GUMPTION RADIATION MACHINE WITH A WORKING ON HEAD AND A ON THIS ARRANGED CLUTCH FOR A NOZZLE

Furthermore the available invention concerns a device for automatic changing from Schneiddüsen after the generic term of the requirement 1. the invention concerns a procedure for automatic changing from Schneiddüsen after the generic term of the requirement 12.

Dependent on Blechstärke, material and gumption process (e.g. burning/melt-cuttings) different Schneiddüsen must be inserted into the cutter heads of the cutting machine. These Schneiddüsen are changed and/or screwed in while stationary for the technology predominantly manually. A manual change of the Schneiddüsen is however connected with a relatively long interruption of the enterprise of the cutting machine.

There is however also nozzle alternating systems for automatic changing from Schneiddüsen, in particular for cutter heads of a laser cutting machine, well-known. Thus the EP shows 1602438 a2 for example a nozzle alternating system, with which the cutter head must be moved during the change phase to different places, in order to take one nozzle which can be changed out of the cutter head and to take up a new nozzle from a nozzle changing magazine. From the JP 2006263765 a nozzle alternating system is well-known, with which the cutter head during the nozzle change phase in its position remained and which actual nozzle change procedure is made by a robot element, in particular a bionic arm. As altogether unfavorable at the well-known nozzle alternating systems it is to be regarded that the complex and long change times productivity increases desired in the way. Besides the well-known systems are technically very complex and thus tendentious trouble-prone.

As the further disadvantage the fact is to be called that used nozzles taken out of the cutter head are carried back with well-known nozzle alternating systems again into the nozzle changing magazine and therefore on the condition of the nozzle consideration which can be taken in the next step be taken must, in order to not falsely insert a nozzle already used again into the cutter head.

Complex systems for process security and/or examination of the individual nozzles are the result.

The invention is the basis the task to suggest a device and/or a procedure for automatic changing from Schneiddüsen with which/that from the state of the art disadvantages admitted during simultaneous productivity increase be gone around can.

The task specified before is solved by a device with the characteristics of the requirement 1 and by a procedure with characteristics of the requirement 12.

Favourable execution forms of the invention are the subject of the further requirements.

The device according to invention is characterized by it that the nozzle changing magazine and the cutter head are relatively to each other movable, such that the nozzle changing magazine makes during a nozzle change phase in a first magazine position a direct withdrawal and disposal for a Schneiddüse possible from the cutter head and in a second magazine position a direct admission of a Schneiddüse into the cutter head inside, whereby the XY coordinates of the cutter head, which define the position of the cutter head in the area together with the Z-coordinate, while remains essentially constant for the nozzle change phase. This means the fact that the cutter head during the actual nozzle change phase related to which XY coordinates, muddled and/or must be moved. For the explanation of the XY Z-coordinates it is marked that movements in XY direction are to essentially concern and/or define horizontal running courses of motion and movements in Z-direction vertically running courses of motion. With the saving of courses of motion with the nozzle change saving of time step (movement = time), which cause a significant productivity increase. A further advantage is in the fact that few movements of the cutter head make possible also a altogether simpler controlling of the cutter head. The cutter head must be thus only proceeded for the purpose of the nozzle change to a given position (change position) and in accordance with reaching the change position at the most still in Z-direction, thus on or off, one moves. All other movements are implemented by relative to the cutter head the movable nozzle changing magazine. Preferentially the nozzle changing magazine is provided from there with its own drive. The nozzle changing magazine can be changed thus in principle both in vertical and horizontal adjustment.

The release for a gumption nozzle change can take place for example under a manual request of an operator or under an automatic request for example via expiration of a gumption nozzle service life counter (Counter). Further reasons for a gumption nozzle change can be due by a new material/sheet metal which can be worked on or to an appropriate request in the gumption plan.

An execution form plans that the disposal of the taken Schneiddüse can be made by a disposal element planned at the nozzle changing magazine. With the disposal element it can concern in principle an arbitrary means, which makes a disposal for a used Schneiddüse possible. Preferentially the disposal element is however designed as disposal opening, preferably through-hole, planned in the nozzle changing magazine. The Schneiddüse which can be disposed of can be removed thus from the cutter head and be disposed of over the disposal opening in the nozzle changing magazine.

