DE3814630A1 - Laser punch composite processing machine - Google Patents

Abstract

A laser-punch composite machine (1) has a main frame (3). A laser generator (5) is mounted, by a positioning support (23), upon a vibration-proofing frame (17) which, in turn, is mounted on the main frame. This arrangement lessens vibration in the main frame passing to the laser generator.An optical beam path comprises a tube (45) mounted on the laser generator, a tube (43) mounted on a laser beam bender and a tube (47) mounted on the main frame between them without physical contact with the other two tubes. A work-table on the main frame is provided with small and large work-chutes, the small one being slantable both with, and independently of, the large one

Description

The invention is concerned with a combined laser punching Processing machine that a punching and a La executes water processing on a sheet metal workpiece, and in particular special deals with a combined processing machine that can be easily moved and installed.

Usually there are punch presses, the punching processes on sheet metal workpieces and laser processing machines, perform the laser processing on such workpieces. Recently an integrated punch press and a laser processing machine combined to form a combined laser Get punching machine. This combined La This punch processing machine generally has a punch tool that moves freely in the vertical direction Laser processing head for outputting a laser beam, and a workpiece moving and positioning device to the workpiece to a location under the punch or To move and position the laser head.

By moving and positioning the workpiece next to the punch tool and the laser head using the workpiece movement and positioning device can be punched and laser processing at the respective points in complete Make a simple assignment to each other on the workpiece.

With this type of combined laser punching processing However, there is a risk that the optical system for the laser generator and other associated elements the strong vibrations from punching damaged will. Therefore different types of vibration dampers have been created the devices for protecting the optical system of the laser  generator and the like against impact loads or Vibrations with such a combined laser punch bear processing machine used.

Examples of such vibration damping devices for Avoiding vibrations from the punch press are those where the laser generator at a certain point in Ent distance from the punch press is arranged, or such Design in which by interposing an air spring / anti-vibration rubber or any other Similar means the laser generator on the edge of the stamping press frame is arranged.

In the design, however, in which the laser generator in one a certain distance from the punch press is not only the space required large, but also the transport and the Installation are extremely complex. After installation there are additional difficulties regarding the many Time it takes to adjust the optical axis and to do the same.

In the latter design, in which the Laserge nerator on the edge of the punch press frame under the intermediate scarf device arranged an air spring / vibration damping rubber is, the vibration damping effect is insufficient whether no difficulty in terms of transportation results, so that it becomes difficult, extremely strong vibratio reduce to predetermined sizes. Even in the event in which the vibration damping effect is sufficient still the setting of the optical axis setting and the like very difficult.

To transmit the vibrations to the laser machining To prevent the headboard is also the laser processing headboard on a frame with the interposition of vibration dampers  the facilities stored. Form an optical path the tube for guiding the laser beam from the laser generator the laser machining head part, however, is simple stored on the punch press frame. This results in difficult when vibrations to the laser processing head over the tube forming an optical path are transmitted.

In addition, if the finished workpiece from the combined laser punch processing machine who removed the workpiece is to be removed by the removal device moves. With this interpretation, however, it is impossible to get that out applicable workpiece to move and another workpiece too to edit. This leads to a loss of time during which the The system temporarily stops.

The invention aims to overcome the previously difficulties described in conventional facilities to provide a combined laser punching machine, in which the transmission of vibrations from the punch press to the laser generator is effectively suppressed, the trans port and the like can be carried out easily and the adjustment The optical axis adjustment is also easy lets take.

According to the invention, this is achieved in that a vibra tion-damping frame on one side of the frame of the punch press is attached with the aid of a connecting part, and that a positioning and carrying device is attached, the is formed by combined air springs, one position control device on top of this vibration damping the frame is provided. The laser generator is on the upper side of these facilities.  

The invention also aims to use a combined laser punching To provide processing machine with absolutely no There is a risk that vibrations from the punch press to the La processing head over that which forms an optical path Tube that are transmitted between the laser generator and the laser processing head is arranged.

