JP6322377B2 - Wire harness production system and wire harness production method - Google Patents

Description

  The present invention relates to a wire harness production system and a wire harness production method that include a coloring unit for coloring an electric wire covering portion with a coloring material in the system configuration.

  An electric wire for transmitting electric power and signals includes a conductive metal conductor and an insulating resin insulator that covers the conductor. In the electric wire having such a configuration, the conductor may be referred to as a core wire or an electric wire conductor portion, and the insulator may be referred to as a covering or an electric wire covering portion. Since the electric wire is used to transmit electric power and signals as described above, the material, thickness, and configuration of the conductor and the material, thickness, etc. of the insulator differ depending on the application. For example, in the case of a conductor, copper, a copper alloy, aluminum, an aluminum alloy, or the like is employed. Then, a strand is made of such a material, and a conductor is formed by simply bundling or twisting the strands. Alternatively, the conductor may be formed of a single-core structure instead of a strand. The thickness of the electric wire is expressed by, for example, a conductor cross-sectional area, and varies from a small one to a large one. In addition, the thickness of an electric wire changes with the number of the said strands. On the other hand, for the insulator, a resin material is selected in consideration of heat resistance, weather resistance, chemical resistance, wear resistance, flame resistance, and the like. In addition, the thickness is appropriately set in order to ensure insulation. From the above, it can be seen that there are various types of electric wires.

  In some cases, a single electric wire is used, but in the case of an automobile (moving body), many electric wires are used. Many electric wires are used as what comprises a wire harness. To explain wire harnesses, automobiles are equipped with various electronic devices that enable the basic performance of a car, that is, the ability to run, bend and stop, as well as safety, convenience, and comfort. These various electronic devices are operated by electric power from the battery and a control signal, and a wire harness is responsible for transmission of the electric power and the signal. The wire harness requires various types of wires (length, thickness, insulator material) depending on the type of device, the value of the current to be passed, the position of wiring, and the like.

  For example, if the external appearance of the electric wire itself is the same, it is very difficult to manufacture the wire harness including a large number of electric wires of various types. In addition, when connecting the devices, an erroneous connection may occur. In addition, maintenance may be hindered. Therefore, in order to identify various types of electric wires, it is common to color or mark the electric wire covering portion. The disclosed technology of the following Patent Document 1 is based on the applicant of the present application, and is shown for coloring and marking in a proposal of a method for manufacturing a wire harness.

  Briefly describing the disclosed technology of Patent Document 1 below, in the method of manufacturing a wire harness, a step of manufacturing an electric wire, a step of cutting the electric wire, a step of removing the electric wire covering portion, a step of crimping and connecting terminal fittings, case fitting It is characterized by coloring or marking to obtain information necessary for these steps immediately before each step.

  In the disclosed technology of Patent Document 1 below, if it is attempted to apply to various types of electric wires, a line including all of the above steps is required for each electric wire type, or in other words, for each line. Since a coloring apparatus is required, there are problems that a large space for installing the manufacturing apparatus has to be secured, and that the manufacturing cost increases.

  Although the applicant of the present application has proposed the technique disclosed in Patent Document 2 below, at least two coloring devices and marking devices are required in the process of producing one sub-harness, and therefore two lines are required. Since this is necessary, the above problems cannot be solved.

Japanese Patent Publication No. 7-1645 Japanese Patent No. 4035105

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wire harness production system and a wire harness production method capable of downsizing equipment used for production and reducing the cost thereof. To do.

In this invention made | formed in order to solve the said subject, in the wire harness production system which contains the coloring unit for coloring an electric wire coating | coated part with a coloring material in a system structure, as a system structure of the front process side rather than the said coloring unit , Collecting and holding each wire terminal of a plurality of types of wires, and selecting a desired wire type from each of the wire terminals held in the wire terminal set and selecting the type of the selected type A selected wire drawing portion that draws the wire as a selected wire from the wire terminal assembly portion, and further, as a system configuration of the wire harness production system, the length of the selected wire drawn by the selected wire drawing portion is detected. A measuring section for cutting, a wire cutting section for cutting the selected electric wire with a length indicated based on the measuring section of the measuring section, and a cutting section for cutting by the wire cutting section. The terminal stripped portion that peels off both ends of the cut and cut electric wire thus obtained to expose the wire conductor portion, and the wire conductor portion exposed by the terminal stripped portion corresponds to the wire type A terminal mounting portion for attaching a plurality of types of desired terminal fittings, and an electric wire holding rod for holding the scale-cut electric wire obtained by the electric wire cutting portion for the number of electric wire types and several minutes required for one sub-harness production, An electric wire U-shaped set portion for setting each of the cut and cut electric wires in a substantially U shape at a desired position of the electric wire holding rod, and the electric wire holding rod is moved toward the terminal peeling portion and the terminal mounting portion. An electric wire holding rod moving part, and the electric wire U-shaped set part is drawn out by the selected electric wire drawing part in order to project the both ends of the scale cut electric wire to the arrangement side of the coloring unit. Pulling the selected wire A first mechanism for reversing the orientation of the terminal on the leading end side by 180 degrees while holding the terminal on the leading end side, and a pulling rear end side of the scale-cutting electric wire obtained by cutting by the wire cutting part A second mechanism for holding the terminal, a third mechanism for carrying and setting the terminal at the leading end of the drawer reversed by the first mechanism to a desired position of the wire holding rod, and the second mechanism A fourth mechanism for carrying and setting the terminal on the rear end side of the drawer held by the mechanism to a desired position of the electric wire holding rod, and the third mechanism and the fourth mechanism include a wire harness In order to prevent entanglement of the wires during assembly or to consider the order in which the terminal fittings are inserted during sub-harness production, the middle of the wire is crossed with the scale-cut wire previously held by the wire holding rod. Is possible It is the mechanism which makes an effective set position into each said desired position .

  According to this invention which has such a characteristic, an electric wire terminal gathering part and a selection electric wire drawing-out part are included as a system configuration of the previous process side rather than a coloring unit. In the electric wire terminal assembly portion, electric wire terminals of a plurality of types of electric wires are collected and each electric wire terminal is held. In the selected electric wire lead-out portion, the electric wire is selected based on the electric wire type to be colored by the coloring unit, and is drawn out from the electric wire terminal assembly portion as the selected electric wire. The drawn wire is then colored by the coloring unit. According to the present invention, by changing the selection of the electric wire type, even if a plurality of types of electric wires constituting one sub-harness are flowed to the subsequent process side, it is possible to color with one coloring unit. In other words, even when a plurality of types of electric wires are required and produced, it can be colored with one coloring unit.

According to the present invention, even when producing a plurality of types of electric wires constituting one sub-harness, it is possible to perform a series of steps up to the attachment of terminal fittings in a single flow. It is possible to produce a sub-harness by coloring with one coloring unit in the process.
According to the present invention, the part to be processed in the process after cutting is directed in one direction. In addition, a plurality of scale-cut electric wires set in a substantially U shape at a desired position of the electric wire holding rod, when the coloring process is performed on the terminal peeling portion and the terminal mounting portion by the electric wire holding rod moving portion Is transported towards the coloring unit. Therefore, the process after cutting becomes easy and the production efficiency can be improved. In addition, unlike the present invention, a production in which the scale-cutting electric wires flow to the subsequent process one by one is also conceivable, but the present invention does not impede this.

  Further, in the present invention, a rear identification electric wire group having a plurality of rear identification electric wires with terminals obtained by attaching the terminal fittings by the terminal attachment portions and coloring the electric wire covering portions by the coloring unit. The first system configuration group to be produced, the terminal fitting in the rear identification electric wire group, the terminal insertion portion that accommodates the corresponding connector housing cavity, and the first system configuration group and the terminal insertion portion are disposed between the first system configuration group and the terminal insertion portion. And a stock portion for stocking the rear identification wire group.

  According to the present invention having such a feature, a rear identification wire group having a plurality of rear identification wires with terminals is produced in the first system configuration group. The post-identification electric wire group obtained by the first system configuration group is stocked in the stock portion before the terminal fitting is inserted into the connector housing. Therefore, the production speed can be adjusted after the terminal fitting is attached and before the terminal fitting is inserted into the connector housing.

