Temperature-compensated cutting machine

Abstract

The present invention relates to a cutting machine with temperature compensation, and also to a method for controlling the cutting machine, comprising retrieving (110) a cutting task sheet for processing an object on the working surface of the cutting machine having a cutting device, defining (120) a cutting path based on the cutting task sheet, continuously retrieving (130) position data, and guiding the cutting device along the cutting path based on the position data for processing, in particular cutting (140) the object, characterized by having a temperature compensation function, comprising continuously retrieving (150) temperature data from one or more temperature sensors (5,5',5"5"'), taking into account the temperature data to define (120) the cutting path and / or for adjusting (160) the cutting path.

Description

Technical Field

[0001] This invention relates to a cutting machine for cutting objects, wherein the cutting machine has a gantry moving system having a linear feed axis as the transverse axis of the gantry moving system, and to a method for controlling such a cutting machine. The cutting machine according to the invention has multiple temperature sensors on the transverse axis, the measurements of which are used to perform a temperature compensation function. Background Technology

[0002] This type of cutting machine is described, for example, in documents EP1385674B1 and EP2488333B1. Such a machine has a work surface designed to accommodate at least one object, and a processing unit movably mounted on a crossbeam above the work surface. The processing unit has a cutting device and tools for cutting or similar processing (e.g., perforation, folding, or grooving) the object located on the work surface. The object may in particular be printed or unprinted paper, sheets of cardboard or similar materials, foam materials, plastics, cloth, woven fabrics, leather, etc.

[0003] Many cutting machines have a machine body made of fiber composite materials such as carbon fiber reinforced plastic (CFK) or glass fiber reinforced plastic (GFK), in which moving parts are guided along a linear guide mechanism made of steel or aluminum. The combination of fiber composite materials with metal, especially in the crossbeam, is problematic, particularly when the main portion of the fibers is oriented longitudinally in the crossbeam, given that the longitudinal coefficient of thermal expansion of the fiber composite material is generally less than or significantly less than that of the metal guide rail, at least in the fiber longitudinal direction.

[0004] This leads to the so-called bimetallic effect, where two materials with different coefficients of thermal expansion elongate to different degrees upon heating and shorten to different degrees upon cooling. Therefore, undesirable beam bending occurs when the temperature of one or both components of the beam changes relative to the temperature present during installation.

[0005] Existing technologies address this problem by structurally mitigating the different thermal expansion rates of the two materials. In DE102004047525A1, the guide rail is axially floating and secured with segmented clamps, forming a strong anchor while allowing axial expansion of the guide rail. This floating mounting of the linear guide mechanism along the longitudinal direction via rolling supports with needle roller bearings is complex, difficult, and cannot be arbitrarily scaled down, thus limiting its use to very large machines. Therefore, a simpler and easier-to-implement solution for this problem, also applicable to smaller machines, is anticipated.

[0006] Alternatively, in principle, the thermal behavior in all spatial directions could be intentionally influenced by the fiber orientation in the fiber-matrix composite, but this would come at the cost of stiffness. However, in the beam of a cutting machine, most of the carbon fibers are preferably oriented longitudinally to achieve the highest possible flexural strength with the least amount of fiber material. But this also shifts the longitudinal coefficient of thermal expansion of such a CFK beam very close to zero. Intentional fiber orientation in the CFK machine body, using the same amount of fiber, either results in a significant loss of stiffness (e.g., regarding flexural strength) or a significant increase in weight to achieve the same stiffness value. Therefore, a solution to this problem that achieves high stiffness with a small amount of material is desirable.

[0007] Temperature compensation is known in principle from the technical field of CNC machine tools. Therefore, thermally induced displacement on the machine tool can be compensated by the NC controller based on the following approach:

[0008] 1) Use temperature sensors to determine time- and location-dependent temperature changes at machine structural components (e.g., on machine tools, columns, or spindle boxes);

[0009] 2) Determine the length changes at machine tool structural components using strain gauges (DMS); and

[0010] 3) Use other representative parameters such as feed axis drive power, motor loss power, refrigerant temperature or room temperature.

[0011] What is worth looking forward to is a solution to this problem, in which compensation can be achieved through relatively simple means and a mechanism adapted to the inherent type of the cutting machine. Summary of the Invention

[0012] Therefore, one objective of the present invention is to provide a cutting machine with improved temperature compensation function.

