JP6489457B2 - Manufacturing method of wire harness - Google Patents

Description

  The present invention relates to a method for manufacturing a wire harness.

  For the assembly of the wire harness, generally, a wiring board is prepared by pasting the full size diagram of the wire harness on the assembly board, and a wiring board is attached to the wiring board. . The full-scale drawing shows work instructions such as assembly work procedures and attachment instructions, etc., and the operator lays the wires according to the work instructions and attaches them to the predetermined positions of the wired wires and bundles of wires. Attach the parts and assemble the wire harness.

  However, since it is necessary to paste the original drawing according to the design change, a wire harness assembling board device that eliminates such work has been proposed (for example, see Patent Document 1).

  This wire harness assembling drawing board device includes a wiring board on which various jigs necessary for assembling the wire harness can be disposed, an assembly jig that is attached to the wiring board and receives the wired wires, A screen disposed on the back surface of the attached line plate, and an optical projector that projects an image necessary for assembling the wire harness on the back surface of the screen.

  The image of the assembly process of the wire harness is automatically switched according to the three processes of the wire attaching process, the accessory mounting process, and the tape winding process.

JP 2000-195352 A

  However, the conventional wire harness assembly drawing board device does not switch the image of the assembly process of the wire harness according to the work process in the wiring process of the electrical wire. In addition, there is a risk of mistakes in the location of wires and wiring. Further, since the projected image does not include the connector image indicating the connector, there is a possibility that the connection of the connector is wrong.

  Then, the objective of this invention is providing the manufacturing method of the wire harness which can reduce the mistake of the operation | work in the assembly process of a wire harness.

[1] A wire harness manufacturing method for manufacturing the wire harness using a display unit that displays a wire image of the wire constituting the wire harness according to the assembly process of the wire harness, corresponding to the wire image And the process which reads the 1st identification information displayed on the said display part and the 2nd identification information attached | subjected to the said electric wire with a reading means, The said 1st identification information and the said 2nd identification information read by the said reading means A method of manufacturing a wire harness comprising: a step of determining whether or not there is an error in the assembly process of the wire harness by a determination unit; and a step of notifying a determination result by the determination unit by a notification unit.
[2] A wire harness manufacturing method for manufacturing the wire harness using a display unit that displays a connector image of a connector constituting the wire harness according to the assembly process of the wire harness, and corresponds to the connector image The step of reading the third identification information displayed on the display unit and the fourth identification information attached to the connector by the reading means, and the third identification information and the fourth identification information read by the reading means A method of manufacturing a wire harness comprising: a step of determining whether or not there is an error in the assembly process of the wire harness by a determination unit; and a step of notifying a determination result by the determination unit by a notification unit.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to reduce the mistake of the operation | work in the case of wire harness assembly.

FIG. 1 is a cross-sectional view showing a schematic configuration example of the wire harness manufacturing apparatus according to the first embodiment of the present invention. FIG. 2 is a block diagram illustrating an example of a control system of the management apparatus. FIG. 3 is a block diagram illustrating an example of a control system of the projector. FIG. 4 is a block diagram showing an example of the configuration of the barcode reader. FIG. 5A is a diagram illustrating an example of the configuration of the electronic pen system, and FIG. 5B is an external view illustrating a schematic configuration of the electronic pen. 6A and 6B show an assembling jig, FIG. 6A is a front view showing the state before attachment to the screen, FIG. 6B is a plan view of FIG. 6A, and FIG. It is a fragmentary sectional view. FIG. 7A is a diagram illustrating an example of a projected image of the first page. FIG. 7B is a diagram showing an example of the projected image of the second page. FIG. 7C is a diagram illustrating an example of the projected image of the third page. FIG. 7D is a diagram illustrating an example of a projected image of the fourth page. FIG. 7E is a diagram illustrating an example of a projected image of the fifth page. FIG. 8 is a cross-sectional view showing a schematic configuration example of the wire harness manufacturing apparatus according to the second embodiment of the present invention. FIG. 9A is a main part plan view showing a first modification of the screen, and FIG. 9B is a main part sectional view showing a second modification of the screen.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, about the component which has the substantially same function, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.

[First Embodiment]
FIG. 1 is a cross-sectional view showing a schematic configuration example of the wire harness manufacturing apparatus according to the first embodiment of the present invention.

(Overall configuration)
The wire harness manufacturing apparatus 1 includes a screen 2, a housing 3 that supports the screen 2, a plurality (two in the present embodiment) of mirrors 4a and 4b disposed in the housing 3, and a housing 3, a projector 5 that projects projected images onto the back surface 2b of the screen 2 via mirrors 4a and 4b, a management device 6 that manages the assembly of the wire harness, a barcode reader 7 that reads a barcode, And an electronic pen system 8 having an electronic pen 80 for selecting or inputting information with respect to the projected image projected on the screen 2. The management device 6 may be disposed in the housing 3. Further, the number of mirrors is not limited to two and may be three or more. By using two or more mirrors, the housing 3 can be downsized in the depth direction.

