CN217912844U

CN217912844U - Hot-pressing sintering die for diamond scribing cutter

Info

Publication number: CN217912844U
Application number: CN202221796747.9U
Authority: CN
Inventors: 汤少坤; 黄雪榕; 刘庆峰; 陈明华; 陈拓; 宋卫涛; 韦含真
Original assignee: Fuzhou Skystone Diamond Tool Co Ltd
Current assignee: Fujian Tianshiyuan Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-29
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a hot pressing sintering mould for diamond scribing sword, include: the lower surface of the first upper die sleeve is an inclined surface, and a first upper through hole is formed between the upper surface and the lower surface of the first upper die sleeve; the upper surface of the first lower die sleeve is an inclined plane, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve; when the first upper die sleeve is placed on the upper surface of the first lower die sleeve through the lower surface of the first upper die sleeve, the first upper die sleeve and the first lower die sleeve form a cylinder, the cylinder is used for sleeving the annular diamond scribing cutter, and the first upper through hole and the first lower through hole form a containing hole for containing a die core; and the outer wall of the mold core is in contact with the accommodating hole when the mold core is placed in the accommodating hole. By the technical scheme, the thin and fragile diamond scribing knife can be completely stored after sintering and demolding, and the yield of products is greatly improved.

Description

Hot-pressing sintering die for diamond scribing cutter

Technical Field

The utility model relates to a diamond scribing knife processing equipment field especially relates to a hot pressing sintering mould for diamond scribing knife.

Background

The diamond scribing cutter belongs to a metal bonding agent series, has the special high cutting capacity of the metal bonding agent, and is added with diamond in the blade material, so that the service life of the blade is longer and more durable. The method is used for processing high-load and difficult-to-cut materials (such as crystal, deep groove processing and the like); the diamond scribing knife is mainly divided into three steps, namely cold pressing, reduction and sintering, and the diamond scribing knife needs to be placed into a hot pressing die for sintering into a sheet after reduction, and due to the physical characteristics of a metal bonding agent, an inner hole can shrink inwards after sintering and is tightly attached to a die core.

The mold core in the conventional hot-pressing sintering mold is integrated, the shape of the mold core is cylindrical, the annular diamond scribing knife is sleeved outside the mold core, the mold core is forcibly extruded by external force to be demolded when the mold is demolded, the diamond scribing knife is thin and crisp, the mode easily enables a product to be broken, even if the product is not broken, along with strong internal stress, the product is deformed, the requirements cannot be met, and the success rate is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the hot-pressing sintering die for the diamond scribing cutter needs to be provided, and the problem that a die core in a conventional hot-pressing sintering die is integrated, the shape of the die core is cylindrical, the annular diamond scribing cutter is sleeved outside the die core, the die core needs to be forcibly extruded by external force to be demoulded when the die is removed, and the diamond scribing cutter is thin and fragile, so that a product is easily broken by the mode is solved.

To achieve the above object, the present application provides a hot press sintering mold for a diamond dicing blade, comprising:

the lower surface of the first upper die sleeve is an inclined surface, and a first upper through hole is formed between the upper surface and the lower surface of the first upper die sleeve;

the upper surface of the first lower die sleeve is an inclined surface, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve;

when the first upper die sleeve is placed on the upper surface of the first lower die sleeve through the lower surface of the first upper die sleeve, the first upper die sleeve and the first lower die sleeve form a cylinder, the cylinder is used for sleeving the annular diamond scribing cutter, and the first upper through hole and the first lower through hole form a containing hole for containing a die core;

and when the mold core is placed in the accommodating hole, the outer wall of the mold core is in contact with the accommodating hole and is used for limiting the first upper mold sleeve and the first lower mold sleeve.

Further: the die comprises a first upper die sleeve and a first lower die sleeve, wherein a first upper through hole is formed between the upper surface and the lower surface of the first upper die sleeve, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve;

when the second upper die sleeve presses the annular diamond dicing blade on the upper surface of the second lower die sleeve through the lower surface thereof, the second upper through hole is located above the second lower through hole, and the cylinder is placed in the second upper through hole and the second lower through hole.

