Machine Drawing

Part Drawings 369

dharm
d:\N-Design\Des19-1.pm5

plates 11, 12, 13, 14 and 15 which are held in position by the round headed machine screws

19 and 20. A live center 17 is mounted in the spindle by means of reduction sleeve 16.

16

76

M16×2

f 32

f 38

32

3

2

f 75

6 18 66

10

SQ THD 16×4 LH

2 OIL HOLES DIA 3

25 f^21

(^32513)
35
11
(^191619)
(^845)
f 22
38
15 f^16111111
11
6
(^1019)
32
f 38
143
f 120
187
16
3
1
(^68)
16 44 16
2 OVAL HOLES,
8×5
98
7
3828
8
5
17
58
4
36
14
58°
14
34
18 29 18
29
29 18
18
18
18
36
41
41
10
2 HOLES, DIA15
Part No. Name Matl. Qty.
1 2 3 4 5 6 7 8 9
10
Body
Slide block
Tool holder
Nut
Wearing strip
Bearing plate
Washer
Adjusting screw
Screw
Machine screw
Cl
Cl
MS
MS
MS
MS
MS
MS
MS
MS
1 1 1 1 1 1 1 1 1 2
Parts list
9
19
RR
22
10
32
66
f^12
Fig. 19.9 Lathe slide rest

The spur gears A, B and H are keyed on the drive shaft, whereas the gear G is an integral

part of the shaft. A compound gear sleeve, consisting of gears D and E is mounted on the inter-

mediate splined shaft to which are keyed the gears C and F. All the gears from A to H are of the

same module, 2.5 mm. The compound gear I and J of module 3 mm are also mounted on the

intermediate shaft. Compound gears K and L of module 3 mm are fixed to the spindle.

For obtaining different spindle speeds, the gear sleeve consisting of the gears C, D, E and F

is moved on the spline shaft by lever X and the compound gears I and J by the lever Y. The

following gear engagement provides 8 different speeds for the spindle: