Leaf spring cambering apparatus

Metal deforming – By tool-couple embodying nonplanar tool-face – With adjustable or replaceable section of tool-face

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Details

72473, 72482, B21D 3702

Patent

active

052243702

ABSTRACT:
Disclosed is a cambering apparatus for imparting a predetermined camber to a leaf blank for a laminated spring, which requires no change-over of molds in accordance with order changes, whereby to reduce the change-over time greatly to improve productivity. The cambering apparatus comprises a reformable mold, constituting a cope, having a plurality of adjustable mold members connected to one after another in such a way that their postures can be adjusted and locked; a pair of flexible plates disposed on each side of the row of the adjustable mold members; a couple of reforming devices each having engageable devices for movably engaging with the flexible plates, which impart a required profile to the flexible plates; and a pressing device, constituting a drag, disposed to oppose the reformable mold, for pressing said leaf blank placed therebetween against the reformable mold; wherein by imparting a predetermined camber profile to the flexible plates with the reforming devices, the free ends of the adjustable mold members disposed to the flexible plates, opposing to the pressing device, are designed to present as a whole a continuous curve corresponding to the profile of said flexible plates.

REFERENCES:
patent: 1272531 (1918-07-01), Riley
patent: 1331630 (1920-02-01), Elkins
patent: 1465152 (1923-08-01), Williams et al.
patent: 1776082 (1930-09-01), Peterson
patent: 4976125 (1990-12-01), Wilson
patent: 4987760 (1991-01-01), Schulte
patent: 5187969 (1993-02-01), Morita

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