EP0080093B1 - Support for drills for sharpening cutting edges - Google Patents

Support for drills for sharpening cutting edges Download PDF

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Publication number
EP0080093B1
EP0080093B1 EP82110241A EP82110241A EP0080093B1 EP 0080093 B1 EP0080093 B1 EP 0080093B1 EP 82110241 A EP82110241 A EP 82110241A EP 82110241 A EP82110241 A EP 82110241A EP 0080093 B1 EP0080093 B1 EP 0080093B1
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EP
European Patent Office
Prior art keywords
drill
prisms
prismatic
prismatic members
pivot pin
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
Application number
EP82110241A
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German (de)
French (fr)
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EP0080093A3 (en
EP0080093A2 (en
Inventor
Reinhold Reiling
Karl Reiling
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82110241T priority Critical patent/ATE24856T1/en
Publication of EP0080093A2 publication Critical patent/EP0080093A2/en
Publication of EP0080093A3 publication Critical patent/EP0080093A3/en
Application granted granted Critical
Publication of EP0080093B1 publication Critical patent/EP0080093B1/en
Expired legal-status Critical Current

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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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/247—Supports for drills
    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills

Definitions

  • the invention relates to a holding device for drills for grinding the cutting edges consisting of a base plate which carries a stand piece with a right-angled axle bolt at the upper end for attaching a clamping device for the drill to be ground.
  • Such devices for grinding the cutting of twist drills according to DE-C-28 33 420 consisting of a base plate on which a slide is guided horizontally displaceably by means of a threaded spindle, which carries a stand which is perpendicular to the slide Axis is pivotable and carries at its upper end a horizontal axis on which a clamping device for the drill bit to be ground is pivotally supported, a vertical threaded bore being arranged in the slide, in which a tensioning screw penetrating an elongated hole in a base plate of the stand designed as an angle piece is screwed, which serves to fix the position of the stand and that an upstanding leg of the L-shaped base plate can have a clamping eye for receiving the bearing neck of a hand drill.
  • the clamping device is further developed so that it is formed by two jaws which intermesh with their teeth in a comb-like manner and can be moved relative to one another by means of a clamping screw, and that an approximately wedge-shaped, approach tapering against the tip of the drill to be clamped and in each case a hole is provided through which the clamping jaw on the stand can be put onto the horizontal axle bolt, the projection of the clamping jaws having prismatic surfaces and the clamping jaws of the clamping device being displaceable with respect to one another by means of transverse guide pins of a lateral retaining strip and the clamping screw is screw-mounted in the retaining bar.
  • a holding piece is known as a U-shaped guide piece encompassing the prisms with the legs, the outer prism being fixed in its position between the ends of the legs and the inner prism by means Pressure screw for clamping the drill is displaceable and the drill can be received in two opposite, angular longitudinal grooves between the prisms. All in all, this is a complex drill maintenance.
  • the object of the present invention is to provide a simpler and cheaper design for grinding drills (twist drills), especially for do-it-yourselfers, which also give perfect accuracy, which is also suitable for a wide range of different drill strengths.
  • the device is characterized in that the stand piece has a feed screw as a stop for the prisms parallel to the axle bolt, which also makes it easy to achieve a high degree of grinding symmetry when repositioning the holding piece with prisms for the drill receptacle for regrinding the drill tip on both sides results, and furthermore, that the prisms have different longitudinal grooves on both sides in the form of angular incisions for receiving different drill diameters, so that drills of different diameter sizes can be regrind with the same device.
  • a home improvement machine 1 is equipped with a grinding wheel 2 and fastened to the table 4 by means of a holder 3.
  • the clamping device 5 according to the invention is arranged, the base plate 6 of which is also to be held on the table 4 by means of a tensioner 7.
  • the stand piece 8 is arranged to be rotatable, height-adjustable and lockable perpendicularly thereto by means of screw axis 9 and is used with a right-angled axis pin 10 for attaching the clamping device 5.
  • This clamping device for the drill 11 to be ground consists of the U-shaped guide piece 12, at its leg ends 13 a transverse outer prism 14 with U-grooves 15 on both sides can be inserted and fixed by means of screws 16 and a second transverse inner prism 17 with U-grooves 18 on both sides inside the U-shaped guide piece 12 at a distance from the first prism a is adjustable.
  • a pressure screw 19 on the cross leg of the guide piece 12 is used when the drill 11 is inserted between the prisms 14 and 17 to fix it in the angular longitudinal grooves 20 and 21.
  • These longitudinal grooves 20 and 21 are of different sizes and can therefore be used for different drill diameters.
  • the blind holes 22, 23 on the end faces 24, 25 of the prisms 14 and 17 are used to reposition the clamping device 5 in connection with the axle bolts 10.
  • the end faces 24, 25 are arranged here at right angles to the longitudinal groove axis 20 on the prisms 14 and 17, the feed screw 26 serving as a depth-adjustable stop for the removable prisms 14 and 17. This allows the drill 11 to be adjusted by rotating A of the stand piece 8 to the surface F or the circumference U of the grinding wheel 2 and, on the one hand, by pivoting B the clamping device 5 in the tip area and after repositioning by means of blind holes 22, 23 on the axle bolt 10.
  • a grinding stand 31 with a grinding wheel 32 and adjusting foot 33 on the table 34 is used for grinding the cutting edges of drills in connection with the clamping device 35 according to the invention.
  • the clamping device 35 is here by means of an angular base plate 36 on the slot guide 37 of the grinding block 31 adjustable, which slot guide 37 on the grinder block 31 is otherwise used to attach the grinding pad, which is removed here. Otherwise, the clamping device 35 corresponds to that of FIG. 5 and parts 8 to 10 and 12 to 23 for grinding the drill 11; only the end faces 38, 39 are arranged at an angle on the prisms here, so that in cooperation with the adjustable feed screw 40 during the pivoting movement C there is a screwing movement for grinding. In the same way as in the first exemplary embodiment, end faces of the prisms arranged at right angles can also be used here.

