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Quick test tool for expanding tube head

A detection tool and expansion head technology, which is applied in the direction of mechanical diameter measurement, etc., can solve the problems of small distance between expansion rods, increase of manual working hours, and affect production efficiency, so as to achieve accurate identification, save working hours and avoid misjudgment.

Inactive Publication Date: 2015-04-08
CHINA YANGZI GRP CHUZHOU YANGZI AIR CONDITIONERCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The micrometer direct measurement method is time-consuming and laborious to operate, seriously affecting production efficiency, and compared to the operator, it cannot accurately identify whether the expansion head is qualified or not
[0005] For the expander head installed on the expander equipment, due to the small distance between the expander rods (where the expander head is installed), it is difficult to measure the expander head in the middle with a micrometer
If the expansion head is removed and then measured, the labor hours will be doubled

Method used

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  • Quick test tool for expanding tube head
  • Quick test tool for expanding tube head

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Experimental program
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Embodiment Construction

[0021] like figure 1 , 2 As shown, the rapid detection tool for the expander head includes a through gauge 1 and a stop gauge 2. The inner diameter of the pass gauge 1 is the maximum outer diameter of the expander head +0.02mm, and the inner diameter of the stop gauge 2 is the innermost diameter of the expander head -0.02mm. The outer diameter of the gauge and the stop gauge is 20mm, and the height is 15mm; the pass gauge and the stop gauge are provided with a radial handle 4 that can be detachably connected.

[0022] In specific implementation, for example, the specifications of the expander head currently used by Yangzi Air Conditioner Co., Ltd. are φ6.72mm and φ9.16mm, and the deviation range of the expander head is ±0.02mm. Therefore, the specification (inner diameter) of the go-no-go gauge is determined to be φ6. 70, φ9.14, φ6.74, φ9.18mm.

[0023] The inner diameter deviation of the go-no-go gauge is made according to ±0.001mm, which is an order of magnitude higher tha...

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PUM

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Abstract

The invention discloses a quick test tool for an expanding tube head. The quick test tool is characterized by comprising a through gauge and a stopping gauge, wherein an inner diameter of the through gauge is equal to the result of the maximum outer diameter of the expanding tube head adding 0.02mm; the outer diameter of the through gauge is equal to the result of the maximum outer diameter of the expanding tube head subtracting 0.02mm; the outer diameters of the through gauge and the stopping gauge are 20mm and the heights of the through gauge and the stopping gauge are 15mm; a symmetrical plane is arranged on the outer surfaces of the through gauge and the stopping gauge along an axial direction. The quick test tool provided by the invention can be used for quickly testing the expanding tube head and directly identifying whether the expanding tube head is qualified, and is fit for the expanding tube head mounted on an expanding tube device.

Description

technical field [0001] The invention relates to the field of processing quality control of finned tube heat exchangers, in particular to a rapid detection tool for an expanding tube head. Background technique [0002] The expansion head is a key part of the tube expansion processing of the finned tube heat exchanger. Whether the expansion head is qualified or not will directly affect the tightness of the heat exchanger expansion tube and affect the performance of the heat exchanger and even the entire air conditioner (machine). . [0003] The method of testing the expander head in the heat exchanger processing industry, whether it is the operator's self-inspection or the usual random inspection, generally uses an outer diameter micrometer as a measuring tool, and uses the method of measuring the outer diameter one by one to check whether the expander head meets the requirements. [0004] The micrometer direct measurement method is time-consuming and laborious to operate, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
Inventor 甘红军
Owner CHINA YANGZI GRP CHUZHOU YANGZI AIR CONDITIONERCO