  Here, the projection unit 50 described later of the screen 2 and the projector 5 is an example of a display unit. In addition, the “wire harness” means a bundle of a plurality of electric wires, and a connector or a terminal for connecting to a printed circuit board or a device at both ends of each electric wire. “Assembly process of wire harness” includes, for example, an assembly jig mounting process, a wiring process, a harness wiring process including a process of attaching connectors to both ends of the electrical cable, and a process of bundling the wired cables It consists of and. In addition, a process is not restricted to these. Further, the “wire harness assembly” refers to an assembly assembled through a wire harness assembly process.

  For the screen 2, for example, a transparent plate such as an acrylic plate or a glass plate can be used. Further, the surface 2a of the screen 2 is a smooth surface so that the assembly jig 10 can be adsorbed by negative pressure, for example, and the back surface 2b is light-scattered so that the projected image can be viewed from the surface 2a, for example. It is a surface. The screen 2 is not particularly limited as long as it is a rear projection type. For example, the screen 2 may be configured by attaching a light scattering sheet to the back surface of the transparent plate.

  The projector 5 receives projection image data from the communication unit 64 of the management device 6, stores the projection image data in the memory 58, and operates a projection start signal and page from the management device 6 by operating the input unit 62 and the electronic pen 80. Based on the feed signal, page return signal, assembly end signal, etc., projection of the projection image is started, projection image is sent or returned, and projection image data is erased.

  The management device 6 is realized by a personal computer (PC), for example. The detailed configuration of the management device 6 will be described later.

  The bar code reader 7 has a function of reading a bar code, a function of determining whether or not two read bar codes match, and a function of displaying a determination result. The detailed configuration of the barcode reader 7 will be described later.

  The electronic pen system 8 emits an infrared ray 81 and can select a mode, an infrared pen 82 that receives the infrared ray 81 and outputs a light reception signal, and an electronic pen based on the light reception signal from the infrared camera 82 And a processing unit 83 that outputs coordinate information on the surface 2a of the screen 2 at the front end portion of 80 and mode information indicating the mode to the management device 6. The detailed configuration of the electronic pen system 8 will be described later. Here, the infrared camera 82 and the processing unit 83 constitute coordinate acquisition means.

(Management device configuration)
FIG. 2 is a block diagram illustrating an example of a control system of the management apparatus 6. The management device 6 is configured by a CPU (Central Processing Unit) or the like, and is realized by a control unit 60 that controls each part of the wire harness manufacturing apparatus 1, a storage unit 61 that stores various pieces of information, a keyboard, a mouse, and the like. An input unit 62, a display unit 63 realized by a liquid crystal display or the like, and a communication unit 64 that communicates with an external device such as the projector 5, the barcode reader 7, and the processing unit 83 constituting the electronic pen system 8.

  The storage unit 61 includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like, and stores a CPU program 610, projection image data 611, management data 612, and the like.

  The CPU of the control unit 60 operates according to the program 610 and controls each unit of the management device 6 and the entire wire harness manufacturing apparatus 1.

  The control unit 60 transmits a page feed signal, a page return signal, and an assembly completion signal to the projector 5 based on selection of the feed button 26b, the return button 26c, and the end button 26d by the electronic pen 80. In addition, the control unit 60 transmits a projection start signal to the projector 5 based on an operation for instructing the start of projection by the input unit 62. Further, the control unit 60, when the worker ID is input by operating the numeric keypad 26e with the electronic pen 80, and when the start button 26a and the end button 26d with the electronic pen 80 are selected, the worker ID and the assembly start. The management information of the date / time and the assembly completion date / time is stored in the storage unit 61 as management data 612 in association with the wire harness assembly ID.

  The projection image data 611 corresponds to a wire harness assembly ID (identification information) for identifying a wire harness assembly, and includes a plurality of pages corresponding to an assembly process and detailed work processes in the assembly process. The projection image data 611 includes a jig image indicating the position of the assembling jig 10 that can be attracted to the surface 2 a of the screen 2 by negative pressure. Further, the projection image data 611 is corrected in advance so that when projected onto the screen 2, it is displayed as a square or rectangle having the same size as the wire harness and without distortion. The projection image data 611 includes a process name, process contents, image information for displaying buttons for operation instructions as images, character information for displaying process work contents as characters, and the like.

  The management data 612 includes, for example, a worker ID (identification information) for identifying a worker, a wire harness assembly ID, a work start date and time (for example, a date and time when the start button is selected using the electronic pen 80), and a work end date and time. (For example, the date and time when the end button is selected using the electronic pen 80), the determination results regarding the barcode of the electric wire and the connector, and the like are associated with each other and stored in the storage unit 61 as history information.

