JPH08100868A - Mounting method for ball valve in movable valve element of solenoid valve - Google Patents
Mounting method for ball valve in movable valve element of solenoid valveInfo
- Publication number
- JPH08100868A JPH08100868A JP25939894A JP25939894A JPH08100868A JP H08100868 A JPH08100868 A JP H08100868A JP 25939894 A JP25939894 A JP 25939894A JP 25939894 A JP25939894 A JP 25939894A JP H08100868 A JPH08100868 A JP H08100868A
- Authority
- JP
- Japan
- Prior art keywords
- ball valve
- valve
- movable
- press
- jig
- 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
- Magnetically Actuated Valves (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はコイルへ通電することに
よって磁気回路に生起する磁力により可動弁体を動作し
て流路の切換え制御を行なう電磁弁に関し、そのうち流
路の開閉を行なうボール弁の可動弁体への取着方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve for controlling passage switching by operating a movable valve body by a magnetic force generated in a magnetic circuit when a coil is energized. To a movable valve body.
【0002】[0002]
【従来の技術】電磁弁について図3、図4について説明
する。1は上端が開口した有底筒状のハウジングであ
り、底部1Aの中心には上方に向かって第2固定コア2
が立設されるとともに第2固定コア2の外周には環状凹
部3が形成され、この環状凹部の上部は係止段部1Bを
介してその直径が拡大され、上端に向かって開口する。
尚、1Cは、ハウジング1の上端近傍に形成した第2係
止段部であり、更に環状凹部3には第3流路4が開口す
る。そして、第2固定コア2の上端2Aには第2流路5
に連なる第2シート孔6が開口するもので、この第2流
路5はハウジング1より外部に向かって開口する。7は
円筒形状をなすコイルボビンであってその外周にはコイ
ル8が巻回されるもので、ハウジング1の係止段部1B
上に挿入配置される。9は円柱形状をなす第1固定コア
であり、下端9Aの中心には第1流路10に連なる第1
シート孔11が形成されるとともに上端にはその径が拡
大された取付け鍔部12が形成される。2. Description of the Related Art A solenoid valve will be described with reference to FIGS. Reference numeral 1 denotes a bottomed cylindrical housing having an open upper end, and a second fixed core 2 is formed in the center of the bottom portion 1A and extends upward.
And a ring-shaped recess 3 is formed on the outer periphery of the second fixed core 2, and the diameter of the upper part of the ring-shaped recess is enlarged through the locking step 1B and opens toward the upper end.
1C is a second locking step formed near the upper end of the housing 1, and a third flow path 4 opens in the annular recess 3. The second flow path 5 is formed in the upper end 2A of the second fixed core 2.
The second sheet hole 6 that is continuous with is opened, and the second flow path 5 is opened from the housing 1 toward the outside. Reference numeral 7 is a cylindrical coil bobbin around which a coil 8 is wound, and a locking step portion 1B of the housing 1
Placed on top. Reference numeral 9 denotes a first fixed core having a columnar shape, and the first fixed core 9 connected to the first flow path 10 is provided at the center of the lower end 9A.
A seat hole 11 is formed and a mounting flange portion 12 having an enlarged diameter is formed at the upper end.
【0003】13は可動弁体であって以下によって形成
される。すなわち、可動弁体13は底部14と底部14
の外周から下方に向かって延びその下端が開口する筒状
部15とよりなり、底部14の中心にはボール弁圧入孔
16が貫通して穿設され、このボール弁圧入孔16内に
ボール弁17が圧入され、底部14の下面14Aより下
方に向けてボール弁17の下方弁部17Aが突出し、底
部14の上面14Bより上方に向けてボール弁17の上
方弁部17Bが突出する。そして、この可動弁体13の
筒状部15の内周15Aが第2固定コア2の外周にその
長手方向に移動自在に配置されるとともに底部14が第
1固定コア9の下端9Aと第2固定コア2の上端2Aと
の間の間隙S内に配置され、さらに底部14の上面14
Bと第1固定コア9との間には可動弁体押圧スプリング
18が縮設される。(尚、可動弁体13は図4に示され
る。)Reference numeral 13 denotes a movable valve body, which is formed by the following. That is, the movable valve body 13 includes the bottom portion 14 and the bottom portion 14
The ball valve press-fitting hole 16 is formed at the center of the bottom part 14 by penetrating the bottom of the bottom part 14 and extending downward from the outer periphery of the ball valve press-fitting hole 16. 17, the lower valve portion 17A of the ball valve 17 projects downward from the lower surface 14A of the bottom portion 14, and the upper valve portion 17B of the ball valve 17 projects upward from the upper surface 14B of the bottom portion 14. The inner periphery 15A of the tubular portion 15 of the movable valve body 13 is arranged on the outer periphery of the second fixed core 2 so as to be movable in the longitudinal direction thereof, and the bottom portion 14 is provided with the lower end 9A of the first fixed core 9 and the second fixed core 9. It is arranged in a gap S between the upper end 2A of the fixed core 2 and the upper surface 14 of the bottom portion 14.
A movable valve body pressing spring 18 is contracted between B and the first fixed core 9. (The movable valve body 13 is shown in FIG. 4.)
【0004】而して、コイル8への非通電時にあっては
可動弁体13は可動弁体押圧スプリング18のバネ力に
よって下方に押圧され、ボール弁17の下方弁部17A
が第2シート孔6を閉塞するとともに上方弁部17Bが
第1シート孔11を開放し、一方、コイル8への通電時
において、可動弁体13は可動弁体押圧スプリング18
のバネ力に抗して第1固定コア9に吸引されて上動し、
上方弁部17Bが第1シート孔11を閉塞し、下方弁部
17Aが第2シート孔6を開放する。Therefore, when the coil 8 is not energized, the movable valve body 13 is pressed downward by the spring force of the movable valve body pressing spring 18, and the lower valve portion 17A of the ball valve 17 is pressed.
Closes the second seat hole 6 and the upper valve portion 17B opens the first seat hole 11, while the movable valve body 13 moves the movable valve body pressing spring 18 when the coil 8 is energized.
