公开(公告)号：US20240054251A1

公开(公告)日：2024-02-15

申请号：US18222489

申请日：2023-07-17

Applicant: Keyence Corporation

Inventor： Kazusa AOKI ,  Jun TABUCHI

IPC: G06F30/10 ,  G01B11/25

CPC classification number: G06F30/10 ,  G01B11/2518 ,  G06F2111/04

Abstract: A reverse engineering support apparatus, includes: a data acquisition unit that acquires the mesh data; a reception unit that receives an input of a designated point on the mesh data; an extraction unit that extracts a plane candidate based on the designated point from the mesh data; a plane determination unit that creates a plane constituting a polyhedron based on the plane candidate; and a polyhedron creation unit that creates the polyhedron including the plane created by the plane determination unit. The reception unit can further receive designation of a constraint condition indicating a position and an attitude with respect to another surface or a position and an attitude in a predetermined coordinate system for each surface of the polyhedron, and the plane determination unit creates the plane constituting the polyhedron based on the plane candidate and the constraint condition.

公开(公告)号：US20240403500A1

公开(公告)日：2024-12-05

申请号：US18635067

申请日：2024-04-15

Applicant: Keyence Corporation

Inventor： Kazusa AOKI

IPC: G06F30/12 ,  G06T19/20

Abstract: A reverse engineering support apparatus includes: an extraction unit that extracts a geometric element from mesh data; a reception unit that receives selection of one geometric element from among a plurality of the geometric elements extracted by the extraction unit and selection of a type of a logical operation; a registration unit that registers a plurality of records in which types of logical operations received by the reception unit are associated with the geometric elements, respectively, in a synthesis processing table; a computing unit that executes a logical operation of a geometric element for each of the registered records based on a type of the logical operation associated with each of the records to create a synthetic element; and a display control unit that displays the synthetic element on the display unit.

公开(公告)号：US20240054252A1

公开(公告)日：2024-02-15

申请号：US18222490

申请日：2023-07-17

Applicant: Keyence Corporation

Inventor： Kazusa AOKI ,  Masaki FUJIWARA ,  Jun TABUCHI

IPC: G06F30/10

CPC classification number: G06F30/10

Abstract: CAD data, which can be directly used for a design drawing, can be easily created from geometric element following mesh data. Provided is a reverse engineering support apparatus that converts mesh data obtained by measuring a three-dimensional shape of a workpiece into CAD data and outputs the CAD data. The reverse engineering support apparatus includes: a data acquisition unit that acquires mesh data; an extraction unit that extracts geometric element data from the mesh data; a rounding unit that executes rounding on a characteristic value of the geometric element data extracted by the extraction unit; a conversion unit that converts the geometric element data subjected to the rounding into CAD data; and an output unit that outputs the CAD data.