(Projector configuration)
FIG. 3 is a block diagram illustrating an example of a control system of the projector 5. The projector 5 includes a projection unit 50 that projects a projection image, a CPU, and the like, and includes a control unit 57 that controls each unit of the projector 5 and a memory 58 that stores the projection image data 611 transmitted from the management device 6. Prepare.

  The projection unit 50 receives three LED light sources 51 that respectively emit red light, green light, and blue light, and receives red light, green light, and blue light emitted from each LED light source 51 to receive red image light and green image light. , Three R, G, and B liquid crystal panels 52 that respectively generate blue image light, a light source driver 53 that drives the LED light source 51, a liquid crystal panel driver 54 that drives the liquid crystal panel 52, and three liquid crystals A composite optical system 55 that combines the red image light, the green image light, and the blue image light generated by the panel 52, and a projection that projects the projection image combined by the composite optical system 55 onto the screen 2 via the mirrors 4a and 4b. And a lens 56.

  When receiving the projection image data transmitted from the management device 6, the control unit 57 of the projector 5 stores the projection image data in the memory 58. Further, the control unit 57 reads the projection image data of the first page from the memory 58 based on the projection start signal from the management device 6 and causes the projection image based on the projection image data to be projected on the screen 2. Further, the control unit 57 projects a projection image based on the projection image data of the corresponding page on the screen 2 based on the page advance signal or the page return signal from the management device 6.

(Configuration of barcode reader)
FIG. 4 is a block diagram showing an example of the configuration of the barcode reader 7. The barcode reader 7 is constituted by a CPU or the like, and includes a control unit 70 that controls each part of the barcode reader 7, a barcode sensor 71 that optically reads the barcode, and an electric wire or connector read by the barcode sensor 71. A determination unit 72 that determines whether or not the barcode added to the bar code displayed on the electric wire image or connector image included in the projection image matches the determination result of the determination unit 72 The display part 73 and the communication part 74 which transmits a determination result to the management apparatus 6 by the control part 70 are provided. Here, the barcode added to the electric wire or the connector and the barcode displayed on the electric wire image or the connector image are examples of the connector identification information. The connector identification information is not limited to a one-dimensional code such as a barcode, but a machine-readable code such as a QR code (registered trademark), a two-dimensional code such as PDF417, Data Matrix, Maxi Code, or a unique code, or a dot pattern Or a pattern such as A plurality of types of codes may be combined according to the purpose.

  The judgment result display unit 73 generates, for example, a sound indicating that “Ping Pong” is matched when the two barcodes are matched, and does not match “Boobu”, for example, when both the barcodes are not matched. A sound indicating that may be generated. The determination result display unit 73 turns on a green lamp, for example, when both barcodes match. If the two barcodes do not match, for example, a red lamp may be lit. Furthermore, the determination result may be displayed by both sound and color.

(Configuration of electronic pen system)
FIG. 5A is a diagram illustrating an example of the configuration of the electronic pen system 8, and FIG. 5B is an external view illustrating a schematic configuration of the electronic pen 80.

  The electronic pen 80 includes a cylindrical case 80a, a translucent distal end portion 80b provided so as to be able to appear and retract on the distal end side of the case 80a, a light emitting element 80c provided inside the distal end portion 80b, and a light emitting element. Provided on the surface of the case 80a, a drive circuit (not shown) for driving 80c, a pressure sensor 80d for detecting the pressure applied to the tip 80b from the screen 2 when the tip 80b comes into contact with the screen 2. An external switch 80e, a CPU (Central Processing Unit) 80f provided in the case 80a, and a battery such as a dry battery or a secondary battery provided in the case 80a and supplying power to each part of the electronic pen 80 Prepare. Instead of the pressure sensor 80d, a contact sensor that detects the contact between the tip 80b and the screen 2 may be used.

  The light emitting element 80c emits light in a specific wavelength region, for example, infrared light 81 to the outside via the tip 80b.

  The pressure sensor 80d has a function similar to a mouse click. For example, when the tip 80b is lightly pressed once on the surface 2a of the screen 2, the pressure sensor 80d is left-clicked (for example, selection mode), and is held down for a predetermined time (for example, 2 seconds) for right-click (for example, input mode) It becomes.

  The external switch 80e has a function similar to a mouse click. For example, when the external switch 80e is lightly pressed once, left click (for example, selection mode) is performed, and when the external switch 80e is continuously pressed for a predetermined time (for example, 2 seconds), right click (for example, input mode) is performed.

  The CPU 80f determines which one of the selection mode and the input mode is selected based on the pressure detected by the pressure sensor 80d, and causes the light emitting element 80c to emit the infrared light 81 with a pulse modulated according to the selected mode. The drive circuit is controlled. Further, the CPU 80f determines which one of the selection mode and the input mode is selected based on the operation of the external switch 80e, and causes the light emitting element 80c to emit the infrared light 81 with a pulse modulated according to the selected mode. The drive circuit is controlled.

