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DE404126C - Device for producing the twist on twist drill blanks - Google Patents

Device for producing the twist on twist drill blanks

Info

Publication number
DE404126C
DE404126C DEK88519D DEK0088519D DE404126C DE 404126 C DE404126 C DE 404126C DE K88519 D DEK88519 D DE K88519D DE K0088519 D DEK0088519 D DE K0088519D DE 404126 C DE404126 C DE 404126C
Authority
DE
Germany
Prior art keywords
twist
producing
drill
twist drill
disks
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
DEK88519D
Other languages
German (de)
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.)
Koelnische Spiralbohrer & Werk
Original Assignee
Koelnische Spiralbohrer & Werk
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 Koelnische Spiralbohrer & Werk filed Critical Koelnische Spiralbohrer & Werk
Priority to DEK88519D priority Critical patent/DE404126C/en
Application granted granted Critical
Publication of DE404126C publication Critical patent/DE404126C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/14—Twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K5/00—Making tools or tool parts, e.g. pliers
    • B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
    • B21K5/04—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes twisting-tools, e.g. drills, reamers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Description

Gegenstand der Erfindung ist eine Vorrichtung zur Herstellung des Dralls an Spiralbohrer-Rohlingen. Dieselbe besteht aus einer beliebigen Anzahl übereinander ange-5 ordneter Scheiben mit je einer mittleren Durchbrechung von der Form und Größe des Spiralbohrerquerschnitts, die, nachdem der erwärmte Spiralbohrer-Rohling in die Durchbrechung der Scheiben eingeschoben ist, so ίο verdreht werden, daß der Spiralbohref den gewünschten Drall erhält. Die Scheibendrehung kann durch Anschlagnocken, die sich in Aussparungen der nächstfolgenden Scheibe bewegen oder durch andere Mittel so begrenzt werden, daß ein bestimmter Drallwinkel erreicht wird, der auch von dem einen zum anderen Ende zu- oder abnehmen kann, wenn die Drehbewegung der Scheiben in ihrer Reihenfolge zu- oder abnimmt.The invention relates to a device for producing the twist on twist drill blanks. It consists of any number of slices arranged one above the other, each with a central one Breakthrough on the shape and size of the drill bit cross-section that was made after the heated Twist drill blank is inserted into the opening in the disks, so ίο be rotated that the twist drill thread desired twist. The disk rotation can be controlled by stop cams, which are located in the recesses of the next Move disk or be limited by other means so that a certain angle of twist is achieved, which can also increase or decrease from one end to the other when the rotary movement of the discs in their order increases or decreases.

Die Herstellung des Dralls ist durch die ao neue Vorrichtung wesentlich vereinfacht. Es lassen sich damit Spiralbohrer mit beliebigem Drallwinkel in der genauesten Weise herstellen. The production of the twist is considerably simplified by the ao new device. It this allows twist drills with any helix angle to be produced in the most precise manner.

Auf der Zeichnung ist eine Ausführungsform der Vorrichtung dargestellt, und zwar zeigen:In the drawing, an embodiment of the device is shown, namely demonstrate:

Abb. ι eine Scheibe, von unten gesehen, mit einem Querschnitt durch den eingeschobenen Spiralbohrer-Rohling,Fig. Ι a disk, seen from below, with a cross section through the inserted Twist drill blank,

Abb. 2 die Vorrichtung vor der Verdrehung der Scheiben, von der Seite gesehen, teilweise im Querschnitt.Fig. 2 the device before the rotation of the discs, seen from the side, partially in cross section.

ίο 'Die Vorrichtung besteht · aus einer beliebigen Anzahl übereinander angeordneter Scheiben a, die mit je einer mittleren Durchbrechung b von der Form und Größe des Spiralbohrerquerschnitts c versehen und beispielsweise in einer Büchse so geführt sind, daß sie genau übereinander liegenbleiben müssen. Jede der Scheiben α besitzt einen Anschlagnocken d, der sich in einer Aussparung / der nächstfolgenden Scheibe bewegt. Durch entsprechende Bemessung der Anschläge und Nocken läßt sich die Drehung der einen Scheibe auf der anderen genau begrenzen. Die unterste Scheibe kann festliegen oder in entgegengesetzter Richtung zu der obersten Scheibe gedreht werden.ίο 'The device consists of any number of disks a arranged one above the other, each provided with a central opening b of the shape and size of the twist drill cross section c and, for example, guided in a sleeve so that they must remain exactly one above the other. Each of the disks α has a stop cam d which moves in a recess / the next following disk. The rotation of one disk on the other can be precisely limited by appropriately dimensioning the stops and cams. The lowest disc can be fixed or rotated in the opposite direction to the uppermost disc.

