Aluminum alloy casting pore repairing device

Abstract

The utility model discloses an aluminum alloy casting pore repairing device belongs to aluminum alloy casting repairing technical field, the device includes punch pen, and the lower end detachably installed of punch pen has the repairing pen, the repairing pen includes the pen barrel portion with the lower end detachable connection of punch pen, the pen barrel portion one side is provided with the smoothing board for the even repair glue surface, and the pen barrel portion lower extreme is provided with the output component for the output repair glue. The utility model is when using, when starting punch pen, its vibration transmission to the repairing pen, and the staff will output component place in the air hole and daub the repair glue, and vibration makes the output component produce the action similar to stirring. This vibration stirring mode can go into the air hole bottom and narrow gap, and let the bubble that originally hides in these parts show. Compared with the mode that traditional stirring rod stirs, vibration stirring makes the repair glue better fill the air hole, reduces the gap caused by the existence of bubble, and the binding force of repair glue and aluminum alloy casting is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy casting repair technology, and in particular to a device for repairing porosity in aluminum alloy castings. Background Technology

[0002] Repairing aluminum alloy castings is a technique that restores their performance by addressing defects such as porosity, sand holes, cracks, or dimensional deviations that occur during the casting process, through machining, welding, filling, or heat treatment.

[0003] When repairing porosity in aluminum alloy castings, it is necessary to first clean the oil and impurities around the pores to ensure the surface is dry and clean. Use a drill bit of appropriate size to precisely drill open the pores, creating regular holes for easy filling with repair adhesive. Next, select a specialized repair adhesive with good compatibility with aluminum alloys and evenly fill it into the pores, pressing gently as you fill to expel any air that may be inside. After filling, smooth the surface to ensure a smooth transition with the casting surface. The repair adhesive, when exposed to air, will gradually cure and solidify, eventually tightly filling the pores, restoring the structural integrity and smoothness of the casting. Subsequent polishing will then meet usage requirements.

[0004] The shortcomings of the existing technical solutions are as follows: When repairing porosity in aluminum alloy castings, repair personnel typically use cotton swabs or other stirring rods to deliver the repair adhesive into the pores. However, during this process, the internal space of the pores is narrow, and air is easily trapped within the pores or the repair adhesive when the adhesive is delivered by stirring, making it difficult to completely expel. After the repair adhesive solidifies upon contact with air, the residual air inside forms tiny gaps, weakening the bonding force between the repair adhesive and the casting substrate. This results in the repair adhesive easily detaching from the pores when the repaired area is subjected to external impact, affecting the repair effect and the reliability of the casting. Utility Model Content

[0005] This invention provides a device for repairing porosity in aluminum alloy castings, which can solve the problems in the prior art where the internal space of the porosity is narrow, and air is easily trapped in the porosity or repair adhesive when the stirring rod delivers the adhesive, making it difficult to completely expel and affecting the bonding force between the repair adhesive and the aluminum alloy casting.

[0006] A device for repairing porosity in aluminum alloy castings includes a punching pen, a repair pen detachably mounted at the lower end of the punching pen, and a pen barrel detachably connected to the lower end of the punching pen. A smoothing plate for leveling the surface of the repair adhesive is obliquely arranged on one side of the pen barrel, and an output component for dispensing the repair adhesive is provided at the lower end of the pen barrel.

[0007] As a further embodiment of this utility model: the output component includes a partition fixedly disposed inside the lower end of the pen holder, a conveying cylinder fixedly disposed at the bottom of the partition, a fixing plate fixedly disposed at the lower end of the conveying cylinder, a piston plate slidably fitted inside the conveying cylinder, an output pen core slidably fitted with the fixing plate fixedly disposed at the lower end of the piston plate, a conveying hole for distributing repair glue is provided on the fixing plate, an elastic component is disposed between the partition and the piston plate, and a conveying pipe is connected to the conveying cylinder.

[0008] As a further embodiment of this utility model: the pen holder is threadedly connected to the lower end of the perforated pen.

[0009] As a further embodiment of this utility model: the lower end of the punching pen is provided with smooth gripping parts on the left and right sides, and the lower end of the punching pen is provided with spiral protrusions on the front and rear sides for threaded connection with the pen barrel, wherein the spiral protrusions are threaded parts.

[0010] As a further embodiment of this invention: the elastic component includes a spring that is fitted between the partition plate and the piston plate.

[0011] As a further embodiment of this utility model: a one-way valve is provided at the end of the conveying pipe, and a connecting pipe that is detachably connected to the conveying pipe extends outward from the conveying cylinder.

[0012] As a further embodiment of this utility model, the lower end of the output pen tip is tapered.

