Paragon CNC Angular cylindrical grinding machines

Paragon CNC Angular cylindrical grinding machines  

Angular Cylíndrical Gríndíng Machínes
CNC Seríes
CNC seríes (Heavy-Duty)

ANGULAR CYLINDRICAL GRINDING MACHINE
GA CNC SERIES
Positíoníng Accuracy: 1 ti m
Repeatabílíty Accuracy: ± 0.5 μ m
The GA CNC Series are unique models of angular cylindrical grinding machines by PARAGON and are suitable for long, multisteps and profile cylindrical grinding with
up to 0.1 ia m positioning accuracy, which offer the best choice for high accuracy.
The main features are as follows:
• Grinding wheelhead spindle with unique
hydrostatic-hydrodynamic hybrid bearings
• Multi-function, high roundness Workhead
• Hydraulic and manual adjustable Tailstock
• Highly rigid Machine Base with Hydrostatic Lubrication on guideways
• Heidenhain sub- μ m Linear Scale with closeloop feedback
• X and Z-axes have high torque Servo Motor directly coupled to the class C1 Ballscrew
( Ф 40mm)

Controller
FANUC (Standard)
SIEMENS/MITSUBISHI (Optional)
/ PARAGON CNC series angular cylindrical grinding machines, each with a color
screen have the latest technology in digital control systems.
ѕ/ To give you the latest advancements in
CNC technology, PARAGON provides a unique, convenient operating interface to
reduce set-up time and increase efficiency. No need to perform home
position return when starting machine. 
High accuracy is provided by a powerful servo ABS system with auto memory and
highly efficient ai servo motors that directly drìve ballscrews.
Ѕ/ Automatically memorizes the grinding wheel position in case of power failure.
/ Emergency Back button for retracting grinding wheel instantly.
./ Colorful graphic display and Manual Pulse
Generator (M.P.G.) handwheel for easy adjustment. Counter input of offset value
and dressing compensatìon.
Applícable lndustríes:
• Aerospace parts
• High precision machine parts
• Hydraulic & pneumatic parts
• Automotive and motorcycle parts, etc.

ANGULAR CYLINDRICAL GRINDING MACHINE
GAH CNC SERIES (HEAVY-DUTY)
Extra Large Grindíng Wheel: Ф 610x160x203.2mm
Max. Grindíng Wheel Perípheral Speed: 60m/s
The new generation CNC angular
cylindrical grinding machine, the GAH CNC Series (Heavy-Duty) by
PARAGON, is especially designed for high-speed grinding, offering greater
capabilities than the GA CNC Series.
This innovatively designed machine with optimal and sturdy components can
provide long service life, lessen grinding time and will bring you to a new level
of grinding experience.
• X-axis and Z-axis greater span of guideways afford larger load capacity than GA CNC Series.
• Time-saving and high efficiency in cycle and setup. The machine can
accommodate an extra large grinding wheel with 610 mm diameter and 160
mm wìdth, which can complete multisteps grinding at one time, greatly shortening grinding time and assuring high rigidity and precision.
• Larger grindíng wheel spindle.
( Ф 115x741 mm)
• Z-axis class C1 ballscrew is temperature controlled by circulating
coolant, achieving minimum thermal displacement effect and greater accuracy.

GAH CNC Seríes (Heavy-Duty)
Compared wíth GA CNC Seríes Type

Guídeway for X-axís
The GAH dimensions of X-axis are
increased by 50%.

Guídeway for Z-axís
The GAH dimensions of Z-axis are increased by 90%.
Unit:mm
Grinding Wheel
The GAH extra large grinding wheel: productivity is increased by 145%.
#Diagram not to scale.

Unparalleled Quality Assurance and Control
The systematic development, production and assembly are carried out in a process oriented manner and in strict
compliance with 1s0 9001 directives.
PARAGON's O.C. staff conducts rigorous quality control throughout the entire manufacturing process before shipment.
Our quality control process includes: a) Strict lncoming Materials lnspection; b) Geometric Accuracy lnspection; c)
Unloaded spindle Test and d) Grinding Test.
Quaiity Assurance
Over and Over Again, PARAGON's Dedícatíon to Qualíty Wíns Customer's satisfaction and Loyalty.
In order to produce the highest quality and value-added products, PARAGON has invested a great amount in purchasing up-to-date and sophisticated automatic manufacturing equipments and measuring devices, including a CNC Horizontal
Machining Center, Roundness Measuring lnstrument, Roughness Measuring lnstrument, Coordinate Measuring
Machine, etc., and a nearly 13,200 square meter aír conditioned plant, all of which is to provide a controlled environment and to improve the quality assurance.