  Moreover, this invention is the wire harness production system of the said invention. WHEREIN: The post-identification with a terminal obtained by attaching the said terminal metal fitting with the said terminal attachment part, and coloring the said electric wire coating | coated part with the said coloring unit A first system configuration group that automatically produces a group of rear identification wires having a plurality of wires, and the terminal harness in the rear identification wire group is automatically accommodated in a cavity of a corresponding connector housing, so that the sub-harness is partially A second system configuration group to be produced, and a third system for completing the production of the sub-harness by manually accommodating the terminal fittings not automatically accommodated in the second system configuration group in the corresponding connector housing cavity. The sub-her that has been partially produced by being arranged between a configuration group and the second and third system configuration groups Characterized in that it comprises a second stock portion for stocking the scan, the.

  According to the present invention having such a feature, in the first system configuration group, a rear identification wire group having a plurality of rear identification wires with terminals is automatically produced. In the second system configuration group, the sub-harness is partially produced automatically. On the other hand, in the third system configuration group, the sub-harness is produced manually (by an operator) so as to be completed. The subharness obtained by the second system configuration group is stocked in the second stock section. Therefore, with such stock, the production speed can be adjusted between the automatic system configuration group and the manual system configuration group.

  The wire harness production system according to the present invention is characterized in that a plurality of types of the terminal fittings are supplied to the terminal mounting portion.

  According to the present invention having such a feature, even when a plurality of types of electric wires and a plurality of types of terminal fittings are required, the sub-harness can be manufactured by coloring with one coloring unit.

Moreover, this invention made | formed in order to solve the said subject is before the said coloring process is performed using a coloring unit in the wire harness production method including the coloring process which colors a wire coating part with a coloring material. Collecting each wire terminal of a plurality of types of wires and holding each wire terminal in the wire terminal assembly portion; and selecting a desired wire type from each of the wire terminals held in the wire terminal assembly portion. And selecting the selected type of electric wire as a selected electric wire from the electric wire terminal assembly part, and further, as the wire harness production method, the electric wire terminal assembly part drawn out by the selected electric wire extraction part a step of Kenshaku the length of the selection wires, and cutting in lengths instructs the selection wires, the cutting is one sub-harness test length cut wire obtained by the process A step of setting each of the wire types and several minutes required for production in a substantially U-shape at a desired position of the wire holding rod, and peeling both ends of the measuring wire to expose the wire conductor portion. A step of attaching a desired terminal fitting to the wire conductor portion by a terminal attachment portion capable of attaching a plurality of types of terminal fittings so as to correspond to the type of electric wire, a step of exposing the wire conductor portion, and the terminal A step of moving the wire holding rod for the step of attaching a metal fitting, and the measure-cut wire is substantially U-shaped to project both ends of the measure-cut wire to the arrangement side of the coloring unit. In the step of setting each of the terminals, the terminal of the leading end of the selected wire drawn out by the selected wire leading portion is held 180 degrees while the terminal of the leading end of the leading end is reversed 180 degrees, A step of holding the terminal on the trailing end side of the drawn cut-out electric wire obtained by cutting in the cutting step, and a set of the inverted terminal on the leading end side of the drawing lead to a desired position of the electric wire holding rod And a step of carrying and setting the held terminal on the rear end side of the drawer to a desired position of the wire holding rod, and carrying the terminal on the leading end side of the drawer to a desired position of the wire holding rod. In the step of setting in the step, and the step of carrying the terminal on the rear end side of the drawer to the desired position of the wire holding rod, in consideration of preventing the entanglement of the wires when assembling the wire harness, In order to consider the order in which the terminal fittings are inserted, a set position where the middle of the wire can be crossed with the scale-cutting wire held in advance by the wire holding rod The process is performed with each of the desired positions.

  According to the present invention having such characteristics, two steps are included before the coloring step. In the first step, the electric wire terminals of the plurality of types of electric wires are collected in the electric wire terminal assembly portion, and the electric wire terminals are held in the electric wire terminal assembly portion. In the second step, a selected wire of a desired wire type is drawn from each wire terminal aggregate. After the selected electric wire is drawn, the electric wire covering portion is colored by a coloring step. According to the present invention, by changing the selection of the electric wire type, even if a plurality of types of electric wires constituting one sub-harness are caused to flow to the subsequent process side, the coloring can be performed in one coloring step. In other words, even when a plurality of types of electric wires are required and produced, the sub-harness can be produced by coloring in one coloring step.

According to the present invention, even when producing a plurality of types of electric wires constituting one sub-harness, it is possible to perform a series of steps up to the attachment of terminal fittings in a single flow. Coloring can be performed with one coloring unit in the process.

  According to the present invention, even when a plurality of types of electric wires are produced with one sub-harness, the sub-harness can be produced by coloring with one coloring unit. Therefore, according to the present invention, there is an effect that the equipment used for production can be made more compact and its cost can be reduced as compared with the prior art.

It is a basic lineblock diagram showing the wire harness production system of the present invention. It is a basic composition figure showing the 1st system composition group. It is a figure which shows the state which set the measurement cut | disconnected electric wire to the electric wire holding rod. It is a figure which shows the state which colored the electric wire terminal. It is a figure which shows the state which peeled off the electric wire terminal. It is a figure which shows a back identification electric wire group. It is a figure which shows a subharness (the middle). It is a figure which shows a subharness. It is a block diagram which shows a wire harness production system (Example). It is a perspective view which shows the external appearance of a wire harness. It is a figure which shows an electric wire terminal and a coloring part. It is a block diagram which shows a 1st system configuration group. It is an expanded block diagram which shows an automatic subset cutting machine. It is a block diagram which shows a coloring unit. It is a block diagram which shows a terminal wiping part. It is a block diagram which shows a coloring unit main-body part. It is explanatory drawing which shows the adhesion state of a coloring material. It is a block diagram which shows a drying part. It is the block diagram etc. which show the design confirmation part and the confirmation method. It is effect | action explanatory drawing which shows a terminal peeling part. It is effect | action explanatory drawing which shows a terminal attachment part. It is a block diagram which shows the 1st system configuration group which changed arrangement | positioning of the coloring unit. It is a block diagram which shows the 1st system configuration group which changed arrangement | positioning of the coloring unit.

  FIG. 1 is a basic configuration diagram showing a wire harness production system of the present invention. FIG. 2 is a basic configuration diagram showing the first system configuration group of FIG. Further, FIG. 3 is a diagram showing a state in which a scale cut electric wire is set on an electric wire holding rod, FIG. 4 is a diagram showing a state in which the electric wire terminal is colored with respect to FIG. 3, and FIG. FIG. 6 is a diagram showing a rear identification electric wire group, and FIGS. 7 and 8 are diagrams showing sub-harnesses.

  In FIG. 1, a wire harness production system 1 is a system for producing intermediate products such as sub-harnesses constituting a wire harness, and the system shown in FIG. 1 is sub-harness 2 (intermediate production) shown in FIG. Product) is shown. Hereinafter, description will be given with reference to FIGS.

  The configuration up to the production of the sub-harness 2 (see FIG. 8) includes the first system configuration group 3, the second system configuration group 4, the third system configuration group 5, the first stock unit 6, and the second The stock part 7 and the third stock part 8 are included (assumed to be an example, other examples will be described later).

  In the first system configuration group 3, a plurality of rear identification electric wires 9 with terminals (rear identification electric wire group 10) are obtained as components constituting the sub-harness 2 shown in FIG. A colored portion 11 is formed on the post-identification electric wire 9 with a terminal as a post-identification portion effective for the production of the sub-harness 2. The colored portion 11 is formed by using the coloring unit 12 and coloring the wire covering portion 13 with a coloring material. As the first system configuration group 3, in addition to the coloring unit 12, the electric wire terminal assembly portion 14, the selected electric wire drawing portion 15, the measuring portion 16, the electric wire cutting portion 17, and the terminal peeling portion 18 , A terminal mounting portion 19, an electric wire holding rod 20, an electric wire U-shaped set portion 21, and an electric wire holding rod moving portion 22. In FIG. 2, the coloring unit 12 is disposed between the wire cutting part 17 and the terminal peeling part 18. In addition, the arrangement of the coloring unit 12 may be adjusted to a position before and after the measuring portion 16 or after the terminal mounting portion 19.

