Automatic lubricating device for cam

The utility model discloses an automatic lubricating device for cams, which comprises an oil tank, an input oil pipe, a motor pump, an output oil pipe, an oil way support frame, an oil way distributor, branch oil pipes, uniformly distributed cams, a liquid level sensor and a PLC (programmable logic controller), and the input oil pipe is mounted at the upper end of the oil tank. Through cooperative use of the input oil pipe, the motor pump, the output oil pipe, the oil way distributor, the branch oil pipes and the PLC, when a cam needs to be lubricated, a worker starts the PLC, the PLC can send a corresponding instruction to the motor pump, and after the motor pump receives the instruction, the motor pump is started to work. The motor pump can pump lubricating oil from the oil tank into the output oil pipe through the input oil pipe, then the lubricating oil enters the oil way distributor along the output oil pipe, the oil way distributor guides the lubricating oil to the branch oil pipe and the next oil way d