1. The main structure part is made of gray cast iron HT250 which has good strength, wear resistance and heat resistance and good vibration reduction performance. Internal reasonable layout, enhance the rigidity;

2. The machine is used for plane grinding, using middle master electromagnetic chuck clamping;

3. The grinding head of the machine tool adopts horizontal structure.

4. Left and right (X-axis) adopts C3 large lead ball screw and roller linear guide rail directly connected structure, the servo motor drives the left and right fast and steady reciprocating motion,with 3232 large lead screw transmission speed, high repeated positioning;

5. Front and rear (Y axis) adopts C3 class ball screw and P class roller linear guide rail connected structure, driven by servo motor ball screw through linear guideways to make stable reciprocating motions before and after;

6. The spindle adopts PF120 powerful spindle frequency converter to control the spindle motor running at constant line speed.

7. Adopt the New Generation system or Siemens control system, 10 inch LCD display, and equipped with handheld control unit; The machine adopts diamond pen to automatically dress grinding wheel. Grinding wheel automatic dressing and compensation function to maintain the consistency of grinding size;

8. The upper and lower (Z axis) adopts C3 level ball screw and hard guide rail directly connected structure, driven by servo motor, with high rigidity and repetition accurate positioning and other advantages;

9. The outer cover of the machine tool adopts non-calibration billing door opening structure. A maintenance window is opened on the right side to facilitate the installation of the cylinder and clean the surface of the tooling.An air suction device is made above the outer cover to facilitate the installation of centralized dust pipe device to play a good dustproof effect .

10. Grinding wheel dressing is a system-controlled fixed-point dressing mode, which can improve the dressing speed of new grinding wheel.

 

A.  Main Technical Parameters

 

Parameters	Unit	Specifications
Worktable Size	mm	250×600
Max. left and right (longitudinal)movement	mm	660
Max. forward and backward (cross) movement	mm	270
Cross feed rate	mm/min	300
Cross feed resolution	mm	0.001
Max. distance from work surface to spindle center	mm	540
Size of grinding Wheel	mm	250mm*25mm*75mm
Rotation speed of grinding wheel	(RPM/min)	800—3600
Min. vertical feed of grinding wheel (resolution)	mm	0.001
Min. before and after feed of grinding wheel	mm	0.001
Longitudinal feed speed of worktable	(mm/min)	0.1-24
Surface roughness of machined specimen	μm	Ra0.4
Spindle radial runout	mm	≤0.002
Spindle end face runout	mm	≤0.002
Up and down (Z-axis) repeated positioning accuracy	mm	≤0.002
Before and after (Y-axis) repeated positioning accuracy	mm	≤0.002
Left and right  (X-axis) repeated positioning accuracy	mm	≤0.005
Machine overall size (L*W*H)	mm	2800*2000*2200
Machine Net weight	KG	3600