Air charging and exhausting valve oil seal inner flange gauge and detecting method thereof

Abstract

The invention relates to an air charging and exhausting valve oil seal inner flange gauge and a detecting method thereof. The air charging and exhausting valve oil seal inner flange gauge comprises a valve oil seal measuring tool and a spring testing instrument. The valve oil seal measuring tool comprises a base, an upper pull rod and a lower pull rod, wherein the upper pull rod and the lower pull rod are arranged on the base and can slide on the base vertically. The bottom end of the upper pull rod and the top end of the lower pull rod are opposite, and a hook hole is respectively arranged on the upper pull rod and the lower pull rod. The detecting method includes that by matching the spring testing instrument and the valve oil seal measuring tool, pressing force is controlled, and pulling force is measured so as to judge whether the diameter of the valve oil seal inner flange is qualified. The air charging and exhausting valve oil seal inner flange gauge and the detecting method greatly reduce effects of human factors, are good in measuring result repeatability and stability, correct in measuring, favorable for controlling the valve oil seal quality strictly and convenient to operate, save time and improve detecting efficiency.

Description

[0001] technical field [0002] The invention relates to a valve oil seal detection method and a detection device, in particular to a detection tool for an inner flange of an intake and exhaust valve oil seal and a detection method thereof. Background technique [0003] The intake and exhaust valve oil seals used in automobiles generally include an oil seal body. The oil seal body is provided with an inner cavity that runs through the entire oil seal body. An inner flange is provided on the wall of the inner cavity. The entire oil seal body is made of rubber. When in use, the valve stem is passed through the inner cavity of the oil seal body and moves back and forth. In order to ensure the sealing performance of the intake and exhaust valve oil seals, the manufacturer or quality inspection organization needs to test the diameter of the inner flange of the intake and exhaust valve oil seals. At present, a vernier caliper is generally used to detect the diameter of the inner ...

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Problems solved by technology

[0004] The invention mainly solves the technical problems that the vernier caliper is used to detect the inner flange diameter of the valve oil seal, which is easily affected by human factors, the repeatability and stability of the measurement results are poor, and the measurement is not accurate enough, so that the quality of the valve oil seal cannot be strictly controlled; it provides A checker for the inner flange of the intake and exhaust valve oil seal and its detection method, which uses a spring tester and a valve oil seal measuring tool to control the pressing force and measure the pull-out force, thereby judging whether the diameter of the inner flange of the valve oil seal is Qualified, thus greatly reducing the influence of human factors, convenient operation, good repeatability and stability of measurement results, accurate measurement, and conducive to strict control of valve oil seal quality

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