Shenzhen precision metal processing technology of process as precision processing enterprise, in order to guarantee the accuracy of the precision machinery parts processing, must be used to the numerical control machine tool, numerical control car is different from ordinary lathe machining
, the machining process content than ordinary car process content is much more complex, so before we all have to be technology analysis of metal processing parts, determine the content of the process, analysis of the precision parts
drawings, processing content clearly, set again after processing of CNC machine tool numerical control processing route on the part of the process instruction.
So-called craft process, is determined by processing the workpiece must be completed on the machine before and after the process content and process.
Will include the following aspects: 1.
Artifacts in this situation before machining, such as shape, size, machining allowance, etc.
Before has processing parts of the shape, size, or the process need before processing the datum, the datum holes, etc.
This procedure for the region and the specific content of precision machinery parts processing four.
To facilitate the preparation technology and application, we should map out the process.
The next step is to determine the workpiece clamping way and the design of fixture: according to the workpiece machining parts have been identified, locating datum and clamping requirements, choose or design fixture, CNC lathe with three jaw self centering chuck clamping workpiece, axial workpiece can also adopt the tailstock top supporting artifacts, to reduce the deformation of slender axle processing when stress, improve the accuracy of precision metal processing, and the holes in the perforated axle workpieces, can adopt the hydraulic centering center frame, centering precision can reach 0.
3 mm for processing scheme of general principle is: the first rough then essence, first far, after nearly far after the first, the procedures section, at least the shortest line of feeding and special circumstances special processing.
Processing route and the relationship between the machining allowance: in the numerical control lathe has not yet reached its widespread use condition, the general should leave blank on the excessive surplus, big margin blank for ladder cutting processing route, stratified cutting tool position.
The above information is derived from the shenzhen Xavier company CNC precision machinery plant.
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