High-efficiency heat dissipation tooling for magnesium alloy workpiece heat treatment

Abstract

The utility model discloses a magnesium alloy workpiece heat treatment high -efficient heat dissipation frock, including the heat dissipation box, the heat dissipation box side wall is equipped with the chamber door, the chamber door is connected with the heat dissipation box sliding, the heat dissipation box inner bottom is equipped with two vertical boards, the vertical board side wall is equipped with the mounting mechanism for installing workpiece, the mounting mechanism includes the rotating shaft of rotation connection in the vertical board side wall, the rotating shaft side wall fixedly connected with the mounting frame, the mounting frame side wall is rotatably connected with the first double -end screw rod, two clamps are screw -threaded connection on the first double -end screw rod, the utility model sets up the mounting mechanism, can to magnesium alloy workpiece carries out stable clamping, can effectively avoid the room temperature rise problem caused by hot air in frock peripheral environment accumulation, guarantees the temperature difference stability of cold gas and workpiece in the heat dissipation process, significantly improves the heat exchange efficiency and heat dissipation stability, reduces the influence of hot air to workshop operation environment simultaneously, improves the operating personnel working condition.

Description

Technical Field

[0001] This utility model relates to the field of magnesium alloy workpiece production technology, and in particular to a high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces. Background Technology

[0002] Heat treatment of magnesium alloy workpieces is a key process for controlling their microstructure and mechanical properties. Through processes such as solution treatment, aging treatment, and annealing, the strength, hardness, corrosion resistance, and processing performance of magnesium alloys can be improved, meeting the needs of aerospace, automotive manufacturing, electronic devices and other fields for lightweight, high-performance components.

[0003] Traditional heat treatment fixtures for magnesium alloy workpieces often employ forced air cooling, which involves blowing clean compressed air or room-temperature air onto the workpiece surface using fans or blowers. This method utilizes the principle of accelerated air convection to increase the heat dissipation rate. While this method offers advantages such as ease of operation and no residual media, it has certain drawbacks: Firstly, the hot air exchanged with the workpiece during the heat dissipation process cannot be effectively expelled and tends to accumulate in the surrounding environment of the fixture, leading to a continuous increase in local room temperature. This, in turn, reduces the temperature difference between the subsequently blown air and the workpiece, weakening the heat exchange efficiency and causing a gradual decrease in the heat dissipation rate and poor stability. Secondly, the fixed position of the workpiece makes it prone to insufficient local heat dissipation, further affecting the dimensional accuracy and mechanical property consistency of the workpiece after heat treatment. This fails to meet the processing requirements of high-precision, multi-specification magnesium alloy workpieces. To address these issues, this invention proposes a high-efficiency heat dissipation fixture for the heat treatment of magnesium alloy workpieces. Utility Model Content

[0004] The main purpose of this invention is to provide a high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces includes a heat dissipation box. A door is provided through the side wall of the heat dissipation box, and the door is slidably connected to the heat dissipation box. Two vertical plates are provided at the bottom of the heat dissipation box. An installation mechanism for mounting workpieces is provided on the side wall of each vertical plate. The installation mechanism includes a rotating shaft rotatably connected to the side wall of the vertical plate. An installation frame is fixedly connected to the side wall of the rotating shaft. A first double-ended screw is rotatably connected to the side wall of the installation frame. Two clamping plates are threaded onto the first double-ended screw. A motor is fixedly connected to one of the vertical plate side walls. An air intake hood and an air outlet box are respectively installed on the two inner walls of the heat dissipation box. An air intake pipe is connected to the upper end of the air intake hood, and an air inlet pipe is connected to the lower end of the air outlet box. Multiple air outlet holes are opened at the upper end of the air outlet box. A drive mechanism for moving the two vertical plates is provided inside the heat dissipation box.

[0007] Preferably, the driving mechanism includes a second double-ended screw rotatably connected to the side wall of the heat sink, and two sliding blocks are threadedly connected to the second double-ended screw. The lower end of the sliding block is fixedly connected to the upper end of the adjacent vertical plate, and the lower end of the vertical plate is slidably connected to the bottom of the heat sink.

[0008] Preferably, a first handwheel is fixedly connected to the side wall of the first double-ended screw, and a second handwheel is fixedly connected to the side wall of the second double-ended screw.

