Heat treatment frame

Abstract

A heat treatment frame, which is used for heat treatment of an aluminum alloy die casting, and is characterized by comprising: a tray, which is in a flat plate shape and is provided with a plurality of tray openings; and a frame body, which is arranged perpendicular to the tray, a space used for containing the aluminum alloy die casting being formed to surround the tray. An intermediate layer partition is laid on the tray and is a mesh metal layer, meshes of the intermediate layer partition being smaller than the tray openings and the minimum distance between the plurality of tray openings. As the heat treatment frame uses the tray and frame body structure, the aluminum alloy die casting is laid on the tray, and is surrounded in the space formed by the frame body. Such structure can provide more uniform support, so that stress on the die casting is more uniform during heat treatment processes and the possibility of stress concentration is reduced, thereby reducing the risk of deformation of the die casting.

Description

Heat treatment frame TECHNICAL FIELD

[0001] The utility model discloses relate to aluminum alloy casting processing, especially a heat treatment frame. BACKGROUND

[0002] At present, aluminum alloy die casting is widely used in industrial production, and its performance and quality often need to be improved through heat treatment. Heat treatment frame is an important tool in the heat treatment process, which can protect the shape and surface quality of aluminum alloy die casting, ensure temperature control and atmosphere protection during heat treatment, so that the die casting obtains ideal organizational structure and performance.

[0003] Aluminum alloy die casting has the advantages of light weight, high strength, corrosion resistance, etc., and is widely used in the fields of automobile, aerospace, electronic communication, etc. However, defects such as porosity and shrinkage are easy to occur during die casting, and the alloy has coarse grains inside, so its performance is unstable and needs to be improved through heat treatment.

[0004] Heat treatment frame is a container for placing aluminum alloy die casting, and its main functions include: shape retention: die casting is easy to deform at high temperature, and heat treatment frame can fix its shape to ensure the dimensional accuracy after heat treatment. Surface protection: atmosphere needs to be controlled during heat treatment to avoid oxidation and surface contamination, and heat treatment frame can provide atmosphere protection to maintain the quality of die casting surface. Temperature control: temperature needs to be strictly controlled during heat treatment to ensure that the alloy organization reaches the expected effect, and heat treatment frame can provide uniform temperature distribution and stable heating rate. Fixed position: heat treatment frame with reasonable structure can ensure the fixed position of die casting during heat treatment, avoiding uneven treatment or damage due to movement.

[0005] The design of heat treatment frame needs to consider the following factors: material selection: usually use high-temperature resistant and corrosion-resistant alloy materials such as stainless steel or nickel-based alloy to ensure its stability and durability during heat treatment. Structure design: consider the shape and size of die casting, design appropriate container structure to ensure that die casting can be fixed in the appropriate position and maintain good contact with the heating source. Ventilation design: in order to ensure the atmosphere control during heat treatment, heat treatment frame usually needs to design appropriate ventilation device to ensure the uniform flow and stability of atmosphere. Heat conduction performance: the material and structure of heat treatment frame need to have good heat conduction performance to ensure that die casting can be uniformly heated in the whole container, avoiding the influence of temperature gradient on its performance.

[0006] The traditional heat treatment frame may have some defects in causing stress deformation of the aluminum alloy pressure casting. The traditional heat treatment frame is usually made of steel or other metal materials, which has high rigidity and may cause uneven force applied to the pressure casting during the heat treatment process. Such uneven force may cause stress concentration of the pressure casting during the heat treatment process, thereby causing deformation or distortion, especially after heating, the pressure casting becomes soft, which further aggravates the problem. In addition, the aluminum alloy and the metal heat treatment frame may have different thermal expansion coefficients during the heating process, which may cause poor size matching between the heat treatment frame and the pressure casting. When the temperature rises, the sizes of the heat treatment frame and the pressure casting change inconsistently, which may cause uneven stress or deformation of the pressure casting. Content of the utility model

[0007] The utility model aims at overcoming the defects of the prior art that the heat treatment frame easily causes deformation of the aluminum alloy pressure casting, and provides a heat treatment frame which is not easy to deform the aluminum alloy pressure casting during heat treatment.

