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Flanging arrangement for wall hole of thin metal pipe

A thin metal flanging technology, applied in the field of processing equipment, can solve the problems of complex flanging process, difficult to improve production efficiency, unsmooth water flow channel, etc., and achieve the effect of simple flanging process and improved work efficiency

Inactive Publication Date: 2005-11-30
夏纪运
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like Figure 5 As shown, the water flow channel of the main pipe with the inner flanging is not smooth due to the inner flanging, which increases the resistance of the water circulation and increases the load of the heat pump; while the water circulation chamber of the main pipe with the outer flanging, The water flow channel is relatively smooth, but the flanging process is relatively complicated. The traditional process of inner mold and outer mold is often used, and the inner mold must be inserted into the thin-walled tube, so it is difficult to improve production efficiency.

Method used

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  • Flanging arrangement for wall hole of thin metal pipe
  • Flanging arrangement for wall hole of thin metal pipe
  • Flanging arrangement for wall hole of thin metal pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example one: such as figure 1 , figure 2 , image 3 As shown, the outer flanging device for thin metal tube wall holes includes a clamp 1 for clamping thin-walled metal tubes, and an outer flanging die 3 corresponding to the thin metal tube wall holes 2, which can be flanged from the outside and the thin metal tube The wall hole 2 is inserted into the flanging tool 4 in the hole to drive the power device for the flanging tool 4 to work. The flanging blade 41 of the flanging tool 4 is arranged on one side of the shank 42 and the transverse direction of the flanging blade 41 is The eccentricity of the cross section along the axis of the tool holder 42 gradually increases from top to bottom. The distance from the distal end of the outer edge of the largest cross section of the flanging blade 41 to the axis of the tool holder 42 is greater than the radius of the unflanged pipe wall hole. The maximum cross section of the blade 41 and the circumscribed circle of the cross secti...

Embodiment 2

[0017] Embodiment 2: The flanging tool of this embodiment is exactly the same as that of the first embodiment, and the difference lies in the power device that drives the flanging tool to work, such as Figure 4 As shown, the power device includes a tool holder 5 that can be clamped on the outer flanging die 3 and is provided with an internal threaded hole. The internal threaded hole of the tool holder 5 is equipped with a tool holder 42 with a thread on the outer surface. The outer end of the handle 42 is fixedly provided with a rotating handle 6.

[0018] The technical solution of this embodiment is a manual processing method, and its working process is as follows: first, the clamp 1 clamps the thin-walled metal tube with the processed hole, the thin metal tube wall hole 2 is facing the outer flanging die 3, and the flanging tool is firstly clamped The head of 4 is inserted into the hole 2 of the thin metal pipe wall, and the knife holder 5 is clamped on the outer flanging die 3...

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PUM

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Abstract

The invention discloses flanging device for thin metal pipe wall hole, which comprises clamp used to hold thin metal pipe, corresponding flanging mould, flanging cutter that can insert from flanging mould and wall hole to hole inside, power driver for flanging cutter; set flanging blade on one side of knife handle with eccentric of cross section larger along handle axis, and the distance from promote end of out margin of the maximum section to handle axis is larger than the radius of wall hole, the circumcircles of the maximum section and handle section are less than diameter of wall hole. This invention cancels inner mould, with simple technique, and improves greatly the work efficiency.

Description

Technical field [0001] The invention relates to a processing equipment, in particular to a device for flanging the edge of a hole on the wall of a thin-walled metal pipe outwards. Background technique [0002] At present, the water cavity of the copper-aluminum composite radiator uses thin-walled copper pipes. During the processing process, many holes for communicating gas or liquid need to be processed in the copper pipe, and a connecting pipe is welded between the holes of the two opposite main pipes. For heat exchange. In order to improve the welding strength, it is required to flange the edge of the hole inwardly or outwardly. Such as Figure 5 As shown, the water flow channel of the main pipe with inward flanging is not smooth due to the internal flanging, which increases the resistance of water circulation and increases the load of the heat supply pump; while the circulation water cavity of the main pipe with outward flanging, The water flow channel is relatively smooth, bu...

Claims

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Application Information

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IPC IPC(8): B21D19/12
Inventor 夏纪运宗涛
Owner 夏纪运
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