EP2612727A1 - Grinding machine - Google Patents
Grinding machine Download PDFInfo
- Publication number
- EP2612727A1 EP2612727A1 EP12150491.4A EP12150491A EP2612727A1 EP 2612727 A1 EP2612727 A1 EP 2612727A1 EP 12150491 A EP12150491 A EP 12150491A EP 2612727 A1 EP2612727 A1 EP 2612727A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- abrasive
- grinding
- impacts
- drive
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000003082 abrasive agent Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 8
- 238000010009 beating Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 206010013710 Drug interaction Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/22—Accessories for producing a reciprocation of the grinding belt normal to its direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
Definitions
- the invention relates to a grinding machine, in particular a belt or orbital sander, for grinding a surface of a material to be sanded, wherein the sanding machine comprises an abrasive on a base and a drive which causes the base of the abrasive in a horizontal movement, the tangential or parallel to the surface runs.
- the invention further relates to a method of grinding a surface of an abrasive article, in particular for belt or orbital sanding, wherein an abrasive is used on a backing and the backing of the abrasive is placed in a horizontal movement tangent or parallel to the surface.
- Grinders are known to any home improvement or industrial user, for example in the form of orbital sanders or belt sanders.
- An orbital sander comprises a support surface, referred to as a sanding pad, onto which a sandpaper is stretched.
- the abrasive paper comprises abrasive on a base, which must not necessarily consist of cellulose-based material despite the naturalized designation "paper".
- the sanding pad is displaced by a drive unit in horizontal movement, ie in movements parallel or tangential to the surface of the sanding material.
- a similar principle use rotary sander, which have a rotating sanding pad.
- the base of the abrasive is formed as a band, which is set by a corresponding drive in circulation and is supported in the grinding area on a stationary support plate.
- the grinding movement here is not circular or a closed trajectory, but longitudinal.
- a longitudinal grinding movement is also in grinding machines with rotating abrasive, z. As grinding wheels, before.
- the invention is therefore based on the object of specifying a grinding machine or a method for grinding a surface, which achieves a higher grinding performance, without burdening the user heavily.
- a grinding machine for grinding a surface of an abrasive material, which is an abrasive on a substrate, a drive device which causes the base of the abrasive in a horizontal movement, and a beating device which on the pad of the abrasive blows, which are directed in the direction of the abrasive, has.
- the object is further achieved by a method for grinding a surface of a sanding material, in particular for belt or orbital sanding, wherein an abrasive material is used on a substrate, the substrate of the abrasive is placed in a horizontal movement, and the backing of the abrasive blows in the direction be carried out of the abrasive.
- the invention is based on the recognition that in the direction of the abrasive material on the pad of the abrasive exerted blows in tips of the abrasive, which are usually formed as grains, caused a significant increase in pressure of the grains on the surface to be ground. Thus, the grinding performance increases without a user would have to use increased force.
- the strokes exerted by the beater not only increase the grinding performance by increasing the pressure at the tips of the abrasive grains, at the same time is due to the beating the abrasive on the substrate much less with sanding dust, because this is "shaken off" by the blows or compressed so that the grains of the abrasive remain free.
- the grinding performance is increased, it also increases the life of the abrasive used, which must now be changed less frequently.
- the shocks are applied to the substrate which carries the abrasive.
- a technically simple realization is achieved in that the blows on a parallel to the horizontal movement lying support surface are exerted, which supports the pad.
- the support surface is the surface over which the sanding belt is moved longitudinally.
- the support surface to which the bumps are then applied is the sanding pad. The same applies to a delta sander, a rotary sander or an orbital sander.
- a particularly structurally simple embodiment is achieved when the drive, which moves the abrasive on the substrate on the surface of the abrasive material, at the same time also includes the impact device. The blows are then applied to a component of the drive.
- the impacts are exerted on the support means
- a user of a grinding machine usually wishes to be able to adjust the grinding power.
- a particularly high grinding performance is required, eg. For example, if old paint layers are to be sanded o. ⁇ .
- the grinding performance should be lower. Since the strokes according to the invention affect the grinding performance substantially vertical to the surface, it is expedient to provide an adjustment of impact, impact, stroke, frequency and / or direction of the beats, so that a user can influence the grinding performance as desired on the appropriate setting.
