A bending and molding mechanism includes two bases, wherein the bases are provided with a transverse sliding rail, two transverse sliding bases are disposed on the transverse sliding rail in a sliding manner, the base is provided with a transverse driving device driving the transverse sliding bases, the base is provided with a central clamping device, the transverse sliding bases are provided with a longitudinal sliding rail, the longitudinal sliding rail is provided with a longitudinal sliding base, the transverse sliding bases are provided with a longitudinal driving device driving the longitudinal sliding base to slide, the longitudinal sliding base is provided with a bending and molding device, one side of the transverse sliding base at the left side is provided with a left clamping device, and one side of the transverse sliding base at the right side is provided with a right clamping device.

An alignment apparatus is capable of suppressing widening of legs of hairpin-shaped heat-exchanger tubes and aligning the hairpin-shaped heat-exchanger tubes in the horizontal direction at a regular pitch. The alignment apparatus includes: a plurality of outer guide plates that have rollers, which contact upstream sides of legs of the hairpin-shaped heat-exchanger tubes that have been stopped by a stopper apparatus, and that contact outer side surfaces of the legs; a horizontal movement apparatus that moves the outer guide plates in a horizontal direction; an up-down movement apparatus that moves the outer guide plates in an up-down direction; and a control unit that drives the horizontal movement apparatus to move the outer guide plates a predetermined distance toward an insertion position, and then drives the up-down movement apparatus to raise the outer guide plates by a predetermined distance to change an orientation of the hairpin-shaped heat-exchanger tubes to the horizontal direction.

A compact stock guide assembly and method for metal forming dies includes a stock guide that includes a fastener that secures the stock guide to the die through a central aperture in the stock guide. The stock guide has a locating boss that can be received in a pocket in the die that has been bored and tapped to receive the fastener.

A hydraulic roll bending machine and method includes loading a plate between top and bottom rollers, receiving a user input indicative of a desired plate radius, calculating a pre-bend radius for the plate based on the desired plate radius and information from the material database, providing a bending signal to the actuator to position the at least one bending roller relative to the top and bottom rollers based on the pre-bend radius, providing a feed signal to advance a leading portion of the plate against the at least one bending roller, determining an actual pre-bend radius of the leading portion of the plate, and calculating an adjustment to the material database based on a difference between the pre-bend radius and the actual pre-bend radius.

A material rod feeding device for feeding material rods to a machine tool, includes a magazine for stocking the material rods and a guide means into which material rods to be processed can be fed from the magazine, one at a time. The feeding direction of a material rod from the magazine into the guide means, is transversely to the longitudinal axis of the material rod in the guide means. The guide means includes a support leg and an abutment leg for providing a variably modifiable receiving channel. The support leg provides a support surface of the receiving channel that is inclined in the feeding direction and relative to the horizontal. The abutment leg is movable along the inclination relative to the support leg, so that the variably modifiable receiving channel is formed between the two legs, into which the material rod to be processed can be fed onto the support surface. The support leg together with the abutment leg is vertically movable as a whole.

An apparatus for handling bars includes a store provided with one or more containing elements, with a respective bundle or group of bars positioned in each. A feed station is located downstream of the store and configured to transfer the bars to a destination station. A removal device of the bars is associated with the feed station and is configured to remove the bars from at least one containing element of the store and transfer them onto the feed station. Movement means of the store, suitable to take at least one of said containing elements into correspondence with the removal device, are also included.

Apparatus to bend bars, comprising: a bending unit (35) of at least one bar (B, B) and a drawing unit (46) configured to define at least a direction of feed (A) of the bar (B, B) to the bending unit (35). The bending apparatus is provided with: a support plane (11) on which the bars (B, B) to be bent are put; a removal unit (19) to remove at least one bar (B, B) from the support plane (11), a feed unit (33) configured to receive the bar (B, B) removed by the removal unit (19) and to transfer it to the drawing unit (46).

A machine for bending oblong elements, preferably metal, includes a feed unit configured to feed at least one of the oblong elements along a longitudinal axis. A bending device is located downstream of the feed unit and a curving unit is disposed downstream of the bending device and is configured to curve the oblong element along part of its oblong development.

Unit for drawing metal products including at least one motorized roller configured to support and move at least one oblong metal product along an axis of feed, and at least two contrast rollers configured to rotate idly about respective axes of rotation and disposed opposite said at least one motorized roller. The disclosure also concerns a method to draw oblong metal products.

A bending device according to one aspect of the present invention includes a track device which linearly extends in a predetermined direction, first and second bases placed on the track device and movable on the track device, a first robot mounted on the first base, a second robot mounted on the second base, and a bending mechanism which is disposed at each end of the first and second robots and grips and bends the workpiece. The first robot is a multi-articulated robot including a joint rotatable around an axis vertical to the first base and a joint rotatable around an axis parallel to the axial direction of the workpiece. The second robot is a multi-articulated robot including a joint rotatable around an axis vertical to the second base and a joint rotatable around an axis parallel to the axial direction of the workpiece.