CN216080981U

CN216080981U - Sintering jig

Info

Publication number: CN216080981U
Application number: CN202122725874.1U
Authority: CN
Inventors: 周浪; 缪龙
Original assignee: Suzhou Yu'anjun Precision Technology Co ltd
Current assignee: Suzhou Yu'anjun Precision Technology Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-18
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a sintering jig, which comprises a sintered product and a jig body, a jig body is arranged on one side of the sintered product, the jig body is divided into an upper half and a lower half, and the jig body is divided into an upper half and a lower half. The lower half of the fixture body is provided with steps, the periphery of the fixture body is provided with edging, the upper half of the fixture body is provided with a first through groove, and the lower half of the fixture body is provided with a first through groove. Two-way slot. The sintering jig is sintered by placing the sintered product on the sintering jig and then placing the whole plate on the sintering jig. The material of the jig and the product is the same, and the sintering can shrink simultaneously, which avoids the product being placed directly on the ceramic setter plate, and the shrinkage is affected by the shrinkage. Under the influence of gravity in the vertical direction, the friction between the product and the ceramic setter will affect the shrinkage rate of the product, thereby affecting the size and deformation of the product, reducing the sintered size of the product and the influence of deformation factors, reducing the later shaping workload and NC machining workload, Improve product yield and production efficiency.

Description

Sintering jig

Technical Field

The utility model relates to the technical field of sintering jigs, in particular to a sintering jig.

Background

The sintering process is a process of placing products or materials on a jig and using professional sintering equipment to bond the products or the materials into blocks. The product obtained by sintering has strong hardness and higher integrity. Sintering jigs used by many manufacturers are sintered by adopting ceramic burning bearing plates, so that the jig has short service life and high replacement cost; because supporting points and supporting pieces need to be added, the tool and the product can not synchronously contract in the sintering process, and the supporting columns need to be cut off after sintering, so that the shaping workload of the product is large; meanwhile, the jig is simple in manufacturing process, sintering quality cannot be guaranteed, and yield of sintered products is affected.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a sintering fixture, so as to solve the problems of short service life and high replacement cost of the fixture in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a sintering jig, includes sintered product and tool body, one side of sintered product is provided with the tool body, the tool body divide into first and lower half, the lower half of tool body is provided with the step, be provided with the edging around the tool body, first logical groove is provided with in the first of tool body, the lower half of tool body is provided with the second and leads to the groove.

Preferably, the step of the jig body is internally provided with a positioning hole, and the positioning hole is matched with the shape of the sintered product.

Preferably, the four corners of the jig body are rounded, and the steps and the jig body are integrally formed in a die-casting mode.

Preferably, the area of the first through groove is larger than that of the second through groove, and the second through groove is arranged at the transition position of the slope surface and the plane of the step.

Preferably, the top of the other end of the jig body is provided with an upper notch, the bottom of the other end of the jig body is provided with a lower notch, and the size of the upper notch is larger than that of the lower notch.

Preferably, the edge of the other end of the jig body is provided with a thickened covered edge, and the inside of the other end of the jig body is provided with a bottom edge.

Compared with the prior art, the utility model has the beneficial effects that: the sintering jig has the advantages that the service life is longer, the recycling is convenient, the process cost of frequently replacing the jig is reduced, the synchronous shrinkage of the jig and a product in a sintering process is realized, the sintering flow is optimized, the quality of the jig is better, and the yield is higher;

(1) by arranging the jig body, in the sintering process of the special-shaped sintered product, if the ceramic burning bearing plate is used for sintering, the sintering process has large deformation, a large amount of shaping work is required after sintering is finished, the finishing process cost such as polishing and grinding is additionally increased, the jig body formed by injection is adopted for sintering, the jig body is consistent with the powder metallurgy material formed by injection of the product, the jig body can be synchronously shrunk with the product on the premise of ensuring the mechanical strength, additional shaping is not required, and the later shaping and machining workload is reduced;

