EP1375081A2 - Drill support for a transportable core bore machine - Google Patents

Drill support for a transportable core bore machine Download PDF

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Publication number
EP1375081A2
EP1375081A2 EP03405414A EP03405414A EP1375081A2 EP 1375081 A2 EP1375081 A2 EP 1375081A2 EP 03405414 A EP03405414 A EP 03405414A EP 03405414 A EP03405414 A EP 03405414A EP 1375081 A2 EP1375081 A2 EP 1375081A2
Authority
EP
European Patent Office
Prior art keywords
base plate
drill stand
stiffening
stand according
drill
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.)
Granted
Application number
EP03405414A
Other languages
German (de)
French (fr)
Other versions
EP1375081A3 (en
EP1375081B1 (en
Inventor
Olivier Ohlendorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1375081A2 publication Critical patent/EP1375081A2/en
Publication of EP1375081A3 publication Critical patent/EP1375081A3/en
Application granted granted Critical
Publication of EP1375081B1 publication Critical patent/EP1375081B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/564—Movable relative to Tool along tool-axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/91—Machine frame

Definitions

  • the invention relates to a drill stand for a portable core drilling machine.
  • a drill stand for a portable core drilling machine has one Footplate on.
  • the base plate has an elongated hole Fastening with a dowel bolt to the surface to be drilled and two bearing blocks for Definition of a column for the core drilling machine.
  • a light base plate is made of cast metal and is on the workpiece side stiffened in a plate shape over ribs so that it only lies on the edge and Take up unevenness in the surface. Due to the high mechanical static and dynamic stress can cause fatigue and fractures in the footplate come, which limits their lifespan.
  • the object of the invention is to realize a highly rigid and unbreakable drill stand for a portable core drilling machine.
  • the base plate of a drill stand points to a portable one Core drill with a surface fastener and one Column fastening means at least one stiffening chamber, which in longitudinal section to the drilling axis is closed at the edge.
  • base plate Due to the self-contained edge in longitudinal section to the drilling axis Stiffening chamber of the one-piece or multi-piece transverse to the drill axis Bolts or bonds that are rigidly assembled, base plate becomes one lightweight, rigid and strong sandwich structure.
  • the stiffening chamber of the footplate is advantageously open at least on one side, further advantageously designed without undercuts, which means that production using the casting process such as Metal die casting is possible.
  • the stiffening chamber of the footplate on two opposite sides is advantageous open design, whereby further transverse stiffening webs or Stiffening chambers can be produced symmetrically in the center.
  • Feet on the workpiece plate are advantageously arranged on the workpiece side, as a result of which a stable Support on the workpiece surface and a compensation of unevenness is achieved.
  • the footplate has at least two mutually transverse Stiffening chambers, whereby a high transverse bending stiffness is achieved.
  • the base plate advantageously consists of a light metal alloy such as one Magnesium alloy, aluminum alloy, which is light and very pressure-resistant.
  • a one-piece Base plate 2 made of a magnesium alloy, a surface fastener 3 in the form of a Elongated holes for attachment to a surface 4 serving as a workpiece with a Dowel bolts 5 and a column fastener 6 in the form of two bearing blocks for one Stand column 7 on.
  • the base plate 2 In longitudinal section to the drilling axis A, along which high feed forces F and torques M act, the base plate 2 has a plurality of closed edges Stiffening chambers 8a, which are open here on two opposite sides is trained.
  • the foot plate 2 has transverse to the stiffening chambers 8a Stiffening chambers 8b.
  • feet 9 are arranged on the workpiece.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

The drill bit rack has a footplate (2) with a surface fixing device (3) and a column fixing device (6). The footplate has at least one reinforcing chamber (8a, 8b), which is closed at the edges in longitudinal section towards the drilling axis (A).These chambers may be open on one side, optionally without undercut.

Description

Die Erfindung bezeichnet einen Bohrständer für eine transportable Kernbohrmaschine.The invention relates to a drill stand for a portable core drilling machine.

