• 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:
    Method for dressing a grinding tool by means of a machine tool, with the method steps: - providing a dressable grinding tool (12); - Dressing the grinding tool (12) by means of a form dressing roller (18), - wherein the tool profile to be generated on the grinding tool is formed by a contact between the rotating grinding tool (12) and the rotating form dressing roller (18) along a dressing path (26), - wherein the dressing path is traversed automatically with the aid of two or more NC axes (X, Y, Z) of the machine tool (14) which generate a relative movement between the rotating grinding tool (12) and the rotating form dressing roller (18); characterized in that - during the movement of the dressing path (26) and while the form dressing roller (18) is in shaping contact with the grinding tool (12), it is provided that each of the relative movement between the rotating grinding tool (12) and the rotating Form dressing roller (18) generating NC axes (X, Y, Z) has an axis speed, the amount of which is greater than zero, whereby none of these NC axes (X, Y, Z) reverses direction or comes to a standstill.
    公开号:CH715886A2
    申请号:CH00161/20
    申请日:2020-02-14
    公开日:2020-08-31
    发明作者:Schweizer Martin
    申请人:Klingelnberg Ag；
    IPC主号:
    专利说明:

    The present invention relates to a method for dressing a grinding tool by means of a machine tool, with the method steps: providing a dressable grinding tool; Dressing of the grinding tool by means of a form dressing roller, the tool profile to be generated on the grinding tool being formed by a contact between the rotating grinding tool and the rotating form dressing roller along a dressing path, with the dressing path being traversed automatically with the aid of two or more NC axes of the machine tool, which generate a relative movement between the grinding tool and the form dressing roller.
    Dressing method of the type mentioned above are used to sharpen and shape grinding tools for fine machining or hard finishing of workpieces, such as gears or the like.
    In order to achieve high precision with the smallest possible deviations from the required target geometry during the grinding of the workpiece to be processed with the dressed grinding tool, the dressing of the grinding tool prior to the grinding process must also be highly accurate. It can thus be seen that insufficient dimensional accuracy of the grinding tool geometry generated in the dressing process can result directly in manufacturing deviations of the workpiece to be ground with the grinding tool.
    When dressing the grinding tool, there is a relative movement between the rotating grinding tool to be dressed and the rotating form dressing roller with the aid of NC axes of a machine tool. The dressing path, which describes the shaping contact between the dressing roller and the grinding tool, is therefore followed with the aid of the NC axes. Errors in the axis movements of these NC axes consequently have a disadvantageous effect on the accuracy of the profile of the grinding tool profile produced, so that the machining accuracy of the workpiece to be machined with the grinding tool dressed in this way is also impaired.
    A frequently occurring deviation of the actual position from the target position in the axis movements of the NC axes occurs when one or more of the NC axes involved during the shaping contact between the form dressing roller and the grinding wheel from a standstill or with a direction reversal have to be moved. In both cases, the relevant NC axis must be accelerated from a state of static friction to a state of sliding friction, so that a discontinuity in the time course of the forces acting or a jolt occurs (stick-slip effect).
    An example of such a path error of a machine tool during the dressing process, which results from a direction reversal of an NC axis, is shown in FIG. The NC axis in a Y direction (Y position) is implemented by a linear axis. The Y position shown in FIG. 1 therefore represents the travel of this linear axis in mm. An NC axis in a Z direction (Z position) is implemented by a further linear axis. The Z position shown in FIG. 1 therefore represents the travel of this further linear axis in mm.
    The curve with the reference numeral 1 represents the predetermined target path which is to be implemented for following a dressing path as a relative movement between a dressing roller and a grinding tool to be dressed by means of the linear axes in the Y-direction and Z-direction. The curve with the reference number 2 describes the actual path that is actually realized by the NC axes in the Y direction and Z direction.
    The target path 1 has a local minimum 3, so that the linear axis of the Y-direction has to change direction in order to travel along the target path 1. During the change of direction, the linear axis of the Y-direction comes to a short standstill and gets into a state of static friction, so that starting from the local minimum 3, a growing deviation of the actual path 2 from the target path 1 can be seen, the linear axis of the Y-direction remains at a value of approx. 287.962 mm, while the linear axis of the Z-direction continues to move. This results in a target / actual deviation in the Y position of approximately 0.004 mm, the amount of which is illustrated by the double arrow 4.
    It is understood that the adverse effect of a reversal of direction or a standstill of an NC axis described with Fig. 1 for two linear axes also exists for a standstill or a reversal of the direction of rotation of a pivot axis or axis of rotation, which in interaction with one or more linear - and / or swivel axes that travel along a dressing path.
    Against this background, the present invention is based on the technical problem of specifying a method for dressing a grinding tool of the type mentioned, which does not have the disadvantages described above or at least to a lesser extent and in particular allows increased accuracy when dressing a grinding tool.
    The technical problem described above is solved by a method according to claim 1. Further embodiments of the invention emerge from the dependent claims and the description below.
    According to the invention, a method for dressing a grinding tool by means of a machine tool is specified, with the method steps:<tb> - <SEP> Provision of a dressable grinding tool;<tb> - <SEP> dressing the grinding tool using a form dressing roller,<tb> <SEP> - <SEP> whereby the tool profile to be generated on the grinding tool is formed by a contact between the rotating grinding tool and the rotating form dressing roller along a dressing path,<tb> <SEP> - <SEP> whereby the dressing path is traversed automatically with the help of two or more NC axes of the machine tool, which create a relative movement<tb><SEP> <SEP> create tension between the rotating grinding tool and the rotating form dressing roller;<tb> - <SEP> whereby it is provided during the movement of the dressing path and while the form dressing roller is in shaping contact with the grinding tool,<tb> - <SEP> that each of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller has an axis speed whose amount is greater than zero, whereby none of these NC axes reverses direction or comes to a standstill.
    Because none of the NC axes used to follow the dressing path comes to a standstill or reverses direction, a static friction state for the respective NC axes and the associated deviations can be avoided. In particular, the NC axes are only moved in a state of sliding friction while the dressing path is being followed.
    If in the present case one speaks of those NC axes which generate the trajectory of the dressing path or the relative movement between the rotating grinding tool and the rotating form dressing roller, it is not the spindle drives which rotate the form dressing roller and the grinding tool move around their respective tool or workpiece spindle axis, but around those NC axes that cause a shift of a contact point or contact area in the form-giving contact between the grinding tool and the form dressing roller, such as Linear or swivel axes.
    The named NC axes can be linear axes arranged in accordance with Cartesian coordinates.
    The NC axes can alternatively or additionally have linear axes that are inclined and / or oriented skew to one another.
    The NC axes can have rotary and / or pivot axes.
    The term "form dressing roller" means here that the profile of the grinding tool to be dressed kinematically, i.e. is generated by a relative movement of the form dressing roller with respect to the grinding wheel, in particular there is no line but point contact between the form dressing roller and the grinding tool. In contrast to a profile dressing roller, which defines the profile of the grinding wheel in line contact solely by its profile shape, the form dressing roller mentioned here therefore does not have the profile of the grinding wheel as the negative shape inherent in the dressing tool.
    [0019] It can be provided that one of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller is a linear axis.
    Alternatively or in addition, it can be provided that one of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller is a pivot axis or axis of rotation.
    The abbreviation "NC" stands for "Numeric Control" in a known manner and is to be understood in the context of this text in such a way that the relevant NC axis can be moved with the aid of a machine control system, in particular within the framework of a fully automatic program sequence.
