Grinding machine for gear grinding
By setting up an isolation device on the gear grinding machine, the support structure and components are protected from the heat input of cooling fluid, and the problem of difficulty in achieving strict tolerances in gear grinding is solved, and higher machine accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202411162504.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-23
- Filing Date
- 2024-08-23
- Publication Date
- 2025-02-25
AI Technical Summary
In industrial mass production, it is difficult to achieve strict tolerance requirements during gear grinding, especially under the influence of temperature fluctuations and vibrations, which may lead to loss of machine accuracy.
A grinder for gear grinding is designed, provided with at least one isolation device to protect the support structure and components of the grinder from the flow of cooling fluid and sparks, and to keep the temperature of the relevant support structure and components constant.
Through the use of the isolation device, the support structure and components of the grinder are effectively protected, temperature fluctuations and machine accuracy losses caused by the heat input of cooling fluid are avoided, and reliable production with strict tolerances is ensured.
Smart Images
Figure CN119501199A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a grinding machine for gear grinding, which comprises: a tool spindle for receiving a gear tool; a workpiece spindle for receiving a workpiece to be meshed; a plurality of controlled machine axes for performing relative movements in order to cut the workpiece to be meshed by means of the gear tool; and a device for discharging a cooling fluid, which is arranged to introduce the cooling fluid into a chip removal area between the gear tool and the workpiece to be meshed during the cutting process. Background Art
[0002] The manufacture of gears usually includes the process steps of soft machining, hardening and hard finishing. Hard finishing is usually carried out by grinding, such as indexed tumbling or profile grinding.
[0003] When grinding gears, tighter and tighter tolerances are being demanded. This trend can be observed, for example, in the continuous indexing of spur gears for electric vehicles. Here, therefore, tolerances are often specified for production with deviations in the small single-digit micrometer range. Such tight tolerances are a particular challenge for machine manufacturers in industrial series production. Therefore, even slight changes in environmental influences such as temperature fluctuations, vibrations, etc. can lead to the fact that the tight tolerances specified for individual components cannot be met during series production. Summary of the invention
[0004] Against this background, the invention is based on the technical problem of providing a grinding machine for gear grinding which allows reliable production of gears with tight tolerances, in particular in industrial series production.
[0005] The aforementioned object is achieved according to the invention by a grinding machine for gear grinding according to independent claim 1. Further embodiments of the invention are apparent from the dependent claims and the following description.
[0006] According to the invention, a grinding machine for gear grinding is proposed, which has a tool spindle for receiving a gear tool, a workpiece spindle for receiving a workpiece to be meshed, a plurality of controlled machine axes for performing relative movements for machining the workpiece to be meshed by means of the gear tool, and a device for discharging a cooling fluid, which is arranged to introduce the cooling fluid into a chip removal area between the gear tool and the workpiece to be meshed during the machining process. The grinding machine is characterized in that at least one insulating device is provided to protect the support structure and / or components of the grinding machine from the influence of fluid flow and / or sparks.
[0007] Tests conducted by the applicant have shown that even a small heat input or heat release in individual areas of a grinding machine can lead to a loss of machine precision in the micrometer range with a small effect.
[0008] During gear grinding, a cooling fluid is usually introduced into the grinding contact in order to cool the workpiece and tool, reduce friction, remove chips, and remove debris from the tool and workpiece. The cooling fluid absorbs heat from the grinding contact of the components involved (i.e., the workpiece and tool) and is therefore heated in turn.
[0009] In this way, contact of heated cooling fluid with, for example, a machine frame can result in heat being introduced via the machine frame wetted by the cooling fluid into other components of the grinding machine connected to the machine frame, so that they expand due to temperature.
[0010] This means that the heat input of the cooling fluid into the machine frame can lead to temperature-induced expansions of the machine shaft or its support, which can lead to adverse effects on the machine precision in the small micrometer range. Likewise, the non-wetting of the machine frame by the cooling fluid can lead to changes in the stable temperature state of the machine tool and, for example, cooling of the machine frame and the components connected thereto can occur during machining breaks, that is, temperature fluctuations due to the non-heating of the machine frame by the cooling fluid.
