JPH0419210Y2 - - Google Patents
Info
- Publication number
- JPH0419210Y2 JPH0419210Y2 JP1985144181U JP14418185U JPH0419210Y2 JP H0419210 Y2 JPH0419210 Y2 JP H0419210Y2 JP 1985144181 U JP1985144181 U JP 1985144181U JP 14418185 U JP14418185 U JP 14418185U JP H0419210 Y2 JPH0419210 Y2 JP H0419210Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- hydraulic
- press
- cylinder
- oil
- 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
- 239000012530 fluid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
Landscapes
- Automatic Assembly (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Fluid-Pressure Circuits (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、四輪自動車の左右の１対のロアーア
ーム等のように同圧の圧入力で取付部材に圧入し
て構成される少なくとも２組のワークの製作に適
用される圧入駆動装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention consists of at least two sets that are press-fitted into a mounting member with the same pressing force, such as a pair of left and right lower arms of a four-wheeled vehicle. The present invention relates to a press-fitting drive device applied to the production of workpieces.
（従来の技術）
従来、例えば左右１対のロアーアームとトルク
チユーブアウタとから成る２組のワークを設け、
各組の２ワークを夫々油圧シリンダにより互に圧
入させて組立てすることは行なわれているが、こ
の場合、各組のワークの圧入圧は同圧で同距離だ
け圧入されることが望ましいので、第３図示のよ
うに１台の油圧ポンプａにより駆動される１台の
油圧シリンダｂを用意し、該１台の油圧シリンダ
ｂにより順次に各組のワークｃ，ｃを圧入してい
る。(Prior Art) Conventionally, for example, two sets of workpieces each consisting of a pair of left and right lower arms and a torque tube outer are provided.
It is common practice to assemble two workpieces in each set by press-fitting them into each other using hydraulic cylinders, but in this case, it is desirable that the workpieces in each set be press-fitted at the same pressure and for the same distance. As shown in the third figure, one hydraulic cylinder b driven by one hydraulic pump a is prepared, and each set of works c, c is sequentially press-fitted by the one hydraulic cylinder b.
（考案が解決しようとする問題点）
複数組のワークを同圧で同距離だけ圧入する作
業を１台の油圧シリンダにより行なうと時間が掛
つて能率的でない。(Problems to be Solved by the Invention) If a single hydraulic cylinder is used to press-fit multiple sets of workpieces by the same distance under the same pressure, it is time consuming and inefficient.
油圧シリンダをワークの組数だけ設けることは
出来るが、この場合制御弁を備えた複雑な回路を
設けないと各シリンダを同圧、同距離だけ移動さ
せて各ワークを同時に圧入することは出来ない。
また、油圧ポンプの吐出圧力は低い方が動力コス
トが安価になつて好ましい。 It is possible to install as many hydraulic cylinders as there are workpieces, but in this case, unless a complex circuit with a control valve is installed, it is not possible to move each cylinder at the same pressure and the same distance to press-fit each workpiece at the same time. .
Further, it is preferable that the discharge pressure of the hydraulic pump is lower because the power cost is lower.
本考案は複数組のワークを複数本のシリンダで
同時に同圧で同距離だけ圧入させる簡単且つ安価
な装置でしかも低圧で作動でき更に圧入初期段階
でワーク同士を軽く挿入してその後の本圧入をス
ムーズに行い得られるようにした装置を提供する
ことをその目的としている。 This invention is a simple and inexpensive device that press-fits multiple sets of workpieces at the same distance using multiple cylinders at the same pressure, and can operate at low pressure.Furthermore, the workpieces can be inserted lightly into each other at the initial stage of press-fitting, and then the main press-fitting can be carried out. The purpose is to provide a device that can be used smoothly.
