EP1879264A2 - Dispositifs de sertissage d'un élément de contact - Google Patents

Dispositifs de sertissage d'un élément de contact Download PDF

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Publication number
EP1879264A2
EP1879264A2 EP07006208A EP07006208A EP1879264A2 EP 1879264 A2 EP1879264 A2 EP 1879264A2 EP 07006208 A EP07006208 A EP 07006208A EP 07006208 A EP07006208 A EP 07006208A EP 1879264 A2 EP1879264 A2 EP 1879264A2
Authority
EP
European Patent Office
Prior art keywords
recesses
gears
racks
movement
pin
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
EP07006208A
Other languages
German (de)
English (en)
Other versions
EP1879264A3 (fr
EP1879264B1 (fr
Inventor
Stefan Neubauer
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.)
Schaefer Werkzeug und Sondermaschinenbau GmbH
Original Assignee
Schaefer Werkzeug und Sondermaschinenbau GmbH
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 Schaefer Werkzeug und Sondermaschinenbau GmbH filed Critical Schaefer Werkzeug und Sondermaschinenbau GmbH
Priority to PL07006208T priority Critical patent/PL1879264T3/pl
Publication of EP1879264A2 publication Critical patent/EP1879264A2/fr
Publication of EP1879264A3 publication Critical patent/EP1879264A3/fr
Application granted granted Critical
Publication of EP1879264B1 publication Critical patent/EP1879264B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0488—Crimping apparatus or processes with crimp height adjusting means

