Jinan Hongyang CNC Machinery Co., Ltd.

An Easy and Effective Method to Clean Guide Rails(2021年)

hycncrouter — 2021-08-05T18:55:39+0900

https://www.hycncrouter.com/products/cnc-router-parts/

In the daily use of engraving machine guide rails, regular thorough cleaning should be conducted. Otherwise, the guide rails will be easy to break. Thus, the cleanliness of engraving machines' guide rails has gradually become a problem that concerns many users. However, how to use easier and more effective methods to clean guide rails?

There are several points provided by HYCNC:

Precision equipment is called precision apparatus because of its high precision. They can significantly improve the efficiency and operating precision during the operation, so the cleaning of the parts of precesion machines will have great impacts on the precision of guide rails and its operation. The guide rail of engraving machines is mainly used for CNC machines and is responsible for transferring, supporting, and leading the parts to move linearly toward the given direction. The process of this operation is mainly through rolling friction. Compared with the previous sliding friction, the rolling friction can not only help the level of the guide rail's abrasion to decrease heavily,but it can also largely extend the service life of the linear guide.

As one of the core CNC router parts of the guide rail, the linear axis can improve the smoothness and accuracy of the guide rail during operation, thereby improving the positioning accuracy and product quality of the machine tool during operation. Therefore, when processing parts by using machine tools, the surface of guide rails will accumulate lots of dust and debris. If these impurities exist for a long time, they will not only generate eroded points on the surface of guide rails but also damage the equipment if the situation is serious, so the corresponding regular cleaning is very important for the guide rails of engraving machines.

One of the easy ways to clean the guide rail is to first use a dry cotton cloth to wipe the moving linear guide rail until it looks bright and clean. Then, add some lubricating oil and slowly push oil around so that the lubrication can be distributed evenly.

The functions of the guide rails of engraving machines are guidance and support. To ensure the high processing precision of machine tools, the linear guide rails must have high guiding precision and good kinetic stability. When operating the equipment, processed parts will generate a lot of corrosive dust and smoke during the process. These fumes can be deposited on the surface of the guide rails and the linear axis for a long time, and form corrosion spots on the surface of the linear axis of the guide rails, thereby shortening the service life of the equipment. In order to make machine tools work normally and stably and to ensure the quality of products, the daily maintenance for guides and linear axes must be done.

As a result, in the course of normal use, operators should use lubricants regularly and ensure every part of the engraving machine's guide rail to be well lubricated and kept in a lubricated state. By doing so, we can not only prevent the guide rail from the corrosion caused by the long-time placement but also reduce the abrasion of the guide rail. HYCNC, a professional CNC parts manufacturer, can provide you with various types of CNC router components.

The Working Principle of the Engraving Machine(2021年)

hycncrouter — 2021-08-05T18:54:57+0900

https://www.hycncrouter.com/products/cnc-driver-cnc-router-motor/

The working principle of the engraving machine is to carry out design and layout through the special engraving software configured in the computer. Normally, the computer will automatically transmit the design and layout information to the engraving machine controller. Then, the controller can transmit the information into a signal (pulse string) with the power that can drive the CNC stepper motor or servo motor and the mainframe of the engraving machine can then be controlled to generate the basic path of the engraving knives in X, Y, and Z axes.

The high-speed rotating engraving head (that is, the main shaft) on the engraving machine can cut the processing material fixed on the worktable of the host machine through the tool configured according to the processing material, and it can engrave various flat or three-dimensional relief graphics and texts designed in the computer, thereby achieving the automatic engraving.

In a word, the rack of an engraving machine is a pile of iron shelves without a soul. It is the numerical control system giving it its mind, and the CNC step driver or CNC servo driver giving it its power. Finally, the spindle motor is responsible for completing the engraving.

HYCNC, a professional CNC parts manufacturer, can provide you with various types of CNC router parts.

The Differences Between Circular Guides and Linear Guides(2021年)

hycncrouter — 2021-08-05T18:54:23+0900

https://www.hycncrouter.com/products/cnc-router-parts/

The guide rails used by an engraving machine can be classified as circular guide rails and linear guide rails according to their appearance. Circular guide rails normally have a circular appearance, while linear guide rails, also called square guide rails, have a rectangle appearance. In the field of engraving machines, square guide rails have broader use than circular ones.

