GB1325129A - Permanentmagnet magnetic chucks or work holders - Google Patents

Permanentmagnet magnetic chucks or work holders

Info

Publication number
GB1325129A
GB1325129A GB1906772A GB1906772A GB1325129A GB 1325129 A GB1325129 A GB 1325129A GB 1906772 A GB1906772 A GB 1906772A GB 1906772 A GB1906772 A GB 1906772A GB 1325129 A GB1325129 A GB 1325129A
Authority
GB
United Kingdom
Prior art keywords
polepieces
magnetic
magnets
permanent magnets
core
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
GB1906772A
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 GB1325129A publication Critical patent/GB1325129A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/15Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154Stationary devices
    • B23Q3/1546Stationary devices using permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1325129 Magnetic holding devices P M BRAILLON 25 April 1972 [13 May 1971] 19067/72 Heading H1P A magnetic chuck or work-holder comprises (Fig. 1) a base-plate 1 of magnetizable material and a polar plate 4 wherein polepieces 5 and non-magnetic separators 6 are lineally stacked at predetermined pitch. A non-magnetic metal rectangular frame 2 having cylindrical recesses receiving alternate polepieces 7 and permanent magnets 8 which is interposed between plates 1 and 4 receives a slidable core 3 having a non- magnetic metal block with cylindrical recesses in two longitudinal rows alternately receiving polepieces 9 and permanent magnets 10. In the position of Fig. 2 the magnets and polepieces are transversely aligned so that polepieces 5 are energized to attract a workpiece 12 (Fig. 3) by a magnetic field looped therethrough. In the opposite position of the core 3 (Figs. 4, 5, not shown) the magnets are misaligned inter se and the magnetic field is looped through the polepieces 5 of plate 4 to release the workpiece. In a modification (Figs. 6-9, not shown), the magnetic core comprises three adjacent blocks each having two rows of cylindrical holes alternately receiving polepieces and permanent magnets enclosed in a frame as above, with the central block stationary and the flank blocks movable simultaneously; all the magnets being aligned in the operative position and misaligned inter se in the release position. The magnets and polepieces are identical and interchangeable.
GB1906772A 1971-05-13 1972-04-25 Permanentmagnet magnetic chucks or work holders Expired GB1325129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717118322A FR2137347B1 (en) 1971-05-13 1971-05-13

Publications (1)

Publication Number Publication Date
GB1325129A true GB1325129A (en) 1973-08-01

Family

ID=9077359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1906772A Expired GB1325129A (en) 1971-05-13 1972-04-25 Permanentmagnet magnetic chucks or work holders

Country Status (13)

Country Link
JP (1) JPS5410057Y2 (en)
AT (1) AT311762B (en)
AU (1) AU458846B2 (en)
BE (1) BE782825A (en)
CA (1) CA943184A (en)
CH (1) CH558232A (en)
ES (1) ES402676A1 (en)
FR (1) FR2137347B1 (en)
GB (1) GB1325129A (en)
IT (1) IT953821B (en)
NL (1) NL158421B (en)
SE (1) SE395121B (en)
ZA (1) ZA722774B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959237U (en) * 1982-10-15 1984-04-18 鐘通工業株式会社 Switchable permanent magnetic chuck
US5495770A (en) * 1990-07-19 1996-03-05 Stark, Jr.; Emil Device for measuring expansions and compressions
JP6713595B2 (en) * 2015-10-09 2020-06-24 株式会社サンアイ精機 Holding device

Also Published As

Publication number Publication date
NL158421B (en) 1978-11-15
AT311762B (en) 1973-12-10
DE2221832B2 (en) 1976-03-18
SE395121B (en) 1977-08-01
BE782825A (en) 1972-08-16
CA943184A (en) 1974-03-05
IT953821B (en) 1973-08-10
JPS52167668U (en) 1977-12-19
AU458846B2 (en) 1975-03-13
ZA722774B (en) 1973-01-31
FR2137347B1 (en) 1973-05-11
FR2137347A1 (en) 1972-12-29
NL7206467A (en) 1972-11-15
ES402676A1 (en) 1975-04-01
DE2221832A1 (en) 1972-11-23
CH558232A (en) 1975-01-31
JPS5410057Y2 (en) 1979-05-10
AU4183772A (en) 1973-12-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee