EP0407658A1 - Clamping and compressing or hammering device for temporarily clamping workpieces, such as pieces of wire, for the purpose of processing same. - Google Patents

Clamping and compressing or hammering device for temporarily clamping workpieces, such as pieces of wire, for the purpose of processing same. Download PDF

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Publication number
EP0407658A1
EP0407658A1 EP89121115A EP89121115A EP0407658A1 EP 0407658 A1 EP0407658 A1 EP 0407658A1 EP 89121115 A EP89121115 A EP 89121115A EP 89121115 A EP89121115 A EP 89121115A EP 0407658 A1 EP0407658 A1 EP 0407658A1
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EP
European Patent Office
Prior art keywords
clamping
cam
upsetting
hammering
levers
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
EP89121115A
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German (de)
French (fr)
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EP0407658B1 (en
Inventor
Gerhard Dipl.-Ing. Lange (Fh)
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.)
Wafios Maschinenfabrik Wagner Ficker and Schmid
Wafios Maschinenfabrik GmbH and Co KG
Original Assignee
Wafios Maschinenfabrik Wagner Ficker and Schmid
Wafios Maschinenfabrik GmbH and Co KG
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Application filed by Wafios Maschinenfabrik Wagner Ficker and Schmid, Wafios Maschinenfabrik GmbH and Co KG filed Critical Wafios Maschinenfabrik Wagner Ficker and Schmid
Publication of EP0407658A1 publication Critical patent/EP0407658A1/en
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Publication of EP0407658B1 publication Critical patent/EP0407658B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F5/00—Upsetting wire or pressing operations affecting the wire cross-section
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the invention is therefore based on the object to make the jaws carrying levers of the clamping device, in particular an apparatus for the production of wire nails or so arranged that the closing force of Klemmbak ken is increased with increasing compressive force during the head upsetting process, without additional device parts are required, while relieving the load on the cam mechanism of the device.
  • the knowledge contained herein is part of the invention. Starting from a device of the type mentioned at the outset, this object is achieved according to the invention by the characterizing features of claim 1.
  • each of the two two-armed levers has its own pivot axis, which are at the same distance from the wire axis, above and below it, one above the other, the elongated pin axis being at the same time the axis of symmetry of the lever arrangement and passing perpendicularly through the center of the control shaft axis, is advantageously achieved, that the compressive force not only maintains the clamping force, but actually increases it.
  • the distance between the two lever pivot points is dimensioned so that, firstly, there is a sufficiently large opening angle of the clamping jaws with a minimal stroke on the control cams, and secondly, the design of the lever and its mounting, to relieve the control shaft, a sufficiently large closing torque during the head upsetting process he brings.
  • the closing force of the clamping jaws of the clamping device also increases steadily, while the contact pressure of the cam rollers on the control cams of the cam mechanism for actuating the levers of the clamping device decreases.
  • the clamping force of the clamping jaws only has to be dimensioned so large that the wire is not displaced in the clamping jaws at the beginning of the upsetting, ie when the upsetting tool hits the wire end, since the clamping effect during head formation is supported or increased when the upsetting pressure is subsequently built up.
  • the control shaft for the clamping device and its storage must therefore only absorb a minimal force.
  • the upsetting pressure is absorbed by the machine frame via the lever bearing.
  • the invention also relates to the use of the clamping and upsetting or hammering device according to the invention in a wire processing machine, in particular a pin press as a device for producing wire pins, in particular head nails.
  • two bearings (14) are fixed horizontally one behind the other, fixed by means of tongue and groove, on the machine frame (12), in which two vertically one below the other bolts (16) are rotatably mounted.
  • An upper (18) or lower (20) two-armed lever of the clamping device (22) of a device for producing wire pins is arranged between the bearings (14), the levers (18 and 20) being rotatably attached to each via a wedge (not shown) the bolts (16) are connected.
  • a cam roller (30) is mounted on a pin (28), which cooperates with a control cam (32), while two on a pin (36) on the fork which is inevitably moved Arm (38) of the lower lever (20) mounted cam rollers (30'and 30 ⁇ ) cooperate with two control cams (32'or 32 ⁇ ), which are arranged axially symmetrically on both sides of the central control cam (32). All three control cams have the same gear, so that the two levers (18 and 20) perform exactly the same movements.
  • the three control cams (32 and 32 'and 32 ⁇ ) are combined on a control cam carrier (33) which is rotatably connected to a control shaft (34) which is mounted on ball bearings in the machine frame (12) and from the drive shaft of the device via one Toothed belt drive is driven.
  • a further bolt (42) is rotatably fastened on the a spring sleeve (44) is arranged with its lower end.
  • a compression spring (60) is clamped between the piston (56) and the base of the bore (58).
  • the threaded end of the rod (52) of the spring piston (56) is inserted through the bore of a bolt (64) which rotates in the arm (26) of the upper lever (18) between the associated bolt (16) and the bolt ( 28) is attached.
  • clamping jaws (76) for clamping a piece of wire or a pin blank, by means of Screws adjustable and clamped by clamping strips (78), fastened.
  • a wire pin (82) with an upset head (84) is firmly clamped between the two clamping jaws (76).
  • 1 also shows an upsetting tool (90) of an upsetting device of the device for producing wire pins for molding the head (84) onto the pin blank (86).
  • the upsetting tool (90) is arranged centrally in front of the two clamping jaws (76).
  • the shaft of the wire pin (82) projecting from the clamping jaws (76) in FIG. 1 lies, firmly clamped, in the tooth gaps of two toothed belts (94 and 96) of a transport device (98) of the device for producing wire pins, with which none Pin blanks (86) having a head (84) intermittently, in the horizontal and vertical plane, exactly in the middle between the clamping jaws (76) of the clamping device (22) and in front of the upsetting tool (90) of the upsetting device and guided away from them.
  • the two transport belts (94 and 96) move gradually across the compression and clamping direction of the compression and clamping device (76, 90).
  • the distance between the toothed belts (94 and 96) can be adjusted by means of a height-adjustable guide rail (100 or 102) and thus the tension with which the pin blanks (86) are held in the tooth gaps can be adjusted.
  • a height-adjustable guide rail 100 or 102
  • the toothed belts (94 and 96) are also guided laterally immovably over the transport path. So that longer pin blanks can also be transported, the bearings (14) are provided with a trapezoidal recess (104).
  • the device works as follows: A feeder, not shown, but known pulls wire from a wire supply through a straightening device and pushes as much wire through the opened cutting tools of a cutting device, not shown, of the device for producing wire pins and into tooth gaps of the two toothed belts (94 and 96), as for the desired wire pin length and to form the wire pin head (84) is required.
  • the cutting tools then cut the wire, creating a pyramid-shaped wire pen tip.
  • the intermittent drive of the pair of toothed belts stops for a short time.
  • the drive is then switched on again for a short time and the pair of toothed belts moved one step further and stopped again for a new wire feed. This happens so often until a cut-to-length pin blank (86) comes to rest between the two clamping jaws (76) of the clamping device (22) and in the middle in front of the upsetting tool (90), with a wire end that projects from the still separated clamping jaws exactly as needed to form the wire pin head (84) becomes.
  • the control shaft (34) then makes one revolution, the previously opened clamping jaws (76) of the clamping device (22) being controlled by the radial ascent of the control cams (32 and 32 ′ and 32 ⁇ ) by spreading the long lever arms (26 and 38) close the two-armed lever (18 or 20) and hold the pin blank (86) for the next upsetting process for upsetting the pin head (84).
  • the upsetting tool (90) of the upsetting device is moved back and forth, for example by a short-stroke crank pin of the drive shaft of the device for producing wire pins.
  • the clamping jaws (76) serving as an anvil the descending region of the control cams (32 and 32 ′ and 32 ⁇ ) is run through.
  • the previously compressed compression spring (60) relaxes and thereby presses the spring piston (56) down, whereby the cam rollers (30 and 30 'and 30 ⁇ ) in permanent non-positive contact with the control cams (32 or 32' or 32 ⁇ ) remain and the lever arms (26 and 38) approach each other so that the two jaws (76) open again.
  • the upsetting tool (90) is moved into its rearward position.
  • the finished wire pin (82) is moved out of the tool area, while a new pin blank (86) gets between the tools (76 and 90), whereupon the process begins again.
  • the finished pens drop out over a slide at the end of the transport route.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Wire Processing (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention relates to a clamping and upsetting or hammering device. …<??>The prior art comprises devices which have two clamping levers with a clamping tool, a cam mechanism for actuating the same and an upsetting or hammering tool, the common axis of rotation of the levers intersecting the wire feed axis at right angles or running parallel thereto. …<??>The disadvantage of these axis arrangements is that the clamping force is provided exclusively by the control shaft of the cam mechanism. …<??>The object of the invention is to boost the clamping force by an increasing upsetting or hammering force while simultaneously relieving the load on the cam mechanism. …<??>The solution to this object is, on the one hand, the separation of the two axes (16) of rotation of the clamping levers (18 and 20) and the symmetrical arrangement of these axes and the arrangement of the wire feed axis (82) and the upsetting or hammering direction at right angles to the axes of rotation of the levers and to the cam control shaft (34), the said direction (82) intersecting this shaft and crossing centrally through the two axes (16) of rotation, and, on the other hand, the direct non-positive control of the clamping levers (18 and 20) via at least one control cam (32) on the control shaft (34) and in each case one cam roller (30) on the lever arm (26 and 38 respectively) remote from the tool by means of a device (54) for maintaining non-positive engagement, which holds the roller (30) against the cam (32). …<??>The advantage of this solution to the object is that the initial clamping force increases with the increase in the upsetting or hammering force, at least until the rollers lift off from the cam disc, and that the subsequent increase in force can only stress the lever bearings. …<IMAGE>…

