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US 11,976,702 B2Granted
Spring-damper element for the mounting of a punching press
AssigneeBruderer AG
InventorUgo De Santis
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AssigneeBruderer AG
InventorUgo De Santis
Estimating the term…
The invention relates to a spring-damper element (2) for mounting a punching press (1), with a hydraulic damper unit (3) with a first fluid chamber (4) and a second fluid chamber (5), wherein, in the intended operation, a hydraulic fluid is displaced from the first fluid chamber (4) via a throttle point (6) into the second fluid chamber (5) when the spring-damper element (2) is compressed. The damper unit further comprises an overload valve (7) arranged between the first fluid chamber (4) and the second fluid chamber (5), which overload valve opens when a specific fluid pressure is reached in the first fluid chamber (4) or when a specific pressure difference is reached between the first fluid chamber (4) and the second fluid chamber (5) and releases a bypass (8) via which hydraulic fluid then flows from the first fluid chamber (4) into the second fluid chamber (5) bypassing the throttle point (6). Thereby, the spring-damper element (2) is designed in such a way that the fluid pressure or the pressure difference, respectively, at which the overload valve (7) opens can be adjusted when the spring-damper element (2) is installed as intended. With such spring-damper elements according to the invention, it becomes possible to create a mounting arrangement for a punching press, the damping characteristics of which can be adjusted without significant effort, such that a variable operation of the press in wide ranges becomes possible while keeping the ground loading to a minimum in each case.
A spring-damper element for the mounting of a punching press, with a hydraulic damper unit with a first fluid chamber and a second fluid chamber, wherein, in the intended operation, a hydraulic fluid is displaced from the first fluid chamber via a throttle point of selected cross-section into the second fluid chamber during compression of the spring-damper element, and with an overload valve arranged between the first fluid chamber and the second fluid chamber, which, on reaching a specific fluid pressure in the first fluid chamber or on reaching a specific pressure difference between the first fluid chamber and the second fluid chamber, is opened by the specific fluid pressure or pressure difference and releases a bypass, via which hydraulic fluid then flows from the first fluid chamber into the second fluid chamber, bypassing the throttle point, wherein the overload valve is adjustable so that the valve is closed and fluid flow through the valve is blocked until the fluid pressure or the pressure difference, respectively, to which the overload valve is adjusted is reached and the valve opens.
Dependencies are inferred from the claim text.