Detection device for lathe workpiece hole

Abstract

The invention provides a detection device for a lathe workpiece hole. The detection device comprises a supporting rod, a dial indicator, and a seat body, and further comprises an ejector rod mechanism, the supporting rod is provided with a side opening cavity and a first through hole, wherein the side opening cavity comprises a first cavity body and a second cavity body communicating with the first through hole, the cavity diameter of the first cavity body is larger than that of the second cavity body, a detection rod stretches into the first through hole in a sliding mode, one part of an ejector rod is internally arranged in the second cavity body, the side wall of the ejector rod is in contact fit with the head of the detection rod, the other part of the ejector rod sequentially penetrates through a sleeve embedded in the first cavity body and a locking nut arranged on the side wall of the supporting rod to be in contact fit with the workpiece hole to be detected, two spherical screws are symmetrically arranged on the side wall of the sleeve, the spherical portions of the spherical screws abut against the inner wall of the sleeve, and the spring sleeves the side wall of the portion, between the sleeve end close to the dial indicator and the wall of the second cavity body, of the ejector rod. Compared with the prior art, the detection device has the advantages that the detection precision is improved, meanwhile, the operation is convenient, and the detection efficiency is improved.

Description

technical field [0001] The invention belongs to a detection device for lathe workpiece holes. Background technique [0002] At present, in the prior art, there is a detection device for a lathe workpiece hole, which includes: a support rod; a dial indicator, which has a dial and a detection rod; a seat, a part of which is fixed to the cylinder side where the dial extends wall, and the other part is fixed to the side wall of the support rod. Using the aforementioned structure to detect the lathe workpiece hole, the existing problem is: the dial indicator needs to be installed on the dial indicator seat before the detection, and then the aforementioned dial indicator is set by using multiple screws and after many times. On the support rod, then use the detection rod of the dial indicator to detect the workpiece hole; because the aforementioned detection device is installed through multiple screws and support rods, the detection accuracy is low. [0003] For this reason, the ...

AI Technical Summary

Problems solved by technology

Using the aforementioned structure to detect the lathe workpiece hole, the existing problem is: the dial indicator needs to be installed on the dial indicator seat before the detection, and then the aforementioned dial indicator is set by using multiple screws and after many times. on the support rod, and then use the detection rod of the dial indicator to detect the workpiece hole; because the aforementioned detection device is installed through multiple screws and support rods, the detection accuracy is low

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