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A thermoforming stamping device and stamping method for an automobile energy-absorbing structure

An energy-absorbing structure and punching device technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of unreasonable strength distribution, uneven cooling rate, etc., so as to improve the problem of poor cooling and improve the uneven cooling rate. Effect

Inactive Publication Date: 2018-12-28
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention designs and develops a thermoforming stamping device and stamping method for an energy-absorbing structure of an automobile, which solves the defect that the strength distribution of the existing automobile energy-absorbing structure is not reasonable after thermoforming, and makes the design of the combined mold convenient for forming parts of different lengths, and at the same time Overcome the problem of uneven local cooling rate of parts with complex shapes existing in the prior art

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  • A thermoforming stamping device and stamping method for an automobile energy-absorbing structure
  • A thermoforming stamping device and stamping method for an automobile energy-absorbing structure
  • A thermoforming stamping device and stamping method for an automobile energy-absorbing structure

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0054] Such as figure 1 As shown, the present invention provides a thermoforming stamping device for an energy-absorbing structure of an automobile, which includes a lower mechanism, an upper mechanism, a combined die, a combined punch and a blank holder. Wherein the lower mechanism and the upper mechanism constitute the support of the device, the combined die is fixed on the lower mechanism, and the combined punch and blankholder are installed on the upper mechanism.

[0055] see also figure 2 , image 3 , the lower mechanism includes a base 110 and four identical support columns 120, the four identical support columns 21 are located at the four corners of the base 110, and the bottom surface of the support columns 120 is welded on the base 110. The lower mechanism is co...

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Abstract

The invention discloses a hot forming punching device of an automobile energy absorbing structure. The hot forming punching device comprises an assembled female die, an assembled male die, a blank holder and a driving mechanism, wherein the assembled die comprises a plurality of female templates which are tightly and fixedly connected with one another; the assembled male die is arranged below the assembled female die and comprises a plurality of male templates which are tightly and fixedly connected with one another; the blank holder is arranged above the assembled female die and is used for pressing a steel plate to be punched; the driving mechanism is respectively connected with the assembled male die and the blank holder and drives the assembled male die and the blank holder to move downward to perform punching operation; cooling channels are formed in the female templates and / or the male templates. The invention further provides a hot forming punching method of the automobile energy absorbing structure. In the device, as each template is provided with an independent cooling channel, the adjusting space of cooling rate is great, and various strengths and optimal distribution of the strengths can be realized according to the requirements.

Description

technical field [0001] The invention relates to the technical field of high-strength steel thermoforming, in particular to a multi-piece combined automobile energy-absorbing structure thermoforming stamping device and a stamping method for realizing the best intensity distribution. Background technique [0002] The emergence of ultra-high-strength steel for automobiles makes it possible to reduce vehicle weight, reduce fuel consumption, reduce emissions and improve safety. The hot stamping forming of ultra-high-strength steel (hereinafter referred to as "hot forming") solves the problems of difficult processing of ultra-high-strength steel cold-formed sheets and large springback after cold processing, and the parts can obtain higher strength after forming and quenching. However, safety components with uniform and high strength usually cannot meet the energy absorption requirements. High-strength components may not be able to maximize the impact energy absorption effect of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D37/16B21D22/02
CPCB21D22/022B21D37/10B21D37/16
Inventor 庄蔚敏徐纪栓解东旋敖文宏杨冠男刘西洋闫雪燕李冰娇胡哲张凯希郭帅李晓鹏
Owner JILIN UNIV
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