EP0504995B1 - Mâchoires d'appointage par pincement - Google Patents

Mâchoires d'appointage par pincement Download PDF

Info

Publication number
EP0504995B1
EP0504995B1 EP92200724A EP92200724A EP0504995B1 EP 0504995 B1 EP0504995 B1 EP 0504995B1 EP 92200724 A EP92200724 A EP 92200724A EP 92200724 A EP92200724 A EP 92200724A EP 0504995 B1 EP0504995 B1 EP 0504995B1
Authority
EP
European Patent Office
Prior art keywords
insert
pinch
base body
pointing
jaws
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 - Lifetime
Application number
EP92200724A
Other languages
German (de)
English (en)
Other versions
EP0504995A1 (fr
Inventor
Reinhard Posch
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.)
Plansee Tizit AG
Original Assignee
Plansee Tizit AG
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 Plansee Tizit AG filed Critical Plansee Tizit AG
Publication of EP0504995A1 publication Critical patent/EP0504995A1/fr
Application granted granted Critical
Publication of EP0504995B1 publication Critical patent/EP0504995B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G3/00—Making pins, nails, or the like
    • B21G3/16—Pointing; with or without cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings
    • 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
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements

Definitions

  • the invention relates to a lasting jaw for machines for nail production, consisting of an elongated, prism-shaped base body with a trapezoidal cross section, one end of which has an exchangeable prismatic insert made of wear-resistant material, which is provided on at least one side surface with a lasting profile for shaping and separating the nail end.
  • Such jaws are used in pairs in machines in which wire is formed into nails. They are arranged there so that the lasting profiles of the lasting jaws lie opposite one another. In the course of the workflow, the lasting jaws are brought together and opened. When the jaws are brought together, the tip of the nail is first molded on and then the nail is pinched off to the desired nail length. The specially designed pinch profile of the pinch jaws results in a reshaping and a cutting operation.
  • the pinch jaws were previously largely made of steel. However, due to the limited wear resistance of steel, they only have a limited service life. If the wear of the lasting profile is inadmissibly high, the lasting jaws must be replaced.
  • DE-OS 28 20 259 describes a machine for nail production, in which the lasting jaws have an insert made of wear-resistant material at one end.
  • the insert is provided on the front with a lasting profile for forming and separating the nail and clamped in a recess in the lasting jaw with a screw and a wedge-shaped clamping piece.
  • a nail beating jaw for shaping the nail head is known.
  • One end of the base body is slotted and provided with a recess which serves to receive an essentially cylindrical insert made of wear-resistant material with a plurality of clamping grooves in the lateral surface.
  • the insert is clamped in the base body by means of a tensioning screw passing through the slot.
  • the invention has for its object to provide a lasting jaw for machines for nail production with an interchangeable insert made of wear-resistant material, which allows a simpler and more space-saving clamping of the insert on the base body compared to known designs and also a clamping of inserts with a lasting profile on all side surfaces allowed.
  • the insert is arranged in an end-side recess of the base body, with lateral and / or rear contact surfaces and with a support surface inclined at an angle between 10 ° and 30 ° to the base surface of the base body, and via a bore penetrating the insert can be screwed to the base body.
  • the insert made of wear-resistant material can be specifically dimensioned small and can be provided with one or more lasting profiles that can be used one after the other.
  • the price / performance ratio compared to pinch jaws with a soldered hard metal end is much cheaper.
  • the special mounting and attachment of the insert ensures that the production is only briefly interrupted when replacing or moving the insert and that no new readjustment or adjustment work is required.
  • the changeover to other nail profiles is only possible in large areas by changing the insert, without having to replace the base body of the lasting jaws.
  • the basic bodies themselves are practically not subject to wear and can therefore be used over a very long period. Even if the insert is destroyed prematurely due to poor adjustment or improper operation, the base body is generally not damaged.
  • the insert made of wear-resistant material is well supported by the base body, so that the forces occurring when the nail tip is formed and when the nail is pinched off are fully absorbed by the base body without the fastening screw being loaded.
  • the screw can therefore be dimensioned small and is only used for positioning and holding the insert in the recess.
  • An inclination of the support surface for use in relation to the base surface of the base body in the range of approximately 20 ° has proven particularly advantageous for the lasting jaws according to the invention.
  • the insert is screwed to the base body by means of a countersunk screw, the axis of the threaded bore in the base body and the axis of the counterbore in use being offset from one another by a distance in the longitudinal direction of the base body, so that use in Tightening the screw against the support surface and at the same time against the rear (s) contact surface (s) of the recess of the base body is pressed.
  • the insert is only provided with a lasting profile, it has proven useful to design the insert with a cuboid basic shape and to provide the rear surface opposite the end profile incorporated in the front with strongly rounded side edges. This ensures a particularly advantageous production of the insert without the safe contact and support of the insert being adversely affected in the recess in the base body.
  • the insert can be implemented multiple times, a truncated-tetrahedral or truncated-pyramid shape with gusset profiles incorporated into the side surfaces has proven particularly useful. This means that the assignment can be implemented twice or three times after the first use.
  • Hard metal is particularly suitable as a material for use from wear-resistant material, but the use of other wear-resistant materials cannot be ruled out.
  • Figures 1-3 show a lasting jaw according to the invention, made of an elongated, prism-shaped base body -1- made of steel.
  • the side surfaces of the base body -1- are inclined 10 ° or 15 ° to each other, depending on the machine type in which the jaws are used, so that the base body -1-has a trapezoidal cross section.
  • the base body -1- has an oblique flattening with a recess -6- for receiving a cuboid insert -3- made of hard metal, which can be screwed to the base body -1-.
  • the recess -6- has two lateral contact surfaces which run parallel in the longitudinal direction of the base body -1- and which are connected to one another by a rear contact surface.
  • the base-side support surface is inclined at an angle ⁇ of 20 ° to the base of the base body -1-, which ensures good support of the insert -3-by the base body -1-.
  • the recess -6- is somewhat shorter than the length of the insert -3-, so that it protrudes slightly on the end face of the base body -1-.
  • a threaded hole -7- is made in the base body -1- perpendicular to the support surface for screwing the hard metal insert -3-.
  • the lasting profile -4- is introduced on the end face of the hard metal insert -3-.
  • the special design of the lasting profile -4- allows the nail tip to be formed in one operation when the lasting jaws are brought together and at the same time the pinched material and the nail end are pinched off the wire.
  • the hard metal insert -3- is provided with a countersunk hole -5- for connection to the base body -1- by means of a fastening screw -2-.
  • the back surface opposite the lasting profile -4- has strongly rounded side edges.
  • the axis of the threaded bore -7- in the base body -1- and the axis of the countersunk bore -5- in the hard metal insert -3- are offset in the longitudinal direction of the base body -1- by a distance -d- so that when the fastening screw is tightened -2- there is a surface pressure between the bottom surface of the hard metal insert -3- and the contact surface in the recess -6- and at the same time the insert -3- is pressed against the rear contact surface of the recess -6-.
  • Figure 4 shows the variant of a hard metal insert -3- which can be used several times.
  • the insert -3- has the basic shape of a tetrahedral stump.
  • a lasting profile -4- is introduced into each of the three lateral surfaces.
  • the insert -3- can be used three times.
  • Due to the tetrahedron-shaped basic shape of the insert -3-, the correspondingly adapted recess -6- in the base body -1- of the jaws suitable for such an insert -3- has two rear contact surfaces running at an angle of 60 °.
  • the working pressure acting on these contact surfaces counteracts the notch effect occurring in the pinch profile -4- of the insert, as a result of which this type of insert -3- can also withstand higher loads.
  • FIG. 5 shows another embodiment of a reusable hard metal insert -3-.
  • This insert -3- has the basic shape of a truncated pyramid.
  • a lasting profile -4- is introduced into each of the four lateral surfaces, which enables the insert -3- to be used four times.
  • Corresponding baffles on the lasting profile -4- are used to support the insert -3- on the rear contact surface of the correspondingly adapted recess -6- of the associated base body -1- of the lasting jaw, which at the same time largely prevent the direct collision of the cutting edges even when improperly adjusted.
  • Such a design of a hard metal insert -3- is particularly suitable for smaller machines for the production of smaller nail types, where lower loads occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Table Equipment (AREA)
  • Liquid Crystal (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Glass Compositions (AREA)

