Profiling tool for hula seal

Abstract

The utility model relates to a profiling tool, in particular to a profiling tool for hula sealing. The hula seal aims to solve the problems that in the prior art, a hula seal is difficult to form, the shape and the size are difficult to guarantee, and then the appearance and the using performance of a finished product are affected. The device is simple in structure and convenient to operate, a plate is placed between the male die and the female die, a hydraulic rod of the pressing machine is controlled to ascend and descend, the plate is moved and rotated at the same time for repeated pressing till the plate is pressed into a barrel shape, welding is conducted after pressing is completed, and hula seal manufacturing is completed. The hula seal can be manufactured efficiently, and the shape and the size of the hula seal meet the use requirements. The utility model belongs to the technical field of hula seal manufacturing.

Description

Technical Field

[0001] The utility model relates to a pressing tool, in particular to a pressing tool used for hula seals, and belongs to the technical field of hula seal manufacturing. Background Art

[0002] The head nozzle of the combustion chamber of a heavy-duty gas turbine unit adopts hula seal, and its shape and size are important indicators of the quality of the combustion chamber. The wall thickness of the hula seal is thin and the line is complex, which makes it difficult to form and it is difficult to ensure the shape and size, which in turn affects the appearance and performance of the finished product.

[0003] In summary, how to propose a pressurizing device to address the above technical issues has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a press tooling for hula sealing.

[0005] The technical solution of the utility model is: a pressing tool for hula sealing, comprising a supporting frame, a convex die, a concave die and a concave die seat.

[0006] The support frame is a rectangular frame structure, and the support frame is fixedly connected to the hydraulic rod of the press.

[0007] The punch is fixedly connected to the support frame, and the profile of the punch is the same as the profile of the inner circumferential surface of the hula seal.

[0008] The concave die is a rectangular plate-shaped structure, and the profile of the concave die is the same as the profile of the outer circumferential surface of the hula seal.

[0009] A die groove is formed on the die seat, the depth of the die groove is greater than the thickness of the die, and the die is fixed in the die groove.

[0010] The die holder is installed on the base of the press.

[0011] Compared with the prior art, the utility model has the following effects:

[0012] 1. The utility model has a simple structure and is easy to operate: the sheet is placed between the male die 2 and the female die 3, and the hydraulic rod of the press is controlled to rise and fall, and the sheet is moved and rotated at the same time for repeated pressing until the sheet is pressed into a cylindrical shape. After the pressing is completed, welding is performed to complete the manufacture of the hula seal. The utility model can efficiently complete the manufacture of the hula seal, and the shape and size of the hula seal meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 Cross-sectional view in the A direction;

[0015] Figure 3 It is a schematic diagram of the arrangement of the male die 2 and the female die 3 of the utility model;

[0016] Figure 4 It is a front view of the die base 4 of the utility model.

[0017] In the figure: 1. support frame; 2. punch; 3. die; 4. die seat; 4-1. die groove. DETAILED DESCRIPTION

[0018] In order to make the utility model objectives, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the implementation modes of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation modes of the utility model.

[0019] Specific implementation method 1: Combination Figures 1 to 4 The present embodiment is described. A pressing tool for hula sealing in the present embodiment includes a support frame 1 , a male die 2 , a female die 3 and a female die seat 4 .

[0020] The support frame 1 is a rectangular frame structure, and the support frame 1 is fixedly connected to the hydraulic rod of the press.

[0021] The punch 2 is fixedly connected to the support frame 1, and the profile of the punch 2 is the same as the profile of the inner circumferential surface of the hula seal.

[0022] The die 3 is a rectangular plate-shaped structure, and the profile of the die 3 is the same as the profile of the outer circumferential surface of the hula seal.

[0023] The die seat 4 is provided with a die groove 4-1, the groove depth of the die groove 4-1 is greater than the thickness of the die 3, and the die 3 is fixedly connected in the die groove 4-1.

[0024] The die holder 4 is mounted on the base of the press.

[0025] Specific implementation method 2: Combination Figures 1 to 4 To explain this embodiment, in this embodiment, the support frame 1 is connected to the hydraulic rod of the press by bolts.

[0026] Furthermore, the punch 2 is connected to the support frame 1 by bolts, and the die 3 is installed in the die groove 4-1 by bolts.

[0027] Other components and connection relationships are the same as those in the first specific implementation method.

[0028] Specific implementation method three: Combination Figures 1 to 4 The present embodiment is described. In the present embodiment, the support frame 1 and the die holder 4 are both made of 45 steel.

[0029] Furthermore, the material of the punch 2 and the die 3 is CrWMn (chromium tungsten manganese steel).

[0030] The other components and connection relationships are the same as those in the first or second specific implementation.

[0031] How it works

[0032] First, the various components are assembled according to the connection relationships in Specific Implementation Methods 1 to 3.

[0033] Then calculate the unfolded length of the hula seal and start cutting the hula seal into square sheets.

[0034] The sheet material is then placed between the punch 2 and the die 3, and the hydraulic rod of the press is controlled to rise and fall, while the sheet material is moved and rotated for repeated pressing until the sheet material is pressed into a cylindrical shape.

[0035] Finally, the profile shape of the hula seal is tested with a sample. Once the profile is qualified, profiling is completed. After profiling, welding is performed to complete the manufacture of the hula seal.

[0036] The present invention has been disclosed as above in the form of a preferred embodiment, but it is not intended to limit the present invention. Any simple modification, equivalent changes and modifications made to the above implementation cases by any professional and technical personnel who do not deviate from the content of the technical solution of the present invention and based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A press tool for hula sealing, characterized in that: It comprises a support frame (1), a male die (2), a female die (3) and a female die seat (4); The support frame (1) is a rectangular frame structure, and the support frame (1) is fixedly connected to the hydraulic rod of the press; The convex mold (2) is fixedly connected to the support frame (1), and the profile of the convex mold (2) is the same as the profile of the inner circumferential surface of the hula seal; The concave mold (3) is a rectangular plate-shaped structure, and the profile of the concave mold (3) is the same as the profile of the outer circumferential surface of the hula seal; The die seat (4) is provided with a die groove (4-1), the depth of the die groove (4-1) is greater than the thickness of the die (3), and the die (3) is fixedly connected in the die groove (4-1); The die base (4) is mounted on the base of the press.

2. A press tool for hula sealing according to claim 1, characterized in that: The support frame (1) is connected to the hydraulic rod of the press via bolts.

3. A press tool for hula sealing according to claim 2, characterized in that: The male die (2) is connected to the support frame (1) via bolts, and the female die (3) is installed in the female die groove (4-1) via bolts.

4. A press tool for hula sealing according to claim 3, characterized in that: The support frame (1) and the die seat (4) are both made of 45 steel.

5. A press tool for hula sealing according to claim 4, characterized in that: The material of the male die (2) and the female die (3) are both CrWMn.

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