EP1013384B1 - Verfahren zum Lochen einer Flachleitung - Google Patents

Verfahren zum Lochen einer Flachleitung Download PDF

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Publication number
EP1013384B1
EP1013384B1 EP99403226A EP99403226A EP1013384B1 EP 1013384 B1 EP1013384 B1 EP 1013384B1 EP 99403226 A EP99403226 A EP 99403226A EP 99403226 A EP99403226 A EP 99403226A EP 1013384 B1 EP1013384 B1 EP 1013384B1
Authority
EP
European Patent Office
Prior art keywords
cable
zone
punching
reference plane
midplane
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
EP99403226A
Other languages
English (en)
French (fr)
Other versions
EP1013384A1 (de
Inventor
Frédéric Maurel
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.)
Axoral
Original Assignee
Axoral
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Filing date
Publication date
Application filed by Axoral filed Critical Axoral
Publication of EP1013384A1 publication Critical patent/EP1013384A1/de
Application granted granted Critical
Publication of EP1013384B1 publication Critical patent/EP1013384B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets

Definitions

  • the present invention relates to a method of punching a cable dish. This technique is illustrated for example by patent US-A-4829375.
  • Flat cables generally include at least one area conductor laterally delimiting an intermediate free zone whose median plane is intended to contain the axis of the punching; the diameter of the punch being the most often less than the width of said free zone.
  • This punching is intended to produce orifices used as positioning references for subsequent welding operations automatic cable to auxiliary electrical or electronic components such as only connectors, circuits ...
  • the punching of a flat cable is carried out in the traditional way by positioning by pressing one of its lateral edges against a side secured to a fixed reference guide.
  • a second sidewall disposed opposite the first provides a elastic support against the other lateral edge of the cable so as to compensate for its possible variations in width.
  • the position of the median plane of the free zone depends closely lateral placement of the conductive area which is not strictly invariable along the cable because of the tolerances allowed for its margin while the position of the punching axis is always fixed since it is linked to the tool position.
  • the object of the present invention is to solve technical problems posed by traditional punching processes by making the axis of the punching tool with the median plane of the infill free zone whatever are its dimensions and its position on the cable.
  • plan of references the median plane of the conductive area.
  • the transverse is moved cable by controlling a motor acting on the lateral cable guide.
  • the video system notably comprises a camera associated with fiber optic lighting means.
  • the position is checked of the reference plane on a stripped part of the cable.
  • the position of the reference plane is then checked while longitudinally adjusting the cable.
  • the method of the invention allows punching in any safety, without risk of damaging the conductors, whatever are their dimensions and their position on the cable as long as this position remains within allowable tolerances.
  • the method of the invention makes it possible to use as a reference for the determination of the optimal position for punching an intangible plane which is not not mechanically palpable.
  • the positioning of the punching tool is performed based on the actual location of the conductors and not in relation to a edge of the cable.
  • Punching produces reference holes for connections cables which are thus placed in optimum positions with respect to to drivers, taking into account variations in margin and center distance.
  • This process is carried out automatically and continuously, which offers very high rates with a very satisfactory level of quality.
  • the flat cable section 1 shown in top view in FIG. 1A has at least one conductive area C distributed over ten conductors C1 to C10 of identical dimensions.
  • this cable it is planned to perform a punching P axis to make at least one positioning orifice and preferably two punching of axes P1, P2 in the two intermediate free zones located respectively between conductors C1 and C2, on the one hand, and between conductors C9 and C10, on the other hand.
  • the flat cable presents the configuration shown where the left margin is narrower than right margin. It may also be, that the total width of the cable and / or the dimensions of the conductors C1 to C10 or their spacing is modified relative to the arrangement of Figure 1A.
  • the punching tool ignores the offset of the conductors since it is positioned relative to the only fixed lateral guide G whose side F is kept here in contact with the left lateral edge of the cable under the action of means elastic support A mounted on the right side of the cable opposite side F.
  • circuit R includes conductive zones or tracks C1'-C10 ' and orifices or pins P1 ', P2' intended to be aligned with the orifices P1, P2 resulting from the punching of the section 11 of flat cable of FIG. 1B in view perform an automatic welding operation.
