CAM system of space pipe frame

Abstract

The invention relates to a CAM system of a space pipe frame, belonging to the technical field of numerical control cutting and comprising a processing module of description files of the space pipe frame, a database module, a geometric computation module, a human-computer interaction module and a numerical control cutting file processing module, wherein the processing module of description files ofthe space pipe frame is responsible for storage and reduction of data; the database module stores geometric data of all steel pipes so as to supply calling by other modules; the geometric computationmodule computes intersection line data of ideal forming end surface of all the steel pipes and judges the design reasonableness of each steel pipe; the human-computer interaction module displays thebasic parameters and computed results transmitted from the geometric computation module and abnormal conditions of the system; and the numerical control cutting file processing module outputs the generated numerical control cutting codes of the forming end surfaces of steel pipes to storage medium outside of the system. The CAM system has little human intervention and short completion period, improves reliability, stability and compatibility of design, has accurate and fast nesting results and improves the utilization ratio and production efficiency of raw materials.

Description

technical field [0001] The invention relates to a processing system in the technical field of numerical control cutting, in particular to a CAM system for space pipe racks. Background technique [0002] The basic principle of the CAM processing method of the space pipe rack is to calculate the intersecting line data of the forming end face of each steel pipe according to the basic parameters of each steel pipe and other steel pipes connected to the steel pipe in turn for all steel pipes in the space pipe rack. It can be connected with other steel pipes only by welding at the connection nodes without any connecting pieces; then, according to the hardware configuration of the intersecting wire cutting machine tool and the requirements of the user's processing technology and welding technology, the formed end of the steel pipe The surface intersecting line data is adjusted and converted into a cutting code that the intersecting line cutting machine can recognize and perform cut...

AI Technical Summary

Problems solved by technology

Both of the above two CAM systems have the following drawbacks: 1. Neither can complete the process from the input of the space pipe frame description file to the output of the steel pipe cutting code in one go, and both require the continuous participation of the user. When the space pipe frame is extremely complex, the user is prone to negligence or Fatigue causes errors and low efficiency; 2. The input interface is too single and cannot be compatible with multiple file formats; 3. The output file format is oriented to specific models and types of intersecting wire cutting machines, and cannot be compatible with various types and models of intersecting lines cutting machine

4. There is no nesting processing for steel pipes. In the above CAM system, if the user needs to do nesting processing, he must manually or with the help of third-party software, and the third-party software can handle the output of the CAM system for specific models and types. The steel pipe cutting file of the intersecting wire cutting machine tool often must be independently developed by the user or monopolized by the intersecting wire cutting machine manufacturer again, which is extremely inconvenient for the user

Therefore, this system has all the disadvantages of the existing general space pipe frame CAM system as mentioned above

Moreover, the system extracts the intersecting line of steel pipe forming end face through the entity editing tool of AutoCAD software, and generates the cutting code of steel pipe forming end face intersecting line with the intersecting line data. The hardware configuration of wire cutting machine adjusts the link of cutting track of steel pipe forming end face, and what is cut out is the ideal forming end face of steel pipe. When there are steel pipe welding and cutting processes and hardware configuration restrictions of CNC intersecting wire cutting machine, this ideal forming end face is often cannot be processed, so the system does not meet the actual requirements

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