- Horizontal movement is understood in this description to mean any relative movement between the abrasive material and the abrasive material that runs parallel to the surface of the abrasive material or, if this is not flat, tangentially thereto. In particular, this may be a longitudinal horizontal movement, or a movement on a trajectory lying in a horizontal plane. Also, a movement along a circular path or cylindrical surface, such. B. in a power cutter (colloquially referred to as Flex) is a horizontal movement in the sense of this description, since the tangent of the circular path defines the horizontal areas in which the movement is substantially longitudinal.
- Oscillation is understood in this description as any repetition of a movement sequence.
- the term thus includes both harmonic oscillations, syntheses of harmonic oscillations, parametric oscillations, non-linear vibrations, etc. Also not repetitive repetitions of movements, eg. Randomized or pseudo-random repetitions are oscillations according to the understanding of this term used herein.
- the principle of the invention may in particular also for grinding with a rotating abrasive, z.
- a cylindrical grinding wheel as it is known for example for the cutting grinding in the form of cutting discs.
- the zylinderische grinding body is then acted upon with respect to the grinding cylinder radially directed shocks, for example by a corresponding application of the blows on an axis holding the grinding wheel.
- a two-sided storage of the abrasive article is advantageous, but not mandatory.
- the angle range in which the radial impact is located can be specified at the setting device.
- Fig. 1 shows the top view of a sanding pad 2 of an orbital sander.
- the sanding pad 2 serves as a support surface for a sandpaper 3, which carries on its upper side an abrasive 4 in the form of abrasive grains, as in Fig. 2 you can see.
- the sanding pad 2 is brought into a swinging motion 1 which is parallel or tangential to the surface of the abrasive material 5, that is, a horizontal vibration.
- the abrasive 5 is now brought into contact with the abrasive 4, and by the oscillatory movement 1 material is removed from the abrasive 5.
- Fig. 3 shows a schematic view similar to the Fig. 2 ,
- a drive shaft 6 which offset the sanding pad 2 in the horizontal vibration, shown schematically.
- the drive shaft 6 is connected to a drive device 7 which comprises a horizontal drive 8 and a vertical drive 9.
- the entire drive consists of drive shaft 6 and drive means 7.
- the horizontal drive 8 causes the horizontal vibration in Fig. 1 is illustrated by circular symbols.
- the vertical drive 9 superimposed on this horizontal vibration blows, which are directed towards the grit 5.
- these shocks are transmitted to the entire sanding plate 2, which is indicated by schematic arrows 10 in the Fig. 3 is clarified.
- the drive device 7 is adjustable in terms of amplitude, frequency, impact force and other parameters of the horizontal drive 8 as well as the vertical drive 9.
- a control unit C is provided, which is connected via lines not further described with the drive means 7.
- the control unit can also be designed as a simple mechanical action on the drive device 7.
- the beats are provided by the vertical drive 9 in the form of a vertical vibration.
- Vertical impacts are not limited to the embodiment of an orbital sander having a rectangular sanding pad. she can also according to one embodiment Fig. 4 be exerted on a rotating sanding pad 2 or on a support surface 2 of a belt grinder ( Fig. 5 ), in which the movement 1 is a linear movement over the surface.
- Fig. 6 shows in a simple perspective view of an abrasive body 12 of a grinding machine, which is cylindrical.
- This drum-type grinding body 12 eg a cutting disk
- This drum-type grinding body 12 has abrasive means 4 on its cylinder jacket surface.
- the vertical drive 9 acts in this construction of the grinding machine perpendicular to the direction of the drive shaft 6 in order to exert the blows perpendicular to the lateral surface of the grinding wheel 12.
- a two-sided support of the axle 6 is advantageous for this purpose, but not mandatory.
- FIGS. 7 and 8 show a detail of the interaction between the abrasive 4 and 5 Schleifgut the abrasive material 5, due to the grinding process, grinding dust 11 from. Its size, of course, depends on the grain size of the abrasive 4 and the material of the abrasive material 5. This grinding dust involves the risk that the abrasive 4 is added. Then the tips of the abrasive 4 can no longer penetrate through the grinding dust and cause no or at least greatly reduced abrasion of the grit 5.
- the inventive vertical shocks on the pad 3 is briefly increased for a short time, the contact pressure of the abrasive 4 on the sanding 5.
