1. Basic characteristics of machine tools
GMC1820 gantry machining center is based on the most popular international, advanced, flexible machine tool design concept development, suitable for aerospace, shipbuilding, power generation, military, heavy machinery, locomotives, machine tools, textile machinery, printing machinery, automotive panel molds and other industries of large-scale machining.The high strength, high rigidity design of the machine tool and the structural characteristics of the large flow chip removal channel make it particularly suitable. It is used for high-speed machining of various metal materials including titanium, tool steel and so on. in metal cutting of gantry machine tool, and fully meets the needs of CNC machining of various kinds of precision parts such as basic large parts, plates, discs, shells, dies and so on. The workpiece can finish milling, boring, drilling, reaming, rigid tapping and other processes continuously with high precision and high efficiency after one clamping, which meets the most challenging machining requirements of various industries.
2. machine tool features
High strength HT300 inoculated cast iron with resin sand moulding and reasonable rib structure are adopted in major castings, which have good rigidity and strong stability. In addition, after annealing and long-term natural aging treatment, the residual internal stress can be eliminated to the greatest extent to ensure the long-term high precision and service life of the machine. High rigid base: the internal rib height of the base adopts V-shaped structure design, which greatly improves rigidity, wide bearing surface, and maintains the best dynamic horizontal accuracy at the maximum load; the scrap groove and the base are formed in one body to strengthen the mechanical rigidity, increase the stability of the machine tool during processing, and there is no doubt of water leakage. Stepped sliding seat: widened slideway design, the center of gravity of the head is close to the center of the beam, to achieve the best kinematic accuracy and heavy cutting ability, highlighting the unique high stability.Increase the columns, beams, box-shaped reinforcement design, strengthen mechanical rigidity, effective suppression of vibration generated by processing.
C3 grade ball screw, zero backlash and high rigidity, fixed support at both ends, pre stretching. Rigid structure, good thermal stability and good accuracy. X, Y axis Taiwan silver fine P class (precision class) linear guide, Z axis hard rail, with wear-resistant high-grade fluoride resin (using the United States TURCITEB wear-resistant sheet), with low resistance, low friction coefficient and vibration damping characteristics, to ensure the whole machine moving speed, rigidity and machine accuracy. Imported bearings from Japan NSK high precision angle bearings, 4 pairs of bearings per shaft design, greatly improve the processing stability.
3. The machine tool power supply is 3_380V 50HZ of three-phase four-wire system; the allowable fluctuation value of power supply voltage: + 15%; the allowable fluctuation value of power supply frequency: + 1%. The machine tool must be grounded safely with a separate cable, and the grounding resistance should be less than 4 ohms; the gas source: 0.4-0.6 Mpa, and the ambient temperature range of the machine tool workshop should be 17-25 degrees Celsius. The daily temperature difference is within The machine tool is installed in a workshop far from the source of earthquake, heat source and heat flow, and its vibration is below 0.5G (G is gravity acceleration).
|
Item
|
Unit
|
Spec.
|
Mark
|
|
Machining range
|
Width of table
|
mm
|
1800
|
|
|
Length of table
|
mm
|
2000
|
|
|
T slot
|
|
9/28/200
|
|
|
Max. Load of table
|
kg
|
6000
|
|
|
Effective width of gantry
|
mm
|
2600
|
|
|
Max. Height of the gantry
|
mm
|
1200
|
|
|
Distance between vertical spindle to table surface
|
mm
|
200~1200
|
|
|
Table travel
|
Max. Travel of X
|
mm
|
2200
|
|
|
Max. Travel of Y
|
mm
|
2000
|
|
|
Max. Travel of Z
|
mm
|
1000
|
|
|
Spindle
|
Item
|
|
Standard (First grade synchronous belt)
|
Optional
(With ZF gear box)
|
|
Motor power
|
kW
|
18.5/22
|
18.5/22
|
|
Speed range
|
rpm
|
30-4000
|
30-4000
|
|
Rated torque
|
N.m
|
212
|
471
|
|
Max. torque
|
N.m
|
252
|
560
|
|
Max. broach
|
N
|
18000
|
18000
|
|
Table system(X)
|
Structure type
|
|
Table movement
|
|
|
Guideway type
|
|
Heavy linear guide rail pair
|
RGW65
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:3
|
|
|
Drive unit
|
|
Ball screw pair
|
R80-20K5-FDC
|
|
Saddle system(Y)
|
Structure type
|
|
Saddle movement
|
|
|
Guideway type
|
|
Heavy linear guide rail pair
|
RGW55
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:2
|
|
|
Drive unit
