The invention provides a
metal dust collecting and self-cleaning device for
machining, and relates to the technical field of
machining. The problems that when a traditional
metal dust collecting device for
machining is used, a filter screen is usually adopted to intercept and filter
metal dust sucked into a device pipeline, the
metal dust easily blocks part of a screen opening of the filter screen, and air circulation in the device is affected are solved. and the device comprises a purification box, a communicating
pipe and an exhaust fan. A supporting frame is divided into three
layers, a
water storage tank is installed on the bottom layer of the supporting frame, and a filling
pipe opening is formed in the top of the
water storage tank. The bottom of a return
pipe is connected to the outer side of the
water storage tank, and the top of the return pipe is connected with a water
inlet valve; and a filter box is mounted in the middle layer of the supporting frame.
Metal dust contained in air is purified through
water flow stored in the purification box, so that the
metal dust carried in bubbles is blended into the
water flow in the purification box, the content of the
metal dust ina machining place is reduced, and the safety of the machining place is guaranteed.