For this purpose, a combined laser stamping processing is distinguished machine according to the invention in that an interpretation is specified in which a laser beam path Pipe between a generator-side pipe that is on the La Sergeneratorsseite is provided, and a deflecting mirror part Tube is provided on the side of the laser processing Head is provided, with one end of the deflecting mirror part Tubes sitting loosely on one end of a laser beam path forming tube sits, and the gas from a loose public voltage between the tube forming a laser beam path and the Deflecting mirror tube part is passed through. Furthermore, according to the Invention a combined laser stamping processing machine are provided, even when the fer another section of the workpiece can be positioned, which reduces downtimes avoided by temporarily interrupting the Ar caused by the machine.

According to the invention, a freely inclinable slide is used for this purpose seen working in a certain direction at the work table Supporting the tool is provided such that the finished machined workpiece by the inclination of the slide will.

Further details, features and advantages of the invention he emerge from the description of preferred below Embodiments of the invention with reference to the Drawing. It shows:  

Fig. 1 is a side view of one embodiment of the invention, in which a part is shown in Schnittdar position,

Fig. 2 is an enlarged sectional view taken along an arrow II in Fig. 1,

Fig. 3 is a plan view of the work table in the embodiment according to the invention shown in FIG. 1, and

Fig. 4 is a schematic front view of the working table cal.

With reference to FIG. 1, in a combined processing machine 1 according to this preferred embodiment, a laser generator 5 and a laser processing head 7 are attached to a punch press 3 . More precisely, the punch press 3 is designed in one piece with a portal-shaped frame 11 on a common base 9 . On the frame 11 are a vertically reciprocating movable punch for Aufz zen a punch, upper and lower turrets 13 , which are equipped with a large number of punches and tools that can be rotated with the help of a motor (not shown) are, and a workpiece movement and Positionierein device 15 is provided to horizontally move and position a sheet metal workpiece in the direction of the X axis and the Y axis.

In order to achieve the smallest possible space requirement and to facilitate transport, as well as to enable easy adjustment of the optical axis of the machine, the laser generator 5 is mounted on the common base 9 near the punch press 3 . More specifically, vibration damping of the frame 17 is integrally attached to the common base 9 by means of a plurality of fastening parts 19 . A vibration damping base 21 is supported on the vibration damping frame 17 via a plurality of positioning support means 23 . The laser generator 5 is mounted on the vibration-damping base 21 .

More specifically, the vibration-damping frame 17 is seen with a leg portion 17 L at each of its four corners and it is box-shaped, with a plurality of horizontal support parts 17 B is provided, alternately, the upper and lower parts of the respective Schenkelab sections 17th Connect L. The fasteners 19 are formed by connecting rods that go through the respective leg sections 17 L of the vibration-damping frame 17 . The lower end of each connecting rod is screwed into the common base 9 . Since they are securely fixed, the fastening components can of the vibration damping Rah mens 19 maintain a state of high stress in the leg portions 17 L 17, thereby increasing the damping property of the vibration damping frame 17th

The Positioniertrageinrichtung 23 transmits the vibration dampen de base 21 eliminates vibration of the punch press 3 and positions the laser generator 5 in correct manner relative to the common base. 9 The design of the positioning support device 23 is shown in Fig. 2. In particular, a cylindrical first tubular element 25 is integrally attached to the upper surface of the legs 17 L of the vibration-damping frame 17 by means of a screw or the like. A flange portion 25 F , whose outer peripheral surface is formed by a first ko African distance 25 T , is provided on the lower portion of the first tubular member 25 .

The first tubular element 25 in this embodiment according to the invention engages inside a cylindrical second tubular element 27 which is attached to the bottom surface of the vibration-damping base 21 . A flange portion 27 F is integrally provided on the upper portion of the cross section of the tubular member 27 to attach the positioning support 23 to the vibration-damping base 21 . In addition, an annular plate 27 R , which is provided with a conical opening part 27 T , is integrally attached to the lower part of the second tubular member 27 so as to freely cooperate with the first conical section 25 T.