- Fig. 9 shows a modification in two ways.
- the vertical drive 9 acts independently of the drive shaft 6 directly on the sanding pad 2.
- the direction of the beats is not strictly vertical to the surface of the abrasive 5.
- these two features can be realized independently.
- Fig. 10 shows a construction in which the vertical drive 9 in the support surface, in this example, the sanding pad 2, is integrated.
- the sanding pad 2 has z. B. a plurality of vertical drives 9 in the form of vibration elements, which provide the shocks in the form of a vertical vibration.
- a vertical drive 9 provided on or in the sanding pad 2 is sufficient or integrated. If one uses several independently operating vertical drives 9, one can vary the direction of the blows locally, which is represented by the varying arrows 10 in FIG Fig. 10 is illustrated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Schleifmaschine, insbesondere Band- oder Schwingschleifmaschine, zum Schleifen einer Oberfläche eines Schleifguts, wobei die Schleifmaschine ein Schleifmittel auf einer Unterlage und einen Antrieb aufweist, der die Unterlage des Schleifmittels in eine Horizontalbewegung versetzt, die tangential oder parallel zur Oberfläche verläuft.The invention relates to a grinding machine, in particular a belt or orbital sander, for grinding a surface of a material to be sanded, wherein the sanding machine comprises an abrasive on a base and a drive which causes the base of the abrasive in a horizontal movement, the tangential or parallel to the surface runs.
Die Erfindung bezieht sich weiter auf ein Verfahren zum Schleifen einer Oberfläche eines Schleifguts, insbesondere zum Band- oder Schwingschleifen, wobei ein Schleifmittel auf einer Unterlage verwendet wird und die Unterlage des Schleifmittel in eine Horizontalbewegung versetzt wird, die tangential oder parallel zur Oberfläche verläuft.The invention further relates to a method of grinding a surface of an abrasive article, in particular for belt or orbital sanding, wherein an abrasive is used on a backing and the backing of the abrasive is placed in a horizontal movement tangent or parallel to the surface.
Schleifmaschinen sind jedem Heimwerker oder industriellen Nutzer beispielsweise in Form von Schwingschleifern oder Bandschleifern bekannt. Ein Schwingschleifer umfaßt eine als Schleifteller bezeichnete Stützfläche, auf die ein Schleifpapier aufgespannt wird. Das Schleifpapier umfaßt Schleifmittel auf einer Unterlage, die trotz der dafür eingebürgerten Bezeichnung "Papier" nicht zwingend aus zellulosebasiertem Material bestehen muß. Es sind auch nicht papierbasierte Unterlagen bekannt. Der Schleifteller wird von einer Antriebseinheit in Horizontalbewegung, d. h. in Bewegungen parallel oder tangential zur Oberfläche des Schleifgutes, versetzt. Ein ähnliches Prinzip verwenden Rotationsschleifer, die einen rotierenden Schleifteller haben. Weiter gibt es Schleifmaschinen, die eine Exzenterbewegung ausführen, um beim Schleifen oder Polieren unerwünschte Hologrammeffekte zu vermeiden. Bei Bandschleifmaschinen ist die Unterlage des Schleifmittels als Band ausgebildet, welches von einem entsprechenden Antrieb in Umlauf gesetzt wird und im Schleifbereich an einer ruhenden Stützplatte abgestützt ist. Die Schleifbewegung ist hier nicht kreisförmig oder eine geschlossene Bahnkurve, sondern längsverlaufend. Eine längsverlaufende Schleifbewegung liegt auch bei Schleifmaschinen mit rotierendem Schleifkörper, z. B. Schleifscheiben, vor.Grinders are known to any home improvement or industrial user, for example in the form of orbital sanders or belt sanders. An orbital sander comprises a support surface, referred to as a sanding pad, onto which a sandpaper is stretched. The abrasive paper comprises abrasive on a base, which must not necessarily consist of cellulose-based material despite the naturalized designation "paper". There are also no paper-based documents known. The sanding pad is displaced by a drive unit in horizontal movement, ie in movements parallel or tangential to the surface of the sanding material. A similar principle use rotary sander, which have a rotating sanding pad. There are also grinding machines that perform an eccentric motion to avoid unwanted hologram effects when grinding or polishing. In belt grinders, the base of the abrasive is formed as a band, which is set by a corresponding drive in circulation and is supported in the grinding area on a stationary support plate. The grinding movement here is not circular or a closed trajectory, but longitudinal. A longitudinal grinding movement is also in grinding machines with rotating abrasive, z. As grinding wheels, before.