  In the electric wire terminal gathering part 14, the electric wire terminals 24 of the plural types of electric wires 23 wound around the reel are collected, and the electric wire terminals 24 are respectively held. In the selected electric wire lead-out portion 15, the electric wire 23 is selected based on the type of electric wire constituting one sub-harness 2, and is drawn out from the electric wire terminal assembly portion 14 as the selected electric wire 25. The drawn selected electric wire 25 is then cut to a length designated by the electric wire cutting unit 17 to become a scale cut electric wire 26. The measuring wire 26 is set in a substantially U shape on the wire holding rod 20 by the wire U-shaped set portion 21, and at this time, the set position of the terminal with respect to the wire holding rod 20 is, for example, between wires at the time of assembling the wire harness. Consideration is given to prevention of entanglement, and consideration is given to the order in which the terminal fittings are inserted when the sub-harness 2 is produced.

  The scale cut electric wire 26 is wiped off a certain range of the outer surface of the electric wire covering portion 13 at this terminal, and the main body portion of the coloring unit 12 is colored with respect to the wiped portion. The colored portion 11 is inspected at the design confirmation portion of the colored unit 12.

  In the terminal attachment portion 19, a terminal fitting 27 is attached, whereby the rear identification electric wire 9 with a terminal is obtained. The rear identification electric wires 9 with terminals become the rear identification electric wire group 10 in a state where a plurality of electric wires 9 are held by the electric wire holding rod 20.

  In the second system configuration group 4, the sub-harness 2 shown in FIG. 7 is partially produced from the rear identification electric wires 9 with terminals (rear identification electric wire group 10) held in the electric wire holding rod 20. In the second system configuration group 4, the terminal fitting 27 is automatically inserted (automatically accommodated) into the cavity of the housing 28.

  In the third system configuration group 5, the sub harness 2 is produced so as to be completed as shown in FIG. In the third system configuration group 5, a process that is difficult to be automated is performed. Specifically, a step of manually inserting the terminal fitting 27 (for example, when inserted in the opposite direction to the other) that could not be automatically inserted in the second system configuration group 4 is performed. Moreover, the process of twisting the identification electric wire 9 with a terminal, the process of jointing electric wires, etc. are performed. In addition, a process of manually assembling exterior parts such as grommets that should be pre-assembled is also performed.

  The post-identification electric wire group 10 obtained by the first system configuration group 3 is stocked in the first stock unit 6. Further, the sub harness 2 obtained by the second system configuration group 4 is stocked in the second stock unit 7. Further, the sub harness 2 obtained by the third system configuration group 5 is stocked in the third stock unit 8. Although not shown, the sub-harness 2 after being stocked in the third stock portion 8 is set on a wiring board and assembled as a wire harness.

  In the above system configuration, even when a plurality of types of electric wires 23 are required to be produced with one sub-harness 2, the colored portion 11 can be formed as a post-identification portion with one colored unit 12. The wire harness production system 1 can cope with even one coloring unit 12. Therefore, as compared with the conventional case, it is possible to make the equipment used for production more compact and reduce the cost.

  The coloring unit 12 may be read as “coloring unit and / or marking unit”. The marking unit is a unit for marking with a coloring material.

  Further, regarding the sub-harness 2, the “sub-harness” refers to a state in which all the terminal fittings 27 (crimp terminals, etc.) are inserted into the connector housing or in a jointed state. In other words, the terminal fitting 27 is not exposed.

  Further, regarding the coloring portion 11, the coloring state may be linear (strip-shaped) in the circumferential direction as shown, or may be dots (••), marks (◯ Δ) (AB), or the like.

  Note that the third system configuration group 5 may not be provided, and all the terminal fittings 27 may be automatically inserted. Conversely, the second system configuration group 4 may not be provided, and all the terminal fittings 27 may be manually inserted. Further, the arrangement order of the second system configuration group 4 and the third system configuration group 5 may be reversed. Alternatively, either one or both of the second system configuration group 4 and the third system configuration group 5 may be arranged in parallel.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 9 is a block diagram showing a wire harness production system. FIG. 10 is a perspective view showing the appearance of the wire harness, and FIG. 11 is a view showing the wire terminal and the colored portion.

  In FIG. 9, reference numeral 31 indicates a wire harness production system. The wire harness production system 31 includes a sub-harness production line 32 and a wire harness assembly line 33. The sub-harness production line 32 may be referred to as a pre-process line 34, and the wire harness assembly line 33 may be referred to as a post-process line 35.

  The sub-harness production line 32 includes two lines in the present embodiment. The sub-harness production line 32 includes a first system configuration group 36, a second system configuration group 37, a first stock section 38 (38a, 38b), and a second stock section 39 (39a, 39b). It consists of a line that can be handled by a machine, and a manually corresponding line that includes the third system configuration group 41 and the third stock portion 42 (42a, 42b) (a line that is assembled by a worker). In the first system configuration group 36, a coloring unit 40 is provided.

  The sub-harness production line 32 is two lines in the present embodiment, but the number of lines is not particularly limited, and may be one line, for example.

  It is assumed that the first system configuration group 36 and the second system configuration group 37 that are lines capable of handling the automatic machine are controlled by a computer (not shown). Further, it is assumed that it is operated by a control mechanism (not shown). The computer control unit is configured to be able to control every system configuration, or to be able to control the entire system collectively. The control unit includes a CPU, a RAM, a ROM, and the like. The programming according to the type of the sub-harness makes it possible to change the production procedure, the production speed, etc., for example, even if there are a large number of supply parts, it is possible to make a reliable selection. In addition, it is possible to determine whether or not the product is in the middle of production by the control of the control unit.

  The wire harness assembly line 33 is a dedicated assembly line installed on the downstream side of the sub-harness production line 32. In this line, one or more of the sub-harnesses 2 shown in FIG. 8 are assembled on a wiring board, and at this time, a wire harness 43 as shown in FIG. . The configuration and appearance shape of the wire harness 43 in FIG. 10 are examples. Here, illustration of exterior parts such as a protector and a grommet is omitted.

  In FIG. 10, a wire harness 43 is a bundle of electric wires 44, and is arranged at a predetermined position of an automobile (moving body) to transmit electric power and signals. The number of electric wires required for an automobile, including so-called popular cars and high-end cars, may be from several hundred to over 1,000 in some cases. Since such a wire harness 43 is produced by processing each electric wire, it can be understood that a large number of processes are required and a great deal of labor and time are required. Therefore, it is important to automate production.

  The wire harness 43 is produced according to the arrangement of equipment (vehicle electrical components) mounted on the automobile. Examples of the wire harness 43 include, from the front side, an engine room wire harness, a cowl side wire harness, an instrument panel wire harness, a door wire harness, and a rear side wire harness.

  The wire harness 43 is a bundle of electric wires 44 as described above, and includes a main line 45 and a plurality of branch lines 46 branched from a predetermined position of the main line 45 as a configuration of the bundle part. Various types of connectors 47 are provided at the terminals of the main line 45 and the plurality of branch lines 46. The connector 47 includes a terminal fitting attached to the end of the electric wire 44 and a connector housing that accommodates the terminal fitting.

  In the wire harness 43, in order to ensure electrical connection, the terminal fitting of the terminal of the electric wire 44 needs to be inserted into a predetermined position of the connector housing. In the present invention, a design portion for identification as shown in FIG. 11, that is, a colored portion 49 is formed at the terminal 48 of the electric wire 44. In addition, regarding the said terminal, although it is set as the referential mark 48 by description here, after measuring and cutting | disconnecting the electric wire 44, it shall show with the referential marks 66 and 67 mentioned later.

  In FIG. 11A, first, the configuration of the electric wire 44 will be described. The electric wire 44 includes an electric wire conductor portion 50 (conductor) and an electric wire covering portion 51 (insulator). The electric wire conductor part 50 has electroconductivity. The electric wire covering part 51 has insulating properties. The wire covering portion 51 is formed by extruding an uncolored molten resin material on the outer surface of the wire conductor portion 50. The wire covering portion 51 becomes white by mixing a white colorant into the resin material. Or it becomes a natural color without mixing the coloring agent in the resin material. In this embodiment, white is generally used, but natural or other colors may be used.

