The characteristics of this series of machine tools are as follows:
- The series adopts an integral high-rigidity bed structure, with high universality and modularity, making it widely applicable. The standard configuration of the machine tool adopts the GSK internal/external cylindrical grinding CNC system, which features stable performance, simple operation, easy maintenance, and high precision control. It can achieve programmed grinding, measurement-controlled grinding (requires optional measuring device), automatic wheel dressing, compensation, and other functions.
- The grinding wheel spindle adopts a sleeve-type dynamic pressure spindle, ensuring high rotary precision, strong rigidity, and low-temperature rise.
- The moving guide rails of the grinding wheel carriage and worktable adopt a hard rail structure, imported ball screws, and high-torque servo motors to ensure feed rigidity and accuracy. The headstock is driven by a servo motor, enabling stepless speed regulation and precise stopping at any position.
- It can be equipped with imported or domestic active measuring devices to realize online measurement of grinding processes. The tailstock adopts a hydraulic telescopic sleeve structure.
- Control System: Standard configuration – GSK grinding system; Optional configuration: New Generation Siemens, FANUC.
| 项目内容 | Item Contents | MK1320x250 | MK1320Bx500 | MK1320Bx750 | MK1420B |
|---|---|---|---|---|---|
| 工作台上最大回转直径（mm） | Max.grinding diameter on table | Φ240 | Φ240 | Φ240 | Φ240 |
| 两顶尖最大距离（mm） | Max. distance between two centers | 255 | 520 | 770 | 520 |
| 卡盘夹持承载重量（Kg） | Max.chuck load | 30（Optional configuration） | 30（Optional configuration） | 30（Optional configuration） | 30 |
| 顶尖间最大承载重量（Kg） | Max.load between two centers | 50 | 50 | 50 | 50 |
| 外圆磨削范围（mm） | Max. external grinding diameter and length | (Φ5-Φ200)x250 | (Φ5-Φ200)x500 | (Φ5-Φ200)x750 | (Φ5-Φ200)x500 |
| 内孔磨削范围（mm） | Internal grinding diameter | none | none | none | Φ13-Φ80 |
| 最大磨削内孔深度（mm） | Max.internal grinding depth | none | none | none | 125 |
| 头架顶尖孔（Morse） | Spindle taper of headstock | MT.4 | MT.4 | MT.4 | MT.4 |
| 尾架顶尖孔（Morse） | Spindle taper of tailstock | MT.4 | MT.4 | MT.4 | MT.4 |
| 外圆砂轮尺寸（外径 x 宽x 内孔）（mm） | External grinding wheel size | Φ500x32/63xΦ203 | Φ400x50xΦ203 | Φ400x50xΦ203 | Φ400x50xΦ203 |
| 砂轮架、工作台进给速度（x、z 轴）（mm/ min） | Feeding speed of grinding wheel and table | 0.05-3000 | 0.05-3000 | 0.05-3000 | 0.05-3000 |
| X、Z 轴最小设定单位（mm） | Min.setting unit ( X and Z axis ) | 0.001 | 0.001 | 0.001 | 0.001 |
| 砂轮主轴电机（KW） | Motor of grinding wheel spindle | 5.5 | 5.5 | 5.5 | 5.5 |
| 主轴类型 | Type of wheel spindle | Dynamic pressure | Dynamic pressure | Dynamic pressure | Dynamic pressure |
| 主轴转速（r/min） | Spindle speed | 1440 | 1440 | 1440 | 1440 |
| 砂轮线速度（m/min） | 35 | 35 | 35 | 35 | |
| 内圆磨削电机（KW） | Motor of internal grinding spindle | none | none | none | 0.55 |
| 内圆电机转速（r/min） | Motor speed of internal grinding spindle | none | none | none | 2800 |
| 头架主轴电机（N.m） | Motor of headstock grinding spindle | 6 | 6 | 6 | 6 |
| 头架转速（r/min） | Motor speed of headstock grinding spindle | servo-type speed control | |||
| 砂轮架进给电机（N.m） | Feeding motor of grinding wheel | 15 | 15 | 15 | 15 |
| 工作台进给电机（N.m） | Feeding motor of worktable | 7.5 | 7.5 | 7.5 | 7.5 |
| 总电源功率（KW） | Total drive capacity | 9 | 11 | 11 | 11 |
| 工作精度（mm） | Accurancy | National standard | |||
| 圆度（mm） | Roundness | 0.003 | 0.003 | 0.003 | 0.003 |
| 圆柱度（mm） | Cylindricity | 0.005 | 0.005 | 0.005 | 0.005 |
| 表面粗糙度（um） | Surface roughness | Ra ≤ 0.16 | Ra ≤ 0.16 | Ra ≤ 0.16 | Ra ≤ 0.16 |
| 机床净重（Kg） | Net weight/Gross weight | 1600 | 2400 | 3000 | 2100 |
| 机床尺寸（长 x 宽 x 高）（mm） | Packing dimension | 1900X2300X1450 | 2560X1500X1800 | 2800X1500X1800 | 2560X1500X1800 |
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