Quality inspection method applied to riveting portion of joint column and plate member

A technology of quality inspection and connecting columns, which is applied in the direction of applying stable torsion to test the strength of materials, measuring devices, instruments, etc., can solve the problems of design quality inspection methods, and achieve the effect of simple and easy detection and easy promotion

Inactive Publication Date: 2018-12-18
NINGBO SANXING INTELLIGENT ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no unified and standardized quality inspecti

Method used

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  • Quality inspection method applied to riveting portion of joint column and plate member
  • Quality inspection method applied to riveting portion of joint column and plate member
  • Quality inspection method applied to riveting portion of joint column and plate member

Examples

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Embodiment

[0026] A quality inspection method applied to the riveted part of the connecting column and the plate, the riveting end 4 of the connecting column 1 is thinned along the wall thickness direction to form an annular stepped surface 3 against the lower surface of the plate 2, The riveted end 4 of the connecting column 1 is installed in the mounting hole 5 of the panel 2, and the top of the riveted end 4 of the connecting column 1 is riveted and extended to form a nail head 6 to connect the connecting column 1 and the panel 2 together, In this embodiment, the connection column 1 is the current copper column of the electric meter, the plate part 2 is a copper sheet, and the initial length L and width W of the top of the riveted end 4 of the current copper column are 4.4mm and 5mm respectively, and the method includes the following steps :

[0027] (1) Detection of the extension size of the riveting part: measure the length L and width W of the extended top of the current copper col...

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Abstract

A quality inspection method applied to a riveting portion of a joint column and a plate member comprises the following steps: (1) detection of an extending size of the riveting portion; (2) detectionof the strength of the riveting portion: marking a pattern on the surface of the riveting portion of a product, wherein a part of the pattern is located on the joint column, and the other part is located on the plate member; making the riveting portion of the product face upward, fixing one end of the joint column away from the riveting portion by a fixture, and applying specified torque to the plate member; determining that the strength of the riveting portion of the product is unqualified if the pattern marked on the surface of the riveting portion shifts, and otherwise determining that thestrength of the riveting portion of the product is qualified; and (3) metallographic detection of the riveting portion: cutting the riveting portion along the axial direction of the joint column, andperforming metallographic examination analysis on the cut section. The quality inspection method applied to the riveting portion of the joint column and the plate member is standardized and simple.

Description

technical field [0001] The invention relates to the technical field of quality inspection of fasteners, in particular to a quality inspection method applied to the riveted part of a connecting column and a plate. Background technique [0002] Riveting is a common fastening method. At present, the current copper column 1a on the electric meter is also fixed on the copper sheet 2a by riveting. The assembly schematic diagram is as follows figure 1 As shown, the riveted end 4a of the current copper column 1a is thinned along the wall thickness direction to form an annular stepped surface 3a against the lower surface of the copper sheet 2a, and the riveted end 4a of the current copper column 1a is installed on the copper In the installation hole 5a of the sheet 2a, the top of the riveted end 4a of the current copper column 1a is roughly riveted and extended by the axial force of the rivet gun to form a nail head 6a, so that the current copper column 1a is formed by using the nail...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01B21/02G01N3/22
CPCG01B21/02G01N3/22G01N33/00
Inventor 毛犇赖济民胡钱波金海波魏章波
Owner NINGBO SANXING INTELLIGENT ELECTRIC
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