JP2010157036A - Assembly line of subassembly parts and production control device thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production line that produces subassembly parts according to a production order of a production plan, while using cell production for production of subassembly parts having a large number of parts, and to provide its production control device. <P>SOLUTION: The production line includes: a battery Assy assembly line 3 which assembles a battery Assy having a comparatively large number of parts by line production using a carrier truck; a PCUAssy assembly cell 2 which assembles PCUAssy with a comparatively small number of parts by cell production which is asynchronous with the battery Assy assembly line 3; a joint station 21 which completes an IPUAssy by joining the battery Assy and the PCUAssy; a test station 21 which tests an IPUAssy completed by the joint station 21; and an IPUAssy stock place 5 which stores the IPUAssy mounted on the carrier truck until it is supplied to a vehicle body assembly line 50. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an assembly line for small parts and a production management apparatus thereof.

  Conventionally, in an assembly line that produces small parts to be supplied to the main line, one person is required to complete the small parts for the purpose of improving the employee's awareness of contribution to production and products, and for the purpose of becoming a workplace for the elderly. Cell production performed by workers is actively performed (for example, see Patent Documents 1 and 2). However, when mass-producing products with a large number of parts, cell production is not suitable, and multiple assembly stations are provided from the upstream to the downstream of the conveyor, and these multiple assembly stations are used for sequential configuration. So-called line production is performed in which parts are assembled to produce a final finished product (see, for example, Patent Document 3). In the case of this line production, production is performed sequentially according to the production plan.

  On the other hand, even in the case of cell production, when the number of component parts constituting a small assembly part is about several tens, it is possible to deal with mass production by providing many cells and performing simultaneous parallel production. However, in order to follow the mass production in the cell production, there are time restrictions, for example, there are restrictions such as few parts and few tightening points.

In addition, in the production line, there are a method for producing small assembly parts in synchronization with the main line and a method for producing small assembly parts in advance of the main line, which are generally selected according to the assembly man-hours. And in the case of the method of making it, it is made ahead of the production plan of the main line according to the assembly man-hours of the small parts, for example, it is made about half a day ahead and stocked in the stock field etc. When it becomes, it is taken out from the stock field and assembled.
JP 2001-242928 A JP-A-2005-313294 JP-A-6-203040

  By the way, in the above-described conventional production line, it is conceivable to appropriately switch between cell production and line production in accordance with the number of parts. There is a problem that time deviation occurs until completion, and it is difficult to produce small assembly parts according to the production order of the production plan.

  The present invention has been made in view of the above circumstances, and an assembly line that can use cell production for production of small assembly parts with a large number of parts and can produce small assembly parts according to the production order of the production plan, and the production thereof. A management device is provided.

  In order to solve the above-described problem, the invention described in claim 1 assembles a plurality of constituent sub-parts (for example, PCUAAssy6 and battery Assy15 in the embodiment) by sub-assembling the constituent parts, and the plurality of constituent sub-sets. It is an assembly line for small parts that combines parts and completes a small part (for example, IPUAAssy 41 in the embodiment) and supplies it to the main line (for example, the vehicle body assembly line 50 in the embodiment). For example, the first component assembly line (for example, the battery assembly assembly line in the embodiment) for assembling the first component assembly component (for example, the battery assembly 15 in the embodiment) by line production using the transport carriage 131 in the embodiment. 3) and the cell that is asynchronous with the first component sub-set line A second component assembly line (for example, PCUAAssy assembly cell 2 in the embodiment) for assembling a second component assembly component (for example, PCUAsy 6 in the embodiment) by production, the first component assembly component, and the second component assembly A joining station (for example, the joining station 21 in the embodiment) that joins parts to complete the small-part part, and an inspection station (for example, IPUAAssy in the embodiment) that inspects the small-part part completed by the joining station. The inspection station 21) and a stock field (for example, the IPUAAssy stock field 5 in the embodiment) for storing the small-part components placed on the transport means until they are supplied to the main line. .

  According to a second aspect of the present invention, there is provided a production management device for performing production management of an assembly line for a small assembly part according to the first aspect, wherein the barcode is provided on the second component small assembly line and includes at least a serial number. A cell barcode reader for reading (for example, the cell barcode reader 101 in the embodiment) and a cell display terminal (for example, in the embodiment) provided on the second configuration sub-set line to display a screen of work contents Cell display terminal 102) and a server (for example, IPUAAssy server 110 in the embodiment) which is connected to the cell barcode reader and the cell display terminal and performs display control of the cell display terminal. Is the production serial number of the second component sub-part as a production plan, and all the second component parts (for example, actual Memory for storing in advance the production order by associating at least a part of the unique serial number (for example, four digits in the embodiment) with the ECU 8, the PDU 9, the DC-DC converter 10, and the compressor driver Assy11 in the embodiment When the barcode information of the second component is inputted from the means (for example, the cell storage means 181 in the embodiment) and the cell barcode reader, the barcode is referred to by referring to the storage information of the cell storage means Cell serial number comparison that compares the serial number of the second component included in the information with at least a part of the serial number of the second component linked to the serial number of the second component sub-part to be assembled this time Means (for example, cell serial number comparison means 183 in the embodiment) and the cell At least a part of the serial numbers of all the second component parts constituting the second component sub-part stored in the cell storage means by the serial number comparison means, and the barcode information input from the cell barcode reader When it is determined that the serial numbers of the second component parts included in the second component parts match, among all the second component parts constituting the second component sub-parts, predetermined second component parts (for example, The cell registration means for setting the serial number of the ECU 8) in the embodiment as the serial number of the second component sub-part, linking the serial number of the other second component to the serial number and registering it in the cell storage means (For example, cell registration means 182 in the embodiment).

  According to a third aspect of the present invention, in the invention according to the second aspect, for a line that is provided on the first component sub-set line, reads a barcode including at least a serial number, and outputs the read barcode information to a server. A bar code reader (for example, the line bar code reader 103 in the embodiment) and a line display terminal (for example, an implementation screen) that is provided in the first configuration sub-set line and displays a screen of work contents based on a server control command. The server includes a line display terminal 104), and the server stores serial numbers unique to the small assembly parts assembled by the small assembly line in the order of production as a production plan, and is assembled by the first component small assembly line. A line memory that stores the serial number of one component and its date of manufacture in association with each other (For example, the line storage means 184 in the embodiment) and the assembly specification for the small component (for example, the IPU in the exemplary embodiment) in which the barcode including the serial number unique to the small component is preliminarily added based on the production plan. When the barcode of the assembly specification 130) is read by the line barcode reader, the serial number of the small assembly to be assembled this time is input from the barcode reader with reference to the storage information of the line storage means The line serial number comparison means (for example, the line serial number comparison means 186 in the embodiment) for comparing the serial number included in the bar code information and the line bar code reader to be assembled this time. Storage of the storage means of the line storage means when the barcode of the component is read The elapsed days acquisition means (for example, the elapsed days acquisition means 188 in the embodiment) for obtaining the elapsed days based on the date of manufacture linked to the serial number of the first component sub-part to be assembled this time The elapsed days comparison means (for example, the elapsed days comparison means 187 in the embodiment) for comparing the elapsed days calculated by the elapsed days acquisition means with a predetermined elapsed days set in advance, and the line serial number comparison When it is determined by the means that the serial numbers match, and the elapsed days obtained by the elapsed days acquisition means is smaller than the predetermined elapsed days by the elapsed days acquisition means, the serial number of the small assembly part is the first. Storage means for lines by associating first component information including at least the serial number and elapsed days of the component And a line registration means (for example, a line registration means 185 in the embodiment).

  According to a fourth aspect of the present invention, in the second or third aspect of the present invention, a screwing member (for example, the bolt in the embodiment) provided in the first component subassembly line for assembling the first component. B) and a tightening device (for example, automatic tightening device 35 and manual tightening device 36 in the embodiment) for outputting tightening information to the server when the screwing member is tightened. Fastening information registration means for registering the fastening information of the fastening device in association with the serial number of the small component registered in the line storage means by the line registration means (for example, fastening information in the embodiment) Registration means 189).

