GB1184531A - Fluid Operated Device for Applying a Force Against a Workpiece. - Google Patents

Fluid Operated Device for Applying a Force Against a Workpiece.

Info

Publication number
GB1184531A
GB1184531A GB01450/68A GB1145068A GB1184531A GB 1184531 A GB1184531 A GB 1184531A GB 01450/68 A GB01450/68 A GB 01450/68A GB 1145068 A GB1145068 A GB 1145068A GB 1184531 A GB1184531 A GB 1184531A
Authority
GB
United Kingdom
Prior art keywords
piston
extension
rod
workpiece
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
Application number
GB01450/68A
Inventor
Joseph Donald Snitgen
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 GB1184531A publication Critical patent/GB1184531A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/31—Electrode holders and actuating devices therefor
    • 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
    • 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
    • F15B2211/775—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)
  • Details Of Reciprocating Pumps (AREA)
  • Actuator (AREA)

Abstract

1,184,531. Welding by pressure. J. D. SNITGEN. 8 March, 1968 [8 March, 1967], No. 11450/68. Heading B3R. [Also in Division F1] The rod 47 Fig. 1 of a compressed air actuated cup-shaped piston 28 slidably extends through and is coupled by a coil spring 107 to a sleeve secured to the R.H.S. of an hydraulic piston 57 and projects into an oil-filled cavity 51 formed in an extension 12 on the L.H.S. of piston 57 and serving to transmit force to a workpiece e.g. one or both electrodes of a spotwelding apparatus, the cavity 51 being in open communication through inclined passages 95 with an oil-filled cylinder space 64 Fig. 2 and also being connected to a cylinder space 65 through radial ports 101 until the latter become blocked by the end 49 of rod 47; the arrangement being that on admission of low pressure compressed air to the R.H.S. of piston 28 and assuming extension 12 to be unloaded, said piston 28 and rod 47 carry piston 57 forward at a fast rate and without relative displacement by virtue of the reaction of coil spring 107 until when extension 12 meets resistance offered by a workpiece, rod 47 moves forward relative to piston 57 so as to close radial ports 101 and thus force oil at high pressure from cavity 51, through passages 95 into cylinder space 64 thereby urging piston 57 and extension 12 forwardly at a slow rate and high force.
GB01450/68A 1967-03-08 1968-03-08 Fluid Operated Device for Applying a Force Against a Workpiece. Expired GB1184531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US621511A US3410089A (en) 1967-03-08 1967-03-08 Fluid operated device

Publications (1)

Publication Number Publication Date
GB1184531A true GB1184531A (en) 1970-03-18

Family

ID=24490466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01450/68A Expired GB1184531A (en) 1967-03-08 1968-03-08 Fluid Operated Device for Applying a Force Against a Workpiece.

Country Status (2)

Country Link
US (1) US3410089A (en)
GB (1) GB1184531A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488957A (en) * 1968-05-29 1970-01-13 Joseph D Snitgen Fluid operated device
US3905635A (en) * 1973-01-10 1975-09-16 Eaton Corp Material grasping clamp assembly
US3910048A (en) * 1974-06-20 1975-10-07 Bendix Corp Hydraulic lock for hydraulic ratio changer
DE3221758A1 (en) * 1982-06-09 1983-12-15 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim HYDRAULIC DRIVE DEVICE
FR2547871B1 (en) * 1983-06-24 1987-10-16 Mecagrav Sa PRESSURE MULTIPLIER
US5188014A (en) * 1990-02-14 1993-02-23 Dionizy Simson Hydraulic cylinder with pressure transmission
EP0442842B1 (en) * 1990-02-14 1994-04-06 Dionizy Simson Hydraulic actuator with pressure intensifier
US5353683A (en) * 1993-07-20 1994-10-11 Snitgen Joseph D Pneumatic transformer
US5435228A (en) * 1993-07-20 1995-07-25 Pneumatic Energy Inc Pneumatic transformer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276206A (en) * 1963-06-10 1966-10-04 Calkins Dolores Pressure intensifier mechanism
US3266415A (en) * 1964-06-02 1966-08-16 Basil S Palmer Air-hydraulic ram

Also Published As

Publication number Publication date
US3410089A (en) 1968-11-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees