Numerical control system for numerical control machine

Abstract

The invention discloses a numerical control system for a numerical control machine, which comprises an ARM (Advanced Reduced Instruction Set Computer Machine) processor and a DSP (Digital Signal Processor), wherein the ARM processor runs a first operating system for achieving a man-machine interaction flow; the DSP runs a second operating system for achieving a numerical control flow; the ARM processor is connected with a keyboard and / or a master control panel and is responsible for forwarding a user instruction input via the keyboard and and / or master control panel to the DSP; and the DSP is responsible for calling a corresponding machining code according to the user instruction and executing the corresponding numerical control flow. The system can save cost and ensure numerical control timeliness and accuracy.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a numerical control system for a numerical control machine tool. Background technique [0002] CNC machine tools are mechatronic products formed by the penetration of new technologies represented by CNC systems into the traditional machinery manufacturing industry, and their technical scope covers many fields. Compared with the traditional machinery manufacturing industry, CNC machine tools have high processing efficiency, high processing precision and low labor intensity. [0003] The structure of the CNC system currently on the market roughly has the following types: [0004] 1. X86 processor + real-time operating system [0005] 2. ARM processor + real-time operating system [0006] For large foreign companies such as Siemens and FANUC, the first solution is basically adopted, because this solution can fully meet the needs of high-end CNC. [0007] For some ...

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Problems solved by technology

[0007] For some small and medium-sized manufacturers, most of them adopt scheme 2. Scheme 2 can only be used for some lower-end CNC systems, because the ARM processor has limited computing power, and it is difficult to improve the machining accuracy.

[0008] For the two solutions introduced above, from a technical point of view, solution 1 is obviously the best solution, but the cost is high. First, the motherboard development of the X86 processor needs to be authorized by the chip manufacturer, and second, it can run stably on the X86 processor. Most of the real-time operating systems on the Internet are not free, such as vxWorks, QNX, etc. The addition of the two costs will undoubtedly increase the cost of the CNC system and raise the threshold of high-end CNC

[0009] The disadvantage of scheme 2 is that the ability of ARM processor is limited, especially the floating-point computing ability, which is far inferior to that of DSP (digital signal processing, digital signal processing) processor, so even if a real-time embedded operating system is used, the interpolation cycle cannot Too small, it is difficult to realize some complex functions in finishing or numerical control

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