Maintenance apparatus of robot and maintenance method of robot

Patent metadata

Field	Value
Publication number	US-11331817-B2
Application number	US-202016795976-A
Country	US
Kind code	B2
Filing date	Feb 20, 2020
Priority date	Apr 24, 2019
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

A maintenance apparatus of a robot includes a pair of parallel rails removably installed on opposite sides in a predetermined direction to a robot, and a number of sliders, at least one of the number of sliders is attached to each of the pair of rails, and each of the sliders is configured to support an arm part or a reducer of the robot, and move the supported arm part or reducer along the rails.

First claim

The invention claimed is:

1. A maintenance apparatus of a robot, comprising:
a pair of parallel rails removably installed on opposite sides in a predetermined direction to the robot, and
a plurality of sliders, wherein at least one slider is attached to each of the pair of rails,
each of the sliders is configured to support an arm part or a reducer of the robot, and each of the sliders are configured to move the supported arm part or reducer along the rails,
the pair of rails are removably attached to a base part of the robot,
the maintenance apparatus of the robot further comprises a pair of rail fixing members to which lower end portions of the pair of rails are fixed,
each of the rails is fixed to the base part via the rail fixing member,
a female screw hole extending through each of the rail fixing members in an up-down direction is provided in a portion of each of the rail fixing members on a side opposite to the base part, and
an adjustment member is screwed into the female screw hole, and a lower end of the adjustment member is in contact with the base part or an installation surface on which the base part is installed.

2. A maintenance apparatus of a robot, comprising:
a pair of parallel rails removably installed on opposite sides in a predetermined direction to the robot, and
a plurality of sliders, wherein at least one of the plurality of sliders is attached to each of the pair of rails,
each of the sliders is configured to support an arm part or a reducer of the robot, and each of the sliders are configured to move the supported arm part or reducer along the rails,
the maintenance apparatus of the robot further comprises:
a plurality of jacks supported by the plurality of sliders, respectively, wherein the plurality of jacks jack up the arm part or the reducer; and
a robot side member fixed to the arm part of the robot,

a lower end of each of the jacks is supported by the slider, and an upper end of each of the jacks is fixed to the robot side member,
an attachment hole to fix the upper end of the jack is provided in the robot side member, and
the attachment hole is an elongated hole that is elongated in the predetermined direction.

3. A maintenance apparatus of a robot, comprising:
a pair of parallel rails removably installed on opposite sides in a predetermined direction to the robot, and
a plurality of sliders, wherein at least one of the plurality of sliders is attached to each of the pair of rails,
each of the sliders is configured to support an arm part or a reducer of the robot, and each of the sliders are configured to move the supported arm part or reducer along the rails,
the maintenance apparatus of the robot further comprises:
a plurality of jacks supported by the plurality of sliders, respectively, wherein the plurality of jacks jack up the arm part or the reducer; and
a robot side member fixed to the arm part of the robot,

a lower end of each of the jacks is supported by the slider, and an upper end of each of the jacks is fixed to the robot side member,
the maintenance apparatus of the robot further comprises:
a plurality of pillar members attached to the plurality of sliders, respectively, after the arm part is jacked up by the plurality of jacks, and
a lower end of each of the pillar members is attached to the slider, and an upper end of each of the pillar members is attached to the robot side member.

4. The maintenance apparatus of the robot according to claim 3 , wherein each of the pillar members includes an adjuster to change a height of the robot side member to the slider.

5. The maintenance apparatus of the robot according to claim 1 , wherein each of the plurality of rails comprises two sliders.

6. The maintenance apparatus of the robot according to claim 2 , wherein each of the plurality of rails comprises two sliders, and
the arm part is jacked up by the plurality of jacks in a state where the two sliders attached to one rail of the pair of rails are away from each other in a longitudinal direction of the rail.

7. The maintenance apparatus of the robot according to claim 1 , further comprising:
a brake that is provided in each of the plurality of sliders and that regulates movement of the slider to the rail.

8. The maintenance apparatus of the robot according to claim 1 , further comprising:
a frame supported by a pair of the plurality of sliders that are attached to each of the pair of rails, and
a suspension mechanism suspended from an upper end portion of the frame, wherein the suspension mechanism is configured to suspend the reducer.

Assignees

• Fanuc Corp

Inventors

• Satou Shunsuke

Classifications

• B25J19/0066 Primary

  Means or methods for maintaining or repairing manipulators · CPC title

• B66F3/24

  fluid-pressure operated (water-pressure machines F03B; hydraulic gearings F16H; cylinders, pistons F16J; fluid-pressure servomotors F15B) · CPC title

• B25J5/02

  travelling along a guideway · CPC title