HOMMA HM-8.0/1 0.0GTN CNC Double Column Type Vertical Turning Lathe

Homma 10.0GTN CNC Turn Miller
YEAR 2011
Fanuc-30i MODEL A
Gantry Width:10,000mm
Max Work dia:10,000mm height:7,200mm
Column height:6,500mm
X:15,000mm Y:11,300mm Z:3,000mm W:4,200mm
Max work weight:250,000kg
Table dia:8,000mm
ATC: BT60x10, BT50x110
Table:0.1～20min
Main spindle：10～1600min
Machine weight:700t Height:16.000mm from the floor

Features
This Double Column Type Vertical Turning Lathe is manufactured by abundant HOMMA’s experience of large size machine tool engineering technologies which based on ideas and know-howc of hi-productive machining for iarge size component parts.

1. Major components — manufacturing and material

Double column hosing — Consists of both left and right side column and
beam betveen columns, columns and beam are firmly connected by bolts.
Columns: Weldment of steel plate (JIS SS400. annealing of welding stress) Box shape construction Beam: Same as columns
Bed Weldment of steel plate (JIS) SS4OO. annealing of welding stress) 3-pieces construction Table Castings – 1 piece construction (JIS FC3OO. annealing of casting stress)
Takes box shape section and radial ribs are arranged from table center
Cross slide: Body portion — Weldment of steel plate (JIS SS400, annnealing of welding stress)
Box shape construction
Saddle guide rail portion — Castings (JIS FC300, annealing of casting stress)
Saddle: Castings (JIS FC300, annealing of casting stress)
Ram: Weldment of steel plate (JIS SS400, annealing of welding stress)

2. Table

Hi-rigidity, Hi-precision — Center double row roller bearing, single thrust ball bearing
— Peripheral thrust roller bearing are used
Powerfui, Smooth drive — AC 100kw x 2 units motor with 2range gear orive
AU drive gears are heat treated and ground finish

3. Ram and Ram head

Ram takes 500mm dimension of section and 4-faces of ram are guided by
Tercite B coated face with precision scraping, therefore hi-rigidity and precise movement is assured.
Ram head takes liner bearings between upper face of cross slide guide face and contacts to front and
lower face of cross slide guide face by Tercite B coated face with precision scraping, therefore
hi-rigidity and precise movement is assured.

4. Cross rail
Cioss rail takes enough dimension of contact face to columns
(width ot height and depth of front-rear direction) , therefore hi-rigidity and stability is assured. Compensating function of deflection for span: Wedge blocks are mounted by equal distance space between Cross rail body portion (Weldment of steel plate) and Saddle guide rail portion (Castings)

Major specifications

1. Workpiece capacity

Distance between columns/10.000mm
Max, turning diameter/010.000mm
Max ,turning height—distance between table upper face and bite holder lower face/6.500mm
(at standard bite holder length 350mm)
Max, workpiece weight an table/200.000kg

2. Table

Table diameter/08.000mm
Table drive motor/AG200kw (AC100kw x 2units)
Table speed (2 range gear drive)/0.1-30rpm
Low range: 01-3.3-10rpm
High range: 0.3•10•30rpm
Max. table drive torque (at 3.3rpm)/578.4g7N-m
Table support bearings/
Center: Double rows cylindrical roller bearing,
Single thrust ball bearing
Peripheral: Cylindrical roller bearing
Table lubrication/ Enforced lubrication with oil controller
Table chucking type/ Independent jaws — 8 jaw units

3.Ram, Ram head

Type/ Square section type ram 500 x 500mm
Bite holder clamping/ Pull stud drawing in — by disc spnng
Clamping force! 23.000kg
Bite holder unclamping/ Hydraulic cylinder

Bite holder positioning/ Curvic coupling
Bite shank size/ 40 x 40mm square
Bite overhang / From ram center line: 350mm
From ram lower face: 400mm

Max, ram cutting force
(at 6-0.1mm, Tool and ram overhang total 1 500mm)/ 70.000N-m

Ram head L-R movement stroke (X axis)/ -200-5.800mm
Ram U-D movement stroke (Z axis)/ 3500mm
Ram head feed speed (X axis)/ 0,01-500mm/min
Ram feed speed (Z axis)/ 0.01-500mm/min
Ram head rapid feed speed (X axis)/ g.000mm/min
Ram rapid feed feed spaed (Z axis)/ 6.000mm/min
Ram head feed driv6/ AC cervo motor and Bail screw
Ram feed drive/ AC servo motor and Ball screw of L and R -2 units
Ram feed drive control/ Tandem control of feed drive for L and R side
Ram weight balancing/ Hydraulic counter balancing of L and R side
Ram head, Ram positioning control/ Closed loop control by
Optical scale feedback (HEIDEN HAIN)

4. Cross rail

Up and down movement stroke (A axis)/ 4.000mm
Feed speed (A axis)/ 1-1.000mm/min
Rapid feed speed (A axis)/ 1.000mm/min
Feed drive (A axis)/ AC servo motor and Ball screw of L and
R -2 units

Feed drive control/ Synchronous control of L and R
Weight balancing/ Hydraulic counter balancing of L and R side
Clamping type/ Hydraulic-auto, clamping force 15ton x 2
Positioning control/ Closed loop control by Optical scale feedback
(HEIDEN HAIN)

5. ATC Unit
Arranged at front side of right sida column. Rotary type
Number of bite holder storage/ 6 units

6. Tool point checking Unit
Arranged at cross rail lett side, Touch probe type
Function/ Checking and compensating of X, Z axis
Checking unit/ 0.001mm
Touch probe/ Metrol I-J4A

7. CNC Unit
Fanuc 31i-B X. Zm, Zs, Am, As of 5 axis control

8. Operating platform, Control panel
Arranged at front of right side column
Function of movement/ Moving up-down, forward- retract by electric motors
Control panel/ Pendant type: 1 unit with monitoring display for working area
Standing type on operating platform: 1unit with monitoring
display for working area