KR100487100B1 - Method for manufacturing of wire harness - Google Patents

Abstract

The present invention relates to a method for performing the production of a wire harness, and more particularly, a circuit diagram designed using a program called Mentor Graphic for a wire harness mounted on a vehicle designed after a new vehicle is designed by an automobile maker. In the field of producing wire harnesses, a schematic is created using a program of Mentor Graphic, and then the CATIA E3D (capable of designing electric field) is modeled using the schematic data, and a form board is used. It is about how to manufacture wire harnesses by producing manufacturing instructions such as cutting charts and unit specifications from Unix using the Fomboard data.

Description

METHOD FOR MANUFACTURING OF WIRE HARNESS}

The present invention relates to a method for performing the production of a wire harness, and more particularly, a circuit diagram designed using a program called Mentor Graphic for a wire harness mounted on a vehicle designed after a new vehicle is designed by an automobile maker. In the field of producing wire harnesses, a schematic is created using a program of Mentor Graphic, and then the CATIA E3D (capable of designing electric field) is modeled using the schematic data, and a form board is used. Production of wire harnesses for manufacturing wire harnesses to be produced by outputting manufacturing instructions such as cutting charts and unit specifications from Unix directly using the fomboard data. It is about a method.

In general, a wire harness is a bundle of electrical wires in which a plurality of wires are bundled into one and a contact terminal is formed at both ends of the bundled wires. Mainly used.

In addition, the frequency of use of wire harness is gradually increasing in the trend of increasing the attachment of various electronic devices in order to improve the convenience of the current cars.

Looking at the production and manufacturing process of the wire harness that has been conventionally used in the past with the above functions, when a new vehicle is designed by an automobile maker, the circuit design team uses a Mentor Graphic program to install the wire harness to be mounted on the vehicle. Design circuit diagrams for the length and quantity of wire harnesses to be mounted.

With the primary work on the quantity and length of the wire harness as described above, the site and the cooperative company instructs the production request to the output as a plurality of drawings designed in two dimensions in which the circuit diagram only shows the lines and lengths.

In the field or a partner company, after receiving the drawings as described above, the drawings were reviewed, the drawing management server was established, and the worker manually recreated the drawings by using the CAD program.

After rewriting the drawings, several drawings are needed to produce the wire harness on-site, that is, the manufacturing instructions, cut main, unit specification, jig, schematic, group diagram (GROUPING, DRAW). 'G: Drawing enlarged in detail in order to facilitate the work process) and splice diagram (SPLACE DRAW'G: Drawing showing the branching point where the wire harness is separated in detail). The wire harness was produced in the field required.

In order to produce the wire harness as described above, it is important to mark the drawings so that the drawings can be easily understood even in the field, but it is most important to accurately understand the drawings designed in the laboratory of the automobile maker to prevent parts procurement and defective products. It takes about 15 to 30 days to recreate the drawing, and the parts are manufactured at the site where the wire harness is manufactured if it is misunderstood by the operator or missing when redrawing the drawing into CAD. This resulted in various problems, such as the automakers supplied with wire harnesses, which did not properly procure parts and thus did not work smoothly.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is a circuit diagram designed using a program of a mentor graphic on a wire harness mounted on a designed vehicle after a new vehicle is designed by an automobile maker. In the field of producing wire harnesses, a schematic is created using a program of Mentor Graphic, and then the CATIA E3D (capable of designing electric field) is modeled using the schematic data, and a form board is used. Method for producing wire harnesses that can manufacture wire harnesses by outputting manufacturing instructions such as cutting charts and unit specifications from Unix directly to the wire harness production site using fomboard data To provide.

Referring to the configuration and operation of the present invention in detail with reference to the accompanying drawings as follows.

1 is a block diagram showing the overall configuration for producing a wire harness according to an embodiment of the present invention, Figure 2 is a progress of an instruction design tool (Tool) for producing a wire harness according to an embodiment of the present invention A flowchart showing the process is shown.

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As shown in FIGS. 1 and 2, a method for producing a wire harness of the present invention includes a program of Mentor Graphic for a wire harness mounted on a vehicle designed after a new vehicle is designed by an automobile manufacturer. The schematic is designed using the Mentor Graphic program at the site where the wire harness is produced, and then the CATIA E3D model is used to model the CATIA E3D. Using the formboard data, a wire harness is produced by directly outputting a manufacturing chart such as a cutting chart (a list containing the length and information of the line color for processing the wire harness) and a unit-specific specification from Unix. Turn over to site and manufacture wire harness.

