Sheath structure of hot isostatic pressing die

Abstract

The utility model discloses a hot isostatic pressing die sheath structure, which relates to the technical field of sheaths, and comprises a sheath main body and a cover plate, a fixing structure is arranged between the sheath main body and the cover plate, and the fixing structure comprises a first fixing plate and a second fixing plate. Through the arrangement mode that the fixing structure is matched with the sealing structure, direct welding between the cover plate and the sheath main body is not needed for connection between the sheath main body and the cover plate, and welding loss between the cover plate and the sheath main body can be reduced; the cover plate and the sheath main body can be fixedly connected through welding between the first fixing plate and the second fixing plate, so that after the first fixing plate and the second fixing plate are cut and separated, the cover plate can be quickly taken down from the sheath main body, the cover plate and the sheath main body do not need to be deformed and damaged due to cutting, and the service life of the cover plate and the sheath main body is prolonged. The service lives of the cover plate and the sheath main body are prolonged, and the practicability of the sheath main body is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of sheathing, in particular to a hot isostatic pressing die sheathing structure. Background Art

[0002] Hot isostatic pressing refers to placing the product in a closed container, degassing the powder blank in the package at a certain temperature and vacuum level to ensure the vacuum atmosphere in the package, and then applying equal pressure in all directions while applying high temperature. Under the action of high temperature and high pressure, the product can be sintered and densified.

[0003] In the above process, the sleeve is one of the key structures to ensure the performance of the product. The sleeve usually includes a sleeve body and two upper and lower cover plates. When in use, the cover plates and the sleeve body generally need to be welded to ensure the sealing of the sleeve cavity. However, the existing cover plate and the sleeve body are directly welded, so that the subsequent discharge of the ingredients in the sleeve body requires cutting the connection between the cover plate and the sleeve body, which can easily cause damage to the cover plate or the sleeve body, making it impossible to reuse, increasing the use cost of the sleeve and reducing the practicability of the sleeve. Therefore, in order to solve the above problems, a hot isostatic pressing mold sleeve structure is proposed. Utility Model Content

[0004] The utility model aims to provide a hot isostatic pressing die sleeve structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a hot isostatic pressing mold sleeve structure, comprising a sleeve body and a cover plate embedded in the top of the sleeve body, a fixing structure is arranged between the sleeve body and the cover plate, and the fixing structure comprises:

[0006] A first fixing plate, the first fixing plate is semi-annularly fixed to the outer wall of the package body and the cover plate;

[0007] The second fixing plate is fixedly arranged at the end of the first fixing plate and is located at the outer wall of the package body and the cover plate. The second fixing plate is fixed to the first fixing plate to limit the position of the cover plate on the package body.

[0008] Preferably, the fixing structure further comprises:

[0009] A plurality of first connection blocks, wherein the plurality of first connection blocks are respectively fixedly disposed on the end surfaces opposite to the first fixing plate and the second fixing plate, and the first connection blocks are used to limit the positions of the first fixing plate and the second fixing plate on the package body and the cover plate;

[0010] A plurality of second connection blocks, wherein the plurality of second connection blocks are symmetrically fixedly disposed on opposite end surfaces of the first fixing plate and the second fixing plate;

[0011] A plurality of connection grooves are respectively provided on the outer walls of the package body and the cover plate, and the connection grooves are used to provide installation space for the first connection block and the second connection block.

[0012] Preferably, a sealing structure is provided between the package body and the cover plate, and the sealing structure comprises:

[0013] A sealing groove, the sealing groove is opened at the top of the sleeve body, and the sealing ring is in a circular ring shape;

[0014] A sealing ring is fixedly arranged at the bottom end of the cover plate and is extruded and embedded in the inner cavity of the sealing groove.

[0015] Preferably, the sealing structure further includes an air extraction hole and an air extraction pipe, the air extraction hole is opened at the top end of the cover plate, and the air extraction pipe is fixedly arranged in the inner cavity of the air extraction hole.

[0016] Preferably, the second connecting block is triangular in shape, and the shape of the inner cavity of the connecting groove through which the second connecting block is inserted is consistent with the shape of the second connecting block.

[0017] Preferably, the sealing ring is any one of elastic rubber or elastic silicone, and the sealing ring and the sealing groove are extruded and embedded to seal the inner cavity of the sheath body.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model adopts the arrangement mode of matching the fixing structure and the sealing structure, so that the connection between the sheath body and the cover plate does not require direct welding of the cover plate and the sheath body, which can reduce the welding loss between the cover plate and the sheath body, and enables the cover plate and the sheath body to be connected and fixed by welding between the first fixing plate and the second fixing plate, so that after the first fixing plate and the second fixing plate are cut and separated, the cover plate can be quickly removed from the sheath body, and the cover plate and the sheath body do not need to be deformed and lost due to cutting, thereby improving the service life of the cover plate and the sheath body and enhancing the practicality of the sheath body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the cover plate of the utility model.

