The CNC internal and external cylindrical grinding machine, with its precise grinding control capability, has become a key equipment to ensure the machining quality of high-precision automotive parts. Its process adaptation and technological exploration in practice directly promote the upgrading of automotive parts manufacturing level. The core value of CNC internal and external cylindrical grinding machines in automotive parts processing is analyzed from three dimensions: practical application scenarios, process optimization paths, and technological exploration directions.

In practical applications, CNC internal and external cylindrical grinders accurately match the machining requirements of automotive core components. The main journal and connecting rod journal of automobile engine crankshafts require high roundness and cylindricity, and traditional grinding equipment is difficult to meet the accuracy and stability requirements in mass production. The CNC internal and external cylindrical grinder can complete the grinding of multiple parts of the crankshaft at once through multi station linkage grinding, effectively avoiding positioning deviation caused by multiple clamping. In the machining of gearbox gear shafts, the equipment can accurately control the grinding allowance, ensure the dimensional accuracy and surface roughness of shaft parts, and provide basic support for the meshing accuracy of gear assembly. In addition, for small precision parts such as brake system valve cores, their fine grinding ability can achieve integrated processing of complex surfaces and high-precision holes, improving the sealing performance and service life of the components.

Process optimization is the core path to improve processing efficiency and quality stability. Optimizing the grinding process based on the characteristics of mass production of automotive parts requires starting with process simplification and parameter adaptation. By integrating the grinding process, rough grinding, fine grinding, polishing and other stages are incorporated into the continuous processing flow, reducing the time loss caused by process switching; At the same time, according to the material characteristics of different components, adjust the grinding speed and feed rhythm reasonably to balance the grinding efficiency and surface quality of the parts. For example, for engine components made of high-strength alloy materials, a segmented grinding strategy is adopted to avoid part deformation caused by excessively high grinding temperatures. In addition, precise supply optimization of grinding fluid is promoted, and the temperature in the grinding area is reduced through directional spraying to minimize thermal deformation of parts, while improving the service life of grinding wheels and reducing production costs.

The direction of technological exploration focuses on improving accuracy and expanding adaptability. In terms of precision control, optimizing the motion stability of the equipment guide rail and spindle can reduce vibration interference during the grinding process and further improve the machining accuracy of parts; Explore adaptive grinding technology, adjust the processing rhythm according to the load changes during the grinding process, and ensure the consistency of accuracy in batch production. In terms of adaptability, in response to the lightweight requirements of new energy vehicle components, we explore grinding processes for new materials such as aluminum alloys and carbon fiber composite materials, optimize wheel selection and grinding parameters, and solve the problem of surface damage during the grinding process of new materials. At the same time, by optimizing the device structure, the processing adaptability of complex and irregular components is improved, and the application scenarios are expanded.

In summary, CNC internal and external cylindrical grinding machines play an important role in high-precision machining of automotive components. Through process optimization and technological exploration in practice, it can not only ensure the machining accuracy and quality stability of parts, but also improve batch production efficiency and reduce costs. In the future, with the continuous upgrading of the automotive industry, the process adaptation capability and technological level of CNC internal and external cylindrical grinding machines will be further improved, providing solid support for the high-quality development of the automotive manufacturing industry.