Abstract: A forming device for cup-shaped hollow bodies having a machine frame, a drive device, a workpiece rotary table for accommodating hollow bodies and a tool holder for accommodating processing tools, wherein the workpiece rotary table and the tool holder face one another and can be turned about a rotational axis in relation to one another and can be linearly moved in relation to one another along the rotational axis, and wherein the drive device comprises first drive means for providing a rotary step movement and second drive means for providing a cyclical linear movement between workpiece rotary table and tool holder to enable the hollow bodies to be formed by means of the processing tools in a plurality of consecutive processing steps. The second drive means has a stroke adjustment arrangement which is designed for adjusting a working stroke of the cyclical linear movement as a function of a control signal of a control device and/or for continuously variably adjusting the working stroke.

Abstract: A pusher 30 is composed of a pusher base 31 and a pressing body 32 attached to the pusher base 31 in a removable way. Specifically, a base portion of the pressing body 32 is provided with a flange portion 321, and the pusher base 31 is provided with a plate 33 having a U-shape when seen two-dimensionally. By sliding the pressing body 32 with respect to the pusher base 31 with the flange portion 321 of the pressing body 32 supported by the plate 33, the pressing body 32 can be attached to and removed from the pusher 30 without using any tools.

Abstract: A drive for operating a movable part with respect to a fixed part includes: a driving member having a linear shape and being made of a shape-memory alloy; and a crimp terminal for holding one end of the driving member at the fixed part or the movable part. At least a part to which the driving member is crimped in the crimp terminal is made of stainless steel.

Abstract: A machine for producing articles of sheet material, having a conveyor with powered rollers for feeding blanks along a path; pressure devices for holding the blanks in contact with the powered rollers; and operating devices which interact with the blanks to perform operations, in particular folding and gluing operations, on the blanks as the blanks travel along the path. The conveyor has a number of drive members arranged along the path, and to which the pressure devices are connectable by universal transmission assemblies.

Abstract: A mold clamping device for a pressing machine which bends a plate material inserted between upper and lower molds. The mold clamping device comprises a main frame (1) of integral structure, a holding ram (13) mounted on the upper half of the mainframe (1) and for supporting the upper mold (8) for vertical movement, a pair of arch-type thick springs (6) vertically mounted on the upper half of the main frame, and a crank mechanism (10) with which the upper end of each of the arch-type thick spring is connected through a crank pin (17). The crank mechanism creates a rotational force at a position near the dead center of the crank pins (17). This rotational force resiliently deforms the arch-type thick springs (6) which in turn create a resilient force for pressing the upper mold (8) against the lower mold (9). This provides an accurate and stable clamping force between the upper and lower molds.

Abstract: A tool accelerator is disclosed that is cooperatively disposed in a stamping and forming machine that is adapted to operate on a strip of relatively hard material. The tool accelerator generally includes a trigger punch having a proximal end and a distal end. A tool is coupled to the proximal end of the trigger punch and is adapted to perform work on a strip of relatively hard material. A spring is disposed between a portion of the stamping and forming machine and the proximal end of the trigger punch, the spring being capable of being compressed by a predetermined amount in response engagement of the distal end of the trigger punch with the strip of relatively hard material.

Abstract: A machine (144) for crimping terminals onto conductors, is disclosed which automatically compensate for different conductor density and terminal sizes for maintaining a desired crimp height for each different combination of sizes. The machine (144) includes a compensating unit (146) that is interposed within the drive mechanism to automatically alter an otherwise fixed distance (162) in the drive mechanism. The compensating unit (146), when combined with the ram, includes a pair of opposed resilient beams (158, 160) that deflect when sufficient axial loading is applied to the ram during the crimping operation. This deflection results in the altering of the fixed distance (162) and, therefore, the altering of the shut height (164) of the machine (144).

Abstract: In a stamping press, an outer slide lowers an upper holding ring toward a lower holding ring for pinching the edge of a piece part for maintaining the piece part in fixed position between a lower die and a moveable upper die. Further downward displacement of the upper holding ring also moves the lower holding ring downward, stretching the piece part over the lower die. Striking of a lower die support by the lower holding ring is cushioned by gas-filled cylinders. With the stretched piece part maintained in fixed position on the lower die by the upper and lower holding rings, an inner slide then lowers the upper die toward the lower die for stamping the piece part. A drive mechanism lowers the outer and inner slides via respective pluralities of pull rods coupled to the slides. With the upper holding ring traveling at high speed at mid-stroke when it strikes the lower holding ring, a large instantaneous and momentary impact force is experienced which causes damage to press components over time.

Abstract: Force transmitting coupling (44) for transmitting force from an actuator (16) which oscillates along an arcuate path to a ram block (12) which reciprocates along a rectilinear path comprises a flexible member (50) coupling which is connected to the actuator (16) by a lost motion connection (90, 94) and which is against the ram block (12). The flexible member (50) is supported intermediate its ends in a manner such that it can flex by a predetermined amount but not more than the predetermined amount. When the ram block (12) is pushed from a retracted position to a forward position, the flexible member is placed in compression and flexes by only the predetermined amount. The force transmitted to the ram block is applied to the axis of the ram block.

