WO2012152620A1

WO2012152620A1 - Stabilizing device for a cutting disk

Info

Publication number: WO2012152620A1
Application number: PCT/EP2012/058002
Authority: WO
Inventors: Roger Knetsch
Original assignee: Herbert Arnold Gmbh & Co. Kg
Priority date: 2011-05-06
Filing date: 2012-05-02
Publication date: 2012-11-15
Also published as: CN103501943A; CN103501943B; DE102011050189A1

Abstract

The invention relates to a stabilizing device (10) for at least one cutting disk (60), comprising at least one guiding element (102, 102'), which is movably arranged relative to the at least one cutting disk (60). Furthermore, a control device (108) is provided, which controls the position of the at least one movable guiding element (102, 102') relative to the at least one cutting disk (60) according to the geometry of a material (70) to be cut. The invention further relates to a cutting device (1), comprising at least one cutting disk (60) and at least one such stabilizing device (10), and to a method for cutting materials, in particular short-chipping materials, by means of such a cutting device (1).

Description

Designation: Stabilizer for a cutting disc Description

The invention relates to a stabilizing device for at least one

Cutting disc with at least one guide means which is arranged to be movable relative to the at least one cutting disc. Furthermore, the invention relates to a separating device with at least one cutting disc and at least one such stabilizing device and a method for separating in particular short-chipping materials, such as materials for the semiconductor industry.

Very often multicrystalline or monocrystalline silicon materials are used in the semiconductor industry. Multicrystalline silicon materials are mainly produced in a crucible melting process. During production, large blocks are formed, which are cut into individual columns using special separation techniques.

Monocrystalline silicon materials are frequently produced by the crucible pulling process according to Czochralski (see Journal of Physical Chemistry, 92, 1918, pp. 219-221). This polycrystalline silicon is melted in quartz crucibles. Then, a thin seed crystal is dipped in the melt and slowly rotated

pulled out. By adding dopants and using more targeted

Temperature adjustment is a modification of the physical semiconductor properties possible. Thus, by using the Tiegelziehverfahrens by pulling out of the

Melt-produced ingot with an outer diameter of up to 300mm and a maximum length of 3 m are generated. From the ingots are in one

Separation process also produced columns.

The separation process for column preparation takes place in both previously described

Process with the same separation devices. The separators may include diamond-studded discs, diamond-studded bands, or diamond-studded wires wetted with a liquid abrasive. Since the materials used are very expensive, should be with the aforementioned

Separators thin and accurate cuts are made possible. Therefore, it is desirable, for example, when separating with a cutting disc that this is made as thin as possible. However, thin cutting edges are very susceptible to faults and, even at the slightest mechanical overstress, tend to produce an inaccurate cut and destruction. Therefore, it may sometimes be necessary to guide or stabilize thin cutting wheels during the cutting process.

From EP 0 016 688 B1 a separating device with a cutting disc is known. At the separating device, a stabilizing device is provided which a

Having guide means for guiding the cutting disc. The guide means itself has flanges which partially surround the cutting disk from both sides, such that in each case a space is formed between the flanges and the cutting disk. The guide means is supplied with a fluid, in particular water, so that a fluid film stabilizing the separating disk is formed in the space between the flange and the separating disk. The guide means is connected via a lever and a cable connected to the lever with a stationary rail. By means of the lever and the rope is achieved that the flanges of the guide means are held automatically depending on the penetration depth of the cutting disc in the material to be machined at a constant height above the material to be separated.

A disadvantage of this embodiment is that the deflection of the lever and thus the deflection of the guide means during the separation process takes place only in a fixed predetermined ratio to the downward movement of the cutting wheel. In particular, the length of the rope must be chosen so that the

Guide means when lowering the cutting disc in no case with the

Workpiece collides. As a result, depending on the geometry or contour of the workpiece, the distance between the guide means and the upper edge of the workpiece can then vary, so that the separating disk is not optimally guided when the distances are too great. For this reason, a sufficiently stable guidance of the cutting disc can be ensured with that separation device only with a limited number of cutting material geometries. The object of the invention is therefore to improve a stabilizing device or a separating device of the type mentioned in such a way that it can be used for as many different geometries of the material to be separated with sufficiently stable guidance of the cutting disc.