（問題点を解決するための手段）
上記目的を達成すべく、本発明では、互に圧入
されるワークを少なくとも２組設け、各組のワー
クの圧入を油圧ポンプにより駆動される同寸法の
油圧シリンダにて行なうようにしたものに於い
て、油圧ポンプの吐出回路を中間シリンダに接続
し、該中間シリンダのピストンの一端面を該油圧
ポンプの吐出圧が作用する大径の受圧面に形成す
ると共にその他端面に受圧面積が等しく且つその
合計面積が前記受圧面よりも小さい複数のピスト
ンを突設してその夫々を小シリンダ室に収め、各
油圧シリンダの往動用油室に各小シリンダ室を
夫々往動用油路を介して接続し、更にエア圧を変
換して比較的低圧の油圧を出力する第１と第２の
１対のコンバータを設け、ワークの圧入時に中間
シリンダの作動に先行して第１コンバータからの
油圧を各往動用油路に夫々パイロツトチエツク弁
を介して導入自在とすると共に、各油圧シリンダ
の復動用油室に連なる復動用油路に第２コンバー
タを接続して、該第２コンバータからの油圧で各
油圧シリンダを復動させるようにし、この復動時
に復動用油路の油圧により各パイロツトチエツク
弁を開いて各往動用油路から第１コンバータに油
を戻すようにした。(Means for Solving the Problems) In order to achieve the above object, the present invention provides at least two sets of workpieces to be press-fitted into each other, and press-fits each set of workpieces with hydraulic pressure of the same size driven by a hydraulic pump. In the cylinder, the discharge circuit of the hydraulic pump is connected to an intermediate cylinder, and one end surface of the piston of the intermediate cylinder is formed into a large diameter pressure receiving surface on which the discharge pressure of the hydraulic pump acts. At the same time, a plurality of pistons having equal pressure-receiving areas and a total area smaller than the pressure-receiving surface are protruded from the other end face, and each of the pistons is housed in a small cylinder chamber, and each small cylinder chamber is placed in the forward movement oil chamber of each hydraulic cylinder. A pair of first and second converters are provided, which are connected to each other via forward oil passages, and further convert air pressure to output relatively low-pressure oil pressure, so that the converters precede the operation of the intermediate cylinder when press-fitting a workpiece. so that hydraulic pressure from the first converter can be freely introduced into each forward oil passage through a pilot check valve, and a second converter is connected to the backward oil passage connected to the backward oil chamber of each hydraulic cylinder, The hydraulic pressure from the second converter causes each hydraulic cylinder to move backward, and during this backward movement, the hydraulic pressure in the backward movement oil path opens each pilot check valve to return oil from each forward movement oil path to the first converter. I made it.
（作 用）
互に圧入されるワークを例えば２組設ける場
合、各組のワークを圧入する油圧シリンダに中間
シリンダの各小シリンダ室を接続し、該中間シリ
ンダに油圧ポンプの流体を供給する。該中間シリ
ンダのピストンの大径の一端面に該油圧ポンプの
吐出圧が作用すると、その他端面の複数の小ピス
トンが収容された小シリンダ室から該ポンプ吐出
圧より高圧化した流体が各油圧シリンダへと送り
出される。各小ピストンは受圧面積が等しく、そ
の合計面積は前記大径の一端面の面積よりも小さ
いので、該中間シリンダから各油圧シリンダに供
給される油量は同量でその圧力は等しくしかもポ
ンプの吐出圧よりも高い。従つてワークを圧入さ
せる各油圧シリンダは同圧で同距離移動し、同時
に同条件で各組のワークを圧入することが出来、
その圧入圧はポンプの吐出圧よりも高く出来るの
で該ポンプの吐出圧を低く設定して運転すること
が可能になる。(Function) When, for example, two sets of workpieces are press-fitted into each other, each small cylinder chamber of the intermediate cylinder is connected to a hydraulic cylinder into which each set of workpieces is press-fitted, and fluid from a hydraulic pump is supplied to the intermediate cylinder. When the discharge pressure of the hydraulic pump acts on one end face of the large diameter of the piston of the intermediate cylinder, fluid with a pressure higher than the pump discharge pressure is applied to each hydraulic cylinder from the small cylinder chamber in which a plurality of small pistons are housed on the other end face. be sent to. Each small piston has the same pressure receiving area, and the total area is smaller than the area of one end surface of the large diameter, so the amount of oil supplied from the intermediate cylinder to each hydraulic cylinder is the same, the pressure is the same, and the pump higher than the discharge pressure. Therefore, each hydraulic cylinder that press-fits a workpiece moves the same distance with the same pressure, and it is possible to press-fit each set of workpieces at the same time under the same conditions.
Since the press-in pressure can be higher than the discharge pressure of the pump, it is possible to operate the pump with the discharge pressure set low.
又、第２コンバータからの油圧による各油圧シ
リンダの復動時に各パイロツトチエツク弁を介し
て第１コンバータに戻された油を、ワーク圧入初
期段階で第１コンバータから各パイロツトチエツ
ク弁を介して各往動用油路に給油し、各油圧シリ
ンダを低圧で往動させて各組の一方のワークを他
方のワークになじませつつこれに軽く挿入でき、
その後の中間シリンダからの高圧の油圧によるワ
ークの圧入をスムーズに行い得られる。 Also, during the return movement of each hydraulic cylinder by the hydraulic pressure from the second converter, the oil returned to the first converter through each pilot check valve is transferred from the first converter through each pilot check valve at the initial stage of workpiece press-fitting. By supplying oil to the forward oil passage and moving each hydraulic cylinder forward at low pressure, one workpiece of each set can be easily inserted into the other workpiece while blending with the other workpiece.
After that, the workpiece can be smoothly press-fitted using high-pressure hydraulic pressure from the intermediate cylinder.
（実施例）
本考案の実施例を自動車の左右１対のトルクチ
ユーブアウタにロアーアームを圧入する場合につ
き説明すると、第１図に於いて符号１，２は互に
圧入されるワークで、一方のワーク１はトルクチ
ユーブアウタ、他方のワーク２は該アウタに圧入
されるロアーアームで構成され、ワーク１，２は
その２組をセツトし、同寸法の油圧シリンダ３，
４によりその２組が同時に圧入される。(Embodiment) An embodiment of the present invention will be described with reference to the case where a lower arm is press-fitted into a pair of left and right torque tube outer parts of an automobile. The work 1 consists of a torque tube outer, and the other work 2 consists of a lower arm that is press-fitted into the outer.The two sets of works 1 and 2 are set, and a hydraulic cylinder 3 of the same size,
4, the two sets are press-fitted at the same time.
２組のワーク１，２の圧入は同圧で行ない、し
かも各組共同距離を圧入されることが好ましく、
本考案に於いては油圧ポンプからの吐出回路５を
中間シリンダ６に接続し、第２図示のように該中
間シリンダ６のピストン７の一端面７ａを該ポン
プからの吐出圧が作用する大径の受圧面に形成す
ると共にその他端面７ｂに小シリンダ室８，９に
収容れる同面積の小ピストン１０，１１を突設
し、各室８，９を夫々往動用油路１２，１３を介
して各油圧シリンダ３，４の往動用油室に接続し
た。かくて、各油圧シリンダ３，４に同圧、同量
の流体を供給することが出来、各組のワーク１，
２を同圧で同距離だけ同時に圧入出来る。 It is preferable that the two sets of works 1 and 2 are press-fitted at the same pressure, and each set is press-fitted at a common distance.
In the present invention, the discharge circuit 5 from the hydraulic pump is connected to the intermediate cylinder 6, and as shown in the second figure, one end surface 7a of the piston 7 of the intermediate cylinder 6 has a large diameter on which the discharge pressure from the pump acts. small pistons 10 and 11 having the same area and accommodated in the small cylinder chambers 8 and 9 are provided on the other end surface 7b, and the respective chambers 8 and 9 are connected to each other via forward oil passages 12 and 13. It was connected to the forward movement oil chamber of each hydraulic cylinder 3, 4. In this way, the same pressure and the same amount of fluid can be supplied to each hydraulic cylinder 3, 4, and each set of workpieces 1,
2 can be pressed in at the same time with the same pressure and the same distance.
該ピストン１０，１１の合計面積は一端面７ａ
の面積よりも小さく、該小ピストン１０，１１に
より圧送される流体の圧力を吐出回路５の圧力よ
りも高くし得、該吐出回路５の圧力が比較的低く
てもよいので動力コストが安価になる。 The total area of the pistons 10 and 11 is one end surface 7a.
The pressure of the fluid pumped by the small pistons 10, 11 can be made higher than the pressure of the discharge circuit 5, and the pressure of the discharge circuit 5 may be relatively low, so the power cost can be reduced. Become.
尚、図示のものではエア圧を油圧に変換する１
対の第１第２コンバータ１４1，１４2を設けて、
第１コンバータ１４1を一対のパイロツトチエツ
ク弁１５1，１５2を介して前記各油路１２，１３
に接続しワーク１，２の圧入初期段階では該第１
コンバータ１４1からの比較的低圧の油圧でシリ
ンダ３，４を作動させ、ワーク２の嵌合部先端を
ワーク１に両者１，２に形成するセレーシヨンを
咬み合せつつ軽く挿入し、次いで上記の如く中間
シリンダ６を作動させてワーク１，２の圧入を行
なうようにし、又第２コンバータ１４2をシリン
ダ３，４NO復動用油室に連なる復動用油路１６
に接続し、圧入完了後該第２コンバータ１４2に
エアを導入してコンバータ１４2からの油圧でシ
リンダ３，４を復動させ、この際シリンダ３，４
から油路１２，１３に押し出される油を中間シリ
ンダ６側と次いで油路１６からの油圧で開かれる
各チエツクバルブ１５1，１５2を介して第１コン
バータ１４1側とに戻すようにした。 In addition, the one shown is one that converts air pressure into hydraulic pressure.
A pair of first and second converters 14 1 and 14 2 are provided,
The first converter 14 1 is connected to each oil passage 12 , 13 through a pair of pilot check valves 15 1 , 15 2 .
At the initial stage of press-fitting works 1 and 2, the first
The cylinders 3 and 4 are operated by relatively low hydraulic pressure from the converter 14 1 , and the tip of the fitting part of the work 2 is lightly inserted into the work 1 while engaging the serrations formed on both 1 and 2, and then as described above. The intermediate cylinder 6 is operated to press-fit the works 1 and 2, and the second converter 142 is connected to the double-acting oil passage 16 connected to the double-acting oil chamber of the cylinders 3 and 4.
After the press-fit is completed, air is introduced into the second converter 14 2 and the cylinders 3 and 4 are moved back with the hydraulic pressure from the converter 14 2 .
The oil pushed out from the oil passages 12 and 13 is returned to the intermediate cylinder 6 side and then to the first converter 14 1 side via check valves 15 1 and 15 2 opened by the oil pressure from the oil passage 16.
（考案の効果）
このように本考案によるときは、複数組のワー
クを圧入する各油圧シリンダに、受圧面積の等し
い複数本の小ピストンを備えた中間シリンダを接
続したので、該中間シリンダに油圧ポンプから流
体を供給すれば各油圧シリンダに同時に同圧同量
の流体を供給し得、各組のワークを同圧で同距離
だけ圧入することで出来、圧入作業が迅速化され
その装置も比較的簡単で安価に製作出来、中間シ
リンダに於いて増圧出来るのでポンプからは低圧
の流体を供給すればよく、運転コストが安価にな
り、更に圧入初期段階にワーク同士を互いになじ
ませつつ軽く挿入できて、その後の高圧下でワー
クの圧入をスムーズに行い得られる効果を有す
る。(Effect of the invention) In this way, according to the invention, an intermediate cylinder equipped with a plurality of small pistons having the same pressure receiving area is connected to each hydraulic cylinder into which a plurality of sets of workpieces are press-fitted. By supplying fluid from a pump, it is possible to supply the same amount of fluid at the same pressure to each hydraulic cylinder at the same time, and each set of workpieces can be press-fitted at the same pressure and the same distance, which speeds up the press-fitting work and makes it possible to compare the equipment. It is easy and inexpensive to manufacture, and since the pressure can be increased in the intermediate cylinder, it is only necessary to supply low-pressure fluid from the pump, reducing operating costs.In addition, the workpieces can be easily inserted while blending them with each other in the initial stage of press-fitting. This has the effect of smoothly press-fitting the workpiece under high pressure.
第１図は本考案の実施例の線図、第２図はその
要部の截断側面図、第３図は従来例の線図であ
る。
１，２……ワーク、３，４……油圧シリンダ、
５……吐出回路、６……中間シリンダ、７……ピ
ストン、７ａ……一端面、７ｂ……他端面、８，
９……小シリンダ室、１０，１１……小ピスト
ン。
FIG. 1 is a diagram of an embodiment of the present invention, FIG. 2 is a cross-sectional side view of the main part thereof, and FIG. 3 is a diagram of a conventional example. 1, 2... Workpiece, 3, 4... Hydraulic cylinder,
5...Discharge circuit, 6...Intermediate cylinder, 7...Piston, 7a...One end surface, 7b...Other end surface, 8,
9...Small cylinder chamber, 10, 11...Small piston.
