Automatic roller swage machine

Details Automatic roller swage machine Automatic roller swage machine

1984-10-15

1987-04-21

Larson, Lowell A.

Metal deforming

With use of control means energized in response to activator...

Sensing work or product

72 30, 72122, 72443, 318434, B21D 3910

Patent

active

046586164

ABSTRACT:
A machine and method for roller swaging hydraulic fitting sleeves onto metallic tubing comprises a tapered roller mandrel expander driven at a first high speed for rapidly expanding the tubing and at a second low speed until the drive torque reaches a final preselected value for preventing springback of the tubing and accurately controlling the amount of swaging. A torque transducer monitors mandrel loading for automatic control of machine operations. The machine provides an automatic swaging cycle inserting the expander, engaging the tapered mandrel, rotating the mandrel at the high and low speeds, reversing rotation of the mandrel for disengagement of the expander, and withdrawing the mandrel and the expander. Tare torque is measured in each swaging cycle, compensating for changing mandrel bearing drag, etc.

REFERENCES:
patent: 3031008 (1962-04-01), Schmidt
patent: 3585701 (1971-06-01), Stary
patent: 3628227 (1971-12-01), Blackburn et al.
patent: 4066942 (1978-01-01), Bardwell et al.
patent: 4147385 (1979-04-01), Velden
patent: 4215594 (1980-08-01), Workman, Jr. et al.
patent: 4239713 (1980-12-01), Brif et al.
Handbook for the type 2,000 MK 2A Swaging Machine (dated 11--81), Lancashire, England pp. 1, 2, 5, 8, 15, 18, 19.
Boeing Document No. D6--48861, pp. 1, 4, 5, 7, 8, 9, 11, Dec. 21, 1981.

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