EP1982787A1 - Segment belt for drill bit and drill bit - Google Patents
Segment belt for drill bit and drill bit Download PDFInfo
- Publication number
- EP1982787A1 EP1982787A1 EP08154483A EP08154483A EP1982787A1 EP 1982787 A1 EP1982787 A1 EP 1982787A1 EP 08154483 A EP08154483 A EP 08154483A EP 08154483 A EP08154483 A EP 08154483A EP 1982787 A1 EP1982787 A1 EP 1982787A1
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- EP
- European Patent Office
- Prior art keywords
- band
- cutting segments
- segment
- drill bit
- carrier body
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
Definitions
- the present invention relates to a segment band for a drill bit and a drill bit provided with such a segment band.
- the invention further relates to a method for producing the segment tape and to a method for producing the drill bit.
- Core bits are generally used to create core holes and have a carrier sleeve serving as a drill sleeve, which is provided at one end with a connector and at the other end with cutting segments.
- the fitting is for connection to a drill drive, which may be, for example, a portable drill or a fixed drill stand.
- the arranged on the front side of the support body cutting segments are usually made of a hard metal, are embedded in the diamond particles to have the required for drilling in, for example, concrete, masonry, asphalt or stone hardness.
- the cutting segments are made by sintering and then distributed along the circumference of the end face of the carrier body and fixed by soldering.
- Such a drill bit is from the DE 20 2004 010 916 U1 known.
- WO 2005/011917 A1 a drill bit, referred to as a cutting tool, which is provided with cutting segments which are inserted into recesses provided on the end face of the carrier body.
- the cutting segments are in this way additionally positively connected to the carrier body and can for this reason in the axial direction of the drill bit have a comparatively large amount, which allows a longer life.
- the known drill bits are associated with the disadvantage that the cutting segments are fastened individually to the carrier body.
- the cutting segments must be fixed in particular in the desired position on the front side of the carrier body and soldered individually.
- the production of the drill bit is therefore associated with a high cost.
- the EP 1 652 643 A1 a method for producing a drill bit, in which the cutting segments are attached to a band, the band is then deflected to the required length and joined together into a ring and finally the ring is fixed by soldering or welding to the front side of the carrier body.
- the belt is provided with slots into which the cutting segments are inserted so as to be supported on three sides by the belt. Subsequently, the cutting segments are connected by soldering or welding to the belt.
- the invention has for its object to provide a segment band and provided with such a segment band drill bit, which can be easily and inexpensively manufactured and allow a long service life.
- the method according to the invention for producing a segment band for a drill bit is characterized in that a band consisting of metal is inserted into a sintering tool, then a green compact formed from a sinter powder is placed in the sintering tool on the top and bottom of the band and then the Green compacts are sintered to form a cutting segment.
- the green compacts are joined together to form the cutting segment together.
- the green compacts and the band are connected to each other, so that a firm bond of cutting segment and band results, which contributes to a long service life.
- a plurality of green bodies are disposed on the top and bottom of the belt to form a plurality of spaced apart cutting segments in the sintering tool. Even if the segment band should have a large number of cutting segments, the method according to the invention ensures simple and cost-effective production. Because in contrast to the prior art according to the EP 1 652 643 A1 in that the cutting segments are individually connected to the belt after sintering, the attachment of the cutting segments to the belt takes place during sintering of the cutting segments, so that the effort required to secure the cutting segments to the belt is independent of the number of cutting segments ,
- the band is provided with at least one opening.
- the opening is advantageously made by punching or cutting.
- the band is in one piece and consequently extends through the cutting segments.
- the band may be multi-part and therefore composed of individual members.
- the links are spaced apart in the sintering tool so that there is an opening between the links.
- the green bodies are arranged so that the green bodies overlap the edge of the limbs a bit. In this way, during sintering, the green bodies are connected to one another and to the other the green bodies are connected to the limbs.
- the sintering powder is preferably a metal powder mixed with diamond particles in order to ensure a high hardness of the cutting segments.
- the segment band according to the invention has a plurality of cutting segments and a band connecting the cutting segments to each other.
- the cutting segments are spaced apart in the direction of the length of the strip. Conveniently, the cutting segments are arranged equidistantly.
- the cutting segments and the band are connected to one another by sintering, so that the segment band benefits from the method according to the invention.
- the band is provided with a plurality of openings.
- the openings are advantageously arranged between the cutting segments and preferably have a closed, in particular circular or oval, shape.
- the openings on the one hand contribute to a high flexibility of the band, which makes it possible to adapt the segment tape to the carrier body of a drill bit.
- the openings on the other hand, ensure that the cutting segments are flushed during drilling with a lubricant or coolant, such as water.
- a lubricant or coolant such as water.
- the closed shape of the openings is usually destroyed by the abrasive erosion occurring during drilling. Until then, however, the closed shape of the apertures ensures that the cutting segments are interconnected by the tape.
- the openings may be arranged in the region of the cutting segments in order to ensure a connection of the green bodies with one another during sintering.
- the openings have in this case expediently an open, in particular substantially semicircular, shape, which ensures an unhindered distribution of the sintering powder.
- the cutting segments are arranged such that the height of the cutting segments extends in the direction of the width of the band.
- the segment band is in this case the in the WO 2005/011917 A1 described advantage of a long service life.
- the height of the cutting segments is greater than the width of the belt so that a portion of the cutting segments projects beyond the belt.
- This projection can engage in the attachment of the segment band to a drill bit in recesses of the carrier body of the drill bit to achieve an additional positive connection between the segment band and the carrier body.
- the height of the cutting segments is smaller than the width of the band.
- the band forms in this way a contact surface, which contributes to a simple attachment of the segment band to the support body of a drill bit.
- the thickness of the cutting segments is greater than the thickness of the band.
- the band may have a thickness of about 0.3 mm to 0.6 mm, whereas the thickness of the cutting segments may be greater by a factor of 10, for example between about 3.0 mm and 6.0 mm.
- the band advantageously extends approximately centrically with respect to the thickness of the cutting segments. Depending on the application, however, it may be expedient that the band extends eccentrically with respect to the thickness of the cutting segments. The eccentricity is suitably between about 20% and 30% of the thickness of the cutting segment.
- the drill bit according to the invention has a tubular carrier body and the segment band according to the invention.
- the segment band is attached in the region of the end face of the carrier body at this.
- the segment band is expediently connected to the carrier body by soldering or welding.
- the drill bit of the carrier body is provided in the region of the end face with a plurality of recesses.
- the cutting segments of the segment band are used, so that there is a positive connection between the carrier body and the segment band.
- the recesses advantageously have a depth extending in the axial direction of the carrier body, which is less than half, preferably less than one third, of the height of the cutting segments.
- the carrier body in the region of the end face has a wall thickness which is smaller than the thickness of the cutting segments. In this way, the cutting segments protrude in the radial direction, depending on the application, inwardly and / or outwardly from the carrier body and thus allow a high propulsion speed.
- the support body is provided at the end remote from the end end with a connection piece to secure the drill bit to a machine or a drill stand.
- the inventive method for producing a drill bit is characterized in that the segment strip according to the invention bent according to the radius of curvature of the support body and attached in the region of the end along the circumference of the support body, in particular soldered or welded, is.
- a plurality of segment bands are arranged one behind the other in the circumferential direction of the carrier body. Such a procedure is particularly suitable for carrier bodies with a large diameter.
- the cutting segments of the segment band are used in existing in the region of the front side recesses of the carrier body in order to achieve a positive connection between the segment band and the carrier body.
- the cutting segments can be introduced into the interior of the carrier body and inserted from the inside into the recesses. Depending on the application, however, it is possible to insert the cutting segments from the outside or in the axial direction from above into the recesses.
- the contact surface can be applied both to the inner peripheral surface and to the outer peripheral surface of the carrier body.
- the voltage applied to the peripheral surface bearing surface of the segment band can be additionally or alternatively connected to the cutting segments with the carrier body.
- a tubular support body 10 which consists of metal and has an end face 11.
- the carrier body 10 is provided in the region of the end face 11 with a plurality of recesses 12.
- the carrier body 10 has a connection piece 13, which serves to connect the drill bit with a drill or a drill stand.
- a segment band 20 is further attached in the region of the end face 11, which is connected by soldering or welding to the carrier body 10.
- the segment band 20 further comprises a one-piece, consisting of metal band 30, which has a extending in the circumferential direction of the support body 10 length 33, extending in the axial direction of the support body 10 width 34 and in the radial direction of the support body 10th has extending thickness 35.
- the band 30 connects the cutting segments 21 with each other, which are arranged in the circumferential direction of the carrier body 10 and thus in the direction of the length 33 of the band 30 at a distance a from each other.
- the arrangement of the cutting segments 21 is equidistant.
- the band 30 is provided with a plurality of openings 36, 38, in particular Fig. 3 to recognize.
- the openings 36 have a closed, circular shape and are arranged between the cutting segments 21, in particular Fig. 2a to recognize.
- the openings 38 are arranged in the region of the cutting segments 21 and have an open, substantially semicircular shape, as also Fig. 2a to recognize.
- the cutting segments 21 are arranged so that the height 22 of the cutting segments 21 extends in the direction of the width 34 of the band 30.
- the height 22 of the cutting segments 21 is greater than the width 34 of the band 30, so that a supernatant results, which makes up approximately one fifth of the height 22.
- the recesses 12 have a depth extending in the axial direction of the carrier body 10, which corresponds to the size of the supernatant and thus is approximately one fifth of the height 22 of the cutting segments 21.
- the thickness 24 of the cutting segments 21 is greater than the thickness 35 of the belt 30.
- the ratio of the thickness 24 of the cutting segments 21 to the thickness 35 of the belt 30 is approximately 10: 1.
- the band 30 extends approximately centrally with respect to the thickness 24 of the cutting segments 21.
- Fig. 4 shown drill bit differs from the drill bit according to Fig. 1 in the embodiment of the segment band 20.
- the Fig. 5a and 5b indicate the segment tape 20 a plurality of equidistantly arranged cutting segments 21 having a height 22 which is smaller than the width 34 of the cutting segments 21 interconnecting belt 30.
- the band 30 forms a contact surface, the , as Fig. 4 can be seen, abuts the outer peripheral surface of the carrier body 10, depending on the application, however, can also be arranged on the inner peripheral surface of the carrier body 10.
- the band 30 is provided between the cutting segments 21 with openings 37 which have a closed, oval shape.
- the band 30 is provided in the region of the cutting segments 21 with openings 39, 40.
- the openings 39 have an open, substantially semicircular shape, whereas the extending into the contact surface openings 40 have a closed, oval shape.
- the openings 40 go into openings 41, which are greater in the direction of the length 33 of the band 30 than the openings 40 and the opening formed by the openings 40, 41 recess overall give an open shape.
- segment band 20 differs from the segment band 20 according to the Fig. 2a and 2b moreover, that the band 30 extends eccentrically with respect to the thickness 24 of the cutting segments 21.
