Method for providing manufacturing-related data in large-scale production of manufactured objects, especially automobiles

The invention relates to a method for providing provision of manufacturing-related data in a series Production of production objects, in particular of Motor vehicles.

In the manufacture of motor vehicles in a Series production it is known, each vehicle an assigned so-called car greeting card, and driving the convincing when passing through manufacturing sections in for example when passing through different Ab sections of the pre-assembly and final assembly accompanied, and this vehicle is permanently assigned. On the cart trace-card are in different Ferti tion sections of complaints in this produc supply sections employed workers registered. The se complaints, for example, errors in the components or groups used mass production concern of components. For example, in the Cart accompanying card be noted that a subject Component, for example, an air filter, is damaged or has some other error, for example, is dirty. The same applies to groups of construction share, for example, heaters or Klimaanla gen. Further, in the car accompanying map the lack be indicated by components when in a limited hours tem manufacturing section needed component not to Available.

After passing through the manufacturing sections Series production, the cars accompanying card from the Vehicle are removed, so that then a listing of this vehicle in question to complaints Available and specified in the vehicle accompanying the map necessary reworking, for example, the ERSET zen of defective components, the installation of missing compo le or other improvements, planned and in the Paths can be routed. After carrying out the Rework the car tracker card then for a certain period archived.

A disadvantage of this known method is is that the entry of the complaints on the Cart accompanying card consuming, tedious and error prone is because the cars accompanying map for the high number of components used in mass production into particular in motor vehicles is extensive. she can for example, from a plurality of DIN A4 sheets made what the orientation particular time pressure difficult.

A further disadvantage of the known method is that the turned on the car accompanying map transmitted complaints of workers to plan Rework is not available when the Cart accompanying card is otherwise in use, For example, if a worker just Eintragun applicant carries out adjustments on the car accompanying map. For this Reason, in the known method within the Manufacturing process contact points provided at which removed the car tracker card and the necessary Rework in accordance with the on the car accompanying map noted complaints of workers are planned. in the Result are the manufacturing-related data for the be planning rework only at the check points riding. This is impractical and difficult to plan the rework.

Through DE 691 02 882 T2 discloses a method of known species concerned, the one to control industrial plant used. In the known procedural ren are products zugeord electronic labels net, where manufacturing data stored are, the retrievable by a control device and heranziehbar for controlling the manufacturing process are.

A disadvantage of the known method is is that it and with respect to the detection Providing manufacturing-related data unflexi is bel.

The present invention addresses the problem provide a method for providing produc tion-related data in a serial production of Production objects, in particular of motor vehicles, indicate where the collection and provision the manufacturing-related data easily and flexibly is designed.

Instead of a car accompanying card of paper looks the invention provides a data acquisition device that, as well as the car accompanying card in the known Ver drive, a production object, for example a Motor vehicle is assigned. In the data collection device can in the different manufacturing sections worker manufacturing data in the form of Enter objections, provided in each Fer occurred account section an error. The A input signal can, for example via a keyboard or a Touchscreen data detection means take place.

The invention further provides that the data currency rend the manufacturing process at least partially by the data acquisition device to at least one zen spectral device are transmitted, what example as can be done by radio.

At the central facility are the ferti tion-related data then available centrally and can for planning any necessary Reworking be used.

Since the data according to the invention already during Manufacturing process at the central facility for Available, it is no longer required from to wait until a production object the entire Ferti tion process has undergone. The planning of Nacharbei th therefore can already be carried out at a time, to which the production object still within the Ferti reporting process is. This facilitates the planning rework considerably and leads to a Bridegroom sparnis and thus a cost saving.

The inventive method is particularly prior geous in mass production of motor vehicles usable. However, it is also in mass production any other production objects, for example, in the manufacture of electronic devices, in use bear. Thus, it is very versatile.

The data acquisition device can simply be be formed, for example, by a simple hand held computer. Since such computer durable and are robust, they can ver over a long period be used, which in terms of cost gün stig effect. A further advantage of the inventive SSEN method is that the production claim related NEN data as electronic data in the central A can be stored and archived direction. Anything that in the known method Relating to the archiving of cars accompanying map occur can thus be performed programmatically. This leads to a further time and cost savings.