Beim Kernbohren mit hohen Drehmomenten, Vorschubkräften und Vibrationen müssen diese als Biegemomente über die Fussplatte des Bohrständers aufgenommen und in die zu bohrende Fläche abgeführt werden.When core drilling with high torques, feed forces and vibrations, they have to recorded as bending moments over the base plate of the drill stand and into the drilling surface.

Nach der DE3434261 weist ein Bohrständer für eine transportable Kernbohrmaschine eine Fussplatte auf. Nach dem Patent DE19731773C1 weist die Fussplatte ein Langloch zur Befestigung mit einem Dübelbolzen an der zu bohrenden Fläche sowie zwei Lagerblöcke zur Festlegung einer Standsäule für die Kernbohrmaschine auf.According to DE3434261, a drill stand for a portable core drilling machine has one Footplate on. According to the patent DE19731773C1, the base plate has an elongated hole Fastening with a dowel bolt to the surface to be drilled and two bearing blocks for Definition of a column for the core drilling machine.

Üblicherweise besteht eine leichte Fussplatte aus Metallguss und ist werkstückseitig tellerförmig offen über Verrippungen versteift, um nur am Rand aufzuliegen und Flächenunebenheiten in sich aufzunehmen. Durch die hohe mechanische statische und dynamische Beanspruchung kann es zu Ermüdungen und Brüchen in der Fussplatte kommen, wodurch deren Lebensdauer begrenzt wird.Usually, a light base plate is made of cast metal and is on the workpiece side stiffened in a plate shape over ribs so that it only lies on the edge and Take up unevenness in the surface. Due to the high mechanical static and dynamic stress can cause fatigue and fractures in the footplate come, which limits their lifespan.

Die Aufgabe der Erfindung besteht in der Realisierung eines hochbiegesteifen und bruchfesten Bohrständers für eine transportable Kernbohrmäschine.The object of the invention is to realize a highly rigid and unbreakable drill stand for a portable core drilling machine.

Die Aufgabe wird im Wesentlichen durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The task is essentially solved by the features of the independent claims. Advantageous further developments result from the subclaims.

Im Wesentlichen weist die Fussplatte eines Bohrständers für eine transportable Kernbohrmaschine mit einem Flächenbefestigungsmittel und einem Säulenbefestigungsmittel zumindest eine Versteifungskammer auf, welche im Längsschnitt zur Bohrachse in sich randseitig geschlossen ist.Essentially, the base plate of a drill stand points to a portable one Core drill with a surface fastener and one Column fastening means at least one stiffening chamber, which in longitudinal section to the drilling axis is closed at the edge.

Durch die im Längsschnitt zur Bohrachse in sich randseitig geschlossene Versteifungskammer der einteiligen, oder quer zur Bohrerachse mehrteiligen, durch Verschraubungen oder Verklebungen biegesteif zusammengesetzten, Fussplatte wird eine leichte, hochbiegesteife und -feste Sandwichstruktur ausgebildet.Due to the self-contained edge in longitudinal section to the drilling axis Stiffening chamber of the one-piece or multi-piece transverse to the drill axis Bolts or bonds that are rigidly assembled, base plate becomes one lightweight, rigid and strong sandwich structure.

Vorteilhaft ist die Versteifungskammer der Fussplatte zumindest an einer Seite offen, weiter vorteilhaft hinterschnittfrei ausgebildet, wodurch eine Herstellung im Gussverfahren wie Metalldruckguss möglich ist.The stiffening chamber of the footplate is advantageously open at least on one side, further advantageously designed without undercuts, which means that production using the casting process such as Metal die casting is possible.

Vorteilhaft ist die Versteifungskammer der Fussplatte an zwei gegenüberliegenden Seiten offen ausgebildet, wodurch weitere quer verlaufende Versteifungsstege oder Versteifungskammern symmetrischmittig herstellbar sind.The stiffening chamber of the footplate on two opposite sides is advantageous open design, whereby further transverse stiffening webs or Stiffening chambers can be produced symmetrically in the center.

Vorteilhaft sind an der Fussplatte werkstückseitig Füsse angeordnet, wodurch eine stabile Auflage an der Werkstückfläche sowie ein Ausgleich von Flächenunebenheiten erzielt wird.Feet on the workpiece plate are advantageously arranged on the workpiece side, as a result of which a stable Support on the workpiece surface and a compensation of unevenness is achieved.

