Magnetic chuck for chucking or lifting workpieces

Details Magnetic chuck for chucking or lifting workpieces Magnetic chuck for chucking or lifting workpieces

1989-08-14

1990-06-19

Watson, Robert C.

Work holders

Magnetic holder

269 21, B23Q 3154, B25B 1100

Patent

active

049346709

ABSTRACT:
The magnetic chuck for chucking or raising workpieces has differently poled (S and N) magnetic pole pieces (1), between which is located a pole pitch (2) of non-ferromagnetic material. In order to make the magnetic chuck more universally usable for workpieces made from non-magnetizable or weakly magnetizable material, it is additionally constructed as a vacuum chuck. This is brought about by correspondingly differently designed bores or slots, which are preferably filled with sintered metal and by means of which the vacuum is applied through corresponding vacuum lines. Due to the fact that the magnetic force and/or the force applied by the vacuum is available as a retaining or holding force, a universal use of the same tool is possible and simultaneously a considerable holding force can be applied.

REFERENCES:
patent: 3330754 (1967-07-01), Trager
patent: 3787039 (1974-01-01), Zeichman
patent: 4139051 (1979-02-01), Jones et al.

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