JPS6115974Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a robot painting device that performs painting using a painting robot. Relates to improvements in efficiency of painting work.

In general, in a robot painting system that uses a painting robot to perform painting, the time required to transport a painted workpiece from the painting position to the unloading position, and the time required to transport an unpainted workpiece from the loading position to the painting position. During the time required to send the object to the robot, that is, the time required to replace the object to be coated, the painting robot cannot perform painting, resulting in a problem that the painting ability is reduced. For this reason, the arrangement of the transfer position of the object to be coated and the operating capacity not only have a great influence on the coating performance, but are also important factors for the work efficiency of the worker.

This invention aims to reduce the time required to replace objects to be coated, and to provide an optimal coating station to improve the efficiency of painting robots and workers who attach and detach objects to be coated. be.

Utility Model Application No. 54-155950 is already known as a device of this type, but in this case, the transfer device is placed on one side of the coating robot, and therefore, from the perspective of the coating robot, the object to be coated is Movement and stopping positions are asymmetrical.

However, due to problems with the workability and teaching of the painting robot, the object to be coated is configured to extend to the tolerance point of each transfer device in order to make the coating position of each transfer device the same. Therefore, painting robots can always paint at the same painting position, but after painting is completed, the next object to be painted is placed in the same position, so after moving the object to be painted back, The next object to be coated has to be moved, and during that movement, the coating robot has to stop, resulting in a reduction in efficiency.

In addition, the operator who attaches and detaches the object to be coated is located close to the operating range of the painting robot, which poses a risk of danger.

Furthermore, the fluid pressure cylinder that transfers the object to be coated requires a large installation space considering its operating range, and the transfer device has to be larger, leaving much room for improvement.

The present invention is a device that improves these and further improves efficiency. Hereinafter, embodiments of the present invention will be explained based on the drawings. It is something that

1 is a painting robot consisting of an arm 2 and a main body 3, and a spray gun 4 is attached to the tip of the arm 2. Reference numeral 5 denotes an object transfer device arranged in a V-shape, and each transfer device has cable cylinders 6 and 7 installed from the front end to the rear end, and rotates with the object to be coated placed on the cable cylinders 6 and 7. Object mounting tables 8 and 9 equipped with a mechanism are attached.

The workpiece mounting tables 8 and 9 are cable cylinders 6,
7, the transfer devices 14 and 15 at the front end of each transfer device are moved from the loading/unloading position 1 at the rear end.
2 and 13 along the traveling rails 10 and 11.

Further, the painting robot 1 is disposed between the object transfer devices arranged in a V shape, and the rear end of each transfer device is extended to the rear of the coating robot 1. There is.

In such a configuration, the present invention performs the following operations.

First, the object transfer device 5 arranged in a V-shape
When a worker places a workpiece on the workpiece loading platform 8 located at the loading/unloading position 12 of one of the transfer devices 5a, and presses an automatic operation start button (not shown), the drive device starts operating. Cable 6 of cable cylinder 6
a moves the object to be coated table 8, and the object to be coated stops at the fixed position 14 for painting. After confirming the stop position using a built-in transfer device 5a or a Mitsubishi switch (not shown), the coating robot operates and performs coating. Since the painting work usually involves many surfaces, when the painting of one surface is completed, the object mounting table 8 rotates and the next surface is immediately painted. In the meantime, the operator loads the uncoated workpiece onto the workpiece mounting table 9 located at the loading/unloading position 13 of the other transfer device 5b. Here, when the entire surface of the object on the object to be coated on the object to be coated is almost finished being coated, the object to be painted on the object to be pedestal 9 on which the unpainted object is placed is activated by the cable cylinder 7 of the drive device in response to a command signal from the painting robot. It is carried to the painting position 15 by the movement of the cable 7a and stands by.

At the same time that painting of the workpiece on the workpiece table 8 at the painting position 14 is completed, the arm 2 of the painting robot 1 is quickly turned toward the workpiece on the workpiece table 9, which has been selected and is waiting at the painting position 15, by a command signal from the painting robot 1, and begins painting. Therefore, there is no waiting time for the painting robot as in the conventional case, and painting work can be performed continuously.

On the other hand, while the painted object on the object mounting table 8 is being painted, the object to be coated on the object mounting table 8 is transferred to the cable cylinder 6 of the drive device by a command signal from the painting robot. The cable 6a moves and returns to the loading/unloading position 12, where the object to be coated is unloaded onto the object mounting table 8 by the same operator.

Next, the operator places the uncoated workpiece onto the workpiece mounting table 8.

At this time, if there is a masking jig, etc., remove it and reuse it.

The same operation is then repeated alternately.

As described above, the present invention provides a device for transporting objects to be coated arranged in a V-shape at a coating position where a coating robot performs painting and an operator loads and unloads objects to be coated. A painting robot is installed between the transfer devices arranged in a V-shape, and each of the transfer devices arranged in a V-shape moves back and forth between the loading/unloading position of the object to be coated and the painting position based on command signals from the painting robot. Since the system is configured to do so, the following effects can be obtained.

The waiting time for the painting robot can be reduced to almost nothing as the painting robot simply changes its direction, increasing the painting processing capacity and maximizing the ability of the painting robot.

During painting, since it has a mechanism that rotates the object to be coated at the coating position, the entire surface of the object to be coated can be coated efficiently, further improving work efficiency.

The operator can perform safe and hygienic work because the operator can be positioned at the rear, completely away from the range of motion of the robot's arm.The painting robot is installed between the transfer devices, and a cable cylinder is used as the transfer device. Therefore, the maximum range of movement can be achieved with the minimum footprint.

Since the transfer device is installed in opposition to the painting robot, each transfer device can be manufactured to be exactly the same.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an apparatus showing an embodiment of the present invention. 1... Painting robot, 2... Transfer device arranged in a V-shape, 6, 7... Cable cylinder,
8, 9...Object-to-be-coated stand.

Claims (1)

[Scope of utility model registration request] In a coating device configured such that a painting robot performs painting and a worker loads and unloads the object to be coated, a device for transferring the object to be coated is arranged in a V-shape,
A painting robot is arranged between the transfer devices arranged in a V-shape, and the rear end of the transfer device arranged in a V-shape extends to the rear of the painting robot as a loading/unloading position. A cable cylinder that can be moved between both ends of the transfer device is provided, and a workpiece mounting table equipped with a rotation mechanism is connected to the cable cylinder, and the painting robot moves between the workpiece loading/unloading position and the painting position. A robotic painting device configured to reciprocate based on command signals.