Finish-machining machine comprising means for feeding an abrasiv

Details Finish-machining machine comprising means for feeding an abrasiv Finish-machining machine comprising means for feeding an abrasiv

1990-07-16

1992-05-05

Rose, Robert A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51118, 51263, 51292, B24B 3704, B24B 5702

Patent

active

051096315

ABSTRACT:
This invention relates to a finish-machining machine comprising two finishing disks, which are centered on a vertical axis, and means for feeding an abrasive slurry at a controlled rate to the working gap between said disks. The invention is particularly applicable to such a machine which can be used for lapping, finish-grinding and/or polishing. The machine is provided with such feeding means for feeding the abrasive slurry at a controlled rate, which is consistent with the specification of the workpieces which are to be finished and the selected machining conditions. The upper finishing disk is formed on its top surface with one annular groove or with a plurality of annular grooves, which communicate through bores with the working gap between the finishing disks and the means for feeding the abrasive slurry comprise scraping means, which are operable to rotate relative to the upper finishing disk and to deliver said abrasive slurry to said groove or grooves and comprise a plurality of scrapers, which constitute an array that is centered on the axis of the upper finishing disk, and separate drive means are provided for rotating said scraping means independently of the upper finishing disk preferably in a sense that is opposite to the sense of rotation of the upper finishing disk when the upper finishing disk rotates at a speed below a predetermined limit.

REFERENCES:
patent: 267783 (1882-11-01), Folsom
patent: 1476863 (1923-12-01), Weaver
patent: 2973605 (1961-03-01), Carman et al.
patent: 3978621 (1976-09-01), Janssen

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