The treatment of sleeve of high accuracy of Bao Bishen aperture and measure

01 in. This date is integral structure, step aperture is deep aperture, 900mm of the deepest Kong Jin, grow diameter comparing to be close to 13mm. When deep Kong Qie is cut, oscillatory, make knife, platoon bits difficulty, not easy come loose the phenomenon such as heat makes treatment difficulty greater, and measure deep aperture, deep aperture and outside it is very difficult also that round coaxial is spent. Because be integral structure, wool preform uses round steel, the preform before treatment hefts 127kg, after treatment only remnant 20kg, 1/6 what be less than former weight. Many metal is dropped by cutting, be out of shape accordingly serious. 2 technology measure is aimed at above problem, when the work out machines craft, take craft step from the following respect. Use heat treatment processing for many times, eliminate treatment stress and be out of shape. Be aimed at cold hot-working alternant, scientific consideration is reasonable when staff technology arrange operation allowance, make every working procedure takes superabundant amount already, cannot surplus is too large, prevent to produce new stress to be out of shape. Deep aperture is thick semifinishing machining, after using what my company matures quite, direct reaming, kong Yi expands layer upon layerly, layer upon layer and oriented. What oriented reaming overcame center of the vibration that deep Kong Jia is versed in and aperture is deflective. Direct reaming knife is shown 2 times like the graph. Graph knife of 2 oriented reaming pursues 3 blade holder pursue 4 damping arbor pursues 5 lathe search outside the thick semifinishing machining that the circle measured the oriented reaming of law deep aperture to solve aperture only, want to make sure this date makes a success, still want to solve the fine vehicle essence of each step aperture to grind. Those who machine deep aperture is fiducial be outside round, of the circle outside treatment fiducial it is central aperture. Weave consider orifice is bigger when craft, assure the circularity of orifice not easily, because this need is set for many times,match quietly. The two end after thick car match quietly, with quietly central aperture is the circle outside accurate kibble, next semifinishing machining aperture, match after semifinishing machining aperture quietly, next half essence is ground outside round, match after effectiveness for a given period of time quietly essence of life is ground outside round, aperture of final choice vehicle, essence of life grinds aperture. The biggest question when deep Kong Che is cut is oscillatory, vibration isolation is decreased brace up the key that for Bao Bishen aperture sleeve machines. Take the following kinds of step for this staff technology. The knife handle make it that special blade holder provides deep Kong Dao is cylindrical, secure knife handle with special blade holder in lathe in procrastinate board on, the tigidity that can raise cutting tool greatly (3) seeing a picture. Use decrease brace up arbor essence Che Kongshi had something made to order technically of shock-proof structure decrease brace up arbor (4) seeing a picture. When using scroll center to wear fine vehicle aperture give out heat to prevent what the circle outside workpiece and center wear to grind, should use nicety to roll bearing center is worn. The cooling fluid when fine vehicle aperture wants sufficient, prevent workpiece to give out heat cause be out of shape newly. Reasonable of the roundlet arc radius that chooses parameter of cutting tool geometry to choose tool cutting edge angle to be 90 ° but dislocation razor blade, reduce force of back penetration of a cutting tool as far as possible. Reasonable choose cutting dosage according to cutting dosage but dislocation razor blade chooses the groovy look with bits good performance, make sure bits of platoon of deep aperture cutting is successful. Choose lathe of high accuracy numerical control to ask axial of radial of numerical control lathe is jumpy small, slideway linearity is good, aseismatic sex is good. Aperture of Fd of deep aperture grinding is to cooperate aperture, not only precision asks tall and surface roughness is low. We use the treatment of deep aperture grinder of lengthen wheelhead, assured dimension precision and surface roughness. Deep Kong Ce estimates the deep hole size that asks without tolerancepublic errand, use lengthen to measure dial gauge of lever internal diameter. Have the deep aperture measure that tolerancepublic errand asks, use lengthen to measure the gas momentum appearance of lever. The coaxial of circle and aperture spends outside measure have 3 kinds of methods: 3 coordinate measure a way; Lathe searchs outside the circle measures aperture to beat measure a way (5) seeing a picture; Linear slideway measures V form iron small head measures a way. Improve technology through trying hard for many times, treatment of sleeve of high accuracy of Bao Bishen aperture scores a success. Achieve design requirement through test-drive. CNC Milling CNC Machining