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Hub forging die

A wheel hub forging mold and mold body technology, which is applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of waste of resources, easily damaged molds, low mechanical strength, etc., and achieve storage The effect of improving space utilization, increasing service life and improving structural strength

Active Publication Date: 2016-10-12
宁波路威汽车轮业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the methods of manufacturing aluminum alloy wheels at home and abroad are mainly divided into two categories: one is forging, and the other is casting. However, the casting method products have serious defects such as shrinkage cavity, porosity, and pores, low mechanical strength, and low yield. , foreign countries have basically eliminated
Traditional forging dies adopt integral structure, and each type of wheel hub must correspond to a pair of dies, so the storage space, management, maintenance and manufacturing costs of the dies are very huge, and the dies that have been placed for a long time are very easy to damage, and when After the overall structural mold is damaged by pressing, it is necessary to replace the upper and lower molds as a whole, and the replacement cost is also very huge, which is labor-intensive, time-consuming and material-intensive, and increases the production cost of aluminum alloy wheels, resulting in a great waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, a kind of wheel hub forging mold, see attached figure 1 , including the upper mold 2 and the lower mold 1, the structure of the upper mold 2 firstly refers to the attached figure 2 , including upper template 21, upper mold body 22, upper mold core 23 and upper mold ejector 24, see attached image 3 , the upper mold body 22 is locked on the upper template 21 after passing through the fifth countersunk hole 211 through the fifth countersunk bolt 75, see the attached Figure 4 with 5 , a circular protrusion 231 is provided at the upper mold core 23, a circular depression 222 is provided at the upper mold body 22, and the upper mold body 22 and the upper mold core are realized by the cooperation of the circular protrusion 231 and the circular depression 222. 23, and through the first countersunk bolt 71 (the first locking member) through the first countersunk hole 221 (the first avoidance structure), the locking and fixing of the upper mold body 22 and the ...

Embodiment 2

[0040] Embodiment 2, a wheel hub forging die, differs from Embodiment 1 in that, see attached Figure 10 , the thickness of the annular insert 5 at this time will be less than the depth of the concave ring groove 4, that is, the rim width of the wheel hub when finally forged will be greater than the rim width in embodiment 1, and the annular insert 5 can be replaced Thickness (not exceeding the groove depth of the recessed ring groove 4) can realize changing the width of the wheel hub rim after the final forging. When replacing the ring insert 5, the unsealing screw (not shown in the figure) is screwed into the unsealing threaded hole 61, eject the annular insert 5 from the recessed ring groove 4, then replace the annular insert 5 with the required thickness into the recessed ring groove 4, and fix the annular insert 5 on the recessed ring by the second countersunk bolt 72 slot 4.

Embodiment 3

[0041] Embodiment 3, a wheel hub forging die, differs from Embodiment 1 in that, see the attached Figure 11 , no annular insert 5 is placed in the concave ring groove 4, that is, the rim width of the forged wheel hub at this time will be equal to the ring cavity 3 plus the depth of the concave ring groove 4, which can be forged when designing the mold Maximum rim width value.

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Abstract

The invention discloses a hub forging die which comprises an upper die and a lower die. The upper die comprises an upper die plate and an upper die body installed on the upper die plate. The upper die body is detachably connected with an upper die core. A locating structure capable of matching the upper die body with the upper die core and a locking structure capable of locking the upper die body and the lower die core are arranged between the upper die core and the upper die body. The upper die body and the upper die core are arranged to be of a split structure, the upper die core and the upper die body are detachably connected and fixed, and therefore hubs with different spoke shapes can be forged through one die simply by replacing the upper die core.

Description

technical field [0001] The invention relates to the field of forging, more specifically, it relates to a die for forging an aluminum alloy wheel hub. Background technique [0002] The world's automobile industry is developing in the direction of light weight, high speed, safety, energy saving, comfort and less environmental pollution, so the amount of aluminum alloy parts used in automobiles is increasing day by day. As one of the important parts in the driving system of the car, the wheel hub is also a kind of security device with high requirements. It not only bears the weight of the car, but also reflects the appearance of the car. In the past 10 years, the average annual growth rate of the global aluminum alloy automobile wheel production has reached 7.6%. [0003] At present, the methods of manufacturing aluminum alloy wheels at home and abroad are mainly divided into two categories: one is forging, and the other is casting. However, the casting method products have se...

Claims

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Application Information

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IPC IPC(8): B21J13/02
CPCB21J13/02
Inventor 董祥义张涛
Owner 宁波路威汽车轮业有限公司