An expedient development of the inventive KISSING doctrine provides that the data acquisition device the respective production object at the beginning of the first predetermined manufacturing section is allocated and that the data acquisition means of each Fer ment object up to a second predetermined produc supply section remains permanently assigned. In this way is between the first and the second predetermined Manufacturing section a fixed allocation of Datener detection device to the respective production object ensured, so that by identifying the data detecting device, the respective production object is identifiable.

The first and the second manufacturing section are selectable in accordance with the respective requirements. Advantageously, however located the first Ferti supply section in the direction of passage of Fertigungsob ject through the manufacturing sections in one of he first manufacturing sections and the second manufacturing section in one of the last manufacturing sections. Includes a series production of motor vehicles in for example, the manufacturing sections press shop, body shop, Paint, various portions of the pre-assembly, various portions of the final assembly, the quality assurance and final inspection, then the first Fer ment section pre-assembly and the second his Manufacturing section may be the final. The data detection device is then the vehicle after Ver let the paint associated with this Alloc voltage is maintained up to the final.

Another embodiment provides means which each instantaneous position of the respective data detecting device or the respective production Building within the serial production notice at least temporarily data to the central A transfer device that each Festge presented instantaneous position of the respective Datenerfas detection device and the respective manufactured object represent. In this manner, a particular Fer account object from the central facility from each time within the manufacturing sections localized.

A development of the aforementioned embodiment form provides that the means which respectively momen tane position of the respective data collecting device or of the respective manufactured object notice a plurality of mutually spaced in the range of Ferti supply portions arranged, stationary Empfangseinrich have obligations that each data acquisition device at least temporarily emits a registration signal time during passage through the manufacturing sections sequentially from different ones of the fixed Receiving means is received, such that the instantaneous position of the respective Datenerfassungsein direction or the respective manufactured object characterized it can be determined that it is determined by what the stationary reception devices in the registration signal the respective data detecting means currently Will be received. In this embodiment, logs each data acquisition device like a "Roaming method" in the stationary Empfangsein directions to thereby easily and reliably Way it can be established where a production object momen to the associated data acquisition device tan is.

Another development provides that together with the manufacturing-related data or separately therefrom Data is transferred, the for a code identifi cation of that manufactured object and / or derjeni gen data acquisition device contain, or from the from which the data originated.

Another development provides that the fer account-related data a code for identifying of the production portion in which this data is will give, and / or a code for identifying a worker active in this manufacturing section and / or a code for identifying a group ent bodies active in this manufacturing section machine operators hold. In this way, is to determine which of Who ker or group by workers a component or a group of components installed and optionally has objected.

The production-related data from the Da tenerfassungseinrichtung to the or each central Means wired or circuit-unbound in particular by radio or infrared radiation, transmis are gen. When can wireline transmission For example, on an assembly line electric transmis supply lines can be provided, with which the data detection device, for example via a Stec ker is connected. The example cable transmis tion, in particular by radio is simple, straightforward and fail-safe.

Advantageously, the production-related Data during the passage through the manufacturing sections transfer. The data transmission is thus simultaneously with the passage through the manufacturing sections. one of more development of the inventive teaching before that the data immediately after their entry into the data acquisition device to the central A direction are transmitted. The data is then available with only a slight delay after their Erfas sung at the central facility available.

One embodiment provides that the to a production object and / or a manufacturing sectionally associated data in temporal relation with leaving this manufacturing section by the production object, in particular during or shortly after leaving this manufacturing section to the zen spectral device are transmitted. In this way always takes a data transfer when a Fer is complete account section. This facilitates the planning of reworking in particular when several interrelated Nacharbei th, the one and the same manufacturing section Subject Author fen, must be performed.

According to another embodiment, the For information contact the central facility over carry. Thus in this embodiment determines the central facility to the time of data transmis tion.

According to another embodiment is attached to the Manufactured object or in spatial proximity to this an vorgese holder for the data acquisition device hen, wherein the transmission of data characterized begun is that the respective data acquisition device in the associated holder is stored. This holding tion may be formed in the manner of a docking station be, the data transfer respectively when depositing the data acquisition device in the docking station takes place.

