The device for partially embossing deep-drawn or planar seal blanks that are punched out from a foil strip comprises an embossing die and an adjacent punch. The embossing die in turn comprises a female mould and a male mould, the male mould comprising three-dimensional elements that are arranged in an outer region and in a central region and the male mould and the female mould, in their spatial position, being mounted so as to be rotatable about an axis A that is substantially perpendicular to the foil strip.

A race for a mechanical clutch assembly may be formed from multiple race layers that assembled from pluralities of stamped arcuate segments. First and second race layers may have the same shape when their arcuate segments are assembled are assembled. The arcuate segments of the first race layer may be identical to each other, and the arcuate segments of the second race layer may be identical to each other, but the first layer arcuate segments are not identical to the second layer arcuate segments. Interlocking joints between the first layer arcuate segments are not aligned with interlocking joints between the second layer arcuate segments when the race layers are joined together and aligned for use in the mechanical clutch assembly.

A stacking system for aligning and stacking stamped sheet metal parts is provided. The stacking system includes a frame configured to coordinate a plurality of sub-systems including a parts catcher, receiving head including a plurality of alignment cylinders, and a set of elevating tables on a shuttle platform. Parts are received by the catcher from a conveyor belt and transported to a receiving head for alignment to a targeted position. After the formed part is aligned to the stack, the lift table is lowered such that space is available for another part to be aligned. After a predetermined number of formed parts has been stacked, a table shuttle will slide the lift table to an unloading position accessible by a fork truck.

Two-dimensional material sheets are stacked in a stacking device. One of a printing machine and a coating machine has at least one stacking unit having a stacking space. Material sheets are conveyed, via the stacking space of the stacking unit, comprised by the stacking device, and are deposited into a stack on top of one another on a loading aid. For two different production runs, the stacks are formed on the loading aid with the four corners of their areas in mutually different relative orientations with respect to the loading aid, which is arranged, in each case, in the stacking space of the stacking unit and is larger-format compared with the material sheets to be deposited in each case. For the two production runs, in each case, one loading aid of the same format is positioned on different positions, as seen in projection in the horizontal, in the stacking space of the stacking unit.

Two-dimensional material sheets are stacked in a stacking device. One of a printing machine and a coating machine has at least one stacking unit having a stacking space. Material sheets are conveyed, via the stacking space of the stacking unit, comprised by the stacking device, and are deposited into a stack on top of one another on a loading aid. For two different production runs, the stacks are formed on the loading aid with the four corners of their areas in mutually different relative orientations with respect to the loading aid, which is arranged, in each case, in the stacking space of the stacking unit and is larger-format compared with the material sheets to be deposited in each case. For the two production runs, in each case, one loading aid of the same format is positioned on different positions, as seen in projection in the horizontal, in the stacking space of the stacking unit.

A method for operating a servo motor (10) driven turning station (5, 6, 7) of a stacking tool for a punch press including the following steps: determining a target turning acceleration curve of the turning station (5, 6, 7) in the acceleration phase (A) of the turning increment (D); carrying out a reference acceleration run of the turning station (5, 6, 7) while providing a certain reference drive torque by the servo motor (10) or while supplying the servo motor (10) with a certain reference supply current; determining during the reference acceleration run the reference angular velocity (ω.sub.ref) of the turning station (5, 6, 7) when a certain turning angle is reached; determining from the target turning acceleration curve the target angular velocity (ω.sub.soll), which should be present when a certain turning angle shall be present; calculating a target drive torque of the servo motor, at which the target angular velocity (ω.sub.soll) results, from the relationship, known from the reference acceleration run, between the reference angular velocity (ω.sub.ref) and the drive torque of the servo motor (10); and accelerating the turning station (5, 6, 7) with the servo motor (10) in the acceleration phase (A) of the turning increment (D) while providing the target drive torque by the servo motor (10).

A method for operating a servo motor (10) driven turning station (5, 6, 7) of a stacking tool for a punch press including the following steps: determining a target turning acceleration curve of the turning station (5, 6, 7) in the acceleration phase (A) of the turning increment (D); carrying out a reference acceleration run of the turning station (5, 6, 7) while providing a certain reference drive torque by the servo motor (10) or while supplying the servo motor (10) with a certain reference supply current; determining during the reference acceleration run the reference angular velocity (ω.sub.ref) of the turning station (5, 6, 7) when a certain turning angle is reached; determining from the target turning acceleration curve the target angular velocity (ω.sub.soll), which should be present when a certain turning angle shall be present; calculating a target drive torque of the servo motor, at which the target angular velocity (ω.sub.soll) results, from the relationship, known from the reference acceleration run, between the reference angular velocity (ω.sub.ref) and the drive torque of the servo motor (10); and accelerating the turning station (5, 6, 7) with the servo motor (10) in the acceleration phase (A) of the turning increment (D) while providing the target drive torque by the servo motor (10).

A method for stacking sheet metal parts composed of an electrical steel strip or sheet in order to form lamination stacks, each with a stack height within a tolerance range from a predetermined desired stack height, including stacking the sheet metal parts, which have a hot-melt adhesive varnish layer on at least one flat side, preheating the hot-melt adhesive varnish layers and putting the hot-melt adhesive varnish layers under pressure, then determining the stack height of the individual lamination stacks and adjusting the stack height if necessary, and then finally heating the hot-melt adhesive varnish layers.

A method for stacking sheet metal parts composed of an electrical steel strip or sheet in order to form lamination stacks, each with a stack height within a tolerance range from a predetermined desired stack height, including stacking the sheet metal parts, which have a hot-melt adhesive varnish layer on at least one flat side, preheating the hot-melt adhesive varnish layers and putting the hot-melt adhesive varnish layers under pressure, then determining the stack height of the individual lamination stacks and adjusting the stack height if necessary, and then finally heating the hot-melt adhesive varnish layers.

A method and a system are disclosed for making an article of manufacture from a blank defining an internal opening. A stack of blanks are aligned and the internal openings of the blanks in the stack of blanks are machined by a rotary cutting tool to a finished dimension. The blanks are clamped together before machining in a numerically controlled machine tool. The blanks are subsequently formed individually in a sheet metal forming operation in which the inner perimeter of the internal openings is expanded as the blank is formed.