  The infrared sensor 82 detects the position information and the mode on the infrared sensor 82 of the tip 80b of the electronic pen 80 by receiving the infrared light 81 of the pulse modulated according to the mode, and the light reception signal including the position information and the mode. Is output to the processing unit 83. As such an infrared sensor 82, for example, a sensor provided with a filter that transmits infrared rays 81 and a plurality of sensor elements that are arranged in a matrix at the rear of the filter and detect infrared rays 81 can be used. The position information on the infrared sensor 82 corresponds to the coordinate information on the screen 2.

  The processing unit 83 converts the position information on the infrared sensor 82 into coordinate information on the screen 2 based on the received signal from the infrared sensor 82, and transmits the coordinate information and mode information indicating the mode to the management device 6.

(Operation of the electronic pen system)
Next, an example of the operation of the electronic pen system 8 will be described. When the tip 80b of the electronic pen 80 is lightly pressed once on the surface 2a corresponding to a specific portion (for example, a button) of the projected image projected on the back surface 2b of the screen 2, the pressure sensor 80d detects the pressure, The detection result is sent to the CPU 80f. The CPU 80f determines that the selection mode has been selected based on the pressure detected by the pressure sensor 80d, and controls the drive circuit so that the light emitting element 80c emits the infrared light 81 with a pulse modulated according to the selection mode. The light emitting element 80c emits infrared rays 81 with a pulse modulated according to the selection mode.

  The infrared camera 82 receives the infrared light 81 emitted from the light emitting element 80 c and outputs a light reception signal to the processing unit 83. The processing unit 83 transmits coordinate information on the screen 2 and mode information indicating the selection mode to the management device 6 based on the light reception signal from the infrared camera 82. The control unit 60 of the management device 6 recognizes that a button or the like corresponding to the coordinate information has been selected based on the coordinate information and mode information output from the processing unit 83.

  When the front end portion 80b of the electronic pen 80 is continuously pressed for a predetermined time (for example, 2 seconds) against the surface 2a corresponding to a predetermined area of the projected image projected on the back surface 2b of the screen 2, a pressure sensor is drawn. 80d detects the pressure and sends the detection result to the CPU 80f. The CPU 80f determines that the input mode has been selected based on the pressure detected by the pressure sensor 80d, and controls the drive circuit so that the light emitting element 80c emits the infrared light 81 with a pulse modulated according to the input mode. The light emitting element 80c emits infrared rays 81 with a pulse modulated according to the input mode.

  The infrared camera 82 receives the infrared light 81 emitted from the light emitting element 80 c and outputs a light reception signal to the processing unit 83. The processing unit 83 transmits continuous coordinate information (line information) on the screen 2 and mode information indicating the input mode to the management device 6 based on the light reception signal from the infrared camera 82. The control unit 60 of the management device 6 recognizes that a line represented by the line information has been input based on the line information and mode information output from the processing unit 83. Thereby, for example, the projection image data can be edited.

(Configuration of assembly jig)
6A and 6B show the assembling jig 10, wherein FIG. 6A is a front view showing the state before attachment to the screen 2, FIG. 6B is a plan view of FIG. 6A, and FIG. It is a fragmentary sectional view showing the back.

  The assembling jig 10 includes a dome-shaped main body 11, a suction disk 12 disposed inside the main body 11, a lever portion 13, and a slide shaft 15 that rotatably supports the lever portion 13 around a support shaft 14. And a seat 16 that is provided at the tip of the slide shaft 15 and fixes the slide shaft 15 to the suction disk 12.

  The main body 11 is formed with an opening 11a that is slidable in the vertical direction through the slide shaft 15 at the center thereof.

  The lever portion 13 includes a pair of support pieces 130 that support an electric wire or a wire harness, and a fulcrum portion 131 that is connected to the pair of support pieces 130 and serves as a rotation center of the lever portion 13. The fulcrum part 131 is formed with a cam surface 131a. In the state shown in FIG. 6A, the cam surface 131a is not in contact with the upper surface of the main body 11. When the lever portion 13 is rotated as shown in FIG. 11 is brought into contact with the upper surface of the slider 11, and the slide shaft 15 is pulled upward. When the slide shaft 15 is pulled upward, the central portion of the suction disk 12 is lifted upward, the space inside the suction disk 12 is increased to a negative pressure, and the assembly jig 10 is attracted to the surface 2 a of the screen 2. Is done.

  The main body 11, the lever portion 13, the support shaft 14, the slide shaft 15, and the seat portion 16 are made of, for example, resin or metal. The suction disk 12 is made of an elastic member such as rubber.

(Assembly method)
Next, an example of a method for assembling a wire harness assembly will be described with reference to FIGS. 7A to 7E. 7A to 7E are diagrams illustrating an example of a projected image when the screen 2 is viewed from the front side. In addition, the case where the wiring process is comprised from the wiring process of three wire harnesses is demonstrated below.