  Next, the colored portion 49 will be described. The colored portion 49 is formed on the outer surface of the wire covering portion 51 that becomes white. The colored portion 49 is formed in a predetermined area on the outer surface and over the entire circumference. The coloring portion 49 is formed by coloring the outer surface of the wire covering portion 51 with a coloring material.

  11B and 11C, the first area is between the quotation marks ar1 and ar2, the second area is between the quotation marks ar2 and ar3, and the third area is between the quotation marks ar3 and ar4. Assuming that the fourth area is between the quotation marks ar5 and ar6, the fifth area is between the quotation marks ar6 and ar7, and the sixth area is between the quotation marks ar7 and ar8, the colored portion 49 in FIG. Is formed across the third area and half of the second area, and across the sixth area and half of the fifth area. On the other hand, in the case of the colored portion 49 of FIG. 11C, it is formed in the first area and the third area, respectively, and in the fourth area and the sixth area. It is assumed that the description is not limited here. If identification is possible, the number, width, etc. may be changed as appropriate. Further, it may be a dot or a mark instead of a linear shape (band shape) in the circumferential direction.

  As colors of the colored portion 49, W / B (white / black), B (black), R (red), L (blue), Lg (light green), G (green), Y (yellow), V ( Violet), P (pink), Sb (sky blue), Br (brown) and the like. Regarding the color of the colored portion 49, it is not particularly problematic if it can be identified with respect to the white wire covering portion 51 and if it can be distinguished from other colors.

  As shown in FIG. 9, the coloring unit 49 is formed in the first system configuration group 36 because the coloring unit 40 is provided in the first system configuration group 36. First, the first system configuration group 36 will be described. FIG. 12 is a block diagram showing the first system configuration group 36 of FIG. 9 in more detail.

  In FIG. 12, the first system configuration group 36 includes an automatic subset cutting machine 52, a first automatic subset crimping line 53, and a second automatic subset crimping line 54. The automatic subset cutting machine 52, the first automatic subset crimping line 53, and the second automatic subset crimping line 54 are arranged so as to be continuous from the left to the right of FIG. The difference between the first automatic subset crimping line 53 and the second automatic subset crimping line 54 is mainly the presence or absence of the coloring unit 40, and the coloring unit 40 is incorporated in the first automatic subset crimping line 53.

  FIG. 13 is an enlarged configuration diagram showing the automatic subset cutting machine 52. The automatic subset cutting machine 52 has a plurality of types of wire reels 56 (56a, 56b, 56c...) On the back side 55 of the apparatus. In other words, a plurality of wire reels 56 having different wire types are provided. “Different types of electric wires” means that, for example, electric wires 44 having different thicknesses are wound around the electric wire reels 56. The number of wire reels 56 (five shown in this embodiment) in the drawing is an example. Assume that there are at least as many wire types as necessary for sub-harness production.

  Reference numeral 57 indicates a wire terminal assembly. The electric wire terminal assembly 57 is provided as a part for collecting the electric wire terminals 48 (48a, 48b, 48c...) Of the electric wires 44 (44a, 44b, 44c...) Drawn from the electric wire reels 56. Moreover, the electric wire terminal aggregate | assembly part 57 is provided also as a part for hold | maintaining each electric wire terminal 48, respectively. The wire terminal assembly portion 57 has a holding force that allows the wire 44 to be pulled out. Alternatively, it has a mechanism that releases the holding when the electric wire 44 needs to be pulled out. Each electric wire terminal 48 shall be held by electric wire terminal gathering part 57 in the state where this position was arranged.

  The automatic subset cutting machine 52 has, as this system configuration, a selected electric wire drawing portion 58, a measuring portion 59, an electric wire cutting portion 60, an electric wire U-shaped set portion 61, an electric wire holding rod 62, and an electric wire holding rod movement. Part 63. In the selected electric wire lead-out portion 58, the electric wire 44 is selected based on the type of electric wire constituting one sub-harness, and the selected electric wire 44 is automatically drawn out from the electric wire terminal assembly portion 57 as the selected electric wire 64. The selected electric wire drawing portion 58 automatically draws the electric wire 44 (the selected electric wire 64) in a direction (see an arrow Q) orthogonal to the moving direction of the electric wire holding rod 62 (see the arrow P. The same as the method of progress of the production process). It has a mechanism that can.

  The lead length of the electric wire 44 (selected electric wire 64) drawn out by the selected electric wire drawing portion 58 is automatically measured by the measuring portion 59. The drawer length is based on a numerical value programmed in advance according to the contents of the sub-harness. In other words, since the length necessary for the wiring must be secured, the cable may be drawn out longer or may be drawn out shorter. The drawn electric wire 44 (selected electric wire 64) is cut to a desired length based on the measurement of the measurement unit 59. This cutting is performed by the electric wire cutting unit 60, and the cut and cut electric wire 65 is obtained by cutting.

  The electric wire U-shaped set part 61 shall operate | move with drawing of the electric wire 44 (selected electric wire 64) by the selection electric wire extraction part 58. FIG. By the operation of the electric wire U-shaped setting portion 61, both ends 66 and 67 of the scale cut electric wire 65 are set at desired positions of the electric wire holding rod 62. Further, the entire cut-cut electric wire 65 is set in a substantially U shape with respect to the electric wire holding rod 62.

  Here, the electric wire U-shaped set portion 61 will be described in more detail. The electric wire U-shaped set portion 61 has a mechanism that can make the selected electric wire 64 drawn out in the arrow Q direction into a substantially U shape. . Although not specifically shown, specifically, a first mechanism that first reverses the orientation of the terminal 66 by 180 degrees while holding the terminal 66 (terminal on the leading end side of the drawer) of the selected electric wire 64 in accordance with the timing of drawing, To the second mechanism for holding the terminal 67 (terminal on the rear end side of the lead) of the scale-cutting electric wire 65 drawn in the direction of the arrow Q and cut by the electric wire cutting part 60, and the terminal 66 whose direction is reversed as described above. And a fourth mechanism for carrying and setting the terminal 67 to a desired position of the electric wire holding rod 62.

  The first mechanism in the electric wire U-shaped set portion 61 is first arranged in accordance with the position of the terminal 66 of the selected electric wire 64, and while holding the terminal 66, at the same time the direction is reversed by 180 degrees (in the direction of arrow P). Behave in a way that deviates. When the direction of the first mechanism is reversed by 180 degrees, the direction of the terminal 66 is also reversed by 180 degrees, that is, the direction opposite to the arrow Q, so that the selected electric wire 64 is substantially U-shaped near the terminal 66. It has an inversion part. The reverse portion moves in the direction of arrow Q as the selected electric wire 64 is pulled out (the reverse portion of the selected electric wire 64 comes away from the first mechanism).

  The second mechanism operates to move to the position of the selected electric wire 64 in the pulled-out state along with the movement of the first mechanism (shift to the adjacent side), and is cut by the electric wire cutting unit 60. The operation | movement which hold | maintains the terminal 67 of the measured cutting wire 65 obtained in this way is performed.

  In addition, it is preferable that the set positions of the terminals 66 and 67 with respect to the electric wire holding rod 62 take into account, for example, prevention of entanglement of the electric wires when assembling the wire harness, or consider the order of terminal fitting insertion during the production of the sub harness. (As schematically shown in FIG. 12, it is preferable not to set them one after the other, but to set them at the positions shown in FIG. 3. For example, to prevent entanglement between wires. If this is taken into consideration, it will naturally contribute to the improvement of productivity, and if consideration is given to the order in which the terminal fittings are inserted, it is possible to handle either automatic insertion of terminal fittings into the housing or manual insertion. In this case, it is preferable because it contributes to the improvement of productivity).

  In this embodiment, the terminals 66 and 67 are set at a desired position of the wire holding rod 62 with the above consideration. Thereby, as will be understood from the following description, it is not necessary to rearrange the scale cut electric wires 65 (the rear identification electric wires 9 with terminals) in the subsequent process.

