Description

JUNG J 630-D – Year 2002
CNC Surface and Contour Grinder
Model: J630D
Size: 12″ x 23″
Age: 2002

Table working surface ( l x w ) 23.622” x 9.842”
Grindable surface (including wheel width 25 mm) 23.622” x 12.007”
Size of magnetic chuck 24” x 12”
Maximum distance between top edge of table and spindle center (Y) 19.291”
Maximum table load (including magnetic chuck) 260 lbs

GRINDING WHEEL
Diameter 11.811”
Width 1.181”
Bore hole 3.000”
Radial wear 1.772”

GRINDING SPINDLE
Input power 13.410 HP
Maximum cutting speed 115’/sec
Mounting taper 1:10

MACHINE AXES
X-AXIS (horizontal motion, longitudinal)
Traversing speed, Reciprocal Grinding
(hydraulic, steplessly adjustable) 39.370~944.881 “/min

Traversing speed, deep Creepfeed grinding
(with AC servo motor) 0.197~39.370 “/min
Traverse path between limit switches 24.803”
effective reciprocating stroke 24.803”

Y-AXIS (vertical motion)
Traversing speed 0.004~78.740 “/min
traverse path between limit switches 14.083”
axis resolution / input resolution: see description of controls

Z-AXIS (horizontal motion, cross)
Traversing speed 0.004~78.740 “/min
Traverse path between limit switches 10.945”
axis resolution / input resolution: see description of controls

INSTALLATION AND ELECTRICAL DATA
Machine width 118”
Machine depth (without control panel or control cubicle) 106”

Machine height (depending on equipment) 96”
Weight (machine without casing or control cubicle) 5512 lbs
Weight (machine with ordinary casing and control cubicle) 7055 lbs

Operating voltage VAC / Hz 400 / 50
Control voltage VAC 230
Control voltage VDC 24
Total power requirement with grinding power 13.5 HP
Fuse protection A 35

MACHINE CONTROL
SIEMENS 840D CONTROL
Control panel with 10.4” TFT flat screen, color
Digital drive technique for the machine axes, basic equipment 3 axes + 1 grinding spindle, further axes can be integrated
Program management
Automatic, electric brake for grinding spindle drive
— 4-quadrant DC drive, variable speed 800 – 4200 RPM, prepared for Modem-connection for online diagnostics

CONTROL FEATURES
Control in accordance with type designation
Reciprocal surface grinding, 1 surface
Continuous feed
Grinding infeed on one or both sides
Reciprocal surface grinding, 1 surface
Intermittent feed on one or both sides
Grinding infeed on one or both sides
Reciprocal plunge grinding, 1 groove
Grinding infeed on one or both sides
Cylindrical peripheral dressing from table
Automatically compensation of dressing dimension
Tool management consisting of 1 grinding wheel and 1 dressing set
Menu-guided technology programminginfeed values, feed rates, allowances, gauge blocks, peripheral speeds, sparking-out strokes, dressing cycles and intervals
Modification of technology during machining
Input / output of programs via V24 / RS232C
Programming during machining

Linear scales for vertical and transverse axes
Jung remote control panel with electronic handwheel, readout of actual position and control elements
for all manual functions

Grinding spindle drive DC motor, 10 kW output
Vertical and transverse axes with servo motor and ball screw in closed position control loop
Automatic central lubrication unit for screws and column table and cross-slide guides
1 grinding wheel flange

INCLUDED ACCESSORIES
A-PA31K Automatic profile dressing tool with 4 diamond-changing device comprising:
— Dressing tool with turret head for 4 single diamonds.
— Dressing arm integrated in cover
— Setting device with dial gauge (0.001 mm) for aligning dressing diamonds
— 4 diamond holders for dressing diamonds (shank diameter 9.25 mm)

TECHNICAL DATA
Dressing range: 50 mm
Profile width: 15/20 mm
Profile depth, inside / outside: ± 0.0025
Traverse paths:
W axis 55 mm
U axis 60 mm
E axis ± 45 degrees
Maximum dressing speed 1000 mm/min

Hydraulic fluid Chiller for:
— high ambient temperatures
— short stroke
— for use with creepfeed
— transverse positioning
Coolant purification system with flushing valve for deep grinding comprising:
Coolant tank with band filter system, filter paper, coolant pipes, coolant outlet, rubber splash protection.
Addition of NS-KA450 is possible.
Dimensions L/W/H 2170/820/800 mm
Height of inlet 565 mm
Filter capacity 150 l/min.
Tank capacity 450 l/max.
Filter paper width 710 mm
Delivery rates:
Creepfeed pump l/min. 70 at 3.5 bar
Discharge flow rate at nozzle l/min. 100
Grinding/dressing pump l/min. 70 at 0.2 bar
Discharge flow rate at nozzle l/min. 25

Isolating transformer for connected electrical loads other than 400 V / 50 Hz or 400 V / 60 Hz

Electro-permanent magnetic chuck, manufactured by Jung, with continuous cross-pole graduation, longitudinal stop bar.
Magnetic potential 210 V
Supply voltage 400 V
Clamping surface mm 600 x 250

Full enclosure of working area. Z-axis travel is reduced by 10mm.

Documentation, including:
— operating instructions
— electrical wiring diagram
— SPS program print
— list of electrical parts
— list of spare parts and of parts for wear and tear

Deep grinding with AC control (creepfeed grinding) including automatic adjustment of the cutting power during creepfeed grinding for optimizing the grinding process. The table feed rate is adjusted according to the cutting performance. The feed rate is steplessly adjustable. Creepfeed programs for up and down-grinding with integrated operator guidance.

Grinding mist collector, comprising of:
— air filter, type SNA20
— surface area 20 m3/min
— motor output 0.75 kW, 1.8 A
— voltage 400 V 3 Ph, 50 Hz
— percentage purity 99.9%
By use of CNC machines switchable by program.

Complete set HSK: 1 spindle, 1 flange, 1 clamping device. Z-zero clamping system based on hollow shank taper, clamp for grinding wheels, ultra-precise positioning in the Z and Y directions when the
grinding wheel is changed.

Grinding wheel flange HSK40. Z-zero clamping system based on hollow shank taper, clamp for grinding wheels, ultra-precise positioning in the Z and Y directions when the grinding wheel is changed.

Network connection for control Siemens 840 D, consisting of hardware adapter for control, network card and system software.

Vector CAD module for individual input of geometries (qualification G-SG32) with functions consisting of input of geometries, manipulation of geometries (rotate, reflect, etc.) and linking to GRIPS 32.

Warm-up / run-off program with time switch function for starting up and shutting down the machine automatically
— start function: spindle ON, coolant ON
— X-axis reciprocates, Z-axis reciprocates
— run-off function: spindle runs for defined time period
— programmable: date and time (date selectable ON / OFF)

Tool management for 100 grinding wheels enlargement and 30 dressing diamond sets.
G-Batch programming.
Automatic transverse positioning with 999 uniformly spaced divisions, each with the same depth and 40 irregularly spaced divisions with different depths.
Automatic reciprocal face grinding with selectable wheel edges (left or right).
Grinding program for CNC path grinding in the transverse direction (Z/Y).
Grinding program for CNC path grinding in the longitudinal direction (X/Y).