High Precision Cnc Vertical Milling Machine Chinese Machining Center VMC855 Metal Milling Machine
The whole structure is made of high toughness and high grade cast iron. After high efficiency annealing, the internal stress of the material can be effectively eliminated to ensure the best accuracy, stability and durability. The Y axis of the base is designed for the structure of the two-rail rail, the wire gauge is 850mm, and the support column of the track surface has good stability and rigidity, which is of good quality for the mold manufacturing of general processing. The counterweight system is equipped with the track of counterweight block, so that the spindle head can obtain support when it moves up and down, and can effectively buckle the machining problem caused by vibration, ensuring the accuracy is stable. Pillar to big "people" word design of large span, high rigidity and high stability, cooperate with Zhi solid stable base link, more show the accuracy and precision of processing, can achieve perfect requirements. The saddle and the table are double box design, which can reduce the vibration during processing, so as to ensure the processing accuracy.
| Item |
unit |
VMC850 |
| operating range |
| X-axis travel (left and right) |
mm |
800 |
| Y-axis travel (front and rear) |
mm |
550 |
| Z-axis travel (up and down) |
mm |
550 |
| Distance from worktable to spindle end face |
mm |
110-610 |
| Distance from the front end of column to the center of main shaft |
mm |
610 |
| Workbench |
| Table area (L * W) |
mm |
1000*550 |
| maximum load |
kg |
500 |
| T-groove (width * spacing * number of grooves) |
mm |
18T*90*5 |
| X / Y / Z axis rapid feed |
m/min |
48*48*48 |
| Spindle specification |
| Spindle speed |
rpm |
8000/10000 |
| Taper hole form and installation size |
kg |
BT40∮150(external diameter) |
| Transmission mode (1:1) |
mm |
Belt |
| Recommended motor parameters for spindle |
kW |
7.5 |
| Accuracy (x / Y / z) |
| positioning accuracy |
mm |
±0.008/300 |
| Repeated positioning accuracy |
mm |
±0.005/300 |
| Other information |
| Three axis power |
kw |
2*2*2 |
| system |
|
FANUC / Siemens 828D |
| Tool magazine |
T |
24 |
| Machine size floor space (L * w * h) |
mm |
2600*2350*2700
|
| Pressure source |
kg/cm² |
6-7 |
| Power capacity |
Kva |
20 |
| machine weight |
kg |
5500 |
II. Structural performance of machine tool
1. Fuselage design
The fuselage and saddle are reinforced by mountain shaped ribs, with the shortest force streamline, ensuring the best rigidity of the fuselage.
Based on the excellent engineering design, the stiffeners of the base and column of the machining center can resist the torsion and damping, and transfer the cutting vibration to non
Cutting area. The column is designed with torque tube, which can provide excellent rigidity, bending and torsion resistance Ultra wide base design,
At the same time, lower the center of gravity of the base and adjust the center of gravity of the machine tool to the best stable height. The span at the bottom of the column is widened to improve the stability of the machine tool.
2. spindle head
The contact length ratio between the main shaft and the column is appropriate to provide stable support for the main shaft. Independent cooling system is built in the spindle head to stabilize the spindle continuously
The head heat is in a reasonable range, which reduces the thermal extension of the spindle and ensures the machining accuracy.
3. counterweight
In response to the processing requirements of different models, the following counterweight methods are adopted:
Counterweight: low failure rate and long service life;
Nitrogen counterweight: rapid action, no noise, greatly improved processing accuracy, increased machine life;
No counterweight: in order to meet the requirements of high speed and high sensitivity processing, the machine tool adopts the method of no counterweight, and enhances the requirements of servo motor and screw,
Z-axis with brake, to ensure the accuracy of the machine tool is stable and lasting, and increase the service life.
4. screw rod
It adopts imported grinding level pre drawn double nut screw rod to eliminate reverse clearance. After heat treatment, it has high rigidity, wear resistance, torsion resistance and long service life, which guarantees high machining accuracy of the machine.
