JPS58110341A - Maintenance of car body - Google Patents

Abstract

PURPOSE:To continuously and efficiently carry-out maintenance work by carrying-out the conveyor system operation by transferring cars in tact feed at a working-time pitch between each work section arranged in the order of processes for each car-body maintenance work. CONSTITUTION:A car is conveyed into a car washing section A, and loaded onto a carrying dolly 2 by an overhead lift 1. Said car is conveyed by the dolly 2, and after washed in an automatic car washer 3, the car is transferred to a sheet-metal section B and an substrate section C. Conveyance of the dolly 2 between each section is executed in tact feed by an automatic feeder 4, in each time which is set at a certain pitch of the work time. The car is transferred in succession by the dolly 2, to a waxing section D, painting section E, furnishing section F, shower cleaning section G, and a finishing section H. Transfer of the dolly 2 between each section is carryed-out by an automatic feeder 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for maintaining a vehicle body in which sheet metal processing and the like of a vehicle are carried out in a circulating flow process.

Conventionally, in automobile maintenance, especially sheet metal processing, each work such as sheet metal processing, base processing, masking work, painting, polishing, etc. was performed in one place, or it was moved to a specific work site according to each work. . Therefore, there are drawbacks such as requiring manpower for maintenance and requiring a considerable amount of work time.

The invention was made in view of this, and when performing car body maintenance, each work section is arranged in the order of the process of each maintenance work, and the takt time between these sections is carried out horizontally across the width of the car at the pitch of the work time. It is characterized in that it is moved by transport and maintenance of the car body is carried out using an assembly line work method.

Hereinafter, the present invention will be explained based on the illustrated fire foil example, but the illustrated example is just an example of implementing the invention, and can be applied to other areas without changing the gist.

In order to carry out maintenance such as sheet metal processing, the vehicle is first transported to the car wash section A by self-propelled vehicle or by wheel transfer, and then a designated maintenance section adjacent to this car wash section A in the width direction of the vehicle is redundant. After completing the final work on the completed vehicle, the completed section H side, which is waiting to be discharged, is used to lift a car that has been placed in the A section using a ceiling-suspended lift 1 that runs between manga sections H and A. , and transfer it onto the moving cart 2. In this section, the car is washed after it has been hoisted up using a ceiling lift or transferred to a mobile trolley. This car washing is performed by a self-excited car washing device 6 disposed in the A section. In order to prevent the purified water of the preceding vehicle from scattering to other sections, a ceiling-hanging curtain is sometimes rolled down to cover all four circumferences of the vehicle.

A sheet metal section B' is provided so as to be adjacent to section A on one side of the vehicle. This sheet metal section B is divided into a section B1 that performs the first sheet metal processing and a section B2 that performs the second finishing sheet metal processing,
Furthermore, a base section C is provided in this section B toward the vehicle side. In this section C as well, the section C1 which performs the first base treatment and the second section C1 which performs the finishing process are applied. The vehicles carried into section A are laterally supported on movable trolleys, and each trolley is moved to sections Bl-82, C1, and C2.
They are transported according to the work process. The carriage can be moved between sections manually, but in order to save labor, an automatic feeding device 4 is provided between sections A and C2 for tuft feeding at predetermined pitches and at set intervals. This is done by stretching at least one chain from section A to B2, and hooking a part of the trolley using hooks protruding from the second chain at foot pitches, so that it can be transported by the drive of the chain. However, this feeding device may be of other types. The movement of this trolley
A rail 5 or a metal plate with a flat top surface is laid on the working floor surface over the range of movement of the cart, so that the cart moves smoothly on this rail or metal plate. The above-mentioned mobile cart may be equipped with a lift when it is necessary to adjust its height according to each work, and the direction of movement is from section A to section 02 and from section A to section 02. Since this is different from the movement from C2 to section D, it is suitable to use a free ball roller or the like that does not have directionality.

Section C2 and the next maxi section D are adjacent to each other in the traveling direction of the vehicle, and a rail or steel plate 6 is laid on the floor over the range of movement so that the moving truck 1 can move from section C2 to JD. Rails 5 and 6 are in substantially orthogonal directions. A winding curtain 7 may be provided in sections C1 and C2 so as to surround the circumference of the vehicle, and all dust suction devices 12 are provided. This dust suction ff112 is also provided in the maxing section.

