EP1112811B1 - Belt grinding machine for grinding of tubing - Google Patents
Belt grinding machine for grinding of tubing Download PDFInfo
- Publication number
- EP1112811B1 EP1112811B1 EP00811127A EP00811127A EP1112811B1 EP 1112811 B1 EP1112811 B1 EP 1112811B1 EP 00811127 A EP00811127 A EP 00811127A EP 00811127 A EP00811127 A EP 00811127A EP 1112811 B1 EP1112811 B1 EP 1112811B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arm
- belt
- grinding
- spring
- pivotal arm
- 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.)
- Expired - Lifetime
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- 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
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
-
- 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
- B24B23/06—Portable grinding machines, e.g. hand-guided; Accessories therefor with abrasive belts, e.g. with endless travelling belts; Accessories therefor
Definitions
- the invention relates to a belt sander for Grinding of tubes according to the generic term of Patent claim 1.
- the disadvantage of this device is the increasing Wrap angle of the sanding belt around this working pipe increasing spring force, which in turn only by a corresponding increase in the contact pressure of the Bandes can be overcome to the pipe to be processed.
- This has the consequence that the tube unilaterally with higher Contact pressure is applied by the abrasive belt and thereby in turn causes uneven grinding image.
- Object of the present invention is to provide a Belt grinding machine, with low effort a wrap of about 180 degrees of a tube possible without significantly increasing it Drive power is required.
- the drive unit 3 for example, an electric motor or a pneumatic motor is shown as a rectangle on the right side.
- the supply line 5 Through the supply line 5, the corresponding energy (electricity or air) is supplied.
- the drive unit 3 With a switch 7, the drive unit 3 can be switched on and off.
- a driven pulley 9 At the front end of the drive unit 3 sits a driven pulley 9.
- two pivot arms 11 and 13 are fixed to the drive unit 3, of which at least one is pivotally mounted about the rotation axis A in the vicinity of the driven pulley 9.
- a handle 15 On firmly connected to the drive unit 3 arm 11 a handle 15 is further attached to which the operator holds the machine 1 with the second hand.
- the pivot arm 13 is pushed away by a spreading spring 17 from the fixed arm 11 (arrow P).
- deflecting wheels 19,21 At the ends of the two arms 11,13 deflecting wheels 19,21 are placed, which carry a circulating around these two pulleys 19,21 and the output roller 9 endless abras
- the known grinding machine during of the grinding process i. between the two Umlenkmannn 19,21 wraps around the grinding belt 23 a tubular workpiece 25 at an angle beta of less as 180 °.
- the wrap angle beta In relaxed state runs the run 26 of the Abrasive belt 23 tangentially from the deflection wheel 19 to the deflection wheel 21.
- the wrap angle on the workpiece 25 is determined by the force F with which the Operator the belt grinder 1 against the Workpiece 25 presses, determined.
- the first fixed, the guide wheel 19th supporting arm 11 may have a fixed length or, as in the example shown in Figures 2 and 3, as Teleskoparm be performed so that its length L, i. the distance of the axis of rotation of the roller 19 to the axis of rotation A of Output roller 9 and thus the distance to the deflection roller 21 for adaptation to the diameter D of the workpiece 25 is changeable.
- the shortening takes place by the active pivoting of the pivot arm 13 with one hand of the operator counterclockwise about the axis of rotation of the guide wheel 29.
- the guide wheel 21st consequently approaches the guide wheel 19 on one circular arc, which is only marginally of a Straight line deviates.
- With increasing tilt angle of Schwenkarms 13 increases the angle between the Axle of the spring 17 and the toggle lever 33. This leads to a continuous decrease in the force of the spring 17 the pivot arm 13.
- the tensile force remains the abrasive belt 23 is substantially unchanged and thereby the contact force in the entire looping area beta almost the same, regardless of whether the Diameter D of the workpiece is large or small.
- Diameter D is the distance between the pulleys 19,21 already idling larger, accordingly is the Base distance for machining a smaller pipe (see Figure 3) already smaller before starting work.
