Leveraging digital control and precision mechanical structures, CNC double disc grinding machines serve as core equipment ensuring high precision in batch processing. Their accuracy capabilities span multidimensional metrics including dimensional tolerances and geometric tolerances, fulfilling diverse requirements from general precision machining to high-end precision manufacturing. They represent a vital safeguard for precision and efficiency in mechanical processing.
Outstanding core geometric accuracy performance. Regarding parallelism, CNC double disc grinding machines employ dual-spindle synchronous drive and laser-calibrated parallelism control technology to maintain parallelism error between workpiece faces within 0.001-0.003mm. For thin-section components and precision bearing rings, ultra-high accuracy of 0.0005mm is achievable. Flatness, a critical metric, is achieved through ultra-hard grinding wheel precision dressing and the CNC system's feed compensation function. Post-processing, workpiece end-face flatness reaches 0.0008-0.002mm, with surface roughness Ra stably controlled at 0.02-0.2μm, meeting functional requirements for sealing and assembly in precision components.
Dimensional tolerances are precisely controlled. The CNC system's closed-loop control enables micron-level adjustment of grinding depth. For different materials (steel, ceramics, cemented carbide), dimensional tolerances typically achieve IT4-IT6 grades, with single-piece dimensional repeatability ≤±0.002mm. In batch production, the process database and automatic compensation algorithms ensure dimensional consistency across multiple batches, reducing tolerance fluctuations to within 0.001mm. This makes it fully suitable for precision machining scenarios such as automotive components and electronic components.
Precision performance is underpinned by multiple factors. The machine tool's inherent mechanical accuracy forms the foundation, with spindle radial runout ≤0.0005mm and guideway positioning accuracy ≤0.001mm/1000mm providing hardware assurance for high-precision machining. The application of super-hard grinding wheels (diamond, CBN) combined with online dressing technology ensures stability and precision retention throughout the cutting process. Additionally, a constant-temperature machining environment, vibration-reduction design, and precise cooling via grinding fluid further mitigate the impact of thermal deformation and vibration on accuracy, delivering more stable high-precision output.
From general machinery to high-end manufacturing, the precision capabilities of CNC double disc grinding machines offer flexible adaptability. Whether for batch precision machining of components like automotive engine pistons and hydraulic valve blocks, or ultra-precision processing of high-end products such as semiconductor packaging substrates and precision bearings, its multidimensional high-precision performance meets stringent process requirements, establishing it as the core equipment for achieving precision end-face machining in modern manufacturing.