A precision collet is a specialized clamping device used in machine tools to securely hold cylindrical workpieces or cutting tools with high accuracy and concentricity.
A precision collet is a mechanical component designed for high-accuracy clamping applications in machining operations. It consists of a tapered sleeve with longitudinal slits that compress uniformly when drawn into a matching tapered socket, creating a precise, concentric grip on cylindrical objects. Used primarily in precision rotary chucks, lathes, milling machines, and CNC equipment, it ensures minimal runout and maximum gripping force for delicate machining operations requiring micron-level tolerances.
诱因 → 失效模式 → 工程缓解
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ER collets have an 8-degree taper and are versatile for both tool and workpiece holding with good gripping range. TG collets have a steeper 16-degree taper providing higher rigidity and accuracy for specific CNC applications but with less size flexibility.
Inspect for wear, cracks, and cleanliness every 40-80 hours of operation. Replace if runout exceeds 0.01mm or if visible damage is present. Regular cleaning with solvent and light lubrication extends service life.
Standard collets are designed for cylindrical shapes. Special collets with custom bore profiles (hexagonal, square) are available but require precise matching to workpiece dimensions and typically have reduced gripping range.
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