The SBR series of round guide rail is a linear guide rail combined with aluminum alloy as the support and a cylindrical linear optical axis as the guide axis. It's a rolling guide rail, and with the reciprocating motion of the rolling steel ball from sliders and guides, the load platform can perform linear motion accurately along the track. Compared with the traditional guide rails of machines, the friction coefficient of rolling guide rails can reduce to the 1/50 of its original figure. Because of the reduction of the starting friction, the occurrence of ineffective movements is relatively reduced, so it can achieve an accurate feeding and positioning. However, since the circular guide rail is a series of ball-point contact, this type of CNC router parts also has disadvantages of limited areas needing support, poor rigidity, and limited load performance. It only has a good bearing capacity in the radial direction, and its axial load is relatively small.

With large friction and uniform load, square guide rail, such as the series of authenticity of silver HG, adopts the surface contact friction. It requires frequent lubrication. Linear guide rails have the features of high positional accuracy and extremely low frictional coefficient, especially the small gap between static friction and dynamic force. Even if during micro-feeding, there will be no idling skid. With linear guide rail, the woodworking engraving machines can maintain the positional accuracy of rolling friction at the level of μm and the low frictional resistance for a long time.

HYCNC, a professional CNC parts manufacturer, can provide you with various types of routerparts.

Why is the Screw Nuts More Expensive Than the Screw Rod(2021年)

hycncrouter — 2021-08-05T18:53:42+0900

https://www.hycncrouter.com/products/

Rolling screw rod is composed of the screw rod, screw nut, screw nut base, supporting base, and coupling. Its function is to transform the rotational motion into linear motion, which is the further extension and development of the screw. The important meaning of this development is to change the bearing from rolling action to sliding action. Since the screw rods normally have very little friction resistance, screw rods are broadly used in various industrial equipment and precision instruments.

Why is the screw nut more expensive than the screw rod? To answer this question, we need to first distinguish the kinds of rolling screw rods. Different kinds of screw rods have different prices, and different precision also results in different prices. As a professional manufacturer who specializes in the production of different CNC machine accessories, HYCNC, a professional CNC parts manufacturer, can provide you with various types of CNC screws and parts of CNC. And normally, the higher the precision, the higher the price. At the same time, the processing technology of screw nuts is also more complex than that of screw rods, so the price of screw nuts is more expensive.

Currently, for processing technology, the screw rod of ball screw pairs is generally divided into ground ball screws and rolled ball screws, but all screw nut raceways are ground. Consequently, if you need the rolled screw, the screw nut may have a higher price. On the current market, rolled screws are all measured in meters, while ground screws are all measured in millimeters.

What Are the Differences Between the Drivers of Engraving Machines: Servo Motor and Stepper Motors(2021年)

hycncrouter — 2021-08-05T18:53:08+0900

https://www.hycncrouter.com/products/cnc-driver-cnc-router-motor/

Let's talk about the working principle first: Stepper motor is a kind of curator that concerts electrical pulses into angular displacement. When the stepper drivers receive a pulse signal, it will drive the stepper motor to rotate a fixed angle, which is also called as "step angle", in the set direction, and its rotation is performed step by step with a fixed angle. To achieve the purpose of accurate positioning, we can control the angular displacement by controlling the number of pulses. Meanwhile, we can also control the speed and accelerated speed of the motor's rotation by controlling the impulse frequency. By doing so, we can achieve the purpose of speed regulation. However, with regard to the servo motor, its inner rotor is a permanent magnet. The driver of servo motors normally controls the UVW three-phase electricity to form an electromagnetic field, and the rotor of servo motors usually rotates under the action of the magnetic field. Moreover, as for the signal transmission of servo motors, it is motor's own encoder that feeds back signal to the driver, and the driver will then compare the feedback value with the target value and adjust the angle of the rotor's rotation. Thus, the precision of the servo motor actually depends on the precision of its encoder.

Difference 1: The Difference in Methods of Controlling

CNC stepper motor controls the angle of rotation by controlling the number of pulses, and normally one pulse corresponds to one step angle.

Servo motor controls the angle of rotation by controlling the duration of pulses.

