A slow-moving wire-feeding five-axis four-linkage wire cutting motion control method

Abstract

The invention relates to a slow wire walking five-shaft four-linkage wire cutting motion control method. The slow wire walking five-shaft four-linkage linkage wire cutting motion control method is characterized in that a control system composed of an upper computer and a lower computer is included, a PCI bus interface chip and an FPGA are arranged in the lower computer, the FPGA is in data transmission with the upper computer through the PCI bus interface chip, the lower computer treats data sent by the upper computer, all shafts are subject to fine interpolation calculation, data pulses of the shafts are subdivided and then are sent to motor drivers of the shafts, motors are driven to move, and all shafts are driven to move. Shaft expansion is supported, real-time performance is good, theFPGA parallel programming capacity and rich IO resources are sufficiently exerted, the calculation speed is high, and the motion instruction calculation capacity can be greatly improved.

Description

technical field [0001] The invention relates to a motion control method of slow-moving wire cutting, in particular to a motion control method of slow-moving wire-cutting with five axes and four linkages. Background technique [0002] For conductive metal materials with high hardness, high strength, and difficult to cut, EDM is often carried out by slow wire cutting. At present, the commonly used processing method at home and abroad is the traditional X / Y / U / V four-axis linkage to realize the trajectory movement of the upper and lower planes to complete the processing of the cutting surface. This processing method can complete the processing of planes, straight cones and top and bottom special-shaped surfaces. , but the processed part is only a part of the complex ruled surface, and other complex curved surfaces cannot be processed, and the traditional slow wire cutting uses ISA or serial port protocol for data transmission, and the real-time processing cannot be guaranteed. ...

AI Technical Summary

Problems solved by technology

At present, the commonly used processing method at home and abroad is the traditional X / Y / U / V four-axis linkage to realize the trajectory movement of the upper and lower planes to complete the processing of the cutting surface. This processing method can complete the processing of planes, straight cones and top and bottom special-shaped surfaces. , but the processed part is only a part of the complex ruled surface, and other complex curved surfaces cannot be processed, and the traditional slow wire cutting uses ISA or serial port protocol for data transmission, and the real-time processing cannot be guaranteed.

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