WO2007073850A1 - Outil de formation de filets sans enlevement de matiere, en particulier pour la formation de filets interieurs - Google Patents

Outil de formation de filets sans enlevement de matiere, en particulier pour la formation de filets interieurs Download PDF

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Publication number
WO2007073850A1
WO2007073850A1 PCT/EP2006/011875 EP2006011875W WO2007073850A1 WO 2007073850 A1 WO2007073850 A1 WO 2007073850A1 EP 2006011875 W EP2006011875 W EP 2006011875W WO 2007073850 A1 WO2007073850 A1 WO 2007073850A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool according
working part
clamping
clamping shaft
shaft
Prior art date
Application number
PCT/EP2006/011875
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Edelmann
Original Assignee
Jel Precision Tools Gmbh & Co. Kg
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 Jel Precision Tools Gmbh & Co. Kg filed Critical Jel Precision Tools Gmbh & Co. Kg
Priority to EP06829467A priority Critical patent/EP1960146A1/fr
Priority to US12/097,048 priority patent/US20090005185A1/en
Publication of WO2007073850A1 publication Critical patent/WO2007073850A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G7/00—Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
    • B23G7/02—Tools for this purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/02—Tools in which the shank and the cutting part are made from different materials or from separate components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/06—Connections between parts of threading tools
    • B23G2200/062—Brazed connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/06—Connections between parts of threading tools
    • B23G2200/065—Glued connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00—Details of threading tools
    • B23G2200/46—Tools having a section of polygonal form, e.g. for the transmission of torque

