Modular Wire Processing Center

Abstract

To provide a novel wire processing center.SOLUTION: The invention relates to a wire processing center including a plurality of individual processing modules that are controlled by a central control unit. The plurality of processing modules are designed as independently operable individual processing units and are positioned with the control unit on a mobile platform. Each of the plurality of processing modules is configured to process a plurality of wires having different diameters. The control unit and the plurality of processing modules are designed so that the plurality of wires having different diameters can be assembled successively in any order.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a modular Wire Processing Center (WPC) for assembling wires to be laid in, for example, a switch cabinet. [Background technology]

[0002] With this type of WPC, wires and cables can be fed, cut to length, marked and crimped with terminals such as ferrules. The assembled wires are then usually bundled and stored in a storage system. Such a center is disclosed, for example, in patent document 1. The actual assembly of the wires is carried out by a unit in the form of a dedicated machine which allows the aforementioned work sequence. Such units have a very complex structure and can be adapted to different manufacturing processes only with great effort. Moreover, such dedicated machines are relatively expensive and require a large installation space within the production line.

[0003] A similar solution is described in the patent DE 10 200 43 336. This document discloses an apparatus for producing wire harnesses in which the wires / cables are fed by a wire feeder and the terminals are fed by a separate feeder. The wires are cut to length by a cutter and the terminals are crimped in an automatic crimping machine. For further processing, the assembled wires are moved through a measuring and feeding device. The crimping head and the forming tool that receives the terminals during crimping are configured as separate units, while the cutter is integrated in the unit that receives the crimping head. This apparatus exhibits the same drawbacks as the dedicated machine mentioned above.

[0004] In the patent application EP 1 339 633 A1 a method and an apparatus are disclosed in which the ends of wires can be crimped with terminals and / or the other ends can be pressed into connectors. The apparatus used for this purpose comprises a wire feeder in which the wires are cut to length and the respective terminals are stripped for contact with the crimp terminals or connectors. The cutting to length is carried out by a cutter and the cut-to-length cables / wires are then bent into a U-shape and placed in an intermediate store where the wires are fed to another press-fitting / crimping device.

[0005] This solution is also a special purpose machine specifically designed for a given purpose. Patent document 4 relates to a machine for processing wire harnesses, which has a cutter, a stripper, a crimping unit of some kind and a device for connecting to connectors. This solution is also designed as a dedicated machine and is not adaptable to various manufacturing processes or requires a considerable effort.

[0006] A more flexible solution would be to provide, instead of dedicated machines, modular units in which the individual processing steps (cutting to length, marking, stripping, crimping, bundling) are carried out by an operator. Crimping is carried out by a crimping machine, as is known, for example, from the applicant's US Pat. No. 5,399,433, which serves to press ferrules onto the stripped wire terminals. Said ferrules are in known solutions wound as webbing onto a reel magazine and from there fed to the crimping head via a transport unit. Alternatively, the ferrules or terminals can be received loosely in a storage and then fed to the crimping head at a defined position via a suitable feeding device. Such a feeding device is described, for example, in US Pat. No. 5,399,433.

[0007] In known solutions, the ferrules to be crimped are attached to the stripped wire terminals by a holding unit and then pressed in via a crimping head. Stripping of the wire terminals can be performed externally or via a stripping head integrated into the crimping machine.

[0008] Each of the aforementioned modular units is typically a stand-alone unit that operates independently of other processing units, for example because it is provided with its own drive unit. The construction of a transport unit for transporting ferrules arranged on a webbing or other electrical components is described, for example, in the applicant's US Pat. No. 5,399,633. A similar transport unit is also disclosed in the US Pat. No. 5,399,633.

[0009] No. 5,399,633 shows a mobile unit capable of placing the terminals to be processed in the form of a dedicated machine in the area of ​​a fixed wire assembly device. In series production, various wire cross sections and electrical components / terminals have to be pressed into one another and then integrated in a subsequent installation step, for example when mounting a switch cabinet. For this purpose, basically two options are offered: in one variant, the crimping machine is either re-mounted to press in the different wire cross sections and / or terminals (ferrules) or alternatively, several crimping machines are provided to process the different wire cross sections / terminals. The first solution requires long set-up times and considerable personnel costs. This disadvantage is overcome in the latter solution by several crimping machines, but the investment costs are very high.

