Cutting by use of rotating axially moving tool – Means to drive tool – Including means to move tool along tool-axis
Patent
1988-03-25
1990-04-03
Bishop, Steven C.
Cutting by use of rotating axially moving tool
Means to drive tool
Including means to move tool along tool-axis
92108, B23B 4722
Patent
active
049136003
ABSTRACT:
A drilling unit comprises a housing (5), a drilling spindle housing means (3) axially moveable within said housing (5), a driling spindle (2) rotatably received within said housing (5) and driven by a driving means (12), a plunger (15) connected to the drilling spindle housing means (3) and piston means (22) slideably received within said housing (5) and operatively connected to the plunger (15). The plunger (15) is connected to the piston means (22) with a first clearance (51) in a plane normal to the direction (A) of the axial movement of the plunger. The piston means (22) further is connected to the plunger (15) with a second clearance (52) in the direction of the axis (A) of said drilling unit. The drilling unit exhibits excellent linearity of axial motion combined with a high degree of accuracy and, at the same time, requires as little space as possible in a plane parallel to a plane, in which a workpiece is positioned.
REFERENCES:
patent: 3266580 (1966-08-01), Clapp et al.
patent: 3373414 (1968-03-01), Carter
patent: 4119017 (1978-10-01), Nusbaumer et al.
patent: 4257489 (1981-03-01), Westerberg
"Der Luft ein Schnippchen Geschlagen", Roboter, 2/83, pp. 66-67, Germany.
"Fluid-Lern Program: Hydraulik", Moderne Industrie, c. 1973, p. 83, FIG. 1.2.2, Germany: (Reproduction of German Industrial Norm DIN 24 300, leaflet 3, p. 5, No. 1.2.2).
Dierich Dieter
Rotter Walter
Trollmann Conrad
Bardales Norman R.
Bishop Steven C.
International Business Machines - Corporation
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