A device and method for measuring inner hole size suitable for rotary parts

Abstract

The invention discloses an inner hole size measuring device and a measuring method suitable for revolving body parts, which belong to the technical field of revolving body part size measurement. The inner hole size measuring device is set in a form that can be correspondingly arranged on a lathe pallet , so that the workpiece of the rotary body can continue to measure the inner hole without being removed from the lathe clamping position after processing, and the guide rail anti-backlash devices are installed on the longitudinal sides of the pallet to eliminate the gap between the chute and the pallet. The influence of the gap between the plates on the accuracy of the measurement results ensures the accuracy of the measurement of the inner hole size of the rotary parts. The device for measuring the size of the inner hole of the revolving body part of the present invention has a simple structure and a simple and convenient measuring method, and can effectively realize error calibration and accurate measurement of the inner hole size of the revolving body part, reduce measurement errors, and simplify the inner hole of the revolving body part The measurement process improves the accuracy and efficiency of the measurement of the inner hole size of the rotary parts, and has a good application prospect and promotion value.

Description

technical field [0001] The invention belongs to the technical field of dimension measurement of revolving body parts, and in particular relates to an inner hole size measuring device and a measuring method suitable for revolving body parts. Background technique [0002] When turning large revolving parts, it is often necessary to measure the inner hole of the revolving parts online to ensure the machining accuracy of the revolving parts. [0003] In actual production, in order to simplify the setting of the measuring equipment of the rotary parts, it is usually combined with the processing equipment of the parts, that is, a quick change device is set on the lathe tool holder, so that the processing tool and the measuring tool can be quickly changed. Switch on the device, and use the existing processing lathe to complete the measurement process of the part. The above-mentioned design scheme can effectively simplify the processing and measuring procedures of the rotary parts,...

AI Technical Summary

Problems solved by technology

[0004] However, when the operator uses the above method to actually measure the inner hole size of the revolving body, it is found that the measurement results often have a measurement error of more than 0.1mm, and the stability and accuracy of the measurement results are poor.

After analysis, the researchers found that the main reason for the above problems is: when the processing lathe is reciprocating for a long time, different parts of the guide rail where the processing tool is located have different degrees of wear, and the supporting plate supporting the processing tool and measuring tool is in the guide rail. There is a possibility of left and right deviation during operation, which makes it difficult to ensure that the measuring tool holder is always parallel to the axis of the inner hole of the rotary part during measurement, which will bring errors to the measurement results

At the same time, the existence of the above-mentioned wear situation also makes the machining accuracy of the rotating body parts have certain errors.

Moreover, the influence of the above-mentioned errors is more obvious in the process of processing and measuring large-scale rotary parts, which is also more serious than the wear of lathes during the processing of large-scale rotary parts, and the wear conditions of frequently used parts and infrequently used parts are quite different. Moreover, due to the long length of the measuring tool rod, it will cause the amplification of the measurement error caused by the gap between the guide rails

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