The function mode of the nozzle change described here and/or the disposal procedure leaves themselves at the simplest with one in principle from the state of the art admitted gumption nozzle quick-connect coupler (quick-coupler/locking device) to realize. The cutter head can exhibit fitted with springs a stored blast connection system. The Schneiddüse can exhibit an extended photograph neck with a rest slot, which engages when putting into interior geometry of the blast connection. The rest mechanism integrated in the blast connection is in such a way trained that this separates when compressing an outside spring assembly and a compression spring, releases released and the rest slot geometrically, so that the Schneiddüse can be replaced. For example it can be intended that the quick-coupler with the nozzle changing magazine is located in effect connection, such that via plant of the cutter head at the nozzle changing magazine, a manipulation of the quick-coupler takes place. That means that the manipulation of the quick-coupler takes place essentially fully automatic, without manual interference of an operator.

A further execution form plans that in the range of the disposal opening, preferentially below of it, a catching element, preferably a container and/or a drawer or such a thing, can be arranged, in which the decontaminated Schneiddüse is caught. Thus it can be guaranteed that no used Schneiddüsen are in the nozzle changing magazine. The used Schneiddüsen are collected in the catching element and it are open the operator to use or dispose of in the case of substantial wear finally these after examination again in the magazine.

For example at least a circular, with several retaining drillings for the admission of the Schneiddüsen provided, is magazine wheel arranged in the nozzle changing magazine, whereby several Schneiddüsen are arranged in circumferential direction at the magazine wheel. As many retaining drillings are arranged in circumferential direction at the magazine wheel, according to invention a subordinated role plays, depends primarily however on the size of the Magazinrades. All adjustment movements of the nozzle changing magazine described in this text concern conversely thus also the adjustment movement of the Magazinrades. In a simplest execution form it can concern with the nozzle changing magazine at least a magazine wheel.

In order to ensure a safe seat of the Schneiddüsen at the magazine wheel during the adjustment movement, it can be intended that the Schneiddüsen with a fuse element, for example an O-ring, against falling out of the retaining drillings are secured.

Another execution form plans that several magazine wheels can be arranged next to each other, which form a magazine depot together. For example thereby each magazine wheel Schneiddüsen of the same type can be assigned, although the Schneiddüsen can differ in principle from magazine wheel to magazine wheel. The type of gumption nozzle used in the respective magazine wheel can be assigned then according to the CNC control, so that during the automatic change procedure the respectively wished magazine wheel can be inferred and/or used be started and the assigned type of gumption nozzle.

For example the magazine wheel with horizontal axle on horizontal running, swivelling Antriebsund is arranged/or carrier wave, whereby the magazine wheel is by means of Klemmund/or rest connection on the carrier wave postponable and/or fastenable. This has the advantage that the magazine wheel can be if necessary simply replaced and/or exchanged.

For example Antriebsund can exhibit/or carrier wave and the magazine wheel at least a plug-on milling, whereby the plug-on milling corresponds to carrier wave to Antriebsund/or with the plug-on milling planned in the magazine wheel. That it means that to Antriebsund/or carrier wave guidance surfaces or such a thing can be planned, which cause and guarantee a safe stop of the Magazinrades on Antriebsund/or carrier wave that the magazine wheel comes in correct position on Antriebsund/or carrier wave to the plant.

Furthermore it can be intended that Antriebsund exhibits/or carrier wave at least a through-hole, whereby the through-hole in its diameter essentially corresponds to the diameter of the disposal opening in the magazine wheel, and whereby the through-hole with the disposal opening in the magazine wheel swore. The correct position of the Magazinrades on Antriebsund/or carrier wave is thus at the same time the position, which ensures that the through-hole in Antriebsund/or to carrier wave with the disposal opening in the magazine wheel swore. And/or the Schneiddüse which can be taken which can be disposed of out of the cutter head can be disposed of now over the disposal opening planned in the magazine wheel and/or over the through-hole in Antriebsund/or carrier wave. It understands itself with the fact automatically that the through-hole and the disposal opening are so trained that a safe Entgleiten of the Schneiddüse can be realized. Preferentially, however under any circumstances compellingly, cannot be intended means, in particular rest means or such a thing, with which the magazine wheel can be fixed to Antriebsund/or carrier wave. Furthermore is conceivable that with the disassembly of a Magazinrades of Antriebsund/or carrier wave an aid, for example in the kind of a tool key trained, is used, with which the magazine wheel under easy rotating motion of the tool key against Antriebsund/or carrier wave from this be taken off can. The tool key can be inserted thereby by the disposal opening in the magazine wheel and be brought in such a way into contact with Antriebsund/or carrier wave.