[0013] Another objective of this invention is to provide a cutting machine that achieves the temperature compensation function with low structural and technical costs.

[0014] Another objective of the present invention is to provide a cutting machine in which the cutting path can be adapted in real time to changing temperatures.

[0015] At least one of the tasks is accomplished by implementing the features of the characteristic portion of the independent claim. In this case, an advantageous design of the invention is found in the respective dependent claims.

[0016] The first aspect of the present invention relates to a cutting machine having:

[0017] - A working surface designed to accommodate at least one object to be cut.

[0018] -A gantry moving system with crossbeams and machining units, positioned above the work surface, and

[0019] - A computing unit, which has a processor with computing capabilities and algorithms for controlling the cutting machine.

[0020] The processing unit includes a cutting device and is movable along at least one guide rail of the crossbeam in a first direction. The crossbeam is movable in a second direction, and in particular, the first and second directions are orthogonal to each other. According to the invention, a plurality of temperature sensors are mounted on the crossbeam along the first direction, and the cutting machine has a temperature compensation function, within which the computing unit is designed to receive temperature data from the temperature sensors in real time and take it into consideration for controlling the cutting machine.

[0021] According to one embodiment of the cutting machine of the present invention, the crossbeam has a machine body made of a first material, while the guide rail is made of a second material, wherein the first material and the second material have different longitudinal coefficients of thermal expansion.

[0022] In one embodiment, the first material is a plastic or fiber composite, particularly carbon fiber reinforced plastic (CFK) or glass fiber reinforced plastic (GFK), while the second material is a metal such as steel or aluminum.

[0023] In another embodiment, the temperature sensor is disposed between the guide rail and the machine body. In a particular embodiment, the guide rail is fixed to the machine body by means of screws, pins, or rivets, and the temperature sensor is mounted on the screws, pins, or rivets.

[0024] According to one embodiment of the cutting machine of the present invention, a plurality of temperature sensors are provided distributed on the horizontal axis, particularly at least four temperature sensors. By increasing the number of temperature sensors distributed on the horizontal axis, the accuracy of the temperature compensation function can be advantageously improved.

[0025] In another embodiment of the cutting machine according to the invention, the temperature sensor is mounted on a guide rail.

[0026] In one particular embodiment, the temperature sensor is mounted on the guide rail by means of screws, pins, or rivets. Alternatively, the guide rail is fixed to the machine body by means of screws, pins, or rivets, and the temperature sensor is mounted on the screws, pins, or rivets.

[0027] In another embodiment, the processing assembly is movable along two or more parallel guide rails in a first direction. In this case, the temperature sensor may be mounted on only one parallel guide rail, or alternatively on multiple, i.e., at least two or all of the parallel guide rails.

[0028] According to another embodiment of the cutting machine of the present invention, the control of the cutting machine includes defining the cutting path of the cutting device and / or guiding the cutting device along the defined cutting path. The computing unit can then be specifically designed to take temperature data into account when defining the cutting path.

[0029] According to another embodiment of the cutting machine of the present invention, the computing unit has a memory unit for storing a task sheet for cutting (or similar processing) a certain object and is designed to define a cutting path for the cutting device based on at least one stored task sheet and temperature data from a temperature sensor.

[0030] In one implementation, the computing unit is designed to take temperature data into account, in particular, in real time, to adjust the defined cutting path.

[0031] In one implementation, the adjustment of the cutting path is based on compensation values ​​stored in a transformation table (lookup table LUT).

[0032] Considering temperature data, the LUT may specifically include compensation values ​​retrieved from temperature data from several temperature sensors. The LUT can store compensation values ​​for different positions of the cutting device. Additionally, each compensation value may include a value for adjusting the cutting path in a first and second direction.

[0033] According to another embodiment of the cutting machine of the present invention, the computing unit is designed, within the temperature compensation function range, to consider only temperature data from a temperature sensor mounted along a first direction on the crossbeam, i.e., particularly on the guide rail or between the guide rail and the machine body. In another embodiment, the cutting machine does not have other temperature sensors, i.e., besides the temperature sensor mounted along the first direction on the crossbeam, on the guide rail, or between the guide rail and the machine body.

