A mandrel assembly for a tube bending machine has a mandrel body, a mandrel rod, a series of articulation elements connected to one another and to the mandrel body through respective cylindrical or spherical hinges, and a network of lubricant transport channels formed through the mandrel body and communicating with a lubricant feed passage formed along the mandrel rod. The network of lubricant transport channels has a plurality of lubricant outlet ports arranged on the distal end or on a peripheral surface of the mandrel body. A plurality of through-holes extending along a longitudinal direction of the respective articulation element is formed through each of the articulation elements. The through-holes are configured to convey a lubricant to a front side of an extreme distal articulation element of the series of articulation elements. The extreme distal articulation element has a deflector element.
A processing machine (1) for bending tubular articles, preferentially tubular metal articles, is described comprising a support structure (2) extending along a first longitudinal axis (A), a processing group configured to bend the tubular article, an advancement group (3) movably coupled to the support structure (2) and configured to move the tubular article relative to the processing group and a support group (15) movably coupled to the support structure (2) and being configured to support a tie rod (12) extending toward and/or across the advancement group (3). The support group (15) is configured to move along the support structure (2) according to the movement of the advancement group (3). The processing machine also comprises a coupling group (16) coupling the support group (15) to the advancement group (3) and being configured such that a movement of the advancement group (3) along the support structure (2) results in a movement of the support group (15).
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B21F 23/00 - Feeding wire in wire-working machines or apparatus
B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
3.
PROCESSING MACHINE FOR PROCESSING TUBULAR ARTICLES
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B21F 23/00 - Feeding wire in wire-working machines or apparatus
B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
4.
METHOD OF BENDING AND BENDING MACHINE FOR THE EXECUTION OF A METHOD OF BENDING
A method for the bending of a tubular metal article comprising at least the following steps a) determining a bending sequence of the tubular metal article by means of a calculating unit, and b) bending the tubular metal article according to the bending sequence determined during the execution of the step a) is described. During the step a) at least the following sub-steps are performed by the calculating unit: a1) defining an initial configuration and a final configuration of the tubular metal article which differs from the initial configuration by a number N of bends, a2) determining one or more explorative bending sequences as a function of the initial configuration and the final configuration, each explorative bending sequence having a cost and a3) proposing at least one or more explorative bending sequences having minimal costs as the determined bending sequence.
B21D 7/12 - Bending rods, profiles, or tubes with programme control
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
5.
Bending method and bending machine for the execution of a bending method
A method of bending a metallic article comprising at least the following steps is described: a) executing a relative movement between a bending head having at least one bending group and the metallic article, and b) bending the metallic article by means of an activation of the bending group. During step b), at least a first actuation device actuates the bending group according to a respective motion profile and during the step a), at least a second actuation device actuates a relative movement between the bending head and the metallic article according to a respective motion profile. The method also comprises a step of preparing, during which a respective initial motion profile of the first actuation device and/or of the second actuation device is modified for obtaining the respective motion profile in function of a first parameter and of a second parameter.
B21D 7/02 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment
B21D 7/024 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member
6.
Housing for a Laser Processing Machine and Laser Processing Machine Having a Housing
A housing for a laser processing machine is described to treat work pieces. The housing comprises a dividing wall, which separates a first work space having a first length and a second work space having a second length from one another, a first entrance to allow access to the first work space, a second entrance to allow access to the second work space, a closing device, which is configured to selectively open and close the first entrance and the second entrance and a control unit, which is operatively connected to the closing device. The dividing wall is placeable in an operating position, which is variable among at least a first position, a second position and a third position. The control unit is configured to control the closing device as a function of the operating position of the dividing wall.
A housing for a laser processing machine is described comprising a dividing wall, which separates a first work space and a second work space, and a covering device, which is configured to selectively cover at least one between the first work space and the second work space. The covering device comprises at least a cover, which is controllable in an active configuration, in which the cover is configured to cover one between the first work space and the second work space and a guide system, which is configured to guide the cover so that the cover, when it is in the active configuration, comprises at least a main portion and an auxiliary portion extending from the main portion and being inclined relative to the main portion.
A housing for a laser processing machine is described comprising a dividing wall, which separates a first work space and a second work space, and a covering device, which is configured to selectively cover at least one between the first work space and the second work space. The covering device comprises at least a cover, which is controllable in an active configuration, in which the cover is configured to cover one between the first work space and the second work space and a guide system, which is configured to guide the cover so that the cover, when it is in the active configuration, comprises at least a main portion and an auxiliary portion extending from the main portion and being inclined relative to the main portion.