[0010] US Pat. No. 5,399,433 discloses an apparatus (in the form of a stripper, crimper) capable of processing different wire cross sections and ferrules. For each ferrule, a reel magazine and a dedicated crimper are provided, with a joint drive that can optionally operate one of the crimpers assigned to the former. Such a solution requires high costs in terms of devices, since several crimpers have to be provided and controlled.

[0011] The applicant's patent application EP 1 133 633 A1 shows a crimping machine which eliminates the aforementioned drawbacks, comprising a storage system with a multi-reel magazine, to which is assigned a common transport unit and a common crimping head, so that the expenditure on the device is certainly reduced compared to the aforementioned solutions.

[0012] The applicant's patent application EP 1 099 636 A1 discloses a crimping machine in which the terminals to be crimped are led directly to the operating area of ​​the stripping or crimping head, without any interconnected feeding device etc. In this known solution, the terminals are preferably stored in a reel magazine, so that the crimping machine is configured to include an isolating device.

[0013] Patent document 13, also by the applicant, shows a crimping machine in which different ferrules are held available in a storage system with several reel magazines. A transport unit is assigned to each of said reel magazines, in which a preselected ferrule is transported in each case to a transfer position. The separated ferrules are then guided by a shuttle to the joint crimping head.

[0014] This crimping machine is distinguished by a high productivity, however certain drawbacks are recognized in the fact that the shuttle required has a relatively complex structure, requires associated installation space and stripping is not possible.

[0015] Due to the high proportion of manual work, the requirements on the workers during assembly, and especially during the subsequent laying of the wiring in the switch cabinets, are relatively high and errors cannot be excluded. [Prior art documents] [Patent documents]

[0016] [Patent Document 1] U.S. Patent No. 8,442,664 [Patent Document 2] European Patent Application Publication No. 0132092 [Patent Document 3] U.S. Patent No. 6,662,444 [Patent Document 4] U.S. Pat. No. 5,878,469 [Patent Document 5] German Patent No. 4440835C1 [Patent Document 6] DE 19831588 A1 [Patent Document 7] German Utility Model No. G9308266.5 [Patent Document 8] German Patent Invention No. 19714964C1 [Patent Document 9] US Patent Application Publication No. 2010 / 0293780 [Patent Document 10] German Patent Invention No. 102004057818B3 [Patent Document 11] German Patent Application Publication No. 102015119217A1 [Patent Document 12] DE 102017118968 A1 [Patent Document 13] German Patent Application Publication No. 102015102060A1 Summary of the Invention

[0017] On the other hand, the underlying objective of the present invention is to provide a Wire Processing Center (WPC) that ensures flexible wire assemblies with high reliability of the manufacturing process. This object is achieved by a WPC comprising the features of claim 1.

[0018] Advantageous developments of the invention are the subject of the dependent claims. Therefore, a modular wire processing center (WPC) is proposed, which is configured to include a central control unit for controlling a plurality of processing modules. The control is performed in response to production data that can be predetermined by a CAE system or can be entered manually. The processing module is therefore an automatic crimping machine, and at least two additional processing modules are used from the group of automatic cutter, marking system, stripping unit, terminal supply, wire supply unit and wire discharge / bundling unit. The substantial modules, in particular the automatic cutter, the marking system and the automatic crimping machine, are preferably configured as separate processing units (standalone units) originally designed for stand-alone operation. The processing modules and the control unit are preferably accommodated on a mobile or non-fixed platform so that the WPC can be moved to the desired mounting location, for example located adjacent to a switch cabinet.

[0019] This modular structure helps WPC to be adapted very flexibly to different production jobs - starting with a basic unit such as an automatic crimping machine and then gradually complementing it with additional processing modules. This modular structure therefore enables even smaller companies to handle complex production tasks with minimal investment.

[0020] The control unit and processing module can be designed to allow the sequential assembly (in sequence) of wires / cables with different diameters, lengths and terminals. In a particularly preferred exemplary embodiment, a handling system is used to transport the wire between or to the processing modules.

[0021] In one embodiment, the feeding unit is assigned to an automatic cutter and automatically feeds wire with a specific cable cross-section and cuts said wire to a predetermined length with the automatic cutter.

