GB1228058A - - Google Patents

Info

Publication number
GB1228058A
GB1228058A GB5585668A GB1228058DA GB1228058A GB 1228058 A GB1228058 A GB 1228058A GB 5585668 A GB5585668 A GB 5585668A GB 1228058D A GB1228058D A GB 1228058DA GB 1228058 A GB1228058 A GB 1228058A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
acting
hydraulic pressure
pressure
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
GB5585668A
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 filed Critical
Publication of GB1228058A publication Critical patent/GB1228058A/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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/165—Control arrangements for fluid-driven presses for pneumatically-hydraulically driven presses
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
    • 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
    • F15B2211/775—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)
  • Actuator (AREA)
  • Clamps And Clips (AREA)

Abstract

1,228,058. Hydraulic intensifiers. J. NEMETZ. Nov.25, 1968, No.55856/68. Heading F1P. A cylinder 2 is fed with pneumatic pressure at 17 acting on a differential piston 4 to give a higher hydraulic pressure acting on a second piston 13, whose stroke comprises low-pressure travel (both pistons moving together) and high-pressure travel, the changeover taking place as load is applied to the piston 13 by involving frictional grip on the interior of the cylinder (e.g. by conical wedges 6, 8 forcing outwardly a ring 7 due to the high hydraulic pressure). In the form shown application of pneumatic pressure acting on the piston 4 initially causes two sleeves 2a and 2b to slide with all the other moving parts until the piston 13 meets a resistance whereon intensified hydraulic pressure acting in the chambers 21 inter-connected at 23 forces the wedges 6, 8 together expanding the ring 7 to frictionally lock the sleeves in the cylinder. The minimum load at which intensification takes place is controlled by the setting of a valve 11. In another embodiment, Fig.3, (not shown) the frictional grip is provided by expanding a plastics sleeve (31) into annular grooves (33) on the inside of the cylinder.
GB5585668A 1967-06-08 1968-11-25 Expired GB1228058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN0030666 1967-06-08

Publications (1)

Publication Number Publication Date
GB1228058A true GB1228058A (en) 1971-04-15

Family

ID=7345631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5585668A Expired GB1228058A (en) 1967-06-08 1968-11-25

Country Status (4)

Country Link
US (1) US3511048A (en)
DE (1) DE1627852C3 (en)
FR (1) FR1599881A (en)
GB (1) GB1228058A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419803A1 (en) * 1978-03-14 1979-10-12 Hilti Ag APPARATUS FOR DRIVING ANKLES AND NAILS USING COMPRESSED AIR
US4308018A (en) * 1978-06-02 1981-12-29 Showa Manufacturing Co., Ltd. Trim-tilt device for marine propulsion devices
JP2018155400A (en) * 2017-03-15 2018-10-04 セイコーインスツル株式会社 Cylinder device, press device, work clamp device, cylinder device operation method, clamping method of work, and pressing method of work

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831456A (en) * 1973-04-13 1974-08-27 Kms Ind Inc Linear actuator with lock
IT1020968B (en) * 1974-10-10 1977-12-30 Peuti Anstalt FLUID OPERATED OPERATING CYLINDER WITH BUILT-IN STRESS CONVERTER
FR2477960A1 (en) * 1980-03-12 1981-09-18 Therond Marcel HYDRAULIC PRESS MECHANISM FAST RUN THEN SLOW
US4305565A (en) * 1980-04-07 1981-12-15 Hydril Company Variable position ram lock for blowout preventers
DE3338781A1 (en) * 1983-10-26 1985-05-09 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover PRESSURE-OPERATED WORKING CYLINDER WITH A DEVICE FOR DAMPING THE FINAL BRAKE OF THE WORKING PISTON
DE3625805A1 (en) * 1986-07-30 1988-02-04 Haenchen Kg Herbert HYDRAULIC PRESSURE TRANSLATOR
US5067323A (en) * 1990-06-13 1991-11-26 United Technologies Corporation Three position actuator arrangement
DE4020671A1 (en) * 1990-06-29 1992-01-02 Teves Gmbh Alfred PISTON SEAL FOR PRESSURE CONTROLLED SYSTEMS
JP3288062B2 (en) * 1991-12-27 2002-06-04 英夫 星 Cylinder type processing equipment
US5218821A (en) * 1992-04-23 1993-06-15 Doben Limited Pressure intensifier cylinder utilizing air
DE19519543C2 (en) * 1995-05-27 1998-03-26 Michael Dr Kretzschmar Pressure pliers
US5526644A (en) * 1995-06-07 1996-06-18 Brieschke; Todd M. Oil intensifier cylinder
CN106321892B (en) * 2016-11-03 2018-11-23 黄翔强 A kind of pneumatic valve device and pneumatic tongs
JP6997015B2 (en) * 2017-03-15 2022-01-17 セイコーインスツル株式会社 Cylinder device, press device, work joining device, work fixing device, cylinder device operation method, work press method, work joining method, and work fixing method
US10821564B2 (en) * 2017-03-15 2020-11-03 Seiko Instruments Inc. Cylinder device, press machine, workpiece clamping apparatus, cylinder device actuating method, method for clamping workpiece, and method for pressing workpiece
JP7058134B2 (en) * 2017-03-15 2022-04-21 セイコーインスツル株式会社 Cylinder device, press device, work clamp device, cylinder device operation method, work clamping method, and work press method
JP7058135B2 (en) * 2017-03-15 2022-04-21 セイコーインスツル株式会社 Cylinder device, press device, work clamp device, cylinder device operation method, work clamping method, and work press method
US10941790B2 (en) * 2017-03-15 2021-03-09 Seiko Instruments Inc. Cylinder device, press machine, workpiece clamping apparatus, cylinder device actuating method, method for clamping workpiece, and method for pressing workpiece
US10982690B2 (en) * 2017-03-15 2021-04-20 Seiko Instruments Inc. Cylinder device, press machine, workpiece clamping apparatus, cylinder device actuating method, method for clamping workpiece, and method for pressing workpiece
JP2019044965A (en) * 2017-08-29 2019-03-22 セイコーインスツル株式会社 Cylinder device, press device, work-piece lamp device, cylinder device working method, work-piece clamping method, and work-piece pressing method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632425A (en) * 1950-05-26 1953-03-24 Reginald L Grover Piston lock
US3135171A (en) * 1962-06-06 1964-06-02 Mechanical Power Corp Power cylinder
US3208759A (en) * 1963-12-05 1965-09-28 Firestone Collet
US3290919A (en) * 1963-12-18 1966-12-13 Cincinnati Milling Machine Co High pressure hydraulic forming press
US3320861A (en) * 1965-12-22 1967-05-23 Mechanical Power Corp Locking fluid cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419803A1 (en) * 1978-03-14 1979-10-12 Hilti Ag APPARATUS FOR DRIVING ANKLES AND NAILS USING COMPRESSED AIR
US4308018A (en) * 1978-06-02 1981-12-29 Showa Manufacturing Co., Ltd. Trim-tilt device for marine propulsion devices
JP2018155400A (en) * 2017-03-15 2018-10-04 セイコーインスツル株式会社 Cylinder device, press device, work clamp device, cylinder device operation method, clamping method of work, and pressing method of work

Also Published As

Publication number Publication date
US3511048A (en) 1970-05-12
FR1599881A (en) 1970-07-20
DE1627852A1 (en) 1971-02-25
DE1627852B2 (en) 1974-02-14
DE1627852C3 (en) 1974-09-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee