GB1219883A - Electromagnetic actuator - Google Patents

Electromagnetic actuator

Info

Publication number
GB1219883A
GB1219883A GB3747/69A GB374769A GB1219883A GB 1219883 A GB1219883 A GB 1219883A GB 3747/69 A GB3747/69 A GB 3747/69A GB 374769 A GB374769 A GB 374769A GB 1219883 A GB1219883 A GB 1219883A
Authority
GB
United Kingdom
Prior art keywords
secondary coil
coil
primary coil
actuating element
primary
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
GB3747/69A
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.)
Gulf General Atomic Inc
Original Assignee
Gulf General Atomic Inc
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 Gulf General Atomic Inc filed Critical Gulf General Atomic Inc
Publication of GB1219883A publication Critical patent/GB1219883A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/24—Drives for riveting machines; Transmission means therefor operated by electro-magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)

Abstract

1,219,883. Percussion tools. GULF GENERAL ATOMIC Inc. 23 Jan., 1967 [5 Feb., 1968], No. 3747/69. Heading B4C. [Also in Divisions H1 and H2] An electromagnetic actuator comprises a fixed primary coil, a movable secondary coil inductively linked to the primary coil, and an actuating element having a conductive portion inductively linked to the secondary coil so that when the primary coil is energized the actuating element is repelled with respect to the secondary coil, means being provided to damp the movement of the secondary coil. As shown, Fig. 1, a recoilless electromagnetic hammer comprises a primary coil 11 wound in a helical groove 31 in a conductive support 12, which has a gap or slit so that it does not act as a shorted turn, and secured in a easing 21 by means of an epoxy liner 32. A secondary coil 13 in the form of a conductive hollow cylinder having a longitudinal slit 36 lies within the primary coil 11, and its rear end engages a recess in an insulating disc 14 on which operates a return spring 46 and a dashpot 18. The front end of the secondary coil is provided with a layer 42 of insulating material. The actuating element (hammer) 16 is mounted in front of the secondary coil and carries a conductive portion 17 in the form of a closed ring. The primary coil is connected to a power supply via a trigger 35 mounted in handle 27 and flexible conduits may also extend through cable 33 to supply coolant to the liner 32. In operation a pulse of current is applied to the primary coil, e.g. by discharge of a capacitor bank, the resulting magnetic field linking the primary and secondary coils resulting in a secondary current the field due to which induces a current in the conductive portion 17 of the actuating element. The actuating element and the secondary coil repel one another, the movement of the secondary coil being damped by a dashpot 18. In an alternative embodiment, Fig. 2 (not shown), the primary coil is positioned within the secondary coil and the dashpot may be omitted. The actuator may also be applied to the operation of valves and switches.
GB3747/69A 1968-02-05 1969-01-23 Electromagnetic actuator Expired GB1219883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70300668A 1968-02-05 1968-02-05

Publications (1)

Publication Number Publication Date
GB1219883A true GB1219883A (en) 1971-01-20

Family

ID=24823556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3747/69A Expired GB1219883A (en) 1968-02-05 1969-01-23 Electromagnetic actuator

Country Status (5)

Country Link
US (1) US3453463A (en)
CH (1) CH493078A (en)
DE (1) DE1904880B2 (en)
FR (1) FR2001315A1 (en)
GB (1) GB1219883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006108524A1 (en) * 2005-04-15 2006-10-19 Compact Dynamics Gmbh Linear actuator for an electric percussion tool