- the eccentricity is about 25% of the thickness 24 of the cutting segments 21st
- the different embodiments of the segment band 20 have in common that the cutting segments 21 and the band 30 are interconnected by sintering.
- the band 30, which, like the Fig. 2b and 5b to identify, has a top 31 and a bottom 32, inserted into a sintering tool. Thereafter, a plurality of green compacts formed of diamond powder sintered powder are placed on the upper side 31 and the lower side 32 in the sintering tool.
- the green compacts are arranged both on the upper side 31 and on the lower side 32 of the band 30 in the region of the openings 38, 39, 40, 41, so that the green compacts pass through the openings 38, 39, 40, 41 during the subsequent sintering connect and each one green compact on the top 31 together with an associated green on the bottom 32 form a cutting segment 21.
- sintering creates a strong bond between the generated cutting segments 21 and the strip 30.
- the band 30 after being sintered extends centrically with respect to the thickness 24 of the cutting segments 21, as in FIG Fig. 2b shown. If, on the upper side 31 and the underside 32 of the band 30, green bodies of different thickness are arranged, then an eccentric course of the band 30 with respect to the thickness 24 of the cutting segments 21 results, as in FIG Fig. 5b can be seen.
- the drill bit shown is produced by bending the prefabricated segment band 20 in accordance with the radius of curvature of the carrier body 10 and fastening it in the region of the end face 11 along the circumference to the carrier body 10 by soldering or welding.
- a plurality of segment belts 20 can be arranged one behind the other in the circumferential direction of the carrier body 10.
- the protrusion formed by the cutting segments 21 engages in the recesses 12 when attaching the segment band 20 to the carrier body 10, thus ensuring an additional form fit between the segment band 20 and the carrier body 10.
- the drill bit shown is produced in the same way. Due to the contact surface formed by the band 30, which has the segment band 20 in this case, there is the possibility, in addition to solder or weld the contact surface to the support body 10 to ensure a secure attachment of the segment belt 20 to the support body 10. As in Fig. 4 can be seen, the contact surface is located on the outer peripheral surface of the support body 10 and thus covers the recesses 12. The support body 10 has in the region of the end face 11 a Wall thickness that is less than the thickness 24 of the cutting segments 21. Due to the in Fig.
- the cutting segments 21 extend in the radial direction of the support body 10 in a sufficient degree in the recess 12 and depending on the application, even from the inner peripheral surface of the support body 10th protrude.
- the above-described embodiments of the segment belt 20 and the drill bit are characterized by a simple and inexpensive production. Moreover, the production of the segmental tape 20 ensures a firm bond between the cutting segments 21 and band 30. The production of the drill bit based on the prefabrication of the segmental tape 20 enables a flexible production, which also requires a small number of molds and dies and thus over conventional production methods is particularly inexpensive. Last but not least, the alignment of the height 22 of the cutting segments 21 in the direction of the width 34 of the strip 30 contributes to a long service life and high feed rate.
Abstract
Description
Die vorliegende Erfindung betrifft ein Segmentband für eine Bohrkrone und eine mit einem solchen Segmentband versehene Bohrkrone. Die Erfindung bezieht sich ferner auf ein Verfahren zum Herstellen des Segmentbandes und auf ein Verfahren zum Herstellen der Bohrkrone.The present invention relates to a segment band for a drill bit and a drill bit provided with such a segment band. The invention further relates to a method for producing the segment tape and to a method for producing the drill bit.
Bohrkronen werden im Allgemeinen zum Erzeugen von Kernbohrungen eingesetzt und weisen eine als Trägerkörper dienende Bohrhülse auf, die an einem Ende mit einem Anschlussstück und am anderen Ende mit Schneidsegmenten versehen ist. Das Anschlussstück dient zum Verbinden mit einem Bohrantrieb, bei dem es sich um beispielsweise eine tragbare Bohrmaschine oder einen feststehenden Bohrständer handeln kann. Die an der Stirnseite des Trägerkörpers angeordneten Schneidsegmente bestehen in der Regel aus einem Hartmetall, in das Diamantpartikel eingebettet sind, um die für ein Bohren in beispielsweise Beton, Mauerwerk, Asphalt oder Gestein erforderliche Härte zu haben. Die Schneidsegmente werden durch Sintern gefertigt und danach an der Stirnseite des Trägerkörpers entlang dem Umfang verteilt und durch Löten befestigt. Eine solche Bohrkrone ist aus der
Darüber hinaus beschreibt die
Die bekannten Bohrkronen sind mit dem Nachteil verbunden, dass die Schneidsegmente einzeln an dem Trägerkörper befestigt werden. Die Schneidsegmente müssen insbesondere in der gewünschten Position an der Stirnseite des Trägerkörpers fixiert und einzeln angelötet werden. Die Herstellung der Bohrkrone ist daher mit einem hohen Aufwand verbunden.The known drill bits are associated with the disadvantage that the cutting segments are fastened individually to the carrier body. The cutting segments must be fixed in particular in the desired position on the front side of the carrier body and soldered individually. The production of the drill bit is therefore associated with a high cost.
Um den Herstellungsaufwand zu reduzieren, ist aus der
Wenngleich das bekannte Verfahren die Vorfertigung eines durch die Schneidsegmente gebildeten Segmentbandes ermöglicht und damit die Befestigung der Schneidsegmente an dem Trägerkörper vereinfacht, hat sich die Befestigung der Schneidsegmente an dem Band als aufwendig erwiesen.Although the known method enables the prefabrication of a segment band formed by the cutting segments and thus simplifies the attachment of the cutting segments to the carrier body, the attachment of the cutting segments to the band has proven to be expensive.