This object is achieved by a stabilization device according to claim 1 and a method for separating materials according to claim 14.

Advantageous embodiments of the invention are the subject of the dependent claims.

The stabilizing device according to the invention is preferably in a

Separating device used for separating in particular short-chipping materials for the semiconductor industry. The separating device has at least one rotating cutting disc, which at least partially by at least one such

Stabilization device is performed.

For this purpose, the stabilization device has at least one relative to the

at least one cutting disc movably arranged guide means. In this case, the guide means may be formed, for example, as a fluid guide means and having two flanges which surround a part of the cutting disc such that in each case a space is formed between the flanges and the cutting disc. The flanges of the guide means engage around the cutting disc preferably on opposite sides of the blade. Via at least one supply line, a fluid, in particular water, can be supplied via the guide means and the flange into the space between the flange and the separating disk in such a way that a fluid film forms between the flange and the separating disk, which has a stabilizing guiding force, in particular in the axial direction exerts the cutting disc.

In addition, the fluid film advantageously causes cooling of the cutting disk. In addition to fluid guiding means, other guide means, such as, for example, contact guidance means, are conceivable which guide the cutting disc in particular in the axial direction. Preferably, pairs of each arranged on one side of the cutting disc, opposite guide means are provided. According to the invention, the stabilization device has a control device which controls the position of the at least one movable guide means relative to the at least one separating disc depending on the geometry of the material to be separated.

Precise positioning of the guide means relative to the cutting disc in

The dependence of the geometry of the material to be separated is relevant insofar as the cutting disc tends to a stronger deflection and thus to a less accurate separation process, the farther away the guide means of the separation region between cutting disc and the material to be separated. Furthermore, there is the danger that the cutting disc is not sufficiently cooled and therefore damaged in a too wide deflection of the guide means, which may have a cooling function for the cutting disc in addition to the leadership function. On the other hand, that may

Guide means also do not get too close to the material to be separated, since then there is a risk that, for example, the flanges of the guide means abut against the material to be separated. In such a case, the blade can not penetrate deeper into the material to be separated or a guide of the blade is no longer guaranteed.

The position control is therefore preferably such that the guiding means of the stabilizing device on the one hand in no case collide with the workpiece to be separated during the cutting or cutting process, but on the other hand always at the optimum distance, i. preferably in the shortest possible distance, is positioned to the contour of the material to be separated. Thus, it is advantageously ensured that the cutting disk, when it moves through the workpiece, is always sufficiently stabilized. The control device is

preferably designed so that the guide means can follow in its position all movements of the cutting wheel in the cutting plane. Thus, with such a stabilized, in particular thin, cutting disc very precise cuts on any shaped materials can be performed. According to a first advantageous embodiment of the invention, it may be provided that the control device, the position of the at least one guide means relative to the at least one cutting disc also in

Dependence of the penetration depth of the cutting disc in the material controls. In this way, another parameter in the position control of the

at least one movable guide means relative to the at least one cutting disc is taken into account, whereby the stability of the cutting wheel guide and thus the quality and precision of the cut performed further increases. According to a further advantageous embodiment of the invention, the

Control device a link guide for transmitting an adjusting movement to the at least one movable guide means and / or a

Drive device for generating an adjusting movement of the at least one movable guide means.

