• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a lighting device (30) for a machine tool, in particular for a cutting machine tool, preferably for a grinding machine or milling machine, wherein the illumination device (30) can be arranged on a machine table of the machine tool and is movable with the machine table, characterized in that Lighting device comprises a first housing (31) in which a lighting module (32) with a number of lighting means (34) is arranged, and that on the first housing (31) is arranged on the light side, a translucent plate (35), wherein the translucent plate (35) is configured to spread the light emitted by the lighting means (34) substantially uniformly, wherein the lighting means (34) comprise light-emitting diodes. Furthermore, the invention provides a machine tool, in particular a chip-removing machine tool, preferably a grinding machine or milling machine, with an illumination device according to the invention.
    公开号:CH707042B1
    申请号:CH01581/13
    申请日:2013-09-16
    公开日:2017-09-29
    发明作者:Lothar Ophey Dr
    申请人:Elb-Schliff Werkzeugmaschinen Gmbh；
    IPC主号:
    专利说明:

    The invention relates to an illumination device for a machine tool, in particular for a cutting machine tool, preferably for a grinding machine or milling machine, wherein the illumination device can be arranged on a machine table of the machine tool, and a machine tool, in particular a grinding machine or milling machine, with a lighting device according to the invention.
    Background of the Invention and Related Art In machine tools, particularly grinding machines and milling machines, it is known to illuminate the work area with a light bulb. However, the use of light bulbs to illuminate the work area has the disadvantage that only a small area of the work area can be optimally illuminated. Furthermore, it can come to a disturbing shadow due to the substantially point-like illumination.
    If the light bulb or the lighting device is arranged on the machine table of the machine tool and is movable with the machine table, the use of light bulbs is also disadvantageous, because by the method of the machine table may cause mechanical stress on the lighting device or the light bulb , which can significantly shorten the life of the light bulb.
    OBJECT OF THE INVENTION It is therefore an object of the present invention to at least partially avoid the disadvantages known from the prior art and to provide a lighting device for a machine tool which enables an improved illumination of the working area of the machine tool and also less susceptible to mechanical stress is.
    [0005] According to the invention, this object is achieved with an illumination device for a machine tool, in particular for a cutting machine tool, preferably for a grinding machine or milling machine, and with a machine tool having an illumination device according to the invention according to the independent claims. Advantageous developments and refinements of the invention are specified in the dependent claims.
    Accordingly, there is provided a lighting device for a machine tool, in particular for a cutting machine tool, preferably for a grinding machine or milling machine, wherein the lighting device can be arranged on a machine table of the machine tool and can be moved with the machine table. According to the invention, the illumination device is characterized in that the illumination device comprises a first housing in which a lighting module is arranged with a number of light sources, and in that a light-transmissive plate is arranged on the first housing on the light-emitting side, the light-permeable plate being designed by The light emitted to the lamps emitted light substantially uniformly, and wherein the light emitting diodes, ie LED, include.
    By using a number of bulbs, an enlarged illuminated area is provided, so that a much larger area of the working area of the machine tool can be optimally illuminated. By using a translucent plate which substantially uniformly disperses the light emitted by the illuminants, surface illumination is provided in an advantageous manner with which, on the one hand, a large working area of the machine tool can be optimally illuminated and, on the other hand, disturbing shadowing is considerably reduced or substantially avoided ,
    The translucent plate may be secured with a clamping frame to the first housing, preferably by means of fastening screws. Alternatively, a clip mechanism may be provided for attaching the clamping frame to the first housing. This allows a quick and tool-free replacement of the lighting module.
    The translucent plate and / or the clamping frame can close the first housing substantially watertight. This is particularly advantageous when the workpiece to be machined must be cooled during processing with a liquid coolant.
    For this purpose, it may be provided on the housing or on the translucent plate or on the clamping frame a circumferential seal, such as rubber seal to arrange.
    The use of LEDs as bulbs has the advantage that they are less susceptible to mechanical stress than conventional bulbs or other bulbs. Another advantage is that the lighting device can be operated more energy-efficient. Overall, this allows the lighting device to be operated much longer, before a change of the bulbs is necessary.
    It is advantageous if the lighting means comprise light strips with a number of light-emitting diodes. For a particularly simple production of a lighting device according to the invention is possible, since light strips with LEDs in a desired length and assembled with a desired number of LEDs are available.
    The light strips or the light sources (LEDs) may be coupled to a control device. The control device can be configured to control each light strip or each light source individually. This makes it possible to adjust the light intensity or the brightness of each LED individually.
    It is advantageous if the lighting means are arranged distributed substantially uniformly, so that there is a substantially uniform over the entire surface of the lighting module light emission. Furthermore, an annoying shadow cast can be reduced even further.
    Particularly advantageous has been found when the translucent plate comprises a glass pane, preferably made of opaque white glass, in particular a frosted glass or Milchüberfangglasscheibe. This achieves a particularly good dispersion of the light emitted by the light sources and at the same time protects the light sources particularly well. It is advantageous here if the glass pane has a scratch-resistant coating.
