Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1981-10-23
1982-11-02
Kunin, Stephen G.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 50PC, 51DIG32, 408 54, 409104, 409111, 409211, B24B 1702
Patent
active
043566693
ABSTRACT:
A grinding apparatus for forming and grinding complex curved surfaces such as the peritrochordal bore of rotary a combustion engine, e.g. Wankel engine, having a cam member with a surface corresponding to the surface of the workpiece to be ground, a grinding wheel, a turntable for fixing the workpiece for rotational movement with the cam member, drive elements for rotating the turntable and workpiece against the grinding wheel, a cam follower connected to a device for supporting and moving the grinding wheel in response to cam follower movement as it traces the cam member contour, and a normalty control device for pivoting the grinding wheel support about the axis of rotation of the cam follower to maintain perpendicularity of a plane passing through the axis of the grinding wheel, the cam follower axis, the contact point between the grinding wheel and the work surface, and the contact point between the cam follower and cam member normal to the tangent line of the work surface contour at the contact point between grinding wheel and work surface. The normalty control device in combination with grinder moving device automatically compensates for grinding wheel wear.
REFERENCES:
patent: 3663188 (1972-05-01), Hoglund
patent: 3693297 (1972-09-01), Cann
patent: 3822511 (1974-07-01), Hoglund
patent: 3828481 (1974-08-01), Uhtenwoldt
patent: 3902278 (1975-09-01), Uhtenwoldt
patent: 3921339 (1975-11-01), Kikuchi
patent: 3943665 (1976-03-01), Nagashima
patent: 4005552 (1977-02-01), Hoglund et al.
Kunin Stephen G.
Malin Eugene F.
Olszewski Robert P.
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