Gauges for short internal cone measurements

Abstract

The invention discloses a gauge for measuring a short inner cone. The gauge comprises a taper plug gauge (8) and a perpendicularity guarantee device of the taper plug gauge (8), wherein the perpendicularity guarantee device comprises a base plate (4) and a support block (6) connected with the base plate (4); an accommodating space (A) of a tested short inner conical part (1) is formed between the base plate (4) and the support block (6); a locating sleeve (5) is arranged on the base plate (4); the locating sleeve (5) is provided with a locating hole (J) and an end surface (C); a casing pipe (7) is arranged on the support block (6); an inner hole (G) is formed in the casing pipe (7); the axis of the inner hole (G) is perpendicular to the end surface (C); and during measurement, the taper plug gauge (8) penetrates through the inner hole (G) of the casing pipe (7) and stretches into the locating hole (J) of the locating sleeve (5), and the short inner conical part (1) is placed in the accommodating space (A) in the end surface (C). The gauge for measuring the short and inner cone has the benefits that the measurement is accurate and the quality is guaranteed.

Description

technical field [0001] The invention relates to a machining measuring tool, in particular to a gauge for measuring the diameter and taper of a short inner conical end face. Background technique [0002] In some mechanical systems, a large number of friction spring parts with a short inner conical structure with a length of less than 3mm and a diameter of the large end greater than 15mm are widely used, and their shock absorption effect in a small space is better than that of a coil spring. However, because the friction spring is a thin-walled ring, it has many components, small parts, and high requirements for the consistency of the size of each part. It is difficult to manufacture and detect, especially the taper of the friction spring parts and multiple friction spring parts. The combination height is an important factor affecting the spring force of the friction spring, and a reasonable design of the taper measuring tool is a necessary means to control the quality of the ...

AI Technical Summary

Problems solved by technology

Due to the short conical length of this part and the large diameter of the big end, the measurement of the end surface diameter is inaccurate by using a three-coordinate machine for measurement. After multiple parts are assembled each time, the height error is large, and it takes a long time to select and assemble. Reach the required height; at the same time, the taper measurement is not accurate, and the taper of each batch of parts is inconsistent, resulting in that after the matching height of multiple parts is qualified, the force of the friction spring after the compression equal height is unqualified, and the pass rate is only 25% to 30%.

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