    Furthermore, the invention provides a machine tool, in particular grinding machine or milling machine, which has an inventive lighting device, wherein the lighting device is arranged on a machine table of the machine tool and is movable with the machine table.
    In one embodiment of the inventive machine tool, the machine tool may comprise at least one further illumination device, which is arranged at a predetermined angle to the first illumination device and wherein the individual illumination devices are movable relative to each other. The respective further illumination device here comprises a housing and a lighting module with a number of light sources and a translucent plate which is arranged substantially in the same manner in the housing or on the housing of the respective further illumination device as the illumination module with a number of light sources and the translucent plate of the housing of the first illumination device.
    For an even better illumination of the working area of the machine tool is achieved while a shadow cast even further reduced. In a further embodiment of the invention, further lighting devices can be arranged on the first lighting device.
    In a still further embodiment of the invention, the other lighting devices can also be arranged directly on the machine table.
    It is advantageous if the illumination device is arranged on the machine table via a positioning device to move the illumination device relative to the machine table and to lock in a predetermined position relative to the machine table. In this way, the surface illumination provided by the illumination device according to the invention can be optimally adapted to the workpiece to be machined or to the tool used in order, on the one hand, to achieve optimum illumination of the working area and, on the other hand, to minimize the shadow cast.
    BRIEF DESCRIPTION OF THE FIGURES Further details and features of the invention as well as concrete, in particular advantageous embodiments of the invention will become apparent from the following description taken in conjunction with the drawings. It shows:
    1 shows a schematic representation of a machine table with an inventive lighting device arranged thereon;
    FIG. 2 shows a construction of an illumination device according to the invention in an exploded view; FIG. and
    Fig. 3 shows an embodiment of a machine table of a machine tool with three inventive lighting devices, wherein two of the three lighting devices are movable relative to the machine table.
    DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows a schematic representation of a machine table 10 of a machine tool, such as a grinding machine or a milling machine. The machine table 10 has here not shown clamping means with which the workpiece to be machined can be clamped in the machine tool.
    On the right side of the table trough 40 of the machine tool 10, a spray cap 20 is arranged. On the inside of the spray cap 20, which faces the workpiece to be machined, a lighting device 30 is arranged, with which the workpiece clamped in the machine tool or in the machine table is illuminated or illuminated. The table pan 40 is mounted on the machine table, so that the illumination device 30 can be moved together with the machine table. This ensures optimal illumination of the workpiece during the entire machining process.
    The spray cap 20 has connections, not shown here, for a power supply of the illumination device. Furthermore, connections for a control device provided in the illumination device for controlling the illumination device can also be provided.
    Fig. 2 shows an inventive lighting device in a spray cap 20 of the table pan 40 in an exploded view.
    In the spray cap 20, a housing 31 of the illumination device 30 is first arranged. In the housing 31 is a lighting module 32, which has a number of light-emitting means 34 in the form of light-emitting diodes. In the embodiment of the invention shown in FIG. 2, the illumination module 32 has a number of light strips 33 each having a number of light-emitting diodes. The use of light strips with LEDs, so-called LED strips, has the advantage that they are already pre-assembled, so that the outlay for producing a lighting device according to the invention can be considerably reduced.
    In the embodiment shown in FIG. 2, the illumination module 32 has six light strips 32. Of course, more than six or less than six light strips may be provided, which ultimately depends on the specific application of the lighting device.
    The light strips 33 and the light emitting diodes 34 may be coupled to a control module or a control device, not shown here. The control module may be configured to individually control each light strip 33 or each light emitting diode to individually adjust the light intensity or brightness of each light strip 33 and each light emitting diode 34, respectively. Thus, different lighting scenarios can be realized, so that a particularly good illumination of the work area is possible at the same time minimized shadow. The control device not shown here may be coupled to an operating unit of the machine tool.
    With the control module, the light strips 33 and the light-emitting diodes 34 can also be pulsed by the LEDs are cyclically switched on or off. The cycle can be adapted approximately to the rotational speed of a tool, so that the viewer is a substantially stationary image of the moving tool. Thus, the workpiece can also be subjected during a grinding process of a visual inspection by the viewer.
    After insertion of the housing 31 with the lighting module 32 disposed therein in the spray cap 20, a translucent plate 35 is placed on the housing 31 on the light side. The translucent plate is designed so that the light emitted by the bulbs light is substantially uniformly scattered. In one embodiment of the invention, a frosted-glass pane or a frost-covered glass pane can be used for this purpose. Depending on the requirements of the lighting device, the translucent plate can be provided with a scratch-resistant layer. As an alternative to a frosted glass pane or frosted glass pane, opaque plastic panes can also be used. In a further alternative embodiment of the invention, it is also possible to use completely transparent panes which are coated with an opaque film.
    After applying the translucent plate 35 to the housing 31, a clamping frame 36 is arranged at the front of the translucent plate 35, with which the translucent plate 35 is fixed to the housing 31 and to the spray cap 20. For this purpose, both the clamping frame 36 and the translucent plate 35 and the housing 31 screw holes 50 which are provided for receiving fastening screws with which the clamping frame 36, the translucent plate 35 and the housing 31 can be screwed together.