[0009] Preferably, the door has a U-shaped cross-section, and a handle is fixedly connected to the side wall of the door.

[0010] Preferably, the side wall of the cabinet door has an opening, and an observation window is installed in the opening. The observation window is made of tempered glass.

[0011] Preferably, multiple fans are installed at the bottom of the heat sink, and a dustproof screen is provided inside the air outlet.

[0012] Preferably, a baffle is fixedly connected to the top of the mounting frame, and the clamp is slidably connected to the baffle.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This device is equipped with an installation mechanism that can stably clamp magnesium alloy workpieces. The motor drives the workpiece to rotate to ensure uniform heat dissipation. At the same time, through the cooperation of the suction hood, suction pipe and external suction pump, it can effectively avoid the problem of room temperature rise caused by the accumulation of hot air in the surrounding environment of the tooling. It ensures a stable temperature difference between the cold air and the workpiece during the heat dissipation process, significantly improves heat exchange efficiency and heat dissipation stability, and reduces the impact of hot air on the workshop working environment, improving the working conditions of operators.

[0015] 2. This device is equipped with a drive mechanism, and the design of the second double-headed screw and sliding block to adjust the vertical plate spacing can flexibly adapt to magnesium alloy workpieces of different lengths, solving the defects of traditional tooling that is difficult to adapt to workpieces of multiple specifications and is prone to clamping deviation.

[0016] 3. This device is equipped with a motor, which drives the rotating shaft and mounting frame to rotate the workpiece. Combined with the multi-outlet design of the air outlet box and the auxiliary air supply of the fan, it can ensure that the cold air evenly covers all surfaces of the workpiece and avoid insufficient local heat dissipation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces proposed in this utility model.

[0018] Figure 2 This is a front view of the high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces proposed in this utility model.

[0019] Figure 3 This is a side view of the high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces proposed in this utility model.

[0020] Figure 4 This is another side view of the high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces proposed in this utility model.

[0021] In the diagram: 1. Heat sink, 2. Sliding block, 3. Vertical plate, 4. Suction hood, 5. Suction pipe, 6. Motor, 7. Door, 8. Exhaust box, 9. Inlet pipe, 10. First double-ended screw, 11. Rotating shaft, 12. First handwheel, 13. Clamping plate, 14. Mounting frame, 15. Second double-ended screw, 16. Second handwheel, 17. Baffle, 18. Fan, 19. Observation window, 20. Handle. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-4 As shown, a high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces includes a heat dissipation box 1. A door 7 is provided through the side wall of the heat dissipation box 1, and the door 7 is slidably connected to the heat dissipation box 1. Two vertical plates 3 are provided at the bottom of the heat dissipation box 1. The side wall of the vertical plates 3 is provided with a mounting mechanism for mounting workpieces. The mounting mechanism includes a rotating shaft 11 rotatably connected to the side wall of the vertical plate 3. A mounting frame 14 is fixedly connected to the side wall of the rotating shaft 11. A first double-ended screw 10 is rotatably connected to the side wall of the mounting frame 14. Two clamping plates 13 are threadedly connected to the first double-ended screw 10. A motor 6 is fixedly connected to the side wall of one of the vertical plates 3. An air suction hood 4 and an air outlet box 8 are respectively installed on the two inner walls of the heat dissipation box 1. An air suction pipe 5 is connected to the upper end of the air suction hood 4, and an air inlet pipe 9 is connected to the lower end of the air outlet box 8. Multiple air outlet holes are opened at the upper end of the air outlet box 8, which are shown in the figure.

[0024] The heat sink 1 is equipped with a drive mechanism for moving two vertical plates 3. The drive mechanism includes a second double-headed screw 15 rotatably connected to the side wall of the heat sink 1. Two sliding blocks 2 are threadedly connected to the second double-headed screw 15. The lower end of the sliding block 2 is fixedly connected to the upper end of the adjacent vertical plate 3, and the lower end of the vertical plate 3 is slidably connected to the bottom of the heat sink 1.

[0025] In this utility model, a first handwheel 12 is fixedly connected to the side wall of the first double-ended screw 10, and a second handwheel 16 is fixedly connected to the side wall of the second double-ended screw 15, so as to facilitate the rotation of the first double-ended screw 10 and the second double-ended screw 15.