Der Erfindung liegt die Aufgabe zugrunde, ein Segmentband und eine mit einem solchen Segmentband versehene Bohrkrone zu schaffen, die sich einfach und kostengünstig herstellen lassen und eine lange Standzeit ermöglichen.The invention has for its object to provide a segment band and provided with such a segment band drill bit, which can be easily and inexpensively manufactured and allow a long service life.
Diese Aufgabe wird durch ein Verfahren zum Herstellen eines Segmentbandes für eine Bohrkrone gemäß Anspruch 1, ein Segmentband für eine Bohrkrone gemäß Anspruch 8, eine Bohrkrone gemäß Anspruch 18 und ein Verfahren zum Herstellen einer Bohrkrone gemäß Anspruch 24 gelöst. Bevorzugte Ausgestaltungen der Erfindung werden in den Ansprüchen 2 bis 7, 9 bis 17, 19 bis 23 und 25 bis 29 definiert.This object is achieved by a method for producing a segment tape for a drill bit according to claim 1, a segment tape for a drill bit according to claim 8, a drill bit according to claim 18 and a method for producing a drill bit according to
Das erfindungsgemäße Verfahren zum Herstellen eines Segmentbandes für eine Bohrkrone zeichnet sich dadurch aus, dass ein aus Metall bestehendes Band in ein Sinterwerkzeug eingelegt wird, anschließend auf der Oberseite und der Unterseite des Bandes ein aus einem Sinterpulver geformter Grünling in dem Sinterwerkzeug angeordnet wird und sodann die Grünlinge zur Bildung eines Schneidsegments gesintert werden. Während des Sinterns werden zum einen die Grünlinge miteinander verbunden, um gemeinsam das Schneidsegment zu bilden. Zum anderen werden während des Sinterns die Grünlinge und das Band miteinander verbunden, so dass sich ein fester Verbund aus Schneidsegment und Band ergibt, der zu einer langen Standzeit beiträgt.The method according to the invention for producing a segment band for a drill bit is characterized in that a band consisting of metal is inserted into a sintering tool, then a green compact formed from a sinter powder is placed in the sintering tool on the top and bottom of the band and then the Green compacts are sintered to form a cutting segment. During sintering, on the one hand, the green compacts are joined together to form the cutting segment together. On the other hand, during sintering, the green compacts and the band are connected to each other, so that a firm bond of cutting segment and band results, which contributes to a long service life.
Bevorzugt werden eine Vielzahl an Grünlingen auf der Oberseite und der Unterseite des Bandes zur Bildung einer Vielzahl an in einem Abstand voneinander angeordneten Schneidsegmenten in dem Sinterwerkzeug angeordnet. Selbst dann, wenn das Segmentband über eine große Anzahl an Schneidsegmenten verfügen soll, gewährleistet das erfindungsgemäße Verfahren eine einfache und kostengünstige Herstellung. Denn im Unterschied zum Stand der Technik gemäß der
In einer bevorzugten Ausgestaltung des Verfahrens wird das Band mit wenigstens einer Öffnung versehen. Die Öffnung wird zweckmäßigerweise durch Stanzen oder Schneiden gefertigt.In a preferred embodiment of the method, the band is provided with at least one opening. The opening is advantageously made by punching or cutting.
In einer weiteren bevorzugten Ausgestaltung des Verfahrens ist das Band einteilig und erstreckt sich demzufolge durch die Schneidsegmente hindurch. In diesem Fall hat es sich als vorteilhaft erwiesen, die Grünlinge auf der Oberseite und der Unterseite des Bandes im Bereich der Öffnung anzuordnen, so dass beim Sintern die Grünlinge durch die Öffnung hindurch miteinander verbunden werden.In a further preferred embodiment of the method, the band is in one piece and consequently extends through the cutting segments. In this case, it has proved to be advantageous to arrange the green compacts on the top side and the underside of the band in the region of the opening, so that during sintering the green compacts are connected to one another through the opening.
In einer alternativen Ausgestaltung kann das Band mehrteilig sein und sich demzufolge aus einzelnen Gliedern zusammensetzen. Die Glieder werden in dem Sinterwerkzeug in einem Abstand voneinander angeordnet, so dass sich zwischen den Gliedern eine Öffnung ergibt. Im Bereich dieser Öffnung werden die Grünlinge derart angeordnet, dass die Grünlinge den Rand der Glieder ein Stück weit überlappen. Auf diese Weise werden beim Sintern zum einen die Grünlinge miteinander und zum anderen die Grünlinge mit den Gliedern verbunden.In an alternative embodiment, the band may be multi-part and therefore composed of individual members. The links are spaced apart in the sintering tool so that there is an opening between the links. In the area of this opening, the green bodies are arranged so that the green bodies overlap the edge of the limbs a bit. In this way, during sintering, the green bodies are connected to one another and to the other the green bodies are connected to the limbs.
Bevorzugt ist das Sinterpulver ein mit Diamantpartikeln vermischtes Metallpulver, um eine hohe Härte der Schneidsegmente zu gewährleisten.The sintering powder is preferably a metal powder mixed with diamond particles in order to ensure a high hardness of the cutting segments.
Das erfindungsgemäße Segmentband weist eine Vielzahl an Schneidsegmenten und ein die Schneidsegmente miteinander verbindendes Band auf. Die Schneidsegmente sind in Richtung der Länge des Bandes in einem Abstand voneinander angeordnet. Zweckmäßigerweise sind die Schneidsegmente äquidistant angeordnet. Die Schneidsegmente und das Band sind durch Sintern miteinander verbunden, so dass dem Segmentband die Vorteile des erfindungsgemäßen Verfahrens zuteil werden.The segment band according to the invention has a plurality of cutting segments and a band connecting the cutting segments to each other. The cutting segments are spaced apart in the direction of the length of the strip. Conveniently, the cutting segments are arranged equidistantly. The cutting segments and the band are connected to one another by sintering, so that the segment band benefits from the method according to the invention.
Bevorzugt ist das Band mit einer Vielzahl an Öffnungen versehen. Die Öffnungen sind vorteilhafterweise zwischen den Schneidsegmenten angeordnet und haben vorzugsweise eine geschlossene, insbesondere kreisförmige oder ovale, Form. Die Öffnungen tragen zum einen zu einer hohen Biegsamkeit des Bandes bei, die es ermöglicht, das Segmentband an den Trägerkörper einer Bohrkrone anzuschmiegen. Die Öffnungen gewährleisten zum anderen eine Umspülung der Schneidsegmente während des Bohrens mit einem Schmier- oder Kühlmittel, wie zum Beispiel Wasser. Die geschlossene Form der Öffnungen wird zwar in der Regel durch den beim Bohren auftretenden abrasiven Abtrag zerstört. Bis dahin gewährleistet die geschlossene Form der Öffnungen aber, dass die Schneidsegmente durch das Band miteinander verbunden sind.Preferably, the band is provided with a plurality of openings. The openings are advantageously arranged between the cutting segments and preferably have a closed, in particular circular or oval, shape. The openings on the one hand contribute to a high flexibility of the band, which makes it possible to adapt the segment tape to the carrier body of a drill bit. The openings, on the other hand, ensure that the cutting segments are flushed during drilling with a lubricant or coolant, such as water. Although the closed shape of the openings is usually destroyed by the abrasive erosion occurring during drilling. Until then, however, the closed shape of the apertures ensures that the cutting segments are interconnected by the tape.
Alternativ oder zusätzlich können die Öffnungen im Bereich der Schneidsegmente angeordnet sein, um beim Sintern eine Verbindung der Grünlinge miteinander sicherzustellen. Die Öffnungen haben in diesem Fall zweckmäßigerweise eine offene, insbesondere im Wesentlichen halbkreisförmige, Form, die eine ungehinderte Verteilung des Sinterpulvers gewährleistet.Alternatively or additionally, the openings may be arranged in the region of the cutting segments in order to ensure a connection of the green bodies with one another during sintering. The openings have in this case expediently an open, in particular substantially semicircular, shape, which ensures an unhindered distribution of the sintering powder.
In einer bevorzugten Ausgestaltung des Segmentbands sind die Schneidsegmente so angeordnet, dass sich die Höhe der Schneidsegmente in Richtung der Breite des Bandes erstreckt. Dem Segmentband wird in diesem Fall der in der
Bevorzugt ist die Höhe der Schneidsegmente größer als die Breite des Bandes, so dass ein Abschnitt der Schneidsegmente über das Band übersteht. Dieser Überstand kann bei der Befestigung des Segmentbandes an einer Bohrkrone in Aussparungen des Trägerkörpers der Bohrkrone eingreifen, um einen zusätzlichen Formschluss zwischen Segmentband und Trägerkörper zu erzielen.Preferably, the height of the cutting segments is greater than the width of the belt so that a portion of the cutting segments projects beyond the belt. This projection can engage in the attachment of the segment band to a drill bit in recesses of the carrier body of the drill bit to achieve an additional positive connection between the segment band and the carrier body.
In einer alternativen Ausgestaltung des Segmentbandes ist die Höhe der Schneidsegmente jedoch kleiner als die Breite des Bandes. Das Band bildet auf diese Weise eine Anlagefläche, die zu einer einfachen Befestigung des Segmentbandes an dem Trägerkörper einer Bohrkrone beiträgt.In an alternative embodiment of the segment band, however, the height of the cutting segments is smaller than the width of the band. The band forms in this way a contact surface, which contributes to a simple attachment of the segment band to the support body of a drill bit.
In einer weiteren bevorzugten Ausgestaltung des Segmentbandes ist die Dicke der Schneidsegmente größer als die Dicke des Bandes. Das Band kann beispielsweise eine Dicke von ca. 0,3 mm bis 0,6 mm haben, wohingegen die Dicke der Schneidsegmente um einen Faktor 10 größer sein und beispielsweise zwischen ca. 3,0 mm und 6,0 mm betragen kann. Das Band erstreckt sich in Bezug auf die Dicke der Schneidsegmente vorteilhafterweise annähernd zentrisch. Je nach Anwendungsfall kann es jedoch zweckmäßig sein, dass sich das Band in Bezug auf die Dicke der Schneidsegmente exzentrisch erstreckt. Die Exzentrizität beträgt zweckmäßigerweise zwischen ca. 20 % und 30 % der Dicke des Schneidsegments.In a further preferred embodiment of the segment band, the thickness of the cutting segments is greater than the thickness of the band. For example, the band may have a thickness of about 0.3 mm to 0.6 mm, whereas the thickness of the cutting segments may be greater by a factor of 10, for example between about 3.0 mm and 6.0 mm. The band advantageously extends approximately centrically with respect to the thickness of the cutting segments. Depending on the application, however, it may be expedient that the band extends eccentrically with respect to the thickness of the cutting segments. The eccentricity is suitably between about 20% and 30% of the thickness of the cutting segment.