The use of a slotted guide is characterized i.a. characterized by the fact that the

Adjustment movement of the guide means during the cutting process stable, in particular reproducible, is guided. In addition, one can

Sliding guide can be used to transfer the movement of another component to the movable guide means. Preferably it is

provided that the movement of the cutting disk is transferred relative to the material to be cut by means of the slide guide on the guide means to position it again relative to the cutting disc depending on the material geometry and / or penetration depth of the cutting disc. For this purpose, for example, the backdrop of the slotted guide can be arranged on a component of the separating device that moves together with the cutting disc relative to the cutting material during the cutting process, whereas the corresponding

Counter guide element of the slotted guide is in operative connection with the movable guide means. In this way, the

Positioning of the guide means relative to the cutting disc on one side and the feed movement of the cutting disc in the cutting material on the other side coupled together. In contrast, a separate drive device for generating an adjusting movement of the at least one movable guide means is characterized in that the positioning of the guide means is mechanically independent of the feed movement of the cutting disc feasible. In particular, it is achieved that the adjustment of the guide means, unlike in the known from the prior art stabilizing device, regardless of the penetration depth of the cutting disk can be done in the workpiece. Of course, it is also conceivable to combine both possibilities for generating or transmitting an adjustment movement to the at least one guide means with each other.

According to a further advantageous embodiment of the invention, the at least one movable guide means is displaceable perpendicular to the disc plane of the cutting disc. This degree of freedom of movement can be used, in particular, to vary the axial distance between the cutting disc and the guide element, in particular when it is a fluid guide means. This makes it possible to influence the axial guiding force and the stability and the running behavior of the cutting disc in an advantageous manner.

Furthermore, the cutting edge position of the guide means can thus be changed.

Furthermore, it can be provided that the at least one guide means is pivotable about an axis of rotation perpendicular to the plane of the pane, preferably outside the at least one guide means.

In particular, when this axis of rotation coincides with the axis of rotation of the blade, is achieved in an advantageous manner that the guide means moves relative to the cutting disc relative to the cutting only on a concentric circular path relative to the blade, so the latter always at points with the same or speed tangential velocity is stabilized. In an advantageous manner, the running behavior of the Cutting disc and thus the stability of the cutting disc guide during the entire cutting process constant.

According to a further advantageous embodiment of the invention, the at least one movable guide means is operatively connected to the slide guide and / or the drive device via a lever device rotatable about the rotation axis. Lever devices have the advantage that they allow a translation of an adjustment, so that in the present case with an advantageous choice of the leverage, a particularly precise positioning of the guide means can be achieved relative to the cutting disc. Thus, it can be provided, for example, that the at least one guide means is arranged at one end and the slotted guide at the other end of the lever.

Alternatively, there is also the possibility that the drive means, e.g. a linear actuator which engages the end opposite the guide means to actuate the lever.

To the positioning of the at least one guide means relative to

To enable cutting disc depending on as many different contours or geometries of the material to be cut, it is provided according to a particularly preferred embodiment of the invention that the backdrop of the slotted guide is interchangeable, i. that the control device with

different sliding guides can be equipped. To the

To ensure interchangeability, the slotted guide is preferably releasably or detachably arranged on the stabilizing device, for example on the lever device, so that it can be exchanged for another link guide with another backdrop. For example, curved, in particular circular, or polygon-like link profiles are conceivable.

Due to the interchangeability can thus advantageously be selected depending on the geometry of the material to be separated in each case a suitable link guide and attached to the control device. This can be done in particular the aforementioned disadvantages of the prior art

avoid.

In addition to the interchangeability of the scenes, it may also be provided that the corresponding or cooperating with the scenes

Counter guide elements of the slotted guide are also interchangeable. As counter-guide elements, for example sliding blocks and / or rollers and / or extensions, in particular cylindrical or rod-like extensions are conceivable. According to a further advantageous embodiment of the invention, it is provided that either the slide or the counter-guide elements relative to

Cutting material are arranged stationary. It is also conceivable, however, that both the slide and the counter-guide element during the separation process are movable relative to Schneidgut. As a result, the number of degrees of freedom for stabilizing the cutting disk is advantageously increased.

