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The composition of nc machine tool and the work steps

by:Xavier      2020-07-04

to the correct operating nc machine tools, to avoid the problems caused by improper operation, we must understand and master the composition and the working procedure of nc machine tool, then by us to introduce the composition and working steps of nc machine tools:

CNC machine tool is composed of four parts, respectively is: CNC unit, servo system, the position feedback system of mechanical parts, machine tool. Below we specific understanding of the four part of them one by one.

a, CNC unit. CNC unit is the core of the nc machine tool, the information input, processing, and output of three parts. CNC unit to accept digital information, through numerical control device of control software and decode, interpolation, logical processing logic circuit, the various instructions information output to the servo system, servo system driver operating components as feed movement.

2, servo system. Is composed of drive, drive motor, and execution of machine parts and mechanical transmission parts of nc machine tool feed system. Its role is to put the pulse signal from the nc devices into the machine moving parts movement.

3, the position feedback system. The Angle of the servo motor displacement feedback, numerical control machine actuators ( The workbench) The displacement feedback. Including grating, rotary encoder, the laser range finder, the magnetic grid, etc.

4 mechanical components, machine tools. CNC machine mechanical parts composition similar to common machine tool, but the transmission structure is more simple, more demanding on accuracy, stiffness, vibration resistance, etc, and its driving and variable speed system is easier to achieve automatic extension.

CNC machine work steps: divided into the preparation stage and programming stage

preparation stage: according to the processing of parts drawings, determine the processing data, depending on the type of processing technology, cutting tool, etc. The other auxiliary information relating to the choice.

programming stage: according to the machining process information, write the nc machining program and fill out the application form.

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