Der Nachteil bekannter Schleifmaschinen besteht darin, daß die Schleifleistung stark vom Anpreßdruck auf die zu schleifende Oberfläche, d. h. das Schleifgut abhängt. Auch tritt je nach Schleifgut früher oder später der Effekt ein, daß das Schleifmittel auf der Unterlage mit Schleifstaub zugesetzt ist. Diese Eigenschaften machen das Schleifen zu einer mühsamen und ermüdenden Aufgabe.The disadvantage of known grinding machines is that the grinding performance is greatly influenced by the contact pressure on the surface to be ground, d. H. the sanding depends. Also occurs sooner or later, depending on the grinded the effect that the abrasive is added to the substrate with sanding dust. These features make grinding a cumbersome and tedious task.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Schleifmaschine bzw. ein Verfahren zum Schleifen einer Oberfläche anzugeben, das eine höhere Schleifleistung erreicht, ohne den Nutzer stark zu belasten.The invention is therefore based on the object of specifying a grinding machine or a method for grinding a surface, which achieves a higher grinding performance, without burdening the user heavily.
Diese Aufgabe wird erfindungsgemäß gelöst durch eine Schleifmaschine, insbesondere Band- oder Schwingschleifmaschine, zum Schleifen einer Oberfläche eines Schleifguts, die ein Schleifmittel auf einer Unterlage, eine Antriebseinrichtung, die die Unterlage des Schleifmittels in eine Horizontalbewegung versetzt, und eine Schlageinrichtung, welche auf die Unterlage des Schleifmittels Schläge ausübt, die in Richtung des Schleifguts gerichtet sind, aufweist.This object is achieved by a grinding machine, in particular belt or orbital sanding machine, for grinding a surface of an abrasive material, which is an abrasive on a substrate, a drive device which causes the base of the abrasive in a horizontal movement, and a beating device which on the pad of the abrasive blows, which are directed in the direction of the abrasive, has.
Die Aufgabe wird weiter gelöst durch ein Verfahren zum Schleifen einer Oberfläche eines Schleifguts, insbesondere zum Band- oder Schwingschleifen, wobei ein Schleifmittel auf einer Unterlage verwendet wird, die Unterlage des Schleifmittels in eine Horizontalbewegung versetzt wird, und auf die Unterlage des Schleifmittels Schläge in Richtung des Schleifguts ausgeübt werden.The object is further achieved by a method for grinding a surface of a sanding material, in particular for belt or orbital sanding, wherein an abrasive material is used on a substrate, the substrate of the abrasive is placed in a horizontal movement, and the backing of the abrasive blows in the direction be carried out of the abrasive.
Die Erfindung beruht auf der Erkenntnis, daß in Richtung des Schleifgutes auf die Unterlage des Schleifmittels ausgeübte Schläge in Spitzen des Schleifmittels, die üblicherweise als Körner ausgebildet sind, einen erheblichen Druckzuwachs der Körner auf die zu schleifende Oberfläche des bewirkten. Damit steigt die Schleifleistung, ohne daß ein Nutzer erhöhte Kraft aufwenden müßte.The invention is based on the recognition that in the direction of the abrasive material on the pad of the abrasive exerted blows in tips of the abrasive, which are usually formed as grains, caused a significant increase in pressure of the grains on the surface to be ground. Thus, the grinding performance increases without a user would have to use increased force.
Die Schläge, welche die Schlageinrichtung ausübt, erhöhen die Schleifleistung nicht nur durch die Druckerhöhung an den Spitzen der Schleifkörner, zugleich setzt sich durch die Schläge das Schleifmittel auf der Unterlage sehr viel weniger mit Schleifstaub zu, denn dieser wird durch die Schläge "abgeschüttelt" oder so verdichtet, daß die Körner des Schleifmittels freigestellt bleiben. Dadurch ist nicht nur die Schleifleistung zusätzlich erhöht, es wächst auch die Standzeit des verwendeten Schleifmittels, das nun seltener gewechselt werden muß.The strokes exerted by the beater, not only increase the grinding performance by increasing the pressure at the tips of the abrasive grains, at the same time is due to the beating the abrasive on the substrate much less with sanding dust, because this is "shaken off" by the blows or compressed so that the grains of the abrasive remain free. As a result, not only the grinding performance is increased, it also increases the life of the abrasive used, which must now be changed less frequently.
