear end of the piston rod (17b) that passes through the main body (17a) of the first air cylinder (17) comes into contact with the front surface of the umbrella part (6a) of the workpiece (6), and the front end of the piston rod (17b) has a
A first abutment plate (19) facing upward is fixed.

(20)は、本体(21)と電磁センサー(22)より
なる第1測定器で、センサー(22)は上記取付板(1
8)の上部に、第1エヤーシリンダ(17)と平行に前
方に向けて固着され、ばね(図示省略)に付勢されて前
向突出する検知針(22a)の先端は、第1当接板(1
9)に常時圧接している。
(20) is a first measuring device consisting of a main body (21) and an electromagnetic sensor (22), and the sensor (22) is the mounting plate (1).
8), the tip of the sensing needle (22a) is fixed to the front in parallel with the first air cylinder (17) and protrudes forward under the force of a spring (not shown). Board (1
9) is constantly in pressure contact with.

第1測定器(20)のセンサー(22)は、ピストンロ
ッド(17b )の僅かな移動を、第1当接板(19)
を介して検知し、この移動量を1本体(21)に数値と
して表示する。
The sensor (22) of the first measuring device (20) detects the slight movement of the piston rod (17b) from the first contact plate (19).
The amount of movement is detected as a numerical value on one main body (21).

第1基板(1)の上面左部と右部には、互に同軸をなし
で対向する1対の第2エヤーシリンダ(23)(23)
が固着され、両ピストンロッド(23a) (23a)
の先端には、互いに平行をなす1対の圧接板(24)(
24)の上端が固着されている。
A pair of second air cylinders (23) (23) are located on the left and right sides of the top surface of the first board (1), facing each other without being coaxial.
are fixed, both piston rods (23a) (23a)
A pair of pressing plates (24) parallel to each other is attached to the tip of the
24) is fixed at the upper end.

面圧接板(24) (24)は、第1基板(1)に穿設
した窓孔(25)を遊通し、外面中央に横向突設した支
持片(24a) (24a)が第1基板(1)の上面に
、摺動自在に支持されている。
The surface pressure contact plate (24) (24) passes through a window hole (25) formed in the first substrate (1), and a support piece (24a) (24a) provided laterally protruding from the center of the outer surface is attached to the first substrate (24). 1) is slidably supported on the upper surface.

右方の圧接板(24)の下部には、外方より調節螺杆(
26)が、それに螺合する蝶ナツト(27)により、任
意の位置に固定しつるように螺挿され、かつその先端に
は、第2当接板(28)が固着されている。
At the bottom of the right pressure contact plate (24), there is an adjustment screw (
26) is screwed into the wing nut (27) so that it can be fixed in any position by means of a wing nut (27), and a second abutment plate (28) is fixed to the tip of the wing nut (27).

(29)は、上記第1測定器(20)と同様の5本体(
30)と電磁センサー(31)よりなる第28111定
器で、センサー(31)は左方の圧接板(24)の外面
下部に、上記調節螺杆(26)方向を向いて同軸をなす
ように固着されている。センサー(31)の検知針(3
1a)の先端は、圧接板(24)を遊嵌し、上記第2当
接板(28)に常時圧接している。
(29) has five main bodies (
30) and an electromagnetic sensor (31), the sensor (31) is fixed to the lower part of the outer surface of the left press plate (24) so as to be coaxial with the adjustment screw (26). has been done. The detection needle (3) of the sensor (31)
The tip of 1a) is loosely fitted with a pressure contact plate (24) and is always in pressure contact with the second contact plate (28).

第2測定器(29)のセンサー(31)は、両第2エヤ
ーシリンダ(23) (23)のピストンロッド(23
a) (23a)の僅かな移動を、面圧接板(24) 
(24)を介して、検知し、この移動量を、本体(30
)に数値として表示する。
The sensor (31) of the second measuring device (29) is connected to the piston rod (23) of both second air cylinders (23) (23).
a) Slight movement of (23a), surface pressure contact plate (24)
(24), and detects this movement amount through the main body (30).
) as a number.

次に、上述の装置によるワーク(6)の寸法精度測定手
順を記述する。
Next, a procedure for measuring the dimensional accuracy of the workpiece (6) using the above-mentioned apparatus will be described.

