Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-07-16
1993-03-30
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51133, 51132, 51118, 511313, 51292, 51263, 5116587, B24B 4916, B24B 5702
Patent
active
051972301
ABSTRACT:
This invention relates to a finish-machining machine for lapping, finish-grinding or polishing. The machine comprises upper and lower annular finishing disks, which are rotatable about a vertical axis and adapted to be separately driven, an inner annular series of pins, which is adapted to be driven, and an outer annular series of pins, which is preferably stationary. Said inner and outer series of pins are provided adjacent to the lower finishing disk. Holders for holding workpieces to be machined are provided between the inner and outer annular series of pins and are capable of performing a planetary movemennt about said axis and are provided with teeth, which mesh with both of said annular series of pins for imparting said planetary movement to said holders. The machine preferably includes a boom or a portal, in which the upper finishing disk is horizontally movably mounted. A feedback control system is provided for controlling the axial force exerted by the upper finishing disk on the lower finishing disk. A constant pressure under which the cooperating members engage each other during finishing and dressing operations is maintained in that the upper finishing disk, which is preferably mounted by means of a self-aligning bearing, is adapted to be acted upon by pneumatic or hydraulic means for exerting an axial force which is adapted to be detected by force pickups, which are mounted on the underframe of the machine and are directly contacted by or indirectly axially coupled to said lower disk.
REFERENCES:
patent: 2973605 (1961-03-01), Carman et al.
patent: 4315383 (1982-02-01), Day
Biebesheimer Klaus
Hofsess Alexander
Simpfendorfer Dieter
Diskus Werke Frankfurt am Main Aktiengesellschaft
Rose Robert A.
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