CNC Cylindrical Grinding Machine
K10 Series
In order to meet fine finishing olhigh performance train axles of Rail transportation industry requirement, developed production-CNC grinding machine K1020.K1022. Machine is suitable for large batch processing high-speed railway axle wheel seat surface, cylindrical sealed surfaceend-face and excessive arc section, with high rigidity, strong bearing, high accuracy, high efficiency.
Feature
- With the rational layout and integral protective cover, the machine tool is convenient for maintenance and in conformity withhuman engineering requirements.
- With a sleeve type hydrostatic/hydrodynamic main shafting adopted for a grinding wheel spindle, the machine tool features orthe high rotary precision and good rigidity. The linear velocity of the qrinding wheel can be up to 50m/s.
- With two-axis linkage feeding, the machine is equipped with worktable (Z axis) and wheel head (X axis) driven by AC servomotoiand ball screws, the maximum feed speed reaches 5m/min.
- The machine can be provided with various types of diamond dressers according to the needs of customers, thus realizing precisenumerical control dressing and automatic compensation.
- The machine tool is provided with an imported or a domestic active measuring device, thus realizing the closed-loop control ogrinding process.
- The machine tool adopts an imported advanced CNC system and is provided with all-around controling functions includinggrinding program changes, work-piece quality control, machine condition monitoring, fault self-diagnostics, abnormal alarm, andconvenient menu type interface input.
Specifications
| Specifications | Unit | K1020 | K1022 | |
|---|---|---|---|---|
| Maximum swiveling diameter | mm | Φ630 | ||
| Distance between Centers | mm | 3000 | ||
| Height of center | mm | 335 | ||
| Maximum grinding diameter | mm | Φ500 | ||
| Maximum workpiece weight between centers | kg | 1500 | ||
| Control System | – | SIEMENS / FANUC | ||
| Grinding wheel (Max) | OD×W×ID | mm | Φ750×240×Φ305/Φ900×240×Φ305 | Φ750×350×Φ305/Φ900×300×Φ305 |
| Linear speed | m/sec | 50 | ||
| Wheel head | Total travel | mm | 430 | |
| Feed speed | mm/min | 0.05 – 5000 | ||
| Minimum setting unit | mm | 0.001 | ||
| Oblique angle | Degree (°) | 0 | 20 | |
| Worktable | Type | – | Two layer conical degree adjusting worktable | |
| Feed speed | mm/min | 0.05 – 5000 | ||
| Minimum setting unit | mm | 0.001 | ||
| Work head | Center | – | MT.NO.6 / metric 80 | |
| Rotating speed | r/min | 20 – 200 (stepless) | ||
| Tailstock | Center | – | MT.NO.6 / metric 80 | |
| Travel of center | mm | 100 | ||
| Electrical system | Power of wheel spindle motor | kW | 37 | |
| Torque of wheel head feeding motor | N/m | 50 (SIEMENS) / 40 (FANUC) | ||
| Torque of worktable feeding motor | N/m | 50 (SIEMENS) / 50 (FANUC) | ||
| Power of work head spindle motor | kW | 5.5 | ||
| Hydraulic pump motor | kW | 11 (4P) | ||
| Power of wheel spindle bearing lubrication pump | kW | 3.75 (4P) | ||
| Cubage dimension | Hydraulic and lubricating oil tank | L | 75 | |
| Spindle bearings oil tank | L | 140 | ||
| Net weight | – | T | 22 | |
Working Accuracy
| Inspection item | K1020 / K1022 |
|---|---|
| Roundness | 0.0025 mm |
| Consistency of the longitudinal section diameter | 0.008 mm |
| Roughness (cylindrical surface) | Ra≤ 0.32 μm |
| Roughness (end face) | Ra≤ 0.63 μm |
Typical Machining Workpieces