  The scale-cut electric wire 65, which is generally set in a U-shape with respect to the electric wire holding rod 62, is held such that both ends 66 and 67 protrude from the electric wire holding rod 62 with a predetermined length. The scale cutting electric wire 65 has both ends 66 and 67 orthogonal to the moving direction of the electric wire holding rod 62 (see arrow P) and opposite to the drawing direction of the arrow Q (described later). (Same as Q 'direction). Further, the measuring wire 65 is held so that both terminals 66 and 67 protrude to the arrangement side of the coloring unit 40 and to the arrangement side of the terminal peeling portion 68 and the terminal attachment portion 69 (see FIG. 12) described later. (In other words, the terminals 66 and 67 are held at positions passing through the coloring unit 40 and the terminal peeling portion 68).

  The wire holding rod 62 is a bowl-shaped member that is long in the direction of the arrow P, and has a plurality of slits in the direction orthogonal to the arrow P. The plurality of slits are formed as electric wire holding portions. Although not particularly shown, the wire holding rod 62 is stocked in the vicinity of the automatic subset cutting machine 52, and is supplied to the wire holding rod moving unit 63 in accordance with sub-harness production.

  The structure of the electric wire holding rod 62 will be described in more detail. The electric wire holding rod 62 includes a large number of electric wire clips arranged in the direction of the arrow P and a clip base that keeps the electric wire clips in a long hook shape. An electric wire clip is comprised from a pair of clamping element, and between this pair of clamping elements is formed as the said electric wire holding part. A taper is formed at the tip portion of the pair of sandwiching elements for guiding the electric wire. The taper is formed so as to incline toward the electric wire holding part. The electric wire clips are all formed in the same size and shape. The electric wire clip is provided so that several tens of electric wire clips exist in one electric wire holding rod 62.

  In the case of the present embodiment, for example, what number of electric wire clips from the one end of the electric wire holding rod 62 is held in advance according to the contents of the sub-harness. Shall be.

  The electric wire holding rod moving part 63 directs the electric wire holding rod 62 in a state in which the plurality of scale-cutting electric wires 65 are held to the coloring unit 40, a terminal peeling portion 68 and a terminal mounting portion 69 (see FIG. 12) described later. It has a mechanism that can be conveyed. Specifically, it has a rail-shaped portion for guiding the wire holding rod 62 in the direction of arrow P, and a mechanism for moving the wire holding rod 62 in the direction of arrow P at a predetermined speed. In this embodiment, the wire holding rod moving part 63 is controlled so that the movement of the wire holding rod 62 does not occur during the setting of the scale cut electric wire 65.

  The rail-shaped portion is disposed not only to the automatic subset cutting machine 52 but also to the first automatic subset crimping line 53 and the second automatic subset crimping line 54.

  With the automatic subset cutting machine 52 having the system configuration as described above, the scale cut electric wires 65 can be made to flow to the first automatic subset crimping line 53 for the number and types of electric wires necessary for sub-harness production. It can be seen (see also FIG. 3 for a state in which a plurality of measuring and cutting electric wires 65 are combined).

  In FIG. 12, the first automatic subset crimping line 53 includes a coloring unit 40, a terminal peeling portion 68, and a terminal attachment portion 69. The first automatic subset crimping line 53 is a line in which the coloring unit 40 is incorporated.

  First, the coloring unit 40 will be described with reference to FIGS. 14 to 19 in order. FIG. 14 is a block diagram showing the coloring unit, FIG. 15 is a block diagram showing the terminal wiping portion, FIG. 16 is a block diagram showing the coloring unit main body, FIG. FIG. 19 is a block diagram showing a design confirmation unit and a confirmation method.

  In FIG. 14, the coloring unit 40 is arranged on the side from which both ends 66 and 67 of the scale cutting electric wire 65 set in a substantially U shape with respect to the electric wire holding rod 62 protrude. That is, the coloring unit 40 is arranged and configured so that the desired position (desired area) of both terminals 66 and 67 can be colored with the coloring material.

  Here, the “coloring” described above will be described. This coloring means that the outer surfaces of the terminals 66 and 67 (see the wire covering portion 51 in FIG. 11; the same applies hereinafter) are colored with a coloring material. The coloring material is a liquid material in which a coloring material (industrial organic material) is dissolved and dispersed in water or other solvent. Examples of organic substances include dyes and pigments (mostly organic substances and synthetic products), and sometimes dyes are used as pigments and pigments are used as dyes. As a more specific example, the coloring material is a coloring liquid or a paint.

  The colored liquid refers to a solution in which a dye is dissolved or dispersed in a solvent. Moreover, the said coating material shows what the pigment has disperse | distributed in the dispersion liquid. Therefore, when the outer surfaces of the terminals 66 and 67 (the electric wire covering part 51) are colored with the coloring liquid, the dye soaks into the terminals 66 and 67 (the electric wire covering part 51), and the terminals 66 and 67 (the electric wire covering part 51) with the paint. When the outer surface is colored, the pigment adheres to the outer surface without penetrating into the terminals 66 and 67 (the wire covering portion 51). That is, “coloring” as used herein means dyeing the outer surfaces of the terminals 66 and 67 (the electric wire covering portion 51) with a dye and applying a pigment to the outer surfaces of the terminals 66 and 67 (the electric wire covering portion 51). It shows that.

  Regarding the solvent and the dispersion liquid, those having an affinity for the synthetic resin material forming the terminals 66 and 67 (the electric wire covering portion 51) are desirable. In this case, the dye surely soaks into the terminals 66 and 67 (the electric wire covering part 51), and the pigment adheres securely to the outer surface of the terminals 66 and 67 (the electric wire covering part 51).

  The coloring unit 40 includes a terminal wiping unit 70, a coloring unit main body 71, a drying unit 72, and a design confirmation unit 73. In the present embodiment, the coloring unit 40 is a device in which the above-described configuration is integrated (assumed as an example. The above-described configuration may be arranged as an individual device at appropriate intervals to form the coloring unit 40. ). The coloring unit 40 is controlled by a control unit (not shown). It is assumed that information necessary for the operation of the coloring unit 40, such as the wire type of the measuring wire 65 and the arrangement of the terminal 66 (67) in the wire holding rod 62, is programmed in the control unit in advance.

  In FIG. 15, the terminal wiping portion 70 is provided for automatically wiping off the dirt on the terminal 66 (67) of the scale-cutting electric wire 65 that is generally set in a U shape with respect to the electric wire holding rod 62. In the present embodiment, the terminal wiping unit 70 is provided to improve the coloring state of the terminal 66 (67).

  Note that an arrow P in FIG. 15 indicates the moving direction of the electric wire holding rod 62. An arrow Q indicates the direction in which the selected electric wire 64 is pulled out by the automatic subset cutting machine 52 (see FIG. 13). An arrow Q ′ indicates the protruding direction (the extending direction) of the terminal 66 (67) of the measuring wire 65. Furthermore, arrows R and R ′ indicate the up and down directions.

  The terminal wiping unit 70 includes a pair of wiping units 74, a first moving mechanism 75 and a second moving mechanism 76 that move the pair of wiping units 74, and an electric wire chuck unit (not shown). The pair of wiping portions 74 are formed as portions that can move so as to rub the entire outer surface after the terminal 66 (67) is sandwiched and contacted from above and below. As for a pair of wiping off part 74, this outer peripheral surface is used for wiping off. In this embodiment, the core material is formed as a portion covered with a cloth. The core material is appropriately selected from a cylindrical shape, a prismatic shape, and the like.

  In addition, it is preferable that the pair of wiping portions 74 have a configuration in which the wiping location can be changed at an appropriate timing, instead of always wiping the entire outer surface of the terminal 66 (67) at the same location and wiping the dirt. (For example, changing the wiping location by moving the outer peripheral surface of the wiping portion in the rotation direction).

  The first moving mechanism 75 and the second moving mechanism 76 can move the pair of wiping portions 74 in the directions of arrows R and R ′ and move in the directions of arrows Q and Q ′ as operations necessary for wiping. Configured to be able to.

  During wiping by the pair of wiping portions 74, an unillustrated electric wire chuck portion holds the measuring cut electric wire 65 to prevent terminal position deviation.

  Since the terminal wiping unit 70 of the present embodiment operates as described above, it has not only a function of wiping off the dirt of the terminal 66 (67) but also a function of straightening the terminal 66 (67). Of course, it is possible to contribute to the stabilization of the coloring position by extending the terminal 66 (67) straight. Further, a terminal fitting 89 to be described later can be attached at an accurate position.