Abstract

This invention relates to a fixing device for fixing drills which are to be ground at their cutting edges. The fixing device comprises a baseplate, a stand carried by said baseplate, a pivot pin mounted on said stand near its top end, and a gripping device, which is slidably fitted on said pivot pin and adapted to grip the drill which is to be ground. The invention provides a simple and inexpensive fixing device of this type, which can be used for grinding twist drills or other drills, particularly by hobbyists, with adequate accuracy. In a device for fixing a drill which is to be ground at its cutting edges, comprising a baseplate, a stand carried by said baseplate, a pivot pin mounted on said stand near its top end, and a gripping device, which is fitted on said pivot pin and adapted to grip the drill which is to be ground, wherein said gripping device comprises a retaining member and prismatic members which extend transversely to said retaining member and are adapted to be adjusted relative to each other and to be fixed in position, a web of said retaining member carries a thrust screw for gripping a drill disposed between the prismatic members, and the prismatic members have end faces formed with blind bores for a fitting of the prismatic members on said pivot pin in different positions, that object is accomplished according in that the retaining member consists of a U-shaped guiding member, which embraces the prismatic members and extends into grooves formed on opposite sides of said prismatic members, one of said prismatic members constitutes an outer prismatic member, which is crew-connected to the end portions of the legs of the retaining member, the other of said prismatic members constitutes an inner prismatic member and is adapted to be displaced by said thrust screw so as to grip the drill between the prismatic members, and the prismatic members are formed in confronting surfaces with respective U-shaped longitudinal grooves, which are adapted to receive the drill.

Description

Die Erfindung betrifft eine Haltevorrichtung für Bohrer zum Schleifen der Schneiden bestehend aus einer Grundplatte, welche ein Standstück mit rechtwinkligem Achsbolzen am oberen Ende zum Aufstecken einer Einspanneinrichtung für den zu schleifenden Bohrer trägt.The invention relates to a holding device for drills for grinding the cutting edges consisting of a base plate which carries a stand piece with a right-angled axle bolt at the upper end for attaching a clamping device for the drill to be ground.

