Sintering jig

Abstract

The utility model discloses a sintering jig which is used for supporting a workpiece to be sintered, and the workpiece to be sintered comprises a long handle part and an annular part which are connected. Comprising a base and a supporting block, a first containing groove and a second containing groove which are connected are formed in the base, the supporting block comprises a limiting part and a supporting part, the supporting part abuts against the bottom face of the second containing groove, and the limiting part is arranged in the annular part. According to the sintering jig, the first containing groove is used for containing and limiting the long handle part of the to-be-sintered workpiece, the second containing groove is used for containing the annular part of the to-be-sintered workpiece, the limiting part of the supporting block is used for supporting the annular part of the to-be-sintered workpiece, and the deformation degree of the to-be-sintered workpiece after sintering is reduced; the shape and size precision of the to-be-sintered workpiece after sintering is improved, and the yield and stability of the whole workpiece manufacturing process are improved.

Description

Technical Field

[0001] This utility model relates to the field of sintering technology, and in particular to a sintering fixture. Background Technology

[0002] Sintering is the process of transforming powdered materials into a dense body, a traditional technology. This process has long been used to produce ceramics, powder metallurgy, refractories, and ultra-high temperature materials. Generally, after powder is shaped, the dense body obtained through sintering is a polycrystalline material, whose microstructure consists of crystals, glass, and pores.

[0003] Existing sintered workpieces include a large number of ring-shaped structural parts with long handles. The ring-shaped part of such structural parts will naturally shrink during the sintering process, and the long handle is also prone to bending and deformation, resulting in uncontrollable overall shape and size, which affects the yield and stability of the entire process. Therefore, it is necessary to design a sintering fixture to improve the shape and size accuracy of ring-shaped structural parts with long handles after sintering. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sintering fixture to improve the shape and dimensional accuracy of the ring-shaped structural component with a long handle after sintering.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a sintering fixture for supporting a workpiece to be sintered, the workpiece to be sintered including a connected long handle and an annular part; including a base and a support block, the base having a connected first receiving groove and a second receiving groove, the support block including a limiting part and a supporting part, the supporting part abutting against the bottom surface of the second receiving groove, and the limiting part being placed inside the annular part.

[0006] Furthermore, the first receiving groove is arc-shaped.

[0007] Furthermore, the side of the limiting portion away from the support block abuts against the inner wall of the second receiving groove.

[0008] Furthermore, the base is also provided with a clearance groove, which connects the first receiving groove and / or the second receiving groove.

[0009] Furthermore, the number of the air-avoidance slots is multiple.

[0010] Furthermore, the end of the clearance groove is connected to the outer wall surface of the base.

[0011] Furthermore, the end of the first receiving groove away from the second receiving groove is connected to the outer wall surface of the base.

[0012] Furthermore, the second receiving groove is connected to the outer wall surface of the base.

[0013] Furthermore, the base and / or the support block are made of ceramic material.

[0014] Furthermore, the base is provided with a limiting structure, which is connected to the support block.

[0015] The beneficial effects of this utility model are as follows: the first receiving groove of this sintering fixture is used to receive and limit the long handle of the workpiece to be sintered, the second receiving groove is used to receive the annular part of the workpiece to be sintered, and the limiting part of the support block is used to support the annular part of the workpiece to be sintered, thereby reducing the degree of deformation of the workpiece after sintering, improving the shape and dimensional accuracy of the workpiece after sintering, and improving the yield and stability of the entire workpiece manufacturing process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the working state of the sintering fixture according to Embodiment 1 of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the sintering fixture according to Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the base in the sintering fixture of Embodiment 1 of this utility model.

[0019] Label Explanation:

[0020] 1. Workpiece to be sintered; 11. Long handle; 12. Ring-shaped part;

[0021] 2. Base; 21. First receiving groove; 22. Second receiving groove; 23. Clearance groove;

[0022] 3. Support block; 31. Limiting part; 32. Supporting part. Detailed Implementation

[0023] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figures 1 to 3 A sintering fixture for supporting a workpiece 1 to be sintered, the workpiece 1 including a connected long handle portion 11 and an annular portion 12; including a base 2 and a support block 3, the base 2 having a connected first receiving groove 21 and a second receiving groove 22, the support block 3 including a limiting portion 31 and a supporting portion 32, the supporting portion 32 abutting against the bottom surface of the second receiving groove 22, and the limiting portion 31 being placed inside the annular portion 12.

