Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1976-01-02
1978-07-18
Simpson, Othell M.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
91167R, 279 2R, B21B 3714, F15B 2102
Patent
active
041007808
ABSTRACT:
A binary controlled tube bending machine wherein a binary punched card system is used to programmably control (1) the longitudinal position of a plurality of spaced bends along the length of a tubular workpiece; (2) the radial orientation of the bends with respect to one another; and (3) the depth of each of the bends. An elongated work support having a bending station positioned at one end thereof slidably mounts a carriage for reciprocal motion toward and away from the bending station. An arbor assembly is mounted on the carriage for releasably retaining the tubular workpiece. The reciprocal motion of a first rack gear controls the advance of the carriage to properly position the workpiece longitudinally for successive bends; the reciprocal motion of a second rack gear controls the radial orientation of the workpiece by controlling the angle through which the arbor assembly is rotated; and the vertical positioning of a limit switch which operates to terminate the stroke of a hydraulic ram having a bending die at one end thereof controls the depth of the bend. The operation of the first and second rack gears and the limit switch positioner is effected by a binary feed mechanism under the program control of a punched card system.
Each binary feed mechanism includes a plurality of cylinder assemblies arranged in an axially aligned series. Each of the assemblies has a piston, a piston rod and a cylinder housing. The length of the piston stroke of each of the assemblies represents a discrete binary number. The series is arranged sequentially so as to represent the sequence of binary numbers (2.sup.0, 2.sup.1, 2.sup.2, . . . 2.sup.n).
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patent: 3426562 (1969-02-01), Inda
patent: 3435963 (1969-04-01), Jacoby et al.
patent: 3548714 (1970-12-01), Barrett
Bilinsky Z. R.
Simpson Othell M.
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