Heat treatment frame

Abstract

The utility model provides a heat treatment frame, which is used for heat treatment of aluminum alloy die castings, and is characterized by comprising a flat plate-shaped tray provided with a plurality of tray openings; the frame body is arranged perpendicular to the tray, and a space used for containing the aluminum alloy casting is formed on the tray in a surrounding mode; a plurality of tray openings are formed in the tray body, a middle-layer block is laid on the tray body and is a net-shaped metal layer, meshes of the middle-layer block are smaller than the tray openings, and the minimum distance between the tray openings is smaller than the minimum distance between the tray openings. As the heat treatment frame adopts the tray and the frame body structure, the aluminum alloy die casting is flatly laid on the tray and is surrounded by the frame body to form the space, and the structure can provide more uniform support, so that the stress of the die casting is more uniform in the heat treatment process, the possibility of stress concentration is reduced, and the deformation risk of the die casting is reduced.

Description

Technical Field

[0001] The utility model relates to the processing of aluminum alloy castings, in particular to a heat treatment frame. Background Art

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

[0003] Aluminum alloy die castings have the advantages of light weight, high strength, and corrosion resistance, and are widely used in the fields of automobiles, aerospace, and electronic communications. However, defects such as pores and shrinkage are easily generated during the die casting process, and the alloy has coarse grains and unstable performance, so heat treatment is required to improve its performance.

[0004] The heat treatment frame is a container for placing aluminum alloy die castings. Its main functions include: Shape retention: Die castings are easily deformed at high temperatures. The heat treatment frame can fix their shape and ensure the dimensional accuracy after heat treatment. Surface protection: The atmosphere needs to be controlled during the heat treatment process to avoid oxidation and surface contamination. The heat treatment frame can provide atmosphere protection and maintain the quality of the die casting surface. Temperature control: The heat treatment process requires strict temperature control to ensure that the alloy structure achieves the desired effect. The heat treatment frame can provide uniform temperature distribution and stable heating rate. Fixed position: The reasonably designed structure of the heat treatment frame can ensure the fixed position of the die casting during the heat treatment process to avoid uneven treatment or damage due to movement.

[0005] The design of the heat treatment frame needs to consider the following factors: Material selection: High temperature resistant and corrosion resistant alloy materials such as stainless steel or nickel-based alloys are usually used to ensure its stability and durability during the heat treatment process. Structural design: The shape and size of the die casting should be taken into consideration to design a suitable container structure to ensure that the die casting can be fixed in the proper position and maintain good contact with the heating source. Ventilation design: In order to ensure atmosphere control during the heat treatment process, the heat treatment frame usually needs to be designed with a suitable ventilation device to ensure uniform flow and stability of the atmosphere. Thermal conductivity: The material and structure of the heat treatment frame need to have good thermal conductivity to ensure that the die casting can be evenly heated throughout the container to avoid the impact of temperature gradients on its performance.

[0006] Traditional heat treatment frames may have some defects in causing stress and deformation of aluminum alloy die castings. Traditional heat treatment frames are usually made of steel or other metal materials, and their rigidity is relatively high, which may cause uneven force to be applied to the die castings during the heat treatment process. This uneven force will cause stress concentration in the die castings during the heat treatment process, thereby causing deformation or deformation, especially the die castings will become soft after heating, which further aggravates this problem. In addition, there may be differences in the thermal expansion coefficients of aluminum alloy and metal heat treatment frames during the heating process, resulting in poor dimensional matching between the heat treatment frame and the die casting. When the temperature rises, the dimensional changes of the heat treatment frame and the die casting are inconsistent, which may cause uneven force or deformation of the die casting. Utility Model Content

[0007] The utility model aims to overcome the defect in the prior art that a heat treatment frame easily causes deformation of an aluminum alloy die casting, and provides a heat treatment frame which is not easy to deform the aluminum alloy die casting during heat treatment.