Against the spring force of the first fixed core 9 to move upwards,
The upper valve portion 17B closes the first seat hole 11, and the lower valve portion 17A opens the second seat hole 6.
【0005】そして、かかる電磁装置において、可動弁
体13におけるボール弁17は以下の如く可動弁体13
の底部14のボール弁圧入孔16内に取着される。図
5、図6によって説明する。かかる取着は上下方向に移
動可能な上側治具19と固定的に配置される下側治具2
0とによって行なわれる。上側治具19は、柱状部19
Aと、柱状部19Aの下面19Bから上方に向かい底部
19Cを有する第1凹部19Dと、よりなり下面19B
と底部19Cとの深さAは、可動弁体13の底部14の
上面14Bからのボール弁17の上方弁部17Bの突出
高さに相当する。下側治具20は、柱状部20Aと、柱
状部20Aの上面20Bから下方に向かい底部20Cを
有する第2凹部20Dと、よりなり上面20Bと底部2
0Cとの深さBは、可動弁体13の底部14の下面14
Aからのボール弁17の下方弁部17Aの突出高さに相
当する。In such an electromagnetic device, the ball valve 17 in the movable valve body 13 has the movable valve body 13 as follows.
It is attached in the ball valve press-fitting hole 16 of the bottom portion 14 of the. This will be described with reference to FIGS. Such attachment includes an upper jig 19 movable vertically and a lower jig 2 fixedly arranged.
0 and. The upper jig 19 includes the columnar portion 19
A lower surface 19B, which is composed of A and a first concave portion 19D that has a bottom portion 19C that extends upward from the lower surface 19B of the columnar portion 19A.
The depth A between the bottom portion 19C and the bottom portion 19C corresponds to the protruding height of the upper valve portion 17B of the ball valve 17 from the upper surface 14B of the bottom portion 14 of the movable valve body 13. The lower jig 20 includes a columnar portion 20A, a second recess 20D having a bottom portion 20C facing downward from the upper surface 20B of the columnar portion 20A, and the upper surface 20B and the bottom portion 2B.
The depth B with 0C is the lower surface 14 of the bottom portion 14 of the movable valve body 13.
This corresponds to the protruding height of the lower valve portion 17A of the ball valve 17 from A.
【0006】可動弁体13の底部14にボール弁17は
以下のように取着される。まず、下側治具20に可動弁
体13を配置するもので、可動弁体13の内周15Aは
柱状部20Aの外周に配置され、底部14の下面14A
は柱状部20Aの上面20B上に当接して配置され、ボ
ール弁17は底部14の上面14Bに開口するボール弁
17の直径Cより小径をなすボール弁圧入孔16に載置
される。この状態でボール弁17は未だボール弁圧入孔
16内に圧入されていない。一方、かかる状態において
上側治具19はボール弁17より上方位置にある。この
第1状態は図5に示される。The ball valve 17 is attached to the bottom portion 14 of the movable valve body 13 as follows. First, the movable valve body 13 is arranged on the lower jig 20, the inner circumference 15A of the movable valve body 13 is arranged on the outer circumference of the columnar portion 20A, and the lower surface 14A of the bottom portion 14 is arranged.
Is arranged in contact with the upper surface 20B of the columnar portion 20A, and the ball valve 17 is placed in the ball valve press-fitting hole 16 having a diameter smaller than the diameter C of the ball valve 17 opening to the upper surface 14B of the bottom portion 14. In this state, the ball valve 17 has not yet been pressed into the ball valve press-fitting hole 16. On the other hand, in this state, the upper jig 19 is located above the ball valve 17. This first state is shown in FIG.
【0007】次に前記状態から上側治具19を下方向へ
押圧移動するもので、これによると、上側治具19の下
面19Bが可動弁体13の底部14の上面14Bに当接
し、下側治具20の上面20Bが可動弁体13の底部1
4の下面14Aに当接した状態で上側治具19の下方向
移動が停止する。かかる上側治具19の前記動作による
と、ボール弁17の上方弁部17Bは上側治具19の第
1凹部19Dの底部19Cに当接して下方へ押圧されて
ボール弁圧入孔16内へ圧入され、下方弁部17Aがボ
ール弁圧入孔16を貫通し、下側治具20の第2凹部2
0Bの底部20Cに下方弁部17Aが当接した状態にお
いてボール弁17のボール弁圧入孔16内への圧入が終
了する。そして、かかる状態において、底部14の上面
14Bから上方に向かって突出する上方弁部17Bの突
出高さは第1凹部19Dの深さAによって決定され、一
方底部14の下面14Aから下方に向かって突出する下
方弁部17Aの突出高さは第2凹部20Dの深さBによ
って決定される。この状態は図6に示される。Next, the upper jig 19 is moved downward from the above state. According to this, the lower surface 19B of the upper jig 19 abuts the upper surface 14B of the bottom portion 14 of the movable valve body 13, and The upper surface 20B of the jig 20 is the bottom portion 1 of the movable valve body 13.
The lower movement of the upper jig 19 is stopped while the lower jig 14 is in contact with the lower surface 14A of No. 4. According to the above operation of the upper jig 19, the upper valve portion 17B of the ball valve 17 comes into contact with the bottom portion 19C of the first recess 19D of the upper jig 19 and is pressed downward to be press-fitted into the ball valve press-fitting hole 16. , The lower valve portion 17A penetrates the ball valve press-fitting hole 16, and the second recess 2 of the lower jig 20.
With the lower valve portion 17A in contact with the bottom portion 20C of 0B, the press-fitting of the ball valve 17 into the ball valve press-fitting hole 16 is completed. Then, in such a state, the protruding height of the upper valve portion 17B protruding upward from the upper surface 14B of the bottom portion 14 is determined by the depth A of the first recess 19D, while the protruding height from the lower surface 14A of the bottom portion 14 downwards. The protruding height of the protruding lower valve portion 17A is determined by the depth B of the second recess 20D. This state is shown in FIG.
【0008】[0008]
【発明が解決しようとする課題】かかる従来のボール弁
の可動弁体への取着方法によると以下の課題を有する。
ボール弁がボール弁圧入孔内に圧入されて位置決めされ
る際、ボール弁の上方弁部が上側治具の第1凹部の底部
に当接し、ボール弁の下方弁部が下側治具の第2凹部の
底部に当接した状態にて挟持され、ボール弁に対して大
きな機械的衝撃力が加わるもので、これによると、特に
シート孔に接して流路開閉機能を有する弁部に傷をつけ
る恐れがありシート性を阻害する恐れがある。特にボー
ル弁の直径Cと、上側治具の第1凹部の深さAと、可動
弁体の底部の厚さDと、下側治具の第2凹部の深さBと
の関係においてC>(A+D+B)となるとその機械的
衝撃力は著しく過大となるもので弁部には大きな変形が
生ずる恐れがある。又、ボール弁はボール弁圧入孔内に
単に圧入取着されるもので、これによると、ボール弁の
ボール弁圧入孔内への圧入荷重を上げてボール弁のボー
ル弁圧入孔に対する保持力を大きく保持する必要があ
り、この圧入荷重を大きくすることは特に上側治具の第
1凹部の底部とボール弁の上方弁部との当接面に過大な
荷重が作用し、上方弁部に傷を生ずる恐れがあって好ま
しいものでない。The conventional method of attaching the ball valve to the movable valve body has the following problems.
When the ball valve is pressed into the ball valve press-fitting hole and positioned, the upper valve portion of the ball valve abuts the bottom of the first recess of the upper jig, and the lower valve portion of the ball valve moves to the lower jig of the lower jig. (2) The ball valve is sandwiched in contact with the bottom of the recess, and a large mechanical impact force is applied to the ball valve. According to this, the valve section having the flow path opening / closing function is particularly scratched in contact with the seat hole. There is a risk that it may be attached and the sheet properties may be impaired. In particular, in relation to the diameter C of the ball valve, the depth A of the first recess of the upper jig, the thickness D of the bottom of the movable valve body, and the depth B of the second recess of the lower jig, C> When it becomes (A + D + B), the mechanical impact force becomes remarkably excessive and the valve portion may be largely deformed. In addition, the ball valve is simply press-fitted and attached in the ball valve press-fitting hole. According to this, the press-fitting load into the ball valve press-fitting hole of the ball valve is increased to increase the holding force for the ball valve press-fitting hole of the ball valve. It is necessary to keep a large amount of pressure, and increasing the press-fitting load in particular causes an excessive load on the contact surface between the bottom of the first recess of the upper jig and the upper valve of the ball valve, causing damage to the upper valve. It is not preferable because it may occur.
【0009】本発明はかかる課題に鑑み成されたもの
で、ボール弁の弁部に傷、変形を与えることがなく、し
かもボール弁圧入孔に対し充分なる保持力をもってボー
ル弁を取着することのできる可動弁体におけるボール弁
の取着方法を提供することにある。The present invention has been made in view of the above problems, and it is possible to mount the ball valve with sufficient holding force for the ball valve press-fitting hole without damaging or deforming the valve portion of the ball valve. (EN) Provided is a method of attaching a ball valve to a movable valve body, which can be carried out.
【0010】[0010]
【課題を解決するための手段】前記目的は、下端に、第
1流路に連なる第1シート孔が開口するとともにコイル
内に上方より挿入配置される第1固定コアと、上端に、
第2流路に連なる第2シート孔が開口するとともにコイ
ル内に下方より挿入され、前記上端が第1固定コアの下
端に間隙をもって同芯に対向配置される第2固定コア
と、コイルの外周を囲繞して配置されるとともに第1固
定コアと第2固定コアとを磁気的に結合する筒状のハウ
ジングと、底部と、底部に連なり下端が開口した筒状部
とよりなる有底筒状をなし、その筒状部は、第1固定コ
ア又は第2固定コアの何れか一方の外周に、その長手方
向において移動自在に案内配置されるとともに底部に穿
設されるボール弁圧入孔内に圧入されるボール弁が第1
シート孔と第2シート孔との間に配置され、底部の上面
より突出するボール弁の上方弁部が第1シート孔を開又
は閉とするとともに底部の下面より突出するボール弁の
下方弁部が第2シート孔を閉又は開とする可動弁体と、
可動弁体の筒状部が移動自在に配置される一方の固定コ
アの一方のシート孔に可動弁体に取着されたボール弁を
弾性的に付勢する可動弁押圧スプリングとを備えた電磁
弁において、下側治具は、可動弁体の筒状部の内周内に
挿入され、その上端面に、可動弁体の底部に穿設された
ボール弁圧入孔の直径より大径の直径を有する下側カシ
メ突部を上方に向けて突出して形成した柱状部と、柱状
部の中心に配置され、上方向への移動が係止段部によっ
て制限されるとともにスプリングにて係止段部に向けて
弾性的に付勢され、その上端面が柱状部の上端面より下
方位置に開口して配置された位置決め係止部材とにより
形成され、上側治具は、柱状部と、柱状部の下端面に形
成され、ボール弁圧入孔の直径より大径の直径を有し、
下方に向けて突出して形成された上側カシメ突部と、上
側カシメ突部の内方にあって下端面より上方位置に形成
され、ボール弁に当接することのない深さを有する凹部
とにより形成され、下側治具の柱状部に可動弁体の筒状
部を挿入するとともに下側カシメ突部上に可動弁体の底
部の下面を当接して配置する第1工程と、可動弁体の底
部のボール弁圧入孔内にボール弁を圧入するとともにボ
ール弁の下方弁部を位置決め係止部材の上端面に当接
し、底部にボール弁を位置決め配置する第2工程と、上
側治具を可動弁体の底部を介して下側治具に圧接し、下
側治具の上端面が底部の下面に当接するとともに下側カ
シメ突部がボール弁圧入孔の下方開口端の外周近傍をボ
ール弁に向けて内方へカシメ、上側治具の下端面が底部
の上面に当接するとともに上側カシメ突部がボール弁圧
入孔の上方開口端の外周近傍をボール弁に向けて内方へ
カシメる第3工程とにより達成される。The above object is to provide a first fixed core having a first sheet hole connected to the first flow path at the lower end and inserted from above into the coil, and at the upper end,
A second fixed core having a second sheet hole connected to the second flow path and being inserted into the coil from below, and the upper end of which is concentrically opposed to the lower end of the first fixed core and the outer circumference of the coil. A bottomed tubular shape that includes a tubular housing that surrounds and that magnetically couples the first fixed core and the second fixed core, a bottom portion, and a tubular portion that is connected to the bottom portion and has a lower end opened The cylindrical portion is provided on the outer periphery of either the first fixed core or the second fixed core so as to be guided so as to be movable in the longitudinal direction thereof, and inside the ball valve press-fitting hole formed at the bottom. First press-fit ball valve
