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Integral forming die for gas turbine flame tube inner ring and forming method

A technology of integral molding and flame tube, applied in the field of machining, can solve the problems of difficult control, poor stability, difficult operation, etc., and achieve the effect of improving work efficiency, ensuring profile quality and dimensional accuracy, and reducing workload.

Inactive Publication Date: 2021-06-08
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

180 triangular skirts are pressed in 1002 groups, the uniformity of skirt distribution is poor, the labor intensity is high, the processing time is long, the diameter tolerance of front and rear ends is 0.9mm, it is difficult to control, the stability is poor, and it is not easy to operate

Method used

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  • Integral forming die for gas turbine flame tube inner ring and forming method
  • Integral forming die for gas turbine flame tube inner ring and forming method
  • Integral forming die for gas turbine flame tube inner ring and forming method

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Embodiment Construction

[0048] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0049] like Figure 1-11 As shown, a mold for integrally forming the inner ring of a gas turbine flame tube includes a mold frame with four guide columns for a cold stamping die 2, a cone 3, a guide plate 4, a top plate 5, an expansion flap 6, a fixed plate 7, a wedge block 8, and a lower die 9. Upper die 10, die insert 11, reset bolt 12 and discharge ring 13;

[0050] The four guide post formwork 2 of the cold stamping die is a standard formwork, and the four guide post formwork 2 of the cold stamping die is composed of a lower formwork 21, an upper formwork 22, four guide pillars and guide sleeves. On the lower formwork 21, there are ejector pin through holes and cone installation center holes corresponding to the position of the hydraulic press ejector pin hole;

[0051] Described cone 3 comprises cylindrical section 31 and co...

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Abstract

The invention relates to an integral forming die for a gas turbine flame tube inner ring and a forming method. The die comprises a cold-punching die four-guide-column die frame, a cone, a guide plate, a top plate, an expansion petal, a fixed plate, a wedge block, a lower female die, an upper female die, a female die insert, a reset bolt and a discharging circular ring. Profile quality and size precision of the gas turbine flame tube inner ring are guaranteed through an integral forming method. The workload of manual shape correction is reduced, and the working efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to an integral molding die and a molding method for the inner ring of a gas turbine flame cylinder. Background technique [0002] For the structure of the inner ring of the flame tube of a certain type of gas turbine, see Figure 12 and Figure 13 . The formed flame tube inner ring 1 is a thin-walled conical tube. The lower end of the flame tube inner ring 1 is a triangular skirt 1002 uniformly distributed along the circumferential direction at 180 places. R-shaped arc rib 1001. [0003] The inner ring assembly of the gas turbine flame tube is made of 10 sections of the inner ring of this type of structure lapped by vacuum brazing. The matching gap between the vacuum brazing parts is small. The tolerance is 0.9mm, and the tolerance level is IT12, which is equivalent to the tolerance of machining. Therefore, the forming dimension accuracy is high, the structure is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D22/02
CPCB21D37/10B21D22/02
Inventor 李英涂泉唐文仲赵海李兵兵王绪坚
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD