Machine for performing high speed stamping and forming operation

Details Machine for performing high speed stamping and forming operation Machine for performing high speed stamping and forming operation

1995-06-29

1998-02-17

Jones, David

Metal deforming

With tool carrier

With guide for rectilinearly moving tool

724525, 72347, B21D 3718

Patent

active

057181454

ABSTRACT:
A high speed stamping and forming machine (10) is provided having a ram (34) capable of sustained high speed operation. The ram (34) is pivotally attached to a connecting rod (36) which is eccentrically coupled to a drive shaft by means of an eccentric (40) and hydrostatic bearing (50). The drive shaft (30) is journaled in hydrostatic bearings (84, 86) in the frame (12) of the machine. The ram reciprocates toward and away from a bolster plate (20) within a ram bearing (138) having hydrostatic bearings therein. A source of high pressure hydraulic fluid is interconnected to the hydrostatic bearing (50) of the eccentric coupling by means of a fluid coupling (350, 352) consisting of telescoping tubes, one end of which engages a spherically shaped seat (356, 358) in the frame (12) that is in communication with the high pressure fluid source and the other end of which engages a spherical shaped seat (354) in the moving connecting rod (36), which is in communication via a passageway (60) with the hydrostatic bearing (50). A main counterweight (142) is provided on the drive shaft (30) to counterbalance the effects of the reciprocating ram and a two shaft (166), counter-rotating weight system counterbalances lateral loads imposed on the machine (10) by the main counterweight. The bolster plate (20) of the machine is provided with a deep support structure (24) and surrounding concrete (26) to form a stable base (28) to reduce vibrations caused by the impact of the tooling with the strip of material being formed or blanked.

REFERENCES:
patent: 4173138 (1979-11-01), Main et al.
patent: 4578981 (1986-04-01), Nishikawa et al.
patent: 4934167 (1990-06-01), Grims et al.
patent: 4976131 (1990-12-01), Grims et al.
patent: 4996865 (1991-03-01), Haulsee et al.
patent: 5555761 (1996-09-01), Lavy
Software package titled Advanced Rotating Machinery Dynamics, published by RBTS, Inc., Conshohocken, PA, pp. 7-49 thru 7-51 and 7-76 thru 7-77.

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