Description

Die Erfindung betrifft eine Einrichtung gemäß Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Es sind verschiedene Maschinen zur Herstellung von Drahtstiften, z.B. aus der DE-PS 449 860 und der DE-PS 459 543 bekannt. Bei der Einrichtung gemäß DE-PS 449 860 sind die zwei Klemmbacken in einem einarmigen Hebelpaar gelagert, dessen ge­meinsame Schwenkachse rechtwinklig zur Drahtachse liegt und diese schneidet. Bei der aus der DE-PS 459 543 bekannten Einrichtung sind die beiden Klemmbacken in zwei zweiarmigen Hebeln gelagert, deren gemeinsame Schwenkachse seitlich von der Drahtachse und parallel dazu angeordnet ist.
Bei beiden vorbekannten Einrichtungen wird die Klemmkraft, mit der der Draht während des Kopfanstauchens unverrückbar gehalten wird, von der Steuerwelle auf­gebracht und von zusätzlichen, einen Kniehebel bildenden Gelenkstücken ver­stärkt.
Außer der aufwendigen Konstruktion dieser Einrichtungen mit den vielen Gelenk-­und Drehpunkten, die große Lagerspiele ergeben und dadurch einem enormen Ver­schleiß unterliegen und Lärm verursachen, besteht außerdem noch der Nachteil, daß bei nicht richig eingestelltem Kniehebel Bruchgefahr besteht.Various machines for producing wire pins are known, for example from DE-PS 449 860 and DE-PS 459 543. In the device according to DE-PS 449 860, the two jaws are mounted in a one-armed pair of levers, the common pivot axis of which is perpendicular to the wire axis and intersects it. In the device known from DE-PS 459 543, the two clamping jaws are mounted in two two-armed levers, the common pivot axis of which is arranged laterally from the wire axis and parallel to it.
In both known devices, the clamping force with which the wire is immovably held during head upsetting is applied by the control shaft and reinforced by additional joint pieces forming a toggle lever.
In addition to the complex construction of these devices with the many articulation and pivot points, which result in large bearing play and are therefore subject to enormous wear and tear and cause noise, there is also the disadvantage that there is a risk of breakage if the toggle lever is not set correctly.

Der Erfindung liegt daher die Aufgabe zugrunde, die die Klemmbacken tragenden Hebel der Klemmeinrichtung insbesondere einer Vorrichtung zur Herstellung von Drahtstiften so zu gestalten bzw. anzuordnen, daß die Schließkraft der Klemmbak­ ken bei zunehmender Stauchkraft während des Kopfanstauchvorgangs verstärkt wird, ohne daß zusätzliche Vorrichtungsteile benötigt werden, bei gleichzeitiger Ent­lastung des Kurvengetriebes der Einrichtung. Die hierin enthaltene Erkenntnis gehört zur Erfindung.
Diese Aufgabe wird ausgehend von einer Einrichtung der eingangs genannten Art erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Da­durch, daß jeder der beiden zweiarmigen Hebel eine eigene Schwenkachse besitzt, die im gleichen Abstand von der Drahtachse, oberhalb und unterhalb von dieser übereinander liegen, wobei die verlängerte Stiftachse gleichzeitig Symmetrieach­se der Hebelanordnung ist und senkrecht mittig durch die Steuerwellenachse hin­durchgeht, wird vorteilhafterweise erreicht, daß die Stauchkraft die Klemmkraft nicht nur erhält, sondern sogar verstärkt. Der Abstand der beiden Hebelschwenk­punkte voneinander ist dabei so bemessen, daß sich erstens bei minimalem Hub an den Steuerkurven ein ausreichend großer öffnungswinkel der Klemmbacken ergibt, und daß zweitens die Bauform der Hebel und deren Lagerung, zur Entlastung der Steuerwelle, ein genügend großes Schließmoment beim Kopfanstauchvorgang er­bringt. Mit zunehmender Stauchkraft der Staucheinrichtung nimmt somit die Schließkraft der Klemmbacken der Klemmeinrichtung gleichfalls stetig zu, während die Anpreßkraft der Kurvenrollen an den Steuerkurven des Kurvengetriebes für die Betätigung der Hebel der Klemmeinrichtung abnimmt. Die Schließkraft der Klemm­backen muß lediglich so groß bemessen sein, daß der Draht bei Stauchbeginn, d.h. beim Auftreffen des Stauchwerkzeugs auf das Drahtende, nicht in den Klemmbacken verschoben wird, da beim anschließenden Aufbauen des Stauchdrucks die Klemmwir­kung beim Kopfformen unterstützt bzw. erhöht wird. Die Steuerwelle für die Klemmeinrichtung und deren Lagerung muß also nur eine minimale Kraft aufnehmen. Der Stauchdruck wird über die Hebellagerung vom Maschinengestell aufgenommen.The invention is therefore based on the object to make the jaws carrying levers of the clamping device, in particular an apparatus for the production of wire nails or so arranged that the closing force of Klemmbak ken is increased with increasing compressive force during the head upsetting process, without additional device parts are required, while relieving the load on the cam mechanism of the device. The knowledge contained herein is part of the invention.
Starting from a device of the type mentioned at the outset, this object is achieved according to the invention by the characterizing features of claim 1. The fact that each of the two two-armed levers has its own pivot axis, which are at the same distance from the wire axis, above and below it, one above the other, the elongated pin axis being at the same time the axis of symmetry of the lever arrangement and passing perpendicularly through the center of the control shaft axis, is advantageously achieved, that the compressive force not only maintains the clamping force, but actually increases it. The distance between the two lever pivot points is dimensioned so that, firstly, there is a sufficiently large opening angle of the clamping jaws with a minimal stroke on the control cams, and secondly, the design of the lever and its mounting, to relieve the control shaft, a sufficiently large closing torque during the head upsetting process he brings. With increasing compression force of the compression device, the closing force of the clamping jaws of the clamping device also increases steadily, while the contact pressure of the cam rollers on the control cams of the cam mechanism for actuating the levers of the clamping device decreases. The clamping force of the clamping jaws only has to be dimensioned so large that the wire is not displaced in the clamping jaws at the beginning of the upsetting, ie when the upsetting tool hits the wire end, since the clamping effect during head formation is supported or increased when the upsetting pressure is subsequently built up. The control shaft for the clamping device and its storage must therefore only absorb a minimal force. The upsetting pressure is absorbed by the machine frame via the lever bearing.

