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Cnc ultra-high marble waterjet cutting machine with four-axis cutting head
four-axis dynamic cutting head is the latest achievement in scientific research of Shenyang Head Science & Technology corporation. Where the normal axes on a water jet are named X (back/forth), Y(left/right) and Z (up/down), a 5-axis system will typically add an A axis (angle from perpendicular),a 5-axis system need add an C axes (rotation around the Z-axis)
The main purpose of four-axis cutting head is to compensate tilting degrees, to make the finished edge completely vertical,which the bottom surface geometries are shifted a certain amount to produce the appropriate angle and the Z-axis remains at one height.This cutting head has already performed excellently in many cutting fields to reduce processing cost and increase working efficiency. This can be useful for applications like weld preparation where a bevel angle needs to be cut on all sides of a part that will later be welded, or for taper compensation purposes where the kerf angle is transferred to the waste material - thus eliminating the taper commonly found on water jet-cut parts.
Actually, the four-axis cutting head has the structure of five-axis, but one is manual control angle axis, the other is rotation axis and with the original three-axis, all of which we define as four-axis cutting head.
The biggest angle of inclination is 5.5 degrees and can accuratelyadjust the degree of the rotation ,the angular accuracy of rotation axis is 0.01 degrees.
Due to tilting degree compensation, the distance between cutting head and surface of workpiece need to be very accurate.The height positioning accuracy of four-axis is 0.01mm and cutting accuracy is 0.1mm, which can meet various cutting requirements.
In the marble matching process, waterjet cutting with a four-axis cutting head design is simply amazing.There is a more delightful result in marble pattern cutting . When the tilt angle of cutting head is the biggest 5.5 degree, the kerfs section will change a lot. When two pieces of cutting parts are matching together, the top surfaces have no aperture but the one of bottom surfaces is big. In this way the twice polishing producer by manual will be saved, which reduces the processing cost and enhances the working efficiency. With this improved four-axis dynamic cutting head design, it is no longer a difficult technique in marble matching. It made traditionally complex marble matching an easy job.The quality of marble pattern has had a great increase and the making of pattern has no longer been a very difficult technology at the same time.
The same methodology is also applicable in glass straight-hole drilling. As an example, when piercing holes in glass, it is not necessary to decrease the cutting speed in order to get straight holes. The ideal effect can be achieved without changing cutting speed, and that is highly beneficial!
This is the video about our machine with four axis cutting head,you can see it
http://v.youku.com/v_show/id_XMzk3NjM4NjAw.html
water jet cutting table
we can do as to customer's request ,like 2000mm*1500mm,1500mm*2500mm,3000mm*2000mm,2000mm*4000mm . structure inculdes bridge type and fly arm type ,ballscrew and guideway to drive
CNC Water Jet Cutting Table( We have two kinds of cutting table: bridge style and flying arms style )
A- Bed guarantees a best stability and no any shake or distortion ever with a high speed operation;
B- ball bearing screw and linear guide;
C- Z axis driven by electric motor;
D- easy operation and maintenance;
E- Special designed protecting system guarantees a long using life of the equipment;
F- There are 1.0mx2.0m, 2.0mx3.0m, 2.5x1.5m, 2.0mx6.0m, 1.5x2.0m, 3.0mx2.0m, 4.0x2.0m and so on for choosing.
Technical Parameters of cutting table :
Working table:2100mm×3100mm
processing dimention:2000mm×3000mm
Z axis:150mm
control accuracy:±0.01mm
cutting accuracy:±0.1mm
Re-position accuracy:±0.02mm
the tilt angle of cutting head is the biggest 5.5 degree
High pressure system
The intensifier acts as an amplifier as it converts the energy from the low pressure hydraulic fluid into ultra-high pressure water. The hydraulic system provides fluid power to a reciprocating piston in the intensifier center section. A limit switch, located at each end of the piston travel, signals the electronic controls to shift the directional control valve and reverse the piston direction.
The intensifier assembly, with a plunger on each side of the piston, generates pressure in both directions. As one side of the intensifier is in the inlet stroke, the opposite side is generating ultra-high pressure output. During the plunger inlet stroke, filtered water enters the high pressure cylinder through the check valve assembly. After the plunger reverses direction, the water is compressed and exits as ultra-high pressure water and then enters the pressure vessel(accumulator) The accumulator smoothes pressure fluctuations from the intensifier and delivers a constant and steady stream of ultra-high pressure water to the cutting tool
Main technical parameters of intensifier pump
Maximum operating pressure:380Mpa(55,000psi)
Continuous operating pressure:320-340Mpa
Max. oil discharge:90L/min
Max. water discharge:3.7l/min
Water pressure:0.3MPa
Main motor power:30kw(50Hp)
Power requirement :380V/ 50Hz
Max. diameter of orifice:0.3mm
intensifier originally imported from American company
CNC controller
run base on windows xp ,english version operation interface,mitsubishi servo motor and driver. Nc studio cutting software,industrial computer 1G memory card. hand- wheel can be chosen.
a) CNC control, apply 19 inch LCD;
b) Adopt specialized water jet cutting software, have autosave function for next operation;
c) Apply Omron brand PLC instead of relay;
d) Windows XP based, Support DXF file and any auto programming software to produce NC code
A- SOFTWARE
It runs on WINDOWS XP system and has many advanced functions such as auto-cuttingin and out, auto nesting,simulating
the track before working, calculating the cutting time and the cost;
B- Window XP waterjet soffware The design is user-friendly;
C- Pc-base name brand industrial computer, G-code style controller;
D- Simple electric design, PLC control;
E- Quickly show a tool path, avoid wrong cutting;
H- Automatic shown the length of cutting. Easy to caculate the price of cutting for customer;
G- The system can auto generate the CNC processing program;
K- AutoCAD drawing with technique data;
L- Achieve the communication between PC and CNC.
CNC four-axis cutting head water jet machine