  The administrator operates the input unit 62 of the management device 6 and inputs the wire harness identification information. The control unit 60 reads projection image data corresponding to the wire harness identification information input to the input unit 62 from the storage unit 61 and transmits the projection image data to the projector 5. The control unit 57 of the projector 5 stores the projection image data transmitted from the management device 6 in the memory 58. The administrator operates the input unit 62 of the management device 6 to instruct the start of projection. The control unit 60 of the management device 6 transmits a projection start signal to the projector 6. The control unit 57 of the projector 5 reads the projection image data of the first page from the memory 58 based on the projection start signal, and controls the projection unit 50 to project the projection image based on the projection image data of the first page on the screen 2. Let

(1) Assembly jig mounting process (including management information input)
FIG. 7A is a diagram illustrating an example of a projection image of the “assembly jig attachment” process on the first page. The projection image 20 shown in FIG. 3 includes a process name 20a of “attachment of assembly jig”, a jig image 21 of the assembly jig 10 indicating the attachment position of the assembly jig 10, and a wiring position of the electric wire. A wiring instruction line 22 indicating the start of the wire harness, a start button 26a indicating the start of assembly work of the wire harness, a feed button 26b for instructing page feed, a return button 26c for instructing page return, and a wire harness An end button 26d indicating the end of the assembly work and a numeric keypad button 26e are displayed. At this time, the jig image 21 may be highlighted.

  The worker operates the numeric keypad 26e displayed on the screen 2 with the electronic pen 80 and inputs a worker ID for identifying the worker. The processing unit 83 transmits coordinate information and mode information corresponding to the worker ID to the management device 6. Subsequently, the worker selects the start button 26 a displayed on the screen 2 with the electronic pen 80. The processing unit 83 transmits coordinate information corresponding to the start button 26a and mode information indicating the selection mode to the management device 6. Based on the coordinate information and mode information transmitted from the processing unit 83, the control unit 60 of the management device 6 associates the management information of the worker ID and the work start date and time with the wire harness assembly ID as a storage unit 612. 61 is stored.

  The operator confirms “attachment of assembly jig” in the process name 20 a of the projected image 20 and attaches the assembly jig 10 to the position of the jig image 21 projected on the screen 2. When the attaching operation of the assembling jig 10 is completed, the operator performs an operation of selecting the feed button 26b with the electronic pen 80. The processing unit 83 transmits coordinate information corresponding to the feed button 26b and mode information indicating the selection mode to the management device 6. The control unit 60 of the management device 6 recognizes that the feed button 26 b has been selected based on the coordinate information and mode information output from the processing unit 83, and transmits a page feed signal to the projector 5.

(2) Wiring process of harness 1 The control unit 57 of the projector 5 reads the projection image data of the second page from the memory 58 based on the page feed signal from the management device 6, and controls the projection means 50 to control the second page. A projection image based on the projection image data of the eyes is projected on the screen 2. The page feed is performed in the same manner in the following wiring process of the harness.

  FIG. 7B is a diagram illustrating a projected image of the “harness 1 wiring” process on the second page. The projected image 20 shown in the figure includes a process name 20a of “harness 1 wiring” similar to FIG. 7A, a jig image 21, and a wiring instruction line 22, an electric wire image 23a including a barcode 28a, a connector Connector images 24a and 24b including models and barcodes 27a and 27b, and operation buttons 26a to 26e are displayed. At this time, the electric wire image 23a and the connector images 24a and 24b may be highlighted. In the wiring process, the specifications (model, color, length, etc.) of the electric wire are displayed in the projection image. The same applies to the following wiring process.

  The operator confirms the “harness 1 wiring” of the process name 20a of the projected image 20, selects an electric wire having the same color and the same length as the electric wire image 23a, and selects the selected electric wire for assembly. It arrange | positions on the electric wire image 23a which passes between between a pair of support pieces 130 of the tool 10. FIG. At this time, the operator confirms that the wire number displayed on the tag attached to the wire matches the wire number (not shown) displayed in the wire image 23a. Next, the barcode reader 7 reads the barcode 28a written on the wire numbers on the tag side and the wire image 23a side of the wire. The determination unit 72 determines whether or not the two match, and the determination result display unit 73 displays the determination result and notifies the operator. In addition, the control unit 70 of the barcode reader 7 transmits the determination result to the management apparatus 6 via the communication unit 74.

  Next, connectors corresponding to the connector images 24a and 24b are connected to both ends of the electric wire. At this time, the worker confirms that the connector number added to the connector matches the connector number displayed in the connector images 24a and 24b, and then connects the connector. Specifically, the barcode reader 7 reads the barcodes 27a and 27b written together with the connector numbers on the connector side and the connector images 24a and 24b side. The determination unit 72 determines whether or not the two match, and the determination result display unit 73 displays the determination result and notifies the operator. In addition, the control unit 70 of the barcode reader 7 transmits the determination result to the management apparatus 6 via the communication unit 74.

