A cooling device for metal casting processing

Abstract

This invention relates to the field of casting cooling technology and discloses a cooling device for metal casting processing. A drive assembly controls a tilting frame to tilt at a preset angle, reducing the volume of cavitation formed on the casting surface when it enters the coolant, thus initially reducing the proportion of cavitation on the casting surface. After the casting is fully immersed, the drive assembly controls the tilting frame to perform periodic forward and reverse rotation of 360 degrees or more. This causes cavitation on various parts of the casting surface to change position and rotate upwards for discharge. Simultaneously, newly generated vapor cavities also migrate upwards and are discharged during rotation, ensuring that the entire casting surface is uniformly covered by coolant. This solves the problem in conventional immersion cooling processes where residual air in the pits and depressions on the casting surface is difficult to expel, forming cavitation that prevents the coolant from fully contacting the casting surface, leading to uneven cooling and affecting the overall rigidity, strength, and dimensional stability of the casting.

Description

Technical Field

[0001] This invention relates to the field of casting cooling technology, specifically a cooling device for metal casting processing. Background Technology

[0002] In the industrial manufacturing field, the outer casings of some devices (such as pump casings, engine casings, etc.) are usually produced by a process of molten metal casting and one-piece molding. The resulting casings (hereinafter referred to as "castings") have excellent characteristics such as high structural strength and few internal defects. After the castings are cast, they need to be cooled to achieve the required mechanical properties. Immersing the castings in coolant for cooling is one of the common cooling methods.

[0003] In existing immersion cooling processes, high-temperature castings are typically placed on a lifting plate and submerged in a cooling tank along with it for cooling. However, as shell-type parts, castings generally have numerous irregularly shaped pits on their surfaces, with varying locations and orientations. When the casting is submerged in the cooling tank, air inside the downward-facing pits is difficult to expel, forming cavitation in the depressions. The residual air prevents sufficient contact between the coolant and the casting surface, resulting in uneven cooling of the casting surface and consequently affecting the overall rigidity, strength, and dimensional stability of the casting. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling device for metal casting processing, which solves the problem in conventional liquid immersion cooling processes where residual air in the pits and depressions on the casting surface is difficult to expel, forming cavitation that prevents the coolant from fully contacting the casting surface, resulting in uneven cooling of the casting surface and thus affecting the overall rigidity and dimensional stability of the casting.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cooling device for metal casting processing, comprising: The cooling pool has coolant inside; A lifting mechanism and a bracket mechanism are provided, wherein the bracket mechanism is positioned above the cooling pool, and the lifting mechanism drives the bracket mechanism to descend into the inner side of the cooling pool. The bracket mechanism includes a tilting frame rotatably mounted on one side of the lifting mechanism. The upper side of the tilting frame is provided with a clamping assembly for holding the casting. The lifting mechanism includes a driving assembly for driving the tilting frame to tilt. The drive assembly controls the tilting frame to tilt at a preset angle, so that when the casting held on the tilting frame enters the coolant in the cooling pool, the volume of the cavitation generated on the surface is reduced. After the casting is completely in the coolant, the drive assembly controls the casting to rotate in the coolant.

[0006] As a further description of the above technical solution: the drive component controls the rotation angle of the tilting frame to be greater than or equal to 360 degrees.

[0007] As a further description of the above technical solution: the clamping assembly includes a fastener frame that is rotatably assembled on both sides of the flipping frame, a tension spring is provided on one side of the fastener frame to pull the fastener frame, and a pressure bar for clamping the casting is provided in the middle of the fastener frame.

[0008] As a further description of the above technical solution: two firmware frames are symmetrically arranged on the flipping frame, and the lower sides of the two firmware frames are connected to a pull rope, the lower end of which is fixedly connected to the bottom of the cooling pool.

[0009] As a further description of the above technical solution: a support rod is provided on the inner side of the flipping frame, and multiple fastener bases are provided on the surface of the support rod, which are used to elastically support a single casting.

[0010] As a further description of the above technical solution: the fastener base includes an elastic part that is sleeved on the surface of the support rod, and a drag part is integrally formed on one side of the elastic part, the drag part supporting the lower surface of the casting.

