Elastic chuck device

Abstract

The invention discloses an elastic chuck device which comprises a cylinder sleeve, a plurality of radial holes are formed in the cylinder sleeve around the axis, and the radial holes penetrate through the cylinder wall of the cylinder sleeve; the elastic sleeve is arranged on the cylinder sleeve in a sleeving mode, and the elastic sleeve wraps the pipe section with the radial holes distributed; the number of the clamping parts is equal to that of the radial holes, the clamping parts are correspondingly assembled in the radial holes, and when the proximal ends of the clamping parts are pressed, the clamping parts can move outwards in the radial holes and extrude the elastic sleeve. When a workpiece is machined, the workpiece penetrates through the central through hole of the cylinder sleeve, the workpiece generates thrust on the clamping part, the clamping part is pressed to move in the radial hole in the direction away from the workpiece, and the clamping part expands the elastic sleeve in the moving process, so that the elastic sleeve deforms; due to the fact that the elastic sleeve has elasticity, the elastic sleeve generates counter-acting force on the clamping parts, and therefore the clamping parts abut against the workpiece, and the workpiece is clamped through the combined action of the multiple clamping parts.

Description

technical field [0001] The invention relates to a clamp, in particular to an elastic chuck device. Background technique [0002] Fixture refers to the device used to fix the processing object in the process of mechanical manufacturing, so that it is located in the correct position to accept construction or inspection, also known as fixture. In a broad sense, any process in the process, the device used to quickly, easily and safely install the workpiece can be called a fixture. [0003] At present, there are many kinds of clamps for holding tubular workpieces or rod-shaped workpieces on the market, such as drill chucks and pneumatic chucks for turning and milling machines. The mechanical mechanism of the traditional clamp is complex and the production cost is high; in addition, although the clamping force of the traditional clamp is relatively large, some clamping applications do not require a large clamping force. If the clamping force is too large, it is easy to The clamp...

AI Technical Summary

Problems solved by technology

The mechanical structure of the traditional fixture is complicated and the production cost is high; in addition, although the clamping force of the traditional fixture is relatively large, some clamping applications do not require a large clamping force. If the clamping force is too large, it is easy to Make the clamped workpiece deform, affecting production quality and production efficiency

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