How to verify the quality of a milling cutter sharpeners after grinding?

1. Appearance and geometric dimension inspection
Visual inspection: Visually confirm that there are no cracks, burns, or residual grinding wheel marks on the surface of the ground milling cutter sharpeners to ensure its intact appearance.
Dimension measurement: Use vernier calipers, micrometers, or feeler gauges to measure key dimensions such as the outer diameter, end face, and tip radius of the cutter to ensure they meet the design tolerances.
Geometric shape verification: Check the rake angle, helix angle, and tip symmetry of the cutter teeth using an optical projector or microscope to prevent geometric deviations caused during the grinding process.
2. Detection of cutting edge sharpness and surface roughness
Sharpness evaluation: Observe the sharpness of the cutting edge using a blade microscope or electron microscope to confirm that there is no blunting or chipping.
Surface roughness measurement: Use a profilometer to measure parameters such as Ra and Rz of the ground surface to ensure that the high - precision grinding requirements are met.
Grinding wheel inspection: Check the shape, size, and bond strength of the grinding wheel used to prevent the wear of the wheel from affecting the surface quality of the cutter.
Quality threshold: Use the upper limit of roughness set according to industry specifications as the basis for a pass judgment.
3. Dynamic performance and cutting tests
Cutting test: Conduct a cutting experiment on a standard workpiece and measure the cutting force, vibration signal, and machined surface quality to verify the actual machining ability of the ground cutter.
Tool condition monitoring: Use force, vibration, or acoustic sensors to collect real - time data and use clustering or machine - learning methods to evaluate the tool condition, ensuring the stability of the cutter during the machining process.
Tool balance detection: Perform a dynamic balance test on the high - speed rotating milling cutter to prevent vibration and machining errors caused by uneven grinding.
Performance comparison: Compare the cutting parameters (such as feed rate and cutting depth) before and after grinding to confirm that grinding has improved the machining efficiency and accuracy of the cutter.
4. Quality recording and traceability
Inspection report: Generate a written report of the inspection results for appearance, dimensions, roughness, and dynamic performance, indicating the inspection instruments, measurement conditions, and pass judgment.
Batch management: Assign a unique identifier to each batch of ground cutters and record the grinding parameters, the model of the grinding wheel used, and the inspection results for subsequent traceability.
Continuous improvement: Analyze the deviations in the grinding process based on the inspection data and promptly adjust the grinding parameters or replace the grinding wheel to improve the overall grinding quality.
Enterprise standard: Follow the quality management system of Ningbo WeiHui Magnetic Industry Co., Ltd. to ensure that the grinding and inspection processes comply with the company's commitment of "technological innovation, fine quality, and integrity - based business".