Machine tool, system and method for setting an output parameter of an output unit of a machine tool

Abstract

The invention relates to a machine tool (10), in particular a grinding and / or polishing machine, with a communication unit (12) for communication with at least one separately designed control unit (14) and with at least one output unit (16), in particular a lighting unit, with at least one adjustable output parameter, in particular lighting parameter. It is proposed that the communication unit (12) is configured to receive control commands from the control unit (14) which set the output parameter depending on a process-related group membership.

Description

Prior ArtA machine tool having a communication unit for communication with at least one separately designed control unit and having at least one output unit having at least one adjustable output parameter has already been proposed.Disclosure of the InventionThe invention is based on a machine tool, in particular a grinding machine and / or a polishing machine, having a communication unit for communication with at least one separately designed control unit and having at least one output unit, in particular a lighting unit, having at least one adjustable output parameter, in particular lighting parameter.It is proposed that the communication unit is designed to receive from the control unit control commands which set the output parameter as a function of a process-dependent group membership.The configuration of the machine tool according to the invention makes it possible to achieve a particularly simple distinction from other machine tools. A particularly simple assignment of the machine tool can be realized. Advantageously, a visual distinction and / or assignment of the machine tool can be realized in a particularly space-saving manner and / or in particular free of additional required accessories. The assignment of the machine tool can be carried out particularly comfortably and / or flexibly and in particular in a time-saving manner. A particularly high level of working comfort and / or a particularly high level of working safety can advantageously be achieved. In particular, a structured mode of operation can be supported particularly easily and / or reliably.The machine tool is preferably designed as a hand-held machine tool. The machine tool is preferably designed as a grinding and / or polishing machine, preferably as a flower grinder, in particular as an oscillating grinder or as an eccentric grinder. Alternatively, however, it is also conceivable for the machine tool to be designed as an oscillating saw, as an angle grinder, as a milling machine, as a drilling machine, as a saber saw, as a screwdriver, as a chain saw or as another machine tool that appears expedient to a person skilled in the art. The machine tool can be designed as a battery-operated machine tool or as a cable-bound machine tool.Furthermore, it is alternatively conceivable that the machine tool is designed as a garden tool or the like, for example as a hedge trimmer, as a lawn mower, in particular as a lawn mower robot, as a sprinkler system, as a tree trimmer or the like.The communication unit is preferably configured for wireless data transmission, in particular with the control unit, for example by means of Bluetooth, WLAN, mobile radio or the like. Alternatively or additionally, it is also conceivable that the communication unit is configured for wired data transmission with the control unit. The communication unit is preferably arranged on, in particular in, a housing of the machine tool.The output unit is designed, for example, as an optical, haptic and / or acoustic output unit. The output unit is preferably designed as a lighting unit. The output parameter can be, for example, a lighting parameter, in particular a lighting color, a lighting duration, a lighting pattern or the like, a volume, a pitch, a tone duration, a vibration intensity, a vibration duration, a vibration pattern, a combination of these or the like.The control unit is in particular formed separately from the machine tool. The control unit can be designed, for example, as a central computer, as a cloud, as a smartphone, as a remote control, as a laptop, as a gateway or the like. The control unit comprises in particular at least one processor and a storage element and an operating program stored on the storage element. The storage element is preferably designed as a digital storage medium, for example as a hard disk or the like.In particular, a process-related group membership can be assigned to the machine tool by means of the control unit. The process-related group membership represents in particular an assignment of the machine tool to a working group and / or a working process. An assignment of a process-related group membership of the machine tool may be dependent, for example, on a work plan to be carried out and / or on properties of the machine tool, for example a rotational speed range, a load range, a battery power, or the like.It is conceivable that a process-related group membership can be assigned to the machine tool manually by an operator, in particular via an input unit of the control unit. The input unit can be designed, for example, as a keyboard, as a touchscreen, as a keypad, as a rotary wheel, as a switch or the like.Alternatively or additionally, it is conceivable that the control unit is provided to assign a process-related group membership to the machine tool at least partially automatically at least as a function of a work plan to be performed. The work plan can be stored on the control unit, for example.In addition, it is conceivable that at least one operating parameter and / or a safety parameter of the machine tool can be adapted via the control commands transmitted from the control unit to the machine tool. It is conceivable that an adaptation of the at least one operating parameter and / or of the at least one safety parameter of the machine tool depends on the respective process-related group membership of the machine tool. The operating parameter can be, for