Piston ring grabbing mechanism for piston ring mounting machine

Abstract

The invention discloses a piston ring grabbing mechanism for a piston ring mounting machine. The piston ring grabbing mechanism comprises a connecting plate fixedly connected to the piston ring mounting machine, a pull ring assembly and a supporting ring assembly, wherein a clamping mechanism for grabbing a piston ring is connected to the lower end surface of the connecting plate, and a circular through hole is formed in the connecting plate; the clamping mechanism comprises a plurality of claw parts which are uniformly distributed around the circular through hole and are connected to the connecting plate; each claw part comprises a mounting frame which is arranged below the connecting plate; the pull ring assembly is fixedly connected to one side surface, facing the circular through hole,in the mounting frame; and the supporting ring assembly is fixedly connected to the other side surface of the mounting frame. According to the piston ring grabbing mechanism, the piston ring needingto be mounted is clamped through the clamping effect between a lower pressing block in the pull ring assembly and an upper supporting block in the supporting ring assembly; and under the action of a telescopic assembly, the arranged claw parts can simultaneously apply acting force to the inner diameter surface of the piston ring through the action of a pull plate, so that the expansion of the piston ring is realized.

Description

technical field [0001] The invention belongs to the technical field of piston ring assembly, and in particular relates to a piston ring grasping mechanism for a piston ring loading machine. Background technique [0002] Due to the large variety of piston rings and large differences in ring diameters, among them, the scraper ring is light in weight and thin in thickness, and the thickness is generally about 0.35mm, and the thickness of the lining ring is generally about 1.9mm. Two scraper rings and one liner ring are installed into a slot on the piston. Most of the existing piston rings are installed manually, so the efficiency of manual ring installation is not only low, but also the labor intensity is particularly high due to the thin thickness. Large, and the piston ring is easy to be damaged manually; the most important thing is that the precision of piston ring installation is very high, the accuracy of manual ring installation is low, and the rework rate is high, which ...

AI Technical Summary

Problems solved by technology

[0002] Due to the large variety of piston rings and large differences in ring diameters, among them, the scraper ring is light in weight and thin in thickness, and the thickness is generally about 0.35mm, and the thickness of the lining ring is generally about 1.9mm. Two scraper rings and one liner ring are installed into a slot on the piston. Most of the existing piston rings are installed manually, so the efficiency of manual ring installation is not only low, but also the labor intensity is particularly high due to the thin thickness. Large, and the piston ring is easy to be damaged manually; the most important thing is that the precision of piston ring installation is very high, the accuracy of manual ring installation is low, and the rework rate is high, which will bring high labor costs and other problems to the enterprise.

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