Shenzhen CNC machining center operation process（1）

The following editor will share with you the CNC machining operation process in Shenzhen. The first thing to say is that the CNC machining parts are composed of several surfaces, and each surface has certain size and mutual position requirements. The relative position requirements of the surfaces of CNC-processed mold parts include two aspects: the distance between the surfaces, the dimensional accuracy and the relative position accuracy (such as coaxiality, parallelism, perpendicularity and round runout, etc.). Studying the relative positional relationship between the surfaces of CNC machined parts is inseparable from the reference, and the position of the part surface cannot be determined without a clear reference. In its general sense, a datum is a point, line, or surface on a part used to determine the position of other points, lines, or surfaces.

　　 So what is the operation flow of CNC machining center?

　　 1. Analysis of Shenzhen CNC processing manufacturers for start-up

　　After turning on the machine or resetting by pressing the emergency stop, the machine tool first returns to the machine tool reference zero position (that is, returns to zero), so that the machine tool has a reference position for its subsequent operations.

　　Note: mainly depends on the manufacturer's settings, some machine tools do not need to return to zero!

　　 2. Analysis of clamping workpieces by Shenzhen CNC processing manufacturers

　　Before clamping the workpiece, clean all the surfaces first. There should be no oil stains, iron filings and dust, and use a file (or whetstone) to remove the burrs on the surface of the workpiece.

　　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 vise; the machine tool table should be clean and free of iron filings, dust, and oil; the iron pad is general Place at the four corners of the workpiece. For the workpiece with a large span, it is necessary to add equal height shim in the middle.

　　According to the size of the drawing, use the caliper 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, you should consider avoiding the processing part and the situation that the tool head may hit the fixture during processing.

　　 After the workpiece is placed on the shim, the reference surface of the workpiece should be drawn according to the drawing requirements. For the workpiece that has been ground on all six sides, check whether the verticality is qualified.

　　Be sure to tighten the nut after the workpiece is pulled to prevent the workpiece from shifting during machining due to insecure clamping; pull the watch again to ensure that the error is not excessive after clamping.