Bulova VMC-4220B CNC Vertical Machining Center – Year 2014

STANDARD FEATURES:

* Fanuc OiM-D Control (Package B)

* AI APC Contour Control

* 12,000 RPM Spindle (Belt Drive)

* Powerful 20 hp (30 min) high torque spindle motor

* High Column (20.5” + 9.8”)

* Cartridge Spindle Design

* BBT, CAT40 High Precision Spindle

* 290 PSI CTS Prep Only (Full Unit Equipped is Option)

* Spindle Air Blow

* Rigid tapping

* Custom Macro B (User Definable)

* Twin Arm 24 Tool ATC

* Tool Change Time (Tool To Tool) 2.5 sec.

* Tool Change Time (Chip to Chip) 6.0 sec.

* Portable Manual pulse generator

* Program and data protection key switch

* Massive One-piece Meehanite cast iron bed

* Chip Auger

* 4th Axis Prep Only (no amplifier)

* Low friction Turcite mating way surfaces

* Double Pre-tensioned Ballscrews

* Fast 1,181 IPM Rapid Traverse rate

* Full enclosure splash guard

* Flood coolant with large coolant tank

* Work light

* Operator call lamp (red, yellow, green)

* Spindle load meter

* Assembly and operation tools

* Auto Power Off

* Heat exchanger for Electrical Cabinet

* Instruction manual, parts list, and electrical diagram

* Fanuc operator and maintenance manuals

 

VMC 4220B

SPECIFICATIONS

CAPACITY:

X axis travel 41.3 inches

Y axis travel 20.9 inches

Z axis travel 30.7 inches

Table loading area 41.3 x 20.9 inches

Allowable table load 2200 pounds

Table T Slots – width x slot spacing .708” x 3.937” – (5)

SPINDLE:

Spindle nose to table top 3.9 – 34.6 inches

Spindle Diameter 2.8”

Column to spindle center 23.2 inches

Spindle taper BBT, CAT40

Spindle speed 12,000 RPM

A.C. spindle motor (30 min.) 20 HP

Spindle torque (30 min) 142 ft-lbs.

Spindle Driving Method Belt Drive

AUTOMATIC TOOL CHANGER:

ATC Type Twin Arm Type

Number of Tools 24

Tool Shank CAT 40

Max. Tool Dia. 3.1 inches

Max tool Diameter (No Adjacent Tool) 5.9”

Max. Tool Length 9.8 inches

Max. Tool Weight 15.4 lbs.

Tool Change Time T – T 2.5 sec

Tool Change Time C – C 6.0 sec

Tool Selection Random Bi-Directional

MOTION:

X and Y axis rapid traverse rate 1,181 IPM

Z axis rapid traverse rate 1,181 IPM

Cutting feed rate 393 IPM

Slide Type Box Ways

Least command increment .001mm,

Positioning accuracy +/- .00020″ (full stroke)

Repeatability +/- .00008″

GENERAL:

Floor Space Required (W x D X H) 124.4″ x 95.7″ X 129.9”

Machine Weight 13,700 lbs.

Standard Power Source Requirement – Fanuc 205-235 Volts / 3 Phase/60HZ

Power Capacity 53 Amps Minimum

Air Source Requirement 85 – 115 PSI

CONSTRUCTION

Balanced 12,000 RPM Spindle with spindle oil cooler 6000 BTU for High Speed Machining.

Hardened and Ground C3 Double Nut Ballscrews (Ø50 mm) are pre-tensioned to minimize backlash, provide high precision movement, and reduce heat deformation on all axes.

All solid ways are coated with high grade Turcite-B. Hardened and ground slideways give an extra 40% wear resistance.

2 Solid Box Ways are on a one-piece base instead of two supporting ways connected to the main base, which provides more rigidity under heavy machining.

Main frame is made of Meehanite casting for superior rigidity

* BED, COLUMN, AND SADDLE:

The bed is a rigid one-piece casting with heavy ribbing to prevent deformation during heavy cutting. Fine grain Meehanite cast iron is used for its excellent dampening characteristics. Extra wide boxways provide excellent support for the saddle, regardless of the load distribution on the table. The table is fully supported by the saddle in all positions. There is no table overhang. The rigid box type column casting is heavily ribbed to prevent twisting or distortion.

* SPINDLE, HEADSTOCK, AND COLUMN:

The high speed, 12,000 RPM, 40 taper spindle is a true cartridge type unit supported by precision class bearings that are permanently grease lubricated. The spindle is driven by a high torque 20 HP (30 min.) A.C. motor delivering an impressive 142ft/lbs. Power is transferred through a heavy-duty cogged drive belt eliminating slippage, promoting thermal stability, and minimizing vibration. An encoder is attached to the spindle to allow rigid tapping.

* GUIDEWAYS:

Wide Box ways are used for unsurpassed long-term rigidity and accuracy. Each guideway is induction hardened and precision ground. Turcite is bonded to the mating way surfaces and then hand scraped to ensure perfect fit and tolerances. The Turcite resin with forced way lubrication provides a low friction surface and virtually eliminates guideway wear. All guideways are fully protected from chips and damage.

* OIL JACKET SPINDLE CHILLER (STANDARD):

Machine accuracy is maintained by using a refrigeration system that circulates cooled oil around the spindle reducing the thermal effects of any heat generated.

* AUTOMATIC TOOL CHANGER:

The high quality 24-position tool changer uses a fast random bi-directional twin arm with 2.5 second tool-to-tool change time, and 6 seconds chip to chip.

