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Riveting die of water pump shell with aluminum ring

A shell and aluminum ring technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of high riveting pressure, difficulty in maintaining stable riveting quality, and aluminum ring falling off.

Inactive Publication Date: 2009-06-17
WUHU DONGDA MOTORCAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When making the water pump casing assembly, the aluminum ring often falls off due to the loose fit between the water pump casing and the aluminum ring after press-fitting, and riveting tooling is required for riveting between the casing and the aluminum ring; the existing water pump casing The riveting mold for riveting the body and the aluminum ring includes a pressing mechanism, an upper template, a ejector rod, a lower template, a mandrel and a plurality of riveting rods, and each riveting rod is arranged at intervals below the upper template, and each riveting The lowermost end of the joint rod is a conical pressing head. Such riveting tooling requires a large riveting pressure, and the riveting quality is difficult to maintain stable

Method used

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  • Riveting die of water pump shell with aluminum ring
  • Riveting die of water pump shell with aluminum ring

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Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, the riveting mold for riveting the water pump casing and the aluminum ring of the present invention includes an upper template 1 and a plurality of riveting rods 2, and each riveting rod 2 is composed of a rod body 4 and a pressing head at the lowermost end of the rod body 4. The structure of the pressing head of each riveting rod 2 described is that the bottom end of the truncated cone has a pressing wedge 5, and the bottom surface of the frustum of the frustum of the pressing wedge 5 is a slope 6, and the upper end of each riveting rod 2 is a The threaded section 3 of the threaded connection of the upper formwork 1. With such a structure, the pressing head of the riveting rod can be pressed into the pressure groove of the aluminum alloy water pump shell to be deformed by applying a small riveting force, thereby ensuring the riveting quality and improving the production efficiency.

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Abstract

The invention discloses a riveting die riveted by a water pump housing and an aluminum ring. The riveting die comprises an upper moulding board (1) and a plurality of riveting rods (2), wherein each riveting rod (2) consists of a rod body (4) and a pressing head at the lowest end of the rod body (4), the pressing head of each riveting rod (2) has a structure that a pressing wedge (5) is arranged on one side at the bottom of a cone frustum, and the bottom surface of the cone frustum at the root of the pressing wedge (5) is an inclined surface (6). The riveting die riveted by the water pump housing and the aluminum ring adopts the structure so that the pressing head of the riveting rod can be pressed into a pressing groove of the aluminum alloy water pump housing and extruded as well as deformed by applying a small riveting force, thereby guaranteeing the riveting quality and improving the production efficiency.

Description

technical field [0001] The invention relates to a riveting tool, in particular to a riveting die for riveting a water pump shell and an aluminum ring. Background technique [0002] When making the water pump casing assembly, the aluminum ring often falls off due to the loose fit between the water pump casing and the aluminum ring after press-fitting, and riveting tooling is required for riveting between the casing and the aluminum ring; the existing water pump casing The riveting mold for riveting the body and the aluminum ring includes a pressing mechanism, an upper template, a ejector rod, a lower template, a mandrel and a plurality of riveting rods, and each riveting rod is arranged at intervals below the upper template, and each riveting The lowermost end of the joint rod is a conical press-fit head. Such a riveting tool requires a large riveting pressure, and it is difficult to maintain a stable riveting quality. Contents of the invention [0003] The technical probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/00B21D37/04B21D39/00
Inventor 李宝胜庞志平刘永章骆玉河宛新芬韩慧
Owner WUHU DONGDA MOTORCAR IND
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