[0022] The cut lengths of wire can then be removed from the automatic cutter or storage tray by a handling device such as a robotic arm or linear unit and moved to a positioning unit, where a cable marker can be applied which is removed from the marking system (printer) by the handling device or another handling device and applied to the wires held in the positioning unit. The same handling device or another handling device can be utilized to feed the marked wires to an automatic crimping machine, which then feeds the crimped wires with terminals, e.g. ferrules, for further attachment steps or places them in a wire holding system.

[0023] In one variant of the invention, the control unit comprises an IPC, preferably having a touch display. According to the invention, the stand-alone processing modules are preferably configured with a control unit or interfaces for connecting to each other.

[0024] The wires assembled by WPC can be placed relative to one another, preferably on a rake-shaped wire holder, on which the pre-assembled wires are held in a predetermined order. Alternatively, the assembled wires can be bundled.

[0025] A particularly flexible positioning of the WPC is ensured if the platform is in the form of a tool and gear wagon and can be moved very easily to the laying site. The handling system may be a robot, a rotary table or any other unit for transporting the wires to be assembled to the individual processing modules.

[0026] Exemplary embodiments of the invention are illustrated in detail below as schematic diagrams. [Brief description of the drawings]

[0027] [Figure 1]FIG. 1 shows a block diagram of a modular wire processing center. [Diagram 2] FIG. 2 shows a block diagram of a more complex wire processing center. [Diagram 3] FIG. 3 shows a block diagram for explaining the manufacturing process in a wire processing center according to the invention. [Figure 4] FIG. 4 shows a particular exemplary embodiment of a wire processing center according to the invention in a first expansion stage. [Diagram 5] FIG. 5 shows a variant of the exemplary embodiment according to FIG. 4, which includes a modified automatic cutter. [Figure 6] FIG. 6 shows a detailed view of the automatic cutter according to FIG. [Figure 7] FIG. 7 shows a particular exemplary embodiment of a wire processing center according to the invention in a first expansion stage. [Figure 8] FIG. 8 shows a particular exemplary embodiment of a wire processing center according to the invention in a first expansion stage. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] The basis for the wire assembly by the modular wire processing center (WPC) 1 described below is represented by existing CAE data transmitted to the WPC 1. Said CAE data includes information on the wires to be assembled, such as wire diameter, wire length, type of marker applied, type of ferrule, etc. Such CAE systems are known, for example, under the name ePlan®. According to FIG. 1, via the CAE system, the wiring data is then transmitted to the WPC 1 via a suitable data transmission, for example via a network or in a simpler solution, a USB memory. The WPC 1 comprises a central control unit, for example formed by an IPC 2, which is configured to include suitable software for the control of the processing modules. As explained at the beginning, the processing modules are stand-alone units, which are originally operated in a conventional manner as stand-alone units. The difference with conventional stand-alone units is that the individual processing modules are designed to be controlled by the aforementioned common control unit, so that the individual processing modules designed for individual tasks can be operatively connected and operated via said control unit, so that even complex manufacturing tasks can be addressed by an appropriate selection of the processing modules.

[0029] Figure 1 shows another software tool called WPC tool, through which the communication between the in-house hardware and the WPC 1 takes place. Said software tool, in particular the IPC 2, includes all appropriate interfaces, such as for example a USB interface, a network interface, an input interface and preferably a touch display to allow inputting all necessary data.

[0030] The manufacturing data generated by the IPC 2 is then transmitted to the individual processing modules, which then process said information for the wire assembly in response to the given CAE data. In the illustrated exemplary embodiment, the WPC 1 comprises an automatic cutter 4 of the initially described design, a marking system 6 and an automatic crimping device 8, where the wire ends are stripped and crimped with ferrules or other terminals.

[0031] The control / coordination of the process modules, which were originally designed for stand-alone operation, is now carried out centrally via IPC2, and the individual process modules can transfer data to each other via appropriate interfaces.

[0032] An automatic cutter 4 is provided for cutting individual conductors / wires (e.g., single-core, multi-core, multi-core, or ultra-fine core) with different outer diameters. Each wire is marked by a marking system 6. In the illustrated exemplary embodiment, the marking system 6 includes a printer for labeling the wires or markers applied. Thus, the labeling position and number of markers for each wire, as well as the labeling text and labeling color, are predetermined by the IPC2.

[0033] Of course, the individual wires may have different colors and the WPC1 according to the invention allows assembling all variations in any order, thus making it possible to produce wires with predetermined lengths designed according to the requirements.

