FR2731375A1 - Tap carrier for forming thread in metal pieces - Google Patents

Tap carrier for forming thread in metal pieces Download PDF

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Publication number
FR2731375A1
FR2731375A1 FR9502836A FR9502836A FR2731375A1 FR 2731375 A1 FR2731375 A1 FR 2731375A1 FR 9502836 A FR9502836 A FR 9502836A FR 9502836 A FR9502836 A FR 9502836A FR 2731375 A1 FR2731375 A1 FR 2731375A1
Authority
FR
France
Prior art keywords
tap
drill
metal pieces
tapping
mandrel
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.)
Granted
Application number
FR9502836A
Other languages
French (fr)
Other versions
FR2731375B1 (en
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.)
SERRA LOUIS
Original Assignee
SERRA LOUIS
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 SERRA LOUIS filed Critical SERRA LOUIS
Priority to FR9502836A priority Critical patent/FR2731375B1/en
Publication of FR2731375A1 publication Critical patent/FR2731375A1/en
Application granted granted Critical
Publication of FR2731375B1 publication Critical patent/FR2731375B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
    • B23G1/48—Equipment or accessories specially designed for machines or devices for thread cutting for guiding the threading tools
    • 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
    • B23G2210/00—Details of threads produced
    • B23G2210/04—Internal threads
    • 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
    • B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
    • B23G2240/20—Guiding devices with a pin affixable in a drilling chuck and with free rotation of the threading tool holder with respect to the pin

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blast Furnaces (AREA)

Abstract

The carrier comprises a smooth fixing rod (C) which replaces the drill bit in the drill mandrel (B). The tap (D) which is fixed in the mandrel (E) of the tap carrier is automatically housed coaxially in the rough hole (A) by simply lowering the drill mandrel. The driving bar (F) obtains a tapping without inlet burrs and without risk of breaking.

Description

La présente invention concerne un porte-taraud destiné à effectuer à la main un filetage sur toute pièce métallique ayant fait l'objet d'une ébauche de perçage sur une machine à percer.The present invention relates to a tap holder intended to perform by hand threading on any metal part which has been the subject of a drilling blank on a drilling machine.

Le taraudage à train est effectué jusqu là présent au moyen d'un outil manuel appelé généralement tourne à gauche".The tapping with train is carried out until now by means of a manual tool called generally turns to the left ".

L'utilisateur doit, après avoir percé un trou A grâce à une perceuse B, écarter la perceuse, prendre un tourne à gauche, y fixer un taraud et positionner ce dernier visuellement en face du trou en essayant de s'assurer que le taraud soit bien vertical et dans l'axe du trou.The user must, after having drilled a hole A using a drill B, move aside the drill, take a turn to the left, attach a tap to it and position it visually in front of the hole, trying to make sure that the tap is vertical and in line with the hole.

Cette opération délicate et difficile est souvent la conséquence d'un taraudage laissant les premiers filets "en cloche" et entraine un risque de casse très gênant lorsque l'extrémité du taraud brisé est coincéedans le trou.This delicate and difficult operation is often the consequence of tapping leaving the first threads "bell" and entails a risk of very annoying breakage when the end of the broken tap is stuck in the hole.

Le porte taraud pour lequel un brevet est demandé n'exige aucune formation technique pour l'utilisateur.The tap holder for which a patent is applied for does not require any technical training for the user.

La tige supérieure "C" du porte taraud prendra la place du foret "H" que l'on aura retiré de la perceuse "D". The upper rod "C" of the tap holder will take the place of the drill bit "H" which will have been removed from the drill "D".

Le taraud "D" fixé dans le mandrin "E" du porte taraud viendra se loger automatiquement dans l'ébauche du trou "A" avec une parfaite co-axialité, en abaissant simplement le mandrin de la perceuse.The tap "D" fixed in the chuck "E" of the tap holder will be automatically housed in the blank of the hole "A" with perfect co-axiality, by simply lowering the chuck of the drill.

Il n'y a plus qu'à manoeuvrer le taraud en tournant à la main, librement, la barre d'entrainement "F" pour obtenir un taraudage sans bavures d'entrée et sans risque de casse.All you have to do is operate the tap by freely turning the drive bar "F" by hand to obtain tapping without entry burrs and without risk of breakage.