- the Setting the distance is done before the beginning of Processing.
- the arrangement of the handle 15 on the pivotable arm 13 and also at the end of the boom 31 makes it possible to Pivoting movement of the arm 13 not only by the Relative movement of workpiece 25 to the machine. 1 but actively by the pivoting of the arm 13th to assist with the boom 31.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Gegenstand der Erfindung ist eine Bandschleifmaschine zum
Schleifen von Rohren gemäss Oberbegriff des
Patentanspruchs 1.The invention relates to a belt sander for
Grinding of tubes according to the generic term of
Das Schleifen von Rohren, insbesondere Rohren aus Rostfreistählen mit einem Tellerschleifer oder mit einer Bandschleifmaschine mit gerade verlaufenden Trumen ist möglich. Die Arbeit führt zu einem unbefriedigenden Resultat. Mit diesen Maschinen entsteht kein kreisbogenförmiger Abtrag und dadurch eine Oberfläche, deren Schleifbild unregelmässig ist. Zudem ist es nicht möglich, mit einem Schleifmittel, das in einer Ebene bewegt wird, einen sauberen Schliff auf einem rohrförmigen Körper zu erzeugen, weil stets nur ein im wesentlichen linienförmiger Kontakt besteht.The grinding of pipes, especially pipes Stainless steels with a disc sander or with a Belt grinder with straight runs is possible. The work leads to an unsatisfactory Result. With these machines, no arcuate removal and thereby a surface, whose sanding pattern is irregular. Besides, it is not possible with an abrasive that is in one plane is moved, a clean cut on a tubular Body to produce, because always only one essentially there is linear contact.
Es ist aus der US-A 3,049,841 bereits ein Rohrschleifer bekannt, welcher mit einem Schleifband arbeitet, das von einer Abtriebsrolle am Antriebsmotor angetrieben um zwei beabstandet von dieser angeordnete Rollen umläuft, welche Rollen an den Enden zweier um die Drehachse der Abtriebsrolle relativ zueinander schwenkbarer Schenkel sitzen. Zum Bearbeiten eines Rohres wird letzteres gegen das Trum des Schleifbandes zwischen den beiden relativ zueinander beweglichen Rollen geführt und dadurch teilweise umschlungen. Die Umschlingung ist umso grösser, je kleiner der Spreizwinkel der beiden Schenkel ist. Eine die beiden Schenkel spreizende Feder hält das Schleifband zu jedem Zeitpunkt gespannt.It is already known from US-A 3,049,841 a pipe grinder, which with an abrasive belt that works from a driven pulley on Drive motor driven by two spaced from this arranged rollers revolving, which rollers at the ends two relative to the axis of rotation of the driven roller relative sit each other swivel leg. To edit of a pipe becomes the latter against the strand of the Abrasive belt between the two relative to each other led mobile rollers and thereby partially entwined. The wrap is the bigger, the smaller the spread angle of the two legs is. One the two Leg spreading spring holds the sanding belt to each Tense.
Nachteilig an dieser Vorrichtung ist die mit zunehmendem Umschlingungswinkel des Schleifbandes um das zu bearbeitende Rohr zunehmende Federkraft, welche wiederum nur durch eine entsprechende Erhöhung der Anpresskraft des Bandes an das zu bearbeitende Rohr überwunden werden kann. Dies hat zur Folge, dass das Rohr einseitig mit höherem Anpressdruck vom Schleifband beaufschlagt wird und dadurch ein wiederum ungleichmässiges Schleifbild bewirkt. Im weiteren sind die Kräfte, welche notwendig sind, um eine genügende Umschlingung des zu bearbeitenden Rohres zu erhalten, höher als für die Bearbeitung notwendige Auflagekraft des Schleifbandes. Sie führen zur schnellen Ermüdung der Bedienungsperson. Die hohen Anpresskräfte, welche für die grosse Umschlingung nötig sind, bewirken andererseits einen entsprechend grossen Widerstand am Schleifband, und als Folge wird eine erhöhte Motorleistung für den Antrieb notwendig, was zu einer Erhöhung des Gesamtgewichts der Schleifmaschine führt. The disadvantage of this device is the increasing Wrap angle of the sanding belt around this working pipe increasing spring force, which in turn only by a corresponding increase in the contact pressure of the Bandes can be overcome to the pipe to be processed. This has the consequence that the tube unilaterally with higher Contact pressure is applied by the abrasive belt and thereby in turn causes uneven grinding image. in the others are the forces that are necessary to one sufficient looping of the pipe to be machined received, higher than necessary for the processing Bearing force of the sanding belt. They lead to fast Fatigue of the operator. The high contact pressure, which are necessary for the large wrap, effect on the other hand, a correspondingly large resistance on Sanding belt, and as a result, increased engine power necessary for the drive, resulting in an increase of the Total weight of the grinding machine leads.
