Hot pressing sintering transfer die

Abstract

The utility model belongs to the technical field of hot-pressing sintering furnaces, and particularly discloses a hot-pressing sintering transfer die which comprises a stamping head, a stamping driving part installed on the hot-pressing sintering furnace, a die sleeve and a transfer pressure head, the stamping head is connected with an output shaft of the stamping driving part, the transfer pressure head is detachably connected with the stamping head, and the stamping driving part is connected with the die sleeve. The die sleeve is provided with a counter bore matched with the switching pressure head, and the switching pressure head can stretch into the counter bore. The mold can be matched with mold sleeves with different shapes and sizes, repeated mold opening is avoided, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing sintering furnace technology, specifically to a transfer mold for hot pressing sintering. Background Technology

[0002] Hot pressing sintering is widely used in powder metallurgy processes. Hot pressing sintering is usually completed in a hot pressing sintering furnace. The main structures of the hot pressing sintering furnace include the heating section, the atmosphere and pressure section, the cylinder and the pressing section.

[0003] Its pressing part consists of molds and hydraulic presses. The molds include a press head and a mold sleeve. The press head is connected to the output shaft of the hydraulic press by threads, inserted into the furnace body through a through hole, and then through a through hole in the upper part of the heating chamber to cooperate with the matching mold sleeve to press the required product.

[0004] Because the shape and size of the press head and matching mold in a typical hot pressing sintering furnace are fixed, the shape and size of the pressed product are limited, making it impossible to meet the requirements of certain special cases. Customizing the entire set of molds would result in higher costs. Utility Model Content

[0005] This invention provides a hot-pressed sintering transfer mold, which aims to be compatible with mold sleeves of different shapes and sizes, avoiding repeated mold opening and reducing costs.

[0006] This utility model is achieved through the following technical solution: a hot pressing sintering transfer mold, including a punch head and a punching drive installed on a hot pressing sintering furnace, the punch head being connected to the output shaft of the punching drive, and also including a mold sleeve and a transfer head, the transfer head being detachably connected to the punch head, the mold sleeve having a countersunk hole matching the transfer head, the transfer head being able to extend into the countersunk hole.

[0007] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0008] In this solution, powder is loaded into the hole of the die sleeve, and then the stamping drive is activated, causing the adapter pressure head on the stamping head to extend into the countersunk hole of the matching die sleeve to press the powder into shape. Because this solution features a separately provided adapter pressure head, various models can be configured to correspond to the size of the sample to be pressed. The adapter pressure head is detachably connected to the original stamping head on the equipment. Therefore, when it is necessary to press samples of different sizes and shapes, it is only necessary to replace the die sleeve with one of the corresponding countersunk hole size and replace the stamping head with one that matches the countersunk hole size of the die sleeve to achieve the pressing of samples of different sizes and shapes.

[0009] The cost of opening a mold for a stamping head is relatively high. The adapter press head in this solution can be matched with mold sleeves of different shapes and sizes, while the stamping head can remain stationary in the hot pressing sintering furnace without the need for repeated mold opening. When using it, the adapter press head of the corresponding size can be selected according to the actual sample size to be pressed. This can solve the problem of preparing test samples of different shapes and sizes in small batches during the experiment, avoid repeated mold opening of the whole mold, and reduce the mold use cost.

[0010] Furthermore, it also includes an adapter block, which is detachably connected to the stamping head, and the adapter head is connected to the adapter block.

[0011] Beneficial effects: This solution also includes an adapter block, which is detachably connected to the stamping head. This allows for an indirect detachable connection between the adapter head and the stamping head. Typically, the stamping head has a larger diameter, while the adapter head has a smaller diameter. Direct connection between the adapter head and the stamping head is inconvenient. The adapter block in this solution makes it easier to connect the adapter head to the stamping head.

[0012] In this solution, it is only necessary to pre-make adapter heads of different sizes. In actual use, the appropriate adapter head is selected according to the countersunk hole size of the die sleeve, and then connected to the stamping head through the adapter block.

