Oct. 31, 2024
Hydraulic power chucks are widely used in CNC machine tools, but you will not come into contact with them in normal times,
and you will not know much about hydraulic power chucks. The following is an analysis of the classification and market of hydraulic power chucks for your reference.
1. Classification of hydraulic power chucks
1. Wedge-type hydraulic power chuck
The wedge structure is a common structural form of hydraulic power chucks.
It converts the axial movement of the chuck piston into the radial movement of the claw through the wedge groove mechanism.
2. Helical tooth slider hydraulic power chuck
The chuck of this structure first converts the axial movement of the chuck piston into the movement of three sliders in its slide groove through the wedge groove mechanism.
The tops of these three sliders are equipped with helical teeth, which form an inclined meshing relationship with the teeth at the bottom of the claw.
The movement of the slider drives the claw to move radially to clamp the workpiece. It has a large clamping force, high clamping accuracy,
and low mechanism wear; because the movement direction of the slider in the chuck slide groove is basically perpendicular to the centrifugal force direction of the claw,
the clamping force of the chuck is little affected by the centrifugal force, and the chuck has good high-speed performance.
3. One-lever power chuck
The piston drives the wedge tooth block through the wedge mechanism, and then drives the claw through the straight lever.
The jaws of this structure have a small mass, and the centrifugal force of the wedge tooth block compensates for the centrifugal force of the jaws,
reducing the loss of clamping force, which is conducive to increasing the rotation speed. The fulcrum of the lever is designed as a spherical support to withstand higher pressure.
4. Pull-in chuck
This chuck is generally used to clamp slender shafts, relying on the axial movement of the sleeve, and locking through the cone surface fit and the change in the sleeve diameter
The above is the classification of hydraulic power chucks, I hope it can help you.
