JPH04256467A - Coating repairing method of car body - Google Patents

Abstract

PURPOSE:To provide a coating repairing method of a car body enabling to simply and properly repair the coating defective place in a cap member without stopping the coating line and without varying the order or a car body conveyed on an assembly line of the car body. CONSTITUTION:After the upper coating is finished, the cap member 4 is taken off from the body 3 and it is conveyed on a private conveyer line 2 and on the private conveyer line 2 it is inspected whether or not there is any coating defective place on the cap member 4, and in the case that the coating defective place is detected, the prescribed cap member 4 is conveyed on a repair line 6 provided in parallel to the prescribed conveyer line 5 and the coating defective place is repaired, then the cap member 4 is returned to the private conveyer line and in the case that the coating defective place line is not detected, the cap member 4 is attached to the body 3 without conveying the cap body to the prescribed repair line 6.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a method for repairing paint on a car body, which includes a body and cover members such as side doors and a bonnet attached to the body. It is something.

0002

[Prior Art] Conventionally, for example, Japanese Patent Application Laid-Open No. 61-16329
As shown in Publication No. 7, in the car body painting processing area, the car body, in which various lid members are attached to the body body, is conveyed by a hanger conveyor to an electrodeposition paint tank and immersed in it, and the surface of the car body is electrodeposited. After applying an undercoat by forming a paint film, etc., the vehicle body is painted by sequentially spraying an intermediate coat and a top coat.

Furthermore, as shown in Japanese Utility Model Application Publication No. 62-126273, when applying the above-mentioned spray painting, by covering the already painted part with a masking material and applying a paint of a different color to other parts. Color coding is being done.

0004

[Problem to be Solved by the Invention] When various lid members are attached to the body main body as described above and these are to be painted at the same time, it is desirable to simplify the painting equipment and perform the painting work easily. On the other hand, if a defective paint spot is detected on the lid member, the defective paint spot must be repaired while the car body conveyance line is stopped. There is a problem that the flow is stagnant. It is also conceivable to repair defective parts of the car body after it has been taken out from the painting line, but in this case, the order in which the car bodies are transported to the assembly process by the transport line changes, so-called direct delivery. There is a problem that the vehicle rate is getting worse.

[0005] In particular, when the lid members or the lid member and the body are color-coded, it is necessary to perform repairs such as repainting while masking the necessary areas again, which makes the repair work more difficult. The problem is that it becomes complicated.

The present invention has been made to solve the above-mentioned problems, and it is possible to fix the lid member without stopping the painting line or changing the order of vehicle bodies being conveyed to the vehicle body assembly line. The purpose of the present invention is to provide a method for repairing the painting of a vehicle body by which defective parts of the painting can be easily and appropriately repaired.

[0007]

[Means for Solving the Problems] The present invention is a car body painting repair method for repairing defective parts of the paint applied to a car body having a body body and a lid member attached to the body body. After painting was completed, the lid member was removed from the body and transferred to a dedicated transport line, and on this dedicated transport line, the lid member was inspected to see if there were any paint defects, and any paint defects were detected. If the lid member is transferred to a repair line installed parallel to the conveyance line to repair the defective coating, the lid member is returned to the dedicated conveyance line, and no defective coating is detected. In such a case, the lid member can be assembled to the body without being transported to the repair line.

[0008]

[Operation] According to the present invention having the above-described structure, when it is detected that there is a coating defect in the lid member being transported on the dedicated transport line, the lid member is repaired on the repair line and then the It is returned to the dedicated conveyance line, and then assembled into the main body in an assembly process.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a process diagram showing an embodiment of the method for painting and repairing a vehicle body according to the present invention. This process drawing shows a vehicle body transport line 2 that transports the vehicle body 1, a dedicated transport line 5 that transports the lid member 4 such as a side door that has been removed from the body main body 3 constituting the vehicle body 1, and the lid member 4. It is divided into a repair line 6 for repairing defective areas of painting. The vehicle body conveyance line 2 includes a spraying step 11 for spraying top coat paint etc. onto the surface of the vehicle body 1, a drying step 12 for drying the sprayed paint, a removal step 13 for removing the lid member 4 from the body body 3, and a lid removal step 13 for removing the lid member 4 from the body body 3. The process includes a body work process 14 in which the body 3 from which the member 4 has been removed is subjected to treatments such as applying a sealer and an undercoat material as necessary.

The above-mentioned dedicated conveyance line 5 carries out an inspection process 15 in which the coating condition of the lid member 4 is inspected, and a lid work process 16 in which processing such as painting black on a predetermined position of the lid member 4 is carried out.
The lid member 4, which has been painted black, is returned to the assembly process 17 of the vehicle body transport line 2. The repair line 6 consists of a polishing process 18 for polishing defective areas of coating on the lid member 4, a spraying process 19 for spraying repair paint on the polished areas, and a drying process 20 for drying the sprayed paint. The lid member 4 is returned to the lid work process 16 of the dedicated transport line 5 after repairing the defective coating portion.