Further: the second upper die sleeve and the second lower die sleeve are both in the shape of a circular ring, and the size of the second upper die sleeve is the same as that of the second lower die sleeve.

Further, the method comprises the following steps: the size of the first upper die sleeve is the same as that of the first lower die sleeve.

Further: the die comprises a first die frame and a second die frame, wherein the first die frame and the second die frame are placed on the same horizontal plane, a first groove is formed in the surface, facing the second die frame, of the first die frame, and a second groove is formed in the surface, facing the first die frame, of the second die frame;

when the first die frame is attached to the second die frame, the first groove and the second groove form a containing groove for containing the second upper die sleeve and the second lower die sleeve, and the outer walls of the second upper die sleeve and the second lower die sleeve are both in contact with the containing groove.

Further: the mould frame comprises a sintering mould frame and is characterized by further comprising a sintering mould frame and a pressing device, wherein an accommodating port is formed between the upper surface and the lower surface of the sintering mould frame and used for accommodating a first mould frame and a second mould frame which are located on a horizontal plane, and the pressing device is arranged on the sintering mould frame and used for pressing the first mould frame and the second mould frame together.

Further, the method comprises the following steps: the pressing device comprises a bolt and a screw hole, the sintering mold frame is provided with the screw hole, the screw hole is arranged along the horizontal plane, one end of the screw hole is communicated with the accommodating port, the other end of the screw hole is communicated with the outer wall of the sintering mold frame, and the bolt is screwed into the screw hole to press the first mold frame and the second mold frame together.

Further: and each side of the sintering mold frame is provided with a screw hole, and each screw hole is provided with a bolt.

Further: the first die frame is provided with a first die frame, and the first die frame is provided with a first die frame; and/or:

the heat insulation block is arranged on the second die frame.

Further: the temperature insulation block is arranged between the first mold frame and the accommodating port; and/or: the temperature insulation block is arranged between the second mold frame and the accommodating port;

the pressing device is also used for pressing the heat insulation block, the first mold frame and the second mold frame together.

Different from the prior art, in the technical scheme, the first upper die sleeve and the first lower die sleeve are placed together to form a complete cylinder, the outer side of the cylinder is sleeved with the annular diamond scribing knife, the die core can better support the first upper die sleeve and the first lower die sleeve and prevent the first upper die sleeve and the first lower die sleeve from moving in the horizontal direction, after the diamond scribing knife is sintered, the die core is not in contact with the diamond scribing knife, the diamond scribing knife cannot be broken and deformed when the die core is taken, force is applied along the direction of the inclined plane, the first upper die sleeve and the first lower die sleeve can slide relatively and are separated from the scribing knife, and the die removing is completed. Therefore, the thin and fragile diamond scribing knife can be completely stored after sintering and demolding, and the yield of products is greatly improved.

Drawings

FIG. 1 is an exploded view of a hot-pressing sintering mold according to this embodiment;

FIG. 2 is a schematic structural view of a hot-pressing sintering mold in this embodiment;

FIG. 3 is a top view of the hot-pressing sintering mold in the present embodiment;

FIG. 4 isbase:Sub>A cross-sectional view A-A of FIG. 3;

fig. 5 is a structural side view of the hot-pressing sintering mold in this embodiment.

Description of reference numerals:

10. a first upper die sleeve;

20. a first lower die sleeve;

30. a mold core;

40. a second upper die sleeve;

50. a second lower die sleeve;

60. a first mold frame;

70. a second mold frame;

80. sintering the mold frame;

90. a pressing device;

91. a bolt; 92. a screw hole;

100. a thermal insulation block;

110. a diamond saw blade.

Detailed Description

To explain in detail the possible application scenarios, technical principles, and practical embodiments of the present application, and to achieve the objectives and effects thereof, the following detailed description is given with reference to the accompanying drawings. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.