[0026] In this utility model, the door 7 has a U-shaped cross-section, which can effectively prevent the door 7 from being completely pulled out of the heat dissipation box 1 due to negligence during operation, avoid the door 7 from falling off and being damaged, or cause the cold air inside the heat dissipation box 1 to leak out instantly, and ensure operational safety and heat dissipation sealing. The side wall of the door 7 is fixedly connected to a handle 20, which provides a convenient force point for opening and closing the door 7, making it easy for operators to quickly complete the opening and closing action of the door 7, reducing the time that high-temperature workpieces are exposed to air, reducing the risk of workpiece surface oxidation, and improving the efficiency of tooling use.

[0027] In this invention, the side wall of the door 7 has an opening, and an observation window 19 is installed inside the opening. The observation window 19 is made of tempered glass. Through the tempered glass observation window 19, the operator can directly observe the clamping status, rotation, and heat dissipation progress of the workpiece inside the heat dissipation box 1. Without opening the door 7, it is possible to determine whether there are problems such as workpiece displacement or abnormal airflow. This avoids the loss of cold air and the entry of hot air due to opening the door 7. At the same time, the tempered glass has the characteristics of high temperature resistance (able to withstand the medium and high temperature environment inside the heat dissipation box 1) and impact resistance, which can effectively resist temperature fluctuations and minor collisions during the heat dissipation process, ensuring the safety and reliability of the monitoring process and reducing tooling maintenance costs.

[0028] In this invention, multiple fans 18 are installed at the bottom of the heat dissipation box 1, providing additional airflow power for the heat dissipation box 1. Especially for magnesium alloy workpieces with large volume and wide heat dissipation area, the fans 18 can accelerate the air circulation inside the box, pushing the cold air delivered by the air outlet box 8 to cover the surface of the workpiece more evenly, avoiding the accumulation of cold air in local areas, and further improving the heat dissipation efficiency. The heat dissipation box 1 has an air inlet below the fans 18, which can replenish the outside room temperature air in time, balance the air pressure inside the box, avoid negative pressure inside the box due to the delivery of cold air and the discharge of hot air, and ensure the stability of airflow. The air outlet is equipped with a dustproof net, which can effectively block dust and impurities in the outside air from entering the air outlet box 8 and the heat dissipation box 1, preventing dust from adhering to the surface of the workpiece and affecting its processing quality.

[0029] In this utility model, a baffle 17 is fixedly connected to the top of the mounting frame 14, and the clamping plate 13 is slidably connected to the baffle 17. A through groove for the baffle 17 to pass through is opened at the upper end of the clamping plate 13. The presence of the baffle 17 can prevent the workpiece from touching the first double-ended screw 10 when it is placed in the mounting frame 14.

[0030] In the initial state, a controller and a temperature sensor are installed on the side wall of heat sink 1.

[0031] When in use, connect the air inlet pipe 9 connected to the lower end of the air outlet box 8 to an external compressor or air cooler to deliver cooling airflow; connect the air intake pipe 5 connected to the upper end of the air intake hood 4 to an external air intake pump, and the pipe at the air outlet of the air intake pump must extend outside the workshop to ensure that hot air can be directly discharged to the outside and avoid lingering in the workshop.

[0032] Then, place the magnesium alloy workpiece to be cooled in the two mounting frames 14, turn the first handwheel 12 to drive the first double-ended screw 10 to rotate, and the two clamping plates 13 will move relative to each other along the axis of the first double-ended screw 10 until the workpiece is tightly clamped. If the workpiece length is different, turn the second handwheel 16 to drive the second double-ended screw 15 to rotate, and the two sliding blocks 2 on the second double-ended screw 15 will move relative to each other or opposite to each other along the screw axis, thereby driving the vertical plate 3 fixedly connected to the sliding block 2 to slide at the bottom of the heat dissipation box 1. Adjust the distance between the two vertical plates 3 so that the tooling is adapted to the current workpiece length.

[0033] Finally, by pushing the U-shaped door 7 with handle 20, the heat dissipation box 1 is completely sealed to prevent the cold air inside the box from leaking out and the hot air outside from entering.