A further execution form plans that the nozzle changing magazine as carrier construction unit, in which kind of a rail or such a thing can be trained, whereby in the carrier construction unit several retaining drillings for the admission of the Schneiddüsen and at least a disposal opening for the disposal of the Schneiddüsen can be planned.

Preferentially the magazine wheel and/or the carrier construction unit can be manufactured in lightweight construction way, in particular from a plastic material (POM) or aluminum.

The procedure according to invention is characterized by it that the nozzle changing magazine and the cutter head are moved relatively to each other, such that the nozzle changing magazine makes during a nozzle change phase in a first magazine position a direct withdrawal and disposal for a Schneiddüse possible from the cutter head and in a second magazine position a direct admission of a Schneiddüse into the cutter head inside, whereby the XY coordinates of the cutter head, which define the position of the cutter head in the area together with the Z-coordinate, while is kept essentially constant to the nozzle change phase.

The expiration can essentially be characterized by the following process steps:

1. A.) procedure of a cutter head for a nozzle changing magazine;
2. b.) Position the nozzle changing magazine into a first magazine position;
3. C.) procedure of the cutter head and/or the nozzle changing magazine in a defined Z-direction;
4. D.) Manipulation of the locking device with simultaneous uncoupling/withdrawal and disposal of the used Schneiddüse from the cutter head;
5. e.) Procedure of the cutter head and/or the nozzle changing magazine in a defined Z-direction;
6. f.) Position the nozzle changing magazine into a second magazine position;
7. g.) procedure of the cutter head and/or the nozzle changing magazine in a defined Z-direction;
8. h.) Admission of a new Schneiddüse by the cutter head;
9. i.) Continuation of the gumption enterprise.

Furthermore the procedure plans that the withdrawal and/or the uncoupling of the Schneiddüse from the cutter head can be supported by a gumption gas impulse at the cutter head. Thus it can be guaranteed on the one hand that the Schneiddüse is removed for that surely after manipulation for example quick-coupler from the cutter head and on the other hand the Schneiddüse with the necessary pressure, which can be disposed of, into the disposal opening carried and arrived thus reliably into the intended receptacle.

In principle it is mentioned that under certain conditions without planning a disposal opening could be done. Like that would be for example conceivable to send the Schneiddüse which can be disposed of from the cutter head directly a receptacle or such a thing.

For example it can be intended that the nozzle changing magazine can be brought after each nozzle change into a starting position, thus into a kind zero position.

A remark example of the invention is more near described in the following on the basis the designs.

Fig. 1

a schematic representation of a laser cutting machine with a nozzle changing magazine in change position;

Fig. 2

the nozzle changing magazine in accordance with Fig. 1 in increased representation;

Fig. 3

the partial sectional view one on a drive and/or carrier wave arranged magazine wheel with tool tools arranged therein;

Fig. 4

a further execution form of a nozzle changing magazine;

Fig. 5

the drive and/or carrier wave in single opinion;

Fig. 6

the plan view on the nozzle changing magazine in accordance with Fig. 4;

Fig. 7

a cutout of a laser cutting machine with nozzle changing magazine arranged therein;

Fig. 8

the schematic representation of a receptacle planned at a nozzle changing magazine;

Fig. 9

the flow chart for automatic changing from Schneiddüsen in a laser cutting machine.

Fig. 1 points a schematic representation of a laser cutting machine L to automatic changing from Schneiddüsen with a nozzle changing magazine 1 first variant in change position and with a cutter head 2, which exhibits one replaceable with the cutter head 2 connected Schneiddüse S. The nozzle changing magazine 1 first variant is linear displaceable trained and/or can be moved by a linear movement in its X-direction. If such a movement of the nozzle changing magazine 1 is arranged, 1 arranged Schutzdeckel D can be postponed, in order to make the access possible to the magazine wheels 4, 5, 6, 7, 8, which form a magazine depot together, under this movement, within the front range of the nozzle changing magazine. The nozzle changing magazine 1 can be moved thus essentially linear by a resting position into a working position (change position). The manipulation of the Schutzdeckels D (opening or reasoning) can be coupled to the movement of the nozzle changing magazine 1 or separately take place. The cutter head 2 is at least into two degrees of freedom (x-y plane) displaceable and for the purpose of a gumption nozzle change by means of a movement unit to the gumption nozzle change position was proceeded.