The drive device may be, for example, a linear drive, in particular a piezoactuator. The linear drive has the advantage that in particular very small and precise deflections of the guide means are possible by the combination with the lever device described above. In addition to piezo actuators are also pneumatic actuators and / or

hydraulic drives and / or servomotors conceivable. Of course, the design of the drive device is not limited to linear drives. In a further preferred embodiment, in addition to the at least one movable guide means, at least one, in particular two, guide means arranged so as to be stationary relative to the separating disk may also be provided for guiding the cutting disk. Preferably, the two are stationary and the

arranged at least one movable guide means in the form of an isosceles triangle, wherein in particular the axis of rotation of the cutting disc can be located in the center of the triangle. In this way, a particularly stable and symmetrical guidance of the cutting disc is ensured. Is possible but also that the different guide means act on the cutting disc with different executives, for example by the fluid pressure and / or flow is chosen differently. According to a particularly preferred embodiment of the stabilizing device according to the invention is located on each side of the at least one cutting disc depending at least one movable guide means and at least one, in particular two stationary guide means. Particularly preferably, two corresponding guide means face each other, so that the cutting disc is guided in the manner of a vice like a three-point support.

According to a further advantageous embodiment of the invention, a

Rear part device, in particular a spring, be provided, the

for example, acts on the one end of the lever device. This can be ensured in a particularly simple manner that the movable

Guide means after the separation process is returned to its original position relative to the cutting wheel.

A further advantageous embodiment of the invention does not only see one

Control, but also a regulation of the guide means positions relative to the cutting disc depending on the geometry of the material to be separated before. The corresponding method according to the invention is therefore characterized in that before and / or during the separation process, the position of the at least one movable guide means relative to the cutting disc perpendicular and / or parallel to the disk plane depending on the geometry of the material to be separated

controlled and / or regulated.

For this purpose, a measuring device for detecting the geometry of the material to be cut can be provided, which is preferably connected to the control device for the purpose of regulating the position of the at least one movable guide means. It is also conceivable that the measuring device next to the geometry of

Cutting material also the penetration depth or position of the cutting disc for Material to be cut and / or the position of the guide means relative to the cutting disc in the axial and / or radial direction and / or the flow of fluid determined by the guide means. Of course, with the measuring device also other values can be measured, which can serve as the basis for a control and / or regulation of the guide means position. So it is possible, for example, that

Align guiding means before the separation process in a respect to the material to be separated optimal position. Furthermore, the material contour can be scanned during the separation process and the deflection of the

Guide means and its position perpendicular and / or parallel to the disc plane are adjusted according to the material contour. Also, one can

Positioning of the guide means depending on the penetration depth of the

Cutting disc can be achieved. As a result, the overall quality of the cutting process improves. In addition to the position control and / or control of the movable

Guide means in dependence on the geometry of the material to be cut and / or depending on the depth of penetration into the material to be cut can also control and / or control of the executive, which emanates from the at least one guide means on the cutting disk, depending on the position of the guide means relative to Cutting disc be provided. For example, if the guide means is designed as a fluid guide means, the fluid can be supplied in variable amounts and / or with variable pressure through the flanges of the

Guiding agent to be given to the cutting wheel. It is also conceivable to vary the axial distance between guide means and cutting disc. Through all these measures can be taken either by control and / or regulation targeted influence on the running behavior of the cutting disc.

In a further preferred embodiment, at least two cutting discs can be used to separate the material into the separating device. In each case, separate movable guide means for guiding the two

Cutting discs be provided, either a common

Control device or each separate control devices are assigned. The Using a common control device allows in a particularly simple manner, a synchronous stabilization of the two cutting discs and thus a particularly simple construction of the separator. Furthermore, in the

Version with at least two cutting discs also several stationary

arranged guide means for guiding the two cutting discs may be arranged. In this case, for example, two stationary guide means can be stored on a shared holding means, for example, in an advantageous manner. Incidentally, the structure of the separator differs with several

Cutting discs not from the structure of the separator with only one cutting disc.

Other objects, advantages, features and applications of the present invention will become apparent from the following description of a

Exemplary embodiment with reference to the drawing. All described and / or illustrated features alone or in any meaningful combination form the subject matter of the present invention, also independent of their summary in the claims or their dependency.

