Method and system for detecting brake wear in a metal forming ma

Details Method and system for detecting brake wear in a metal forming ma Method and system for detecting brake wear in a metal forming ma

1974-09-09

1976-01-13

Lanham, C. W.

Metal deforming

With means to drive tool

With means to selectably control movement of tool

72 19, 72 26, 100 53, 188 1A, 192 30W, B21J 746

Patent

active

039317277

ABSTRACT:
The specification discloses a method and system for detecting brake wear in a metal forming machine having a ram operable by a rotative drive and further having a brake for stopping the ram. The amount of rotation of the drive for the machine is determined from the time of energization of the brake to the time of stopping of the ram by the brake. This determined amount of rotation is compared with a predetermined magnitude. An alarm is generated as the determined amount of rotation of the drive exceeds the predetermined magnitude, thereby indicating excessive brake wear. Further operation of the ram is then prevented upon the generation of an alarm. The specification further discloses a check system for checking the operation of various components of the detection system prior to detecting of the brake wear.

REFERENCES:
patent: 2828846 (1958-04-01), Viguers et al.
patent: 3056481 (1962-10-01), Luenser
patent: 3268047 (1966-08-01), Grygera et al.
patent: 3463286 (1969-08-01), Jeavons
patent: 3572484 (1971-03-01), Richins
patent: 3589482 (1971-06-01), Weston
patent: 3628357 (1971-12-01), Luenser
patent: 3666965 (1972-05-01), Luenser
patent: 3693770 (1972-09-01), Charchian et al.

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