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Design method for molded surface of automobile cover part die based on molded surface deformation compensation

A technology for automobile cover parts and mold profiles, which is used in calculations, special data processing applications, instruments, etc. to ensure molding accuracy, reduce manual grinding time, and speed up the design process.

Inactive Publication Date: 2011-08-31
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE +1
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method based on profile deformation compensation that can solve the problem of long repairing time, large workload and low pre-compensation accuracy of the profile in the prior art. Design method of mold surface for automobile panel parts

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  • Design method for molded surface of automobile cover part die based on molded surface deformation compensation
  • Design method for molded surface of automobile cover part die based on molded surface deformation compensation
  • Design method for molded surface of automobile cover part die based on molded surface deformation compensation

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Embodiment Construction

[0035] The method for designing the mold surface of the automobile panel part based on the surface deformation compensation of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0036] Such as figure 1 As shown, the design method of the automobile panel mold surface based on the surface deformation compensation of the present invention includes: the prediction of the surface contact state based on the numerical simulation of similar molds, and the output of the mold shape based on the thinning rate of the workpiece and the elastic deformation of the mold. The first stage of the surface compensation guidance document; on the basis of the guidance document, use CAD software to design the mold compensation surface, and the second stage to output the CAD compensation surface; use the method based on reverse engineering to output the actual mold surface after mold repair The third stage.

[0037] Such as fi...

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Abstract

The invention discloses a design method for a molded surface of an automobile cover part die based on molded surface deformation compensation, which comprises the steps of predicting the contact state of the molded surface based on similar die numerical value simulation, outputting a compensation guide document for the molded surface of the die based on the dethickness of a manufactured piece and the elastic deformation of the die, using CAD (computer aided design) software to design the compensation molded surface of the die based on the guide document and outputting the CAD compensation molded surface, and outputting the repaired actual molded surface of the die by using a method based on reverse engineering. Under the premises of reasonable technical conditions and die structures, a CAE-CAD-CMM (computer aided engineering-computer aided design-capability maturity model) integration system for the molded surface of the automobile cover part die based on the dethickness of the manufactured piece and the elastic deformation compensation of the die is formed. The method can be adopted for quickening the design process of the molded surface of the automobile cover part die, reducing the manual grinding time, guarantees the fit precision of the molded surface of the die and the forming precision of the automobile cover part, and provides a new method for the high-quality short-period debugging work of the automobile cover panel die.

Description

technical field [0001] The invention relates to a method for designing a mold surface of an automobile cover part. In particular, it relates to a method for designing the mold surface of an automobile cover part based on surface deformation compensation. Background technique [0002] The stability of the cover mold during high-frequency work is the most basic and most important guarantee for the performance of the mold, and to ensure the stability of the mold during work, it is necessary to ensure the accuracy of the dynamic fit of the punch and die. The dynamic matching accuracy of the mold is divided into the guiding matching accuracy and the functional surface matching accuracy, which are mainly reflected in the bonding rate of the upper and lower molds. In order to achieve the specified bonding rate (about 90%), the mold fitter usually uses the punch as a benchmark to develop and match the processed concave mold. Apply blue oil or red lead powder on the front and back ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 苗德华于强张子钦蔡玉俊曲周德段磊王井玲
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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