Gegenstand der Erfindung ist auch die Verwendung der erfindungsgemäßen Klemm- und Stauch- oder Hämmereinrichtung in einer drahtverarbeitenden Maschine, insbe­sondere einer Stiftpresse als Vorrichtung zur Herstellung von Drahtstiften, ins­besondere Kopfnägeln.The invention also relates to the use of the clamping and upsetting or hammering device according to the invention in a wire processing machine, in particular a pin press as a device for producing wire pins, in particular head nails.

Im folgenden ist die Erfindung anhand der durch die Zeichnung beispielhaft dar­gestellten bevorzugten Ausführungsform der erfindungsgemäßen Einrichtung im ein­zelnen erläutert. Es zeigen:

  • Fig. 1 die Ausführungsform in Vorderansicht in teilweise angebrochener und geschnittener Darstellung
  • Fig. 2 einen Schnitt gemäß Schnittlinie II - II in Fig. 1
  • Fig. 3 die Ausführungsform in Draufsicht in teilweise abge­brochener und geschnittener Darstellung.
The invention is explained in detail below with reference to the preferred embodiment of the device according to the invention, which is shown by way of example in the drawing. Show it:
  • Fig. 1 shows the embodiment in front view in a partially broken and sectional view
  • 2 shows a section along section line II - II in FIG. 1
  • Fig. 3 shows the embodiment in plan view in a partially broken and sectional view.