[0034] A second aspect of the invention relates to a method for controlling a cutting machine, particularly a cutting machine according to any one of the preceding claims. This method can be implemented herein as a computer-based method, executed wholly or partially by or within the computing unit of the cutting machine, particularly in a fully automatic manner without user intervention. The method includes:

[0035] - Retrieve cutting work orders for machining, especially cutting, objects on the working surface of a cutting machine equipped with tools fitted with cutting devices.

[0036] - The cutting path for the cutting device is defined based on the cutting task sheet.

[0037] - Continuously retrieve position data of the cutting device, including coordinates in at least a first direction and a second direction, from the position sensor of the gantry movement system positioned above the working surface, and

[0038] - Based on the location data, the cutting device is guided along the cutting path in at least a first direction and a second direction to process, and in particular, cut, the object.

[0039] According to the present invention, the method includes a temperature compensation function, which has the function of continuously retrieving temperature data from one or more, for example, at least four temperature sensors, taking the temperature data into account to define the cutting path and / or to adjust the cutting path.

[0040] According to one embodiment of the method of the present invention, the temperature data is taken into account in real time for continuous adjustment of the defined cutting path. In one embodiment, the temperature data has also been taken into account for defining the cutting path.

[0041] According to another embodiment, the method includes retrieving compensation values ​​from a LUT based on temperature data from several temperature sensors. Here, compensation values ​​for different positions of the cutting device can be stored in the LUT. Additionally, each compensation value may include a value for adjusting the cutting path in a first direction and a second direction.

[0042] The third aspect of the invention relates to a computer program product having program code stored on a machine-readable carrier, designed to perform a cutting machine operation method, particularly wherein the program runs in the computing unit of the cutting machine in the first or second aspect of the invention. Attached Figure Description

[0043] The following detailed description of the cutting machine and method according to the present invention, illustrated in the figures, will also illustrate other advantages of the invention, as specifically shown below:

[0044] Figure 1 An embodiment of the cutting machine of the present invention is shown;

[0045] Figure 2 The image shows a beam of a cutting machine with guide rails and a temperature sensor mounted thereon.

[0046] Figures 3a to 3b The temperature sensor is shown mounted on the guide rail; and

[0047] Figure 4 A flowchart illustrating an embodiment of the method for controlling a cutting machine according to the present invention is shown. Detailed Implementation

[0048] Figure 1This type of gantry-type cutting machine 1 is shown. As a flatbed cutting machine, it has a table including a flat working surface 10 on which the object to be cut 4 can be placed.

[0049] A machining assembly 12, having a cutting device 3 and tools mounted therein, is disposed above the working surface 10. The tools are designed as cutting tools and have blades for cutting objects 4. Optionally, the cutting tools or blades can be automatically changed. This tool-changing function is described, for example, in EP3689537A1. The machining assembly 12 is kinetically movable relative to the working surface 10 in at least two dimensions, so that it can be moved to every point on the working surface 10. For this purpose, the machining assembly 12 is movably mounted on a crossbeam 11 in a first direction X, and the crossbeam is movably mounted on a table in a second direction Y. The crossbeam 11 and the machining assembly 12 together form at least part of the gantry movement system of the machine 1 as a "crossbeam assembly". A linear positioning system having position marks along the longitudinal and transverse axes of the gantry movement system and corresponding position sensors on the crossbeam 11 and the machining assembly 12 allows determination of the current position (not shown here) of the machining assembly 12 relative to the working surface in the first direction X and the second direction Y. A length measurement system for determining the relative position of the axis can, for example, be an incremental length measurement system with electronic measurement value detection and a comprehensive gauge based on material or optical operation.

[0050] Furthermore, the cutting machine 1 has a computing unit 2. It can be designed as having an external computer with a data connection to the machine 1, as shown here, or integrated into the machine 1 itself as an internal control unit. The cutting machine 1 may also have an additional operating table, into which the computing unit 2 or a portion thereof is integrated.

[0051] The computing unit 2 includes a processor whose computing power and the algorithm for controlling the cutting machine 1 correspond to the provided cutting task order. "Cutting" here does not unconditionally mean completely cutting through; therefore, the "cutting task order" may also include tasks for perforating, folding, or creasing an object, or tasks for performing similar processing steps, which can be executed in the cutting device 3 using this type of machine and corresponding tools. Additionally, the computing unit 2 has a data storage device for storing the cutting task order and possibly other data.