  According to a fifth aspect of the present invention, in the third aspect of the present invention, the combination station barcode reader (for example, a barcode reader provided at the combination station reads a barcode including at least a serial number and outputs barcode information to the server). The combination station barcode reader 106 in the embodiment and the combination display terminal provided in the combination station and displaying a work content screen based on the control command of the server (for example, the combination display terminal 107 in the embodiment) ), And the server stores the serial number unique to the small assembly part and at least a part of the serial number of the predetermined second component part in advance in association with each other (for example, the combined storage in the embodiment). Means 190) and a bar code reader for the coupling station. When the barcode of the part is read and the barcode attached to the assembly specification for the small part is read, the barcode information of the predetermined second component is referred to by referring to the storage information of the coupling storage means Means for comparing the serial number included in the serial number of the predetermined second component linked to the serial number unique to the small assembly part (for example, for the coupling station in the embodiment) As a result of the comparison by the comparison means 192) and the comparison means for the coupling station, when it is determined that the serial numbers match, the serial number unique to the small assembly part, the serial number of the predetermined second component, and the predetermined number Other second components associated with the serial number of the second component and stored in the cell storage means Docking station for registration means for registering the binding storing means in association with the serial number of the component (e.g., binding station for registration unit 191 in the embodiment), characterized in that it comprises a.

According to the first aspect of the present invention, the first composition sub-part assembled by line production on the first composition sub-assembly line and the second composition sub-assembly assembled by cell production on the second composition sub-assembly line by the coupling station. Are combined in order of the first component sub-parts produced in line production, and the completed sub-parts are placed on the conveying means in the order of completion and supplied to the main line. In the meantime, since it can be stored in the stock field, there is an effect that the small parts can be reliably supplied to the main line in the order of production of the production plan while performing cell production.
In addition, it is possible to produce component sub-parts with a relatively large number of parts by line production on the first composition sub-assembly line and produce composition sub-parts with a relatively small number of parts by cell production on the second composition sub-assembly line. There is an effect that it is possible to cope with mass production while performing cell production.

  According to the second aspect of the present invention, when the operator reads the bar code of the second component by the cell bar code reader when performing cell production on the second configuration subassembly line, The serial number comparison means compares the serial numbers of the second component parts constituting the second component sub-part to be assembled this time with the serial numbers based on the barcode information by comparing the serial numbers based on the storage information of the cell storage means. If the two match, for example, by displaying the assembly permission display of the second component sub-parts on the cell display terminal, the operator confirms the display content of the cell display terminal and makes an error in the type of the second component Only when there is not, assembly work can be started, and therefore, there is an effect that erroneous assembly of the second component subassembly parts can be prevented.

  Further, when it is determined by the cell serial number comparison means that the respective serial numbers match, the cell registration means serves as a core of the second component sub-assembly, for example, as the predetermined second component, and even the component specifications are the same. If so, it is necessary to set the serial number of the ECU etc. that can meet the specifications of the small assembly part as the serial number of the second structural subcomponent, so that the second structural subcomponent with the wrong production order must be corrected to the regular order. Since there is no effect, the burden on the operator can be reduced.

  Further, the serial number of the other second component is linked to the serial number of the predetermined second component and registered in the cell storage means, so that the second serial number of the predetermined second component is used as a key. Since the information on the two-component sub-parts can be collected, there is an effect that the traceability can be improved.

According to the third aspect of the present invention, when line production is performed on the first component small assembly line, the operator adds the barcode added to the assembly specification for the small component to the barcode reader for the line, When the barcode of one component is read, the serial number included in the barcode of the assembly specification for the small component and the barcode of the first component are read by the line serial number comparison means of the server. When it is determined that the included serial number matches, and the elapsed days comparison means determines that the elapsed days determined by the elapsed days acquisition means is less than a predetermined number of days set in advance. For example, by displaying the assembly permission display of the first component sub-part on the line display terminal, the worker confirms the display content of the line display terminal and the first component Since the assembly work can be started only when the first component such as a battery is manufactured within a predetermined number of elapsed days, for example, the assembly of the first component sub-part is wrong. There is an effect that it is possible to prevent the use of the deteriorated first component.
Furthermore, since information such as the serial number of the first component part and the number of elapsed days is associated with the serial number of the small assembly part and registered in the line storage means, traceability can be improved.

  According to the invention described in claim 4, since the tightening information in the first constituent small assembly line can be tracked by the serial number of the small assembly component, there is an effect that the traceability can be further improved.

  According to the fifth aspect of the present invention, when the first component sub-part and the second component sub-part are combined, the stored information of the combination storage means is referred to, and the barcode information of the predetermined second component When the serial number included in the serial number of the predetermined second component part linked to the serial number unique to the small assembly part matches, for example, by displaying a permission display that permits assembly of the small assembly part The operator can start the assembly work only when there is no error in the type of the second constituent sub-part to be combined with the first constituent sub-part after confirming the display content of the display terminal for connection. There is an effect that can prevent the pair.

Even if the second component sub-parts with different production orders are mistakenly assembled, they can be assembled as long as the serial numbers of the predetermined second component parts match. Since there is no need to replace the second component sub-part, it is possible to reduce the burden on the operator.
The combination station registration means associates the serial number unique to the small assembly part, the serial number of the predetermined second component, and the serial number of the predetermined second component, and stores them in the cell storage means. Since the serial numbers of the other second component parts can be linked and registered in the combined storage means, there is an effect that the traceability can be further improved.

Next, an assembly line and a production management apparatus according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of an assembly line 1 according to this embodiment. This assembly line 1 is a line for assembling an IPU (integrated power unit) assembly (small assembly part) mounted on a vehicle such as an automobile equipped with a generator motor as a drive source, and is a PCU (power control unit). ) Assembly assembly cell (second component subassembly line) 2, battery assembly assembly line (first component subassembly line) 3, coupling station 21, IPU inspection station 21, unloading station 4, IPU assembly stock field (stock) Field) 5. Here, the IPU is a unit that is mounted behind the seat back of the rear seat of the vehicle and supplies driving power to the generator motor, while charging the generated power of the generator motor during deceleration regeneration. In the following description, “assembly” is simply referred to as “Assy”.

  The PCUAAssy assembly cell 2 is a line for assembling PCUAAssy6 (see FIG. 2), which is a second component sub-assembly part, by cell production, and is arranged in each of a plurality of cells 7 (4 cells in FIG. 1) according to the production plan. PCUAssy6 is assembled and produced in parallel by the operator. The PCUAssy 6 assembled in each of the cells 7 is sequentially placed on a transporting carriage (not shown) in advance, and when it reaches a predetermined number, it is transported to the PCUAssy stock field 13 and stocked.

  As shown in FIG. 2, the PCUAAssy 6 includes an ECU 8 that is an arithmetic unit, a PDU 9 that performs drive regeneration of the generator motor by PWM control based on switching based on a control command of the ECU 8, and a high voltage connected to the PDU 9. A DC-DC converter 10 that converts the output of the battery to a low voltage based on a control command of the ECU 8, and a sirocco fan (described later) that controls cooling of the PDU 9 based on the control command of the ECU 8 when the vehicle is in an idle stop or the like. Compressor driver Assy 11 is formed by being integrally attached to frame 12 as a component (second component).

  The battery assembly assembly line 3 (see FIG. 1) is a line for assembling the battery assembly 15 (see FIG. 3) by the conveyor transport line production. The battery assembly initial station 16, the battery incorporation station 17, and the bolts are assembled along the line. An automatic fastening station 18 and a bolt person fastening station 19 are provided.

  As shown in FIG. 3, the battery Assy 15 includes a battery module 29 in a battery box 28 including a lower frame 24, a pair of side frames 25, 25, an upper frame 26, and an end plate 27. Is done. In the battery module 29, cylindrical unit cells 29 a are arranged and fixed in a zigzag shape when viewed from the axial direction through the grommet 30, and further, the terminal of the unit cell 29 a on the opposite side of the end plate 27 is opposed to the end plate 27. The bus bar plates 31 to be joined are joined by bolts (screwing members) B so that all the single cells 29a constituting the battery module 29 are connected in series.