In Fig. 1 sind am Maschinengestell (12) zwei Lager (14) im Abstand waagrecht hintereinander, mittels Nut und Feder fixiert, befestigt, in denen zwei vertikal untereinanderliegende Bolzen (16) drehbar gelagert sind. Zwischen den Lagern (14) ist je ein oberer (18) bzw. unterer (20) zweiarmiger Hebel der Klemmein­richtung (22) einer Vorrichtung zur Herstellung von Drahtstiften angeordnet, wo­bei die Hebel (18 und 20) über je einen nicht gezeigten Keil drehfest mit den Bolzen (16) verbunden sind. Am gegabelten, zwangsläufig bewegten Arm (26) des oberen Hebels (18) ist auf einem Bolzen (28) eine Kurvenrolle (30) gelagert, die mit einer Steuerkurve (32) zusammenwirkt, während zwei auf einem Bolzen (36) am zwangsläufig bewegten gegabelten Arm (38) des unteren Hebels (20) gelagerte Kur­venrollen (30′und 30˝) mit zwei Steuerkurven (32′bzw. 32˝) zusammenwirken, wel­che axial auf beiden Seiten der mittleren Steuerkurve (32) symmetrisch angeord­net sind. Alle drei Steuerkurven weisen den gleichen Gang auf, so daß die beiden Hebel (18 und 20) exakt gleiche Bewegungen ausführen. Die drei Steuerkurven (32 und 32′ und 32˝) sind auf einem Steuerkurventräger (33) vereinigt, der drehfest mit einer Steuerwelle (34) verbunden ist, die auf Kugellagern im Maschinenge­stell (12) gelagert ist und von der Antriebswelle der Vorrichtung über einen Zahnriementrieb angetrieben wird.
Zwischen zugeordnetem Bolzen (16) und dem Bolzen (36) ist im gesteuerten Hebel­arm (38) unteren Hebels (20) ein weiterer Bolzen (42) drehbar befestigt, auf dem eine Federhülse (44) mit ihrem unteren Ende angeordnet ist. In einer Büchse (46) der Federhülse (44) ist die Stange (52) eines Federkolbens (56) gleitend gela­gert, der in der Bohrung (58) der Federhülse (44) geführt ist. Zwischen dem Kol­ben (56) und dem Grund der Bohrung (58) ist eine Druckfeder (60) eingespannt. Das mit einem Gewinde versehene Ende der Stange (52) des Federkolbens (56) ist durch die Bohrung eines Bolzens (64) gesteckt, der drehbar im Arm (26) des obe­ren Hebels (18) zwischen zugeordnetem Bolzen (16) und dem Bolzen (28) befestigt ist. Auf dem Gewinde der Stange (52) sitzen zwei Muttern, mit denen die Vorspan­nung der Druckfeder (60) eingestellt werden kann, wodurch die Größe des Kraft­schlusses zwischen den Kurvenrollen (30 und 30′und 30˝) einerseits und den Steu­erkurven (32 und 32′und 32˝) andererseits verändert werden kann. Das ganze ist also ein Kraftschlußhalter (54).
An den freien Enden der kurzen Arme (68 und 70) der beiden zweiarmigen Hebel (18 und 20) sind in je einer Werkzeugaufnahme (72 bzw. 74) jedes Hebels gleich aus­gebildete Klemmbacken (76) zum Festklemmen eines Drahtstücks bzw. eines Stif­trohlings, mittels Schrauben einstellbar und durch Spannleisten (78) einge­spannt, befestigt. Zwischen den zwei Klemmbacken (76) befindet sich in Fig. 1 ein Drahtstift (82) mit angestauchtem Kopf (84) fest eingeklemmt.
In Fig. 1 ist ferner ein Stauchwerkzeug (90) einer Staucheinrichtung der Vor­richtung zur Herstellung von Drahtstiften zum Anformen des Kopfes (84) an den Stiftrohling (86) angedeutet. Das Stauchwerkzeug (90) ist mittig vor den beiden Klemmbacken (76) angeordnet.
Der in Fig. 1 aus den Klemmbacken (76) herausragende Schaft des Drahtstifts (82) liegt, fest eingeklemmt, in den Zahnlücken zweier Zahnriemen (94 und 96) einer Transporteinrichtung (98) der Vorrichtung zur Herstellung von Drahtstiften, mit der die noch keinen Kopf (84) aufweisenden Stiftrohlinge (86) intermittierend, in horizontaler und vertikaler Ebene exakt mittig zwischen die Klemmbacken (76) der Klemmeinrichtung (22) und vor das Stauchwerkzeug (90) der Staucheinrichtung heran- und von diesen weggeführt werden. Die beiden Transportriemen (94 und 96) bewegen sich dabei schrittweise quer zur Stauch- und Klemmrichtung der Stauch- und Klemmeinrichtung (76, 90). Mittels je einer höhenverstellbaren Führungs­schiene (100 bzw. 102) kann der Abstand der Zahnriemen (94 und 96) voneinander und damit die Spannung, mit der die Stiftrohlinge (86) in den Zahnlücken gehal­ten werden, eingestellt werden. Durch seitliche Führungsflächen der Führungs­schienen (100 und 102) werden die Zahnriemen (94 und 96) ferner, seitlich unver­rückbar, über die Transportstrecke geführt. Damit auch längere Stiftrohlinge transportiert werden können, sind die Lager (14) mit einer trapezförmigen Aus­sparung (104) versehen.
