EP0407658B1 - Klemm- und Stauch- oder Klemm-ünd Hämmereinrichtung zum vorübergeheden Halten von Werkstücken wie Drahtstücken bzw. zum Bearbeiten derselben. - Google Patents

Klemm- und Stauch- oder Klemm-ünd Hämmereinrichtung zum vorübergeheden Halten von Werkstücken wie Drahtstücken bzw. zum Bearbeiten derselben. Download PDF

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Publication number
EP0407658B1
EP0407658B1 EP89121115A EP89121115A EP0407658B1 EP 0407658 B1 EP0407658 B1 EP 0407658B1 EP 89121115 A EP89121115 A EP 89121115A EP 89121115 A EP89121115 A EP 89121115A EP 0407658 B1 EP0407658 B1 EP 0407658B1
Authority
EP
European Patent Office
Prior art keywords
clamping
cam
wire
tool
compressing
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
EP89121115A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0407658A1 (de
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 GmbH and Co KG
Original Assignee
Wafios Maschinenfabrik GmbH and Co KG
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 Wafios Maschinenfabrik GmbH and Co KG filed Critical Wafios Maschinenfabrik GmbH and Co KG
Publication of EP0407658A1 publication Critical patent/EP0407658A1/de
Application granted granted Critical
Publication of EP0407658B1 publication Critical patent/EP0407658B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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, as known from FR-E-17687.
  • the invention is therefore based on the object to make a device, in particular for producing wire pins, the jaws carrying levers of the clamping device or to arrange so that the closing force of the clamping jaws is increased with increasing compression force during the head upsetting process, without additional device parts being required, while simultaneously relieving the load on the cam mechanism of the device.
  • this object is achieved according to the invention by the characterizing features of claim 1.
  • Characterized in that the direction of impact of the upsetting or hammering tool is determined by its arrangement on the side of the clamping tools facing away from the axes of rotation of the clamping levers and (certainly) intersects the axis of the control shaft of the cam mechanism vertically, it is advantageously achieved that the upsetting (or hammers ) not only maintains the clamping force, but even increases it.
  • the distance between the two lever pivot points is to be dimensioned such that, firstly, with a minimal stroke on the control cams there is a sufficiently large opening angle for the clamping jaws provided as clamping tools, and secondly that the design of the lever and its mounting, to relieve the control shaft, is sufficient large closing torque of the clamping lever, for example during a head upsetting process.
  • the closing force of the clamping jaws of the clamping device also increases steadily, while the contact pressure of conventional 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. -As a result of the fact that the at least one non-positive holder acts on the lever arms which are inevitably moved from the tool, relatively low restoring forces are used to maintain contact Cam and roller out and there is enough space to attach the / the friction holder / s.
  • 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 ⁇ ) interact with two control cams (32' and 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)
EP89121115A 1989-07-08 1989-11-15 Klemm- und Stauch- oder Klemm-ünd Hämmereinrichtung zum vorübergeheden Halten von Werkstücken wie Drahtstücken bzw. zum Bearbeiten derselben. Expired - Lifetime EP0407658B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
EP0407658A1 EP0407658A1 (de) 1991-01-16
EP0407658B1 true EP0407658B1 (de) 1993-03-17

Family

ID=6384595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121115A Expired - Lifetime EP0407658B1 (de) 1989-07-08 1989-11-15 Klemm- und Stauch- oder Klemm-ünd Hämmereinrichtung zum vorübergeheden Halten von Werkstücken wie Drahtstücken bzw. zum Bearbeiten derselben.

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425560A1 (de) * 1994-07-20 1996-01-25 Schuler Pressen Gmbh & Co Presse mit Greiferschienen
DE19507714A1 (de) * 1995-03-07 1996-09-12 Helmut Gerth Bearbeitungsmaschine für Schrauben, Nägel o. dgl.
RU2116858C1 (ru) * 1997-07-24 1998-08-10 Открытое акционерное общество "Запсибгазпром" Устройство для изготовления гвоздей
RU2307720C2 (ru) * 2005-06-02 2007-10-10 Открытое акционерное общество "Магнитогорский метизно-калибровочный завод "ММК-МЕТИЗ" Способ формирования головок гвоздей и инструмент для окончательного оформления головок
CN102707095A (zh) * 2012-05-04 2012-10-03 昆山沪光汽车电器有限公司 捆扎线卡槽导线检测板
CN108296387B (zh) * 2018-03-23 2024-10-22 黄子孟 一种微小型多工位冷锻机

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US333863A (en) * 1886-01-05 Machine for making wire nails
DE449860C (de) * 1927-09-22 Jakob Wikschtroem Maschine zur Herstellung von Drahtstiften
US346467A (en) * 1886-08-03 Wire-nail machine
FR414995A (fr) * 1910-03-30 1910-09-15 Alfred Charles Perfectionnements relatifs aux machines à fabriquer les clous et leur équivalent, ou les cavaliers, applicables également pour faconner les tetes de vis
FR17687E (fr) * 1912-05-31 1913-10-27 Friedrich Wilhelm Von Dreusche Semences à tige partiellement cylindrique et partiellement anguleuse, et appareil pour les fabriquer
FR444477A (fr) * 1912-05-31 1912-10-18 Friedrich Wilhelm Von Dreusche Semences à tige partiellement cylindrique et partiellement anguleuse, et appareil pour les fabriquer
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 (de) * 1926-09-07 1928-05-08 Jakob Wikschtroem Maschine zur Herstellung von Drahtstiften
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 (de) * 1952-10-30 1958-11-13 Erich Ribback Haemmermaschine

Also Published As

Publication number Publication date
JPH0347644A (ja) 1991-02-28
EP0407658A1 (de) 1991-01-16
US5127252A (en) 1992-07-07
ES2039812T3 (es) 1993-10-01
KR910002533A (ko) 1991-02-25
DE3922532C1 (enrdf_load_stackoverflow) 1990-10-04
KR920009831B1 (ko) 1992-10-31
JPH0712510B2 (ja) 1995-02-15
DE58903836D1 (de) 1993-04-22

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