[0025] As can be seen from the above description, the beneficial effects of this utility model are as follows: the first receiving groove 21 of this sintering fixture is used to receive and restrict the long handle 11 of the workpiece 1 to be sintered, the second receiving groove 22 is used to receive the annular part 12 of the workpiece 1 to be sintered, and the limiting part 31 of the support block 3 is used to support the annular part 12 of the workpiece 1 to be sintered, thereby reducing the degree of deformation of the workpiece 1 to be sintered after sintering, improving the shape and dimensional accuracy of the workpiece 1 to be sintered after sintering, and improving the yield and stability of the entire workpiece process.

[0026] Furthermore, the first receiving groove 21 is arc-shaped.

[0027] As can be seen from the above description, the first receiving groove 21 is used to define the shape of the arc-shaped long handle 11.

[0028] Furthermore, the side of the limiting part 31 away from the support block 3 abuts against the inner wall surface of the second receiving groove 22.

[0029] As can be seen from the above description, the limiting part 31 abutting against the inner wall of the second receiving groove 22 can more stably restrict the relative position of the support block 3 and the base 2, and ensure the shape accuracy of the annular part 12 of the workpiece 1 to be sintered after sintering.

[0030] Furthermore, the base 2 is also provided with a clearance groove 23, which is connected to the first receiving groove 21 and / or the second receiving groove 22.

[0031] As can be seen from the above description, the clearance groove 23 is used to avoid the protruding structure on the workpiece 1 to be sintered.

[0032] Furthermore, the number of the air-avoidance slots 23 is multiple.

[0033] As can be seen from the above description, the multiple clearance slots 23 can be used to avoid protruding structures at different parts of the workpiece 1 to be sintered.

[0034] Furthermore, the end of the clearance groove 23 is connected to the outer wall surface of the base 2.

[0035] As can be seen from the above description, the clearance groove 23 connecting to the outer wall of the base 2 is beneficial to improving the efficiency of the base 2 processing and forming.

[0036] Furthermore, the end of the first receiving groove 21 that is away from the second receiving groove 22 is connected to the outer wall surface of the base 2.

[0037] As can be seen from the above description, the first receiving groove 21 is connected to the outer wall of the base 2, which helps to improve the efficiency of the base 2 processing and forming.

[0038] Furthermore, the second receiving groove 22 is connected to the outer wall surface of the base 2.

[0039] As can be seen from the above description, the second receiving groove 22 is connected to the outer wall of the base 2, which helps to improve the efficiency of the base 2 processing and forming.

[0040] Furthermore, the base 2 and / or the support block 3 are made of ceramic material.

[0041] As can be seen from the above description, the base 2 and / or support block 3 are not easily deformed in high-temperature environments.

[0042] Furthermore, the base 2 is provided with a limiting structure, which is connected to the support block 3.

[0043] As can be seen from the above description, the limiting structure can further restrict the relative position of the support block 3 and the base 2, and ensure the shape accuracy of the annular part 12 of the workpiece 1 to be sintered after sintering.

[0044] Please refer to Figures 1 to 3 The first embodiment of this utility model is: a sintering fixture for supporting a workpiece 1 to be sintered, the workpiece 1 including a connected long handle portion 11 and an annular portion 12.

[0045] The sintering fixture includes a base 2 and a support block 3. The base 2 has a first receiving groove 21 and a second receiving groove 22 connected together. The support block 3 includes a limiting part 31 and a supporting part 32. The supporting part 32 abuts against the bottom surface of the second receiving groove 22, and the limiting part 31 is placed within the annular part 12. The first receiving groove 21 is used to receive and restrict the long handle 11 of the workpiece 1 to be sintered, the second receiving groove 22 is used to receive the annular part 12 of the workpiece 1 to be sintered, and the limiting part 31 of the support block 3 is used to support the annular part 12 of the workpiece 1 to be sintered. In this embodiment, both the first receiving groove 21 and the second receiving groove 22 are connected to the top surface of the base 2. The extending direction of the first receiving groove 21 is perpendicular to the extending direction of the second receiving groove 22, and one end of the first receiving groove 21 is connected to the middle of the second receiving groove 22. The limiting part 31 of the support block 3 is rectangular in shape and is used to restrict the rectangular annular part 12 with a hollow area. In other embodiments, it is also possible for the extension direction of the first receiving groove 21 to be not perpendicular to the extension direction of the second receiving groove 22.

