GB955888A - Device for intensifying hydraulic pressure - Google Patents

Device for intensifying hydraulic pressure

Info

Publication number
GB955888A
GB955888A GB18762A GB18762A GB955888A GB 955888 A GB955888 A GB 955888A GB 18762 A GB18762 A GB 18762A GB 18762 A GB18762 A GB 18762A GB 955888 A GB955888 A GB 955888A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure
chamber
passage
spring
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
Application number
GB18762A
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
Publication of GB955888A publication Critical patent/GB955888A/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/106—Arrangements for positively actuating jaws using screws with mechanical or hydraulic power amplifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • 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
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/77—Control of direction of movement of the output member
    • F15B2211/7716—Control of direction of movement of the output member with automatic return
    • 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
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Gripping On Spindles (AREA)

Abstract

955,888. Machine tool details. E. M. TOROSSIAN. Jan. 2, 1962 [April 10, 1961], No. 187/62. Heading B3B. [Also in Division F1] A fluid-operated servomotor for moving the jaw 23, Fig. 2, of a machine tool vice, mandrel or clamp, comprises a low-pressure piston 30 in a low-pressure cylinder 27, and a highpressure piston 33 which is responsive to the movement of the low-pressure piston and through which a plunger or like member 32 carried by the low-pressure piston is adapted to extend into a high-pressure cylinder 34. The pistons 30, 33 are axially slidable in the cylinder 27 which is formed by the skirt of a piston 25 on which the jaw 23 is slidable against a spring 24. Low-pressure air supplied through an inlet 29 acts on the piston 30 to exert force on a spring 39 and move the piston 33 to the left, displacing hydraulic fluid from a chamber 34 through a passage 35 in piston 25 into a chamber 26 to move the jaw 23 until it engages a workpiece abutting a fixed jaw. Continued supply of air causes the piston 30 to compress the spring which acts on piston 33 to increase the pressure in the chambers 34, 26, the continued movement of piston 30 then causing the plunger 32 to extend from piston 33 and enter the passage 35 so that the plunger effects an intensified pressure in the chamber 26 to increase the force exerted by the jaw 23 on the workpiece. In an alternative embodiment, the piston 25, Fig. 6, is slidable in a cylinder 44 and attached by a sleeve 42 to a pull-rod 40, ports 46 in the sleeve connecting chamber 26 to the passage 35. Air supplied through the inlet 29 displaces piston 30 and, by way of spring 39, the piston 33 to discharge hydraulic fluid from chamber 34 through passage 35 into chamber 26 to move piston 25 and hence the pull-rod 40 to the right. As the rod engages a load, the movement of the piston 30 cause the spring 39 and piston 33 to apply increased pressure to the fluid in chamber 26 until the plunger 32 enters the passage 35 to provide an intensified pressure in chamber 26 to increase the force applied by the rod 40.
GB18762A 1961-04-10 1962-01-02 Device for intensifying hydraulic pressure Expired GB955888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH422261 1961-04-10

Publications (1)

Publication Number Publication Date
GB955888A true GB955888A (en) 1964-04-22

Family

ID=4272066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18762A Expired GB955888A (en) 1961-04-10 1962-01-02 Device for intensifying hydraulic pressure

Country Status (1)

Country Link
GB (1) GB955888A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421033A1 (en) * 1978-03-30 1979-10-26 Tunkers Gmbh PNEUMATIC OR HYDRAULIC DEVICE FOR MOUNTING BLANK PARTS WITH ARTICULATED LEVER WITH TWO PRESSURE STAGE CYLINDER CYLINDER
WO1979000986A1 (en) * 1978-04-26 1979-11-29 Rapp Eugen Pressure raising hydropneumatic control device
FR2483020A1 (en) * 1980-05-22 1981-11-27 Smeets Gerard PRESSURE MULTIPLIER SYSTEM
FR2588915A1 (en) * 1985-10-18 1987-04-24 Flopetrol TOOL FOR CLOSING A WELL PRODUCTION COLUMN
ES2237235A1 (en) * 2001-08-22 2005-07-16 GEORG KESEL GMHB & CO. KG. Rapid clamping device
CN106002670A (en) * 2016-07-18 2016-10-12 天津优瑞纳斯液压机械有限公司 Hydraulic clamping device
CN106625305A (en) * 2017-02-13 2017-05-10 李志东 Flat tongs fixture
JP2021142609A (en) * 2020-03-12 2021-09-24 株式会社ナベヤ Automatically clamping vice

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421033A1 (en) * 1978-03-30 1979-10-26 Tunkers Gmbh PNEUMATIC OR HYDRAULIC DEVICE FOR MOUNTING BLANK PARTS WITH ARTICULATED LEVER WITH TWO PRESSURE STAGE CYLINDER CYLINDER
WO1979000986A1 (en) * 1978-04-26 1979-11-29 Rapp Eugen Pressure raising hydropneumatic control device
FR2483020A1 (en) * 1980-05-22 1981-11-27 Smeets Gerard PRESSURE MULTIPLIER SYSTEM
FR2588915A1 (en) * 1985-10-18 1987-04-24 Flopetrol TOOL FOR CLOSING A WELL PRODUCTION COLUMN
EP0225815A1 (en) * 1985-10-18 1987-06-16 Flopetrol Services, Inc. Tool for closing the production string of a well
US4944350A (en) * 1985-10-18 1990-07-31 Schlumberger Technology Corporation Tool for closing a well tubing
ES2237235A1 (en) * 2001-08-22 2005-07-16 GEORG KESEL GMHB & CO. KG. Rapid clamping device
CN106002670A (en) * 2016-07-18 2016-10-12 天津优瑞纳斯液压机械有限公司 Hydraulic clamping device
CN106002670B (en) * 2016-07-18 2018-06-01 天津优瑞纳斯液压机械有限公司 A kind of hydraulic clamp
CN106625305A (en) * 2017-02-13 2017-05-10 李志东 Flat tongs fixture
JP2021142609A (en) * 2020-03-12 2021-09-24 株式会社ナベヤ Automatically clamping vice

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