CNC Machining Center Motion's Different Directions

Some machining centers have begun to appear that use resultant motion in less elaborate ways. That is, these machines use the resultant motion of different elements moving in different directions to achieve the motion along X, Y or Z, but they do so within machining center designs that are considerably more like standard machines.

The traditional cnc machining center has axis motors that push in one direction or the other along X, Y and Z. In the 1990s, all of us who attend machine tool trade shows learned that this wasn’t the only way to design the machine. A variety of builders brought out "hexapod" and/or "parallel kinematic" machines in which a daddy-longlegs arrangement of linear-motion members used CNC interpolation to achieve precisely the same X-Y-Z motion as a standard machine.

These novel machining centers make for attention-grabbing live demonstrations at trade shows. In fact, these eye-catching machines began to appear at trade shows not long after the use of attractive female models at these shows began to decline—almost as if some different means of capturing attendees’ attention had to be invented. However, real-life users of these machines remain uncommon to say the least. While a machine tool buyer may notice a trade show booth because of the complex motion of one these machines, that buyer is still more likely to spend money on a machine that has a more standard design.

But now, an important development may go unnoticed beneath the presence of these more elaborate machines. Some CNC machining centers have begun to appear that use the same fundamental idea—resultant motion—in a less elaborate way. That is, these machines use the resultant motion of different elements moving in different directions to achieve the motion along X, Y or Z, but they do so within machining center designs that are considerably more like standard machines.

Here are just two examples. One is the line of "relative motion" machining centers from Olympic Seiki (represented in the United States by Vigor Machinery Company). With these machines, it is not the tool motion or table motion alone that provides the machine’s traverse; it’s the tool and table together. In the X and Z axes, the ballscrew simultaneously moves both table and tool in opposite directions. The feed rate of the tool relative to the part is the sum of the traverse rates of both elements. Ditto for the acceleration. On smaller machines in this line, the resultant acceleration is 2G. In addition to speed, another benefit may be stability. With mated elements moving in symmetry, says the company, the design of this machine favors dynamic balance.

Another machine design taking advantage of resultant motion is the "Genius 500" horizontal machining center from Cross Hüller. On this machine, the X-axis motion—that is, the side-to-side motion—comes from elements that move up and down along the Y direction. The mechanism for this is an inverted V-shaped coupler that carries the spindle. This inverted V straddles between two sets of linear motors that run up and down. When the linear motors move together at the same speed, the result is pure Y-axis motion. But when the linear motors move differently, the difference causes the coupler to pivot, providing the motion in X.

As a result, there is no need for a motor to push along the X axis on this machine. Therein lies a benefit of the design. Whether the motion is X or Y, the force of the axis motors goes along the direction of gravity, where the machine is well-supported (by the floor). Thus the machine can move the tool rapidly throughout the X-Y plane, with none of the motion of the axis motors directly producing sideways forces.

How To Design Cleverly LED Waterproof Power Supply?