Es sind solche Vorrichtungen zum Schleifen der Schneiden von Spiralbohrern nach der DE-C-28 33 420 bekannt, bestehend aus einer Grundplatte, auf der mittels einer Gewindespindel ein Schlitten waagrecht verschiebbar geführt ist, der einen Ständer trägt, welchet gegenüber dem Schlitten um eine lotrechte Achse verschwenkbar ist und an seinem oberen Ende eine horizontale Achse trägt, auf der eine Einspanneinrichtung für den zu schleifenden Bohrer schwenkbar Belagert ist, wobei im Schlitten eine vertikale Gewindebohrung angeordnet ist, in der eine ein Langloch in einer Bodenplatte des als Winkelstück ausgebildeten Ständers durchsetzende Spannschraube eingeschraubt ist, die zur Lagenfixierung des Ständers dient und daß ein nach oben ragender Schenkel der L-förmigen Grundplatte ein Spannauge zur Aufnahme des Lagerhalses einer Handbohrmaschine aufweisen kann. Hierbei wird nach der DE-A-29 15 601 die Einspanneinrichtung so weitergebildet, daß sie von zwei mit ihren Zähnen kammartig ineinandergreifenden, mittels einer Spannschraube gegeneinander bewegbaren Spannbacken gebildet ist und daß an dem dem Ständer benachbarten Ende einer jeden Spannbacke ein etwa keilförmig ausgebildeter, sich gegen die Spitze des einzuspannenden Bohrers verjüngender Ansatz und jeweils eine Bohrung vorgesehen ist, durch welche die Spannbacke am Ständer umsetzbar auf den horizontalen Achsbolzen aufsetzbar ist, wobei der Ansatz der Spannbacken Prismenflächen aufweist und die Spannbacken der Einspanneinrichtung mittels Querführungsstiften einer seitlichen Halteleiste zueinander verschiebbar und die Spannschraube in der Halteleiste schraubbar gelagert ist.Such devices for grinding the cutting of twist drills according to DE-C-28 33 420 are known, consisting of a base plate on which a slide is guided horizontally displaceably by means of a threaded spindle, which carries a stand which is perpendicular to the slide Axis is pivotable and carries at its upper end a horizontal axis on which a clamping device for the drill bit to be ground is pivotally supported, a vertical threaded bore being arranged in the slide, in which a tensioning screw penetrating an elongated hole in a base plate of the stand designed as an angle piece is screwed, which serves to fix the position of the stand and that an upstanding leg of the L-shaped base plate can have a clamping eye for receiving the bearing neck of a hand drill. According to DE-A-29 15 601, the clamping device is further developed so that it is formed by two jaws which intermesh with their teeth in a comb-like manner and can be moved relative to one another by means of a clamping screw, and that an approximately wedge-shaped, approach tapering against the tip of the drill to be clamped and in each case a hole is provided through which the clamping jaw on the stand can be put onto the horizontal axle bolt, the projection of the clamping jaws having prismatic surfaces and the clamping jaws of the clamping device being displaceable with respect to one another by means of transverse guide pins of a lateral retaining strip and the clamping screw is screw-mounted in the retaining bar.

Hierbei hat sich gezeigt, daß es sich hier um eine für sehr präzise Arbeiten einsetzbare Einrichtung handelt, die jedoch in der Herstellung eine genaue Anpassung und Präzision der Teile zueinander sowie zahlreiche Einzelteile notwendig macht, welche Einrichtung deshalb teuer und aufwendig ist und sich vorallem für Betriebe eignet.It has been shown that this is a device that can be used for very precise work, but which requires an exact adaptation and precision of the parts to one another and numerous individual parts in the production, which device is therefore expensive and complex and is particularly suitable for companies is suitable.

Desweiteren ist nach der FR-A-24 27 174 zum Nachschleifen von Bohrern ein Haltestück als U-förmiges Führungsstück die Prismen mit den Schenkeln umgreifend, bekannt, wobei das eine äußere Prisma in seiner Lage zwischen den Enden der Schenkel festgelegt und das innere Prisma mittels Druckschraube zum Einspannen des Bohrers verschiebbar ist und der Bohrer in zwei gegenüberliegenden, winkelförmigen Längsnuten zwischen den Prismen aufnehmbar ist. Hierbei handelt es sich im ganzen um eine aufwendige Bohrerhaltung.Furthermore, according to FR-A-24 27 174 for regrinding of drills, a holding piece is known as a U-shaped guide piece encompassing the prisms with the legs, the outer prism being fixed in its position between the ends of the legs and the inner prism by means Pressure screw for clamping the drill is displaceable and the drill can be received in two opposite, angular longitudinal grooves between the prisms. All in all, this is a complex drill maintenance.

