0
1.1. Standard drawing sheets with layoutStandard drawing sheets with layout
(( GB/T 14689—1993GB/T 14689—1993 ))
Title blo...
1261
1471
1682
1982
2102
2523
630
1051
A4×5
A4×4
A4×3
A0
841
11890
A1
594 1486 1783 2080 2378
A3×3 A3×4
891
420
A2
297
A3
...
Drawing sheets without binding are area
c
Title blocks
X Y
L
B
c
c
a
L
Title blocks
B
c
a
c
Border area
Border linesSheet ...
Drawing sheets with binding area
Title blocks
X Y
L
B
e
e
e
L
Title blocks
B
e
ee
e
e
   Standard drawing sheets with layo...
Title blockTitle block (( GB/T 10609.1—1989GB/T 10609.1—1989 ))
ScaleScale (( GB/T 14690GB/T 14690 —— 19931993 ))
Originality scaleOriginality scale 1:1
Down scaleDown scale (1:1.5) 1:2 ...
Lettering (Style)Lettering (Style) (( GB/T 14691GB/T 14691—— 19931993 ))
Chinese characters shouldChinese characters shoul...
Description Line example Width Usage
Continuous thick line dd To indicate visible outlines,edgesTo indicate visible outlin...
Line stylesLine styles (( GB/T 4457.4—2002GB/T 4457.4—2002 ))
Axis line, thin
dashed dotted line
Center line, thin
dashed ...
Line stylesLine styles (( GB/T 4457.4—2002GB/T 4457.4—2002 ))
The example of center lineThe example of center line
Correct...
DimensioningDimensioning (( GB/T4458.4GB/T4458.4—— 20032003 ))
1.1. Basic rulesBasic rules
2.2. The example of dimensionTh...
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Engineering Drawing 4

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Transcript of "Engineering Drawing 4"

  1. 1. 1.1. Standard drawing sheets with layoutStandard drawing sheets with layout (( GB/T 14689—1993GB/T 14689—1993 )) Title blockTitle block (( GB/T 10609.1GB/T 10609.1——19891989 )) 3. Lettering3. Lettering (( GB/T 14691—1993GB/T 14691—1993 )) 2.2. ScaleScale (( GB/T 14690—1993GB/T 14690—1993 )) 4. Line styles4. Line styles (( GB/T 4457.4GB/T 4457.4——20022002 )) Related Provisions in National StandardsRelated Provisions in National Standards 5. Dimensioning5. Dimensioning (( GB/T 4458.4GB/T 4458.4——20032003 ))
  2. 2. 1261 1471 1682 1982 2102 2523 630 1051 A4×5 A4×4 A4×3 A0 841 11890 A1 594 1486 1783 2080 2378 A3×3 A3×4 891 420 A2 297 A3 210 A4    Standard drawing sheets with layoutStandard drawing sheets with layout (( GB/T 14689GB/T 14689——19931993 )) The code of surfaceThe code of surface B×LB×L aa cc ee A0A0 841×1189841×1189 2525 1010 2020 A1A1 594×841594×841 A2A2 420×594420×594 1010A3A3 297×420297×420 55 A4A4 210×297210×297
  3. 3. Drawing sheets without binding are area c Title blocks X Y L B c c a L Title blocks B c a c Border area Border linesSheet frame c    Standard drawing sheets with layoutStandard drawing sheets with layout (( GB/T 14689GB/T 14689——19931993 ))
  4. 4. Drawing sheets with binding area Title blocks X Y L B e e e L Title blocks B e ee e e    Standard drawing sheets with layoutStandard drawing sheets with layout (( GB/T 14689GB/T 14689——19931993 ))
  5. 5. Title blockTitle block (( GB/T 10609.1—1989GB/T 10609.1—1989 ))
  6. 6. ScaleScale (( GB/T 14690GB/T 14690 —— 19931993 )) Originality scaleOriginality scale 1:1 Down scaleDown scale (1:1.5) 1:2 (1:2.5) 1:3 (1:4) 1:5 (1:6) 1:1×10n (1:1.5×10n ) 1:2×10n (1:2.5×10n ) (1:4×10n ) 1:5×10n (1:6×10n ) EnlargedEnlarged calecale 2:1 (2.5:1) (4:1) 5:1 1×10n :1 2.5×10n :1 (4×10n :1) 5×10n :1 The size of the drawingThe size of the drawing The size of the objectThe size of the object