|
|
Ball screw pair
|
R63-12K5-FDC
|
|
Slide system(Z)
|
Structure type
|
|
Slide movement
|
|
|
Guideway type
|
|
Rectangle plastic-surface guideways
pair
|
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:2
|
|
|
Drive unit
|
|
Ball screw pair
|
R63-12K5-FDC
|
|
Rapid feed speed
|
X
|
mm/min
|
12000
|
|
|
Y
|
mm/min
|
12000
|
|
|
Z
|
mm/min
|
8000
|
|
|
Cutting feed speed range
|
X,Y
|
mm/min
|
1-4000
|
|
|
Z
|
mm/min
|
1-2000
|
|
|
Positioning accuracy of linear axis(GB/T19362.1-2003)
|
X
|
mm
|
0.035
|
Half closed-loop control
|
|
Y
|
mm
|
0.030
|
|
Z
|
mm
|
0.022
|
|
Repeat Positioning accuracy of linear
axis
|
X
|
mm
|
0.018
|
Half closed-loop control
|
|
Y
|
mm
|
0.015
|
|
Z
|
mm
|
0.012
|
|
Working accuracy
|
Fine boring surface roughness
|
|
≤Ra1.6
|
HB230~260 Steel
|
|
Fine milling surface roughness
|
|
≤Ra3.2
|
|
Working Environment
|
Temperature
|
|
0ºC-40ºC
|
|
|
Vlotage
|
V
|
380(-15%,+10%)
|
|
|
Power frequency
|
Hz
|
50±1%
|
|
|
Relative humidity
|
|
≤90%
|
|
|
Compressed air pressure
|
MPa
|
0.5~0.7
|
|
|
Cnc system
|
Model
|
|
FANUC 0i-MF
|
|
|
The total number of control axis
|
Axes
|
3
|
|
|
Linkage control axis number
|
Axes
|
3(Linear axis)
|
|
|
Tool change system
|
Taper
|
|
BT50
|
|
|
Tool magazine
|
|
arm type/24pieces
|
|
|
Max. Weight of tool
|
kg
|
25
|
|
|
Max. Length of tool
|
mm
|
350
|
|
|
Auxiliary function
|
Lubrication type of guideway pair/ball screw pair
|
|
automatic centralized lubrication
|
|
|
Operation panel
|
|
suspension type
|
|
|
Operation type of manual tool change
|
|
Control by button
|
|
|
Status indication
|
|
Three-colour warning lamp
|
|
|
Cooling type of tool/workpiece
|
|
Liquid external cooling
|
|
|
Overall dimension
|
Length
|
mm
|
7130
|
|
|
Width
|
mm
|
4380
|
|
|
Height
|
mm
|
5100
|
|
|
Machine weight (about)
|
kg
|
31000
|
|
1. Basic characteristics of machine tools
GMC1820 gantry machining center is based on the most popular international, advanced, flexible machine tool design concept development, suitable for aerospace, shipbuilding, power generation, military, heavy machinery, locomotives, machine tools, textile machinery, printing machinery, automotive panel molds and other industries of large-scale machining.The high strength, high rigidity design of the machine tool and the structural characteristics of the large flow chip removal channel make it particularly suitable. It is used for high-speed machining of various metal materials including titanium, tool steel and so on. in metal cutting of gantry machine tool, and fully meets the needs of CNC machining of various kinds of precision parts such as basic large parts, plates, discs, shells, dies and so on. The workpiece can finish milling, boring, drilling, reaming, rigid tapping and other processes continuously with high precision and high efficiency after one clamping, which meets the most challenging machining requirements of various industries.
2. machine tool features
High strength HT300 inoculated cast iron with resin sand moulding and reasonable rib structure are adopted in major castings, which have good rigidity and strong stability. In addition, after annealing and long-term natural aging treatment, the residual internal stress can be eliminated to the greatest extent to ensure the long-term high precision and service life of the machine. High rigid base: the internal rib height of the base adopts V-shaped structure design, which greatly improves rigidity, wide bearing surface, and maintains the best dynamic horizontal accuracy at the maximum load; the scrap groove and the base are formed in one body to strengthen the mechanical rigidity, increase the stability of the machine tool during processing, and there is no doubt of water leakage. Stepped sliding seat: widened slideway design, the center of gravity of the head is close to the center of the beam, to achieve the best kinematic accuracy and heavy cutting ability, highlighting the unique high stability.Increase the columns, beams, box-shaped reinforcement design, strengthen mechanical rigidity, effective suppression of vibration generated by processing.
C3 grade ball screw, zero backlash and high rigidity, fixed support at both ends, pre stretching. Rigid structure, good thermal stability and good accuracy. X, Y axis Taiwan silver fine P class (precision class) linear guide, Z axis hard rail, with wear-resistant high-grade fluoride resin (using the United States TURCITEB wear-resistant sheet), with low resistance, low friction coefficient and vibration damping characteristics, to ensure the whole machine moving speed, rigidity and machine accuracy. Imported bearings from Japan NSK high precision angle bearings, 4 pairs of bearings per shaft design, greatly improve the processing stability.
