Powder metallurgy metal product sintering jig

Abstract

The utility model discloses a sintering jig for powder metallurgy metal products, and relates to the technical field of sintering jigs. The sintering placing jig comprises a sintering placing jig body and a powder metallurgy metal product to be sintered, a plurality of sets of installation grooves are formed in the surface of the sintering placing jig body, a ceramic block is arranged on the sintering placing jig body, and a U-shaped positioning clamp is fixedly installed on the surface of the ceramic block. And when the U-shaped positioning clamp is inserted into the mounting groove, the ceramic block and the sintering placing jig are positioned and mounted. The ceramic block is positioned and placed on the upper surface of the sintering placing jig through the two sets of U-shaped positioning clamps on the bottom face of the ceramic block, the position of the ceramic block is adjusted, and the ceramic block is fixed to the surface of the sintering placing jig through the fixing assembly. The to-be-sintered powder metallurgy metal product is supported and placed during sintering through the ceramic block, and the situation that the product collapses and expands and deforms due to the fact that the middle position of the to-be-sintered powder metallurgy metal product is not supported or limited during sintering is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering jigs, in particular to a sintering jig for powder metallurgy metal products. Background Art

[0002] Powder metallurgy is a material preparation technology that involves forming metal powder under high pressure and then heating it to a high temperature to sinter it into a whole. This technology can produce products that are difficult to obtain through traditional smelting processes. Powder metallurgy metal products have the advantages of high density, excellent mechanical properties, and the ability to produce complex-shaped parts. Powder metallurgy metal products are widely used in the automotive, electronics, aerospace, tool manufacturing and other industries.

[0003] Existing powder metallurgy metal products are often placed on existing ceramic plates during sintering. Due to the influence of gravity and friction between the curved structure of powder metallurgy metal products and the ceramic plates, the products may collapse and deform outward after sintering, which in turn affects the product drawing size and the difficulty of subsequent shaping.

[0004] For this reason, a powder metallurgy metal product sintering jig is proposed. Utility Model Content

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and to provide a sintering jig for powder metallurgy metal products.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A powder metallurgy metal product sintering jig includes a sintering placement jig and a powder metallurgy metal product to be sintered. The surface of the sintering placement jig is provided with several groups of mounting grooves, and a ceramic block is provided on the sintering placement jig. A U-shaped positioning card is fixedly installed on the surface of the ceramic block, so that the U-shaped positioning card and the mounting groove are plugged into each other to position and install the ceramic block and the sintering placement jig. A fixing component is provided on the U-shaped positioning card to fix the ceramic block and the sintering placement jig.

[0008] Furthermore, at least two groups of support plates are fixedly mounted on the sintering placement jig to support and place the sintering placement jig.

[0009] Furthermore, the fixing assembly includes a threaded column fixedly mounted on the U-shaped positioning card, the surface of the threaded column is sleeved with a clamping plate, and the surface of the threaded column is threadedly sleeved with a clamping plate.

[0010] Furthermore, three groups of positioning ridges are equidistantly arranged on the ceramic block, dividing the surface of the ceramic block into two groups of positioning grooves for placing two groups of powder metallurgy metal products to be sintered on the surface of the ceramic block.

[0011] Furthermore, both ends of the U-shaped positioning card are fitted with the inner walls of both sides of the installation slot, and the U-shaped positioning card is slidably arranged in the installation slot.

[0012] Furthermore, the surface of the pressing plate is provided with an anti-slip pattern, and the pressing plate is tightly fitted with the surface of the sintering placement jig under the action of the knob to fix the sintering placement jig on the sintering placement jig.

[0013] The beneficial effects of the utility model are as follows:

[0014] The U-shaped positioning card on the bottom surface of the ceramic block is inserted into the mounting groove on the surface of the sintering placement jig. The ceramic block is positioned and placed on the upper surface of the sintering placement jig through the two sets of U-shaped positioning cards on the bottom surface of the ceramic block. The position of the ceramic block is adjusted, and the ceramic block is fixed to the surface of the sintering placement jig through the fixing assembly. The ceramic block supports and places the powder metallurgy metal product to be sintered during sintering, and the powder metallurgy metal product to be sintered will not collapse or deform outward due to the lack of support and limitation in the middle position during sintering. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a bottom view of the utility model;

[0017] Figure 3 This is a schematic diagram of the sintering placement fixture of the utility model;

[0018] Figure 4 This is a schematic diagram of a ceramic block supporting a powder metallurgy metal product to be sintered according to the present invention;

[0019] Figure 5 This utility model Figure 4 Exploded diagram;

[0020] Figure numerals: 1. sintering placement fixture; 11. mounting groove; 12. support plate; 2. ceramic block; 3. U-shaped positioning card; 4. fixing component; 401. threaded column; 402. pressing plate; 403. knob; 5. positioning ridge; 6. powder metallurgy metal product to be sintered. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 5As shown, a powder metallurgy metal product sintering jig includes a sintering placement jig 1 and a powder metallurgy metal product 6 to be sintered. Several groups of mounting grooves 11 are provided on the surface of the sintering placement jig 1, and a ceramic block 2 is provided on the sintering placement jig 1. A U-shaped positioning card 3 is fixedly installed on the surface of the ceramic block 2, so that the U-shaped positioning card 3 and the mounting groove 11 are plugged into each other to position and install the ceramic block 2 and the sintering placement jig 1. A fixing component 4 is provided on the U-shaped positioning card 3 for fixing the ceramic block 2 and the sintering placement jig 1. More specifically, the U-shaped positioning card 3 on the bottom surface of the ceramic block 2 is inserted into the mounting groove 11 on the surface of the sintering placement jig 1, and the two groups of U-shaped positioning cards 3 on the bottom surface of the ceramic block 2 are used to position the ceramic block 2 on the upper surface of the sintering placement jig 1. The position of the ceramic block 2 is adjusted, and the ceramic block 2 is fixed to the surface of the sintering placement jig 1 through the fixing component 4. The ceramic block 2 is used to support and place the powder metallurgy metal product 6 to be sintered during sintering, and the powder metallurgy metal product 6 to be sintered will not collapse or deform outward due to the lack of support and limitation in the middle position during sintering.

[0026] At least two sets of support plates 12 are fixedly mounted on the sintering placement jig 1 to support and place the sintering placement jig 1. More specifically, the support plates 12 on the bottom surface of the sintering placement jig 1 support the sintering placement jig 1, making it easy to remove the sintering placement jig 1 from the sintering furnace.

[0027] The fixing assembly 4 includes a threaded column 401 fixedly mounted on the U-shaped positioning card 3. A clamping plate 402 is sleeved on the surface of the threaded column 401. The clamping plate 402 is threadedly sleeved on the surface of the threaded column 401. More specifically, after the ceramic block 2 is inserted into the mounting groove 11 on the surface of the sintering and placing jig 1 through the U-shaped positioning card 3 on its bottom surface, the clamping plate 402 is sleeved on the surface of the threaded column 401. The knob 403 is threadedly sleeved on the surface of the threaded column 401, and an upward force is applied to the knob 403 through the clamping plate 402, so that the upper surface of the clamping plate 402 is tightly fitted with the bottom surface of the sintering and placing jig 1, thereby fixing the ceramic block 2.

[0028] Three sets of positioning ridges 5 are equidistantly arranged on the ceramic block 2, dividing the surface of the ceramic block 2 into two sets of positioning grooves for placing two sets of powder metallurgy metal products 6 to be sintered on the surface of the ceramic block 2. More specifically, the three sets of positioning ridges 5 equidistantly arranged on the surface of the ceramic block 2 enable the two sets of powder metallurgy metal products 6 to be sintered to be positioned and placed on the surface of the ceramic block 2.

[0029] The ends of the U-shaped positioning clip 3 are fitted against the inner walls of the mounting groove 11, and the U-shaped positioning clip 3 slides within the mounting groove 11. More specifically, the U-shaped positioning clip 3 on the bottom surface of the ceramic block 2 is inserted into the mounting groove 11, thereby positioning the ceramic block 2 on the top surface of the sintering fixture 1.

[0030] The surface of the pressing plate 402 is provided with an anti-slip pattern. The pressing plate 402, under the action of the knob 403, closely adheres to the surface of the sintering placement jig 1, thereby securing the sintering placement jig 1 thereon. More specifically, the anti-slip pattern on the surface of the pressing plate 402 allows the ceramic block 2 to be secured by the frictional force of the contact between the pressing plate 402 and the sintering placement jig 1.

[0031] In summary: the U-shaped positioning card 3 on the bottom surface of the ceramic block 2 is inserted into the mounting groove 11 on the surface of the sintering placement jig 1, and the two groups of U-shaped positioning cards 3 on the bottom surface of the ceramic block 2 are used to position the ceramic block 2 on the upper surface of the sintering placement jig 1, and the position of the ceramic block 2 is adjusted, and the ceramic block 2 is fixed to the surface of the sintering placement jig 1 through the fixing component 4. The ceramic block 2 is used to support and place the powder metallurgy metal product 6 to be sintered during sintering, and the powder metallurgy metal product 6 to be sintered will not collapse or deform outward due to the lack of support and limitation in the middle position during sintering.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A sintering jig for powder metallurgy metal products, characterized in that: The invention comprises a sintering placement jig (1) and a powder metallurgy metal product (6) to be sintered. The surface of the sintering placement jig (1) is provided with a plurality of mounting grooves (11), and a ceramic block (2) is provided on the sintering placement jig (1). A U-shaped positioning card (3) is fixedly installed on the surface of the ceramic block (2), so that the U-shaped positioning card (3) and the mounting groove (11) are plugged into each other to position and install the ceramic block (2) and the sintering placement jig (1). A fixing component (4) is provided on the U-shaped positioning card (3) to fix and install the ceramic block (2) and the sintering placement jig (1).

2. A powder metallurgy metal product sintering jig according to claim 1, characterized in that: At least two groups of support plates (12) are fixedly mounted on the sintering placement jig (1) to support and place the sintering placement jig (1).

3. The powder metallurgy metal product sintering jig according to claim 1, characterized in that: The fixing assembly (4) comprises a threaded column (401) fixedly mounted on the U-shaped positioning card (3), the surface of the threaded column (401) being sleeved with a clamping plate (402), and the surface of the threaded column (401) being sleeved with a clamping plate (402).

4. The powder metallurgy metal product sintering jig according to claim 1, characterized in that: Three groups of positioning ridges (5) are equidistantly arranged on the ceramic block (2), dividing the surface of the ceramic block (2) into two groups of positioning grooves for placing two groups of powder metallurgy metal products (6) to be sintered on the surface of the ceramic block (2).

5. The powder metallurgy metal product sintering jig according to claim 1, characterized in that: The two ends of the U-shaped positioning card (3) are arranged in a close fit with the inner walls of both sides of the installation groove (11), and the U-shaped positioning card (3) is arranged in a sliding manner in the installation groove (11).

6. The powder metallurgy metal product sintering jig according to claim 3, characterized in that: The surface of the pressing plate (402) is provided with anti-slip patterns, and the pressing plate (402) is tightly fitted with the surface of the sintering placement jig (1) under the action of the knob (403), so as to fix the sintering placement jig (1) on the sintering placement jig (1).

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