Claims (7)

  1. Mâchoires d'appointage pour machines de fabrication de clous, se composant d'un corps de base allongé (1), de forme prismatique, à section transversale trapézoïdale, dont une première extrémité comporte un insert prismatique interchangeable en matière résistant à l'usure, qui est pourvu au moins sur une surface latérale d'un profil d'appointage pour le formage et la séparation de l'extrémité du clou,
       caractérisées en ce que
       l'insert est disposé dans un évidement (6) du côté frontal du corps de base (1), à surfaces d'appui latérale et/ou arrière et à surface de support inclinée d'un angle compris entre 10° et 30° par rapport à la surface inférieure du corps de base (1) et peut être vissé au corps de base (1) au moyen d'un alésage traversant l'insert.
  2. Mâchoires d'appointage pour machines de fabrication de clous selon la revendication 1, caractérisées en ce que la surface de support de l'insert est d'un trace incline d'un angle (α) d'environ 20° par rapport à la surface inférieure du corps de base (1).
  3. Mâchoires d'appointage pour machines de fabrication de clous selon la revendication 1 ou 2, caractérisées en ce que le vissage de l'insert (3) sur le corps de base (1) s'effectue au moyen d'une vis (2) à tête fraisée, l'axe de l'alésage fileté (7) ménagé dans le corps de base (1) et l'axe de l'alésage de fraisage (5) ménagé dans l'insert (3) étant décalés l'un par rapport à l'autre dans la direction longitudinale du corps de base (1) d'une distance (d) telle que l'insert (3) est comprime, lors du serrage de la vis (2), contre la ou les surface(s) arrière d'appui de l'évidement (6) du corps de base (1).
  4. Insert (3) pour une mâchoire d'appointage pour machines de fabrication de clous selon l'une des revendications 1 à 3, caractérisé en ce qu'il comporte une forme de base sensiblement rectangulaire à surface frontale et surface arrière inclinées, le profil d'appointage (4) étant usiné dans le côté frontal et les arêtes latérales étant arrondies sur la surface arrière.
  5. Insert (3) pour une mâchoire d'appointage pour machines de fabrication de clous selon l'une des revendications 1 à 3, caractérisé en ce qu'il présente la forme d'un tronc de tétraèdre et en ce que chacune des trois surfaces latérales est pourvue d'un profil d'appointage (4).
  6. Insert (3) pour une mâchoire d'appointage pour machines de fabrication de clous selon l'une des revendications 1 à 3, caractérisé en ce qu'il présente la forme d'un tronc de pyramide et en ce que chacune des quatre surfaces latérales est pourvue d'un profil d'appointage (4).
  7. Insert (3) pour une mâchoire d'appointage pour machines de fabrication de clous selon l'une des revendications 4 à 6, caractérisé en ce qu'il est en métal dur.
EP92200724A 1991-03-20 1992-03-13 Mâchoires d'appointage par pincement Expired - Lifetime EP0504995B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT618/91 1991-03-20
AT0061891A AT397218B (de) 1991-03-20 1991-03-20 Zwickbacken

Publications (2)

Publication Number Publication Date
EP0504995A1 EP0504995A1 (fr) 1992-09-23
EP0504995B1 true EP0504995B1 (fr) 1994-09-28

Family

ID=3495359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92200724A Expired - Lifetime EP0504995B1 (fr) 1991-03-20 1992-03-13 Mâchoires d'appointage par pincement

Country Status (5)

