摘要:
A laser cutting machine (1) for metal sheets (2), in which a laser cutting station (5) is arranged between a sheet loading store (26) and an unloading store (27) arranged below the work surface (4), an intermediate portion (17) of which is arranged at the laser cutting station (5) and is provided with a door (18) that may be opened in order to unload the cut parts of sheet (2), a first portion (14) may be moved from and towards a closed position of the un loading store (26), and a second portion (15) may be moved from and towards a closed position of the unloading store (27); an extraction device (42) being provided to selectively lift the metal sheets (2) from the loading store (26) at least partially above the work surface (4) when the first portion (14) is arranged in an open position.
摘要:
A box assembly (10) for a punch press. The box assembly (10) includes, in turn, a container (11) fixed to a base of the punch press, a die-holder box (15) adapted to accommodate an interchangeable die (16), and a device (17) for lifting/lowering the die-holder box (15) itself. The box assembly (10) is characterized in that the device (17) for lifting/lowering the die-holder box (15) includes a first cam (19) which is integral with a cam-holder bushing (18) and a second cam (25) which is integral with the die-holder box (15). The first cam (19) rests in use on the second cam (25). The invention further relates to a method for lifting, rotating and lowering the die-holder box (15) adapted to contain an interchangeable die (16).
摘要:
The installation includes a machine tool (3) with a laser work unit (57) and an assembly (4) for storing a plurality of pallets (7) each holding a metal sheet (2). The machine (3) includes a work frame (11) with at least two first shelves (12) arranged one above the other each for housing a respective pallet (7). The assembly (4) includes a store (5) having a plurality of second shelves (6), one above the other, each housing a pallet (7) and a device (13) for transferring the pallets (7) from the store (5) to the work frame (11) and back. The work unit (57) first carries out the work on the sheet (2) in the pallet (7) housed in the highest first shelf (12) while the device (13) transfers a second pallet (7) to the lower first shelf (12) and then, once the first pallet (7) has been removed from the work frame (11) carries out the work on the sheet (2) held by the second pallet (7).
摘要:
A punching machine (100) having: at least one punchholder (2) in turn having a channel (14a, 10, 8a, 4a, 4b) for feeding a lubricant/compressed air mixture to a punching region (ZP) on a metal sheet (34); piping means (51) for connecting the channel (14a, 10, 8a, 4a, 4b) to a source (50) of atomized lubricant; and on/off valve means (52) for selectively permitting or preventing supply of the atomized lubricant to the piping means (51) and the channel (14a, 10, 8a, 4a, 4b); the valve means (52) being controlled, via a device (41), by the position in space of an element (2), which position in space is detected by means of a probe (36); and the punching machine (100) being characterized in that the probe (36) detects the vertical position of the punchholder (2).
摘要:
A drive device for rotating a machine tool table, the device having an armature (6), of a linear electric motor (4), located tangentially along the whole lateral surface of a circular table (2) and connected by its own lateral surface to the table; and an inductor (5), of the linear electric motor (4), located substantially facing at least part of the armature (6).
摘要:
A machine tool for working sheet metal is described. The principal characteristic of the present invention lies in the fact that it comprises electronic means (5) operable to control the adjustment of the stroke of a striker (6) which can strike a pin (11) supporting a tool (12) for punching or nibbling a metal sheet.
摘要:
A box assembly (10) for a punch press. The box assembly (10) includes, in turn, a container (11) fixed to a base of the punch press, a die-holder box (15) adapted to accommodate an interchangeable die (16), and a device (17) for lifting/lowering the die-holder box (15) itself. The box assembly (10) is characterized in that the device (17) for lifting/lowering the die-holder box (15) includes a first cam (19) which is integral with a cam-holder bushing (18) and a second cam (25) which is integral with the die-holder box (15). The first cam (19) rests in use on the second cam (25). The invention further relates to a method for lifting, rotating and lowering the die-holder box (15) adapted to contain an interchangeable die (16).
摘要:
Sheet metal or similar is punched by means of a ram (6), which is moved in a straight reciprocating movement defined by a down stroke to punch at least one metal sheet, and by a return stroke, and has a first member (9) moved with a given law of motion during the down stroke and the return stroke, and a second member (19) which is connected in sliding manner to the first member (9), is brought into contact with a punch to punch the metal sheet, and is moved, during the down stroke, with substantially the same law of motion as the first member (9) when the metal sheet produces a resisting force below a given value, and with a law of motion different from that of the first member (9) when the metal sheet produces a resisting force at least equal to the given value.