[0011] As a further description of the above technical solution: the drag section is provided with a width.

[0012] As a further description of the above technical solution: the lifting mechanism also includes a lifting platform, and a downwardly extending extension frame is provided on one side of the lifting platform, and the tilting frame is rotatably assembled on the underside of the extension frame.

[0013] As a further description of the above technical solution: one side of the tilting frame is rotatably connected to the extension frame via a tilting shaft; The drive assembly includes a servo motor, which is mounted on the upper side of the extension frame. The extension frame is connected to the tilting shaft via a transmission structure.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. By controlling the tilting frame to tilt at a preset angle through the drive component, the volume of cavitation generated on the surface of the casting when it enters the coolant is reduced, initially reducing the proportion of cavitation on the casting surface. After the casting is fully immersed, the drive component controls the tilting frame to perform periodic forward and reverse rotation of 360 degrees or more, so that the cavitation on various parts of the casting surface changes position with the rotation and rotates to the upper side for discharge. At the same time, newly generated vapor cavities will also travel to the upper side for discharge during the rotation. This ensures that the entire surface of the casting is uniformly covered by coolant, avoids uneven cooling caused by cavitation isolation, and thus ensures the overall rigidity and dimensional stability of the casting.

[0015] 2. After the lifting mechanism controls the casting to exit the water, the drive component continues to control the tilting frame to rotate at least once, using centrifugal force to discharge the coolant remaining on the surface of the casting, reducing coolant consumption and thus saving production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the state of the bracket mechanism of the present invention clamping the casting; Figure 3 This is a schematic diagram of the bracket mechanism structure of the present invention; Figure 4 This is a schematic diagram of one side of the bracket mechanism of the present invention; Figure 5 This is a schematic diagram of the firmware base structure of the present invention; Figure 6 This is a schematic diagram of the lifting mechanism of the present invention.

[0017] In the diagram: 10. Cooling pool; 20. Lifting mechanism; 21. Lifting platform; 22. Extension frame; 23. Drive assembly; 30. Bracket mechanism; 31. Tilting frame; 311. Tilting shaft; 32. Support rod; 33. Fastener frame; 331. Tension spring; 332. Pressure rod; 333. Pull rope; 34. Fastener base; 341. Elastic part; 342. Trailing part. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0020] Combination Figures 1 to 6 A cooling device for metal casting processing includes a cooling pool 10 with a coolant inside, the coolant being water or cooling oil.

[0021] A lifting mechanism 20 and a bracket mechanism 30 are provided on the upper side of the cooling pool 10. The bracket mechanism 30 is located directly above the cooling pool 10. The lifting mechanism 20 drives the bracket mechanism 30 to descend into the inner side of the cooling pool 10.

[0022] Specifically, the lifting mechanism 20 includes a lifting platform 21 and a drive assembly 23. The lifting platform 21 has a downwardly extending insertion frame 22 on one side, and the bracket mechanism 30 includes a tilting frame 31 rotatably mounted on the lower side of the insertion frame 22. Supported by the insertion frame 22, the tilting frame 31 can move with the lifting platform 21 into the cooling tank 10. A clamping assembly for holding the casting is provided on the upper side of the tilting frame 31, which secures the parts to the upper side of the tilting frame 31. The drive assembly 23 drives the tilting frame 31 to tilt, causing the casting fixed on the tilting frame 31 to tilt within the cooling tank 10.

[0023] Furthermore, by controlling the tilting frame 31 to tilt at a preset angle via the drive component 23, the volume of cavitation generated on the surface of the casting held on the tilting frame 31 is reduced when it enters the coolant in the cooling tank 10. This initially reduces the proportion of cavitation on the casting surface and improves the uniformity of cooling. Subsequently, after the casting is completely immersed in the coolant, the tilting frame 31 is rotated within the cooling tank 10 by the drive component 23, causing the casting to rotate within the coolant. This changes the position of the cavitation on the casting surface, causing cavitation originally on the lower side of the casting to rotate to the upper side and be discharged, thereby avoiding the impact of cavitation remaining on the casting surface on the overall cooling effect of the casting.

