A grinding fluid expansion fixture is a crucial tool used in grinding operations. It employs static pressure expansion technology, which, through applying pressure to the fixture, generates pressure in the hydraulic medium under the action of the pressure mechanism. This forces the deforming element to uniformly elastic deform across the entire clamping range in a 360° circumferential direction, thereby achieving tightness on the workpiece's locating holes/axes.

The working principle of the liquid swelling fixture is based on the principle of static liquid pressure transmission. When the fixture is subjected to pressure, the hydraulic medium is compressed and transmits pressure to the deforming element, causing it to undergo elastic deformation and securely hold the workpiece. This method of clamping ensures the stability and accuracy of the workpiece during the machining process.

Hydraulic胀紧 fixtures can be widely used in various stages of gear processing, such as gear grinding, shaving, and hobbing, and are also suitable for holding thin-walled parts during lathe and machining center operations. In gear grinding, the use of hydraulic胀紧 fixtures ensures better precision, smooth transmission, and even load distribution, contributing to improved gear quality and performance.