A sealing member 29 or the like is formed of rubber, and a damping effect acts 27 be by frictional contact with the inner circumferential surface of the second tubular member is mounted on the upper portion of the first tubular member 25 via a support member 25 B. When the conical section 25 T of the first tubular member 25 and the conical opening portion 27 T of the second tubular member 27 are in contact, a fluid pressure chamber 31 is formed which is surrounded by the first and second tubular members 25 and 27 and the sealing member 29 . A fluid inlet / outlet opening 27 H is formed at a suitable location in the second tubular member 27 .

On the side of the first tubular member 26 , a common air spring 33 as an intermediate member, such as a fluid pressure buffer element, is arranged between the flange portion 25 F of the first tubular member 25 and the flange portion 27 F of the second tubular member 27 . An air inlet / outlet opening 27 H , which is in communication with the air spring 33 , is provided at a suitable location in the flange section 25 F of the first pipe section 25 . In addition, the air spring 33 is in communication with an inter mediate container 37 , which is seen in the vibration-damping base 21 , via a small-diameter opening 35 , which is formed in the flange portion 27 F of the second tube section 27 .

The vibration damping device of the type described above can also be used for mounting the laser processing head 7 and the deflecting mirror arrangement 39 on the frame 11 .

With such a design, punching is carried out in the punch press 3 , compressed air is introduced into the air spring 33 , which is installed in the interior of the Positioniertragein device 23 . Then, the vibration damping base 21 is pushed up and separated from the vibration damping frame 21 . Thus, strong vibrations, which it generates when the punch press performs punching processing, are absorbed by the deformations of the following parts of the combined machine: the connecting part of the common base 9 and the vibration-damping frame 19 , the vibration-damping frame 19 itself, the air spring 33 and the con tact portion of the sealing member 29 and the second Rohrele element 27th Vibrations are also reduced in that temporarily free air flow from the air spring 33 into the intermediate container 37 and from the intermediate container 37 into the air spring 33 is possible. In particular, the vibration of the punch press 3 is not transmitted to the laser generator 5 , so that the laser generator 5 is protected from such vibrations.

While the punch press is interrupted and laser processing is carried out, the air in the air spring 33 is discharged. Then the vibration-damping base 21 lowers due to its own weight. In the Positioniertragein direction 23 , the conical portion 25 T of the first tubular member 25 and the conical opening portion 27 T of the second tubular member 27 are engaged, so that the laser generator 5 is positioned relative to the common base 9 . In addition, the closed fluid pressure chamber 31 is formed by the mating of two conical portions 25 T and 27 T. Since since the working fluid is introduced into the fluid pressure chamber 21 , the second tubular element 27 is pressed down and the conical section 25 T and the conical opening section 27 T are alternately more firmly engaged so that an accurate positioning of the laser generator 5 is obtained and this Condition is kept stable. Furthermore, the first tubular member 25 has a configuration in which the air spring 33 is contained between the flange portion 25 F of the first tubular member 25 and the flange portion 27 F of the second tubular member 27 , so that a unified structure for the air spring and the position control device is obtained. which enables easy assembly adjustment and attachment.

Referring again to FIG. 1, the laser processing is head 7 for executing stored such that its Po sition a machining of the workpiece by focusing a laser beam LB from the laser generator 5 on the frame 11 of the punch press 3 through a suitable vi brationsdämpfende means freely in the vertical Direction is adjustable.

On the upper side of the laser processing head 7 , a mirror arrangement 39 with a built-in deflection mirror 41 is arranged in such a way that its vertical position can be freely adjusted in the same way as the positioning support device 23 . On the mirror assembly 39 , a deflecting mirror section tube 43 is provided which extends towards the side of the laser generator 5 . The tube 43 is aligned with a generator-side tube 45 , which is provided on the laser generator 5 . Thus, a laser beam LB generated by the laser generator 5 is emitted onto the mirror arrangement 39 and it is deflected at right angles by the deflecting mirror 41 and passed into the laser processing head 7 .