    If an NC axis is mentioned here, it is a device for adjusting a relative position of the tool, here the dressing roller, with respect to the workpiece, here the grinding tool, or vice versa. Such an NC axis usually has a drive that can move a movable element over a predetermined angular and / or length range. For this purpose, the movable element is mounted movably and / or rotatably along a guide. The bearing or guidance of the movable element in question can be designed hydrodynamically, hydrostatically, aerostatically or in a rolling manner. As an example of a linear guide, a slide carriage that can be moved in a translatory manner along a slide rail can be mentioned.
    When an NC axis is spoken of, which is a linear axis, it is, for example, a linear axis or linear unit with a spindle drive, ball screw drive, toothed belt drive, direct drive or the like.
    When speaking of an NC axis that is an axis of rotation or swivel axis, it is, for example, an axis of rotation or swivel axis with an electromotive, hydraulic or pneumatic rotary drive, in particular rotary drives based on the high-helix thread principle or the rack and pinion principle.
    For example, a spindle carrying the rotating dressing roller can be displaced and / or swiveled in a working area of the machine tool by means of two or more linear axes and / or pivot axes in order to perform a relative movement in relation to the grinding tool to be dressed. Furthermore, alternatively or in addition, a spindle that carries the rotating grinding tool can be displaced and / or pivoted in a working area of the machine tool by means of two or more linear axes and / or pivot axes in order to execute a relative movement in relation to the dressing tool.
    According to a further embodiment of the method it is provided that the dressable grinding tool is a dressable grinding wheel. With the aid of the method according to the invention, the accuracy when dressing the grinding wheel can accordingly be improved.
    According to a further embodiment of the method, the grinding wheel has a wheel profile whose wheel profile cross-section has at least one local minimum and / or at least one local maximum, the local minimum and / or local maximum being dressed in a continuous overflow.
    When a “continuous overflow” is spoken of, this means that the dressing roller dressing the local minimum and / or local maximum of the disk profile cross-section of the grinding tool to be dressed without setting or lifting the dressing roller from the grinding tool in permanent shaping contact. The disc profile cross-section is therefore not segmented, e.g. in a rising range up to a maximum and a falling range, which, starting from the maximum, is dressed in a second overflow or a second infeed. Rather, in the present case, the relevant local minimum and / or local maximum of the wheel profile cross-section of the grinding tool to be dressed is traversed or dressed in constant contact between the dressing roller and the grinding tool.
    As far as a cross-section or profile cross-section of a grinding tool is spoken of, it is a cutting plane which comprises the axis of rotation of the spindle of the grinding tool rotating about this axis of rotation.
    In particular when dressing profile cross-sections with a local maximum and / or local minimum, the problem outlined in FIG. 1 is that one of the participating NC axes maps the local minimum and / or local maximum of the profile cross-section by reversing the direction. According to the invention, such a profile cross-section is now specifically generated without standstill or reversal of direction of one of the NC axes in order to keep the deviations from the target geometry of the disk profile cross-section to be generated low.
    A reversal of direction of one of the NC axes, which generates the relative movement between the rotating grinding tool and the rotating form dressing roller, can in particular be avoided by using additional NC axes whose movements are superimposed to produce a dressing path.
    If, for example, a wheel profile cross-section of a grinding wheel is to be dressed with a local minimum or a depression, this can be achieved according to the prior art by a two-dimensional dressing path that identically traces the profile cross-section in the cutting plane. In this case, the dressing path contains the local minimum of the profile cross-section. As far as this dressing path now with e.g. two mutually perpendicular linear axes are traversed, one of these axes must map the minimum of the dressing path by reversing the direction (cf. Fig. 1).
    According to the invention this can e.g. be avoided in that the dressing path of the two-dimensionally dressable wheel profile cross-section is designed three-dimensionally, so that during dressing a movement also takes place transversely to the previously described cutting plane. The dressing path accordingly not only runs two-dimensionally in the radial and axial directions of the grinding wheel, but also extends circumferentially over an angular range measured around the axis of rotation of the grinding wheel. For example, the wheel profile discussed here with a local minimum can be traversed with the help of three linear axes along a dressing path without a local minimum, so that none of the three linear axes reverses direction or comes to a standstill.
