塑料注射模具推板导柱的设计与校核

:20091220:(1966-),,,,.(,115000):,..,,,,.,.:;;;;;:TQ320166:A:1008-5688(2010)01-0016-05,.,,.,,.,(),,.1.,,1,.(),Hba,:ab.,H7Pf7,(),GBT180013-19983:A6es=-515D0141,ad[1].[d],[a],[d][a]cm,esm,Dmm,:|es|=[a]104,D=10[d],[a]=51510-4100141[d]0141=51510-3159[d]0141(1)1,1(a),,2[2].:12120103JournalofLiaoningTeachersCollegeVol112No11Mar12010x=Px2P(2EJ)(2):x();P()(N);x(cm);E,,E211107MPa;J(cm4),J=d4P64(3):d(cm).,4,,2,,,P=QP2(4):Q(N).(2),xx,,.,(,,),=Pl2P(2EJ)=Ql2P(4EJ)(5):();Q(N);l(cm).(3)(5),=16Ql2P(Ed4)(6)1(a)b=Htan(7):H(cm);bH(cm).tan,(7)b=H(8)(6)(8),b=16HQl2P(Ed4)(9)ab,a16HQl2P(Ed4)(10)(10)d[16HQl2P(Ea)]1P4(11)(11),.Ql,E211107MPa.H7Pf7,(1)(11),[d]0114(HQl2)1P4141(12)2,1(b),.:(1),3[3].C1,H,D1.,C1yC1=-P(l-x)x6EJl[l2-x2-(l-x)2]yC1=-P6EJl(2x4-4lx3+2l2x2)(13)17,D1yD1=-P(l-x)6EJlll-x[(x+H)-x]3+[l2-(l-x)2](x+H)-(x+H)3yD1=-P6EJl[2x4+4(H-l)x3+(2l2-6lH+3H2)x2+(2l2H-3lH2+H3)x](14)D1C1yC1-D1,yC1-D1=yC1-yD1yC1-D1=-P6EJl[4Hx3+(3H2-6lH)x2+(2l2H-3lH2+H3)x](15)z=4Hx3+(3H2-6lH)x2+(2l2H-3lH2+H3)x(16)z=0,z().PP6EJl0,yC1-D1().z=12Hx2+2(3H2-6lH)x+(2l2-3lH2+H3)=0x1=6l-3H+12l2-3H212x2=6l-3H-12l2-3H212():x1=6l-3H+12l2-3H212l2x1,x,x1.():x2=6l-3H-12l2-3H212l2x2,.x2z.zz=24Hx+2(3H2-6lH)(17)x2(17),z=-212l2-3H20,zx2zmax,yC1-D1x2,y(C1-D1)max=Pzmax6EJl(18)(4)(18)y(C1-D1)max=Qzmax12EJl(19):zmaxx2(16).(2),4.C2,H,D2.,C2D2,..b1820101a(ab)(19)aQzmax12EJl(20)(3)(20),d416Qzmax3Ela(21)d(16Qzmax3Ela)14(22)(22).,da,.H7Pf7,(1)(22),[d]0110914(Qzmaxl)141410111(Qzmaxl)14141(23)3,,.5,.5(a),5(b).,()l1.5,f,AfB(,),B,,.6,.,BfB=P1l313EJ1(24):fBB(cm);P1B(N);l1B(cm);J1(cm4);:(1),.,f=Ql36EJ(25)fB=f,P1l313EJ1=Ql36EJ19P1=Ql3J12l31J(26),BB=P1l212EJ1(27)(26)(27),B=Ql34El1J(28)(3)(28)B=16Ql3El1[d]4(29):BB().H1aB,aB=H1tanB(30)B,tanBB,(30)aBH1B=16Ql3H1/El1[d]4(31):H1(cm);aBH1(cm).a1,aBa1,.aBa1,.:a1=16Ql3H1/El1[d]4[d]=16Ql3H1El1a114(32):[d].(2),.,,x=lP2-HP2,,,,f=(lP2+HP2)(lP2-HP2)QP26EJl[l2-(lP2-HP2)2-(lP2+HP2)2]f=Q(l2-H2)296EJl(33)fB=f,P1l313EJ1=Q(l2-H2)296EJlP1=Q(l2-H2)2J132ll31J(34),BB=P1l212EJ1=Q(l2-H2)264Ell1J(35)(3)(35),B=Q(l2-H2)2Ell1[d]3(36)aBH1B=Q(l2-H2)2H1Ell1[d]4(37)(88)2020101().,,.,,.,.,,,,.312,..:;;.:,;;,;;.:;,;.:IP.,.,,.313,.,,,BPSASPSQL..(,)(20)aBa1,.aBa1,.:a1=Q(l2-H2)2H1Ell1[d]4,[d]=Q(l2-H2)2H1Ell1a114(38):[d].4,.,H7Pf7,()es=-515D0141.,(12)(23)[d].[d]es,esa.[d]a1.[d]1,a,a(11)(22),d,cm,10,mm,2d.d2315mm,225mm.1[d]a:mm[d]1018183030505080a010160102001025010302:mmd1216202532405063:[1],.[M].:,2005.[2].[M].:,2000.[3],,.[M].:,2008.(,)8820101