DE202021002568U1 - Machining center for machining profiles, in particular made of aluminum, light metal alloys, PVC or the like - Google Patents

Abstract

Machining center for machining profiles (2), in particular made of aluminum, light metal alloys, PVC or the like, comprising: an elongate base (3) which extends in a first direction (4); a portal (8) which is mounted along the base (3), extends above the base (3) in a second direction (12) transverse to the first direction (4) and with a working head (13) for processing the profiles ( 2) is provided; and at least one gripping and transport unit (19) mounted on the base (3) to hold at least one profile (2); and characterized in that it further comprises a first guide device (17) extending substantially along the entire base (3) in the first direction (4); wherein each gripping and transport unit (19) comprises a carriage (20) which is slidably coupled to the first guide device (17) in order to move the gripping and transport unit (19) itself along the base (3).

Description

TECHNICAL PART

The present invention relates to a machining center for machining profiles, in particular made of aluminum, light metal alloys, PVC or the like.

STATE OF THE ART

In the field of machining of profiles, it is known to manufacture a type of machining center comprising: an elongated base extending in a first, substantially horizontal direction; a machining station obtained along the base for performing machining by cutting the profiles; and a feed unit for holding at least one profile at a rear end thereof and for conveying the profile along the base and through the processing station.

The feed unit works together with a large number of grippers that are arranged at the processing station.

Each gripping device typically comprises a horizontal and a vertical clamp or vice configured to clamp the profile in two mutually perpendicular directions and in a direction of advance of the profile along the base.

Each clamp consists of two clamping jaws which can be moved relative to one another between a profile clamping position and a release position.

Known machining centers of the type described above have certain drawbacks, mainly resulting from the fact that such machining centers are relatively complex and expensive due to the simultaneous presence of the feed unit and the gripping devices on the basis that they also synchronize the movements along the feed unit the base and the movements of the clamps between the relative clamping and releasing positions of the profiles and that they ultimately involve the repeated clamping and releasing of the profiles in / out of the clamps.

OBJECT OF THE INVENTION

The object of the present invention is to realize a machining center for machining profiles, in particular made of aluminum, light metal alloys, PVC or the like, which is free from the disadvantages described above and can be realized simply and economically.

According to the present invention, a machining center for machining profiles, in particular made of aluminum, light metal alloys, PVC or the like, is realized in accordance with the appended claims.

Figure list

• 1 eine schematische perspektivische Ansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Bearbeitungszentrums ist, bei der zur Verdeutlichung Teile entfernt wurden;
• 2 eine schematische Seitenansicht des Bearbeitungszentrums nach 1 ist, bei der zur Verdeutlichung Teile entfernt wurden;
• 3 eine schematische perspektivische Ansicht eines ersten Details des Bearbeitungszentrums nach 1 ist, bei der Teile zur besseren Übersichtlichkeit entfernt wurden;
• 4 und 5 zwei schematische perspektivische Ansichten eines zweiten Details des Bearbeitungszentrums nach 1 sind, bei denen zur Verdeutlichung Teile entfernt wurden;
• 6 eine schematische Seitenansicht eines Details aus den 4 und 5 ist;
• 7 eine schematische perspektivische Ansicht eines dritten Details des Bearbeitungszentrums nach 1 ist, bei der zur Verdeutlichung Teile entfernt wurden; und wobei
• 8 eine schematische perspektivische Ansicht eines vierten Details des Bearbeitungszentrums nach 1 ist, bei der zur Verdeutlichung Teile entfernt wurden.

The present invention will now be described with reference to the accompanying drawings which show a non-limiting embodiment thereof, in which:

• 1 Figure 3 is a schematic perspective view of a preferred embodiment of the machining center according to the invention, with parts removed for clarity;
• 2 a schematic side view of the machining center according to 1 is where parts have been removed for clarity;
• 3 a schematic perspective view of a first detail of the machining center according to FIG 1 is where parts have been removed for better clarity;
• 4th and 5 two schematic perspective views of a second detail of the machining center according to FIG 1 are in which parts have been removed for clarity;
• 6th a schematic side view of a detail from the 4th and 5 is;
• 7th a schematic perspective view of a third detail of the machining center according to FIG 1 is where parts have been removed for clarity; and where
• 8th a schematic perspective view of a fourth detail of the machining center according to FIG 1 is where parts have been removed for clarity.

