Blueprint Reading 259
dharm
d:\N-Design\Des17-1.pm5
14. Explain the note at × (5 : 1).
15. Explain the linear and angular tolerances provided.
16. Explain φ 50 f 7.
17. What type of tolerance is given on φ 16?
18. Explain SR 5.
19. What is the length of the internal thread?
X
X
KNURL
DIA 80 BEFORE
KNURLING
0.8 4 × 45°
f
50f7f
25
2
M20×2.5
22 MIN. LENGTH^3060
25
25
±0.1
40 125
(165)
20
35
M20×2.5
f 26
50
2 × 45°
14°30 ± 0°10¢¢
X
R 2 maxSR 5
14
R
12 14
5 max.
R 1.25
max 60°
f
16.4016.07
(5 : 1) Detail at X
X–X 4 HOLES,
DIA 6
45
45°
ff 6565
Fig. 17.6 Connector
17.3.3 Square Tool Post
The assembled views of a four way tool post are shown in Fig. 17.7. Study the drawing and
answer the following :
1. How is the tool post fixed on the compound slide?
2. What is the size of the square tool post body?
3. What is the maximum size of the tool or tool holder that can be fixed in the tool post?
4. How many tools can be fixed in the tool post?
5. How is the tool indexed and the tool post clamped?
6. What is the fit between the body (1) and stud (6)?
7. What is the thread size on the stud?
8. How many steel balls with springs are used in the unit?
9. How many square headed screws are used for clamping all the 4 tools?
10. What is the maximum diameter of the clamp?
11. Specify size of the stud.
12. What is the size of the base plate that fits into the tool holder body?