Claims (1)
各組のワークの圧入を油圧ポンプにより駆動され
る同寸法の油圧シリンダにて行なうようにしたも
のに於いて、油圧ポンプの吐出回路を中間シリン
ダに接続し、該中間シリンダのピストンの一端面
を該油圧ポンプの吐出圧が作用する大径の受圧面
に形成すると共にその他端面に受圧面積が等しく
且つその合計面積が前記受圧面よりも小さい複数
のピストンを突設してその夫々を小シリンダ室に
収め、各油圧シリンダの往動用油室に各小シリン
ダ室を夫々往動用油路を介して接続し、更にエア
圧を変換して比較的低圧の油圧を出力する第１と
第２の１対のコンバータを設け、ワークの圧入時
に中間シリンダの作動に先行して第１コンバータ
からの油圧を各往動用油路に夫々パイロツトチエ
ツク弁を介して導入自在とすると共に、各油圧シ
リンダの復動用油室に連なる復動用油路に第２コ
ンバータを接続して、該第２ンコンバータからの
油圧で各油圧シリンダを復動させるようにし、こ
の復動時に復動用油路の油圧により各パイロツト
チエツク弁を開いて各往動用油路から第１コンバ
ータに油を戻すようにしたことを特徴とする圧入
駆動装置。 Provide at least two sets of workpieces that are press-fitted into each other,
In a system in which each set of workpieces is press-fitted using a hydraulic cylinder of the same size driven by a hydraulic pump, the discharge circuit of the hydraulic pump is connected to the intermediate cylinder, and one end surface of the piston of the intermediate cylinder is connected to the hydraulic cylinder. A plurality of pistons are formed on a large diameter pressure receiving surface on which the discharge pressure of the hydraulic pump acts, and a plurality of pistons having equal pressure receiving areas and smaller total area than the pressure receiving surface are protruded from the other end surface, and each of the pistons is formed in a small cylinder chamber. and connect each small cylinder chamber to the forward oil chamber of each hydraulic cylinder via a forward oil passage, and further convert air pressure to output relatively low-pressure oil pressure. A pair of converters is provided, and the hydraulic pressure from the first converter can be freely introduced into each forward movement oil path via a pilot check valve, prior to the operation of the intermediate cylinder when a workpiece is press-fitted, and the hydraulic pressure can be freely introduced into each forward movement oil passage through a respective pilot check valve. A second converter is connected to the backward-acting oil passage connected to the oil chamber, and the hydraulic pressure from the second converter causes each hydraulic cylinder to move backward, and during this backward movement, each pilot check is performed by the hydraulic pressure of the backward-acting oil passage. A press-fit drive device characterized in that a valve is opened to return oil from each forward oil passage to the first converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985144181U JPH0419210Y2 (en) | 1985-09-24 | 1985-09-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985144181U JPH0419210Y2 (en) | 1985-09-24 | 1985-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6254302U JPS6254302U (en) | 1987-04-04 |
| JPH0419210Y2 true JPH0419210Y2 (en) | 1992-04-30 |
Family
ID=31054550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985144181U Expired JPH0419210Y2 (en) | 1985-09-24 | 1985-09-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419210Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010164086A (en) * | 2009-01-13 | 2010-07-29 | Isuzu Motors Ltd | Plunger mechanism for combining multiple thrust |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225915A (en) * | 1975-08-22 | 1977-02-26 | Hitachi Ltd | Oil pressure system turning device of gas turbine |
| JPS5519900B2 (en) * | 1976-08-12 | 1980-05-29 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5519900U (en) * | 1978-07-26 | 1980-02-07 | ||
| JPS59103901U (en) * | 1982-12-28 | 1984-07-12 | 株式会社大阪ジヤツキ製作所 | Hydraulic jack tuning circuit |
-
1985
- 1985-09-24 JP JP1985144181U patent/JPH0419210Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225915A (en) * | 1975-08-22 | 1977-02-26 | Hitachi Ltd | Oil pressure system turning device of gas turbine |
| JPS5519900B2 (en) * | 1976-08-12 | 1980-05-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6254302U (en) | 1987-04-04 |
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