Referring to fig. 1 to 5, the present embodiment provides a hot pressing sintering mold for a diamond scribing blade, including:

the lower surface of the first upper die sleeve 10 is an inclined surface, and a first upper through hole is formed between the upper surface and the lower surface of the first upper die sleeve 10;

the upper surface of the first lower die sleeve 20 is an inclined surface, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve 20;

when the first upper die sleeve 10 is placed on the upper surface of the first lower die sleeve 20 through the lower surface thereof, the first upper die sleeve 10 and the first lower die sleeve 20 form a cylinder, the cylinder is sleeved with the annular diamond scribing cutter 110, the first upper through hole and the first lower through hole form a containing hole for containing the die core 30, the first upper through hole and the first lower through hole are opposite to each other up and down and are communicated together;

and the mold core 30, when the mold core 30 is placed in the receiving hole, the outer wall thereof is in contact with the receiving hole for restraining the first upper mold sleeve 10 and the first lower mold sleeve 20.

It should be noted that, during assembly, the first upper die set 10 and the first lower die set 20 are placed up and down, and the first upper die set 10 and the first lower die set 20 are placed together to form a complete cylinder, and the outer side of the cylinder is sleeved with the ring-shaped diamond scribing cutter 110. The first upper die sleeve 10 and the first lower die sleeve 20 are supported and limited by the die core 30, the shape of the containing hole is matched with the shape of the die core 30, and the first upper die sleeve 10 and the first lower die sleeve 20 can be sleeved on the die core 30 to form a cylinder. The mold core 30 is arranged along the vertical direction, the lower surface (inclined surface) of the first upper mold sleeve 10 is inclined to the vertical direction, the upper surface (inclined surface) of the first lower mold sleeve 20 is also inclined to the vertical direction, and the mold core 30 can better support the first upper mold sleeve 10 and the first lower mold sleeve 20 and prevent the first upper mold sleeve 10 and the first lower mold sleeve 20 from moving in the horizontal direction.

Different from the prior art, among the above-mentioned technical scheme, first die sleeve and first die sleeve are placed together and are formed a complete cylinder, the outside cover of this cylinder is equipped with annular diamond scribing cutter, the mold core can support first die sleeve and first die sleeve better, prevent that the two from moving in the horizontal direction, after diamond scribing cutter sintering, the mold core does not contact with diamond scribing cutter, can not make diamond scribing cutter fracture and warp when getting the mold core, later along the direction application of force on inclined plane, can make first die sleeve and first die sleeve slide relatively, break away from with the scribing cutter, accomplish the form removal. Therefore, the thin and fragile diamond scribing knife can be completely stored after sintering and demolding, and the yield of products is greatly improved.

Referring to fig. 1, 2 and 3, according to an embodiment of the present application, the hot press sintering mold further includes a second upper mold 40 and a second lower mold 50, and the second upper mold 40 and the second lower mold 50 are placed up and down during assembly. The second upper and

lower cases

40 and 50 are used to clamp the ring-shaped diamond saw blade 110. A second upper through hole is provided between the upper surface and the lower surface of the second upper die case 40, and a second lower through hole is provided between the upper surface and the lower surface of the second lower die case 50. When the second upper die case 40 presses the ring-shaped diamond dicing blade 110 against the upper surface of the second lower die case 50 through the lower surface thereof, the cylinder is placed in the second upper through-hole and the second lower through-hole.

Referring to fig. 1 and 2, according to an embodiment of the present application, the second upper die set 40 and the second lower die set 50 are both in the shape of a circular ring, the size of the second upper die set 40 is the same as that of the second lower die set 50, and when assembled, the second upper die set 40 and the second lower die set 50 are placed up and down, that is, the projection of the second upper die set 40 and the projection of the second lower die set 50 are overlapped, and the direction of the projection is parallel to the vertical direction. Therefore, the second upper die sleeve 40 and the second lower die sleeve 50 can be replaced for use, and the production cost and the maintenance cost are reduced.

In some embodiments, the size of the second upper mold 40 is different from the size of the second lower mold 50, and the first upper mold 10 and the first lower mold 20 can be taken and placed from/in the second upper/lower through hole without affecting the taking and placing of the ring-shaped diamond saw blade 110.

Referring to fig. 1 and 2, according to an embodiment of the present application, the size of the first upper die case 10 is the same as that of the first lower die case 20, and the receiving hole is also in the shape of a cylinder, and when the first upper die case 10 is placed on the upper surface (inclined surface) of the first lower die case 20 through the lower surface (inclined surface) thereof, the first upper die case 10 and the first lower die case 20 are symmetrical about the inclined surface. Therefore, the first upper die sleeve 10 and the first lower die sleeve 20 can be replaced for use, and the production cost and the maintenance cost are reduced.

Referring to fig. 1 to 4, according to an embodiment of the present disclosure, the hot pressing sintering mold further includes a first mold frame 60 and a second mold frame 70, when in use, the first mold frame 60 and the second mold frame 70 are placed on the same horizontal plane, a first groove is disposed on a surface of the first mold frame 60 facing the second mold frame 70, a second groove is disposed on a surface of the second mold frame 70 facing the first mold frame 60, when the first mold frame 60 and the second mold frame 70 are attached to each other in the upper direction of the horizontal plane, the first groove and the second groove form a receiving groove for receiving the second upper mold sleeve 40 and the second lower mold sleeve 50, and outer walls of the second upper mold sleeve 40 and the second lower mold sleeve 50 are in contact with the receiving groove. The shape of the receiving groove is matched with the shape of the second upper die sleeve 40, so that the second upper die sleeve 40 can be placed into the receiving groove, and the receiving groove surrounds the outer wall of the second upper die sleeve 40 for a circle. The shape of the receiving groove is matched with the shape of the second lower die sleeve 50, so that the second lower die sleeve 50 can be placed into the receiving groove, the receiving groove surrounds the outer wall of the second lower die sleeve 50 for a circle, and the second lower die sleeve 50 is located below the second upper die sleeve 40. Thus, a space for accommodating the diamond scribing cutter 110 is formed among the accommodating groove, the second upper die sleeve 40, the second lower die sleeve 50 and the cylinder, and the diamond scribing cutter 110 can be sintered.

Referring to fig. 1 to 3, according to an embodiment of the present application, the mold frame is divided into a first mold frame 60 and a second mold frame 70, and the first mold frame 60 and the second mold frame 70 are designed to facilitate the removal and placement of the diamond saw blade 110. The first mold frame 60 and the second mold frame 70 are assembled together to have a shape of an outer square and an inner circle, which is advantageous for placing the thermal insulation block 100 on the outer side thereof and the second upper mold 40, the second lower mold 50 and the cylinder on the inner side thereof.

Referring to fig. 1 to 3, according to an embodiment of the present application, the hot pressing sintering mold further includes a sintering mold frame 80 and a pressing device 90. Between the upper and lower surfaces of the sintering mold 80, receiving ports are provided for receiving the first mold 60 and the second mold 70 in a horizontal plane. The pressing device 90 is disposed on the sintering mold frame 80 and is used for pressing the first mold frame 60 and the second mold frame 70 together, so as to prevent the first mold frame 60 and the second mold frame 70 from moving and causing the size of the diamond saw blade 110 to change in the sintering process.

Referring to fig. 1 to 4, according to an embodiment of the present application, the pressing device 90 includes a bolt 91 and a screw hole 92, and the bolt 91 is screwed into the screw hole 92, which is a structure that is easy to disassemble. The sintering mold frame 80 is provided with a screw hole 92, one end of the screw hole 92, which is arranged along the horizontal plane, is communicated with the accommodating port, the other end of the screw hole 92 is communicated with the outer wall of the sintering mold frame 80, and the bolt 91 is used for screwing into the screw hole 92 to press the first mold frame 60 and the second mold frame 70 together, at this time, the first mold frame 60 and the second mold frame 70 are positioned in the accommodating port. Preferably, the sintering mold frame 80 has a square outer shape and a square outer wall, and the receiving opening is cylindrical. It should be noted that the number of the bolts 91 may be 1, and the tail of 1 bolt 91 presses the first mold frame 60 against the second mold frame 70, while the second mold frame 70 is pressed against the wall of the receiving opening; the number of the bolts 91 may be plural, and 2 are taken as an example, 2 screw holes 92 may be provided on opposite sides of the sintering mold frame 80, one bolt 91 is screwed from one screw hole 92, and its tail portion gradually moves from the first mold frame 60 toward the second mold frame 70 to press the first mold frame 60, and the other bolt 91 is screwed from the other screw hole 92, and its tail portion gradually moves from the second mold frame 70 toward the first mold frame 60 to press the second mold frame 70, so that the first mold frame 60 and the second mold frame 70 are pressed, and the second upper mold sleeve 40, the second lower mold sleeve 50, the first upper mold sleeve 10, the first lower mold sleeve 20 and the mold core 30 therebetween are also fixed.

