Main characteristics of this machine tools
● This machine is a two axis (X-axis, Z-axis) CNC Internal Grinding machine, which is mainly used to grind the inner hole, step hole, inner end face and outer end face of the work piece. The grinding cycle is completed automatically (with automatic feed, withdrawal, rough grinding and fine grinding); Automatic dressing of grinding wheel, automatic compensation, etc.).
● The machine tool adopts the structure mode that the work piece box do the forward and backward feed movement and the worktable (grinding wheel frame) do the left and right movement. The feeding guide rail of the work piece box and the reciprocating guide rail of the grinding wheel frame are linear rolling guide rails, and the movement is driven by the servo motor throught ball screw.
● The rotation speed of work piece spindle and grinding wheel motorized spindle is controlled by frequency converter to realize stepless speed regulation.
● The work piece fixture use a hydraulic power chuck, and other matching fixtures can be configured according to the particularity of the user's work piece.
● The machine tool adopts a fully enclosed enclosure, with a front rotary operation box and a rear backpack electrical cabinet.
Specification parameter list
| Model of machine tools | MK2120 | |
|---|---|---|
| Grinding aperture（mm） | ф20-200 | |
| Maximum grinding depth (mm) | 200 | |
| Swing diameter of work piece (mm) | Inside the shell (mm) | ф400 |
| Outside the shell (mm) | ф600 | |
| Maximum rotation angle of headstock（°） | 30° | |
| Rotating speed of work piece（r/min） | 30-600 stepless speed regulation | |
| Rotating speed of grinding wheel （r/min） | 0-24000 stepless speed regulation | |
| Power of x axis servo motor（kw） | 2 | |
| Resolution of z axis（mm） | 0.001 | |
| Maximum stroke of z axis（mm） | 200 | |
| Power of z axis servo motor（kw） | 3 | |
| Resolution of z axis（mm） | 0.001 | |
| Maximum stroke of z axis （mm） | 600 | |
| Power of work piece motor （kw） | 2.2 | |
| Power of grinding wheel motor（kw） | 7~15 | |
| Total power of machine tools （kw） | 23.8 | |
| Outline dimension of machine tools （mm） | 3100×2120×2000 | |
| Weight of machine tools （kg） | 4500 | |
| Working accuracy (according to standard specimen) | Roundness of internal hole（μm） | 2 |
| Cylindricity of internal hole （μm） | 3 | |
| Surface roughness of internal hole（μm） | Ra0.4 | |