* BALL SCREWS AND AXIS DRIVES:

Each axis is driven by a high precision double-nut ballscrew. The ballscrews are centered between the guideways. The ballscrews are supported on both ends by angular contact thrust bearings. This double pretension design provides outstanding positioning repeatability with virtually no thermal growth. All axes have large diameter 50mm ball screws that are connected directly to oversize AC servo drive motors without gears or belts, to eliminate backlash. Each axis has a flexible coupling to protect the ball screw in the event of a sudden impact. These couplings can be quickly reset.

* PORTABLE MANUAL PULSE GENERATOR:

The hand held “Manual Pulse Generator” lets each axis move in increments of 0.0001”, 0.0010” or 0.0100” making fixture or part alignment quick and easy. The 10-foot cord gives full access to the machine and the magnetic back allows for (1) handed operation with the “MPG” being conveniently held in place on the machine table or guarding.

* PROGRAM AND DATA PROTECTION KEY SWITCH:

The keyed switch enables the protection mode for both the program and offset data. Removing the key limits access to only authorized personnel. In the unprotected position the key can not be removed and all data is available for edit.

* FULLY ENCLOSED GUARDING:

The fully enclosed guarding is made of heavy gauge sheet metal to contain both chips and coolant. The large dual sliding doors open to provide unrestricted overhead access for ease of lifting heavy fixtures or work pieces.

* CHIP DISPOSAL AND COOLANT SYSTEM:

High volume coolant system washes chips down into the front of sheet metal enclosure for chip auger evacuation. A separate pump provides flood coolant through adjustable spindle mounted nozzles.

Control Specifications – Fanuc OiM-D Conversational Control

8.4” color LCD screen

Color graphics

Simultaneous Controlled Axis

Least input Increment on X, Y, and Z is .001 mm

Least command increment on X, Y, and Z is .001mm

Inch/Metric Conversion (G20/G21)

Interlock on All Axes

Machine Lock on All Axes

Emergency Stop

Stored Stroke Check 1,2,3,

Mirror Image

Backlash Compensation

Unexpected disturbance torque detection

Stored pitch compensation

Automatic Operation (Memory)

MDI Operation

Search Function (Sequence, Program)

Program restart

Dry Run

Single Block

Buffer Register

Manual Handle Interrupt

Manual Jog Feed (Rapid, Jog, Handle)

Manual Handle Feed Rate (x1, x10, x100)

Feed Command (F Code Feedrate Direct Command)

Feedrate Override 0-200% (10% Unit)

Jog feed 0-5,000 mm/min (197 ipm)

Rapid traverse override (F0, F25%, F50%, F100%)

Override Cancel

Rapid Traverse Bell-Shaped Acceleration/Deceleration

Block Skip

Exact Stop Mode / Exact Stop (G61/G09)

Dwell (G04)

Helical Interpolation

Threading/Synchronous Feed

Manual Reference Point Return

1st Reference Point Return G28

Reference Point Return Check G27

2nd Reference Point Return G30

3rd and 4th Reference Point Return

Program stop, optional stop,end of pgm M00, M01, M02, M30

Tape Code EIA RS-244/ISO 840 (Automatic Recognition)

Optional Block Skip (9 ea)

Maximum Programmable Dimensions +/- 9999.9999” (+/- 8 digits)

Program Number O4 Digit

Absolute and Incremental Command G90/G91

Decimal Point Input

Plane Selection G17. G18. G19

Work Coordinate System Setting (G52 – G59)

Work Coordinate Preset

Additional Work Coordinate System 48 pairs

Manual Absolute “On” fixed

Programmable Data Input G10

Sub Program Call 4 Levels of NestingCustom Macro #100 to #199

Addition to Custom Macro Common Variables #500 to #999

Circlar Interpolation by radius R

Canned Cycle (G73,G74, G76, G80 ~ G89)

Optional Chamfering / Corner R

Skip Function (G31)

Automatic Coordinate System Setting

Coordinate System Rotation

Programmable Mirror Image

Single direction positioning (G60)

External Data Input (Tool Offset, message, machine zero point shift)

Cylindrical interpolation

A1 Advance Preview Control (G5.1)

Polar Coordinate Command

Miscellaneous Function (M3 digits)

Miscellaneous Function Lock

Spindle Speed Command (S5 Digits, binary output)

Spindle Speed Override (50% ~ 120%) 10% Unit

Rigid Tapping

Cutter Compensation C (G40-G42)

Tool Length Measurement

Tool Length Compensation (G43, G44, G49)

Tool Offset Amount (+/- 6 Digits)

Tool Offset Pairs (400 Pairs)

Tool Life Management

Reader/Puncher Interface RS232C

Memory Card input/output

Embedded Ethernet (100 Mbps)

Part Program Storage Length: 320M

Registered Programs 400 ea

Memory Lock

Back Ground Editing

Extended Part Program Editing (Copy, Move, Change of NC Program)

Self Diagnosis Function

History Display of Alarm and Operator Message

Help Function

Run Hour / Parts Count Display

Actual Cutting Feedrate Display

Spindle / Servo Setting Screen

Multi-language display (Selection of 5 Optional Language)

Erase CRT Screen Display (Screen Saver)

Bi-Direction Pitch Error Compensation

Tool Management Function

Protection of Data at 8-Levels

Tool Monitoring Function (HWTM – Built-on Fanuc Type)

Fanuc Manual Guide i conversational programming

Alpha i AC digital servo system with 1,000,000 pulse encoders

Full MDI keyboard

PCMCIA data card slot on left side of LCD for program input / output – up to 2GB storage

Advanced Preview Control (Look ahead of multi-blocks – 20 blocks look ahead)

Automatic Acceleration / deceleration with Bell Shaped rapid acc / dec

3 axes simultaneous control std. (4 axis opt.)

Scaling

Custom Macro B

High speed skip signal