CN217018536U - Tool for reducing leakage rate of bolt hole position of casting - Google Patents
Tool for reducing leakage rate of bolt hole position of casting Download PDFInfo
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- CN217018536U CN217018536U CN202220130948.9U CN202220130948U CN217018536U CN 217018536 U CN217018536 U CN 217018536U CN 202220130948 U CN202220130948 U CN 202220130948U CN 217018536 U CN217018536 U CN 217018536U
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- cold iron
- iron ring
- casting
- leakage
- fixing part
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Abstract
The utility model belongs to the technical field of casting manufacturing tools, and particularly relates to a tool for reducing the leakage rate of a casting bolt hole position, which solves the problem that processing factories complain about high leakage rate of a casting caused by batch leakage due to pressure relief of the casting when the casting is pressed after being processed and pressure relief at the bolt hole position is found. The utility model comprises a cold iron ring and a fixing part; the cold iron ring is of an arc thin-wall structure, the shape of the cold iron ring is consistent with that of the leakage region, the thickness of the cold iron ring is 0.5-1mm, and the area of the cold iron ring is 10 times that of the leakage region; the fixing part is fixed at one end of the cold iron ring and is arranged on the arc-shaped outer side of the cold iron ring, and the cold iron ring is fixed on the water jacket core of the sand core through the fixing part. The utility model has the function of chilling on one hand, and forms a compact protective layer at the leakage position after melting on the other hand, thereby solving the leakage problem, improving the yield and being convenient for batch production.
Description
Technical Field
The utility model belongs to the technical field of casting manufacturing tools, and particularly relates to a tool for reducing the leakage rate of a casting at a bolt hole position.
Background
Sand casting is a casting method for producing castings in sand molds, and the casting molds used for sand casting are generally formed by combining an outer sand mold and a sand core. The liquid metal can cause certain impact on the sand core in the mold filling process, so that the strength of the sand core is ensured.
After the casting is machined, the casting is pressed, pressure is released at the position of a bolt hole, batch leakage occurs (as shown in figure 1), the leakage rate of the casting is high, and processing factories complain about the leakage rate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tool for reducing the leakage rate of a casting at a bolt hole position, aiming at solving the problem of high leakage rate at the bolt hole position of the casting.
The utility model is realized by adopting the following technical scheme: a tool for reducing the leakage rate of a casting at a bolt hole position comprises a cold iron ring 1 and a fixing part 2;
the cold iron ring 1 is of an arc-shaped thin-wall structure, the shape of the cold iron ring 1 is consistent with that of the leakage area 3, the thickness of the cold iron ring 1 is 0.5-1mm, and the area of the cold iron ring 1 is 10 times that of the leakage area 3;
the fixing part 2 is fixed at one end of the cold iron ring 1 and is arranged on the arc-shaped outer side of the cold iron ring 1, and the cold iron ring 1 is fixed on the water jacket core 4 of the sand core through the fixing part 2.
Further, the cold iron ring 1 is made of cold iron materials.
Further, fixed part 2 is L shape structure, and fixed part 2 includes horizontal pole and montant, and the horizontal pole is fixed on cold iron ring 1, and the montant is fixed on the horizontal pole, and the montant clamps in water jacket core 4.
Furthermore, the free end of the vertical rod of the fixing part 2 is provided with an outward arc chamfer 4.
Furthermore, the thickness of the vertical rod and the horizontal rod of the fixing part 2 is 1 mm.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a chilling block circle passes through the fixed part to be fixed on the water jacket core, and chilling block circle hugs closely and lets out the leakage area and follow the shape with letting out the leakage area, plays the chilling effect on the one hand, and on the other hand is that the melting back forms fine and close protective layer in the leakage position, solves the seepage problem, improves the yield, the batch production of being convenient for.
Drawings
FIG. 1 is a schematic view of a leakage area;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the present invention mounted on a water jacket core 2;
FIG. 4 is a schematic view of the present invention mounted on a water jacket core 2;
in the figure: 1-cold iron ring, 2-fixed part, 3-leakage area, 4-water jacket core, 5-arc chamfer.
