Home  >  Metal Processing Machinery  >  Machine Tool Equipment  >  Lathe

Integrated with precise turning, cylindrical grinding,Hawking mirror finishing.Work out spherical work piece with mirror surface - details see: https://www.machineto.com/screw-rod-super-finishing-lathe-for-single-screw-pump-pregressive-cavity-pump-10127760

CNC machine tool for surface finishing of metal shaft, thrust runner collar and other metal surface

1. Integrated with precise turning, cylindrical grinding and HawkingPT mirror finishing.

2. Work out spherical work piece with mirror level only after loading once, surface roughness less than or equal to Ra0.2µm.

3. It can strengthen surface of metal work piece, preset compression stress and raise micro-hardness, wear-resistance, anti-corrosion, fatigue lifetime, eliminate micro-defect.

4. Can choose either hydraulic self-centering float clamping and hydraulic tighten function, especially suitable for slim & long spindle and thin-wall work-piece of weak rigid.

Major featureof Compound machine tools:

1.The machine can grind conical surface by changing angle degree of worktable. It can be done with precision cutting and HawkingPT super finishing processing to conical, arc, and curved surface by feeding in X & Z direction.

2. Tool bed is made of whole manmade marble, which has good vibration absorption and rigidness with small thermal deformation.

3. Longitudinal direction (Z) guide rail is planet V-shape static guide rail, scrapping manually. Transversal (X) direction adopts high precision and imported double V-shape roller guide rail. So the guide rail has good precision and guiding. X and Z guide rails adopt servo motor and driven by THK ball screw imported by Japan with high location precision.

4. Grinding carriage is like structure of grinding head on normal grinding machine. Grinding axes is supported by an imported and precise centering pushing ball bearing. Headstock is built by an imported and precise main spindle unit. Grinding carriage and headstock are both driven by frequency conversion motor to get Supered speed-regulating.

5. It is controlled by FANUC 0i-TD CNC system.

Major precision index:

1. Location precision: X and Z axles are 0.004/0.006mm;Relocation precision of X and Z axes are 0.002/0.003mm.

2. Roughness of work piece surface is Ra≤0.2µm.

3. Roundness is 0.002mm.

4. Size precision: IT5.

5. Straightness:0.005mm,using test bar of Φ90×1000mm.

Main specification and parameter of of Compound machine tools:

Specification			Unit	Parameter
Main technical parameter	Distance between two centers		mm	2010
	Grinding length		mm	500-2000
	Height of center		mm	105
	Weight of work piece loading on two centers		Kg	200
	Power		V/Hz	380V/50Hz
	Power need		A	75
	Room for set-up / L W H		mm	6700×5000×2800
	Weight		Kg	18000
Vertical guide rail	Stroke		mm	2200
	Quick Travel Speed		m/min	20
	Resolution		µm	1
	Torque of Servo motor		Nm	22
Horizontal guide rail	Stroke		mm	310
	Quick Travel Speed		m/min	10
	Resolution		µm	0.5
	Torque of Servo motor		Nm	12
Grinding carriage	Motor power		Kw	11
	Line speed		m/s	50
	Diameter of grinding wheel	Max.	mm	600×60×203
		Min.	mm	470×60×203
	Width of grinding wheel		mm	60-80
Headstock	Rotation speed		rpm	50-1200 alternating frequency speed-regulating
	Power		kw	2.2
	Inner-cone of main spindle			No.70
Tailstock	Inner-cone		Mohs	No.5
	Stroke of sleeve		mm	60
CNC control system				FANUC 0i-TD
Testing device	Axial location of work piece			T18
Balance device				Balance support
HawkingPT	Line speed		m/min	80
	Roughness (Ra)		µm	0.2