まず、上述の装置の全エヤーシリンダ(8)(17)(
23)を短縮させて、ワーク(6)の標準品を保持台(
4)に、適宜の手段で載置して、保持台(4)と第1枢
支具(7)と揺動シリンダ(8)と揺動板(9)と第2
枢支具(10)とローラ(11)よりなる保持装置(A
)に、ワーク(6)を、軸線方向には移動可能に、かつ
軸線と直角方向には移動不能として保持する。
First, all the air cylinders (8) (17) (
23) and hold the standard workpiece (6) on the holding stand (
4), the holding table (4), the first pivot (7), the swing cylinder (8), the swing plate (9), and the second
A holding device (A) consisting of a pivot (10) and a roller (11)
), the workpiece (6) is held movable in the axial direction but immovable in the direction perpendicular to the axis.

ついで、第1エヤーシリンダ(17)を伸長させれば、
そのピストンロッド(17a)がワーク(6)を左方に
押圧して、その軸部(6b)の先端が、調節台(12)
と突起(13)と調節螺杆(14)と固定板(15)と
蝶ナツト(16)よりなる位置決め装置(B)の突起(
13)に当接する。
Then, if the first air cylinder (17) is extended,
The piston rod (17a) presses the workpiece (6) to the left, and the tip of the shaft portion (6b) touches the adjustment table (12).
and the protrusion (B) of the positioning device (B) consisting of the protrusion (13), the adjusting screw (14), the fixing plate (15), and the wing nut (16).
13).

ついで、位置決め装置(B)の調節螺杆(14)を回転
させて、ワーク(6)の傘部(6a)を、上記圧接板(
24)の前後方向のほぼ中央に位置させた後、蝶ナツト
(16)を締めつけて、調節台(12)を第1鵡板(1
)に固定する。
Next, the adjusting screw (14) of the positioning device (B) is rotated to move the umbrella part (6a) of the workpiece (6) onto the pressure contact plate (
24), tighten the wing nut (16) and move the adjustment table (12) to the first position plate (1).
).

ついで、第1エヤーシリンダ(17)を伸長させた後、
両第2エヤーシリンダ(23)(23)を伸長させ、こ
の時の第1・第2両測定器(20) (29)の本体(
21)(30)の表示部(21a) (30a)に表示
される数値を、筒本体(21)(30)の0点設定つま
み(21b) (30b)を調節してOとする。
Then, after extending the first air cylinder (17),
Both the second air cylinders (23) (23) are extended, and the main bodies (29) of the first and second measuring instruments (20) (29) are
21) Set the value displayed on the display section (21a) (30a) of (30) to O by adjusting the zero point setting knob (21b) (30b) of the cylinder body (21) (30).

しかる後、位置決め装置(B)を固定したまま、第1・
第2両エヤーシリンダ(17) (23)を短縮させて
、ワーク(6)の標準品を取り外し、測定しようとする
ワーク(6)を保持袋ff1(A)に保持させて、再び
第1・第2両エヤーシリンダ(17) (23)を伸長
させれば、第1・第2両測定器(20) (29)の表
示部(21a) (30a)に、ワーク(6)の全長と
傘部(6a)の直径の寸法誤差が、数値として表示され
る。
After that, with the positioning device (B) fixed, the first
Shorten both the second air cylinders (17) and (23), remove the standard workpiece (6), hold the workpiece (6) to be measured in the holding bag ff1(A), and then use the first and second air cylinders again. When both the second air cylinders (17) and (23) are extended, the display sections (21a) and (30a) of both the first and second measuring instruments (20) and (29) will show the total length of the workpiece (6) and the umbrella. The dimensional error in the diameter of the portion (6a) is displayed as a numerical value.

この際、もし誤差が、第1・第2両測定器(20)(2
9)に予め設定した許容範囲内であれば、青ランプ(2
1c) (30c)が点灯し、誤差が上限または下限を
越していれば、赤ランプ(21d) (30d)または
赤ランプ(21e) (30e)が点灯するとともに、
ブザー(図示省略)が警告する。
At this time, if there is an error in both the first and second measuring instruments (20) (2
9), the blue lamp (2) is within the preset tolerance range.
1c) (30c) lights up, and if the error exceeds the upper or lower limit, the red lamp (21d) (30d) or red lamp (21e) (30e) lights up,
A buzzer (not shown) issues a warning.

