Method and device for extracting welding spot information of vehicle body-in-white

Abstract

The invention discloses a method and a device for extracting the welding point information of a vehicle body in white. The method in one embodiment comprises the following steps of extracting the welding point information of each welding point in a vehicle three-dimensional digital model, wherein the welding point information comprises welding point serial numbers and spherical surface characteristic bodies using the welding points as centers; according to the spherical surface characteristic body of each welding point, carrying out spherical surface interference treatment on each welding point and each part in the vehicle three-dimensional digital model so as to obtain the part numbers of initial parts possibly connected through the welding points; according to the welding point serial number of each welding point, the part numbers of the initial parts corresponding to each welding point and a structure tree hierarchical relationship in the vehicle three-dimensional digital model, screening out actually connected parts of each welding point from the initial parts corresponding to each welding point respectively; and guiding out the part information of the actually connected parts of each welding point from the vehicle three-dimensional digital model, wherein the part information comprises part names, part materials and part plate thicknesses. In the embodiment of the invention, the method is high in scheme pertinence and high in accuracy, control and change management of the welding point information can be convenient to carry out effectively, and seamless connection between design information and manufacturing information is realized.

Description

technical field [0001] The invention relates to the field of vehicle technology, in particular to a method for extracting information on welding points of a vehicle body-in-white and a device for extracting information on welding points of a vehicle body-in-white. Background technique [0002] With the increasing popularity of vehicles, the competition in the automotive industry has become increasingly fierce, and the overall development cycle of products from design to trial production and mass production has become shorter and shorter. How to efficiently and accurately realize the seamless connection from product to production has become important work content. At present, the main connection method of automobile body-in-white is still spot welding. The management of welding point information (including number, name of connected parts, material, plate thickness, etc.) in welding workshop is the process planning, welding parameter debugging management and on-site process do...

AI Technical Summary

Problems solved by technology

In the actual product design to production process, the solder joint information is input to the production department as part of the 3D digital model; as there are as many as 4,000 to 5,000 solder joints in the body-in-white, the manual extraction of solder joint information is cumbersome, time-consuming, and easy Errors and omissions occur, and it is difficult to carry out effective control and change management in the follow-up process, laying hidden dangers for on-site process control and welding quality

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