this CNC ball grinding machine by means of the simultaneously rotating of the balls and the grinding plates to lap the ball surface.

by means of machine X direction movement to centralize the ball,by means of machine Z direction movement to precisely control the ball dimension,by means of end frame movement and replace the rotating grinding plate in order to lap difference specification of the balls from 3''-8'' by means of hydraulic device to support the balls and top end stretch by means of top end and balls simultaneously rotating, eliminate the balls and the top end relative movement.

this machine is made up of basic parts( body,slide seat,work table etc) and main spindle box, Spindle box full automatic constant-temperature circulation cooling machine, head frame, end frame,Grinding device, end frame movement device, workpiece auxiliary supporting device,lubricating,cooling,drain and protecting devices, and electrical hydraulic parts etc.

 

 

1. 1.   Main Data and specifications

 

Item	Unit	Model: QM380
Max Ball Lapping Diameter	mm	Φ80-φ320
Max Ball Bore Diameter(≈)	Inch	3''-8
Distance between top central line to the table	mm	250
Max Ball Weight	Kg	1000
the power of Main Spindle Motor	kw	15
Main Spindle Rotating Speed Range	Rpm	0~3000
the Power of the lathe-head Motor	kw	3
Lathe-head Rotating Speed Range	Rpm	6-125
the Journey of the X/Z direction	mm	300/250
the adjusting range of the end frame	mm	200
Head/tail frame apex		Mohs 5"
the precision of orientation of X/Z axis	mm	±0.005
the precision of repeat orientation of X/Z axis	mm	±0.003
Ball Roughness degree	Ra	0.4-0.2
Ball Roundness	mm	below 0.01
Approx. Dimension(LXWXH)	mm	270024502600
Approx Net Weight	Kg	6000