    It is advantageous if the translucent plate 35 is fastened to the housing 31 so that it closes the housing 31 substantially watertight. For this purpose, it may be advantageous to arrange on the housing 31 or on the back of the translucent plate 35 a circumferential rubber seal, which ensures a substantially watertight closure.
    FIG. 3 shows an embodiment of a machine tool according to the invention.
    The machine tool here has three individual illumination devices 30, 30a, 30b, wherein the illumination devices 30a and 30b are arranged at a specific angle to the illumination device 30. This allows even better illumination of the work area. It is advantageous if the individual illumination devices 30, 30a and 30b are movable relative to each other. or are movable relative to the machine table. In the embodiment shown in FIG. 3, the illumination devices 30a, 30b are pivotably connected to the illumination device 30 so that the angle between these two illumination devices 30a, 30b to the illumination device 30 can be adjusted or changed.
    The two lighting devices 30a, 30b can also be arranged directly on the machine table of the machine tool, preferably pivotable. The structure of the illumination devices 30a, 30b essentially corresponds to the structure of the illumination device 30.
    权利要求:
    Claims (9)
    [1]
    It is advantageous if the lighting devices are arranged on the machine table via a positioning device, with which the lighting devices can be moved relative to the machine table and can be locked in a predetermined position relative to the machine table. Furthermore, the additional lighting devices 30a, 30b may each have a control module with which the individual light strips or the individual light-emitting diodes can be controlled individually. The illumination device according to the invention can also be used in a machine tool which has a full housing, which can be closed during the machining process of the workpiece. The lighting device according to the invention has been described above in connection with a grinding machine or a milling machine. Of course, the lighting device according to the invention can also be used in other machine tools, such as a drill or other cutting machine tool. 10 machine table of the machine tool (for example grinding machine) 20 spray cap of the table pan of the grinding machine 30 lighting device of the machine tool 30a, 30b further lighting devices 31 housing 32 lighting module 33 light strip with light source 34 illuminant, preferably LED 35 translucent plate, e.g. Glass pane, preferably made of opaque white glass (frosted glass or frosted glass) 36 clamping frame 50 screw holes Patent claims
    1. Lighting device (30) for a machine tool, in particular for a cutting machine tool, preferably for a grinding machine or milling machine, wherein the lighting device on a machine table (10) of the machine tool can be arranged and is movable with the machine table, characterized in that -the lighting device a first housing (31), in which a lighting module (32) with a number of lighting means (34) is arranged, and - on the first housing, the light emitting side, a translucent plate (35) is arranged, wherein the translucent plate is designed, the substantially uniformly scattering light emitted by the lighting means (34), the lighting means (34) comprising light emitting diodes.
    [2]
    2. Lighting device (30) according to claim 1, characterized in that the translucent plate (35) with a clamping frame (36) on the first housing (31) is attached.
    [3]
    3. Lighting device (30) according to any one of the preceding claims, characterized in that the translucent plate (35) and / or, if present, the clamping frame (36) close the first housing (31) substantially watertight.
    [4]
    4. Lighting device (30) according to any one of the preceding claims, characterized in that the lighting means (34) comprise light strips with a number of light-emitting diodes.
    [5]
    5. Lighting device (30) according to any one of the preceding claims, characterized in that the lighting means (34) are arranged distributed substantially uniformly over the entire surface of the lighting module (32).
    [6]
    6. Lighting device (30) according to any one of the preceding claims, characterized in that the translucent plate (35) comprises a glass pane, preferably made of opaque white glass, in particular a frosted glass or Milchüberfangglasscheibe.
    [7]
    7. Machine tool, in particular a cutting machine tool, preferably a grinding machine or milling machine, comprising a lighting device (30) according to one of the preceding claims, wherein the illumination device (30) is arranged on a machine table (10) of the machine tool and is movable with the machine table.
    [8]
    8. Machine tool according to claim 7, characterized in that it comprises at least one further illumination device (30a, 30b) which is arranged at a predetermined angle to the first illumination device (30) and wherein the individual illumination devices (30, 30a, 30b) relative to each other are movable.
    [9]
    9. Machine tool according to claim 7 or 8, wherein the respective illumination device (30, 30a, 30b) is arranged via a positioning on the machine table to move the respective illumination device (30, 30a, 30b) relative to the machine table and in a predetermined position to lock relative to the machine table.
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    同族专利:
    公开号 | 公开日
    DE102012108798A1|2014-05-15|
    US9057515B2|2015-06-16|
    CH707042A2|2014-03-31|
    US20140078714A1|2014-03-20|
    CN103826796A|2014-05-28|
    WO2014044716A1|2014-03-27|
    引用文献:
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    法律状态:
    2018-04-30| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012108798.9A|DE102012108798A1|2012-09-18|2012-09-18|Lighting device for machine tool|
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