数控车床,车铝合金工件40.5mm的内孔,公差0.03mm,一批车下来内孔尺寸逐渐变大大概四十件(一个小时)变大0.01mm。我们做了系统X轴的重复定位测试,一个小时变化在0.002mm之内。另外,内孔车得不圆,椭了0.005mm到0.01mm。请大家帮忙分析!9 n+ @! k5 h. n: V8 K: i
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序号 左右位(mm) 上下位(mm)" J6 y% @+ h9 `" W1 j
1 40.508 40.5080 Q) `% M' y1 Z/ ?
2 40.508 40.513& U, u1 r3 ^4 I
3 40.511 40.513 L9 Y/ Q' D3 c9 q, j
4 40.51 40.512& I0 m! v& D' w& F# ]# u
5 40.509 40.509
7 X4 y% L% B2 |0 r3 t* o6 40.511 40.511
! y+ S8 Y* b. \% J, U7 40.511 40.511
' n1 a: n# F$ Y% R/ h8 40.51 40.512
& e9 D* |6 Q" F) u+ C9 40.51 40.5111 H P0 Z! e& N! W/ D" t! S
10 40.512 40.513
J* x# l; {; ?& P8 S! p5 F3 y6 u" n11 40.51 40.513- |6 A0 d# T2 u: k, W y
12 40.512 40.5150 O5 |: \9 C0 I9 W% ]4 P5 ?
13 40.511 40.514/ g) I y, t f" I1 C
14 40.509 40.511. K. Q5 L S3 N: B, Z) d0 I" L6 l
15 40.51 40.511* y) A2 L( r$ A" k- @" O! h a4 _; \
16 40.511 40.5131 c! L0 E2 i4 c, h
17 40.51 40.5118 |. f! x7 ?8 ^4 f
18 40.511 40.513( [9 [: m. @& F! X7 }. f% ~5 G
19 40.512 40.514: ?2 J3 {# c; J4 P
20 40.512 40.516
" x+ i6 {$ Q7 p* [- U21 40.513 40.515
! R2 p) u; g# }, p7 w! s$ t22 40.514 40.517/ l" a( a/ E2 u# Z* j) p+ l/ Q
23 40.514 40.517
3 F5 T' t8 l9 w) a* A% T0 ?' j24 40.513 40.516- C3 L0 d& F4 U" m
25 40.513 40.517- l3 p" L. Y1 g) A. c/ K
26 40.515 40.518
; A. D5 n A6 C3 N27 40.515 40.52
# J" h+ M: H X- w- K& Z28 40.516 40.521
" T, q1 G; w/ ?) Z) ~4 `' t29 40.516 40.52; B6 |: S" t2 Y8 G4 N
30 40.517 40.521
3 i; o" A" Y7 K7 n/ r/ d31 40.518 40.52+ ]* }$ q0 H5 G& c
32 40.518 40.522
& a- K4 G( ~% _6 X6 U7 n% a33 40.517 40.5195 G- x% T. ]% ~; ~; e
34 40.519 40.521
6 O0 p( {9 x1 a" D, r35 40.515 40.525
& I" F0 \5 {# b3 Z9 v36 40.52 40.52
3 X$ v7 n, v X5 }- ^/ \37 40.52 40.524
. Q2 y& {3 a8 s38 40.521 40.522- J) D8 t& M+ z3 Q
39 40.52 40.523
) O! x& f* p$ p1 E: F; Q9 q' b40 40.521 40.523 |