Function introduction:
This machine tool is mainly used for finishing and semi-finishing non-circular pinholes for forged steel pistons(tapered holes, curved holes,?hyperbolic?holes). Equipped with?double spindles arranged?left and right?, the one is for fine boring (the left spindle), the other is for semi-fine boring (the right spindle).
The fine boring spindle is the static-dynamic pressure spindle and equipped with precision micro-displacement servo boring device, which completes non-circular piston pinholes (tapered holes, curved holes) surface machining under the condition of high-speed rotation of the spindle. The size of the pinhole can be fine-tuned by program, and the non-circular pinhole size and length can be adjusted by program.
SIEMENS 828D system?is adopted, for which the programming is flexible and convenient, and the reliability is high.
Main technical parameters:
|
S/N |
Item |
Unit |
ETK2708A |
|
1 |
Outer diameter range of machined piston |
mm |
Φ80?~ Φ200 |
|
2 |
Pinhole diameter?range of the machined piston |
mm |
Φ30?~Φ80 |
|
3 |
Fine boring spindle |
|
Static-dynamic Pressure Spindle |
|
4 |
Semi-fine boring spindle |
|
Bearing Spindle: A2-6 |
|
5 |
Fine boring Spindle Accuracy |
mm |
0.002 |
|
6 |
Semi-fine boring?Spindle Accuracy |
mm |
0.003 |
|
7 |
Fine boring Spindle Speed (stepless speed regulation) |
rpm |
50~1500 |
|
8 |
Semi-fine boring?Spindle Speed (stepless speed regulation) |
rpm |
50~1500 |
|
9 |
Maximum effective offset of the fine boring edge |
mm |
0.06 |
|
10 |
Processing roughness |
μm |
Ra0.63 |
|
11 |
Fine-boring straight hole roundness |
mm |
0.002 |
|
12 |
Fine-boring monoliteral pinhole straight-line cylindricity |
mm |
0.004 |
|
13 |
Machine?(L×W×H) |
mm |
2900×1700×2450 |
|
14 |
Net weight of the machine |
kg |
5500 |
|
15 |
Overall power?of the machine |
kW |
25 |