Piston ring clamp set for rapid clamping and thread locking prevention

Abstract

Provided is a piston ring clamp set for rapid clamping and thread locking prevention. The excircle of a clamp sleeve is provided with a long-strip-shaped spline, the sum of the width of the spline andthe diameter of the clamp sleeve is greater than the diameter of a gap of a piston ring, the clamp sleeve is sleeved with the piston ring, the gap of the piston ring is positioned through the spline,and the portion, located on the upper portion of the piston ring, of the clamp sleeve is sleeved with a compression sleeve; outer threads are arranged on the upper portion of the clamp sleeve, a compression nut and a locking nut are sequentially mounted on the portion, located on the upper portion of the compression sleeve, of the clamp sleeve, and a protruded metal ring is arranged on the upperportion of the locking nut. By the adoption of the piston ring clamp set for rapid clamping and the thread locking prevention, film coating requirements are met to the maximum degree, usage is convenient and flexible, and the production efficiency is greatly improved; a plurality of piston rings can be clamped one time and can sleeve a rotation shaft rod layer by layer, and because the piston rings are not directly placed on the rotation shaft piece by piece, it is very convenient to load and unload the piston rings; the piston ring clamp set is accurate in positioning and high in film coatingquality; due to the design of the locking nut, normal loading and unloading are effectively ensured after film coating, and the piston ring clamp set has a thread locking prevention function.

Description

technical field [0001] The invention relates to the field of coating equipment, in particular to a clamping equipment for piston ring coating. Background technique [0002] Common methods for preparing DLC ​​films include vacuum evaporation, sputtering, plasma-assisted chemical vapor deposition, and ion implantation. Among these methods, the traditional vacuum evaporation coating method has a high deposition rate and high purity of the formed film, but due to the low energy of the thermally evaporated atoms or molecules on the substrate, the surface mobility is very low, resulting in the combination of the film and the substrate. The poor intensity, coupled with the shadow effect of the deposited atoms on the atoms that fly later, greatly limits the application of vacuum evaporation coating technology. The ion implantation method can significantly change the friction coefficient, wear resistance, and corrosion resistance of the material, and there is no clear interface betw...

AI Technical Summary

Problems solved by technology

[0005] The surface of the piston ring needs to be coated, and it is very unrealistic to stack the piston ring directly in the vacuum chamber

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