1 shows a schematic view of a separating device according to a first embodiment

Embodiment in which the cutting disc is in the home position,

2 shows a schematic view of the separating device according to the first

Embodiment in which the cutting disc is in a penetrating position,

3 shows a perspective view of the separating device according to the first

Embodiment, Fig. 4: a schematic view of the separating device according to a second

Embodiment in which the cutting disc is in a basic position, 5 shows a perspective view of the separating device according to a third

Embodiment.

The separating device 1 shown in Figure 1 has a cutting disc 60, a

Stabilization device 10 and a base 80 on. The base body 80 is coupled to the cutting disk 60 and slidable along a rail 82 in a direction facing or away from a material 70 to be cut. On the main body 80, a projection 81 is provided, on which a spring 40 is attached to an end. Other ends, the spring 40 is coupled to the stabilizer 10.

The cutting disk 60 is partially covered by a cover 83. In this case, the projecting in the direction of the material to be separated 70 part of the cutting disk 60 is not covered by the cover 83. The blade 60 is in a home position, i. in a position in which they are not in the material to be separated 70th

has penetrated. The cutting disk 60 is guided by a provided on the stabilizing device 10, movable guide means 102 and two further guide means 30, 31. The guide means 30, 31 are arranged stationary. The first guide means 30 is connected via a holding means 84 to the base body 80. The mobile one

Guide means 102 and the stationary guide means 30, 31 have the same structure and each have two flanges 131, 132 shown in Figure 3, which in itself

opposite sides of the cutting disc 60 are provided. Between the flanges and the separating disk 60, a gap is formed into which a fluid, in particular water, for guiding and cooling the cutting disk 60 passes. The first guide means 30 is provided in a portion of the cutting disk 60 which is not covered by the cover 83. The second guide means 31 is provided in a portion of the cutting disk 60 which is covered by the cover 83. The second guide means 31 is arranged on the cutting disk 60 in such a way that the center point of the guide means 31 lies on a central axis M of the cutting disk 60, which runs parallel to the rail 82. The first guide means 30 and at the Stabilizing device 10 provided movable guide means 102 are arranged with respect to the central axis M on opposite sides of the blade 60. The stabilizing device 10 is coupled via the cover 83 with the cutting disk 60 and rotatably arranged about the rotation axis 103 with respect to the cutting disk 60. The stabilization device 10 has a lever device 100 with two lever arms 101 and 101 ', the guide means 102 and as part of a

Control device 108, a link guide 109 with a link 1 10 and a corresponding counter-guide element 1 15. In this case, the guide means 102 and the link 1 10 are connected to each other via the lever device 100. The stabilizer 10 is at its end remote from the guide means 102, i. in the region of the backdrop 1 10 coupled to the spring 40. The backdrop 1 10 has three differently designed link sections 1 1 1, 1 12, 1 13. The surface of the third slide section 1 13 has a parallel course to the surface of the first slide section 1 1 1. The area of the second

Sliding section 1 12, by contrast, has an oblique course with respect to the first slotted section 1 1 1.

The counter-guide element 15 has a counter-guide body 22 and a roller 21, which is connected to the counter-guide body 22. The roller 21 is in contact with the surface of the first slide section 1 1 1 facing the counter guide element 15. The counter-guide element 1 15 is arranged stationary in the separator 1.

Figure 2 shows the separating device 1 according to the first embodiment, wherein the cutting disc 60 is in a penetrating position. That is, the cutting disk 60 has been moved in the direction of the material to be separated 70 along the rail 82 and at least partially penetrated into the material to be separated 70. The roller 21 of the counter-guide member 15 is 15 with the surface of the second

Scenery section 1 12 of the scenery 1 10 in contact. Due to the course of the surface of the second sliding section 1 12 and the fixed arrangement of the

Counter guide element 1 15 acts a force on the slide 1 10 and thus on the stabilizing device 10. This force causes rotation of the entire

Lever means 100 and thus also a rotation of the movable guide means 102 about the rotation axis 103. The guide means 102 is rotated such that during the separation process or the penetration of the cutting disc 60 in the

Material 70 does not come into contact with the material 70.

