In the field of precision machining, the micro quality of the tool edge directly determines the surface accuracy and machining efficiency of the workpiece. The micro blade grinding technology of CNC tool grinder breaks through the accuracy bottleneck of traditional grinding technology by forming and modifying the tool edge with micrometer level precision, becoming the core supporting technology for tool manufacturing. This technology is not simply about improving grinding accuracy, but through the coordination of grinding parameter optimization, tool path control, and detection technology, it achieves precise control of the micro morphology of the cutting edge. Its application value is particularly prominent in precision cutting, superhard material processing, and other scenarios.
The core of micro blade grinding technology lies in "precise and controllable micro forming". At the equipment level, CNC tool grinders need to be equipped with high-precision spindles and feed systems. Through closed-loop control of servo motors and grating rulers, the feed accuracy is controlled at the micrometer level to ensure minimal relative motion error between the grinding wheel and the tool. The selection of grinding wheels should match the requirements of micro edge machining. Usually, ultra-fine abrasive grinding wheels are used to achieve precise trimming of tool edges using the tiny cutting edges of abrasive particles, avoiding the serrated defects caused by traditional coarse-grained grinding wheels.
Parameter setting is a key guarantee for the quality of micro blade grinding. The grinding speed needs to be adjusted according to the material of the cutting tool. When machining hard alloy cutting tools, the cutting edge thermal damage can be reduced by reducing the linear speed of the grinding wheel; The feed rate is controlled in a stepped manner, with rapid prototyping in the coarse grinding stage and minimal feed rate modification of the cutting edge in the fine grinding stage to form a smooth and flat micro surface. In addition, the precise spraying of grinding fluid needs to be coordinated with the machining trajectory, which not only achieves cooling and temperature reduction, but also timely removes grinding debris to avoid debris adhesion affecting the accuracy of the cutting edge.
In specific application scenarios, micro blade grinding technology exhibits significant advantages. In precision mold processing, the use of micro edge grinding for vertical milling has extremely low blade roughness, which can effectively reduce surface texture errors of the workpiece during cutting and lower the cost of subsequent polishing processes; In the processing of titanium alloys and high-temperature alloys in the aerospace industry, micro blade treated cutting tools have higher edge strength, which can reduce edge breakage during cutting and extend tool life.
It is worth noting that micro blade grinding technology has higher requirements for detection methods, requiring the use of precision detection equipment such as laser interferometers and atomic force microscopes to monitor the micro geometric parameters of the cutting edge in real time, forming a closed-loop control of "grinding detection correction". In the future, with the integration of artificial intelligence technology and CNC grinding machines, micro blade grinding parameters will achieve adaptive optimization, further improving the accuracy and efficiency of technology applications, and promoting tool manufacturing towards higher precision.