  As can be seen from the above description, the terminal wiping unit 70 does not wipe the entire scale-cutting electric wire 65. In other words, the terminal wiping unit 70 wipes only the portion necessary for coloring, so the time required for wiping is short. In addition, there is an advantage that the durability of the apparatus (the durability of the wiping portion 74) is also good. In addition, the terminal wiping portion 70 has an advantage that it can prevent bleeding during coloring.

  The reason for wiping only the portion necessary for coloring is that the terminal 66 (67) protrudes in the direction of the arrow Q 'with respect to the measuring wire 65 that moves in the direction of the arrow P.

  In FIG. 16, the coloring unit main body 71 has a coloring portion 49 as a design part for identification on a terminal 66 (67) of the scale-cutting electric wire 65 that is generally set in a U shape with respect to the electric wire holding rod 62. Provided for automatic forming. In this embodiment, the coloring unit main body 71 is configured such that the coloring portion 49 can be formed by spraying the coloring material 77 on a predetermined area on the outer surface of the terminal 66 (67).

  The coloring unit main body 71 includes a coloring head 78, a first moving mechanism 79 and a second moving mechanism 80 for moving the coloring head 78, an electric wire chuck portion (not shown), and a nozzle cleaning portion (not shown). A coloring material supply unit (not shown) is provided. The coloring head 78 includes a coloring head main body 81 and a plurality of coloring nozzles 82 for spraying the coloring material 77 from the coloring head main body 81 to a predetermined area on the outer surface of the terminal 66 (67).

  In the present embodiment, the number of the coloring nozzles 82 is as many as possible for discharging 12 colors. Such a plurality of coloring nozzles 82 are arranged in a line in the directions of the arrows Q and Q ′. The plurality of coloring nozzles 82 are selectively used according to the color of the coloring portion 49. The proper use is performed by moving the coloring head 78 in the directions of arrows Q and Q ′ by the first moving mechanism 79.

  The coloring head 78 is assumed to move in the directions of arrows Q and Q ′ with respect to the terminal 66 (67) of the measuring wire 65. Further, in order to form the colored portion 49 over the entire outer surface of the terminal 66 (67), the colored portion 49 is also moved in the directions of arrows S and S ′ that swing (swing or swing).

  The coloring head 78 is configured to move to the scale cutting electric wire 65 moving in the arrow P direction and to the terminal 66 (67) protruding in the arrow Q ′ direction to form the coloring portion 49. Is done.

  The adhesion state of the coloring material 77 will be described with reference to FIG. 17. First, it is assumed that the coloring material 77 is not jetted at a position where the coloring material 77 does not adhere to the outer surface of the terminal 66 (67). Next, as shown in FIG. 17A, when the coloring head 78 is moved in the direction of arrow S to reach a position where the coloring material 77 adheres to the outer surface, the coloring material 77 is jetted. In addition, the coloring material 77 shall be injected by pressurization (it shall be an example). When the coloring material 77 starts to adhere to the outer surface, the coloring material 77 turns around to the side away from the coloring head 78 and enters a state as shown in FIG.

  After the coloring material 77 has crossed the terminal 66 (67), if the coloring head 78 is moved in the direction of the arrow S 'as shown in FIG. 17C, the coloring material 77 wraps around from the opposite side. Thus, the adhesion of the coloring material 77 is completed over the entire circumference.

  If the coloring material 77 is to be attached to the entire circumference more reliably, for example, as shown by the phantom line in FIG. 16, the coloring unit main body 71 ′ is additionally arranged on the opposite side of the coloring unit main body 71. An example shall be given. It will not be specifically limited if it is the arrangement | positioning which does not become the hindrance of the scale cutting electric wire 65 which moves to the arrow P direction.

  In addition, a mask member may be interposed between the terminal 66 (67) and the coloring head 78 so that dots or marks (marking) can be applied.

  Further, when the coloring portion 49 is formed wide or the entire terminal 66 (67) is colored, the coloring head 78 is moved in the direction of the arrow Q 'while moving in the directions of the arrows S and S'. The colorant 77 may be sprayed continuously.

  In FIG. 18, the drying unit 72 is provided to dry and fix the coloring unit 49 formed by spraying the coloring material 77 (see FIG. 16). The drying unit 72 includes a heater drying unit 83 and a hot air drying unit 84. The heater drying unit 83 is configured so that the coloring unit 49 can be dried by a near infrared heater. Moreover, the warm air drying part 84 is comprised so that the coloring part 49 can be dried with warm air.

  The heater drying unit 83 and the hot air drying unit 84 are configured so that the terminal 66 (67) of the scale cutting electric wire 65 moving in the arrow P direction first passes through the heater drying unit 83 and then passes through the hot air drying unit 84. (The reverse is also possible. The vertical arrangement as shown in FIG. 18 is an example. For example, the heater drying unit 83 and the hot air drying unit 84 are arranged on the upper side, respectively. And a reflector may be provided on the lower side).

  The heater drying unit 83 and the hot air drying unit 84 operate in accordance with the speed of the scale cutting electric wire 65 moving in the direction of the arrow P, and actually the drying of the coloring unit 49 is completed in an instant.

  In FIG. 19, the design confirmation part 73 is provided for inspecting the formation state and the formation position of the colored part 49. The design confirmation unit 73 includes a terminal photographing unit 85 and an image display unit 86. The terminal photographing unit 85 includes a CCD camera or the like. Image data obtained by photographing by the terminal photographing unit 85 is sent to a control unit (not shown). The control unit performs image processing necessary for inspection. The image data processed by the control unit is displayed on the image display unit 86.

  The formation state and the formation position of the coloring part 49 are displayed on the image display part 86, but the pass / fail judgment is performed by a control part (not shown). Therefore, it is not necessary to always place an inspector in front of the image display unit 86.

  FIG. 19B shows the display on the image display unit 86. The colored portion 49 is formed across the third area and half of the second area, and across the sixth area and half of the fifth area. As an example, reference numeral 87 in the figure indicates a protruding inspection portion. The protrusion inspection portion 87 is used for determining whether or not the end portion of the coloring portion 49 is contained in the control portion (not shown).

  If the formation state or formation position of the colored portion 49 is bad, an alarm or the like may be alerted to the worker or the like. In a control unit (not shown), it is possible to memorize what number the colored portion 49 of the scale-cutting electric wire 65 held in the electric wire holding rod 62 is bad, and the first system configuration group based on this stored information What is necessary is just to correct at the end of 36.

  If the design confirmation part 73 is passed, the rear identification electric wire 88 (scale cut electric wire 65) which has the coloring part 49 will be obtained. The rear identification electric wire 88 obtained by passing through the coloring unit 40 subsequently passes through the terminal peeling portion 68 and the terminal attachment portion 69 in order as shown in FIG. Incidentally, the coloring unit 40 also brings the state as shown in FIG.

  Next, the terminal peeling portion 68 will be described with reference to FIG. Further, the terminal mounting portion 69 will be described with reference to FIG.

  In FIG. 20, the terminal peeling part 68 is provided in order to remove the electric wire coating | coated part 51 (insulator) automatically by predetermined length. In the terminal 66 (67) of the rear identification electric wire 88 (scale cut electric wire 65) having the coloring portion 49, the electric wire covering portion 51 is removed by a predetermined length by the terminal peeling portion 68. When the wire covering portion 51 is removed, the wire conductor portion 50 is exposed from the terminal 66 (67). Note that the terminal peeling portion 68 results in a state as shown in FIG.

  In FIG. 21, a terminal attachment portion 69 is provided for automatically attaching a terminal fitting 89 to a terminal 66 (67) where the electric wire conductor portion 50 is exposed. In this embodiment, the terminal attachment portion 69 is configured so that the terminal fitting 89 can be attached by pressure bonding. Moreover, the terminal attachment part 69 is comprised so that multiple types of terminal metal fittings 89 can be attached so that it may respond | correspond to electric wire classification. In the first automatic subset crimping line 53 of this embodiment (see FIG. 12), six kinds of terminal fittings 89 can be attached (if more kinds of terminal fittings 89 need to be attached, this embodiment is implemented. A second automatic subset crimp line 54 is required as in the example). A plurality of types of terminal fittings 89 are supplied to the terminal mounting portion 69.