Referring to the method according to the process for producing a wire harness of the present invention in detail.

The circuit design team and layout team of the automobile manufacturer's lab design and create wire harnesses for the circuit diagram, layout diagram, equipment diagram, and assembly diagram, respectively, and then the Mentor Graphic LCABLE program. Generate circuit diagram by inputting circuit data through.

As shown in FIG. 3, three-dimensional (E3D: three-dimensional electric field) modeling of CATIA is performed through the circuit data of the circuit diagram generated as described above.

The model of E3D is not a simple three-dimensional model, but the circuit information of the vehicle model and the item, that is, the line number (name or number of the wire harness line), the line diameter (size (size) of the line of the wire harness), the line type (the line of the wire harness). Type), the line color (wire color of the wire harness), the part number of the connector, and the length information of each line number.

Create a 2D (2D) form board model with a three-dimensional (3D) electric field model of E3D including the above information, and receive the model file from the car manufacturer and manufacture it with data without remodeling Create manufacturing instructions using the design program.

The execution method of the program is as follows.

First, load the circuit data from CATIA, select the relevant model and item and set it to use the related circuit data.

Function uses E3LCABLE and IMPEXP, then CONNECTOR LIST and From-to list wire The left and right positions of the table), the option table (a table listing the subsidiary materials and items used for each specification), and the dimension are created using the H3VENDOR Function program.

When the above operation is completed, the circuit data related to the model file is received and the manufacturing design tool program is executed.

The manufacturing design tool tool is executed when a cut main is input in a terminal window of AIX as shown in FIG. 4, and a menu is a cut chart of six manufacturing instructions. , Unit specifications, jig diagrams, circuit diagrams, group diagrams (GROUPING, DRAW'G: partially enlarged drawings to facilitate the work process), splice diagrams (SPLICE DRAW'G) A detailed illustration of the branching points being separated).

Looking at the details of the manufacturing design tool (TOOL) program, first select the vehicle model and the item to create a manufacturing design instruction, and then select the top CAR & HARN button as shown in FIG.

The HARN is referred to as a harness or an item, and refers to a state in which a related part is separated from a wire harness of an entire vehicle such as an engine part, a front door part, a rear door part, and a battery part in a car.

After selecting the model and the item to be produced by the car maker and the wire harness, select the Part No button, and the part number corresponding to the selected model and item is listed. PART NO).

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If there is a design change number (NO), enter the corresponding design change number (NO) (if there is a design change), enter the information if a new manufacturer, model, or item is generated.

This completes the creation of the manufacturing design directive.

For example, as shown in FIG. 6, when the CUT SHEET button is selected, a window is generated, which is a window for inputting data required to generate a cut chart. The basic directory is set by selecting the model and the item.

Each file looks like this:

First of all, it is a file required to check line number by PART NO. Second is circuit data of line diameter, line type and line color of each line number, third is housing database file, and fourth is database file of terminal. .

The terminal database stores information such as minimum and maximum diameters of wires, dimensions, and required seals.

The above five files generate a cutting chart as shown in FIG.

The generation of the cutting chart may include a first step of selecting a vehicle model and a part number of the harness, a second step of reading a harness list (Harn_list) file according to the vehicle model, and storing data (Data), and reading the lc_hmc_length file and reading the data ( A third step of storing data, a fourth step of reading the lc_cws_wl file and storing data, and a fifth step of checking whether a slice, a shield, a twist, a double crimp or not And a sixth step of comparing and processing the housing and the housing database (Housing & Housing DB), and a seventh step of comparing and processing the terminal and the terminal database (Terminal & Terminal DB).

The lc file generates a model file generated by E3D modeling as a 2D formboard model, and uses a connector list, a from-to list, and an option table using an H3 function. When you create a file, the data related to the wire harness is saved in the file lc_cws_wl.

The cutting chart lists the types of line number, wire diameter, line color, line type, length, left and right terminal information, SEAL, and strip length.