example, a rotational speed range, a rotational direction, an application duration or the like. For example, it is conceivable that the machine tool automatically switches off when the application duration is exceeded, in particular in order to avoid excessively long grinding or polishing at an application point, for example in order to avoid grinding through a paint layer. The safety parameter can be, for example, a temperature limit value for a shutdown function, a kick-back function or the like.It is furthermore proposed that the output unit has at least one output element which is provided for outputting the process-related group membership in at least one operating state. A particularly simple distinction from other machine tools and / or groups can be achieved. A particularly simple assignment of the machine tool can be realized. "Provided" is to be understood as meaning specially configured, specially designed and / or specially equipped. The fact that an object is provided for a specific function is to be understood to mean that the object fulfills and / or executes this specific function in at least one application state and / or operating state. The output element can be configured, for example, as a light strip, as a light ring, as a light circle, as a U-shaped light element, as a loudspeaker, as a haptic output means or the like. It is also conceivable for the output element to be designed as an analog optical display element. The output element preferably has at least one light source and / or at least one light guide. The light guide can be designed, for example, as a / a transparent / r fiber, tube or rod. It is also conceivable for the output element to have an emission element, in particular a light-scattering element, for example in the form of a roughening, a scattering glass, plastic or ceramic lamina, a scattering plastic film or the like. Preferably, the light guide is arranged between the light source and the emitting element. The light guide is provided in particular for guiding light from the light source to the emission element. It is also conceivable for the emitting element to be part of the light guide or to form the light guide. Alternatively, it is conceivable that the output element is formed free of an emission element and / or a light guide. The light source is configured, for example, as an LED, preferably as an RGB LED, as an incandescent lamp or as another illuminant that appears expedient to a person skilled in the art. It is conceivable for the LED to be designed as a surface-mounted component which is mounted in particular on a printed circuit board of the machine tool.Furthermore, it is proposed that the output unit is designed as a work lighting. Advantageously, a particularly high functionality can be achieved particularly cost-effectively. A process-related group membership of the machine tool can be made visible in a particularly simple and / or space-saving manner. The output unit is provided in particular for illuminating a workpiece to be machined in at least one operating state. It is conceivable that the at least one output element, in particular designed as an optical output element, is part of the working illumination. Alternatively, however, it is also conceivable for the output unit to be formed separately from the work lighting.It is furthermore proposed that the output parameter has a luminous color. Advantageously, the process-related group membership of the machine tool can be recognized particularly easily. Advantageously, an intended use of the machine tool can be checked and / or detected particularly quickly and / or with particularly extensive visibility. Preferably, a luminous colour is dependent on the group membership in the process. It is conceivable that the output unit can generate different luminous colors by means of the output element, or that the output unit has a plurality of output elements for generating different luminous colors. The process-related group membership is characterized in particular by the output parameter, in particular the luminous color.It is also proposed that the machine tool has a drive unit, wherein the output unit is provided to output the process-related group membership in a switched-off state of the drive unit. Advantageously, a disturbance of a working execution can be counteracted by outputting the process-dependent group membership. The drive unit preferably has an electric motor. Alternatively, however, it is also conceivable for the drive unit to have an internal combustion engine. Alternatively, it is also conceivable for the output unit to be provided to output the process-related group membership in a switched-on state of the drive unit, for example continuously or temporarily.It is also proposed that the output unit is provided to output the process-related group membership after the drive unit is switched off. Advantageously, the process-related group membership can be automatically output. It is possible to counteract interference of the operator during the operation with the machine tool by outputting the group membership related to the process. Advantageously, a particularly comfortable and / or reliable output of the process-dependent group membership can take place. For example, the output unit is configured such that the output unit outputs the process-related group membership for a previously already defined time period, for example at least 1 s, preferably at least 10 s, preferably at least 60 s, or permanently, starting from a shutdown time of the drive unit or after a previously already defined time interval, for example 1 s, 3 s, 10 s or the like.It is furthermore proposed that the output unit is provided to output the process-related group membership at least temporarily during operation of the output unit as a work lighting. Advantageously, the process-related group membership can be output and in particular detected via the output unit during operation as working illumination. The process-related group membership can be output via the output unit as working illumination during operation