Conveying system
First Claim
1. A conveying system comprising:
- a robot that includes an arm unit formed of a hand and a plurality of arms connected rotatably with respect to one another, and a base unit, a first arm of the plurality of arms being connected on a rear end side thereof to the base unit rotatably about a rotation axis and the hand being rotatably connected to a second arm of the plurality of arms on a front end side of the second arm; and
a controller configured to control a motion of the robot, the controller being further configured to;
perform posture selection to select one of the plurality of standby postures,generate a trajectory from a current posture of the robot to the selected standby posture utilizing a first coordinate system,switch, by a switching unit, from the first coordinate system to a second coordinate system,generate a trajectory from the standby posture to the target posture utilizing the second coordinate system,wherein the first coordinate system is one of a rectangular coordinate system and a cylindrical coordinate system, and the second coordinate system is the other of the rectangular coordinate system and the cylindrical coordinate system.
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Accused Products
Abstract
A conveying system according to an embodiment includes a robot and a controller. The controller includes a switching unit. The robot includes an arm unit formed of a hand and a plurality of arms connected rotatably with respect to one another, and a base unit. An arm on a rear end side is connected to the base unit rotatably about a rotation axis, and the hand is rotatably connected to an arm on a front end side. The switching unit switches cylindrical coordinate control for controlling the arm unit such that a trajectory of the hand overlaps with any one of lines radiating from the rotation axis and rectangular coordinate control for controlling the arm unit such that the trajectory of the hand overlaps with none of the lines at a predetermined timing.
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Citations
22 Claims
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1. A conveying system comprising:
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a robot that includes an arm unit formed of a hand and a plurality of arms connected rotatably with respect to one another, and a base unit, a first arm of the plurality of arms being connected on a rear end side thereof to the base unit rotatably about a rotation axis and the hand being rotatably connected to a second arm of the plurality of arms on a front end side of the second arm; and a controller configured to control a motion of the robot, the controller being further configured to; perform posture selection to select one of the plurality of standby postures, generate a trajectory from a current posture of the robot to the selected standby posture utilizing a first coordinate system, switch, by a switching unit, from the first coordinate system to a second coordinate system, generate a trajectory from the standby posture to the target posture utilizing the second coordinate system, wherein the first coordinate system is one of a rectangular coordinate system and a cylindrical coordinate system, and the second coordinate system is the other of the rectangular coordinate system and the cylindrical coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A conveying system comprising:
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a robot that includes an arm unit formed of a hand and a plurality of arms connected rotatably with respect to one another, and a base unit, a first arm of the plurality of arms being connected on a rear end side thereof to the base unit rotatably about a rotation axis and the hand being rotatably connected to a second arm of the plurality of arms on a front end side of the second arm; and control means for controlling a motion of the robot, the control means being configured to; determine whether a plurality of standby postures exist, perform posture selection to select one of the plurality of standby postures, generate a trajectory from a current posture of the robot to the selected standby posture utilizing a first coordinate system, switch, by a switching unit, from the first coordinate system to a second coordinate system, generate a trajectory from the standby posture to the target posture utilizing the second coordinate system, wherein the first coordinate system is one of a rectangular coordinate system and a cylindrical coordinate system, and the second coordinate system is the other of the rectangular coordinate system and the cylindrical coordinate system.
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Specification