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Pipe joint expanded connection expanded sleeve mould

A technology for expanding sleeve die and pipe joint, which is applied in the field of die for bulging at the end, can solve the problems of low qualified product rate and low production efficiency of pipe fitting connection components, and achieves avoiding the difficulty of cleaning welding slag in the welding seam and high production efficiency. , the effect of improving product quality

Inactive Publication Date: 2013-06-19
柳州力通汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pipe joint expansion joint expansion mold, use the pipe joint expansion expansion joint expansion mold to bulge the end of the pipe body, and use the bulging pipe body end and pipe joint The pipe fitting connection assembly composed of expansion joint can solve the problems of low qualified product rate and low production efficiency of the existing welded pipe fitting connection assembly

Method used

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  • Pipe joint expanded connection expanded sleeve mould
  • Pipe joint expanded connection expanded sleeve mould
  • Pipe joint expanded connection expanded sleeve mould

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 Shown is to complete the bulging pipe body end 7, and the diameter D0 of the inner hole of the pipe body end 7 is 18.2 millimeters;

[0021] Such as figure 2 , image 3 and Figure 4 The pipe joint expansion expansion sleeve shown includes a plurality of punches with an expanding part and a forming punch 9 with a shaping part; the plurality of punches are respectively the first punch, the second punch and the third punch. Punches, the front section of the expansion tube part of these punches is a cylindrical guide post 4-1, and the middle section connected with the front section is a cylindrical bulging post 4-2 with a diameter greater than the guide post 4-1, and the middle section The connected rear section is a cylindrical positioning column 4-3 with a diameter larger than the bulging column 4-2, and a smooth transition is connected between the bulging column 4-2 and the guide column 4-1. Cone, the diameters of the bulging column 4-2 and the pos...

Embodiment 2

[0023] Such as figure 1 Shown is to complete the bulging pipe body end 7, and the diameter D0 of the inner hole of the pipe body end 7 is 18.22 millimeters;

[0024] Such as figure 2 , image 3 and Figure 4 The pipe joint expansion expansion sleeve shown includes a plurality of punches with an expanding part and a forming punch 9 with a shaping part; the plurality of punches are respectively the first punch, the second punch and the third punch. Punches, the front section of the expansion tube part of these punches is a cylindrical guide post 4-1, and the middle section connected with the front section is a cylindrical bulging post 4-2 with a diameter greater than the guide post 4-1, and the middle section The connected rear section is a cylindrical positioning column 4-3 with a diameter larger than the bulging column 4-2, and a smooth transition is connected between the bulging column 4-2 and the guide column 4-1. Cone, the diameters of the bulging column 4-2 and the po...

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Abstract

The invention discloses a pipe joint expanded connection expanded sleeve mould and relates to the technical field of mould manufacturing. The pipe joint expanded connection expanded sleeve mould comprises a plurality of punches which are provided with expanded pipe parts, a forming punch which is provided with a forming part, an upper clamp mould arranged in an upper clamp mould seat, and a lower clamp mould arranged in a lower clamp mould seat. When the upper clamp mould and the lower clamp mould are in a mould combining state, a forming cavity is arranged on a mould cavity between the upper clamp mould and the lower clamp mould. The shape of the forming cavity corresponds to the shape of the forming part of the forming punch. A pipe body to be expanded is arranged in the mould cavity in a penetrating mode, the plurality of punches of the forming cavity are punched in so that inner holes in the end portion of the pipe body are expanded in sequence, and then the forming punch is punched into the forming cavity so that the inner holes in the end portions of the pipe body are formed by expanding and pre-forming of hole openings by chamfering. Compared with the prior art, according to the pipe joint expanded connection expanded sleeve mould, the end portion of the pipe body can be subjected to bulging, the end portion of the pipe body, which is subjected to bulging and the pipe joint are connected in an expanded mode to form a pipe fitting connecting component, and the problems that an existing welded pipe fitting connecting component is low in qualified product rate, and production efficiency is low can be solved.

Description

technical field [0001] The invention relates to the technical field of mold manufacturing, in particular to a mold used for bulging the end of a pipe body in a pipe fitting assembly of a vehicle air conditioner. Background technique [0002] The pipe fitting assembly of the vehicle air conditioner is an important part to connect the components of the vehicle air conditioner, and its quality directly affects the performance of the vehicle air conditioner; the existing pipe fitting assembly of the vehicle air conditioner generally welds the pipe joint on the pipe on the end of the body. The pipe fitting connection assembly with this structure has the following problems during use: 1. Since the pipe joint and the end of the pipe body are connected by welding, the welding slag in the weld seam is difficult to clean due to the small inner holes of the pipe body and pipe joint , it is prone to defects such as pipe deformation, welding blockage, welding leakage, etc., and the qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D39/04
Inventor 王松罗恒伟
Owner 柳州力通汽车科技有限公司
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