With the industry's products, in the continuous increase, also led to the emergence of other processing methods, hardware parts processing is one of them, in the use of time, we will find some small problems, hardware parts processing, which factors affect the accuracy of what? What causes it?

The original error of the process system: the geometric error of the process system such as the machining principle error, the geometric accuracy of the machine tool, the manufacturing error of the tool and the tool, and the device error of the workpiece. The mechanical deformation, thermal deformation and error caused by internal stress of the process system will affect the accuracy of the parts. Processing principle errors such as consumer approximate processing, forming processing, etc., processing principle errors only need to be limited to the agreed tolerance, and can often greatly improve the consumption rate.

Errors in the geometric accuracy of machine tools for hardware parts, such as radial and axial beating errors when the spindle is rotated. The error of straightness in the vertical direction of the guide rail and the error of parallelism between the guide rail and the guide rail. Error of machine tool drive chain.

Error of tool error measurement and thermal deformation error of process system in hardware parts processing. The workpiece, the thermal deformation of the tool, the heat of cutting, the heat of friction, and the incidental heat, so many fine machine tools are placed in the temperature workshop. The remaining stress in the cutting process caused by the stress in the workpiece causes the workpiece to produce deformable deformation.

Therefore, in order to reduce the machining accuracy of the original error formation, we usually think that the machine tool stops self-driving, self-milling, self-grinding, self-cutting to minimize the machining error of the original error formation. For example, using an old milling machine to process the parallelism, vertical degree, and plane degree of aluminum alloy products with an appearance of 200 * 20 * 400, or within 0.03, or using an inaccurate lathe to process a clever long shaft, Another example is to use the old wire cutting machine tool to process a set of parts with a circle coaxial degree within 0.02 inside and outside. When we think that the machining precision is unmanageable, we must think of taking the self-car, self-milling, self-grinding, etc.. Self-cutting these methods to relieve.