3. The machine tool power supply is 3_380V 50HZ of three-phase four-wire system; the allowable fluctuation value of power supply voltage: + 15%; the allowable fluctuation value of power supply frequency: + 1%. The machine tool must be grounded safely with a separate cable, and the grounding resistance should be less than 4 ohms; the gas source: 0.4-0.6 Mpa, and the ambient temperature range of the machine tool workshop should be 17-25 degrees Celsius. The daily temperature difference is within The machine tool is installed in a workshop far from the source of earthquake, heat source and heat flow, and its vibration is below 0.5G (G is gravity acceleration).
|
Item
|
Unit
|
Spec.
|
Mark
|
|
Machining range
|
Width of table
|
mm
|
1800
|
|
|
Length of table
|
mm
|
2000
|
|
|
T slot
|
|
9/28/200
|
|
|
Max. Load of table
|
kg
|
6000
|
|
|
Effective width of gantry
|
mm
|
2600
|
|
|
Max. Height of the gantry
|
mm
|
1200
|
|
|
Distance between vertical spindle to table surface
|
mm
|
200~1200
|
|
|
Table travel
|
Max. Travel of X
|
mm
|
2200
|
|
|
Max. Travel of Y
|
mm
|
2000
|
|
|
Max. Travel of Z
|
mm
|
1000
|
|
|
Spindle
|
Item
|
|
Standard (First grade synchronous belt)
|
Optional
(With ZF gear box)
|
|
Motor power
|
kW
|
18.5/22
|
18.5/22
|
|
Speed range
|
rpm
|
30-4000
|
30-4000
|
|
Rated torque
|
N.m
|
212
|
471
|
|
Max. torque
|
N.m
|
252
|
560
|
|
Max. broach
|
N
|
18000
|
18000
|
|
Table system(X)
|
Structure type
|
|
Table movement
|
|
|
Guideway type
|
|
Heavy linear guide rail pair
|
RGW65
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:3
|
|
|
Drive unit
|
|
Ball screw pair
|
R80-20K5-FDC
|
|
Saddle system(Y)
|
Structure type
|
|
Saddle movement
|
|
|
Guideway type
|
|
Heavy linear guide rail pair
|
RGW55
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:2
|
|
|
Drive unit
|
|
Ball screw pair
|
R63-12K5-FDC
|
|
Slide system(Z)
|
Structure type
|
|
Slide movement
|
|
|
Guideway type
|
|
Rectangle plastic-surface guideways
pair
|
|
|
Quantity of rail pair
|
set
|
2
|
|
|
Transmission form
|
|
Arc tooth belt
|
|
|
Reduction ratio
|
|
1:2
|
|
|
Drive unit
|
|
Ball screw pair
|
R63-12K5-FDC
|
|
Rapid feed speed
|
X
|
mm/min
|
12000
|
|
|
Y
|
mm/min
|
12000
|
|
|
Z
|
mm/min
|
8000
|
|
|
Cutting feed speed range
|
X,Y
|
mm/min
|
1-4000
|
|
|
Z
|
mm/min
|
1-2000
|
|
|
Positioning accuracy of linear axis(GB/T19362.1-2003)
|
X
|
mm
|
0.035
|
Half closed-loop control
|
|
Y
|
mm
|
0.030
|
|
Z
|
mm
|
0.022
|
|
Repeat Positioning accuracy of linear
axis
|
X
|
mm
|
0.018
|
Half closed-loop control
|
|
Y
|
mm
|
0.015
|
|
Z
|
mm
|
0.012
|
|
Working accuracy
|
Fine boring surface roughness
|
|
≤Ra1.6
|
HB230~260 Steel
|
|
Fine milling surface roughness
|
|
≤Ra3.2
|
|
Working Environment
|
Temperature
|
|
0ºC-40ºC
|
|
|
Vlotage
|
V
|
380(-15%,+10%)
|
|
|
Power frequency
|
Hz
|
50±1%
|
|
|
Relative humidity
|
|
≤90%
|
|
|
Compressed air pressure
|
MPa
|
0.5~0.7
|
|
|
Cnc system
|
Model
|
|
FANUC 0i-MF
|
|
|
The total number of control axis
|
Axes
|
3
|
|
|
Linkage control axis number
|
Axes
|
3(Linear axis)
|
|
|
Tool change system
|
Taper
|
|
BT50
|
|
|
Tool magazine
|
|
arm type/24pieces
|
|
|
Max. Weight of tool
|
kg
|
25
|
|
|
Max. Length of tool
|
mm
|
350
|
|
|
Auxiliary function
|
Lubrication type of guideway pair/ball screw pair
|
|
automatic centralized lubrication
|
|
|
Operation panel
|
|
suspension type
|
|
|
Operation type of manual tool change
|
|
Control by button
|
|
|
Status indication
|
|
Three-colour warning lamp
|
|
|
Cooling type of tool/workpiece
|
|
Liquid external cooling
|
|
|
Overall dimension
|
Length
|
mm
|
7130
|
|
|
Width
|
mm
|
4380
|
|
|
Height
|
mm
|
5100
|
|
|
Machine weight (about)
|
kg
|
31000
|
|
|
