Rh-6Frh/12Frh/20Frh Series - Mitsubishi Electric RH-FRH Series Instruction Manual

5Maintenance and Inspection

(2) RH-6FRH/12FRH/20FRH series

1) The J1 axis is rotated by the J1 axis motor <1> and the reduction gears <2> in the base. Brakes are not
mounted in the J1 axis motor <1>.
2) The J2 axis is rotated by the J2 axis motor <3> and the reduction gears <4> in the No. 2 arm. Brakes are
not mounted in the J2 axis motor <3>.
3) The rotation of the J3 axis motor <8> arranged in the No.2 arm is conveyed to the ball screw via the timing
belt <9> to move the J3 axis as up and down. Non-excitation magnetic brakes are mounted in the J3 axis
motor <8>.
4) The rotation of the J4 axis motor <5> arranged in the No.2 arm is conveyed to the ball spline via the timing
belt 1 <6> and the timing belt 2 <7> to rotate the J4 axis. Brakes are not mounted in the J4 axis motor.
Fig.5-2 ： Outline structure drawing of robot arm (RH-6FRH/12FRH/20FRH series)
Maintenance and inspection procedures
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