Aufgabe der vorliegenden Erfindung ist die Schaffung einer Bandschleifmaschine, bei der mit geringem Kraftaufwand eine Umschlingung von etwa 180 Winkelgraden eines Rohres möglich ist, ohne dass dabei eine wesentlich erhöhte Antriebsleistung erforderlich ist.Object of the present invention is to provide a Belt grinding machine, with low effort a wrap of about 180 degrees of a tube possible without significantly increasing it Drive power is required.
Gelöst wird diese Aufgabe durch eine Bandschleifmaschine
gemäss den Merkmalen des Patentanspruchs 1.This problem is solved by a belt sander
according to the features of
Es gelingt durch die Anordnung des Schwenkhebels an einem feststehenden Hebel, die beim Auffahren auf das Werkstück für die Umschlingung notwendige Schleifbandlänge ohne wesentliche Erhöhung der Bandspannung zur Verfügung zu stellen. Zusätzlich unterstützt wird diese annähernd lineare Bandspannung durch die Verwendung eines Kniehebels, durch welchen die Kraft der Feder einen im wesentlichen linearen Verlauf erhält. Durch die Verstellbarkeit der Länge des ersten feststehenden Armes kann der Abstand zwischen der Rolle am Ende des schwenkbaren Hebelarms und der Rolle auf dem ersten feststellbaren Hebel an den Durchmesser des zu bearbeitenden Werkstücks angepasst werden. Die Anordnung des Handgriffs am beweglichen Arm am Ende eines Hebels erlaubt es der Bedienungsperson, den beweglichen Arm aktiv zu schwenken, ohne die Auflagekraft des Schleifbandes auf das Werkstück wesentlich zu erhöhen. It is possible by the arrangement of the pivot lever on a fixed lever when driving on the workpiece sanding belt length required for wrapping without substantial increase in belt tension available too put. In addition, this is approximately supported Linear belt tension through the use of a Knee lever, through which the force of the spring in the Maintains significant linear course. By the Adjustability of the length of the first fixed arm can the distance between the roll at the end of the pivoting lever arm and the roller on the first lockable lever to the diameter of the be adapted to machining workpiece. The order of the handle on the movable arm at the end of a lever allows the operator to actively move the movable arm to swing, without the contact force of the sanding belt on to increase the workpiece significantly.
Anhand eines illustrierten Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen
Figur 1- eine schematische Darstellung der bekannten Bandschleifmaschine mit zwei v-förmig angeordneten relativ zueinander verschwenkbaren Schwenkarmen,
- Figur 2
- eine Seitenansicht der erfindungsgemässen Schleifmaschine ausser Eingriff mit dem Werkstück und
Figur 3- eine Seitenansicht der erfindungsgemässen Schleifmaschine in Eingriff mit dem Werkstück.
- FIG. 1
- a schematic representation of the known belt grinding machine with two v-shaped pivot arms arranged pivotable relative to each other,
- FIG. 2
- a side view of the inventive grinding machine out of engagement with the workpiece and
- FIG. 3
- a side view of the inventive grinding machine in engagement with the workpiece.
