A sintering tool for pressing slotted products

Abstract

The utility model relates to a kind of sintering tool parts of pressed slot-hole product, including multiple briquetting, multiple briquetting respectively corresponding multiple sintering slots on sintering piece, multiple briquetting are fixedly connected between, by setting sintering tool parts, sintering tool parts are composed of multiple mutually connected briquetting, multiple briquetting respectively with the sintering slot on sintering piece corresponding, briquetting is placed in sintering slot and upper surface is higher than sintering piece upper surface, when upper die and lower die mould sintering process, the chip in the sintering slot groove bottom on sintering piece can be realized by the briquetting of sintering tool parts to pressure sintering.

Description

Technical Field

[0001] This utility model belongs to the field of mold sintering tooling technology, specifically relating to a sintering tooling for pressing slotted products. Background Technology

[0002] The silver sintering process involves applying pressure and temperature to the product using a mold, causing the nano-silver particles to melt and sinter, thereby fixing the chip while providing excellent thermal and electrical conductivity. For the silver sintering process, the sintering mold is a crucial element. However, in the early stages of a project, when the product is not yet fully finalized, creating a dedicated mold is costly, and if the product changes, the mold may have to be scrapped. On the other hand, general-purpose molds, due to their simple structure, cannot meet the needs of all products, especially some special product designs. Therefore, some design improvements are made to the mold, optimizing the design based on the general-purpose mold to achieve the effect of a dedicated mold.

[0003] Conventional product design, such as Figure 1 As shown, the sintering position is protruding, so pressure sintering can be achieved using a flat plate design of a general mold. Figure 2 As shown, for the location of such a sintering groove in the product design shown in the figure, it is impossible to use a general mold for pressure sintering. In view of this, this solution was developed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a sintering tooling for pressing slotted products, wherein the lower surface of the pressing block can fit against the bottom wall of the sintering tank for pressure sintering.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sintering tooling for pressing slotted products, comprising multiple pressing blocks, each pressing block corresponding to a multiple sintering slot on the sintered part, and the multiple pressing blocks being fixedly connected to each other.

[0006] Furthermore, the sintering fixture also includes a positioning plate with multiple positioning holes, and the pressure block is located in the positioning holes and fixedly connected to the positioning plate.

[0007] Furthermore, the sintering fixture also includes a positioning plate, on which multiple positioning recesses are formed, and the pressure block is fixedly connected within the positioning recesses.

[0008] Furthermore, the pressure block and the positioning hole are connected by welding.

[0009] Furthermore, the pressure block and the positioning recess are connected by welding.

[0010] Furthermore, there is a gap between the positioning plate and the sintered part.

[0011] Furthermore, the pressure block and positioning plate are made of stainless steel.

[0012] Furthermore, the sintering fixture also includes a pad, which is located below the sintered part.

[0013] Furthermore, the distance between the upper surface of the pressure block and the lower surface of the pad block is 5.5 mm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention features a sintering fixture consisting of multiple interconnected pressure blocks, each corresponding to a sintering groove on the sintering component. The pressure blocks are placed inside the sintering groove with their upper surfaces higher than the upper surface of the sintering component. During the sintering process when the upper and lower molds are closed, the pressure blocks of the sintering fixture enable pressure sintering of the chips at the bottom of the sintering groove on the sintering component. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the sintering protrusion mentioned in the background section.

[0017] Figure 2 This is a cross-sectional structural diagram of a pre-existing slotted product.

[0018] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention;

[0019] Figure 4 This is a cross-sectional view of the positioning plate and pressure block in Embodiment 1 of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the positioning plate and pressure block in Embodiment 1 of this utility model;

[0021] Figure 6 This is a cross-sectional view of the positioning plate and pressure block in Embodiment 2 of this utility model;

[0022] Figure 7 This is a three-dimensional structural diagram of the positioning plate and pressure block in Embodiment 2 of this utility model.

[0023] The markings in the diagram are: 1. Positioning plate; 11. Positioning recess; 2. Pressing block; 3. Pad block; 4. Upper mold; 5. Lower mold; 6. Sintered part. Detailed Implementation

[0024] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0025] The sintered part mentioned in this solution has multiple sintering grooves on its surface. These grooves are arranged as needed, and in most cases, they are distributed in a matrix. Chips are placed at the bottom of the sintering grooves, and the sintered part is located between the upper and lower molds.