  • FIG. 2A represents a top view of an identical section of cable 1 to that shown in FIG. 1A, that is to say a section in which the conductors C1 to C10 are arranged perfectly symmetrically with respect to to the median plane of the cable 1 which here coincides with the median plane M of the group of conductors C1-C10 forming the conductive zone.
  • Punching is carried out in the free zones located respectively between conductors C1 and C2, on the one hand, and C9 and C10, on the other hand, and produces the orifices P1, P2.
  • Each of the free zones is therefore delimited by two conductive zones adjacent respectively for the free zone P1, the conducting zones C1 and C2-C10 and for the free area P2, the conductive areas C1-C9 and C10.
  • the theoretical distance Do respectively separating the orifices P1, P2 from median plane M used as the reference plane is determined by a system video coupled to a computer.
  • the calculated or measured value of this distance Do for a perfect cable like that of FIGS. 1A and 2A is taken as the value of set by the computer.
  • the cable 1 is then run in contact with a lateral guide G having transverse mobility while continuously measuring the position of the midplane M of reference by means of the video system and by determining by means of the calculator the distance D separating the plane M from the axes P1 or P2.
  • This difference corresponds to the value of the offset of the free zones relative to to the axes of the punchings P1, P2.
  • the difference d is given by the computer which generates then a signal acting on the lateral guide G to automatically move its lateral flank F from a distance d to the right.
  • This adjustment has the effect of making the median planes of the free areas with the axes of the punches P1, P2.
  • the cable is then connected to an auxiliary member R in taking care beforehand to align the pins P1 ', P2' of the organ R with the orifices P1, P2 of the cable as shown in Figure 2D.
  • Figures 3A and 3B show sectional views of another cable 1 to nine drivers.
  • This cable comprises a first conductive zone constituted a group of conductors C1, C2 of large section and a second zone conductor consisting of seven conductors C3-C9 of smaller section.
  • the median plane M of the second zone conductor C3-C9 and the optimum position of the P axis of the punching for a perfect cable ( Figure 3A).
  • This optimum position corresponds here in the median plane of the infill free zone located between the first and second conductive areas.
  • the distance Do is entered in the computer as a set value.
  • the cable 1 is then run in contact with the flank F of the lateral guide G which is likely to move transversely while continuously controlling the position of the reference plane M with respect to the axis P.
  • This position corresponds to a distance D which can vary on certain sections of the cable due in particular to the manufacturing tolerances relating to margins and deviate from the original position.
  • any variation of the distance D with respect to the set distance Do corresponds to an offset of the median plane of the infill free zone with respect to the P axis of the punching (see Figure 3B).
  • the computer constantly compares the value of D observed by the video system with setpoint Do.
  • the computer determines then the gap d and sends a control signal to the lateral guide G cooperating with the elastic support means A for moving the cable over a distance d, in the opposite direction of this gap.
  • This transverse movement of the cable has the effect of resetting the plane median of the free area in between with the fixed axis P of the punching tool on FIG. 3B, the distance D is greater than Do and the difference d is positive, which controls the stroke d to the left of the lateral guide G and the movement of the cable 1 in the same direction under the action of the support means A until the edge left side of the cable comes into contact with the side F.
  • FIG. 4 represents a schematic view of an installation allowing the implementation of the process of the invention qualified as punching assisted by video.
  • This installation includes sets of x rollers intended for transfer automatic and continuous flat cable 1 between two storage coils X, Y.
  • Cable 1 from coil X runs in a lateral guide G in front a video camera V associated with fiber optic lighting means (not apparent).
  • the guide G comprises a stepping motor T actuating the flank F intended coming into contact with the lateral edge of the cable 1 and which cooperates with means elastic support A arranged opposite (see Figures 3A, 3B).
  • the punching tool PA is mounted immediately downstream of the system video and thus works on a perfectly positioned cable.
  • a cable tensioning roller Z is arranged downstream of the PA tool so that both control and measurement operations as well as punching are carried out on a perfectly flat cable.
  • the process is monitored by a control station K equipped with a screen E.
  • the camera V, the guide G and the punching PA are controlled by the computer S.
  • the control station K is located downstream of the PA tool and is also equipped U video cameras.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Insulated Conductors (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (7)

