Name: BGK-320 High Speed CNC Cylindrical Grinding Machine
Brand: TIMAC
Availability: InStock

Product Details

High Speed CNC Cylindrical Grinding Machine

BGK-320 BGDK-320

Main Outlook

Summary

Machine Summary

As middle and high grade CNC machine tools, BGK-320 and BGDK-320 CNC (end face) cylindrical grinding machines are independently developed on the basis of applying new technologies and rich experience of designing and manufacturing CNC grinding machines. Characterized by the universalization, high-degree modularization, high rigidity, high efficiency, high adaptability, high precision, easy to operate and reliable performance, these machines are suitable for the mass productive processing of automobile engine crankshaft, camshaft, differential housing, flange plate, and parts of transmission system, such as transmission shaft, half shaft, gear (wheel) shaft, etc, in addition, they also can be applied in the small-scale high precision productions in workshops of military industries, aviation industry, aerospace industry and common precision machining.

Main Performances

Features and Performance

With the rational layout and integral protective cover, the machine tool is convenient for maintenance and in conformity with human engineering requirements.
With a sleeve type hydrostatic/hydrodynamic mainshafting adopted for the grinding wheel spindle, the machine tool features on the high rotary precision and good rigidity. The linear speed of the grinding wheel can reach 60m/s (for specially ordered) and that of CBN grinding wheel is 80m/s(for specially ordered).
With two-axis linkage feeding, the machine tool is equipped with worktable(Z axis) and a wheel head(X axis) driven by AC servomotor and ball screws, the maximum feed speed of 10m/min; the feed of the wheel head is equipped with special vibration absorbing measures.
The machine tool can be provided with various types of diamond dressers (installed on the rear side of the work head) according to the needs of customers, thus realizing precise CNC dressing, adapting to grinding of external cylindrical surfaces, taper surfaces, end faces, shaped cylindrical surfaces arc surfaces and grooves, ensuring the stability of the fitted precision not less than 80% in case of grinding batches of tapered surfaces and achieving automatic compensation.
The machine tool is provided with an imported or a domestic active measuring device, thus realizing the closed-loop control of grinding process.
The machine tool adopts an imported advanced CNC system and is provided with all-around controlling functions including grinding program changes, workpiece quality control, machine condition monitoring, fault self-diagnostics, abnormal alarm, and convenient menu type interface input.

Specifications List

Technical Parameters

Specifications		Units	BGK-320			BGDK-320(End face)
			*750	*1000	*1500	*750	*1000	*1500
Maximum swiveling diameter		mm	Φ350			Φ350
Distance between centers		mm	750	1000	1500	750	1000	1500
Height of center		mm	180			180
Maximum grinding diameter		mm	Φ320			Φ320
Maximum workpiece weight between centers		kg	150			150
Control system			FANUC/SIEMENS			FANUC/SIEMENS
Grinding wheel(max.)	ODWID	mm	Φ750120Φ305/Φ500(CBN)
	Linear speed	m/s	45/60/80(CBN)			45/60/80(CBN)
Wheel head	Total travel	mm	330			330
	Feed speed	mm/min	0.1-5000			0.1-5000
	Minimum setting unit	mm	0.001			0.001
	Oblique angle	°	90			60
Worktable	Type		Two layer conical degree adjusting worktable
	Feed speed	mm/min	0.1-5000			0.1-5000
	Minimum setting unit	mm	0.001			0.001
Workhead	Center		MT.NO.5			MT.NO.5
	Rotating speed	rpm	30-300(stepless)			30-300(stepless)
Tailstock	Cneter		MT.No.5			MT.No.5
	Travel of center	mm	60			60
Electrical system	Power of wheel spindle motor	kw	18.5			18.5
	Torque of wheel head feeding motor	N.m	22(FANUC)/27(SIEMENS)			22(FANUC)/27(SIEMENS)
	Torque of worktable feeding motor	N.m	22(FANUC)/27(SIEMENS)			22(FANUC)/27(SIEMENS)
	Power of work head spindle motor	kw	22(FANUC)/27(SIEMENS)			22(FANUC)/27(SIEMENS)
	Hydraulic pump motor	kw	0.75			0.75
	Power of wheel spindle bearing lubrication pump	kw	0.75			0.75
Cubage dimension	Hydraulic and lubricating oil tank	L	45			45
	Spindle bearings oil tank	L	45			45
Net weight		kg	10000	11000	13000	10000	11000	13000

Working Accuracy

Inspection item	BGK-320 BGDK-320
Roundness	0.003mm
Consistency of the longitudinal section diameter	0.008mm
Roughness	Ra0.2um(longitudinal grinding)
	Ra0.4um(plunge-cut grinding)
	Ra0.63um(end face grinding)

Layout Plan(Unit:mm)

Model	L
BGK-320/BGDK-320*750	4000
BGK-320/BGDK-320*1000	4400
BGK-320/BGDK-320*1500	5800