Check tool for pneumatic detection of taper angle and detection method

Abstract

The invention relates to a check tool for pneumatic detection of a taper angle and a detection method. The check tool comprises a detection device and a measurer, wherein the detection device is connected with the measurer and comprises a base, a cushion sleeve and a taper sleeve, the taper sleeve is arranged on the base, a conical hole is formed in the taper sleeve, air holes are formed in a sidesurface of the conical hole and are respectively arranged in an upper part and a lower part of the conical hole, axial lines of the air holes are perpendicular to a bus of a measured conical surface,the cushion sleeve is arranged above the taper sleeve, the cushion sleeve and the taper sleeve are coaxially arranged, and a through hole is formed in the cushion sleeve and communicates with the conical hole. By the check tool for pneumatic detection of the taper angle and the detection method, the taper angle of a crank shaft can be accurately detected, and whether a product is qualified or notis conveniently judged; and moreover, the detection speed can be increased, the check tool is suitable for mass detection, and complete inspection of the product is achieved.

Description

technical field [0001] The invention relates to the technical field of inspection tools, in particular to a inspection tool for pneumatically detecting taper angles and a detection method. Background technique [0002] Inspection tools are simple tools used by industrial production enterprises to control various dimensions of products (such as aperture, space dimensions, etc.), improve production efficiency and control quality, and are suitable for mass-produced products, such as auto parts, to replace professional measuring tools , such as smooth plug gauges, threaded plug gauges, outer diameter snap gauges, etc. [0003] At present, when processing the crankshaft, the main engine factory requires a full inspection of the taper angle of the crankshaft. The existing inspection methods are as follows: 1. The first inspection and process control of the existing crankshaft taper. , the detection cycle is long, and it is not suitable for batch detection; 2. At the workshop site...

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Problems solved by technology

[0003] At present, when processing the crankshaft, the main engine factory requires a full inspection of the taper angle of the crankshaft. The existing inspection methods are as follows: 1. The first inspection and process control of the existing crankshaft taper. , the detection cycle is long, and it is not suitable for batch detection; 2. At the workshop site, employees use red lead or blue lead to test and determine whether the taper angle is qualified; this method , cannot detect specific angle values, lacks accuracy, and has poor reproducibility

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