An upper valve portion of the ball valve, which is disposed between the seat hole and the second seat hole, and which projects from the upper surface of the bottom portion opens or closes the first seat hole, and a lower valve portion of the ball valve, which projects from the lower surface of the bottom portion. A movable valve body that closes or opens the second seat hole,
Electromagnetic equipped with a movable valve pressing spring that elastically biases a ball valve attached to the movable valve body in one seat hole of one fixed core in which the tubular portion of the movable valve body is movably arranged. In the valve, the lower jig is inserted into the inner circumference of the tubular part of the movable valve body, and has a diameter larger than the diameter of the ball valve press-fitting hole formed in the bottom part of the movable valve body at the upper end surface thereof. A columnar portion formed by protruding a lower caulking protrusion having upwards, and a columnar portion arranged at the center of the columnar portion, the upward movement is restricted by the locking step portion, and a locking step portion is formed by a spring. Is formed by a positioning locking member that is elastically urged toward and has its upper end surface opened and positioned below the upper end surface of the columnar portion. It is formed on the lower end surface and has a diameter larger than the diameter of the ball valve press-fitting hole,
Formed by an upper caulking protrusion that projects downward and a recess that is located inside the upper caulking protrusion and above the lower end surface and that has a depth that does not contact the ball valve. The first step of inserting the tubular portion of the movable valve element into the columnar portion of the lower jig and placing the lower surface of the bottom portion of the movable valve element in contact with the lower caulking protrusion, and The second step of pressing the ball valve into the ball valve press-fitting hole at the bottom and bringing the lower valve portion of the ball valve into contact with the upper end surface of the positioning locking member to position the ball valve at the bottom and the upper jig are movable. The lower jig is pressed into contact with the lower jig through the bottom of the valve body, the upper end surface of the lower jig abuts the lower surface of the bottom, and the lower crimp protrusion is located near the outer circumference of the lower opening end of the ball valve press-fitting hole. When the lower end surface of the upper jig contacts the upper surface of the bottom, Moni upper caulking projection is achieved by a third step caulking the outer periphery of the upper opening end of the ball valve fitting hole inwardly toward the ball valve.
【0011】[0011]
【実施例】ベース30上に固定的に配置される下側治具
31は以下よりなる。32はベース30に当接する基部
33より上方に向かって突起して形成された円柱形状を
なす柱状部であり、柱状部32の上端面34には下側カ
シメ突部35が上方に向かってX突出して形成される。
この下側カシメ突部35は例えば環状をなし、その内径
Eは、可動弁体13の底部14に穿設せるボール弁圧入
孔16の直径Fより大なる直径を有し下側カシメ突部3
5の内方部分には上端面34より下方に向かう凹部35
Aが形成される。尚、前記ボール弁圧入孔16の直径F
はボール弁17の直径Cよりわずかに小径とするもの
で、ボール弁17を軽荷重をもって(例えば手で挿入で
きる)ボール弁圧入孔16内へ挿圧入でき、しかもボー
ル弁17が少なくとも自重でボール弁圧入孔16から脱
出することのない保持力を有する。又、下側カシメ突部
35の形状は前述した環状であっても、あるいは120
度間隙の如く3点あるいは多点の突部であってもよい。EXAMPLE A lower jig 31 fixedly arranged on a base 30 is composed of: Reference numeral 32 denotes a columnar portion having a columnar shape formed by projecting upward from a base portion 33 that abuts on the base 30, and a lower caulking protrusion 35 is provided on an upper end surface 34 of the columnar portion 32 in an upward direction X. It is formed to project.
The lower caulking protrusion 35 has, for example, an annular shape, and the inner diameter E thereof is larger than the diameter F of the ball valve press-fitting hole 16 formed in the bottom portion 14 of the movable valve body 13, and the lower caulking protrusion 3 is formed.
The inner portion of 5 has a recess 35 that extends downward from the upper end surface 34.
A is formed. The diameter F of the ball valve press-fitting hole 16 is
Is a diameter slightly smaller than the diameter C of the ball valve 17, so that the ball valve 17 can be press-fitted into the ball valve press-fitting hole 16 with a light load (for example, can be manually inserted), and the ball valve 17 is at least loaded by its own weight. It has a holding force that does not escape from the valve press-fitting hole 16. Further, the shape of the lower caulking protrusion 35 may be the above-mentioned annular shape, or 120
It may be a projection having three points or multiple points such as a gap.