[0034] The WPC tool is essentially a work preparation software available on the customer's PC, enabling for example the import function from ePlan®. The PC is then connected to the IPC2 for data transfer.

[0035] The entire WPC 1 is preferably placed on a tool and gear wagon, not shown in FIG. 1, and can then be moved to the immediate vicinity of the switch cabinet or any other suitable location.

[0036] As will be shown in detail below, said tool and gear wagon allows a compact arrangement of the aforementioned processing modules. Means for collecting cut cables may also be provided. The modules are arranged in the tool and gear wagon such that the sequence of processing steps is arranged according to optimal ergonomic aspects.

[0037] The tool and gear wagon includes, for example, a preferably swiveling IPC holder. Furthermore, all connector strips for power, USB, HDMI, network, resources, etc. are provided. Furthermore, the tool and gear wagon may be provided with drawers / trays for portable tools and additional trays for documents. Basically, even a supply of wire material may be provided in the tool and gear wagon. Also, the tool and gear wagon may further house ferrule rollers.

[0038] In one example embodiment, the assembled wires are placed on a wire holding / sorting system, e.g., in the form of a rake. The wire sequences provided to the switch cabinet can then be placed on said system with appropriate labeling.

[0039] 2 shows a modification of the aforementioned exemplary embodiment in which many more processing modules are provided. The central control is again carried out via the EPC 2. The processing modules provided are a wire feeder 10, an automatic cutter 4, a marking system 6, an automatic crimper 8, a further automatic stripper 12, a bundling unit 14 for bundling the assembled wires, and a central handling system 16, by which the wires are transported between the individual processing modules.

[0040] All of the above components are preferably located together on a tool and gear wagon or any other movable platform. The processing modules are connected to each other and to the EPC2 via suitable interfaces and suitable networks for data exchange, allowing virtually any wire assembly task to be handled very flexibly.

[0041] 3 shows a typical manufacturing process with a WPC 1 according to the invention. Thus, the wire to be processed is fed by a wire feeder 10, which feeding can again be carried out by a handling system 16. In the automatic cutter 4, the wire is cut to a predetermined wire length and subsequently marked by a cable marker made in the marking system 6, then stripped and crimped with ferrules in the automatic crimping machine 8. The wire is transported between the individual processing modules via the handling system 16.

[0042] The assembled wires are then bundled or placed on the aforementioned rakes or directly via a handling system or a worker in the switch cabinet. The worker may be provided, for example via a VR system, with suitable information defining the laying position of the individual wires in the switch cabinet, enabling him to carry out the laying of the wires in a predetermined sequence in a minimum of time and with virtually no errors. In a variant of the invention, the laying can even be carried out by additional robots or the like.

[0043] 4 shows a specific exemplary embodiment of a wire processing center (WPC1) constructed according to the above-mentioned concepts. Thus, an automatic crimper 8 designed with an integrated automatic stripper 12 including an automatic cutter 4, an IPC 2, and an extended stage including a marking system 6 are used.

[0044] In the illustrated exemplary embodiment, the units are mounted on a mobile platform configured as a tool and gear wagon 18. Said tool and gear wagon has four lockable rollers 20, which allow the tool and gear wagon 18 to be placed in areas such as switch cabinets, thus facilitating the laying of cables on site. The tool and gear wagon 18 comprises a rack on which is fixed a substantially horizontally arranged work plate 22, on which, for example, an automatic crimping machine 8 and an automatic cutter 4 are fixed or arranged. On the support frame 24 of the tool and gear wagon 18 extending to the rear side, supply terminals such as pneumatic connection strips 26 and power taps 28 for the current and resource supply of said processing modules are arranged.

[0045] As can be seen from FIG. 4, the IPC 2 is adjustably held on the support frame 24 by the IPC holder 30 so that an operator can adjust the IPC 2 and its screen to a relative position suitable for each task so as to constantly monitor the screen.

[0046] The marking system 6, which includes and is supported, for example, by a label feeder and printer 38, is supported by a console 32 on which the marking system 6 rests, which is further fixed to a substantially vertical support frame 24 of the tool and gear wagon 18. The aforementioned components 2, 4, 6, 8 (12) are connected to a power tap 28, which is connected, respectively, to a pneumatic connection strip 26. Furthermore, as previously mentioned, the IPC 2 is connected to the in-house network via a network terminal. Of course, the EPC 2 may also be in the form of a stand-alone solution.