Definitions

  • the invention relates to a device for crimping a contact element to a cable, comprising a crimping tool with a reciprocable by a first eccentric link and a thereto by means of a tool holder fixable and by a second eccentric relatively movable mold half, wherein the second eccentric by a worm wheel is rotatable.
  • Such a device is from the US Pat. No. 6,067,828 A1 known. It is used in crimping contact elements on cables, wires or the like for use and has a servo-driven fine adjustment for the stroke of the relatively movable mold half in order to achieve a perfect crimping process and certain minimum extraction forces with respect to the crimped To ensure cable strands of a cable. This is difficult because the contact elements are usually made of brass, ie a harder material than the copper from which the cable strands of the usual power cables.
  • This consists of a signal-operated motor, which is suitable, a spindle in one Rotate rotary motion, which is rotatable with a fixed on the drive shaft of the second eccentric worm wheel.
  • a signal-operated motor which is suitable
  • a spindle in one Rotate rotary motion which is rotatable with a fixed on the drive shaft of the second eccentric worm wheel.
  • the signal required for the motor is continuously provided during the operation of the device, for example, using strain gauges as a measuring element.
  • the invention is based on the object to further develop such a device such that there is a substantial relief of the fine stroke adjustment.
  • a blocking device is provided, can be suppressed by the relative displacements of the displaceable mold half in relation to the backdrop.
  • the invention is based on the recognition that even a worm gear with respect to the vibrations occurring during normal operation of a crimping device is not sufficiently self-locking, to prevent undesirable adjustments of the fine stroke during operation, which result neither from the heating of the device still caused by tool wear. These adjustments unfortunately occur frequently, which requires a correspondingly frequent use of the servo drive of Feinhubs and ultimately can cause considerable wear on the parts involved therein. Such problems are overcome with the invention.
  • the fine lift is only activated when there is a real need for it. Even when crimping contact elements on very thin cables with a diameter of less than 0.3 mm, it is easy to obtain optimal crimp connections in mass production while minimizing the maintenance of the required crimping devices.
  • the link and the displaceable tool holder are rigidly connected by the blocking device, for example, by a screwed into the gate clamping screw, which clamps the tool holder immovably in their leadership.
  • a clamping screw can be actuated manually. It allows a stepless change of the fine stroke.
  • the second eccentric is non-rotatably fixed by the blocking device in the backdrop.
  • the second eccentric causes a relative displacement of the tool holder in a relative rotation in the backdrop. Unwanted Relativverschiebitch the tool holder, which must be prevented in the end, are therefore prevented in this proposal by a possible blocking of the second eccentric means of the blocking device.
  • the blocking device thus acts in this embodiment on the drive means of the tool holder.
  • the blocking device comprises at least one pin or cam which is displaceably mounted in the gate parallel to its longitudinal direction and has a pin which extends transversely to its longitudinal direction extending recess of the tool holder or the eccentric is engageable.
  • the tool holder or the eccentric can in this case have a plurality of successive recesses in the direction of movement, into which at least one pin or cam can be latched in order to allow the most sensitive possible relative adjustment of the fine stroke.
  • the laterally juxtaposed recesses may be uniformly formed in one another, for example, such that the adjacent recesses are formed by juxtaposed sections of the tooth gaps of helical gears or racks.
  • the juxtaposed portions of the tooth spaces, with respect to the direction of movement, are offset from one another in the direction of movement, resulting in tracks, each associated with at least one pin or cam, all pins or cams are arranged transversely to the direction of movement at the same height.
  • the lateral width of such a gear or such a rack must be dimensioned so large that each given tooth pitch can be bridged by the inclination of the teeth and gullets without interruption.
  • the end of a tooth gap at the left end of the gear or the rack should thus be laterally at the same height as the beginning of the next tooth gap, based on the direction of movement.
  • the tracks can also be formed by sections of adjacent racks or gears with a straight toothing. They can be particularly easy to produce and assemble in such a training in desirable accuracy.
  • the classification depends on the respective requirements. In general, it is sufficient if the recesses of the adjacent racks or gears in the direction of movement by 1/10 mm to 1/100 mm offset from each other are arranged to each other.
  • the pins or cams are useful spring loaded in the recesses latched and raised by a servo drive. If only a single pin or cam engages, and this is the normal case, the spring force is sufficient.
  • the servo drive is advantageous in order to enable all pins or cams to be released before a desired adjustment of the fine stroke, thereby making it possible to actuate the fine stroke. Following this, the servo drive is turned off with the result that at least one pin or cam engages in a recess by the spring bearing thereon and prevents further adjustment.
  • a servo drive is provided by all pins or cams are raised at the same time. It can consist of a conventional motor or an electromagnet, which cooperates with a bolt or a rocker.
  • the device shown in Fig. 1 is used for crimping a contact element to a wire, comprising a crimping tool with a first eccentric 1 of a first eccentric shaft 2 back and forth movable gate 3 and a thereto by means of a tool holder 4 and fixed by a second eccentric pin 5 of a second eccentric shaft 6 relative to it in the same direction displaceable tool half 1.1, wherein the second eccentric pin 5 is rotatable by a worm wheel 7, and wherein a blocking device 8 is provided, can be suppressed by the relative displacements of the movable mold half 1.1 with respect to the link 3.
  • the link 3 and the displaceable tool holder 4 are rigidly connected by the blocking device 8 shown in FIG.
  • the blocking device in this embodiment consists of a clamping screw 8.1, which is received in a threaded bore of the gate and which can be brought into engagement with a recess of the tool holder 4. It can also be immovably be pressed against a smooth surface of the tool holder 4, which allows a continuous blocking of the tool holder relative to the backdrop.
  • the blocking device 8 it is also possible to block the drive means of the tool holder 4, if necessary, in which the second eccentric pin 5 or the second eccentric shaft 6 carrying it can be fixed non-rotatably in the link 3 by the blocking device 8.
  • the blocking device 8 comprises at least one in the gate 3 parallel to its longitudinal direction slidably mounted pin 8.1 or cam, which is engageable with a recess 9 of the tool holder 4, the second eccentric pin 6 or the second eccentric shaft 6 carrying it.
  • a pin 8.1 may be formed by a manually operable clamping screw, a cam by a projection of a hinged lever which can be latched into a recess 9, Fig. 3rd
  • the tool holder shown in Fig. 2 has a plurality of successive recesses 9 in the direction of movement 14, in which a total of at least one pin 12 or cam can be latched. This is sufficient to prevent unwanted relative displacements of the tool holder 4 in the link 3.
  • the recesses 9 which follow one another directly in the direction of movement 14 are arranged in laterally offset tracks 11, with each track 11 being assigned at least one pin 12 or cam. This makes it possible to refine the pitch of the recesses in total, in which adjacent recesses 9 are arranged overlapping each other.
  • the tracks 11 are formed by sections of juxtaposed racks 13 or gears, which simplifies the production. Both racks 13 and gears can be purchased inexpensively in commerce in any fineness and summarized in blocks in the manner shown.
  • a plurality of racks 13 or gears are provided side by side and that the successive recesses 9 of the adjacent racks or gears are mounted in the direction of movement 14 relative to each other by a uniform value corresponding to the tooth pitch T of the racks 13 or gears, divided by the number of total available racks 13 or gears, in this case by 5.
  • the recesses 9 of the adjacent racks 13 or gears can thus in the direction of movement by any value, advantageous be offset from one another by 1 mm to 1/10 mm. This results in the situation that depending on the relative displacement of the tool holder only one pin 12 can engage in one of the many recesses 9, in this case the pin 12a. This is sufficient to suppress unwanted relative shifts.
  • the remaining of the adjacent pins 12 are, as can be seen, not engaged, but are available for other relative displacements.
  • gears are used, the result is an identical function. They can be immovably fixed to the drive spindle 15 of the worm wheel 7, which, due to the large gear ratio of the following worm gear Feinhubterrorismen the tool holder 4 can adjust relative to the link 3 of up to 1 / 1000mm and block rigid.
  • this is a considerable advantage and an essential prerequisite for achieving a permanently high quality of the crimp connections.
  • Fig. 3 it is shown that the pins 12 or cams spring loaded in the recesses latched and by a servo drive 16 can be raised therefrom. There is a total of only one servo drive 16 is provided, through which all pins 12 or cams are raised at the same time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Transmission Devices (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP07006208.8A 2006-07-13 2007-03-27 Dispositifs de sertissage d'un élément de contact Not-in-force EP1879264B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07006208T PL1879264T3 (pl) 2006-07-13 2007-03-27 Urządzenia do obciskania elementu stykowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006032363A DE102006032363B3 (de) 2006-07-13 2006-07-13 Vorrichtung zum Ancrimpen eines Kontaktelementes

