Siemens GC..M.. Bedienungsanleitung PDF herunterladen (Seite 8)

GORATU MAQUINAS HERRAMIENTA,S.A.

GCM 4 / 5 / 6 / 8 / 10 6 JANUARY - 2011

7. RAM

§ The ram is made of pearlitic grey cast iron, quality EN-GJL-300 (UNE-EN 1561

standard), with a hardness of 190-220 HB, and is dimensioned and robustly reinforced

with inner ribs to absorb the cutting and weight forces and subjected to finite elements.

§ The ram has two size-45 rolling linear guide ways with recirculation rolls carriages,

closed and protected against contamination.

8. SPINDLE HEAD

§ Both bodies of spindle head are made of spheroidal graphite cast iron, quality EN-GJS-

HB155 (UNE-EN 1563 standard), with a hardness of 130-180 HB.

§ The Spindle head is made up of two parts joined at 45º, which rotates around each other

and are joined to the front part of the ram.

§ The head fitted on the machine can be “HURE” type, “ORTHOGONAL” type,

“HORIZONTAL L 290mm” and “HORIZONTAL L 650mm”. The standard head fitted on

the machine is a “HURE” type with the following main features:

o Hardened and ground Klingerlberg-type epicyclical taper gears

o Hardened and ground spindle shaft DIN 5480 (gear type).

o Main spindle bearing diameter 85 x 130 mm.

o Super-precision angular-contact ball bearings on the entire head.

o Hydro-mechanic type tool clamping system (clamping force 13 / 16 kN).

o Adapted to the machine and commanded by the CNC.

o Complete installation with safety interface.

o Rigid tapping.

o Spindle taper and pull stud options:

- Spindle taper DIN 69871 A/50 and pull stud DIN 69872 A (STANDARD)

- Spindle taper DIN 69871 A/50 and pull stud ANSI B5.50

- Spindle taper MAS 403 BT/50 and pull stud MAS 403 BT (45º)

- Spindle taper DIN 2080/50 and pull stud DIN 69872 A

9. DIGITAL DRIVE OF MAIN SPINDLE

§ The main motor is equipped on the upper part of the ram, and has a two-speed reducer

box fitted that transmits the power to the main spindle to the machine through pulleys

and belts.

§ The change of the “Speed range” is performed by means of a two-speed box for the

motors.

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Siemens GC..M.. Bedienungsanleitung Seite 8