Preferably, each side of the sintering mold frame 80 is provided with a screw hole 92, so that the first mold frame 60 and the second mold frame 70 are pressed tightly by a plurality of bolts 91 from multiple directions, thereby ensuring the yield of the finished product. Taking the sintering mold frame 80 as an example with an outer square and an inner circle, the four sides of the sintering mold frame 80 are respectively provided with a screw hole 92, and each screw hole 92 is provided with a bolt 91.

In some embodiments, the sintering mold frame 80 is provided with screw holes 92 at two adjacent sides, and each screw hole 92 is provided with a bolt 91, as shown in fig. 1 to 3.

According to an embodiment of the present application, in order to avoid scalding during mold removal, the hot-pressing sintering mold further includes a thermal insulation block 100, the thermal insulation block 100 is disposed on the first mold frame 60, where the thermal insulation block 100 may be fixed on the first mold frame 60 or may be placed on the first mold frame 60; and/or: the thermal insulation block 100 is disposed on the second mold frame 70, where the thermal insulation block 100 may be fixed on the second mold frame 70 or may be placed on the second mold frame 70. It should be noted that the temperature insulating block 100 may be provided on the first mold frame 60, or the temperature insulating block 100 may be provided on the first mold frame 60 and the second mold frame 70, or the temperature insulating block 100 may be provided on the second mold frame 70. Therefore, the heat insulation block 100 is beneficial to isolating the heat temperature of the sintering machine, the safety coefficient is higher during the mold removal, and the occurrence of events such as scalding is avoided.

Referring to fig. 1 to 3, according to an embodiment of the present application, a thermal insulation block 100 is disposed between the first mold frame 60 and the receiving opening; and/or: the heat insulation block 100 is arranged between the second mold frame 70 and the accommodating port; the pressing device 90 is also used for pressing the temperature insulation block 100, the first mold frame 60 and the second mold frame 70 together. Therefore, the heat insulation block 100 is beneficial to isolating the heat temperature of the sintering machine, the safety coefficient is higher during the mold removal, and the occurrence of events such as scalding is avoided.

Referring to fig. 5, the thickness of the first mold frame 60 and the second mold frame 70 is greater than the thickness of the sintering mold frame 80, the thickness of the first mold frame 60 is the distance between the upper surface and the lower surface thereof, the thickness of the second mold frame 70 is the distance between the upper surface and the lower surface thereof, and the thickness of the sintering mold frame 80 is the distance between the upper surface and the lower surface thereof, so that the mold release is facilitated.

The working principle of the hot-pressing sintering die is explained here:

1. the first upper die sleeve and the first lower die sleeve are assembled to be a complete cylinder, and the middle die core is used for limiting and supporting, so that the first upper die sleeve can be unscrewed conveniently, and the complete diamond scribing knife can be taken out conveniently. When the mold is disassembled, the mold core is taken out, the first upper mold sleeve and the first lower mold sleeve are not supported by the mold core, force is applied to the diagonal line of the small mold sleeve, the first upper mold sleeve and the first lower mold sleeve can slide and are separated from the scribing cutter, and the mold is disassembled. The mold core is not contacted with the diamond scribing cutter, and the diamond scribing cutter is not broken and deformed when the mold core is taken.

2. The die frame is divided into two parts, namely a first die frame and a second die frame, and the design of the first die frame and the second die frame is beneficial to taking out and placing the diamond scribing knife. The first die frame and the second die frame are assembled together and then are in the shape of an outer square and an inner circle, the outer side of the first die frame is favorable for placing a heat insulation block, and the inner side of the first die frame is provided with a second upper die sleeve, a second lower die sleeve and a cylinder.

