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STO ENGINEERING GMBH
ADD: AM WINGERSBUCKEL16,
TEL: + 49 6068 759 90 90
FAX: + 49 6068 759 90 91
JINAN STO MACHINERY
ADD: DOUGOU OFFICE,
DISTRICT, JINAN, SHANDONG,
TEL: + 86 531 8896 3393
FAX: + 86 531 8896 3393
STO MEXICO S DE RL DE
ADD: CUARTA CALLE #114, COI.
LEON XIII, GUADALUPE, NUEVO
LEON, MEXICO,CP. 67210
TEL: + 52 81 18780286
It is designed for processing the insulating components,the wood board and paperboard laminated for the large-scale transformers as a CNC equipment.With the functions of automatic changing tools, fixing work-piece by vacuum adsorption and to make the work-piece's drawing by operator through computer, it is really to achieve to a fully automatic operation from design drawings to the processing of forming.
II、The specifications and technical parameters
1、The size of working table 3300 mm×3300mm
2、The effective processing size 3300 mm×3300mm×120mm
3、The load –bearing 4800kg
4、The rpm of high-speed spindle 1800-12000r/min
5、The Max.power of spindle 15kw
6、The spindle taper 7:24
7、The stroke X=3300mm；Y=3300mm；Z=280mm
8、The speed of the cutter's fast moving : X.Y directions ：0～20m/min Z director： 0～5m/min
9、The processing speed 0～6m/min
10、One time programming, and to complete by multi-times circulation.
11、The accuracy required：
1）、The roughness of the processing surface：Ra 6.3
2）The positioning accuracy：≤0.05mm
3）、The repeat positioning accuracy：≤0.025mm
12、The conditions required for installing at factory：
1）．The environmental conditions: The ambient temp. ：-5℃～40℃The relative humidity ：≤95%
2）．The power supply: three-phrase five wire system. 380V（±10%），50Hz
III、An overview of composition, structure and performance for the equipment.
1、Composition：bed-plate、working table、mobile gantry、cantilever vertical spindle、Tools changer device、vacuum absorption system、dust collecting system、Lubrication system、cooling system、pneumatic system and CNC system,etc.
2、The structure and performance
2.1、The bed-plate：Steel welding and assembly, to fixed the working table and the mobile gantry by adjusting the shims on the ground, on which the leading screw, guide rail and servo motor of Y axis are installed
2.2、The working table：It includes pedestal, platen, vacuum tubes and joint. The pedestal is made by steel weldments which is fixed on the bed-plate. The platen is made by high density phenolic plates and fastened on the pedestal by screws. There are 9 vacuum joints under the pedestal,which is connected to the vacuum system with vacuum tubes, hoses,etc.
2.3、The mobile gantry is made by steel plate welding and assembly. Its shape looks like the "gate". There is a beam on the top, on which are installed X-axis lead screw,guide rail, servo motor,etc.. The lower two ends are fixed with screws and connected to the supporting legs that is in the base of the Y-axis guide rail and connected to the Y-axis ' lead screw.
2.4、The cantilever vertical spindle: The big slide plate body is installed on the guide rail of the beam the mobile gantry connected by screws with the X-axis' lead screw. The small slide plate is mounted on the guild rail of the big slide plate connected to the lead screw on the big slide plate by screws,this lead screw is driven by a servo motor and pulleys to reach the Z-axis motion. The small slide plate has high speed spindle, high speed motor,cylinder,etc.. When changing tool, the spindle rises, the X-axis moves to the changing position. And the spindle rotates vertically with the working table without any vibration.
2.5、The tool changer device: A tool changer is installed in the left side of the gantry's frame with the disc of 10 tool hole locations. The changing is realized through the motor selector
2.6、The vacuum absorption system includes vacuum pump, vacuum pipeline, vacuum pressure gauge and vacuum chuck. The work-piece is on the vacuum chuck. The number,size and shape of the chuck is depend on the work-piece's size. The chuck is adsorbed the work-piece by the negative pressure through a vacuum pump
2.7、The dust collecting system includes air blower, dust collecting hose, a filtering bag, dust pocket, sealed curtain ,etc.. Around the main spindle with a sealing curtain of a lateral suction hole, the cutting dust with the blower suction into the vacuum hose, and finally falls into the dust pocket.
2.8、The lubrication system includes a lubricating pump, filter, oil separator, high pressure hose,fittings, etc.. The lubricating pump can fill the lead screws and guild rails of X,Y and Z directions with lubricating oil in the concentrated, timing and quantitative ways
2.9、The cooling system includes cooler, cooling hose, fitting,etc. for cooling in case of the spindle overheating and damaged
2.10、The pneumatic system consists of combined filtration pressure regulating valve, pressure reducing valve, reversing valve, precision filter, throttle valve, cylinder, etc., which is to complete balance of the weight of the shaft, main shaft blowing and unloading tools action
2.11、The CNC digital control system is adopted the famous CNC system in China, configurated the high performance computer to realize equipment's biaxial half linkage with the functions of tool compensation, fault diagnosis, recording, monitoring, alarm, etc. as well as RS-232 interface and USB interface. The data processing system is for human-computer interface, and the language can be switched into Chinese or English with 8.4 inches display. The membrane keyboard is put to use in this system.
The control system with the integration of CAD/CAM digital machining programming software ,by which CAD layer file of standard graphics drawn can be converted to ISO machine processing code and transmit to the control system to process automatically. And it also has the functions of zoom and measurement online. The electric hand wheel can be used to realize manual positioning accurately