【0012】更に、柱状部32の長手軸心線上には、係
止部材案内孔36が穿設されるもので、係止部材案内孔
36の上部は係止段部37を介して下側カシメ突部35
の内方の凹部35A内に貫通して開口する。そして、こ
の係止部材案内孔36内には位置決め係止部材38が配
置される。この位置決め係止部材38は、係止部材案内
孔36の係止段部37に当接する係止鍔部38Aと、係
止鍔部38Aより更に上方に向かい上端面38Bを有す
る係止部38Cとよりなり、係止鍔部38Aと下方のネ
ジプラグ39との間にスプリング40が縮設される。す
なわち、係止部材案内孔36内に配置される位置決め係
止部材38は、スプリング40によって上方に向かって
弾性的に付勢され、係止鍔部38Aが係止段部37に当
接してその上方移動が停止され、係止部38Cの上端面
38Bが凹部35A内に開口する。そして、かかる状態
において、下側カシメ突部35の上端面35Bと位置決
め係止部材38の係止部38Cの上端面38Bとの距離
Gは、可動弁体13の底部14の下面14Aから突出す
るボール弁17の下方弁部17Aの所望の突出寸法に相
当する深さに設定される。Further, a locking member guide hole 36 is formed on the longitudinal axis of the columnar portion 32, and an upper portion of the locking member guide hole 36 is caulked at a lower side through a locking step portion 37. Projection 35
And penetrates and opens in the concave portion 35A on the inside. Then, a positioning locking member 38 is arranged in the locking member guide hole 36. The positioning locking member 38 includes a locking brim portion 38A that abuts the locking step portion 37 of the locking member guide hole 36, and a locking portion 38C that has an upper end surface 38B that extends further upward from the locking brim portion 38A. The spring 40 is contracted between the locking collar portion 38A and the lower screw plug 39. That is, the positioning locking member 38 arranged in the locking member guide hole 36 is elastically biased upward by the spring 40, and the locking brim portion 38A abuts on the locking step portion 37, and The upward movement is stopped, and the upper end surface 38B of the locking portion 38C opens in the recess 35A. In this state, the distance G between the upper end surface 35B of the lower caulking protrusion 35 and the upper end surface 38B of the locking portion 38C of the positioning locking member 38 projects from the lower surface 14A of the bottom portion 14 of the movable valve body 13. The depth is set to correspond to the desired protrusion size of the lower valve portion 17A of the ball valve 17.
【0013】長手方向に移動可能に配置される上側治具
41は以下よりなる。42は円柱状をなす柱状部であ
り、その下端面43には下方に向けて例えば環状の上側
カシメ突部44がY突出して形成され、その内径Hはボ
ール弁圧入孔16の直径Fより大なる直径を有し、上側
カシメ突部44の内方部分には、下端面43より上方に
向かう凹部45が形成されるもので、この凹部45は上
側治具41のいかなる位置状態においてもボール弁17
に当接しない。The upper jig 41 movably arranged in the longitudinal direction is composed of the following. Reference numeral 42 denotes a columnar portion having a cylindrical shape, and a lower end surface 43 thereof is formed with, for example, an annular upper crimping protrusion 44 protruding downward in a Y direction, and the inner diameter H thereof is larger than the diameter F of the ball valve press-fitting hole 16. Has a diameter of 5 mm, and a concave portion 45 that extends upward from the lower end surface 43 is formed in the inner portion of the upper crimping protrusion portion 44. The concave portion 45 is a ball valve in any position of the upper jig 41. 17
Does not come into contact with.
【0014】そして、可動弁体13に対するボール弁1
7の取着は以下によって行なわれる。まず、下側治具3
1の柱状部32の外周に可動弁体13の筒状部15の内
周15Aを挿入配置し、可動弁体13の底部14の下面
14Aを下側治具31の下側カシメ突部35上に配置す
る。このとき、下側カシメ突部35はボール弁圧入孔1
6の下方開口端近傍の外周に配置される。この工程は下
側治具31に可動弁体13を配置する第1工程である。The ball valve 1 for the movable valve body 13
Attachment of 7 is done by: First, the lower jig 3
The inner periphery 15A of the tubular portion 15 of the movable valve body 13 is inserted and arranged on the outer periphery of the columnar portion 32 of No. 1, and the lower surface 14A of the bottom portion 14 of the movable valve body 13 is placed on the lower caulking protrusion 35 of the lower jig 31. To place. At this time, the lower caulking protrusion 35 is attached to the ball valve press-fitting hole 1
6 is disposed on the outer periphery near the lower open end. This step is the first step of disposing the movable valve body 13 on the lower jig 31.
【0015】次にボール弁17をボール弁圧入孔16内
へ圧入(押入)する。このとき、ボール弁圧入孔16の
直径Fをボール弁17の直径Cよりわずかに小径とした
ので、ボール弁17は手で押すか、わずかな荷重によっ
て圧入(押圧)することによりボール弁圧入孔16内へ
軽圧入される。そして、ボール弁17の下方弁部17A
が、ボール弁圧入孔16内を通過して底部14の下面1
4Aより下方に突出し、位置決め係止部材38の係止部
38Cの上端面38Bに当接することによって下方移動
に対する抵抗を受けるや即座にボール弁17に対する下
方向への圧入(押圧)作業を中止する。以上によると、
ボール弁17の下方弁部17Aの底部14の下面14A
に対する突出寸法は下側カシメ突部35の上端面35B
と係止部38Cの上端面38Bとの距離Gに相当して決
定され、ボール弁17がボール弁圧入孔16内に保持さ
れる。(ボール弁17はボール弁圧入孔16より自力を
もって脱出することはない)尚、スプリング40のバネ
力は、かかるボール弁17のボール弁圧入孔16内への
圧入(押圧)荷重より強く設定される。この工程は、ボ
ール弁17を可動弁体13に軽圧入する第2工程であっ
て図1に示される。Next, the ball valve 17 is pressed (pressed) into the ball valve press-fitting hole 16. At this time, since the diameter F of the ball valve press-fitting hole 16 is made slightly smaller than the diameter C of the ball valve 17, the ball valve 17 can be pushed by hand or by press-fitting (pressing) with a slight load. Lightly press-fitted into 16. Then, the lower valve portion 17A of the ball valve 17
Is passed through the ball valve press-fitting hole 16 and passes through the bottom surface 1 of the bottom portion 14.
4A below, and when it receives resistance to the downward movement by coming into contact with the upper end surface 38B of the locking portion 38C of the positioning locking member 38, the downward press-fitting (pressing) work on the ball valve 17 is immediately stopped. . According to the above,
Lower surface 14A of bottom portion 14 of lower valve portion 17A of ball valve 17
Is the upper end surface 35B of the lower caulking protrusion 35.