PREFERRED EMBODIMENT OF THE PRESENT INVENTION

With reference to the 1 and 2 1 becomes the entirety of a machining center for machining elongated profiles 2 made of aluminum, light metal alloys, PVC or the like.

The machining center 1 includes an elongated base 3 moving in a horizontal direction 4th extends through a substantially flat and vertical front surface 5 and is bounded by a substantially flat and horizontal upper surface 6th is limited.

The machining center 1 furthermore comprises a processing station 7th that is at an intermediate point of the base 3 is won and with a portal 8th is provided, which in turn is a vertical column 9 that are essentially parallel to one direction 10 runs across the direction 4th runs, and a horizontal cross member 11 which is substantially parallel to one direction 12th runs orthogonal to the directions 4th and 10 runs.

The portal 8th is towards 4th firmly and carries a working head 13th sliding with the cross member 11 connected to rectilinear movements along the cross member 11 in the direction 12th and the one with an electrospindle 14th is provided, which is sliding with the head 13th connected to look towards 10 to move.

The electrospindle 14th carries a tool in engagement 15th to edit the profiles 2 (e.g. for performing milling and / or drilling and / or cutting work) and works with a tool magazine 16 together, that with the column 9 connected is.

The machining center 1 further comprises a first guide device 17th on that on the face 5 parallel to the direction 4th is won and is between the free ends of the base 3 and thus essentially along the entire base 3 extends, and a second guide device 18th that are on the face 6th parallel to the direction 4th is won and between the station 7th and a free end of the base 3 itself extends.

As in the 3 and 7th shown includes the machining center 1 also a large number of gripping and transport units 19th (in this case three gripping and transport units 19th ) that on the base 3 are mounted to the profiles 2 in the direction 4th to move.

Every unit 19th includes a motorized slide 20th sliding with the guide device 17th is coupled to move along the base 3 in the direction 4th to move, and has the shape of a board or console from the surface 5 in the direction 12th sticks out.

The sled 20th is with a straightforward guide 21 provided on an upper surface of the carriage 20th parallel to the direction 12th is attached and a clamp or ferrule for tensioning 22nd carries, which have two gripping or clamping jaws for gripping 23 , 24 includes moving away from the sled 20th up towards 10 extend.

the clamp 22nd further comprises a support roller 25th that goes through the jaws 23 , 24 in the direction 12th extends to a direction 12th parallel axis of rotation 26th is rotatably mounted and together with the rollers 25th the other terminals 22nd a horizontal support plane P1 for a profile 2 forms.

The jaw 23 is towards 12th firmly mounted, and the clamping jaw 24 is sliding with the guide 21 connected to rectilinear movements towards 12th between a clamping position and a release position of a profile 2 to execute.

The jaw 24 will along the lead 21 by an actuator 27 that moves a rack 28 includes running along the slide 20th in the direction 12th extends, sliding with the carriage 20th is coupled and with an output or output rod 29 an actuating cylinder 30th connected that is parallel to the direction 12th even on the sled 20th is attached.

The jaw 24 is on the rack 28 by means of an actuating cylinder 31 blocked that is parallel to the direction 4th on the jaw 24 is mounted and has an output rod (not shown) whose disengagement or detachment from the rack 28 selective movement of the jaw 24 along the rack 28 in that direction 12th itself enables.

The jaw 24 is also equipped with a buffer or mandrel 32 made of elastically deformable material that slides with the jaw 24 coupled to rectilinear movements towards 10 to run, and that with a device 33 to block the buffer 32 on the jaw 24 itself is provided.

The unit 19th is also equipped with a roller support device 34 provided that a horizontal slide 35 includes sliding with the carriage 20th is coupled to look towards 12th along the slide 20th to move, and the one device 36 to lock the slide 35 on the sledge 20th has itself.