[0011] Furthermore, during conventional machine operation, the temperature of the cooling fluid arriving in the direction of the machine frame also changes, since the cooling fluid is continuously discharged during the workpiece change and is not heated by the grinding contact of the cutting during the workpiece change. The continuous discharge of cooling fluid also during the machining breaks contributes to achieving a uniform cooling volume flow during the grinding process, which would not be possible if the cooling volume flow was constantly switched on and off.
[0012] It therefore applies to the present example that both the heat input by the cooling fluid and the absence of such heat input as well as temperature changes during normal grinding operation can lead to fluctuations in the machine precision, since the actual heat input by the cooling fluid and the associated influence on the machine tool cannot be planned at any time and cannot be taken into account or compensated for with the aid of the machine control.
[0013] The insulating device proposed according to the invention now seeks to protect the supporting structures and / or components of the grinding machine from such fluid flows and in this way keeps the temperature of the relevant supporting structures and / or components as constant as possible. The insulating device according to the invention seeks in particular to thermally decouple the relevant supporting structures and / or components of the grinding machine from the fluid flow. This also applies to protection against sparks.
[0014] The above examples illustrate the relationship or influence of cooling fluid during the grinding process in an intuitive manner. However, in the same way, environmental influences (such as air flow) or ventilation devices (such as air conditioning equipment) can also lead to heat input into the support structure or heat dissipation from the support structure (such as the aforementioned machine frame) and / or components of the grinding machine.
[0015] The term "fluid flow" here includes both the examples of liquid flows in the form of cooling fluids explained in detail above, and also gaseous flows, such as ambient air or the like. Therefore, according to this word, the term "fluid" as usual includes both liquids (i.e. liquids) and gaseous substances or gas mixtures, such as ambient air, compressed air or the like.
[0016] The tool spindle can be provided for driving the gear tool in rotation. The workpiece spindle can be provided for driving the workpiece to be meshed in rotation.
[0017] The device for discharging cooling fluid can be provided for introducing cooling fluid into a chip removal region between the gear tool and a workpiece to be meshed during, before and after a cutting process.
[0018] The device for discharging the cooling fluid can have a pump in order to put the cooling fluid under pressure and introduce it under pressure into the chip removal region between the gear-carrying tool and the workpiece to be meshed.
[0019] When the support structure of the grinding machine is mentioned here, this may be the frame of the grinding machine or a support element of the grinding machine, such as a steel beam, a support or a similar structural component. When the components of the grinding machine are mentioned here, this may be in particular a moving axis, a part of a moving axis, a drive, a support, a clamping device, a spindle component or the like.
[0020] It can be provided that the insulating device has a planar component, for example a sheet metal or the like.
[0021] The sheet metal can include a metallic material or consist of a metallic material.
[0022] It may be provided that the plates are glued or coated with a material having a low thermal conductivity or are connected by other processes, for example by vulcanization or the like.
[0023] When referring to materials with low thermal conductivity, this is a thermal conductivity measured in W / (m·K) of, in particular, less than 2 W / (m·K), further in particular less than 1 W / (m·K), wherein the thermal conductivity is, as usual, defined relative to 0° C.
[0024] According to one embodiment of the grinding machine, the surface component has a spacing relative to the support structure and / or component to be protected of the grinding machine. In this way, heat transfer between the surface component and the support structure and / or component to be protected by, in particular, surface contact can be avoided. If the surface component is to, for example, help to keep cooling fluid away from the support structure and / or component to be protected of the grinding machine, only the surface component is heated due to the contact with the cooling fluid, but this heat is not transferred through the surface component to the support structure and / or component to be protected of the grinding machine.