  In addition, regarding the attachment of a plurality of types of terminal fittings 89, a step of attaching various terminal fittings 89 in the order in which the terminal 66 (67) flows, or a step of moving the terminal attachment portion 69 to attach each terminal fitting 89 of the same type. Any of these may be adopted. In the present embodiment, it is assumed that the terminal fitting 89 is provided only for the terminal 66 (67) that needs to be attached (in this case, the state is as shown in FIG. 6).

  Returning to FIG. 12, the second automatic subset crimping line 54 includes a terminal peeling portion 68 and a terminal attachment portion 69 similar to the first automatic subset crimping line 53 described above. Since the terminal peeling part 68 and the terminal attachment part 69 are the same as the 1st automatic subset crimping line 53, description here shall be abbreviate | omitted.

  As described above with reference to FIGS. 9 to 21, the system configuration of the first system configuration group 36 allows the rear identification wires 9 with a plurality of terminals (rear identification wire group 10) as shown in FIG. Is obtained.

  The first system configuration group 36 includes a coloring unit 40 for coloring the electric wire covering portion 51 with a coloring material 77 to form a coloring portion 49, and an electric wire terminal as a system configuration on the front side of the coloring unit 40. A collecting portion 57, a selected wire drawing portion 58, and the like are included. In such a system configuration, the electric wire terminal assembly portion 57 has a function of collecting and holding the electric wire terminals 48 of the plurality of types of electric wires 44, and the selected electric wire drawing portion 58 is selected from the electric wire terminals 48. Since it has a function of selecting the type of electric wire and a function of automatically pulling out the electric wire 44 of the selected type from the electric wire terminal assembly portion 57 as the selected electric wire 64, it is necessary to produce a plurality of types of electric wires 44 with one sub harness 2. Even if it does, there exists an effect that it colors with the one coloring unit 40, and the subharness 2 can be produced.

  If it can color with one coloring unit 40, an installation space can be made small and a cost rise can be suppressed. Therefore, there is an effect that the equipment used for production can be made compact and its cost can be reduced.

  Moreover, since the coloring for identifying the electric wire 44 is performed in the middle of the wire harness production system 31, the number of electric wire reels set in the upstream portion of the system can be reduced as compared with the conventional case. For example, if there are five colors for identification with the same line type, the conventional (system for producing a wire harness with pre-colored electric wires) had to set five electric wire reels. The electric wire reel 56 is sufficient. Therefore, there is an effect that the installation space of the production system can be reduced.

  In the above description, the coloring unit 40 is arranged between the electric wire cutting part 60 and the terminal peeling part 68. However, the arrangement is not limited to this, and the arrangement shown in FIGS. It may be. 22 and 23 are configuration diagrams showing a first system configuration group 36 in which the arrangement of the coloring units 40 is changed.

  In FIG. 22, the coloring unit 40 is arranged after the terminal mounting portion 69 of the second automatic subset crimping line 54 (the coloring unit 40 is arranged so that it can be colored with respect to the unillustrated measuring wire with terminals). ) Moreover, in FIG. 23, the coloring unit 40 is arrange | positioned in the vicinity of the selection electric wire extraction part 58 so that it can color in the middle of a measuring scale. In any case, there is an effect that the equipment used for production can be made compact and its cost can be reduced.

  Returning to FIG. 9, the first stock portion 38 (stock portion) is a stock portion arranged between the first system configuration group 36 and the second system configuration group 37. A front first stock portion 38a associated with the system configuration group 36 and a rear first stock portion 38b associated with the second system configuration group 37 are provided.

  The rear identification electric wire group 10 (see FIG. 6) obtained by the first system configuration group 36 is once stocked in the front first stock portion 38a. And it is carried to the rear side 1st stock part 38b according to the production speed of the 2nd system composition group 37, and is stocked.

  The first stock section 38 is effective for adjusting the production speed between the first system configuration group 36 and the second system configuration group 37.

  In the second system configuration group 37, the sub-harness 2 (see FIG. 7) is partially produced. Reference numeral 90 in the second system configuration group 37 indicates an automatic terminal insertion machine (terminal insertion unit). The subharness 2 obtained by the automatic terminal insertion machine 90 is stocked in the second stock part 39.

  The second stock portion 39 is a sub-harness stock portion disposed between the second system configuration group 37 and the third system configuration group 41, and in the present embodiment, after the second system configuration group 37, The front side second stock part 39a and the rear side second stock part 39b attached in front of the third system configuration group 41 are configured.

  The subharness 2 (see FIG. 7) obtained by the second system configuration group 37 is once stocked in the front second stock portion 39a. And it is carried to the rear side 2nd stock part 39b according to the production speed of the 3rd system composition group 41, and is stocked.

  The second stock section 39 is effective for adjusting the production speed between the second system configuration group 37 and the third system configuration group 41.

  In the third system configuration group 41, the production is performed so that the sub-harness 2 (see FIG. 8) is completed. Reference numeral 91 in the third system configuration group 41 indicates a wire twist portion. Reference numeral 92 indicates a manual terminal insertion portion (terminal insertion portion). Reference numeral 93 indicates a joint portion between wires. Reference numeral 94 indicates a sub-harness continuity inspection unit.

  In the third system configuration group 41, a process that is difficult to be automated is performed. Specifically, as shown in FIG. 8, a step of twisting the rear identification wire 9 with a terminal is performed. Further, a step of manually inserting a terminal metal fitting that could not be automatically inserted in the second system configuration group 37 (for example, when inserting in the opposite direction to the other) is performed. Moreover, the process of jointing electric wires is performed. In addition, a process of manually assembling exterior parts such as grommets that should be assembled in advance is performed. Finally, a step of inspecting whether or not the circuit of the sub-harness 2 (see FIG. 8) is definitely made is performed.

  The third stock portion 42 is a sub-harness stock portion disposed between the third system configuration group 41 and the wire harness assembly line 33, and is attached after the third system configuration group 41 in this embodiment. The front third stock portion 42a and the rear third stock portion 42b attached in front of the wire harness assembly line 33 are configured.

  The sub-harness 2 (see FIG. 8) obtained by the third system configuration group 41 is once stocked in the front side third stock portion 42a. And it is carried to the rear side 3rd stock part 42b according to the production speed of the wire harness assembly line 33, and is stocked.

  The third stock section 42 is effective for adjusting the production speed between the third system configuration group 41 and the wire harness assembly line 33.

  The third system configuration group 41 consists of processes that are difficult to be automated and must be performed by an operator. When the first system configuration group 36 and the second system configuration group 37 are automated as in this embodiment, a difference in production speed appears. Therefore, the second stock section 39 is provided, and thereby the production speed can be adjusted.

  The wire harness assembly line 33 is configured so that the wire harness 43 (see FIG. 10) can be assembled from the sub harness 2 (see FIG. 8). Reference numeral 95 indicates a wiring board. A plurality of wiring boards 95 are provided, and are attached to a conveyor and flow so as to rotate in an annular shape. After tape winding and exterior parts are attached to the sub-harness 2 (see FIG. 8) set on the wiring board 95, the wire harness 43 (FIG. 10) is passed through the harness continuity inspection unit 96 and the appearance inspection unit 97 in order. A series of production and assembly up to reference) is completed.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Wire harness production system, 2 ... Sub harness, 3 ... 1st system configuration group, 4 ... 2nd system configuration group, 5 ... 3rd system configuration group, 6 ... 1st stock part, 7 ... 2nd stock part, 8 ... 3rd stock part, 9 ... Rear identification electric wire with terminal, 10 ... Rear identification electric wire group, 11 ... Coloring part, 12 ... Coloring unit, 13 ... Electric wire covering part, 14 ... Electric wire terminal assembly part, 15 ... Selected electric wire drawing , 16 ... Measuring section, 17 ... Electric wire cutting part, 18 ... Terminal peeling part, 19 ... Terminal mounting part, 20 ... Electric wire holding rod, 21 ... Electric wire U-shaped set part, 22 ... Electric wire holding rod moving part, 23 ... Electric wire, 24 ... Electric wire terminal, 25 ... Selection electric wire, 26 ... Measuring wire, 27 ... Terminal fitting, 28 ... Housing (connector housing)