[0052] The computing unit 2 is designed to control the cutting device 3 and possibly a camera (not shown), particularly to move the processing unit 12 relative to the work surface 10. This camera of the cutting machine can be mounted on the processing unit 12, for example, and is specifically designed to identify the pattern 40 on the object 4 to ensure more precise positioning of the cutting tool 3 relative to the object 4. This is described, for example, in WO2018 / 184677A1.

[0053] To provide mobility for the processing assembly 12 along the crossbeam 11, the crossbeam has at least one guide rail 13, which is made of, for example, steel or other metals with similar properties. This guide rail is particularly designed as a profiled track and is integral (one-piece). Elsewhere, the body of the crossbeam 11 (machine body) is primarily made of carbon fiber reinforced plastic (CFK) or, in particular, a similar material with a low longitudinal coefficient of thermal expansion (similar to CFK in the longitudinal direction of the crossbeam). The CFK material of the crossbeam 11 differs significantly from the steel of the guide rail 13 in its longitudinal coefficient of thermal expansion. In particular, the longitudinal coefficient of thermal expansion of the CFK material is generally significantly smaller than that of the steel guide rail 13, at least in the longitudinal direction of the crossbeam. Therefore, undesirable bending of the crossbeam 11 may occur with temperature changes, thereby adversely altering the position of the cutting tool 3 relative to the object 4, which cannot be detected by the positioning system. This may result in erroneous cutting results.

[0054] Figure 2 An embodiment of a crossbeam 11 with two parallel horizontal guide rails 13, 13' is shown, along which a processing assembly 12 is movably mounted in a first direction X. According to the invention, one or more temperature sensors 5, 5', 5"', 5"' are disposed on the crossbeam 11, wherein the temperature sensors are distributed along the crossbeam in the first direction. In the embodiment shown here, four temperature sensors 5, 5', 5"', 5"' are disposed on the first guide rail 13, but more or fewer temperature sensors may also be provided. Here, the accuracy of the machine's temperature compensation function can be improved by increasing the number of temperature sensors distributed along the crossbeam.

[0055] The machine's gantry movement system has a beam assembly consisting of a beam 11 and machining units 12 with cutting tools movably mounted thereon. To provide linear feed axes for each machining unit 12, a linear guide mechanism with guide rails 13, 13' made of metal, particularly steel, is mounted on the machine body of the beam 11, which is made of plastic such as carbon fiber reinforced plastic (CFK). External environmental temperature effects, such as room temperature variations or sunlight exposure, and internal operational temperature effects, such as motor loss heat or frictional heat from the linear guide mechanism, can cause related displacement of the feed axes due to the significantly different longitudinal coefficients of thermal expansion of the two materials (the so-called bimetallic effect).

[0056] The CFK is composed of carbon fibers embedded in a substrate made of synthetic resin. Here, the mechanical properties of the hardened composite material primarily benefit from the tensile strength and rigidity of the carbon fibers. The substrate prevents the fibers from shifting relative to each other under stress. The CFK-machine body of the crossbeam 11 can, in particular, have a layered structure, which thus exhibits almost no longitudinal length variation with temperature changes. Therefore, in principle, all additional components with a non-zero longitudinal coefficient of thermal expansion can be considered as disturbance parameters. Here, the steel guide rails 13, 13', designed as guide rail profiles, form the components with the greatest influence on the thermal behavior of the feed shaft in this configuration, as they generate the greatest thermal force with respect to spacing due to their material and cross-section, as well as their continuous length (monolithic mounting). Other possible additional components (such as the secondary portion of the linear motor) contribute only a relatively slight and therefore largely negligible contribution to the total displacement due to their cross-section and their implementation as discontinuous segmented parts. Therefore, explicit compensation for shaft displacement can be achieved simply by knowing the guide rail temperature. The thermally induced displacement of the linear feed axis of the CFK-steel composite material can therefore advantageously be compensated solely by obtaining the temperature of the disturbance parameter. For this purpose, the temperature of the disturbance parameter is measured at multiple locations along the feed axis using temperature sensors 5, 5', 5"', 5"', and the position is corrected by the NC controller using pre-stored compensation values. The combination of the CFK body of the crossbeam 11 with the steel guides 13, 13' results in a specific thermal behavior for the overall system, which depends on the stiffness values ​​and longitudinal coefficient of thermal expansion of the two different components. The thermal behavior of the overall system can be determined in advance by measurement and / or simulation, thereby determining the required position correction values ​​and storing them in the memory of the cutting machine or the computing unit.

