A fast centering positioning clamping device for u-shaped thin-walled rotary parts

Abstract

The invention provides a quick centering, positioning and clamping device of a U-shaped thin-walled rotating member. The quick centering, positioning and clamping device comprises a hollow rotating main shaft, a main shaft flange, radial moving wedges and axial moving wedges, wherein a vacuum straw is arranged in the hollow rotating main shaft, and one end of the vacuum straw is connected with a vacuum sucking disc, so as to generate suction force to suck the bottom surface of the U-shaped thin-walled rotating member; the main shaft flange is fixed to the end of the hollow rotating main shaft, the radial moving wedges are radially connected with the main shaft flange by virtue of radial reset members, the axial moving wedges are axially connected with the main shaft flange by virtue of an axial driving mechanism, and the radial moving wedges are in sliding fit with the axial moving wedges; the axial moving wedges are driven to move along the axial direction by the axial driving mechanism, and the radial moving wedges are driven to move along the radial direction by the axial moving wedges and are driven to reset by the radial reset members. According to the quick centering, positioning and clamping device, the U-shaped thin-walled rotating member can be clamped, so that the U-shaped thin-walled rotating member can be quickly and accurately centered in any state, the rotating accuracy is high, the clamping is realized without deformation, and the surface machining accuracy is effectively increased.

Description

technical field [0001] The invention relates to a clamp, in particular to a fast centering positioning and clamping device for a U-shaped thin-walled rotary part. Background technique [0002] With the development of modern society and the improvement of people's quality of life, the demand and variety of products with U-shaped rotary thin-walled parts are increasing, and the requirements for surface processing quality are getting higher and higher, and the surface of the product is required to be smooth and uniform. Non-scratch processing effect, for metal products, it is required to form a shiny metallic luster. The surface processing of metal products is a labor-intensive job with mild dust pollution. Due to the rising labor costs, environmental protection and labor protection needs, it is increasingly dependent on robot-automated surface grinding and polishing processing to meet the requirements. [0003] The current processing technology of U-shaped rotary thin-walled ...

AI Technical Summary

Problems solved by technology

[0004] The current clamping method for U-shaped rotary thin-walled parts is manual loading and unloading, alignment and vacuum suction clamping. The workpiece is manually placed on the rotatable vacuum suction spindle with the jacket or mandrel as a reference, and the U-shaped product is clamped by negative air pressure. Absorption at the bottom of the workpiece, lack of precise centering and positioning mechanism, severe eccentricity, difficulty in ensuring the rotation accuracy of the workpiece, resulting in unstable polishing process, uneven polishing surface accuracy, rework, and reduced processing efficiency.

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