Aufgabe der vorliegenden Erfindung ist es hiergegen eine einfachere und preiswertere Ausführung zum Anschleifen von Bohrern (Spiralbohrern) vorallem für Heimwerker, welche auch eine einwandfreie Genauigkeit ergeben, zu schaffen, die sich auch für einen weiten Bereich unterschiedlicher Bohrerstärken eignet.In contrast, the object of the present invention is to provide a simpler and cheaper design for grinding drills (twist drills), especially for do-it-yourselfers, which also give perfect accuracy, which is also suitable for a wide range of different drill strengths.

Zur Lösung dieser Aufgabe kennzeichnet sich die Einrichtung der Erfindung nach dem Oberbegriff des Anspruchs 1 dadurch, daß das Standstück parallel zum Achsbolzen eine Zustellschraube als Anschlag für die Prismen aufweist, wodurch auch in einfacher Weise eine hohe Genauigkeit der Schleifsymmetrie beim Umstecken des Haltestücks mit Prismen für die Bohreraufnahme zum beidseitigen Nachschliff der Bohrerspitze ergibt, und ferner, daß die Prismen beidseits unterschiedliche Längsnuten in Form von Winkeleinschnitten zur Aufnahme unterschiedlicher Bohrerdurchmesser aufweisen, wodurch sich Bohrer unterschiedlichster Durchmessergröße mit derselben Vorrichtung nachschleifen lassen.To achieve this object, the device according to the preamble of claim 1 is characterized in that the stand piece has a feed screw as a stop for the prisms parallel to the axle bolt, which also makes it easy to achieve a high degree of grinding symmetry when repositioning the holding piece with prisms for the drill receptacle for regrinding the drill tip on both sides results, and furthermore, that the prisms have different longitudinal grooves on both sides in the form of angular incisions for receiving different drill diameters, so that drills of different diameter sizes can be regrind with the same device.

Weitere Einzelheiten der Haltevorrichtung gemäß der Erfindung sind an Hand der Zeichnung an bevorzugten Ausführungsbeispielen beschrieben und zwar zeigen:

  • Figur 1 die perspektivische Ansicht einer Vorrichtung beim Schleifen eines Spiralbohrers mittels Heimwerkermaschine und
  • Figur 2 die perspektivische Ansicht einer Vorrichtung beim Schleifen eines Spiralbohrers an einem Schleifbock.
Further details of the holding device according to the invention are described with reference to the drawing of preferred exemplary embodiments and show:
  • Figure 1 is a perspective view of a device when grinding a twist drill using a home improvement machine
  • Figure 2 is a perspective view of a device when grinding a twist drill on a bench grinder.

Wie beim ersten Ausführungsbeispiel nach Figur 1 ersichtlich wird, ist hier eine Heimwerkermaschine 1 mit einer Schleifscheibe 2 bestückt und mittels Halter 3 am Tisch 4 befestigt. Demgegenüber ist die erfindungsgemäße Einspanneinrichtung 5 angeordnet, deren Grundplatte 6 mittels Spanner 7 ebenfalls am Tisch 4 zu halten ist. Hierauf (6) ist das Standstück 8 senkrecht hierzu mittels Schraubenachse 9 dreh-, höhenverstell- und feststellbar angeordnet und dient mit rechtwinkligem Achsbolzen 10 zum Aufstecken der Einspanneinrichtung 5. Diese Einspanneinrichtung für den zu schleifenden Bohrer 11 besteht aus dem U-förmigen Führungsstück 12, an dessen Schenkelenden 13 ein querliegendes, äußeres Prisma 14 mit beidseitigen U-Nuten 15 einschieb- und mittels Schrauben 16 festlegbar ist und ein zweites querliegendes, inneres Prisma 17 mit beidseitigen U-Nuten 18 innheralb des U-förmigen Führungsstücks 12 zum ersten Prisma im Abstand a einstellbar ist. Eine Druckschraube 19 am Querschenkel des Führungsstücks 12 dient bei zwischen den Prismen 14 und 17 eingelegtem Bohrer 11 zu dessen Festspannung in den winkelförmigen Längsnuten 20 bzw. 21. Diese Längsnuten 20 bzw. 21 sind unterschiedlich groß und so durch Umsetzen für unterschiedliche Bohrerdurchmesser verwendbar. Die Sacklöcher 22, 23 an den Stirnflächen 24, 25 der Prismen 14 und 17 dienen dem Umstecken der Einspanneinrichtung 5 in Verbindung mit den Achsbolzen 10. Die Stirnflächen 24, 25 sind hier rechtwinklig zur Längsnutachse 20 an den Prismen 14 und 17 angeordnet, wobei die Zustellschraube 26 als tiefeneinstellbarer Anschlag der umsteckbaren Prismen 14 und 17 dient. Hiermit läßt sich der Bohrer 11 durch Verdrehen A des Standstücks 8 auf die Fläche F oder dem Umfang U der Schleifscheibe 2 einstellen und durch Verschwenken B der Einspanneinrichtung 5 einerseits im Spitzenbereich und nach dem Umstecken mittels Sacklöcher 22, 23 auf dem Achsbolzen 10 andererseits schleifen.As can be seen in the first exemplary embodiment according to FIG. 1, here a home improvement machine 1 is equipped with a grinding wheel 2 and fastened to the table 4 by means of a holder 3. In contrast, the clamping device 5 according to the invention is arranged, the base plate 6 of which is also to be held on the table 4 by means of a tensioner 7. Thereupon (6), the stand piece 8 is arranged to be rotatable, height-adjustable and lockable perpendicularly thereto by means of screw axis 9 and is used with a right-angled axis pin 10 for attaching the clamping device 5. This clamping device for the drill 11 to be ground consists of the U-shaped guide piece 12, at its leg ends 13 a transverse outer prism 14 with U-grooves 15 on both sides can be inserted and fixed by means of screws 16 and a second transverse inner prism 17 with U-grooves 18 on both sides inside the U-shaped guide piece 12 at a distance from the first prism a is adjustable. A pressure screw 19 on the cross leg of the guide piece 12 is used when the drill 11 is inserted between the prisms 14 and 17 to fix it in the angular longitudinal grooves 20 and 21. These longitudinal grooves 20 and 21 are of different sizes and can therefore be used for different drill diameters. The blind holes 22, 23 on the end faces 24, 25 of the prisms 14 and 17 are used to reposition the clamping device 5 in connection with the axle bolts 10. The end faces 24, 25 are arranged here at right angles to the longitudinal groove axis 20 on the prisms 14 and 17, the feed screw 26 serving as a depth-adjustable stop for the removable prisms 14 and 17. This allows the drill 11 to be adjusted by rotating A of the stand piece 8 to the surface F or the circumference U of the grinding wheel 2 and, on the one hand, by pivoting B the clamping device 5 in the tip area and after repositioning by means of blind holes 22, 23 on the axle bolt 10.

Beim zweiten Ausüfhrungsbeispiel nach Figur 2 dient ein Schleifbock 31 mit einer Schleifscheibe 32 und Stellfuß 33 auf dem Tisch 34 zum Schleifen der Schneiden von Bohrern in Verbindung mit der erfindungsgemäßen Einspanneinrichtung 35. Die Einspanneinrichtung 35 ist hier mittels winkelförmiger Grundplatte 36 an der Schlitzführung 37 des Schleifbocks 31 verstellbar gehalten, welche Schlitzführung 37 am Schleifbock 31 sonst der Befestigung der Schleifauflage dient, die hier abgenommen ist. Im übrigen entspricht hier die Einspanneinrichtung 35 derjenigen 5 nach Figur 1 und den Teilen 8 bis 10 und 12 bis 23 zum Schleifen des Bohrers 11; lediglich die Stirnflächen 38,39 sind hier winklig an den Prismen angeordnet, sodaß sich in Zusammenwirkung mit der einstellbaren Zustellschraube 40 bei der Schwenkbewegung C eine Schraubbewegung zum Schliff ergibt. In gleicher Weise wie beim ersten Ausführungsbeispeil können hier aber auch rechtwinklig angeordnete Stirnflächen der Prismen Verwendung finden.In the second exemplary embodiment according to FIG. 2, a grinding stand 31 with a grinding wheel 32 and adjusting foot 33 on the table 34 is used for grinding the cutting edges of drills in connection with the clamping device 35 according to the invention. The clamping device 35 is here by means of an angular base plate 36 on the slot guide 37 of the grinding block 31 adjustable, which slot guide 37 on the grinder block 31 is otherwise used to attach the grinding pad, which is removed here. Otherwise, the clamping device 35 corresponds to that of FIG. 5 and parts 8 to 10 and 12 to 23 for grinding the drill 11; only the end faces 38, 39 are arranged at an angle on the prisms here, so that in cooperation with the adjustable feed screw 40 during the pivoting movement C there is a screwing movement for grinding. In the same way as in the first exemplary embodiment, end faces of the prisms arranged at right angles can also be used here.

