Casing waits in housing of engine cylinder body, gear-box kind in the treatment of the spare parts, whorl aperture treatment holds very large proportion. Normally, the treatment of whorl aperture divides working procedure to undertake: ① uses twist drill drill; ② uses horny getting to pour wine cup to orifice of whorl bottom outlet; ③ machines whorl with tap. Although this kind of craft can satisfy treatment requirement, but be not worth under existence: In sheet or when small lot is produced, pour horn and tap to often use handiwork to undertake, labor strength is great, the product pledges the quantity assures hard; When large quantities of quantities are produced, although can use motor-driven to pour horny tap, but need to be finished in two working procedure of two working procedure or a working procedure, require special machine tool, raised installation cost. In view of afore-mentioned reasons, we designed a kind of tap, pour wine cup compound cutting tool, reach tap, concentration pouring wine cup a working procedure (or labour) will finish, and but first tap, wine cup pours after. Use this kind of compound cutting tool but better solve afore-mentioned problems. Graph tap, pour wine cup structure of compound cutting tool structure of 1 cutting tool and working principle tap, pour wine cup the structure of compound cutting tool is like plan institute to show. This cutting tool by machine with tap 1, special use a knife 2, bedspring 3, bedspring housing washer 4 adjust with 2 bolt 5 composition. Machine can change by standard tap with tap make, chamfer of Dan Jirong bits should be straight chamfer, so that can suit pours horny knife, can slide back and forth inside the chamfer that hold bit. Knife pouring wine cup needs to be designed technically, the number of the chamfer that hold bit of its edge number and tap is equal. Pour the direction of face of the knife before horny knife to answer as contrary as face of the knife before tap, namely if tap is right cutting tool, knife pouring wine cup should be left cutting tool, such ability assure to horny knife falls not to participate in cutting when tap cutting feed; Face of the knife after knife pouring wine cup and orifice can slide relatively, when tap rotates reversely, knife pouring wine cup begins the work namely. Knife pouring wine cup goes from tap front suit, in making as it happens of horny knife tooth blocks the chamfer holding bit in tap, rely on tap to allow the torque when bits chamfer will deliver part, the freedom in pouring horny knife to be able to allow bits chamfer in tap is slip. Bedspring housing washer is loaded from the petiole of tap, make two adjust bolt card is in two chamfer with tap corresponding petiole, support adjusts twice bolt can decide lock of bedspring housing washer the aleatoric position in petiole. Two end block bedspring respectively in the chamfer that pouring horny knife and bedspring housing washer, make 3 person become an elastomer. Tap, pour wine cup the treatment process of compound cutting tool can divide the following two phase: Tap is turning tap. Tap is turning and axial feed, undertake normal tap, after knife pouring wine cup comes up against workpiece end panel edge tap allows bits to groove moves backward and compress bedspring. In the meantime, face of the knife after knife pouring wine cup skids in working end panel, do not undertake horny cutting. Reach the designated position when tap tap, pour horny knife to be compressed to ultimate position. Tap inverts go back, knife pouring wine cup has part. Invert when tap when go back, knife pouring wine cup allows bits chamfer cornice to move by tap, begin to undertake horny cutting below the action of bedspring tension. When bedspring returns free condition, cutting pouring wine cup stops, tap continues go back arrives former. 2 tap, pour wine cup the concentration of characteristic working procedure of compound cutting tool, manufacturing efficiency is tall. This kind of compound cutting tool can complete tap, treatment pouring wine cup inside a working procedure, do not need to change a knife, manufacturing efficiency is so taller. The structure is simple, it is easy to make. This tap of compound cutting tool can consult standard tap design, just allow bits chamfer to should use straight chamfer, petiole is longer, leave have two chamfer. Knife pouring wine cup needs to be designed technically. Size pouring wine cup can be adjusted. When the whorl aperture that processes different volume, the adjustment of size pouring wine cup comes true very easily: Need loose adjustment only bolt, change the axial position of bedspring housing washer, the bounce size that changes spring namely can. Suitable scope is wide. This cutting tool is in no matter odd, in small lot production or big batch production all applicable at motor-driven tap, pour wine cup. CNC MillingCNC Machining