LUBRICANT DISCHARGE STRUCTURE IN ROBOT, MACHINE TOOL OR INJECTION MOLDING MACHINE

PROBLEM TO BE SOLVED: To provide a lubricant discharge structure facilitating after-treatment after replacement in replacing a lubricant. SOLUTION: A reduction gear 4 provided between a base 1 and an arm 2 of a robot is shown as an example of a sealed lubricated part. A tube 13 is mounted to a lubricant discharge port 8 of the sealed lubricated part (reduction gear 4), and its tip is closed with a plug and enclosed in a storage part 10. When replacing the lubricant, the tube 13 is extended, and the plug is removed to place the tip of the tube 13 to face a waste oil recovery container 31. A lubricant (grease) is injected and supplied into the reduction gear 4 by a grease gun 30. The old lubricant is recovered into the waste oil recovery container 31. When the color of the discharged lubricant changes into the color of the new lubricant, supply is stopped, and the tube is plugged and enclosed in the storage part 10. The discharged lubricant is recovered into the waste oil recovery container 31, and after-treatment after replacing the lubricant is easy without soiling a floor face, the arm and other members. COPYRIGHT: (C)2005,JPO&NCIPI