Method for accurately determining limit boundary line of parting of automobile opening and closing part

Abstract

The invention discloses a method for accurately determining a limit boundary line of a parting of an automobile opening and closing part, which comprises the following steps of: S1, determining key parameters which comprise a DTS gap d, an included angle theta between a parting trend and a hinge axis, and a section gap d1, and the relational expression is d1 = d / cos (theta); S2, according to the modeling profile CAS, an environment BODY and the like, preliminarily arranging the hinge position to determine the hinge axis; S3, making a plane A perpendicular to the axis of a hinge and an intersection Q1 of the plane A and the axis of the hinge at the key position 1; S4, designing the section of the key position 1 according to a plane A1 and the reference of the Q1 position of the intersectionpoint; and S5, generating a front cover limit boundary point P1 according to section sketch constraints, and so on, making a plurality of key position limit boundary points P2 and P3. The included angle theta parameter and the gap relational expression are introduced into the section design of the key position, the problem that in the prior art, the limit boundary line Lold error is large can besolved, and the front cover parting optimization effect is particularly outstanding.

Description

technical field [0001] The invention relates to the technical field of the limit boundary line of splitting of automobile opening and closing parts, and in particular to a method for accurately determining the limiting boundary line of splitting of automobile opening and closing parts. Background technique [0002] In order to meet the movement clearance requirements of the opening and closing parts and the environmental parts when the opening and closing parts engineers arrange the opening and closing parts, they need to analyze the adjustable area S of the seam theory to ensure that the seam layout meets the requirements of the opening and closing parts and the environmental parts. Sports clearance and other requirements. In order to make the car shape meet the engineering requirements, the car opening and closing parts engineer provides the limit line L of the seam (or the theoretical adjustable area S of the seam) to the car stylist, and the car stylist optimizes the sea...

AI Technical Summary

Problems solved by technology

[0004] 1. In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method that can accurately determine the boundary line of the limit line of the opening and closing part of the automobile, by introducing the included angle θ parameter and the gap in the section design of the key position The relational formula can solve the problem of large Lold error of the limit boundary line of the existing technology, and the optimization effect of the front cover splitting is particularly outstanding

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