In a wide range of applications of power supplies, as a professional power supply for LEDs, most of them require a certain waterproof function, and have high requirements for the level of waterproofing. Regardless of whether the requirements are waterproof, but also the ability to adapt to the ambient temperature and the operating conditions of equipment in severe weather have high requirements.
Waterproof power supply must have certain requirements for its insulation and working temperature. The working temperature of the led waterproof switching power supply is generally -40 -80 ° C (outer surface temperature of the case), the storage temperature is -40 -85 ° C, and the working humidity is 10-90% relative humidity.
LED waterproof switching power supply has great requirements for the working environment and has been widely used in daily life. So, what characteristics does it have?
1. High reliability: Especially the driving power sources like LED street lights are at high altitude, so it leads to inconvenience of maintenance, and the cost is even greater.
2. High efficiency: LED is an energy-saving product, and the efficiency of the driving power supply must be high. For the power supply, the structure placed in the led lamp is very important.
The luminous efficiency of LED will decrease with the increase of LED temperature, so the heat dissipation of LED is especially important. When the efficiency of the power supply is high, the power loss of the power supply becomes smaller, the heat generation in the LED lamp will also be reduced, and the temperature of the lamp will be reduced accordingly, which is beneficial to delaying the light decay of the LED.
3. High power: The power factor is the load requirement of the grid. Generally, there are no mandatory indicators for electrical appliances below 70 watts.
4. Driving mode: one constant voltage source provides multiple constant current sources, and each constant current source supplies power to each LED individually. Its advantage is that the combination is flexible, and the failure of all the LEDs will not affect the normal operation of other LEDs, which will be higher for cost.
The second type is direct constant current power supply, and the LEDs are operated in series or in parallel, but there is a obvious disadvantage that it is poor flexibility.
These two forms coexist for a period of time, and multiple constant current output power supply methods will be better in terms of cost and performance.
5. Surge protection function: LED's ability to resist surge is relatively poor, especially its ability to resist reverse voltage. For example, led lamps installed outdoors, due to the start-up of the grid load and the induction of lightning strikes, various surges can be invaded from the grid system, and some surges can cause damage to LEDs. Therefore, the LED drive power must have the ability to suppress the intrusion of the surge and protect the LED from damage.
6. Protection function: In addition to the normal protection function of the power supply, it is best to add negative feedback of LED temperature to the constant current output to prevent the LED temperature from becoming too high.
7. Protection: The type of the lamp is externally installed, the power supply structure should be waterproof and moisture-proof, and the shell should be resistant to sunlight.
8. The life of the drive power must be adapted to the life of the LED.
9. To meet the requirements of safety regulations and electromagnetic compatibility.
LED waterproof power supply supplies are mostly used to provide driving capabilities for various LED lamps, such as LED spotlights, LED street lights, LED underground lights, LED ceiling lights, and LED panel lights. The biggest feature of the led power supply is that it is waterproof and can be used outdoors. At the same time, it is not afraid of bad weather such as rain, fog and direct sunlight.

They all say that anime cos wigs,do you know how to distinguish them?

Cosplay is now a very popular event. Due to everyone's love for secondary animation, more and more people have joined the C circle. In order to perfectly restore their favorite anime characters, many people even spend a lot of money and time to make COS costumes and then learn the exclusive actions of anime characters. I have to say that this spirit is worthy of everyone's appreciation.

In fact, no matter what kind of anime character needs to do a lot of preparations when releasing COS, just taking the hairstyle of some anime character, it is likely that a hairstyle will take several hours or even ten hours. sort out. So, as time goes by, many people say that hair is the nemesis of anime cos wigs, so do you know how to distinguish them?

Goku's hair in Riman's "Dragon Ball" can also be regarded as one of the nemesis of COS, but don't look at Goku's hair style so free and easy, but its level is only the first level. Why do you say this way? In fact, it is not difficult for everyone to realize that this type of hairstyle for COS Goku is very simple. You only need to have longer hair and a bottle of hair spray to complete it. In anime. If you come across something like this without much technical content, you can directly define it as elementary without much thought.



Many people think that Ran Mouri's anime cos wigs is very simple, even easier than Goku's, but it is not. COS Goku is actually the simplest, because the hairstyle of Goku's anime character has basically no regularity, as long as the hair is roughly similar to the original character, no one will notice whether it is exactly the same.

However, although Ran Mouri's hair looks simpler and has only one corner, her requirements are much higher. Because the fans are paying attention to Ran Mouri COS, the first thing they pay attention to is hairstyle. Xiaolan is very famous for this feature. Therefore, compared to Goku, Ran Mouri has a certain amount of attention and attractive role in hair, and is uniformly defined as intermediate.

After reading the junior and intermediate wigs, do you really look forward to what the advanced COS nemesis looks like? In fact, Serestia Ludenburg in The Projectile Breakthrough: School of Hope and Desperate High School Students, and Giorno in Jojo's Bizarre Adventure. Chobana, Ekalem in One Piece, and Zhou Tengxiyin in Blessings to the Goddess are all advanced.

And their characters have a common feature, that is, curly hair, if it is just pure curly hair, it is nothing, but if you want to get them, it is quite difficult. So far, with the exception of Giorno. Qiao Ba has cos out of COS, the other three anime characters have almost never been out of COS.

