Rapid positioning device for measuring roundness of seat surface of flat and thin valve part

Abstract

The invention discloses a rapid positioning device for measuring the roundness of a seat surface of a flat and thin valve part, and relates to the technical field of positioning devices for flat and thin valve parts, in particular to a rapid positioning device for measuring the roundness of the seat surface of the flat and thin valve part. The device comprises a clamping jaw, a chuck, magnetic steel, a positioning block, a push rod, a positioning conical cover, a positioning conical handle and a handle; and the clamping jaw is connected with the chuck to adjust radial clamping force, a straight handle below the positioning conical handle is arranged in the three-jaw clamping jaw, the magnetic steel is arranged in the positioning block, the push rod is in threaded connection with the positioning block, the push rod is inserted into a middle hole of the positioning conical handle, the handle penetrates through a kidney-shaped groove in the side surface of the positioning conical handle and is in threaded connection with the push rod, the positioning conical cover is arranged above the positioning conical handle and is attached to the conical surface of the positioning conical handle,and the part to be measured is arranged in a middle hole of the positioning conical cover. The device has an axial and radial double positioning function, is convenient and not inclined in part installation, does not need manual adjustment, and is high in efficiency, practical and capable of quickly positioning and clamping the part for roundness measurement, so that the detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of positioning devices for flat and thin valve parts, in particular to a fast positioning device for measuring the roundness of seat surfaces of flat and thin valve parts. Background technique [0002] When measuring the roundness of the seat surface of flat and thin valve parts, the conventional positioning method is to directly use the three-jaw chuck to clamp. The specific operation is to install the jaws into the chuck first, and then hold the part into the jaws to adjust the parts position, and at the same time tighten the jaws so that it clamps the part to realize the positioning of the part, and then measure the roundness of the seat surface of the part; but the problems of this method are as follows: [0003] 1. Since the parts are very flat and thin, it is very inconvenient to put them in manually; [0004] 2. The original device only has radial positioning and no axial positioning, which often cau...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the parts are very flat and thin, it is very inconvenient to put them in manually;

[0004] 2. The original device only has radial positioning and no axial positioning, which often causes parts to be clamped obliquely, resulting in inaccurate measurement results, requiring re-adjustment of clamping, and reducing work efficiency

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