Tool for measuring angle of tapered hole at bottom of deep groove cavity

Abstract

The invention belongs to the technical field of measuring tools, in particular to an instrument for rapidly measuring the angle of a tapered hole at the bottom of a deep groove cavity. The instrumentcomprises a central rod, wherein the top of the central rod is connected with one end of a connecting rod, and the other end of the connecting rod is connected with a protractor; the protractor is arranged on an auxiliary measuring rod; a vertical sliding connecting block is arranged at the lower part of the central rod; a vertical sliding connecting block is connected with the three transverse rods, wherein one transverse rod is connected with the auxiliary measuring rod through a transverse sliding connecting block, and the other two transverse rods are respectively connected with a stop endconnecting rod through transverse sliding connecting blocks; the bottom of the central rod is connected with a stop end cylinder, and the stop end cylinder is connected with the two stop end connecting rods and the auxiliary measuring rod through stop end measuring rods. The instrument is simple in structure and easy to operate, can go deep into the bottom of the deep groove cavity, can accurately and rapidly read the specific numerical value of the angle of a tapered hole, and can provide practical data for later processing condition analysis.

Description

technical field [0001] The application belongs to the technical field of measuring tools, in particular to an instrument for quickly measuring the angle of a tapered hole at the bottom of a deep groove cavity. Background technique [0002] In the production process of machined parts, the chamfering taper of the bottom hole of the deep groove cavity is one of the indicators to judge whether the processing of the part is qualified. At present, in the actual production of factories, the angle is most commonly used to measure angles. However, when measuring the taper hole at the bottom of a deep groove, the angle ruler is difficult to operate in the deep groove, inconvenient to read, and even difficult to put into the deep groove. Another method is to make plug gauges of specific specifications for testing of tapered holes of different specifications. This detection method is costly, and it can only judge whether the taper of the hole meets the tolerance requirements, and canno...

AI Technical Summary

Problems solved by technology

This detection method is costly, and it can only judge whether the taper of the hole meets the tolerance requirements, and cannot read the specific value of the taper of the hole

For the tapered hole at the bottom of the deep groove, it is difficult to observe the scale line on the plug gauge, and it is impossible to make an accurate judgment on whether the taper of the hole is qualified

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