GB928879A - Improvements in or relating to work holding devices - Google Patents

Improvements in or relating to work holding devices

Info

Publication number
GB928879A
GB928879A GB974962A GB974962A GB928879A GB 928879 A GB928879 A GB 928879A GB 974962 A GB974962 A GB 974962A GB 974962 A GB974962 A GB 974962A GB 928879 A GB928879 A GB 928879A
Authority
GB
United Kingdom
Prior art keywords
magnet
faces
ribs
holding devices
magnetic
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
GB974962A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB928879A publication Critical patent/GB928879A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices
    • B23Q3/1546—Stationary devices using permanent magnets

Abstract

928,879. Magnetic holding devices. ROBERT BOSCH G.m.b.H. March 14, 1962 [March 15, 1961], No. 9749/62. Class 35. A magnetic work holder may be switched . " on " or " off " by rotating the generally cylindrical magnet 12 through 90 degrees in a casing 10 which has the holding surfaces divided into at least two pole regions 20, 22 and 21, 23 by recesses 15, 16. The magnet 12 comprises pole faces 13, 14 with spaced ribs 26, 27 on its side faces, the ribs and pole faces being machined to fit in the bore 11. In the " on " position, shown in Fig. 3, the flux circuit may be completed through surface 25 of magnetic material to retain the device or will retain magnetic material placed across faces 20, 22. In the " off" position the magnet is rotated through 90 degrees (Fig. 4, not shown) and the flux is short-circuited through the sides of the casing. The magnet is cast from an aluminiumnickel-cobalt alloy and the ribs and pole faces ground to size.
GB974962A 1961-03-15 1962-03-14 Improvements in or relating to work holding devices Expired GB928879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB61700A DE1152488B (en) 1961-03-15 1961-03-15 Permanent magnetic clamping device with switchable adhesive force and process for the production of the associated permanent magnet

Publications (1)

Publication Number Publication Date
GB928879A true GB928879A (en) 1963-06-19

Family

ID=6973294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB974962A Expired GB928879A (en) 1961-03-15 1962-03-14 Improvements in or relating to work holding devices

Country Status (3)

Country Link
CH (1) CH391126A (en)
DE (1) DE1152488B (en)
GB (1) GB928879A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711515A (en) * 1996-02-05 1998-01-27 Kabushiki Kaisha Nishimura Jig Workpiece support for vise
NL2009798C2 (en) * 2012-11-13 2014-05-14 Goudsmit Magnetic Systems B V SWITCH ON / OFF MAGNETIC GRIPPER.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5578505A (en) * 1978-12-08 1980-06-13 Kanetsuu Kogyo Kk Attraction type magnetic device
DE4328171A1 (en) * 1993-08-21 1995-02-23 Krupp Ag Hoesch Krupp Magnetic gripper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204933A (en) * 1937-04-22 1939-05-31 Bing Julius Magnetic clamping device.
GB578075A (en) * 1944-11-06 1946-06-13 Stanley Isaiah Hitchcock Improvements in magnetic work holders
GB737576A (en) * 1952-08-14 1955-09-28 Thomas Sadler Improvements in or relating to magnetic holders
FR1224883A (en) * 1958-02-01 1960-06-28 Bosch Gmbh Robert Magnetic fixing device by permanent magnet, the adhesive force of which can be removed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711515A (en) * 1996-02-05 1998-01-27 Kabushiki Kaisha Nishimura Jig Workpiece support for vise
NL2009798C2 (en) * 2012-11-13 2014-05-14 Goudsmit Magnetic Systems B V SWITCH ON / OFF MAGNETIC GRIPPER.

Also Published As

Publication number Publication date
CH391126A (en) 1965-04-30
DE1152488B (en) 1963-08-08

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