In principle the laser cutting machine L described here is in such a way conceived that as much as possible courses of motion with the laser cutting machine L can be implemented (X/Y/Z). The operation diagramme described here is essentially limited from there during the nozzle change phase to a rotating motion of the nozzle changing magazine 1 and/or the magazine wheels 4, 5, 6, 7, 8.

Fig. the nozzle changing magazine 1 shows 2 in accordance with Fig. 1 in increased representation. The nozzle changing magazine 1 exhibits a frame structure R, in which Antriebsund is stored/or carrier wave 9 for the individual magazine wheels 4, 5, 6, 7, 8. Each magazine wheel 4, 5, 6, 7, 8 is provided with several retaining drillings, in which the individual Schneiddüsen S are arranged in circumferential direction of the magazine wheels 4, 5, 6, 7, 8. The Schneiddüsen S (the designation S is valid for all visible Schneiddüsen) are secured with an O-ring (not represented) against falling out of the retaining drillings.

Fig. 3 shows the partial sectional view to Antriebsund/or carrier wave 9 arranged Magazinrads 8 with tool tools arranged therein W. a rear magazine wheel 4 is represented complete and shows several Schneiddüsen S, which are arranged in circumferential direction on the magazine wheel 4. The magazine wheels 4, 5, 6, 7, 8 (magazine wheels 5, 6, 7 here not represented) are with the execution form shown here to be recognized as in the sectional view of the Magazinrades 8 with two ball notched pins 10, 10 ' provided. The magazine wheel 8 as well as the drive and/or carrier wave the 9 exhibit corresponding with one another in each case plug-on milling (guidance surfaces) 11 and 12, whereby the ball notched pins engage 10, 10 ' of the Magazinrades 8 with the plug-on of the Magazinrades 8 to the plug-on milling 11 Antriebsund/or carrier wave 9. For the replacement of the Magazinrades 8 the magazine wheel 8 from the rest points P can be circumvented with the help of the tool key W (the tool key W up to Antriebsund/or carrier wave in 9, then tool keys would bring W to turn, magazine wheel 8 made of resting are lifted). Likewise well to recognize is the disposal opening ET (the designation ET is valid for all visible disposal openings), arranged in the magazine wheels 4, 5, 6, 7, 8, which serves W on the one hand as disposal opening for taken Schneiddüsen which can be disposed of and on the other hand as introduction opening for the tool key.

Fig. a schematically represented rotation of a nozzle changing magazine 1 ' second variant, which rotation serves to bring the respective magazine wheels into an exchange/withdrawal position, shows 4. The nozzle changing magazine 1 ' can, as would drive represented, a lagging out. The frame structure R can for example with the help of a pneumatic cylinder P of the normal item (pos. II) into an exchange a withdrawal position (pos. I) to be brought, in order to ensure an optimal entrance to the withdrawal of a Magazinrades.

Fig. Antriebsund shows 5/or carrier wave 9 in each case a Draufund side view. Well to recognize the plug-on milling (guidance surfaces) are 11 (the designation 11 is valid for all visible plug-on milling), whereby a plug-on milling 11 is assigned to each magazine wheel. In the side view Antriebsund/or carrier wave 9 likewise well the through-hole 13 (the designation 13 is valid for all visible through-holes) is to be recognized. The through-hole 13 essentially corresponds to the diameter of the disposal opening ET in the magazine wheel in its diameter, whereby the through-hole 13 with the disposal opening ET in the magazine wheel swore. This escape-ends arrangement by means of the plug-on milling 11 is obtained, which guarantee that the magazine wheel is in a defined situation on Antriebsund/or carrier wave 9.

Fig. the plan view shows 6 to the nozzle changing magazine 1 ' second variant in accordance with Fig. 4 with the magazine wheels 4, 5, 6, 7, 8. Antriebsund/or carrier wave 9 is by means of bearings in the frame structure R stored. The frame structure R is tiltable fastened on a kind baseplate (not represented). The frame structure R can be swivelled over pneumatic cylinder P. /The drive/rotation of the magazine wheels 4, 5, 6, 7, 8, can be guaranteed for example by a toothed belt drive 14. In addition carrier wave 9 a wheel 15 is fastened and with a drive disk 16 of an engine 17 connected over the toothed belts 14 on Antriebsund/or. The rotating motion can be steered by means of a rotativen rotation transducer system at the engine, whereby an exact angle positioning of the magazine wheels 4, 5, 6, 7, 8 can be ensured.

Fig. a cutout of a laser cutting machine L with nozzle changing magazine arranged therein 1. the Schutzdeckel D shows 7 is locked (resting position) and the nozzle changing magazine thus in the gumption enterprise from the penetration of gumption deaf or such a thing protected. For the nozzle change procedure the nozzle changing magazine 1 can exercise a linear movement, whereby the Schutzdeckel D is postponed. The nozzle changing magazine proceeds thus into its change position (working position).

Fig. the schematic representation of a catching element 18 planned at a nozzle changing magazine 1 shows 8. The catching element 18 is designed here as drawer and makes for an operator possible in the shoved out condition the withdrawal of ejected and/or decontaminated Schneiddüsen.

Fig. the gradual flow chart (AH) points 9 to automatic changing from Schneiddüsen S in a laser cutting machine. Antriebsund/or carrier wave 9 with the attached magazine wheel 4 is always in such a way positioned in a Standby position (resting position) of the nozzle changing magazine that the central disposal opening ET of the Magazinrades 4 and/or the through-holes 13 Antriebsund stands/or for carrier wave 9 vertically. Thus the nozzle changing magazine always is in stripping position (change position) in accordance with position A.

The nozzle change can be released thereby for example by one of the following release situations:

1. 1. according to gumption plan another type Schneiddüse is needed;
2. 2. the service life of the Schneiddüse deposited in the control elapsed;
3. 3. the change procedure is released by the operator. In principle the nozzle changing magazine is during the working on phase of the laser cutting machine in a kind park position that is called within a protected range far from the gumption range.

If a nozzle change is released, a movement unit drives the cutter head 2 into a given X/Y position (change position) to the appropriate magazine wheel 4. After reaching the change position an adjustment of the cutter head 2 takes place only in Z-direction (vertical adjustment), whereby the cutter head 2 the Schneiddüse S in Z-axis into the appropriate disposal opening ET (see position B) proceeds. The outside spring assembly of a quick-coupler 3 arranged at the cutter head 2 drives on the shoulder of the Magazinrades 4 and further diving into Z-direction, on a “Disconnect value” for example specified, compresses the quick-coupler 3 in accordance with position C. the rest mechanism of the quick-coupler 3 is released and the Schneiddüse S by a gumption gas impulse from the released blast connection is blown out. By the disposal opening ET in the magazine wheel 4 and/or the through-hole 13 in Antriebsund/or carrier wave 9 arrives the Schneiddüse S which can be disposed of into the catching element 18 arranged below the Magazinrades 4.

In the following step, in accordance with position D, the cutter head 2 raises the magazine wheel 4 again in Z-direction and into the next alternate position (admission of a new Schneiddüse) is turned. In the range of the magazine wheels a device can be intended by Schneiddüsen for the detection, with which it can be examined whether in the new magazine position a Schneiddüse is present S. The device for the detection of the Schneiddüsen, can be trained thereby for example as optical light barrier, inductive or capacitive reed switch or as magnetic or electrically working detector system, in order to call only a small selection. If no Schneiddüse is detected, the magazine wheel 4 is turned into the next position, until a Schneiddüse is detected. Subsequently, the cutter head 2 in accordance with position E dives a deposited “Connect value” and couples in accordance with position F the new Schneiddüse. Afterwards the cutter head raises 2 in accordance with position G in Z-direction and the gumption enterprise can be continued. Therefore the nozzle changing magazine and/or the magazine wheel 4 turns again into the starting position in accordance with position H (position A) essentially corresponds, so that the nozzle change procedure can be started if necessary again.