[0025] The planar component therefore contributes in particular to thermally decoupling support structures and / or components of the grinding machine from associated fluid flows.
[0026] It can be provided that an air gap is formed at least in regions between the planar component and the supporting structure and / or component to be protected. The air gap helps to avoid or reduce heat transfer between the planar component and the supporting structure and / or component to be protected. This is because the thermal conductivity of air at 0° C. is 0.024 W / (m*K).
[0027] Alternatively or additionally, provision can be made for an insulating material with low thermal conductivity, such as plastic, in particular foam rubber, polystyrene or the like, to be arranged at least in regions between the planar component and the support structure and / or the component to be protected.
[0028] The thermal conductivity of such an insulating material is in particular less than 1 W / (m*K) at 0°C, further in particular less than 0.5 W / (m*K) at 0°C, further in particular less than 0.1 W / (m*K) at 0°C.
[0029] In particular, it can be provided that the region formed between the planar component and the support structure and / or the component to be protected is completely filled with an insulating material having a low thermal conductivity.
[0030] It may be provided that the planar components are bonded with a material having low thermal conductivity.
[0031] The material thickness of the planar component, in particular the sheet metal thickness, can be less than 5 mm, in particular less than 2 mm.
[0032] Alternatively or additionally, it may be provided that the length of the planar component may be greater than 10 cm, in particular greater than 20 cm.
[0033] Alternatively or additionally, it may be provided that the width of the planar component may be greater than 10 cm, in particular greater than 20 cm.
[0034] It may be provided that the material thickness of the aforementioned insulating material is greater than 0.5 cm, in particular greater than 1 cm, in particular greater than 2 cm, in particular greater than 5 cm.
[0035] Alternatively or additionally, provision can be made for the insulating material to have a length of more than 10 cm, in particular more than 20 cm.
[0036] Alternatively or additionally, provision can be made for the width of the planar component to be greater than 10 cm, in particular greater than 20 cm.
[0037] It can be provided that the insulating material is a plate-shaped component, ie is mass-produced, for example, from a plate-shaped base body, or that the insulating material is a mat-shaped component, ie is mass-produced, for example, from a mat-shaped basic material, which can be wound onto a roll, for example.
[0038] According to one design of the grinding machine, it can be provided that the supporting structure to be protected is a frame of the grinding machine, wherein, viewed in the vertical direction, the isolating device is arranged between the device for discharging the cooling fluid and the frame, wherein the isolating device is particularly arranged within a processing space of the grinding machine that is closed during operation of the grinding machine and within which processing space the workpiece to be meshed is processed by means of a gear tool.
[0039] During the grinding process, cooling fluid is introduced into the region of the grinding contact between the tool or grinding tool and the workpiece to be engaged. The cooling fluid arrives in the direction of the machine frame or accumulates in the region of the machine frame and is usually discharged in the region of an outlet, purified and reused in the cooling fluid circulation. The separating device is intended to prevent direct contact of the cooling fluid with the machine frame by its arrangement between the machine frame and the device for discharging the cooling fluid.
[0040] It can be provided that the separating device has an inclination and is in particular designed to guide the cooling fluid to a cooling fluid outlet or cooling fluid discharge. Horizontal surfaces or surfaces with a low inclination are potential areas in which cooling fluid can accumulate in large quantities. In these areas where there is no outflow or only a very slow outflow, heat transfer from the cooling fluid to the components wetted by the cooling fluid occurs over a particularly long period of time. This is to be avoided by the inclination described above, wherein the inclination is to facilitate a faster outflow of the cooling fluid due to gravity.
[0041] It can be provided that the isolating device has a seal relative to adjacent components or structures of the grinding machine in the area of a fixing point or in the area of multiple fixing points and / or at the edges of the fixing points, so as to separate the area in which the fluid flow and / or sparks occur in the grinding machine at least partially from the area in which the supporting structure and / or components of the grinding machine to be protected are arranged.
[0042] The isolating device can be built as a retrofit solution at an existing grinding machine. Alternatively, the isolating device can already be taken into account in the design of the grinding machine or incorporated into the design during the remanufacturing of the grinding machine.
[0043] It can be provided that the insulating device is at least partially placed on the supporting structure and / or the component of the grinding machine to be protected. Thus, in the simplest case, for example, the supporting structure and / or the component of the grinding machine to be protected is covered with the insulating device in order to protect the relevant structure and / or component from the influence of heat input. For example, the supporting structure and / or the component to be protected can be glued or covered with foam rubber or other insulating materials.
[0044] The above examples mostly relate to the interior of the grinding machine, in the region of which the actual machining of the workpieces to be meshed takes place. However, as already mentioned at the outset, environmental influences outside the interior of the grinding machine can also lead to temperature fluctuations which can affect the achievable machining accuracy in the single-digit micrometer range.
[0045] Therefore, according to another design of the grinding machine, it can be provided that the isolating device is arranged outside the processing space or internal space of the grinding machine which is closed during operation of the grinding machine so as to protect the supporting structure and / or components of the grinding machine from the influence of ambient air, in particular air flow, from the surrounding environment of the grinding machine, wherein the isolating device can in particular be a shell which surrounds the supporting structure and / or components of the grinding machine to be protected on the circumferential side, and the shell in particular extends or can extend to the workshop floor on which the grinding machine is mounted and can also in particular be sealed relative to the workshop floor.
[0046] The features “a support structure of a grinding machine” and “a support structure of a grinding machine to be protected” are used synonymously in this document and each refer to the same feature.
[0047] The features “component of a grinding machine” and “component of a grinding machine to be protected” are used synonymously in this document and each refer to the same feature. BRIEF DESCRIPTION OF THE DRAWINGS
[0048] The present invention is explained in more detail below with the aid of the accompanying drawings which show exemplary embodiments. They are schematically shown respectively:
[0049] Figure 1 A grinding machine according to the invention is shown;
[0050] Figure 2 Shows Figure 1 Isolation device of the grinding machine;
[0051] Figure 3 Another isolation device is shown;
[0052] Figure 4Another isolation device is shown;
[0053] Figure 5 Another isolation device is shown;
[0054] Figure 6 shows a device with an isolation Figure 1 The frame of the grinding machine. DETAILED DESCRIPTION
[0055] Figure 1 A grinding machine 10 according to the invention for grinding gear wheels is shown.
[0056] The grinding machine 10 has a tool spindle 12 for receiving and driving a gear tool 14. The gear tool 14 is a grinding worm in this case.
[0057] The grinding machine 10 has a workpiece spindle 16 for receiving a workpiece to be meshed.
[0058] The grinding machine 10 has a plurality of controlled machine axes for executing relative movements in order to machine a workpiece to be meshed with the aid of a gear tool 14 .
[0059] The machine axes are labeled with letters, wherein each of these letters is assigned an arrow which represents the respective degree of freedom of movement of the corresponding machine axis. The grinding machine 10 has three linear axes X, Y, Z which are provided for the translational movement of the tool spindle 12. The rotary drive of the gear tool 14 is labeled with B1, wherein the pivot axis of the tool spindle 12 is designated with A1.
[0060] The axes B2 and C3 are assigned to the rotary drive and pivoting of the dresser 18 .
[0061] The rotary axis C1 controls the rotation of the workpiece to be engaged during machining, wherein Figure 1 The workpieces to be meshed are not shown.
[0062] Furthermore, a linearly displaceable axis Z1 is provided, which is associated with a sleeve 20 for clamping a gear shaft or the like.
[0063] The grinding machine 10 has a device 22 for discharging a cooling fluid, which is provided to introduce cooling fluid into a chip removal region between the gear tool 14 and a workpiece to be meshed during a cutting operation.
