A valve seat ring front and back detection device

Abstract

The invention relates to a valve seat ring front and back detection device, which comprises an upright main support, the upper part of the main support is fixed with a cylinder barrel of a cylinder, the piston rod of the cylinder faces upwards and is fixedly connected with the right end of a support I, the support The longitudinal gap at the left end of I passes through a detection rod. The lower end of the detection rod is the detection head. The detection rod between the detection head and the bracket I is covered with a compressed spring. The upper part of the detection rod is fixed with a limit washer and a limit washer. There is a clamping block fixed on the detection rod at the top of the test rod, and the right end of the clamping block is provided with a limit groove that runs through the front and rear; the middle part of the bracket I is fixed with a bracket II, and the left end of the bracket II has a front-rear direction pin II. The sub-II is rotatably connected to a shading plate, a pin I penetrates the limit slot and the left end of the shading plate front and rear, the right end of the bracket II has a photoelectric switch, and the right end of the shading plate has a light-passing groove corresponding to the photoelectric switch. The solution provides a mechanical contact type and high reliability detection device for the front and back surfaces of the seat ring.

Description

technical field [0001] The invention relates to a press-fitting technology of an engine cylinder head valve seat ring, in particular to a front and back detection device for a valve seat ring. Background technique [0002] The press-fitting of the engine cylinder head seat is a key process in the production process of the engine cylinder head. The quality and accuracy of the press-fit are directly related to the quality and cost of the engine. In order to improve the degree of automation and production efficiency of seat ring assembly and reduce the scrap rate of cylinder heads, at present, automatic press-fitting machines are mostly used to automatically transport seat rings, and automatically judge the chamfering direction on the seat rings, and follow the correct direction Pressing into the bottom hole of the seat ring, usually the way to judge the chamfering direction of the seat ring is through the vibration plate, but the discrimination rate of this method is not high....

AI Technical Summary

Problems solved by technology

However, due to the small chamfer on the seat ring, the displacement difference caused by the chamfer of the seat ring in this scheme is a small amount, which requires a high detection accuracy, and the change of the detection signal can be judged by the program, which requires the accuracy of the equipment. Too high, severely limited in actual use

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