The clamping method of the hydraulic chuck is a type that only requires a single pressure bolt to tighten. Using this tool clamping system can control the radial runout error accuracy and repeat positioning accuracy within 3μm. In order to achieve better machining results, hydraulic chucks are commonly applied in various fields. Today, let's explore together: What are the characteristics of hydraulic chucks? How does the hydraulic chuck work?
Hydraulic chucks have extremely high clamping rotation precision (≤0.003mm). In drilling and reaming processes, they can greatly improve the dimensional accuracy of holes and effectively prevent tool breakage; In milling processes, they allow multi-edge cutting tools to evenly engage the workpiece, thus improving cutting conditions and reducing tool wear.
Hydraulic chucks also increase structural damping inside the oil chamber, improving the dynamic characteristics of the chuck clamping and providing excellent damping and vibration reduction performance. They reduce vibration generated during cutting processes and improve surface quality of the workpiece.
Hydraulic chucks are very convenient for tool installation and removal, and can be easily done using a hex wrench without any auxiliary devices.
Hydraulic chucks utilize two concentric cylinders with air expansion shafts, sealed on both ends to form a cylindrical cavity. One of the cylinders is filled with hydraulic oil and a certain pressure is applied to the oil, transferring the pressure to every part of the oil chamber. The outer wall of these two concentric cylinders is relatively thin. After being subjected to pressure, it expands outward. Through the deformation of this thin wall, internal hole clamping and external diameter clamping can be achieved. At this time, the thin wall uniformly bears the hydraulic pressure, resulting in high clamping precision of the workpiece's internal hole and external diameter.
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