5. AC servo motor
Adopt original imported from Japan, super high performance servo motor, provide stronger power when heavy cutting.
In the case of low feed, high torque can still be maintained.
Higher than 10000 (pixel) resolution and closed-loop position feedback ensure high accuracy.
High quality coupling ensures that the screw rod moves with the axis of the motor.
6. Lubrication system
The whole machine adopts a positive displacement lubrication system and a de pressurized oil pump, with stable pressure and flow, which effectively transports the oil to each lubrication point and provides uniform forced lubrication for each slide surface, so as to ensure the accuracy and service life of the machine tool.
Chip remover system
III. functions of CNC system
CNC system is Mitsubishi or FANUC system. Equipped with RS232C interface, with data transmission function.
Three axis simultaneous movement
Minimum instruction unit: 0.001mm
Fast displacement speed adjustment
Feed rate adjustment
Suspend
Automatic origin reset G28
Second origin reset G30
Hand artery wave generator
Workpiece coordinate system G54-G59
Drilling fixed cycle G73, G76, g81-g89 / g80
Rigid tapping g84, G74
Air run
Emergency stop
MDI function
Selective single node skip
Single section implementation
Program suspension
Manual control function: manual rapid feed, inching feed, hand wheel feed
Tool length correction G43, g44 / G49
Tool radius correction G41, G42 / G40
Memory compensation of pitch error
Back gap correction
Arc interpolation
Linear interpolation
Screw interpolation
Search for program number and serial number
Sub process call
Conversion of public and British system
Transmission interface, DNC capacity
Different alarm display
Ladder diagram display
Macro programs and variables
Mirror function
Simple program graphic display function
NC control language: Chinese, English, Japanese and other five languages are optional
Monitoring function: full coordinate display, spindle speed display, spindle load display, PLC ladder circuit monitoring
Protection function: over travel protection, overload protection, interlock function.
IV. attached data
Accuracy inspection table
A set of instructions for Mitsubishi or FANUC
A set of Chinese operation instructions
V. installation and commissioning
1. Please install the three-phase 380V power supply, 50Hz power unit and suggest to attach the voltage regulator.
2. After the equipment arrives at the factory, open the box together with our representative for inspection. If any damage or shortage is found, please inform our company immediately.
3. After the arrival of the goods, your company shall first carry out mechanical positioning, horizontal rough adjustment and other work, and then the supplier shall install fine adjustment and training, and your company shall inform our company to send personnel at least 7 days in advance.
4. Please assist our installation and commissioning personnel to arrange accommodation, meals and transportation,
5. Please designate the operator and maintenance personnel of the machine, and assign special personnel to assist in the installation and commissioning of the machine.
6. After the acceptance of the whole machine, your company shall sign the acceptance certificate of installation and debugging in real time, in duplicate, one for each party.
Our main products :
* Servo Mid-speed WEDM machine
* Stepper medium speed wire cutting machine
* High efficiency fast Wire cutting
* CNC drilling machine
* Drilling EDM
* EDM molding machina
* Grinding machine
* Turret milling machine
* CNC drilling and milling machine
* CNC engraving and milling machine
* Vertical machining center
All the above products have passed CE, SGS certificates.
Our Strength:
* Over 12 years manufacturing experience in CNC lathe machine.
* The company abides by the concept of "providing high-quality,stable and cost-effective products and good services to the clients by relying on advanced and reliable technology,
* Always adheres to a large amount of research and development investment and continuous engineering improvement
* Longkai EDM machines are with high cutting accuracy, high cutting speed, high surface finish and high stability.
* We have always been in the leading position of the reciprocating wire cutting machine, electrical processing power and control technology.
After-sale Services:
Warranty is one year.
We would offer the parts (quality problem) free of charge during this period, freight collect.
Audited Supplier 
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