(2) the jig is provided with the steps, the jig body is divided into the upper half part and the lower half part, the steps are arranged on the lower half part of the jig body, the steps, the positioning holes and the whole shape of the jig body are matched with a sintered product, when the sintered product is placed on the jig body, the steps are used as supporting surfaces and play a role of supporting the bottom, the jig and the product can be synchronously contracted in a sintering process, green blank injection can be carried out without adding supporting columns, the hardness of the sintered product reaches the stainless steel grade, the supporting columns are not required to be manually cut short, removal is more convenient, the generation of product bonding lines is reduced, and the sintering flow is optimized;

(3) through being provided with the breach, lower breach, the base, the thickening is bordured, first logical groove and second lead to the groove, the last breach and the lower breach of tool body are used for the air current to pass through, the tool body other end is uneven solid, but improve structural strength through the base, material cost is reduced, first logical groove and second lead to the groove and cooperate with sintering product shape, processing is simple, the thickening of the tool body other end is bordured and can be improved support intensity, edging and four corners fillet technology all around, reduce collision damage, the tool quality is better, the yield is higher.

Drawings

FIG. 1 is a schematic front left perspective view of the present invention;

FIG. 2 is a schematic front view of a right perspective structure of the present invention;

FIG. 3 is a schematic rear perspective view of the present invention;

FIG. 4 is a schematic rear view of a jig body according to the present invention;

FIG. 5 is a schematic top perspective view of the present invention;

FIG. 6 is a bottom left perspective view of the present invention;

FIG. 7 is a bottom right perspective view of the present invention;

FIG. 8 is a left side view of the present invention;

FIG. 9 is a right side view of the present invention;

fig. 10 is a bottom view of the present invention.

In the figure: 1. sintering the product; 2. a jig body; 3. an upper notch; 4. edging; 5. a step; 6. a first through groove; 7. a lower notch; 8. a bottom edge; 9. a second through groove; 10. thickening the edge; 11. and (7) positioning the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-10, a sintering jig comprises a sintered product 1 and a jig body 2, wherein one side of the sintered product 1 is provided with the jig body 2, the jig body 2 is divided into an upper half and a lower half, the lower half of the jig body 2 is provided with a step 5, the periphery of the jig body 2 is provided with an edge 4, the upper half of the jig body 2 is provided with a first through groove 6, and the lower half of the jig body 2 is provided with a second through groove 9;

specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, in the sintering process of the special-shaped sintered product 1, if a ceramic setter plate is used for sintering, the deformation of the sintering process is large, a large amount of shaping work is required after sintering is completed, the cost of finishing processes such as polishing and grinding is additionally increased, the injection-molded jig body 2 is used for sintering, the jig body 2 is made of a powder metallurgy material which is consistent with the injection-molded product, and the jig body can be synchronously shrunk with the product on the premise of ensuring the mechanical strength without additional shaping, so that the workload of post-shaping and machining is reduced.

Example 2: a positioning hole 11 is formed in the step 5 of the jig body 2, the positioning hole 11 is matched with the sintered product 1 in shape, a thickened covered edge 10 is arranged at the edge of the other end of the jig body 2, and a bottom edge 8 is formed in the other end of the jig body 2;

specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the jig body 2 is divided into an upper half and a lower half, the lower half of the jig body 2 is provided with a step 5, the positioning hole 11 and the overall shape of the jig body 2 are matched with the sintered product 1, when the sintered product 1 is placed on the jig body 2, the step 5 serves as a supporting surface to support the bottom, the jig and the product are shrunk in a sintering process synchronously, green body injection can be performed without adding a supporting column, the hardness of the sintered product reaches a stainless steel grade, the supporting column does not need to be manually cut short, removal is more convenient, the generation of product bonding lines is reduced, and the sintering process is optimized.

