Method and device for punching multiple holes on square tube, and aerator manufactured therefor

A technology of aerator and punch, applied in the field of aerator, fishery and aquaculture machinery, namely aerator, can solve the problems of difficult hole position control, many burrs on the reverse side, slow drilling efficiency, etc. Bit accurate effects

Active Publication Date: 2011-04-13
ZHEJIANG FORDY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual drilling method is to drill with a drilling machine. Because the thickness of the pipe wall is thin and the reverse side has many burrs, the drilling efficiency is slow and the hole position is not easy to control.

Method used

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  • Method and device for punching multiple holes on square tube, and aerator manufactured therefor
  • Method and device for punching multiple holes on square tube, and aerator manufactured therefor
  • Method and device for punching multiple holes on square tube, and aerator manufactured therefor

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Embodiment Construction

[0025] The present invention will be further described below with specific examples, see Figure 1-7 :

[0026] A method for punching holes in a square tube. Put the square tube (workpiece) into the mold. After the punch goes down to punch the upper hole, continue to punch the lower hole. When punch 2 goes down, the waste in the upper hole is punching The front of the head 2 in the advancing direction is pressed against the outer die 9 by the punch 2 and separated from the workpiece 8 with the waste material below.

[0027] A device for punching holes in a square tube, which is mainly composed of punch 2, inner die 7, outer die 9, upper template 4, lower template 11, support member 5, positioning member, etc., upper template 4 is equipped with guide sleeve 3 , The punch 2 corresponds to the inner die 7 and the outer die 9 through the guide sleeve 3, the inner die 7 is mounted on the square bar 23, the square bar 23 and the inner die 7 can be made into one body, and the outer die 9...

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Abstract

The invention relates to a method for punching multiple holes on a square tube, which comprises the following steps that: a workpiece is put into a mould; a punch downward punches an upper hole and then continues to downward punch a lower hole; when the punch is downward, scraps of the upper hole are pressed to an outer die by the punch in front of the punch heading direction; and the scraps of the upper hole and lower scraps are separated from the workpiece together. A device for punching the multiple holes on the square tube mainly comprises the punch, an inner die, the outer die, an upper mold plate, a lower mold plate, supporting pieces, positioning pieces and the like, wherein the workpiece is arranged between the upper mold plate and the lower mold plate; the inner die is arranged in the workpiece; and both sides of the workpiece are provided with the positioning pieces. When the punch is downward, the scraps of the upper hole are pressed to the outer die by the punch in front of the punch heading direction, and the scraps of the upper hole and the lower scraps are separated from the workpiece together. The positioning pieces on both sides are rollers, and roller shafts are the supporting pieces. The method and the device multiply improve the hole processing efficiency, and can be used for punching holes on circular tubes and the square tubes, and the hole position is accurate.

Description

Technical field [0001] The invention belongs to the technical field of fish farming machinery, that is, aerators, and in particular relates to a method and device for punching holes in a square tube and an aerator manufactured by using the same. Background technique [0002] The aerator is a device for life-saving and growth of fish and shrimp in aquaculture. The brackets of the existing mechanical aerators are mainly welded and formed by pipes and connected to the floating vessel; bolts are required to install the bearing seat and the main engine, and holes must be drilled in the pipes. The usual drilling method is to use a drill press. Because the pipe wall is thinner and the back surface has more burrs, the drilling efficiency is slow and the hole position is not easy to control. Summary of the invention [0003] The purpose of the present invention is to provide a method and device for punching holes in a square tube and an aerator manufactured by the method, which doubles th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D28/28B21D28/34A01K63/04
Inventor 吴为国
Owner ZHEJIANG FORDY MACHINERY
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