EP0870558A2 - Verschleissfester Werkzeugeinsatz - Google Patents
Verschleissfester Werkzeugeinsatz Download PDFInfo
- Publication number
- EP0870558A2 EP0870558A2 EP98201082A EP98201082A EP0870558A2 EP 0870558 A2 EP0870558 A2 EP 0870558A2 EP 98201082 A EP98201082 A EP 98201082A EP 98201082 A EP98201082 A EP 98201082A EP 0870558 A2 EP0870558 A2 EP 0870558A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wear
- tool insert
- insert
- resistant
- tool
- 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
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- B21G3/12—Upsetting; Forming heads
-
- 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
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/28—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 by forging or pressing
Definitions
- the invention relates to a wear-resistant tool insert for machines for the production of nails, screws, rivets and the like wire-shaped starting material.
- Such tool inserts are so-called striking or clamping jaws as well as lasting jaws, which are used in pairs in the machine.
- the jaws are often implemented and exchangeable Inserts in tool holders usually in the form of elongated, prismatic bodies with trapezoidal cross section in corresponding recesses of this tool holder used and clamped.
- the clamping jaws have one or several clamping grooves for clamping the supplied wire and one Recess to form the desired head shape of the one to be produced Part on. They are arranged in the machine so that the clamping grooves of the inserts used in pairs. In the course of Workflow, the jaws are closed or opened. in the the inserted wire is closed by the tension grooves clamped.
- the head of the nails Bolts or rivets upset.
- the clamping grooves are preferably with semicircular transverse grooves profiled.
- the part is closed by closing two opposite jaws cut to length.
- the pinch cheeks are also clamped in tool holders or directly in the machine. she have a symmetrical profile with several cutting edges, through which on the one hand the end of the finished part is molded and the part is cut to length and on the other hand, the initial geometry for the formation of the head of the next part is molded.
- the two-wire version enables the simultaneous production of two Nails, screws or rivets, i.e. a doubling of the Production output.
- the lasting jaws are usually only single-core executed so that four in connection with two-core jaws Pinches are used.
- the tool inserts are widely used to reduce wear Carbide made. Is the wear of the clamping grooves or the cutting edges the stakes must be replaced.
- hard metal and other hard, wear-resistant materials have very high hardness and thus high wear resistance, but are only moderately resilient with regard to tensile and bending stresses. Due to irregularities in the wire quality with regard to fluctuating dimensions or different strengths, the manufacture of the nails, screws or rivets can lead to very high tensile loads and thus excessive stresses on the inserts made of wear-resistant material, which is often associated with a breakage of the inserts.
- the invention has for its object wear-resistant tool inserts for machines for the production of nails, screws, rivets and the like create an inadmissible compared to known designs Overstraining due to excessive tensile stresses and therefore premature Breaking is avoided.
- the individual parts are by a Rivet or screw connection connected.
- the individual parts of the tool insert via the tool holder or the machine part in which it is inserted are pressed together.
- the individual parts protrude an at least partially serrated surface in connection.
- Connecting elements such as screws or rivets, for connecting the individual parts are provided.
- Carbide is a particularly advantageous material for tool use used.
- Figure shows a nail beating jaw, consisting of an elongated, prism-shaped body -1- with one in a recess interchangeable, cube-shaped, inventive Insert -2- made of hard metal on one end.
- the basic body is -1- starting from the recess for use in the middle in the longitudinal direction Slot introduced.
- the base body -1- is transverse to this slot
- Clamping screw -7- passes through which through the slot spaced sections of the base body -1- contracted and thus insert -2- is clamped in the recess.
- the insert -2- points in a clamping groove -3- with transverse grooves -8- on its front surface the inserted wire for nail production is clamped.
- the use -2- is designed symmetrically divided in the longitudinal direction of the clamping groove -3-. Through the the clamping force acting from the base body -1- onto the insert -2- becomes the two Parts pressed together. To improve mutual interlocking of the two parts have the interconnected surfaces a sawtooth profile -6-.
- FIGS. 2 and 3 show the variant of an insert according to the invention -2- shown.
- the cube-shaped insert -2- points to two opposite Shell surfaces each two parallel and symmetrical to each other Clamping grooves -3-.
- the insert -2- is two in the longitudinal direction opposite clamping grooves -3- split. Cross to the Insert -2-, the insert is pierced in the center. With a rivet -5- they are three parts of the insert joined together.
- Figures 4 to 6 show an insert according to the invention -9- for one Pinch jaws for the production of nails with a symmetrical profile in the longitudinal direction of the wire to be cut.
- the wire is centered and through the central cutting edge -10- cut off.
- the side cutting edges -11- on the one hand the end of the finished part and on the other hand the initial shape of the next Part molded to form the final head shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Forging (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
Aufgrund von Unregelmäßigkeiten in der Drahtqualität hinsichtlich schwankender Abmessungen oder unterschiedlicher Festigkeiten kann es bei der Herstellung der Nägel, Schrauben oder Nieten zu sehr hohen Zugbeanspruchungen und damit Überbeanspruchungen der Einsätze aus verschleißfestem Material kommen, was vielfach mit einem Bruch der Einsätze verbunden ist.