[0023] In the figure: 1. package body; 2. cover plate; 3. sealing structure; 301. sealing groove; 302. sealing ring; 303. exhaust hole; 304. exhaust pipe; 4. fixing structure; 401. first fixing plate; 402. second fixing plate; 403. first connecting block; 404. second connecting block; 405. connecting groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-3 A hot isostatic pressing mold sleeve structure shown includes a sleeve body 1 and a cover plate 2 embedded in the top of the sleeve body 1, and the bottom end of the sleeve body 1 is also provided with a cover plate 2. The way in which the bottom end of the sleeve body 1 is connected to the cover plate 2 is the same as the way in which the top cover plate 2 is connected. Therefore, in this embodiment, the structure of the bottom end of the sleeve body 1 is no longer explained. A fixing structure 4 is provided between the sleeve body 1 and the cover plate 2. The fixing structure 4 includes a first fixing plate 401 and a second fixing plate 402. The first fixing plate 401 is semi-annularly fixed to the outer walls of the sleeve body 1 and the cover plate 2, and the second fixing plate 402 is fixed to the end of the first fixing plate 401 and is located on the outer walls of the sleeve body 1 and the cover plate 2. The second fixing plate 402 is fixed to the end of the first fixing plate 401 and is located on the outer walls of the sleeve body 1 and the cover plate 2. The second fixing plate 402 is used to limit the position of the cover plate 2 on the sleeve body 1 by fixing it to the first fixing plate 401.

[0026] First, if Figure 1 and Figure 2As shown in the figure, the ends of the first fixing plate 401 and the second fixing plate 402 are aligned with each other to form a circular ring sleeved on the outer wall connected to the sheath body 1 and the cover plate 2, so that after the cover plate 2 covers the top of the sheath body 1, the first fixing plate 401 and the second fixing plate 402 can be used to tightly fit the connection between the sheath body 1 and the cover plate 2 to ensure the tightness of the embedding between the sheath body 1 and the cover plate 2. Under the fixation of the first fixing plate 401 and the second fixing plate 402, the shape of the cover plate 2 only needs to be consistent with the cross-sectional shape of the top end of the sheath body 1, so that the sheath body 1 can be sealed and used, and there is no need to use an oversized cover plate 2, which reduces the cost of producing the cover plate 2, and at the same time improves the tightness of the cover plate 2 and the sheath body 1, and strengthens the sealing effect of the sheath body 1. Then, the ends of the first fixing plate 401 and the second fixing plate 402 that are aligned are fixed by welding, and are separated from the welding position by cutting when released, so that the first fixing plate 401 and the second fixing plate 402 can be reused, with a simple structure, low cost of use, and strong practicality.

[0027] Secondly, the fixing structure 4 also includes a plurality of first connecting blocks 403, a plurality of second connecting blocks 404 and a plurality of connecting grooves 405. The plurality of first connecting blocks 403 are respectively fixedly arranged on the opposite end faces of the first fixing plate 401 and the second fixing plate 402. The first connecting blocks 403 are used to limit the positions of the first fixing plate 401 and the second fixing plate 402 on the sheath body 1 and the cover plate 2. The plurality of second connecting blocks 404 are respectively symmetrically fixedly arranged on the opposite end faces of the first fixing plate 401 and the second fixing plate 402. The plurality of connecting grooves 405 are respectively opened on the outer walls of the sheath body 1 and the cover plate 2. The connecting grooves 405 are used to provide installation space for the first connecting blocks 403 and the second connecting blocks 404. The second connecting blocks 404 are triangular in shape. The inner cavity shape of the connecting grooves 405 through which the second connecting blocks 404 are inserted is consistent with the shape of the second connecting blocks 404.

[0028] Then, if Figure 2As shown in the figure, the shape of the first connecting block 403 is a rectangle, and the connecting groove 405 corresponding to the first connecting block 403 is a rectangle. The second connecting block 404 is different from the rectangular setting in order to adapt the first fixing plate 401 and the second fixing plate 402 to align their positions horizontally from the outer wall of the sheath body 1, so that when the ends of the first fixing plate 401 and the second fixing plate 402 are aligned, the first connecting block 403 and the second connecting block 404 can be inserted and connected with the connecting groove 405 at the corresponding position, so that the triangular setting of the second connecting block 404 enables the second connecting block 404 to slide with the side of the inner cavity of the corresponding connecting groove 405 as the positions of the first fixing plate 401 and the second fixing plate 402 move, thereby ensuring that the second connecting block 404 moves in the inner cavity of the connecting groove 405 The smoothness of the connection between the cover plate 2 and the sleeve body 1 is improved, and the connection between the cover plate 2 and the sleeve body 1 is restricted while the first connecting block 403 and the second connecting block 404 are connected with the connecting groove 405 at the corresponding position through the insertion. This ensures the stability of the position of the cover plate 2 on the sleeve body 1, thereby enhancing the stability of the use of the sleeve body 1 and the cover plate 2. In the above process, with the cooperation of the first connecting block 403, the second connecting block 404 and the connecting groove 405, the connection between the cover plate 2 and the sleeve body 1 is kept stable, and welding between the cover plate 2 and the sleeve body 1 is avoided. This ensures that the cover plate 2 and the sleeve body 1 can be firmly connected, and also facilitates subsequent disassembly and assembly, which provides convenience for taking out the embryo in the sleeve body 1, and also improves the use efficiency of the sleeve body 1 and enhances the practicality of the sleeve body 1.

