A combined hydraulic bulging die for manufacturing rectangular metal bellows
A metal bellows and hydraulic bulging technology, which is applied in the field of hydraulic bulging molds, can solve the problems of low utilization rate, poor versatility, and long processing cycle, and achieve the effects of prolonging service life, saving manufacturing costs, and reducing processing difficulty
Active Publication Date: 2022-04-15
XI'AN PETROLEUM UNIVERSITY +1
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Problems solved by technology
[0006] In order to solve the above technical problems, the object of the present invention is to provide a combined hydraulic bulging die for manufacturing rectangular metal bellows, which solves the problems of long processing cycle, poor versatility, and low utilization rate of traditional metal bellows hydraulic bulging dies. question
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[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0050] Such as Figure 1~2 Shown: a combined hydraulic bulging mold for manufacturing rectangular metal bellows, including upper guide plate 2, lower guide plate 8, guide post 1, guide post bushing 10, end cover 3, upper die piece 4, middle die Composite module (comprising outer ring 6, straight line section 13, fillet section 29), lower end module 7, positioning block 5, upper mandrel 11, lower mandrel 15, rubber sealing ring 14.
[0051] Such as Figure 13 As shown: the lower guide plate 8 is a rectangular plate with transition rounded corners, the rectangular plate is provided with a lower mandrel placement hole 24 and four guide post installation holes 25, and the lower mandrel placement hole 24 is located at the centroid of the lower guide plate Position, the guide post installation hole 25 is located at the inner edge of the rectangular plate, general...
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A combined hydraulic bulging mold for manufacturing rectangular metal bellows, including an upper guide plate, a lower guide plate, a guide post, a guide post bushing, an end cover, an upper end die, a combined die, a lower end die, a positioning block, Upper mandrel, lower mandrel, rubber sealing ring. Guide posts are installed on the lower guide plate, and end covers are arranged above the lower guide plate and below the upper guide plate. The guide post bushing is installed on the upper guide plate, and is installed on the uppermost layer of the mold in cooperation with the guide post. The lower mandrel is installed above the lower end cover, and the upper mandrel is installed below the upper end cover and fixed by a set nut. Rubber sealing rings are installed on the upper mandrel and the lower mandrel. A lower end mold piece and a rectangular tube blank are installed above the lower end cover, and a positioning block is arranged between the mold pieces. The combination module is installed above the positioning block, and the upper module is installed under the upper end cover. The invention has the advantages of high utilization ratio of the round corner section and the straight section of the composite mold piece, low mold manufacturing cost, high production efficiency, and convenient disassembly and assembly.
Description
technical field [0001] The invention relates to the technical field of hydraulic bulging molds, in particular to a combined hydraulic bulging mold for manufacturing rectangular metal bellows. Background technique [0002] As an elastic element, metal bellows are widely used in petrochemical, aerospace, nuclear power and other fields. They perform functions such as flexible compensation, sealing, and vibration reduction. They are one of the important parts of pipeline connection systems, sealing systems, and vibration reduction systems. [0003] In recent years, due to the vigorous development of high-tech projects represented by my country's new generation of heavy-duty rockets, gas turbines, large aircraft, and nuclear power, higher requirements have been placed on piping and sealing systems. In order to meet environmental requirements, such as rectangular fan piping , flue, waveguide, etc., the circumferential outline of the metal bellows needs to be in the form of a rectan...
Claims
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IPC IPC(8): B21D15/06B21D15/10B21D26/047
CPCB21D15/06B21D15/10B21D26/047
Inventor 刘静吕志勇左星煜刘强葛前任舒心
Owner XI'AN PETROLEUM UNIVERSITY