JPS627422Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to an apparatus for painting the inner part of a vehicle body during the manufacture of automobiles.

Conventionally, a robot type device has been proposed as this type of device, but it has a relatively complicated structure and is expensive.

The purpose of the present invention is to obtain a device that does not have such inconveniences. spray gun 4
a first air cylinder 5 that can move forward and backward, and a second air cylinder 7 that swings about a shaft 6 at the lower end of the cylinder 5. Both cylinders 5, 7
A first air passage 8 and a second air passage 9 connected thereto are connected to an air source 11 via a solenoid valve 10, and a flow rate regulating valve 12 is interposed in the second air passage 9.

The spray gun 4 consists of a spray nozzle 4a extending upward and a gun body 4b at its root, which is fixed to the top of a piston rod 5a extending from a first air cylinder 5 in the gun body 4b, so that it can move forward and backward accordingly. and further the gun body 4
A paint pipe 13 extending from this point is connected to a paint tank 14 on the side thereof, and is further provided with a gun lever 15 for opening and closing on the front thereof, and the lever 15 hits a stopper 16 in front of it and is pushed to the open position. I made it so that Furthermore, the first air cylinder 5
is the second air cylinder 7 on the mounting board 5b.
The piston rod 7a is connected to the piston rod 7a, and a plurality of mounting holes 17 are prepared in the horizontal direction, so that the width of the swinging action can be freely changed by freely adjusting the mounting position. I made it. 7 in drawings
b shows the mounting board of the cylinder 7. The vehicle body 2 is placed on a trolley 2a and is movable on the transport path 1, and at a predetermined stop position, a limit switch (not shown) is activated and the electromagnetic valve 10 is switched to one direction.

In the drawings, 8a and 9a indicate air passages for return operation. To explain its operation, when the vehicle body 2 is stopped at a predetermined position and the solenoid valve 10 is switched to one side, air from the air source 11 is first introduced to the first air cylinder 5 via the first air passage 8. As a result, the spray gun 4 moves upward and the gun lever 1 is moved at a predetermined upward movement position.
5 is activated to start spraying. Next, the air from the air source 11 is guided to the second air cylinder 7 with some delay by the flow rate regulating valve 12, and thus, as the piston rod 7a moves forward, the first air cylinder 5
is oscillated about axis 6. That is, the cylinder 5 is swung from one tilted position to the other tilted position together with the spray gun 4, and the opposing inner fender inner part 3 is spray-painted along this direction. Next, according to a predetermined oscillation, a limit switch (not shown) is actuated to switch the solenoid valve 10 to the other direction, and thus both cylinders 5, 7 return to their initial positions and are ready for the next operation.

In this way, when using the present invention, spray gun 4
It is possible to obtain a prescribed spray coating on the facing inner part 3 of the fender, and its configuration is as follows: the first air cylinder 5
It is designed to be operated sequentially by combining the air cylinder and the second air cylinder 7, and has the advantage of being relatively simple and inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the device of the present invention, and FIG. 2 is a front view of the main parts thereof. DESCRIPTION OF SYMBOLS 1...Transportation path, 2...Car body, 3...Fender inner part, 4...Spray gun, 5...First air cylinder, 6...Shaft, 7...Second air cylinder,
8, 9...First and second air passages, 10...Solenoid valve,
11...Air source, 12...Flow rate adjustment valve.

Claims (1)

[Scope of utility model registration request] A first air cylinder 5 having a spray gun 4 which is movable forward and backward, and a first air cylinder 5 facing the inner part 3 of the vehicle body 2 which is conveyed along the conveyance path 1 and stopped at a predetermined position; axis 6
The cylinders 5 and 7 are connected to an air source 11 via a solenoid valve 10 in a first air passage 8 and a second air passage 9 connected thereto. This is a coating device for the inner part of a vehicle, which is connected to the second air passage 9 and has a flow rate regulating valve 12 interposed in the second air passage 9.