of the output unit with at the same time particularly little impairment of illumination quality. For example, the output unit is provided to output the process-related group membership temporarily for a previously already defined time period during operation of the output unit as working lighting, for example for at least 500 ms, in particular at least 1 s and in particular for at most 2 s, preferably at most 1 s. Alternatively, it is also conceivable for the output unit to be provided for the purpose of outputting the process-related group membership temporarily for less than 500 ms or for more than 2 s during operation of the output unit as working lighting. Preferably, the output unit is provided in an operation of the output unit as a working lighting for an operation with a neutral luminous color, for example white, light blue or the like. When outputting the process-related group membership, the output unit is provided for operation with a blue, red, green, orange, yellow or similar luminous color, for example, depending on the process-related group membership. For example, the output unit is configured such that a ratio of an output duration of the process-dependent group membership in an operation of the output unit as a working illumination compared to an output duration of the neutral luminous color is at least 1 s to 2 s, and at most 2 s to 30 s, preferably 3 s to 20 s. Alternatively, however, other conditions that appear expedient to a person skilled in the art are also conceivable.Furthermore, it is proposed that the machine tool has at least one insert tool which has at least one display element for displaying information about a process-dependent group membership. An improper combination of machine tool and insert tool can be advantageously counteracted. The display element can be designed, for example, as a paint system of the insert tool, as a sticker, as a lighting element or the like. The insert tool can be designed, for example, as a grinding wheel, as a saw blade, as a screw bit, as a drill or as another insert tool that appears expedient to a person skilled in the art. The display element preferably has a color. In particular, the process-related group membership of the insert tool and of the machine tool can be adjusted via the display element, preferably the color of the display element, and the output parameter, in particular the luminous color, of the output unit.The invention furthermore proceeds from a system having at least one machine tool, in particular the machine tool already mentioned above, and having a control unit which is formed separately from the machine tool, in particular the control unit already mentioned above, wherein the machine tool has at least one output unit, in particular the light unit already mentioned above, having at least one adjustable output parameter, in particular the light parameter already mentioned above. It is proposed that the control unit is provided to set the output parameter as a function of a process-related group membership of the machine tool, in particular the group membership already mentioned above. It is conceivable that the system comprises only the one machine tool or a plurality of machine tools. A particularly simple distinction from a multiplicity of machine tools can be achieved. A particularly simple assignment of the machine tool / s can be realized. Advantageously, a visual distinction and / or assignment of the machine tool / s can be realized in a particularly space-saving manner and / or in particular free of additional required accessories. The assignment of the machine tool / s can be carried out in a particularly convenient and / or flexible manner and in particular in a time-saving manner. A particularly high level of working comfort and / or a particularly high level of working safety can advantageously be achieved. In particular, a structured mode of operation can be supported particularly easily and / or reliably.In addition, the invention is based on a method for setting an output parameter, in particular the output parameter already mentioned above, in particular the lighting parameter, of an output unit, in particular the output unit already mentioned above, in particular the lighting unit, of a machine tool, in particular the machine tool already mentioned above. It is proposed that the output parameter is set as a function of a process-dependent group membership, in particular the group membership already mentioned above, by means of a control unit which is formed separately from the machine tool, in particular the control unit already mentioned above. For example, in a method step, in particular in a planning step, the work plan is created. The work plan has, for example, various requirements, in particular at least one or a plurality of process parameters, for carrying out the work plan, for example information on a required type and / or number of machine tools, information on a product property of the required machine tools, for example a rotational speed range, a load range, a battery power or the like, information on a material to be machined, information on a required work time, information on a planned completion date, information on an environmental characteristic variable of a work environment, for example an environmental temperature, an atmospheric humidity of the work environment, coordinates of the work environment or the like. Depending on the work plan, the control unit allocates the at least one machine tool to a group. In a further method step, in particular in an adjustment step, control commands are preferably transmitted to the at least one machine tool. By means of the control commands, the at least one output parameter of the output unit of the at least one machine tool is set as a function of the process-dependent group membership. In particular in an additional method step, preferably in an output step, the process-related group membership is output via the output unit, preferably in the form of a color assigned to the corresponding group. A particularly simple distinction of machine