CHIEN WEI PRECISE TECHNOLOGY CO., LTD.

PRECISION JIG GRINDER

JG-510CM / JG-1070CM

A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required. The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more than a manual milling machine or lathe). It is almost used by tool and die makers in the creation of jigs or mating holes. There are usually many peripheral elements to a jig grinder, including linear motors, pneumatic grinding head (or electrical grinding head), and various cooling systems for supplying coolant to the work and machine itself.

The machine operates by a high speed spindle rotation. The spindles are removable and interchangeable to achieve varying process speeds. Some spindles are fixed speed (60,000 rpm), others are adjustable (30,000 ~ 50,000 rpm), and still others are very high speed (150,000 rpm). The main spindle has a wide range of speeds to ensure proper grinder feed rates are maintained. The machines have a standard X and Y table. All axes are indexed to 0.0001 on the handwheels. The machine head adopts linear motors. The spindle rotates at a variable speed and with an accuracy of 0.0001 for very precise holes and grinding. A reliable jig grinder will let work to achieve a higher degree of efficiency level. These features are all critical in precise process.

Precision Jig Grinder - JG-510CM / 1070CM

Specification

	JG-510CM	JG-1070CM
WORK RANGE OF THE SLIDES
X AXIS	500 mm (19.7" )	1000 mm (39.4" )
Y AXIS	300 mm (11.8" )	700 mm (27.6" )
Z AXIS	100 mm (3.9" )	100 mm (3.9" )
W AXIS	340 mm (13.4" )	400 mm (15.7" )
MAX FEED SPEED
X, Y AXIS	10000 mm/min	10000 mm/min
Z AXIS	10000 mm/min	10000 mm/min
READING RESOLUTION
X, Y AXIS	0.05 um	0.05 um
Z AXIS	0.05 um	0.05 um
Cs AXIS	0.001 deg	0.001 deg
LOCATION ACCURACY
X, Y AXIS	±0.0015 mm	±0.0025 mm
POSITION CODER
X, Y AXIS	Linear encoder	Linear encoder
Z AXIS	Linear encoder	Linear encoder
Cs AXIS	Magnetic sensor	Magnetic sensor
TABLE
TABLE AREA (LxW)	700x340 mm (27.6"x13.4")	1080x860 mm (42.5"x33.9")
PERMISSBLE LOAD (MAX)	300 kg	1000 kg
NUMBER OF T-SOLT	5	8
SHAPE OF T-SOLT	10.0 mm (Width)	12.0 mm (Width)

Character

1.	FANUC 18i-MB Controller.	8.	Max. Load ( JG-510CM ) : 300 kg Max. Load ( JG-1070CM ) : 1000 kg
2.	Both for an irregular chopping and planetary grinding jobs.	9.	XY Feeding Speed : 10000 mm/min ( Max. )
3.	X, Y, Z, CS 4 axes controllable simultaneously.	10.	Resolution : 0.05 um ( X, Y, Z )
4.	Z axis Motor Driving for vertical chopping.	11.	Location accuracy ( JG-510CM ) : + / - 0.0015 mm ( X, Y, Z ) Location accuracy ( JG-1070CM ) : + / - 0.0025 mm ( X, Y, Z )
5.	Abnormality detecting automatically while power on.	12.	Planetary grinding roundness < 0.003 mm
6.	Grinding Head r.p.m. adjustment on the controller panel.	13.	The Z axis is driven by a linear motor for a motion of high speed as well as high precision.
7.	Working Travel ( JG-510CM ) : 500 x 300 x 100 mm ( X, Y, Z ) Working Travel ( JG-1070CM ) : 1000 x 700 x 100 mm ( X, Y, Z )	14.	Special design of 12 modules for various diameters grinding setting.

Samples of finished parts

=SKD11 HRC 62°	Rough Cut	Finish Machining
GRINDING PENCIL (OR GRINDING WHEEL)	( CBN#150 )	( CBN#150 )
ROTATING SPEED	30.000 rpm	30.000 rpm
RESERVING	0.2 mm	0.015 mm
CUTTING FEED RATE	40 mm/min	20 mm/min
CUTTING FEED	0.1 mm	0.005 mm
PROCESS TIME	About 15 minutes	About 30 minutes

Processing drawing

JG-510CM chopping finished parts