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

[0009] A heat treatment frame is used for heat treatment of aluminum alloy die castings, and its characteristics are that it includes: a tray, which is in the shape of a flat plate and is provided with a plurality of tray openings; a frame body, which is arranged perpendicular to the tray and surrounds the tray to form a space for holding the aluminum alloy castings; an intermediate layer of grids is laid on the tray, the intermediate layer of grids is a mesh metal layer, the mesh of the intermediate layer of grids is smaller than the tray openings, and a minimum distance between the plurality of tray openings.

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

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

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

[0013] Preferably, the frame is on the tray and together with the tray forms an open rectangular shape, the frame opening and the tray opening are rectangular and arranged in a matrix, and the frame opening near the bend of the frame is smaller in area than the frame openings at other positions.

[0014] In summary, since the heat treatment frame adopts a tray and frame structure, the aluminum alloy die-casting is 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-casting is subjected to more uniform force during the heat treatment process, reducing the possibility of stress concentration, thereby reducing the risk of deformation of the die-casting. The middle layer of the grid adopts a mesh metal layer, and the mesh is 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , is a schematic structural diagram of a robot joint clamp according to one embodiment of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings.

[0017] Figure 1 , is a schematic diagram of the three-dimensional structure of a robot joint fixture according to an embodiment of the present utility model. Figure 1 As shown, the heat treatment frame involved in the utility model is used for heat treatment of aluminum alloy die castings, including: a tray 1, which is in the shape of a flat plate and is provided with a plurality of tray openings 11; a frame 2, which is arranged perpendicular to the tray 1 and surrounds the tray 1 to form a space for holding the aluminum alloy castings; an intermediate layer of grids 3 is laid on the tray 1, the intermediate layer of grids 3 is a mesh metal layer, the mesh of the intermediate layer of grids 3 is smaller than the tray openings 11, and the minimum distance between the plurality of tray openings 11.

[0018] Furthermore, a metal protective net 4 is laid on the inner wall surface of the frame 2 , and a plurality of frame openings 21 are formed on the frame 2 .

[0019] Furthermore, the area of ​​the tray opening 11 is larger than that of the frame opening 21 .

[0020] Furthermore, the middle layer barrier 3 is provided with a barrier handle 5 at a position close to the frame 2 , and the relative position of the middle layer barrier 3 and the tray 1 or the frame 2 can be adjusted by dragging the barrier handle 5 .

[0021] Furthermore, the frame 2 is on the tray 1 and together with the tray 1 forms an open rectangular shape. The frame opening 21 and the tray opening 11 are rectangular and arranged in a matrix. The frame opening 21 near the bend of the frame 2 is smaller in 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, thereby 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 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 net on the inner wall of the frame, the support and protection of the aluminum alloy die casting can be further strengthened. The metal guard net can provide a more uniform support force and prevent the aluminum alloy die casting from deformation or displacement during the heat treatment process.

[0027] In the utility model, the setting of the frame opening and the tray opening can effectively adjust the flow of atmosphere and the heat exchange between the die casting and the surrounding environment, thereby achieving more accurate 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 tray opening area larger than the frame opening area, 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 setting a blocking handle at the position of the middle layer blocking close to the frame, the relative position of the middle layer blocking and the tray or frame can be easily adjusted. This design can improve the flexibility and adjustability of the heat treatment frame, adapt to die castings of different shapes and sizes, and ensure the stability and quality of the die castings during the heat treatment process.

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

[0031] The above contents are only preferred embodiments of the present invention and cannot limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope defined in the claims of the present invention should still fall within the protection scope of the present invention.

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 is arranged perpendicular to the tray and surrounds the tray to form a space for containing the aluminum alloy die casting; The pallet is laid on a grid with an intermediate layer, The intermediate layer is a mesh metal layer. The mesh of the middle layer blocking is smaller than the tray opening, and the minimum distance between a plurality of the tray openings.

2. The heat treatment frame according to claim 1, characterized in that The inner wall surface of the frame is paved with a metal protective net. The frame body is formed with a plurality of frame body openings.

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

4. The heat treatment frame according to claim 3, characterized in that: The middle layer of the barrier is provided with a barrier handle at a position close to 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, characterized in that The frame is on the tray and surrounds the tray to form 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 opening at other positions.

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