Abstract: A swaging machine is provided with connecting rod-like swaging hammers, which are driven by eccentrics and radially guided in a machine frame with respect to the axis of the eccentric shaft and for a driving connection are provided at that end which faces the eccentric with a sliding surface in sliding contact with a slide ring that surrounds and is rotatably mounted on the eccentric. A particularly simple design of the machine is achieved in that radially inner end of the hammer and the slide ring are merely non-positively coupled and a compression spring means supported against the machine frame apply pressure to the swaging hammer and urge the sliding surface at the radially inner end of the hammer against the slide ring.

Abstract: A method and apparatus for supporting and retaining a workpiece on a work-supporting deck for machining. The work-supporting deck includes vacuum aspirators each having a lifting ram formed with an axial suction bore and a suction cup carried on top of the lifting ram and communicating with the suction bore. An actuator is connected to each lifting ram and individually operable to move the associated lifting ram along a vertical axis. A clamping device releasably clamps onto each of the lifting rams. The actuator moves the clamped clamping device and lifting ram along a displacement path parallel to the vertical or any other axis.

Abstract: A simple, robust and rationally operable device for tilting rolled stock comprises a tilting head comprising a gripping device for the rolled stock, which defines a tilting axis, and a first drive for rotating the tilting head about a tilting head axis extending parallel to the tilting axis to adjust the tilting head in respective tilted positions. A lifting device supports the tilting head, and a second drive is arranged to raise and lower the lifting device to adjust the lifting device in respective lifting positions. A carriage supports the lifting device, and a third drive is arranged to displace the carriage transversely to the tilting axis to adjust the carriage in respective transverse positions. A numerical control is connected to the first, second and third drives and is arranged to receive control signal components respectively corresponding to the respective tilted, lifting and transverse positions to control the drives in response thereto to adjust the tilting of the rolled stock.

Abstract: For rationally preparing and laying tape material strips, an exchangeable cassette is provided which is selectively insertable in a cutting station and a laying head. The cassette comprises two rotatable roll holders for a delivery roll from which tape material carried on a support layer is unreeled in the cutting station until the delivery roll is empty and a storage roll on which the support layer carrying cut tape material pieces is wound. The rotatable roll holders in the cutting station and the laying head and holders for the delivery and storage rolls are arranged to form a plug connection.

Abstract: A work-supporting deck for use in machine tools for processing flat material comprises vacuum aspirators, which serve to support and retain a workpiece and carry suction cups, which are adjustable in height by actuators.To provide economical means for reliably retaining the workpieces substantially independently of its shape and size, a multiplicity of vacuum aspirators are provided, which are arranged in rows and columns and are connected each to an individually operable actuator for moving the suction cup between an inactive lower position and an active upper position.

Abstract: In controlling the passage of rolled stock under little longitudinal tensile stress through a continuous rolling mill by secondary-controlled hydrostatic drives for the individual rolling stands, the rotary speeds of the hydromotors associated with the drives are controlled by adjusting their displacement volumes. To obtain a rational and dependable control method, at the beginning of the passage of the stock, all but one of the rotary speed controls for the hydromotors belonging to the stands through which the stock has passed and the stand through which the stock passes next as the passage of the stock through the stands proceeds are consecutively interrupted during the consecutive passing of the stock through the rolling stands and, therefore, at any time only the hydromotor of one of the stands, the guiding stand, is operated with an adjustable displacement volume for controlling the rotary speed at least as long as the stock passes through all the stands.

Abstract: The invention relates to an apparatus for cutting a workpiece made of a polymer. The apparatus combines a cutting tool operable to perform a feed movement along a desired line of cut relative to a portion of the workpiece to be cut, the cutting tool includes a cutter blade subjected to ultrasonic vibration as it cuts the portion of the workpiece, with a thermal control arranged to maintain the portion of the workpiece at a pre-selected temperature.

Abstract: Method of cutting a three-dimensional shaped piece of a material having large pores out of a block by trimming the block with adjacent cuts of a predetermined width guided along planes extending tangentially to the surface of the shaped piece whereby scrap of the material is produced, and cutting kerfs into the scrap no later than the trimming along planes extending radially relative to the shaped piece surface and longitudinally substantially parallel to each other, the cutting planes being spaced from each other at the shaped piece surface a maximum distance corresponding to the predetermined width of the adjacent cuts. For this purpose, an ultrasound assembly may be used, which comprises a knife which has a shaft portion extending in the direction of vibration of the knife and a cutting portion attached to the shaft portion and extending transversely to the direction of vibration, the shaft portion and the cutting portion having cutting edges.

Abstract: A machine tool for processing platelike workpieces, particularly for machining the contours of superimposed sheet metal elements, comprises a work-supporting deck having a supporting surface and workpiece-fixing means, and a tool unit, which is mounted on a tool carriage and is movable over the supporting surface, wherein a holding-down device is provided, which is movable over the supporting surface in unison with the tool unit and comprises a holding-down shoe, which is adapted to be forced against the top surface of the workpiece to hold the workpiece in position close to the location at which the workpiece is being processed.

