What are the contents of the CNC software upgrade for tool grinding machines?

Published Time:

2023-02-17

A tool grinder is a high-performance machine tool capable of sharpening the cutting edges and flutes of metal cutting tools, as well as external cylindrical surfaces, flat surfaces, and complex curved surfaces of general medium- and small-sized parts.

　　Reconstruction Design of CNC Software for Tool Grinding Machines:

　　The software modification and design of the CNC system for tool grinders can be implemented through C-language programming. Each function should correspond to a specific module program. The main modifications include the primary functions, realistic LCD display functionality, keyboard scanning functionality, speed/行程 processing functionality, parameter calculation functionality, and motor operation functionality.

　　1. Main functions

　　The main function is primarily responsible for managing and controlling the entire system module’s workflow. It needs to support features such as system initialization, interrupt management, keyboard scanning processing, and function key handling. To fully leverage the advantages of the main function, this optimized design employs a switch statement to perform logical judgment on the key values returned by ReadKey0 and takes corresponding actions based on these returned key values.

　　2. LCD display function

　　During the operation of an LCD, when the microcontroller needs to send or receive commands, it does so by utilizing the write-command function and the write-data function. Both LCD commands and data must be read and written according to a specific timing sequence. In these two functional components, software is used to simulate the LCD’s read/write timing sequence, thereby transmitting commands or data to the LCD’s internal database and achieving the desired control effect. During the process of displaying characters on the LCD screen, these two functions can be configured into different subroutines, and by invoking these subroutines in various modes, character display can be realized.

　　3. Keyboard scanning function

　　In traditional keyboard scanning, the CPU must periodically check whether any keys have been pressed, leading to repeated idle scans even when key presses are infrequent and wasting a significant amount of CPU time. To further improve CPU efficiency, keyboard scanning can be implemented via interrupts. So, what exactly is the interrupt mode for keyboards? When a key is pressed, an interrupt request is immediately generated. This request is then directly routed to the interrupt handler. Once it’s confirmed that a particular key has been pressed, the system performs the appropriate scanning operation, accurately identifies the key’s position, and executes the corresponding key function.

　　4. Speed/Stroke Processing Function

　　The speed/travel parameter serves as a reusable key and must be processed separately when the program is applied. Pressing the key once indicates that the input is a speed parameter, directly triggering the corresponding speed-processing program. Pressing the key twice in succession indicates that the input is a travel parameter, directly activating the travel-processing program.

　　The above is the content that our editor has explained about “What are the contents of CNC software upgrades for tool grinders?” We hope this information will be helpful to everyone.

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