[0026] Example 1

[0027] like Figures 3-5 As shown, this embodiment provides a sintering fixture for pressing slotted products, including a positioning plate 1, multiple pressing blocks 2, and pad blocks 3.

[0028] The positioning plate 1 has multiple positioning holes, and multiple pressing blocks 2 are located in the positioning holes and fixedly connected. Specifically, the pressing blocks 1 are connected to the positioning holes by welding. The positioning plate 1 and the pressing blocks 2 are made of stainless steel. The function of the positioning plate 1 is to pre-position the pressing blocks to facilitate subsequent sintering.

[0029] During sintering, the pressure block 2 is located in the sintering tank, and the lower surface of the pressure block 2 is in contact with the bottom of the sintering tank. Specifically, there is a gap between the positioning plate 1 and the sintered part 6 to ensure that the remaining areas that do not require pressure sintering are not compressed.

[0030] The pad 3 is located below the sintered part 6. The distance between the upper surface of the pressure block 2 and the lower surface of the pad 3 is 5.5mm. This setting is because the general mold setting value is 5.5mm, so that the sintering tooling of this solution is more compatible with the existing general mold in actual operation.

[0031] Example 2

[0032] like Figures 6-7 As shown, the difference between this embodiment and embodiment 1 is that multiple positioning recesses 11 are formed on the positioning plate 1, and the pressure block 2 is fixedly connected in the positioning recesses 11. The pressure block and the positioning recesses 11 are connected by welding. This is because if the positioning plate 1 is a positioning hole, it is necessary to weld around the pressure block 2 when welding it. However, by using the positioning recesses 11, the connection can be made by soldering or other methods.

[0033] In this embodiment, the distance between the upper surface of the pressure block and the lower surface of the pad block 3 is 5.5mm.

[0034] Preferably, the positioning plate 1 and the pressure block 2 are connected by screws, the upper surface of the screws is flat, the bottom of the positioning recess 11 is provided with a through hole, and the surface of the pressure block 2 is provided with a threaded hole. The screws are screwed into the threaded hole through the through hole to achieve fixation.

[0035] Preferably, the pressure block 2 and the positioning plate 1 can also be connected by a commonly used snap-fit ​​structure, such as a deformation snap-fit ​​structure, which will not be described in detail here.

[0036] In both embodiments of this solution, a sintering fixture is set up. The sintering fixture consists of multiple interconnected pressure blocks 2. The multiple pressure blocks 2 correspond to the sintering grooves on the sintering part 6. The pressure blocks 2 are placed in the sintering grooves and their upper surfaces are higher than the upper surfaces of the sintering part 6. During the sintering process when the upper mold 4 and the lower mold 5 are closed, the pressure blocks 2 of the sintering fixture can realize the pressure sintering of the chip in the bottom of the sintering groove on the sintering part 6.

[0037] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A sintering fixture for pressed slotted products, characterized in that: It includes multiple pressing blocks, each of which corresponds to a multiple sintering groove on the sintered part, and the multiple pressing blocks are fixedly connected to each other.

2. The sintering fixture for a pressed slotted product according to claim 1, characterized in that: The sintering fixture also includes a positioning plate with multiple positioning holes, and the pressure block is located in the positioning holes and fixedly connected to the positioning plate.

3. The sintering fixture for a pressed slotted product according to claim 1, characterized in that: The sintering fixture also includes a positioning plate, on which multiple positioning recesses are formed, and the pressure block is fixedly connected in the positioning recesses.

4. The sintering fixture for a pressed slotted product according to claim 2, characterized in that: The pressure block and the positioning hole are connected by welding.

5. A sintering fixture for a pressed slotted product according to claim 3, characterized in that: The pressure block and the positioning recess are connected by welding.

6. A sintering fixture for a pressed slotted product according to claim 2 or 3, characterized in that: There is a gap between the positioning plate and the sintered part.

7. A sintering fixture for a pressed slotted product according to claim 2 or 3, characterized in that: The pressure block and positioning plate are made of stainless steel.

8. A sintering fixture for a pressed slotted product according to claim 2 or 3, characterized in that: The sintering fixture also includes a pad block located below the sintering component.

9. A sintering fixture for a pressed slotted product according to claim 8, characterized in that: The distance between the upper surface of the pressure block and the lower surface of the pad block is 5.5 mm.

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