[0013] Furthermore, the adapter head is fixedly connected to the adapter block.

[0014] Beneficial effects: This solution discloses one of the connection methods between the adapter head and the adapter block. In this solution, the adapter head and the adapter block are fixed, and since the adapter block and the punch head are detachably connected, the adapter head can be replaced.

[0015] Furthermore, the adapter head is detachably connected to the adapter block.

[0016] Beneficial effects: This solution provides an alternative connection method between the adapter head and the adapter block. In this solution, the adapter block and the punch head are detachably connected, and the adapter head and the adapter block are also detachably connected. This makes it convenient to manufacture the adapter head and the adapter block separately and then assemble them into a whole.

[0017] Furthermore, the adapter block is threadedly connected to the stamping head.

[0018] Beneficial effects: The threaded connection between the adapter block and the stamping head in this solution is convenient for disassembly and assembly, and the connection is reliable.

[0019] Furthermore, it also includes an adapter block, which is fixedly connected to the stamping head, and the adapter head is detachably connected to the adapter block.

[0020] Beneficial effects: This solution provides another way to connect the adapter block and the stamping head. In this solution, the adapter block is connected to the stamping head, and the adapter head and the adapter block are detachably connected. This also achieves the purpose of detachably connecting the adapter head and the stamping head, thus facilitating the replacement of adapter heads of different sizes.

[0021] Furthermore, a connector is coaxially connected to the top of the adapter head, and the connector is detachably connected to the adapter block.

[0022] Beneficial effects: This solution achieves a detachable connection between the adapter head and the adapter block by setting a connector at the top of the adapter head and detachably connecting the connector to the adapter block. In practice, the dimensions of the part where the connector and the adapter block are connected can remain unchanged. Only the size of the adapter head needs to be changed to make it compatible with molds of different sizes and shapes. In this way, the adapter block can remain connected to the stamping head. When changing to different sizes of adapter heads, there is no need to disassemble and replace the adapter block, thereby further reducing costs.

[0023] Furthermore, a mold pad is placed inside the mold sleeve, and a pressure head pad is connected to the bottom of the adapter pressure head.

[0024] Beneficial effects: The mold sleeve pad and pressure head pad in this solution can improve the pressing and molding effect of materials.

[0025] Furthermore, the mold pad is composed of multiple overlapping pads.

[0026] Beneficial effects: The number of spacers in this solution can be adjusted according to the amount of material inside the mold, making it more practical.

[0027] Furthermore, the mold sleeve is a graphite mold sleeve, the adapter pressure head is a graphite adapter pressure head, and the stamping head is a graphite stamping head.

[0028] Beneficial effects: The graphite mold sleeve, graphite adapter head, and graphite stamping head in this solution are more suitable for use in hot pressing sintering processes. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a longitudinal cross-sectional view of an embodiment of a hot-pressing sintering transfer mold according to the present invention;

[0031] Figure 2 This is a longitudinal cross-sectional view of the transfer block in an embodiment of a hot-pressing sintering transfer mold of this utility model;

[0032] Figure 3 This is a schematic diagram of the connection between the stamping head, the transfer block, and the transfer pressure head in an embodiment of a hot-pressing sintering transfer mold according to this utility model.

[0033] The attached diagram shows the markings and corresponding component names:

[0034] Heating layer 1, insulation layer 2, stamping drive component 3, stamping head 4, adapter block 5, fixing hole 501, adapter hole 502, adapter press head 6, connector head 601, mold sleeve 7, press head pad 8, mold sleeve pad 9. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0036] Example 1

[0037] like Figure 1 As shown, this embodiment 1 provides a transfer mold for hot pressing sintering, including a stamping head 4 and a stamping drive 3 installed on a hot pressing sintering furnace. The stamping head 4 is connected to the output shaft of the stamping drive 3. In this embodiment, the stamping drive 3 is a hydraulic telescopic cylinder.

