Expansion sleeve
A technology of expansion sleeve and air bag, which is applied in the field of piston ring processing tools, can solve the problems of troublesome operation, different processing quality of products, high production cost, etc., and achieve the effect of improving processing efficiency, same expansion degree, and consistent honing amount
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[0022] The present invention will be described in detail below in conjunction with the drawings. It should be noted that the terms left, center, right, up, and down in the examples of the present invention are only relative concepts or refer to the normal use of the product, and should not be considered restrictive. .
[0023] A kind of expansion, such as figure 1 with figure 2 As shown, the airbag inner shaft is included, and the airbag 5 is fixedly sleeved on the airbag inner shaft, and a groove 13 is opened on the outer circumference of the airbag inner shaft 1 at a position corresponding to the inner wall of the airbag 5, and the groove An air cavity is formed between 14 and the airbag 5. An inflation channel 12 is provided inside the inner shaft 1 of the airbag. One end of the inflation channel 12 communicates with the air cavity, and the other end of the inflation channel 12 is located at The end of the inner shaft 1 of the airbag communicates with the outside; an outer e...
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