The invention discloses a
precipitation-type
cutting fluid collecting device for a
numerical control machining center and a using method thereof. The
precipitation-type
cutting fluid collecting devicecomprises a frame body, wherein a sliding rail is arranged at the top of the frame body, a collection
pipe is arranged on the sliding rail in a matched mode, and a driving mechanism is connected withthe collection
pipe; a plurality of
precipitation tanks are arranged below the bottom of the collection
pipe side by side; the top of each precipitation tank is connected with an overflow
nozzle; a collecting tank is arranged on one side of the precipitation tanks; an ultrasonic liquid level meter is arranged on the outer wall of the bottom of the collection pipe; a plurality of detection mechanisms for detecting and identifying a position of the collection pipe are further arranged at the top of the frame body; a stop switch is further arranged at one end of the frame body, and the collection pipe automatically returns to an initial position after touching the stop switch; a
piston plate is arranged in each precipitation tank in a matched mode, and the bottom of each
piston plate is connected with a
hydraulic cylinder; and the whole device further comprises a controller. According to the device, the plurality of precipitation tanks are arranged, so that impurities in
cutting fluid can be fully precipitated, and the problem that the precipitated impurities are stirred up again by liquid stirring caused when the
cutting fluid is injected during precipitation in one tank is also avoided.