Example 3: four corners of the jig body 2 are rounded corner processes, the step 5 and the jig body 2 are integrally formed by die-casting, the area of the first through groove 6 is larger than that of the second through groove 9, the second through groove 9 is arranged at the transition position between the slope surface and the plane of the step 5, the top of the other end of the jig body 2 is provided with an upper notch 3, the bottom of the other end of the jig body 2 is provided with a lower notch 7, and the size of the upper notch 3 is larger than that of the lower notch 7;

specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, last breach 3 and lower breach 7 of tool body 2 are used for the air current to pass through, the 2 other ends of tool body are uneven solid, but improve structural strength through base 8, the material cost is reduced, first logical groove 6 and second logical groove 9 cooperate with 1 shape of sintered product, processing is simple, the thickening of the 2 other ends of tool body is bordured 10 and can be improved and support intensity, edging 4 and four corners fillet technology all around, reduce collision damage, the tool quality is better, the yield is higher.

The working principle is as follows: when the injection molding jig is used, the injection molding jig body 2 is adopted for sintering, the jig body 2 is consistent with a powder metallurgy material injection molded by a product, the injection molding jig can synchronously shrink with the product without additional shaping on the premise of ensuring the mechanical strength, the later shaping and machining workload are reduced, the jig body 2 is divided into an upper half part and a lower half part, the lower half part of the jig body 2 is provided with the step 5, the positioning hole 11 and the overall shape of the jig body 2 are matched with that of a sintered product 1, when the sintered product 1 is placed on the jig body 2, the step 5 serves as a supporting surface to play a role of supporting the bottom, the jig and the product synchronously shrink in a sintering process, green body injection can be carried out without adding a supporting column, the hardness of the sintered product reaches a stainless steel grade, the supporting column does not need to be manually cut short, the removal is more convenient, and the generation of a product binding line is reduced, the sintering flow has been optimized, the last breach 3 and the lower breach 7 of tool body 2 are used for the air current to pass through, the 2 other ends of tool body are uneven solid, but improve structural strength through base 8, the material cost is reduced, the logical groove 9 of first logical groove 6 and second cooperatees with 1 shape of sintering product, the processing is simple, the thickening of the 2 other ends of tool body is bordured 10 and can be improved and is supported intensity, edging 4 and four corners fillet technology all around, reduce the collision damage, the tool quality is better, the yield is higher.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A sintering jig, comprising a sintered product (1) and a jig body (2), characterized in that: a jig body (2) is provided on one side of the sintered product (1), and the jig body (2) It is divided into an upper half and a lower half, the lower half of the fixture body (2) is provided with steps (5), and the periphery of the fixture body (2) is provided with edging (4), The upper half of the fixture body (2) is provided with a first through groove (6), and the lower half of the fixture body (2) is provided with a second through groove (9).

2 . The sintering jig according to claim 1 , wherein a positioning hole ( 11 ) is arranged inside the step ( 5 ) of the jig body ( 2 ), and the positioning hole ( 11 ) is connected to the sintering jig. 3 . Product (1) to match the shape.

3. A sintering jig according to claim 1, characterized in that: the four corners of the jig body (2) are all rounded, and the steps (5) and the jig body (2) are integrally die-cast forming.

4. A sintering jig according to claim 1, characterized in that: the area of the first through groove (6) is larger than that of the second through groove (9), and the second through groove (9) is arranged on a step (5) at the transition between the slope and the plane.

5. A sintering jig according to claim 1, characterized in that: the top of the other end of the jig body (2) is provided with an upper notch (3), and the other end of the jig body (2) is provided with an upper notch (3). The bottom end is provided with a lower notch (7), and the size of the upper notch (3) is larger than that of the lower notch (7).

6. A sintering jig according to claim 1, characterized in that: the edge of the other end of the jig body (2) is provided with a thickened edge (10), and the jig body (2) The inside of the other end is provided with a bottom edge (8).