BRAND MODEL 630 CNC 4-AXIS HIGH PRECISION PROFILE CREEP

GENERAL SPECIFICATIONS:

Clamping surface of table 40" x 10"
Grinding surface (including wheel width 300mm) 28" x 13"
Longitudinal stroke 29"
Transversal stoke 11"
Distance between table and spindle center 20" Max.
Table load 900 LBS Max.
Grinding wheel spindle drive
Spindle drive with infinitely variable peripheral speed of the
grinding wheel up to maximum 1,400"/Sec.,with programmable
cutting speed compensation (12kW)
Grinding wheel dimensions max. 16" x 2.5" x 5"
Vertical and traverse axis
Numerically controlled vertical and transverse axis with direct
measuring system
Minimum feed rate
Feed rate of vertical axis 120"/Min max.
Transverse axis 120"/Min max.
Longitudinal axis
Electro-Mechanical drive of the longitudinal table with
servomotor and recirculating ball screw
Feed rate
Multi-Axis control Siemens 840 D NC
Operator controlled program input in conversational and menu
interface (no CNC programming knowledge required)
Programming capabilities
Standard
Drive up of reference points
Manual operation
Automatic grinding cycles with absolute or relative measure of the
target position
Cont. on
GENERAL SPECIFICATIONS:
(cont.)
Standard (cont.)
Start finish and final dressing with automatic dressing increment
and surface speed compensation
Continuous traverse or plunge grinding
Overhead straight wheel dressing hydraulic system
Straight dressing from the table
Shoulder/groove grinding
Linear interpolation for angle dressing
Creep feed grinding
Steel or diamond crush-roll dressing
Program for multi-dressing through rough cut operation
Continuous path control for grinding wheel profiling
Additional machine equipment
Brushless (AC) sercvo and spindle motors
Hand feed of the numerically controlled axes with movable electronic
hand wheel with integrated digital display, selection of the axis
and rapid adjustment +/- and steps per unit 0.00004" / 0.0004"
Free standing electrical cabinet according to IEC and VDE standards.
includes engine-hour indicator
Cooling device (heat exchanger) for electrical cabinet
Voltage 3 x 400/230 Volt +.- 10%, 50 Hz (3P,N.PE)
Automatic central lubrication
Machine color Light ivory RAL 1015
Clay brown RAL 8003 (base machine & vertical column)
Additional Tooling and Equipment Relevant to this Application
Dressing devices
4th CNC-axis (rotation axis), for the control of the CNC-dressing device
or of a dividing apparatus resp. rot. table
Dressing roll unit for profiling of the grinding wheel with steel or
diamond roll, mounted in the longitudinal table
Grinding program creep-feed grinding
Coolant purifier for creep-feed grinding
Coolant tank, tank capacity 270 gallons
1 Circuit coolant pump 40 gallons/min, pressure 3 bars
Automatic paper filter 55 gallons/mins
Cont. on page 3
Page 3 of 3
GENERAL SPECIFICATIONS:
(cont.)
Grinding wheel high pressure coolant nozzles for the
cleaning of the wheel
Automatic adjustment of the coolant jets and grinding wheel cleaning
nozzles, when the grinding wheel gets smaller
Coolant emulsion chiller, cap. 3,7 kW
Grinding wheel balancing system
Automatic balancing system, control integrated in operator's control
panel, for the balancing of the grinding wheel
Rotary table
Type Lehmann, full CNC
Clamping device
Clamping system consisting of the complete assembly with 3 clamping
stations mounted on rotary axis
Loading system
Fully automatic loading/unloading system consisting of
Vibrating bowl feeder with orientation unit
Loading station located in front of rotary clamping system
Positive stop for part axial precision positioning before clamping
Exit chute for part evacuation