Zonglan continues to be respected as an innovative eyelet machine designer, brass eyelet manufacturer and exporter.
We are proud to serve major regions of the world – particularly Europe, America and Oceania – through our distributors. Zonglan currently boasts tens of thousands of grommet machines that continue to serve our worldwide users in various industries, including sign and digital printing, draperies, aerospace, maritime industries, textiles, and more.
Zonglan gives utmost importance to Research & Development (R&D). We continue to focus and work on developing new products on a daily basis to contribute to rising industry standards, as well as on producing innovations that increase efficiency for our customers.
While our engineers work on developing smart grommet-attaching machines and use the latest technology to enable Zonglan products to be the best available, our molding department also works on producing new styles or sizes of grommets and eyelets in keeping with customer & market requirements.
It is a well-known fact that achieving impeccable results requires not only qualified grommets and machines but also that the grommet and machine match each other perfectly. In this respect, Zonglan is a total solution provider for grommet/eyelet attaching in view of its proficiency developing both the machines and the grommets/eyelets to work in flawless harmony.
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How to Analyze the Position Detection Device of a High-Speed CNC Machining Center
High-speed CNC machining centers require precise position detection systems to ensure accurate and reliable operation. The type of position detection device used depends on factors such as the machine’s design, required precision, working environment, and control method. These devices are typically categorized into several types based on their measurement principles and applications.
1. **Direct vs. Indirect Measurement**
In direct measurement, the sensor directly measures the actual displacement of the moving part. For example, a linear encoder measures linear movement, while a rotary encoder measures angular displacement. This method provides high accuracy and is commonly used in high-precision applications. Grating scales and encoders are typical examples of direct measurement devices.
On the other hand, indirect measurement involves measuring an intermediate variable, such as the rotation of a ball screw, and then calculating the corresponding linear displacement. This method relies on both the accuracy of the sensor and the precision of the machine’s transmission system. Encoders and resolvers are often used for indirect measurements in CNC machines.
2. **Incremental vs. Absolute Measurement**
Incremental measurement systems track changes in position from a reference point. Each movement generates a pulse signal, which is used to calculate the total displacement. This method is widely used in grating and incremental photoelectric encoders due to its simplicity and reliability.
In contrast, absolute measurement systems provide the exact position of the object at any given time, using a fixed reference point. Each position corresponds to a unique value, making it ideal for applications where power interruptions or system resets are common. Absolute photoelectric encoders and contact encoders are common examples of this type.
3. **Contact vs. Non-Contact Measurement**
Contact measurement involves physical interaction between the sensor and the object being measured. While this can offer high accuracy, it may be affected by mechanical deformation or vibration in high-speed environments. Common contact sensors include grating scales and contact encoders.
Non-contact measurement, on the other hand, uses optical or electromagnetic methods to detect position without physical contact. This reduces wear and tear and improves durability. A widely used non-contact device is the dual-frequency laser interferometer, which offers high precision and stability.
4. **Digital vs. Analog Measurement**
Digital measurement systems convert the measured quantity into discrete digital signals, making them easier to process and display. They are resistant to electrical interference and are commonly used in modern CNC systems. Examples include photoelectric encoders, contact encoders, and grating scales.
Analog measurement, in contrast, represents the measured quantity through continuous variables such as voltage or phase changes. While less common today, analog systems like rotary transformers are still used in certain applications due to their simplicity and cost-effectiveness.
By understanding these different types of position detection systems, operators and engineers can choose the most suitable device for their specific high-speed CNC machining needs. Whether it's for precision, speed, or reliability, the right position detection solution plays a critical role in the performance of the entire machine.
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