The device 34 further comprises a vertical slide 37 that with an upper roll 38 to support the profiles 2 is provided and sliding with the carriage 35 is coupled to look towards 10 under the thrust of an upper cylinder 39 to move that on the sled 35 parallel to the direction 10 is self-assembled.

As in the 1 , 2 , 4th and 5 shown includes the machining center 1 also a station 40 for loading and unloading the profiles 2 in / out of the gripping and conveying units 19th .

The station 40 is with the guide device 18th in the direction 12th aligned and works with a feed unit 41 together that are heading towards 12th extends and a support frame 42 comprises on which a lower conveyor 43 for feeding the profiles to be processed 2 to the station 40 and an upper conveyor 44 for the removal of the profiles that have just been processed 2 from the station 40 are assembled by themselves.

The device 43 is below the device 44 arranged and protrudes from the device 44 in the direction 12th to the base 3 there.

Any device 43 , 44 includes a variety of motorized conveyor belts 45 that are parallel to each other and to the direction 12th are arranged and a substantially horizontal support plane P2 for the profiles 2 define.

The device 43 works with a variety of end stop elements 46 together, each between two adjacent conveyors 45 on the frame 42 are attached to the station 40 are mounted and from the plane P2 the device 43 in the direction 10 stick out upwards.

Any profile 2 is made by a variety of sliding devices 47 in contact with the elements 46 pushed each of which between two adjacent conveyors 45 and includes: a horizontal slide 48 that with the frame 42 is coupled to rectilinear shifts towards 12th run, as well as a vertical slide 49 , the one with the sledge 48 is coupled to rectilinear shifts towards 10 to execute.

The sled 49 is with a push rod 50 provided facing towards 10 extends and through the carriage 49 itself is moved between a raised operating position in which the rod 50 across the plane P2 the device 43 protrudes, and a lowered resting position in which the bar 50 below the level P2 the device 43 itself runs.

As in the 5 and 6th shown, the device is working 43 also with a variety of lifting elements 51 together that between the elements 46 and the poles 50 are attached.

Every element 51 is between two adjacent conveyors 45 mounted, extends towards 10 and is in the direction 10 itself movable between a raised operating position in which the element 51 across the plane P2 the device 43 protrudes to the shaped profiles 2 to rotate and to ensure their correct positioning, and a lowered rest position in which the rod 50 below the level P2 the device 43 itself runs.

According to a variant not shown, the elements are 51 in the direction 12th movable.

Regarding 1 is the station 40 with a handover group 52 for handing over the profiles 2 between the devices 43 , 44 and the clamps 22nd fitted.

The group 52 comprises a large number of handover groups 53 (in this case two units 53 ) attached to the guide device 18th are mounted.

Every unit 53 includes a bridge crane 54 with a vertical column 55 that differ from the base 3 in the direction 10 extends upward, sliding with the device 18th connected to rectilinear movements along the base 3 in the direction 4th execute, and at a free upper end a horizontal cross member 56 that carries itself over the base 3 and the station 40 in the direction 12th extends.

As in shown, includes the unit 53 also a first horizontal slide 57 sliding with the cross member 56 connected to rectilinear displacements along the cross member 56 in the direction 12th perform, and a first vertical slide 58 sliding with the horizontal slide 57 connected to rectilinear movements along the horizontal slide 57 in the direction 10 perform.

The unit 53 further comprises a second horizontal slide 59 by the insertion of a spring-loaded shock absorber device 60 sliding with the vertical slide 58 coupled to rectilinear movements along the vertical slide 58 in the direction 12th to execute.

The unit 53 is also equipped with a second vertical slide 61 provided by the insertion of a spring-loaded shock absorber device 62 sliding with the horizontal slide 59 coupled to rectilinear movements along the horizontal slide 59 in the direction 10 to execute.

The vertical slide 61 carries a clamp for tensioning 63 comprising: a fixed jaw 64 that from the vertical slide 61 in the direction 10 protrudes downwards, and a movable jaw 65 that from the vertical slide 61 in the direction 10 protruding downward and sliding with the vertical carriage 61 coupled to rectilinear movements towards 12th between a clamping position and a release position of a profile 2 under the thrust of an actuating cylinder 66 to make the one on the vertical slide 61 parallel to its direction 12th is attached.

The devices 60 , 62 enable the terminals 63 , the profile 2 from the conveyor belts 45 the device 43 to grasp correctly and the profile 2 in the terminals 22nd correctly, regardless of the actual position of the profile 2 on the conveyors 45 the device 43 and of geometrical form deviations of the profile 2 self.

In addition, the devices allow 60 , 62 the terminals 63 , the profile 2 with an insertion push in the directions 10 and 12th in the terminals 22nd to position.

In relation to the above, it should be noted that the terminals 22nd a U-shape with an upward concavity and the clamps 63 have a U-shape with a downward concavity.

How the machining center works 1 will now be made with reference to the 1 and 2 and assuming the processing of a single profile 2 described.

The profile viewed 2 is from the conveyor 43 into the loading / unloading station 40 conveyed and in contact with the end stop elements 46 brought.

At this point the push rods are 50 the sliding devices 47 across the plane P2 the device 43 raised and along the frame 42 in the direction 12th advanced to the profile 2 correctly against the elements 46 to position it and clamp it to the clamping clamps 63 the handover group 52 to enable the profile 2 correctly in the tensioning clamps 22nd the gripping and transport units 19th transferred to.

If the profile 2 Has a contoured shape, so are the lifting elements 51 across the plane P2 the device 43 raised to the profile 2 position correctly and it the sliding devices 47 to enable it to be correctly against the end stop elements 46 to clamp, and the tension clamps 63 the handover group 52 to put it correctly in the tensioning clamps 22nd the gripping and transport units 19th to hand over.

Then the profile 2 of the units 19th along the base 3 advanced so that first the working head 13th can do its editing, and then bring it back to the station 40 is passed.

Finally the profile 2 through the group 52 from the terminals 22nd of the units 19th on the conveyor 44 to hand over.

• Außer Eingriff bringen des Betätigungszylinders 31 von der Zahnstange 28;
• Ergreifen eines aus der Klemmbacke 24 herausragenden Mitnehmerstifts 67 mittels der Klemme 63 und Bewegen der Klemmbacke 24 entlang der Führung 21 in Richtung 12;
• Wieder in Eingriff bringen des Betätigungszylinders 31 mit der Zahnstange 28, um die Klemmbacke 24 entlang der Führung 21 zu verriegeln;
• Lösen der Verriegelungsvorrichtung 33 der Puffersperre 32;
• Ergreifen, mit Hilfe der Klemme 63, eines aus dem Puffer 32 herausragenden Mitnehmerstift 68 und den Puffer 32 entlang der Klemmbacke 24 in Richtung 10 bewegen;
• Erneutes Aktivieren der Verriegelungsvorrichtung 33, um den Puffer 32 entlang der Klemmbacke 24 zu verriegeln;
• Lösen der Verriegelungsvorrichtung 36 der Rollen-Stützvorrichtung 34;
• Ergreifen, mit Hilfe der Klemme 63, der oberen Rolle 38 und Bewegen des horizontalen Schlittens 35 entlang des Schlittens 20 in Richtung 12; und
• Erneutes Aktivieren der Verriegelungsvorrichtung 36, um den Schlitten 35 entlang des Schlittens 20 zu verriegeln.

The tension clamp 22nd each gripping and transport unit 19th is via the tension clamp 63 a transfer unit 53 depending on the shape and size of the profile 2 and equipped according to an automatic tool cycle, which comprises the following steps:

• Disengaging the actuating cylinder 31 off the rack 28 ;
• Grab one from the jaw 24 outstanding driving pin 67 by means of the clamp 63 and moving the jaw 24 along the guide 21 in the direction 12th ;
• Re-engage the actuator cylinder 31 with the rack 28 to the jaw 24 along the guide 21 to lock;
• Release the locking device 33 the buffer lock 32 ;
• Grab it with the help of the clamp 63 , one from the buffer 32 outstanding driving pin 68 and the buffer 32 along the jaw 24 in the direction 10 move;
• Activating the locking device again 33 to the buffer 32 along the jaw 24 to lock;
• Release the locking device 36 the roller support device 34 ;
• Grab it with the help of the clamp 63 , the upper roll 38 and moving the horizontal slide 35 along the slide 20th in the direction 12th ; and
• Activating the locking device again 36 to the sled 35 along the slide 20th to lock.