Claims (3)

1. A holder for drills (11) to be ground at their cutting edges, consisting of a baseplate (16), which carries a stand (B), which is provided at its top end with a pivot pin (10) extending at right angles and adapted to be inserted into a gripper (5) for the drill (11) to be ground, which gripper (5) consists of a bracket provided with prisms (14, 17), which extend transversely to the bracket and are adjustable relative to each other and adapted to be fixed in position end at their end faces are provided with blind holes (22, 23) for a rearrangement, the bracket consists of a U-shaped guide member (12,13), which with its legs embraces the prisms, one outer prism (14) is fixed in position between the ends of the legs, the inner prism (17) is displaceable by means of a pressure-applying screw (19) for gripping the drill, and the drill is adapted to be received between the prisms in two mutually opposite, angular longitudinal grooves (24, 21), cnaracterized in that the stand (8) is provided with an adjusting screw (26), which extends parallel to the pivot pin (10) and serves as a stop for the prisms, and the prisms (14, 17) are formed on opposite sides wich different longitudinal grooves (20, 21), which consist of angled incisions and serve to receive drills (11) which differ in diameter.
2. A holder according to claim 1, characterized in that the end faces (24, 25) of the transversaly extending prisms (14, 17) extend at an angle to the axis (20) of the longitudinal grooves (20).
3. Apparatus according to claim 1 or 2, characterized in that the baseplate (6, 36) is adapted to be fixed in position end carries the stand (6) so that the latter is rotatable and adjustzble in height and adapted to he fixed in position.
EP82110241A 1981-11-25 1982-11-06 Support for drills for sharpening cutting edges Expired EP0080093B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110241T ATE24856T1 (en) 1981-11-25 1982-11-06 HOLDING DEVICE FOR DRILLS FOR GRINDING THE BLADES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3146664 1981-11-25
DE3146664A DE3146664C1 (en) 1981-11-25 1981-11-25 Holding device for drills for grinding the cutting edges

Publications (3)

Publication Number Publication Date
EP0080093A2 EP0080093A2 (en) 1983-06-01
EP0080093A3 EP0080093A3 (en) 1984-08-01
EP0080093B1 true EP0080093B1 (en) 1987-01-14

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ID=6147154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110241A Expired EP0080093B1 (en) 1981-11-25 1982-11-06 Support for drills for sharpening cutting edges

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US (1) US4547999A (en)
EP (1) EP0080093B1 (en)
AT (1) ATE24856T1 (en)
DE (1) DE3146664C1 (en)

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CN106217138A (en) * 2016-07-27 2016-12-14 芜湖精钻机电技术有限公司 A kind of gun drill blade milling machine

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US4270315A (en) * 1978-07-29 1981-06-02 Reinhold Reiling Fixture for holding a twist drill to be reground
US4405120A (en) * 1981-06-05 1983-09-20 O.K. Machine And Tool Corporation Printed circuit board holder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106002503A (en) * 2016-07-27 2016-10-12 芜湖精钻机电技术有限公司 Gun-drill blade sharpening positioning clamp
CN106217138A (en) * 2016-07-27 2016-12-14 芜湖精钻机电技术有限公司 A kind of gun drill blade milling machine
CN106002503B (en) * 2016-07-27 2019-05-31 芜湖精钻机电技术有限公司 A kind of drill gun sharpening positioning fixture

Also Published As

Publication number Publication date
US4547999A (en) 1985-10-22
EP0080093A3 (en) 1984-08-01
ATE24856T1 (en) 1987-01-15
DE3146664C1 (en) 1983-07-07
EP0080093A2 (en) 1983-06-01

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