DD287106A5 - METHOD FOR ELECTRICALLY TESTING CONNECTION CABLES OR WIRES - Google Patents

Abstract

The invention relates to a method for electrical testing of Anschlußzzleitungen or Kabelbaeumen, in particular prefabricated, multi-core, multi-pole Anschlußuszleitungen or Kabelbaeume. According to the invention, first the testing of the corresponding electrical connections of the individual wires by indiscriminate insertion on recordings takes place independently and subsequently the testing of the individual wires is integrated, during the molding process is carried out directly at the Abkuehlphase and anschlieszend followed an identification of the faulty line. FIG {procedures; Anschluszleitungen; Kabelbaeume; veins; Protective conductor; connector; Recordings; inspection process; cooling phase; Identification}

Description

The inventive method is characterized in particular by the fact that no separate test station is necessary and the test procedure is integrated into the molding process, whereby a considerable saving of working time is made possible.

exemplary The invention will be explained in more detail using an exemplary embodiment. The figure shows a schematic representation of the method according to the invention. The molding process is carried out in single or Mehrfachanformwerkzeug 17. The test procedure is in this Anformvorgang

stored. The operator puts the one end of the lead or harness 7 with the connected

Plug pins or bushings 9, in which the outer mold 10 is to be formed, in cassettes 14; 16 one. In the Recording 8 on the cartridge 14 are arranged for this purpose pins or 6 insulated. The other end of the Connecting line 7 with an already molded connector 11 or free stripped cable ends 5 is indiscriminately in

recorded a recording 4. An optical sensor 18 checks this plugging operation. If the mating process is not carried out, the starting of the molding process is basically prevented.

With the retraction of the cassettes 14; 16 in the Anformwerkzeug 17 and the associated production of the electronic Connections 3 and the protective conductor 13 drives the molding tool 17 together. In the cooling phase of the molding process is

the actual inspection stored. The test is carried out with a low voltage in the test electronics 1, via the

Connecting line 2 is connected to the receptacle 4 and the connection 3. First, the entoprechenden

sought electrical connections, e.g. Pin 19 of connector 11, to the corresponding socket 9 in

Forming tool 17, since an indiscriminate insertion on the receptacles 4 and 8 is a prerequisite for a high production quantity. Once the connection has been found, the actual testing of the individual wires begins. The passage will be checked up to

three wires, a possible short circuit between the wires and a possible interchanging of the protective conductor 12; 13 at

Grounding lines. All possible errors are electronically stored in the test electronics 1 and after completion

the test is a marking of the faulty line 7, in the special case, a severing of the line by a

Knife 15 in the cassette 16. The necessary knife 15 are integrated in the Anformwerkzeug 17 pneumatic

or hydraulic cylinders actuated.

Upon completion of the molding process (cooling phase) moves the Anformwerkzeug 17 apart and the cassettes 14; 16

will be changed automatically.

During the ongoing molding and testing process, the operator takes the finished leads or Harnesses 7 from the cassettes 14; 16 and places a new cartridge to be processed in a removable cassette. When removing the prefabricated leads or harnesses, the operator can faulty

sort out marked connection lines 7. A severing of the leads 7 ensures a high

Safety in sorting.

Claims (2)

1. A method for the electrical testing of Alischlußleitungen or wiring harnesses, in particular prefabricated, multi-wire, multi-pole leads or wiring harnesses, in which the test is carried out in a known manner by means of a simple electronics and known recordings and plugs, characterized in that during the test process first searching the corresponding electrical connections of the individual wires by random insertion on the receptacles (4) or (8) takes place independently and subsequently integrates the testing of the individual wires, during the molding process of the outer mold (10) is performed directly on the cooling phase and then an identification faulty connection lines (7) takes place. 2. A method for the electrical testing of assembled Anschiußleitungen or wiring harnesses according to claim 1, characterized in that the marking by separating the faulty connecting lines (7) by means of knives (15). For this 1 page drawing Field of application of the invention The invention relates to a method for the electrical testing of leads or harnesses, in particular prefabricated, multi-wire, multi-pole leads or harnesses, which are connected at their ends with male and female contact housings on passage of the individual wires, on confusion of the wires with the protective conductor on Short circuit of the wires with each other and short circuit of the wires with the protective conductor. Characteristic of the known state of the art It is known that ready-made leads or harnesses are tested individually or with digital electronics in parallel or multiplex. Are known multi-core cables and wires, such as interface lines for computer systems whose ends are assembled with standard connectors that have many individual contacts in a corresponding number of fields of a contact housing. The individual fields of a contact housing for the corresponding individual contacts are specified. In such a method for producing connectors, a continuity test in the same operation is not possible. For this reason, permutations, opens and shorts can look at the feit _tt jn finished cable are detected, which is carried out usually at a separate test station, which with jinem increased labor and time (eg. Intermediate storage or transportation) until the final inspection connected is. Furthermore, a method *:; has become known for the manufacture and testing of prefabricated, multicore cables, in which a plurality of receptacles associated with the individual production and test steps are provided. The test is carried out here using a program and control unit, which is connected via lines with the individual recordings (DE-OS 3608712). The disadvantage of this method is the relatively high control and control technical effort. In DE-OS 1540658 a method for producing harnesses and their testing is described in which harness boards or wiring harness mounting racks are successively passed through a number of processing and testing stations, wherein a plurality of assembled Einzelleitui gen are joined together to form a harness , The prefabricated individual cables and then the finished cable harness are tested on separate test rigs, which entails increased technical or technological effort. Object of the invention The aim of the invention is to find a simple method, with which the electrical testing of pre-assembled leads or harnesses can be performed without high technical and technological effort. Explanation of the essence of the invention The invention has for its object to develop a method with dom without separate test place the individual wires during the packaging process exactly checked for swap, passage and short circuit and errors can be displayed accurately. According to the invention, this object is achieved in that the first step is to search the corresponding electrical connections of the individual wires by random insertion on recordings and subsequently integrated the testing dor individual wires, during the molding process of the outer mold is performed directly on the cooling phase and then a Marking of faulty line is done. According to a further feature of the invention, the marking of the faulty line is carried out by separating the line by means of knives.