After the cutting chart is printed, the bill_of_material file is read, the housing data is processed, the opt.new file is read, the subsidiary data are compared, and stored as a raw unit data file to store the raw unit specification as shown in FIG. Create

As shown in FIG. 9, when the button of the unit specification is selected, the generation of the unit specification is selected like the cut chart, and the file required for generating the unit specification is selected and is set as a default. have.

To set up the unit specification, read bill_of_material file containing housing information used for each item, process housing data, read opt.new file containing subsidiary materials information, and process subsidiary data. In the original specification, the materials used and the number of codes for each code number are listed.

FIG. 10 illustrates a jig diagram of the present invention. As can be seen from the screen shown in FIG. 4, when the drawing jig in the catia is selected, coloring information and length information of each terminal are displayed and executed.

When the wire harness is produced by outputting the drawing generated as described above and immediately delivering it to the site, it takes 15-30 days, which is a period of rewriting and drawing as in the prior art, to be completed within 3 days. It can be produced in the inside and can prevent problems such as omissions that may occur when a worker rewrites the drawing.

11 is a screen configuration diagram showing an embodiment of the entire process of the present invention.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Therefore, the present invention receives a drawing output in two dimensions directly from the automobile maker when producing the wire harness, and receives a file without rewriting, and then runs a separate program to generate a manufacturing design instruction for producing a wire harness By delivering drawings to the site to produce wire harnesses, the time required to produce wire harnesses is reduced by 1/5 or more compared to the existing ones. This has the effect of producing a harness.

1 is a block diagram showing the overall configuration for producing a wire harness according to an embodiment of the present invention;

2 is a flow chart showing the progress of the instruction design tool for producing a wire harness according to an embodiment of the present invention;

3 is a screen configuration diagram of a state in which circuit data is loaded from Catia according to one embodiment of the present invention;

4 is a block diagram showing a cut main in the terminal window according to an embodiment of the present invention,

5 is a screen configuration diagram showing a car and harness executed in a cut main according to one embodiment of the present invention;

6 is a screen configuration diagram showing a cutting chart generation according to an embodiment of the present invention;

7 is a screen configuration diagram showing a cutting chart list in the state of executing FIG. 6 according to one embodiment of the present invention;

8 is a screen configuration diagram showing the configuration to generate a unit-specific statement according to an embodiment of the present invention;

9 is a screen configuration diagram showing a unit-specific statement list in the state of executing FIG. 8 according to one embodiment of the present invention;

10 is a screen configuration diagram showing the generation of a jig diagram according to an embodiment of the present invention;

11 is a screen configuration diagram showing an embodiment of the entire process of the present invention.

Claims (5)

After designing a new vehicle at an automobile manufacturer, a circuit diagram designed using a program of Mentor Graphic is used for the wire harness mounted on the designed vehicle. The circuit diagram is produced using a program of Mentor Graphic at the site where the wire harness is produced. Creates a, Using the schematic data, the CATIA E3D (Function of Electrical Design) can be modeled. Production of wire harnesses characterized by manufacturing wire harnesses by outputting manufacturing instructions such as cutting charts and unit specifications from Unix directly using formboard data. How to do it. According to claim 1, the model of E3D is not a simple three-dimensional model, but the circuit information of the vehicle model and the item line number (wire harness line name or number), wire diameter (wire diameter of the wire harness (size), line type) (Type of wire of wire harness), part number of wire color (wire color of wire harness) connector, and attribute information related to length information of each line number are included. 2. The function of claim 1, wherein the function for importing circuit data from CATIA and selecting related vehicles and items and using the related circuit data is performed using E3LCABLE and IMPEXP. CONNECTOR LIST: The shape and name of the connector being used, the From-to list, and the option table. Method for performing the production of wire harnesses, characterized in that the generation of materials, items, etc.), dimensions, etc. are generated using an H3VENDOR Function program. The cutting chart of claim 1, wherein the cutting chart includes a first step of selecting a vehicle model and a part number of the harness, a second step of reading a harness list (Harn_list) file according to the vehicle model, and storing data, and reading the lc_hmc_length file and reading the data. A third step of storing, a fourth step of reading the lc_cws_wl file and storing data, a fifth step of checking whether a slice, a shield, a twist, a double crimping, a housing and a housing Performing the production of the wire harness comprising the sixth step of comparing and processing the database (Housing & Housing DB) and the seventh step of comparing and processing the terminal and the terminal database (Terminal & Terminal DB) Way. delete