[4A] 这张齿轮图纸的技术说明，你能看出哪里需要完善？

十年一梦

大家讨论一下有什么需要完善之处。

3 v. Y9 l2 Q  a; Q6 X: O* A% }NOTES:
1. MATERIAL: ALLOY STEEL 9310H-NORMALIZED & TEMPERED TP HRc 32-40
(AIR CRAFT QUALITY FORGING).
2. CENTERS ARE MANDATORY ON BOTH ENDS OF SHAFT. ALL DIAMETERS MUST
4 Q6 |! q; N4 e! U2 H' @7 nBE MACHINED USING THESE CENTERS AND -A- & -B- DIAMETERS MUST BE
CONCENTRIC TO THESE CENTERS WITHIN 0.005 TIR.
5 K* b( u- {( N3. DYNAMICALLY BALANCE WITHING 0.26 OZ-IN AT PLANES INDICATED.
INSTALL HALF-KEY IN THE KEYWAY DURING BALANCING.
. ?5 |, r5 T. ^0 z* r9 f4. PROTECT THESE SURFACES FROM SCRATCHES AND TOOL MARKS.
; C5 \0 q8 d, A5. WHILE HOBBING LEAVE .29-.30 GRINDING STOCK TO FINISH THE GEAR.
6. CASE CARBURISE AREA MARKED (**) AND HARDEN TO RC 58-64. FINISHED
CASE DEPTH TO BE RC 50 AT 0.4-0.6 DEEP. REMAINDER TO BE RC 32-40.
, ^' f7 Z- b- d. Y8 n4 n# v4 P7. GRIND THE TEETH PER GEAR DATA AFTER HARDENING.
  v( O- J" F) m4 t$ R8. DO NOT GRIND ROOT OF GEAR TOOTH. USE PROTUBERANT HOB.
! Z9 M  l3 s0 f& E" A0 h9 o  c, k9. ALL FILLET RADII TO BE CAREFULLY BLENDED, POLISHED AND FREE OF
TOOL MARKS.
; N- p& [2 S# q9 ^+ Q- s0 e1 i10.UNLESS OTHERWISE SPECIFIED, CONCENTRICITY, SQUARENESS &
PARALLELISM TO BE WITHIN 0.254 TIR
11.GEAR ACCURACY DATA TO BE DETERMINED FROM DATUM -A- & -B- (SHAFT).
) y) K/ B8 v, d; y' _" x12.MAGNETIC PARTICLE TEST AND INSTPECT.
  ]  G- c9 Y0 {7 z' _% }13.AFTER FINAL GRINDING, BLEND ALL SHARP EDGES, REMOVE ALL BURRS.
14.BURNISH MARKED AREA WITH (*).
1 q" i; F& W1 H4 |

机械神话

希望看到这张图，机械图纸是图文并存的，不可分离。

itwotwo

这是你自己出图纸给鬼佬加工的？
1. MATERIAL: ALLOY STEEL 9310H-NORMALIZED & TEMPERED TP HRc 32-40.(AIR CRAFT QUALITY FORGING).
/ i2 ]/ I* y8 A0 s! q6 _6 H材质应写入材质栏，这里只要写热处理方式和最终硬度
2. CENTERS ARE MANDATORY ON BOTH ENDS OF SHAFT. ALL DIAMETERS MUST BE MACHINED USING THESE CENTERS AND -A- & -B- DIAMETERS MUST BE CONCENTRIC TO THESE CENTERS WITHIN 0.005 TIR.
$ c- C& U8 [2 B$ i- F这里的轴可能用axis比较合适，因为这根轴线不是实际存在的东西，同轴度本身就是个跳动值所以不用TIR。更应该直接标在图上。
3.DYNAMICALLY BALANCE WITHING 0.26 OZ-IN AT PLANES INDICATED INSTALL HALF-KEY IN THE KEYWAY DURING BALANCING.
半键连接？动平衡因该在整根轴带齿轮的装配体完成后整体做的，把这个要求写在这里应该要REF一个装配图要求。
4. PROTECT THESE SURFACES FROM SCRATCHES AND TOOL MARKS.
保护刮伤正常，保护刀痕不正常。刀痕都是加工出来的，不存在保护就会消失。
5. WHILE HOBBING LEAVE .29-.30 GRINDING STOCK TO FINISH THE GEAR.
？这是客户对供应商的产品需求吗？怎么看起来像打工做工艺分析的？
6. CASE CARBURISE AREA MARKED (**) AND HARDEN TO RC 58-64. FINISHED CASE DEPTH TO BE RC 50 AT 0.4-0.6 DEEP. REMAINDER TO BE RC 32-40
7. GRIND THE TEETH PER GEAR DATA AFTER HARDENING
8. DO NOT GRIND ROOT OF GEAR TOOTH. USE PROTUBERANT HOB.
$ |+ [+ l/ `9 e9 r. w+ b5 X& |3 e这是不是滚压齿底的意思？用roll
- n+ x$ c0 Y% M; ], Z6 \( o8 D& T9. ALL FILLET RADII TO BE CAREFULLY BLENDED, POLISHED AND FREE OF TOOL MARKS.
倒角处订个1.6的光洁度就行
10.UNLESS OTHERWISE SPECIFIED, CONCENTRICITY, SQUARENESS & PARALLELISM TO BE WITHIN 0.254 TIR
' ]. n0 Y! {& G. D- K8 \" P5 @同轴度，垂直度，平行度都要有参照标准的，哪有可能没有specified啊？而且本身这3个值本身就是TIR，不需要说明
12.MAGNETIC PARTICLE TEST AND INSTPECT.
探伤之后要说哪些区域有伤可接受或者全部不接受
3 X: W; x" j% {  W% M0 U) V" n+ e13.AFTER FINAL GRINDING, BLEND ALL SHARP EDGES, REMOVE ALL BURRS.
4 S0 c9 b* H. m/ @( Y我通常会用Break all burr. Sharp edge本身在机械零件里不是缺陷，该有的地方是你设计成它有。要是日用品就不能存在sharp edge。
9 l7 M- }7 |2 }14.BURNISH MARKED AREA WITH (*).
; C, i# g, |7 r* \
老兄的东西每次看都有新发现。但是如果是一个齿轮的note，好像该有的东西全部没有：
top circle
root circle
% t$ o& e( b! m( T, maddendum
( t. l1 d, F$ N. F0 {3 A9 x. Odedendum
$ F) z8 o" r2 {tooth height
) V4 d9 J/ T" E3 H8 ]* a! {pitch distance
: J3 x; Y+ `& ?6 m& Z* b) B这些都应该有上下公差或者标准值
5 l' I* a0 ?. A' f; n+ n5 }6 Tpresure angle应该要指出

- X0 v, L' f5 K" b

qdtruck

没有图纸怎么分析啊？楼上有图纸了？

supperslz

无图无真相另，另外还要说一下功用。

271211310

你需要的是真正的高手

宇宙立方

爱显摆也是人类原罪之一

湘中人

无图无真相！！

云飘映月

高手啊，三楼

混日子

楼主你这应该是单个零件的技术要求吧？我觉得第三条动平衡应该去掉，单个零件的在这没什么用；第五条磨削余量没必要写在这个里面吧，毕竟是工艺要求；另外，你要求表面刀纹看不出，那就直接定个粗糙度Ra1.6以下，这个可去参考粗糙度标准样块；第十条未注同心度0.254你有和第三条校核没？单位是英制还是公制？有必要到小数点后三位？还有最后那条不太清楚你要干什么。