JPS60208601A - Pressure increasing cylinder - Google Patents

Pressure increasing cylinder

Info

Publication number
JPS60208601A
JPS60208601A JP59064235A JP6423584A JPS60208601A JP S60208601 A JPS60208601 A JP S60208601A JP 59064235 A JP59064235 A JP 59064235A JP 6423584 A JP6423584 A JP 6423584A JP S60208601 A JPS60208601 A JP S60208601A
Authority
JP
Japan
Prior art keywords
cylinder
pressure
piston
valve body
liquid
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
JP59064235A
Other languages
Japanese (ja)
Inventor
Masabumi Isobe
磯部　正文
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP59064235A priority Critical patent/JPS60208601A/en
Publication of JPS60208601A publication Critical patent/JPS60208601A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE:To simplify the structure of a cylinder assembly and miniaturize the size thereof, by fitting a valve body, which operates in accordance with pressure to open/close fluid passages, in a bulkhead block located between the first and the second cylinders. CONSTITUTION:A valve body 8, which operates in accordance with the variation in pressure to open/close fluid passages 11 and 12, is fitted in a bulkhead block 7 located between the first cylinder 1 and the second cylinder 2. A ram 6, which is connected to a pressure increasing piston 5, is guided to penetrate the valve body 8. With this contrivance, a limit switch or a solenoid valve, which is used to detect the location of a work, can be dispensed with, thereby simplifying the structure of a cylinder assembly, and miniaturizing the size thereof.

Description

【発明の詳細な説明】 本発明は、打抜プレス、カシメ作業等の移動の途中の所
用のときに大出力を出し、其の他の場合は、スピードが
要求される装置に使用される空油圧シリンダー装置、及
び、低圧のオイルを用いて高出力を出せる油匠シリンダ
ー装置に関するもので、比較的簡単な構造を持ち，小形
にまとめられ上記の要求を満足させ、且シリンダースト
ローク中の任意の場所で、自動的に所用の高出力が得ら
れることを特徴としたシリンダー装置であり，これまで
の類似の空油圧シリンダー装置に見られる様に、シリン
ダーストロークの最終工程に於いてのみ高出力を出すた
め、作業工程の途中に於いてシリンダーの高出力の出す
位置を調整すること，或は被加工物の位置を調整してシ
リンダーの高出力を出す位置に合すこと，リミツトスイ
ツチ等に依り被加工物の位置を感知し電磁弁の切替へを
行うなどして、低出力から高出力に切替一ること等の不
便，非能率，リミツトスイツチ等の取付に伴う不経済の
解消を目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a high output power when needed during movement such as punching presses and crimping operations, and is used in equipment that requires speed in other cases. This relates to hydraulic cylinder devices and Yusho cylinder devices that can produce high output using low-pressure oil.It has a relatively simple structure, is compact, satisfies the above requirements, and can be used at any time during the cylinder stroke. This cylinder device is characterized by being able to automatically obtain the required high output at any location.As seen in similar pneumatic and hydraulic cylinder devices to date, the high output is only achieved during the final step of the cylinder stroke. To achieve this, it is necessary to adjust the position of the cylinder that produces high output in the middle of the work process, adjust the position of the workpiece to match the position of the cylinder that produces high output, or use a limit switch etc. The purpose is to eliminate the inconvenience and inefficiency of switching from low output to high output by sensing the position of the workpiece and switching the solenoid valve, as well as the inefficiency and uneconomical effects associated with installing limit switches, etc.