[0064] The grinding machine 10 here has an insulating device 24 in order to protect a support structure 26 of the grinding machine 10 from fluid streams and / or sparks. In this case, the insulating device 24 contributes in particular to protecting the support structure 26 from cooling fluid discharged by the device 22. The insulating device 24 can be fastened by screwing or gluing, in particular to a guard, a bracket or the like.
[0065] Figure 2 A very simplified and not to scale section through a machine tool 10 is shown schematically and by way of example, in which a grinding operation is shown with the aid of a grinding worm 14. Figure 2 28 to be meshed. During the grinding process, a cooling fluid 30 is introduced into the chip removal region between the workpiece 28 and the grinding worm 14 by means of the device 22 .
[0066] The cooling fluid is discharged under pressure by means of a pump in the direction of the grinding worm 14. After contact with the workpiece 28 and the grinding worm 14, the cooling fluid 30 passes downward in the vertical direction V and encounters the partition 24 there. The partition 24 is inclined and guides the cooling fluid 30 in the direction of the cooling fluid discharge opening 35.
[0067] The insulating device 24 prevents the cooling fluid 30 heated during the grinding contact from impinging on the support structure 26, which is here the machine frame of the grinding machine 10. The insulating device 24 thus achieves a fluid flow decoupling, in particular a thermal decoupling, of the machine frame 26 from the cooling fluid 30.
[0068] This prevents heat from being introduced into the machine frame 26 via the cooling fluid 30 , which could lead to heating of parts supporting the machine shaft or components of the machine shaft itself and could impair the production accuracy of the grinding machine 10 due to thermal expansion.
[0069] The insulating device 24 has a planar component in the form of a sheet metal 32 made of a metal material. The insulating device 24 has a distance A to the supporting structure 26 to be protected. An air gap is formed in the region of the distance A, so that an insulating air layer 42 is formed between the insulating device 24 and the frame 26.
[0070] According to Figure 2 As can be seen from the illustration of , viewed in the vertical direction V, the insulating device 24 is arranged between the device 22 for discharging the cooling fluid 30 and the support structure 26 to be protected.
[0071] Furthermore, the isolation device 24 is arranged within a processing space 36 of the grinding machine 10 which is closed during operation of the grinding machine. To simplify the illustration, a corresponding protective enclosure of the grinding machine 10 is not shown here. However, it is known that grinding machines or machine tools or gear cutting machines in general have a movable or pivotable door with a protective enclosure in order to achieve a reliable delimitation of the machine operation in the interior space 36 from the surrounding environment U.
[0072] Figure 3 By way of example and schematically, a further embodiment of an insulating device 24 ′ is shown, wherein, in order to avoid repetitions, identical features are provided with the same reference numerals and only the differences from the previously described exemplary embodiments are discussed.
[0073] The insulating device 24' also has a plate 32. Furthermore, an insulating material 34 with low thermal conductivity is arranged between the plate 32 and the machine frame 26 to be protected.
[0074] For both embodiments described above, it is applicable that the material thickness D of the plate or the plate thickness D is less than 5 mm, here less than 2 mm. It is also applicable that the length L of the plate is greater than 10 cm and the width B of the plate is greater than 10 cm.
[0075] for Figure 3 In the example of FIG. 2 , the insulating device 24 ′ is placed on a support structure 26 of the grinding machine 10 to be protected.
[0076] Figure 4 By way of example and schematically, a further embodiment of an insulating device 24 ″ is shown, wherein, in order to avoid repetitions, identical features are provided with the same reference numerals and only the differences from the previously described exemplary embodiments are discussed.
[0077] The insulating device 24 ″ also has a sheet metal 32 and is further provided with an insulating material 34 , which is adhesively bonded in the present example. Figure 2 A similar spacing A results in an air gap between the insulating device 24 and the support structure 26. In addition, the insulating device 24 is provided with a seal 38 in the edge region of the fastening relative to the adjacent component 40 of the grinding machine 10. The seal 38 can simultaneously be an adhesive connection.
