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公开(公告)号：US20230070810A1
公开(公告)日：2023-03-09
申请号：US17939749
申请日：2022-09-07
Applicant: Langenstein & Schemann GmbH
Inventor： Lothar BAUERSACHS , Markus OTTO
Abstract: Multi-part machine frame (12) for a, preferably percussive, forging machine, preferably a forging hammer (10), for forging workpieces, a) comprising at least two prefabricated frame parts (14, 15, 16) which are formed separately from each other, rest against each other in at least one or at least two support areas (65, 66) and are mutually supported and are pretensioned against each other with a set or adjustable pretension by means of pre-tensioning means, preferably a wire rope, and are thereby pressed onto each other in the one or more support area(s) (65, 66) and/or are connected to one another in a force-fitting manner, b) in which in the support area or at least one or each of the at least two support areas (65, 66) between two frame parts at least two pairs of abutting support surfaces (45A and 55A, 45B and 55B, 46A and 56A, 46B and 56B) are formed, which are separated by free surfaces (45C and 55C, 46D and 56D) arranged therebetween, between which an intermediate space is formed, c) wherein the support area(s) or the at least two pairs of support surfaces in the associated support area(s) constitute or act as a positive and/or self-positioning connection.
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公开(公告)号：US20180297105A1
公开(公告)日：2018-10-18
申请号：US15765985
申请日：2016-09-12
Applicant: Langenstein & Schemann GmbH
Inventor： Markus OTTO
CPC classification number: B21J7/30 , H02K7/14 , H02K41/031 , H02K2213/03
Abstract: The underlying invention relates in particular to a forming machine, having an electromagnetic linear motor with a linear mover and multiple coil units each with a predetermined coil pole pitch (S) which is measured in the direction of the movement axis. The linear mover includes, in an alternating arrangement along the longitudinal axis (L) thereof, first permanent magnets which are magnetized transversely to the longitudinal axis with a predetermined first magnetic pitch (T1) and second permanent magnets which are magnetized in the direction of the longitudinal axis (L) with a predetermined second magnetic pitch (T2), wherein a ratio of coil width (S) to first magnetic pitch (T1) is 3:1, and wherein a ratio of first magnetic pitch (T1) to second magnetic pitch (T2) is 2:1.
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公开(公告)号：US20240173765A1
公开(公告)日：2024-05-30
申请号：US18262891
申请日：2022-01-24
Applicant: LANGENSTEIN & SCHEMANN GMBH
Inventor： Markus OTTO
Abstract: The underlying invention relates particularly to a hydraulic forming machine, more particularly a forging hammer, for workpiece forming, comprising a hydraulic cylinder for driving a ram configured for workpiece forming, and a hydraulic circuit configured for operation of the hydraulic cylinder, wherein the hydraulic circuit has an actuator with an adjustably variable volume flow via which a first hydraulic working chamber of the hydraulic cylinder, used to accelerate the ram during the execution of a working stroke (A) for workpiece forming, can be provided with hydraulic fluid. The hydraulic circuit is configured to adjust and vary the volume flow of the valve or actuator, depending on a setpoint speed (Vsoll) of the ram to be achieved in an acceleration phase of a working stroke (A), and to optimize the subsequent movement phase.
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