[0047] As indicated at the beginning, the tool and gear wagon 18 containing the aforementioned processing modules is moved into the mounting area and then connected to the power and resource supplies provided therein, so that all components are supplied with power and resources.

[0048] In the area below the work plate 22, cable reels 34a, 34b, 34c, 34d and 34e with wires designed with different wire cross sections are arranged. Typically, wire cross sections of 0.34 mm, 0.5 mm, 0.75 mm, 1.0 mm, 1.5 mm, 2.5 mm or 4.0 mm are processed, so that for example a cable reel 34 with five of said cross sections can be provided. Basically, it is also possible to configure two or more cable reels with mostly the required wire cross section, so that the WPC 1 can be operated for a relatively long time without the need to change the cable reel.

[0049] The cable reels 34 are preferably arranged on the racks of the tool and gear wagon 18 so that the individual wires can be easily reached by the worker or, in the case of automatic production, the wires can be guided to the respective processing units via guides of simple construction, as will be explained in more detail below. In principle, it is also possible to hold the wires by their wire ends in the area of ​​the automatic cutter 4 in the wire holder, so that the wires can be easily grabbed by the worker.

[0050] In the area of ​​the automatic crimping machine 8, storage trays 36 for cut-to-length or assembled wires are provided. As mentioned above, the above-mentioned components / processing modules are connected to resource connections such as pneumatic connection strips 26 and / or power taps 28 and fixedly placed on the tool and gear wagon 18. The tool and gear wagon 18 supporting the WPC 1 and containing the above-mentioned components is then moved to a switch cabinet and connected to the resource supply / power and, if necessary, the IPC 2 to the indoor network via a network connection.

[0051] The wiring data required to execute each work order can be prepared, for example, on an external personal computer and transferred to the IPC2 via a network connection. In a simpler solution, the wiring data can be transferred to the IPC2 via a suitable data carrier, such as a USB memory stick. Alternatively, the wiring data can be generated by entering it directly into the EPC2.

[0052] The operator then selects the desired operation (work instruction) if necessary, and the program starts accordingly, and the aforementioned processing modules, in particular the automatic cutter 4, the marking system 6, and the automatic crimping machine 8 (automatic stripper 12) are appropriately programmed according to the work instruction.

[0053] As mentioned above, five wires with different wire cross sections are stored in the tool and gear wagon 18. Depending on the work instructions communicated to the operator via the screen of the IPC 2, the corresponding cable is introduced into the automatic cutter 4, which displays the cable information to the operator. Corresponding to the programming of the automatic cutter 4, the respective wire is then cut to a predetermined length. After being cut to such length, the wire is then stacked by the operator in a storage tray 36. When the program is started as mentioned above after selecting the desired work, the printing information is also sent in parallel by the IPC 2 to the marking system 6, more precisely to the printer 38 of the marking system 6, so that the latter prints the labels and the appropriate cable markers are prepared. The latter are then manually picked up by the printer 38 and fixed to one end of the wire or, if necessary, to both ends.

[0054] Depending on the task, cross-section information and crimping information are also transferred via the EPC 2 to the automatic crimping machine 8 (in this case with the integrated automatic stripper 12). Corresponding to these specifications, through the device control, the correct cross-section corresponding to the wire to be processed is appropriately adjusted on the automatic crimping machine 8 / automatic stripper 12. The EPC 2 can then read out that the crimping unit is correspondingly programmed and ready for operation.

[0055] An operator then inserts the first wire end into the automatic crimper 8 / automatic stripper 12 to strip the wire end and crimp a selected ferrule onto the wire according to specifications. As indicated at the beginning, in the exemplary embodiment shown, the automatic crimping machine 8 has a storage system including five reel magazines 40, each with webbing having a specific ferrule diameter. Depending on programming via the IPC 2, a given ferrule or any other terminal is separated via a separating device and then fed to the joint crimping head of the automatic crimping machine 8 for crimping. Details of said automatic crimping machine 8 and the dedicated automatic stripper 12 are described in the applicant's patent application WO 2005 / 023363 mentioned at the beginning.

[0056] After the crimping process, the operator removes the wire from the automatic crimping machine 8 and, if desired, feeds a second wire end of the wire into the automatic crimping machine 8 for another crimping process. After crimping one or both sides, the assembled wires are removed and stored in a wire retention system, not shown. Then, corresponding to the installation procedure predetermined by the IPC, a worker removes the individual wires from said wire retention system and installs them in the switch cabinet.