Country Link
EP (1) EP0504995B1 (fr)
AT (2) AT397218B (fr)
DE (1) DE59200553D1 (fr)
DK (1) DK0504995T3 (fr)
ES (1) ES2062861T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004846B2 (en) 2001-08-13 2006-02-28 Kennametal Inc. Wear resistant nail manufacturing tool inserts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA05012174A (es) * 2003-05-14 2006-02-08 Enkotec As Inhibicion de fatiga metalica en una herramienta asegurada en una mordaza.
DE102016014588A1 (de) * 2016-12-08 2018-06-14 Unotech Gmbh Drahtumlenkung mit Hartmetalleinsatz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD40525A (fr) *
US3815166A (en) * 1972-10-05 1974-06-11 Illinois Tool Works Die holder assembly
JPS53137859A (en) * 1977-05-09 1978-12-01 Kameo Doi Pinch pointing device
US4150451A (en) * 1978-03-01 1979-04-24 Usm Corporation Die holder assembly
AT392028B (de) * 1989-06-09 1991-01-10 Plansee Tizit Gmbh Nagelschlagbacken
SE467530B (sv) * 1989-06-30 1992-08-03 Haamex Haardmetallverktyg Ab Klaemback foer spiktillverkning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004846B2 (en) 2001-08-13 2006-02-28 Kennametal Inc. Wear resistant nail manufacturing tool inserts

Also Published As

Publication number Publication date
EP0504995A1 (fr) 1992-09-23
ES2062861T3 (es) 1994-12-16
ATE112194T1 (de) 1994-10-15
AT397218B (de) 1994-02-25
DE59200553D1 (de) 1994-11-03
ATA61891A (de) 1993-07-15
DK0504995T3 (da) 1995-04-10

Similar Documents

Publication Publication Date Title
DE2339873C2 (de) Anordnung zum Einstellen und Befestigen eines ein Schneidplättchen tragenden Blocks in einer nutförmigen Aufnahme im Werkzeugkörper eines spanabhebenden Werkzeugs
DE2918243C2 (de) Ausdrehkopf
DE2652153C2 (fr)
CH616611A5 (fr)
DE4322402C2 (de) Schneidkörper für eine Schrämmaschine
EP2724817A1 (fr) Mâchoire de serrage ou élément de serrage
DE2622112C2 (de) Werkzeughalter
DE1602795C3 (de) Schneidkörper und zugehöriger Halter
DE2522565B2 (de) Tiefbohrwerkzeug
EP1468758B1 (fr) Matrice pour jeu d'outils pour réaliser des joints mécaniques
DE2904468C2 (fr)
EP0559965B1 (fr) Outil de décolletage
EP0504995B1 (fr) Mâchoires d'appointage par pincement
DE102005032761A1 (de) Messerkopf
DE3935651A1 (de) Werkzeugvorrichtung
DE2542346C3 (de) Innenräumwerkzeug, insbesondere zur Herstellung von Profilnuten
EP0362753A1 (fr) Dispositif de fixation
EP0401918B1 (fr) Mâchoires de serrage pour machines de fabrication de clous
CH665790A5 (de) Bohrer.
DE102004008166A1 (de) Werkzeug zur spanenden Bearbeitung von Präzisionsbohrungen
EP0175011A1 (fr) Outil de coupe rotatif en particulier tête de foreuse
DE2106854A1 (de) Werkzeugstahlhalter
EP3311943B1 (fr) Ébauche destinée à fabriquer un foret de forme, et foret de forme
DE2263634C3 (de) Werkzeug zum gleichzeitigen Bearbeiten der Flanken von Nuten
DE1914721A1 (de) Mehrgliedriges Raeumwerkzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920610

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE DK ES FR GB IT SE

17Q First examination report despatched

Effective date: 19940303

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE DK ES FR GB IT SE

REF Corresponds to:

Ref document number: 112194

Country of ref document: AT

Date of ref document: 19941015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59200553

Country of ref document: DE

Date of ref document: 19941103

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2062861

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
EAL Se: european patent in force in sweden

Ref document number: 92200724.0

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20110315

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110404

Year of fee payment: 20

Ref country code: AT

Payment date: 20110314

Year of fee payment: 20

Ref country code: SE

Payment date: 20110314

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20110325

Year of fee payment: 20

Ref country code: GB

Payment date: 20110321

Year of fee payment: 20

Ref country code: BE

Payment date: 20110311

Year of fee payment: 20

Ref country code: DE

Payment date: 20110325

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110329

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59200553

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59200553

Country of ref document: DE

BE20 Be: patent expired

Owner name: *PLANSEE TIZIT G.M.B.H.

Effective date: 20120313

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20120312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120312

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 112194

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120313

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140827

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120314