tools can advantageously be achieved. A particularly simple assignment of the machine tool can be realized. Advantageously, a visual distinction and / or assignment of the machine tool can be realized in a particularly space-saving manner and / or in particular free of additional required accessories. The assignment of the machine tool can be carried out particularly comfortably and / or flexibly and in particular in a time-saving manner. A particularly high level of working comfort and / or a particularly high level of working safety can advantageously be achieved. In particular, a structured mode of operation can be supported particularly easily and / or reliably.The machine tool according to the invention, the system according to the invention and / or the method according to the invention are / are not intended to be limited to the application and embodiment described above. In particular, the machine tool according to the invention, the system according to the invention and / or the method according to the invention for fulfilling a mode of operation described herein can / can have a number which differs from a number of individual elements, components and units and method steps mentioned herein. In addition, in the value ranges specified in this disclosure, values lying within the stated limits should also be considered as disclosed and usable as desired.DRAWINGFurther advantages are evident from the following description of the drawings. The drawing shows an embodiment of the invention. The drawings, specification and claims contain numerous features in combination. The skilled person will expediently also consider the features individually and summarize them to form meaningful further combinations.The following are shown: FIG. 1 shows a system according to the invention with a control unit and two machine tools, FIG. 2 is a cross-sectional view of a portion of one of the two machine tools of FIG. 1 ; and FIG. 3 shows a schematic sequence of a method for setting an output parameter of a respective output unit of the machine tools.DESCRIPTION OF THE EMBODIMENTFIG. 1 shows a system 28 with two machine tools 10, 30 and with a control unit 14 formed separately from the machine tools 10, 30. alternatively, it is conceivable that the system 28 has only one machine tool 10, 30 or more than two machine tools 10, 30. Furthermore, it is alternatively also conceivable for the system 28 to have a further control unit which is arranged between the machine tools 10, 30 and the control unit 14 in terms of data technology.The machine tools 10, 30 are designed as hand-held machine tools. Alternatively, it is also conceivable that at least one of the machine tools 10, 30 is designed as a garden appliance, for example as a hedge trimmer, as a lawn mower, in particular as a lawn mower robot, as a sprinkler system, as a tree trimmer or the like.A machine tool 10 of the machine tools 10, 30 is designed as a grinding and / or polishing machine, preferably as a flower grinder, in particular as a vibratory grinder or eccentric grinder. Alternatively, however, it is also conceivable for the machine tool 10 to be designed as an oscillating saw, as an angle grinder, as a milling machine, as a drilling machine, as a saber saw, as a screwdriver, as a chain saw or as another machine tool that appears expedient to a person skilled in the art. A further machine tool 30 of the machine tools 10, 30 is here exemplarily designed as an oscillatory saw.The control unit 14 can be designed, for example, as a central computer, as a cloud, as a smartphone, as a remote control, as a laptop, as a gateway or the like. The control unit 14 comprises in particular at least one processor and a storage element and an operating program stored on the storage element. The storage element is preferably designed as a digital storage medium, for example as a hard disk or the like.The machine tools 10, 30 each have an output unit 16. The output units 16 each have at least one adjustable output parameter. The output parameter is a lighting parameter. The output parameter comprises a luminous colour. Alternatively or additionally, it is conceivable that the output parameter has a lighting duration, a lighting pattern or the like, a volume, a pitch, a tone duration, a vibration intensity, a vibration duration, a vibration pattern, a combination of these or the like.The output units 16 are each designed as optical output units. Alternatively or additionally, it is conceivable that the output units 16 are designed as haptic and / or acoustic output units. The output units 16 are designed as light units.By means of the control unit 14, a process-related group membership can be assigned to the machine tools 10, 30. The respective process-related group membership represents an assignment of the respective machine tool 10, 30 to a working group and / or a working process.An assignment of a process-related group membership of the machine tools 10, 30 may be dependent, for example, on a work plan to be performed and / or on properties of the machine tools 10, 30, for example a rotational speed range, a load range, a battery power, or the like.It is conceivable that the process-related group membership can be manually set by an operator, in particular via an input unit (not shown here) of the control unit 14.Alternatively or additionally, it is conceivable that the control unit 14 is provided to assign a process-related group membership to the machine tools 10, 30 at least partially automatically at least as a function of the work plan to be performed, wherein the work plan is stored on the control unit 14, for example.The work plan has, for example, various requirements, in particular at least one or a plurality of process parameters, for carrying out the work plan, for example information on a required type and / or number of machine tools 10, 30, information on a product property of the required machine tools 10, 30, for example a rotational speed range, a load range, a battery power or the like, information on a material to be machined, information on a required