Numerical control system and breakpoint continuous-carving method thereof

Abstract

The invention discloses a numerical control system and a breakpoint continuous-carving method thereof. The breakpoint continuous-cutting method includes the steps that 1, when an introduction processing program starts processing, a decoding ring reads and decodes each program segment, generates main program segment numbers, sub program segment numbers and graphic information corresponding to the program segments, and saves the main program segment numbers, the sub program segment numbers and the graphic information to a data buffer area; 2, in each interpolation period, an interpolation ring reads the main program segment numbers, the sub program segment numbers, the graphic information and position information which is fed back by a position ring once, denotes the main program segment numbers, the sub program segment numbers, the graphic information and the position information as breakpoint information, and saves the breakpoint information to a storage area with battery protection; 3, when a breakpoint continuous-carving mode is started, the decoding ring reads the breakpoint information from the storage area, and identifies the program segment where a breakpoint are located according to the main program segment numbers and the sub program segment numbers in the breakpoint information, and in combination with the position information of the breakpoint, a continuous-carving program segment is generated, so that continuous processing is conducted from the breakpoint position. Therefore, under the condition that manual control is conducted or a machine tool undergoes accidental power failure, the breakpoint continuous-carving function is achieved.

Description

technical field [0001] The invention relates to the technical field of numerical control systems, in particular to a numerical control system and a method for continuous cutting at breakpoints. Background technique [0002] The numerical control system uses digital control technology to control the machine tool in real time. It is widely used in milling machines, grinding machines, laser cutting and other processing fields. It is one of the core technologies of the manufacturing industry. During the machining process of the CNC system, the machine tool may stop due to non-human factors (such as power failure, machine failure, system error, etc.) produce. When the machine tool is restarted after the breakpoint is generated, it will be processed according to the original program, which will lead to longer processing cycle and poorer processing quality of the product. Especially in the laser cutting industry, the secondary processing of sheet metal will seriously damage the a...

AI Technical Summary

Problems solved by technology

This method cannot record the breakpoint position of the machine tool when the machine tool stops due to non-human factors such as unexpected power failure, and this method requires manual intervention in the process of recording the breakpoint position, so it cannot be applied to machine tool accidents. Emergencies such as power outages

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