[0057] By obtaining the guide rail temperature at multiple locations along the movement path of the processing unit 12, localized temperature variations, such as those caused by direct sunlight or by uneven, localized axial movement, can also be obtained. A targeted distribution of more temperature sensors 5, 5', 5"', 5"' and their respective machine-related sensors along the transverse axis could, in principle, lead to a more accurate understanding of the temperature distribution.

[0058] Alternatively, it is feasible to use guide rails made of materials other than steel, especially aluminum guide rails. Here, the base profile of the guide rail can be made of aluminum alloy, and the roller raceways can be small-sized (mostly press-fit) steel profiles. Generally, this type of aluminum alloy guide rail mechanism is mainly used in applications with low loads, low precision requirements, and / or strict requirements for small quantities of material, such as in handling technology, installation technology, conveying technology, and lightweight machine structures, and also in cutting machines, either as the main guide mechanism or as an additional auxiliary guide mechanism. Even with aluminum guide rails, a bimetallic effect and undesirable results occur when combined with an FK beam.

[0059] Figure 3a and Figure 3b An exemplary temperature sensor 5 is shown in detail, which is mounted behind the guide rail 13 to measure the temperature of the guide rail 13 at this location. Figure 3a This diagram shows the external appearance of the guide rail 13 together with the temperature sensor 5 mounted thereafter. Figure 3b The cross-section is shown.

[0060] Through cable 51, temperature sensor 5 can be powered on one hand, and temperature data containing information about the measured temperature is sent to the calculation unit of the cutting machine on the other hand.

[0061] The temperature sensor 5 has an annular plate 52 designed to be mounted on a screw 53, ensuring it always contacts the guide rail 13 and securely fixing the temperature sensor 5 in place. The screw 53 may have a cap 55 on its outer surface. If the guide rail 13 is screwed onto the machine body 17 made of CFK, the temperature sensor 5 can also be mounted on the screw 53 that secures the guide rail 13 to the machine body 17 in the same manner. Instead of the screw 53 shown here, other fasteners, such as pins or rivets, can be used to mount the temperature sensor 5.

[0062] Figure 4 A flowchart illustrating one embodiment of the method 100 for controlling a cutting machine according to the present invention is shown.

[0063] It is known from the prior art that a cutting task order or other processing task order (instead of cutting, similar processes such as piercing, folding, or grooving of an object) can be retrieved from the machine memory of 110, and based on this, 120 is defined for the cutting path (or processing path) of a tool such as a knife. Figure 1As shown, current position data 130 is continuously retrieved from a position sensor of a gantry movement system with a crossbeam and machining assembly, for example, positioned above the machine's work surface. Based on this position data, the tool is guided to move along a defined cutting path and thus can perform the object machining entrusted in the cutting task sheet, particularly the cutting of the object 140.

[0064] According to the present invention, in addition to steps 110, 120, 130, and 140 of method 100 as described above, 150 temperature sensors or, in particular, multiple temperature sensors 5, 5', 5"', 5"', for example, at least four such sensors are continuously retrieved. Figure 2 The temperature data of temperature sensors 5, 5', 5" and 5"' distributed on the crossbeam guide rail are shown and are automatically considered by the calculation unit for controlling the cutting machine.

[0065] exist Figure 4 In the purely exemplary method shown, temperature data is considered to define the cutting path at 120°. To this end, the temperature distribution present at the defined 120° is determined. To compensate for the bending of machine parts, particularly the beam, caused by this temperature distribution, the coordinates of the cutting path are adjusted accordingly.

[0066] Additionally, in method 100 shown here, a continuous check 155 is performed to determine whether the temperature distribution has changed within the relevant range. If not, the tool moves further along the defined cutting path to cut 140 (or otherwise process) the object according to the cutting task. If the temperature distribution has changed within the relevant range, the cutting path can be adjusted accordingly in real time 160, allowing the tool to continue moving along the adjusted cutting path to cut 140 (or otherwise process) the object according to the cutting task. This continuous check 155 of the temperature distribution and the possible adjustment of the cutting path can be repeated until the cutting task is satisfied 145. Then, method 100 can be repeated with a new cutting task retrieved for the 110 cores.

[0067] Many possible temperature distributions can be stored in transformation table 21 (lookup table LUT). Therefore, a corresponding correction value can be specified for each possible combination of temperature values ​​from each existing temperature sensor. The temperature values ​​stored in the LUT can, for example, be expressed in tenths of a degree Celsius increments. Optionally, for example, when the beam bending caused by a certain temperature distribution affects the cutting results more strongly in one region than in another, multiple correction values ​​can be specified for each temperature distribution for multiple possible tool positions or position regions. LUT 21 can be stored, for example, in the memory unit of the cutting machine's computing unit.

[0068] Alternatively, one or more mathematical formulas can be stored to determine correction values ​​from temperature distributions using a calculation unit. Optionally, multiple formulas can be stored for many possible locations or regions of the tool.

[0069] When checking whether the temperature distribution at 155°C has changed within the relevant range, one can check, for example, whether one or more of the obtained temperature values ​​have exceeded predetermined limits. Alternatively or supplementarily, one can also check whether the resulting beam bending has a related effect, such as whether the tool position deviation at one or more locations exceeds a predetermined limit, which may optionally depend on the accuracy requirements of the cutting task sheet.

[0070] Obviously, the figures shown are only schematic representations of possible embodiments. Different approaches can also be combined with each other and with prior art devices or methods.

Claims

1. A cutting machine (1), the cutting machine (1) comprising: - A working surface (10), said working surface (10) being designed to accommodate at least one object (4) to be cut, - A gantry moving system, which is positioned above the working surface (10), the gantry moving system having a crossbeam (11) and a processing assembly (12), and - A computing unit (2), the computing unit (2) having a processor with computing power and an algorithm for controlling the cutting machine (1), wherein, The processing unit (12) has a cutting device (3), and the control includes defining a cutting path for the cutting device (3) and / or guiding the cutting device (3) along the defined cutting path. in, - The processing unit (12) is movable along at least one guide rail (13) of the crossbeam (11) in a first direction (X), and -The crossbeam (11) is movable in the second direction (Y). Its characteristics are, - A plurality of temperature sensors (5,5',5'',5''') are mounted on the crossbeam (11) along the first direction (X), and, - The cutting machine (1) has a temperature compensation function, and within its range, the computing unit (2) is designed to receive the temperature data of the temperature sensor (5,5',5'',5''') in real time and consider it for controlling the cutting machine (1), wherein, - The computing unit (2) is designed to take the temperature data into account in real time to adjust the defined cutting path; and / or The computing unit (2) has a memory unit for storing a task sheet for cutting a certain object (4) and is designed to define a cutting path for the cutting device (3) based on at least one stored task sheet and the temperature data of the temperature sensor (5,5',5'',5''').

2. The cutting machine (1) according to claim 1, characterized in that, The crossbeam (11) has a machine body (17) made of a first material, and the guide rail (13) is made of a second material, wherein the first material and the second material have different longitudinal coefficients of thermal expansion.

3. The cutting machine (1) according to claim 2, characterized in that, The first material is a plastic or fiber composite material, and the second material is a metal.

4. The cutting machine (1) according to claim 2 or 3, characterized in that, The temperature sensors (5,5',5'',5''') are positioned between the guide rail (13) and the machine body (17), wherein, - The guide rail (13) is fixed to the machine body (17) by means of screws (53), pins or rivets, and the temperature sensor (5,5',5'',5''') is mounted on the screws (53), pins or rivets, or, - The temperature sensor (5,5',5'',5''') is mounted on a separate screw (53), pin, or rivet.

5. The cutting machine (1) according to claim 1, characterized in that, in At least four temperature sensors (5, 5', 5'', 5''') are mounted on the crossbeam (11) along the first direction (X).

6. The cutting machine (1) according to claim 1, characterized in that, The temperature sensor (5,5',5'',5''') is mounted on the guide rail (13), wherein, - The temperature sensors (5,5',5'',5''') are mounted on the guide rail (13) by means of screws (53), pins or rivets; and / or - The processing unit (12) is movable in the first direction (X) along two or more parallel guide rails (13, 13'), wherein the temperature sensor (5, 5', 5'', 5''') is mounted on at least two of the parallel guide rails (13, 13').

