When you get a workpiece, the technology will sequence the processing
workers when making the process program card, so do you know what the
processing sequence of precision parts is?
For the processing
industry, the order is very important, it is related to the quality
assurance of the products, if one order is wrong, it is easy to cause a
lot of losses. , Precision parts processing is one of them, so what is
its order?
1. The arrangement of the machining sequence of
precision parts should be considered according to the structure and
blank condition of the parts, as well as the needs of positioning and
clamping. The key point is that the rigidity of the workpiece is not
damaged.
(1) The processing of the previous process cannot affect
the positioning and clamping of the next process, and the processing
process of general precision parts interspersed in the middle should
also be considered comprehensively.
(2) The inner shape and inner
cavity processing process is carried out first, and then the outer
shape processing process is carried out.
(3) It is best to carry
out the same positioning, clamping method or the same tool processing
process in order to reduce the number of repeated positioning, the
number of tool changes and the number of times of moving the platen.
(4)
For multiple processes carried out in the same installation, the
process with little damage to the rigidity of the workpiece should be
arranged first.
2. The tool centralized sorting method is to
divide the process according to the tools used, and use the same tool to
process all the parts that can be completed on the part. Doing the rest
of the way they can with the second knife, the third. This can reduce
the number of tool changes, compress the idle time, and reduce
unnecessary positioning errors.
3. Using the processing part
sequence method For parts with a lot of processing content, the
processing part can be divided into several parts according to their
structural characteristics, such as inner shape, outer shape, curved
surface or plane, etc.
Generally, the plane and positioning surface are processed first, and then the hole is processed.
Process simple geometric shapes first, and then process complex geometric shapes.
The parts with lower precision are processed first, and then the parts with higher precision are processed.
The parts with lower precision are processed first, and then the parts with higher precision are processed.
