Precautions for cnc parts processing:
The basic principle of processing is incorrect
Critical errors in CNC parts processing are caused by similar machining exercises or similar tool contours. Because the basic principle of processing is incorrect, it is called the basic principle of processing error. If the critical error is within the allowable scale, the treatment of this type of variety is still feasible.
2. Geometry errors of CNC lathes
Manufacturing errors in the production of mechanical equipment, device errors and damage during the entire use process immediately impair the processing accuracy of the workpiece. It mainly includes the rotation exercise of the axis of the lathe, the linear motion of the slide rail of the CNC lathe and the transmission gear error of the CNC lathe.
4. Incorrect tooling and fixture
The fixture errors in CNC parts processing include positioning errors, clamping errors, fixture device errors and tool setting errors. The key to this error is related to the production and production of fixtures and the accuracy of the assembly line.
5. The machining accuracy of CNC lathe parts is not perfect. If the error is manipulated within a certain scale, it will not be easy to have any practical significance. Production errors and damages in the production of special tools.
6. Incorrect positioning
Positioning errors include reference non-pointing errors and positioning sub-production errors. When machining a workpiece on a CNC lathe, several geometric primitives on the workpiece must be selected as the positioning reference for the machining of the part. It is assumed that the selected positioning reference and design basis are used (reference is used to clarify the appearance specifications and positions on the part drawing). Assuming non-pointing occurs, a reference non-pointing error will be formed. The positioning pair of the workpiece positioning surface and the fixture positioning component occurs. The positioning position is not accurate, and the large deviation of the workpiece formed by the matching open space of the positioning to the center is called positioning. The inaccuracy of the sub-production is incorrect. Inaccurate errors in positioning and production are only formed when the conditioning method is used, and it is not easy to occur in the whole process of trial cutting.
3. Production errors and damages of special tools
Production errors, device errors and damages in the production process of CNC parts processing tools damage the machining accuracy of the workpiece. In the whole process of laser cutting, the cutting edge, the drilling surface and the workpiece and cutting form significant friction, which may cause damage to the tool. When the special tool is damaged to a fixed value, the roughness value of the workpiece is increased, and the color harmony and posture of the integrated IC are changed, which is accompanied by a sensation. Damage to the tool will immediately damage the drilling yield, processing quality and cost.