Abstract: A rivet setting apparatus having a first driver with a rivet deforming piece and an opposite second driver with a rivet deforming piece. One of the rivet deforming pieces has an outer housing with a deforming seat in its front end and an aperture into the deforming seat. Located in the aperture is a movable ram that can extend into the deforming seat. The ram and outer housing are movable at different rates and distances from home positions to deform a rivet.

Abstract: A machine for straightening cylindrical workpieces such as motor armature assemblies having diametrically enlarged intermediate sections and reduced diameter opposite end sections coaxial with the intermediate sections. The machine has first and second separable bearing units aligned axially and spaced apart axially for engagement and support of said reduced diameter opposite end sections of a workpiece. In one embodiment, at least one end section projects axially and with the workpiece rotating, a radially movable deflection device engages the projecting end section of the workpiece, bends and slowly returns the same to axial alignment. In a second embodiment, both end sections of the shaft or reduced diameter portion are deflected and straightened simultaneously. In a third embodiment the intermediate section is bent out of axial alignment and slowly returned for straightening relative to the opposite end sections.

Abstract: A resilient tool support for mounting either an upper or lower tooling member on a press ram or stationary press bed for performing a variety of operations on easy open can ends. The resilient tool support comprises a metallic member having a longitudinal central bore with vertically spaced overlying pairs of diametrically opposed angularly oriented segmental slots extending inwardly through the sides of the resilient tool support block reaching the central bore. The resilient tool support may be positioned between either the press ram and the upper tooling member, or the stationary press bed and the lower tooling member. The resilient tool support is designed to yield and absorb excessive pressure of the press ram as it performs the various operations on the easy open can ends.

Abstract: Crimping press comprises an anvil and a die which is movable towards and away from the anvil. The anvil is moved by a rotating shaft having a crank-type coupling to the die. The shaft is capable of limited movement in the direction of movement of the die towards the anvil. The shaft is supported against such movement by a yieldable shaft support that is calibrated to resiliently yield upon development of a predetermined reaction force in the die during the final stages of crimping. When a terminal is crimped onto a relatively small diameter wire, the shaft will not be moved at all or will be moved by only a slight amount if the predetermined force is reached. When a terminal is crimped onto a larger diameter wire, the predetermined reaction force will be developed before the die reaches the limit of its travel towards the anvil and the shaft will move away from the anvil to accommodate the remaining movement of the crank pin.

Abstract: Apparatus is described which includes force-producing and force-transmitting means. The force-transmitting means comprises resilient plastic. The apparatus of the invention is especially useful in the straightening or shaping of metal, e.g., vehicle bodies and frames.

Abstract: The fastener installation head and bolster assembly of this invention is particularly adapted to assure constant installation pressure for fasteners installed in a reciprocating press die, such as pierce and clinch nuts. The fastener installation head includes a plunger supported on one die platen, a movable housing member which receives the fasteners to be installed, reciprocably supported on the plunger, and a die member supported on the opposed die platen, opposite the movable housing plunger passage. The bolster assembly includes a fluid pressure ram operably supporting the plunger between the plunger and the die platen having a source of constant fluid pressure and a plunger release which permits the plunger to recede when the press tonage exceeds the preferred fastener installation force.

Abstract: A rolling mill is provided in which the stands can be angularly displaced about the longitudinal axis of the work material so that the drive shaft slopes upwardly or downwardly from the associated output spindle of the drive transmission. This enables rolls of ideal diameter (D.sub.i) larger or smaller by up to 20 mm than the rated ideal diameter for that stand location to be used. A flexible coupling compensates for the angular misalignment of up to 2.degree. between the drive shaft and the output spindle.

Abstract: An apparatus for manufacturing fittings in one press stroke comprising a bed, a lower die mounted on the bed, the lower die having formed therein a stepped bore adapted to receive a blank to be worked, a hollow knockout slidable in the stepped bore, a slide, a holder fixedly secured to the slide, a cylindrical member slidably fitted in the holder, an upper die mounted in the cylindrical member and having a bore formed therein, a punch fixedly secured to the slide and inserted in the bore of the upper die, a sleeve mounted on and around the punch, a cushion cylinder for biasing the upper die downwards, and an elastomer disposed around the sleeve between the holder and the upper die for biasing the latter downwards after the upper die is lowered on the lower die.

Abstract: A pre-loading and energy absorbing mechanism in a press having a ram and a primary overload release comprising a preloaded spring assembly interposed between connecting rod pin and the ram and the connecting means to the tooling to take up excessive loads which develop due to thermal expansion or improper positioning of the tooling or kiss-block or an article to be formed or because of malfunction in the tooling, and a secondary higher overload release comprising a pre-loaded spring assembly interposed between the ram supporting head or the base of a press and the connecting structure therebetween, the head/base being movable away from and back to a fixed position in a connecting structure.