After some variants not shown;
the loading / unloading station 40 is not applicable and is replaced by a loading station and an unloading station on opposite sides of the processing station 7th in the direction 4th are arranged;
the loading / unloading station 40 omitted and is replaced by a loading station and an unloading station on opposite sides of the base 3 in the direction 12th are arranged;
the guide device 18th will be on a back of the base 3 won; and
the portal 8th is along the base 3 in the direction 4th movable.

According to a further variant, not shown, the transfer group 52 eliminated and replaced by a robot manipulator, which comprises a large number of articulated arms and a transfer unit mounted at the free end of the articulated arms.

The transfer unit comprises two tension clamps arranged parallel to one another, which are completely analogous to the tension clamps 63 are.

The tension clamps are in accordance with the shape and dimensions of the profiles 2 movable to each other and are cushioned by load cells contained in the articulated arms.

The present description relates in particular to a machining center for machining profiles 2 , with an elongated base 3 , one along the base 3 assembled portal 8th that with a working head 13th to edit the profiles 2 is provided, and at least one on the base 3 mounted gripping and transport unit 19th to hold at least one profile 2 ; being the base 3 with a guide device 17th is provided which extends essentially along the entire base 3 extends and from the gripping and transport unit 19th is engaged slidingly.

Claims (10)

Machining center for machining profiles (2), in particular made of aluminum, light metal alloys, PVC or the like, comprising: an elongate base (3) which extends in a first direction (4); a portal (8) which is mounted along the base (3), extends above the base (3) in a second direction (12) transverse to the first direction (4) and with a working head (13) for processing the profiles ( 2) is provided; and at least one gripping and transport unit (19) mounted on the base (3) to hold at least one profile (2); and characterized in that it further comprises a first guide device (17) extending substantially along the entire base (3) in the first direction (4); wherein each gripping and transport unit (19) comprises a carriage (20) which is slidably coupled to the first guide device (17) in order to move the gripping and transport unit (19) itself along the base (3). Machining center according to Claim 1 the base (3) being delimited by a substantially flat and vertical front surface (5), the first guide device (17) being obtained on the front surface (5) itself. Machining center according to Claim 2 wherein the carriage (20) is in the form of a shelf protruding from the front surface (5) in the second direction (12). Machining center according to any one of the preceding claims, further comprising at least one loading and / or unloading station (40) obtained along the base (3) and with a transfer group (52) for transferring the profiles (2) into / from the Recording and transport unit (19) is provided. Machining center according to Claim 4 wherein the base (3) is delimited by a substantially flat and horizontal upper surface (6) which is provided with a second guide device (18) parallel to the first direction (4). Machining center according to Claim 5 , wherein the second guide device (18) extends at least in the area of the loading and / or unloading station (40) and is slidably engaged by the transfer group (52). Machining center according to any one of the preceding claims, wherein the portal (8) is mounted at an intermediate point of the base (3) and is fixed in the first direction (4). Machining center according to any one of the preceding claims, further comprising: a station for loading / unloading (40) the profiles (2) into / from the gripping and conveying units (19), and two superposed conveyors (43, 44) for Feeding the profiles (2) to be processed to the loading / unloading station (40) or to pick up the profiles (2) that have just been processed from the loading / unloading station (40) itself. Machining center according to any one of claims 1 to 7, further comprising: a station for loading the profiles (2) into the gripping and transport unit (19) and a station for unloading the profiles (2) from the gripping and transport unit ( 19), the loading / unloading stations being arranged in the first direction (4) on opposite sides of the portal (8). Machining center according to any one of claims 1 to 7, further comprising: a station for loading the profiles (2) into the gripping and transport unit (19) and a station for unloading the profiles (2) from the gripping and transport unit ( 19); wherein the loading and unloading stations are arranged in the second direction (12) on opposite sides of the base (3).

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