Repairing method for compressor stator blade punching die
A technology of stator blade and punching die, applied in the field of machinery, can solve the problems of complex stress state, can not completely solve the problem of thin edge edge curling, etc., to ensure stability, solve punching curling defects, good stamping process sexual effect
Active Publication Date: 2016-01-06
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
After repairing by the above method, the curling situation can be alleviated to a certain extent, but because there is a certain distortion in the upper and lower profiles of the compressor stator blade 1, the stress state during punching is complicated, and the top block 24 after such repair It cannot support the material very well, therefore, the above-mentioned traditional coloring and grinding cannot completely solve the problem of edge curling of thin edges
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[0016] In order to have a clearer understanding of the technical features, purposes and effects of the invention, specific embodiments of the invention will now be described with reference to the accompanying drawings. Wherein, the same parts use the same reference numerals.
[0017] figure 1 It is a schematic diagram of the structure of a compressor stator blade; image 3 It is a schematic diagram of the principle of a method for repairing a punching die for a compressor stator blade according to a specific embodiment of the present invention; Figure 4 for image 3 A schematic top view of the top block. see figure 1 , 3 As shown in -4, the present invention proposes a repair method for a punching die for a compressor stator blade, which is used for repairing the profile of the top block 24 of the punching die 2, and the compressor stator blade 1 has a thicker It has an arc-shaped head end 11, a thinner tail end 12, a blade root 13 provided with two notches 131 and a bl...
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A repairing method for a compressor stator blade punching die comprises the following steps that firstly, polishing is carried out on a coloring point on a top block until polishing is even; then, the middle area of the top block is polished away by 0 mm to 0.3 mm, and it is ensured that the middle area is in smooth transition with the head end area and the tail end area; and finally, the head end area of the top block is evenly polished away by 0.1 mm, and it is ensured that the head end area is in smooth transition with the middle area. Accordingly, repairing of the top block is completed. The repairing method for the compressor stator blade punching die solves the problem that due to the structural characteristics of a blade, punching edge rolling is prone to appearing; the punching quality of the blade is ensured; meanwhile, the repairing method enables the punching die to have the good punching manufacturability; and stability of the blade product quality is ensured.
Description
technical field [0001] The invention relates to the field of machinery, in particular to a method for repairing the profile of a punching die, in particular to a method for repairing a punching die for a stator blade of a compressor. Background technique [0002] figure 1 is a schematic diagram of the structure of a compressor stator blade, see figure 1 As shown, the compressor stator blade 1 has a thicker curved head end 11, a thinner tail end 12, a blade root 13 and a blade tip 14, the thinnest part of the tail end 12 Only 0.15mm, the blade root 13 is provided with two notches 131 . The compressor stator blade 1 is processed and manufactured by punching. figure 2 for manufacturing figure 1 The schematic diagram of the structure of the existing punching die of the compressor stator blade shown, see figure 2 As shown, the punching die 2 includes a bottom plate 21, a concave die 22 arranged on the bottom plate 21, a punch 23 that can reciprocate up and down correspondi...
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IPC IPC(8): B23P6/04B21D28/02B24B1/00
CPCB21D28/02B23P6/04B24B1/00
Inventor 张小青詹妮项德义黄兰
Owner CHINA HANGFA SOUTH IND CO LTD