A tube 47 designed as a laser beam path is arranged between the laser generator 5 and the mirror arrangement 39 in order to guide the laser beam LB. The laser beam path tube 47 is detachably mounted on the frame 1 of the punch press 3 via a Fixiereinrich device 49 . The diameter of the laser beam path tube 47 is sufficiently large compared to the deflecting mirror section pipe 43 and the generator-side pipe 45 , so that the end of the deflecting mirror section pipe 43 is loosely inserted into one end of the laser beam path pipe 47 to enable the deflecting mirror section pipe 43 to move vertically . Furthermore, a gas supply part 51 , via which a pressure gas, such as air and the like, is supplied, is provided at a suitable location on the laser beam path tube 47 . The gas supply part 51 is connected to a suitable gas supply source, such as a compressor (not shown in the figures).

Due to the above design, the laser beam path 47 does not touch the laser generator 5 or the mirror assembly 39 . Therefore, even if punching is carried out by the punch press 3 , no vibrations are transmitted from the laser beam path tube 47 to the laser generator 5 or the mirror assembly 39 . By appropriately preventing vibrations from reaching the laser generator 5 , the mirror assembly 9 and the laser machining head 7 , the transmission of vibrations to the device from other parts of the machine can also be avoided and therefore the precision of the optical system is well preserved.

If, in addition, pressurized gas is supplied from the gas supply part 51 into the laser beam path tube 47 , the pressurized gas is then discharged to the outside through the loose opening between the tubes 43 , 45 and the laser beam path tube 47 . Therefore, dust and the like is prevented from entering the interior of the optical system in the present invention through the loose opening between the tubes 43 , 45 and the laser beam path tube 47 . Also, the gas that is introduced into the laser beam path tube 27 reaches the inside of the Spiegelanord voltage 39 and flows out through exhaust parts and small openings that are formed when the mirror assembly 39 and the laser processing head 7 are mounted. Thus, the deflecting mirror 41 is effectively cooled, while dust and the like cannot penetrate into the mirror arrangement 39 and the laser processing head 7 .

Referring to FIGS. 1, 3 and 4, as previously indicated, the workpiece moving and positioning device 15 is provided in the frame 11 to move and position the workpiece to a punching position 53 or a laser machining position 55 . To support the workpiece, a work table 57 is provided, which has a small workpiece slide 59 , which is provided near a location below the laser processing position 55 . Furthermore, a large workpiece slide 61 is provided which surrounds three sides of the small workpiece slide 59 and an immovable table 63 is provided in the immediate vicinity of the large workpiece slide 61 .

The small workpiece slide 59 is swinging freely around a pivot pin 67 on a fastening element 65 which is provided on the frame 11 . In particular, a ver tical slot 65 a is formed on the fastener 65 , and the small workpiece slide 59 is attached to the pivot pin 67 , which is provided in the slot 65 a . Here, the slot 65 a is formed such that when the hinge pin 67 is at its highest point of the slot 65 a and the small workpiece slide 59 has a horizontal height, the upper surfaces of the small workpiece slide 59 and the large workpiece slide 61 are aligned.

In addition, as shown in FIG. 3, a first hydraulic cylinder 71 is provided on a vertical, telescopically designed dust pipe part 69 to collect dust that is generated during laser processing, thereby causing the small workpiece slide 59 to swing downward. The upper end of a piston rod 73 , which moves upward from the cylinder 71 , freely supports the central portion of the small workpiece slide 59 via a roller 75 .

If it is desired to carry out a small product that has melted or has been separated from a large workpiece, for example in a laser or stamping operation, the first hydraulic cylinder 71 is activated and the piston rod 73 lowers. Thus, the large workpiece slide 61 remains unchanged in its horizontal position and only the small workpiece slide 59 is lowered in the area of the slide 63 a , while a horizontal state is maintained and this tends towards the right side in FIG. 3, so that a small product can be delivered to the outside of the processing machine.

