Method for controlling plate inflow volumes for drawing dies for sound-insulation double-layer plates of automobiles

Abstract

The invention provides a method for controlling plate inflow volumes for drawing dies for sound-insulation double-layer plates of automobiles. The method includes steps of acquiring theoretical shrinkage lines, theoretical press-fit lines and theoretical measurement coordinate hundred-bit lines; acquiring press-fit lines and shrinkage lines and measuring coordinate hundred-bit lines; measuring the distances from the press-fit lines to the shrinkage lines corresponding to points of each measurement coordinate hundred-bit line to obtain theoretical plate inflow volumes of the points; acquiring actual shrinkage lines and actual press-fit lines and measuring actual plate inflow volumes; adjusting angles R of drawing ribs and drawing grooves. The angles R of the drawing ribs and the drawing grooves are adjusted, so that the actual shrinkage lines can be parallel to the theoretical shrinkage lines, the difference between numerical values of the actual plate inflow volumes of the various points on the measurement coordinate hundred-bit lines and numerical values of the theoretical plate inflow volumes can be guaranteed against being higher than 3%. The method has the advantages that theoretical analysis results can be clearly and accurately reflected into the actual dies and accurately and clearly contrast with actual component debugging plate shrinkage, and accordingly plate boundary forming and component resilience sizes can be controlled.

Description

technical field [0001] The invention relates to the field of automobile cover stamping; [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 various fo...

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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