[0024] In addition, the drive assembly 23 controls the tilting frame 31 to rotate at an angle greater than or equal to 360 degrees, so that cavitation at multiple different locations on the surface of the casting can be effectively removed.

[0025] It is worth mentioning that when the coolant is water, steam will be generated on the contact surface when the high-temperature casting comes into contact with water. When the lower surface of the casting comes into contact with water, the generated steam will also occupy the newly formed depressions on the lower side of the casting, forming cavitation again. Since the tilting frame 31 is in a rotating state in this embodiment, even if new cavitation forms on the surface of the casting, it will travel across the surface of the casting during rotation and be discharged when the casting rotates to the top. This cooling method ensures that the surface of the casting is uniformly cooled during the immersion cooling process, thus ensuring the overall rigidity and dimensional stability of the casting.

[0026] It is worth mentioning that after the lifting mechanism 20 controls the casting to exit the water, it can also control the casting to rotate at least one revolution, thereby draining the coolant remaining on the surface of the casting. Especially when using cooling oil as the coolant, this method can significantly reduce coolant consumption.

[0027] Combination Figures 2 to 4 The clamping assembly includes fastener frames 33 mounted on both sides of the flipping frame 31 and rotatably assembled. A tension spring 331 is provided on one side of the fastener frame 33 to pull the fastener frame 33, and a pressure rod 332 for clamping the castings is provided in the middle of the fastener frame 33. When the tension spring 331 elastically pulls the fastener frame 33, the pressure rod 332 can clamp multiple castings.

[0028] Furthermore, two fastener frames 33 are symmetrically arranged on the tilting frame 31. A pull rope 333 is connected to the lower side of both fastener frames 33, and the lower end of the pull rope 333 is fixedly connected to the bottom of the cooling tank 10. When the tilting frame 31 rises to the top with the lifting mechanism 20, the pull rope 333 can pull the lower end of the fastener frame 33, causing the upper end of the fastener frame 33 to open to both sides, automatically releasing the clamp on the casting and facilitating the loading and unloading of the casting.

[0029] It should be noted that when the pull rope 333 is connected to the fastener frame 33, the drive component 23 controls the flipping frame 31 to be in a periodic forward and reverse rotation state.

[0030] Combination Figures 3 to 5 Furthermore, a support rod 32 is provided on the inner side of the flipping frame 31, and multiple fastener bases 34 are provided on the surface of the support rod 32. The fastener bases 34 are used to elastically support a single casting.

[0031] Specifically, the fastener base 34 includes an elastic part 341 that fits onto the surface of the support rod 32. A drag part 342 is integrally formed on one side of the elastic part 341, and the drag part 342 supports the lower surface of the casting.

[0032] Because the placement angles and orientations of multiple castings on the upper side of the support rod 32 are inconsistent, the clamping of multiple castings by a single pressure rod 332 is not ideal. A secondary clamping and fixing of a single casting is achieved from below using a fastener base 34. This ensures that multiple castings are fixedly clamped while not affecting the process of lifting the pressure rod 332 to simultaneously release multiple castings.

[0033] Furthermore, in combination Figure 5 The drag section 342 is provided with a width to increase the contact area with the casting. The width of the drag section 342 includes, but is not limited to, an integrally formed wavy shape, connecting multiple crossbars, and the provision of shims.

[0034] Combination Figure 6 The tilting frame 31 is rotatably connected to the extension frame 22 via the tilting shaft 311 on one side.

[0035] The drive assembly 23 includes a servo motor, which is mounted on the upper side of the extension frame 22. The extension frame 22 is connected to the tilting shaft 311 through a transmission structure, which includes a sprocket and chain drive structure, a pulley and belt drive structure, etc.