  A closing plate 26a for closing the opening between the frames is attached to the upper frame 26 by screws b. Grommets are provided between the upper frame 26 and the battery module 29 and between the lower frame 24 and the battery module 29, respectively. The flat elastic body D is narrowly mounted avoiding 30, and the pressing member 34 is narrowly mounted at the position of the grommet 30 to press the battery module 29 from above and below.

  A junction board 32 to which the PCUAAssy 6 is connected is attached to the outer surface side of the bus bar plate 31, and a plus terminal and a minus terminal of the battery module 29 are connected to the junction board 32. An attachment hole 33 is formed in the lower frame 24, and the battery Assy 15 is fixed to the IPU case 40 (described later) through the attachment hole 33 with a bolt or the like. Here, FIG. 3 is a perspective view of the battery Assy 15 viewed upside down. This is because the transport handle (not shown) is attached to the lower frame 24 located above the paper surface. This is because in the assembly line 3, the battery box 28 is transported in an upside-down state and assembled.

  The battery subassembly first station 16 affixes an IPU assembling specification 130, which will be described later, to a conveyor carriage 131 of a conveyor (transfer machine) according to the production plan, and the lower frame 24, bus bar plate 31 and This is a station on which a battery box 28 in a temporarily assembled state composed of a side frame 25, an upper frame 26, and an end plate 27, to which a junction board 32 is not coupled, is placed on a transport carriage 131.

  The battery incorporation station 17 assembles the battery module 29 from the single cells 29a (or may be assembled in advance outside the battery assembly line 3), and incorporates the battery module 29 into the temporarily assembled battery box 28. It is a station that performs work.

  The automatic bolt fastening station 18 is a station for fastening the bolt B of the bus bar plate 31 to the battery box 28 in which the battery module 29 is incorporated by the automatic fastening device 35. The bus bar plate 31 is fastened to the battery module 29 by the same number of bolts B as the number of unit cells 29a. During the fastening, the tightening torque of the bolt B is strictly managed so that an electrical contact failure or the like does not occur.

  The bolt man fastening station 19 re-tightens the bolt B having an abnormal tightening torque among the bolts B fastened by the automatic bolt fastening station 18 by using the manual fastening device 36 and the bolt of the junction board 32. This is the station for tightening B. The bus bar plate 31 and the junction board 32 are electrically connected by a connector. Also in this bolt person tightening station 19, the tightening torque of the bolt B is strictly managed so that contact failure or the like does not occur.

The battery assembly 15 assembled in the battery assembly assembly line 3 described above is transported to the coupling station 21 while being placed on the transport carriage 131 (see FIG. 9).
The coupling station 21 is a station that integrally couples the battery assembly 15 and the PCUA assembly 6 stocked in the PCUA assembly stock field 13 on the IPU case 40 to complete the IPUA assembly 41 that is a small assembly part.

  Specifically, as shown in FIG. 4, the PCUA Assembly 6 and the battery assembly 15 are fixed to the IPU case 40 with screws or the like with the DC-DC converter 10 and the junction board 32 arranged in series, respectively. As a result, the IPUAAssy 41 is assembled. Further, the wirings of the PDU 9 of the PCUA Assembly 6 and the DC-DC converter 10 are connected to the junction board 32 through a connector.

  The IPU case 40 is provided with an intake pipe 42 and an exhaust pipe 43 on a fixed surface of the PCUAsy 6 and a fixed surface of the battery Assy 15, respectively, and a sirocco fan 44 that is electrically connected to the compressor driver Assy11. Yes. Electric power is supplied to the compressor driver Assy11 by the battery module 29. When the compressor driver Assy11 is energized, drive control of the sirocco fan 44 is performed, and heat-generating components such as the PDU 9 are cooled. A pair of brackets 45 are attached to the upper corners of the IPU case 40, and the IPU case 40 is mounted on the back of the seat back of the rear seat of the vehicle by means of bolts or the like via the bracket 45. (Not shown).

The IPUAAssy inspection station 21 is a station for inspecting energization of the IPUAAssy 41 completed by the coupling station 21 described above.
The unloading station 4 is a station for transferring the completed IPUAAsy 41 in advance on a transport cart (not shown) according to the production order.
The IPUAAssy stock field 5 stocks the IPUAAssy 41 that has passed the inspection by the IPUAAssy inspection station 21, and the IPUAAssy 41 stocked in the IPUAAssy stock field 5 is added to the body assembly line 50 (main line) according to the production plan. The worker sequentially enters the vehicle body assembly line 50.

The assembly line 1 of this embodiment has the above-described configuration. Next, a production management apparatus 100 that performs production management of the assembly line 1 will be described with reference to the drawings.
As shown in FIG. 5, the production management apparatus 100 includes a cell barcode reader 101, a cell display terminal 102, a line barcode reader 103, a line display terminal 104, a printer 105, and automatic fastening. A device 35, a manual clamping device 36, a coupling station bar code reader 106, a coupling display terminal 107, and an IPUAAssy server 110 connected to these via a network 109 such as a LAN. .

The cell barcode reader 101 and the cell display terminal 102 are arranged for each cell 7 of the PCUAAssy assembly cell 2.
The cell barcode reader 101 has a barcode attached to each of the ECU8, PDU9, DC-DC converter 10 and compressor driver Assy11 which are constituent parts of the PCUAssy6, and a barcode for identifying the worker possessed by the worker. The read bar code information is output to the IPUAAssy server 110 via the network 109. Note that the barcode added to the PCUAAssy6 component includes a serial number unique to each component.

  The cell display terminal 102 displays a predetermined management screen 115 when a control command is input from the IPUAAsy server 110 via the network 109. FIG. 6 shows an example of the management screen 115. The management screen 115 includes a production plan list display unit 116, a manufacturing plan display unit 117, a component display unit 118, and a cell information display unit 119. It is prepared for.

In the production plan list display section 116, a serial number assigned in the order of manufacture of the day, an identification number (VIN) such as a frame number, a year (Y) model (M) type (T) and an option (O) representing MMTO. , And other information (for example, on the shelf, ST, determination, ECU No, etc. in FIG. 6) are displayed in a list in a linked state.
In the manufacturing plan display section 117, manufacturing serial numbers (serial numbers), identification numbers (VIN), and YMTOs of the component sub-parts assigned to each cell 7 are displayed. In the production plan list display unit 116, a list portion corresponding to the production serial number displayed in the production plan display unit 117 is actively displayed by shading or the like.

  In the component part display unit 118, the types of component parts (ECU, PDU, compressor, converter in FIG. 6) necessary for assembling the component sub-parts corresponding to the production serial numbers displayed on the production plan display unit 117 are displayed. A name column 120 to be displayed and a number column 121 to display a predetermined number of digits (for example, 4 digits) from the left among the serial numbers of the component parts are provided. The individual serial numbers assigned to the components are set so that a predetermined number of digits from the left is common if they have the same specifications.

  Further, in the component display unit 118, when the barcode information of the component read by the cell barcode reader 101 matches the component displayed on the component display unit 118, the cell serial number comparison means 183 ( As shown in FIG. 8, for example, the component name column 120 is displayed in green as a conformity display indicating conformity. On the other hand, when the barcode information of the component read by the cell barcode reader 101 is not compatible with the component displayed on the component display unit 118, it is not compatible as shown in FIG. The name field 120 is displayed in red or the like as a non-conforming display.

The cell information display unit 119 includes a station number display unit 122 that displays the identification number of the cell 7, a name display unit 123 that displays the name of the worker based on the barcode read by the cell barcode reader 101, For example, “GOOD” (see FIG. 8) is displayed when the final work number display unit 124 that displays the last manufacturing serial number that has been assembled and the component name column 120 of the component display unit 118 are all displayed in conformity. And a permission display section 125 for displaying an assembly permission display.
In addition, in the vicinity of the cell information display unit 119, when the assembly of the constituent sub-parts of the production serial number that is active display is completed, a completion search button for searching for the sub-parts to be assembled (next machine) to be assembled next. 126 and a completion end button 127 for ending the assembly operation when the assembly is completed.

