CN213193618U

CN213193618U - Anvil device for cubic press

Info

Publication number: CN213193618U
Application number: CN202021248056.6U
Authority: CN
Inventors: 孙如芳; 邱丽花; 韩欣; 周云团; 骈小璇; 史春燕
Original assignee: Zhengzhou New Asia Superhard Material Composite Co ltd
Current assignee: Zhengzhou New Asia Superhard Material Composite Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-14
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a top hammer device for a cubic press, which comprises two top hammers with the same structure and four top hammers with the same structure, wherein one axis of the two top hammers is superposed and oppositely arranged, the four top hammers are uniformly distributed along the axis of the top hammer, and the top hammers on the same axis are oppositely arranged; the top hammer I comprises a quadrangular frustum pyramid body I and a pressure bearing face I arranged on the quadrangular frustum pyramid body I, the top hammer II comprises a quadrangular frustum pyramid body II and a pressure bearing face II with a special-shaped structure, a semi-closed cavity is defined when the top hammer II moves to a stop point, and the two top hammers I are sealed to form a synthetic cavity. The utility model discloses changed the structure that changes carbide top hammer and supporting leaf cured piece and solved the inconsistent problem of horizontal border pressure gradient in the synthetic process, the product border of synthesizing out warp for a short time, and product size precision is high, diamond layer thickness and internal stress distribution are even, the improvement of yield.

Description

Anvil device for cubic press

Technical Field

The utility model relates to a top hammer device for cubic apparatus press and leaf cured piece that is suitable for thereof belongs to superhard materials equipment field.

Background

The synthesis of composite superhard materials such as domestic polycrystalline diamond, diamond composite sheets and the like mostly adopts a hexahedral top press for synthesis, wherein the assembling structure is a regular hexahedral pyrophyllite assembling block, the inside of the pyrophyllite assembling block is of a cylindrical structure, the outside of the pyrophyllite assembling block is of a square structure, and the product shape is of a cylindrical or original sheet structure, in the high-temperature and high-pressure synthesis process, the regular hexahedral assembling block is extruded by 6 top hammers from outside to inside, namely, the top hammers, the bottom hammers, the front hammers, the rear hammers, the left hammers and the right hammers, because the thickness of the pyrophyllite layer of the assembling block from the outside to the inside is inconsistent, and the pyrophyllite layer is an easily-compressed sealing material, the transverse circumferential pressure gradient is different under the condition that six surfaces of the assembling block are subjected to the same pressure in the synthesis process, the periphery of the synthesized product is easy to deform, the size precision of the product is poor, and the larger the size of the resultant product, the greater this effect. The leaf wax block in the prior art mostly adopts the technical scheme disclosed in the utility model patent with the authorization publication number of CN208449264U and the invention name of pressurized type leaf wax stone assembling block for synthesis, so that the existing top hammer and the leaf wax block need to be improved to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a top hammer device for cubic press particularly realizes through following technical scheme:

the top hammer device for the cubic press comprises two top hammers I with the same structure and four top hammers II with the same structure, wherein one axis of the two top hammers is superposed and oppositely arranged, the four top hammers II are uniformly distributed along the axis of the top hammer I, and the top hammers on the same axis are oppositely arranged; the top hammer I comprises a quadrangular frustum pyramid body I and a pressure bearing face I arranged on the quadrangular frustum pyramid body I, the top hammer II comprises a quadrangular frustum pyramid body II and a pressure bearing face II with a special-shaped structure, a semi-closed cavity is defined when the top hammer II moves to a stop point, and the two top hammers I are sealed to form a synthetic cavity.

Preferably, the second pressure bearing surface comprises a sealing table and an 1/4 cylindrical surface used for bearing the pyrophyllite assembly block, and the cylindrical surface is inwards recessed.

Preferably, the upper surface and the lower surface of the sealing platform correspond to the upper surface and the lower surface of the quadrangular frustum body II, the upper surface and the lower surface of the quadrangular frustum body II are connected, normal included angles are 45 degrees, and the other two surfaces of the quadrangular frustum body II and the two side surfaces of the sealing platform are respectively connected correspondingly and overlapped.

Preferably, the diameter of the 1/4 cylindrical surface is 30-300 mm.

Preferably, the first pressure bearing face is a square with the side length of 30-300 mm.

The utility model has the advantages that: the utility model discloses a top surface structure that changes the top hammer forms the circular column of equal size all around, and the inconsistent problem of horizontal border pressure gradient in the synthetic process has been solved to top hammer two, and the product border of synthesizing out is out of shape for a short time, and product size precision is high, diamond layer thickness and internal stress distribute evenly, have greatly improved the synthetic quality of diamond. And simultaneously, the utility model discloses promote the yield of synthetic product, the yield has improved 80% by original 60%. Other advantageous effects of the present invention will be further described with reference to the following embodiments.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural diagram of a top hammer I;

FIG. 4 is a schematic structural view of a second anvil;

in the figure: 1. carrying out top hammer I; 2. a second anvil; 3. a semi-enclosed cavity; 11. a quadrangular frustum pyramid I; 12. a first pressure bearing face; 21. a quadrangular frustum pyramid II; 22. a sealing table; 23. a cylindrical surface.

