EP0407657A1 - Dispositif de refoulement pour refouler les extrémités de pièces allongées telles que des pièces en fils métalliques, et application d'un tel dispositif dans une machine de travail de fils métalliques pour la fabrication de pointes - Google Patents

Dispositif de refoulement pour refouler les extrémités de pièces allongées telles que des pièces en fils métalliques, et application d'un tel dispositif dans une machine de travail de fils métalliques pour la fabrication de pointes Download PDF

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Publication number
EP0407657A1
EP0407657A1 EP89121114A EP89121114A EP0407657A1 EP 0407657 A1 EP0407657 A1 EP 0407657A1 EP 89121114 A EP89121114 A EP 89121114A EP 89121114 A EP89121114 A EP 89121114A EP 0407657 A1 EP0407657 A1 EP 0407657A1
Authority
EP
European Patent Office
Prior art keywords
upsetting
tool
slide
wire
positioning
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
EP89121114A
Other languages
German (de)
English (en)
Other versions
EP0407657B1 (fr
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
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 Wagner Ficker and Schmid, Wafios Maschinenfabrik GmbH and Co KG filed Critical Wafios Maschinenfabrik Wagner Ficker and Schmid
Publication of EP0407657A1 publication Critical patent/EP0407657A1/fr
Application granted granted Critical
Publication of EP0407657B1 publication Critical patent/EP0407657B1/fr
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
    • 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
    • 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
    • B21G3/32—Feeding material to be worked to nail or pin making machines
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S470/00—Threaded, headed fastener, or washer making: process and apparatus
    • Y10S470/906—Nylon plug lock

