Paragon CNC Internal grinding machines

Paragon lnternal Gríndíng Machínes CNC Seríes
NC Seríes 
Economícal Seríes
ID/OD Twín-Spíndle Gríndíng Machínes

INTERNAL GRINDING MACHINES
CNC SERIES
Flawlessly Desígned for the Most Metículous
Machíníng Operations
PARAGON reachesnewdimensions with the latest generation of CNC internal grindIng
machines. The lnternal Grinding machine has efficient and reliable programming
of grinding and dressing cycles suitable for mass production of shaft ,rods,bushing
and cylindrical workpieces with precise concentricity on inner diameters. The other
main features are:
• Nimble and precise positioning wheelhead
• Multi- function and manual adjustable workhead
• Highly rigid machine base with hydrostatic lubrication on guideways on Z axis.
• X and Z axes have high torque servo motor directly coupled to the ballscrew class C1.
• Heidenhain sub- u m linear scale with closeloop feedback on X axis.

Applícable lndustríes:
• Aerospace parts
• High precision machine parts
• Hydraulic & pneumatic parts
• Automotive and motorcycle parts, etc.
• Medical applications
• Precision bearings
• Electrical/Electronic equipments
• Cutting tools

Controller
FANUC (Standard)
 PARAGON CNC series internal grinding machines have digítal control that is
designed to easily automate, each with a
LCD screen display system.
PARAGON provides operating interface for easy datainput,and programming that reduce set-up time Ø increase efficiency.
Programs can be downloaded by RS-232 interface or input from a flash-card through
a PCMCIA port.
servo motors directly driven by C1 class
ballscrews, minimizing backlash.
Maintenance function such as a diagnosis
function and alarm message is provided
to quickly identify the cause of a failure.
The amount of dressing during grinding compensate for grinding wheel cutting
and dressing in canned cycles. 
Manual Pulse Generator (M.P.G.) handwheel is provided for adjustment.
ѕ/ Emergency stop button.

Unparalleled Quality Assurance and Control
The systematic development, production and assembly are carried out in a process oríented manner and in strict compliance with 1s0 9001directives.
PARAGON's O.C. staff conducts rigorous quality control throughout the entíre manufacturing process before shipment.
Our quality control process includes: a) Strict lncomíng Materials lnspection; b) Geometric Accuracy lnspection; c)
Spindle Test and d) Practica Grinding Test.
Qualíty Assurance
Over and Over Again, PARAGON's Dedícatíon to Quality Wins Customer's satísfactíon and Trust.
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 CNC Horizontal
Machining Center, Roundness Measuring lnstrument, Coordinate Measuring Machine, etc., and a nearly 23,000 square meter air conditioned plant, all of which to provide a controlled environment and to assure the quality.

Slíde Table
The wheelhead motion (X-axis) is driven by senıo motor with 01 class
ballscrews, resulting in rapid motion and accurate positioning for internal
grinding.
WORKHEAD
Workhead Swivel Angle
Workhead utilizing precision taper roller bearings and ball bearings on
both sides can take both radial and axiallarge loads due to greater contact
area to compensate for spindle thermal expansion and operate with
zero radial clearance rigidity.
Automatíc Belt Tensíon
Adjustment
Eliminates the need for manual adjustment to reduce maintenance
time, also assure full power transmission to additionally extend the service life of precision bearings inside the spindle.
Sensor
The sensor mounted on workhead is designed for (a) easy set- up of grinding wheel and workpiece (b) monitor rotation rpm (c) belt status
indication.

Gríndíng Wheel Dressíng
Device
One unique dresser device combined with touch sensor technology features
constant coordinate position that offers precision profile dressing.

Multí-Functíon Workhead
Workhead can be equipped with rotary cylinder, chuck applications or fixture
for varied workpieces.
Workhead will swível forward 13 degrees and backward 5 degrees for taper grinding.

The machine base is manufactured from high qualìty 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 dampìng capability, and longer service life.

Wheelhead Guídeways (X-axís)
The table motícn (CNC series),driven by servo motor , features with high rígídíty
and durability to extend senıice life.
C1 classballscrews feature automatic lubricator ,low friction coefficiency
and are pretensioned for increased rigidity and highpositioningaccuracy,
providing minimum feeding accuracy in 0.1 μ m on X axis and Z axis.

Guídeways (Z-axís)
Extra wide V guideways on base combined with great span in between and constant hydraulic lubrication, exhibit outstanding stability during grinding operation and micro-feed accuracy. The table motion (CNC series) is driven by servo motor with C1 class ballscrews.

Hand-Scrapíng
Extra fine hand scrapped over the entire contact surface of guideways guarantees high accuracy and maximum durability for axes movement.

Face Grindíng Attachment
Grinding wheel is driven by powerful motor (1 HP) for grínding end face at the edge
of workpiece.

