The product features a detailed technical display, showcasing key components such as the STM32L151CCU6 single-chip microcontroller, a 3.2x2.5mm 3225 26MHz mobile phone crystal, SMD aluminum electrolytic capacitors, high-current needle probes with a 3.0mm diameter and threaded design, and a Murata L0504 common-mode inductor rated at 90Ω and 150mA. These components are essential for precision manufacturing and high-performance applications.
Injection molding machines and extruders play a vital role in the production of plastic products across the globe. The screw is a critical component in both systems, directly influencing their performance. Traditional manual methods often lead to inconsistent results, low efficiency, and subpar quality. As a result, the adoption of numerical control (NC) technology for screw processing has become a growing necessity.
Currently, specialized CNC screw milling machines are expensive and not widely adopted by users. On the other hand, economical CNC systems based on lathes with stepping motors offer lower costs but limited functionality and reliability issues during operation.
Nanjing Sikai Electronic Enterprise Co., Ltd. successfully transformed a standard lathe into a CNC screw milling machine by installing the SKY numerical control system, as requested by a Guangdong-based user. This innovative solution offers cost-effectiveness, advanced functionality, high work efficiency, and precise screw machining. It can easily handle special requirements such as variable diameter and variable pitch, including step changes and continuous variations.
The SKY CNC system features a user-friendly Chinese interface and full-screen program editing, making it highly convenient for operators. It supports the storage of up to 10,000 machining programs, ensuring reliable data management. The system uses digital AC servo motors for driving, providing ample power margin and excellent stability and reliability.
The modified machine tool incorporates a milling head mounted on the lathe’s pallet, controlled by digital AC servo motors for X and Z-axis movements. This setup enables three-axis linkage, allowing the machining of various screw shapes. The traditional tool holder is replaced with a milling head, which is directly driven by the motor through timing pulleys and belts. The X and Z axes are connected via ball screws, reducing transmission errors and simplifying the mechanical structure.
The SKY NC system employs an encoder for feedback, forming a closed-loop control system with input θj and output θ0. The high-resolution encoder ensures accurate digital pulse feedback, while dual-pulse input control enhances anti-interference capabilities. The system supports both full-closed and semi-closed loop configurations based on user needs.
Built on a general PC platform, the SKY CNC system allows for parametric programming using C language, enabling efficient automation for specific screw machining tasks. A built-in parameter programming module simplifies the process, making it accessible for operators. The system calculates spatial positions based on screw parameters and precision requirements, generating accurate NC code for machining.
This numerical control transformation has significantly improved the accuracy and consistency of screw machining, delivering substantial social and economic benefits. With many traditional screw milling machines still in use, the potential for widespread CNC upgrades is vast, offering a promising future for the industry.
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Dongguan Jingling Communication Technology Co., Ltd. , https://www.jlpcba.com