Ce système est destiné uniquement au taraudage à main et ntest pas conçu pour les machines à tarauder.This system is intended for hand tapping only and is not designed for tapping machines.

11 sera utile à tous ceux qui ne peuvent pas utiliser de machines automatiques à tarauder (petits mécaniciens, services d'entretien, garagistes, réparateurs, fabricants de petites séries). It will be useful for all those who cannot use automatic tapping machines (small mechanics, maintenance services, garage owners, repairers, manufacturers of small series).

La figure "1" montre le mandrin de perçage 2tE" avec le foret "H" qui percera le trou "A" à tarauder.Figure "1" shows the drill chuck 2tE "with the bit" H "which will drill the hole" A "to be tapped.

La figure "2" montre l'ensemble du porte-taraud pour lequel le brevet est demandé, fixé dans le mandrin de perçage par la tige lisse "C" qui a pris la place du foret "H". Figure "2" shows the assembly of the tap holder for which the patent is requested, fixed in the drilling mandrel by the smooth rod "C" which has taken the place of the drill bit "H".

Le porte-taraud comprend
une tige de fixation lisse destinée à prendre la place du
foret dans le mandrin de la perceuse
un mandrin de taraudage tournant librement de façon à
pouvoir assurer la rotation du taraud sans bouger la tige
de fixation
un ensemble destiné à pouvoir s'abaisser dans l'ébauche
du trou effectué par la perceuse, sans déplacer la pièce à
usiner. The tap holder includes
a smooth fixing rod intended to take the place of the
drill bit in the drill chuck
a freely rotating tapping chuck so that
ability to rotate tap without moving rod
of fixation
an assembly intended to be able to lower itself into the blank
of the hole made by the drill, without moving the workpiece
to machine.

Claims (1)

REVENDICATION CLAIM Ce porte-taraud est caractérisé en ce qu'il comprendThis tap holder is characterized in that it comprises une tige de fixation lisse destinée à prendre la place du a smooth fixing rod intended to take the place of the foret dans le mandrin de la perceuse drill bit in the drill chuck un mandrin de taraudage tournant librement de façon à a freely rotating tapping chuck so that pouvoir assurer la rotation du taraud sans bouger la tige ability to rotate tap without moving rod de fixation of fixation un ensemble destiné à pouvoir s'abaisser dans l'ébauche an assembly intended to be able to lower itself into the blank du trou effectué par la perceuse, sans déplacer la pièce à of the hole made by the drill, without moving the workpiece usiner.  to machine.
FR9502836A 1995-03-10 1995-03-10 TAPPING MACHINE Expired - Fee Related FR2731375B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9502836A FR2731375B1 (en) 1995-03-10 1995-03-10 TAPPING MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9502836A FR2731375B1 (en) 1995-03-10 1995-03-10 TAPPING MACHINE

Publications (2)

Publication Number Publication Date
FR2731375A1 true FR2731375A1 (en) 1996-09-13
FR2731375B1 FR2731375B1 (en) 1997-04-30

Family

ID=9476940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9502836A Expired - Fee Related FR2731375B1 (en) 1995-03-10 1995-03-10 TAPPING MACHINE

Country Status (1)

Country Link
FR (1) FR2731375B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465541A (en) * 1947-03-12 1949-03-29 Anthony J Kreshock Tapping accessory for drill presses
US3364510A (en) * 1965-08-18 1968-01-23 Johnson Mfg Drill press tap attachment
GB2040765A (en) * 1979-01-26 1980-09-03 Rational Designs & Tech Ltd Tap guide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465541A (en) * 1947-03-12 1949-03-29 Anthony J Kreshock Tapping accessory for drill presses
US3364510A (en) * 1965-08-18 1968-01-23 Johnson Mfg Drill press tap attachment
GB2040765A (en) * 1979-01-26 1980-09-03 Rational Designs & Tech Ltd Tap guide

Also Published As

Publication number Publication date
FR2731375B1 (en) 1997-04-30

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