Parallel pipeline computing device of CNC interpolation

Abstract

The invention provides a parallel pipeline computing device of CNC interpolation, which is characterized by comprising a parallel / pipeline computing member CU3B which is formed by a plurality of computing units CU3; and a data memory. The computing units CU3 comprise six adders, two shifters for right shifting 1 bit, two shifters for right shifting 2 bits and a shifter for right shifting 3 bits; four data output ends, namely, a beta 0l data output end, a beta 1l data output end, a beta 2l data output end and a beta 3l data output end of the former computing unit CU3 and four data output ends, namely, a beta 0r data output end, a beta 1r data output end, a beta 2r data output end and a beta 3r data output end are respectively connected with four data input ends, namely, a beta 0 data input end, a beta 1 data input end, a beta 2 data input end, and a beta 3 data input end of the next two computing units CU3, so that 2n-1 computing units CU3 form the parallel / pipeline computing member CU3B; the beta (0.5) data output end of each computing unit CU3 is connected with the data memory. Compared with the prior art, the device has high speed calculation and accurate results; the device is suitable for reconfigurable computation of chip level parallel pipeline and meets the developing industrial requirements.

Description

technical field [0001] The invention relates to a computing device for CNC running data. Background technique [0002] CNC machining is one of the basic processes of contemporary mechanical manufacturing. CNC machining requires the help of CNC machine tools. The CNC system is one of the core components of the CNC machine tool. At present, CNC numerical control is the only form of modern numerical control system. High-speed and high-precision CNC system is the fundamental guarantee for improving processing efficiency and quality. The new reconfigurable technology represented by field programmable gate array FPGA not only changes the traditional CNC interpolation calculation process but also changes its calculation mode. However, no matter which method is used, it is calculated point by point according to the order. The calculation speed of such calculation can only depend on the calculation speed of the computer itself. Obviously, due to the limitation of technical condit...

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Problems solved by technology

However, no matter which method is used, it is calculated point by point according to the order. The calculation speed of such calculation can only depend on the calculation speed of the computer itself. Obviously, due to the limitation of technical conditions and cost, the calculation speed of the computer is Limited, which restricts the improvement of high-speed and high-precision CNC machining

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