Gemäß Fig. 1 und 3 besteht eine vollkommene Symmetrie der Ausbildung und Anord­nung der beiden Klemmhebel (18 und 20) bzgl. einer waagrechten Ebene, in der die Achse der Steuerwelle (34) sowie die diese rechtwinklig schneidende Achse des eingeklemmten Drahtstiftes (82) liegen und zu welcher die Achsen der Bolzen (28 und 36 und 16) sowie die Transportrichtung der Zahnriemen (94 und 96) im Bereich der Klemmeinrichtung (22) parallel verlaufen. In dieser Symmetrieebene bzw. quer dazu bewegen sich das Stauchwerkzeug (90) senkrecht zur Transportrichtung und die Klemmbacken (76), deren einander entgegengesetzte Klemmrichtungen senkrecht auf der Drahtstiftachse stehen.In Fig. 1, two bearings (14) are fixed horizontally one behind the other, fixed by means of tongue and groove, on the machine frame (12), in which two vertically one below the other bolts (16) are rotatably mounted. An upper (18) or lower (20) two-armed lever of the clamping device (22) of a device for producing wire pins is arranged between the bearings (14), the levers (18 and 20) being rotatably attached to each via a wedge (not shown) the bolts (16) are connected. On the forked, inevitably moved arm (26) of the upper lever (18), a cam roller (30) is mounted on a pin (28), which cooperates with a control cam (32), while two on a pin (36) on the fork which is inevitably moved Arm (38) of the lower lever (20) mounted cam rollers (30'and 30˝) cooperate with two control cams (32'or 32˝), which are arranged axially symmetrically on both sides of the central control cam (32). All three control cams have the same gear, so that the two levers (18 and 20) perform exactly the same movements. The three control cams (32 and 32 'and 32˝) are combined on a control cam carrier (33) which is rotatably connected to a control shaft (34) which is mounted on ball bearings in the machine frame (12) and from the drive shaft of the device via one Toothed belt drive is driven.
Between the assigned bolt (16) and the bolt (36) in the controlled lever arm (38) of the lower lever (20) a further bolt (42) is rotatably fastened on the a spring sleeve (44) is arranged with its lower end. The rod (52) of a spring piston (56), which is guided in the bore (58) of the spring sleeve (44), is slidably mounted in a bush (46) of the spring sleeve (44). A compression spring (60) is clamped between the piston (56) and the base of the bore (58). The threaded end of the rod (52) of the spring piston (56) is inserted through the bore of a bolt (64) which rotates in the arm (26) of the upper lever (18) between the associated bolt (16) and the bolt ( 28) is attached. On the thread of the rod (52) there are two nuts with which the prestress of the compression spring (60) can be adjusted, whereby the size of the frictional connection between the cam rollers (30 and 30'and 30und) on the one hand and the control cams (32 and 32 'And 32˝) on the other hand can be changed. So the whole thing is a non-positive holder (54).
At the free ends of the short arms (68 and 70) of the two two-armed levers (18 and 20) in each tool holder (72 or 74) of each lever are identically designed clamping jaws (76) for clamping a piece of wire or a pin blank, by means of Screws adjustable and clamped by clamping strips (78), fastened. In FIG. 1, a wire pin (82) with an upset head (84) is firmly clamped between the two clamping jaws (76).
1 also shows an upsetting tool (90) of an upsetting device of the device for producing wire pins for molding the head (84) onto the pin blank (86). The upsetting tool (90) is arranged centrally in front of the two clamping jaws (76).
The shaft of the wire pin (82) projecting from the clamping jaws (76) in FIG. 1 lies, firmly clamped, in the tooth gaps of two toothed belts (94 and 96) of a transport device (98) of the device for producing wire pins, with which none Pin blanks (86) having a head (84) intermittently, in the horizontal and vertical plane, exactly in the middle between the clamping jaws (76) of the clamping device (22) and in front of the upsetting tool (90) of the upsetting device and guided away from them. The two transport belts (94 and 96) move gradually across the compression and clamping direction of the compression and clamping device (76, 90). The distance between the toothed belts (94 and 96) can be adjusted by means of a height-adjustable guide rail (100 or 102) and thus the tension with which the pin blanks (86) are held in the tooth gaps can be adjusted. Through lateral guide surfaces of the guide rails (100 and 102), the toothed belts (94 and 96) are also guided laterally immovably over the transport path. So that longer pin blanks can also be transported, the bearings (14) are provided with a trapezoidal recess (104).
1 and 3 there is a perfect symmetry of the design and arrangement of the two clamping levers (18 and 20) with respect to a horizontal plane in which the axis of the control shaft (34) and the axis of the pinched wire pin (82) intersecting it at right angles lie and to which the axes of the bolts (28 and 36 and 16) and the direction of transport of the toothed belts (94 and 96) run parallel in the region of the clamping device (22). In this plane of symmetry or transversely thereto, the upsetting tool (90) moves perpendicular to the direction of transport and the clamping jaws (76), the opposite clamping directions of which are perpendicular to the wire pin axis.

