machine

  Center Hole Lapping Machines: Precision Benchmark for High-Accuracy Component Machining 1. Introduction   As the positioning benchmark for shaft-like and disc-like components, center holes directly determine the accuracy of subsequent machining processes such as grinding and turning. After initial drilling or grinding, center holes often have tiny defects like uneven roughness or micro-scratches, which affect component assembly accuracy and service life. Center hole lapping machines specialize in refining these defects, achieving ultra-smooth and high-precision center holes (roundness ≤ 0.001 mm, Ra ≤ 0.01 μm) to ensure the quality of high-end precision components.   2. Structure and Working Principle   2.1 Core Components - Machine Base: High-rigidity cast iron structure with vibration-damping design, ensuring stable operation and avoiding vibration-induced precision errors during lapping. - Lapping Head: Equipped with multi-edge CBN/diamond lapping tips and an ad...