Die erfindungsgemäße Bohrkrone weist einen rohrförmigen Trägerkörper und das erfindungsgemäße Segmentband auf. Das Segmentband ist im Bereich der Stirnseite des Trägerkörpers an diesem befestigt. Das Segmentband ist zweckmäßigerweise durch Löten oder Schweißen mit dem Trägerkörper verbunden.The drill bit according to the invention has a tubular carrier body and the segment band according to the invention. The segment band is attached in the region of the end face of the carrier body at this. The segment band is expediently connected to the carrier body by soldering or welding.
In einer bevorzugten Ausgestaltung der Bohrkrone ist der Trägerkörper im Bereich der Stirnseite mit einer Vielzahl an Aussparungen versehen. In die Aussparungen sind die Schneidsegmente des Segmentbandes eingesetzt, so dass sich ein Formschluss zwischen dem Trägerkörper und dem Segmentband ergibt. Die Aussparungen haben vorteilhafterweise eine sich in der axialen Richtung des Trägerkörpers erstreckende Tiefe, die weniger als die Hälfte, vorzugsweise weniger als ein Drittel, der Höhe der Schneidsegmente beträgt.In a preferred embodiment of the drill bit of the carrier body is provided in the region of the end face with a plurality of recesses. In the recesses, the cutting segments of the segment band are used, so that there is a positive connection between the carrier body and the segment band. The recesses advantageously have a depth extending in the axial direction of the carrier body, which is less than half, preferably less than one third, of the height of the cutting segments.
In einer weiteren bevorzugen Ausgestaltung der Bohrkrone hat der Trägerkörper im Bereich der Stirnseite eine Wandstärke, die geringer ist als die Dicke der Schneidsegmente. Auf diese Weise ragen die Schneidsegmente in radialer Richtung je nach Anwendungsfall nach innen und/oder nach außen aus dem Trägerkörper hervor und ermöglichen damit eine große Vortriebsgeschwindigkeit.In a further preferred embodiment of the drill bit, the carrier body in the region of the end face has a wall thickness which is smaller than the thickness of the cutting segments. In this way, the cutting segments protrude in the radial direction, depending on the application, inwardly and / or outwardly from the carrier body and thus allow a high propulsion speed.
Zweckmäßigerweise ist der Trägerkörper an dem der Stirnseite abgewandten Ende mit einem Anschlussstück versehen, um die Bohrkrone an einer Maschine oder einem Bohrständer zu befestigen.Conveniently, the support body is provided at the end remote from the end end with a connection piece to secure the drill bit to a machine or a drill stand.
Das erfindungsgemäße Verfahren zum Herstellen einer Bohrkrone zeichnet sich dadurch aus, dass das erfindungsgemäße Segmentband entsprechend dem Krümmungsradius des Trägerkörpers gebogen und im Bereich der Stirnseite entlang dem Umfang an dem Trägerkörper befestigt, insbesondere angelötet oder angeschweißt, wird.The inventive method for producing a drill bit is characterized in that the segment strip according to the invention bent according to the radius of curvature of the support body and attached in the region of the end along the circumference of the support body, in particular soldered or welded, is.
In einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens werden mehrere Segmentbänder in Umfangsrichtung des Trägerkörpers hintereinander angeordnet. Eine solche Verfahrensführung bietet sich vor allem bei Trägerkörpern mit einem großen Durchmesser an.In a preferred embodiment of the method according to the invention, a plurality of segment bands are arranged one behind the other in the circumferential direction of the carrier body. Such a procedure is particularly suitable for carrier bodies with a large diameter.
Bevorzugt werden die Schneidsegmente des Segmentbandes in im Bereich der Stirnseite vorhandene Aussparungen des Trägerkörpers eingesetzt, um einen Formschluss zwischen dem Segmentband und dem Trägerkörper zu erreichen. Die Schneidsegmente können dabei in das Innere des Trägerkörpers eingeführt und von innen in die Aussparungen eingesetzt werden. Je nach Anwendungsfall ist es jedoch möglich, die Schneidsegmente auch von außen oder in axialer Richtung von oben in die Aussparungen einzusetzen.Preferably, the cutting segments of the segment band are used in existing in the region of the front side recesses of the carrier body in order to achieve a positive connection between the segment band and the carrier body. The cutting segments can be introduced into the interior of the carrier body and inserted from the inside into the recesses. Depending on the application, however, it is possible to insert the cutting segments from the outside or in the axial direction from above into the recesses.
Weist das Segmentband eine Anlagefläche auf, die durch das die Schneidsegmente miteinander verbindende Band erzeugt wird, dann kann die Anlagefläche sowohl an die innere Umfangsfläche als auch an die äußere Umfangsfläche des Trägerkörpers angelegt werden. Die an der Umfangsfläche anliegende Anlagefläche des Segmentbandes kann zusätzlich oder alternativ zu den Schneidsegmenten mit dem Trägerkörper verbunden werden.If the segment band has a contact surface which is generated by the band connecting the cutting segments to one another, then the contact surface can be applied both to the inner peripheral surface and to the outer peripheral surface of the carrier body. The voltage applied to the peripheral surface bearing surface of the segment band can be additionally or alternatively connected to the cutting segments with the carrier body.