Publications (3)

Publication Number Publication Date
EP1879264A2 true EP1879264A2 (fr) 2008-01-16
EP1879264A3 EP1879264A3 (fr) 2008-05-28
EP1879264B1 EP1879264B1 (fr) 2015-02-18

Family

ID=38556299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07006208.8A Not-in-force EP1879264B1 (fr) 2006-07-13 2007-03-27 Dispositifs de sertissage d'un élément de contact

Country Status (4)

Country Link
EP (1) EP1879264B1 (fr)
DE (1) DE102006032363B3 (fr)
ES (1) ES2535542T3 (fr)
PL (1) PL1879264T3 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076828A (en) 1998-09-10 2000-06-20 Mcgill; Nancy E. Educational language skills game

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8917144D0 (en) * 1989-07-27 1989-09-13 Amp Gmbh Press ram
US5909913A (en) * 1996-09-19 1999-06-08 The Whitaker Corporation Shut height adjustment mechanism for a terminal applicator
CH693550A5 (de) * 1997-06-30 2003-09-30 Komax Holding Ag Krimpvorrichtung und Verfahren zu deren Betrieb.
DE10232470A1 (de) * 2002-07-17 2004-02-05 Bernhard Schäfer Werkzeug- und Sondermaschinenbau GmbH Verfahren und Vorrichtung zur Qualitätssicherung von Crimpverbindungen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076828A (en) 1998-09-10 2000-06-20 Mcgill; Nancy E. Educational language skills game

Also Published As

Publication number Publication date
DE102006032363B3 (de) 2007-12-06
ES2535542T3 (es) 2015-05-12
EP1879264A3 (fr) 2008-05-28
EP1879264B1 (fr) 2015-02-18
PL1879264T3 (pl) 2015-07-31

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