In der in Figur 1 dargestellten aus dem Stand der Technik
bekannten Bandschleifmaschine 1 ist auf der rechten Seite
das Antriebsaggregat 3, z.B. ein Elektromotor oder ein
Pneumatikmotor als Rechteck dargestellt. Durch die
Zuleitung 5 wird die entsprechende Energie (Elektrizität
oder Luft) zugeführt. Mit einem Schalter 7 kann das
Antriebsaggregat 3 ein- und ausgeschaltet werden.
Am stirnseitigen Ende des Antriebsaggregates 3 sitzt eine
Abtriebsrolle 9. Im weiteren sind am Antriebsaggregat 3
zwei Schwenkarme 11 und 13 befestigt, von denen mindestens
einer um die Drehachse A in der Nähe der Abtriebsrolle 9
schwenkbar gelagert ist. Am fest mit dem Antriebsaggregat
3 verbundenen Arm 11 ist weiter ein Handgriff 15
befestigt, an dem die Bedienungsperson die Maschine 1 mit
der zweiten Hand festhält. Der Schwenkarm 13 wird durch
eine spreizend wirkende Feder 17 vom feststehenden Arm 11
weggedrückt (Pfeil P). An den Enden der beiden Arme 11,13
sind Umlenkräder 19,21 aufgesetzt, welche ein um diese
beiden Umlenkräder 19,21 und die Abtriebsrolle 9
umlaufendes endloses Schleifband 23 tragen.In the known from the prior art
At the front end of the
In der Figur 1 ist die bekannte Schleifmaschine während
des Schleifvorgangs dargestellt, d.h. zwischen den beiden
Umlenkrädern 19,21 umschlingt das Schleifband 23 ein
rohrförmiges Werkstück 25 in einem Winkel beta von weniger
als 180°. In entspanntem Zustand verläuft das Trum 26 des
Schleifbandes 23 tangential vom Umlenkrad 19 zum Umlenkrad
21. Durch den Umschlingungswinkel beta werden die beiden
Umlenkräder 19,21 gegen die Kraft der Feder 17
gegeneinandergeführt. Der Umschlingungswinkel am Werkstück
25 wird durch die Kraft F, mit welcher die
Bedienungsperson die Bandschleifmaschine 1 gegen das
Werkstück 25 presst, bestimmt.In the figure 1, the known grinding machine during
of the grinding process, i. between the two
Umlenkrädern 19,21 wraps around the grinding belt 23 a
In der erfindungsgemässen Ausgestaltung der
Bandschleifmaschine 1 gemäss den Figuren 2 und 3, in
welcher für gleiche Teile die gleichen Bezeichnungen und
Bezugszeichen wie in Figur 1 benutzt werden, sitzt am Ende
des Antriebsaggregats 3 wiederum die Abtriebsrolle 9, und
es ist der feststehende erste, das Umlenkrad 19 tragende
Arm 11 daran befestigt. Der schwenkbare Arm 13, welcher
das Umlenkrad 21 trägt, ist, im Gegensatz zum Stand der
Technik, nicht nahe am Antriebsaggregat 3, sondern am Ende
eines mit diesem ebenfalls fest verbundenen zweiten Arms
27 angelenkt und um die Drehachse des Umlenkrades 21
schwenkbar. Am Ende dieses zweiten Armes ist ein
zusätzliches Umlenkrad 29 befestigt. Der Handgriff 15 ist
in der erfindungsgemässe Ausführung am schwenkbaren Arm 13
aufgesetzt. Dieser Handgriff 15 sitzt am Ende eines
winkelig am Schwenkarm 13 befestigten Auslegers 31. Im
weiteren ist am Schwenkarm 13 ein Kniehebelarm 33
befestigt oder ausgebildet, an dessen Ende die Feder 17
angreift. Das zweite Ende der Feder 17 ist am zweiten
feststehenden Arm 27 befestigt. In einer bevorzugten
Ausgestaltung der Erfindung erstreckt sich der
Kniehebelarm 33 im wesentlichen rechtwinklig zur Achse F
der Feder 17. Der erste feststehende, das Umlenkrad 19
tragende Arm 11 kann eine feste Länge aufweisen oder, wie
im Beispiel gemäss den Figuren 2 und 3 dargestellt, als
Teleskoparm ausgeführt sein, so dass dessen Länge L, d.h.