Detailed Description
The following description is given for illustrative embodiments of the utility model and other advantages and benefits of the utility model will become apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings and attached to the description are only for understanding and reading the disclosure of the present invention, and are not intended to limit the practical conditions of the present invention, so that the present invention has no technical significance, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
Referring to fig. 2, the present invention provides a technical solution: a tool for reducing the leakage rate of a casting at a bolt hole position comprises a cold iron ring 1 and a fixing part 2;
the cold iron ring 1 is of an arc-shaped thin-wall structure, the shape of the cold iron ring 1 is consistent with that of the leakage area 3, the thickness of the cold iron ring 1 is 0.5-1mm, and the area of the cold iron ring 1 is 10 times that of the leakage area 3;
the fixing part 2 is fixed at one end of the cold iron ring 1 and arranged on the arc-shaped outer side of the cold iron ring 1, and the cold iron ring 1 is fixed on a water jacket core 4 of the sand core through the fixing part 2.
The cold iron ring 1 is made of cold iron materials.
The fixing part 2 is of an L-shaped structure, the fixing part 2 comprises a cross rod and a vertical rod, the cross rod is fixed on the cold iron ring 1, the vertical rod is fixed on the cross rod, the vertical rod is clamped in the water jacket core 4, and the inner wall of the vertical rod is tightly attached to the inner wall of the water jacket core 4 so as to be fastened (as shown in figures 3-4).
The free end of the vertical rod of the fixing part 2 is provided with an outward arc chamfer 5, so that the sand core is prevented from being scraped when the vertical rod is clamped on the water jacket core 4.
The thickness of the vertical rod and the horizontal rod of the fixing part 2 is 1mm, so that the included angle between the vertical rod and the horizontal rod can be conveniently adjusted, and the fixing is more stable.
According to the method, a sand core structure at the position is utilized, a cold iron ring matched with the leakage area in shape is designed in the leakage area, and on one hand, the cold iron is chilled to prevent the formation of shrinkage porosity; on the other hand, a compact structure is formed at the position after the chilling block is melted, so that the leakage of the casting is prevented, and the function of the casting is guaranteed.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides a reduce foundry goods bolt hole position leakage rate's instrument which characterized in that: comprises a cold iron ring (1) and a fixed part (2);
the cold iron ring (1) is of an arc-shaped thin-wall structure, the shape of the cold iron ring (1) is consistent with that of the leakage area (3), the thickness of the cold iron ring (1) is 0.5-1mm, and the area of the cold iron ring (1) is 10 times that of the leakage area (3);
the fixing part (2) is fixed at one end of the cold iron ring (1) and arranged on the arc-shaped outer side of the cold iron ring (1), and the cold iron ring (1) is fixed on the water jacket core (4) of the sand core through the fixing part (2).
2. The tool for reducing the leakage rate of the bolt hole position of the casting according to claim 1, wherein the tool comprises: the cold iron ring (1) is made of cold iron materials.
3. The tool for reducing the leakage rate of the bolt hole position of the casting according to claim 2, wherein the tool comprises: the fixing part (2) is of an L-shaped structure, the fixing part (2) comprises a cross rod and a vertical rod, the cross rod is fixed on the cold iron ring (1), the vertical rod is fixed on the cross rod, and the vertical rod is clamped in the water jacket core (4).
4. The tool for reducing the leakage rate of the bolt hole position of the casting according to claim 3, wherein the tool comprises: the free end of the vertical rod of the fixing part (2) is provided with an outward arc chamfer (5).
5. The tool for reducing the leakage rate of the bolt hole position of the casting according to claim 4, wherein the tool comprises: the thickness of the vertical rod and the cross rod of the fixing part (2) is 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220130948.9U CN217018536U (en) | 2022-01-19 | 2022-01-19 | Tool for reducing leakage rate of bolt hole position of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220130948.9U CN217018536U (en) | 2022-01-19 | 2022-01-19 | Tool for reducing leakage rate of bolt hole position of casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217018536U true CN217018536U (en) | 2022-07-22 |
Family
ID=82449554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220130948.9U Active CN217018536U (en) | 2022-01-19 | 2022-01-19 | Tool for reducing leakage rate of bolt hole position of casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217018536U (en) |
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2022
- 2022-01-19 CN CN202220130948.9U patent/CN217018536U/en active Active
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