EP0407655B1 - Positioniereinrichtung zum Anordnen Länglicher Werkstücke und Verwendung einer solchen Einrichtung in einer drahtverarbeitenden Stiftpresse - Google Patents

Positioniereinrichtung zum Anordnen Länglicher Werkstücke und Verwendung einer solchen Einrichtung in einer drahtverarbeitenden Stiftpresse Download PDF

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Publication number
EP0407655B1
EP0407655B1 EP89121112A EP89121112A EP0407655B1 EP 0407655 B1 EP0407655 B1 EP 0407655B1 EP 89121112 A EP89121112 A EP 89121112A EP 89121112 A EP89121112 A EP 89121112A EP 0407655 B1 EP0407655 B1 EP 0407655B1
Authority
EP
European Patent Office
Prior art keywords
workpieces
positioning
wire
tool
positioning 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.)
Expired - Lifetime
Application number
EP89121112A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0407655A1 (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 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 EP0407655A1 publication Critical patent/EP0407655A1/de
Application granted granted Critical
Publication of EP0407655B1 publication Critical patent/EP0407655B1/de
Anticipated expiration legal-status Critical
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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
    • 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

Definitions

  • the invention relates to a positioning device according to the preamble of claim 1, as was known from DD-A-238.936 or DD-C 41.141.
  • the invention relates to a positioning device according to claim 1, which differs from the known device by its characterizing features. With the help of such a device, elongated workpieces such as wire pieces, which are to be processed, for example, into head nails, can be positioned so precisely, regardless of a deliberate length difference between two different workpiece batches, that their one ends are all the same, while their other ends show the length differences.
  • the invention further relates to the use of a positioning device according to the invention in a device for producing machined wire pins, in particular head nails, that is to say in a wire processing machine, called a pin press.
  • the carriage (12) which is shown in its front working position, has a dovetail guide over its entire length and is slidably mounted between two guide strips (32) on a base plate in the machine frame (36). At its end shown, 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 an annular nut (44).
  • a compression spring-loaded compression tool (54) of the compression device (14) is arranged in a separate guide (48) in the bearing bushes and can be moved in a longitudinal manner, with sliding bearings.
  • the guide (48) with the floating upset tool (54) is attached to the machine frame (36) in an easily removable or replaceable manner by means of two stud bolts (66). Thanks to a return spring, the compression tool (54) is permanently non-positively on the hexagon head of the set screw (42). Also in the extension of the axis of the upsetting tool (54), two clamping tools (76) of a clamping device (78) of the device for producing wire pins (82) are arranged in the immediate vicinity in front of it and symmetrically to this axis, each of which acts against the other in a lever or slide . According to the drawing, a wire pin (82) with an upset head (84) is firmly clamped between the clamping tools (76).
  • the pin blanks (86) which do not yet have a head (84) are moved intermittently, in the horizontal and vertical plane, exactly in the center in front of the upsetting tool (54) of the upsetting device (14) and away from it.
  • the toothed belts (eg 92) move gradually across the compression and clamping direction of the compression and clamping device (14,78).
  • the distance between the toothed belts 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, of which only the lower one (98) can be seen.
  • a height-adjustable guide rail of which only the lower one (98) can be seen.
  • the toothed belts are also guided laterally immovably over the transport route.
  • a bearing (102) is fastened to the front part of the guide of the carriage (12), in which a rocker arm (106) is mounted on bolts (104).
  • a connecting rod (110) engages on a bolt (108), which connects the rocker arm (106) on the one hand with the slide (12) of the upsetting device (14) via a bolt (112) or on the other hand couples a tool holder (114) to a positioning device (116) for the pin blanks (86) via bolts (118).
  • the connecting rods (110) have two joint heads (120, 122) which are connected to one another by a turnbuckle (124).
  • the tool holder (114) is guided in a longitudinally movable manner in the machine frame (36) by means of two rods (126) lying one below the other.
  • a positioning tool (132) with four working surfaces (134 to 140) for a 4-stage positioning process is arranged on the holder (114), during which the longitudinal position of the pin blanks (86) can be changed.
  • An additional positioning tool (146) is clamped to the slide (12) 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 and 150) for axially displacing the pin blanks (86) against the direction of displacement of the first positioning tool (132).
  • a feed not shown, but known, pulls the wire (154) from the wire supply through a straightening device and pushes as much wire through the opened cutting tools (152) and into the tooth gaps of the two toothed belts (e.g. 92) as for the desired one Wire pin length and to form the wire pin head (84) is required.
  • the cutting tools (152) which act against one another and can each sit in a lever or in a carriage, cut off the wire (154), a pyramid-shaped wire pin tip (88) being produced.
  • the intermittent drive of the pair of toothed belts stops for a short time. Then the drive is 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). This happens until a cut-to-length pin blank (86) between the clamping tools (76) of the clamping device (78) and in the middle in front of the
  • Upsetting tool (54) of the upsetting device (14) comes to rest.
  • 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 in a stationary manner, 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 pin blank (86) has been moved from the fourth working surface (140) of the positioning tool (132) to its foremost position. In this longitudinal position, the pin blank (86) is gradually transported in the direction of the upsetting station until it comes to rest in front of the working surface (150) of the second positioning tool (146). Also derived from the compression movement of the carriage (12), 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 comes after the two transport intervals between the clamping tools (76) that exactly such a large wire end protrudes from the clamping jaws (76) as is required to form the wire pin head (84). In the case of longer pin blanks (86), 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 drive shaft is set in motion, which gives the carriage (12) a reciprocating movement.
  • This reciprocating movement does this with the upset tool (54), which is not positively connected to the hexagon of the set screw (42) by the return spring, and generates one with each forward movement Head (84) on the pin blank (86), the clamping tools (76) serving as an anvil.
  • the compression spring relaxes and it pushes the compression tool (54) back, so that it remains in permanent non-positive contact with the adjusting screw (42).
  • the height of the upsetting pressure (and thus also the shape of the wire pin head) can be adjusted by means of the adjusting screw (42) by screwing it more or less far into the threaded flange (40) in the slide (12).
  • 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 orderly arriving finished pins can also be automatically removed and removed for magazine or other processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Feeding Of Workpieces (AREA)
  • Forging (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP89121112A 1989-07-08 1989-11-15 Positioniereinrichtung zum Anordnen Länglicher Werkstücke und Verwendung einer solchen Einrichtung in einer drahtverarbeitenden Stiftpresse Expired - Lifetime EP0407655B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922529A DE3922529C1 (enExample) 1989-07-08 1989-07-08
DE3922529 1989-07-08

