Camshaft cylindrical grinding machine-GP32
1. Ultra-rigid bed structure.
2. Built-in Renishaw circular grating with ultra-high precision and
rigid direct drive workpiece head.
3. Swiss design high-precision dynamic and static grinding wheel
spindle.
4. X-axis linear guide with self-circulating roller structure with
high bearing capacity.
5. Japan C2 precision ball screw drive table.
6. The grinding wheel head (X-axis) uses Anka's unique cylindrical
linear motor.
7. Heidenhain 50 nm grating scale feedback.
8. Fixed/rotary dual-purpose precision workpiece head frame,
equipped with air flotation function.
9. High rigidity air float tail seat.
10. Flexible options configuration
Device description:
1. The body and components are cast by Milhanna high grade cast
iron FC30, which is artificially normalized heat treatment and then
treated by natural aging. Components are processed by YASDA, MITSUI
SEIKI, TOSHIBA, ELB and other world-class equipment once clamping
processing. Precision size can be up to micron level, to ensure
high precision equipment basic components.
2. Machine guide rails and precision ball screws are continuously
lubricated by automatic lubrication system to ensure longer service
life and accuracy. The cooling system is separated from the body to
eliminate vibration and favorable heat dissipation.
3.Equipped with Siemens 828D CNC automatic grinding system, and
secondary development, man-machine dialogue fool operation, with
many optional equipment to choose from, including inner hole
grinding device, automatic end measuring device, automatic outside
diameter measuring device, etc.
4. The grinding feed system is composed of a V and a flat track of
hand-crafted precision shovel, with automatic lubrication system
and C3 level precision grinding ball screw, which can achieve
smooth movement, excellent repeated positioning accuracy and long
track life.
5. The standard configuration of the grinding wheel spindle is rear
four and rear two bearing structure. High precision dynamic and
static pressure spindle can also be selected, which has the
characteristics of high rotation precision, high dynamic stiffness,
good vibration resistance, high grinding efficiency and good
grinding surface quality. For special work-piece grinding, the
grinding wheel speed can be adjusted, up to 3500 RPM and 60m/s.
6. The tail seat is designed to be both rigid and robust. A
hardened alloy steel sliding cylinder encrusted in the cast iron
body is designed to carry the MT4 top core. The jacking force of
the sliding cylinder can be easily changed by adjustment knobs at
the rear. Special accessories oil pressure tail seat with a pedal
to facilitate unloading work parts.
7.Siemens numerical control system as the standard configuration,
after secondary development, all Chinese operation interface, easy
to use. Equipped with Siemens high performance servo motor, the
equipment CNC system and drive system have better compatibility, at
the same time with automatic sand repair and automatic compensation
function, to ensure the stability and precision of feed and
grinding.
Detailed technical specifications and structural functions of
machine tools:
| project | parameter |
| Scope of work | |
| Center height | 210mm |
| Maximum diameter of rotation | Φ400mm |
| Maximum grinding diameter | Φ400mm |
| Length of grinding between two tops | 600mm |
| Table rotation (Type 600) | ﹢6°/-9° |
| Maximum bearing between two tops | 60kg |
| Grinding wheel holder | |
| Rotatable Angle range (manual) | ±15° |
| Grinding wheel spindle type | Main shaft of dynamic and static grinding wheel (standard with oil
cooling) |
| Speed range of grinding wheel spindle | 1650/1850/2100rpm |
Standard Grinding wheel size (φ×W×B) | Φ450×20-50×127mm |
Special Grinding Wheel Size (φ×W×B) | Φ510×15-50×203mm |
Grinding wheel spindle motor power | 3.75KW/5.5KW |
Maximum linear speed of grinding wheel | 45m/s |
Grinding wheel spindle cooling mode | Oil cooling |
| Workpiece direct drive head frame | |
Speed range stepless speed regulation | 0-600rpm |
| Taper of spindle taper hole | MT-4 |
| Tooling adapter sleeve model | MT-4 |
Rotating Angle range of workpiece head frame | ﹢15°/-15° |
Maximum gripper load (with tooling) | 150Nm |
Permanent magnet synchronous motor power (S1-100%/KW) | 3KW |
Continuous rated output torque (S1-100%/A) | 47.8Nm |
| Encoder brand | Renishaw |
| Spindle cooling mode | water-cooling |
Head frame rotation repeat positioning accuracy | ±2arcsec |
| Shaft end taper hole runout | ≤0.001 |
| Spindle end face runout | ≤0.002 |
| Axial stiffness (N/um) | ≥500 |
| Radial stiffness (N/um) | ≥400 |
| Head frame movement mode | Manual air float standard |
| Tail seat | |
| Sleeve diameter | Φ50mm |
| Sleeve stroke | 40mm |
| Morse taper | MT-4 |
| Tailstock movement mode | Manual air float standard |
| Wheel holder feed -X axis (linear motor) | |
| Maximum stroke of X axis | 300mm |
| Maximum thrust of X axis linear motor | 1660-3060N |
| X axis linear motor acceleration | ≤0.2G |
| Maximum feed velocity on the X axis | 15m/min |
Minimum HPG (electronic hand wheel) feed | 0.0001mm |
| Programmable minimum feed | 0.0001mm |
Minimum resolution of Heideham incremental grating ruler | 0.0001mm |
| X-axis feed positioning accuracy | ≤0.0016mm |
X axis feed repeated positioning accuracy | ≤0.0014mm |
| project | parameter |
Table feed Z axis (servo motor) | |
| Z-axis stroke (Type 600) | 750mm |
| Z-axis servo motor power | 2.2KW |
| Maximum Z axis feed velocity | 8m/min |
Minimum increment of HPG electronic handwheel | 0.0001mm |
| Programmable minimum feed | 0.0001mm |
Minimum resolution of Heideham incremental Grating ruler (optional) | 0.0005mm |
| Control system | |
| Numerical control system | Sodium rhenium |
| software | Graphical interactive interface |
| Display screen | 10.4 inch TFT color display |
| keyboard | Full keyboard |
| memory | 3Gb |
| Number of control axes | Up to 7 axes can be controlled |
| interface | USB/RS232 |
| Machine tool electrical | |
| Standard 3-phase power supply | 380V 3ph 20Hz |
| Control loop voltage | 110vAC/24vDC. |
| Input voltage deviation range | ﹢/-10％ |
Full load power consumption (main engine) | 36KVA |
| Pneumatic supply | |
| Input pressure | 5.5bar |
| Required flow | 40-50L/min |
| Air source standard | BS ISO 8573-1:2001 |
| Environmental parameter | |
| Standard machine noise | ＜75dB(A) |
| Ambient temperature | 0-40℃ |
| Ambient humidity | ≤75％ |
| Other | |
| Footprint size | 3800×3200mm×2195 |
| Height | 2170mm |
| Net weight | 5440kg |