[0036] Working Principle: The lifting mechanism 20 drives the support mechanism 30 and the casting held on it to be immersed in the cooling liquid in the cooling tank 10 for immersion cooling. Before the casting is immersed in the liquid, the drive component 23 controls the tilting frame 31 to tilt at a preset angle, making it easier for air in the pits on the surface of the casting to be discharged during the immersion process, thus initially reducing the volume of air cavities. After the casting is fully immersed in the cooling liquid, the drive component 23 drives the tilting frame 31 to make the casting perform periodic forward and reverse rotation of 360 degrees or more, so that the air cavities on various parts of the casting surface change position with the rotation. When the air cavities rotate to the upper side of the casting, they are automatically discharged. At the same time, newly generated vapor cavities will also travel to the top and be discharged during the rotation, thereby ensuring that the cooling liquid is in full contact with the surface of the casting and achieving uniform cooling.

[0037] After the casting is removed from the water, the tilting frame 31 continues to rotate at least once to use centrifugal force to discharge the coolant remaining on the surface of the casting, reducing coolant consumption. During loading and unloading, the lifting mechanism 20 drives the tilting frame 31 to the top, and the pull rope 333 is pulled by the fixed end at the bottom of the pool to pull the lower end of the fastener frame 33, so that the pressure bar 332 automatically opens and releases the casting, facilitating quick loading and unloading.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cooling device for processing metal castings, characterized in that, include: Cooling pool (10), with coolant inside; A lifting mechanism (20) and a bracket mechanism (30) are provided. The bracket mechanism (30) is located above the cooling pool (10). The lifting mechanism (20) drives the bracket mechanism (30) to descend into the inner side of the cooling pool (10). The bracket mechanism (30) includes a tilting frame (31) rotatably mounted on one side of the lifting mechanism (20). The upper side of the tilting frame (31) is provided with a clamping assembly for clamping the casting. The lifting mechanism (20) includes a drive assembly (23) for driving the tilting frame (31) to tilt. The drive assembly (23) controls the tilting frame (31) to tilt at a preset angle, so that when the casting held on the tilting frame (31) enters the cooling liquid in the cooling pool (10), the volume of the cavitation generated on the surface is reduced. After the casting is completely in the cooling liquid, the drive assembly (23) controls the casting to rotate in the cooling liquid.

2. A cooling device for metal casting processing according to claim 1, characterized in that: The drive assembly (23) controls the tilting frame (31) to rotate at an angle greater than or equal to 360 degrees.

3. A cooling device for metal casting processing according to claim 1, characterized in that: The clamping assembly includes a fastener frame (33) rotatably mounted on both sides of the flipping frame (31), a tension spring (331) for pulling the fastener frame (33) is provided on one side of the fastener frame (33), and a pressure bar (332) for clamping the casting is provided in the middle of the fastener frame (33).

4. A cooling device for metal casting processing according to claim 3, characterized in that: Two fastener frames (33) are symmetrically arranged on the flipping frame (31). The two fastener frames (33) are connected together by a pull rope (333) on their lower sides. The lower end of the pull rope (333) is fixedly connected to the bottom of the cooling pool (10).

5. A cooling device for metal casting processing according to claim 3, characterized in that: The inside of the flipping frame (31) is provided with a support rod (32), and the surface of the support rod (32) is provided with a plurality of fastener bases (34), which are used to elastically support a single casting.

6. A cooling device for metal casting processing according to claim 5, characterized in that: The fastener base (34) includes an elastic part (341) fitted onto the surface of the support rod (32), and a drag part (342) integrally formed on one side of the elastic part (341) supports the lower surface of the casting.

7. A cooling device for metal casting processing according to claim 6, characterized in that: The drag section (342) has a width.

8. A cooling device for metal casting processing according to claim 1, characterized in that: The lifting mechanism (20) also includes a lifting platform (21), on one side of which is a downwardly extending extension frame (22), and the tilting frame (31) is rotatably mounted on the underside of the extension frame (22).

9. A cooling device for metal casting processing according to claim 8, characterized in that: One side of the flipping frame (31) is rotatably connected to the extension frame (22) via a flipping shaft (311); The drive assembly (23) includes a servo motor, which is mounted on the upper side of the extension frame (22), and the extension frame (22) is connected to the flip shaft (311) through a transmission structure.

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