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Symmetry rapid test device

A testing device and symmetry technology, applied in the direction of measuring device, mechanical device, mechanical measuring device, etc., can solve the problem of inconvenient detection of the symmetry between the keyway and the shaft center, and achieve reliable detection results, improve work efficiency, and manufacture low cost effect

Pending Publication Date: 2019-09-27
TIANJIN RAILWAY SIGNAL
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AI Technical Summary

Problems solved by technology

[0002] The gear shaft is the key component of the transmission force in the manual switch assembly of the railway signal switch machine. Its shape is a stepped shaft with a thick middle and thin ends. The thick shaft in the middle is provided with a keyway. The symmetry between the keyway and the axis It is a key factor affecting the assembly of the gear shaft and related parts. Based on the conventional detection equipment, it is not convenient to detect the symmetry between the keyway and the shaft center. Therefore, it is necessary to design a special detection measuring tool to meet the use requirements.

Method used

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a symmetry rapid test device. A detection hole which penetrates through the front portion and back portion of a positioning detection block is formed in the center of the positioning detection block; the lower end surface of the detection hole is a V-shaped surface which forms a left observation surface and a right observation surface which intersect at the lower end and are in symmetry in a left-and-right direction; a vertical guide groove is formed right above the intersection of the left observation surface and the right observation surface; the vertical guide groove extends to the upper end surface of the positioning detection block; the vertical guide groove is communicated with the detection hole; the space of the detection hole is large enough to accommodate a workpiece shaft; and the workpiece shaft has enough floating space in the detection hole. With the symmetry rapid test device of the invention adopted, the problem that the symmetry of a shaft and a key slot is inconvenient to detect is solved. The symmetry rapid test device has the advantages of structure simple, convenient and rapid operation, reliable detection result, low manufacturing cost and greatly improved working efficiency.

Description

technical field [0001] The invention belongs to the field of mechanical processing inspection, and in particular relates to a rapid inspection device for symmetry. Background technique [0002] The gear shaft is the key component of the transmission force in the manual switch assembly of the railway signal switch machine product. Its shape is a stepped shaft with a thick middle and thin ends. The thick shaft in the middle is provided with a keyway. The symmetry between the keyway and the axis It is a key factor affecting the assembly of the gear shaft and related parts. Based on the conventional detection equipment, it is not convenient to detect the symmetry between the keyway and the shaft center. Therefore, it is necessary to design a special detection measuring tool to meet the use requirements. Contents of the invention [0003] In view of this, the present invention aims to propose a rapid inspection device for symmetry. [0004] In order to achieve the above object...

Claims

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Application Information

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IPC IPC(8): G01B5/252G01B5/00
CPCG01B5/252G01B5/0018
Inventor 马爱民胡西科
Owner TIANJIN RAILWAY SIGNAL
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