CNC machining and clamping work pieces2020-06-11
Clean all surfaces before clamping the work piece. There should be no oil stains, iron filings and dust, and use a file (or oil stone) to remove the burrs on the surface of the work piece.
The high-speed rail used for clamping must be smoothed by a grinder to smooth and smooth the surfaces. The code iron and nut must be strong and can reliably clamp the workpiece. Some small workpieces that are difficult to clamp can be directly clamped on the tiger; the machine table should be clean and free of iron filings, dust, and oil; the horn is generally placed At the four corners of the work piece, it is necessary to add equal height shim in the middle of the work piece with a large span.
According to the size of the drawing, use the ruler to check whether the length, width and height of the workpiece are qualified.
When clamping the workpiece, according to the setting method of the programming operation guide, consideration should be given to avoiding the processed parts and the situation where the tool head may hit the fixture during processing.
After the workpiece is placed on the shim, the reference surface of the workpiece must be drawn according to the requirements of the drawing. For the workpiece that has been ground on all six sides, check whether the verticality is qualified.
After the workpiece is pulled, the nut must be tightened to prevent the workpiece from being displaced during processing due to insecure clamping; pull the watch again to ensure that the error is not excessive after clamping.