Vorteilhaft weist die Fussplatte zumindest zwei zueinander quer verlaufende Versteifungskammern auf, wodurch eine hohe Querbiegesteifigkeit erzielt wird.Advantageously, the footplate has at least two mutually transverse Stiffening chambers, whereby a high transverse bending stiffness is achieved.

Vorteilhaft besteht die Fussplatte aus einer Leichtmetalllegierung wie einer Magnesiumlegierung, Aluminiumlegierung, welche leicht und sehr druckfest ist.The base plate advantageously consists of a light metal alloy such as one Magnesium alloy, aluminum alloy, which is light and very pressure-resistant.

Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
Eine perspektivische Darstellung einer Fussplatte eines Bohrständers für eine transportable Kernbohrmaschine; und
Fig. 2
eine Draufsicht auf die Fussplatte gemäss Pfeil II in Fig. 1.
The invention is explained in more detail with respect to an advantageous embodiment. Show it:
Fig. 1
A perspective view of a base plate of a drill stand for a portable core drilling machine; and
Fig. 2
a plan view of the base plate according to arrow II in Fig. 1st

Nach den Darstellungen weist bei einem nur teilweise dargestellten Bohrständer für eine transportable Kernbohrmaschine zum Antrieb einer Kernbohrkrone 1 eine einteilige Fussplatte 2 aus einer Magnesiumlegierung ein Flächenbefestigungsmittel 3 in Form eines Langlochs zur Befestigung an einer als Werkstück dienenden Fläche 4 mit einem Dübelbolzen 5 und ein Säulenbefestigungsmittel 6 in Form von zwei Lagerblöcken für eine Ständersäule 7 auf. Im Längsschnitt zur Bohrachse A, längs welcher hohe Vorschubkräfte F und Drehmomente M wirken, weist die Fussplatte 2 mehrere in sich randseitig geschlossene Versteifungskammern 8a auf, welche hier an zwei gegenüberliegenden Seiten offen ausgebildet ist. Die Fussplatte 2 weist zu den Versteifungskammern 8a quer verlaufende Versteifungskammern 8b auf. An der Fussplatte 2 sind werkstückseitig Füsse 9 angeordnet.According to the illustrations, in the case of a drill stand, only partially shown, for one portable core drilling machine for driving a core bit 1 a one-piece Base plate 2 made of a magnesium alloy, a surface fastener 3 in the form of a Elongated holes for attachment to a surface 4 serving as a workpiece with a Dowel bolts 5 and a column fastener 6 in the form of two bearing blocks for one Stand column 7 on. In longitudinal section to the drilling axis A, along which high feed forces F and torques M act, the base plate 2 has a plurality of closed edges Stiffening chambers 8a, which are open here on two opposite sides is trained. The foot plate 2 has transverse to the stiffening chambers 8a Stiffening chambers 8b. On the workpiece 2 feet 9 are arranged on the workpiece.

Claims (6)