  7. 7. Lettering (Style)Lettering (Style) (( GB/T 14691GB/T 14691—— 19931993 )) Chinese characters shouldChinese characters should be the “Fang Song”be the “Fang Song” The font for all characters can be in italic fontThe font for all characters can be in italic font
  8. 8. Description Line example Width Usage Continuous thick line dd To indicate visible outlines,edgesTo indicate visible outlines,edges Continuous thin line d/2d/2 For fictitious outlines, dimensions, projection hatchingFor fictitious outlines, dimensions, projection hatching and leader lines, also for the outline of coincidenceand leader lines, also for the outline of coincidence section, root of threadsection, root of thread Irregular ( continuous thin ) line d/2d/2 Part sectional boundary lines or to terminate a part view,Part sectional boundary lines or to terminate a part view, and for short break lineand for short break line Continuous thin straight line with intermittent zigzag d/2d/2 To show a break on an adjacent member to which aTo show a break on an adjacent member to which a component is attachedcomponent is attached Thin dashed line d/2d/2 Hidden edges, hidden outlines. (Long line=12d,Hidden edges, hidden outlines. (Long line=12d, granularitygranularity=3d)=3d) Thick dashed line dd Shown can be made surface-treatment. (Long line=12d,Shown can be made surface-treatment. (Long line=12d, granularitygranularity=3d)=3d) Thin long dashed dotted line d/2d/2 Axis lines, symmetrical center lines, etc. (Long line=24d,Axis lines, symmetrical center lines, etc. (Long line=24d, granularity=6,granularity=6, dot=3d)=3d) Thick long dashed dotted line dd To indicate a cutting plane for sectional views. (LongTo indicate a cutting plane for sectional views. (Long line=24d,granularity=6,line=24d,granularity=6, dot=3d)=3d) Thin long dashed double dotted line d/2d/2 To indicate adjacent parts alternative and extremeTo indicate adjacent parts alternative and extreme positions of moving parts, also to indicate imaginary linepositions of moving parts, also to indicate imaginary line (Long line=24d,granularity=6,(Long line=24d,granularity=6, dot=3d)=3d) Line stylesLine styles (( GB/T 4457.4—2002GB/T 4457.4—2002 ))
  9. 9. Line stylesLine styles (( GB/T 4457.4—2002GB/T 4457.4—2002 )) Axis line, thin dashed dotted line Center line, thin dashed dotted line Visible edges and outlines, continuous thick line Dimension line, continuous thin line Extension line, continuous thin line Boundary between view and section view, continuous thin irregular line The broken part, boundary, continuous thin straight line with intermittent zigzags Imaginary line,long dashed double dotted thin line Hidden edges, thin dashed line The example of drawing lines manipulate
  10. 10. Line stylesLine styles (( GB/T 4457.4—2002GB/T 4457.4—2002 )) The example of center lineThe example of center line CorrectCorrect Small circleSmall circleWrongWrong The center line should connect with the line segment Should be longer than the segment Should leave some Space 2 ~ 5mm The end point can't be dotted There is no room in the circle center, and can't be dotted Should be a short line, not a dot Too long The center line of small circle can be replace by continuous thin line
  11. 11. DimensioningDimensioning (( GB/T4458.4GB/T4458.4—— 20032003 )) 1.1. Basic rulesBasic rules 2.2. The example of dimensionThe example of dimension
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