  The line barcode reader 103 and the line display terminal 104 are arranged at each station of the battery assembly assembly line 3, and the printer 105 is arranged at the battery assembly first station 16 of the battery assembly assembly line 3. The tightening device 35 is disposed in the bolt automatic tightening station 18, and the manual tightening device 36 is disposed in the bolt manual tightening station 19.

  The bar code reader 103 for a line includes a bar code attached to each component constituting the battery Assy 15, a bar code attached to the IPU assembly specification 130, and a bar code for identifying the worker possessed by the worker And the bar code information read by the line bar code reader 103 is output to the IPUAAssy server 110 via the network 109.

  Here, as shown in FIG. 9, the IPU assembly specification 130 is a specification attached to the vertical frame 132 of the transport carriage 131 that is sequentially transported on the conveyor of the battery assembly assembly line 3. , Printed in advance in the order of production, and stacked on the battery subassembly first station 16. As shown in FIG. 10, the IPU assembly specification 130 includes a serial number (IPU serial No) 134, a lot number (LOT No) 135, and a YMTO (Y-M-T-O136) as a small assembly part. ), IPU serial barcode 137, component part type 138, and date 139.

  The line display terminals 104 arranged in the stations 16 to 19 of the battery assembly line 3 are related to the work contents for each of the stations 16 to 19 based on a control command input from the IPUAAsy server 110 via the network 109. Display a different screen.

  FIG. 11 shows an example of the serial number confirmation screen 140 displayed on the line display terminal 104 of the battery subassembly first station 16. On the line display terminal 104, a production plan list display unit 141, an interrupt processing history display unit 142, and a status display unit 143 are displayed. This serial number confirmation screen 140 is a screen that displays a result of determining whether or not there is an error in the production order according to the production plan and the order of the IPU assembly specifications 130 attached to the transport carriage 131. For example, If there is an error, the corresponding production serial number list in the production plan list display unit 141 is displayed in reverse video. If there is an error, the correct IPU assembly specification 130 is printed by the printer 105 and attached to the transport carriage 131 by the operator.

The interrupt processing history display unit 142 displays history information when an irregular assembly that is not in the production plan is interrupted.
The status display unit 143 includes a status of the line barcode reader (scanner) 103 (readable), a status of the IPUAAsy server (PC) 110 (preparation OK, writing completed), and a status of the conveyor (enrollment, unloading). The current processing state (RUN, BUSY, CLEAR, WRITE, VERIFY) in the program processing for determining the serial number (ID) is displayed.

FIG. 12 shows an example of the battery days management screen 146 displayed on the line display terminal 104 of the battery built-in station 17. The battery days management screen 146 includes a reference setting unit 147, a process display unit 148, a name display unit 149, and an old label corresponding unit 150.
The reference setting unit 147 sets the usable time limit expressed in days with reference to the date of manufacture (full charge date) of the battery module 29 as a component via an input unit (not shown). As the usable period, for example, an appropriate number of days (for example, 27 days or the like) in which discharge proceeds from full charge and the charge amount may fall below about 60% is set. The battery module 29 is composed of single cells 29a having the same manufacturing date.

  The process display unit 148, based on the barcode information of the IPU assembly specification 130 read by the line barcode reader 103 of the battery incorporation station 17, reads the serial number (IPU ASSY NO) of the IPUA assembly 41 and the information on the scheduled installation machine ( For example, VIN, YMTO, LotNo, processing order) are displayed.

  In addition, the process display unit 148 includes a recycle label display unit 151, and a recycle label number unique to the battery module 29, the manufacture, based on a bar code attached to the recycle label display unit 151 in advance on the recycle label display unit 151. The date and the number of days elapsed from the date of manufacture to the present are displayed. When the elapsed days displayed on the recycle label display unit 151 is less than the usable time limit of the reference setting unit 147 described above, a permission display such as “GOOD” is displayed on the assembly permission display unit 152.

  The old label corresponding unit 150 is for manually inputting the battery manufacturing date in order to correspond to the battery module 29 to which the old label having no barcode is attached. In addition, the current year / month / date / time are displayed on the right side of the battery day management screen 146.

  FIG. 13 shows an example of the automatic tightening device management screen 154 displayed on the line display terminal 104 of the bolt automatic tightening station 18. The automatic tightening device management screen 154 displays the tightening torque (BP tightening, JB tightening) of each bolt B when the bus bar plate (BP) 31 and the junction board (JB) 32 are mounted by the automatic tightening device 35. These are displayed in association with the serial number (IPU NO) of IPUAAssy 41 and the recycle label number (battery) of battery module 29, respectively. The information displayed in association with each other is stored in the IPUAAssy server 110 in the same manner. The automatic tightening device management screen 154 also displays the above-described processing order, VIN, and YMTO of the IPUA assembly 41 based on the barcode information of the IPU assembly specification 130.

  FIG. 14 shows an example of the torque battery check screen 155 displayed on the line display terminal 104 of the bolt person fastening station 19. The torque battery check screen 155 displays the IPU assembly information display unit 156. The IPU assembly information display unit 156 includes an upper battery check unit 157 and a lower tightening torque check unit 158, and each tightening torque of each bolt B by the manual tightening device 36 and the battery module 29. Abnormal items such as manufacturing date are highlighted in red. Note that the tightening torque of the manual tightening device 36 is overwritten on the tightening torque data of the automatic tightening device 35.

The coupling station barcode reader 106 and the coupling display terminal 107 are arranged in the coupling station 21.
The barcode reader 106 for the coupling station can read the barcode added to the ECU 8 of the PCUA Assembly 6, the barcode described in the IPU assembly specification 130, and the barcode for identifying the worker possessed by the worker. The read bar code information is transmitted to the IPU server 110.

The connection display terminal 107 displays a screen related to work contents based on a control command input from the IPUAAssy server 110 via the network 109.
FIG. 15 shows an example of the IPUPCU combination management screen 160 displayed as a management screen on the combination display terminal 107. The IPUPCU connection management screen 160 includes an IPU assembly information display unit 161 and a PCU assembly information display unit 162.

  The IPU assembly information display unit 161 displays the same contents as the IPU assembly information display unit 156 described above based on the barcode information of the IPU assembly specification 130 read by the combined station barcode reader 106. On the other hand, the PCU assembly information display unit 162 stores the information in the IPUAAssy server 110 in association with the serial number of the ECU 8 based on the barcode information added to the ECU 8 of the PCUAAsy 6 read by the barcode reader 106 for the coupling station. Information of other components (for example, processing order, VIN, YMTO, serial number of PDU, compressor, converter, etc.) is displayed. And when the serial number of the component does not match the serial number of the production plan data and when the value of the tightening torque is out of the specified value, the corresponding component is highlighted in red, for example, , “Red parts are misassembled” is displayed.

  The inspection display terminal 108 is installed in the IPUAAssy inspection station 21, based on a control command input from the IPUAAssy server 110 via the network 109, the management display having the same content as the IPUPCU connection management screen 160 described above, and the connection station 21. An inspection management screen 165 for displaying an evaluation display (for example, IPU assembly data GOOD) indicating that there is no error in the combined IPUA Assembly 41 is displayed. By this display, only the IPUAAssy 41 having no abnormality such as a wrong assembly is transported to the IPUAAssy stock field 5 by the operator and stocked. In the lower part of the examination management screen 165, data when an abnormality occurs is displayed as a history list.

  The IPUAAssy server 110 includes a cell storage unit 181, a cell registration unit 182, a cell serial number comparison unit 183, a line storage unit 184, a line registration unit 185, a line serial number comparison unit 186, and an elapsed day number comparison unit 187. The number of elapsed days acquisition unit 188, the tightening information registration unit 189, the coupling storage unit 190, the coupling station registration unit 191 and the coupling station comparison unit 192 are respectively configured and connected to the network 109. The network 109 is connected to a vehicle assembly line server 170 of a production management apparatus that performs production management of the vehicle assembly line 50, and the production management data of the IPUAAssy server 110 can be referred to from the vehicle assembly line server 170. .

