This machine is applicable for grinding cylindrical hole with grinding diameter of 150-500mm and conical hole with not large conical degree. The maximum grinding depth is 450mm. It is mainly applicable for single piece small batch production.
I. Structural features and performance of the machine tool
1. Layout it adopts headstock for fixing（manual horizontal adjustment of 250mm based on practical need）, working table for reciprocating motion and the abrasive wheel frame for feed motion;
2. The work piece spindle is of rolling bearing structure with good system rigidity and high rotation accuracy;
3. The clamping of work piece adopt three-jaw self-centering chuck or disc chuck with manual clamping;
4. It adopts mechanical abrasive wheel shaft.
II. Technical specification and parameters
| Grinding hole diameter | 150~500mm | ||
| Maximum grinding depth | When the hole diameter is 150～250mm | 350mm | |
| When the hole diameter is 250～500mm | 450mm | ||
| Maximum weight of the workpiece | ≤300kg | ||
| Maximum rotation diameter of the workpiece | Inside the shell | 510mm | |
| Outside the shell | 725mm | ||
| Maximum horizontal movement amount of the headstock | 250mm | ||
| Maximum stroke of the working table | 725mm | ||
| Maximum rotation angle of the headstock | 15° | ||
| Rotation speed of the workpiece | 28～320r/min(6speed) | ||
| Rotation speed of the abrasive wheel | 2450, 4200r/min | ||
| Maximum horizontal movement amount of the abrasive wheel | 100mm | ||
Total Power（8.89/9.69/10.09kw） |
Hydraulic motor |
1.5kw |
|
Grinding wheel motor |
5.5kw |
||
Cooling motor |
0.09kw |
||
Work piece motor |
1.8/2.6/3kw |
||
Physical dimension of machine tool |
3760x1690x1830mm |
||
Net weight of the machine tool |
4500kg |
||
Work accuracy |
Inner hole roundness |
0.005mm |
|
Diameter consistency |
0.015mm |
||
Roughness |
Ra0.63μm |
||