Special-shaped hole flanging panning and reverting system and method

Abstract

The invention relates to a method for flattening and restoring flanging of an irregular hole, which comprises the following steps: acquiring one surface of a component and taking the surface as a reference surface; acquiring a flanging characteristic of the component from a database; calling a flanging flattening function to flatten the flanging if the flanging characteristic is required to be flattened, and generating a flattening characteristic and an identifier of the flattening characteristic; drawing a sketch curve L1 of the profile of the flattening characteristic on the reference surface; zooming out the sketch curve L1 towards a central point of the sketch curve; drawing a sketch curve L2 of the zoomed curve on the reference surface; stretching the drawn sketch curve L2, and completing flattening of the flanging; acquiring a corresponding flanging characteristic and an identifier of the flanging characteristic according to the identifier of the flattening characteristic if the flattened flanging is required to be restored; and saving the solved identifier of the flanging characteristic into a flanging characteristic list, deleting the identifier of the flattening characteristic, and completing restoring of flattening. Moreover, the invention also provides a system for flattening and restoring the flanging of the irregular hole.

Description

technical field [0001] The invention relates to a system and method for flattening and restoring flanges of special-shaped holes. Background technique [0002] In 3D sheet metal mold design, special-shaped hole flanging is one of the features that designers often draw. In mold processing, special-shaped hole flanging is quite complicated, and it is more complicated to flatten special-shaped holes. Special-shaped hole flanging The shape of the special-shaped hole is different, and the processing steps are: first make a hole for the first flange, and then supplement the hole, but it is more complicated to flatten the flange of the special-shaped hole, because we must follow the rules to ensure the flattened hole The principle of constant volume, but PRO / E itself cannot do this, which requires the user to flatten the flanging first, and then manually calculate the size of the hole to be drawn, and then find the position to be added, so that A set of procedures is very complica...

AI Technical Summary

Problems solved by technology

[0002] In 3D sheet metal mold design, special-shaped hole flanging is one of the features that designers often draw. In mold processing, special-shaped hole flanging is quite complicated, and it is more complicated to flatten special-shaped holes. Special-shaped hole flanging The shape of the special-shaped hole is different, and the processing steps are: first make a hole for the first flange, and then supplement the hole, but it is more complicated to flatten the flange of the special-shaped hole, because we must follow the rules to ensure the flattened hole The principle of constant volume, but PRO / E itself cannot do this, which requires the user to flatten the flanging first, and then manually calculate the size of the hole to be drawn, and then find the position to be added, so that A set of procedures is very complicated to handle, and it is time-consuming and laborious for engineers to handle

Images