A method for the bending of a tubular metal article (2) comprising at least the following steps a) determining a bending sequence of the tubular metal article (2) by means of a calculating unit (12), and b) bending the tubular metal article (2) according to the bending sequence determined during the execution of the step a) is described. During the step a) at least the following sub-steps are performed by the calculating unit (12) : al) defining an initial configuration (20) and a final configuration (21) of the tubular metal article (2) which differs from the initial configuration (20) by a number N of bends, a2) determining one or more explorative bending sequences (22) as a function of the initial configuration (20) and the final configuration (21), each explorative bending sequence (22) having a cost (F) and a3) proposing at least one or more explorative bending sequences (22) having minimal costs as the determined bending sequence.
B21D 7/024 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member
B21D 7/12 - Bending rods, profiles, or tubes with programme control
B21F 1/00 - Bending wire other than coilingStraightening wire
G05B 17/00 - Systems involving the use of models or simulators of said systems
G05B 19/4061 - Avoiding collision or forbidden zones
10.
BENDING METHOD AND BENDING MACHINE FOR THE EXECUTION OF A BENDING METHOD
A method of bending a metallic article (2) comprising at least the following steps is described: a) executing a relative movement between a bending head (3) having at least one bending group (5) and the metallic article (2), and b) bending the metallic article (2) by means of an activation of the bending group (4). During step b), at least a first actuation device actuates the bending group (4) according to a respective motion profile (u (t)) and during the step a), at least a second actuation device actuates a relative movement between the bending head (3) and the metallic article (2) according to a respective motion profile (u (t)). The method also comprises a step of preparing, during which a respective initial motion profile of the first actuation device and/or of the second actuation device is modified for obtaining the respective motion profile (u (t)) in function of a first parameter (a) and of a second parameter (b).
B21F 1/00 - Bending wire other than coilingStraightening wire
B21D 7/024 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member
B21D 7/12 - Bending rods, profiles, or tubes with programme control
G05B 17/00 - Systems involving the use of models or simulators of said systems
11.
Apparatus for the orbital cutting and calibration of tubes
An apparatus for the orbital cutting and calibration of tubes is provided. The apparatus has a rotor having a central hole through which a tube to be cut is movable along its longitudinal axis, the rotor being drivable to rotate about a first axis of rotation coinciding in use with the longitudinal axis of the tube that is supplied to the apparatus. The apparatus has a cutting device having a first support body mounted radially movable on the rotor and a cutting tool carried by the first support body, and a calibration device having a second support body mounted to be radially movable on the rotor and a calibration tool carried by the second support body.
An apparatus (14) for the orbital cutting and calibration of tubes (T) is described, comprising: a rotor (18) having a central hole (20) through which the tube (T) to be cut is movable along its longitudinal axis, the rotor (18) being driveable to rotate about a first axis of rotation (x1) coinciding in use with the longitudinal axis of the tube (T) which is fed to the apparatus (14); a cutting device (22, 24) including a first support body (22) mounted radially movable on the rotor (18) and a cutting tool (24) carried by the first support body (22); and a calibration device (34, 36) including a second support body (34) mounted to be radially movable on the rotor (18) and a calibration tool (36) carried by the second support body (34).
B23B 3/26 - Turning-machines or devices with rotary tool heads the tools of which perform a radial movementRotary tool heads thereof
B23B 5/08 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathesCentreless turning
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
B23D 21/00 - Machines or devices for shearing or cutting tubes
B23D 21/04 - Tube-severing machines with rotating tool-carrier
An apparatus (14) for the orbital cutting and calibration of tubes (T) is described, comprising: a rotor (18) having a central hole (20) through which the tube (T) to be cut is movable along its longitudinal axis, the rotor (18) being driveable to rotate about a first axis of rotation (x1) coinciding in use with the longitudinal axis of the tube (T) which is fed to the apparatus (14); a cutting device (22, 24) including a first support body (22) mounted radially movable on the rotor (18) and a cutting tool (24) carried by the first support body (22); and a calibration device (34, 36) including a second support body (34) mounted to be radially movable on the rotor (18) and a calibration tool (36) carried by the second support body (34).
B23D 21/04 - Tube-severing machines with rotating tool-carrier
B23D 21/00 - Machines or devices for shearing or cutting tubes
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
B23B 3/26 - Turning-machines or devices with rotary tool heads the tools of which perform a radial movementRotary tool heads thereof
The machine comprises a working apparatus arranged to carry out the working operation on a tube, or a similar blank, and a tube feeding device arranged to feed the tube towards the working apparatus. The working apparatus and the tube feeding device comprise respective clamping members for clamping the tube being worked. According to the invention, at least one of the clamping members of the working apparatus or of the tube feeding device is provided with a displacement sensor arranged to detect and measure any movements of the tube relative to said clamping member while the tube is clamped by said clamping member during the working operation.