Is determined corresponding to the distance G between the upper end surface 38B of the locking portion 38C and the upper end surface 38B, and the ball valve 17 is held in the ball valve press-fitting hole 16. (The ball valve 17 does not come out of the ball valve press-fitting hole 16 by itself.) The spring force of the spring 40 is set stronger than the press-fitting (pressing) load of the ball valve 17 into the ball valve press-fitting hole 16. It This step is a second step of lightly press-fitting the ball valve 17 into the movable valve body 13 and is shown in FIG.
【0016】次に上側治具41を強い押圧力をもって下
方へ移動させる。これによると、上側治具41の下端面
43が可動弁体13の底部14の上面14Bに当接した
状態で上側治具41の下方移動が停止され、このとき上
側カシメ突部44は上側カシメ突部44の突出寸法Yに
相当して底部14の上面14B内に喰い込み、これによ
るとボール弁圧入孔16の底部14の上面に開口する上
方開口端の外周近傍をボール弁17に向かってカシメら
れる。一方、下側治具31にあっては、上側治具41の
下方向の移動によって柱状部32の上端面34が可動弁
体13の底部14の下面14Aに向けて押圧されるもの
で、下側カシメ突部35がその突出寸法Xに相当して底
部14内に喰い込み、柱状部32の上端面34が底部1
4の下面14Aに当接した状態で停止する。ここで特に
注目されなければならないことはかかる上側治具41の
下方向移動によるカシメ時において、ボール弁17の下
方17Aにおける底部14の下面14Aからの突出寸法
Gに変化が生じることなく、前記第2工程におけるボー
ル弁17の突出寸法Gと同一状態に保持できたことであ
る。これは、下側治具31の下側カシメ突部35が可動
弁体13の底部14の下面14Aに当接するとともに上
側治具41の上側カシメ突部44が可動弁体13の底部
14の上面14Bに当接するや、ボール弁圧入孔16は
即座に中心部に向かってカシメ変形され、ボール弁17
のボール弁圧入孔16に対する保持力を即座に大きく増
加できたからである。従って、下側治具31の下側カシ
メ突部35が底部14の下面14Aに喰い込む量に相当
してボール弁17が位置決め係止部材38の上端面38
Bをスプリング40のバネ力に抗して下方向へ移動させ
るもので、下側治具31の柱状部32の上端面34が底
部14の下面14Aに当接した状態(下側カシメ突部3
5が底部14に完全に喰い込んだ状態)において下側カ
シメ突部35の突出代Xに相当して位置決めの係止部材
38は下方向へX移動する。而して、第2工程で設定し
た底部14の下面14Aからの下方弁部17Aの突出寸
法を維持できたものである。この状態は、ボール弁圧入
孔16をボール弁17に向けてカシメる第3工程であ
り、図2に示される。尚、上側治具41の凹部45はボ
ール弁17に当接させてはならない。以上によって可動
弁体13にボール弁17が取着された。Next, the upper jig 41 is moved downward with a strong pressing force. According to this, the downward movement of the upper jig 41 is stopped in a state where the lower end surface 43 of the upper jig 41 is in contact with the upper surface 14B of the bottom portion 14 of the movable valve body 13, and at this time, the upper caulking protrusion 44 is moved upward. Corresponding to the projecting dimension Y of the protrusion 44, the protrusion 44 bites into the upper surface 14B of the bottom portion 14, and according to this, the vicinity of the outer periphery of the upper opening end of the ball valve press-fitting hole 16 opening to the upper surface of the bottom portion 14 is directed toward the ball valve 17. It is crimped. On the other hand, in the lower jig 31, the upper end surface 34 of the columnar portion 32 is pressed toward the lower surface 14A of the bottom portion 14 of the movable valve body 13 by the downward movement of the upper jig 41. The side caulking protrusion 35 bites into the bottom portion 14 in correspondence with the protrusion dimension X, and the upper end surface 34 of the columnar portion 32 becomes the bottom portion 1.
4 is stopped while being in contact with the lower surface 14A of No. 4. It should be particularly noted here that when the upper jig 41 is swung by the downward movement, the protrusion dimension G from the lower surface 14A of the bottom portion 14 of the lower portion 17A of the ball valve 17 does not change. It is possible to maintain the same state as the projecting dimension G of the ball valve 17 in the two steps. This is because the lower caulking protrusion 35 of the lower jig 31 contacts the lower surface 14A of the bottom 14 of the movable valve body 13 and the upper caulking protrusion 44 of the upper jig 41 makes the upper surface of the bottom 14 of the movable valve body 13. 14B, the ball valve press-fitting hole 16 is instantly caulked and deformed toward the center, and the ball valve 17 is pressed.
This is because the holding force with respect to the ball valve press-fitting hole 16 can be greatly increased immediately. Therefore, the ball valve 17 has the upper end surface 38 of the positioning locking member 38 corresponding to the amount by which the lower crimping protrusion 35 of the lower jig 31 bites into the lower surface 14A of the bottom portion 14.
B is moved downward against the spring force of the spring 40, and the upper end surface 34 of the columnar portion 32 of the lower jig 31 is in contact with the lower surface 14A of the bottom portion 14 (lower caulking protrusion 3
In a state in which 5 is completely embedded in the bottom portion 14), the locking member 38 for positioning moves X downward in correspondence with the projection margin X of the lower caulking projection 35. Thus, the protrusion size of the lower valve portion 17A from the lower surface 14A of the bottom portion 14 set in the second step can be maintained. This state is the third step of crimping the ball valve press-fitting hole 16 toward the ball valve 17, and is shown in FIG. The recess 45 of the upper jig 41 should not be in contact with the ball valve 17. As described above, the ball valve 17 is attached to the movable valve body 13.