Figure 3 shows a detailed perspective view of the separation device shown schematically in Figures 1 and 2. The illustrated in Figure 3

Separating device shows in comparison to Figures 1 and 2, in particular a detailed representation of the stabilizing device 10. In the following, therefore, only the stabilizing device 10 will be described in more detail.

The guide means 102 of the stabilization device 10 has two flanges 131, 132 which partially surround the cutting disk 60. The flanges 131, 132 are provided on opposite sides of the blade 60. Furthermore, the guide means 102 has two supply lines 140 for supplying fluid into the

Guide means 102 on. The fluid flows from a bore, not shown, in the respective flange 131, 132 into a space between the flange 131, 132 and the cutting disc 60. The guide means 102 is arranged on a support means 130 which is connected to the lever arm 101 of the lever device 100. Also, the first stationary and not shown in the figure 3 second stationary guide means 30, 31 each have supply lines 140 for the supply of fluid in the respective

Gap between the flange and the blade 60 on.

The gate 1 10 is releasably secured to the lever arm 101 'of the lever device 100. The scenery 1 10 has a total of four different interconnected

Slotted sections 1 1 1, 1 12, 1 13, 1 14 on. The individual link sections 1 1 1, 1 12, 1 13, 1 14 differ from each other in their angle, they with the side surface of the lever arm 101 '. For example, the angle between the surface of the second gate section 1 12 and the surface of the first, parallel to the lever arm 101 'extending gate section 1 1 1 126 ° that between the surface of the third gate section 1 13 and the surface of the first gate section 1 1 1 1 10 ° and the one between the surface of the fourth Auslenkabschnitts 1 13 and the surface of the first gate section 1 1 1 89 °. The role 21 of

Counter guide element 1 15 is in the arrangement shown in Figure 3 with the surface of the first link portion 1 1 1 in contact. In the following, the deflection of that shown in Figures 1 to 3

Stabilization device 10 described. To carry out the separation process, the base body 80 is lowered along the rail 82 in the direction of the material 70 to be separated, as a result of which the cutting disk 60 connected to the base body 80 is also lowered. Since the stabilizing device 1 0 is connected to the cutting disc 60, this is also lowered. The counter-guide element 1 15 is arranged stationary and is not moved or lowered.

Before lowering the stabilizing device 10, the roller 21 of the

Counter guide element 1 15 with the surface of the first link portion 1 1 1 in contact. Upon lowering of the stabilizing device 10 and thus the slide 1 10 and the lever device 100, the roller 21 comes first in contact with the first surface of the second slide section 1 12 in contact. Since the surface of the second slide section 1 1 1 to the surface of the first slide section 1 1 1 extends obliquely and the counter-guide member 1 15 can not move or yield, a force is exerted on the slide 1 10 and the lever device 100. The force causes a rotation of the stabilizing device 10 about the rotation axis 103. In a further lowering of the stabilizing device 10, the roller 21 comes into contact with the surfaces of the further deflection sections 1 13, 1 14 whose formation determines the degree of deflection of the stabilizing device 10.

After a separation process, the base body 80 is moved in a direction opposite to the aforementioned direction. Due to the coupling of Stabilization device 10 with the spring 40, the stabilizing device 10 is rotated back into its basic position shown in Figure 1.

FIG. 4 shows a separating device 1 according to a second embodiment, in which the separating disc 60 is in a basic position. The separating device 1 shown in FIG. 4 essentially corresponds to the separating device shown in FIGS. 1 to 3. Therefore, only differences between the two separation devices will be discussed below. In this case, the same reference numerals designate the same components.

In the separator 1 shown in Figure 4, a measuring device 50 is provided, which is connected via a connecting means 52 with the cover 83. Furthermore, the separating device 1 has a control device 108, which is connected to the measuring device 50 and an actuating device 20 '.

The stabilization device 10 has only one of a link portion 1 1 1 existing link 1 10, wherein the link portion 1 1 1 parallel and not offset to the counter-guide element 1 15 facing side surface of the lever arm 101 'extends.