Die Wirkungsweise der beschriebenen Vorrichtung ist folgende:
Ein nicht dargestellter, aber bekannter Einzug zieht Draht von einem Drahtvorrat durch einen Richtapparat und schiebt soviel Draht durch die geöffneten Schneid­werkzeuge einer nicht gezeigten Schneideinrichtung der Vorrichtung zur Herstel­lung von Drahtstiften hindurch und in Zahnlücken der beiden Zahnriemen (94 und 96) hinein, wie für die gewünschte Drahtstiftlänge und zur Formung des Draht­stiftkopfes (84) benötigt wird. Danach schneiden die Schneidwerkzeuge den Draht ab, wobei eine pyramidenförmige Drahtstiftspitze entsteht. Während des Einschie­bens zwischen die beiden Zahnriemen (94 und 96) und Abschneidens des Drahtes steht der intermittierende Antrieb des Zahnriemenpaars kurzzeitig still. Danach wird der Antrieb für kurze Zeit wieder eingeschaltet und das Zahnriemenpaar ei­nen Schritt weiterbewegt und für einen erneuten Drahteinzug wieder gestoppt. Dies geschieht so oft, bis ein abgelängter Stiftrohling (86) zwischen den beiden Klemmbacken (76) der Klemmeinrichtung (22) und mittig vor dem Stauchwerkzeug (90) zu liegen kommt, wobei genau ein so großes Drahtende aus den noch getrenn­ten Klemmbacken herausragt, wie zur Formung des Drahtstiftkopfes (84) benötigt wird. Danach vollführt die Steuerwelle (34) eine Umdrehung, wobei die zuvor ge­öffneten Klemmbacken (76) der Klemmeinrichtung (22), vom radialen Aufstieg der Steuerkurven (32 und 32′ und 32˝) gesteuert, durch Spreizen der langen Hebelarme (26 und 38) der zweiarmigen Hebel (18 bzw. 20) schließen und den Stiftrohling (86) für den nun folgenden Stauchvorgang zum Anstauchen des Stiftkopfes (84) festhalten. Hierfür wird das Stauchwerkzeug (90) der Staucheinrichtung z.B. von einem Kurzhub-Kurbelzapfen der Antriebswelle der Vorrichtung zur Herstellung von Drahtstiften hin- und herbewegt. Nachdem der Kopf (84) bei der Vorwärtsbewegung des Stauchwerkzeugs (90) angestaucht wurde, wobei die Klemmbacken (76) als Amboß dienten, wird der Abstiegsbereich der Steuerkurven (32 und 32′ und 32˝) durch­laufen. Hierbei entspannt sich die zuvor zusammengedrückte Druckfeder (60) und drückt dabei den Federkolben (56) nach unten, wodurch die Kurvenrollen (30 und 30′ und 30˝) in dauernd kraftschlüssiger Anlage an den Steuerkurven (32 bzw. 32′ bzw. 32˝) verbleiben und sich die Hebelarme (26 und 38) einander nähern, so daß sich die beiden Klemmbacken (76) wieder öffnen. Gleichzeitig wird das Stauch­werkzeug (90) in seine rückwärtige Stellung bewegt. Bei dem nun folgenden näch­sten Transportschritt der Transporteinrichtung (98) wird der fertige Drahtstift (82) aus dem Werkzeugbereich herausbewegt, während ein neuer Stiftrohling (86) zwischen die Werkzeuge (76 und 90) gelangt, worauf der Vorgang von neuem be­ginnt. Nach einigen weiteren Transportintervallen fallen die fertigen Stifte am Ende der Transportstrecke über eine Rutsche aus.The device works as follows:
A feeder, not shown, but known pulls wire from a wire supply through a straightening device and pushes as much wire through the opened cutting tools of a cutting device, not shown, of the device for producing wire pins and into tooth gaps of the two toothed belts (94 and 96), as for the desired wire pin length and to form the wire pin head (84) is required. The cutting tools then cut the wire, creating a pyramid-shaped wire pen tip. During the insertion between the two toothed belts (94 and 96) and the cutting of the wire, the intermittent drive of the pair of toothed belts stops for a short time. The drive is then switched on again for a short time and the pair of toothed belts moved one step further and stopped again for a new wire feed. This happens so often until a cut-to-length pin blank (86) comes to rest between the two clamping jaws (76) of the clamping device (22) and in the middle in front of the upsetting tool (90), with a wire end that projects from the still separated clamping jaws exactly as needed to form the wire pin head (84) becomes. The control shaft (34) then makes one revolution, the previously opened clamping jaws (76) of the clamping device (22) being controlled by the radial ascent of the control cams (32 and 32 ′ and 32˝) by spreading the long lever arms (26 and 38) close the two-armed lever (18 or 20) and hold the pin blank (86) for the next upsetting process for upsetting the pin head (84). For this purpose, the upsetting tool (90) of the upsetting device is moved back and forth, for example by a short-stroke crank pin of the drive shaft of the device for producing wire pins. After the head (84) has been compressed during the forward movement of the upsetting tool (90), the clamping jaws (76) serving as an anvil, the descending region of the control cams (32 and 32 ′ and 32˝) is run through. Here, the previously compressed compression spring (60) relaxes and thereby presses the spring piston (56) down, whereby the cam rollers (30 and 30 'and 30˝) in permanent non-positive contact with the control cams (32 or 32' or 32˝ ) remain and the lever arms (26 and 38) approach each other so that the two jaws (76) open again. At the same time, the upsetting tool (90) is moved into its rearward position. In the next next transport step of the transport device (98), the finished wire pin (82) is moved out of the tool area, while a new pin blank (86) gets between the tools (76 and 90), whereupon the process begins again. After a few more transport intervals, the finished pens drop out over a slide at the end of the transport route.

