CNC machining principle: when the nc system is activated, the required processing size be programmed into the software, and assigned to the corresponding tools and machines, they are the size of the specified tasks titanium machining parts like a robot. In the numerical control programming, in the digital system The code generator usually assumes that the mechanism is perfect. Despite the possibility of error, but when the numerical control machine were instructed to multiple direction cutting at the same time, that will be more likely. Cutting tools in numerical control system of placement program consists of a series called parts Summary of the input.
The advantages of CNC CNC machining:
Number of (1) a substantial reduction in tooling, processing complicated shape parts does not need complex tooling. To change the shape and size of the parts, only need to modify parts processing procedure, suitable for the development of new products and upgrading.
(2) stable machining quality, high machining accuracy, high repeat precision, satisfy the processing requirements.
(3) in the case of many varieties, small batch production, high deep draw stamping production efficiency, can reduce the production preparation, machine tool adjustment and process the test of time, and reduce the cutting time by using the cutting quantity.
Conventional methods can be processed (4) to the complexity of surface processing, processing and some even can observe the machining parts.
In mechanical parts processing industry, processing error refers to the actual size after parts processing, and the degree of deviation between ideal size, usually machining error is smaller, illustrate parts conform to the degree is higher, the precision of the processing, the higher the processing precision and Processing error is refers to the same meaning; Then from shenzhen to introduce the mechanical parts processing what are prone to error:
1, the positioning error: positioning error is mainly including benchmark misalignment error and deputy produce inaccurate positioning error.
2, measuring error: as measured parts after machining or due to measurement method, the measuring precision and the workpiece and the subjective and objective factors directly affect the accuracy of measurement.
3, cutting tool error: any cutting tool in cutting process is inevitable to produce wear and tear, and the resulting artifact size and shape to change. Error: 4, clamp fixture's role is to make the workpiece is equivalent to metal stamping parts cutting tool and machine tool has the correct position, so the fixture geometric error on machining errors of position error (especially) has a great influence 5, machine tool error: including the error of spindle, guide and transmission chain errors. The spindle rotation error refers to the actual rotary spindle each moment axis relative to the average amount of changes in the rotation axis, it will directly affect the machining precision.