Publications (2)

Publication Number Publication Date
EP0407655A1 EP0407655A1 (de) 1991-01-16
EP0407655B1 true EP0407655B1 (de) 1994-02-02

Family

ID=6384592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121112A Expired - Lifetime EP0407655B1 (de) 1989-07-08 1989-11-15 Positioniereinrichtung zum Anordnen Länglicher Werkstücke und Verwendung einer solchen Einrichtung in einer drahtverarbeitenden Stiftpresse

Country Status (6)

Country Link
US (1) US5069059A (enExample)
EP (1) EP0407655B1 (enExample)
JP (1) JPH0710475B2 (enExample)
KR (1) KR920011053B1 (enExample)
DE (2) DE3922529C1 (enExample)
ES (1) ES2049301T3 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2116858C1 (ru) * 1997-07-24 1998-08-10 Открытое акционерное общество "Запсибгазпром" Устройство для изготовления гвоздей
CN108453200B (zh) * 2018-05-04 2023-08-25 广东弘基医疗生物技术有限公司 一种美容微创用的针的切割装置
CN114589228B (zh) * 2020-12-03 2024-05-14 汉达精密电子(昆山)有限公司 一种孔位冲切装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142069C (enExample) *
USRE22106E (en) * 1942-06-02 Punch press for forming sheet
DE238936C (enExample) *
DE49164C (de) * E. fontaine in Auburndale, Ohio, V. St. A Verfahren und Maschine zur Herstellung von Drahtstiften
US979457A (en) * 1908-04-15 1910-12-27 Kilby Mfg Company Wire-nail machine.
US1894526A (en) * 1927-06-20 1933-01-17 Waterbury Farrel Foundry Co Header mechanism
DE643918C (de) * 1933-08-23 1937-04-20 Paul Schnadt Maschine zur Herstellung von Nadeln mit OEhr
CA651104A (en) * 1959-07-13 1962-10-23 Westinghouse Electric Corporation Workpiece position control apparatus
JPS4925981U (enExample) * 1972-06-16 1974-03-05
SU742013A1 (ru) * 1975-11-24 1980-06-25 Центральное проектно-конструкторское бюро кузнечно-прессового машиностроения Автомат дл изготовлени гвоздей
JPS54117995A (en) * 1978-03-04 1979-09-13 Sumitomo Metal Ind Ltd Device for working both ends of tube
US4270651A (en) * 1979-01-17 1981-06-02 Universal Instruments Corporation Taped belt electronic component centering device
DD238936B1 (de) * 1985-07-01 1988-11-23 Textima Veb K Zufuehrvorrichtung fuer eine nadelschlitzfraesmaschine
US4737227A (en) * 1986-02-27 1988-04-12 Universal Instruments Corporation Axial leaded component centering device and method of centering components
JPH032513Y2 (enExample) * 1986-09-02 1991-01-23

Also Published As

Publication number Publication date
ES2049301T3 (es) 1994-04-16
US5069059A (en) 1991-12-03
KR910002535A (ko) 1991-02-25
DE58906910D1 (de) 1994-03-17
EP0407655A1 (de) 1991-01-16
KR920011053B1 (ko) 1992-12-26
JPH0343131A (ja) 1991-02-25
DE3922529C1 (enExample) 1990-10-31
JPH0710475B2 (ja) 1995-02-08

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