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You will have a new understanding of the engraving machine when you finish reading it
Updatetime: 2021-07-12 17:49View:
    Engraving from the principle of processing is a combination of drilling and milling processing, engraving machine various data input mode according to the needs of ease.Computer engraving machine has laser engraving and mechanical engraving two kinds, both of which have high power and small power.Because engraving machine application range is very wide, so it is necessary to understand the appropriate engraving machine application range.Small power is only suitable for two-color board, building models, small signage, 3d crafts, etc., carving jade, metal and so on need power in 1500W.High power engraving machine can do small power engraving machine things.Suitable for large-scale cutting, relief sculpture.
    Engraving machines should be classified
    1. Small power laser engraving machine (seal engraving machine), large power or small power computer engraving machine.
    2. Large and small power computer engraving machine for architectural model.
    3, metal (mold, chapter, etc.) processing large, small power computer engraving machine (high power due to each cutting more and save time).
    4. High-power laser engraving machine (above 50W) for crystal word production, high-power mechanical engraving machine.
    5, wood, plexiglass, artificial stone and other signs production of high-power mechanical engraving machine.
    6, display, exhibition model production of large power, large surface mechanical engraving machine.
    7, ceramics, mold blank, jade, arts and crafts, decorations, pendant, electronic fixture, hand engraving high-power computer engraving machine.

    As we all know, engraving machine is a very practical carving equipment, its accuracy and performance is related to its parts, therefore, every part of the engraving machine is very important.However, carving machine parts of the importance of the degree is also primary and secondary.
    What are the most important parts of the engraving machine?
    1, the engraving head motor is very critical, because the engraving head motor is generally not under the warranty scope, and the engraving head motor is a long time continuous work, so if the engraving head motor is not good will affect the use of the engraving machine.
    2, the engraving head motor speed adjustable range, the general speed adjustable range is thousands to 30,000 RPM, if the speed is not adjustable or the speed adjustable range is small, then it means that the engraving machine application range is very limited, because different materials must use different engraving head speed.
    3. The drive controller only does the drive, and all the computing work is done by the computer. When the engraving machine is working, the computer is in a waiting state, unable to do typesetting.The single-chip microcomputer controller USES a single board machine or single-chip microcomputer control, this controller is actually a computer, so as long as the engraving machine starts to work, the computer can immediately do other typesetting work, especially for a long time when engraving, this advantage is particularly obvious.
    4, screw and guide is also an important part of the engraving machine, good screw and guide is the guarantee of the precision and performance of the engraving machine when it is used for a long time.
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    Engraving machine for precision CNC equipment, necessary daily maintenance and maintenance of the service life and accuracy of this machine is crucial, the first important point is to keep the engraving machine clean and smooth movement.Engraving machine general spindle is water-cooled spindle, so the equipment is necessary for the water pump and water due to the engraving machine working time is very long every day, so to keep the water clean and clean, must not make water shortage phenomenon of water spindle motor, summer or high working environment temperature when the timing of cooling water, in order to prevent the water temperature is too high.Winter if the temperature of the working environment of CNC engraving machine is too low to change the water in the water tank into antifreeze, to ensure the normal work of the machine.
    To introduce the engraving machine rust after the treatment
    First consider the painter urgent derusting method or physical method derusting: by craft knock, shovel, scrape, brush, sand or soft file method to eliminate surface rust, oxide scale, etc.Also can use the thing such as spade knife, scraper, pointed head hammer, steel wire brush, emery cloth, broken saw blade, also be concise method.
    If maintenance is not timely, engraving machine due to the factors of the working environment.Spindle motor is very simple rust, fine rust does not affect the normal use of spindle motor, but if not for a long time, will shorten the life of the spindle motor.
    There is also a chemical way to remove rust: you can use WD-40 to clean the lubricant.About half an hour can use cotton cloth to wipe off the stone carving machine above the rust, if the rust is fierce can get more than a few times.Wd-40 does not conduct electricity and has excellent lubrication.

    Causes of engraving machine heating:
    1. Why does engraving machine get hot?For all kinds of stepper motor, the interior is composed of iron core and winding coil.The windings have resistance, current will produce loss, the loss is proportional to the resistance and the square of the current, this is what we often say copper derivative, if the current is not the standard DC or sine wave, will also produce harmonic loss;Iron core has hysteresis eddy current effect, in the alternating magnetic field will also produce loss, its size and material, current, frequency, voltage related, this is called iron loss.
    Copper loss and iron loss will be in the form of heat, thus affecting the efficiency of the motor.The stepper motor generally pursues positioning accuracy and torque output, with low efficiency, large current and high harmonic components. The frequency of alternating current also changes with the speed, so the stepping motor generally has heating, and the situation is more serious than the general AC motor.
    2, engraving mechanical and electrical machine heating reasonable range: motor heating allowed to what extent, mainly depends on the internal insulation level of the motor.Internal insulation is damaged at high temperatures (above 130 degrees).So as long as the inside does not exceed 130 degrees, the motor will not be damaged, and the surface temperature will be below 90 degrees.Therefore, the surface temperature of stepper motor in 70-80 degrees is normal.The simple temperature measurement method is useful for the point thermometer, but also rough judgment: the hand can touch more than 1-2 seconds, not more than 60 degrees with the hand can only touch, about 70-80 degrees;A few drops of water vaporize quickly, then 90 degrees above.
    3, engraving mechanical and electrical machine heating changes with the speed of the use of constant current driving technology, the stepping motor in static and low speed, the current will maintain a relatively constant, to maintain the constant torque output.When the speed is high enough, the reverse potential inside the motor will increase, the current will gradually decrease, and the torque will also decrease.Therefore, the heat caused by copper loss is related to the speed.Static and low speed when the general high heating, high speed when the heating is low.However, the iron loss (although the proportion is small) is not the case, and the total heat of the motor is the sum of the two, so the above is a general case.
    4, the influence of tropical motor heating, although generally will not affect the life of the motor, for most customers do not need to care.However, severe fever can have some negative effects.For example, the variation of structural stress and the small change of internal air gap caused by the different thermal expansion coefficient of each part of the motor will affect the dynamic response of the motor, and the high speed will be easy to lose step.Such as some occasions do not allow excessive heat of the motor, such as medical equipment and high-precision testing equipment.Therefore, necessary control should be carried out on the heating of the motor.
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