本発明の実施例について第１図に依つて説明する。１，
２，は第１，２シリンダー、３、は主ピストンで外部に
突出したロツド４，と一体化している、５，は増圧ピス
トンで第１シリンダーに嵌装している、６，はラムで増
圧ピストン５，よりも小径で且一体化され、７，の隔壁
ブロツクを貫通し、８、の弁体を通過する、このときＡ
室（液体室）と液体通路１０，を遮断してＡ室を加圧す
る様に構成されている。又　８，の弁体は隔壁ブロツク
７、に嵌装され、Ａ室，の圧力が増大し適当に定められ
た圧力以上になれば、９，のばねの力に抗じて、Ｊ方向
に移動し、遮断されていた、１１、１２、の流体通路を
開とし、ラム６，のＨ方向への移動により液体通路１０
，とＡ室を遮断する一連の弁機構を形成している。１３
，１４，１５，は流体通路，１６、１７、はカバーブロ
ツク、１８はチユーブを示す。尚、Ｆ室は、空気抜孔１
９，に依り大気に開放されている。次に動作について説
明する。一般に供給流体は圧搾空気（以下エヤーと云う
）液体はオイルが便はれるので以下の説明では、供給流
体はエヤー、シリンダー内部の液体及び供給液体はオイ
ルとする。Ａ室と液体通路にオイルを満す。液体通路１
０，に低圧オイルを，流体通路１１，にエヤーを供給す
る。このとき弁体８，に加へられる圧力が小で、弁体８
，は動かないものとする、流体通路１１より入つたエヤ
ーは弁体８，に依つて遮断されている。液体通路１０，
より入つたオイルは、Ａ室に入り供給オイル圧で主ピス
トン３，を加圧する、ロツド４，に加へられる外力が小
であれば、ロツド４，はけ方向に移動する、これは低出
力で早いスピードを出している状態（供給オイル量に依
る）を示している。次にロツド４，にかかる荷重が増大
したとする、Ａ室のオイル圧は上昇し定められた圧力以
上になれば、弁体８，はＪ方向に移動して、流体通路１
１，１２，は拡大したＢ室を経由して開となり、エヤー
はチユーブ１８，流体通路１３，を通つてＥ室に流入し
て増圧ピストン５，を加圧する、ラム６，はＨ方向に移
動して液体通路１０，とＡ室を遮断する、Ａ室は密封さ
れ、ラム６，の断面積は、増圧ピストン５，より小であ
るので、パスカルの原理に依る圧力（高圧）がＡ室に発
生し、主ピストン３，を加圧して外部に大きな力を■へ
る。次に復歸について説明する。供給液体（オイル）と
供給流体（エヤー）を大気に開放し、液体通路１０，と
流体通路１１，を大気圧とする。そして、流体通路１４
，１５，よりエヤーを供給する、流体通路１４，より入
つたエヤーは、Ｄ室を加圧して増圧ピストン５，をＪ方
向に移動させる、Ｅ室のエヤーは流体通路１３，チユー
ブ１８，流体通路１２，１１，を通り外部に出る、又ラ
ム６，がＪ方向に移動するので、Ａ室の圧力は低下し、
弁体８，はばね９，に依り、Ｈ方向に移動し流体通路１
１，１２，は遮断される、そしてＥ室の残りのエヤーは
、排気口１９、より大気に放出され、Ａ室のオイルは大
気圧となつているので、流体通路１５，よりのＣ室の加
圧に依り、主ピストン３，はＪ方向に移動し、Ａ室のオ
イルは液体通路１０，を通つて外部に移り最後には図に
示すように復歸する。An embodiment of the present invention will be described with reference to FIG. 1,
2, the first and second cylinders, 3, the main piston, which is integrated with the rod 4 that protrudes outside, 5, the pressure booster piston, which is fitted in the first cylinder, 6, the ram. It has a smaller diameter than the pressure increasing piston 5, and is integrated with it, and passes through the partition wall block 7 and passes through the valve body 8.
The chamber (liquid chamber) and the liquid passage 10 are shut off and the chamber A is pressurized. Further, the valve body 8 is fitted into the partition block 7, and when the pressure in the A chamber increases and exceeds an appropriately determined pressure, it moves in the J direction against the force of the spring 9. Then, the blocked fluid passages 11 and 12 are opened, and the liquid passage 10 is opened by moving the ram 6 in the H direction.
, and form a series of valve mechanisms that shut off chamber A. 13
, 14 and 15 are fluid passages, 16 and 17 are cover blocks, and 18 is a tube. In addition, room F has air vent hole 1.
9, is open to the atmosphere. Next, the operation will be explained. In general, the supply fluid is compressed air (hereinafter referred to as air), and since oil is excreted as a liquid, in the following explanation, the supply fluid is air, and the liquid inside the cylinder and the supply liquid are oil. Fill chamber A and the liquid passage with oil. Liquid passage 1
Low pressure oil is supplied to 0, and air is supplied to fluid passage 11. At this time, the pressure applied to the valve body 8 is small, and the valve body 8
, are assumed not to move.Air entering from the fluid passage 11 is blocked by the valve body 8. liquid passage 10,
The more oil enters chamber A and pressurizes the main piston 3 with the supplied oil pressure.If the external force applied to the rod 4 is small, the rod 4 moves in the direction of the brush, which is a low output. This indicates that the engine is running at high speed (depending on the amount of oil supplied). Next, suppose that the load applied to the rod 4 increases, and when the oil pressure in chamber A rises and exceeds a predetermined pressure, the valve body 8 moves in the J direction, and the fluid passage 1
1, 12 are opened via the enlarged chamber B, and air flows into chamber E through the tube 18 and fluid passage 13 to pressurize the pressure booster piston 5. The ram 6 moves in the H direction. The chamber A is sealed and the cross-sectional area of the ram 6 is smaller than that of the pressure booster piston 5, so the pressure (high pressure) according to Pascal's principle is It is generated in the chamber, pressurizes the main piston 3, and applies a large force to the outside. Next, I will explain return. The supply liquid (oil) and the supply fluid (air) are released to the atmosphere, and the liquid passage 10 and the fluid passage 11 are brought to atmospheric pressure. And the fluid passage 14
, 15, the air entering from the fluid passage 14 pressurizes the D chamber and moves the pressure increasing piston 5 in the J direction.The air in the E chamber is supplied from the fluid passage 13, tube 18, As the ram 6 passes through the passages 12 and 11 and moves in the J direction, the pressure in the A chamber decreases.
The valve body 8 is moved in the H direction by the spring 9, and the fluid passage 1 is moved.
1, 12, are shut off, and the remaining air in chamber E is discharged to the atmosphere through the exhaust port 19, and since the oil in chamber A is at atmospheric pressure, the air in chamber C from fluid passage 15 is discharged to the atmosphere. Due to the pressurization, the main piston 3 moves in the J direction, and the oil in the A chamber moves to the outside through the liquid passage 10, and finally returns as shown in the figure.