Definitions

  • the invention relates to an upsetting device according to the preamble of claim 1.
  • a disadvantage of the short stroke version is that because of the short upsetting tool path, the distance between the wire holding the jaws during the head upsetting and serving as an anvil and the upsetting tool when the upsetting carriage is in the retracted position is very small. Now the upsetting tool and especially the clamping tools have to be replaced in case of tool wear or when changing the wire diameter to be processed up to now it has been necessary to remove the heavy jaw box in which the jaws are seated as a whole in order to be able to change the tools.
  • the invention is therefore based on the object to create the upsetting device in Short Stroke, due to a change of the processed wire diameter or tool wear only a few light pieces of equipment must be removed when possible, be able to replace the tools. Furthermore, the facility should be able to work more precisely, require less maintenance and be quieter.
  • the invention also relates to the use of the upsetting 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.
  • Fig. 2 is a carriage (12) of the upsetting device (14), which is part of a device for producing wire pins, via a bolt (16) seated in the forked end of the carriage (12) with the connecting rod (18) of a connecting rod (20) connected.
  • the connecting rod (18) is held on the short-stroke crank pin (24) of the drive shaft (28) of the device by means of a connecting rod cover (22).
  • the carriage (12) shown in its front working position in FIG. 2, has a dovetail guide over its entire length and is slidably mounted between two guide strips (32) on a base plate (34) in the machine frame (36).
  • a threaded flange (40) with an internal thread is fastened to the slide (12), in which a set screw (42) is screwed, which is countered by means of a ring nut (44).
  • a swaging tool (54) of the swaging device (14) is arranged in a separate guide (48) in bearing bushes (50 and 52) and can be moved longitudinally, with sliding bearings.
  • the bearing bush (50) is pressed into a cover (58) which is screwed onto the guide (48), while the bush (52) sits directly in the guide (48).
  • a shoulder is screwed against which one end of a compression spring (60) rests, the other end of which rests on a thrust ring (62) which is supported by a collar ( 56) of the upsetting tool (54) is held.
  • the guide (48) with the floating upset tool (54) can be easily removed or replaced by means of two stud bolts (66) on a bearing block (68) attached to the machine frame (36), adjusted by means of a key (70) increases. Thanks to the return spring (60), the compression tool (54) is permanently non-positively on the hexagon head of the adjusting screw (42).
  • two opposing clamping tools (76) of a clamping device (78) of the device for producing wire pins are arranged in the immediate vicinity of this and symmetrically to this axis.
  • a wire pin (82) with an upset head (84) is firmly clamped between the clamping tools (76), made from a pin blank (86).
  • toothed belts (92 and 94) lie, firmly clamped, in the tooth gaps of two toothed belts (92 and 94) of a transport device (96) of the device for producing wire pins, with which the pin blanks (86) without head (84) intermittently, in the horizontal and vertical plane exactly in front of the upsetting tool (54) of the upsetting device (14) and guided away from it.
  • the toothed belts (92 and 94) move gradually across the compression and clamping direction of the compression and clamping device (14,78).
  • the distance between the toothed belts (92 and 94) from one another, and thus the tension with which the pin blanks (86) are held in the tooth gaps, can be set by means of a height-adjustable guide rail (98 or 100).
  • a bearing (102) is attached to the front part of the guide of the carriage (12), in which a rocker arm (106) is mounted on a bolt (104).
  • a connecting rod (110) engages a bolt (108), which connects the rocker arm (106) on the one hand to the slide (12) of the upsetting device (14) via a bolt (112) and on the other hand couples a tool holder (114) to a positioning device (116) for the pin blanks (86) via a bolt (118).
  • the connecting rods (110) consist of rod ends (120 and 122) which are connected to each other by a turnbuckle (124).
  • the tool holder (114) is by means of two rods (126) lying one below the other guided longitudinally in the machine frame (36).
  • On the holder (114) is a positioning tool (132) with four working surfaces (134 to 140) for a 4-stage positioning process, during which the longitudinal position of the pin blanks (86) can be changed.
  • An additional positioning tool (146) is clamped to the slide (12), adjustable in length in a slot, by means of the bolt (112) through which the joint head (122) is fastened.
  • This positioning tool (146) is provided with only two working surfaces (148, 150) for axially displacing the pin blanks (86) against the direction of displacement of the first positioning tool (132).
  • the lower two counter-cutting tools (152) of the cutting device of the device for producing wire pins for cutting to length from the wire (154) and pyramid-shaped sharpening of the wire pin blanks (86) are indicated.
