摘要:
Die Erfindung betrifft eine Beschickungsvorrichtung (2) für eine Büchsenaufweitvorrichtung (1) für gelochte Büchsenrohlinge (3) mit einem Beschickungsgewicht von im warmen Zustand von vielen hundert Tonnen, zum Beispiel 200 bis 800 Tonnen, vorzugsweise 200 bis 600 Tonnen, sowie ein Verfahren zum Schmieden gelochter Büchsenrohlinge.
摘要:
The invention relates to metal-forming process. The inventive method for producing forging consists in heating a billet and forging said billet with the aid of a press provided with two manipulators in several passes by four-side reduction in four-headed forging devices associated with macro-shears of metal in a transversal direction with respect to the plane of the billet. Forging is carried out within an acceptable temperature range in two stages i.e. a rough forging is carried out in the first stage, at the second stage, a final forging is carried out by enclosing from 40 to 100 % of the perimeter of the cross-section of the billet by each pair of the working surfaces of the heads for each single reduction. The inventive forging system comprises a forging press provided with top and bottom plates which have locks for arranging and fixing forging tools, a movable tool table for positioning changeable forging tools thereon which are embodied in the form of two or more four-headed forging devices and one or two manipulators. One or more four-headed forging devices for rough forging and one four-headed forging device for final forging are disposed on the positions of the tool table. The free space between the heads of the final forging device within the cross section thereof, when the heads are in the closed position, is selected such that it is 1.1-1.4 times less than the free space between the heads of the rough forging device. The working surface of each head of the rough forging device is embodied in the form of a plane parallel to the reference plane of the head, and two lateral planes adjacent thereto and arranged on two sides thereof at an angle of 135-170 DEG .
摘要:
Device for transferring a wire piece cut from a wire of starting material, such as steel, from a station where the wire piece has been separated from the wire or is being treated, to one or more consecutive treatment stations, wherein the device comprises gripping means for engaging the wire piece at its longitudinal ends and means for moving the gripping means.
摘要:
Eine Spannvorrichtung (1) zum Fixieren eines Werkstücks umfasst zwei Spannelemente (4, 5), von denen ein Spannelement (4, 5) unter Veränderung einer momentanen Schwenkstellung des Spannelementes (4, 5) sowie unter Veränderung einer momentanen Relativ-Schwenkstellung der beiden Spannelemente (4,5) relativ zu dem anderen Spannelement (4, 5) mit einer Schwenkbewegung um eine Schwenkachse (8, 9) zustellbar ist. Eine Detektionsvorrichtung (19) der Spannvorrichtung (1) umfasst einen Drehgeber (17), mittels dessen die momen¬ tane Schwenkstellung des Spannelementes (4, 5) fortlaufend detektierbar ist, indem mittels des Drehgebers ( 17) ein momentaner Betrag der Schwenkbewegung des Spannelementes (4, 5) fortlaufend erfassbar ist. Mit der Detektionsvorrichtung (19) ist eine Auswertevorrichtung (18) verbunden, mittels derer anhand des fortlaufend erfassten momentanen Betrages der Schwenkbewegung des Spannelementes (4, 5) fortlaufend die dem momentanen Betrag der Schwenkbewegung des Spannelementes (4, 5) zugeordnete momentane RelativSchwenkstellung der beiden Spannelemente (4, 5) bestimmbar ist.
摘要:
A device including at least one transformer (1) with primer (N1) / seconder (N2) coil ratio more than one and including a control unit (9) used to control timing and magnetute of the primer current is employed to heat a metal workpiece (4) to be subjected a subsequent forming operation. An homopolar DC generator can also be used as current source for current heating preparing workpiece for forming operation. Subsequent heating, forming and cooling processes of the metal workpiece are carried out in a controlled manner by a central synchronization unit. This process can be applicated in hot metal bulk forging, sheet forming and hot tube blowforming.
摘要:
Das Handhabungsgetät gemäß der Erfindung zum Handhaben eines Werkstücks während eines Umformprozesses, insbesondere eines Schmiedevorgangs, umfasst a) wenigstens eine Greifeinrichtung (3) mit wenigstens zwei relativ zu einander bewegbaren Greifelementen (30, 31) zum Greifen des Werkstücks (10), b) wenigstens eine Transporteinrichtung (16) zum Transportieren der Greifeinrichtung oder wenigstens einer Trägereinrichtung (4), an der die Greifeinrichtung befestigt oder befestigbar ist, c) wenigstens einen Rotationsantrieb (8) zum Drehen der Greifeinrichtung um eine durch die Greifeinrichtung verlaufende Drehachse und/oder zum Drehen wenigstens eines der Greifelemente um eine durch das Greifelement verlaufende Drehachse, d) wobei die Greifeinrichtung oder die wenigstens eine Trägereinrichtung, an der die Greifeinrichtung befestigt oder befestigbar ist, einerseits und die Transporteinrichtung andererseits in einem flexiblen Zu stand miteinander flexibel verbunden sind und in einem starren Zu stand, zumindest in einer Raumrichtung und/oder in jeder Drehstellung der Greifeinrichtung und/oder des oder der Greifelemente, im Wesentlichen miteinander starr verbunden sind oder zueinander starr gestellt sind.
摘要:
The invention relates to a feed mechanism for a forming device, especially a cold forming device such as a rotary swaging device in which a work piece (2) to be processed is movable by means of a reducing device (20). The reducing device (20) contains tool segments (22a-22d) which process the work piece (2). Said tool segments are periodically movable with a working frequency from a closed position to an open position. In the closed position, the tool segments (22a-22d) are in working contact with the work piece (2) which is to be processed. According to the invention, a sensor unit (30) is provided which can determine the position of the tool segments (22a-22d) of the reducing device (20). The sensor unit (30) generates a sensor signal (S) which characterizes the position of the tool segments (22a-22d) and can be fed to an evaluating unit (40). The evaluating unit (40) generates a control signal (V) which controls the feed mechanism (10), said control signal being independent of the sensor signal (S) fed to said evaluating unit. The feed mechanism (10) can be controlled by the control signal (V) such that a minimal feed can be generated during the closed position of the tool segments (22a-22d) and a maximum feed can be generated during the open position of the tool segments (22a-22d).