Taper hole depth detecting device

Abstract

A taper hole depth detecting device comprises a detecting body, a jack-prop, a dial gauge and a spherical measuring piece. The detecting body comprises a first end portion and a second end portion opposite to the first end portion. The detecting body is further provided with a containing cavity. The jack-prop is arranged in the containing cavity of the detecting body in a sliding mode along the axis of the detecting body and is provided with a first end face and a second end face opposite to the first end face. The dial gauge comprises a dial gauge head and a dial gauge rod connected to the dial gauge head. The dial gauge rod penetrates through the first end portion of the detecting body and is provided with a measuring end face. The measuring end face abuts against the first end face of the jack-prop. The spherical measuring piece is located on the second end portion of the detecting body and abuts against the second end face of the jack-prop. The taper hole depth detecting device is simple in structure, convenient to carry, and capable of detecting the depth of a taper hole quickly, efficiently and reliably.

Description

Technical field [0001] The invention relates to the technical field of detection, and in particular to a tapered hole depth detection device. Background technique [0002] Tapered holes are widely used in products. For example, the center hole at both ends of the shaft is a kind of tapered hole. In the mass production of the shaft, the depth of the center hole is a very important parameter, which directly affects the change of the axial dimension. Therefore, The measurement of the depth of the taper hole is very important. [0003] At present, the measurement of the depth of the taper hole is usually carried out on the platform by using a steel ball and a height gauge. This measurement method has the following disadvantages: 1. Since the platform must be at a fixed position, the measurement location is relatively fixed, so the measurement of the depth of the taper hole of the workpiece cannot Do it anywhere. 2. Since the workpiece must be removed from the machine tool and ...

AI Technical Summary

Problems solved by technology

[0003] At present, the measurement of the depth of the taper hole is usually carried out on the platform by using a steel ball and a height gauge. This measurement method has the following disadvantages: 1. Since the platform must be at a fixed position, the measurement location is relatively fixed, so the measurement of the depth of the taper hole of the workpiece cannot anywhere

2. Since the workpiece must be removed from the machine tool and placed on the platform for measurement, online measurement cannot be realized

3. If it is necessary to measure the depth of the taper hole, the workpiece needs to be removed from the machine tool and then measured. Once the size is unqualified, it needs to be assembled on the machine tool for rework. Due to the insufficient repeat positioning accuracy of the workpiece clamping, the rework operation is complicated and expensive. time, thus not conducive to workpiece rework

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