[0078] Figure 5 A further exemplary and schematic embodiment of an insulating device 24 ′″ is shown, which here does not have a sheet metal, but only an insulating material 34 . In this exemplary embodiment, an air gap is again provided, which, however, can be omitted according to alternative exemplary embodiments.
[0079] The grinding machine 10 may have two or more insulating devices 24 , 24 ′, 24 ″, 24 ′″ associated with the interior 36 of the grinding machine 10 in order to protect the frame 26 and / or other components of the grinding machine 10 from wetting by the cooling fluid 30 and / or sparks.
[0080] Figure 1 Another exemplary and schematic design of an insulating device 24''' is shown, which is arranged outside a processing space 36 of the grinding machine 10 that is closed during operation of the grinding machine in order to protect the frame 26 of the grinding machine 10 from ambient air, in particular air flows, from the surroundings U of the grinding machine 10.
[0081] The insulating device 24 ′″ is a shell which surrounds the frame 26 of the grinding machine 10 on the circumferential side, extends to the workshop floor H on which the grinding machine 10 is mounted and is further sealed with respect to the workshop floor H.
[0082] Figure 6 The machine frame 26 of the grinding machine 10 is shown, wherein the axial superstructure, namely the machine tower 44 which supports the tool spindle 12 and the device 22 for discharging cooling fluid together with the associated machine spindle, as well as the corresponding axes and superstructures of the workpiece spindle 16 and the center sleeve 20 are concealed in order to enable a freely perspective top view onto the machine frame 26.
[0083] The frame 26 has guide rails 46 and a mounting platform 48 for receiving the aforementioned shaft superstructure.
[0084] Six insulating devices are installed here between the mounting platforms 48. The insulating devices 24 are each shown with different hatching in order to visually distinguish them from adjacent components or regions of the machine frame.
[0085] To simplify the illustration, all isolating devices are each provided with a reference numeral 24. Figure 6 Each of the isolating devices 24 shown in the figure can be arranged according to the aforementioned reference Figures 2 to 5 That is, in Figure 6 Each of the isolating devices 24 shown in the figure can be designed structurally according to one of the isolating devices 24, 24', 24", 24'". In other words, the frame can also be equipped with a combination of isolating devices 24, 24', 24", 24'' of different types or structural types.
[0086] If Figure 6 It can be seen that the insulating device 24 covers those areas of the frame 26, in particular, which are arranged between the mounting platforms 48 and would be exposed if they were not covered accordingly by the insulating device 24. Therefore, the insulating device 24 prevents the areas of the frame 26 arranged between the mounting platforms 48 from being wetted by the cooling fluid during machine operation and prevents heat input or temperature fluctuations due to the influence of the cooling fluid.
[0087] Reference numerals list
[0088] 10. Grinder
[0089] 12 tool spindles
[0090] 14Gear tools / worm grinding
[0091] 16 workpiece spindles
[0092] 18 Dresser
[0093] 20 top sleeve
[0094] 22 Device for discharging cooling fluid
[0095] 24 Isolation device
[0096] 24' Isolation Device
[0097] 24'' Isolation Device
[0098] 24''' Isolation device
[0099] 24''''Isolation device
[0100] 26 Support structure / frame
[0101] 28 meshing workpieces
[0102] 30 Cooling fluid
[0103] 32 Plates
[0104] 34 Isolation materials
[0105] 35 Cooling fluid outlet
[0106] 36 processing space
[0107] 38 Seals
[0108] 40 parts
[0109] 42 air layer
[0110] 44 Machine Tower
[0111] 46 rails
[0112] 48Assembly platform
[0113] X-axis
[0114] Y axis
[0115] Z axis
[0116] A1 crankshaft
[0117] B1 crankshaft
[0118] B2 crankshaft
[0119] C1 crankshaft
[0120] C3 crankshaft
[0121] V vertical line
[0122] A Spacing
[0123] H workshop floor
[0124] USurrounding Environment
[0125] L length
[0126] B Width
[0127] DThickness
Claims
1. A grinding machine for gear grinding, the grinding machine comprising: - a tool spindle (12) for receiving a gear tool (14), a workpiece spindle (16) for receiving a workpiece (28) to be meshed, - a plurality of controlled machine axes for performing relative movements in order to machine a workpiece (28) to be meshed with the aid of a gear tool (14), - a device (22) for discharging a cooling fluid (30), which is provided for introducing the cooling fluid (30) into a chip removal region between a gear tool (14) and a workpiece (28) to be meshed during a cutting operation, characterized in that At least one insulating device (24, 24', 24", 24'", 24'''') is provided to protect a support structure (26) and / or components of the grinding machine (10) from fluid flows and / or sparks.