【0017】[0017]
【発明の効果】以上述べた如く、本発明になる可動弁体
におけるボール弁の取着方法によると、ボール弁の特に
下側弁部がカシメ時において位置決め係止部材の上端面
に衝突するが、かかる衝突時において位置決め係止部材
は衝突力を受けて移動することによって下側弁部との間
に衝撃力を生ずることがないので、ボール弁の弁部に対
する傷、変形を完全に抑止できたものでシール性の優れ
た電磁弁を得ることができたものである。又、ボール弁
のボール弁圧入孔に対する保持力を、ボール弁の上側及
び下側をそれぞれのカシメ突部によってカシメたので充
分なる力によって良好に保持することができたものであ
る。As described above, according to the method for attaching a ball valve in a movable valve body according to the present invention, the lower valve portion of the ball valve collides with the upper end surface of the positioning locking member at the time of crimping. During such a collision, the positioning locking member does not generate an impact force between the positioning valve and the lower valve portion by receiving the collision force, so that the ball valve valve portion can be completely prevented from being damaged or deformed. It was possible to obtain a solenoid valve with excellent sealing performance. Further, the holding force of the ball valve with respect to the ball valve press-fitting hole can be satisfactorily held because the upper side and the lower side of the ball valve are crimped by the respective caulking protrusions.
【図1】本発明になる電磁弁の可動弁体におけるボール
弁の取着方法に用いられる上側治具、下側治具を示す縦
断面図。FIG. 1 is a longitudinal sectional view showing an upper jig and a lower jig used in a method for attaching a ball valve to a movable valve body of a solenoid valve according to the present invention.
【図2】図1におけるカシメ状態を示す縦断面図。FIG. 2 is a vertical sectional view showing a crimped state in FIG.
【図3】電磁弁の縦断面図。FIG. 3 is a vertical cross-sectional view of a solenoid valve.
【図4】図3の電磁弁に用いられるボール弁を含む可動
弁体の斜視図。4 is a perspective view of a movable valve body including a ball valve used in the solenoid valve of FIG.
【図5】従来の電磁弁の可動弁体におけるボール弁の取
着方法に用いられる上側治具、下側治具を示す縦断面
図。FIG. 5 is a vertical cross-sectional view showing an upper jig and a lower jig used in a method for attaching a ball valve to a conventional movable valve body of an electromagnetic valve.
【図6】図5におけるカシメ状態を示す縦断面図。6 is a vertical cross-sectional view showing a crimped state in FIG.
13 可動弁体 14 底部 14A 下面 14B 上面 15 筒状部 16 ボール弁圧入孔 17 ボール弁 17A 下方弁部 17B 上方弁部 31 下側治具 32 柱状部 34 上端面 35 下側カシメ突部 37 係止段部 38 位置決め係止部材 38B 上端面 40 スプリング 41 上側治具 42 柱状部 43 下端面 44 上側カシメ突部 13 Movable valve body 14 Bottom part 14A Lower surface 14B Upper surface 15 Cylindrical part 16 Ball valve press-fitting hole 17 Ball valve 17A Lower valve part 17B Upper valve part 31 Lower jig 32 Column part 34 Upper end surface 35 Lower caulking protrusion 37 Locking Step portion 38 Positioning locking member 38B Upper end surface 40 Spring 41 Upper jig 42 Columnar portion 43 Lower end surface 44 Upper caulking protrusion
Claims (1)
シート孔11が開口するとともにコイル8内に上方より
挿入配置される第1固定コア9と、上端2Aに、第2流
路5に連なる第2シート孔6が開口するとともにコイル
8内に下方より挿入され、前記上端が第1固定コア9の
下端9Aに間隙Sをもって同芯に対向配置される第2固
定コア2と、コイル8の外周を囲繞して配置されるとと
もに第1固定コア9と第2固定コア2とを磁気的に結合
する筒状のハウジング1と、底部14と、底部14に連
なり下端が開口した筒状部15とよりなる有底筒状をな
し、その筒状部15は、第1固定コア9又は第2固定コ
ア2の何れか一方の外周に、その長手方向において移動
自在に案内配置されるとともに底部14に穿設されるボ
ール弁圧入孔16内に圧入されるボール弁17が第1シ
ート孔11と第2シート孔6との間に配置され、底部1
4の上面14Bより突出するボール弁17の上方弁部1
7Bが第1シート孔11を開又は閉とするとともに底部
14の下面14Aより突出するボール弁17の下方弁部
17Aが第2シート孔6を閉又は開とする可動弁体13
と、可動弁体13の筒状部15が移動自在に配置される
一方の固定コアの一方のシート孔に可動弁体13に取着
されたボール弁17を弾性的に付勢する可動弁押圧スプ
リング18とを備えた電磁弁において、固定配置される
下側治具31は、可動弁体13の筒状部15の内周15
A内に挿入され、その上端面34に、可動弁体13の底
部14に穿設されたボール弁圧入孔16の直径Fより大
径の直径Eを有する下側カシメ突部35を上方に向けて
突出して形成した柱状部32と、柱状部32の中心に配
置され、上方向への移動が係止段部37によって制限さ
れるとともにスプリング40にて係止段部37に向けて
弾性的に付勢され、その上端面38Bが柱状部32の上
端面34より下方位置に開口して配置された位置決め係
止部材38とにより形成され、長手方向に移動可能なる
上側治具41は、柱状部42と、柱状部42の下端面4
3に形成され、ボール弁圧入孔16の直径Fより大径の
直径Hを有し、下方に向けて突出して形成された上側カ
シメ突部44と、上側カシメ突部44の内方にあって下
端面43より上方位置に形成され、ボール弁17に当接
することのない深さを有する凹部45とにより形成さ
れ、下側治具31の柱状部32に可動弁体13の筒状部
15を挿入するとともに下側カシメ突部35上に可動弁
体13の底部14の下面14Aを当接して配置する第1
工程と、可動弁体13の底部14のボール弁圧入孔16
内にボール弁17を圧入するとともにボール弁17の下
方弁部17Aを位置決め係止部材38の上端面38Bに
当接し、底部14にボール弁17を位置決め配置する第
2工程と、上側治具41を可動弁体13の底部14を介
して下側治具31に圧接し、下側治具31の上端面34
が底部14の下面14Aに当接するとともに下側カシメ
突部35がボール弁圧入孔16の下方開口端の外周近傍
をボール弁17に向けて内方へカシメ、上側治具41の
下端面43が底部14の上面14Bに当接するとともに
上側カシメ突部44がボール弁圧入孔16の上方開口端
の外周近傍をボール弁17に向けて内方へカシメる第3
工程とよりなる電磁弁の可動弁体におけるボール弁の取
着方法。1. A first channel connected to a first channel 10 at a lower end 9A.