ID In-process Gauge
This device automatically and continuously measures the
workpiece being machined and compares the actual síze to pre-set values, bringíng the
workpiece to the accurate dímension.
(Optional for CNC Series)
Rotary-type Dressing Unít
Two types of rotary dressíng unít can be supplied. One type ís with small diamond wheel for dressing of normal grínding wheel. The other is with small alumínum oxide
wheel for truing the surface of new diamond gńnding wheel to enhance gńnding accuracy.
(Optional for CNC Series)
GREASE-PACKED BELT DRIVEN TYPE

SNCM-8
HRC=52--54
Cementation mm

Intellígent Robot Solutíons
The robot arm ís the intelligent solutíon for flexible manufacturíng systems.
They can easily change
applícations with speed and accuracy and be quickly reprogrammed that meet your requirements, for now and in the future.
(Optional for CNC Series)

NC SERIES
R1G-150NC
♦ Dialogue type interface, the latest graphic control and digital control technology.
♦ Self diagnostic function for trouble shooting.
♦ Automatic memory while power failure.
♦ Memory function of infeed and dressing compensation.
♦ Multi-dressing can be set up during grinding.
♦ Dressing compensation can be adjusted on-line.

ECONOMICAL SERIES
R1G-150
♦ Hydraulic driven automatic wheel infeed.
♦ Hydraulic lubrication features low friction coefficiency, and is pretensioned for increased rigidity and high positioning accuracy.
• Tapered roller bearing in wheelhead handles both axial and radial loads to maintain the
stability of high precisìon during high-speed rotation.

Totally New Design Concepts RTG-100CNC

CNC 1D/OD TwínSpíndle Gríndíng Machíne
Desígned to Fully Meet Your Rígorous Requírements for Parts Accuracy
No matter what end face perpendicularity and concentricity between inner and outer diameters, the RTG-100CNC from PARAGON will offer the accuracy you've come to expect. The RTG-100CNC is equipped with a high performance CNC control combined wìth conversational interfacing for easy operation

• Excellent for mass production lines.
• Guaranteed accuracy, círcularity and concentricity.
• Maximum 8 faces grinding in one cycle.
• Fully enclosed splash guard.
• Twin Grinding spindles configuration for ínternal and cylindrical grinding.
• Eliminates repetitive chucking error of workpiece.
• High repeatability accuracy. Greatly upgrades production effíciency.
• Reduces cycle time.
• Maximum cylindrical grinding diameter: Ф 320 mm
• Range of internal grinding diameter: Ф 6- Ф 100 mm.

Versatíle, Multí-face Machining
RTG-100CNC permíts varíous gríndíng types
Maximum 8 faces to be accomplíshed ín one cycle.

Exceptíonal Rígíd Base Buí1t for Stabílíty!
• Extra fine craftsmanship of scraping on both sides guarantees high accuracy
and maximum durability for axes movements.
• Powerful FANUC servo ABs system with auto. memory and (Yis strong with
 high efficiency servomotor directly drives ba11 screw for high feeding accuracy.
The grinding wheel dressing feed is driven by FANUC high precision servomotor
for added positioning accuracy.
• The X-axis is equipped with a Heidenhain precision linear scale for close loop feed -
back.This high precision linear scale eliminates ballscrews pitch error with backlash while ensuring dependable feeding accuracy.
 •The high precision class C1 ball screw features low frictíon coefficiency, and is pretensioned for increased rigidity.high positioning accuracy, providing minimum feeding accuracy in 0.1 um.
• The 2-direction single point diamond dresser exhibits accurate forming performance for both dressing or sharpening.

Applícable lndustries:
• Aerospace parts
• Medical applications
• Precision bearings
• High precision machine parts
• Electrical / Electronic equípments
• Automotive & motorcycie parts, etc...
• Cutting tools

MACHINE LAYOUT
RIG-150CNC
RIG-150NC
RIG-150
MACHINE LAYOUT
RTG-100CNC

ACCESSORIES
CNC Controller (FANUC/SIEMENS/MITSUBISHI)
NC Controller
R1G-150CNC R1G-150NC R1G-150 RTG-100CNC

Automatic Lubricator
Electrical Cabinet Air Cooler
Automatic Be1t Tension Adjustment Unit

Electrícal Cabinet Heat Exchanger
Balancing Stand & Arbor(OD G.W.)
Soft Jaw MachiningAttachment
Servo Moter (Workhead)
Servo Motor (X axis)
Servo Motor (Y axis)
Servo Motor (Z axis)
Hydraulíc Dresser Holder
Fixed type Dresser Holder

Grinding Wheel(OD) 
Grinding Wheel Flange (OD G.W.)
1D Spíndle (Grease Packed 8,000-50,OOORPM)

Face Grinding Attachment 
Diamond Dresser
Hydraulic Tank with Pump 
Hydraulic Oil Cooler 
Fully Enclosed Splash Guard
Scroll 3-jaw chuck wíth Back P1ate
Scroll 4-jaw chuck wíth Back P1ate

Hydraulic 3-jaw Chuck
Rotary Cylínder
Pneumatic Chuck

Standard Equipment Option Equipment X Not Applicable

• CNC Seríes
■ R1G-150CNC
■ RTG-lOOCNC
• Economícal Seríes
■ R1G-150
• NC Seríes
■ R1G-150NC