The production-related data Example , be information that any information about the State of the manufactured object and / or used Components included. For example, the data contain information that a particular Component or a specific set of components in installed functional and perfect condition has been. Suitably, the fertigungsbezo related data but data that the presence of a Feh coupler on a component and / or the nature and / or location a fault at the component and / or the location of a Fault at the manufactured object and / or the absence of a component representing. In this execution form follows only production-related input Data in the data acquisition device and an over transmission of these data when an error has occurred, while when no error has occurred, no be data entered or transmitted. This verrin siege the scope of the inputted and to be transferred Data, thus saving time.

The data acquisition device can accordingly the particular requirements any Datenerfas have detection device. Thus, in the data for example via a keyboard or a keypad in the data acquisition device are input.

A particularly advantageous development provides but before that the data on a touch screen in the Data acquisition device can be entered. This he facilitates data entry and saves time because the Be serve on a keyboard or keypad reason is additionally no longer required.

According to another embodiment, the data may by means of a scanner for scanning a barcode in the data acquisition device are input. These Manner of data input is particularly fast and simple; However, it assumes that a Worker who enters the data, a corresponding bar code is available for scanning.

Appropriately, the Datenerfassungsein device for monitoring and / or control of the data entry display device to a. In this way is a visual control of data entry possible which reduces the risk of input errors.

Another advantageous further development, that on the display device or the touchscreen at least one input screen is displayed and that data entry by selecting an element or done more elements of the input mask. The data input is thus in this embodiment masks controlled, which facilitates the operation and time saves.

A particularly advantageous development of the front mentioned embodiment provides that in each Fer ment sections respectively corresponding to this Manufacturing section components used an input mask on the display device or the touchscreen is pictured. In the relevant input screen then offered only those points in the spe cial manufacturing section are required. To this Example, the data entry is further simplified and the reduced risk of input errors.

In principle, it is sufficient when using the available at the central facility Data required rework planned. A particularly advantageous development provides, however, that in the central device of the unterschiedli evaluated chen production objects derived data be and that after evaluating the data error data are generated, the information on the occurrence Construction used by errors in the serial production containing sharing and / or groups of components and that the fault data by the central device in Ferti supply areas are received, where jeweili gene produced components and / or groups of components and / or prepared and / or provided. In this way directly obtain feedback in those areas from which defective components or groups of components originate. in these areas can then adequate means who the order to eliminate the errors that occurred and to avoid. The evaluation may be in accordance with the jewei done time requirements in any way. It can present, for example, a statistical evaluation be taken that always feedback he demonstrates, if a certain number of errors or Def ler have occurred in a particular order.

In one embodiment, in the series production used an assembly line, where the under various manufacturing sections through in direction formed successive portions of the conveyor belt are.

Suitably, the Datenerfassungseinrich tions computerized data acquisition devices.

The invention is described with reference to the accompanying attached drawing explained.

It shows:

<b>Fig.</b> 1 is a schematic representation of an AB run a manufacturing process in the Manufacturing of motor vehicles, the used method of the invention becomes,

<b>Fig.</b> 2 to illustrate a mask gest your th data input on a touch screen of a data acquisition device illustrated mask and

<b>Fig.</b> 3 a on a touch screen of a data detection device shown schematic vehicle to the characteristic drawing up paintwork on the car convincing is, the data in question detection device is assigned.

In <b>Fig.</b> 1 is a schematic flow of a series manufacturing of production objects shown that by motor vehicles <b>10</b> are formed. The production complexes this through different manufacturing portions by, in this embodiment manufacturing sections <b>12</b> (Press shop), <b>14</b> (Structural work, Lackie rerei) <b>16</b> (Pre) <b>18</b> (Assembly), <b>20</b> (Quality assurance) and <b>22</b> (Final) are formed, each of these manufacturing sections, in particular the manufacturing sections <b>16</b> (Pre) and <b>18</b> (Assembly), may be divided into additional manufacturing sections. In the manufacturing sections <b>12</b> to <b>22</b>That by un ferent areas of a not in the drawing closer assembly line shown are formed, fully pulls the manufacturing of motor vehicles <b>10</b>, in which in each section <b>12</b> to <b>22</b> each he provided ford variable components or assemblies be and installed by workers.