[0038] The hot pressing sintering transfer mold in this embodiment also includes a mold sleeve 7 and a transfer head 6. In this embodiment, the mold sleeve 7 is a graphite mold sleeve, the transfer head 6 is a graphite transfer head, and the stamping head 4 is a graphite stamping head. That is, the mold sleeve 7, the transfer head 6, and the stamping head 4 are all made of graphite material.

[0039] In this embodiment, a heating layer 1 and a heat insulation layer 2 are installed inside the hot pressing sintering furnace. The mold sleeve 7 and the adapter head 6 are located in the inner cavity of the heat insulation layer 2. The heat insulation layer 2 is located inside the heating layer 1. The output shaft of the stamping drive 3 passes through the heating layer 1 and is coaxially threaded to the top of the stamping head 4. The bottom end of the stamping head 4 passes into the interior of the heat insulation layer 2 and is connected and cooperated with the adapter head 6.

[0040] The adapter head 6 is detachably connected to the punch head 4. The die sleeve 7 has a countersunk hole that matches the adapter head 6, allowing the adapter head 6 to extend into the countersunk hole. The die sleeve 7 is cylindrical and hollow inside. The countersunk hole of the die sleeve 7 should have a certain depth to allow for clearance fit with the adapter head 6. The adapter head 6 should have a certain thickness based on the required dimensions to achieve the performance of bearing the pressing pressure. The length of the adapter head 6 should take into account the assembly requirements of the countersunk hole depth and should allow for sufficient pressing stroke, but should not be too long to avoid easy breakage under pressure. In practice, the dimensions of the adapter head 6 and the die sleeve 7 can be machined and manufactured according to actual needs.

[0041] In this embodiment, a hot-pressing sintering transfer mold further includes a transfer block 5, which is detachably connected to the punch head 4. A transfer head 6 is connected to the transfer block 5. Specifically: [The text abruptly ends here, likely due to an incomplete sentence or missing information.] Figure 2 As shown, the adapter block 5 is cylindrical, and a fixing hole 501 is provided at the top of the adapter block 5, and an adapter hole 502 is provided at the bottom of the adapter block 5. The fixing hole 501 of the adapter block 5 matches the size of the punch head 4. In this embodiment, the fixing hole 501 of the adapter block 5 is provided with an internal thread, and the outer side of the punch head 4 and the part below it are provided with an external thread. The adapter block 5 is threadedly connected to the punch head 4.

[0042] In this embodiment, the adapter head 6 is fixedly connected to the adapter block 5. The adapter hole 502 at the bottom of the adapter block 5 matches the size of the adapter head 6. One end of the adapter head 6 is coaxially inserted into the adapter hole 502 and welded to the adapter block 5 or integrally formed with the adapter block 5. This makes the adapter block 5 and the adapter head 6 form a whole. In practice, adapter heads 6 with different sizes and shapes can be pre-processed as needed. The adapter head 6 is detachably connected to the punch head 4 through the adapter block 5, which makes it easy to replace the adapter head 6 that matches the size of the countersunk hole of the die sleeve 7.

[0043] Example 2

[0044] The difference between this embodiment and embodiment 1 is that the adapter head 6 and the adapter block 5 are detachably connected. This embodiment provides another way for the adapter head 6 and the adapter block 5 to be connected and cooperated. In this embodiment, the diameter of the adapter hole 502 at the bottom of the adapter block 5 matches the diameter of the adapter head 6, and the adapter head 6 and the adapter hole 502 at the bottom of the adapter block 5 are threadedly connected.

[0045] In this embodiment, the threaded connection between the adapter head 6 and the adapter block 5 makes assembly easier and the manufacturing process simpler.

[0046] Example 3

[0047] Combination Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the adapter block 5 is fixedly connected to the punch head 4 in this embodiment, and the adapter head 6 is detachably connected to the adapter block 5. In this embodiment, the adapter block 5 and the punch head 4 can be connected by welding, screw connection, threaded connection, etc.

