FR2623114A2 - Tap with improved guidance - Google Patents

Tap with improved guidance Download PDF

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Publication number
FR2623114A2
FR2623114A2 FR8715661A FR8715661A FR2623114A2 FR 2623114 A2 FR2623114 A2 FR 2623114A2 FR 8715661 A FR8715661 A FR 8715661A FR 8715661 A FR8715661 A FR 8715661A FR 2623114 A2 FR2623114 A2 FR 2623114A2
Authority
FR
France
Prior art keywords
tap
counter
calibration
point
comb
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.)
Pending
Application number
FR8715661A
Other languages
French (fr)
Inventor
Pierre Claverie
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.)
RINEAU FRERES OUTILLAGE ARMOR
Original Assignee
RINEAU FRERES OUTILLAGE ARMOR
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 RINEAU FRERES OUTILLAGE ARMOR filed Critical RINEAU FRERES OUTILLAGE ARMOR
Priority to FR8715661A priority Critical patent/FR2623114A2/en
Priority to DE8888400652T priority patent/DE3864058D1/en
Priority to EP19880400652 priority patent/EP0286485B1/en
Publication of FR2623114A2 publication Critical patent/FR2623114A2/en
Pending legal-status Critical Current

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
    • B23G5/00—Thread-cutting tools; Die-heads
    • B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06—Taps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)

Abstract

Tap having a counter undercut on the thickness of the chasers to give better guidance.

Description

Le brevet principal et l'additif NO f prévoient de réaliser sur la " longueur filetée l " des contre-détalonrages " m 1 " à proximité de la face de coupe " et " m 2 " à proximité du " talon " dans des parties du filetage qui ont un rle de guidage pour gérer des zones-de frottement. The main patent and the additive NO f provide for carrying out counter-calibrations on the "threaded length l" "m 1" near the cutting face "and" m 2 "near the" heel "in parts of the threads which have a guiding role to manage zones of friction.

L'addition NO 2, décrite cidessous, a pour but d'étendre l'amélioration de l'effet auto-guidage en prévoyant de réaliser le ou les contredétalonnages en un endroit quelconque du peigne " P " - La figure 1-2 montre un contre-détalonnage " m 3 " réalisé vers le milieu du peigne. On peut envisager de créer sur un peigne plusieurs contre-détalonnages de type " m 3
Les contre-détalonnages " m 3 " peuvent être réalisés sur une portion quelconque ou sur la totalité du profil des filets du taraud, sur une portion quelconque ou sur la totalité de la longueur filetée " l ",sur un nombre quelconque ou sur la totalité des peignes du taraud.The addition NO 2, described below, is intended to extend the improvement of the self-guiding effect by providing for carrying out the counter-calibration (s) at any point of the comb "P" - Figure 1-2 shows a "m 3" counter-calibration performed towards the middle of the comb. We can consider creating on a comb several "m 3" counter-calibrations
The "m 3" counter-calibrations can be carried out on any portion or on the entire profile of the threads of the tap, on any portion or over the entire threaded length "l", on any number or all tap combs.

La réalisation du cor.tre-détalonnage dans la partie centrale du peigne crée une zone de frottement en A' . La distance OA' peut etre maftrisêe puur être égale, plus grande ou plus petite que OA. Le point A peut entre un point de frottement ou un point de coupe. Dans la théorie il suffit de créer en A' un point de frottement sur le même # que A. Dans la pratique, les parties coupantes d'un taraud réalisent un taraudage légèrement différent du diamètre du taraud. La différence peut être négative ou positive. Le diamètre du point de frottement A' peut etre supérieur à celui du point A ; sa détermination est du ressort de l'expérience de l inventeur ; toutes les valeurs possibles font partie de l'invention. The realization of the cor.tre-calibration in the central part of the comb creates a friction zone in A '. The distance OA 'can be maftrisêe can be equal, greater or less than OA. Point A can be between a friction point or a cutting point. In theory, it suffices to create a friction point at A 'on the same # as A. In practice, the cutting parts of a tap tap slightly different from the diameter of the tap. The difference can be negative or positive. The diameter of the friction point A 'can be greater than that of the point A; its determination is a matter for the experience of the inventor; all possible values are part of the invention.

La réalisation du contre-détalonnage dans la partie centrale du peigne peut être grandement favorisée par un dégagement G qui constitue en plus une réserve de lubrifiant ( fig. 2-2 j. Cette opération fait partie de l'invention, que le contre-détalonnage soit réalisé sur tout ou partie du profil des filets du taraud, sur tout ou partie de la longueur filetée, sur un nombre quelconque ou sur la totalité des peignes du taraud. The realization of counter-calibration in the central part of the comb can be greatly helped by a clearance G which also constitutes a reserve of lubricant (fig. 2-2 j. This operation is part of the invention, that counter-calibration is carried out on all or part of the profile of the threads of the tap, on all or part of the threaded length, on any number or on all of the combs of the tap.

