Directed Electronics D2400 Instruções de Operação descarregar pdf (Página 17)

8. Applications

8.2.1 General note

Feed:

The feed is switched on by means of the T-handle on the front side of the headstock.

When cutting threads it must be remembered that the feed remains on throughout

to ensure that the turning chisel always returns to the same positon when repeating

the thread cutting process. For this reason, the turning chisel is cammed out with

the transversal support after completing the cut, as otherwise, the flanks and cutting

edges could be damaged, and is returned to its original position by altering the

turning direction of the motor via the reversing switch. It is advisable to make a 4-5

mm wide groove at the end of the thread in order to facilitate the camming out of

the thread cutting tool.

Long threads:

In the case of long threads always use a live lathe centre in order to prevent the work piece from

being pushed away.

Overload clutch:

To avoid damage to the feed system, the lead screw and the lead screw drive are connected to an

overload clutch.

8.2.2 Application of change gears for D2000 and D2400

For the purpose of automatic longitudinal turning there are two feed rates available: 0.085 mm and

0.16 mm/revolution. (The machine is delivered with the gears producing a feed of 0.085

mm/revolution put on). Putting on different combinations of gears enables you to cut metric threads

ranging from 0.35 to 6.0 mm in pitch. The same applies to inch thread ranging from 10 threads/" to

36 threads/" in pitch.

Table on thread cutting * = optional accessories

mm 0.35 0.4 0.5 0.7 0.75 0.8 1.0 1.25 1.5 1.75

A 40 48 48 48 48 48 48 48 48 48

B 14 16 20 14 18 16 14 20 36 28

C 48 40 40 20 24 20 14 16 24 16

C1 32 32 32 32 32 32 32 32 32 32

D 120 120 120 120 120 120 120 120 120 120

E 140 140 140 140 140 140 140 140 140 140

mm 2.0 2.5 3.0 3.5 3.75 4.0 4.25 4.5 5.0 6.0

A 48 48 48 48 32 24 24 24 24 24

B 40 40 48 28 40 32 34 36 40 48

C 20 16 16 16 16 16 16 16 16 16

C1 32 32 32 32 32 32 32 32 32 32

D 120 120 120 120 120 120 120 120 120 120

E 140 140 140 140 140 140 140 140 140 140

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 38 39

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Directed Electronics D2400 Instruções de Operação Página 17