Electrolytic grinding machine

Electrolytic grinding machine

928,706. Electrolytic grinding. HAMMOND MACHINERY BUILDERS Inc. Dec. 13, 1961 [Jan. 3, 1961], No. 44690/61. Class 41. An electric motor is provided with one or two grinding wheels 27, 28 each mounted at one or both ends of the rotor spindle, the spindle and bearing being insulated from the A.C. moto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBISCHUNG PHILIP J, SUTTON DONALD E
Format: Patent
Sprache:eng
Schlagworte:
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Zusammenfassung:928,706. Electrolytic grinding. HAMMOND MACHINERY BUILDERS Inc. Dec. 13, 1961 [Jan. 3, 1961], No. 44690/61. Class 41. An electric motor is provided with one or two grinding wheels 27, 28 each mounted at one or both ends of the rotor spindle, the spindle and bearing being insulated from the A.C. motor field power supply, and the grinding wheels connected to a D.C. supply applied to the spindle between the two bearings. The end bells 2, 3 are insulated from the casing 4 by insulating rings 5,10, and the bearing 19 is provided with an insulating sleeve 21. A slip ring 31 mounted between the two bearings is provided with three brush units disposed radially, of the type shown at 33 which are spring-loaded and connected to a D.C. source, at negative potential, the positive terminal is connected to the workpiece.