Axial depth measurement mechanism for under cutting groove

Abstract

The invention relates to an axial depth measurement mechanism for an under cutting groove. The axial depth measurement mechanism comprises a clamp dial indicator, a locking block, a clamp surface jacket, an upper compass body, a lower compass body, a survey probe, a lever and an extension bar; the clamp surface jacket is pressed and matched with the upper end of the upper compass body; the dial indicator is fixedly arranged through the locking block; the extension bar is mounted at the head part of the dial indicator; an open retainer ring is arranged on the extension bar; a first compression spring is mounted on the open retainer ring; the lever is mounted at the lower end of the upper compass body and rotates around a pin; the survey probe is mounted at the lower end of the lever; the upper compass body is connected with the lower compass body through a screw; a limiting screw and a button are mounted at the upper end of the lower compass body; the button is limited to move in the lower compass body through a limiting pin; and two crown bars are arranged at the lower end of the lower compass body. By using the axial depth measurement mechanism, the axial depth of the under cutting groove can be quickly measured; the lever is convenient to rotate; the survey probe can be retracted to insert and extract a work piece conveniently; the measurement precision can be improved; detection equipment can be enabled to detect a dimension with a higher level; the measurement is simple, convenient and quick; and the work efficiency can be greatly improved while the measurement precision is guaranteed.

Description

technical field [0001] The invention relates to a mechanism for measuring the axial depth of an undercut groove of a shaft part, and belongs to the technical field of measurement and inspection devices. Background technique [0002] The undercut groove of shaft parts refers to the arc-shaped undercut at the root of the outer circle of shaft parts. The axial depth of the undercut groove refers to the distance from the top of the arc to the end face. Currently, there are only three coordinates that can measure this axial depth. Although the three-coordinate measurement method can accurately measure the axial depth of the undercut groove, the operation is complicated and the time consumption is very long, so it is not suitable for the inspection process of mass production of workpieces. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an axial depth measurement mechanism for undercut grooves...

AI Technical Summary

Problems solved by technology

Although the three-coordinate measurement method can accurately measure the axial depth of the undercutting groove, the operation is complicated and the time consumption is very long, so it is not suitable for the inspection process of mass production of workpieces

Images