    A further development of the method is characterized by a profile of the grinding tool, the profile cross section of which has one or more local minima and / or local maxima and can be dressed by a two-dimensional axis movement using two NC axes of a machine tool, with a further third axis is used to perform the dressing along a three-dimensional dressing path.
    It goes without saying that the above statements on the disk profile cross-section with a local minimum and the linear axes involved are to be understood as examples and that case constellations with grinding tool profile cross-sections with one or more local minima and / or one or more local maxima can be specified and here NC -Linear axes and / or NC swivel axes and / or NC rotary axes are used to enable the profile of the grinding tool to be trued in a superimposed movement, each of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller having an axis speed whose amount is greater than zero, with none of these NC axes reversing direction or coming to a standstill.
    According to a further embodiment of the method, the grinding tool is a dressable grinding worm. With the aid of the method according to the invention, the accuracy when dressing the grinding worm can accordingly be improved.
    The grinding worm in particular has a grinding worm profile whose worm profile cross section has a plurality of local minima and / or local maxima, with at least one local minimum and / or one local maximum being dressed in a continuous overflow.
    The preceding statements made with reference to the grinding wheel regarding the importance of the continuous overflow apply here equally. In this way, minima and maxima of the relevant screw profile cross-section are dressed in particular without segmenting in the area of the minima or maxima.
    Another embodiment of the method is characterized in that one or more of the NC axes are linear axes, each of the linear axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller having an axis speed whose amount is greater than or equal to 1 μm / s, in particular greater than or equal to 10 μm / s. This prevents the respective linear axis from coming into a state of static friction while the dressing path is being traversed or while the dressing roller is in shaping contact with the grinding tool. It goes without saying that the relevant linear axis is only moved in one direction during dressing or when following the dressing path in the form-giving contact - i.e. without reversing direction.
    A further embodiment of the method is characterized in that one or more of the NC axes are axes of rotation or pivot axes, each of the axes of rotation or pivot axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller having a rotational speed or pivoting speed The amount is greater than or equal to 1 * 10 <-6> ° / s, in particular greater than or equal to 10 * 10 <-6> ° / s.
    The invention can e.g. can be implemented using three linear axes that are arranged according to a Cartesian coordinate system.
    According to alternative embodiments, the invention can be implemented with the aid of linear axes that are inclined and / or skewed, i.e. in particular are not arranged perpendicular to each other.
    Alternatively or in addition, swivel and / or rotary axes can be used in order to implement the teaching according to the invention.
    In each case, it is not the relative arrangement of the respective NC axes or the extent to which a relevant NC axis causes a rotary and / or translational relative movement that is decisive, but that the condition required according to the invention is met that during the traversing of the dressing path and during the Form dressing roller is in shaping contact with the grinding tool, it is provided that each of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller has an axis speed whose amount is greater than zero, with none of these NC axes performing a direction reversal or for Standstill comes.
    [0045] The invention is described in more detail below with the aid of a drawing illustrating exemplary embodiments. They each show schematically:<tb> Fig. 1 <SEP> the problem on which the invention is based on the basis of two linear axes;<tb> Fig. 2A <SEP> shows a grinding tool profile cross section of a grinding tool;<tb> Fig. 2B <SEP> is a side view of the grinding tool from FIG. 2A;<tb> Fig. 2C <SEP> the grinding tool profile cross section from FIG. 2A with a dressing roller;<tb> Fig. 2D <SEP> a side view of the grinding tool from FIG. 2C with the dressing roller in two positions;<tb> Fig. 2E <SEP> a further side view of the grinding tool from FIG. 2C with the dressing roller in two positions;<tb> Fig. 3 <SEP> a three-dimensional representation of two dressing paths along a surface of the grinding tool.
