Apparatus for precision grinding of end mounted objects

Details Apparatus for precision grinding of end mounted objects Apparatus for precision grinding of end mounted objects

1984-08-09

1985-02-05

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

511659, 51225, 51233, 51288, 76 82, 409 63, 91 6, B24B 302

Patent

active

044971397

ABSTRACT:
A tool (15) to be ground is mounted in a vertical position to the upper end of a vertically oriented piston (21). The lower end of the piston (21) is received into the open end of a cylinder (22). Radial fluid bearings (28, 29) are pressurized to permit rotational and longitudinal movement of the piston (21) with respect to the cylinder (22). Pressurized fluid is delivered to the piston (21) to exert a force on the piston (21) that nearly counterbalances the combined weight of the piston (21) and the tool (15). Additional fluid pressure or some other suitable force is applied to move the piston (21) and the tool (15) axially upwardly. At the end of the upward stroke, the additional force on the piston (21) is removed to allow said combined weight to move the piston (21) and the tool (15) downwardly. During the upward stroke, the downward stroke, or both the upward and the downward strokes, a grinding wheel (13) is held in a fixed position to contact a side surface of tool (15). Rotational movement of tool (15) may be produced and guided by finger (18) as the tool (15) is moving axially and is in contact with the grinding wheel (13). The bearings (28, 29) may be carried by the piston (21) or by the cylinder (22).

REFERENCES:
patent: 880120 (1908-02-01), Blessing
patent: 1725302 (1929-08-01), Riddle et al.
patent: 2850849 (1958-09-01), Babbitt
patent: 3774556 (1973-11-01), Poll
patent: 3894476 (1975-07-01), Cobb

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