  The cell storage unit 181 stores the production management data of the PCUAAssy 6 in the PCUAAssy assembly cell 2, and includes the ECU 8, the PDU 9, the DC-DC converter 10, and the manufacturing serial number, VIN, and YMTO. , At least a part of each serial number of the compressor driver Assy11, more specifically, a predetermined number of digits (for example, 4 digits) from the left and the number of digits of each serial number are linked (associated) and stored in advance in production order To do.

  In addition, the cell storage unit 181 uses the cell registration unit 182 for the serial number of the ECU 8 of the assembled PCUA assembly 6 input from the cell barcode reader 101, and includes other components PDU9, DC-DC. The serial numbers of the converter 10 and the compressor driver Assy11 are registered in association with each other. In addition, the operator's barcode information (identification information) input from the cell barcode reader 101 is linked as a work history to the serial number of the ECU 8 so that the PCUAsy 6 can be traced.

  The cell registration means 182 registers the work history in the cell storage means 181 based on the comparison result by the cell serial number comparison means 183, and the ECU 8 inputted by the cell barcode reader 101 as described above. The serial number of the other component is linked to the serial number of the ECU 8 and the operator identification information is linked to the serial number of the ECU 8 and registered in the cell storage unit 181.

  The cell serial number comparison means 183 is inputted by the cell barcode reader 101 under the condition of a predetermined number of digits and the number of digits of the serial numbers of the PCUAAssy6 components stored in the cell storage means 181 in the order of production. It is determined (compared) for each component whether or not the serial numbers of the components match. When it is determined by the cell serial number comparison means 183 that the serial numbers of all the components related to one PCUA Assy 6 match, the serial numbers of the respective components input by the cell barcode reader 101 are registered for cells. Output to means 182. The comparison result by the cell serial number comparison means 183 is sequentially displayed on the management screen 115 described above by the display control by the IPUAAssy server 110.

  Here, in the cell storage unit 181 described above, the serial number of the ECU 8 is registered in association with the serial number of the other components. This is because the PCUAssy 6 can be assembled irrespective of the model, derivation, domestic and foreign specifications of the vehicle body 52 (described later) flowing in the vehicle body assembly line 50. Thereby, even if the order in which the PCUAAssy 6 is taken out from the PCUAAssy stock field 13 is wrong, it is possible to reduce the trouble of replacing the PCUAAssy 6 with a regular order each time. It should be noted that it is unfamiliar to produce by using the serial number of the ECU 8 as a key for the workers of each station other than the cell 7 which is produced using the serial number of the IPUAAssy 41 as a key, and there is a possibility of causing an erroneous assembly. For this reason, except for the cell 7, the screen is displayed using the serial number of the IPUAAssy 41 as a key.

  The line storage means 184 stores the production management data of the battery Assy 15 in the battery Assy assembly line 3, and a serial number unique to IPUAAsy 41 and a serial number unique to the battery Assy 15 are linked as a production plan ( Pre-stored in the order of production.

  The line registration means 185 registers the work history in the line storage means 184. The line registration means 185 associates the serial number input from the line serial number comparison means 186 with the worker identification number and stores the line history. Register to means 184. The line registration means 185 registers the elapsed days or date of manufacture of the battery Assy 15 acquired at the battery incorporation station 17 in the line storage means 184 in association with the serial number of the IPUAAsy 41.

  The line serial number comparison means 186 stores the serial number of the IPUAAssy 41 included in the barcode of the IPU assembly specification 130 inputted by the line barcode reader 103 and the line storage means 184 so that the current production rank is the highest. The serial number of the upper IPUAAssy 41 is compared. If it is determined that the serial number of the IPUAAssy 41 included in the barcode of the IPU assembly specification 130 matches the serial number of the highest IPUAAssy 41 stored in the line storage means 184, this serial number is The information is output to the line registration means 185 together with the worker identification information. Then, the IPU assembling specification 130 in which the barcode is read is pasted on the transport cart 131 by the operator.

  On the other hand, the line serial number comparison means 186 has the serial number of the IPUAAssy 41 included in the barcode of the IPU assembly specifications 130 and the serial number of the IPUAAssy 41 with the highest production order stored in the line storage means 184. When it is determined that they do not match, the serial number of the IPUAAssy 41 having the highest production order stored in the line storage unit 184 is output to the line registration unit 185 together with the worker identification information. At this time, a print control signal is output by the IPUAAssy server 110 to the printer 105 installed in the battery assembly first station 16 of the battery assembly line 3, and a bar code including the serial number of the IPUAAssy 41 having the highest production order is described. The IPU assembling specification 130 is newly printed. Then, this newly printed IPU assembly specification 130 is pasted on the transport cart by the operator.

  Based on the input from the elapsed days acquisition means 188, the elapsed days comparison means 187 sets the elapsed days since the battery module 29 was manufactured as the usable time limit in the reference setting unit 147 of the battery days management screen 146 described above. It is determined (compared) whether or not a certain number of days (hereinafter referred to as an expiration date) is exceeded. As a result of this determination, if it is determined that the expiration date has been exceeded, a message indicating that the battery is not suitable is displayed on the battery days management screen 146 shown in FIG. On the other hand, when it is determined that the expiration date has not been exceeded, the information on the elapsed days is output to the line registration means 185 so as to link the serial number of the IPUAAssy 41 with the information on the elapsed days. The expiration date of the battery module 29 is, for example, the number of days that the charge amount does not decrease to 80% or less when the battery module 29 is inserted into the battery assembly line 3 based on the date of delivery from the manufacturer, and the battery module 29 is mounted on the vehicle body from the delivery. Therefore, the number of days is set so that the amount of charge does not fall below 60% before the engine is operated in the final inspection process.

  The elapsed days acquisition means 188 identifies the date of manufacture of the battery module 29 included in the barcode information of the battery module 29 read by the line barcode reader 103 provided in the battery built-in station 17, and performs this manufacture. The elapsed number of days is obtained from the date, and the obtained elapsed number of days is output to the elapsed day comparison means 187.

  The tightening information registration unit 189 sends the IPUAAssy 41 serial number registered in the line storage unit 184 by the line registration unit 185 to the IPUAAssy server 110 from the automatic tightening device 35 of the bolt automatic tightening station 18. The tightening torque of the bolt B that fixes the input bus bar plate 31 to the battery module 29 is linked and registered. Further, the tightening information registering unit 189 sets the junction board 32 to be input from the manual tightening device 36 of the bolt man tightening station 19 to the IPUAAssy server 110 with respect to the serial number of the IPUAAssy 41 registered in the line storage unit 184. The tightening torque of the bolt B to be attached is linked and registered.

The combination storage means 190 stores the serial numbers of the IPUAAssy 41 in the order of production, and the higher-order digits (for example, 4 digits) of the serial number of the ECU 8 constituting the PCUAsy 6 with respect to the serial numbers of the battery Assy 15 constituting the IPUAAssy 41 And the number of digits of the serial number are linked in advance and stored.
Further, the input result from the combination station registration unit 191 is sequentially registered in the combination storage unit 190.

  The coupling station registration unit 191 searches the storage information in the cell storage unit 181 for the serial number of the ECU 8 input from the coupling station comparison unit 192, and is associated with the matching serial number. The serial number information of the parts, that is, the PDU 9, the DC-DC converter 10, and the compressor driver Assy 11 is associated with the serial number of the IPUAAssy 41 and registered in the combined storage unit 190.

  Based on the input result of the barcode information by the coupling station barcode reader 106, the coupling station comparison means 192 is connected to the serial number of the ECU 8 of the PCUA Assembly 6, the serial number of the IPUA Assembly 41 of the IPU assembly specification 130, and the combination storage means 190. It is determined whether or not the serial number of the IPUAAssy 41 having the highest production order stored and the serial number conditions of the ECU 8 associated with the serial number of the IPUAAssy 41 (higher order digits and digits) are matched. When it is determined that they match, the serial number of the IPUAAssy 41 and the serial number of the ECU 8 by the coupling station barcode reader 106 are linked and output to the coupling station registration means 191.

  The IPUAAssy server 110 includes the cell storage unit 181, the line storage unit 184, the storage information of the combination storage unit 190, the cell serial number comparison unit 183, the line serial number comparison unit 186, and the combination station comparison unit. Based on the comparison result of 192, the screens 115, 140, 146, 154, 155, 160 displayed on the cell display terminal 102, the line display terminal 104, the combination display terminal 107, and the inspection display terminal 108 are displayed. , 165 display control.

The vehicle body assembly line 50 and the production management device 100 according to this embodiment have the above-described configuration. Next, operations of the vehicle body assembly line 50 and the production management device 100 will be described with reference to the drawings.
First, in the four independent cells 7 of the PCUAAssy assembly cell 2 shown in FIG. 1, when the worker starts the assembly work, the barcode for the worker is read by the cell barcode reader 101. The assembly cell display terminal 102 displays a management screen 115 (see FIG. 6) by the display control of the IPUAAssy server 110. The name display unit 123 of the management screen 115 corresponds to the barcode information unique to the operator. Your name is displayed.

  Next, the operator confirms the component display unit 118 on the management screen 115, and sets the ECU8, the PDU9, the DC-DC converter 10, the compressor driver Assy11, and the like, which are components of the PCUAAssy6 to be assembled next, for each component. It is taken out from the sorted cart, and the barcode attached to these components is read by the cell barcode reader 101. Then, the serial number included in the barcode information of each component read from the cell barcode reader 101 and the serial number of the component of PCUAAssy 6 that is included in the storage information of the cell storage unit 181 and is at the top of the production order. The number condition (for example, the left four digits of the serial number and the number of digits of the serial number) is compared by the cell serial number comparison means 183, and if there is a component that does not match as a result of the comparison, the component Is displayed in red (see FIG. 7), the operator takes out the correct component again and causes the cell barcode reader 101 to read the barcode.

  On the other hand, when the serial numbers of all the component parts match, the name column 120 is displayed in green and the permission display “GOOD” is displayed on the permission display portion 125 (see FIG. 8). The operator confirms that there is no error in the selection of the component parts by the permission display, and then starts assembling work of PCUAAssy6. At this time, the IPUA Assembly server 110 associates the serial numbers of other components with the serial number of the ECU 8 included in the barcode information as a key, and registers them in the cell storage unit 181. When the assembly work of one PCUAAssy 6 is completed, the operator places the PCUAAssy 6 on the transport carriage shared by the cells 7 in a pre-stack, and when the assembly work of the next PCUAAssy 6 is started, the completion search of the management screen 115 is performed. A button 126 is pressed. As a result, the PCUAssy6 having the highest production rank is selected. On the other hand, when the work for the day is ended, the completion end button 127 of the management screen 115 is pressed. Note that the transport cart on which the PCUAAssy 6 is placed is transported to the PCUAAssy stock field 13 and stocked when a predetermined number of PCUAAssy 6 is placed. It should be noted that the PCUAAssy 6 is not placed on the transport cart according to the production order because there is a variation in the ability of the operator in each cell 7. In addition, since the cell production is performed prior to the battery assembly line 3, a plurality of transport carts are stored in the PCUAAssy stock field 13.

In the battery assembly station 17 and the bolt person tightening station 19 of the battery assembly assembly line 3, when the worker starts the work, the barcode unique to the worker is read by the line barcode reader 103. Note that the operator's barcode may also be read in the battery subassembly first station 16.
By the display control of the IPUAAssy server 110, the battery day management screen 146 (see FIG. 12) is displayed on the line display terminal 104 of the battery built-in station 17, and the line display terminal 104 of the bolt tightening station 19 includes A torque battery check screen 155 is displayed. In these screens, names corresponding to the barcode information unique to the operator read in the battery built-in station 17 and the bolt person fastening station 19 are displayed.

  In the battery subassembly first station 16, the operator first causes the bar code reader 103 for line to read the bar code of the highest IPU assembling specification 130 that is stacked in advance according to the production order. At this time, the serial number confirmation screen (see FIG. 11) is displayed on the line display terminal 104 of the battery subassembly first station 16, and the serial number of the IPUAAssy 41 having the highest production rank and the line barcode reader 103 are displayed. When the serial number based on the read result matches, the corresponding part of the production plan list display unit 141 is displayed in green. After confirming that the corresponding part of the production plan list display unit 141 is displayed in green, the operator attaches the IPU assembly specification 130 to the transport carriage 131 on the conveyor.

On the other hand, if the serial number of the IPUAAssy 41 having the highest production order does not match the serial number based on the reading result of the line barcode reader 103, the corresponding part of the production plan list display unit 141 is displayed in red, and the printer In step 105, the IPU assembly specification 130 relating to the IPUA Assembly 41 having the highest production order is printed.
When the IPU assembling specification 130 is newly printed from the printer 105, the operator discards the IPU assembling specification 130 whose bar code has been read by the line bar code reader 103 and is printed by the printer 105. The IPU assembly specification 130 is affixed to the transport carriage 131 on the conveyor. Then, the temporarily assembled battery box 28 is placed on the transport carriage 131. The temporary assembly work of the battery box 28 may be performed at the battery small assembly initial station 16.

  In the battery built-in station 17, the battery built-in station 17 first sequentially stores the barcode of the IPU assembly specification 130 attached to the transport carriage 131 and the barcode attached to the temporarily assembled battery box 28. Are read by the line barcode reader 103. Then, based on the serial number of the battery module 29, it is determined whether or not the number of days elapsed since the battery module 29 was manufactured by the IPUAAssy server 110 is within the expiration date. A permission display “GOOD” is displayed on the unit 152.

After confirming the permission display on the assembly permission display unit 152, the operator installs the battery module 29 in the temporarily assembled battery box 28. At this time, the serial number of the battery module 29, the information on the number of days elapsed or the date of manufacture, and the identification information of the worker are associated with the serial number of the IPUA Assembly 41 and registered in the line storage unit 184.
On the other hand, if the number of days elapsed from the date of manufacture of the battery module 29 is not within the usable period, the battery module 29 is removed from the battery assembly assembly line 3 by the operator.

  In the automatic bolt fastening station 18, the barcode of the IPU assembly specification 130 is automatically read by the line barcode reader 103, and the bolt B (for example, 18 bolts) of the bus bar plate 31 is read by the automatic fastening device 35. Tightening). At this time, the automatic tightening device management screen 154 is displayed on the line display terminal 104 of the bolt automatic tightening station 18. Here, the tightening torque of each bolt B by the automatic tightening device 35 is transmitted to the IPUAAssy server 110, and the tightening torque is linked to the serial number of the IPUAAssy 41 and registered in the line storage unit 184.

  At the bolt person fastening station 19, the operator reads the bar code of the IPU assembly specification 130 by the line barcode reader 103 of the bolt person fastening station 19, and at the junction board 32 by the manual fastening device 36. The bolt B (for example, about 4) is tightened. Further, the operator refers to the torque battery check screen 155 (see FIG. 14) displayed on the line display terminal 104 of the bolt person tightening station 19, and the tightening torque is abnormal in the tightening torque check unit 158. The presence of the bolt B displayed in red is confirmed.

  When an abnormality in the tightening torque is found, the operator performs the tightening operation again on the bolt B in which the tightening torque is abnormal due to the tightening operation of the bolt automatic tightening station 18. The tightening torque check unit 158 reconfirms the tightening torque. If the abnormality in the tightening torque is not resolved, the battery Assy 15 is discharged from the assembly line 1. Here, the tightening torque that has been tightened again for the bolt B with an abnormal tightening torque is overwritten with the tightening torque by the automatic tightening device 35 and registered in the line storage means 184. Then, when all the tightening torques are normal, the transport carriage 131 is caused to flow to the coupling station 21.

  In the coupling station 21, an operator first places the IPU case 40 on a work table (not shown). Further, the bar code reader 106 for the coupling station reads the bar code of the IPU assembly specification 130 of the transport carriage 131 on which the battery Assy 15 that has been assembled by the battery assy assembly line 3 is placed. Then, the barcode attached to the ECU 8 of the battery Assy 15 that is pre-stacked on the transport cart of the PCUAAssy stock field 13 is read by the coupling station barcode reader 106. Then, the IPU assembly specification 130 is removed from the transport carriage 131 and attached to the IPU case 40.

  Next, the worker makes an error in the display contents of the IPU assembly information display unit 161 and the PCU assembly information display unit 162 of the IPUPCU connection management screen 160 (see FIG. 15) displayed on the connection display terminal 107 of the connection station 21. After confirming that there is no red display indicating the set (all green display), the battery assembly 15 and the PCUA assembly 6 are sequentially housed in the IPU case 40 and combined to complete the IPUA assembly 41.

In the IPUAAssy inspection station 21, an operator first inspects the IPUAAssy 41 (for example, inspection of voltage value, insulation value, error code of the ECU 8, etc.) using an automatic machine (not shown), and all the inspections pass, and FIG. It is confirmed that “IPU assembly data GOOD” is displayed on the inspection management screen 165 shown in FIG. Also in this IPUAAssy inspection station 21, the expiration date of the battery Assy15 is confirmed by the IPUAAssy server 110.
Then, the operator preloads and loads the IPUAAsy 41 that has passed all inspections in accordance with the order of production on the transport carriage at the unloading station 4 and transports it to the IPUAAssy stock field 5 of the body assembly line 50 that is the main line. To do.

In the vehicle body assembly line 50, an operator of the main line assembly station 51 uses the barcode reader 54 to read the barcode of the vehicle body assembly specification 53 (see FIG. 1) pasted on the vehicle body 52 flowing in the vehicle body assembly line 50. Next, the IPUAAssy 41 is taken out in the order in which they are preloaded on the transport cart taken out from the IPUAAssy stock field 5, and the barcode attached to the IPU assembly specification 130 attached to the IPUAAssy 41 is read by the barcode reader 54. Let me read. Here, the barcode of the vehicle body assembling specification 53 includes the serial number condition of the IPUAAssy 41 attached to the vehicle body 52.
The operator uses the IMABODY connection screen 56 (see FIG. 17) displayed on the display terminal 55 of the vehicle body assembly line 50 to satisfy the conditions included in the barcode of the vehicle body assembly specification 53 and the bar of the IPU assembly specification 130. After confirming that the serial number included in the code matches (for example, all items are displayed in green), the IPUA Assembly 41 is assembled to the vehicle body 52. Here, the IMABODY connection screen 56 displays model information of the vehicle body assembly specifications 53 and assembly information of the IPUAAssy 41 stored in the IPUAAssy server 110. The serial number of the IPUAAssy 41 is linked to the serial number of the vehicle body 52 and registered in the vehicle body assembly line server 170. “IMA” in the IMABODY coupling screen 56 is an abbreviation for an intelligent motor assist system. An example of the vehicle body 52 in this embodiment is a vehicle body (BODY) of a so-called hybrid vehicle having an engine and a motor as power sources. It means that.

  Next, in the vehicle body assembly inspection station 57 of the vehicle body assembly line 50, the barcode of the vehicle body assembly specification 53 is read by the barcode reader 54 so that the inspection of the IPUA Assembly 41 after the vehicle is mounted, and the expiry date of the battery assembly 15 again. After the inspection, the operator confirms that the display indicating that the overall determination is NG is not made on the shipment determination screen 58 (see FIG. 18) displayed on the display terminal 55. Only completed vehicles whose comprehensive judgment is not NG are shipped to the market through the completed vehicle inspection process. In addition, in the shipment determination screen 58 of FIG. 18, the case where comprehensive determination is NG is shown.

Therefore, according to the assembly line 1 in the above-described embodiment, the battery Assy 15 assembled by the battery production in the battery assembly assembly line 3 and the PCUAsy 6 assembled by the cell production in the PCUA assembly assembly cell 2 are coupled by the coupling station 21. Thus, the IPUAAssy 41 is completed in the order of the battery Assy15 produced in the line production, and the completed IPUAAssy41 is placed on the transport cart in the order of completion and supplied to the vehicle body assembly line 50 until the IPUAAssy stock is supplied. Since it can be stored in the field 5, the IPUAAssy 41 can be reliably supplied to the vehicle body assembly line 50 according to the production rank of the production plan while performing cell production.
In addition, since the battery Assy15 having a relatively large number of parts can be produced by line production and the PCUAAsy6 having a relatively small number of parts can be produced by cell production, it is possible to cope with mass production while performing cell production. .

  In addition, according to the production management apparatus 100 of the above-described embodiment, when cell production is performed in the PCUAAssy assembly cell 2, an operator uses the cell barcode reader 101 to perform ECU 8, PDU 9, DC-DC converter 10, and When the barcode of the compressor driver Assy11 is read, the ECU8, PDU9, DC-DC converter constituting the PCUAAsy6 that is assembled this time by the cell serial number comparison means 183 of the IPUAAssy server 110 based on the storage information of the cell storage means 181 10 and the condition of the serial number of the compressor driver Assy11 and the serial number based on the read bar code information are compared, and if these serial numbers match, assembling of PCUAAssy6 in the cell display terminal 102 Since the display is possible, the worker confirms the display content of the cell display terminal 102 and the type (specification) of the ECU 8, the PDU 9, the DC-DC converter 10, and the compressor driver Assy 11 is correct. As a result, the assembly work can be started, and as a result, erroneous assembly of PCUAAssy 6 can be prevented.

  When the cell serial number comparison means 183 determines that the two match, the cell registration means 182 sets the ECU 8 serial number as the PCUAAssy 6 serial number, and the ECU 8 serial number is replaced with other components. Since the serial numbers of a certain PDU 9, DC-DC converter 10 and compressor driver Assy11 are linked and registered in the cell storage means 181, work information of PCUAAssy6 can be aggregated using the serial number of ECU8 as a key. Traceability can be improved. Further, when the serial number of the ECU 8 matches the conditions when coupled to the battery Assy 15 by the coupling station 21, the assembling work of the IPUAAssy 41 can be continued even if the production order due to cell production shifts. It is possible to prevent the burden on the operator from being increased by the cell production.

When performing line production on the battery assembly line 3, the operator uses the line barcode reader 103 to obtain the barcode of the IPU assembly specification 130 attached to the transport carriage 131 and the barcode of the battery module 29. When each is read, the serial number comparison unit 186 of the IPUAAssy server 110 determines that the serial number included in each bar code information matches, and the elapsed date comparison unit 187 further manufactures the date of manufacture of the battery module 29. When it is determined that the number of days elapsed since the time is less than a predetermined number of days set in advance, the assembly display of the battery Assy 15 can be displayed on the line display terminal 104, so that the operator can display the line display terminal 104. Check the displayed content of the battery module 29 No error, also only when the battery module 29 is manufactured within a predetermined age, it is possible to start assembly operations. As a result, it is possible to prevent the battery module 29 from being misassembled and the deteriorated battery module 29 from being insufficiently charged.
Further, when the assembly permission display of the battery assembly 15 is performed, the information of the battery module 29 is linked to the serial number of the IPUA assembly 41 and registered in the line storage unit 184, so that the traceability can be improved.

  Since the tightening information in the battery assembly line 3 can be traced by the serial number of the IPUAAssy 41, further traceability can be improved.

  Further, when the battery Assy 15 and the PCUAAsy 6 are combined, the serial number of the ECU 8 associated with the serial number included in the barcode information of the ECU 8 and the serial number unique to the IPUAAssy 41 is referred to with reference to the storage information of the combined storage unit 190. When the number matches, the permission display for permitting the assembly of the IPUAAssy 41 can be made. Therefore, the operator confirms the display content of the display terminal 107 for combination and selects the type (specification) of PCUAssy6 to be combined with the battery Assy15. Assembling work can be started only when there is no error. As a result, even if the production order of the IPUAAssy 41 is shifted, the assembly can be performed as long as the serial number of the ECU 8 matches. IPUAAssy41 while reducing the burden on the user It is possible to prevent the pair.

  In addition, the combined station registration unit 191 makes the serial number unique to the IPUAAssy 41, the serial number of the ECU 8, and the other PDUs 9 and DC-DC linked to the serial number of the ECU 8 and stored in the cell storage unit 181. Since the converter 10 and the serial number of the compressor driver Assy 11 can be linked and registered in the combined storage unit 190, the traceability can be improved.

Note that the present invention is not limited to the above-described embodiment, and may be used for a production line for small parts other than the IPUAAssy 41.
Further, in the above-described embodiment, a case has been described in which the correctness of the PCUAAssy6 component parts is determined based on the conditions of the higher-order serial number and the serial number digits, but the number of digits of the serial number may be omitted.

It is a schematic block diagram of the production line in embodiment of this invention. It is a perspective view of PCUAAssy in an embodiment of the invention. It is a disassembled perspective view of the battery Assy in embodiment of this invention. It is a perspective view of IPUAAssy in an embodiment of the invention. It is a block diagram which shows the structure of the production management apparatus in embodiment of this invention. It is a figure which shows the management screen in embodiment of this invention. It is a figure which shows the nonconformity display in the management screen of FIG. It is a figure which shows the conformity display in the management screen of FIG. It is a figure which shows the conveyance trolley | bogie of the battery Assy assembly line in embodiment of this invention, (a) is a side view, (b) is a front view. It is a figure which shows the IPU assembly | attachment specification in embodiment of this invention. It is a figure which shows the serial number confirmation screen in embodiment of this invention. It is a figure which shows the battery days management screen in embodiment of this invention. It is a figure which shows the automatic clamping apparatus management screen in embodiment of this invention. It is a figure which shows the torque battery check screen in embodiment of this invention. It is a figure which shows the IPUPCU coupling | bonding management screen in embodiment of this invention. It is a figure which shows the test | inspection management screen in embodiment of this invention. It is a figure which shows the IMABODY coupling | bonding screen in embodiment of this invention. It is a figure which shows the shipment determination screen in embodiment of this invention.

Explanation of symbols

2 PCUAssy assembly cell (second component assembly line)
4 Linking station 5 IPUAAssy stock field (stock field)
6 PCUAAssy (component sub-component, second component sub-component)
8 ECU (second component)
9 PDU (second component)
10 DC-DC converter (second component)
11 Compressor driver Assy (second component)
15 Battery Assy (component sub-component, first component sub-component)
21 IPUAAssy inspection station (inspection station)
35 Automatic tightening device (Tightening device)
36 Manual tightening device (Tightening device)
41 IPUAAssy (small assembly)
50 Body assembly line (main line)
DESCRIPTION OF SYMBOLS 101 Cell barcode reader 102 Cell display terminal 103 Line barcode reader 104 Line display terminal 106 Combined station barcode reader 107 Combined display terminal 110 IPUAAssy server (server)
130 IPU assembly specifications (assembly specifications for small assembly parts)
131 Conveyor cart (conveyance means)
181 Cell storage means 182 Cell registration means 183 Cell serial number comparison means 184 Line storage means 185 Line registration means 186 Line serial number comparison means 187 Elapsed days comparison means 188 Elapsed days acquisition means 189 Tightening information registration means 190 Coupling storage means 191 Coupling station registration means 192 Coupling station comparison means B Bolt (screwing member)

Claims (5)

Assembling a plurality of constituent sub-parts by sub-assembling the constituent parts, combining the plurality of constituent sub-parts to complete the sub-parts and supplying them to the main line,
A first composition subassembly line for assembling the first composition subassembly parts by line production using a conveying means;
A second component subassembly line for assembling a second component subcomponent by cell production asynchronous with the first component subassembly line;
A combining station for combining the first component sub-part and the second component sub-part to complete the sub-part;
An inspection station for inspecting the assembled parts completed by the coupling station;
A carry-out station for transferring the small assembly parts that have passed the inspection by the inspection station to a conveying means;
An assembly line for small parts, comprising a stock field for storing the small parts placed on the conveying means until the small parts are supplied to a main line. A production management device for performing production management of an assembly line of small parts according to claim 1,
A barcode reader for a cell that is provided in the second configuration sub-set line and reads a barcode including at least a serial number;
A display terminal for a cell that is provided in the second configuration sub-assembly line and displays a screen of work content;
A server connected to the cell barcode reader and the cell display terminal and performing display control of the cell display terminal;
The server
Cell storage for storing production serial numbers of second component sub-parts and at least part of serial numbers unique to all second component parts constituting the second component sub-parts as production plans and storing in advance in production order Means,
When the barcode information of the second component is input from the cell barcode reader, the serial number of the second component included in the barcode information and the current assembly are referred to by referring to the storage information of the cell storage means. A serial number comparison means for a cell for comparing at least part of the serial number of the second component linked to the serial number of the second component sub-part to be performed;
By the cell serial number comparison means, at least a part of the serial numbers of all the second component parts constituting the second component sub-part stored in the cell storage means and the bar code input from the cell barcode reader When it is determined that the serial number of the second component part included in the code information matches, among all the second component parts constituting the second component sub-part, the predetermined second component part set in advance Cell registration means for setting the serial number as the serial number of the second component sub-part, linking the serial number of the other second component to the serial number and registering it in the cell storage means, Production management equipment. A bar code reader for a line that is provided in the first configuration sub-set line, reads a bar code including at least a serial number, and outputs the read bar code information to a server;
A line display terminal that is provided in the first configuration sub-assembly line and displays a screen of work content based on a control command of the server;
The server
As a production plan, serial numbers unique to the small assembly parts assembled by the small assembly line are stored in the order of production, and the serial numbers of the first structural components assembled by the first structural assembly line are linked to their manufacturing dates. Storing means for storing the line,
When the barcode of the assembly specification for the small assembly, in which the barcode including the serial number unique to the small assembly is added in advance based on the production plan, is read by the barcode reader for the line, the storage information of the line storage means is stored. Referring to the serial number comparison means for the line for comparing the serial number of the small assembly to be assembled this time with the serial number included in the barcode information input from the barcode reader,
When the barcode of the first component to be assembled this time is read by the line barcode reader, the stored information in the line storage means is referred to and linked to the serial number of the first component subassembly to be assembled this time. An elapsed days acquisition means for determining the elapsed days based on the manufactured date of manufacture;
An elapsed days comparison means for comparing the elapsed days determined by the elapsed days acquisition means with a predetermined elapsed days set in advance;
When it is determined by the serial number comparison means for lines that each serial number matches, and when the elapsed days obtained by the elapsed days acquisition means is less than the predetermined elapsed days by the elapsed days acquisition means, The line registration means for associating the serial number with the first component information including at least the serial number of the first component and the number of days elapsed and registering it in the line storage means. Production management device. A tightening device provided in the first component subassembly line, tightening a screwing member for assembling the first component, and outputting tightening information when the screwing member is tightened to the server;
The server includes a tightening information registration unit that links and registers the tightening information of the tightening device to the serial number of the small assembly registered in the line storage unit by the line registration unit. Item 4. The production management device according to Item 2 or 3. A barcode reader for a coupling station that is provided in the coupling station and reads a barcode including at least a serial number and outputs barcode information to the server;
A display terminal for connection provided on the connection station for displaying a screen of work contents based on a control command of the server;
The server
A combination storage means for storing a serial number unique to the small assembly part and at least a part of the serial number of the predetermined second component in advance,
When the barcode of the predetermined second component is read by the barcode reader for the coupling station, and the barcode added to the assembly specification for the small component is read, the stored information of the coupling storage means is referred to A combination station comparison means for comparing the serial number included in the barcode information of the predetermined second component and the serial number of the predetermined second component linked to the serial number unique to the small assembly component;
When it is determined that the serial numbers match as a result of the comparison by the coupling station comparison means, the serial number unique to the sub-part, the serial number of the predetermined second component, and the predetermined second component And a coupling station registration unit that links the serial number of the other second component that is linked to the serial number and that is stored in the cell storage unit and registers the serial number in the coupling storage unit. Item 4. The production management device according to Item 3.

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