[0034] Next, the external compressor or air cooler, the suction pump, and the motor 6 on the side wall of the vertical plate 3 are started simultaneously through the controller on the side wall of the heat dissipation box 1. The cold air generated by the external compressor or air cooler enters the air outlet box 8 through the air inlet pipe 9, and is then blown upwards evenly to the surface of the workpiece through multiple air outlet holes at the top of the air outlet box 8, directly exchanging heat with the high-temperature workpiece and quickly reducing the workpiece temperature. After the motor 6 starts, it drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the fixedly connected mounting frame 14 and the clamped workpiece to rotate slowly and synchronously, so that each surface of the workpiece can be evenly contacted by the cold air sent out by the air outlet box 8, avoiding uneven heat dissipation caused by insufficient airflow coverage in some parts of the workpiece.

[0035] At the same time, the suction pump generates continuous suction through the suction pipe 5 and the suction hood 4. The hot air generated after heat exchange with the workpiece during the heat dissipation process enters the suction hood 4 upward under the dual action of natural upward trend and suction force of the suction hood 4, and is then discharged through the suction pipe 5, the suction pump and the pipe extending to the outside of the workshop, completely avoiding the hot air from lingering in the heat dissipation box 1 or the workshop environment.

[0036] If the workpiece is large and has high heat dissipation requirements, multiple fans 18 at the bottom of the heat dissipation box 1 can be activated. The fans 18 draw in ambient air through the air inlet below, accelerating the air circulation inside the heat dissipation box 1 and helping the cool air to cover the workpiece surface more quickly, further improving heat dissipation efficiency. During this process, the operator can monitor the rotation status, clamping stability and heat dissipation progress of the workpiece inside the heat dissipation box 1 in real time through the tempered glass observation window 19 on the box door 7. If any abnormality is found, the equipment parameters can be adjusted in time through the controller to ensure that the heat dissipation process is safe and stable.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces, comprising a heat dissipation box (1), characterized in that, The heat sink (1) has a door (7) extending through its side wall. The door (7) is slidably connected to the heat sink (1). Two vertical plates (3) are located at the bottom inside the heat sink (1). The side walls of the vertical plates (3) are equipped with an installation mechanism for mounting workpieces. The installation mechanism includes a rotating shaft (11) rotatably connected to the side wall of the vertical plate (3). A mounting frame (14) is fixedly connected to the side wall of the rotating shaft (11). A first double-headed screw (10) is rotatably connected to the side wall of the mounting frame (14). Two clamping plates (13) are threaded onto the head screw (10). A motor (6) is fixedly connected to the side wall of one of the vertical plates (3). An air suction hood (4) and an air outlet box (8) are respectively installed on the two inner walls of the heat dissipation box (1). An air suction pipe (5) is connected to the upper end of the air suction hood (4). An air inlet pipe (9) is connected to the lower end of the air outlet box (8). Multiple air outlet holes are opened at the upper end of the air outlet box (8). A drive mechanism for driving the two vertical plates (13) to move is provided inside the heat dissipation box (1).

2. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 1, characterized in that, The driving mechanism includes a second double-ended screw (15) rotatably connected to the side wall of the heat sink (1). Two sliding blocks (2) are threadedly connected to the second double-ended screw (15). The lower end of the sliding block (2) is fixedly connected to the upper end of the adjacent vertical plate (3). The lower end of the vertical plate (3) is slidably connected to the bottom of the heat sink (1).

3. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 2, characterized in that, The first double-ended screw (10) has a first handwheel (12) fixedly connected to its side wall, and the second double-ended screw (15) has a second handwheel (16) fixedly connected to its side wall.

4. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 3, characterized in that, The door (7) has a U-shaped cross section, and a handle (20) is fixedly connected to the side wall of the door (7).

5. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 4, characterized in that, The side wall of the box door (7) has an opening, and an observation window (19) is installed in the opening. The observation window (19) is made of tempered glass.

6. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 5, characterized in that, Multiple fans (18) are installed at the bottom of the heat sink (1), and a dustproof net is provided in the air outlet.

7. The high-efficiency heat dissipation fixture for heat treatment of magnesium alloy workpieces according to claim 1, characterized in that, A baffle (17) is fixedly connected to the top of the mounting frame (14), and the clamp (13) is slidably connected to the baffle (17).

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