  1. Verfahren zum Lochen eines Flachkabels (1) mit zumindest einem leitenden Bereich (C), welcher seitlich zumindest einen freien Zwischenbereich begrenzt, dessen Mittelebene dazu bestimmt ist, die feste Lochungsachse (P) zu enthalten, dadurch gekennzeichnet, dass
    man das Flachkabel an einer seitlichen Führung (G) vorbeilaufen lässt, während man mittels eines mit einem Rechner verbundenen Videosystems bezüglich der Lochungsachse (P) die Position (D) einer Bezugsebene (M) steuert, welche auf dem leitenden Bereich sitzt, und man sie mit einem der theoretischen Position (Do) dieser Bezugsebene (M) bezogen auf die Mittelebene des freien Zwischenbereichs entsprechenden Einstellwert vergleicht, um die Versetzung (d) dieses Bereichs bezogen auf die Lochungsachse zu messen,
    man anschließend das Kabel (1) in Querrichtung und automatisch um einen Abstand, welcher der von dem Rechner gemessenen Versetzung (d) entspricht, versetzt, um die Mittelebene des freien Bereichs mit der Lochungsachse (P) in Deckung zu bringen, und
    man dann die Lochung des Kabels in dieser Position durchführt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man die Mittelebene des leitenden Bereichs (C) als Bezugsebene (M) wählt.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man das Kabel in Querrichtung versetzt, indem man einen auf die seitliche Führung (G) des Kabels einwirkenden Schrittmotor ansteuert.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man, wenn das Kabel zwei leitende Bereiche (C) aufweist, die aus einer Gruppe aus Leitern mit kleinem Querschnitt bzw. einer Gruppe aus Leitern mit großem Querschnitt bestehen, die Versetzung (d) des freien Zwischenbereichs misst, indem man die Mittelebene der Gruppe der Leiter mit kleinem Querschnitt als Bezugsebene (M) hernimmt.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Videosystem insbesondere eine mit Mitteln zum Beleuchten mittels optischen Fasern verbundene Kamera (V) umfasst.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man die Position der Bezugsebene (M) auf einem blanken Teil des Kabels steuert.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass man die Position der Bezugsebene (M) steuert, indem man das Kabel (1) in Längsrichtung einstellt.
EP99403226A 1998-12-21 1999-12-21 Verfahren zum Lochen einer Flachleitung Expired - Lifetime EP1013384B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816141 1998-12-21
FR9816141A FR2787375B1 (fr) 1998-12-21 1998-12-21 Procede de poinconnage d'un cable plat

Publications (2)

Publication Number Publication Date
EP1013384A1 EP1013384A1 (de) 2000-06-28
EP1013384B1 true EP1013384B1 (de) 2003-03-19

Family

ID=9534245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99403226A Expired - Lifetime EP1013384B1 (de) 1998-12-21 1999-12-21 Verfahren zum Lochen einer Flachleitung

Country Status (4)

Country Link
US (1) US6400397B1 (de)
EP (1) EP1013384B1 (de)
DE (1) DE69906023T2 (de)
FR (1) FR2787375B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8517245B1 (en) * 2012-04-17 2013-08-27 Cheng Uei Precision Industry Co., Ltd. Automatic soldering machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677116A (en) * 1970-08-05 1972-07-18 Berg Electronics Inc Blanking device for ribbon cable
US3924923A (en) * 1973-06-08 1975-12-09 Amp Inc Flat cable electrical connections and methods of making same
US4742746A (en) * 1986-04-17 1988-05-10 Amp Incorporated Reworking and sizing of flat conductor cable
US4829375A (en) * 1986-08-29 1989-05-09 Multiline Technology, Inc. Method for punching in printed circuit board laminates and related apparatus and articles of manufacture
US5417134A (en) * 1993-11-30 1995-05-23 The Whitaker Corporation Apparatus for laterally positioning flat cable

Also Published As

Publication number Publication date
FR2787375A1 (fr) 2000-06-23
DE69906023T2 (de) 2004-06-03
FR2787375B1 (fr) 2001-03-09
EP1013384A1 (de) 2000-06-28
DE69906023D1 (de) 2003-04-24
US6400397B1 (en) 2002-06-04

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