Lubricating device of feed-off-the-arm machine

The invention discloses a lubricating device of a feed-off-the-arm machine. The lubricating device of the feed-off-the-arm machine can correspondingly adjust the amount of lubricating oil according toworking conditions. According to the lubricating device of the feed-off-the-arm machine, oil channels which are used for the lubricating oil to flow through and communicate with one another are formed in an upper shaft, a needle bar crank, a crank shaft, a needle bar connecting rod and a needle bar connecting column of the lubricating device; the lubricating device of the feed-off-the-arm machinefurther comprises an oil quantity adjusting assembly; the oil quantity adjusting assembly comprises an oil quantity adjusting pin and an eccentric adjusting piece, the oil quantity adjusting pin is inserted in the upper shaft, an inner hole which communicates with the oil channels are formed in the inner end of the oil quantity adjusting pin, and is provided with an oil inlet and an oil outlet; and the eccentric adjusting