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DK7745 Fast Wire Cutting Machine
Introduction - The main features of DK7745 wire cutting machine tool are that it adopts a bed type cross worktable layout. The machine tool consists o
Product details
Main features of DK7745 wire cutting machine tool
This machine tool adopts a bed type cross worktable layout, which consists of a bed, worktable, wire transport system, taper wire frame, electrical control system, lubrication system, cooling system, protective cover, operating system, etc. Capable of processing all conductive objects, such as complex shaped molds, camshafts, ship, automobile, aircraft parts, and tough and difficult to process objects, and able to cut flat, inclined, and irregularly shaped workpieces on the surface. It has superior performance and low price, with a high cost performance ratio. Its characteristics are as follows:
The host adopts a fully supported machining center worktable structure with a box body, and based on CAD simulation of stress stiffness calculation, optimizes the design of reinforcement bars to supplement rigidity. X. The Y guide rail adopts Taiwan linear guide rail design, which has good self-lubricating performance, reduces static friction coefficient, effectively overcomes mechanical "crawling", and ensures high precision of the machine tool under high load. X. The Y-axis motion adopts precision grade gapless ball screw rotation. When installing the ball screw, it is pre stretched to improve transmission stiffness, eliminate thermal expansion errors, and ensure high precision. The protective cover adopts a semi enclosed structure, with a beautiful appearance and dust resistance, ensuring that the product meets environmental protection requirements. Waterproof guide wheel system effectively improves the service life of guide wheels and bearings. The control system is equipped with high-grade industrial grade host, industrial grade LCD display screen, HF programming and control software, specially developed resistance free drive control power supply, and high-sensitivity self-control micro ultra precision discharge power supply. Fully functional, stable and reliable performance, simple and convenient operation.
Composition of wire cutting machine tool
The CNC wire cutting machine tool consists of three main parts: mechanical, electrical, and working fluid systems.
machinery
The mechanical part of wire cutting machine tool is the foundation, and its accuracy directly affects the working accuracy of the machine tool, as well as the full play of electrical performance. The mechanical system consists of machine tool bed, coordinate worktable, wire transport mechanism, wire frame mechanism, taper mechanism, lubrication system, etc. The bed of a machine tool is usually a box type structure, which provides an installation platform for various components and is closely related to the accuracy of the machine tool. Coordinate workbenches are usually composed of cross drag plates, rolling guides, screw motion pairs, gear transmission mechanisms, and other parts. It mainly involves the relative motion between the electrode wire and the workpiece to complete the machining process. The wire transport mechanism is composed of a wire storage cylinder, an electric motor, a gear pair, a transmission mechanism, a reversing device, and insulation components. The electric motor and the wire storage cylinder are connected and rotated by a shaft to drive the electrode wires to move at a certain linear speed and neatly arrange the electrode wires on the wire storage cylinder. The cable rack is divided into single column cantilever and double column gantry types. The single column cantilever is divided into upper and lower arms, with the lower arm generally fixed and the upper arm movable up and down. The guide wheel is installed on the wire frame to support the motor wire. The taper mechanism can be divided into swing type and cross drag type structures. Swing type is achieved by rotating the upper and lower arms through a lever, and is generally used in large taper machines. The cross drag type is achieved by moving the electrode wire to expand and contract, and is generally suitable for small cone machines. The lubrication system is used to alleviate mechanical wear, improve mechanical efficiency, and reduce power loss. It can play a role in cooling, corrosion inhibition, vibration absorption, and noise reduction.
electrical
The electrical part includes machine tool circuits, pulse power supplies, drive power supplies, and control systems. The machine tool circuit mainly controls the operation of the wire transport motor and the working fluid pump, enabling the electrode wire to continuously cut the workpiece. The pulse power supply provides spark discharge energy between the electrode wire and the workpiece for cutting the workpiece. The driving power supply, also known as the driving circuit, consists of a pulse distributor, power amplifier circuit, power supply circuit, preamplifier circuit, and other control circuits. It is a dedicated power supply that provides power to the stepper motor, used to control the stepper motor. The control system mainly controls the movement of the worktable trailer (trajectory control) and the discharge of the pulse power supply (machining control).
Working fluid system
The working fluid system generally consists of a working fluid tank, a working fluid pump, an inlet pipe, a return pipe, a flow control valve, a filter screen cover, etc. The main function is to concentrate discharge energy, carry away discharge heat to cool electrode wires and workpieces, and eliminate erosion products.