[0008] The utility model solves the above technical problems through the following technical scheme:

[0009] A heat treatment frame is used for heat treatment of an aluminum alloy pressure casting, and has the following characteristics: a tray, which is in the shape of a flat plate, is provided with a plurality of tray openings; a frame body is arranged perpendicularly to the tray and surrounds a space for containing the aluminum alloy casting on the tray; a middle layer grid is arranged on the tray, the middle layer grid is a mesh-shaped metal layer, the mesh size of the middle layer grid is smaller than the tray opening, and the minimum distance between a plurality of tray openings.

[0010] Preferably, a metal protective net is arranged on the inner wall surface of the frame body, and a plurality of frame openings are formed in the frame body.

[0011] Preferably, the area of the tray opening is larger than that of the frame opening.

[0012] Preferably, the middle layer grid is provided with a grid handle at a position close to the frame body, and the relative position of the middle layer grid and the tray or the frame body can be adjusted by dragging the grid handle.

[0013] Preferably, the frame body and the tray together surround an open rectangular parallelepiped shape on the tray, the frame openings and the tray openings are rectangular and arranged in a matrix manner, the area of the frame opening close to the bent part of the frame body is smaller than that of the frame opening at other positions.

[0014] In summary, since the heat treatment frame adopts the tray and frame structure, the aluminum alloy die casting is laid on the tray and surrounded by the frame to form a space, which can provide more uniform support, so that the die casting is more uniform in stress during heat treatment, reducing the possibility of stress concentration, thereby reducing the risk of deformation of the die casting. The intermediate layer barrier adopts a mesh-shaped metal layer, and the mesh hole is smaller than the tray opening. This design can provide a certain elasticity during heat treatment, so that the size change between the heat treatment frame and the aluminum alloy die casting is more matched, reducing the risk of deformation caused by mismatched thermal expansion. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic diagram of a robot joint clamp according to an embodiment of the present application. DETAILED DESCRIPTION

[0016] The present application will be described in more detail below with reference to the embodiments and the accompanying drawings.

[0017] Fig. 1 is a structural schematic diagram of a robot joint clamp according to an embodiment of the present application. As shown in Fig. 1, the heat treatment frame according to the present application is used for heat treatment of aluminum alloy die castings, and includes: a tray 1, which is a flat plate, and is provided with a plurality of tray openings 11; a frame 2, which is perpendicular to the tray 1 and surrounds a space for containing aluminum alloy castings on the tray 1; and an intermediate layer barrier 3, which is a mesh-shaped metal layer, and has a mesh hole smaller than the tray opening 11 and the smallest distance between the plurality of tray openings 11.

[0018] Further, the inner wall surface of the frame 2 is provided with a metal guard net 4, and the frame 2 is formed with a plurality of frame openings 21.

[0019] Further, the area of the tray opening 11 is greater than that of the frame opening 21.

[0020] Further, the intermediate layer barrier 3 is provided with a barrier handle 5 at a position close to the frame 2, and dragging the barrier handle 5 can adjust the relative position of the intermediate layer barrier 3 with respect to the tray 1 or the frame 2.

[0021] Further, the frame 2 surrounds an open rectangular shape on the tray 1 together with the tray 1, the frame openings 21 and the tray openings 11 are rectangular and arranged in a matrix manner, and the frame opening 21 close to the bending part of the frame 2 has a smaller area than the frame openings 21 at other positions.

[0022] Since the heat treatment frame adopts a tray and frame structure, the aluminum alloy die-castings are laid flat on the tray and surrounded by the frame to form a space. This structure can provide more uniform support, so that the die-castings are subjected to more uniform force during the heat treatment process, reducing the possibility of stress concentration and thus reducing the risk of deformation of the die-castings.