Abstract: A machine tool for processing flat stock comprises a work table having a processing surface, which can preferably be subjected to a vacuum, and a tool carriage, which is movable along the processing surface. A feeder is associated with the work table at one end thereof. In order to provide such a machine tool which involves a relatively small structural expenditure and distinguishes by an economical mode of operation, the work table is supplemented toward the feeder by a receiving table having a receiving surface of the work table, and the machine table composed of the work table and the receiving table supports two pallets, which are reciprocable between positions on the work table and the receiving table and in alternation constitute the processing surface of the work table and the receiving surface of the receiving table.

Abstract: An apparatus for trimming three-dimensional workpieces made, e.g., of plastic comprises a bottom platen for supporting the workpieces and a cutter, which is movable relative to the bottom platen along a line of cut. To permit an automatic trimming by means of an inserted-tooth cutter, the bottom platen extends across the line of cut to support also that portion of the workpiece which is to be trimmed off. The bottom platen has a top surface for supporting the workpiece and is formed with a groove extending along the line of cut.

Abstract: An apparatus for processing workpieces, comprises a fixing deck, which has a supporting surface and is provided with fixing device, and a numerically controlled tool unit, which is movable over the supporting surface. In order to effect a reliable fixing of the workpieces by a simple and effective method, the fixing device comprises at least one holding-down unit, which includes a holding-down carriage, which is movable over the supporting surface, and a power-operable holding-down finger, which is operable at selectable locations, and that the carriage moving device and finger actuating device are adapted to be controlled in dependence on the control of the tool unit.

Abstract: A method of centering and thus balancing workpieces to be machined only in part comprises a provision of centering bores in and faces of the workpiece and/or a circular machining of peripheral surfaces on which the workpiece is adapted to the gripped. Before the workpiece is machined it is repositioned so that the rotary unbalance of the workpiece is reduced in that the position and/or mass distribution of the workpiece relative to its axis of rotation is changed. The workpiece is subsequently provided with the centering bores and/or with the surfaces to be gripped, which define the balanced and centered position of the workpiece and the associated axis of rotation.

Abstract: A steady is coupled to a longitudinal slide and comprises a driven chuck. A milling tool is carried by a tool slide, which is slidably mounted on the longitudinal slide for a transverse movement derived from the rotation of the workpiece. To prevent a sagging or twisting of the workpiece or inaccuracies resulting from thermal expansion and also to eliminate the need for complicated driven chucks in workpiece carriers and to enable a milling of cross-sections to very close tolerances, two workpiece carriers are provided with non-driven workpiece supports whereas drive means for rotating the workpiece are associated only with the chuck of the steady. The control of the transverse movement of the tool slide is derived from the rotation of the chuck or of the means for rotating the same.

Abstract: In a process of milling a multiple-throw crankshaft comprising mainshaft portions and crankpins in alternation, two outer crankpins of three axially consecutive crankpins are milled at the same time while the crankshaft is supported at its ends and at the mainshaft portions which connect said three crankpins.

Abstract: A disc-shaped cutter body (1; 101; 201) is provided with a multiplicity of tooth plates (4; 104; 204, 204a), which engage suitable backing and end-supporting surfaces (5, 6, 7; 105, 106, 107, 205, 205a, 206, 206a, 207, 207a) of tooth holders (3; 103; 203) inserted in recesses formed by radial grooves (2; 102; 202) in the cutter body. Each tooth plate is clamped between a tooth holder and a head portion (9; 109; 209a, 209b) of an elongated holding-back member (8; 108; 208), which has a foot portion (10; 110; 210) that is disposed in the recess of the cutter body and bears on said tooth holder.

Abstract: Known machines for milling a crankshaft comprise a longitudinal carriage movable in a first direction, a tool carriage movable on the longitudinal carriage for reciprocation relative thereto in a direction transverse to the first direction, a cutter head mounted on the tool carriage for rotation and having a cutting tool with inwardly directed cutting edge extending along a cutting circle and a chuck supporting a workpiece for rotation about the same axis as the cutter head and surrounded by the cutting circle.

Abstract: First and second gripping heads consisting of a manipulator and a holder-up, respectively, are disposed on opposite sides of a swaging box. First and second sleeves are rotatably mounted in said first and second gripping heads, respectively and aligned on a horizontal axis which extends through said swaging box. A mandrel is non-rotatably and axially immovably mounted in said first sleeve and adapted to carry a tubular workpiece surrounding said mandrel. First and second abutments are carried by said first and second gripping sleeves, respectively, and have first and second annular gripping surfaces, respectively. Axial drive means serve to move said first gripping head along said horizontal axis toward said swaging box and to simultaneously move said second gripping head in the same direction.

Abstract: A carrying drum has an end face and is adapted to be rotatably mounted and to be rotationaly driven. An inserted-tooth cutter comprises an adapter ring flanged to said end face and provided with at least two retainers, which are axially spaced from each other and from said end face, and with radial through openings between adjacent ones of said retainers and between said retainers and said end face. Said inserted-tooth cutter further comprises at least two axially spaced apart, coaxial toothholders, which are adapted to surround said workpiece and are secured to respective ones of said retainers and carry teeth having radially inwardly facing cutting edges.