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Transmission rear housing die and casting method of transmission rear housing

A transmission and mold technology, which is applied to the transmission rear shell mold and its casting field, can solve the problems of low output efficiency and low casting quality, and achieve the effect of high output efficiency and good casting quality.

Active Publication Date: 2014-09-10
贵州海跃模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of low casting quality and low output efficiency of the existing casting method for transmission rear casings, the present invention provides a transmission rear casing mold with good casting quality and high output efficiency and its casting method

Method used

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  • Transmission rear housing die and casting method of transmission rear housing
  • Transmission rear housing die and casting method of transmission rear housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] refer to figure 1 and figure 2 , a transmission back shell mold, comprising an upper mold 6, a lower mold 9, an upper mold 3 and a lower mold 10, the cavity between the upper mold 6 and the lower mold 7 is a mold cavity, and the upper mold and the upper mold The formwork is connected by bolts 4, and the lower mold and the lower formwork are also connected by bolts;

[0017] The upper template 3 is slidably set on the guide column 2 up and down, and the upper template 3 is connected with an upper driving mechanism for driving the upper template 3 to move up and down; the upper mold and the lower mold on one side of the mold cavity The junction of the molds is a runner 11, and the junction of the upper mold and the lower mold on the other side of the mold cavity is an overflow groove 7, and a first vertical guide groove and a second vertical guide groove are opened in the groove. Guide groove, the first vertical guide groove is close to the runner 11, the second vertic...

Embodiment 2

[0026] refer to figure 1 and figure 2 , a casting method of a transmission rear case, the casting method comprising the following steps:

[0027] 1) Mold closing and squeeze casting stage: the lower template 10 is fixed, the upper template 3 moves along the guide column 2 to make the upper mold 6 cooperate with the lower mold 9 to form a shell cavity for casting the rear shell of the transmission, and the push rod 8 moves to the At the position where the surface of the cavity is parallel, the extrusion head 12 squeezes upwards to squeeze the molten metal into the cavity of the mold. After filling, excess impurities such as molten metal and gas overflow from the overflow groove 7;

[0028] 2) Mold opening stage: After the extrusion casting is completed, the upper mold 3 drives the upper mold 6 to move upward along the guide column 2, and then the casting is pushed out of the cavity from the lower mold 9 through the simultaneous upward movement of the extrusion head 12 and the...

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Abstract

The invention discloses a transmission rear housing die. The transmission rear housing die comprises an upper die and a lower die; a cavity between the upper die and the lower die is a die cavity; the upper part of the upper die is fixedly connected with an upper template, while the lower part of the lower die is fixedly connected with a lower template; the upper template sleeves a guide column in such a manner of sliding up and down; the upper template is connected with an upper driving mechanism for driving the upper template to move up and down; a pouring gate is arranged at the joint of the upper die and the lower die at one side of the die cavity, while an overflow groove is formed at the joint of the upper die and the lower die at the other side of the die cavity, and a first vertical guide groove and a second vertical guide groove are formed in the groove; the first vertical guide groove is close to the pouring gate, while the second vertical guide groove is close to the overflow groove; a squeezing head is hermetically nested in the first vertical guide groove in such a manner of sliding up and down, while a push rod is hermetically nested in the second vertical guide groove in such a manner of sliding up and down; the squeezing head and the push rod are connected with a lower driving mechanism, respectively. The invention also discloses a casting method of a transmission rear housing. The transmission rear housing die and the casting method have the advantages of relatively good casting quality and relatively high output efficiency.

Description

technical field [0001] The invention relates to the technical field of plastic forming of metal materials, in particular to a transmission rear case mold and a casting method thereof. Background technique [0002] With the continuous development and growth of the world's automobile industry, the automobile industry has become one of the pillar industries of the modern economy, and has a huge and far-reaching impact on the development of the world economy and social progress. The lightweight of automobiles is the current development trend. As an important part of automobiles, transmission is of great significance to the development of automobiles. Most of the current transmission rear casings are made of iron alloy or aluminum alloy, and most of them are ordinary metal castings. The quality of the castings is not high, and the output efficiency is not high. Contents of the invention [0003] In order to overcome the disadvantages of low casting quality and low output effic...

Claims

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Application Information

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IPC IPC(8): B22D18/02
Inventor 应富强黄俊郑忠明朱阳
Owner 贵州海跃模具有限公司
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