Bohrständer für eine transportable Kernbohrmaschine mit einer Fussplatte (2) mit einem Flächenbefestigungsmittel (3) und einem Säulenbefestigungsmittel (6), dadurch gekennzeichnet, dass die Fussplatte (2) zumindest eine Versteifungskammer (8a, 8b) aufweist, welche im Längsschnitt zur Bohrachse (A) in sich randseitig geschlossen ist.Drill stand for a portable core drilling machine with a base plate (2) with a surface fastening means (3) and a column attachment means (6), characterized in that the base plate (2) has at least one stiffening chamber (8a, 8b) which is in longitudinal section to the drilling axis (A ) is closed at the edges. Bohrständer nach Anspruch 1, dadurch gekennzeichnet, dass die Versteifungskammer (8a, 8b) zumindest an einer Seite offen, optional hinterschnittfrei, ausgebildet ist.Drill stand according to claim 1, characterized in that the stiffening chamber (8a, 8b) is open at least on one side, optionally without an undercut. Bohrständer nach Anspruch 2, dadurch gekennzeichnet, dass die Versteifungskammer (8a, 8b) an zwei gegenüberliegenden Seiten offen ausgebildet ist.Drill stand according to claim 2, characterized in that the stiffening chamber (8a, 8b) is open on two opposite sides. Bohrständer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Fussplatte (2) zumindest zwei zueinander quer verlaufende Versteifungskammern (8a, 8b) aufweist.Drill stand according to one of claims 1 to 3, characterized in that the base plate (2) has at least two stiffening chambers (8a, 8b) running transversely to one another. Bohrständer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass an der Fussplatte (2) werkstückseitig Füsse (9) angeordnet sind.Drill stand according to one of claims 1 to 4, characterized in that feet (9) are arranged on the workpiece plate (2) on the workpiece side. Bohrständer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Fussplatte (2) aus einer Leichtmetalllegierung besteht.Drill stand according to one of claims 1 to 5, characterized in that the base plate (2) consists of a light metal alloy.
EP03405414A 2002-06-17 2003-06-10 Drill support for a transportable core bore machine Expired - Lifetime EP1375081B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10226866 2002-06-17
DE10226866A DE10226866A1 (en) 2002-06-17 2002-06-17 Drill stand for a portable core drilling machine

Publications (3)

Publication Number Publication Date
EP1375081A2 true EP1375081A2 (en) 2004-01-02
EP1375081A3 EP1375081A3 (en) 2004-06-30
EP1375081B1 EP1375081B1 (en) 2011-07-27

Family

ID=29716509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405414A Expired - Lifetime EP1375081B1 (en) 2002-06-17 2003-06-10 Drill support for a transportable core bore machine

Country Status (4)

Country Link
US (1) US6932546B2 (en)
EP (1) EP1375081B1 (en)
AT (1) ATE517721T1 (en)
DE (1) DE10226866A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920548A (en) * 1996-10-01 1999-07-06 Telefonaktiebolaget L M Ericsson Echo path delay estimation
WO2008026975A1 (en) * 2006-09-01 2008-03-06 Husqvarna Aktiebolag A drill stand for a core drilling device
EP3878599A1 (en) * 2020-03-09 2021-09-15 Hilti Aktiengesellschaft Pivotable interface and method for making a pivotable interface

Families Citing this family (8)

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US7293070B2 (en) * 2001-09-17 2007-11-06 Vignette Corporation Method and system for deploying web components between portals in a portal framework
DE102004035867B4 (en) * 2004-07-23 2007-05-16 Hilti Ag Adapter device for a drill stand system
DE102004049859B3 (en) * 2004-10-13 2006-03-16 Hilti Ag Drill stand e.g. for portable drilling machine, has slotted hole and column for mounting with assembly part defining housing in slotted hole and assembly part has opening for allowing mounting of drill such as slotted hole
US20090087272A1 (en) * 2007-09-28 2009-04-02 Hernandez Fernando M Carpenter drill plate
DE102010028302A1 (en) * 2010-04-28 2011-12-01 Hilti Aktiengesellschaft drilling
CN105980091B (en) * 2014-02-14 2019-10-08 艾沛克斯品牌公司 Apparatus for fastening and its application method
WO2019027954A1 (en) 2017-07-31 2019-02-07 Milwaukee Electric Tool Corporation Rotary power tool
CN215256059U (en) 2021-02-10 2021-12-21 米沃奇电动工具公司 Core drilling machine assembly

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920548A (en) * 1996-10-01 1999-07-06 Telefonaktiebolaget L M Ericsson Echo path delay estimation
WO2008026975A1 (en) * 2006-09-01 2008-03-06 Husqvarna Aktiebolag A drill stand for a core drilling device
EP3878599A1 (en) * 2020-03-09 2021-09-15 Hilti Aktiengesellschaft Pivotable interface and method for making a pivotable interface

Also Published As

Publication number Publication date
ATE517721T1 (en) 2011-08-15
DE10226866A1 (en) 2004-01-08
EP1375081A3 (en) 2004-06-30
US20040013484A1 (en) 2004-01-22
US6932546B2 (en) 2005-08-23
EP1375081B1 (en) 2011-07-27

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