Axle box spring mounting hole position metrization detection method and detection tool

Abstract

The invention discloses an axle box spring mounting hole position metrization detection method. A connecting line of centers of mounting holes (2) in an upper end of an axle box spring serves as the xaxis, the central axis of the axle box spring is a z axis, a space coordinate system is established by taking the x axis vertical line as a y axis, metrization detection of the axle box spring mounting hole position is converted into specific value detection of height difference between an axle box spring upper end mounting hole and a detection plane. The invention further discloses an axle box spring mounting hole position metrization detection tool, the z axis and the y axis of the axle box spring are ensured to be parallel to a detection platform during detection through fixed connection limitation between a positioning hole in a first abutting tool (4) and an axle box spring upper end part mounting hole (2) and the support and further relative-position limitation effect of the first abutting tool and a third abutting tool on the axle box spring, and the x axis is perpendicular to the detection platform, and thereby metrization detection of the axle box spring mounting hole position is converted into specific value detection of the height difference between the axle box spring upper end mounting hole and the detection plane.

Description

technical field [0001] The invention relates to the field of measuring tooling, in particular to a quantitative detection method for the position of an axle box spring mounting hole and the detection tooling. Background technique [0002] Axle box spring is a metal rubber part with a core shaft, a spacer, and an outer casing as the skeleton, which can provide vertical stiffness, transmit longitudinal loads and lateral loads, and play the role of vibration reduction and buffering. It has the advantages of easy installation and life-long maintenance-free, and is widely used in subways, light rails and low-floor trains. Axlebox springs are installed on the rolling stock bogies. Generally, each bogie is equipped with a pair of left and right axlebox springs. They have a mirror image relationship with the same structure and size. The angular relationship between the mounting hole at the upper end of the mandrel and the mounting hole at the lower bottom of the jacket directly aff...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem in the prior art that it is impossible to quantitatively detect the position of the axle box spring mounting hole, the technical solution adopted by the present invention is as follows:

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