Claims (4)

1.) Klemm- und Stauch- oder Hämmereinrichtung zum vorübergehenden Halten von Werkstücken wie Drahtstücken bzw. zum Bearbeiten derselben; mit zwei Klemmhebeln, an denen je ein Klemmwerkzeug zur gemeinsamen Werkstückerfassung gelagert ist; mit einem Kurvengetriebe zum Bewegen der Klemmhebel für ein abwechselndes Öffnen und Schließen der zwei Klemmwerkzeuge; und mit einem Stauch- oder Hämmer­werkzeug, das in einer bestimmten geraden Richtung auf das zu bearbeitende Werkstück trifft, dadurch gekennzeichnet, daß die beiden zweiarmig, symmetrisch ausgebildeten Klemmhebel (18 und 20) getrennte, parallele Drehachsen (16) besitzen, zwischen denen die windschiefe Auftreffrichtung des Stauch- oder Hämmerwerk­zeug (90) senkrecht mittenhindurch kreuzt, wobei sie darüberhinaus die Achse der Steuerwelle (34) des Kurvengetriebes (30,32) senkrecht schneidet und die Symmetrieebene der zwei Klemmhebel diese Auftreffrichtung enthält; und daß die Steuerwelle (34) des Kurvengetriebes (30,32; 30′/30˝, 32′/32˝) die beiden Klemmhebel (18 und 20) unmittelbar kraftschlüssig steuert über wenigstens eine Steuerkurve (32), wobei mindestens ein Kraftschlußhalter (54) an den werkzeugfernen Hebelarmen (26 und 38) gelagerte Kurvenrollen (30) in Anlage an der wenigstens einen Steuerkurve (32) hält.1.) Clamping and upsetting or hammering device for temporarily holding workpieces such as wire pieces or for processing the same; with two clamping levers, each with a clamping tool for joint workpiece detection; with a cam mechanism for moving the clamping levers for alternating opening and closing of the two clamping tools; and with an upsetting or hammering tool that strikes the workpiece to be machined in a certain straight direction, characterized in that the two two-armed, symmetrically designed clamping levers (18 and 20) have separate, parallel axes of rotation (16) between which the skewed wind The direction of impact of the upsetting or hammering tool (90) crosses vertically through the middle, whereby it also intersects the axis of the control shaft (34) of the cam mechanism (30, 32) vertically and the plane of symmetry of the two clamping levers contains this direction of impact; and that the control shaft (34) of the cam mechanism (30, 32; 30 '/ 30˝, 32' / 32˝) directly controls the two clamping levers (18 and 20) in a non-positive manner via at least one control cam (32), at least one non-positive holder ( 54) on the lever arms (26 and 38) remote from the tool supports cam rollers (30) in contact with the at least one control cam (32). 2.) Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Kurvengetriebe eine Anordnung dreier Kurvenscheiben (32 und 32′ und 32˝) auf der gemeinsamen Steuerwelle (34) und dreier Kurvenrollen (30 und 30′ und 30˝) aufweist, von denen zwei (30′ und 30˝) am selben Klemmhebel (20) gelagert sind, während die dritte Kurvenrolle (30) in der von den beiden anderen Kurvenrollen (30′ und 30˝) und von den zwei äußeren Kurvenscheiben (32′ und 32˝) bestimmten Symmetrieebene gelagert ist.2.) Device according to claim 1, characterized in that the cam mechanism has an arrangement of three cams (32 and 32 'and 32˝) on the common control shaft (34) and three cam rollers (30 and 30' and 30˝), of which two (30 'and 30˝) are mounted on the same clamping lever (20), while the third cam roller (30) in that of the other two cam rollers (30' and 30˝) and the two outer cams (32 'and 32˝ ) certain plane of symmetry is stored. 3.) Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein einziger Kraftschlußhalter (54) die zwei zwangsläufigen Arme (26 und 38) der beiden Klemmhebel (18 bzw. 20) verbindet und einen gefederten Kolben (56) in einem Zylinder (44) aufweist, der drehbar an dem einen Arm (38) gelagert ist, während die Kolben­stange (52) zur Einstellung der Feder (60)-Vorspannung längsverstellbar an dem anderen Arm (26) gelagert ist.3.) Device according to claim 1 or 2, characterized in that a single adhesion holder (54) connects the two inevitable arms (26 and 38) of the two clamping levers (18 and 20) and a spring-loaded piston (56) in a cylinder ( 44) which is rotatably mounted on one arm (38), while the piston rod (52) for adjusting the spring (60) preload is mounted on the other arm (26) in a longitudinally adjustable manner. 4.) Verwendung der Klemm- und Stauch- oder Hämmereinrichtung nach einem der Ansprüche 1 bis 3 in einer drahtverarbeitenden Maschine, insbesondere einer Stiftpresse als Vorrichtung zur Herstellung von Drahtstiften, insbesondere Kopfnägeln.4.) Use of the clamping and upsetting or hammering device according to one of claims 1 to 3 in a wire processing machine, in particular a pin press as a device for producing wire pins, in particular head nails.
EP89121115A 1989-07-08 1989-11-15 Clamping and compressing or hammering device for temporarily clamping workpieces, such as pieces of wire, for the purpose of processing same. Expired - Lifetime EP0407658B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922532 1989-07-08
DE3922532A DE3922532C1 (en) 1989-07-08 1989-07-08