- Figur 1
- einen Schlagbacken zur Herstellung von Nägeln mit einem erfindungsgemäßen Werkzeugeinsatz in Schrägansicht
- Figur 2
- die Variante eines erfindungsgemäßen Werkzeugeinsatzes für einen Nagelschlagbacken in Draufsicht
- Figur 3
- den Einsatz nach Figur 2 in Seitenansicht, teilweise geschnitten
- Figur 4 - 6
- einen erfindungsgemäßen Werkzeugeinsatz für einen Zwickbacken für die Nagelherstellung in Stirn-, Seiten-und Schrägansicht
Claims (5)
- Verschleißfester Werkzeugeinsatz für Maschinen zur Herstellung von Nägeln, Schrauben, Nieten und dergleichen aus drahtförmigem Ausgangsmaterial,
dadurch gekennzeichnet,
daß der Werkzeugeinsatz in Axialrichtung des zugeführten Drahtes geteilt ausgeführt ist. - Verschleißfester Werkzeugeinsatz nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Teile des Werkzeugeinsatzes durch eine Niet- oder Schraubverbindung miteinander verbunden sind.
- Verschleißfester Werkzeugeinsatz nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Teile des Werkzeugeinsatzes über den Werkzeughalter bzw. den Maschinenteil, in den sie eingesetzt werden, zusammengepreßt werden.
- Verschleißfester Werkzeugeinsatz nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einzelnen Teile dieses Werkzeugeinsatzes über eine zumindest teilweise gezahnte Oberfläche miteinander in Verbindung stehen.
- Verschleißfester Werkzeugeinsatz nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er aus Hartmetall besteht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0021097U AT2143U1 (de) | 1997-04-09 | 1997-04-09 | Verschleissfester werkzeugeinsatz |
AT210/97U | 1997-04-09 | ||
AT21097U | 1997-04-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0870558A2 true EP0870558A2 (de) | 1998-10-14 |
EP0870558A3 EP0870558A3 (de) | 2001-01-31 |
EP0870558B1 EP0870558B1 (de) | 2003-10-15 |
Family
ID=3484425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98201082A Expired - Lifetime EP0870558B1 (de) | 1997-04-09 | 1998-04-06 | Verschleissfester Werkzeugeinsatz |
Country Status (6)
Country | Link |
---|---|
US (1) | US5979216A (de) |
EP (1) | EP0870558B1 (de) |
AT (1) | AT2143U1 (de) |
DE (1) | DE59809893D1 (de) |
DK (1) | DK0870558T3 (de) |
ES (1) | ES2212209T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004101194A1 (en) * | 2003-05-14 | 2004-11-25 | Enkotec A/S | Inhibiting metal fatigue in a tool secured in a tool holder |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6780116B2 (en) * | 2001-08-13 | 2004-08-24 | Kennametal Inc. | Wear resistant nail manufacturing tool inserts |
US6786828B2 (en) * | 2002-04-17 | 2004-09-07 | Soerensen Svend-Helge Sell | Method of fastening a tool in a tool holder |
US7090585B2 (en) * | 2004-02-27 | 2006-08-15 | Kennametal Inc. | Nail manufacturing tool holder having a quick change mechanism |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401918A2 (de) * | 1989-06-09 | 1990-12-12 | Plansee Tizit Gesellschaft M.B.H. | Nagelschlagbacken |
EP0650698A1 (de) * | 1993-11-01 | 1995-05-03 | Ethicon, Inc. | Verfahren zur Herstellung chirurgischer Nähnadeln |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US377981A (en) * | 1888-02-14 | Bolt-threading machine | ||
US228033A (en) * | 1880-05-25 | Device for swaging screw-threads on eyebolts | ||
US357768A (en) * | 1887-02-15 | Clinton fuebish | ||
US739873A (en) * | 1902-11-28 | 1903-09-29 | Harding Allen | Self-opening die. |
US740016A (en) * | 1903-06-15 | 1903-09-29 | Harding Allen | Self-opening die. |
US986697A (en) * | 1909-12-17 | 1911-03-14 | Frank Mchale | Mechanism for making bolts. |
US996840A (en) * | 1910-06-28 | 1911-07-04 | Frank Mchale | Mechanism for making bolts, screws, &c. |
US2652577A (en) * | 1946-04-27 | 1953-09-22 | Bulloneria E Viteria Italiana | Machine for producing articles from blank stock |
-
1997
- 1997-04-09 AT AT0021097U patent/AT2143U1/de not_active IP Right Cessation
-
1998
- 1998-03-27 US US09/049,586 patent/US5979216A/en not_active Expired - Lifetime
- 1998-04-06 EP EP98201082A patent/EP0870558B1/de not_active Expired - Lifetime
- 1998-04-06 ES ES98201082T patent/ES2212209T3/es not_active Expired - Lifetime
- 1998-04-06 DK DK98201082T patent/DK0870558T3/da active
- 1998-04-06 DE DE59809893T patent/DE59809893D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401918A2 (de) * | 1989-06-09 | 1990-12-12 | Plansee Tizit Gesellschaft M.B.H. | Nagelschlagbacken |
EP0650698A1 (de) * | 1993-11-01 | 1995-05-03 | Ethicon, Inc. | Verfahren zur Herstellung chirurgischer Nähnadeln |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004101194A1 (en) * | 2003-05-14 | 2004-11-25 | Enkotec A/S | Inhibiting metal fatigue in a tool secured in a tool holder |
Also Published As
Publication number | Publication date |
---|---|
DE59809893D1 (de) | 2003-11-20 |
ES2212209T3 (es) | 2004-07-16 |
DK0870558T3 (da) | 2004-02-23 |
EP0870558B1 (de) | 2003-10-15 |
EP0870558A3 (de) | 2001-01-31 |
US5979216A (en) | 1999-11-09 |
AT2143U1 (de) | 1998-05-25 |
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