Coaxiality detecting tool

Abstract

Disclosed is a coaxiality detecting tool composed of a hexagon flange nut, a measuring column and a detection sleeve. When the coaxiality detecting tool is used, a cone of the measuring column is matched with a cone hole of a detected workpiece, the hexagon flange nut is matched with a threaded column of the measuring column, and the measuring column is fixed on the workpiece; an inner hole of the detection sleeve is matched with a detection column, the conical surface of the detection sleeve is in contact with the orifice of a E hole in the workpiece, whether the whole conical surface is in uniform contact with the orifice of the E hole is observed, and if in uniform contact, the detected coaxiality is qualified, otherwise, the detected coaxiality is unqualified.

Claims

1. A coaxiality detecting tool for detecting a coaxiality of a straight hole in a detected workpiece relative to an axis of a cone hole, the coaxiality detecting tool comprising of a hexagon flange nut, a measuring column and a detection sleeve, wherein the measuring column comprises, in a direction from the hexagon flange nut to the detection sleeve, a threaded column, a cone, a cylinder, a detection column and a guiding cone; wherein the coaxiality detecting tool is configured such that: the cone of the measuring column is matched with the cone hole of the detected workpiece, the hexagon flange nut is matched with the threaded column of the measuring column, and the measuring column is fixed on the detected workpiece, an inner hole of the detection sleeve is matched with the detection column, and an outer conical surface of the detection sleeve is in contact with an orifice of the straight hole in the detected workpiece; when the outer conical surface of the detection sleeve is in uniform contact with the orifice of the straight hole, the coaxiality of the straight hole in the detected workpiece relative to the axis of the cone hole is qualified, otherwise, the coaxiality of the straight hole in the detected workpiece relative to the axis of the cone hole is unqualified.

2. The coaxiality detecting tool of claim 1, wherein a diameter of the inner hole of the detection sleeve is A, and a tolerance of the diameter of the inner hole is (0, +0.003) mm; and a runout of the outer conical surface of the detection sleeve relative to a central axis of the inner hole is 0.005 mm.

3. The coaxiality detecting tool of claim 1, wherein a diameter of the detection column is ()B, =()A0.3+0.036) mm, and a tolerance of the diameter of the detection column is (0, -0.008) mm; a taper of the cone is C, and a tolerance of the taper of the cone is 3; a coaxiality of the detection column relative to a central axis of the cone is 0.005 mm; and a taper of the guiding cone (25) is 25 degrees.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front view of a coaxiality detecting tool of the disclosure.

(2) FIG. 2 is a front view of a measuring column of the coaxiality detecting tool of the disclosure.

(3) FIG. 3 is a front view of a detection sleeve of the coaxiality detecting tool of the disclosure.

(4) FIG. 4 is a front view when the coaxiality detecting tool of the disclosure measures a workpiece.

(5) FIG. 5 is a partial front view of the detected workpiece of the disclosure.

(6) In which: 1hexagon flange nut, 2measuring column, 3detection sleeve, 21threaded column, 22cone, 23cylinder, 24detection column, 25guiding cone.

DETAILED DESCRIPTION

(7) The details and working conditions of the specific device provided by the disclosure will be described below in combination with the accompanying drawings.

(8) The device is composed of a hexagon flange nut 1, a measuring column 2 and a detection sleeve 3, in which the hexagon flange nut 1 is matched with a threaded column 21; and the detection sleeve 3 is matched with a detection column 24.

(9) The measuring column 2 includes the threaded column 21, a cone 22, a cylinder 23, the detection column 24 and a guiding cone 25; the threaded column 21 is on the left of the cone 22, the cylinder 23 is on the right of the cone 22, the detection column 24 is on the right of the cylinder 23, and the guiding cone 25 is on the right of the detection column 24.

(10) The diameter of an inner hole of the detection sleeve 3 is A, and the tolerance is (0, +0.003) mm; and the runout of the outer conical surface relative to the central axis of the inner hole is 0.005 mm.

(11) The diameter of the detection column 24 is B, B=A0.3+0.036) mm, and the tolerance is (0, 0.008) mm; the taper of the cone 22 is C, and the tolerance is 3; the coaxiality of the detection column 24 relative to the central axis of the cone 22 is 0.005 mm; and the taper of the guiding cone 25 is 25 degrees.

(12) In the working process, the cone 22 of the measuring column 2 is matched with the cone hole of the detected workpiece, the hexagon flange nut 1 is matched with the threaded column 21 of the measuring column 2, and the measuring column 2 is fixed on the workpiece; the inner hole of the detection sleeve 3 is matched with the detection column 24, the conical surface of the detection sleeve 3 is in contact with the orifice of the E hole in the workpiece, whether the whole conical surface is in uniform contact with the orifice of the E hole is observed, and if in uniform contact, the detected coaxiality is qualified, otherwise, the detected coaxiality is unqualified.