Method and device for measuring piston ring excircle configuration multiple parameters

Abstract

The invention discloses a process for measuring the cylindrical outline multi-parameter of a piston ring and a device thereof. The basic content is that an anti-rotating nut in a precision lead screw driving pair is driven by a stepping motor under the control of a computer to drive an air-float guide rail sleeve to move up and down along the direction of a Z-shaft, a two-dimension scanning system with high precision is formed by a measuring head and an air-float guide rail with high precision for scanning and measuring the cylindrical outline of the piston ring clamped on a bench, wherein the measuring head is arranged on the air-float guide rail sleeve, and is formed by an electric eddy sensor and a canning knife-edge which is fixed on the supporting lower end of a parallel reed, and the computer timely displays detected data and the outline image of the detected piston ring which is amplified according to proportion on a screen, the stepping motor rapidly and reversely rotates after the set ring height value is scanned, and the air-float guide rail sleeve can automatically and rapidly return to the initial position under the gravity effect. The invention has the characteristics of high automation degree, many measuring parameters, high measuring precision, fast detecting speed, stable performance and convenient operation, etc.

Description

technical field [0001] The invention relates to a multi-parameter measurement technology of the outer circle profile of a piston ring, in particular to a method and a device for measuring various parameters of the outer circle profile of a piston ring which are automatically controlled by a computer. Background technique [0002] Piston rings are the main parts of internal combustion engines and piston compressors, and their quality directly affects the performance of engines and compressors. Since internal combustion engines are used in automobiles, agricultural machinery, ships, motorcycles and other industries, the annual output of main engine accessories and accessories in China alone reaches hundreds of millions of pieces. Therefore, the piston ring is used in a large amount and has a great impact. Among the technical parameters of the piston ring, the detection of the technical parameters of the outer circle profile is the most difficult. Most enterprises in China's ...

AI Technical Summary

Problems solved by technology

Most enterprises in China's domestic piston ring industry use relatively backward manual inspection methods. For example, ordinary cone rings are inspected on a universal tool microscope after being cut off from the axis, and barrel face rings and oil rings are inspected with lower precision. The detection device is used for measurement, and these methods are used to measure the outer circle of the piston ring. The disadvantages are that the detection accuracy and efficiency are low, and more importantly, the use of such inspection methods will change the processing and production process from continuous to intermittent. Reduced efficiency

At present, some large-scale enterprises in China use a general-purpose profiler to measure a single parameter of the outer circle of the piston ring in the measuring room. Using this measurement method is not only inefficient, the measurement device is expensive, the use environment is high, and it cannot be used in the production site. The vast majority of domestic production enterprises do not have these conditions, which greatly affects the quality assurance of the piston ring industry

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