First of all, the axis of the workpiece should coincide with the axis of the spindle, which means that the workpiece should rotate smoothly; Don't make the tool holder too thin and too long, because the tool holder with poor rigidity will vibrate during turning, which will lead to tool loss, and the tool loss will also occur if the tool dosage is too large, so the ellipse phenomenon will occur.

Before machining the workpiece, it should be corrected. Anyone who has worked hard will find that the workpiece will sway as soon as it is clamped. It doesn't mean that the axes coincide with each other by turning a knife first. If the workpiece you turn out is inclined, neither the shaft hole nor the internal and external threads can match. The way to avoid this situation is to gently tighten the chuck wrench by hand, and then let the spindle rotate at a low speed.

If it shakes, stop the spindle, then observe which fixture the workpiece does not completely touch, and then gently tap the workpiece with something else to correct it, and then rotate the spindle at a low speed. If it is stable, clamp the workpiece and rotate at normal speed.

Composition of extended data control machine tool

The main machine is the theme of CNC machine tools, including machine body, column, spindle, feed mechanism and other mechanical parts. It is a mechanical component used to complete various cutting processes.

Numerical control device is the core of numerical control machine tool, including hardware (printed circuit board, CRT display, key box, paper tape reader, etc. ) and corresponding software are used to input digital parts programs, and complete the storage, data conversion, interpolation operation and various control functions of input information.

The driving device is the driving part of the executive mechanism of CNC machine tools, including spindle driving unit, feed unit, spindle motor and feed motor. Under the control of numerical control device, he realizes the spindle and feed drive through electric or electro-hydraulic servo system. When multiple feeds are linked, positioning, straight line, plane curve and space curve can be processed.

Auxiliary equipment refers to some supporting components necessary for the operation of CNC machine tools, such as cooling, chip removal, lubrication, lighting, monitoring and so on. It includes hydraulic and pneumatic devices, a chip removal device, an exchange workbench, a numerical control turntable and a numerical control indexing head, as well as a cutter and a monitoring detection device.

Programming and other auxiliary equipment can be used to program and store parts outside the machine.

Baidu encyclopedia-CNC lathe processing