B21D 11/22 - Auxiliary equipment, e.g. positioning devices
B21C 51/00 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses
B21D 9/16 - Auxiliary equipment, e.g. machines for filling tubes with sand
15.
MACHINE FOR THE WORKING OF TUBES PROVIDED WITH A DEVICE FOR DETECTING ANY SLIPPAGE OF THE TUBE BEING WORKED
The machine (100) comprises a working apparatus (10, 14, 16) arranged to carry out the working operation on a tube (T), or a similar blank, and a tube feeding device (22) arranged to feed the tube (T) towards the working apparatus (10, 14, 16). The working apparatus (10, 14, 16) and the tube feeding device (22) comprise respective clamping members (14) for clamping the tube (T) being worked. According to the invention, at least one of the clamping members ( 14) of the working apparatus (10, 14, 16) or of the tube feeding device (22) is provided with a displacement sensor (24) arranged to detect and measure any movements of the tube (T) relative to said clamping member (14) while the tube (T) is clamped by said clamping member (14) during the working operation.
B21D 7/14 - Bending rods, profiles, or tubes combined with measuring of bends or lengths
B21D 7/16 - Auxiliary equipment, e.g. for heating or cooling of bends
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
16.
Apparatus for improving the quality of tube bending and method that uses such apparatus
An apparatus for improving the quality of tube bending; adapted to be used in bending machines and comprises a substantially longitudinally extended mandrel, adapted to be inserted into a tube to be bent and having a rigid portion and a flexible portion arranged in series, the latter comprising a series of mandrel segments connected by articulated joints; the apparatus also comprises at least one motion-sensitive sensor, which is integral with at least one of the mandrel segments, and elements for processing the motion information acquired by the sensor.
B21D 9/03 - Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls
B21D 9/05 - Bending tubes using mandrels or the like co-operating with forming members
17.
Tube bending machine with an automatic loading system and method for automatic loading of tubes on the bending head of a tube bending machine
The machine includes: a bending head movable with at least two degrees of freedom in a transverse vertical plane; a first drive is arranged to move the bending head in the plane and to move a tool of the bending head between an open position, in which it defines with a die of the bending head a free space adapted to receive a tube to be bent, and a closed position, in which it clamps the tube against the die. A tube-carrying structure is rotatable about an axis of rotation perpendicular to the plane; a second drive is arranged to cause the tube-carrying structure to rotate about its own axis of rotation; and an electronic control unit is arranged to control the first and second drives so as to move the bending head and the tube-carrying structure in a position such that the tube is received with a desired orientation in the free space between the die and the tool.
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B21D 7/12 - Bending rods, profiles, or tubes with programme control
18.
TUBE BENDING MACHINE WITH AN AUTOMATIC LOADING SYSTEM AND METHOD FOR AUTOMATIC LOADING OF TUBES ON THE BENDING HEAD OF A TUBE BENDING MACHINE
The machine (10) comprises: a bending head (14) movable with at least two degrees of freedom in a transverse vertical plane; first driving means arranged to move the bending head (14) in said plane and to move a tool (26) of the bending head (14) between an open position, in which it defines with a die (24) of the bending head (14) a free space adapted to receive a tube (T) to be bent, and a closed position, in which it clamps the tube (T) against the die (24); a tube-carrying structure (36) rotatable about an axis of rotation (X2) perpendicular to said plane; second driving means arranged to cause the tube-carrying structure (36) to rotate about its own axis of rotation (X2); and an electronic control unit arranged to control the first and second driving means so as to move the bending head (14) and the tube-carrying structure (36) in a position such that the tube (T) is received with a desired orientation in the free space between the die (24) and the tool (26).
A method urges a blank along an axial direction between a movable bending tool and a stationary counter-tool and, while the blank is being moved forwards, of moving the bending tool from a neutral position, in which the blank is not bent, to a working position, in which the blank is bent to the desired bending centerline radius, the working position being rotated with respect to the neutral position by a given angle of rotation depending on the desired bending centerline radius. The method further includes urging the blank between a pair of shoes upstream of the bending tool so as to make the deformation of the blank easier, and the step of moving the bending tool from the neutral position to the working position is carried out by controlling at least two degrees of freedom of the movement of the bending tool in the plane defined by the axial direction and by a transverse direction perpendicular to the axial direction. By virtue of the initial deformation of axial and radial compression of the blank due to the passage between the shoes, the following bending step by the bending tool is made easier and allows for obtaining bending centerline radiuses significantly smaller than the smallest ones obtainable with the traditional variable-radius bending methods.
B21D 7/02 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment
metal working machines, namely bending, forming, tapering, punching, cutting and crushing machines for processing and working tubes and sections in metal