[0057] FIG. 5 shows a modification of the exemplary embodiment according to FIG. 4, in which only the automatic cutter 4 and the supply of wire from the cable reel 34 have been changed compared to the previous solution, and only these differences will be described below, for the rest you can refer to the above description.

[0058] Figure 6 shows a detailed view of the automatic cutter 4 used in the exemplary embodiment according to figure 5. As already explained, said automatic cutter is fixed to the work plate 22 of the tool and gear wagon 18, the front plate 44 of which contains adjustment elements 46, 48 for manual adjustment of the automatic cutter 4. However, in the illustrated exemplary embodiment, the adjustment is not performed via said adjustment elements 46, 48 but via an internal machine control controlled by the IPC 2.

[0059] In Fig. 6, two drive rollers 50a, 50b are shown superimposed in the vertical direction (representation of Fig. 6) of the transport unit, which act by friction on the corresponding wire 42 to transport the latter in the longitudinal direction of the wire, the transport length being determined by the corresponding control of the IPC 2 and the drive rollers 50a, 50b. Viewed from the transport direction, following the drive rollers 50a, 50b, a cutting unit 52 is provided which comprises two cutting jaws 54, 56 displaceable in the horizontal direction (see arrows in Fig. 6) and which comprise cutting blades 58, 60 designed to be able to cut all wire cross sections to a predetermined length. The basic structure of the cutting unit 52 and the drive rollers 50b is known and therefore no further explanation is necessary.

[0060] In the illustrated exemplary embodiment, the five wire sections are guided via guides not shown to a supply unit 62 where each wire section is processed, and then each wire section is positioned relative to a transport unit with drive rollers 50a, 50b and relative to a cutting unit 52.

[0061] In the illustrated exemplary embodiment, the feed unit 62 has an adjustment carriage 64 that is adjustable laterally to the axis of wire transport and in the direction of the arrows on a carriage guide 66 to align each of the wires 42a, 42b, 42c, 42d or 42e with respect to the drive rollers 50a, 50b. The adjustment may be electric, pneumatic, hydraulic or any other, of course designed with positional accuracy to allow a predetermined positioning with respect to the drive rollers 50a, 50b and the cutting unit 52.

[0062] The cut lengths of wire 42b are then discharged via an inclined transport platform 66 and stored in a storage tray 36, either automatically or by an operator. In contrast to the aforementioned exemplary embodiment, the wire cross section to be processed is not selected manually. The selection is made by appropriate control of the feed unit 62, depending on the selection of the desired operation after the start of the program. Then, as previously described, the adjustment carriage 64 is displaced laterally corresponding to the specification until the wire to be processed, for example the wire 42b, is aligned relative to the working area of ​​the drive rollers 50a, 50b. The wire to be processed is thus aligned approximately tangentially relative to the drive rollers 50a, 50b, and is therefore drawn into the gap between the two rollers 50a, 50b. Basically, it is sufficient that one of the two drive rollers 50a, 50b is driven, while the other drive roller simply serves as a backstop.

[0063] In the illustrated exemplary embodiment, the drive rollers 50a, 50b are configured to include a means for ensuring that the two drive rollers 50a, 50b are moved apart before operative engagement to facilitate the relative positioning of the wire section to be cut to length. The drive rollers 50a, 50b are moved apart and lifted via a mechanism not shown in response to a control signal of the IPC2. After moving the adjustment carriage 64 to the desired relative position (alignment of the wire 42b to be processed), the drive rollers 50a, 50b are returned to their original position to frictionally engage with the wire 42b. As a result, the drive rollers 50a, 50b are controlled by their rotation to move the wire 42b so that its end protrudes somewhat from the cutting blades 58, 60 of the cutting unit 62. In a next step, the cutting unit 52 obtains a defined starting point for the cut to length process to control the cutting of the wire in the region of the wire end. In a next work step the drive rollers 50a, 50b are controlled corresponding to the desired wire length.

[0064] Feeding can be further improved if the adjustment carriage 64 is also adjustable in the wire direction, allowing lateral and longitudinal adjustment to precisely introduce each wire into the gap between the drive rollers 50a, 50b.