Einzelheiten und weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele. In den die Ausführungsbeispiele lediglich schematisch darstellenden Zeichnungen veranschaulichen im Einzelnen:
- Fig. 1
- eine Seitenansicht einer Bohrkrone in einer ersten Ausführungsform;
- Fig. 2a
- eine Seitenansicht eines Segmentbandes der Bohrkrone gemäß
Fig. 1 , das eine Vielzahl an Schneidsegmenten und ein diese miteinander verbindendes Band aufweist; - Fig. 2b
- eine Draufsicht auf das Segmentband gemäß
Fig. 2a ; - Fig.3
- eine Seitenansicht des Bandes des Segmentbandes gemäß
Fig. 2a ; - Fig. 4
- eine Seitenansicht einer Bohrkrone in einer zweiten Ausführungsform;
- Fig. 5a
- eine Seitenansicht eines Segmentbandes der Bohrkrone gemäß
Fig. 4 , das eine Vielzahl an Schneidsegmenten und ein die Schneidsegmente miteinander verbindendes Band aufweist; - Fig. 5b
- eine Draufsicht auf das Segmentband gemäß
Fig. 5a ; - Fig. 6
- eine Seitenansicht des Bandes des Segmentbandes gemäß
Fig. 5a und - Fig.7
- eine Seitenansicht eines Bandes in einer weiteren Ausführungsform.
- Fig. 1
- a side view of a drill bit in a first embodiment;
- Fig. 2a
- a side view of a segment band of the drill bit according to
Fig. 1 having a plurality of cutting segments and a band connecting them together; - Fig. 2b
- a plan view of the segment tape according to
Fig. 2a ; - Figure 3
- a side view of the band of the segment band according to
Fig. 2a ; - Fig. 4
- a side view of a drill bit in a second embodiment;
- Fig. 5a
- a side view of a segment band of the drill bit according to
Fig. 4 having a plurality of cutting segments and a band connecting the cutting segments together; - Fig. 5b
- a plan view of the segment tape according to
Fig. 5a ; - Fig. 6
- a side view of the band of the segment band according to
Fig. 5a and - Figure 7
- a side view of a band in another embodiment.
Die in
Wie insbesondere die
Das Band 30 ist mit einer Vielzahl an Öffnungen 36, 38 versehen, wie insbesondere
Die Schneidsegmente 21 sind so angeordnet, dass sich die Höhe 22 der Schneidsegmente 21 in Richtung der Breite 34 des Bandes 30 erstreckt. Die Höhe 22 der Schneidsegmente 21 ist größer als die Breite 34 des Bandes 30, so dass sich ein Überstand ergibt, der annähernd ein Fünftel der Höhe 22 ausmacht. Die Aussparungen 12 haben eine sich in der axialen Richtung des Trägerkörpers 10 erstreckende Tiefe, die der Größe des Überstands entspricht und damit ca. ein Fünftel der Höhe 22 der Schneidsegmente 21 beträgt.The cutting
Wie
Die in
Das in den
Das in den
Die unterschiedlichen Ausführungsformen des Segmentbandes 20 haben gemein, dass die Schneidsegmente 21 und das Band 30 durch Sintern miteinander verbunden werden. Zu diesem Zweck wird das Band 30, das, wie die
Werden auf der Oberseite 31 und der Unterseite 32 des Bandes 30 Grünlinge angeordnet, welche die gleiche Dicke haben, dann erstreckt sich das Band 30 nach dem Sintern in Bezug auf die Dicke 24 der Schneidsegmente 21 zentrisch, wie in
Die in
Die in
Die zuvor beschriebenen Ausführungsbeispiele des Segmentbandes 20 und der Bohrkrone zeichnen sich durch eine einfache und kostengünstige Herstellung aus. Die Herstellung des Segmentbandes 20 gewährleistet darüber hinaus einen festen Verbund von Schneidsegmenten 21 und Band 30. Die auf der Vorfertigung des Segmentbandes 20 beruhende Herstellung der Bohrkrone ermöglicht eine flexible Produktion, die überdies mit einer geringen Anzahl an Formen und Matrizen auskommt und damit gegenüber herkömmlichen Herstellungsverfahren besonders kostengünstig ist. Nicht zuletzt trägt die Ausrichtung der Höhe 22 der Schneidsegmente 21 in Richtung der Breite 34 des Bandes 30 zu einer langen Standzeit und großen Vorschubgeschwindigkeit bei.The above-described embodiments of the
- 1010
- Trägerkörpersupport body
- 1111
- Stirnseitefront
- 1212
- Aussparungrecess
- 1313
- Anschlussstückconnector
- 2020
- Segmentbandsegment band
- 2121
- Schneidsegmentcutting segment
- 2222
- Höheheight
- 2323
- Breitewidth
- 2424
- Dickethickness
- 3030
- Bandtape
- 3131
- Oberseitetop
- 3232
- Unterseitebottom
- 3333
- Längelength
- 3434
- Breitewidth
- 3535
- Dickethickness
- 3636
- Öffnungopening
- 3737
- Öffnungopening
- 3838
- Öffnungopening
- 3939
- Öffnungopening
- 4040
- Öffnungopening
- 4141
- Öffnungopening
- aa
- Abstanddistance
Claims (29)
einer Vielzahl an Schneidsegmenten (21), die eine Höhe (22), eine Breite (23) und eine Dicke (24) haben, und
einem Band (30), das eine Länge (33), eine Breite (34) und eine Dicke (35) hat und das die Schneidsegmente (21) miteinander verbindet;
wobei die Schneidsegmente (21) in Richtung der Länge (33) des Bandes (30) in einem Abstand (a) voneinander angeordnet sind und
wobei die Schneidsegmente (21) aus Grünlingen gesintert sind, die während des Sinterns mit dem Band (30) verbunden werden.Segment tape for a drill bit with
a plurality of cutting segments (21) having a height (22), a width (23) and a thickness (24), and
a band (30) having a length (33), a width (34) and a thickness (35) and connecting the cutting segments (21) together;
wherein the cutting segments (21) are arranged in the direction of the length (33) of the band (30) at a distance (a) from each other and
wherein the cutting segments (21) are sintered from green compacts which are bonded to the tape (30) during sintering.
