Coating system including coating robot and operation robot

A coating system comprising:

• a first pair of coating robots mounted in a coating booth to coat a workpiece while the workpiece is conveyed in the coating booth in a conveyance direction substantially perpendicular to a height direction, the workpiece including a body and a first movable part movable with respect to the body;
• a second pair of coating robots;
• and
• a first operation robot disposed in the coating booth below the first pair of coating robots in the height direction, the first operation robot being movable in the coating booth in the conveyance direction and being configured to move the first movable part of the workpiece, wherein each coating robot of the first pair of coating robots and the second pair of coating robots comprises:
• a base fixed to the coating booth;
• a first axis disposed on a common line parallel to the conveyance direction such that the first axis of each coating robot of the first pair of coating robots is disposed on the common line;
• and
• a first arm turnable about the first axis, the first arm being directly pivotally connected to the base about the first axis disposed on the common line,
• wherein each coating robot of the first pair of coating robots are fixed to the coating booth horizontally adjacent to one another, a first coating robot of the first pair of coating robots having axes of rotation that are symmetrical to axes of rotation of a second coating robot of the first pair of coating robots with respect to a first plane orthogonal to the conveyance direction and extending between the first coating robot of the first pair of coating robots and the second coating robot of the first pair of coating robots, the first arm extending from the base of the first coating robot of the first pair of coating robots in a direction opposite from the first arm extending from the base of the second coating robot of the first pair of coating robots in order to increase a density of the first pair of coating robots within the coating booth, the first pair of coating robots having identical distances between adjacent axes of rotation of the first coating robot of the first pair of coating robots as compared to distances between adjacent axes of rotation of the second coating robot of the first pair of coating robots,
• wherein each coating robot of the second pair of coating robots are fixed to the coating booth horizontally adjacent to one another, a first coating robot of the second pair of coating robots having axes of rotation that are symmetrical axes of rotation of a second coating robot of the second pair of coating robots with respect to the first plane orthogonal to the conveyance direction and extending between the first coating robot of the second pair of coating robots and the second coating robot of the second pair of coating robots, the first arm extending from the base of the second coating robot of the second pair of coating robots in a direction opposite from the first arm extending from the base of the second coating robot of the second pair of coating robots in order to increase a density of the second pair of coating robots within the coating booth, the second pair of coating robots having identical distances between adjacent axes of rotation of the first coating robot of the second pair of coating robots as compared to distances between adjacent axes of rotation of the second coating robot of the second pair of coating robots,
• wherein the first coating robot of the first pair of coating robots and the second coating robot of the first pair of coating robots being disposed to a first side of a conveyor configured to convey the workpiece in the conveyance direction, the first coating robot of the first pair of coating robots and the second coating robot of the first pair of coating robots being fixed directly opposite to each other in the conveyance direction on the first side of the conveyor with the first plane being located directly intermediate the first coating robot of the first pair of coating robots and the second coating robot of the first pair of coating robots in the conveyance direction on the first side of the conveyor,
• wherein the first coating robot of the second pair of coating robots and the second coating robot of the second pair of coating robots being disposed to a second side of the conveyor opposite to the first side of the conveyor, the first coating robot of the second pair of coating robots and the second coating robot of the second pair of coating robots being fixed directly opposite to each other in the conveyance direction on the second side of the conveyor with the first plane being located directly intermediate the first coating robot of the second pair of coating robots and the second coating robot of the second pair of coating robots in the conveyance direction on the second side of the conveyor, and
• wherein the first pair of coating robots having axes of rotation that are symmetrical to axes of rotation of the second pair of coating robots with respect to a second plane extending vertically through the conveyor and orthogonal to the first plane, the second plane extending between the first pair of coating robots and the second pair of coating robots.