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Die with avoiding structure

A mold and hollow technology, which is applied in the field of molds with a hollow structure, can solve problems such as affecting the forming accuracy of parts, reducing the quality of parts, and failing to reach the angle, and achieve the effect of improving forming accuracy and quality.

Inactive Publication Date: 2014-07-02
KUNSHAN DAYA AUTO PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the automobile industry, reducing weight, reducing consumption and improving safety have become the main development trends of the automobile manufacturing industry. In order to achieve multiple goals such as energy saving, emission reduction and high safety, the automobile industry has begun to use high-strength steel in large quantities, but this High-strength steel has strong toughness. In the process of stamping automobile body parts with molds, high-strength steel sheets will spring back, which will cause the failure to reach the predetermined angle, affect the forming accuracy of the parts, and cause a significant drop in the quality of the parts.

Method used

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  • Die with avoiding structure
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Embodiment 1

[0019] This embodiment provides a mold with an empty structure, such as Figure 1-Figure 3 As shown, it includes an upper mold insert 1 and a lower mold insert 2, and the bending molding of the lower mold insert 2 is provided with an empty part 3, and a gap is formed between the empty part 3 and the stamping part 4, the gap The setting can make the bending and forming of stamping parts reach a predetermined bending angle, effectively control the rebound phenomenon in the forming process of high-strength steel stamping parts, and improve the forming accuracy and quality of high-strength steel stamping parts.

[0020] The size of the gap of the hollow part 3 can be designed according to the performance of the high-strength steel and the shape of the stamping part to design the springback amount of the stamping part after forming.

[0021] In this embodiment, let the hollow part 3 be designed as a bent structure, and its bending angle is 3-6° reserved than the preset bending angl...

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Abstract

The invention discloses a die with an avoiding structure and belongs to the technical field of dies. The die with the avoiding structure is designed in order to solve the problems that an existing die rebounds in the process of high-strength steel stamping formation, forming precision and quality of high-strength steel plate stampings are reduced and the like. The die with the avoiding structure comprises upper die inserts and a lower die insert, an avoiding portion is arranged at the bend forming position of the lower die insert, and a gap is formed between the avoiding portion and the a stamping. Rebound in the process of high-strength steel stamping formation is effectively controlled, and forming precision and quality of the high-strength steel plate stampings are improved.

Description

technical field [0001] The invention relates to a mold with a clearance structure, which belongs to the technical field of molds. Background technique [0002] With the development of the automobile industry, reducing weight, reducing consumption and improving safety have become the main development trends of the automobile manufacturing industry. In order to achieve multiple goals such as energy saving, emission reduction and high safety, the automobile industry has begun to use high-strength steel in large quantities, but this High-strength steel has strong toughness. During the process of stamping automobile body parts with dies, the high-strength steel sheet will spring back, resulting in failure to reach the predetermined angle, affecting the forming accuracy of the part, and causing a significant drop in the quality of the part. Contents of the invention [0003] The purpose of the present invention is to propose a mold with a clearance structure, which can effective...

Claims

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Application Information

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IPC IPC(8): B21D37/10
Inventor 赵国文
Owner KUNSHAN DAYA AUTO PARTS