Control of Dongguan CNC Machining Speed
Control of Dongguan cnc machining Speed
Repetitive production parts machining by CNC lathes: The process preparation time using CNC grinders accounts for a high proportion.
Dongguan CNC machining is moving towards a high-speed and efficient road. This includes the speed control of Dongguan CNC machining. To make full use of the effective working stroke, it is necessary to make the moving parts accelerate to the high speed stroke in a very short time, and stop the momentarily during the high speed stroke. This is why it is necessary to control the speed of CNC machining in Dongguan.
Based on the open control idea, we propose a method for automatic acceleration and deceleration control of the movement of CNC machine tools based on arbitrary curves. This method pushes the automatic acceleration and deceleration control from the traditional fixed mode to the new flexible mode, and explores a new way to effectively improve the dynamic performance of CNC machine tools.
1. Flexible acceleration and deceleration control
In CNC machining in Dongguan, specific automatic speed control functions are usually implemented directly by the system program. In this way, it is necessary to change the acceleration and deceleration characteristics of the system or to modify the CNC program, so ordinary users cannot make CNC machine tools have the best acceleration and deceleration performance according to their own wishes. Therefore, the proposed flexible acceleration and deceleration control method uses the principle of a database. The acceleration and deceleration control is divided into acceleration and deceleration description and implementation, and the acceleration and deceleration description is separated from the system program. In the numerical control system software, a general control channel that is independent of the contents of the acceleration and deceleration database is designed, and the acceleration and deceleration calculation and trajectory control are independently completed by it.
2. Flexible automatic acceleration control
Set acceleration curve, analytical curve and non-analytical curve, and use it as a template to store it in the acceleration and deceleration curve library.
3. Flexible automatic deceleration control
It is also stored in the acceleration / deceleration curve library as a template in the form of data tables for acceleration control. Reasonable automatic acceleration and deceleration control is an important link to ensure the dynamic performance of CNC machine tools. Traditional automatic acceleration / deceleration control based on a fixed curve lacks flexibility, and it is difficult to ensure that the acceleration / deceleration process matches the performance of the machine tool, and it is difficult to optimize the dynamic characteristics of the machine tool motion.
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