[0046] In this embodiment, the first receiving groove 21 is arc-shaped, and the bottom surface of the first receiving groove 21 is an arc surface. The first receiving groove 21 is used to define the shape of the arc-shaped long handle portion 11. In other embodiments, it is also feasible for the first receiving groove 21 to be rectangular or other shapes.

[0047] The side of the limiting part 31 away from the support block 3 abuts against the inner wall of the second receiving groove 22. Specifically, the cross-section of the support block 3 is L-shaped, and the side of the limiting part 31 away from the support block 3 abuts against the side of the second receiving groove 22 near the first receiving groove 21.

[0048] The base 2 is also provided with a clearance groove 23, which connects to the first receiving groove 21 and / or the second receiving groove 22. Specifically, there are two clearance grooves 23, one of which is located on the bottom surface of the second receiving groove 22, and the other is located at the end of the first receiving groove 21 away from the second receiving groove 22. The clearance grooves 23 are used to avoid protruding structures on the workpiece 1 to be sintered. In other embodiments, the number of clearance grooves 23 may be one, three, or more.

[0049] To facilitate the processing of the clearance groove 23, the end of the clearance groove 23 is connected to the outer wall surface of the base 2.

[0050] To facilitate the processing of the first receiving groove 21 and to facilitate the placement and removal of the workpiece 1 to be sintered, the end of the first receiving groove 21 away from the second receiving groove 22 is connected to the outer wall of the base 2.

[0051] To facilitate the processing of the second receiving groove 22 and to facilitate the placement and removal of the workpiece 1 to be sintered, the second receiving groove 22 is connected to the outer wall of the base 2.

[0052] In this embodiment, both the base 2 and the support block 3 are made of ceramic material so that the base 2 and the support block 3 are not easily deformed in high-temperature environments.

[0053] In a preferred embodiment, the base 2 is provided with a limiting structure, which is connected to the support block 3. The limiting structure can be a slot that engages with a portion of the support block 3; or, the limiting structure can be a protrusion, with the support block 3 having a slot that engages with the limiting structure. It is easy to understand that the limiting structure further restricts the relative position of the support block 3 and the base 2, ensuring the shape accuracy of the annular portion 12 of the workpiece 1 after sintering.

[0054] In summary, the first receiving groove of the sintering fixture provided by this utility model is used to receive and restrict the long handle of the workpiece to be sintered, the second receiving groove is used to receive the annular part of the workpiece to be sintered, and the limiting part of the support block is used to support the annular part of the workpiece to be sintered, thereby reducing the degree of deformation of the workpiece after sintering, improving the shape and dimensional accuracy of the workpiece after sintering, and improving the yield and stability of the entire workpiece manufacturing process.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sintering fixture for supporting a workpiece to be sintered, the workpiece comprising a connected long handle portion and an annular portion; characterized in that: The device includes a base and a support block. The base has a first receiving groove and a second receiving groove connected to each other. The support block includes a limiting part and a supporting part. The supporting part abuts against the bottom surface of the second receiving groove, and the limiting part is placed inside the annular part.

2. The sintering fixture according to claim 1, characterized in that: The first receiving groove is arc-shaped.

3. The sintering fixture according to claim 1, characterized in that: The side of the limiting part away from the support block abuts against the inner wall of the second receiving groove.

4. The sintering fixture according to claim 1, characterized in that: The base is also provided with a clearance groove, which is connected to the first receiving groove and / or the second receiving groove.

5. The sintering fixture according to claim 4, characterized in that: The number of the air-proof slots is multiple.

6. The sintering fixture according to claim 4, characterized in that: The end of the clearance groove is connected to the outer wall of the base.

7. The sintering fixture according to claim 1, characterized in that: The end of the first receiving groove away from the second receiving groove is connected to the outer wall surface of the base.

8. The sintering fixture according to claim 1, characterized in that: The second receiving groove is connected to the outer wall surface of the base.

9. The sintering fixture according to claim 1, characterized in that: The base and / or the support block are made of ceramic.

10. The sintering fixture according to claim 1, characterized in that: The base is provided with a limiting structure, which is connected to the support block.

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