[0065] The drive rollers 50a, 50b are controlled so that a wire portion of a predetermined length moves past the cutting blades 58, 60. As soon as the predetermined length is reached, the drive of the drive rollers 50a, 50b is stopped and the cutting unit 52 is driven to cut to length. As already explained, the wire cut to length (here wire 42b) then slides out of the working area of ​​the cutting unit 52 along the delivery platform so that the subsequent process of cutting to length is not impeded. Marking and crimping are performed as in the previous exemplary embodiment and do not require further explanation.

[0066] FIG. 7 shows another extension stage of the exemplary embodiment according to FIG. 6, designed with a feeding unit 62 for the automatic feeding of the wire 42 to be processed. 7, the cut to length wire is automatically removed. As previously discussed, the cut to length wire 42 is temporarily stored, either automatically or manually, such as by accumulating in the storage tray 36.

[0067] As shown in Fig. 7, the carriage 68 on which the two gripping devices 70, 72 are supported is guided in an area arranged on the work plate 22 or parallel to the work plate 22. The carriage 68 with the two gripping devices 70, 72 is adjustable along a linear unit 74, preferably approximately in the longitudinal direction of the wire 42. To allow the length and height of the wire to be adapted to different cross sections, the gripping devices 70, 72 are adjustable in the direction of the arrow, i.e. transversely to the adjustment direction or in the direction of the distance a. The gripping elements of the two gripping devices 70, 72 and the actuators of the gripping devices 70, 72 are designed in such a way that the gripping devices 70, 72 can grip and hold the wire 42 in the area of ​​their ends.

[0068] After cutting to length, the wire 42 is then picked up by the gripping devices 70, 72 and the carriage 68 is moved to the required transfer position via the linear unit 74. By controlling the gripping devices 70, 72 with the IPC 2, the wire 42 cut to length, for example the wire 42b (see FIG. 6), is either taken over directly to the automatic cutter 4 or in the storage tray 36. As a result, the carriage 68 is displaced via the linear unit 74 towards a positioning unit 76 where the wire 42b is stored. This positioning unit 76 has two gripping positions 78, 80 where the wire ends are stored / gripped, so that the wire cut to length is held in an extended position. For each wire length a different positioning unit 76 may be provided. In principle, however, it is also possible that the gripping positions 78, 80 are adjustable so that different lengths can be processed with one positioning unit 76.

[0069] After placing the cut-to-length wire 42 in the positioning unit 76, the carriage 68 is brought back again by the linear unit 74. The gripping devices 70, 72 are then controlled to grab / take over the wire markers created in parallel in the marking system 6 by the printer 32. By further controlling the actuators of the linear unit 74 and the carriage 68, said wire markers are automatically applied to one or both ends of the wire 42b such that the wire 42b is properly marked.

[0070] After applying the wire marker, the marked wire 42b is gripped by the grippers 70, 72 and moved to the automatic crimping machine 8 by suitable control of the linear unit 74 and the gripper actuator. The grippers 70, 72 are then controlled such that the wire end to be stripped and crimped is inserted into the feed opening 82 of the automatic crimping machine 8, so that the aforementioned stripping and crimping with the corresponding ferrule occurs. During the aforementioned crimping process, the wire 42 preferably continues to be held by the grippers 70, 72. If the other end of the wire 42 is also to be crimped with a ferrule, the gripper wire 42 is rotated about 180 degrees by suitable control of the grippers 70, 72 and said other end is inserted into the feed opening 82 for stripping and crimping.

[0071] After the above crimping process, the wire is finally removed via the gripping devices 70, 72 and fed to the next work step. In this way, for example, the crimped wire can be stored in the wire holding system described above.

[0072] In the illustrated exemplary embodiment, a handling device is described having two gripping devices 70, 72, the actuators of which are arranged in the area of ​​a carriage 68 adjustable by a linear unit 74. Naturally, instead of this mechanism, a different handling device, such as a robot, can also be used to carry out the aforementioned work steps in an automated manner.

[0073] 8 shows a variant in which, instead of a handling device comprising a linear unit 74, a carriage 68 adjustable by the linear unit 74 and grippers 70, 72 supported on said carriage 68, a robot arm 84 is used, at the tip of which two gripping devices 70, 72 are held. The robot arm 84 is designed with a working area that allows it to carry out the above-mentioned manufacturing steps, namely taking over the wire cut to length from the automatic cutter 4 and storing it on the positioning unit 76, taking over the wire marker from the marking system 6 and transferring it to the wire end of the wire marker, as well as feeding the marked wire 42 to the automatic crimping machine 8 (automatic stripper 12) and transporting the crimped wire 42 to the next processing step.