der Abstand der Drehachse der Rolle 19 zur Drehachse A der
Abtriebsrolle 9 und damit auch der Abstand zur Umlenkrolle
21 zwecks Anpassung an den Durchmesser D des Werkstücks 25
veränderbar ist.In the inventive embodiment of
Im folgenden wird die Funktionsweise der
erfindungsgemässen Bandschleifmaschine 1 näher
beschrieben. In der Leerlaufposition gemäss Figur 2
erstreckt sich das Trum 26 tangential vom Umlenkrad 21 zum
Umlenkrad 19. Das Schleifband 23 wird in dieser Stellung
von der Feder 17 zwischen den vier Umlenkrädern 9,19,21,29
gespannt gehalten. Senkt nun die Bedienungsperson, welche
die Schleifmaschine 1 mit der einen Hand am
Antriebsaggregat 3 und mit der andern am Haltegriff 15
festhält, das Schleifband 23 von oben auf das rohrförmige
Werkstück 25, so wird das anfänglich geradlinig
verlaufende Trum 26 um das Werkstück 25 herumgeführt
(Umschlingungswinkel beta). Durch den bogenförmigen
Verlauf des Schleifbandes 23 wird der Abstand zwischen den
beiden Umlenkrädern 19 und 21 verkürzt. Die Verkürzung
erfolgt durch das aktive Schwenken des Schwenkarms 13 mit
der einen Hand der Bedienungsperson im Gegenuhrzeigersinn
um die Drehachse des Umlenkrads 29. Das Umlenkrad 21
nähert sich folglich dem Umlenkrad 19 auf einer
kreisbogenförmigen Bahn, die nur unwesentlich von einer
Geraden abweicht. Mit zunehmendem Schwenkwinkel des
Schwenkarms 13 vergrössert sich der Winkel zwischen der
Achse der Feder 17 und dem Kniehebelarm 33. Dies führt zu
einer kontinuierlichen Abnahme der Kraft der Feder 17 auf
den Schwenkarm 13. Trotz der Umlenkung des Schleifbandes
23 um annähernd 180 Winkelgrade, bleibt die Zugkraft auf
dem Schleifband 23 im wesentlichen unverändert und dadurch
die Anpresskraft im gesamten Umschlingungsbereich beta
annähernd gleich, und zwar unabhängig davon, ob der
Durchmesser D des Werkstücks gross oder klein ist. Diese
Unabhängigkeit wird dadurch ermöglicht, dass das Umlenkrad
19 am ersten feststehenden Arm 11 bezüglich dem Umlenkrad
21 einstellbar ist. Bei der Bearbeitung eines grösseren
Durchmessers D ist der Abstand zwischen den Umlenkrädern
19,21 bereits im Leerlauf grösser, entsprechend ist der
Grundabstand für die Bearbeitung eines kleineren Rohres
(siehe Figur 3) bereits vor Beginn der Arbeit kleiner. Die
Einstellung des Abstands erfolgt vor dem Beginn der
Bearbeitung.The following is the operation of the
inventive
Die Anordnung des Handgriffs 15 am schwenkbaren Arm 13 und
zudem am Ende des Auslegers 31 ermöglicht es, die
Schwenkbewegung des Arms 13 nicht nur durch die
Relativbewegung von Werkstück 25 zur Maschine 1
auszulösen, sondern aktiv durch das Schwenken des Arms 13
mit dem Ausleger 31 zu unterstützen.The arrangement of the
Claims (3)
- Belt grinding machine (1) for the grinding of tubes (25), including a drive unit (3) with a driven roller (9) for the driving of a grinding belt (23), which is intended to circulate in an endless manner, two guide wheels (19, 21), which are disposed at a spacing from the driven roller (9), one of said guide wheels is disposed at the end of a spring-loaded pivotal arm (13), which is pivotable about an axis of rotation (A), and the other guide wheel is disposed at the end of a first arm (11), which is fixedly connected to the drive unit (3), and a spring (17), which engages the pivotal arm (13) to tension the grinding belt (23) and force apart the pivotal arm (13), characterised in that an outwardly projecting boom (31) is disposed on the pivotal arm (13) with a lifting handle (15), with which the pivotal arm (13) and the guide wheel (21) can be brought forward towards the guide wheel (19), which is supported at the end of the arm (11) connected to the drive unit (3).
