JPH0418308U

JPH0418308U -

Info

Publication number: JPH0418308U
Application number: JP6001890U
Authority: JP
Priority date: 1990-06-05
Filing date: 1990-06-05
Publication date: 1992-02-17

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案の一実施例を示すも
ので、第１図は全体構成を示す斜視図、第２図は
全体構成の測定ヘツド部を断面した正面図、第３
図は測定ヘツド部の拡大断面図、第４図は第３図
の−線に沿つた断面図、第５図は測定ヘツド
部の分解斜視図、第６図乃至第８図は従来例を示
すもので、第６図は全体構成を示す正面図、第７
図は第６図の底面図、第８図は第６図の要部の断
面図である。１０……内径測定器、２０……操作部、２１…
…基端中空軸、３０……測定器本体、４０……測
定ヘツド、４１……先端中空軸、４３……シヤフ
ト、４７……テーパ面、７１……ばね、７３……
測定子。 1 to 5 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the overall configuration, FIG.
The figure is an enlarged sectional view of the measuring head section, FIG. 4 is a sectional view taken along the - line in FIG. 3, FIG. 5 is an exploded perspective view of the measuring head section, and FIGS. 6 to 8 show conventional examples. Figure 6 is a front view showing the overall configuration, Figure 7 is a front view showing the overall configuration, and Figure 7 is a front view showing the overall configuration.
The figure is a bottom view of FIG. 6, and FIG. 8 is a sectional view of the main part of FIG. 10...Inner diameter measuring device, 20...Operation unit, 21...
... Base end hollow shaft, 30 ... Measuring instrument body, 40 ... Measuring head, 41 ... Tip hollow shaft, 43 ... Shaft, 47 ... Tapered surface, 71 ... Spring, 73 ...
Measuring head.

Claims

[Claims for Utility Model Registration] (1) In an internal diameter measuring device that measures the diameter of a hole by bringing a plurality of probes at three or more points into contact with a hole in a workpiece, the probes are formed into a spherical shape; , the spherical inner surface of the gauge head is supported on the tapered surface of a shaft that supports the gauge head so that a portion thereof can protrude from the outer surface of the measuring instrument body, and is provided so as to be slidable in the axial direction within the gauge body. An inner diameter measuring instrument characterized by being provided with a spring that biases a contact so that it is always in contact with the contact. (2) The inner diameter measuring instrument according to claim 1, wherein the taper ratio of the tapered surface is 1/10.