Crankshaft eccentric segment external diameter cylindricity detection device

Abstract

The invention relates to a crankshaft eccentric segment external diameter cylindricity detection device includes a chassis, a sleeve and self-centring balls, an upper surface of the chassis is coaxially equipped with a guide rail disc, an adjustable eccentric sliding block is slidably mounted on the guide rail disc, one or more adjusting holes are manufactured on the guide rail disc, an eccentricity adjustment locating pin is mounted on the adjustable eccentric sliding block, the eccentricity adjustment positioning pin is inserted in one of the adjusting holes, and the sleeve used for inserting a crankshaft workpiece is coaxially mounted on the adjustable eccentric sliding block; the plurality of self-centering balls are embedded in a lower bottom surface of the chassis, and all the self-centering balls are arranged on the same circumference. The crankshaft eccentric segment external diameter cylindricity detection device provided by the invention is ingenious in design, simple in structure, easy to manufacture and convenient to use, and by use of the device, a crankshaft eccentric segment can be rapidly and accurately aligned, thereby ensuring that the center of rotation of a cylindricity instrument is concentric with an eccentric segment of the workpiece, and overcoming the defects of low speed, low efficiency and poor accuracy of traditional manual measurement.

Description

technical field [0001] The invention relates to the field of clamping and testing tools, in particular to a cylindricity testing device for the outer diameter of an eccentric section of a crankshaft. Background technique [0002] After the crankshaft is turned, the outer diameter needs to be ground, and the cylindricity of the outer diameter of the middle eccentric section of the crankshaft should be tested. At present, the cylindricity meter is usually used to detect the outer diameter of the crankshaft. Due to the special shape of the crankshaft, it is difficult to find the center, especially it is difficult to find the center of the eccentric section manually, so it cannot be guaranteed that the rotation center of the cylindricity meter is concentric with the center of the workpiece. , so that measurement errors are prone to occur, resulting in unqualified products entering the market, and the correction speed is slow and inefficient. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

At present, the cylindricity meter is usually used to detect the outer diameter of the crankshaft. Due to the special shape of the crankshaft, it is difficult to find the center, especially it is difficult to find the center of the eccentric section manually, so it cannot be guaranteed that the rotation center of the cylindricity meter is concentric with the center of the workpiece. , so that measurement errors are prone to occur, resulting in unqualified products entering the market, and the speed of alignment is slow and the efficiency is low

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