work time, information on a planned completion date, information on an environmental characteristic variable of a work environment, for example an environmental temperature, an air humidity of the work environment, coordinates of the work environment or the like.The control unit 14 is provided to set the respective output parameter as a function of the process-dependent group membership of the respective machine tool 10, 30. The process-related group membership is characterized by the output parameter, in particular the luminous colour. If, for example, different process-related group memberships are assigned to the machine tools 10, 30, their output parameters, in particular the luminous color of the respective output unit 16, differ. If the machine tools 10, 30 have the same process-related group membership, the corresponding output parameters, in particular luminous colors, are identical.The machine tools 10, 30 each have a communication unit 12 for communication with the control unit 14. The communication units 12 are configured for wireless data transmission with the control unit 14, for example by means of Bluetooth, WLAN, mobile radio or the like. Alternatively or additionally, it is also conceivable for the communication units 12 to be configured for wired data transmission with the control unit 14, for example by means of a USB interface or the like. The communication units 12 are arranged on, in particular in, a respective housing 34 of the machine tools 10, 30.The communication units 12 are each designed to receive control commands from the control unit 14, which control commands set the respective output parameter as a function of the process-dependent group membership. In addition, it is conceivable that at least one operating parameter and / or one safety parameter of the machine tools 10, 30 can be adapted via the control commands transmitted from the control unit 14 to the machine tools 10, 30. It is conceivable that an adaptation of the at least one operating parameter and / or of the at least one safety parameter of the machine tools 10, 30 depends on the respective process-related group membership of the machine tools 10, 30. The operating parameter can be, for example, a rotational speed range, a rotational direction, an application duration or the like. For example, it is conceivable that the machine tool 10 automatically switches off when the respective application duration is exceeded, in particular in order to avoid excessively long grinding or polishing at an application point, for example in order to avoid grinding through a paint layer. The safety parameter can be, for example, a temperature limit value for a shutdown function, a kick-back function or the like.The output units 16 each have at least one output element 18. The at least one respective output element 18 is provided for outputting the process-related group membership in at least one operating state of the respective machine tool 10, 30.The output element 18 of the machine tool 10 is designed as a light ring. The output element 18 of the machine tool 10 is arranged in a region of a tool holder 36 of the machine tool 10. Alternatively, however, it is also conceivable for the output element 18 of the machine tool 10 to be arranged at a different position on the housing 34 of the machine tool 10, which appears expedient to a person skilled in the art. Alternatively, it is also conceivable for the output element 18 of the machine tool 10 to be designed as a light strip, as a circle of light, as a U-shaped light element, as a loudspeaker, as a haptic output means or the like. Furthermore, it is alternatively also conceivable for the output element 18 of the machine tool 10 to be designed as an analog optical display element.The output element 18 of the machine tool 10 has a plurality of light sources 40. Alternatively, however, it is also conceivable for the output element 18 to have only one light source 40. The light sources 40 are designed as LEDs, in particular as RGB LEDs. The light sources 40 are designed here as surface-mounted components, for example. The light sources 40 are arranged on a printed circuit board 38 of the machine tool 10. The printed circuit board 38 is here exemplarily of ring-shaped design. Alternatively, it is also conceivable for the printed circuit board 38 to be formed as rectangular, circular, polygonal or in another shape that appears expedient to a person skilled in the art.The output element 18 of the machine tool 10 has an emitting element 42. Alternatively, it is conceivable that the output element 18 of the machine tool 10 is formed free of radiation elements 42. The emission element 42 is designed as a light-scattering ring. Alternatively, it is conceivable that the emitting element 42 is designed in the form of a roughening, a scattering glass, plastic or ceramic plate, a scattering plastic film or the like.The output element 18 of the machine tool 10 encloses an output axle 44 of the machine tool 10 (cf. FIG. 2 ). The emitting element 42 is part of a protective cap 46 of the machine tool 10, in particular the protective cap 46 forms the emitting element 42.The output element 18 of the further machine tool 30 is here formed, for example, as a U-shaped luminous element. The output element 18 of the further machine tool 30 is arranged in a region of a tool holder 36 of the further machine tool 30.The output units 16 are designed as work lighting devices 20. The output units 16 are provided to illuminate a workpiece to be machined (not shown here) in at least one operating state. The output elements 18 are part of the respective work lighting 20.The machine tools 10, 30 each have a drive unit 22. The output units 16 are provided to output the process-related group membership in a switched-off state of the respective drive unit 22. The drive units 22 each have an electric motor. Alternatively, however, it is also conceivable for the drive units 22 to have an internal combustion engine. Alternatively, it is also conceivable for the output units 16 to be provided to output the respective