Grundsätzlich ist es für die erfindungsgemäßen Vorteile erforderlich, daß die Schläge auf die Unterlage aufgebracht werden, welche das Schleifmittel trägt. Eine technisch einfache Realisierung erreicht man dadurch, daß die Schläge auf eine parallel zur Horizontalbewegung liegenden Stützfläche ausgeübt werden, welche die Unterlage stützt. Im Fall eines Bandschleifers ist die Stützfläche diejenige Fläche, über welcher das Schleifband längs bewegt wird. Im Falle eines Schwingschleifers ist die Stützfläche, auf welche die Schläge dann aufgebracht werden, der Schleifteller. Analoges gilt bei einem Deltaschleifer, einem Rotationsschleifer oder einem Exzenterschleifer.Basically, it is necessary for the advantages of the invention that the shocks are applied to the substrate which carries the abrasive. A technically simple realization is achieved in that the blows on a parallel to the horizontal movement lying support surface are exerted, which supports the pad. In the case of a belt sander, the support surface is the surface over which the sanding belt is moved longitudinally. In the case of an orbital sander, the support surface to which the bumps are then applied is the sanding pad. The same applies to a delta sander, a rotary sander or an orbital sander.
Eine besonders bautechnisch einfache Ausführung erreicht man, wenn der Antrieb, welcher das Schleifmittel auf der Unterlage über die Oberfläche des Schleifgutes bewegt, zugleich auch die Schlageinrichtung umfaßt. Die Schläge werden dann auf ein Bauteil des Antriebs ausgeübt.A particularly structurally simple embodiment is achieved when the drive, which moves the abrasive on the substrate on the surface of the abrasive material, at the same time also includes the impact device. The blows are then applied to a component of the drive.
Im Falle der erwähnten Ausführungsform, bei der die Schläge auf die Stützeinrichtung ausgeübt werden, ist es besonders zweckmäßig, die Schläge auf eine Antriebswelle des Antriebs aufzubringen, welche die Stützfläche in der Horizontalbewegung, d. h. längs der Oberfläche des Schleifgutes bewegt.In the case of the mentioned embodiment, in which the impacts are exerted on the support means, it is particularly expedient to apply the impacts to a drive shaft of the drive, which supports the support surface in the horizontal movement, i. H. moved along the surface of the abrasive.
Ein Benutzer einer Schleifmaschine möchte üblicherweise die Schleifleistung einstellen können. Beispielsweise ist bei gröberen Schleifvorgängen meist eine besonders hohe Schleifleistung gefragt, z. B. wenn alte Farbschichten abgeschliffen werden sollen o. ä. Für einen Feinschliff sollte die Schleifleistung hingegen geringer sein. Da die erfindungsgemäß verwendeten Schläge vertikal zur Oberfläche die Schleifleistung wesentlich beeinflussen, ist es zweckmäßig, eine Einstellung von Schlagkraft, Schlagimpuls, Hub, Frequenz und/oder Richtung der Schläge vorzusehen, so daß ein Benutzer über die entsprechende Einstellung die Schleifleistung wunschgemäß beeinflussen kann.A user of a grinding machine usually wishes to be able to adjust the grinding power. For example, in coarser grinding operations usually a particularly high grinding performance is required, eg. For example, if old paint layers are to be sanded o. Ä. For a fine sanding, however, the grinding performance should be lower. Since the strokes according to the invention affect the grinding performance substantially vertical to the surface, it is expedient to provide an adjustment of impact, impact, stroke, frequency and / or direction of the beats, so that a user can influence the grinding performance as desired on the appropriate setting.