  The control part 60 of the management apparatus 6 receives the determination result regarding an electric wire and a connector via the communication part 64, and memorize | stores the determination result in management data 612 as history information with a process name. Bar code reading, determination result display, and history information storage are performed in the same manner in the harness wiring process described below.

  The wiring of the harness 1 is completed as described above. When the wiring of the harness 1 is finished, the operator selects the feed button 26b with the electronic pen 80. The management device 6 transmits a page turning signal to the projector 5 based on the coordinate signal and mode information received from the processing unit 83.

(3) Wiring process of harness 2 The control unit 57 of the projector 5 reads the projection image data of the third page from the memory 58 based on the page feed signal from the management device 6, and controls the projection means 50 to set the third page. A projection image based on the projection image data of the eyes is projected on the screen 2.

  FIG. 7C is a diagram illustrating a projection image of the “harness 2 wiring” process on the third page. The projected image 20 shown in the figure includes an electric wire image 23b including barcodes 28b and 28c in addition to the process name 20a of the “harness 2 wiring” similar to FIG. , 23c, connector images 24c, 24d, 24e including barcodes 27c to 27e, and operation buttons 26a-26e, and a tape image 25 representing the tape. At this time, the wire images 23b and 23c, the connector images 24a to 24e, and the tape image 25 may be highlighted, or only the tape image 25 may be highlighted. Note that the image of the harness 1 is not displayed.

  The operator confirms “harness 2 wiring” of the process name 20a of the projected image 20, and two electric wires having the same color and the same length as the two electric wire images 23b and 23c. The two selected electric wires are arranged on the electric wire images 23b and 23c passing between the pair of support pieces 130 of the assembling jig 10. At this time, the operator confirms that the wire number displayed on the tag attached to the wire matches the wire number displayed on the wire images 23b and 23c.

  Next, connectors corresponding to the connector images 24c, 24d, and 24e are connected to both ends of the two electric wires. At this time, the operator confirms that the connector number added to the connector matches the connector number displayed in the connector images 24c, 24d, and 24e, and then connects the connector. Next, the tape is wound around a plurality of positions where the tape image 25 is displayed, and the electric wires are bundled. The tape winding operation may be performed in a later process, for example, a process of bundling electric wires.

  The wiring of the harness 2 is completed as described above. When the wiring of the harness 2 is finished, the operator selects the feed button 26b with the electronic pen 80. The management device 6 transmits a page turning signal to the projector 5 based on the coordinate information and the mode information transmitted from the processing unit 83.

(4) Wiring process of harness 3 The control unit 57 of the projector 5 reads the projection image data of the fourth page from the memory 58 based on the page feed signal from the management device 6, and controls the projection means 50 to control the fourth page. A projection image based on the projection image data of the eyes is projected on the screen 2.

  FIG. 7D is a diagram illustrating a projection image of the “harness 3 wiring” process on the fourth page. The projected image 20 shown in the figure includes a process name 20a of “harness 3 wiring” similar to FIG. 7A, a jig image 21, and a wiring instruction line 22, an electric wire image 23d including a barcode 28d, a connector Connector images 24f and 24g including the model and barcodes 27f and 27g and operation buttons 26a to 26e are displayed. At this time, the electric wire image 23d and the connector images 24f and 24g may be highlighted. The images of the harnesses 1 and 2 are not displayed.

  The operator selects an electric wire having the same color and the same color as the electric wire image 23d in accordance with the “harness 3 wiring” of the process name 20a of the projected image 20, and the selected electric wire is assembled into the assembly jig 10. It arrange | positions on the electric wire image 23d which passes between between a pair of support pieces 130 of. At this time, the operator confirms that the wire number displayed on the tag attached to the wire matches the wire number displayed in the wire image 23d.

  Next, connectors corresponding to the connector images 24f and 24g are connected to both ends of the electric wire. At this time, after confirming that the connector number added to the connector matches the connector number displayed in the connector images 24f and 24g, the operator connects the connector.

  The wiring of the harness 3 is completed as described above. When the wiring of the harness 3 is finished, the operator selects the feed button 26b with the electronic pen 80. The management device 6 transmits a page turning signal to the projector 5 based on the coordinate information and mode information received from the processing unit 83.

(5) The step of bundling the electric wires The control unit 57 of the projector 5 reads the projection image data of the fifth page from the memory 58 based on the page feed signal from the management device 6, and controls the projection means 50 to control the fifth page. A projection image based on the projection image data is projected on the screen 2.

  FIG. 7E is a diagram showing a projected image of the process of “bundling electric wires” on the fifth page. In the projected image 20 shown in the figure, in addition to the process name 20a “bundling electric wires” and the jig image 21 similar to FIG. 7A, the electric wire images 23a to 23d of all the harnesses 1 to 3 and the connector images 24a to 24a. 24g and operation buttons 26a to 26e are displayed, and a tube image 26 representing a slitted tube is displayed. Note that the tube image 26 may be highlighted so as to stand out.

