Hole milling device for cylinder sleeve of automatic production line

The utility model discloses a hole milling device for an automatic production line cylinder sleeve, and relates to the technical field of cylinder sleeve processing, the hole milling device comprises a hole milling device, the top of the hole milling device is movably connected with a support frame, and metal chips generated by hole milling are sucked into a filter box through a negative pressure fan; the first filter plate and the second filter plate of which the diameters of sieve pores are gradually reduced can be used for filtering metal chips in a multi-stage and specification manner, and the electrified electromagnet sieve is used for generating magnetism to attract smaller metal chips, so that the metal chips are prevented from escaping into the air, and the service life of the metal chips is prolonged. Tiny metal chippings are further filtered through a non-woven fabric bag wrapping the opening end of the closing-in piece, and then the device can effectively collect some tiny metal particles generated