Detailed Description

As shown in figure 1, the anvil structure of the cubic press in the prior art forms an anvil I, and because the positions a and b are inconsistent, the pressure applied to the product when the product is synthesized is ensured to be uniform.

As shown in fig. 2-4: the top hammer device for the cubic press comprises two top hammers 1 with the same structure and four top hammers 2 with the same structure, wherein the axes of the two top hammers 1 are superposed and oppositely arranged, the four top hammers 2 are uniformly distributed along the axis of the top hammer 1, and the top hammers on the same axis are oppositely arranged; the anvil 1 comprises a quadrangular frustum pyramid body 11 and a first pressure bearing face 12 arranged on the quadrangular frustum pyramid body 11, the anvil 2 comprises a quadrangular frustum pyramid body two 21 and a second pressure bearing face with a special-shaped structure, the anvil 2 is enclosed into a semi-closed cavity 3 when moving to a stop point, and the anvil 1 seals the semi-closed cavity 3 to form a combined cavity. Preferably, the second pressure-bearing surface comprises a cylindrical surface 23 arranged on the sealing table 22 and 1/4 used for receiving the pyrophyllite assembly block, and the cylindrical surface 23 is recessed inwards. The utility model discloses a sealed platform 22 of two 2 hammers on top and the sealed of one 1 of top hammer from top to bottom have been realized rather than the sealed of remaining adjacent top hammer two 2 and the structure of two 21 of its four prismatic table bodies, change the top surface structure of current top hammer, form the cylinder of equal size all around, top hammer two 2 has solved the inconsistent problem of horizontal border pressure gradient in the synthesis process, the product border of synthesizing warp for a short time, product size precision is high, diamond layer thickness and internal stress distribution are even, the synthetic quality of diamond has greatly been improved.

As shown in fig. 3, on the basis of the above scheme, the

sealing platforms

22 and 1/4 of the second anvil 2 are preferably arranged according to the specific structure of the present invention, and the rest is not changed. The upper surface and the lower surface of the sealing platform 22 of the anvil II 2 are correspondingly connected with the upper surface and the lower surface of the quadrangular frustum body II 21, the normal included angles are 45 degrees, and the other two surfaces of the quadrangular frustum body II 21 are correspondingly connected with the two side surfaces of the sealing platform 22 respectively and are superposed. According to the utility model discloses a sealing platform 22 upper and lower extreme can with the tight laminating of top hammer 1, and other faces of sealing platform 22 of top hammer two 2 can with the tight laminating of its adjacent top hammer two 2, be favorable to forming effectual synthetic chamber. Secondly, each working surface of the second anvil 2 in the embodiment has reasonable structural design and simple manufacture, and is beneficial to reducing the manufacturing cost. The inventor researches and opens the device to find that the diameter of the 1/4 cylindrical surface 23 is 30-300mm, the diamond product has excellent quality, high dimensional precision and uniform diamond layer thickness and internal stress distribution. For example, diamond having a diameter of about 55mm is most effective. For this purpose, the first pressure-bearing face 12 is a square with a side length set to be 30-300 mm.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a top hammer device for cubic press, includes two top hammers one (1) that the structure is the same and four top hammers two (2) that the structure is the same, its characterized in that: the axes of the two top hammers I (1) are overlapped and arranged in opposite directions, the four top hammers II (2) are uniformly distributed along the axes of the top hammers I (1), and the top hammers on the same axis are arranged in opposite directions; the top hammer (1) comprises a quadrangular frustum pyramid body I and a pressure bearing face I (12) arranged on the quadrangular frustum pyramid body I (11), the top hammer (2) comprises a quadrangular frustum pyramid body II (21) and a pressure bearing face II with an irregular structure, the top hammer (2) is enclosed into a semi-closed cavity (3) when moving to a stop point, and the two top hammers (1) are sealed to form a combined cavity in the semi-closed cavity (3).

2. The anvil device for a cubic press as set forth in claim 1, wherein: the second pressure-bearing surface comprises a sealing platform (22) and 1/4 cylindrical surfaces (23) used for bearing the pyrophyllite assembly blocks, and the cylindrical surfaces (23) are inwards recessed.

3. The anvil device for a cubic press as set forth in claim 2, wherein: the upper surface and the lower surface of the sealing platform (22) correspond to the upper surface and the lower surface of the quadrangular frustum body II (21) in a bearing mode, normal included angles are 45 degrees, and the other two surfaces of the quadrangular frustum body II (21) correspond to the two side surfaces of the sealing platform (22) in a bearing mode and are overlapped.

4. The anvil device for a cubic press as set forth in claim 3, wherein: the diameter of the 1/4 cylindrical surface (23) is 30-300 mm.

5. The anvil device for a cubic press as set forth in claim 3, wherein: the first pressure bearing face (12) is a square with the side length of 30-300 mm.