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EP0407658A1 true EP0407658A1 (en) 1991-01-16
EP0407658B1 EP0407658B1 (en) 1993-03-17

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ID=6384595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121115A Expired - Lifetime EP0407658B1 (en) 1989-07-08 1989-11-15 Clamping and compressing or hammering device for temporarily clamping workpieces, such as pieces of wire, for the purpose of processing same.

Country Status (6)

Country Link
US (1) US5127252A (en)
EP (1) EP0407658B1 (en)
JP (1) JPH0712510B2 (en)
KR (1) KR920009831B1 (en)
DE (2) DE3922532C1 (en)
ES (1) ES2039812T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425560A1 (en) * 1994-07-20 1996-01-25 Schuler Pressen Gmbh & Co Press with gripper rails
DE19507714A1 (en) * 1995-03-07 1996-09-12 Helmut Gerth Processing machine for screws, nails or the like
CN102707095A (en) * 2012-05-04 2012-10-03 昆山沪光汽车电器有限公司 Lead detecting plate with bundling wire clamp groove

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR414995A (en) * 1910-03-30 1910-09-15 Alfred Charles Improvements relating to nail-making machines and their equivalents, or jumpers, also applicable for shaping screw heads
FR444477A (en) * 1912-05-31 1912-10-18 Friedrich Wilhelm Von Dreusche Seeds with a partially cylindrical and partially angular stem, and apparatus for making them
FR17687E (en) * 1912-05-31 1913-10-27 Friedrich Wilhelm Von Dreusche Seeds with a partially cylindrical and partially angular stem, and apparatus for making them

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE449860C (en) * 1927-09-22 Jakob Wikschtroem Machine for making wire nails
US346467A (en) * 1886-08-03 Wire-nail machine
US333863A (en) * 1886-01-05 Machine for making wire nails
US1260260A (en) * 1914-05-12 1918-03-19 Singer Mfg Co Variable-feed mechanism for eyeleting and other machines.
US1642597A (en) * 1925-07-09 1927-09-13 Wikschtrom Jakob Machine for manufacturing nails from wire
US1739745A (en) * 1926-09-06 1929-12-17 Wikschtrom Jakob Machine for the manufacture of nails from wire
DE459543C (en) * 1926-09-07 1928-05-08 Jakob Wikschtroem Machine for making wire nails
US2381171A (en) * 1943-10-18 1945-08-07 American Steel & Wire Co Duplex head nail machine
GB767493A (en) * 1952-09-19 1957-02-06 Nat Machinery Co Improvements in or relating to a nail making machine
DE970906C (en) * 1952-10-30 1958-11-13 Erich Ribback Hammering machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR414995A (en) * 1910-03-30 1910-09-15 Alfred Charles Improvements relating to nail-making machines and their equivalents, or jumpers, also applicable for shaping screw heads
FR444477A (en) * 1912-05-31 1912-10-18 Friedrich Wilhelm Von Dreusche Seeds with a partially cylindrical and partially angular stem, and apparatus for making them
FR17687E (en) * 1912-05-31 1913-10-27 Friedrich Wilhelm Von Dreusche Seeds with a partially cylindrical and partially angular stem, and apparatus for making them

Also Published As

Publication number Publication date
EP0407658B1 (en) 1993-03-17
KR920009831B1 (en) 1992-10-31
KR910002533A (en) 1991-02-25
DE3922532C1 (en) 1990-10-04
DE58903836D1 (en) 1993-04-22
JPH0712510B2 (en) 1995-02-15
JPH0347644A (en) 1991-02-28
US5127252A (en) 1992-07-07
ES2039812T3 (en) 1993-10-01

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