Unter Horizontalbewegung wird in dieser Beschreibung jede Relativbewegung zwischen Schleifgut und Schleifmittel verstanden, die parallel zur Oberfläche des Schleifgutes oder, wenn dieses nicht eben ist, tangential dazu verläuft. Es kann sich dabei also insbesondere um eine längsverlaufende Horizontalbewegung handeln, oder um eine Bewegung auf einer Bahnkurve, die in einer Horizontalebene liegt. Auch eine Bewegung entlang einer Kreisbahn oder Zylindermantelfläche, wie z. B. bei einem Trennschleifer (umgangssprachlich als Flex bezeichnet), ist eine Horizontalbewegung im Sinne dieser Beschreibung, da die Tangente der Kreisbahn die Horizontalbereiche definiert, in der die Bewegung im wesentlichen längsverlaufend ist.Horizontal movement is understood in this description to mean any relative movement between the abrasive material and the abrasive material that runs parallel to the surface of the abrasive material or, if this is not flat, tangentially thereto. In particular, this may be a longitudinal horizontal movement, or a movement on a trajectory lying in a horizontal plane. Also, a movement along a circular path or cylindrical surface, such. B. in a power cutter (colloquially referred to as Flex) is a horizontal movement in the sense of this description, since the tangent of the circular path defines the horizontal areas in which the movement is substantially longitudinal.
Wesentlich für die erfindungsgemäß verwendeten Schläge bzw. die Schlageinrichtung, welche diese Schläge erzeugt, ist es, daß diese Schläge eine vertikale Komponente, bezogen auf die Horizontalbewegung, aufweisen. Diese vertikalen Schläge können besonders einfach durch eine Schwingung des Trägers des Schleifmittels erzeugt werden, die eine Vertikalkomponente in Richtung der zu schleifenden Oberfläche des Schleifgutes umfaßt. Dazu wird beispielsweise die Stützfläche eines Bandschleifers in eine Vertikalschwingung angetrieben. Analoges gilt für einen Schleifteller eines Schwingschleifers, Rotationsschleifers, Exzenterschleifers oder Deltaschleifers oder die Schleifscheibe eines Trennschleifers. Die Bereitstellung der Schläge in Form von Vertikalkomponenten aufweisenden Schwingungen erlaubt weiter eine Vereinfachung des Antriebs. So kann beispielsweise der Antrieb eines Schwingschleifers oder eines Rotations-, Exzenter- oder Deltaschleifers nun so ausgestaltet sein, daß er nicht nur die Horizontalschwingung, sondern auch eine Vertikalschwingung bereitstellt, letztere bevorzugt mit den genannten einstellbaren Parametern.It is essential for the strikes or the impact device used according to the invention which generates these strikes that these strikes have a vertical component relative to the horizontal movement. These vertical impacts can be particularly easily generated by a vibration of the wearer of the abrasive, which is a vertical component includes in the direction of the surface to be ground of the abrasive. For this purpose, for example, the support surface of a belt grinder is driven in a vertical vibration. The same applies to a sanding pad of an orbital sander, rotary sander, eccentric sander or delta sander or the grinding wheel of a cut-off wheel. The provision of the shocks in the form of vibrations having vertical components further allows a simplification of the drive. Thus, for example, the drive of an orbital sander or a rotary, eccentric or delta sander can now be designed so that it not only provides the horizontal vibration, but also a vertical vibration, the latter preferably with said adjustable parameters.
Unter Schwingung wird in dieser Beschreibung jede Wiederholung eines Bewegungsablaufes verstanden. Der Begriff umfaßt also sowohl harmonische Schwingungen, Synthesen aus harmonischen Schwingungen, parametrische Schwingungen, nichtlineare Schwingungen etc. Auch nicht regelmäßige Wiederholungen von Bewegungen, z. B. randomisierte oder pseudostatistische Bewegungswiederholungen sind Schwingungen gemäß dem hier verwendeten Verständnis dieses Begriffes.Oscillation is understood in this description as any repetition of a movement sequence. The term thus includes both harmonic oscillations, syntheses of harmonic oscillations, parametric oscillations, non-linear vibrations, etc. Also not repetitive repetitions of movements, eg. Randomized or pseudo-random repetitions are oscillations according to the understanding of this term used herein.