[0023] The middle layer of the grid uses a mesh metal layer, and the mesh holes are smaller than the tray opening. This design can provide a certain degree of elasticity during the heat treatment process, so that the dimensional changes between the heat treatment frame and the aluminum alloy die-casting are more matched, reducing the risk of deformation caused by thermal expansion mismatch.

[0024] The setting of the middle layer of barriers can effectively fix the position of the die-casting, so that it remains stable during the heat treatment process, avoiding the displacement or deformation problems that may be caused by improper traditional fixing methods, thereby ensuring the uniformity and quality of the treatment.

[0025] The middle layer of the shield is made of metal material, which has good thermal conductivity and high temperature resistance. It can also provide effective atmosphere control to protect the surface of the die casting from oxidation and pollution, thereby improving the surface quality and performance of the die casting.

[0026] By laying a metal guard on the inner wall of the frame, the support and protection of the aluminum alloy die casting can be further strengthened. The metal guard can provide more uniform support and prevent the aluminum alloy die casting from deformation or displacement during the heat treatment process.

[0027] In the present invention, the arrangement of the frame opening and the tray opening can effectively regulate the flow of atmosphere and the heat exchange between the die casting and the surrounding environment, thereby achieving more precise atmosphere control and temperature regulation. In addition, the relatively small frame opening can reduce heat loss during the heat treatment process and improve the efficiency of the heat treatment.

[0028] In addition, by making the area of ​​the tray opening larger than the area of ​​the frame opening, it can be ensured that the die casting has sufficient support area on the tray and can better contact with the bottom of the heat treatment frame, thereby ensuring the stability and uniformity of the die casting during the heat treatment process.

[0029] Next, by providing a barrier handle near the frame, the intermediate barrier can be easily adjusted relative to the tray or frame. This design improves the flexibility and adjustability of the heat treatment frame, accommodating die-castings of varying shapes and sizes, and ensuring the stability and quality of the die-castings during the heat treatment process.

[0030] In addition, by arranging the frame openings and the tray openings in a matrix manner and making the frame openings close to the bending part of the frame smaller in area than the frame openings at other positions, the flow of atmosphere and the distribution of heat can be further optimized. This design can reduce the temperature gradient and atmosphere non-uniformity in the heat treatment process, and improve the heat treatment quality and performance of the die casting.

[0031] The above merely describes the preferred embodiments of the present application and should not be used to limit the scope of the present application, that is, any equivalent changes and modifications made within the scope defined by the claims of the present application shall still fall within the protection scope of the present application.

Claims

1. A heat treatment frame for heat treatment of aluminum alloy die castings, characterized in that: include: A tray, wherein the tray is in a flat plate shape and is provided with a plurality of tray openings; a frame body, the frame body being arranged perpendicular to the tray and surrounding a space on the tray for holding the aluminum alloy casting; The pallet is laid out with a middle layer of grid, The middle layer is a mesh metal layer. The mesh of the middle layer of the grid is smaller than the tray opening, and the minimum distance between the plurality of tray openings is smaller.

2. The heat treatment frame according to claim 1, wherein The inner wall surface of the frame is paved with a metal protective net. A plurality of frame openings are formed on the frame.

3. The heat treatment frame according to claim 2, wherein The tray opening has an area larger than the frame opening.

4. The heat treatment frame according to claim 3, wherein The middle layer of the barrier is provided with a barrier handle near the frame. The relative position of the middle layer barrier and the tray or the frame can be adjusted by dragging the barrier handle.

5. The heat treatment frame according to claim 4, wherein The frame is on the tray and together with the tray, forms an open rectangular parallelepiped shape. The frame opening and the tray opening are rectangular and arranged in a matrix. The frame opening near the bend of the frame has a smaller area than the frame openings at other positions.

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