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T-shaped member extruding and connecting process and special pressing and forming cutter

A technology of forming knives and components, which is applied in the field of metal parts processing, can solve the problems of affecting accuracy, ensuring accuracy, reducing cost, unfavorable deformation, etc., and achieves the effects of reducing production cost, improving accuracy, and simple and reliable process

Inactive Publication Date: 2004-10-20
NINGBO HOYEA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many disadvantages in this process: welding high temperature, welding stress will produce deformation, affecting the original precision; in order to eliminate stress, the annealing process has to be increased; Processing is much more difficult than the original single-piece processing; in short, it is not good for ensuring accuracy and reducing costs

Method used

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  • T-shaped member extruding and connecting process and special pressing and forming cutter
  • T-shaped member extruding and connecting process and special pressing and forming cutter
  • T-shaped member extruding and connecting process and special pressing and forming cutter

Examples

Experimental program
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Effect test

Embodiment 2

[0011] Embodiment two, the difference between this embodiment and embodiment one is that the edge angle of the used pressure-shaped knife 2 is the lower limit value of the range, and the force applied by the press (not shown) to the pressure-shaped knife 2 is relatively small . When extruding by the first step of the above-mentioned first embodiment, with the sharper sharp knife 2 ' of blade, the blade angle α of sharp knife 2 ' 1 and alpha 2 , the value is α 1 =45°α 2 =25°, at pressure F 1 = Under the action of 50 tons, press according to the above, so that the upper and lower valve bodies are fixed into a T-shaped whole, such as image 3 shown in I. In the second step, when extruding according to the second step of the above-mentioned first embodiment, the shaping knife 2 is changed into a blunt knife 2 " with a blunt edge, and the edge angle of the shaping knife is α 1 '=46°α 2 '=28°, the pressure is F 2 =51 tons, for the second extrusion, due to F 2 >F 1 , α 1 '...

Embodiment 3

[0012] Embodiment three, the difference between this embodiment and embodiment one is that the edge angle of the used pressure-shaped knife 2 is the upper limit value of the range, and the force applied by the press (not shown) to the pressure-shaped knife 2 is relatively large . When extruding by the first step of the above-mentioned first embodiment, with the sharper sharp knife 2 ' of blade, the blade angle α of sharp knife 2 ' 1 and alpha 2 , the value is α 1 =44°α 2 =40°, at pressure F 1 = Under the action of 56 tons, press according to the above, so that the upper and lower valve bodies are fixed into a T-shaped whole, such as image 3 shown in I. In the second step, when extruding by the second step of the above-mentioned first embodiment, the shaping knife 2 is changed into a blunt knife 2 " with a blunt edge, and the edge angle of the shaping knife 2 " is α 1 '=46°α 2 '=43°, the pressure is F 2 =57 tons, for the second extrusion, due to F 2 >F 1 , α 1 '>α ...

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Abstract

The special pressing and forming cutter is a cylinder with lower levered circular edge. The technological process includes assembling the machined upper member and lower member to a T-shaped assembly, pressing in one press the joint of two, upper and lower, members via the special pressing and forming cutter to cut and extrude centripetally and to join the two members together. The simple technological process of the present invention has high product precision and low production cost without the demerits similar to those in welding process.

Description

technical field [0001] The invention relates to metal parts processing technology, in particular to a crimping process and a special tool for T-shaped components with certain plastic metal materials. Background technique [0002] In the processing of existing T-shaped components (such as the valve body), the welding method is generally used for the fixing method between the vertical part (the upper part of the valve body) and the horizontal part (the lower seat of the valve body), that is, the welding method will be processed separately. The processed vertical pieces and horizontal pieces are welded into a T-shaped whole. There are many disadvantages in this process: welding high temperature, welding stress will produce deformation, affecting the original precision; in order to eliminate stress, the annealing process has to be increased; Processing is much more difficult than the original single-piece processing; in short, it is not good for ensuring accuracy and reducing c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D39/00B21D41/04B23P9/00B23P15/00
Inventor 翁振涛
Owner NINGBO HOYEA MACHINERY MFG