Difference 2: The Difference in Working Equipment and Working Processes

To perform perfectly, the stepper motor needs a power supply (the required voltage is given by the driver parameters, a pulse generator (now plates are mostly used), and a stepper driver. Typically, the angle of a stepper motor is determined by its driver. For instance, when the step angle is set as 0.45°, if there is a pulse, the motor will then go 0.45°. The working flow for the stepper motor generally needs two pulses: signal pulse and directional pulse.

The power supply that servo motors need is a switch (relay switch or relay board). For servo motors, its working flow is that a power is first connected to the switch, and then it will connect to the servo motor.

Difference 3: The Difference in Low-frequency Characteristics

Stepper motor is prone to vibrate with a low frequency at low speed. The frequency of vibration and the condition of load relates to the performance of drivers, and the frequency of vibration is generally half of the motor's no-load takeoff frequency.

This low-frequency vibration determined by the working principle of the stepper motor is very disadvantageous to the normal operation of the machine. When the stepper motor works at a low speed, we generally use damping technology to overcome the low-frequency vibration, such as adding a damper to the motor, using subdivision technology on the driver, and so on.

AC servo motor normally operates stably, and it doesn't have a low-frequency vibration even if the speed is low. The system of servo motors has the function of resonance suppression, which can cover the insufficient rigidity of machines. Then, the inner system has a frequency resolution function (FFT) that can test the point of resonance of machines, which is easy to adjust the system.

Difference 4: The Difference in Torque-frequency Characteristics

The output torque of stepper motors decreases with the increase of rotation speed, and it will drop dramatically at a higher rotation speed, so its highest speed of working rotation is generally 300 - 600r/min. In contrast, AC servo motor has a constant output torque, which means that within its rated speed (which is generally around 2,000 or 3,000r/min), it can always output the rated torque, and the constant power output is above the rated speed.

Difference 5: The Difference in Overload Capacity

In general, stepper motors don't have the overload capacity, while AC servo motors have a strong overload capacity.

Because stepper motors don't have this overload capacity which can help you to overcome the inertia torque, when you choose stepper motor models, you usually need to choose the motors with large torque. However, machines don't need such large torque during normal working hours. Thus, as for the purcahse of stepper motors, there can occur situations where the torque is wasted.

Difference 6: The Difference in the Performance of Velocity Response

While stepper motor needs 200 - 400ms so as to move from the static acceleration to the working speed, AC servo system has excellent accelerating ability. For example, Panasonic MSMA400W AC servo motor costs only several seconds to accelerate from the static acceleration to its rated speed of 3,000r/min. Therefore, servo motors can be widely used for the control occasions that require quick start and stop.

HYCNC, one of the professional CNC components manufacturers, can provide quality CNC router components.

Water Pump or Chiller, Which is More Suitable for Cooling Your Spindle(2021年)

hycncrouter — 2021-08-05T18:52:31+0900

https://www.hycncrouter.com/products/cnc-water-chiller/

Recently, CNC water chillers are becoming more and more used in the field of the engraving machine spindle. In the past, most spindle customers would employ the traditional cooling method of water pump and bucket to cool the spindle. From the point of view of frequency of use, if you don't use the spindle machine quite often, you can choose the water cooling pump as your cooling system since it is more cost-effective.

However, If your machine will work for a long time, you are then recommended to purchase CNC water chillers. Let's analyze comprehensively.

1. Cost of water pump and CNC water chiller
Since water chillers belong to the category of industrial equipment, they are indeed more expensive than the traditional combination of water pumps and buckets.

2. Maintenance of water pump and CNC water chiller
Because sometimes the dirty cooling water in water pumps may cause the spindle to be blocked and burned, the traditional water pump cooling method requires labor to monitor the change of cooling water temperature and whether the cooling water is clean or not. Different from water pumps, CNC water chillers possess the functions of water flow alarm and ultra-high temperature alarm. Thus, regarding the maintenance of water chillers, you only need to do the daily maintenance.

3. Cooling effectiveness of water pump and CNC water chiller
Traditional pump cooling can't control the cooling water's temperature, and its effectiveness is also unstable. However,the advanced CNC water chillers produced by HYCNC have the functions of intelligent temperature control and manual temperature adjustment.

4. Service life of water pump and CNC water chiller
The cooling water of a traditional water cooling pump is easy to be mixed with impurities because the bucket isn't air-sealed. As a result, the water pump is not highly wearable and its rotor is easy to get burned. Compared with water pumps, not only is the water chiller highly-sealed, but it is also capable of protecting the cooling water from dust or impurities, so it's very durable.