1、 Model specifications and performance characteristics of machine tools:
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Model, specifications, and parameters of the machine tool |
Model of machine tool |
DK7745 |
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Bed frame casting |
Precision casting, high-temperature annealing, mechanical accuracy remains unchanged for a long time |
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Workbench design |
Full support design, wide spacing between XY axis support rails, good stability, and strong load-bearing capacity. |
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Worktable Schedule |
450mm×550mm |
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Worktable waterproof cover |
Non-metallic |
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Cutting workpieces with large thickness |
450mm adjustable |
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Dimension of worktable |
500mm×750mm |
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Cutting workpieces with large taper |
6 ° (achievable at 80mm) |
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Greater cutting efficiency |
130mm2/min； High speed cabinet (when Cr12 40mm thick)
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Larger cutting current |
5A |
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roughness |
Processing 40mm thick Cr12 with a roughness of ≤ 2.5μm |
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Machining accuracy |
GB7926-87 |
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Machine tool power consumption |
1.5kw |
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Electrode wire diameter |
Φ0.15～Φ0.20mm |
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Wire speed |
11m/s |
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Drive mode |
Step drive |
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control mode |
Open Loop |
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overall dimension |
1865mm×1520mm×1500mm |
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total weight of machine tool |
1400kg |
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workbenches |
Workbench size |
500mm×750mm |
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Workbench carrying capacity |
800kg |
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trip |
x-axis |
450mm |
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y-axis |
550mm |
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Z-axis |
450mm |
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auxiliary stroke |
u-axis |
±25mm |
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V axis |
±25mm |
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Screw and guide rail |
lead screw |
Precision ball screw |
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rail |
Precision V-flat guide rail |
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lathe bed |
semi-closed |
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Vertical movement distance of the spindle |
100mm～450mm |
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water tank |
High flow, atmospheric pressure water tank |
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Water tank capacity ≥ 60L |
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working fluid |
Specialized emulsion paste or water-based cutting fluid |
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Silk transportation part |
Three phase motor (Nantong micro motor) |
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Silk drum cover safety protection, silk drum blockage protection, left and right limit |
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Wire breakage protection |
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Manual handle |
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The runout of the wire storage tube is ≤ 0.02mm |
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Wire rack section |
Manual lifting (electric lifting) optional |
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2、 Main performance indicators and technical requirements for power, electrical, and system
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power supply |
380V ± 10%, 50HZ |
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AUTOCUT (interoperable with CAD) Basic software functions |
Coordinate system: absolute coordinates, incremental coordinates (relative coordinates) |
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Graphic coordinate transformation, scaling, rotation function, graphic tracking display function |
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Linear and arc interpolation function, slope processing function |
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Capable of five axis four linkage control, with the function of machining different surfaces up and down, and variable taper machining |
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Real time tracking of graphics and programs during processing, displaying processing status, processing speed, and processing time in real-time. |
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Short circuit and wire breakage handling function, power outage memory function, automatic shutdown function after processing is completed |
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Automatic transition arc function (arbitrary, corner function) |
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Equipped with reverse machining, menu technology, automatic programming, and data transmission functions |
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Real time adjustment of processing parameters during the manufacturing process |
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The configuration, composition, functions, and technical performance of CNC systems |
The hardware composition of CNC |
Domestic PC |
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128MB memory |
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40G hard drive |
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15 inch LCD display |
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Mouse and keyboard. |
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USB system interface |
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The System Composition and Operating Platform of CNC |
Supports USB |
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Operating Platform XP |
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Technical performance of CNC system |
Four linkage |
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Slope processing (out of plane processing) |
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Integrate programming and control, and perform two tasks simultaneously |
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CNC system operating environment |
Temperature: 5-40 ℃ |
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Relative humidity: 40% to 80% |
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Electrical part |
Electric control cabinet |
Reasonable layout, ventilation, dust prevention, heat dissipation, anti-interference |
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electronic component |
Long term high-temperature aging meets the needs of continuous operation of components around the clock (Siemens, Modorola). |
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Cable line |
The cable adopts moisture-proof and waterproof adapters, with good insulation, good contact between sockets and plugs, large contact capacity, easy insertion and removal, and convenient separation between the machine tool bed and the electrical cabinet. Maintenance is extremely convenient |
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Power Supply System |
We use our company's independently developed third-generation independent module professional digital pulse power supply. Compared with integrated power supplies, it has higher system integration, higher anti-interference ability, and reliable waveform transmission. |
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Power pulse |
The intelligent electrical cabinet has the function of grouping pulses and can achieve unidirectional discharge. The optimized combination of nine fully digital pulses results in more accurate and stable waveforms, high energy utilization, and low molybdenum wire loss |
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circuit design |
Adopting digital high-speed current and voltage sampling circuits, with a maximum carrying current of ≥ 5A and a unit current processing efficiency of ≥ 50m ㎡/min A， Single cutting efficiency ≥ 130m ㎡/min, commonly used cutting efficiency ≥ 80m ㎡/min. The advantage is more obvious when cutting with large thickness |
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Fault protection and warning function |
The machine tool is equipped with wire breakage and wire stroke protection functions. The main vibration power supply and drive power supply of the machine tool are equipped with light-emitting diodes, which can achieve online fault detection |
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QLCT fully connected machine tool warm reminder: Due to continuous design improvement, the above machine tool technical parameters are for reference only. If there are any changes in paint color, no further notice will be given. We apologize for any inconvenience caused and thank you for your cooperation!
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