  The operator confirms “bundling electric wires” in the process name 20 a of the projected image 20, and bundles the electric wires with a slit tube at the position of the tube image 26.

  The wire harness assembly is completed as described above. When the wire harness assembly is completed, the operator selects the end button 26d with the electronic pen 80. The management device 6 transmits an assembly work end signal to the projector 5 based on the coordinate information and mode information transmitted from the processing unit 83, and registers the assembly end date and time in the memory 58.

  The control unit 57 of the projector 5 erases the projection image data stored in the memory 58 based on the assembly completion signal from the management device 6.

(Operation and effect of the first embodiment)
According to the first embodiment, the following operations and effects are achieved.
(A) When the electric wire is attached on the screen, the barcode displayed on the tag attached to the electric wire and the barcode displayed on the electric wire image included in the projection image are read, and whether or not they match. Since the determination result is used as history information during inspection, the inspection time can be shortened and the reliability of the inspection can be improved.
(B) When connecting the connector to the electric wire, the barcode added to the connector and the barcode displayed on the connector image included in the projection image are read, and the determination result as to whether or not they match is used as history information. Since it is used at the time of inspection, the inspection time can be shortened and the reliability of inspection can be improved.
(C) Since the assembling jig is attached to the screen by suction, the possibility of damaging the screen or damaging the assembling jig is reduced, and the attaching operation is facilitated.

[Second Embodiment]
FIG. 8 is a cross-sectional view showing a schematic configuration example of the wire harness manufacturing apparatus according to the second embodiment of the present invention. In the first embodiment, one screen 2 and the projector 5 are used as the display unit. However, in the second embodiment, two screens 2F and 2R and the projector 5 are used. The configuration is the same as in the first embodiment.

  The wire harness manufacturing apparatus 1 of the present embodiment includes two screens 2F and 2R, one housing 3a that supports the screens 2F and 2R, a half mirror 4c disposed in the housing 3a, and the same housing The projector 5 is arranged in 3a and projects the projected images onto the back surfaces 2b of the two screens 2F and 2R via the half mirror 4c, the management device 6 that manages the assembly of the wire harness, and the screens 2F and 2R. And two electronic pen systems 8 having an electronic pen 80 for selecting or inputting information to the projected image.

  The half mirror 4c transmits the projection image of the projector 5 and projects it onto the screen 2F, reflects the projection image of the projector 5 and projects it onto the screen 2R. Note that the intensity of the reflected light and transmitted light of the half mirror 4c is substantially equal.

(Operation and effect of the second embodiment)
According to the second embodiment, similar to the first embodiment, the effects and effects of the above (a) to (c) are exhibited, and since two screens are provided, it is possible to work simultaneously and manufacture a wire harness. Efficiency can be improved.

[Modification 1]
In each of the above-described embodiments, the assembling jig has been described as being attracted to the surface of the screen by negative pressure. However, the screen has a property that the assembling jig is magnetically attracted to the surface of the screen by magnetic force. It may be used.

  FIG. 9A is a main part plan view showing a first modification of the screen. As the screen 2 having the property of being magnetically attracted, as shown in FIG. 9A, a screen in which metal wires 2c are arranged in a lattice shape may be used. In this case, the assembling jig can be, for example, one provided with a permanent magnet that is rotatably provided and a knob that turns the permanent magnet on and off to turn on the magnetic force. When the assembly jig is attracted to the surface 2a of the screen 2, the knob is rotated to turn on the magnetic force. When removing the assembly jig from the screen 2, the knob is rotated to turn off the magnetic force. An electromagnet may be used instead of the permanent magnet.

[Modification 2]
FIG. 9B is a main part plan view showing a second modification of the screen. As shown in FIG. 9 (b), a transparent sheet 2d containing magnetic powder 2c formed on the surface 2a of the screen 2 may be used. The assembly jig in this case is the same as that of the first modification.

[Modification 3]
In the above embodiment, projection image data is prepared for each assembly process, but the projection image data 611 may change an object (including text) to be projected for each assembly process. In addition, the large classification process may be switched for each page, and the small classification process may be switched for each object.

[Modification 4]
In the above embodiment, the projection image is switched based on the operation of the electronic pen 80. However, the projector 5 may be controlled so as to switch and display the projection image at predetermined time intervals.

[Other variations]
The embodiments of the present invention are not limited to the above-described embodiments, and various embodiments are possible without departing from the scope of the present invention. In each said embodiment, although the wiring process of the harness 1, the wiring process of the harness 2, and the wiring process of the harness 3 each switched the image, all the harnesses were displayed by reducing brightness, the said Highlighting such as highlighting may be performed so that only the portion related to the harness is displayed brightly, such as the portion related to the harness is conspicuous.