[0048] In this embodiment, a connector 601 is coaxially connected to the top of the adapter head 6. The connector 601 is detachably connected to the adapter block 5. Specifically, in this embodiment, the connector 601 is threadedly connected to the adapter hole 502 at the bottom of the adapter block 5. The connector 601 and the adapter head 6 are integrally formed. In practice, various sizes of adapter heads 6 can be prefabricated according to actual needs. Each size of adapter head 6 has a connector 601, and the size of the connector 601 at the top of each size of adapter head 6 is the same, so that the size of the connector 601 always matches the size of the adapter hole 502 at the bottom of the adapter block 5. Thus, when changing adapter heads 6 of different sizes, it is not necessary to disassemble the adapter block 5.

[0049] Furthermore, only one adapter block 5 needs to be manufactured to fit different sizes of adapter heads 6, which effectively saves costs and is easy to disassemble and assemble.

[0050] The detachable connection between the adapter head 6 and the adapter block 5 via the connector 601 in this embodiment is also applicable to the detachable connection between the adapter head 6 and the adapter block 5 in Embodiment 2, and will not be described again here.

[0051] Example 4

[0052] The difference between this embodiment and embodiment 1 is that: in this embodiment, a mold sleeve pad 9 is placed inside the mold sleeve 7, and a pressure head pad 8 is connected to the bottom of the adapter pressure head 6. Both the mold sleeve pad 9 and the pressure head pad 8 are graphite pads. In this embodiment, the pressure head pad 8 is bonded to the bottom of the adapter pressure head 6. The pressure head pad 8 can protect the adapter pressure head 6 and reduce the wear of the adapter pressure head 6.

[0053] In this embodiment, the mold sleeve pad 9 is composed of multiple overlapping pads. That is, the outer diameter of the graphite mold sleeve pad 9 should match the countersunk hole of the mold sleeve 7. The size of the graphite mold sleeve pad 9 should not be too large. It can be processed into multiple small-sized pads, which makes it convenient to make adaptive adjustments according to the amount of material inside the hole of the mold sleeve 7.

[0054] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transfer mold for hot pressing sintering, comprising a stamping head and a stamping drive component mounted on a hot pressing sintering furnace, wherein the stamping head is connected to the output shaft of the stamping drive component, characterized in that, It also includes a die sleeve and an adapter head, the adapter head being detachably connected to the punch head, the die sleeve having a countersunk hole matching the adapter head, the adapter head being able to extend into the countersunk hole.

2. The hot-pressing sintering transfer mold according to claim 1, characterized in that, It also includes an adapter block, which is detachably connected to the punch head, and the punch head is connected to the adapter block.

3. The hot-pressing sintering transfer mold according to claim 2, characterized in that, The adapter head is fixedly connected to the adapter block.

4. The hot-pressing sintering transfer mold according to claim 2, characterized in that, The adapter head is detachably connected to the adapter block.

5. A hot-pressing sintering transfer mold according to claim 2, characterized in that, The adapter block is threadedly connected to the stamping head.

6. The hot-pressing sintering transfer mold according to claim 1, characterized in that, It also includes an adapter block, which is fixedly connected to the punch head, and the punch head is detachably connected to the adapter block.

7. A hot-pressing sintering transfer mold according to claim 6, characterized in that, The top of the adapter head is coaxially connected to a connector, which is detachably connected to the adapter block.

8. A hot-pressing sintering transfer mold according to any one of claims 1-7, characterized in that, A mold pad is placed inside the mold sleeve, and a pressure head pad is connected to the bottom of the adapter pressure head.

9. A hot-pressing sintering transfer mold according to claim 8, characterized in that, The mold pad is composed of multiple overlapping pads.

10. A hot-pressing sintering transfer mold according to any one of claims 1-7, characterized in that, The mold sleeve is a graphite mold sleeve, the adapter pressure head is a graphite adapter pressure head, and the stamping head is a graphite stamping head.

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