Das erfindungsgemäße Prinzip kann insbesondere auch zum Schleifen mit einem rotierenden Schleifkörper, z. B. zum Trennschleifen eingesetzt werden, Hierfür ist es zweckmäßig, einen zylindrischen Schleifkörper zu verwenden, wie er beispielsweise für das Trennschleifen in Form von Trennscheiben bekannt ist. Der zylinderische Schleifkörper wird dann mit auf den Schleifzylinder bezogen radial gerichteten Schlägen beaufschlagt, beispielsweise durch eine entsprechende Aufbringung der Schläge auf eine den Schleifkörper haltende Achse. Eine zweiseitige Lagerung des Schleifkörpers ist dafür vorteilhaft, nicht jedoch zwingend. Bevorzugt kann weiter der Winkelbereich, in dem die radiale Schlagwirkung liegt, an der Einstelleinrichtung vorgegeben werden.The principle of the invention may in particular also for grinding with a rotating abrasive, z. For this purpose, it is expedient to use a cylindrical grinding wheel, as it is known for example for the cutting grinding in the form of cutting discs. The zylinderische grinding body is then acted upon with respect to the grinding cylinder radially directed shocks, for example by a corresponding application of the blows on an axis holding the grinding wheel. A two-sided storage of the abrasive article is advantageous, but not mandatory. Preferably, the angle range in which the radial impact is located can be specified at the setting device.
Es versteht sich, daß die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in den angegebenen Kombinationen, sondern auch in anderen Kombinationen oder in Alleinstellung einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the specified combinations but also in other combinations or alone, without departing from the scope of the present invention.
Nachfolgend wird die Erfindung beispielsweise anhand der beigefügten Zeichnungen, die auch erfindungswesentliche Merkmale offenbaren, noch näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Draufsicht auf die Arbeitsseite eines Schwingschleifers,
- Fig. 2
- eine schematische Schnittdarstellung durch den Schwingschleifer der
Fig. 1 , - Fig. 3
- eine Schemadarstellung des Schwingschleifers der
Fig. 2 mit Antriebskomponenten, - Fig. 4 und 5
- Ansichten ähnlich der
Fig. 1 für einen Rotationsschleifer bzw. einen Bandschleifer, - Fig. 6
- eine Schemaansicht einer Schleifmaschine mit einem zylindrischen Schleifkörper,
- Fig. 7 und 8
- schematische vergrößerte Ansichten der Wechselwirkung eines Schleifmittels mit einem Schleifgut,
- Fig. 9
- eine Darstellung ähnlich der
Fig. 3 für einen geänderten Antrieb und - Fig. 10
- eine Darstellung ähnlich der
Fig. 9 zur Verdeutlichung einer inhomogenen Schlagrichtungsverteilung bei einer Schleifmaschine.
- Fig. 1
- a schematic plan view of the working side of an orbital sander,
- Fig. 2
- a schematic sectional view through the orbital sander of
Fig. 1 . - Fig. 3
- a schematic representation of the orbital sander of
Fig. 2 with drive components, - 4 and 5
- Views similar to the
Fig. 1 for a rotary sander or a belt sander, - Fig. 6
- a schematic view of a grinding machine with a cylindrical abrasive body,
- FIGS. 7 and 8
- schematic enlarged views of the interaction of an abrasive with a grind,
- Fig. 9
- a representation similar to the
Fig. 3 for a modified drive and - Fig. 10
- a representation similar to the
Fig. 9 to illustrate an inhomogeneous impact direction distribution in a grinding machine.
In einer Ausführungsform werden die Schläge vom Vertikalantrieb 9 in Form einer Vertikalschwingung bereitgestellt.In one embodiment, the beats are provided by the vertical drive 9 in the form of a vertical vibration.
Vertikale Schläge, wie sie vom Vertikalantrieb 9 bereitgestellt werden, sind nicht auf die Ausführungsform eines Schwingschleifers mit rechteckigem Schleifteller eingeschränkt. Sie können auch in einer Ausführungsform gemäß
Grundsätzlich kommt für den Vertikalantrieb auch eine Schlagvorrichtung in Frage, wie sie bei Schlagbohrmaschinen bekannt ist. Mechanische, elektromechanische, pneumatische oder andere Verfahren zum Erzeugen einer Vertikalschwingung oder anderer vertikaler Schläge sind möglich.In principle, for the vertical drive and a percussion device in question, as is known in impact drills. Mechanical, electro-mechanical, pneumatic or other methods of generating vertical vibration or other vertical impacts are possible.
