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US 6,805,045 B1Granted
Press production series with offset drive
AssigneeSchuler Pressen GmbH
InventorsEkkehard Körner, Rainer Güthle
Life of this patent
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Abstract
In a press production series for massive forming with a toggle drive for driving a ram, varying stroke speeds of the ram motion are attached by adjustment of cogwheels of an planetary gear system having fixed connecting dimensions. Uniform machine frames can thus be used.
Claims5
A production series of presses for massive forming, wherein each of the presses of the series comprises:
- a machine frame;
- a ram guided in a journalled manner on the frame and arranged for attachment of a first tool component;
- a ram drive mounted on the machine frame and providing a path-time trace of the ram to attain a predetermined stroke speed, with the ram drive comprising at least one electric motor and at least one eccentric shaft connected to one another via an offset drive unit, and
- a table positioned opposite to the ram on the machine frame and arranged for attachment of a second tool component;
- and,
- wherein the presses of the production series each have substantially the same respective machine frame and a respective drive unit, with the respective drive units all having the same outer dimensions and external connections but producing respectively different path-time traces and speeds for the respective rams of the presses of the production series.
3 more elements
Dependencies are inferred from the claim text.