[0029] Furthermore, a sealing structure 3 is provided between the package body 1 and the cover plate 2, and the sealing structure 3 includes a sealing groove 301 and a sealing ring 302. The sealing groove 301 is opened at the top of the package body 1, and the sealing groove 301 is in a circular ring shape. The sealing ring 302 is fixedly arranged at the bottom end of the cover plate 2, and the sealing ring 302 is extruded and embedded in the inner cavity of the sealing groove 301. The sealing ring 302 is either elastic rubber or elastic silicone. The extrusion and embedding of the sealing ring 302 and the sealing groove 301 are used for sealing the inner cavity of the package body 1. The sealing structure 3 also includes an exhaust hole 303 and an exhaust pipe 304. The exhaust hole 303 is opened at the top of the cover plate 2, and the exhaust pipe 304 is fixedly arranged in the inner cavity of the exhaust hole 303.

[0030] Finally, if Figure 1 and Figure 2 and Figure 3As shown in , the sealing ring 302 and the inner cavity of the sealing groove 301 are squeezed and embedded. The sealing ring 302 is squeezed toward the inner cavity of the sealing groove 301 as the cover plate 2 is connected to the sheath body 1 until the cover plate 2 can no longer move toward the sheath body 1. At this time, the sealing ring 302 is completely embedded in the inner cavity of the sealing groove 301. The sealing ring 302 uses its own elastic sealing to ensure the sealing effect after the cover plate 2 is connected to the sheath body 1. At the same time, the interlaced connection between the sealing ring 302 and the sealing groove 301 provides a guide for the connection between the cover plate 2 and the sheath body 1, avoids the position deviation of the connection between the cover plate 2 and the sheath body 1, and improves the accuracy and efficiency of the connection between the cover plate 2 and the sheath body 1. The exhaust pipe 304 is installed in the exhaust hole 303 to extract the gas in the inner cavity of the sheath body 1, thereby providing a vacuum environment for the inner cavity of the sheath body 1.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot isostatic pressing die sleeve structure, comprising a sleeve body (1) and a cover plate (2) embedded at the top of the sleeve body (1), characterized in that: A fixing structure (4) is provided between the package body (1) and the cover plate (2), and the fixing structure (4) comprises: A first fixing plate (401), the first fixing plate (401) being semi-annularly fixedly disposed on the outer walls of the sheath body (1) and the cover plate (2); A second fixing plate (402), the second fixing plate (402) being fixedly arranged at an end of the first fixing plate (401) and being located on the outer walls of the package body (1) and the cover plate (2), the second fixing plate (402) being fixed to the first fixing plate (401) to limit the position of the cover plate (2) on the package body (1).

2. A hot isostatic pressing mold jacket structure according to claim 1, characterized in that: The fixing structure (4) further comprises: a plurality of first connection blocks (403), the plurality of first connection blocks (403) being respectively fixedly arranged on opposite end surfaces of the first fixing plate (401) and the second fixing plate (402), the first connection blocks (403) being used to limit the positions of the first fixing plate (401) and the second fixing plate (402) on the package body (1) and the cover plate (2); A plurality of second connection blocks (404), wherein the plurality of second connection blocks (404) are symmetrically fixedly arranged on opposite end surfaces of the first fixing plate (401) and the second fixing plate (402); A plurality of connection grooves (405) are respectively provided on the outer walls of the package body (1) and the cover plate (2); the connection grooves (405) are used to provide installation space for the first connection block (403) and the second connection block (404).

3. The hot isostatic pressing mold jacket structure according to claim 1, characterized in that: A sealing structure (3) is provided between the package body (1) and the cover plate (2), and the sealing structure (3) comprises: A sealing groove (301), the sealing groove (301) being disposed at the top end of the sheath body (1), the sealing groove (301) being in the shape of a circular ring; A sealing ring (302) is fixedly arranged at the bottom end of the cover plate (2), and the sealing ring (302) is extruded and engaged with the inner cavity of the sealing groove (301).

4. The hot isostatic pressing mold jacket structure according to claim 3, characterized in that: The sealing structure (3) further comprises an air extraction hole (303) and an air extraction pipe (304); the air extraction hole (303) is opened at the top end of the cover plate (2); and the air extraction pipe (304) is fixedly arranged in the inner cavity of the air extraction hole (303).

5. The hot isostatic pressing mold jacket structure according to claim 2, characterized in that: The second connection block (404) is triangular in shape, and the inner cavity shape of the connection groove (405) through which the second connection block (404) is inserted and connected is consistent with the shape of the second connection block (404).

6. The hot isostatic pressing mold jacket structure according to claim 3, characterized in that: The sealing ring (302) is any one of elastic rubber and elastic silicone, and the sealing ring (302) and the sealing groove (301) are extruded and embedded to seal the inner cavity of the sheath body (1).

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