2. The grinding machine according to claim 1, characterized in that The insulating device (24, 24', 24", 24'", 24'''') has a planar component (32), such as a plate (32) or the like.
3. The grinding machine according to claim 2, characterized in that: The planar component (32) has a distance (A) from the supporting structure and / or component of the grinding machine (10) to be protected, and / or The insulating device (24, 24', 24", 24'", 24'''') has a distance (A) from the supporting structure and / or the component of the grinding machine (10) to be protected.
4. The grinding machine according to claim 3, characterized in that: - an air gap is formed at least in places between the planar component (32) and the support structure (26) and / or the component to be protected, and / or An insulating material (34) with low thermal conductivity, such as plastic, in particular foam rubber, polystyrene or the like, is arranged at least in regions between the planar component (32) and the support structure and / or the component to be protected.
5. The grinding machine according to any one of claims 2 to 4, characterized in that: - the material thickness (D) of the planar component (32), in particular the thickness of the plate material, is less than 5 mm, in particular less than 2 mm, and / or - the length (L) of the planar component (32) is greater than 10 cm, in particular greater than 20 cm, and / or The width (B) of the planar component (32) is greater than 10 cm, in particular greater than 20 cm.
6. Grinding machine according to one of the preceding claims, characterized in that the support structure (26) is a machine frame of the grinding machine (10), wherein, viewed in the vertical direction (V), the separating device (24, 24', 24", 24'") is arranged at least partially between the device (22) for discharging the cooling fluid (30) and the machine frame (26), The separating device (24, 24', 24", 24'") is arranged in particular within a processing space (36) of the grinding machine (10) which is closed during grinding operation and within which a workpiece (28) to be meshed is processed by means of a gear tool (14).
7. Grinding machine according to one of the preceding claims, characterized in that The partition device (24, 24', 24", 24''') has an inclination and is in particular provided for guiding the cooling fluid to the cooling fluid outlet (35).
8. Grinding machine according to one of the preceding claims, characterized in that The insulating device (24, 24', 24", 24'"') has a seal (38) relative to adjacent components (40) or structures of the grinding machine (10) in the area of one or more fixing points and / or at the edge of the fixing points, so as to separate the area in the grinding machine (10) where fluid flows and / or sparks occur at least partially from the area in which the supporting structure (26) and / or components of the grinding machine (10) to be protected are arranged.
9. Grinding machine according to one of the preceding claims, characterized in that The insulating device (24, 24', 24", 24'") is placed at least partially on the supporting structure and / or the component of the grinding machine to be protected.
10. Grinding machine according to one of the preceding claims, characterized in that the insulating device (24'''') is arranged outside a processing space (36) of the grinding machine (10) which is closed during operation of the grinding machine in order to protect a support structure (26) and / or components of the grinding machine (10) from ambient air, in particular air currents, from the surroundings (U) of the grinding machine (10), The insulating device (24'''') is in particular a shell surrounding the supporting structure (26) and / or components of the grinding machine (10) to be protected on the circumferential side, the shell in particular extending to the workshop floor (H) on which the grinding machine (10) is mounted and is also in particular sealed with respect to the workshop floor (H).