    1 has already been discussed at the outset in order to show the problem on which the invention is based. In summary, a deviation 4 of the actual path 2 from the desired path 1 should be avoided by avoiding a reversal of direction of an NC axis - according to FIG. 1 of the Y axis. An implementation of the solution according to the invention means, based on the example according to FIG. 1, that the grinding tool in question is dressed in such a way that the target path for none of the participating NC axes in the Y-direction and Z-direction has a local minimum, although the profile cross-section of the grinding wheel to be dressed has such a local minimum. A solution to this problem is shown by way of example on the basis of FIGS. 2A-2E and FIG.
    2A shows a grinding tool profile cross section 10 of a dressable grinding tool 12. The grinding tool profile cross section 10 shown here can be a section of part of a profile cross section of a grinding worm, the profile cross section of which is a total of a multiple of the section shown in FIG. 2A in positive and negative z Direction extends further. The grinding tool profile cross section 10 shown here can be a section of a profile cross section of a grinding wheel, which also extends further over the section shown in FIG. 2A in the positive and negative z-direction. The grinding tool profile cross section 10 shown here can be the profile cross section of a grinding wheel.
    The coordinate axis (Z-axis) labeled “Z” represents, on the one hand, a coordinate of the Cartesian coordinate system X, Y, Z shown in FIG. 2A. On the other hand, “Z” represents an NC linear axis of a machine tool 14, which enables a linear or translational movement of the grinding tool 12 along the coordinate direction “Z”. This applies equally to the X and Y axes, so that the Cartesian coordinate system X, Y, Z is not just to be understood as a virtual reference system, but is spanned by three NC linear axes X, Y, Z oriented perpendicular to one another.
    The grinding tool profile cross section has a local minimum 16, which is shown in the side view according to FIG. 2B by the dashed circular line.
    In so far as this grinding profile 10 is to be dressed with a form dressing roller 18 according to FIG. 2C, the form dressing roller 18 is usually two-dimensional, i.e. moved exclusively within the YZ-plane spanned by the Y-axis and Z-axis, namely from a first contact point 20 to a second contact point 22 at a minimum 16 to contact point 24. The dressing path thus created, indicated by the hollow arrows therefore forms the profile cross-section of the grinding tool 12 in the YZ plane identically. The linear axis Y goes through the described, disadvantageous reversal of direction. The dressing path represented by the hollow arrows and contact points 20, 22, 24 is therefore not according to the invention.
    It goes without saying that the dressing path described represents a continuous overflow along the profile of the grinding tool 12 and the contact points 20, 22, 24 merely serve as support points to illustrate the course of the continuous dressing path. Alternatively, the relative movement could proceed from the contact point 24 via the contact point 22 to the contact point 20.
    According to the invention, a three-dimensional dressing path 26 is now used to dress the grinding tool 12.
    For this purpose, a movement in the X direction is superimposed in addition to the movement in the Y direction and Z direction. The one dressing path 26, which is represented by the solid arrows and the contact points 28, 30, 32, does not have a local minimum. The dressing path can therefore be traversed continuously without a direction reversal and standstill of one of the linear axes X, Y, Z, with the local minimum of the profile cross section 10 being dressed in a continuous overflow.
    In other words, the form dressing roller 18 is also moved along a profile of the grinding wheel R (Z) in the circumferential direction of the grinding tool, as indicated by the angle α.
    A method for dressing the grinding tool 12 by means of the machine tool 14 is therefore carried out, with the method steps.
