Product
The machine design for use in automative industry ,precision component manufacturing.
SMK304 CNC Internal Thread Grinder
-Grinding for Internal Thread and circular INQUIRY● The grinding machine is professional to processing in ball nut of Internal thread, cylindrical and ending surface for once clamping.
●T type mineral casting frame get better in vibrating and heat distortion.
●The diamond dressing wheel install on Z axis, and let grinding wheel dressing amount can be compensated automatically
●A axis motor let internal grinding wheel to swing angle +-25° by automatic program.
Machine tool structure diagram |
T type granite base stand,keep high precision and small expansion |
A axis motor let internal grinding wheel to swing angle +-25° by automatic program. |
Internal thread grinding wheel is motor spindle , speed 500-24000rpm. |
When using diamond wheel to dressing grinding wheel ,X axis and Z axis will interpolation dressing together. |
Spindle runout 0.003mm |
| ltem | Unit | Parameter | |
| Capacity | Max.grinding internal thread diameter | mm | Φ12～Φ60 |
| Max.grinding internal thread length | mm | 150 | |
| Max.grinding internal diameter | mm | Φ20～Φ120 | |
| Max.grinding internal length | mm | 150 | |
| Max.lead angle | degree | Right 25° Left 25° | |
| Processing accuracy | Tolerance on one pitch (trapezoidal internal thread) | mm | 0.002 |
| Tolerance on 25mm length | mm | 0.003 | |
| Cumulative tolerance on 50mm length | mm | 0.006 | |
| Consistency error in pitch diameter | mm | 0.004 | |
| Thread surface roughness | μm | Ra0.32 | |
| Outer cylindricity | mm | 0.004 | |
| Outer roughness | μm | Ra0.4 | |
| Roughness of the flange end face | μm | Ra0.63 | |
| External grinding wheel spindle | Max.spindle speed | rpm | 3000 |
| Rated power | kW | 5.5 | |
| Spindle cooling method | Oil cooling | ||
| External grinding wheel size | mm | φ400X32Xφ127 | |
| Internal thread grinding wheel speed | Max.spindle speed | rpm | 36000 |
| Rated power | kW | 8.5 | |
| Spindle sleeve outer diameter | mm | Φ120 | |
| Spindle lubrication method | Oil mist lubrication | ||
| Spindle cooling method | Oil cooling | ||
| Grinding wheel material | CBN/ White corundum | ||
| Spindle axial runout, radial runout, cross-sectional runout | mm | 0.003 | |
| Diamond wheel speed | Wheel size(OD×ID×TH) | mm | Φ100×Φ25×30 |
| Max.spindle speed | rpm | 10000 | |
| Spindle lubrication method | grease lubrication | ||
| Rated power | kW | 1.5 | |
| Spindle cooling method | Oil cooling | ||
| Workpiece spindle | Spindle speed | rpm | 0～100 |
| Rated torque | Nm | 60 | |
| Rated power | kW | 9.5 | |
| Min.angle unit | degree | 0.001 | |
| Spindle lubrication method | grease lubrication | ||
| Spindle cooling method | oil cooling | ||
| Spindle axial runout, radial runout, cross-sectional runout | mm | 0.003 | |
| Rotary axis C positioning accuracy | ” | 14 | |
| Rotary axis C repeated positioning accuracy | ” | 10 | |
| Spindle can be used for center flushing | |||
| X/Z axis | Machine travel (X/Z) | mm | 6500/350 |
| Min.feed | mm | 0.001 | |
| Linear axis X positioning accuracy | mm | 0.004 | |
| Linear axis X repeated positioning accuracy | mm | 0.003 | |
| Other | Motor power | Kw | 45 |
| Air power required | MP | 0.5 | |
| Cooling tank volume | L | 600 | |
| Machine size(Length*width*height) | mm | 3100/2000/2410 | |
| Machine weight | T | 6 |
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edcan@jianyegroup.cn
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