Dans une configuration particulière le dégagement G peut être une ou plusieurs des goujures du taraud. In a particular configuration, the clearance G may be one or more of the flutes of the tap.

Claims (1)

REVENDICATION 1- Taraud travaillant par enlèvement de métal suivant la revendication n0 t du brevet principal caractérisé en ce qu'il comporte un contre#détalonnage " m 3 " positionné en un point quelconque sur l'épaisseur du peigne P pour créer en A' une zone de frottement qui peut faire office de patronne. Le contre~ détalonnage peut être réalisé sur une portion quelconque de la partie filetée du taraud.  CLAIM 1- Tap working by removing metal according to claim n0 t of the main patent characterized in that it comprises a counter # calibration "m 3" positioned at any point on the thickness of the comb P to create at A 'a friction zone which can act as a patron. The counter calibration can be carried out on any portion of the threaded part of the tap.
FR8715661A 1987-03-20 1987-11-13 Tap with improved guidance Pending FR2623114A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8715661A FR2623114A2 (en) 1987-11-13 1987-11-13 Tap with improved guidance
DE8888400652T DE3864058D1 (en) 1987-03-20 1988-03-18 TAP DRILL.
EP19880400652 EP0286485B1 (en) 1987-03-20 1988-03-18 Thread-cutting taps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8715661A FR2623114A2 (en) 1987-11-13 1987-11-13 Tap with improved guidance

Publications (1)

Publication Number Publication Date
FR2623114A2 true FR2623114A2 (en) 1989-05-19

Family

ID=9356728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8715661A Pending FR2623114A2 (en) 1987-03-20 1987-11-13 Tap with improved guidance

Country Status (1)

Country Link
FR (1) FR2623114A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155979A1 (en) * 2001-11-14 2003-05-22 Sandvik Ab Thread cutting tool has groups of teeth which have at least in part a radial under cut section on free surface behind cutting edge for longer service life
US20130236260A1 (en) * 2012-03-07 2013-09-12 Kennametal Inc. Chip-resistant cutting tap
US20150375356A1 (en) * 2013-02-18 2015-12-31 Kennametal Incl Method for producing an axially extending tool tip and tool tip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132151C (en) *
FR692457A (en) * 1929-06-19 1930-11-06 Cie Europ Des Metaux Improvements to taps
FR735564A (en) * 1932-04-19 1932-11-10 Method and device for manufacturing cylindrical-conical nuts
US1908575A (en) * 1930-11-11 1933-05-09 Tucker Gilmore Mfg Company Tap
DE1120845B (en) * 1957-08-01 1961-12-28 Rolf Lieb Thread cutting tool with a conically ground thread
US3113330A (en) * 1960-06-27 1963-12-10 Vermont American Corp Tap having a leading rough cutting portion followed by a finish cutting portion on each cutting tooth

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE132151C (en) *
FR692457A (en) * 1929-06-19 1930-11-06 Cie Europ Des Metaux Improvements to taps
US1908575A (en) * 1930-11-11 1933-05-09 Tucker Gilmore Mfg Company Tap
FR735564A (en) * 1932-04-19 1932-11-10 Method and device for manufacturing cylindrical-conical nuts
DE1120845B (en) * 1957-08-01 1961-12-28 Rolf Lieb Thread cutting tool with a conically ground thread
US3113330A (en) * 1960-06-27 1963-12-10 Vermont American Corp Tap having a leading rough cutting portion followed by a finish cutting portion on each cutting tooth

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155979A1 (en) * 2001-11-14 2003-05-22 Sandvik Ab Thread cutting tool has groups of teeth which have at least in part a radial under cut section on free surface behind cutting edge for longer service life
EP1314506A2 (en) * 2001-11-14 2003-05-28 Sandvik AB Thread cutting tool
EP1314506A3 (en) * 2001-11-14 2004-03-24 Sandvik AB Thread cutting tool
US6918718B2 (en) 2001-11-14 2005-07-19 Sandvik Ab Thread cutting tool having cutting teeth with stepped undercut flanks
CN100379514C (en) * 2001-11-14 2008-04-09 山特维克知识产权股份公司 Thread cutting tool
US20130236260A1 (en) * 2012-03-07 2013-09-12 Kennametal Inc. Chip-resistant cutting tap
US9011050B2 (en) * 2012-03-07 2015-04-21 Kennametal Inc Chip-resistant cutting tap
US20150375356A1 (en) * 2013-02-18 2015-12-31 Kennametal Incl Method for producing an axially extending tool tip and tool tip
US10144104B2 (en) * 2013-02-18 2018-12-04 Kennametal Inc. Method for producing an axially extending tool tip and tool tip

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