A hook plate 59 a is provided at the right end of the small work chute 59 to men to kom in engagement with the small work chute 59 in the large work chute 61 when the large work chute is activated 61st

The large workpiece slide 61 is pivoted freely about a pivot pin 79 on a fastening element 77 which is provided on the frame 11 . A borehole 83 , which is designed to transmit a pin 81 and is provided on the immovable table 63 , is formed on the right end of the large Ar beitsrutsche 61 . In particular, the perforated pin 81 is provided on the immovable table 63 by means of a spring 85 , and a second hydraulic cylinder 87 is provided. When the second hydraulic cylinder 87 is in its inactivated state, the pin 81 is biased by the spring 85 toward the left in FIG. 3. When the second hydraulic cylinder 87 is activated, the hole pin 81 is pressed to the right by the fluid pressure in the drawing.

Therefore, when the workpiece is machined with the pin 81 fitting in the hole 83 , the large work slide 61 is kept in a horizontal state. Then, when a comparatively large workpiece is discharged, the second hydraulic cylinder 87 is activated and by loosening the engaged state of the pin 81 and the hole 83 , the large work slide 61 can swing downward. At this time, the small work slide 59 swings down together with the large work slide 61 , since the hook plate 59 a is provided.

With this design, when the finished workpiece is output from the processing machine, the second hydraulic cylinder is activated and the interlocking construction parts comprise the perforated pin 81 and the perforated hole are detached from one another. If this is the case, the large work slide 61 moves because of its own weight, for example, so far that you get the state shown with double broken lines in Fig. 3, so that it is inclined to the right un th. The workpiece then slides onto the belt conveyor 89 .

Then the first hydraulic cylinder 71 is activated and the large work slide 61 returns to its initial state. Then, the large work slide 61 rotates counterclockwise in Fig. 3, which is due to the fact that the first hydraulic cylinder 71 causes a reverse movement through the small work slide 59 and the hook plate 59 a . When the large work slide 61 has reached the horizontal position again, the pin 85 engages the hole 87 again.

If, as previously described, a completed one Work piece over the slides in this form of training the invention has been removed, for example another part of the workpiece by the effect of the work piece movement and positioning device are moved into it. Dead times due to interruptions of the Avoid system operations.  

Small products by melting or the like incurred during laser processing and large products from other machining operations and the like can be made accordingly their size in addition to the outside of the processing machine ne transported so that it is possible to carry a number of Execute processing steps quickly.

The preferred embodiment according to the invention also has a simple structure in which only a single small ar slide or both the big and the small work slide can be inclined, which requires a single hydrau lik cylinder needed.

Claims (27)