Claims (14)
gekennzeichnet durch
marked by
dadurch gekennzeichnet, daß
characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12150491.4A EP2612727A1 (en) | 2012-01-09 | 2012-01-09 | Grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12150491.4A EP2612727A1 (en) | 2012-01-09 | 2012-01-09 | Grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2612727A1 true EP2612727A1 (en) | 2013-07-10 |
Family
ID=45507469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12150491.4A Withdrawn EP2612727A1 (en) | 2012-01-09 | 2012-01-09 | Grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP2612727A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116038444A (en) * | 2023-03-27 | 2023-05-02 | 四川托璞勒科技有限公司 | Ultrasonic grinder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10125483A1 (en) * | 2001-05-25 | 2002-11-28 | Hilti Ag | Grinder with additional movement has grinding mechanism removably attached to grinding shoe movable by actuator with horizontal and vertical movements parallel and normal to surface |
| WO2004020146A1 (en) * | 2002-08-21 | 2004-03-11 | Heesemann Juergen | Grinding machine and method for grinding a workpiece |
-
2012
- 2012-01-09 EP EP12150491.4A patent/EP2612727A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10125483A1 (en) * | 2001-05-25 | 2002-11-28 | Hilti Ag | Grinder with additional movement has grinding mechanism removably attached to grinding shoe movable by actuator with horizontal and vertical movements parallel and normal to surface |
| WO2004020146A1 (en) * | 2002-08-21 | 2004-03-11 | Heesemann Juergen | Grinding machine and method for grinding a workpiece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116038444A (en) * | 2023-03-27 | 2023-05-02 | 四川托璞勒科技有限公司 | Ultrasonic grinder |
| CN116038444B (en) * | 2023-03-27 | 2023-06-23 | 四川托璞勒科技有限公司 | Ultrasonic grinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102010019203A1 (en) | Double side grinding | |
| EP1120198B1 (en) | Grinding tool, machine using the same and method using this tool for machining workpieces | |
| DE202012101515U1 (en) | Abrasive and grinding tool | |
| EP2611571B1 (en) | Machine tool, in particular hand-held machine tool | |
| EP2612727A1 (en) | Grinding machine | |
| DE1502379B1 (en) | Orbital sander | |
| EP0875338B1 (en) | Knife ring cutter | |
| DE102005027414B3 (en) | Sliding grinding machine e.g. for parquet flooring, has housing and several wheels with sanding roll provided on roller longitudinal axis which is swivellingly stored and driven parallel to floor space | |
| DE102012018894B4 (en) | Device for conditioning the tread of at least one board-shaped winter sports device and method using such a device | |
| DE3819918C2 (en) | ||
| EP1426156B1 (en) | Tool for shearing and/or planarizing surfaces | |
| DE102013013655B3 (en) | Floor sander | |
| EP1184132B1 (en) | Method and apparatus for grinding workpieces | |
| EP1754569A1 (en) | Method and device for dressing grinding tools | |
| DE2537880C3 (en) | Device for crushing grist | |
| DE2655533A1 (en) | METHOD AND DEVICE FOR DRESSING GRINDING WHEELS | |
| DE4010979A1 (en) | Abrasive tool for e.g. eccentric items - has rectangular strips of abrasive plus binder mounted between two discs on rotating shaft so as to have concave exterior working surface | |
| DE10222956A1 (en) | Fine grinding machine comprises a tool support plate which rotates about an axis of rotation using a drive, a grinding strip pulled over the support surface of the support plate, a workpiece holder, and a pressing devices | |
| DE707968C (en) | Device for continuous grinding of dry and wet material | |
| DE102009060568A1 (en) | Cutting device and cutting knife for cutting rod-shaped products of the tobacco processing industry | |
| WO2012095065A1 (en) | Grinding method | |
| AT513403A2 (en) | Device for conditioning the tread of at least one board-shaped winter sports device and method using such a device | |
| DE202013009844U1 (en) | Sanding attachment for oscillating drive | |
| DE2530579A1 (en) | Cutting tool for metals and brittle substances - has tool face mounted on annular face allowing slight deformation away from horizontal | |
| AT28546B (en) | Grinding process with two conical grinding disks. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20140111 |