  Further, the electronic pen system 8 may use other methods as long as it can read the coordinates of the surface 2a of the screen 2, for example, pointing light (for example, from the electronic pen without bringing the electronic pen into contact with the screen 2). A pointing device that irradiates the screen 2 with infrared rays or laser light and detects the coordinates of the irradiation point with a camera can be used.

  Moreover, although the electronic pen system of each said embodiment is an infrared type using the electronic pen which outputs infrared rays, and the infrared camera which detects infrared rays, the electronic pen which outputs an ultrasonic wave, and the sensor which detects an ultrasonic wave are used. The ultrasonic type used or a camera type in which a translucent sheet on which a special pattern for specifying the coordinates of the electronic pen and the electronic pen is thinly printed is pasted on the surface 2a of the screen 2 may be used.

  Moreover, in each said embodiment, although the wire harness identification information was input by operating the input part 62 of the management apparatus 6, you may input using the electronic pen 80. FIG.

  In each of the above embodiments, the case where a screen and a projector are used as the display unit has been described, but a liquid crystal display, a touch panel display, or the like may be used. When a touch panel display is used, the electronic pen system may not be used.

  Moreover, you may omit a part of component of embodiment of this invention in the range which does not deviate from the summary of this invention.

  In addition, within the scope of the present invention, it is possible to add, delete, change, and replace processes in the assembly process according to the above embodiment.

  The present invention is applicable to railway vehicle harnesses, automobile harnesses, medical harnesses, in-device harnesses, and the like.

DESCRIPTION OF SYMBOLS 1 ... Wire harness manufacturing apparatus, 2 ... Screen, 2a ... Front surface, 2b ... Back surface, 2c ... Metal wire, 2c ... Magnetic powder, 2d ... Transparent sheet, 2f ... Screen, 2r ... Screen, 3, 3a ... Case, 4a 4 ... mirror, 4c ... half mirror, 5 ... projector, 6 ... management device, 7 ... bar code reader, 8 ... electronic pen system, 10 ... assembly jig, 11 ... main body, 11a ... opening, 12 ... suction plate , 13 ... Lever part, 14 ... Support shaft, 15 ... Slide axis, 16 ... Seat part, 20 ... Projection image, 20a ... Process name, 21 ... Jig image, 22 ... Wiring instruction line, 23a-23d ... Electric wire image 24a-24f ... connector image, 25 ... tape image, 26 ... tube image, 26a ... start button, 26b ... feed button, 26c ... return button, 26d ... end button, 26e ... numeral key button, 27 -27f, 28a-28d ... Barcode, 50 ... Projection means, 51 ... Light source, 52 ... Liquid crystal panel, 53 ... Light source drive unit, 54 ... Liquid crystal panel drive unit, 55 ... Composite optical system, 56 ... Projection lens, 57 ... Control unit, 58 ... Memory, 60 ... Control unit, 61 ... Storage unit, 62 ... Input unit, 63 ... Display unit, 64 ... Communication unit, 70 ... Control unit, 71 ... Barcode sensor, 72 ... Determination unit, 73 ... Judgment result display unit 74 ... communication unit 80 ... electronic pen 80a ... case 80b ... tip portion 80c ... light emitting element 80d ... pressure sensor 80e ... external switch 81 ... infrared ray 82 ... infrared camera 83 ... Processing unit 130 ... support piece 131 131 fulcrum part 131a cam surface 610 program 611 projection image data 612 management data

Claims (5)

A wire harness manufacturing method for manufacturing the wire harness using a display unit that displays an electric wire image of an electric wire constituting the wire harness according to an assembly process of the wire harness,
Reading the first identification information displayed on the display unit corresponding to the electric wire image and the second identification information attached to the electric wire with a reading device ;
Based on the first identification information and the second identification information read by the reading device, a step of determining the presence or absence of an error in the assembly process of the wire harness by a determination unit ;
A step of notifying a determination result by the determination unit by a notification unit ;
A method of manufacturing a wire harness comprising: A wire harness manufacturing method for manufacturing the wire harness using a display unit that displays a connector image of a connector constituting the wire harness according to an assembly process of the wire harness,
Reading the third identification information displayed on the display unit corresponding to the connector image and the fourth identification information attached to the connector with a reading device ;
Based on the fourth identification information and the third identification information read by the reading device, and determining the presence or absence of errors in operation in the assembly process of the wire harness by the determination unit,
A step of notifying a determination result by the determination unit by a notification unit ;
A method of manufacturing a wire harness comprising: The notification unit notifies by display or sound based on the determination result of the determination unit .
The manufacturing method of the wire harness of Claim 1 or 2. Transmitting the judgment result of the judging unit to the management apparatus managing the assembly of the wire harness,
The manufacturing method of the wire harness of any one of Claims 1 thru | or 3. The display unit displays a jig image indicating a position of an assembly jig to be attracted to the surface of the display unit.
The manufacturing method of the wire harness of any one of Claims 1 thru | or 4.

Images