Control method of sheet material inflow in drawing die of automobile sound-proof double-layer sheet

A drawing die and inflow technology, which is applied in the field of sheet material inflow control, can solve problems such as difficult control and theoretical analysis boundary deviation, and achieve the effect of eliminating influence

Active Publication Date: 2018-04-17
上海赛科利汽车模具技术应用有限公司
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AI Technical Summary

Problems solved by technology

[0004] The car sound insulation double-layer panel is a two-layer panel. In addition to the common sheet metal forming problem, the part springback size, the difficulty is that the PATCH boundary of the second layer panel after debugging deviates from the theoretical analysis boundary, which is difficult to control

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  • Control method of sheet material inflow in drawing die of automobile sound-proof double-layer sheet

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Embodiment Construction

[0020] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] see figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, term...

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Abstract

The invention provides a method for controlling the inflow of sheet material into a drawing die of a sound-insulating double-layer sheet for an automobile, comprising the following steps: obtaining a theoretical shrinkage line, a theoretical lamination line, and a hundredth line of theoretical measurement coordinates; obtaining the lamination line and the shrinkage line , measure the coordinate hundred line; measure the distance between the press line and the shrinkage line corresponding to each point of the measurement coordinate hundred line, and obtain the theoretical sheet material inflow at this point; obtain the actual shrinkage line and the actual press line, Measure the actual sheet inflow; adjust the R angle of the drawbead and the drawing groove so that the actual shrinkage line is parallel to the theoretical shrinkage line, and ensure that the actual sheet inflow value and the theoretical sheet inflow value of each point on the measurement coordinate hundred-digit line The difference does not exceed 3%. The invention clearly and accurately reflects the theoretical analysis results into the actual mold, and forms an accurate and clear comparison with the shrinkage amount of the adjusted sheet metal of the actual parts, thereby controlling the boundary forming of the sheet material and the rebound size of the parts.

Description

technical field [0001] The invention relates to the field of stamping of automobile cover parts; [0002] In particular, the invention relates to a method for controlling the inflow of sheet material into a drawing die of an automobile sound-insulating double-layer sheet. Background technique [0003] With the advancement of automobile manufacturing technology, people pay more and more attention to the control of noise and vibration in the passenger car, and the control level of the noise in the car has become one of the important symbols to measure the quality of passenger cars. Among them, the sound-insulating double-layer steel plate for automobiles uses engineering composite interlayer binder materials to achieve shock absorption and noise reduction between the two steel plates, and each engineering composite polymer interlayer is based on eliminating the different designed for frequency noise. Since the composition of the polymer interlayer can be adjusted to reduce v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D22/22B21D37/10G06F17/50
Inventor 田华李玉强徐伟检陈箭魏德礼
Owner 上海赛科利汽车模具技术应用有限公司
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