[0013] As a further embodiment of this utility model: the lower end of the flat surface is provided with a squeegee extending to one side.

[0014] As a further embodiment of this utility model, the squeegee is made of flexible rubber.

[0015] As a further embodiment of this invention, a flow regulating component is provided on the conveying pipe.

[0016] The beneficial effects of this utility model are:

[0017] 1. In use, the piston plate slides within the delivery cylinder to draw in and output the repair adhesive. A spring provides power for the piston plate to return to its original position, facilitating the delivery of the repair adhesive into the pores. When the punching pen is activated, its vibration is transmitted to the repair pen. When the worker places the output component into the pore to apply the repair adhesive, the vibration causes the output component to produce a stirring-like action. This vibration stirring method can penetrate deep into the bottom of the pores and narrow gaps, exposing air bubbles that were originally hidden in these areas. Compared to the traditional stirring method with a stirring rod, vibration stirring promotes better filling of the pores with the repair adhesive, reduces gaps caused by air bubbles, and enhances the bonding force between the repair adhesive and the aluminum alloy casting.

[0018] 2. In use, after the repair adhesive is filled into the pores of the aluminum alloy casting, the flexible rubber squeegee, with its toughness and elasticity, can closely adhere to the surface of the aluminum alloy casting. When the worker uses the squeegee to scrape the surface of the repair adhesive, excess adhesive can be precisely scraped away, ensuring a perfect fit between the repair adhesive surface and the surface of the aluminum alloy casting. This guarantees the smoothness of the repaired surface. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of an aluminum alloy casting porosity repair device provided by this utility model;

[0020] Figure 2 A schematic diagram of a punching pen structure for a porosity repair device for aluminum alloy castings provided by this utility model;

[0021] Figure 3 A schematic diagram of the flat plate structure of the aluminum alloy casting porosity repair device provided by this utility model;

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Punching pen; 101. Threaded part; 102. Grip part; 2. Repair pen; 201. Pen holder part; 202. Smoothing plate; 203. Output part; 2031. Partition plate; 2032. Conveying cylinder; 2033. Fixing plate; 20331. Conveying hole; 2034. Output pen core; 2035. Piston plate; 2036. Spring; 2037. Conveying tube. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0026] like Figures 1 to 4 As shown in the figure, an embodiment of this utility model provides a device for repairing porosity in aluminum alloy castings, including a punching pen 1, with a repair pen 2 detachably mounted on the lower end of the punching pen 1. The repair pen 2 is composed of multiple parts, including a pen barrel portion 201 detachably connected to the lower end of the punching pen 1. A smoothing plate 202 for leveling the surface of the repair adhesive is obliquely arranged on one side of the pen barrel portion 201. Figure 3 As shown, the smoothing plate 202 can be used to smooth the surface of the repair adhesive applied to the pores of the aluminum alloy casting. An output component 203 for dispensing the repair adhesive is provided at the lower end of the pen holder 201.

[0027] In practice, workers use a punching pen 1 to enlarge the openings of all small pores on the aluminum alloy casting. After punching, the pen holder 201 is installed at the lower end of the punching pen 1. Next, the output component 203 delivers repair adhesive into the pores. The punching pen 1 vibrates upon activation, and this vibration is transmitted to the repair pen 2. When applying the repair adhesive, the worker can place the output component 203 inside the pore, holding the pen body from one side. The vibration of the punching pen 1 creates a stirring-like effect. This vibration-stirring method allows air bubbles at the bottom of the pores or in other narrow gaps to surface, facilitating subsequent air bubble removal and improving repair quality. Finally, a smoothing plate 202 is used to scrape the repair adhesive surface, ensuring it conforms to the aluminum alloy casting and guaranteeing a smooth repaired surface.

[0028] Specifically, the output component 203 includes a partition 2031 fixedly disposed inside the lower end of the pen holder 201. A conveying cylinder 2032 is fixedly disposed at the bottom of the partition 2031. A conveying pipe 2037 for inputting repair adhesive is disposed on the conveying cylinder 2032, and the conveying pipe 2037 inputs the repair adhesive into the conveying cylinder 2032. A fixing plate 2033 is fixedly disposed at the lower end of the conveying cylinder 2032, and the fixing plate 2033, the conveying cylinder 2032, and the partition 2031 form a chamber. A piston plate 2035 is slidably fitted inside the conveying cylinder 2032. The sliding movement of the piston plate 2035 within the conveying cylinder 2032 realizes the action of drawing in and outputting the repair adhesive. An output pen core 2034 is fixedly disposed at the lower end of the piston plate 2035, which slidably fits with the fixing plate 2033, and the output pen core 2034 directly contacts the repair point. The fixed plate 2033 has a delivery hole 20331 for discharging repair adhesive. The repair adhesive is delivered into the air hole through this delivery hole 20331. The diameter of the delivery hole 20331 must not exceed 2mm, so that when the piston plate 2035 is stationary, the repair adhesive will not flow out of the delivery hole 20331 under the negative pressure environment and its own tension, but can only be squeezed out of the delivery hole 20331 by the compression of the piston plate 2035. A spring 2036 is provided between the partition plate 2031 and the piston plate 2035, and the spring 2036 provides power for the piston plate 2035 to return to its original position.

[0029] During use, the operator presses the punch pen 1, causing the air hole to squeeze out the pen core 2034. The output pen core 2034 pushes the piston plate 2035 upward, creating a negative pressure inside the delivery cylinder 2032, which draws the repair adhesive into the delivery cylinder 2032. Releasing the pen core causes the spring 2036 to push the piston plate 2035 to a position close to the fixed plate 2033, outputting the repair adhesive through the delivery hole 20331. Simultaneously, the piston plate 2035 blocks the repair adhesive inlet during its movement to prevent backflow. Furthermore, the repair adhesive preferably uses HN-213 slow-curing aluminum repair agent. After the main adhesive and curing adhesive are mixed evenly in a 3:1 ratio, the mixture is injected into a cavity. This cavity delivers the repair adhesive into the delivery cylinder 2032 through the delivery pipe 2037, ensuring a continuous and stable supply of repair adhesive.

[0030] In another embodiment, to further optimize device performance, a one-way valve can be installed on the delivery pipe 2037. The function of the one-way valve is to prevent backflow of the repair adhesive, ensuring that the repair adhesive flows only from the supply chamber to the delivery cylinder 2032 in a set direction, preventing waste and unstable delivery caused by backflow. The delivery pipe 2037 is made of rubber hose, and a flow regulation component, such as a flow rate regulator, can be installed on it. By squeezing the rubber hose, the inner diameter of the hose is changed, thereby changing the flow rate. Operators can flexibly adjust the output flow rate of the repair adhesive according to actual repair needs.

[0031] It is important to note that the repair adhesive should not come into contact with air during the entire repair process, as this may cause it to solidify prematurely, affecting the repair results. If the repair adhesive has solidified, it can be soaked in a 10%-15% acetone thinner. Acetone thinner can dissolve the semi-solidified repair adhesive, making it easier to clean.

[0032] After the repair operation is completed, the output component 203 will be covered with a lot of repair adhesive. After the output component 203 has expelled as much adhesive as possible, it needs to be soaked in a solution of 10%-15% acetone thinner. This facilitates cleaning for future use and ensures the normal operation and output accuracy of the output component 203. At this point, the pen holder 201 needs to be detached from the punching pen 1. The lower end of the punching pen 1 has smooth gripping parts 102 on both sides. Operators can hold the gripping parts 102 to stabilize the punching pen 1, improving operational convenience and stability. The lower end of the punching pen 1 has spiral protrusions on both the front and rear sides for threaded connection with the pen holder 201. These spiral protrusions are the threaded parts 101. The threaded connection facilitates the installation and removal of the punching pen 1 from the pen holder 201, making maintenance and component replacement easier.

[0033] The lower end of the output pen tip 2034 is tapered. This tapered design allows the tip to penetrate deep into the bottom of the air vents, enabling better contact with the repair adhesive and air bubbles at the bottom of the air vents during stirring, facilitating thorough mixing and making it easier to remove air bubbles. The lower end of the smoothing plate 202 has a squeegee extending to one side. The squeegee is made of flexible rubber. Figure 3 As shown, after the repair agent is filled, the flexible rubber trowel has a certain degree of flexibility and elasticity, which can better fit the surface of the aluminum alloy casting. Using the trowel, excess repair agent can be scraped out cleanly, so that the repair agent filling surface and the aluminum alloy casting surface are compatible with each other, further improving the repair quality.

[0034] Working principle: The worker first uses a punching pen 1 to enlarge the openings of all small pores on the aluminum alloy casting. This allows the repair pen 2 to enter the pores more smoothly, and also facilitates the full filling of the repair adhesive and the removal of air bubbles.

[0035] After the punching operation is completed, the pen holder 201 is threaded onto the lower end of the punching pen 1. When the worker presses the punching pen 1, the air hole will compress the output pen core 2034. The compressed output pen core 2034 pushes the piston plate 2035 upwards, creating a negative pressure inside the delivery cylinder 2032. Under this negative pressure, the repair adhesive is drawn into the delivery cylinder 2032. When the pen core is released, the spring 2036 pushes the piston plate 2035 to a position close to the fixed plate 2033, outputting the repair adhesive from the delivery cylinder 2032 through the delivery hole 20331 on the fixed plate 2033 into the air hole. Simultaneously, the piston plate 2035 blocks the repair adhesive inlet during its movement, preventing backflow and ensuring accurate and effective delivery of the repair adhesive into the air hole.