Definitions

  • the invention relates to a tool for non-cutting shaping of threads, in particular for molding internal threads, according to the preamble of claim 1.
  • the invention is based on the object, the generic tool in such a way that it can be made cheap and easy.
  • the working part is a component which is fastened non-positively in the axial direction on the clamping shaft and which can be designed as a sleeve or as a solid head.
  • the thread grooves can be easily introduced with a grinding wheel.
  • the working part can be easily attached to the clamping shaft, for example by gluing, by soldering or by shrinking.
  • 1 is a side view of an inventive tool for chipless shaping of threads
  • FIG. 1 is an end view of the tool of FIG. 1,
  • Fig. 5 respectively in an enlarged view of a shaping area of further embodiments of tools according to the invention.
  • the tool according to FIGS. 1 and 2 has a preferably cylindrical clamping shaft 1, with which the tool is received in a tool holder.
  • the clamping shaft 1 is advantageously made of steel or a tough carbide.
  • the left in Fig. 1 end 2 of the clamping shaft 1 is tapered in cross-section.
  • a sleeve 3 is fixed, which can be soldered, glued or shrunk on the shaft end 2.
  • the sleeve 3 is advantageously made of hard metal and has at the free end a Antenil 4, whose axial length is smaller than that half length of the sleeve 3.
  • the Anteneil 4 tapers towards its free end.
  • the adjoining the Anauereil 4 area 5 is formed as a polygon (Fig. 2) and has on the circumference lying in radial planes thread grooves.
  • the serving as a guide thread portion 5 of the sleeve 3 has four axially extending edges 6 to 9, each having an angular distance of 90 ° from each other.
  • the area between adjacent edges 6 to 9 of the shell portion of the region 5 is in each case convex.
  • these convex sheath sections are the (not shown) thread grooves, which are preferably ground into the shell sections.
  • the sleeve region 5 can also have a different polygon cross-section. A deviating from a polygon cross section of the sleeve portion 5 is possible.
  • the preparation of the tool is simple, since the annular sleeve 3 can be easily attached to the shaft end 2.
  • the thread grooves can be easily grind into the sleeve 3. Since the grinding wheel only comes into contact with the material of the sleeve 3 during the grinding process, the risk of smearing of the grinding wheel is low.
  • 2 shows a variant of the connection between the shaft end 2 and the sleeve 3.
  • the inner wall 10 of the sleeve 3 rests on a cylinder jacket.
  • the shaft end 2 extends to the flat end face 1 1 of the sleeve. 3
  • a variant is shown, in which the inner wall 10 of the sleeve 3 is polygonal. In this way, a positive engagement is achieved between the shaft end 2 and the sleeve 3 in the direction of rotation of the tool.
  • the inner wall 10 of the sleeve 3 and, accordingly, the outer wall of the shaft end 2 has three axially extending edges 12 to 14, which is an angular distance of 120 ° from- have each other. In the area between the edges 12 to 14, the wall sections are convex.
  • the edges 12 and 13 are angularly offset from the edges 6, 7, 9 of the sleeve 3, while the edge 14 of the inner wall 10 is in the same plane as the edges 6 and 8 of the sleeve 3.
  • the inner wall 10 of the sleeve 3 can to achieve a Form fit with the shaft end 2 also have any other, deviating from a circular cross-section.
  • the tool of FIG. 2 is the same design as the embodiment of FIG. 1st
  • Fig. 3 shows an embodiment in which the shaft end 2 has a remote outer contour.
  • the adjoining the clamping shaft 1 shaft portion 15 has a smaller cross-sectional area than the outside of the sleeve 3 lying part of the cylindrical clamping shank 1.
  • the adjoining the shank portion 15 shank portion 16 is longer in the embodiment than the shank portion 15 and in turn has a smaller cross-section than the shank portion 15th
  • the shaft portions 15 and 16 each have a constant cross section.
  • the shaft portions 15, 16 may be cylindrical as in the embodiment of FIG. 1, but may also be designed polygonal according to the embodiment of FIG. It is also possible to form the two shaft sections 15 and 16 differently in their cross-sectional shape.
  • the stepped contour of the shaft end 2 increases the stability of the sleeve 3 in the Antenil. 4
  • the sleeve 3 rests on the radial annular shoulder 17 which is formed at the transition from the clamping shaft 1 to the shaft portion 15.
  • the inner wall 10 of the sleeve 3 is adapted to the outline shape of the shaft portions 15, 16.
  • the sleeve 3 may be secured to the shaft sections 15, 16 by soldering, gluing or shrinking.
  • the shank portion 16 extends to the end face 1 1 of the Anteniles 4, so that the sleeve 3 sits securely on the shank portions 15, 16.
  • the shaft end 2 is continuously tapered towards its free end.
  • the shaft end 2 may be tapered conically.
  • the tapering of the shank end 2 can also be provided, for example, in the case of a polygonal design or another shape deviating from a circular shape in cross section.
  • the stability of the sleeve 3 is increased in the region of the Anteneiles 4.
  • the inner wall 10 of the sleeve 3 is adapted to the contour shape of the shaft end 2, so that a secure connection between the shaft end 2 and the sleeve 3 is ensured.
  • the sleeve 3 projects radially beyond the clamping shaft 1. It is also the same design as in the previous embodiments.
  • Fig. 5 shows the possibility, instead of a sleeve to use a solid head 18 having the Anschnitteil 4 and the thread grooves containing area 5.
  • the solid head 18 has at its one end face 19, a blind hole 20 into which the shaft end 2 protrudes.
  • the blind hole 20 only extends over half the axial length of the region 5 of the solid head 18 which has the thread grooves.
  • the shank end 2 can have a cylindrical, a polygonal or any other suitable outer contour. Accordingly, the inner wall 10 of the blind hole 20 is formed.
  • the solid head 18 is advantageously made of hard metal and is attached to the shaft end 2 by soldering, gluing or shrinking.
  • the blind hole 20 has in the illustrated embodiment over its axial length constant cross-section. It is also possible, the blind hole 20 so too design that its cross-section decreases axially inward, preferably steadily.
  • the solid head 18 protrudes radially beyond the clamping shaft 1 and rests with its end face 19 on the annular shoulder 17 of the clamping shaft 1.
  • FIG. 2 shows by way of example the possibility of providing the tool with an internal coolant supply 21. It is formed by at least one coolant hole, which extends axially through the clamping shaft 1 and the shaft end 2 and the shaft portions 15, 16 and opens into the end face 1 1 of the Anteneiles 4.
  • transitional bevel At the transition from the cylindrical clamping shaft 2 to the reduced in cross-sectional area shank end 2 and the shaft portions 15, 16 is advantageously a transitional bevel, a transition radius or a similar contour provided to reduce the notch effect in these areas. Also between the shank portions 15, 16 is advantageously provided such a transitional bevel, transition radius and the like.
  • the tools described can be very easily and inexpensively. With the tools, heavy-duty threads can be produced without a cutting process. With the provided in the region 5 of the sleeve 3 and the solid head 18 thread grooves, the thread is produced by a stamping process in the workpiece. As a result of the described design of the tools, the high loads which occur in the workpiece due to the material displacement in the non-cutting thread production are reliably absorbed. The radially directed pressure forces occurring during manufacture are derived from the sleeve 3 or from the solid head 18 into the shaft end 2 or the shaft sections 15, 16 and from there into the clamping shaft 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

L'invention concerne un outil qui présente une tige de serrage (1) et une partie de travail (3) sous la forme d'une zone de formation dotée de rainures filetées. Pour pouvoir fabriquer l'outil avantageusement et de manière simple, la pièce de travail (3) est constituée d'un composant maintenu en correspondance mécanique dans la direction de l'axe sur la tige de serrage (1). Les rainures filetées peuvent être ménagées sans problème dans la pièce de travail (3) à l'aide d'un disque de meulage. La pièce de travail (3) peut être fixée aisément sur la tige de serrage (1). L'outil est utilisé pour former des filets sans enlèvement de matière.
PCT/EP2006/011875 2005-12-15 2006-12-09 Outil de formation de filets sans enlevement de matiere, en particulier pour la formation de filets interieurs WO2007073850A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06829467A EP1960146A1 (fr) 2005-12-15 2006-12-09 Outil de formation de filets sans enlevement de matiere, en particulier pour la formation de filets interieurs
US12/097,048 US20090005185A1 (en) 2005-12-15 2006-12-09 Tool for the Chipless Shaping Threads, in Particular for the Forming of Internal Threads

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062519A DE102005062519A1 (de) 2005-12-15 2005-12-15 Werkzeug zur spanlosen Formgebung von Gewinden, insbesondere zum Formen von Innengewinden
DE102005062519.3 2005-12-15

Publications (1)

Publication Number Publication Date
WO2007073850A1 true WO2007073850A1 (fr) 2007-07-05

Family

ID=37944385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/011875 WO2007073850A1 (fr) 2005-12-15 2006-12-09 Outil de formation de filets sans enlevement de matiere, en particulier pour la formation de filets interieurs

Country Status (4)

Country Link
US (1) US20090005185A1 (fr)
EP (1) EP1960146A1 (fr)
DE (1) DE102005062519A1 (fr)
WO (1) WO2007073850A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008053772A1 (de) 2008-10-22 2010-04-29 Komet Jel Precision Tools Gewindeformer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324752A (en) * 1997-04-29 1998-11-04 Richard Lloyd Limited Tap tools
WO2002076661A1 (fr) * 2001-03-22 2002-10-03 Johne + Co. Präzisionswerkzeuge Gmbh Outil et ensemble outil
DE10338754A1 (de) * 2003-08-23 2005-03-24 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Werkzeug zur spanlosen Erzeugung eines Gewindes und Verfahren zur Herstellung eines Werkzeugs zur spanlosen Gewindeerzeugung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240840A (en) * 1939-10-13 1941-05-06 Gordon H Fischer Tap construction
US6012882A (en) * 1995-09-12 2000-01-11 Turchan; Manuel C. Combined hole making, threading, and chamfering tool with staggered thread cutting teeth
JP3307809B2 (ja) * 1995-10-05 2002-07-24 兼房株式会社 シャンク付回転工具
SE518154C2 (sv) * 1999-12-21 2002-09-03 Sandvik Ab Borr bestående av borrspetsparti som är löstagbart förenat med ett borrskaft
DE10136293B4 (de) * 2001-07-25 2006-03-09 Wilhelm Fette Gmbh Gewindeformer oder -bohrer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324752A (en) * 1997-04-29 1998-11-04 Richard Lloyd Limited Tap tools
WO2002076661A1 (fr) * 2001-03-22 2002-10-03 Johne + Co. Präzisionswerkzeuge Gmbh Outil et ensemble outil
DE10338754A1 (de) * 2003-08-23 2005-03-24 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Werkzeug zur spanlosen Erzeugung eines Gewindes und Verfahren zur Herstellung eines Werkzeugs zur spanlosen Gewindeerzeugung

Also Published As

Publication number Publication date
US20090005185A1 (en) 2009-01-01
DE102005062519A1 (de) 2007-06-21
EP1960146A1 (fr) 2008-08-27

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