Machine workhead with magnetic driver

Details Machine workhead with magnetic driver Machine workhead with magnetic driver

1982-11-23

1985-04-30

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

279 1M, B24B 502

Patent

active

045135410

ABSTRACT:
An electromagnet is disposed between a pair of bearings rotatably mounting a spindle in the housing of a machine workhead, such as the workhead of a grinding machine. The magnetic flux from the electromagnet is guided by the spindle extending therethrough to its workpart driving end located outside the housing. Bearing shoes engaging the workpart are connected to the housing so as to complete the magnetic flux path to the electromagnet through the housing. Non-magnetic shields are disposed between the bearings and the electromagnet and housing to prevent wear debris accumulation and etching of the bearing components from magnetic flux effects.

REFERENCES:
patent: 2812185 (1957-11-01), Snell
patent: 3273292 (1966-09-01), Seidel
patent: 3604161 (1971-09-01), Zvezdnaya et al.
patent: 3750343 (1973-08-01), Johnson
patent: 3893676 (1975-07-01), Gloshinski et al.

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