CN216912099U - Degreasing and sintering ceramic jig for powder metallurgy product with double-wing structure - Google Patents

Abstract

The utility model discloses a degreasing sintering ceramic jig for a double-wing structure powder metallurgy product, which comprises a jig body made of a ceramic material, wherein the top surface of the jig body is a supporting plane, a first limiting block and a second limiting block are arranged on the top surface of the jig body, and the first limiting block and the second limiting block are arranged oppositely; the first limiting block and the second limiting block are both positioned between two wings of the double-wing structure product, and are respectively arranged at two ends of the two wings of the double-wing structure product; the first limiting block and the second limiting block are used for limiting the distance between the two wing end parts of the double-wing structure product. The jig is used for supporting and limiting the double-wing structure product, effectively prevents the contraction of the two wings from being inconsistent, and improves the product percent of pass.

Description

Degreasing and sintering ceramic jig for powder metallurgy product with double-wing structure

Technical Field

The utility model relates to a sintering jig, in particular to a degreasing sintering ceramic jig for a double-wing structure powder metallurgy product.

Background

Metal parts of complex shape are usually prepared by powder metallurgy, and the sintering process is a key process after the degreasing process. During sintering, the resin in the formed blank burns out metal powder to be melted and formed, the formed blank is softened, and defects such as deformation cracks and the like are generated if no effective support is provided.

As shown in fig. 1, the double-wing structure powder metallurgy product (hereinafter referred to as a double-wing structure product 20) is composed of two wings that are symmetrical left and right, a relatively regular space is formed between the two wings, and if there is no effective limit during sintering, the phenomenon of inconsistent shrinkage degree of the two wings is likely to occur in the blank of the double-wing structure product 20, which affects the product yield.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a degreasing sintered ceramic jig for a double-wing structure powder metallurgy product, which is used for supporting and limiting the double-wing structure product, effectively prevents the contraction inconsistency of the two wings and improves the product percent of pass.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a degreasing and sintering ceramic jig for a double-wing structure powder metallurgy product comprises a jig body made of a ceramic material, wherein the top surface of the jig body is a supporting plane, a first limiting block and a second limiting block are arranged on the top surface of the jig body, and the first limiting block and the second limiting block are arranged oppositely;

the first limiting block and the second limiting block are both positioned between two wings of the double-wing structure product, and are respectively arranged at two ends of the two wings of the double-wing structure product;

the first limiting block and the second limiting block are used for limiting the distance between the two wing end parts of the double-wing structure product.

Further, the first limiting block and the second limiting block are both cuboid;

the heights of the first limiting block and the second limiting block correspond to the wing heights of the double-wing structure product.

Further, the width of the first limiting block is 6-8mm, and the height of the first limiting block is 2 mm;

the width of the second limiting block is 4-5mm, and the height of the second limiting block is 2-16 mm.

Further, the first limiting block consists of a bottom limiting block and a top limiting block, and the width of the top limiting block is larger than that of the bottom limiting block, so that steps are formed between the side part of the bottom limiting block and the side part of the top limiting block;

the bottom of one end of the double-wing structure product is provided with a supporting sheet, and the supporting sheet is positioned at the step.

Further, the width of the bottom limiting block is 6-8mm, and the height of the bottom limiting block is 2 mm;

the width of the top limiting block is 10-11mm, and the height is 6-7 mm.

Furthermore, a first groove is formed in the top surface of the jig body, the shape of the first groove is matched with that of the first limiting block, and the bottom of the first limiting block is detachably arranged in the first groove.

Furthermore, a second groove is formed in the top surface of the jig body, the shape of the second groove is matched with that of the second limiting block, and the bottom of the second limiting block is detachably arranged in the second groove.

Furthermore, the first limiting block and the second limiting block form a group of limiting components;

the top surface of the jig body is provided with a plurality of groups of limiting members which are arranged in an array mode.

The embodiment of the utility model has the beneficial effects that:

this degreasing sintering ceramic tool's two stoppers can carry on spacingly to the both wings interval of two wing structure products to the phenomenon that the contained angle appears in the both wings that the shrink discordance of both wings caused when preventing the sintering, guarantee that product two wing structure is right and parallel to each other, improve from the product percent of pass.

Drawings

FIG. 1 is a schematic structural view of a powder metallurgy product with a double wing structure;

FIG. 2 is a schematic view of a degreased and sintered ceramic jig according to an embodiment of the present invention, cooperating with a product having a double-wing structure;

FIG. 3 is a schematic view of a limiting block of the degreased sintered ceramic jig according to an embodiment of the present invention cooperating with a jig body;

FIG. 4 is a schematic view of a limiting block of a degreased sintered ceramic jig according to another embodiment of the present invention cooperating with a jig body;

FIG. 5 is a schematic view of a limiting block of a degreased sintered ceramic jig according to another embodiment of the present invention cooperating with a jig body;

FIG. 6 is a schematic view of a first stopper of a degreased and sintered ceramic fixture according to yet another embodiment of the present invention;

FIG. 7 is a schematic view of a plurality of position-limiting members arranged on the jig body;

the jig comprises a jig body 10, a first limiting block 11, a bottom limiting block 111, a top limiting block 112, a second limiting block 12, a first groove 13, a double-wing structure product 20 and a support sheet 21.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The degreasing sintered ceramic jig of the powder metallurgy product with the double-wing structure according to the embodiment of the utility model is described below with reference to fig. 1 to 7.

The degreasing sintering ceramic jig for the double-wing structure powder metallurgy product comprises a jig body 10 made of ceramic materials, wherein the top surface of the jig body 10 is a supporting plane, a first limiting block 11 and a second limiting block 12 are arranged on the top surface of the jig body 10, and the first limiting block 11 and the second limiting block 12 are arranged oppositely;

the first stopper 11 and the second stopper 12 are both located between two wings of the double-wing structure product 20, and the first stopper 11 and the second stopper 12 are respectively arranged at two ends of the two wings of the double-wing structure product 20;

the first limiting block 11 and the second limiting block 12 are used for limiting the distance between the two wing end parts of the double-wing structure product 20.

The jig is used for supporting and limiting a double-wing structure product 20, before a sintering process, a first limiting block 11 and a second limiting block 12 are jointly positioned on the top surface of a jig body 10, then a formed blank body is placed on the top surface of the jig body, and the first limiting block 11 and the second limiting block 12 are located between two wings of the formed blank body. The two limit blocks can effectively limit the distance between the two wings, ensure the consistency of the sintering deformation of the two wings, prevent the included angle of the two wings which should be kept parallel after sintering, and improve the product percent of pass. The double-wing structure product in this embodiment is a 5G base station chassis fixing bracket.

The double wings of the double-wing structure product 20 have a certain height, and the first limiting block 11 and the second limiting block 12 are limited to be cuboid; the heights of the first stopper 11 and the second stopper 12 both correspond to the wing height of the double-wing structure product 20. Therefore, the longitudinal deflection of the double wings in the sintering process can be prevented, and the product percent of pass is further improved.

It should be noted that the widths of the first limiting block 11 and the second limiting block 12 are less than or equal to the distance between the two wings at the corresponding positions of the product 20 with the two-wing structure, and less than the distance between the two wings at the corresponding positions of the molded blank, so that the deformation of the blank during sintering is not affected while a good limiting effect is achieved.

In order to enable the limiting blocks to be matched with the size of a double-wing structure product, the width of the first limiting block 11 is 6-8mm, and the height of the first limiting block is 2 mm; the width of the second limiting block 12 is 4-5mm, and the height is 2-16 mm.

In some embodiments, the bottom of the dual wing structure product 20 has a support sheet, such that the first stopper 11 is composed of a bottom stopper 111 and a top stopper 112, the width of the top stopper 112 is greater than the width of the bottom stopper 111, such that the side of the bottom stopper 111 forms a step with the side of the top stopper 112; the bottom of one end of the double-wing structure product 20 is provided with a support sheet 21, and the support sheet 21 is positioned at the step. Therefore, the bottom limiting block 111 can limit the supporting sheet 21, and the top limiting block 112 can limit the distance between the two wings. In order to make the limiting block match the size of the double-wing structure product, the width of the bottom limiting block 111 is 6-8mm, and the height is 2 mm; the top stopper 112 has a width of 10-11mm and a height of 6-7 mm.

Further, in order to reduce the difficulty of placing the molded green body on the jig body 10 and facilitate demolding of the sintered product, a first groove 13 is formed in the top surface of the jig body 10, the shape of the first groove 13 is matched with that of the first limiting block 11, and the bottom of the first limiting block 11 is detachably arranged in the first groove 13.

The top surface of the jig body 10 is provided with a second groove 14, the shape of the second groove 14 is matched with the shape of the second limiting block 12, and the bottom of the second limiting block 12 is detachably arranged in the second groove 14.

It should be noted that the bottoms of the two limiting blocks are directly matched with the groove, and the size of the groove is slightly larger than the size of the bottoms of the two limiting blocks on the premise of not influencing limiting effect and facilitating taking of the limiting blocks.

Therefore, when the molded blank body is placed on the jig body 10, the two limiting blocks are firstly installed on the jig body 10, and then the molded blank body is placed on the jig body, and the two limiting blocks are both positioned between the two wings; during the drawing of patterns, take off the sintering product, if there is the stopper card in the phenomenon of sintering product, then take off the stopper from the sintering product can, be equivalent to directly extract the sintering product from integration sintering tool, this drawing of patterns process is laborsaving convenient more.

In some embodiments, the bottoms of the two limiting blocks are directly arranged in the groove, and in other embodiments, a mounting bar is additionally arranged at the bottom of the limiting block, so that the mounting bar is arranged in the groove.

Further, in order to improve the production efficiency, a first stopper 11 and a second stopper 12 are a set of stopper members; the top surface of the jig body 10 is provided with a plurality of groups of limiting members which are arranged in an array manner.

Other configurations and operations of the degreasing sintering ceramic jig for the double-wing structure powder metallurgy product according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (8)

1. A degreasing and sintering ceramic jig for a double-wing structure powder metallurgy product comprises a jig body made of a ceramic material, and is characterized in that the top surface of the jig body is a supporting plane, a first limiting block and a second limiting block are arranged on the top surface of the jig body, and the first limiting block and the second limiting block are arranged oppositely;

the first limiting block and the second limiting block are both positioned between two wings of the double-wing structure product, and are respectively arranged at two ends of the two wings of the double-wing structure product;

the first limiting block and the second limiting block are used for limiting the distance between the two wing end parts of the double-wing structure product.

2. The degreasing and sintering ceramic jig of claim 1, wherein the first limiting block and the second limiting block are both rectangular;

the heights of the first limiting block and the second limiting block correspond to the wing heights of the double-wing structure product.

3. The degreasing and sintering ceramic jig of claim 2, wherein the first limiting block has a width of 6-8mm and a height of 2 mm;

the width of the second limiting block is 4-5mm, and the height of the second limiting block is 2-16 mm.

4. The ceramic jig for degreasing and sintering of claim 1, wherein the first limiting block is composed of a bottom limiting block and a top limiting block, and the width of the top limiting block is larger than that of the bottom limiting block, so that a step is formed between the side of the bottom limiting block and the side of the top limiting block;

the bottom of one end of the double-wing structure product is provided with a supporting sheet, and the supporting sheet is positioned at the step.

5. The degreasing and sintering ceramic jig of claim 4, wherein the bottom limiting block has a width of 6-8mm and a height of 2 mm;

the width of the top limiting block is 10-11mm, and the height is 6-7 mm.

6. The ceramic jig for degreasing and sintering of claim 2 or 4, wherein the top surface of the jig body is provided with a first groove, the shape of the first groove is matched with the shape of the first limiting block, and the bottom of the first limiting block is detachably arranged in the first groove.

7. The ceramic jig for degreasing and sintering of claim 2, wherein the top surface of the jig body is provided with a second groove, the shape of the second groove is matched with the shape of the second limiting block, and the bottom of the second limiting block is detachably arranged in the second groove.

8. The ceramic jig for degreasing and sintering of claim 1, wherein the first stopper and the second stopper are a set of stopper members;

the top surface of the jig body is provided with a plurality of groups of limiting members which are arranged in an array mode.

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