Further, as shown in FIG. 2, the dedicated transport line 5 is composed of a side door transport section 51, a back door transport section 52, a bonnet transport section 53, and a fender transport section 54. The lid member 4 consisting of a back door and the like is individually transported for each part. Furthermore, the lid member 4 repaired in the repair line 5 is returned to each of the corresponding transport sections 51 to 54 for each part.

Vehicle body transfer line 2 configured as described above
In the removal step 13, after removing the lid member 4 from the body main body 3 and transferring it to the dedicated conveyance line 5,
This lid member 4 is inspected in an inspection step 15 to see if there are any defective areas in the coating. In the inspection step 15, if it is detected that the lid member 4 has a coating defect, the lid member 4 is transferred to the repair line 6, and the polishing step 18, the spraying step 19, and the drying step 20 are carried out. Repairs will be carried out by polishing and repainting defective areas. In addition, if no paint defects are detected on the lid member 4, the lid member 4 is moved to the repair line 4.
The lid member 4 is transferred to the assembly process 17 of the vehicle body conveyance line 2 through the lid work process 16 without being transferred to the body body 3, and the lid member 4 is assembled to the body main body 3 in this assembly process 17.

As described above, a dedicated transport line 5 for transporting the lid member 4 is provided in parallel with the car body transport line 2 for transporting the vehicle body 1, and the above-mentioned spraying step 11 and drying step 12 are carried out.
After finishing the top coat of the vehicle body 1 consisting of the following, the lid member 4 removed from the body main body 3 is transferred to the dedicated conveyance line 5, and the lid member 4 is inspected to see if there are any defective areas in the coating. , the above-mentioned inspection can be carried out easily and accurately without being obstructed by the above-mentioned body main body 3.

A repair line 6 is provided in parallel with the vehicle body transport line 2 and the dedicated transport line 5, and when it is detected in the inspection step 15 that the lid member 4 has a coating defect, the lid member 4 is repaired. is transferred from the dedicated transport line 5 to the repair line 6, and the defective areas of the cover member 4 are repaired on this repair line 6. Therefore, the vehicle body transport line 2 may be stopped or The defective paint spots can be easily and properly repaired without having to take out the entire vehicle body 1 and transport it to the painting department again. Further, since the repair line 6 is provided independently from the vehicle body transfer line 2 and the dedicated transfer line 5, a wide working space can be secured on the repair line 6. Therefore, when repairing defective parts of the lid member 4 that have been painted in predetermined colors, it is possible to easily cover the parts of different colors with a masking material.

[0015] Also, a lid member 4 consisting of the above-mentioned side door
If there are multiple paint defects on only some of them, only those with paint defects are transferred from the dedicated transport line 5 to the repair line 6 for repair. By performing the repair of the lid member 4 in step 6 in parallel with the black painting of the other lid members 4 on the dedicated transport line 5, the defective areas in the painting can be repaired without stopping the flow of each line. Not only can repairs be carried out efficiently, but also the lid member 4 that has been repaired can be promptly returned to the dedicated transport line 5.

[0016] At a predetermined stage in the painting process for the vehicle body 1, the floor panel and dash panel are removed from the body body 3 and transferred to a dedicated transport line, and this dedicated transport line inspects defective areas in the paint and performs outfitting. You may also perform some work.

[0017]

[Effects of the Invention] As explained above, the present invention removes a lid member such as a side door from a body main body and transfers it to a dedicated conveyance line to detect defective coating areas, and detects defective coating areas. The lid parts were transferred to the repair line to repair the defective parts of the paint.
The advantage of this method is that it is possible to easily and properly carry out the detection and repair work of the defective parts of the paint without stagnation of the flow of the car body transport line that transports the body body or reducing the straight running rate of the car body. be.

[Brief explanation of the drawing]

FIG. 1 is a process diagram showing an embodiment of the vehicle body painting repair method of the present invention.

FIG. 2 is an explanatory diagram showing a specific configuration of a dedicated transport line.

[Explanation of symbols]

1 Vehicle body 2 Vehicle body transfer line 3　Body itself 4 Lid member 5 Dedicated conveyance line 6 Repair line

Claims (1)

[Claims] Claim 1: A car body painting repair method for repairing defective parts of the paint applied to a car body, which has a body body and a lid member attached to the body body, the method comprising: repairing defective parts of the paint applied to the car body, which includes a body body and a lid member attached to the body body, the method comprising: The parts are removed and transferred to a dedicated transport line, and on this dedicated transport line, the cover member is inspected to see if there are any paint defects.If any paint defects are detected, the parts are transferred to the transport line. After the lid member is transferred to the repair line arranged in parallel to repair the defective coating, the lid member is returned to the dedicated transport line, and if no defective coating is detected,
A method for repairing painting a car body, characterized in that the cover member is assembled to the body without being transferred to the repair line.