7. The cutting machine (1) according to claim 1, characterized in that, The adjustment of the cutting path is based on compensation values ​​stored in the transformation table (21), wherein, - Considering that the temperature data includes looking up the compensation value in the conversion table (21) based on the temperature data of each temperature sensor (5,5',5'',5'''), - The conversion table (21) stores compensation values ​​for different positions of the cutting device (3), and / or - The compensation value includes a value for adjusting the cutting path in the first direction (X) and the second direction (Y), respectively.

8. The cutting machine (1) according to claim 1, characterized in that, - The computing unit (2) is designed within the temperature compensation function range to consider only the temperature data from the following temperature sensors (5, 5', 5'', 5''') to control the cutting machine (1), the temperature sensors being mounted on the crossbeam (11) along the first direction (X), and / or - The cutting machine does not have any temperature sensors other than the temperature sensors (5,5',5'',5''') mounted on the crossbeam (11) along the first direction (X).

9. The cutting machine (1) according to claim 1, characterized in that, The first direction (X) and the second direction (Y) are orthogonal to each other.

10. The cutting machine (1) according to claim 3, characterized in that, The first material is carbon fiber reinforced plastic or glass fiber reinforced plastic.

11. The cutting machine (1) according to claim 3, characterized in that, The second material is steel.

12. The cutting machine (1) according to claim 5, characterized in that, The plurality of temperature sensors includes at least four temperature sensors (5, 5', 5'', 5''').

13. The cutting machine (1) according to claim 8, characterized in that, - The computing unit (2) is designed within the temperature compensation function range to only consider the temperature data of the following temperature sensors (5,5',5'',5''') to control the cutting machine (1), the temperature sensors being mounted on the guide rail (13) or between the guide rail (13) and the machine body (17).

14. The cutting machine (1) according to claim 8, characterized in that, - The cutting machine does not have any temperature sensors other than the temperature sensors (5,5',5'',5''') mounted on the guide rail (13) or between the guide rail (13) and the machine body (17).

15. A computer-implemented method (100) for controlling a cutting machine according to any one of the preceding claims, the method comprising: - Retrieve a cutting task order for processing an object (4) on the working surface (10) of a cutting machine with tools loaded into the cutting device (3). - The cutting path for the cutting device (3) is defined based on the cutting task sheet. - Position data of the cutting device (3) is continuously retrieved from a position sensor of a gantry movement system positioned above the working surface (10), wherein the position data includes coordinates in at least a first direction (X) and a second direction (Y), and - Based on the position data, the cutting device (3) is guided along the cutting path in at least the first direction (X) and the second direction (Y) to process the object (4), characterized in that it has a temperature compensation function, the temperature compensation function including: Temperature data is continuously retrieved from multiple temperature sensors (5,5',5'',5''') arranged along the first direction (X) on the crossbeam (11) of the gantry moving system, the crossbeam (11) being movable along the second direction (Y), and - The temperature data is taken into account to define the cutting path and / or to adjust the cutting path.

16. The method (100) according to claim 15, characterized in that, The temperature data is taken into account for real-time continuous adjustment of the defined cutting path.

17. The method (100) according to claim 15 or 16, characterized in that, The compensation value is retrieved from the conversion table (21) based on the temperature data of each temperature sensor (5,5',5'',5'''). - The conversion table (21) stores compensation values ​​for different positions of the cutting device (3), and / or - The compensation value includes a value for adjusting the cutting path in the first direction (X) and the second direction (Y), respectively.

18. The method (100) according to claim 15, characterized in that, The method includes: - Retrieve a cutting task order for cutting an object (4) on the working surface (10) of a cutting machine with tools loaded into the cutting device (3).

19. The method (100) according to claim 15, characterized in that, The method includes: - Based on the location data, guide the cutting device (3) along the cutting path in at least the first direction (X) and the second direction (Y) to cut the object (4).

20. The method (100) according to claim 16, characterized in that, The temperature data is also considered in defining the cutting path.

21. A computer program product having program code stored on a machine-readable carrier, the computer program product being used to perform a method (100) for operating a cutting machine (1) according to any one of claims 15 to 20.

22. The computer program product according to claim 21, characterized in that, The computer program runs in the computing unit (2) of the cutting machine according to any one of claims 1 to 14.

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