  DESCRIPTION OF SYMBOLS 31 ... Wire harness production system, 32 ... Sub harness production line, 33 ... Wire harness assembly line, 34 ... Pre-process line, 35 ... Post process line, 36 ... First system component group, 37 ... Second system component group, 38 ... 1st stock part (stock part), 39 ... 2nd stock part, 40 ... coloring unit, 41 ... 3rd system configuration group, 42 ... 3rd stock part, 43 ... wire harness, 44 ... electric wire, 45 ... trunk line, 46 ... Branch wire, 47 ... Connector, 48 ... Terminal, 49 ... Colored part, 50 ... Electric wire conductor part, 51 ... Electric wire covering part, 52 ... Automatic subset cutting machine, 53 ... First automatic subset crimping line, 54 ... Second Automatic subset crimping line, 55 ... back side of device, 56 ... electric wire reel, 57 ... electric wire terminal assembly, 58 ... selected electric wire drawing part 59 ... Measuring section, 60 ... Electric wire cutting section, 61 ... Electric wire U-shaped set section, 62 ... Electric wire holding rod, 63 ... Electric wire holding rod moving section, 64 ... Selected electric wire, 65 ... Measuring wire, 66, 67 ... Terminal, 68 ... Terminal peeling part, 69 ... Terminal mounting part, 70 ... Terminal wiping part, 71 ... Coloring unit main body part, 72 ... Drying part, 73 ... Design confirmation part, 74 ... Wiping part, 75 ... First Movement mechanism 76 ... Second movement mechanism 77 ... Coloring material 78 ... Coloring head 79 ... First movement mechanism 80 ... Second movement mechanism 81 ... Coloring head main body 82 ... Coloring nozzle 83 ... Heater drying section, 84 ... Warm air drying section, 85 ... Terminal imaging section, 86 ... Image display section, 87 ... Projection inspection section, 88 ... Rear identification electric wire, 89 ... Terminal fitting, 90 ... Automatic terminal insertion machine (terminal insertion section) ), 91 Wire twisting unit, 92 ... manual terminal insertion portions (terminal insertion portion), 93 ... 9 wire between joint, 94 ... sub-harness continuity test unit, 95 ... wiring board 96 ... harness continuity test unit, 97 ... appearance inspection unit

Claims (5)

In the wire harness production system including a coloring unit for coloring the wire covering portion with a coloring material in the system configuration,
As a system configuration on the front side of the coloring unit,
A wire terminal assembly that collects and holds each wire terminal of a plurality of types of wires; and
A selected electric wire lead-out unit that selects a desired electric wire type from the electric wire terminals held in the electric wire terminal aggregate unit and draws out the selected type of electric wire from the electric wire terminal aggregate unit as a selected electric wire, and
Including
Furthermore, as a system configuration of the wire harness production system,
A measuring part for measuring the length of the selected electric wire drawn by the selected electric wire drawing part;
An electric wire cutting unit that cuts the selected electric wire with a length indicated based on the measurement of the measuring unit;
A terminal stripped portion for stripping both ends of the scale-cut electric wire obtained by cutting by the wire cutting portion to expose the wire conductor portion;
A terminal mounting portion for mounting a plurality of types of desired terminal fittings so as to correspond to the electric wire type to the electric wire conductor portion exposed by the terminal peeling portion;
An electric wire holding rod for holding the scale-cut electric wire obtained by the electric wire cutting part for the number of electric wire types and several minutes required for one sub-harness production;
An electric wire U-shaped set portion for setting the measured cut electric wires in a substantially U shape at a desired position of the electric wire holding rod;
An electric wire holding rod moving portion for moving the electric wire holding rod toward the terminal peeling portion and the terminal mounting portion;
Including
In order to project the both ends of the scale-cutting electric wire to the arrangement side of the coloring unit, the electric wire U-shaped set portion is provided with a terminal on the leading end side of the selection electric wire drawn out by the selection electric wire drawing portion. A first mechanism for reversing the direction of the terminal on the leading end side of the drawer while holding the second mechanism, and a second mechanism for holding the terminal on the trailing end side of the leading end of the measuring cut wire obtained by cutting by the wire cutting part. Held by the second mechanism, the third mechanism for carrying and setting the terminal at the leading end of the drawer reversed by the first mechanism to the desired position of the wire holding rod. A fourth mechanism for carrying and setting the terminal on the rear end side of the drawer to a desired position of the electric wire holding rod; and
The third mechanism and the fourth mechanism are held first on the wire holding rod in order to prevent entanglement of the wires when assembling the wire harness or to consider the order of terminal fitting insertion during the production of the sub harness. A wire harness production system, characterized in that each of the desired positions is a set position capable of crossing the middle of the measured cut electric wire. In the wire harness production system according to claim 1,
A first system configuration for producing a rear identification electric wire group having a plurality of rear identification electric wires with terminals obtained by attaching the terminal fittings by the terminal attachment portions and coloring the electric wire covering portions by the coloring unit. Group,
A terminal insertion portion for accommodating the terminal fitting in the rear identification wire group in a cavity of a corresponding connector housing;
A stock part that is arranged between the first system configuration group and the terminal insertion part and stocks the rear identification wire group,
A wire harness production system characterized by including: In the wire harness production system according to claim 1 or 2,
A first that automatically produces a rear identification wire group having a plurality of rear identification wires with terminals obtained by attaching the terminal fittings with the terminal attachment portions and coloring the wire covering portions with the coloring unit. System configuration group,
A second system configuration group that partially produces a sub-harness by automatically accommodating the terminal fitting in the rear identification wire group in a corresponding connector housing cavity; and
A third system configuration group that completes the production of the sub-harness by manually storing the terminal fittings that were not automatically stored in the second system configuration group in the cavity of the corresponding connector housing;
A second stock part for stocking the partially produced sub-harness arranged between the second and third system components;
A wire harness production system characterized by including: In the wire harness production system according to claim 1, 2, or 3,
A wire harness production system, wherein a plurality of types of the terminal fittings are supplied to the terminal mounting portion. In the wire harness production method including a coloring step of coloring the wire covering portion with a coloring material,
Before performing the coloring step using a coloring unit, collecting each wire terminal of a plurality of types of wires and holding each wire terminal in the wire terminal assembly part, and
Selecting a desired electric wire type from the electric wire terminals held in the electric wire terminal assembly part and drawing the selected type of electric wire from the electric wire terminal assembly part as a selected electric wire; and
Including
Furthermore, as the wire harness production method,
A step of measuring the length of the selected electric wire drawn out by the selected electric wire drawing portion from the electric wire terminal assembly portion; and
Cutting the selected wire with the indicated length;
The cutting to wire type content and a necessary number of the one sub harness producing test length cut wire obtained by the process, the steps of each set into a substantially U-shape in a desired position of the wire retaining rod,
Peeling both ends of the scale cut electric wire to expose the electric wire conductor part,
A step of attaching a desired terminal fitting to the electric wire conductor portion by a terminal attachment portion capable of attaching a plurality of types of terminal fittings so as to correspond to the electric wire type,
Moving the wire holding rod for the step of exposing the wire conductor and the step of attaching the terminal fitting; and
Including
In the step of setting each of the measurement cut electric wires in a substantially U shape in order to project the both ends of the measurement cut electric wires to the arrangement side of the coloring unit, the selection electric wires drawn out by the selection electric wire drawing portion Holding the terminal on the leading end side of the drawer while reversing the orientation of the terminal on the leading end side of the drawer by 180 degrees, and holding the terminal on the trailing end side of the drawing of the scale-cutting electric wire obtained by cutting by the cutting step A step of carrying and setting the inverted terminal on the leading end side of the drawer to a desired position of the electric wire holding rod, and a step of holding the terminal on the trailing end side of the drawer to the desired position of the electric wire holding rod Carrying and setting process,
In the step of carrying and setting the terminal on the leading end side of the drawer to a desired position of the electric wire holding rod and the step of carrying and setting the terminal on the trailing end side of the drawer to a desired position of the electric wire holding rod, a wire harness In order to prevent entanglement of the wires during assembly or to consider the order in which the terminal fittings are inserted during sub-harness production, the middle of the wire is crossed with the scale-cut wire previously held by the wire holding rod. The wire harness production method is characterized in that the process is performed with each of the set positions that can be set as the desired positions.

Images