[0036] After the punching pen 1 is activated, its vibration is transmitted to the repair pen 2. When applying the repair adhesive, the worker places the output component 203 inside the pore and holds the pen body from one side. With the vibration of the punching pen 1, the output component 203 achieves a stirring-like effect within the pore. This vibration stirring method allows air bubbles at the bottom of the pore and in other narrow gaps to surface. Because the internal space of the pore is narrow, conventional stirring methods struggle to reach these areas, but vibration stirring overcomes this problem, allowing air bubbles to separate from the repair adhesive and the pore walls, facilitating subsequent bubble removal and improving the adhesion between the repair adhesive and the aluminum alloy casting, thus ensuring repair quality.

[0037] After the repair adhesive is filled into the pores, it is scraped across the surface of the adhesive using a smoothing plate 202. The lower end of the smoothing plate 202 has a flexible rubber smear extending to one side. This flexible rubber material has a certain degree of flexibility and elasticity, allowing it to better conform to the surface of the aluminum alloy casting. Using the smear, excess repair adhesive can be scraped away, ensuring a proper fit between the adhesive surface and the aluminum alloy casting surface, guaranteeing a smooth surface after repair, and further improving the repair quality.

[0038] After the repair operation is completed, if the output component 203 has a lot of repair adhesive stuck to it, affecting the next use, the output component 203 can be soaked in 10%-15% acetone thinner to remove as much of the repair adhesive as possible, thus facilitating the cleaning of the repair adhesive.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A device for repairing porosity in aluminum alloy castings, comprising a punch pen (1), characterized in that, The lower end of the punching pen (1) is detachably equipped with a repair pen (2). The repair pen (2) includes a pen barrel (201) detachably connected to the lower end of the punching pen (1). A smoothing plate (202) for smoothing the surface of the repair adhesive is obliquely arranged on one side of the pen barrel (201). An output component (203) for dispensing the repair adhesive is provided at the lower end of the pen barrel (201).

2. The device for repairing porosity in aluminum alloy castings as described in claim 1, characterized in that, The output component (203) includes a partition (2031) fixedly disposed inside the lower end of the pen holder (201). A conveying cylinder (2032) is fixedly disposed at the bottom of the partition (2031). A fixing plate (2033) is fixedly disposed at the lower end of the conveying cylinder (2032). A piston plate (2035) is slidably fitted inside the conveying cylinder (2032). An output pen core (2034) is fixedly disposed at the lower end of the piston plate (2035) and slidably fitted with the fixing plate (2033). A conveying hole (20331) for distributing repair glue is opened on the fixing plate (2033). An elastic component is disposed between the partition (2031) and the piston plate (2035). The conveying cylinder (2032) is connected to a conveying pipe (2037).

3. The device for repairing porosity in aluminum alloy castings as described in claim 1 or 2, characterized in that, The pen holder (201) is threadedly connected to the lower end of the punch pen (1).

4. The device for repairing porosity in aluminum alloy castings as described in claim 3, characterized in that, The lower end of the punching pen (1) is provided with a smooth gripping part (102) on the left and right sides. The lower end of the punching pen (1) is provided with a spiral protrusion on the front and rear sides for threaded connection with the pen barrel part (201). The spiral protrusion is the threaded part (101).

5. The device for repairing porosity in aluminum alloy castings as described in claim 2, characterized in that, The elastic component includes a spring (2036) that is disposed between the partition plate (2031) and the piston plate (2035).

6. A device for repairing porosity in aluminum alloy castings as described in claim 2 or 5, characterized in that, The end of the conveying pipe (2037) is provided with a one-way valve, and the conveying cylinder (2032) extends outward to form a connecting pipe that is detachably connected to the conveying pipe (2037).

7. A device for repairing porosity in aluminum alloy castings as described in claim 2 or 5, characterized in that, The lower end of the output pen core (2034) is tapered.

8. The device for repairing porosity in aluminum alloy castings as described in claim 7, characterized in that, The lower end of the flat surface (202) is provided with a trowel extending to one side.

9. The device for repairing porosity in aluminum alloy castings as described in claim 8, characterized in that, The squeegee is made of flexible rubber.

10. The device for repairing porosity in aluminum alloy castings as described in claim 6, characterized in that, The delivery pipe (2037) is equipped with a flow regulation component.

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