Nachdem der erwärmte Spiralbohrer-Rohling c in die Durchbrechung b der Scheiben α eingeschoben ist, wird die oberste , Scheibe durch eine geeignete Einrichtung langsam gedreht, während die unterste Scheibe festliegt. Dabei verdrehen sich sämtliche Scheiben α zueinander, bis ihre Drehung durch die Anschlagnocken d und Aussparungen / begrenzt wird. Der Spiralbohrer-Rohling c erhält dadurch den gewünschten Drall.After the heated twist drill blank c has been inserted into the opening b of the disks α , the uppermost disk is slowly rotated by a suitable device, while the lowest disk is fixed. In the process, all disks α rotate with respect to one another until their rotation is limited by the stop cams d and recesses /. This gives the twist drill blank c the desired twist.

Claims (2)

Patent-Ansprüche :Patent Claims: 1. Vorrichtung zur Herstellung des Dralls an Spiralbohrer-Rohlingen, gekennzeichnet durch in beliebiger Anzahl übereinander angeordnete Scheiben mit je einer mittleren Durchbrechung von der Form und. Größe des Spiralbohrerquerschnitts, die, nachdem der erwärmte Spiralbohrer-Rohling in die Durchbrechung der Scheiben eingeschoben ist, so verdreht werden, daß der Spiralbohrer den gewünschten Drall erhält.1. Device for producing the twist on twist drill blanks, marked by any number of discs arranged one above the other, each with a central opening in the shape and. Size of the drill bit cross-section after the heated drill bit blank is inserted into the opening in the disks, twisted so that the twist drill the desired Twist receives. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Scheibendrehung durch Anschlagnocken, die sich in Aussparungsn der nächstfolgenden Scheibe bewegen, so begrenzt ist, daß ein bestimmter Drallwinkel erreicht wird.2. Apparatus according to claim 1, characterized characterized in that the disk rotation by stop cams, which are move in Ausrückungsn the next disc, is so limited that a certain helix angle is achieved.
DEK88519D 1924-02-19 1924-02-19 Device for producing the twist on twist drill blanks Expired DE404126C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK88519D DE404126C (en) 1924-02-19 1924-02-19 Device for producing the twist on twist drill blanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK88519D DE404126C (en) 1924-02-19 1924-02-19 Device for producing the twist on twist drill blanks

Publications (1)

Publication Number Publication Date
DE404126C true DE404126C (en) 1924-10-14

Family

ID=7236263

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK88519D Expired DE404126C (en) 1924-02-19 1924-02-19 Device for producing the twist on twist drill blanks

Country Status (1)

Country Link
DE (1) DE404126C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036015B (en) * 1953-11-04 1958-08-07 Western Electric Co Mandrel for internally supporting non-circular pipes when twisting
DE3027030A1 (en) * 1980-07-17 1982-02-11 Ufimskij aviacionnyj institut imeni Ordžonikidze, Ufa Turbine blade making method - involves shaping blade by extrusion into blind cavity in one-piece die
EP0865847A2 (en) * 1996-11-26 1998-09-23 DreBo Werkzeugfabrik GmbH Drill and method for its production

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036015B (en) * 1953-11-04 1958-08-07 Western Electric Co Mandrel for internally supporting non-circular pipes when twisting
DE3027030A1 (en) * 1980-07-17 1982-02-11 Ufimskij aviacionnyj institut imeni Ordžonikidze, Ufa Turbine blade making method - involves shaping blade by extrusion into blind cavity in one-piece die
EP0865847A2 (en) * 1996-11-26 1998-09-23 DreBo Werkzeugfabrik GmbH Drill and method for its production
EP0865847A3 (en) * 1996-11-26 1999-09-15 DreBo Werkzeugfabrik GmbH Drill and method for its production

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