To sum up, if you are looking for cooling systems that can work for a long time, then water chillers can win by an absolute margin.

HYCNC, one of the professional CNC components manufacturers, can provide quality CNC router parts.

How To Know The Quality Of The Spindle(2021年)

hycncrouter — 2021-08-05T18:51:57+0900

https://www.hycncrouter.com/products/air-cooled-spindle-motor/

First: Check the accuracy of the spindle motor

To fullfill the basic requirements for a constant power spindle motor, the machine should be able to work for a long time without failure, and its processing should be smooth. A simple method of checking your spindle is to shake the spindle collet with your hands and check is there any looseness.

Then, you can try to restart the spindle motor, so as to check whether the rotation of the motor is smooth and whether the knives are swaying or vibrating. If so, the motor is then proved to be not precise enough.

After that, listen to the voice generated by the rotation of the spindle and check whether the voice is delicate. If it's loud and there is jarring noise or even the sound of broken tiles, the precision of the main shaft bearing or the installation is poor.

Second: Check the strength of the spindle motor

The main factor affecting the strength of the spindle is the power of spindle motors. Only high power can guarantee the strength to satisfy the requirement for processing wooden products.

When you check the strength of a motor, you can listen to the voice of the spindle motor's operation. Except for abnormal sound, the louder the sound of wind and force generated by the operation of the spindle, the larger the power. The greater the power of the spindle, the larger the volume of the motor.

Third: Check the running speed of the spindle motor

For seeking efficiency, the speed should be as fast as possible within the limits of strength, such as high speed spindle motors. However, in consideration of the machine's service life, it is better not to let the machine work at full capacity the whole time.

Fourth: Check the wear and tear of the spindle motor

This factor is mainly determined by the processing intensity and the working time of the spindle motor. As for the check in this part, you can test the surface temperature of the spindle motor. If the surface temperature of the spindle motor increases faster and faster and the terminal temperature is very high, the precision or heat dissipation of the spindle motor is poor. In this case, the spindle may be damaged of the motor continues working. Therefore, when choosing motors, the cooling method of the spindle motor should be considered fully. On the current market, available motorized motors mainly use water-cooled and air-cooled spindle motor, and water-cooled motor tools have more reliable cooling methods and effectiveness.

HYCNC, one of the professional CNC components manufacturers, can provide quality CNC machine components.

Spindle Motor Maintenance and Protection(2021年)

hycncrouter — 2021-08-05T18:51:26+0900

https://www.hycncrouter.com/products/er-collet-nuts/

HYCNC, one of the professional CNC components manufacturers, can provide quality CNC machine components.

Due to the factors of the working environment, the spindle motor is the largest equipment accessory in contact with processed work pieces and scraps, and the performance of the spindle motor also greatly affects the processing crafts. Therefore, the spindle motor must be maintained and protected during daily production and processing.

(1) After daily working, you need to clean up the router spindle motor. If this habit is formed, the most important maintenance work of the spindle motor will be done!

(2) After daily working, you need to aslo use vacuum cleaner to clean up waste debris on the spindle head and tail, to prevent waste debris from accumulating, to avoid waste debris entering into the bearing and accelerate the loss of the bearing, and to avoid waste debris entering into spindle tail, causing the motor to be short-circuited and burned.

(3) When replacing the router carving bit, the operator must disassemble the ER collect, and ER spring. It is forbidden to directly plug and unplug the bit!

(4) After disassembling the bit, clean up the ER collect and ER spring. If pay attention to this detail well, the lifespan of your spindle motor can be greatly extended!

(5) After turning the motor on, the operator must check the cooling water flow of the motor,

Check whether the water pump is working properly.

Check whether the cooling water is contaminated by scale and microorganisms, and water must clean and pure.

Check whether the water pipe is normal, and the cooling water must circulate normally!

If there is no cooling water, it is then forbidden to start the spindle motor!

(6) Be sure to use the spindle motor according to the specification!

In addition to the above regulations, operators are also prohibited from operating without training. When the spindle motor fails, do not disassemble it. You should contact the professional manufacturer for maintenance and troubleshooting in time.