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Combined plastic forming method of automobile hub and matching forming mold of automobile hub

A technology for plastic forming and automobile wheel hubs, which is applied in the field of forming molds, aluminum alloy or magnesium alloy automobile wheel hubs or disc-shaped parts combined forming, which can solve the problems of large mold size, many production processes and large equipment tonnage, etc. High precision and surface precision, easy operation, and the effect of reducing equipment investment

Inactive Publication Date: 2011-09-14
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide a combined plastic forming method for automobile wheels to solve the problems of many production processes, low production efficiency, large equipment tonnage, large mold size, and production costs in the prior art plastic forming methods for automobile wheels. advanced questions

Method used

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  • Combined plastic forming method of automobile hub and matching forming mold of automobile hub
  • Combined plastic forming method of automobile hub and matching forming mold of automobile hub
  • Combined plastic forming method of automobile hub and matching forming mold of automobile hub

Examples

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Effect test

Embodiment 1

[0039] Embodiment one: if Figure 2 to Figure 5 As shown, the composite plastic forming mold for automobile wheel hub of the present invention comprises a flap closing type lower mold, and the flap closing type lower mold has a flap closing concave mold, and the flap closing concave mold is made up of more than two concave mold petal blocks 5. The lower part of the closing die is provided with a lower punch 7, and an ejector 6 is slidably inserted in the center of the lower punch 7. The petal closing die is jointly surrounded by the lower punch 7 and the ejector 6 when closing the mold. The mold cavity used for forming the wheel hub, the inner wall surface surrounded by the flap-closing die in the mold cavity matches the outer surface contour of the upper rim of the wheel hub to be formed, and the upper surface formed by the lower punch 7 and the ejector 6 is in line with the desired shape. The outline of the outer surface of the spokes of the formed wheel hub is consistent, a...

Embodiment 2

[0057] Embodiment two: if Figure 9 As shown, the difference between the second embodiment and the first embodiment is that each concave mold petal block 5 of the flap-closing die set in the flap-closing lower mold is installed on the lower mold base 13 through a horizontal slideway, and each concave mold What the mold opening and closing driving mechanism of transmission connection on the petal block 5 adopted is the drive cylinder 14 that is connected on the outer surface of each die petal block 5, and this drive cylinder 14 can adopt electric cylinder or hydraulic cylinder.

[0058]The combined forming method of the automobile hub of the present invention combines two forming processes of extrusion and bulging in one process and is formed in two steps through a set of forming dies, wherein the bottom surface of the extrusion upper punch 1 is a plane, and its outer peripheral surface A ring cavity for preforming the hollow tube blank structure is formed between the inner wal...

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Abstract

The invention discloses a combined plastic forming method of an automobile hub and a matching forming mold of the automobile hub. The method comprises the following steps of: 1, forming the automobile hub by using light-alloy blanks through a set of forming mold at two steps under the condition of constant temperature, wherein the forming mold is provided with a split lower mold, two upper extrusion male molds and two upper bulging male molds, and the upper extrusion male molds and the upper bulging male molds are sequentially matched with the split lower mold; 2, matching the blanks in the mold by using the upper extrusion male molds and the upper bulging male molds during forming; 3, pre-forming a spoke part of the hub and the lower part of a rim by adopting an extrusion process; 4, forming the upper part of the rim into a hollow pipe blank; and 5, matching the upper bulging male molds with the lower mold and forming a pre-formed part formed in the step 1 into the hub through the extrusion process. Equipment disclosed by the invention has a simple structure, the deformation resistance of each-step process is lower, the mold size and the equipment tonnage are effectively reduced,the production efficiency is improved, and the production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of plastic forming of light alloys, and in particular relates to a combined forming method of an aluminum alloy or magnesium alloy automobile hub or a disc-shaped part and a matching forming die. Background technique [0002] As a pillar industry of the national economy, the automobile industry develops extremely rapidly. How to limit energy consumption, improve energy utilization, and reduce waste gas emissions is particularly important for protecting the ecological environment and people's living environment. One of the most effective ways to save fuel consumption is to reduce the weight of the vehicle. As the basic load-carrying part of the vehicle, the performance of the vehicle wheel will directly affect the driving safety, energy consumption and appearance quality of the vehicle. [0003] The current light alloy automobile wheels are mainly aluminum alloy wheels and magnesium alloy wheels. The alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21C23/02B21C29/04B21D15/02B21D37/10B21C25/02
Inventor 杨永顺方小朋杨茜虞跨海郭俊卿
Owner HENAN UNIV OF SCI & TECH
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