上述の装置の各エヤーシリンダ(8)(17) (23
)の伸縮動作は、−たん標準ワーク(6)により、第1
・第2両測定器(20) (29)に0点設定した後は
、測定しようとするワーク(6)を保持台(4)に載置
すると同時に、自動的に順序正しく行なわせることがで
きる。
Each air cylinder (8) (17) (23) of the above-mentioned device
) can be expanded and contracted using the -tan standard workpiece (6).
- After setting the zero point on both second measuring instruments (20) and (29), the work to be measured (6) can be placed on the holding table (4) and the measurement can be performed automatically in the correct order. .

〔発明の効果〕〔Effect of the invention〕

本発明の装置によれば、従来面倒であったワークの全長
と傘部の直径の寸法精度の測定を、同時に自動的に行な
いうるので、ワークの生産能率が向上する。
According to the apparatus of the present invention, it is possible to simultaneously and automatically measure the dimensional accuracy of the total length of the workpiece and the diameter of the umbrella part, which has been troublesome in the past, so that the production efficiency of the workpiece is improved.

また本発明の装置は、保持装置の前後位置を調節しうる
ので、同一の装置により、寸法の異なる多種のワークの
精度を測定することができる。
Furthermore, since the device of the present invention can adjust the longitudinal position of the holding device, it is possible to measure the accuracy of various types of workpieces with different dimensions using the same device.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明装置の平面図、 第2図は、第1図のX−X線断面図、 第3図は、第1図のY−Y線断面図、 第4図は、第1図のZ−2線断面図である。 (A)保持装置       (B)位置決め装置(1
)第1基板       (2)第2基板(3)連結板
        (4)保持台(4a)立上片 (6)ワーク (6b)軸部 (8)揺動エヤーシリンダ (9)揺動板 (11)抑圧ローラ (13)突起 (15)固定板 (17)第1エヤーシリンダ (17b)ピストンロッド (19)第1当接板 (21)本体 (21b)つまみ (22)センサー (23)第2エヤーシリンダ (24)圧接板 (25)窓孔 (27)蝶ナツト (29)第2測定器 (30a)表示部 (5)7字溝 (6a)傘部 (7)第1枢支具 (8a)ピストンロッド (10)第2枢支具 (12)調節台 (14)調節螺杆 (16)蝶ナツト (17a)本体 (18)取付板 (20)第1測定器 (21a)表示部 (21c) (21d) (21e)ランプ(22a)
検知針 (23a)ピストンロッド (24a)支持片 (26)調節螺杆 (28)第2当接板 (30)本体 (30b)つまみ (30c) (30d) (30e)ランプ(31a)
検知針 (31)センサー
1 is a plan view of the device of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 1, FIG. 3 is a sectional view taken along the Y-Y line in FIG. 1, and FIG. FIG. 2 is a sectional view taken along line Z-2 in FIG. 1; (A) Holding device (B) Positioning device (1
) First board (2) Second board (3) Connection plate (4) Holding stand (4a) Upright piece (6) Workpiece (6b) Shaft (8) Swinging air cylinder (9) Swinging plate (11 ) Suppressing roller (13) Protrusion (15) Fixing plate (17) First air cylinder (17b) Piston rod (19) First contact plate (21) Main body (21b) Knob (22) Sensor (23) Second air cylinder Cylinder (24) Pressure plate (25) Window hole (27) Wing nut (29) Second measuring device (30a) Display section (5) Figure 7 groove (6a) Umbrella section (7) First pivot (8a) Piston rod (10) Second pivot (12) Adjustment stand (14) Adjustment screw (16) Wing nut (17a) Main body (18) Mounting plate (20) First measuring device (21a) Display part (21c) ( 21d) (21e) Lamp (22a)
Detection needle (23a) Piston rod (24a) Support piece (26) Adjustment screw (28) Second contact plate (30) Main body (30b) Knob (30c) (30d) (30e) Lamp (31a)
Detection needle (31) sensor

Claims (1)