  • a feed not shown but known, pulls the wire (154) from the wire supply through a straightening device and pushes it, as shown in FIG. 1 , as much wire through the opened cutting tools (152) and into the tooth gaps of the two toothed belts (92 and 94)), only the lower toothed belt (92) being drawn in in FIG. 1, as for the desired wire pin length and for shaping the Wire pin head (84) is required.
  • the counter-cutting tools (152) each of which can be seated in a lever or in a carriage, cut off the wire (154), forming a pyramid-shaped wire pin tip (88).
  • the intermittent drive of the toothed belt pair (92 and 94) stops briefly.
  • the drive is then switched on again for a short time, thereby moving the pair of toothed belts one step further and stopping again before a new wire feed (this could also be done by a stepping gear).
  • the compensation is that the cutting tools (152) of the cutting device and the clamping and upsetting device (78, 14) of the device for producing wire pins (82) are arranged stationary, the different distance from the wire pin tip (88) to the upsetting tool (54) in the manufacture of a different pin length is compensated for by shifting the pin blanks (86) in their longitudinal direction within the transport path between the cutting station and the head upsetting station, as follows:
  • the positioning of the pin blanks (86) is carried out by the two positioning tools (132 and 146) of the positioning device (116), the first tool (132) having its four working surfaces (134 to 140) for a gradual feed.
  • the step-by-step positioning takes place with each advance stroke of the slide (12).
  • the carriage (12) moves forward i.e. when each wire pin head (84) is produced
  • the positioning tool (132) guided in the machine frame (36) is transferred to the transport device (96) via the connecting rod (110) and the rocker arm (106). Moved so that the pin blank (86) located at the time in front of the first working surface (134) of the positioning tool (132) is advanced by a certain amount.
  • the transport device (96) stands still during this process.
  • the pin blank (86) is possibly moved back a short distance from the work surface (150), as a result of which the length tolerances of the pin blanks are compensated for so that it has reached its final position, and he
  • the second positioning tool (146) moves them back in two steps, in such a way that the pin blanks are first moved back from the work surface (148) and then from the work surface (150) to the final position.
  • the positioning device (116) can be dispensed with entirely if only pins of a length order are to be produced, or if the pin quality is not so high.
  • the cutting device is then arranged so that the pin blanks (86) come to rest in the transport device (96) in such a way that just such a wire end comes out of the Clamping tools (76) protrude as is required for the head production during the upsetting process.
  • the clamping jaws (76) close, they hold the pin blank (86) for the following upsetting process to produce the pin head (84).
  • the connecting rod (18) is set in motion by the (short-stroke) crank pin (24) of the drive shaft (28), which gives the carriage (12) a reciprocating movement.
  • a finished wire pin (82) is moved further out of the tool area, while a new pin blank (86) gets between the tools (54 and 76), whereupon the process begins again.
  • the finished pins (82) fall out safely via a slide at the end of the transport route without an additional ejector, or the ordered, arriving finished pins can also be automatically removed and removed for magazine or other processing.
  • the upsetting tool (54) is arranged in a separate guide (48) and is not positively connected to the slide (12), the upsetting tool (54) together with the guide (48) can be removed as a unit by simply loosening the nuts of the stud bolts ( 66) can be easily removed and replaced if necessary. Furthermore, the clamping tools (76) can be replaced easily accessible after removing this unit. Another advantage of this, book-led outside of the carriage (12) Upsetting tool arrangement is its long round guide, which extends over a relatively large part of the tool length on both sides, which ensures that the tool is supported without play and tilting.
  • the upsetting pressure does not have to be absorbed by the slide (12) and its guide strips (32, 34), which would have to be replaced as a whole in the event of excessive wear.
  • the inaccuracy was transferred to the manufactured product with increasing wear of the slide and the guide parts, ie with increasing guide play, so that the machine had to be continuously monitored in order not to produce any rejects. The machine became louder and louder as the leadership game increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Wire Processing (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP89121114A 1989-07-08 1989-11-15 Dispositif de refoulement pour refouler les extrémités de pièces allongées telles que des pièces en fils métalliques, et application d'un tel dispositif dans une machine de travail de fils métalliques pour la fabrication de pointes Expired - Lifetime EP0407657B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922531A DE3922531C1 (fr) 1989-07-08 1989-07-08
DE3922531 1989-07-08