The counter-guide element 1 15 has a roller 21 which is in contact with the sliding section 1 1 1. The counter-guide member 1 15 is not arranged stationary in contrast to the counter-guide element shown in Figures 1 to 3, but designed to be movable. More precisely, the counter-guide member 1 15, in particular the roller 21, after being driven by the control means 108 by means of a drive means 20, a movement in the direction of

Perform stabilization device 10. The movement of the stabilization device 10 takes place transversely to a stabilizer longitudinal axis S. Die

Stabilizer longitudinal axis S extends through the axis of rotation 103 and extends in the undeflected state of the stabilizer 10 parallel to the central axis M of the cutting disc 60th In the following, the deflection of the stabilization device 10 in the embodiment shown in FIG. 4 will be explained. The material geometry is measured before the beginning of the separation process or the movement of the cutting disk 60 by means of the measuring device 50. The measuring device 50 transmits the ascertained values to the control device 108. This device actuates the values depending on the measured value

Drive device 20. As a result of the actuation of the drive device 20, the roller 21 moves in the direction of the stabilization device 10 and thus exerts a force on the link 1 10 and the lever device 100 of the stabilization device 10, which causes a rotation of the stabilizing device 10. In this case, the deflection of the stabilizing device 10 is greater the further the roller 21 is moved.

Only when the stabilizing device 10 is deflected, the base body 80 and thus the blade 60 is lowered over the rail 82. The control device 108 monitors via the measuring device 50 the material geometry during the

Separation process and can with appropriate training of the material a

Adjustment of the deflection of the stabilization device 10 effect. Furthermore, the control device 108 monitors via the measuring device 50, the deflection of the cutting disk 60 in a direction perpendicular to the direction of movement of the

Cutting disc 60 along the rail 82 and can adjust the deflection of the blade 60 by a pressure adjustment or a change in pressure in the guide means.

FIG. 5 shows a separating device according to a third embodiment. The third embodiment differs from the two previous embodiments, among others. in that, in the third embodiment, two cutting discs 60, 60 'for

Cutting the material are provided. The other components of

Separating device are, unless otherwise stated below, the same structure as the components of the two embodiments described above.

The cutting discs 60, 60 'are arranged coaxially with each other and have the same diameter. The guide of the two cutting discs 60, 60 'takes place in each case by a guide means 102, 102', which is provided on a stabilizing device 10. The guide means 102, 102 'are analogous to that shown in FIG Guiding constructed and arranged on a single support means 130. The support means 130 is connected to the lever device 100 of the stabilization device 10. As a result, by providing the two guide means 102, 102 'on a single support means 130, it is achieved that only a single lever device 100 is required for the deflection of the two guide means 102, 102'.

The cutting discs 60, 60 'are in addition to the guide means 102, 102' additionally guided by a plurality of guide devices 30, 30 ', 31, 31'. More precisely, in each case two guide devices 30, 31, 30 ', 31' per cutting disc 60, 60 '

intended. In this case, the guide devices 30, 31, 30 ', 31' in each case the same points of the two cutting discs 60, 60 'are provided. This is achieved by arranging the first guide devices 30, 30 'on a common first holding means 84 and the second guiding devices 31, 31' on a common second holding means 84 '.

The workpiece is inserted along its longitudinal axis between the two cutting discs 60, 60 '. That is, the longitudinal axis of the workpiece is perpendicular to the direction of the cutting disk 60, 60 ', along which the cutting disk 60, 60' is lowered.

LIST OF REFERENCE NUMBERS

1 separating device

10 stabilization device

20 drive device

21 roll

22 Gegenführungskörper

30, 31, 30 ', 31' stationary guide means

40 spring

50 measuring device

52 connecting means

60 cutting disc

70 material

80 basic body

81 lead

82 rail

83 cover

84, 84 'holding means

100 lever device

101, 101 'lever arm

102, 102 'movable guide means

103 axis of rotation

108 control device

109 Sliding guide

1 10 backdrop

1 1 1, 1 12, 1 13, 1 14 gate section

1 15 counter-guide element of the slotted guide

130 vehicle

131, 132 Flange

140 feed line

M central axis

S stabilizer longitudinal axis

Claims

claims

1 . Stabilizing device (10) for at least one cutting disc (60) with

at least one guide means (102, 102 ') movably arranged relative to the at least one cutting disc (60), characterized in that a control device (108) is provided which determines the position of the at least one movable guide means (102, 102') relative to the at least one one

Cutting disc (60) depending on the geometry of a material to be separated (70) controls.

