VMC850 CNC Vertical Milling machine

1. Overall layout of machine tools VMC850 vertical machining center adopts vertical frame layout, the column is fixed on the bed, the spindle box moves up and down along the column (Z), the slide seat moves longitudinally along the bed (Y), the table moves horizontally along the slide seat (X) structure. The bed, worktable, slide seat, column, spindle box and other large parts are made of high strength cast iron materials, molding for resin sand process, two aging treatment to eliminate stress. Pro/E and Ansys optimization design are used to improve the stiffness and stability of the large and the whole machine, and effectively inhibit the deformation and vibration of the machine tool caused by cutting force. Note: XYZ axis is two roller rail.
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2. Drag the system The three axis guide rail pair adopts imported rolling linear guide rail, which has small dynamic and static friction force, high sensitivity, small vibration at high speed, no crawling at low speed, high positioning accuracy, excellent servo drive performance, and improves the accuracy and accuracy stability of the machine tool. The three axis servo motor is directly connected with the high precision ball screw through the elastic coupling, reducing the intermediate links, realizing no clearance transmission, flexible feeding, accurate positioning and high transmission accuracy. Z axis servo motor with automatic lock function, in the case of power failure, can automatically lock the motor shaft to hold tight, so that it can not rotate, play a role in safety protection. 3. The spindle group The main shaft group is produced by Taiwan professional manufacturer, with high precision and high rigidity. Bearing P4 class spindle special bearings, the whole set of spindle assembly under constant temperature conditions, after the completion of the dynamic balance correction and running test, improve the whole set of spindle service life and high reliability. The spindle can realize stepless speed regulation in its speed range, the spindle is controlled by the motor built-in encoder, which can realize the spindle orientation and rigid tapping function. 4. The knife library The robot tool library is installed on the side of the column. The cutter head is driven and positioned by the roller CAM mechanism when changing the tool. After the spindle reaches the tool change position, the manipulator tool change device (ATC) completes the knife return and knife feeding. 5. Cutting cooling system Equipped with large flow cooling pump and large capacity water tank, fully ensure the circulation cooling, cooling pump power: 0.48kW, pressure: 3bar. The headstock face is equipped with cooling nozzles, which can be either water or air cooled and can be switched at will. The cooling process can be controlled by M code or control panel. Equipped with air cleaning gun for cleaning machine tools. 6. Pneumatic system The pneumatic triplet can filter the impurities and moisture in the air source to prevent the damage and corrosion of the machine tool parts. The solenoid valve group is controlled by PLC program to ensure that the spindle loose knife, the spindle center blowing, the spindle clamping knife, the spindle air cooling and other actions can be completed quickly and accurately. 7. Lubricating system Guide rail and ball screw are automatically lubricated by centralized thin oil. Each node is equipped with quantitative oil distributor, which is timed and quantified to lubricated parts to ensure uniform lubrication of each sliding surface, effectively reduce friction resistance, improve motion accuracy, and ensure the service life of ball screw and guide rail. 8. Machine tool protection The machine adopts safety protection room, which not only prevents the splashing of coolant, but also ensures the safe operation and pleasant appearance. Each guide rail of the machine tool has a protective cover to prevent chips and coolant from entering the inside of the machine tool and prevent the guide rail and ball screw from wear and corrosion. 9. Chip removal system (optional) The Y axis split protective structure makes the iron chips produced in the processing process fall directly onto the bed, and the large inclined structure inside the bed makes the iron chips slide smoothly to the chain plate of the chain chip discharge device at the bottom of the machine tool. The chain plate is driven by the chip discharge motor, and the chips are transported to the chip discharge car. Chain chip discharging device has large conveying capacity, low noise, overload protection device, safe and reliable operation, can be used for a variety of materials of debris and coil.

Model

VMC850L

Unit

Worktable

 Worktable size 1000×500

mm
Max. Load weight 600

kg
T slot size 18×5

mm×Unit

Processing range

 Max. table travel - X-axis 800

mm
Max. slide travel - Y axis 500

mm
Max. spindle travel - Z axis 500

mm
Distance from spindle end face to worktable Max. 650

mm
Min. 150

mm
Distance from spindle center to guide rail base 560

mm

Spindle

 Taper (7:24) BT40

 
Speed range 50～8000

r/min
Max. output torque 48

N.m
Spindle motor power 7.5/11

kW
Spindle drive mode Synchronous toothed belt

 

Tool

 Tool handle model MAS403 BT40

 
Pull nail model MAS403  BT40-I

 

Feed

 Quick move X axis 24(36)

m/min
Y axis 24(36)
Z axis 24(36)
Power of three-axis drive motor（X/Y/Z） 2.3/2.3/3

kW
Torque of three-axis drive motor（X/Y/Z） 15/15/23

Nm
   Feed rate 1-20000

mm/min

Tool

 Magazine form Manipulator (HAT optional)

 
Tool selection mode Bidirectional nearest tool selection

 
Magazine capacity 24

 
Maximum tool length 300

Mm
Maximum tool weight 8

Kg
Max.cutter head diameter Full Φ78

Mm
Adjacent empty knife φ120

Mm
Tool change time (tool to tool) 1.8（Bamboo hat8S）

S

Positioning  accuracy

   JISB6336-4：2000 GB/T18400.4-2010

 
X axis 0.016 0.016

Mm
Y axis 0.012 0.012

Mm
Z axis 0.012 0.012

Mm

Repeat positioning accuracy

 X axis 0.010 0.010

Mm
Y axis 0.008 0.008

Mm
Z axis 0.008 0.008

Mm
Machine weight 4800

Kg
Total electrical capacity 20

KVA
Overall dimensions（L×W×H） 2730×2300×2550

Mm

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