Cold die clearances between control and
adjusting method
Cold stamping mould convex, concave die size and distribution of the
clearance degree directly affect the quality of the blanking pieces and the
length of the service life of the die. Precision
stamping partsIn guarantee blanking pieces space is mould
manufacturing assembly very important link, and assembly quality will directly
influence the convex, concave die if the clearance between the uniform. Such as
the process of convex, concave die size precision although already meet the
requirements, but in assembling if adjustment is bad, can cause clearance does
not even, rushed out of the spare parts of the raw edges. Even rushed out of
unqualified parts. The mold assembly is key to control convex, concave die of
relative positions, in order to ensure that the convex, concave die, uniform
and the clearance between the right to rush out of qualified parts.
Die
before assembly the problems that should be paid attention
Convex, concave die and mould parts itself is clearance of the
precision, and the assembly of the assembly process is reasonable. In order to
ensure that the position of the convex, concave die correctly and gaps even,
mould design, processing to assembly from the whole link should pay attention
to the following questions：
（1）Convex, concave die
design and manufacture of the right
Design should be based on the above all when die cutting the section of
a quality, service life of die factors such as the reasonable selection of
convex, concave die clearance. And to consider the mould in the process of
using that gap wear increases,
Precision stamping parts general in the design the
least reasonable clearance when mould. And in the manufacturing process can
ensure the parts processing precision and quality, in the assembly process ensure
convex, concave die gap even, this for processing complex shape is very key
parts.
（2）Assembly method the
choice should be reasonable
Die assembly method include roughly assembly method and direct with
assembly method. Before the assembly must be carefully study mold assembly
drawing, full consideration and analysis of the structure characteristics of
punching die, Precision stamping partsdie parts processing
technology and processing accuracy etc, in order to choose convenient, accurate
and reliable assembly method to ensure the quality of blanking pieces