    [0056] Providing the dressable grinding tool 12; Dressing of the grinding tool 12 by means of the form dressing roller 18, the tool profile 10 to be generated on the grinding tool 12 being formed by a contact between the rotating grinding tool 12 and the rotating form dressing roller 18 along a dressing path 26, with the dressing path 26 being traversed automatically with the aid of three NCs -Axes X, Y, Z of the machine tool 14 takes place, which generate a relative movement between the rotating grinding tool 12 and the rotating form dressing roller 18; and during the movement of the dressing path 26 and while the form dressing roller 18 is in shaping contact with the grinding tool 12, it is provided that each of the NC axes X, Y, Z generating the relative movement between the rotating grinding tool 12 and the rotating form dressing roller 18 have one Has axis speed, the amount of which is greater than zero, with none of these NC axes X, Y, Z reversing direction or coming to a standstill.
    2E illustrates three positions of the form dressing roller 18, which the dressing path 26 assumes in continuous form-giving contact with the grinding tool, in an overview.
    3 shows a comparison of the two-dimensional, non-inventive dressing path and the three-dimensional, inventive dressing path. The form dressing roller is not shown in FIG. 3 to improve clarity.
    Again, the hollow circles and arrows represent the non-inventive, two-dimensional dressing path along the hatched surface of the grinding tool 12 to be dressed and the solid circles and arrows represent the inventive dressing path for performing the inventive method. R (z) is the radius of the grinding tool.
    In order to clarify the required travel of the linear axes X, Y, Z for the two-dimensional and the three-dimensional dressing path, the dressing paths have been projected onto the Y-Z plane and the X-Z plane. It can be seen that the Y-axis for the two-dimensional dressing path has to reverse the direction in order to approach point 24 from point 22. It can also be seen that no movement of the X-axis is required for the two-dimensional dressing path. The profile of the grinding tool 12 can therefore be dressed in a two-dimensional movement.
    According to the invention, the dressing path 26 is selected according to the filled circles 28, 30, 32, the dressing path 26 having no local minimum in its projection onto the Y-Z plane and the X-Z plane. Each of the participating linear axes X, Y, Z is therefore traversed exclusively in one direction, so that the dressing path 26 is traversed without stopping or changing direction of one of the NC axes X, Y, Z generating the relative movement between the form dressing roller and the grinding tool.
    To determine a dressing path according to the invention, the following condition can therefore be set up “DY / DZ <= 0 and DX / DZ> = 0”: as long as DR / DZ <= 0: X = 0, Y (Z) = R (Z ), Z = Z (T) and YMIN = Min (Y (Z)); if DR / DZ> 0: X (Z) = SQRT (R <2> (Z) -YMIN <2>), Y (Z) = YMIN, Z = Z (T), where T corresponds to the process time, so that Z acts as a master axis for the synchronization of the participating NC axes.
    The arrangements of three linear axes X, Y, Z corresponding to a Cartesian coordinate system are only to be understood as examples and serve to illustrate the principle on which the invention is based.
    According to alternative embodiments, the invention can be implemented with the aid of linear axes which are inclined and / or skewed to one another, i.e. in particular are not arranged perpendicular to each other. Alternatively or in addition, pivot and / or rotary axes can be used to implement the teaching according to the invention.
    What is decisive here is not the relative arrangement of the respective NC axis or the extent to which the relevant NC axis causes a rotary and / or translational relative movement, but that the condition required according to the invention is met that while the dressing path is being traversed and the form dressing roller is in shaping contact with the grinding tool, it is provided that each of the NC axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller has an axis speed whose amount is greater than zero, none of these NC axes reversing direction or coming to a standstill comes.