3. The placement of the heat insulation block is beneficial to the isolation of the heat temperature of the sintering machine, the safety coefficient is higher during the mold removal, and scalding is avoided.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended to describe specific embodiments only and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, meaning that three relationships may exist, for example a and/or B, meaning: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Without further limitation, in this application, the use of the phrases "comprising," "including," "having," or other similar expressions, is intended to cover a non-exclusive inclusion, and these expressions do not exclude the presence of additional elements in a process, method, or article that includes the elements, such that a process, method, or article that includes a list of elements may include not only those elements defined, but other elements not expressly listed, or may include other elements inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are for convenience of description of the specific embodiments of the present application or for ease of understanding by the reader only, and do not indicate or imply that a device or component referred to must have a specific position, a specific orientation, or be configured or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be mechanical connection, electrical connection, and communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application belongs according to specific situations.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims

1. A hot pressing sintering mold for a diamond scribing knife, comprising:

the upper surface of the first lower die sleeve is an inclined plane, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve;

2. The hot pressing sintering mold according to claim 1, characterized in that: the die comprises a first upper die sleeve and a first lower die sleeve, wherein a first upper through hole is formed between the upper surface and the lower surface of the first upper die sleeve, and a first lower through hole is formed between the upper surface and the lower surface of the first lower die sleeve;

when the second upper die sleeve presses the annular diamond scribing knife on the upper surface of the second lower die sleeve through the lower surface of the second upper die sleeve, the second upper through hole is located above the second lower through hole, and the cylinder is placed in the second upper through hole and the second lower through hole.

3. The hot pressing sintering mold according to claim 2, characterized in that: the second upper die sleeve and the second lower die sleeve are both in the shape of a circular ring, and the size of the second upper die sleeve is the same as that of the second lower die sleeve.

4. The hot press sintering mold according to claim 1, 2 or 3, characterized in that: the size of the first upper die sleeve is the same as that of the first lower die sleeve.

5. The hot-pressing sintering mold according to claim 2 or 3, characterized in that: the die comprises a first die frame and a second die frame, wherein the first die frame and the second die frame are placed on the same horizontal plane, a first groove is formed in the surface, facing the second die frame, of the first die frame, and a second groove is formed in the surface, facing the first die frame, of the second die frame;

when the first die frame is attached to the second die frame, the first groove and the second groove form a containing groove for containing the second upper die sleeve and the second lower die sleeve, and the outer walls of the second upper die sleeve and the second lower die sleeve are in contact with the containing groove.

6. The hot pressing sintering mold according to claim 5, wherein: the mould frame comprises a sintering mould frame and is characterized by further comprising a sintering mould frame and a pressing device, wherein an accommodating port is formed between the upper surface and the lower surface of the sintering mould frame and used for accommodating a first mould frame and a second mould frame which are located on a horizontal plane, and the pressing device is arranged on the sintering mould frame and used for pressing the first mould frame and the second mould frame together.

7. The hot pressing sintering mold according to claim 6, wherein: the pressing device comprises a bolt and a screw hole, the sintering mold frame is provided with the screw hole, the screw hole is arranged along the horizontal plane, one end of the screw hole is communicated with the accommodating port, the other end of the screw hole is communicated with the outer wall of the sintering mold frame, and the bolt is screwed into the screw hole to press the first mold frame and the second mold frame together.

8. The hot pressing sintering mold according to claim 6, wherein: and each side of the sintering mold frame is provided with a screw hole, and each screw hole is provided with a bolt.

9. The hot-pressing sintering die according to claim 6, 7 or 8, characterized in that: the first die frame is provided with a first die frame, and the first die frame is provided with a first die frame; and/or:

the heat insulation block is arranged on the second die frame.

10. The hot pressing sintering die of claim 9, wherein: the temperature insulation block is arranged between the first mold frame and the accommodating port; and/or: the temperature insulation block is arranged between the second mold frame and the accommodating port;