- Belt grinding machine according to claim 1, characterised in that the spring (17) engages a toggle arm (33), which is fixedly connected to the pivotable arm (13), wherein the toggle arm (33) lies at right angles to the spring axis before the grinding belt (23) contacts the workpiece (25), such that as the pivotal arm (13) pivots further and the workpiece (25) becomes increasingly wrapped around by the grinding belt (23), the angle between the toggle arm (33) and the spring axis increases and thereby the force of the spring (17) on the pivotal arm (13) and the tensional force onto the grinding belt is reduced.
- Belt grinding machine according to one of claims 1 or 2, characterised in that the length (L) of the fixed first arm (11) is adjustable in the direction of the guide wheel (21), which is secured to the pivotal arm (13), for setting and adjusting the distance between the two guide wheels (19, 21).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH42000 | 2000-01-03 | ||
CH42000 | 2000-01-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1112811A2 EP1112811A2 (en) | 2001-07-04 |
EP1112811A3 EP1112811A3 (en) | 2003-10-29 |
EP1112811B1 true EP1112811B1 (en) | 2005-04-27 |
Family
ID=4186608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00811127A Expired - Lifetime EP1112811B1 (en) | 2000-01-03 | 2000-11-27 | Belt grinding machine for grinding of tubing |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1112811B1 (en) |
AT (1) | ATE294047T1 (en) |
DE (1) | DE50010157D1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2560102A (en) * | 1946-10-24 | 1951-07-10 | Guinn J Edwin | Sander |
US3049841A (en) * | 1959-07-13 | 1962-08-21 | Amos E Jackson | Portable sanders |
US3566549A (en) * | 1969-01-21 | 1971-03-02 | James A Britton | Flexible all purpose drill attachment |
US4603510A (en) * | 1984-08-27 | 1986-08-05 | Rasmussen Aaron P | Multiple position belt grinder |
-
2000
- 2000-11-27 DE DE50010157T patent/DE50010157D1/en not_active Expired - Lifetime
- 2000-11-27 EP EP00811127A patent/EP1112811B1/en not_active Expired - Lifetime
- 2000-11-27 AT AT00811127T patent/ATE294047T1/en active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011002462U1 (en) | 2011-02-07 | 2011-04-28 | Metabowerke Gmbh | Pipe belt grinding unit |
DE102011076003A1 (en) | 2011-02-07 | 2012-08-09 | Metabowerke Gmbh | Pipe belt grinding unit |
WO2012107453A1 (en) | 2011-02-07 | 2012-08-16 | Metabowerke Gmbh | Pipe belt sanding unit |
DE102011117412A1 (en) * | 2011-11-02 | 2013-05-02 | Holzer Gmbh | Tube band grinding device for use in hand-held machine i.e. angle grinding machine, for surface treatment of tubular workpieces, has movably mounted guide roller receiving endless belt and mounted between two bearing rollers |
DE102012219638A1 (en) | 2012-10-26 | 2014-04-30 | Metabowerke Gmbh | Pipe tape sharpening unit for pipe tape grinder and angle sander, has one grip portion that is not reassembled with other grip portion which is located at side of lever or handle |
DE102012219638B4 (en) * | 2012-10-26 | 2014-09-11 | Metabowerke Gmbh | Pipe belt grinding unit |
WO2023106905A1 (en) * | 2022-02-07 | 2023-06-15 | Ozinskis Olegs | A machining device |
Also Published As
Publication number | Publication date |
---|---|
EP1112811A2 (en) | 2001-07-04 |
ATE294047T1 (en) | 2005-05-15 |
DE50010157D1 (en) | 2005-06-02 |
EP1112811A3 (en) | 2003-10-29 |
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