CNC Worm Thread Grinding Machine Replacement of HJMT SK7720B

Our CNC Worm Thread Grinding Machine is a top-of-the-line replacement part for your original spare parts. This machine is designed to grind various cylindrical worms (ZA, ZN, ZI, ZK, ZC1) and trapezoidal screws. It boasts a SIEMENS 828D system that controls 6 NC axes, ensuring precise and accurate results.

Overview of CNC Worm Thread Grinding Machine

The CNC Worm Thread Grinding Machine is a precision machine that is designed to grind cylindrical worms and trapezoidal screws. It uses a diamond disc to grind the thread profiles required for the workpiece. The machine is equipped with a high-powered permanent magnet synchronous motor (PMSM) to ensure high power and low vibration. The helix angle is adjusted and locked automatically, ensuring precise and fast results. Additionally, the machine features a manual alignment device suitable for batch manufacturing, as well as a full-closed cover and an oil-mist extractor to improve the working environment.

Technical Parameters of CNC Worm Thread Grinding Machine

• Grinding accuracy for cylindrical worms: grade 4 (thread start=1-2), grade 5 (thread start≥3) by GB standard
• Grinding accuracy for trapezoidal screws: grade 6 by GB standard
• Number of programmable axes: six
• Control system: SIEMENS 828D
• Wheel spindle driven by high-powered built-in permanent magnet synchronous motor (PMSM)
• Double diamond discs for dressing the grinding wheel
• Manual alignment device for pre-cut thread match, suitable for batch manufacturing
• A full-closed cover and an oil-mist extractor provided to improve working environment

Structure of CNC Worm Thread Grinding Machine

1. Bed: The bed of the CNC worm thread grinding machine serves as the main structural base. It's typically constructed from high-grade cast iron, ensuring stability and vibration dampening during operation. This foundational element provides the necessary support for other components, contributing to the machine's overall precision and rigidity.
2. Worktable: The worktable is a critical component where the workpiece is clamped. It's designed for smooth and precise movements, either linear or rotational, to facilitate accurate positioning of the workpiece. This part is essential for the precision alignment of the workpiece with the grinding wheel.
3. Wheel Head: Housing the grinding wheel, the wheel head is a pivotal component. It's responsible for the rotation and positioning of the grinding wheel, enabling it to make contact with the workpiece. The wheel head's movement is crucial for achieving the desired grinding angle and depth.
4. Dresser: The dresser is responsible for maintaining the grinding wheel’s condition. It shapes and sharpens the wheel, ensuring it remains effective for accurate grinding. The dresser's precision is often controlled by the CNC system, making it an integral part of maintaining the machine's performance.

Working Principle of CNC Worm Thread Grinding Machine

The CNC Worm Thread Grinding Machine works by moving the workpiece and the grinding wheel. The workpiece is moved longitudinally on the Z-axis, while the grinding wheel is moved on the X-axis. The workpiece is rotated by the C-axis, and the helix angle is adjusted by the A-axis. The dresser slider is moved vertically on the V-axis and horizontally on the W-axis. The machine is equipped with a cooling and lubrication system to prevent overheating and ensure smooth operation. The control system is a SIEMENS 828D system, which controls the six NC axes, ensuring precise and accurate results.

Features of CNC Worm Thread Grinding Machine

Our CNC Worm Thread Grinding Machine is designed to grind various cylindrical worms and trapezoidal screws with precision and accuracy. It is equipped with a high-powered built-in permanent magnet synchronous motor (PMSM) for high power and low vibration. The helix angle is adjusted and locked automatically for precise and fast results. The machine is also equipped with a manual alignment device suitable for batch manufacturing and a cooling and lubrication system to prevent overheating and ensure smooth operation. A full-closed cover and an oil-mist extractor are provided to improve the working environment.

How to Operate CNC Worm Screw Grinder

Before operating the CNC Worm Screw Grinder, it is important to check all the parts and connections to make sure everything is in good condition. The workpiece should also be checked to ensure it meets the processing requirements and has no obvious defects. The grinding wheel should also be checked for cracks or wear, and the cooling and lubrication system should be checked to ensure it is working properly.

The following are the steps to operate the CNC Worm Screw Grinder:

1. Clamp the workpiece using an appropriate fixture to ensure it is securely fixed during the grinding process
2. Adjust the grinding wheel to minimize radial and end face runout as this can affect the grinding accuracy
3. Input the processing parameters such as spindle speed, feed speed, thread pitch, and helix angle. These parameters should be selected based on the material, size, and accuracy requirements of the workpiece
4. Monitor the grinding process to ensure the workpiece is being processed correctly and take corrective action if any issues arise
5. Once the grinding process is complete, turn off the machine and clean the processing environment

About Our Company

We are a professional CNC machine tool manufacturer with a team of experienced engineers and operators who are experts in CNC equipment manufacturing. We have obtained several patents and own relevant intellectual property. Our products are designed using computer-aided optimization and manufactured using full CNC processing technology, ensuring that each product meets our customers' requirements. We have gained a reputation for producing high-quality products at competitive prices, and our customer base is growing at a rate of 10 customers per month. Currently, our annual production capacity is around 80 machines, and we design and manufacture CNC worm thread grinding machines, gear shaping machines, and other specialized grinding machines. Our machines are known for their high precision, efficiency, and affordability, and we are committed to providing excellent quality and service to our customers worldwide.

If you are interested in our CNC Worm Thread Grinding Machine, please contact us to learn more about our products and services. We look forward to hearing from you!