【特許請求の範囲】 エンジンバルブを、その軸線方向に移動可能に、かつそ
れと直角方向に移動不能に保持する保持装置と、 エンジンバルブの軸線方向に移動し、かつその軸部の先
端に当接して、エンジンバルブの軸線方向の位置を調節
しうる位置決め装置と、 エンジンバルブと同軸をなし、かつ伸長させたピストン
ロッドをもってエンジンバルブの傘部を押圧しうる第1
エヤーシリンダと、 第1エヤーシリンダのピストンロッドに固着した第1当
接板と、 ばねに付勢されて不動のセンサーより突出する検知針の
先端が常時第1当接板に当接することにより、第1エヤ
ーシリンダのピストンロッドの微少の移動量を検知して
表示する第1測定器と、エンジンバルブの傘部の両側方
において、互に同軸をなして対向する1対の第2エヤー
シリンダと、 両第2エヤーシリンダのピストンロッドに固着され、各
ピストンロッドの伸長により、傘部の周縁に圧接する1
対の圧接板と、 第2エヤーシリンダと平行に、一方の圧接板に外方より
任意の位置で固定しうるように螺挿され、かつ先端に、
第2当接板が固着された調節螺杆と、調節螺杆と同軸と
して、他方の圧接板の外面に固着されたセンサーより、
ばねの付勢により突出して、同圧接板を貫通する検知針
の先端が、常時調節螺杆の第2当接板に当接して、第2
エヤーシリンダのピストンロッドの微少の移動量を検知
して表示する第2測定器 とを具備してなるエンジンバルブの全長と傘部の直径の
寸法精度同時測定装置。
[Scope of Claims] A holding device that holds an engine valve movably in the axial direction of the engine valve and immovable in a direction perpendicular to the engine valve; a positioning device that can adjust the position of the engine valve in the axial direction; and a first piston rod that is coaxial with the engine valve and that can press the umbrella portion of the engine valve with an extended piston rod.
The air cylinder, the first abutment plate fixed to the piston rod of the first air cylinder, and the tip of the detection needle that is biased by the spring and protrudes from the immovable sensor are always in contact with the first abutment plate. a first measuring device that detects and displays minute amounts of movement of the piston rod of the first air cylinder; and a pair of second air cylinders coaxially facing each other on both sides of the engine valve umbrella. , 1 which is fixed to the piston rods of both second air cylinders and presses against the periphery of the umbrella part by the extension of each piston rod.
A pair of pressure contact plates, parallel to the second air cylinder, screwed into one pressure contact plate from the outside so that it can be fixed at any position, and at the tip;
From the adjustment screw to which the second contact plate is fixed, and the sensor fixed to the outer surface of the other press plate coaxially with the adjustment screw,
The tip of the detection needle that protrudes under the bias of the spring and passes through the pressure contact plate comes into contact with the second contact plate of the constant adjustment screw rod.
A device for simultaneously measuring the dimensional accuracy of the overall length of an engine valve and the diameter of a cap portion, comprising a second measuring device that detects and displays minute amounts of movement of a piston rod of an air cylinder.
JP24432888A 1988-09-30 1988-09-30 Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof Pending JPH0293301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24432888A JPH0293301A (en) 1988-09-30 1988-09-30 Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24432888A JPH0293301A (en) 1988-09-30 1988-09-30 Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof

Publications (1)

Publication Number Publication Date
JPH0293301A true JPH0293301A (en) 1990-04-04

Family

ID=17117077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24432888A Pending JPH0293301A (en) 1988-09-30 1988-09-30 Apparatus for simultaneously measuring full length of engine valve and diameter of cap portion thereof

Country Status (1)

Country Link
JP (1) JPH0293301A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008121247A (en) * 2006-11-10 2008-05-29 East Japan Railway Co Anti-derailment guard rail mounting device and derailment prevention guard rail handling method
KR100916336B1 (en) * 2007-12-10 2009-09-11 안전공업주식회사 Diameter measuring device of engine valve for internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008121247A (en) * 2006-11-10 2008-05-29 East Japan Railway Co Anti-derailment guard rail mounting device and derailment prevention guard rail handling method
KR100916336B1 (en) * 2007-12-10 2009-09-11 안전공업주식회사 Diameter measuring device of engine valve for internal combustion engine

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