JP3989427B2 - Vehicle assembly line - Google Patents

Description

  The present invention divides a vehicle assembly line into zones divided on the basis of mounting work positions and functional configurations of assembly parts, and performs quality assurance of each functional zone by performing inspection and repair in each functional zone. The present invention relates to a vehicle assembly line for the purpose of self-containment.

In the conventional vehicle assembly line, parts are gathered by sub-lines outside the main line and supplied to the main line in a sub-assembled state. In some cases, a human manual assembly zone is provided, and assembly inspection is performed at the end of the main line. (For example, refer to Patent Document 1).
US Pat. No. 4,683,651

  In such a conventional vehicle assembly line, after passing through a plurality of assembly processes or zones, appearance inspection and functional inspection are performed in the inspection process. A technique is generally sent to the process and repaired into a finished product.

In addition, the assembly line of vehicles has been developed to share assembly information through a computer network. The vehicle assembly line has a data input device and a data display device composed of a computer or the like in the inspection process and repair process. Is input from the data input device, and the defect point is displayed on the display device of the repair process, and in the repair process, the repair is promptly executed based on the displayed defect point.
However, the conventional vehicle assembly line is configured to inspect the appearance and functions at the completed vehicle inspection department established after leaving the assembly line, and repair the defects that occurred in a common repair process. When many problems occur in the inspection, for example, when problems occur in the initial stage of the assembly line, there is a problem that the burden of the repair process becomes enormous.

  Furthermore, when there are many repair items for a defect, there is a problem that the information supplied from the repair process to the department in charge of production becomes enormous and the response is delayed.

  Accordingly, an object of the present invention is to provide an assembly line that can easily realize mutual support of workers and can quickly find an assembly defect.

The invention according to claim 1 is a vehicle assembly line in which assembly parts are sequentially assembled to the vehicle body after the painting process is finished, and the vehicle is completed through inspection, and the vehicle assembly line is divided into a plurality of functional zones ( A) to (D) are divided into a plurality of functional zones (A) to (D) , and the wiring and piping are installed in the engine room, vehicle compartment, trunk room, etc. Mainly install instrument panels, pedals, floor mats, ceiling linings, side linings on the line / transmission outfitting zone (20) for installing equipment such as and interior zone (30) for performing interior, the body having been subjected to the interior, the suspension in the floor, the underside equipment zone for performing underside equipment consisting mainly of attaching the engine (40), underside equipment The vehicle body finishing, window glass, mainly comprising mounting the bumper becomes from the exterior zone for performing exterior (50), the distal end of each of a plurality of function-specific zone (A) ~ (D), without running the vehicle An inspection section (21) that performs static inspection and a repair section (22) that performs repair based on defect information found in this inspection are attached, and the repair section (22) while repairing a defect entry be some influence, the end of the assembly line is provided a composite guarantee zone (60), the inspection repair item of each function by zone so as to composite inspected, through lines and transmission equipment zone (20 ) And the interior zone (30), and between the lower outfitting zone (40) and the exterior zone (50), an overhead conveyor for absorbing line tact due to time variation of inspection and repair Storage (2), characterized in that a (3).

A second aspect is characterized in that, in the first aspect, a static function is guaranteed in the combined guarantee zone, and a vehicle is supplied to a dynamic mechanical inspection process set next to the assembly line.

A third aspect of the present invention is characterized in that, in the first or second aspect, the composite warranty zone includes a line repair process for repairing on the line and a side repair process for repairing by taking down from the line.

As described above, the vehicle assembly line according to the present invention includes a zone inspection process for each zone according to function, and performs inspection of static functions corresponding to each zone and repair of defective points. As a result, the quality of the static function can be guaranteed and the production efficiency can be improved.
In addition, the repair data in the own zone and the repair data in the composite warranty zone are fed back, so the countermeasures for defects can be immediately reflected in the assembly, and the quality can be stabilized quickly from the start of production. Can do.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a configuration diagram of a vehicle assembly line according to the present invention. A vehicle assembly line 10 is assembled to a vehicle body 11 that has finished a painting process, and parts related to wiring / transmission equipment are sequentially assembled and inspected. Line / transmission equipment zone 20 to be repaired as needed, interior parts are assembled and inspected sequentially, interior zone 30 to be repaired as needed, and lower parts are sequentially assembled, inspected, and repaired as necessary The lower armoring zone 40, the exterior parts 50 are sequentially assembled and inspected, and repaired as necessary, and the items not repaired in each zone 20-50 are inspected and repaired (each zone The composite guarantee zone 60 to which the repair of the items that could not be repaired by the repairing part) is performed is arranged in this order.

FIG. 2 is an explanatory diagram of zone divisions in the vehicle assembly line according to the present invention, in which wiring, piping, cables, work in the engine room, and other pre-assembly work are integrated into the “through / transmission fitting”.
Instrument panel, pedals, floor mats, ceiling lining, side lining, and other interior work will be integrated into “Interior”.

The assembly work from the bottom, suspension, (tires), engine, etc., will be integrated into the “lower armoring”. (Tire) is basically assembled by the following exterior work, but may be assembled by this lower armoring.
“Exterior” will consolidate tires, window glass, bumpers, doors, seats, after-engine room work, and other exterior work.

  FIG. 3 is a detailed explanatory diagram of the line / transmission fitting zone 20 of FIG. 1. In the line / transmission fitting zone 20, parts related to the line / transmission fitting are divided into a plurality of steps (step a → step b →. ··································································································································· After completing the assembly in this zone. For example, in step a, a wiper nozzle is assembled, and in step n, a starter cable is assembled.

The inspection unit 21 performs an inspection that can be performed without running the vehicle. This type of inspection is called “static inspection”.
In addition, the repair unit 22 completely repairs items that are affected in the subsequent process unless repair is performed here. Whether or not to repair is determined based on the judgment that the repair cannot be completed within a predetermined time (about 5 minutes).

  The in-zone configurations of the interior zone 30, the lower armored zone 40, and the exterior zone 50 in FIG. 1 are the same as the line / transmission armored zone 20 in FIG.

  FIG. 4 is a view showing a specific example of the vehicle assembly line according to the present invention. As shown by the arrow (1), the vehicle body 11 is transported from the painting process (not shown) by the overhead conveyor OH1 and put into the assembly line 10 to overhead. Change the height of the conveyor OH1 to install the lower surface of the car body, then on the slat conveyor, which is an on-floor conveyor, the worker sequentially assembles parts such as pipes and auxiliary equipment to the car body. A zone 20 is configured. A zone inspection is performed at the inspection section 21 at the rear of the communication line / transmission equipment zone 20, and a zone repair is performed at the repair section 22.

  Next, it is transferred to the overhead conveyor OH2, and the vehicle body is sent to the interior zone 30, and the interior parts such as the instrument panel described above are sequentially assembled in the interior zone 30 using the slat conveyor as a conveying means. A zone inspection is performed at the inspection section 31 at the rear of the interior zone 30, and a zone repair is performed at the repair section 32.

  At the exit of the interior zone 30, the vehicle body 11 is transferred to the overhead conveyor OH3. The lower parts such as the engine described above are sequentially assembled in the lower armoring zone 40. At this time, since the vehicle body 11 is lifted by the overhead conveyor, an operator can freely enter the vehicle body. Therefore, in the lower armored zone 40, the lower parts can be assembled efficiently. A zone inspection is performed by the inspection unit 41 at the rear of the lower armored zone 40, and a zone repair is performed by the repair unit 42.

In the next exterior zone 50, while being suspended and conveyed on the overhead conveyor OH3, the tire is mounted on the step 50a and the slat conveyor, and the exterior parts such as the door and window glass are assembled to the vehicle body 11. . The zone inspection is performed by the inspection unit 51 at the rear of the exterior zone 50, and the zone repair is performed by the repair unit 52.
Thereafter, the operation is transferred to the overhead Don Bear OH4, and in the combined guarantee zone 60, liquid injection work, battery installation, gasoline injection, electrical equipment inspection, engine start confirmation, and other inspections and repairs are performed.

  In this embodiment, as shown in FIG. 4, a storage function is provided for absorbing line tact due to time variation of inspection and repair between zones 20 and 30, between zones 40 and 50, and between zones 50 and 60. (2), (3), and (4) attached to the overhead conveyors OH2, OH3, and OH4 correspond thereto.

  FIG. 5 is an explanatory view of the zone inspection process and the computer LAN network outline according to the present invention, and the zone inspection performed by the inspection units 21, 31, 41, 51 of each zone is the "assembly specifications" For example, the body number or the like is read as input information from the memory of the host computer by a bar code reader, the read assembly specifications are displayed on an input / display means such as a touch panel, and inspection is performed based on the assembly specifications.

  The inspection result is inputted with data from a touch panel or a keyboard (not shown) together with the defective points, and the inputted data is fed back to all other production related departments and displayed on a display means (display). In the figure, zones A to D correspond to the zones 20, 30, 40 and 50 in FIG. 2, and correspond to the function-specific zones A to D described in FIG.

  The repair staff reads the “Assembly specifications” with a barcode reader and displays the defect information supplied from the inspection units 21, 31, 41, 51 on the input / display means such as a touch panel, and within each zone. Judgment is made as to whether or not repair is possible, repairs are carried out by repair parts 22, 32, 42, and 52 based on the repair criteria for determination of repairable items, and repair data and unrepaired data are input from the touch panel. It is displayed on the display means in its own zone and the display means of all other production related departments.

  In this way, since the zone inspection process for inspecting the assembly of the own zone and repairing defects is provided after the final process (n process) of the function-specific zone, the quality assurance corresponding to the assembly in the own zone is executed. Items that cannot be repaired can be provided to necessary departments such as the composite guarantee zone 60.

  Also, repairable ones of defects that occurred in the own zone are repaired, and the repair data is fed back to the assembly process of the own zone, so that the repair contents can be immediately reflected in the assembly.

  Furthermore, since the repair contents can be reflected in the assembly of the own zone based on the repair data fed back from the dress-up process, the quality in the own zone can be guaranteed.

FIG. 6 is a generalized layout diagram of the vehicle assembly line of the embodiment of FIG. 1. The assembly line 10 is divided into functional zones A (20A), functional zones B (30B), and functional zones C (40C). And the function-specific zone D (50D) and the composite guarantee zone 60 are shown.
A functional unit (for example, instrument panel in 101a, engine in 101b, door in 101c) is assembled to the zone with sublines 101a, 101b, and 101c, and an inspection process is arranged at each terminal of the subline to Guarantee quality.
A function-specific zone may be divided into zones based on the aggregation of multiple types of vehicle parts and the mass of components in each part and the components of each single function that make up the parts. Can be changed.

  Although not shown, the functional zone A (20A), the functional zone B (30B), the functional zone C (40C), and the functional zone D (50D) include an inspection section for performing zone inspection and repair for performing zone repair. Each part.

FIG. 7 is a block diagram of the main part of the dress-up process according to the present invention, and is an explanatory diagram of the dress-up process 65 of FIG.
The dress-up process 65 includes a line repair process 66 and an outboard repair process 67.
The line repair process 66 displays the failure information transmitted from the inspection section of each function-specific zone 20 to 50 on the display means, and completes the repair in the flow of the line on the basis of this failure information. The function is guaranteed and supplied to the dynamic function inspection process 70 set next to the assembly line.

  In the side-out repair process 67, defect information transmitted from the inspection section of the function-specific zones 20 to 50 of the assembly line is displayed on the display means, and repair is not possible in the line repair process 66 based on this defect information (for example, the line In this flow, the repair time is insufficient, etc.) The defect point is completely repaired and the static function of the vehicle is guaranteed and supplied to the dynamic function inspection process 70.

  As described above, the present invention divides a vehicle assembly line into functional zones, and provides an inspection unit and a repair unit in each zone to assemble the own zone (the zone to which it belongs; the same applies hereinafter) and static functions. By assuring the quality of the vehicle, it aims to build a self-contained vehicle assembly line with high production efficiency in each static function zone.

  Suitable for vehicle assembly line.

Configuration diagram of vehicle assembly line according to the present invention Explanatory drawing of the zone division in the assembly line of the vehicle which concerns on this invention Detailed explanatory diagram of the communication / transmission outfitting zone 20 of FIG. The figure which shows the specific example of the assembly line of the vehicle which concerns on this invention Explanatory drawing of the zone inspection process and computer LAN network outline according to the present invention General layout diagram of vehicle assembly line according to the present invention Block diagram of the main part of the dress-up process according to the present invention

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle assembly line, 11 ... Car body, 20 ... Connection / transmission equipment zone, 20A ... Function-specific zone A, 21, 31, 41, 51 ... Inspection part, 22, 32, 42, 52 ... Repair part, 30 ... Interior zone, 30B ... Functional zone B, 40 ... Lower armored zone, 40C ... Functional zone C, 50 ... Exterior zone, 50D ... Functional zone D, 60 ... Composite guarantee zone, 65 ... Dress up process, 66 ... Line repair process, 67 ... Side-by-side repair process.

Claims (3)

In the assembly line of the vehicle, the assembly parts are assembled to the vehicle body in order after completing the painting process, and the vehicle is completed after inspection.
The vehicle assembly line is divided into a plurality of functional zones (A) to (D) ,
The plurality of functional zones (A) to (D) are:
A wiring / transmission equipment zone (20) for attaching wiring and piping to the underbody, engine room, vehicle compartment, trunk room, etc., and attaching equipment such as auxiliary equipment to the vehicle body that has undergone the painting process,
An interior zone (30) for interior decoration mainly consisting of installation of instrument panels, pedals, floor mats, ceiling linings, and side linings on the vehicle body after completion of the wiring and transmission fittings,
A lower armoring zone (40) for performing the lower armoring mainly for attaching a suspension and an engine under the floor to the finished car body,
It consists of an exterior zone (50) for the exterior that mainly consists of wind glass and bumper mounting on the car body that has finished the lower armoring,
Based on the inspection section (21) for performing a static inspection that can be performed without running the vehicle at the end of each of the plurality of zones (A) to (D) , and the defect information found in this inspection A repair section (22) is installed to carry out repairs.
In the repair part (22) , while repairing a defect item that affects the subsequent process,
A composite warranty zone (60) is provided at the end of the assembly line;
Inspecting and repairing the inspection and repair items of each functional zone ,
Line tact due to time variation of inspection and repair between the line / transmission equipment zone (20) and the interior zone (30) and between the lower equipment zone (40) and the exterior zone (50). Provided storage (2), (3) consisting of overhead conveyor to absorb,
A vehicle assembly line characterized by the above. The vehicle assembly line according to claim 1, wherein a static function is guaranteed in the combined warranty zone and the vehicle is supplied to a dynamic mechanical inspection process set next to the assembly line. Wherein the composite assurance zone, a line repair process for repairing on the line, according to claim 1 or claim 2 Symbol placement of the vehicle assembly line, characterized in that it comprises a side out repair process of repair down the line.

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