einem rohrförmigen Trägerkörper (10), der eine Stirnseite (11) hat, und
wenigstens einem Segmentband (20) nach einem der Ansprüche 8 bis 17;
wobei das Segmentband (20) im Bereich der Stirnseite (11) an dem Trägerkörper (10) befestigt ist.Drill bit with
a tubular support body (10) having an end face (11), and
at least one segment band (20) according to one of claims 8 to 17;
wherein the segment band (20) in the region of the end face (11) on the support body (10) is attached.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007018791A DE102007018791B3 (en) | 2007-04-20 | 2007-04-20 | Making strip connecting cutting segments, used to manufacture core-drilling bit, lays metal strip in sintering mold, adds green molded cutters and completes sintering and bonding in single firing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1982787A1 true EP1982787A1 (en) | 2008-10-22 |
EP1982787B1 EP1982787B1 (en) | 2009-12-30 |
Family
ID=39597818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08154483A Not-in-force EP1982787B1 (en) | 2007-04-20 | 2008-04-14 | Segment belt for drill bit and drill bit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1982787B1 (en) |
AT (1) | ATE453480T1 (en) |
DE (2) | DE102007018791B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107905499A (en) * | 2017-11-20 | 2018-04-13 | 徐州新南湖科技有限公司 | A kind of construction cement wall hole processing unit |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02274416A (en) * | 1989-04-14 | 1990-11-08 | Sanwa Daiyamondo Kogyo Kk | Hard material cutting band saw and manufacture thereof |
JPH02274418A (en) * | 1989-04-14 | 1990-11-08 | Sanwa Daiyamondo Kogyo Kk | Manufacture for hard material cutting band saw |
US6562288B2 (en) * | 2000-11-13 | 2003-05-13 | Rin Soon Park | Method and apparatus for manufacturing cutting blades, and a cutting blade manufactured by the same |
WO2005011917A1 (en) | 2003-07-25 | 2005-02-10 | Johann Gleixner | Parting-off grinder for material machining with material removal |
DE202004010916U1 (en) | 2004-07-12 | 2005-11-24 | Diewe Diamantwerkzeuge Gmbh | Drill bit has body which in head or cutting region has in longitudinal or circumferential direction toothed profile with apex line which in side view has height-variable course, especially curvature |
US20050279533A1 (en) * | 2004-06-22 | 2005-12-22 | Vincent Corica | Apparatus and method for securing diamond segment to rotating tool |
EP1652643A1 (en) | 2004-10-27 | 2006-05-03 | Steffen Hoffmann-Blecker | Core drill and method for manufacturing the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4436915A1 (en) * | 1994-10-15 | 1996-04-18 | Hilti Ag | Hollow core bit with a hollow cylindrical carrier body |
US5868125A (en) * | 1996-11-21 | 1999-02-09 | Norton Company | Crenelated abrasive tool |
-
2007
- 2007-04-20 DE DE102007018791A patent/DE102007018791B3/en not_active Expired - Fee Related
-
2008
- 2008-04-14 EP EP08154483A patent/EP1982787B1/en not_active Not-in-force
- 2008-04-14 AT AT08154483T patent/ATE453480T1/en active
- 2008-04-14 DE DE502008000277T patent/DE502008000277D1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02274416A (en) * | 1989-04-14 | 1990-11-08 | Sanwa Daiyamondo Kogyo Kk | Hard material cutting band saw and manufacture thereof |
JPH02274418A (en) * | 1989-04-14 | 1990-11-08 | Sanwa Daiyamondo Kogyo Kk | Manufacture for hard material cutting band saw |
US6562288B2 (en) * | 2000-11-13 | 2003-05-13 | Rin Soon Park | Method and apparatus for manufacturing cutting blades, and a cutting blade manufactured by the same |
WO2005011917A1 (en) | 2003-07-25 | 2005-02-10 | Johann Gleixner | Parting-off grinder for material machining with material removal |
US20050279533A1 (en) * | 2004-06-22 | 2005-12-22 | Vincent Corica | Apparatus and method for securing diamond segment to rotating tool |
DE202004010916U1 (en) | 2004-07-12 | 2005-11-24 | Diewe Diamantwerkzeuge Gmbh | Drill bit has body which in head or cutting region has in longitudinal or circumferential direction toothed profile with apex line which in side view has height-variable course, especially curvature |
EP1652643A1 (en) | 2004-10-27 | 2006-05-03 | Steffen Hoffmann-Blecker | Core drill and method for manufacturing the same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107905499A (en) * | 2017-11-20 | 2018-04-13 | 徐州新南湖科技有限公司 | A kind of construction cement wall hole processing unit |
CN107905499B (en) * | 2017-11-20 | 2019-07-30 | 浙江荣佳建筑工程有限公司 | A kind of construction cement wall hole processing unit |
Also Published As
Publication number | Publication date |
---|---|
EP1982787B1 (en) | 2009-12-30 |
ATE453480T1 (en) | 2010-01-15 |
DE502008000277D1 (en) | 2010-02-11 |
DE102007018791B3 (en) | 2008-08-14 |
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