1. Combined laser stamping processing machine, characterized by
a main frame ( 11 ),
a work table ( 57 ) mounted on the main frame ( 11 ) for carrying a workpiece,
a punching tool and a shaping tool ( 3 , 13 ) which are attached to the main frame ( 11 ) in order to punch an interposed workpiece in cooperation with one another,
a vertically reciprocable Stanzstem pel, which is mounted on the main frame (11) to the punch (13) to pressurize and to cause the punch (13) executes a punching process,
a laser processing head ( 7 ) which is attached to the main frame ( 11 ) in order to emit a laser beam (LB) for carrying out laser processing on the workpiece,
a vibration damping frame ( 17 ) which is attached to the main frame ( 11 ) under a preload to improve the vibration damping capacity,
a laser beam generator ( 5 ) which is attached to the vibration-damping frame ( 17 ) via a vibration-damping device ( 21 , 33 ), and
means ( 47 ) forming an optical beam path for guiding the laser beam (LB) output from the laser generator ( 5 ) to the laser machining head ( 7 ). 2. Combined laser punching machine according to claim 1, characterized in that the vibration-damping frame ( 17 ) on the main frame ( 11 ) is attached by means of a connecting rod ( 19 ). 3. Combined laser punching machine according to claim 1 or 2, characterized in that the vibration-damping device has an air cylinder ( 33 ). 4. Combined laser punching machine according to claim 3, characterized in that the vibration-damping device ( 33 ) further has an intermediate container ( 37 ) and the air spring ( 33 ) in connection with the intermediate container ( 37 ). 5. Combined laser punching machine according to one of the preceding claims, characterized in that further between the laser generator ( 5 ) and the vibration-damping frame ( 17 , 21 ) a Po sitioniereinrichtung ( 23 ) is provided to the laser beam generator ( 5th ) with respect to the main frame ( 11 ). 6. Combined laser punching machine according to claim 5, characterized in that the positio niereinrichtung ( 23 ) between the laser beam generator ( 5 ) and the vibration-damping frame ( 17 , 21 ) is provided such that it the vibration-damping device ( 33 ) partially surrounds. 7. Combined laser punching machine according to claim 6, characterized in that a horizontal vibration damping device ( 21 ) is further provided to absorb the transverse vibrations of the vibration damping frame ( 17 ). 8. Combined laser punching machine according to claim 7, characterized in that the horizon tal vibration damping device ( 21 ) has a seal ( 29 ) which is attached in the positioning device ( 23 ). 9. Combined laser punching machine, characterized by:
a main frame ( 11 ) which has a foot part ( 8 ) which has a lower height compared to the other parts,
a work table ( 57 ) which is attached to the main frame ( 11 ) for carrying a workpiece,
a punching tool and a shaping tool ( 3 , 13 ) which are brought together in cooperation with one another on the main frame ( 11 ) for punching an intermediate workpiece
a vertically reciprocating stamping punch which is mounted on the main frame ( 11 ), acts on the punching tool ( 13 ) and effects punching processing by the punching tool,
a laser processing head ( 7 ) which is attached to the main frame ( 11 ) in order to carry out laser processing on the workpiece by means of an emitted laser beam (LB),
a vibration-damping frame ( 17 , 21 ) which has the same height as the other parts of the main frame ( 11 ) and is attached to the base of the main frame ( 11 ),
a laser beam generator ( 5 ) which is attached to the vibration damping frame ( 17 , 21 ) via a vibration damping device, and
means ( 47 ) forming an optical beam path for guiding the laser beam emitted by the laser generator ( 5 ) to the laser processing head ( 7 ). 10. Combined laser punching machine according to claim 9, characterized in that the vibration-damping frame ( 7 ) on the main frame ( 11 ) by means of a connecting rod ( 19 ) is attached. 11. Combined laser punching machine according to claim 9, characterized in that the vibration-damping device has an air spring ( 33 ). 12. Combined laser punching machine according to claim 11, characterized in that the vibration-damping device ( 33 ) further comprises an intermediate container ( 37 ), and the air spring ( 33 ) is in communication with the intermediate container ( 37 ). 13. Combined laser punching machine according to claim 9, characterized in that a device ( 23 ) for positioning the laser beam generator ( 5 ) on the main frame ( 11 ) is provided, the positioning device ( 23 ) between the laser beam generator ( 5 ) and the vibration-damping frame ( 17 , 21 ) is provided. 14. Combined laser punching machine according to claim 13, characterized in that the positioning device ( 23 ) between the laser beam generator ( 5 ) and the vibration-damping frame ( 17 , 21 ) is provided such that it the vibration-damping device ( 21 , 33 ) surrounds. 15. Combined laser punching machine according to claim 14, characterized in that a transverse vibration damping device ( 21 ) is provided for absorbing transverse vibrations of the vibration-damping frame ( 17 ). 16. Combined laser punching machine according to claim 15, characterized in that the transverse vibration damping device has a seal ( 29 ) which is attached in the positioning device ( 23 ). 17. Combined laser punching machine, characterized by:
a main frame ( 11 ),
a work table ( 57 ) which is mounted on the main frame ( 11 ) for carrying a workpiece,
a punching tool and a shaping tool ( 3 , 13 ), which is placed on the main frame ( 11 ) for punching a workpiece arranged therebetween in cooperation with one another,
a vertically reciprocating punch, which is attached to the main frame ( 11 ), acts on the punch and causes punching to be carried out using the punch,
a laser beam generator ( 5 ),
a laser processing head ( 7 ) which is attached to the main frame ( 11 ) in order to carry out laser processing on the workpiece with the aid of an output laser beam (LB),
a laser beam deflecting device ( 39 , 41 ) which is attached to the main frame ( 11 ) in order to deflect the laser beam (LB) from the laser beam generator ( 5 ) towards the laser processing head ( 7 ), and
a device ( 47 ) forming an optical beam path, which leads the laser beam (LB) output by the laser beam generator ( 5 ) to the laser deflection device ( 39 , 41 ),
wherein the device ( 47 ) forming the optical beam path further comprises a first tube ( 43 ) which is attached to the laser beam generator ( 5 ) in order to pass the laser beam (LB) emitted by the generator ( 5 ), a second tube ( 45 ) which is provided on the laser beam deflecting device ( 39 , 41 ) for receiving the laser beam from the first tube ( 43 ), and that a third tube ( 47 ) is provided which is attached to the main frame ( 11 ) and with the first and the second tube ( 43 , 45 ) is connected to it without physical contact to guide the laser beam from the first tube ( 43 ) to the second tube ( 45 ). 18. Combined laser punching machine according to claim 27, characterized in that the second tube ( 45 ) can move freely in the vertical direction ge against the main frame ( 11 ). 19. Combined laser punching machine according to claim 18, characterized in that the first and second tubes ( 43 , 45 ) have smaller diameters compared to the third tube ( 47 ), and that they are connected to the third tube ( 47 ) are connected at their ends by being inserted into the respective end of the third tube ( 47 ), leaving a gap between the ends, the gap being greater than the distance by which the second tube ( 45 ) can move in the vertical direction. 20. Combined laser punching machine according to claim 18, characterized in that the first tube ( 43 ) can move freely in the vertical direction against the main frame ( 11 ). 21. Combined laser punching machine according to claim 17, characterized in that fer ner a cooling device for cooling the inside of the third tube ( 47 ) is provided. 22. Machine tool, characterized by:
a frame ( 11 ),
a work table ( 57 ) attached to the frame for carrying a workpiece, and
a machining device ( 3 , 7 ) which is attached to the frame ( 11 ) for machining the workpiece at a machining position,
wherein the processing device has at least one punching tool ( 3 ) for punching the tool and a heat treatment device for processing the workpiece by means of heat, and wherein the work table ( 57 ) has a small working slide ( 59 ) and a large working slide ( 61 ), the small work slide ( 59 ) is provided in the vicinity of the processing position in such a way that it can pivot independently of the large work slide ( 61 ) in an inclined position, and the large work slide ( 61 ) near the small work slide ( 59 ) is provided in such a way that it can pivot into an inclined position. 23. Machine tool according to claim 22, characterized in that the processing device contains the heat processing device which has a heat processing head ( 7 ), and that the small working slide ( 59 ) is arranged under the heat processing head ( 7 ). 24. Machine tool according to claim 22, characterized in that the pivot axes of the small and large work chutes ( 59 , 61 ) are aligned with each other. 25. Machine tool according to claim 24, characterized in that the large work slide ( 61 ) on the work table ( 57 ) is provided such that it abuts on three edges of the small work slide ( 59 ), the three edges of the small work slide in different directions directions with respect to each other and is coplanar to the work table ( 57 ). 26. Machine tool according to claim 25, characterized in that the small work slide ( 59 ) is provided with a hook plate section for cooperation with the large work slide ( 61 ), so that the small work slide ( 59 ) can be pressed and pivoted down who can when the large work slide ( 61 ) is swung down. 27. Machine tool according to claim 26, characterized in that the small work slide ( 59 ) on the work table ( 57 ) is arranged in such a way that it lowers while it occupies a horizontal position without an inclination, and that it pivots downwards, if it works independently of the large work slide ( 61 ).