ANGULAR WHEELHEAD
Rígíd and Precíse Hydrostatíc-Hydrodynamíc Hybrid Bearings
The wheelhead is driven through Vshape belts by a powerful motor and equipped with a hydraulic/lubrication system with independent temperature
control to provide the least thermal displacement effect, class 01
ballscrew ( Ф 40mm) and Heidenhain
sub- u m linear scale with full closeloop feedback. Overall, the machine
achieves ± 0.5 μ m repeatability accuracy

Hydrostatíc-Hydrodynamíc
Hybríd Bearíngs
PARAGON'S unique design for accuracy assurance features: (a) no
metal to metal friction (b) no overheat and no deformation (c) no oilleakage as no oil seal is installed (d) grinding capacity greater than hydrostatic bearing only.

Hydrostatíc Slídeways
Hand scraped and features an oil lubrication system which reduces the metal friction and guarantees constant high accuracy.

Spíndle
The grinding wheel spindle is made
of high quality alloy steel (sNCM439) and treated through: normalized, tempered, carburized hardening and then sub-zero treatment (below zero degrees celcius). Its hardness is more
than HRC 62° . Then follows precision grinding processes: rough grinding,
semi-finish grinding, finish grinding and lapping. The lapping process
assures superior surface finish and greatly enhances spindle life and
stability guaranteeing deformation free performance throughout íts durable service life.

The workhead's rigid design, driven by servo motor, features
reliable and precise operation. NN roller bearings and angular contact bearings in the workhead spindle reduce edge stress and friction, improving concentrícity
and surface finish of workpieces.
The spindle nose can be equipped with rotary cylinder, chuck and fixture applications for
easier grinding of various workpieces.

Sensor
This technology optimizes the grinding processes:
• Rotation rpm monitoring.
• Be1t status indication. Alarm will activate if belt is broken.
• Easy loading and unloading of workpieces to reduce set-up time.

Dressíng Unít
Unique fixed-type wheel dresser featuring constant coordinate posítion without calibration. Diamond tool holder mounted beside workhead table.

TAILSTOCK
Flexíble and Easy Operatíon
Taper Correctíon Adjustment
The fine adjustment makes the finest possible taper correction in the range below 1 μ m when grinding between centers.

Air Blast
Air blast on tailstock absolutely prevents fluid and dust from entering
the quill.
The rigid tailstock is equipped with a hydraulic actuated barrel
retraction by foot paddle and manual handle for easy
workpiece loading and unloading. It is designed for the use of M.T.4 taper centers.
Center pressure can be adjusted for high precision, which is required for small and thin workpieces.
Table Taper Correctíon device
The fine adjustment makes the finest table taper correction possible.

The machine base is manufactured from high quality
Meehanite cast iron, low center of gravity, featuring rigidity over
108 N/m and natural frequency over 150 Hz, analyzed by advanced Finite Element
Method (FEM). Along with vibration stress release, these outstanding structural features
assure high strength, maximum damping capability and longer service life.

Class C1 Ballscrews
Feature hydrostatic lubrication, low friction coefficiency, and are pretensioned for increased rigidity and hìgh positíoning accuracy, providing minimum feeding accuracy
ín 0.1 ц m.

Guídeways
• Machine Base with extra wide V and
Flat guideways on base combined with great span in between exhibit
outstanding stability during grinding operation.
• Extra fine hand scraped over the entire contact surface of guideways
and oil lubrication system guarantee high accuracy and maximum durability for axes movement

ACCESSORIES
Optímízed Performance and Customízed Automatíon

Touch Probe (Standard)
The reliable touch probe can quickly and accurately detect the end face position on
workface, reducing idle time and boosting productivity.
Gap Eliminator / Crush Control(Optíonal)
This device wíll automatically detect the setting up or machining condition. If any abnormal
condition occurs, the grinding wheel will rapidly
retract for safety.
Rotary-type Díamond Dresser (Optíonal)
Driven by a senıo motor, it offers precision profile dressing and high torque output; service life at least 50 times more than blade-type dresser.
Automatíc in-process Gauge (Optional)
This device automatically and continuously measures the workpiece being machined and
compares the actual síze to pre-set values, bringing the workpiece to the accurate dimension.
Aír Condítíoner (Optíonal)
Provided for the electric cabinet to maintain the control circuit at a constant temperature at all times. Extension of service time, maximum stability, dependability of control and performance are assured.

Automatic in-process gauge.
Dynamic wheel balancer.
Gap eliminator / crush control.
Oil mist separator.
Work rest, table-mounted type. Adjustable 2-point steady rest,
2pcs/set, 10 thru 120mm dia. table-mounted type, 10 thru
capacity. 100mm dia. capacity.
Adjustable 3-jaw chuck, 178mm
dia.with reversible jaws and
adaptor to spindle nose.
Vibration meter.
Magnetic coolant separator.
Rotary-type dressing attachment.
Cam-locked type work driving dog:
10, 20, 30, 40, 50, 60mm dia.
6pcs/set.
lndependent 4-jaw chuck, 200mm
dia, with reversible jaws and adaptor to spindle nose.
Paper filter.

CNC Series
■ GA-3515CNC
■ GA-3535CNC
■ GA-3570CNC

CNC Series (Heavy-Duty)
■ GAH-3540CNC
■ GAH-3580CNC