CN103743327A

CN103743327A - Coaxiality detector

Info

Publication number: CN103743327A
Application number: CN201310687392.9A
Authority: CN
Inventors: 朱胜雷
Original assignee: Wuxi Yutian Precision Tool Co Ltd
Current assignee: Wuxi Yutian Precision Tool Co Ltd
Priority date: 2013-12-13
Filing date: 2013-12-13
Publication date: 2014-04-23

Abstract

The invention relates to a coaxiality detector which is characterized by comprising a first detection outer cylinder, a second detection outer cylinder, a threaded outer cylinder and a knurled outer cylinder, wherein the first detection outer cylinder and the second detection outer cylinder have different diameters, the diameter of the second detection outer cylinder is equal to the diameter of the knurled outer cylinder, the second detection outer cylinder is arranged between the first detection outer cylinder and the threaded outer cylinder, and the threaded outer cylinder is arranged between the second detection outer cylinder and the knurled outer cylinder. The coaxiality detector of the invention is used for measuring a hole band circular arc surface and is high in measurement precision, easy in operation and low in cost.

Description

A kind of coaxiality check fixture

Technical field

The present invention relates to a kind of measuring tool, particularly a kind of gauge head for concentricity tester.

Background technology

Coaxiality check fixture is the instrument for the right alignment of test piece, to differentiate the qualification of workpiece.Usually, test piece comprises screw screw, rivet, screw rod etc.

In prior art, usually coaxiality tester is for comparatively simple, the regular workpiece of test structure, for the workpiece of structure irregularity, such as, pore area arc surface workpiece, the gauge head of existing coaxiality tester is difficult to meet test request, Given this, is necessary very much to provide a kind of new right alignment instrument to meet existing demand.

Summary of the invention

The object of the invention is to defect and deficiency for prior art, a kind of coaxiality check fixture is provided, for right alignment, detect, measure aperture φ 6.55, the right alignment of φ 2.55 and screw thread, easy to detect.

For achieving the above object, the present invention is by the following technical solutions:

A kind of coaxiality check fixture, described coaxiality check fixture comprises that the first detection outside cylinder, second detects outside cylinder, screw thread outside cylinder and annular knurl outside cylinder, described the first detection outside cylinder, second detects outside cylinder and possesses different diameters, the described second diameter that detects outside cylinder equals the diameter of described annular knurl outside cylinder, described second detects outside cylinder is located between described the first detection outside cylinder and described screw thread outside cylinder, and described screw thread outside cylinder is located at described second and is detected between outside cylinder and described annular knurl outside cylinder.

Further, described first detect the diameter of outside cylinder be less than described second detect outside cylinder diameter 1/2nd.

Further, the described first diameter that detects outside cylinder is 2.55mm.

Further, the described second diameter that detects outside cylinder is 6.55mm.

Further, the diameter of described screw thread outside cylinder is greater than the diameter of described annular knurl outside cylinder.

Further, the described first development length that detects outside cylinder equates with the described second development length that detects outside cylinder.

Further, the development length of described screw thread outside cylinder is greater than the development length of described the first detection outside cylinder.

Further, the development length of described screw thread outside cylinder is less than the development length of described annular knurl outside cylinder.

Further, the development length of described screw thread outside cylinder equal described annular knurl outside cylinder development length 1/2nd.

Beneficial effect of the present invention is: coaxiality check fixture of the present invention, for right alignment, detect, and measure aperture φ 6.55, the right alignment of φ 2.55 and screw thread, easy to detect, measuring accuracy is high, and easy and simple to handle, with low cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of coaxiality check fixture of the present invention.

In figure: 10, coaxiality check fixture, 11, first detect outside cylinder, and 12, second detect outside cylinder, and 13, screw thread outside cylinder, 14, annular knurl outside cylinder.

Embodiment

Below in conjunction with accompanying drawing, the present invention is further illustrated.

Cooperation is with reference to shown in Fig. 1, in the present invention's one specific embodiment, a kind of coaxiality check fixture, described coaxiality check fixture 10 comprises the first detection outside cylinder 11, second detects outside cylinder 12, screw thread outside cylinder 13 and annular knurl outside cylinder 14, described first detects outside cylinder 11, second detects outside cylinder 12 possesses different diameters, the described second diameter that detects outside cylinder 12 equals the diameter of described annular knurl outside cylinder 14, described second detects outside cylinder 12 is located between described the first detection outside cylinder 11 and described screw thread outside cylinder 13, described screw thread outside cylinder 13 is located at described second and is detected between outside cylinder 12 and described annular knurl outside cylinder 14.

In present embodiment, described first detect the diameter of outside cylinder 11 be less than described second detect outside cylinder 12 diameter 1/2nd.Particularly, in present embodiment, the described first diameter that detects outside cylinder 11 is 2.55mm.The described second diameter that detects outside cylinder 12 is 6.55mm.

In present embodiment, it is worth mentioning that, the diameter of described screw thread outside cylinder 13 is greater than the diameter of described annular knurl outside cylinder 14.Further, the described first development length that detects outside cylinder 11 equates with the described second development length that detects outside cylinder 12.Wherein, in concrete embodiment, the development length of described screw thread outside cylinder 13 is greater than the development length of described the first detection outside cylinder 11.

More preferably, the development length of described screw thread outside cylinder 13 is less than the development length of described annular knurl outside cylinder 14.The development length of described screw thread outside cylinder 13 equal described annular knurl outside cylinder 14 development length 1/2nd.By designing such structure, detect fast, precision is high.

The above is only preferred embodiments of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.

Claims

1. a coaxiality check fixture, it is characterized in that, described coaxiality check fixture comprises that the first detection outside cylinder, second detects outside cylinder, screw thread outside cylinder and annular knurl outside cylinder, described the first detection outside cylinder, second detects outside cylinder and possesses different diameters, the described second diameter that detects outside cylinder equals the diameter of described annular knurl outside cylinder, described second detects outside cylinder is located between described the first detection outside cylinder and described screw thread outside cylinder, and described screw thread outside cylinder is located at described second and is detected between outside cylinder and described annular knurl outside cylinder.

2. coaxiality check fixture according to claim 1, is characterized in that, described first detect the diameter of outside cylinder be less than described second detect outside cylinder diameter 1/2nd.

3. coaxiality check fixture according to claim 2, is characterized in that, the described first diameter that detects outside cylinder is 2.55mm.

4. coaxiality check fixture according to claim 3, is characterized in that, the described second diameter that detects outside cylinder is 6.55mm.

5. coaxiality check fixture according to claim 1, is characterized in that, the diameter of described screw thread outside cylinder is greater than the diameter of described annular knurl outside cylinder.

6. coaxiality check fixture according to claim 1, is characterized in that, the described first development length that detects outside cylinder equates with the described second development length that detects outside cylinder.

7. coaxiality check fixture according to claim 1, is characterized in that, the development length of described screw thread outside cylinder is greater than the development length of described the first detection outside cylinder.

8. coaxiality check fixture according to claim 1, is characterized in that, the development length of described screw thread outside cylinder is less than the development length of described annular knurl outside cylinder.

9. coaxiality check fixture according to claim 8, is characterized in that, the development length of described screw thread outside cylinder equal described annular knurl outside cylinder development length 1/2nd.