process-related group membership in a switched-on state of the respective drive unit 22, for example continuously or temporarily.The output units 16 are provided to output the process-related group membership after the respective drive unit 22 is switched off. For example, the respective output unit 16 is configured such that the output unit 16 outputs the process-related group membership for a previously already defined time period, for example at least 1 s, preferably at least 10 s, preferably at least 60 s, or permanently, starting from a switch-off time of the respective drive unit 22 or after a previously already defined time interval, for example 1 s, 3 s, 10 s or the like.Alternatively or additionally, it is also conceivable that at least one of the output units 16 is provided to output the process-related group membership at least temporarily during operation of the respective output unit 16 as the working lighting 20. For example, the respective output unit 16 is provided to output the respective process-related group membership temporarily for a previously already defined time period during operation of the output unit 16 as the working lighting 20, for example for at least 500 ms, in particular at least 1 s and in particular for at most 2 s, preferably at most 1 s.The further machine tool 30 has an insert tool 24. The insert tool 24 has at least one display element 26 for displaying information about the group membership in process. The display element 26 is here designed as a label by way of example. Alternatively, however, it is also conceivable for the display element 26 to be designed as a paint system of the insert tool 24, as a lighting element or the like. The insert tool 24 is here designed as a saw blade, for example.The display element 26 here has a color, for example. Via the display element 26, preferably the color of the display element 26, and the output parameter, in particular the luminous color, of the respective output unit 16, the process-related group membership of the insert tool 24 and of the respective machine tool 10, 30 can be adjusted.FIG. 3 shows a schematic sequence of a method for setting the respective output parameter of the output units 16.In a method step, in particular in a planning step 48, the work plan is created. Depending on the work plan, a process-related group membership is assigned to the machine tools 10, 30 by means of the control unit 14.The respective output parameter is set, in particular in a further method step, preferably in a setting step 50, as a function of the respective process-dependent group membership by means of the control unit 14 formed separately from the machine tools 10, 30. In particular, in the setting step 50, control commands are transmitted to the machine tools 10, 30. By means of the control commands, the at least one output parameter of the respective output unit 16 of the machine tools 10, 30 is set as a function of the respective process-dependent group membership.In an additional method step, in particular in an output step 52, the process-related group membership is output via the respective output unit 16, in particular in the luminous color assigned to the respective process-related group membership.

Claims

Machine tool (10), in particular grinding and / or polishing machine, having a communication unit (12) for communication with at least one separately designed control unit (14) and having at least one output unit (16), in particular a lighting unit, having at least one adjustable output parameter, in particular lighting parameter, characterized in that the communication unit (12) is designed to receive from the control unit (14) control commands which set the output parameter as a function of a process-dependent group membership.Machine tool (10) according to Claim 1, characterized in that the output unit (16) has at least one output element (18) which is provided for outputting the process-dependent group membership in at least one operating state.Machine tool (10) according to Claim 1 or 2, characterized in that the output unit (16) is designed as a work lighting system (20).Machine tool (10) according to one of the preceding claims, characterized in that the output parameter has a luminous colour.Machine tool (10) according to Claim 2, characterized bya drive unit (22), wherein the output unit (16) is provided to output the process-related group membership in a switched-off state of the drive unit (22).Machine tool (10) according to Claim 5, characterized in that the output unit (16) is provided for outputting the process-related group membership after the drive unit (22) has been switched off.Machine tool (10) according to Claims 2 and 3, characterized in that the output unit (16) is provided for at least temporarily outputting the process-dependent group membership in an operation of the output unit (16) as a work lighting (20).Machine tool (10) according to one of the preceding claims, characterized byat least one insert tool (24) which has at least one display element (26) for displaying information about a process-dependent group membership.System (28) having at least one machine tool (10), in particular according to one of the preceding claims, and having a control unit (14) which is formed separately from the machine tool (10), wherein the machine tool (10) has at least one output unit (16), in particular a lighting unit, having at least one adjustable output parameter, in particular lighting parameter, characterized in that the control unit (14) is provided for setting the output parameter as a function of a process-dependent group membership of the machine tool (10).Method for setting an output parameter, in particular a lighting parameter, of an output unit (16), in particular a lighting unit, of a machine tool (10), in particular according to one of Claims 1 to 8, characterized in that the output parameter is set as a function of a process-dependent group membership by means of a control unit (14) which is formed separately from the machine tool (10).

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