The reason why you don’t go to COS is also very simple. Insufficient hair volume is the most important reason, so everyone says that hair is a nemesis of COS. It is still very valid.

Why Medical RFID Wristbands Are Becoming More Popular

As an important part of people's daily life, more and more hospitals are gradually adopting more intelligent and humane medical management systems and measures. Through the innovation and application of medical technology to improve the operating efficiency of hospitals, reduce errors and medical accidents caused by human negligence, and provide patients with a better medical service experience.

In modern hospital information management system, medical wristband is one of the very important information carriers. In the traditional hospitals of the past, a disposable paper wristband was usually used with handwritten text or printed barcodes to record information such as the patient's name and admission time. Medical staff can scan the barcode on the bracelet or check the information on the bracelet for identity verification.

However, traditional barcode wristbands must be identified by aligning the barcode with specific optical instruments, which has a certain impact on the efficiency of medical work. In addition, the handwritten information of the paper wristband is inevitably misjudged due to misreading due to differences in handwriting, external pollution, and naked eye recognition.

With the continuous development of the Internet of Things in recent years, RFID wristband in the medical industry has attracted the attention of hospitals in all regions and at all levels due to its many advantages such as long-distance identification, real-time identification and update of data, and simultaneous collection of multiple data.

RFID technology can not only play an effective role in the management of hospital equipment, instruments and tools. In terms of patient management, medical RFID wristbands provide great convenience for medical staff and promote the further development of hospital information.

Compared with traditional hospital wristbands, what advantages does medical RFID have?
1. Medical RFID wristbands can add, modify and delete data stored in the data countless times, which facilitates the updating of information and the use of wristbands.

2. In terms of data information reading, barcode wristbands must be scanned one-to-one through optical devices, and RFID data reading has the ability to identify long distances and simultaneously collect multiple data. As long as it is within the scope of the RFID read-write device, data can be read and written on the wristband to achieve positioning and tracking and efficient management of the patient.

3. As the traditional wristband records data by handwriting or printing barcodes, once the surface is damaged and contaminated, it will seriously affect its use. Medical RFID wristbands store patient information in the chip, even if the surface is worn, it will not affect the reading of the chip information, and the chip information can be encrypted to protect patient privacy and hospital information security.

4.In terms of product costs, with the gradual popularization of RFID technology, RFID wristbands have also dropped significantly in product costs, and their cost performance is higher.

Compared with the traditional medical wristband used in the past, the wristband using RFID technology has obvious advantages in application. With the increasing development of RFID technology and products, more RFID technology products will be applied to hospitals, and the medical industry will also make great strides on the road to informationization, bringing people a higher quality medical service experience.

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What Exactly Is A PVC Plastic Sheet of Floor Product

In daily life, PVC is a very common item,and is the abbreviation of polyvinyl chloride. It was once the world's largest general-purpose plastic and is widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, pipes, packaging films and so on.

PVC floor protection film is everywhere around us. In the process of decorating our home, walls, floors, furniture, etc. will inevitably be adhered to the gray layer, cement, and even scratched by paint or other hard objects. Some of the tiles cost nearly 10,000 yuan, and they were messed up before they were finished. Adding a layer of decorative floor protection film to the ground during decoration can prevent the above.

PVC can be used as a single layer of pvc plastic sheet, or a layer of knitted cotton can be added on the reverse side of PVC. Features: non-slip, wear-resistant, cushioning, shock absorption. PVC protective film can be used for floors, windows and doors, tiles, furniture, etc. PVC floor protection film is generally colored when it is made, red background, yellow background, white background, green background, orange background, etc., and it can print and print, and the advertising effect is excellent. The ground protection film printed with the company's LOGO is used for advertising on the construction site, which can improve the overall image of the construction site.

Decoration floor protection film has a floor protection film made of PVC + needle cotton. This type of protection film can improve the buffering performance of the protection film. Wall protection film made of PVC + pearl cotton, high quality and low price. The transparent protective film has a long service life and can be recycled 4-5 times. If you want to know more, you can consult Ouger, with a professional technical team to answer your questions about floor protective film.