Why Does The Machining Accuracy Of Precision Hardware Parts Get Worse And Worse?

Precision hardware can be cut according to production needs, and then some small accessories can be cut or CNC machining, and precision hardware parts must be cut punched, then welded, and then sanded, oil sprayed after the accessories are made. It should be reminded that small accessories also need to be plated or oil-sprayed on the surface after polishing. There are many cases of batch processing of precision hardware processing parts, therefore, the accuracy of hardware parts almost determines the quality of the product, the more precise the hardware parts, the higher the accuracy requirements, so why does the processing accuracy of precision hardware parts deteriorate?

1. The machining accuracy of the parts themselves is poor, generally speaking, if the dynamic error between the shafts is not adjusted well during installation, or because the shaft transmission chain changes due to wear and tear, the accuracy of the parts will be affected. In general, the accuracy check caused by this type of error can be solved by readjusting the compensation amount. If the error is too large or even if an alarm is generated, it is necessary to check the servo motor to see if its speed is too high.

2. The overshoot of the machine tool during operation will also affect the machining accuracy, which may be because the acceleration and deceleration time is too short, and the appropriate extension of the change time, of course, it is also very likely that the link between the lead screw and the servo motor is loose.

3. Because the roundness of the two axes is out of tolerance, the axial deformation of the circle is not adjusted by the machinery, the screw clearance compensation of the shaft is incorrect or the shaft positioning is offset, which may affect the accuracy of precision parts.

Precision hardware processing technology:

1. The processing process route has great uncertainty, a part or product can have a variety of processes, and there are many kinds of machinery and equipment and fixtures required in the production process.

2. Hardware manufacturing enterprises are mainly scattered processing, and the quality and productivity of products depend to a large extent on the technical level of workers, while the degree of automation is mainly at the unit level, such as CNC machine tools, flexible manufacturing systems, etc.

3. Product parts and components are generally combined with self-made and outsourced processing. For example, special processes such as electroplating, sandblasting, oxidation, silk screen printing and laser engraving will be entrusted to external manufacturers.

4. There are many parts needed, and the workshop site often needs to fill in a large number of picking lists and will see the production list that is "slotted", and if there is process management, a large number of process transfer orders need to be filled.