The seat hole 11 is opened and the first fixed core 9 is inserted and arranged in the coil 8 from above, and the second seat hole 6 connected to the second flow path 5 is opened in the upper end 2A and the coil 8 is inserted from below in the coil 8. The second fixed core 2 which is inserted and whose upper end is concentrically opposed to the lower end 9A of the first fixed core 9 with a gap S, and the first fixed core 9 which is arranged so as to surround the outer periphery of the coil 8. A tubular housing 1 having a cylindrical housing 1 for magnetically coupling the second fixed core 2, a bottom portion 14, and a tubular portion 15 connected to the bottom portion 14 and having a lower end opened is formed. Is press-fitted into a ball valve press-fitting hole 16 which is provided on the outer periphery of either the first fixed core 9 or the second fixed core 2 so as to be movable in the longitudinal direction thereof and is formed in the bottom portion 14. The ball valve 17 has the first seat hole 11 and the second seat hole. Is disposed between the over bets hole 6, the bottom 1
The upper valve portion 1 of the ball valve 17 protruding from the upper surface 14B of No. 4
7B opens or closes the first seat hole 11, and the lower valve portion 17A of the ball valve 17 protruding from the lower surface 14A of the bottom portion 14 closes or opens the second seat hole 6.
And a movable valve pressing member for elastically biasing the ball valve 17 attached to the movable valve body 13 into one seat hole of one fixed core in which the tubular portion 15 of the movable valve body 13 is movably arranged. In the solenoid valve provided with the spring 18, the lower jig 31 fixedly arranged has an inner circumference 15 of the tubular portion 15 of the movable valve body 13.
A lower caulking protrusion 35 having a diameter E larger than the diameter F of the ball valve press-fitting hole 16 formed in the bottom portion 14 of the movable valve body 13 is inserted into the upper end surface 34 of the lower caulking protrusion 35. And the columnar portion 32 formed so as to project, and arranged at the center of the columnar portion 32, the upward movement is restricted by the locking step portion 37, and the spring 40 elastically moves toward the locking step portion 37. The upper jig 41, which is biased and has its upper end surface 38B opened and positioned below the upper end surface 34 of the columnar section 32, and which is movable in the longitudinal direction, is the columnar section. 42 and the lower end surface 4 of the columnar portion 42
3 has a diameter H that is larger than the diameter F of the ball valve press-fitting hole 16 and that is formed on the inside of the upper caulking protrusion 44 and the upper caulking protrusion 44 that is formed so as to project downward. It is formed above the lower end surface 43, and is formed by a recess 45 having a depth that does not contact the ball valve 17, and the cylindrical portion 15 of the movable valve body 13 is attached to the columnar portion 32 of the lower jig 31. Firstly, the lower surface 14A of the bottom portion 14 of the movable valve body 13 is placed on the lower caulking protrusion 35 while being inserted.
Process and ball valve press-fitting hole 16 in bottom 14 of movable valve body 13
The second step of press-fitting the ball valve 17 therein and bringing the lower valve portion 17A of the ball valve 17 into contact with the upper end surface 38B of the positioning locking member 38 to position the ball valve 17 on the bottom portion 14 and the upper jig 41. Is pressed against the lower jig 31 via the bottom portion 14 of the movable valve body 13, and the upper end surface 34 of the lower jig 31 is
Is in contact with the lower surface 14A of the bottom portion 14, and the lower caulking projection 35 is caulked inward toward the ball valve 17 near the outer periphery of the lower opening end of the ball valve press-fitting hole 16, and the lower end surface 43 of the upper jig 41 is A third contact is made with the upper surface 14B of the bottom portion 14 and the upper side caulking protrusion 44 caulks inward toward the ball valve 17 near the outer periphery of the upper opening end of the ball valve press-fitting hole 16.
A method of attaching a ball valve to a movable valve body of a solenoid valve, the method comprising:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25939894A JP3416859B2 (en) | 1994-09-29 | 1994-09-29 | Mounting method of ball valve in movable valve body of solenoid valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25939894A JP3416859B2 (en) | 1994-09-29 | 1994-09-29 | Mounting method of ball valve in movable valve body of solenoid valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08100868A true JPH08100868A (en) | 1996-04-16 |
JP3416859B2 JP3416859B2 (en) | 2003-06-16 |
Family
ID=17333586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25939894A Expired - Fee Related JP3416859B2 (en) | 1994-09-29 | 1994-09-29 | Mounting method of ball valve in movable valve body of solenoid valve |
Country Status (1)
Country | Link |
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JP (1) | JP3416859B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108044337A (en) * | 2017-12-27 | 2018-05-18 | 爱柯迪股份有限公司 | Automatic compressed steel pearl and the device of riveting |
CN111577907A (en) * | 2019-02-19 | 2020-08-25 | 株式会社不二工机 | Valve device |
-
1994
- 1994-09-29 JP JP25939894A patent/JP3416859B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108044337A (en) * | 2017-12-27 | 2018-05-18 | 爱柯迪股份有限公司 | Automatic compressed steel pearl and the device of riveting |
CN108044337B (en) * | 2017-12-27 | 2023-08-04 | 爱柯迪股份有限公司 | Automatic steel ball pressing and riveting device |
CN111577907A (en) * | 2019-02-19 | 2020-08-25 | 株式会社不二工机 | Valve device |
CN111577907B (en) * | 2019-02-19 | 2023-12-01 | 株式会社不二工机 | Valve device |
Also Published As
Publication number | Publication date |
---|---|
JP3416859B2 (en) | 2003-06-16 |
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