第２図は、液体通路の遮断と開放，増圧ピストンを加圧
する流体通路の開放と遮断を弁体のみで行う例を示した
。液体室の圧力の変化に依る、弁体２０，の移動で、Ｇ
室（液体室）と液体通路２１，の遮断と、流体通路２２
，と２３，の開放に依る増圧ピストンの加圧。復歸時の
流体通路２２，と２３，の遮断と、Ｇ室と液体通路２１
，の開放を、弁体２０，のみで行うものである。FIG. 2 shows an example in which a valve body alone is used to shut off and open a liquid passage and to open and shut off a fluid passage that pressurizes a pressure booster piston. Due to the movement of the valve body 20 due to changes in the pressure in the liquid chamber, the G
Blocking the chamber (liquid chamber) and the liquid passage 21, and the fluid passage 22
, and 23, pressurize the pressure booster piston. Blocking of fluid passages 22, 23, and G chamber and liquid passage 21 during return
, is opened only by the valve body 20.

次に圧力原として、エヤーのみある場合。別にエヤー圧
に耐一る密閉された容器を用い、容器内にオイルを入れ
、容器の上方よりエヤーを供給■れは簡単にオイル圧を
得ることが出来る。この場合、市販の四方切替弁のエヤ
ーの出側の一方を、オイルを入れた容器を第１図の流体
通路１１，に連絡する。他方を流体通路１４，１５，に
連絡する。そして容器のオイルの出側を液体通路１０，
に連絡しておけば、エヤー原に接続された１ケの切替弁
により、本発明の増圧シリンダーを操作出来る。又容器
を円筒状とし内部に自由に移動出来る仕切を設け、オイ
ルとエヤーを分離し、夫々密封すれば、容器は任意の方
向に取付可能となるので容器を直接増圧シリンダーに取
付けることも出来る。Next, when there is only air as a pressure source. Separately, oil pressure can be easily obtained by using a sealed container that can withstand air pressure, placing oil in the container, and supplying air from above the container. In this case, one of the air outlet sides of a commercially available four-way switching valve is connected to a container containing oil to the fluid passage 11 shown in FIG. The other end is connected to the fluid passages 14, 15. Then, the oil outlet side of the container is connected to the liquid passage 10,
By contacting the operator, the pressure booster cylinder of the present invention can be operated using one switching valve connected to the air source. In addition, if the container is made into a cylinder and has a partition that can be moved freely inside to separate the oil and air and seal each, the container can be installed in any direction, so the container can be installed directly on the pressure booster cylinder. .

