Outside the superfinishing of the aperture inside canister workpiece

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In system of hydraulic pressure of Css" Type=text/css Rel=stylesheet> , often have similar outside the workpiece of the canister, it is used arise and increase pressure, make sure hydraulic pressure system works normally. The aperture inside the canister should make sure high accuracy, low surface roughness and cylinder are spent outside wait for a requirement. If press groovy craft treatment, namely the aperture inside thick car -- fine bore hole -- manual and abrade aperture, strength of labor of this kind of method is great, manufacturing efficiency is low, unsuited treatment is bigger diametical aperture. Be aimed at this kind of current situation, we wove outside canister craft, aperture uses superfinishing inside, make the product accorded with design technology requirement. Graph 11.

Join lever 2.

3.

6 horn thick nut 4.

6.

Press annulus 5.

Columnar bedspring 7.

Cylinder is sold 8.

Fixed annulus 9.

Bring guide-post bushing 10.

Fixed lid 11.

Columnar head bolt 12.

Guide 13.

Oilstone 14.

Oilstone is worn 15.

Wear body 16.

Taper slippery lever 17.

Lining pursues 2 exceed head of essence of life if workpiece of 1 workpiece appearance pursues 1 is shown, material is 5 forge aluminous LD5, 380MPa of ≥ of B of heat treatment σ . Treatment of the aperture inside the requirement achieves Ø200H7, surface roughness Ra0.

2, cylinder is spent 0.

05. 2 exceed structure of head of essence of life to if the graph is shown 2 times,exceed structure of head of essence of life, material is quench hardness bakelite of the 45 steel of 40 ～ 45HRC, cloth that reach clip. 3 exceed superfinishing of principle of job of essence of life is the oilstone that spends with granule undertake to workpiece surface with inferior pressure and cutting speed light makes treatment, is there: of 3 kinds of motions in treatment? ぜ  retreats  of  of shake of  of large of exorcise   to divide  of Xi of collect of  of Kui of  of fade of river of  of large of  of Cuo tadpole  asinine evil spirit orders food container of 3 ご of   commonplace? level: The oilstone when superfinishing of puissant cutting phase wear bead fine, pressure is little, workpiece and oilstone the lubricating oil between is easy form oily film, but in the begining, because workpiece surface is rough, pressure of area of unit of summit of a few protruding is very great, destroyed oily film, reason cutting action is strong. Normal cutting phase is ground when peak of a few protruding after making the same score, osculatory area increases, unit area pressure is reduced, cause cutting effect abate and enter normal cutting phase. Faint cutting phase increases gradually as osculatory area, unit area pressure is less, cutting action is faint, petty cutting forms oxide built-in oilstone in space, consequently oilstone produce slick surface, have attrition polish effect and make workpiece surface polish. Stop cutting phases work automatically to grind after making the same score, unit pressure is very little, workpiece and oilstone between form oily film again, contact no longer, reason cutting action stops. Aperture of thick car of 4 treatment process -- fine bore hole -- exceed essence of life to grind inside Kong Xian is good workpiece appearance treatment, stay after thick car of the aperture inside Ø200H7, fine boring 0.

03 ～ 0.

06mm surplus finish machining, surface roughness is Ra0.

8 ～ 0.

4. Work is little upright external diameter is placed on 3 ungual chuck with line suit, with dial gauge the round jumpy quantity <0 outside corrective workpiece.

05mm. lever of join of head exceeding essence of life outside whorl comes back with the whorl inside machine tool exceeding essence of life close. Main shaft of bed of a favourable turn coming back, workpiece turns subsequently, pull automatic handle to drive towards the left of head exceeding essence of life to move, bring guide-post bushing to come up against workpiece end panel to stop not to advance, oilstone in entering the hole inside workpiece down ongoing direction, the hole wall inside circumferential grinding. Screw with spanner thick nut 3, 5 press press urge columnar spring cylinder is sold 7, taper slippery lever 16 carry an oilstone on the head to wear up 14 with oilstone 13, grinding diameter limits increases, tone follows good route, towards the left of head exceeding essence of life is mobile, oilstone undertake minim cutting, crowded light, polish to workpiece with constant pressure, use polish of fine emery cloth next, pace of division of labor is operated, but Ø200H7 of the aperture inside workpiece, Ra0.

2 treatment come out. Oilstone material is carborundum, norms is 13 × 13 × 50. Exceed N=46r/min of rotate speed of main shaft of machine tool of essence of life. Oilstone amplitude A=3mm. Oilstone pressure P=15N/cm2. The cutting fluid that exceeds essence of life to use is 10 aviation hydraulic oil (80% kerosene and 20% spindle oily) . The taper slippery staff that 5 craft characteristic exceeds head of essence of life can swell big 10mm limits, because this can process volume,differ inside aperture diameter. Because this head exceeding essence of life used bedspring adjustment, it retreats discharge to come out from inside the aperture inside workpiece very convenient. 6 last words machine a method this set practical and reliable, improve work efficiency 1 times, workpiece of similar aluminium alloy can consult this law undertakes. CNC Milling CNC Machining