According to the invention each production object a Data acquisition device <b>24</b> assigned to at the sem embodiment by a in the drawing not illustrated, hand-held computer a touchscreen <b>32</b> is formed and a transmitting and having receiving means through a radio formed transmitters and receivers.

The logical assignment of a particular Datener detection device <b>24</b> at a certain driving force stuff <b>10</b> is effected in that a Wagenkennummer this Motor vehicle in the data acquisition device <b>24</b> is inputted. This input can for example the a keyboard or a scanner take place, with which a on the motor vehicle <b>10</b> mounted barcode scanned is representing the Wagenkennummer. The scanner may be separate from the data acquisition device <b>24</b> in a separate facility can be arranged. The Cart identification number is then suitably for assignment a data acquisition device <b>24</b> to the vehicle to übermit the respective data acquisition device mined. The spatial association of Datenerfassungsein direction <b>24</b> to a motor vehicle <b>10</b> is carried out by that on the motor vehicle <b>10</b> or in close proximity For this purpose, a holder in the manner of a docking station is provided, into which the data acquisition device <b>24</b> can be stored.

In the in <b>Fig.</b> 1 Ausführungsbei shown game is the production object (motor vehicle <b>10</b>) to Beginning of a first predetermined Fertigungsabschnit TES, which in the exemplary embodiment by the produc supply section <b>16</b> is formed, a data acquisition facility <b>24</b> assigned to the motor vehicle to a second predetermined manufacturing section, in the embodiment of the manufacturing section <b>22</b>. assigned remains fixed and the motor vehicle <b>10</b> thus during passage through the manufacturing sections <b>10</b> to <b>22</b> accompanied.

Where a worker that a component or a module has a fault, for example, a malfunction or an error, the opti interferes's impression, or that a component or Assembly is completely absent, so is the question Improvement in more detail below on the manner explained touchscreen <b>32</b> the data acquisition device <b>24</b>, the the subject motor vehicle <b>10</b> is associated with data in the data acquisition device <b>24</b> , which before the are of a fault at a component and / or the type and / or the location of a fault at the component and / or the location of a fault at the manufactured object and / or the lack of a component representing. The nature and , The input is described below with reference on the <b>Fig.</b> 1 and 2 explained in more detail. The on this Way input data from the data detection device <b>24</b> by transfer means, in this embodiment by the wireless transmitter are formed to a central facility <b>26</b> about wear, the emp data by means of a radio receiver catches. is, together with the manufacturing-related data In this embodiment, a code for identifi cation of the data acquisition device <b>24</b> or the motor vehicle <b>10</b>, Which this Datenerfassungseinrich tion <b>24</b> assigned, transferred. Further data transmitted that a code identifying the Fer ment section in which the data entered WUR to contain. Furthermore, the data can code to identify an in this manufacturing section active worker and / or a code for identifying a group of active in this manufacturing section Machine operators included.

The transfer of data can immediately after whose input done. However, it can also Example then be carried out when the respective motor vehicle <b>10</b> one of the manufacturing sections <b>16</b> to <b>22</b> leaves and enters the subsequent production phase.

In this way are available for each of the in the Manufacturing process located at the ends vehicles zen tral device manufacturing data for Availability checked tion, by which after any necessary Kings are already working at the time planned NEN, to which the motor vehicle in question still in the manufacturing process in one of Ferti supply sections <b>16</b> to <b>22</b> is. This facilitates the planning of such reworking and saves Costs.

Characterized in that each data acquisition device <b>24</b> a motor vehicle <b>10</b> is permanently assigned, passes they the manufacturing sections together with the force vehicle <b>10</b>, It is therefore not necessary that the Workers carry a data acquisition device with him. The data acquisition device can be either to the A Transmission from the motor vehicle <b>10</b> be removed or even remain in this. In addition, if required in the manufacturing process but still improvement be provided, which is always a Datenerfassungseinrich tion <b>24</b> carry. To identify the power vehicle in this case is the operator before the start data entry the the motor vehicle assigned Wa genkennummer a.