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

第１図は実施例の縦断面図、第２図は部分断面図を示す
。 １、２、…第１，第２シリンダー、３…主ピストン，４
…ロツド，５…増圧ピストン，６…ラム，７…隔壁ブロ
ツク，８．２０…弁体，９…ばね　１０，２１…液体通
路，１１．１２．１３．１４．１５．２２．２３…流体
通路、１８…チユーブ，１９…空気抜口，特許出願人　
磯部正文FIG. 1 shows a longitudinal sectional view of the embodiment, and FIG. 2 shows a partial sectional view. 1, 2,...first and second cylinders, 3...main piston, 4
... Rod, 5... Pressure booster piston, 6... Ram, 7... Partition block, 8.20... Valve body, 9... Spring 10, 21... Liquid passage, 11.12.13.14.15.22.23... Fluid Passage, 18...tube, 19...air vent, patent applicant
Masafumi Isobe

Claims (2)

【特許請求の範囲】[Claims] （１）．第１シリンダーに嵌装し供給流体に依つて作動
される増圧ピストンと、増圧ピストンより小径で増圧ピ
ストンと一体化され隔壁ブロツクを貫通１第２シリンダ
ー内に突出して液体通路を閉とするラムと、第２シリン
ダーに嵌装し第２シリンダーと液体通路の間に満された
液体を介して供給液体と上記ラムに依つて作動され供給
流体に依つて戻り動作する主ピストンと、圧力の変化に
依つて作動し増圧ピストンを加圧する流体通路を開とし
ばねに依つて戻り動作し隔壁ブロツクに嵌装された弁体
を具備したことを特徴とする、増圧シリンダー。(1). A pressure booster piston fitted in the first cylinder and operated by the supplied fluid; a pressure booster piston having a smaller diameter than the pressure booster piston and integrated with the pressure booster piston, which penetrates the partition block and protrudes into the second cylinder to close the liquid passage. a ram fitted in a second cylinder and supplied with liquid via a liquid filled between the second cylinder and the liquid passage; a main piston operated by the ram and returned by the supplied fluid; 1. A pressure boosting cylinder, characterized in that the valve body is fitted in a partition block and is operated in response to a change in the pressure to open a fluid passage for pressurizing a pressure boosting piston, and is returned in response to a spring. （２）第１シリンダーに嵌装供給流体に依つて作動され
る増圧ピストンと、増圧ピストンより小径で増圧ピスト
ンと一体化され隔壁ブロツクを貫通し第２シリンダー内
に突出するラムと、第２シリンダーに嵌装し第２シリン
ダーと液体通路の間に満された液体を介して供給液体と
上記ラムに依つて作動され供給流体に依つて戻り動作す
る主ピストンと、圧力の変化に依つて作動し増圧ピスト
ンを加圧する流体通路を開とし液体通路を閉としてばね
に依つて戻り動作する弁体を具備したことを特徴とする
、増圧シリンダー。(2) a pressure booster piston fitted in the first cylinder and operated by supply fluid; a ram having a smaller diameter than the pressure booster piston and integrated with the pressure booster piston, penetrating the partition block and projecting into the second cylinder; A main piston fitted in a second cylinder and operated by the supply liquid via the liquid filled between the second cylinder and the liquid passage, and a main piston operated by the ram and returned by the supply fluid; What is claimed is: 1. A pressure boosting cylinder comprising a valve body that opens a fluid passage for pressurizing a pressure boosting piston, closes the fluid passage, and returns to the pressure booster by a spring.
JP59064235A 1984-03-31 1984-03-31 Pressure increasing cylinder Pending JPS60208601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59064235A JPS60208601A (en) 1984-03-31 1984-03-31 Pressure increasing cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59064235A JPS60208601A (en) 1984-03-31 1984-03-31 Pressure increasing cylinder

Publications (1)

Publication Number Publication Date
JPS60208601A true JPS60208601A (en) 1985-10-21

Family

ID=13252257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59064235A Pending JPS60208601A (en) 1984-03-31 1984-03-31 Pressure increasing cylinder

Country Status (1)

Country Link
JP (1) JPS60208601A (en)

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