Robot system and method for picking workpiece

Abstract

An object of the present disclosure is to provide a robot system and a method for picking a workpiece that ensure more efficient transfer of workpieces. The robot system includes a conveyor, a robot, and a controller. The conveyor is configured to convey a workpiece. The robot includes a plurality of holders configured to hold the workpiece. The controller is configured to control the robot to hold the workpiece conveyed on the conveyor and transfer the workpiece to a predetermined place using at least one holder among the plurality of holders. The controller includes a divided area setter and an allocator. The divided area setter is configured to set a plurality of divided areas on the conveyor in a width direction of the conveyor, and is configured to store the plurality of divided areas in a storage. The allocator is configured to allocate the plurality of holders respectively to the plurality of divided areas so as to hold the workpiece when the workpiece is conveyed in the plurality of divided areas.

Description

technical field [0001] The disclosed embodiments relate to robotic systems and workpiece picking methods. Background technique [0002] Conventionally, a robot system is known in which a workpiece conveyed by a conveyor or the like is held by a robot and transferred to another location. [0003] Regarding this robot system, for example, Patent Document 1 discloses a so-called multi-pickup type article handling device that simultaneously transfers a plurality of workpieces to another place using a robot provided with a plurality of holding parts for holding workpieces. . [0004] In addition, in the multi-pickup method, in many cases, the order of the holding units used is predetermined, and each holding unit sequentially holds each workpiece conveyed on the conveyor in accordance with this order. [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 08-336784 [0006] However, in the prior art described above, there is still room for further improvement in...

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Problems solved by technology

[0006] However, in the prior art described above, there is room for further improvement in efficiently transferring workpieces.

[0007] Specifically, in the above-mentioned prior art, depending on the conveyance method of the workpiece, for example, the position of the workpiece on the conveyor, etc., the operating distance of the robot for holding the workpiece may become longer, which may lead to a decrease in the conveyance efficiency of the workpiece.

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