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无论是凸凹模还是型心型腔都要
- J# W7 F5 J, g* s1 j6 l$ G: S刚进行了塑料模的设计,说明书里有成型零件的一部分计算:
6 o+ k# t6 N, u1 [: `9 v该塑件精度等级为一般精度,(6级),故选取制造公差为零件公差的1/4,模具磨损系数为0.5。模具工作部分尺寸计算过程为:/ v* k( r7 h9 ?* Y. I2 {. j
A1M+δz =[(1+S)AS1-xΔ1]+δz1=[(1+2.0%)*80-1/2*0.76]+0.76/4=81.22+0.190mm
0 v% ~& j" D/ J, {. h* n A2M+δz =[(1+S)AS2-xΔ2]+δz2=[(1+2.0%)*25-1/2*0.48]+0.48/4=25.26+0.120mm) A- G+ _( B/ j" M0 }
B1M-δz =[(1+S)BS1+xΔ3]-δz3=[(1+2.0%)*72+1/2*0.76]-0.76/4=73.82-0.190mm' h7 D$ y' U0 q! F! n& N7 U7 V
B2M-δz =[(1+S)BS2+xΔ4]-δz4=[(1+2.0%)*22+1/2*0.44]-0.44/4=22.66-0.110mm
, k% j$ X! i! o+ v9 y) h; u& G B3M-δz =[(1+S)BS3+xΔ5]-δz5=[(1+2.0%)*7+1/2*0.32]-0.32/4=7.3-0.080mm
! P2 X; x4 E0 k' S2 ?6 h CM±δz =[(1+S)Cs]±δz/2=[(1+2.0%)*50]±0.28/4=51±0.07mm* K( \8 b! Z* x
上标看不出来,-δz, δz1,+0.76/4这些都是上标,1/4就是制造公差,说得乱七八糟的,你大概也懒得看了,反正一句话,理论上是要算的 |
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