[0074] Basically, it is also possible to have more than one handling device carry out the individual sub-steps: for example, it is conceivable that a wire marker is attached to the wire 42, which is placed in the positioning unit 76, after having been taken over from the printer 38 (marking system 6) via a further handling device.

[0075] Essentially, the cut lengths of wire can also be transferred via suitable handling devices, such as grippers 70, 72, to the marking system 6 where they can be directly marked.

[0076] The degree of automation can be developed further so that the assembly of the wires is practically possible without the manual intervention of the worker. However, the latter has the possibility of being corrected by intervention, due to the representation of the mounting process on the IPC2. The assembled wires can then be processed directly in the switch cabinet, and with the aid of wire markers the desired mounting position of each wire is indicated to the worker on the IPC2, so that incorrect mounting is practically eliminated. In principle it would also be possible to carry out this final mounting in an automated way in the switch cabinet, where each wire is provided, for example, by a handling device, and the wires concerned simply need to be mounted / connected.

[0077] A substantial advantage of the modular system according to the invention is that existing automatic machines can be integrated into the WPC1 with little effort and the different expansion stages can be carried out gradually, so that the investment costs can be adapted to the respective needs in a relatively flexible manner.

[0078] The present invention relates to a wire processing center that includes a plurality of individual processing modules controlled by a central control unit. [Explanation of symbols]

[0079] 1…WPC 2. IPC 4…Automatic cutter 6. Marking system 8…Automatic crimping machine 10...Wire feeder 12…Automatic stripper 14…Binding unit 16…Handling system 18…Tool and gear wagon 20…Roller 22…Work plate 24…Support frame 26…Pneumatic connection strip 28…Power strip 30…EPC holder 32…Console 34…Wire reel 36…Storage tray 38…Printer 40…Reel magazine 42…Wire 44…Front plate 46…Adjustment factors 48…Adjustment factors 50…Drive roller 52…Cutting unit 54…Cutting Jaw 56…Cutting Jaw 58…Cutting blade 60…Cutting blade 62…Supply unit 64…Carriage adjustment 66…Carriage guide 67...Transport platform 68…Carriage 70...Gripping device 72...gripping device 74...Linear units 76... Positioning unit 78…Clamp position 80…Clamp position 82…Supply opening 83…Robot arm

Claims

1. 1. A modular wire processing center (WPC), comprising: a central control unit for controlling a plurality of processing modules in response to production data predetermined by a CAE system or manually inputted, The plurality of processing modules include: One processing module, which is an automatic crimping machine; one additional processing module being a supply unit for supplying a wire having a wire cross section from a storage location for wires having a plurality of wire cross sections to one of the processing modules; at least one additional processing module selected from the group consisting of an automatic cutter, a marking system, a stripping unit, a terminal feeder, and a wire discharge / bundling unit; the processing modules are designed as individual processing units operable independently and are arranged together with the central control unit on a movable platform; Each of the plurality of processing modules is configured to process a plurality of wires having different diameters; the control unit and the processing modules are designed to sequentially assemble the wires having different diameters; 13. A modular wire processing center, wherein said movable platform is a tool and gear wagon.

2. The modular wire processing center of claim 1 , further comprising a handling system for transporting said plurality of wires between said plurality of processing modules.

3. The modular wire processing center of claim 1 or 2, wherein the control unit is an IPC configured to include a touch display.

4. 4. The modular wire processing center of claim 1, wherein the processing modules have interfaces for connecting to the control unit, to each other, and to at least one of a network.

5. 5. A modular wire processing centre according to any one of claims 1 to 4, comprising a holding system for receiving wires assembled in a predetermined sequence.

6. The modular wire processing center of claim 2 , wherein the handling system is a robot, a linear unit including a gripping device, or a rotary table.

7. 7. A modular wire processing centre according to any one of the preceding claims, comprising a positioning unit for storing cut-to-length wire.

8. 8. A modular wire processing centre as claimed in any preceding claim, comprising a storage tray for cut-to-length wire.

9. The modular wire processing center of claim 1 , wherein the one processing module of the plurality of processing modules is an automated cutter.

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