2. stabilization device (10) according to claim 1, characterized in that the control device (108) the position of the at least one movable guide means (102, 102 ') relative to the at least one cutting disc (60) depending on the penetration depth of the cutting disc (60). in the material (70) controls.

3. stabilization device (10) according to claim 1 or 2, characterized in that the control device (108) has a slotted guide (109) for transmitting an adjusting movement to the at least one movable guide means (102, 102 ') and / or a drive device (20). to produce a

Adjusting movement of the at least one movable guide means (102, 102 ').

4. stabilization device (10) according to one of claims 1 to 3, characterized

characterized in that the at least one guide means (102, 102 ') is displaceable perpendicular to the disc plane of the cutting disc (60) and / or about an axis of rotation perpendicular to the disc plane and preferably located outside the at least one guide means (102, 102'). 103) is pivotable.

5. stabilization device (10) according to claim 4, characterized in that the at least one movable guide means (102, 102 ') via a to the Rotary axis (103) rotatable lever device (100) with the slotted guide (109) and / or the drive device (20) is in operative connection.

6. stabilization device (10) according to one of claims 1 to 5, characterized

in that the counter-guide elements (15) of the link guide (109) cooperating with the link (110) of the link guide (109) have at least one sliding block and / or at least one roller and / or at least one extension and / or as a sliding block and / or or roller and / or extension are formed.

7. stabilization device (10) according to claim 6, characterized in that the link (1 10) and / or the counter-guide elements (1 15) are interchangeable.

8. stabilization device (10) according to claim 5 or 6, characterized in that either the slide (1 10) or the counter-guide elements (1 15) are arranged stationary relative to the material (70).

9. stabilization device (10) according to one of claims 3 to 8, characterized

in that the drive device (20) has a linear drive,

in particular a piezoactuator.

10. stabilization device (10) according to one of claims 1 to 9, characterized

characterized in that at least one, in particular two, relative to

Cutting disc (60) fixedly arranged guide means (30, 31, 30 ', 31') for guiding the cutting disc (60) are provided.

1 1. Stabilization device (10) according to one of claims 1 to 10, characterized

in that a rear part device, in particular a spring (40), is provided for returning the at least one movable guide means (102, 102 ') to an initial position.

12. stabilization device (10) according to one of claims 1 to 1 1, characterized in that a measuring device (50) for detecting the geometry of the material to be cut (70) is provided with the control device (108) for

Position control of at least one movable guide means (102, 102 ') is connected.

13. Separating device (1) with at least one separating disk (60) and at least one stabilizing device (10) according to one of claims 1 to 12.

14. A method for separating, in particular short-chipping, materials with a separating device (1), wherein the separating device (1) at least one

Separating disc (60) and a stabilizing device (10) with at least one relative to the cutting disc (60) movably arranged guide means (102, 102 '), in particular a separating device (1) and / or a

Stabilizing device (10) according to one of the preceding claims, characterized in that before and / or during the separation process, the position of the at least one movable guide means (102, 102 ') relative to

Cutting disc (60) is controlled and / or regulated vertically and / or parallel to the disc plane depending on the geometry of the material to be separated (70).

15. The method according to claim 14, characterized in that before and / or

during the separation process, the position of the at least one movable guide means (102, 102 ') relative to the cutting disc (60) perpendicular and / or parallel to the disc plane as a function of the penetration depth of the cutting disc

(60) is controlled and / or regulated in the material (70).

16. The method according to claim 14 or 15, characterized in that the at least one guide means (102, 102 ') on the cutting disc (60)

outgoing manager depending on the position of the moving

Guide means (102, 102 ') relative to the cutting disc (60) controlled and / or regulated.