Publications (2)

Publication Number Publication Date
EP0407657A1 true EP0407657A1 (fr) 1991-01-16
EP0407657B1 EP0407657B1 (fr) 1994-01-12

Family

ID=6384594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121114A Expired - Lifetime EP0407657B1 (fr) 1989-07-08 1989-11-15 Dispositif de refoulement pour refouler les extrémités de pièces allongées telles que des pièces en fils métalliques, et application d'un tel dispositif dans une machine de travail de fils métalliques pour la fabrication de pointes

Country Status (6)

Country Link
US (1) US5088312A (fr)
EP (1) EP0407657B1 (fr)
JP (1) JPH0712511B2 (fr)
KR (1) KR920009832B1 (fr)
DE (2) DE3922531C1 (fr)
ES (1) ES2048814T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566938A1 (fr) * 1992-04-22 1993-10-27 Friedhelm Post Sondermaschinen Procédé et cintreuse pour réaliser une partie de fil ou tube cintré comportant une zone refoulée
EP0589389A1 (fr) * 1992-09-25 1994-03-30 United States Surgical Corporation Dispositif d'avance pour ébauche d'aiguille

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217075B (zh) * 2017-07-04 2020-07-28 泰科电子(上海)有限公司 导线处理设备
CN110038987B (zh) * 2019-05-15 2024-03-26 邹建明 一种用于钩钉加工成型的冷镦机模具及其方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49164C (de) * E. fontaine in Auburndale, Ohio, V. St. A Verfahren und Maschine zur Herstellung von Drahtstiften
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3588933A (en) * 1968-06-19 1971-06-29 George J Shinopulos Method and apparatus for simultaneously upset forming both ends of a ductile material rod blank or the like
US4270651A (en) * 1979-01-17 1981-06-02 Universal Instruments Corporation Taped belt electronic component centering device
US4737227A (en) * 1986-02-27 1988-04-12 Universal Instruments Corporation Axial leaded component centering device and method of centering components
DE3805628A1 (de) * 1987-03-12 1988-09-22 Nat Machinery Co Schmiedemaschinen mit geschlossenem gesenk

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7103385U (de) * 1971-05-06 Rilco Maschinenfabrik Gmbh & Co Kg Ruttelmaschme zur Bodenverdichtung
US382632A (en) * 1888-05-08 Chusetts
US122385A (en) * 1872-01-02 Improvement in machines for heading bolts
US1109856A (en) * 1911-04-06 1914-09-08 Walker W Mccarroll Machine for rectifying electrotypes.
US1112544A (en) * 1911-07-25 1914-10-06 Walker W Mccarroll Machine for rectifying electrotypes.
US1146957A (en) * 1913-07-01 1915-07-20 Atlas Tack Company Heading device.
US2595433A (en) * 1947-06-18 1952-05-06 Waterbury Farrel Foundry & Mac Shaft driving mechanism for headers or like machines
CA651104A (en) * 1959-07-13 1962-10-23 Westinghouse Electric Corporation Workpiece position control apparatus
US3301033A (en) * 1964-08-14 1967-01-31 Emporium Specialties Co Inc Apparatus for producing headed wire forms
SU742013A1 (ru) * 1975-11-24 1980-06-25 Центральное проектно-конструкторское бюро кузнечно-прессового машиностроения Автомат дл изготовлени гвоздей

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49164C (de) * E. fontaine in Auburndale, Ohio, V. St. A Verfahren und Maschine zur Herstellung von Drahtstiften
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3588933A (en) * 1968-06-19 1971-06-29 George J Shinopulos Method and apparatus for simultaneously upset forming both ends of a ductile material rod blank or the like
US4270651A (en) * 1979-01-17 1981-06-02 Universal Instruments Corporation Taped belt electronic component centering device
US4737227A (en) * 1986-02-27 1988-04-12 Universal Instruments Corporation Axial leaded component centering device and method of centering components
DE3805628A1 (de) * 1987-03-12 1988-09-22 Nat Machinery Co Schmiedemaschinen mit geschlossenem gesenk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566938A1 (fr) * 1992-04-22 1993-10-27 Friedhelm Post Sondermaschinen Procédé et cintreuse pour réaliser une partie de fil ou tube cintré comportant une zone refoulée
EP0589389A1 (fr) * 1992-09-25 1994-03-30 United States Surgical Corporation Dispositif d'avance pour ébauche d'aiguille
US5371338A (en) * 1992-09-25 1994-12-06 United States Surgical Corporation Needle blank feeding apparatus
US5453595A (en) * 1992-09-25 1995-09-26 United States Surgical Corporation Needle blank feeding apparatus

Also Published As

Publication number Publication date
US5088312A (en) 1992-02-18
ES2048814T3 (es) 1994-04-01
DE58906717D1 (de) 1994-02-24
EP0407657B1 (fr) 1994-01-12
KR910002534A (ko) 1991-02-25
KR920009832B1 (ko) 1992-10-31
JPH0352734A (ja) 1991-03-06
DE3922531C1 (fr) 1990-10-31
JPH0712511B2 (ja) 1995-02-15

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