The data input into the data acquisition device <b>24</b> carried out in simple and rapid manner.

The production-related data in the zen spectral device <b>26</b> programmatically archived who the. Furthermore, the different Datener constitutional institutions <b>24</b> and thus of unterschiedli chen production objects derived data in the zen spectral device <b>26</b> are evaluated, and after the evaluation of the data error data is generated can, the information on the occurrence of Feh learning to use in series production components contain and / or groups of components. This error data can then, for example, also by radio, by the central device in production areas, For example, in the paint shop <b>14</b> or the pressing plant <b>12</b> are received, in which the respective components and / or groups of components manufactured and / or are prepared and / or provided. To this Example, in the production areas measure measures are taken to the errors or to eliminate bottlenecks.

Also the data transfer are the Data to the data acquisition device <b>24</b> continue to Available. You can therefore either the Datenerfas accessed detection device by a worker at any time or, for example, by a corresponding require- tion of the central facility <b>26</b>Again to this be transmitted.

The establishment of the central <b>26</b> evaluated Data can also in areas <b>28</b> or. <b>30</b> transfer be where planned rework required are respectively performed.

In <b>Fig.</b> 2 schematically shows a touchscreen <b>32</b> of the Data acquisition device <b>24</b> shown on which at Operating a mask <b>34</b> is pictured.

In the embodiment, the control is carried out the mask <b>34</b> such that by means not shown with tel is detected, in which the production sections <b>12</b> to <b>22</b> the motor vehicle <b>10</b>, the This data acquisition device <b>24</b> assigned, is. It is then for each manufacturing section a custom mask <b>34</b> shown in which only those components or assemblies Eingabemöglichkei th be made available, which in this produc tion sections are installed. is In this way, data entry made simple and the risk of Incorrect entries decreases.

In <b>Fig.</b> 2 is an input mask for the produc supply section <b>16</b> shown, in a matrix <b>36</b> having disposed fields, where the rows of Ma trix different components, for example the Are assigned to the air filter and the columns of the matrix different error types are assigned. In which Embodiment according <b>Fig.</b> 2 are under twelve different error types provided, the type of fault "1" for example, it is clear that the question Component is missing.

Where a worker in the manufacturing section <b>16</b> for example, found that the air bag is absent, so touching he on the touch screen <b>32</b> in the matrix <b>36</b> the one field that the component "airbag" and the fault type "1" (part missing) is assigned. This Field's <b>Fig.</b> 2 by a black square <b>38</b> sym metabolised. The corresponding data are then transferred to the central facility <b>26</b> transfer.

Optionally, at the touch of a Fields of the matrix <b>36</b> a selection mask <b>38</b> Open as this in <b>Fig.</b> 2 for the field <b>42</b> is shown, which the associated component "air filter" and the fault "8" is. The selection mask<b>38</b> may further selection possible opportunities offer, for example, the location of a fault on a component to characterize in more detail. The Auswahlmas ke <b>38</b> may be constructed so that the location of the Feh coupler on the component by touching a single Fel of the selection mask <b>38</b> can enter, as in <b>Fig.</b> 2 by a cross <b>44</b> symbolized.

On the touch screen <b>32</b> Still other data be displayed, for example, an identification number of the Motor vehicle and the input location, so the manufacturing section, as in <b>Fig.</b> is shown. 2

erforder If for example in paint defects is sible to identify the location of the fault more closely, can on the touch screen <b>32</b> a schematic view <b>46</b> of the vehicle <b>10</b> are displayed as shown in <b>Fig.</b> is shown 3rd The place of paint flaws can be then by touching corresponding portions of depicting ment <b>46</b> of the vehicle <b>10</b> featuring, in about <b>Fig.</b> 2 corresponding manner when touching the touch screen <b>32</b> a selection screen may appear, in which the paint error can be specified in more detail yet, Example instance as to whether it is a one scratches, Bulge or a dent is.