System and method of adaptive die for ventral punching of U-shaped beam

Abstract

Disclosed are a system and a method of adaptive dies for ventral punching of a U-shaped beam. The system is characterized by comprising a data definition module, a parameter setting module, a die storeroom operation module, a CAD (computer-aided design) graph reading module, a dynamic adaptive die module, an optimization module, an analog simulation module and a NC (numerical control) program creating module. The dynamic adaptive die module performs large host machine die pre-machining and small host machine die pre-machining to all effective data in a punching array output by the CAD graph reading module. A drive queue and a driven queue are formed according to the status of the large host machine pre-machining die and the small host machine pre-machining die. Each queue is ordered from small to large according to each X+ die offset so as to form a drive ordered queue and a driven ordered queue. A pre-punching die machine and a pre-punching die number are determined according to conditions of single punching, double matching punching and synchronous punching by two host machines, beam parameters, and punching positions on the beam. Graphs of die blocks corresponding to the die number are called to write back to a CAM (computer-aided manufacturing) layer defined by the data definition module in the U-shaped beam graphics library in a manner of blocks according to the pre-punching host machine and the pre-punching die number. The graphs of die blocks are read by the optimization module.

Description

technical field [0001] The invention relates to the technical fields of mold library composition, control system and computer-aided manufacturing of a numerically controlled punching production line for U-shaped beams of automobiles, in particular to a method for matching dies for punching holes on the ventral surface of U-shaped beams of automobiles. Background technique [0002] my country's automobile stringer four-host ventral punching production line started relatively late. It has only been five years since my country's first four-host ventral punching production line was developed in 2007. The current method of adapting the die for the ventral face is to allocate punching intervals fixedly The method, that is, the large main machine punches the first section (the length of the section is determined by the installation distance between the large main machine and the small main machine), the upper half area (that is, the y value is greater than half of the plate width) an...

AI Technical Summary

Problems solved by technology

[0023] (3) Software environment and functional modules of prior art

Its defect is that the rate of simultaneous punching of the two hosts that generate the program is low, the number of punching is relatively large, the processing time is long, and the efficiency is low.

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