Method for the surface treatment of large parts, gripper of parts suitable for implementing such a method, use of said gripper and treatment cubicle

摘要

A system and method of painting parts of large dimensions that present a certain amount of flexibility that makes their shape geometrically unstable in the event of being moved. The surface of a part is moved in front of a paint spray device by an arm of a robot, while the spray device remains stationary relative to the robot and while the part is being deformed. Other elements include a gripper for gripping parts of large dimensions, the gripper being adapted to implement the method; an installation; and a booth for performing surface treatment of parts.

主权项

1. A method of painting parts that present a certain amount of flexibility causing them to be unstable in shape when moved, the parts being painted by spraying droplets or solid particles using at least one paint spray device, in which method a part having a surface for painting is moved in front of the at least one spray device with its surface for painting facing towards the at least one spray device, the method comprising the following steps:
gripping said part at an end of an arm of a robot, keeping said at least one spray device stationary relative to said robot; deforming said part by imparting a deformed configuration thereto in which its deformable portions cause said part as a whole to take up a stable shape; and moving said part relative to said at least one spray device so as to pass all of its surface for painting in front of said at least one spray device while said part is being held in the deformed configuration and while said at least one spray device remains stationary relative to said robot; wherein said part is a bumper skin having at least one overrider, said at least one overrider being side portions of said bumper skin extending substantially perpendicularly to a front face of said bumper skin, and said bumper skin being gripped via said at least one overrider and said bumper skin being “stretched” in order to stabilize its shape.