Some knowledge about CNC router machine

With the development of science and technology, to continuously introduce advanced technology, technology applications in various industries, make industry technology, cost reduction, cost performance.The use of engraving machine from the developed to the present, already has more than 10 years, the technology is also in constant ascension.Applied the laser instrument laser engraving machine, to produce more rapid operation of the machine.As the core of the engraving machine technology, numerical control technology, this technology is to make the engraving machine can complete all kinds of luxuriant sculpture.CNC router machine how to work?Why can be carved according to certain pattern?Although these for purchase of engraving machine, is not important things, but also can know.
CNC router machine is a kind of a program control system of machine tool automation, can according to the program that has been programmed, the machine movement and machining parts.Different kinds of CNC router machine, the requirements of sensor is endless also and same, in general, large-scale machine tools require high response speed, medium and high precision nc machine tools is given priority to with required accuracy., of course, in order to make all types of engraving machine can work fast and well, single, the renewal of the numerical control technology can’t meet, using a laser apparatus in the engraving machine, this is to make various types of engraving machine work more well, sets up precision, speed is not.
Because of high precision, high speed, high efficiency and safe and reliable characteristics, the manufacturing technology and equipment update, the nc machine tools is rapidly gained popularity in the enterprise.Nc machine tool is a kind of a program control system of machine tool automation, can according to the program that has been programmed, the machine movement and machining parts.It combines mechanical, automation, computer, measurement, the latest technology such as microelectronics, using a variety of sensors.The performance of the CNC router machine has made some had nothing to do with machine tool industry are in love with the machine, and so has a variety of new applications — advertising engraving machine, woodworking engraving machine, stone engraving machine, embossing, inside carving materials.He said some knowledge of the sensor under below.
1 sensor profile
Sensor is a kind of can feel the provisions is measured, and convert the available output signal according to certain rules of device or devices, the input signal (measured) tend to be power, output signal are often easy to processing power, such as voltage, etc.
Sensor is a lot of more phyletic, classification standard, the term is different also, common resistive sensors, inductive sensors, capacitive sensors, temperature sensors, piezoelectric sensors, hall sensor, thermocouple sensor, photoelectric sensor, digital position sensor, etc.In nc machine tools are mainly on the application of sensor, close to switches, photoelectric encoder, linear grating temperature sensors, hall sensor, current sensor, voltage sensor, pressure sensor, liquid level sensor, rotating transformer, inductosyn, speed sensor and so on, mainly used to detect the location, linear displacement and angular displacement, velocity, pressure, temperature, etc.Sensor applications for CNC router machine can used a computer to design data to carving festival, then operate.It also makes engraving machine one more title, computer engraving machine.
2 nc machine tools claim to the sensor
(1) high reliability and strong anti-interference;
(2) meet the requirements of precision and speed;
(3) use convenient maintenance, suitable for machine tool operation environment;
(4) the cost is low.
Different kinds of CNC machine tools, the requirements of sensor is endless also and same, in general, large-scale machine tools require high response speed, medium and high precision nc machine tools is given priority to with required accuracy.Of course, with the development of science and technology, this is not so.Medium and small type of engraving machine, if the configuration to keep up with, although the price will be much higher, but the relatively large number of engraving machine is cheaper, is to achieve a certain degree of speed and precision.So, if you want to buy a high-performance advertising engraving machine, not necessarily want to buy a large number of, also can choose small models, then configure good engraving machine.
3 displacement detection
Displacement detection sensors are mainly pulse encoder, linear grating, rotating transformer, inductosyn, etc.
3.1 the application of pulse encoder
Pulse encoder is a kind of angular displacement sensor (speed), it can mechanical Angle into electrical impulses.Can be divided into the photoelectric pulse encoder, contact and electromagnetic three, among them, the photoelectric application more.
X axis and Z axis end is equipped with photoelectric encoder, respectively used for angular displacement measurement and digital tachometer, angular displacement can indirectly reflect the dragging plate through screw pitch or head straight line displacement.
3.2 the application of linear grating
Linear grating is produced by using the optical transmission and reflection phenomenon, commonly used in displacement measurement, high resolution, measurement accuracy is higher than photoelectric encoder, adapted to the dynamic measurement.
In feed drive, the grating ruler and fixed on the bed, its produce pulse signal directly reflect the actual location of the carriage.Using grating detection workbench position servo system is fully closed loop control system.
3.3 the application of rotating transformer

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