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704506A (en) * 1968-08-01 1972-12-05 Boeing Co Electromagnetic high energy forming
US3558907A (en) * 1969-01-22 1971-01-26 Ite Imperial Corp Impulse coil system for transmitting shock wave through stationary rod
US3731370A (en) * 1970-11-06 1973-05-08 Grumman Aerospace Corp Method and apparatus for deforming a metal workpiece for upsetting rivets and for blind riveting
US3646791A (en) * 1970-11-06 1972-03-07 Grumman Aerospace Corp Method and apparatus for deforming a metal workpiece, for upsetting rivets, and for blind riveting
US3718829A (en) * 1970-12-08 1973-02-27 Raymond Lee Organization Inc Reciprocating motor with conductive disc armature
US3811313A (en) * 1971-04-12 1974-05-21 Boeing Co Electromagnetic high energy impact apparatus
CS153699B1 (en) * 1971-10-26 1974-03-29
GB1571089A (en) * 1976-01-22 1980-07-09 Lucas Industries Ltd Electromagnetic actuators
US4132108A (en) * 1977-09-28 1979-01-02 The Boeing Company Ram assembly for electromagnetic high energy impact apparatus
GB2023353B (en) * 1978-06-19 1982-10-06 Ibm Actuator for a printer
US4300282A (en) * 1979-08-16 1981-11-17 Amp Inc. Free standing insertion tool
US4862043A (en) * 1987-05-27 1989-08-29 Zieve Peter B Low voltage electromagnetic pulse actuator
US5231747A (en) * 1990-12-21 1993-08-03 The Boeing Company Drill/rivet device
US5263236A (en) * 1990-12-21 1993-11-23 The Boeing Company Drill quill bearing assembly
US5280673A (en) * 1992-02-21 1994-01-25 Electroimpact, Inc. Electromagnetic bolt insertion system
US5471865A (en) * 1993-09-09 1995-12-05 Gemcor Engineering Corp. High energy impact riveting apparatus and method
EP1324861A1 (en) * 2000-08-25 2003-07-09 Senco Products, Inc Impact device
US6481092B2 (en) 2001-02-26 2002-11-19 The Boeing Company Electromagnetic coil, and method and apparatus for making same
DE10231430B4 (en) * 2002-07-11 2005-03-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for the automated forming of thin-walled workpieces
DE102005036560A1 (en) * 2005-08-03 2007-02-08 Wacker Construction Equipment Ag Drilling and / or percussion hammer with linear drive and air cooling
DE102010043447A1 (en) * 2009-12-15 2011-06-16 Robert Bosch Gmbh Hand tool with a counter-oscillator
CN101890473B (en) * 2010-07-09 2012-01-04 哈尔滨工业大学 Portable low-voltage electromagnetism riveter
CN103949573B (en) * 2014-04-29 2015-12-09 中国航空工业集团公司北京航空制造工程研究所 A kind of electromagnetic rivetter adopting reciprocating electromagnetism lift-off technology
CN104841840B (en) * 2015-04-24 2016-10-05 福州大学 A kind of portable dual coil electromagnetic riveting set
CN106363121B (en) * 2016-10-21 2018-02-09 福州大学 A kind of compact electromagnetic riveting gun cooling device and its implementation
CN109127988B (en) * 2018-08-18 2020-02-04 晨龙飞机（荆门）有限公司 Automatic squeeze riveter of aircraft aggregate erection is applied to in specialty

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA655122A (en) * 1963-01-01 Alons Luitje Electrodynamic transducer
US1167366A (en) * 1913-01-29 1916-01-04 Submarine Signal Co Dynamo-electric machinery.
FR1009714A (en) * 1948-06-18 1952-06-03 Onera (Off Nat Aerospatiale) High power electrodynamic motor
US2645728A (en) * 1951-06-05 1953-07-14 Mb Mfg Company Inc Electrical vibratory apparatus
US2820161A (en) * 1954-06-01 1958-01-14 Calidyne Company Electromagnetic vibration generator
FR1272951A (en) * 1960-07-02 1961-10-06 Vibratory electrodynamic motor
US3161793A (en) * 1960-09-13 1964-12-15 Nat Res Dev Electrical machines involving the reciprocation of moving parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006108524A1 (en) * 2005-04-15 2006-10-19 Compact Dynamics Gmbh Linear actuator for an electric percussion tool

Also Published As

Publication number Publication date
DE1904880B2 (en) 1974-07-25
FR2001315A1 (en) 1969-09-26
US3453463A (en) 1969-07-01
DE1904880C3 (en) 1975-03-20
CH493078A (en) 1970-06-30
DE1904880A1 (en) 1969-08-21

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