Painting section E is adjacent to the side of maxiing section D Lv, and this maxiing section D is adjacent to painting section E in a row in the horizontal direction, and is adjacent to installed section F1 shower cleaner; puffer section G1 completed section H'; If a rail 8 or iron plate that allows the trolley 1 to move up to section H is laid on the floor and moves automatically, the automatic transport device 4 from section A to section C2
In the same manner as above, an eye transport device 9 is provided. In each of the above sections, equipment and tools necessary for performing work such as sheet metal processing, base processing, maxing, painting, mounting and assembly, and cleaning are provided. In the shower cleaning section, a roll-up curtain 10 is provided in the same way as in the car wash or base section, and in the painting section, shutters 11 are provided to prevent paint from scattering to the maxing section D1 mounting section F adjacent to both sides of the vehicle. When moving, this shutter 11 is rolled up so that there is no problem during transportation.

The line from section A to 02 and the line from section D to H are straight lines parallel to each other, and the width between the two lines is such that the vehicle completely shifts from one line to the other line. By determining the width of each section, that is, the width of each section at two lines, it becomes possible to control the moving carriage by automatic tufting with a -pitch between multiple sections.

In addition, between the two lines, the foils, bumpers, and other parts removed in the sheet metal section B1 are stored parallel to the line, and in the installation section, the above-mentioned parts are stored so that they can be taken out and installed and assembled. Storage device 13
will be arranged.

As mentioned above, the vehicles brought into the car wash section A are transferred onto the mobile trolley using a ceiling lift, and then moved to each work section by tact or other manual methods using an assembly line method. The work is carried out one by one by the workers who are waiting or assigned to the section, and when the vehicle reaches the completed section, the prescribed maintenance is completed and the vehicle is moved to the first car wash section by cart or is lifted on a ceiling lift. It is also possible to hang the car and transport it to the car washing section after traveling the 97th time, and then take it out from there in the opposite direction to the way it was brought in. However, it is also possible to hang the car directly from the completed section using a ceiling lift and remove the mobile cart. After that, get off the car again at the same location and carry it out from section H.

The movable trolley is transferred from section H to A, and in this way, the movable trolley is sequentially circulated between each section in accordance with the assembly work to perform desired work maintenance.

In the above embodiment, the line for car washing and surface work and the line from maxiing to completion were placed parallel to each other, but it is also possible to make them into a loop. When carrying out 9-hour feed, the pitch is variable, that is, 60 to 150 to match the required work time.
In some cases, the adjustment may be made within minutes. If work is not required in a particular section, the work is not performed there, so that efficient car body maintenance can be carried out in an assembly line system.

It can also be made automatic by installing a battery drive device on the mobile cart.

According to the present invention, the vehicle whose body is to be serviced is mounted on a trolley, and the vehicle is moved laterally between each work section by the movement of the trolley, so that maintenance is carried out in assembly line work, and the trolley is Since it is circulated, car body maintenance work can be carried out continuously and efficiently, and sections that require time can be divided into two or more sections, which has the advantage of being able to be carried out without any problems during assembly line work. have

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of the invention, and FIG. 2 is a plan view of an actual flow example. A... Car washing section B... Sheet metal section C... Base section D... Marking section E... Painting section F... Equipment section G... Shower cleaning section H... Finished section ...Ceiling lift 2...Movable trolley 3...Automatic lead vehicle device 4.9...Automatic feeder device 5.6.8...Rail 7.10...Hoisting curtain 11...・Shutter 12...Dust extractor 13...Containment and storage device patent applicant Nissan Motor Sales Co., Ltd. patent applicant
Jidosha Seiki Kogyo Co., Ltd. Representative Hitoshi Hayashi
Seimei ) Figure I!

Claims (1)

[Claims] When performing car body maintenance, each work section is arranged in the order of each maintenance work process, and between these sections there is a metal car Ia.
A method for servicing an automobile body, characterized in that the body is moved laterally using a tact feeder at a pitch of working time, and the body maintenance of the automobile is carried out using an assembly line method.