    Reference number
    1 target path 2 actual path 3 local minimum 4 deviation / double arrow 10 grinding tool profile cross-section, tool profile 12 grinding tool / grinding wheel / grinding worm 14 machine tool 16 local minimum 18 form dressing roller 20 contact point 22 contact point 24 contact point 26 dressing path 28 contact point 30 contact point 32 contact point X Linear axis, coordinate axis Y Linear axis, coordinate axis Z Linear axis, coordinate axis
    权利要求:
    Claims (8)
    [1]
    1. Method for dressing a grinding tool by means of a machine tool, with the process steps:- providing a dressable grinding tool (12);- Dressing the grinding tool (12) by means of a form dressing roller (18),- wherein the tool profile (10) to be produced on the grinding tool is formed by a contact between the rotating grinding tool (12) and the rotating form dressing roller (18) along a dressing path (26),- The dressing path is traversed automatically with the aid of two or more NC axes (X, Y, Z) of the machine tool (14), which generate a relative movement between the rotating grinding tool (12) and the rotating form dressing roller (18);characterized in that- is provided while the dressing path (26) is being traversed and while the form dressing roller (18) is in shaping contact with the grinding tool (12),- That each of the relative movement between the rotating grinding tool (12) and the rotating form dressing roller (18) generating NC axes (X, Y, Z) has an axis speed whose amount is greater than zero, with none of these NC axes (X, Y, Z) reverses direction or comes to a standstill.
    [2]
    2. The method according to claim 1,characterized in that- The dressable grinding tool (12) is a dressable grinding wheel (12).
    [3]
    3. The method according to claim 2,characterized in that- The grinding wheel (12) has a wheel profile (10), the wheel profile cross section (12) of which has at least one local minimum and / or at least one local maximum,- The local minimum and / or local maximum being dressed in a continuous overflow.
    [4]
    4. The method according to claim 1,characterized in that- The grinding tool (12) is a dressable grinding worm (12).
    [5]
    5. The method according to claim 4,characterized in that- the grinding worm (12) has a worm profile (10), the worm profile cross section of which has a plurality of local minima and / or local maxima,- At least one local minimum and / or one local maximum being dressed in a continuous overflow.
    [6]
    6. The method according to any one of the preceding claims,marked by- A profile (10) of the grinding tool (12), the profile cross-section (10) of which has one or more local minima and / or local maxima and can be dressed by a two-dimensional axis movement by means of two NC axes (Y, Z) of a machine tool,- A further third axis (X) is additionally used to carry out the dressing along a three-dimensional dressing path (26).
    [7]
    7. The method according to any one of the preceding claims,characterized in that- One of the NC axes (X, Y, Z) generating the relative movement between the rotating grinding tool (12) and the rotating form dressing roller (18) is a linear axisand or- One of the NC axes generating the relative movement between the rotating grinding tool (12) and the rotating form dressing roller (18) is a pivot axis or axis of rotation.
    [8]
    8. The method according to any one of the preceding claims,characterized in that- One or more NC axes are linear axes (X, Y, Z), each of the linear axes (X, Y, Z) generating the relative movement between the rotating grinding tool and the rotating form dressing roller having an axis speed whose magnitude is greater than or equal to 1 µm / s, in particular greater than or equal to 10 µm / s,and or- One or more NC axes are rotary axes or swivel axes, each of the rotary axes or swivel axes generating the relative movement between the rotating grinding tool and the rotating form dressing roller having a rotational speed or swivel speed whose amount is greater than or equal to 1 * 10 <-6> ° / s is, in particular greater than or equal to 10 * 10 <-6> ° / s.
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    引用文献:
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    JPS61136769A|1984-12-05|1986-06-24|Ooiwa Giken:Kk|Molding method and its device of grinding stone in nc wood router|
    US5573449A|1994-03-16|1996-11-12|The Gleason Works|Threaded grinding wheel, method of dressing, and grinding a workpiece therewith|
    JP5586409B2|2010-10-08|2014-09-10|Ｎｔｎ株式会社|Dressing equipment|
    JP5608623B2|2011-10-03|2014-10-15|株式会社アライドマテリアル|Rotary dresser and manufacturing method thereof|
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    法律状态:
    2020-10-30| PFUS| Merger|Owner name: KLINGELNBERG AG, CH Free format text: FORMER OWNER: KLINGELNBERG AG, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    EP19158274.1A|EP3698919A1|2019-02-20|2019-02-20|Method for dressing a grinding tool|
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