CN211888887U - Metal mold for casting cup-shaped piece - Google Patents
Metal mold for casting cup-shaped piece Download PDFInfo
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- CN211888887U CN211888887U CN202020244326.XU CN202020244326U CN211888887U CN 211888887 U CN211888887 U CN 211888887U CN 202020244326 U CN202020244326 U CN 202020244326U CN 211888887 U CN211888887 U CN 211888887U
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Abstract
The utility model discloses a metal mold for casting a cup-shaped part, which comprises an outer mold, an inner mold, a pouring gate and a connecting plate, wherein the outer mold is provided with the pouring gate and a circular groove, and the bottom of the pouring gate is communicated with the bottom of the groove; the bottom of the outer mold is provided with a water cooling channel, heating grooves for mounting heating devices are arranged on the outer mold close to the two side faces, and the connecting plate is fixed on the outer mold and positioned right above the groove; the inner mold is positioned in the groove of the outer mold, the groove and the inner mold form a cup-shaped piece casting cavity gap, and the inner mold is installed on the connecting plate. The utility model has simple design principle and simple and convenient manufacturing process; the utility model is provided with the water cooling channel, after the alloy liquid is poured into the die, the rapid water cooling can be realized, the alloy crystal grains are refined, and the mechanical property of the casting can be improved; and the utility model discloses can easily realize the part drawing of patterns.
Description
Technical Field
The utility model relates to a metal mould, in particular to metal mould is used in cup casting.
Background
In the fields of automobiles, aerospace, national defense war industry and the like, along with the improvement of the lightweight level of novel equipment and the improvement of service indexes, the demand on high-performance cup-shaped parts is more and more urgent. At present, the cup-shaped piece is formed by two main processes, namely 1) machining. The solid bar is processed and formed by a machine tool. The method has the defects of low material utilization rate and high production cost, and can not meet the requirement of mass production. 2) Hot extrusion → ironing process. The method adopts a bar stock, then adopts a hot extrusion process to extrude the bar stock into a cup-shaped blank, and finally adopts a thinning and deep drawing process to draw and deep into a cup-shaped piece with thick bottom and thin wall. The method puts forward higher requirements on the strength and the fatigue life of the die, and when the hot extrusion die works for a long time in the environment of high temperature, high pressure and local stress concentration, the stress distribution in the die is very easy to be uneven and the die is easy to break and lose efficacy. The failure of the hot extrusion die seriously hinders the batch production of factories, so that the economic benefit is greatly reduced. If the metal mold is adopted to cast the cup-shaped piece, the production efficiency can be greatly improved while the excellent performance of the product is ensured. However, the existing metal casting mold is unreasonable in structural design, and a cup-shaped casting mold is few, so that the mold is easy to adhere to solidified metal during disassembly, the disassembly is inconvenient, and the existing metal casting mold is complex in processing technology and high in cost. Therefore, it is highly desirable to develop a metal mold for casting a cup which is easily released from the mold.
SUMMERY OF THE UTILITY MODEL
In order to solve the difficult problem of metal mold casting cup, the utility model provides a simple structure, the drawing of patterns of being convenient for can make cup processing technology simple, reduce the metal mould for cup casting of cup processing cost.
The technical scheme of the utility model is that: a metal mold for casting a cup-shaped part comprises an outer mold, an inner mold, a pouring gate and a connecting plate, wherein the outer mold is provided with the pouring gate and a circular groove, and the bottom of the pouring gate is communicated with the bottom of the groove; the bottom of the outer mold is provided with a water cooling channel, heating grooves for mounting heating devices are arranged on the outer mold close to the two side faces, and the connecting plate is fixed on the outer mold and positioned right above the groove; the inner mold is positioned in a groove of the outer mold, the inner mold is installed on the connecting plate, and the groove and the inner mold form a cup-shaped piece casting cavity gap.
In the metal mold for casting the cup-shaped piece, the inner mold comprises five inner mold sections and a disc base, the inner arc length of one of the five inner mold sections is greater than the outer arc length, and the five inner mold sections are spliced into a cylindrical structure; the top parts of the five inner mould sections are respectively provided with a threaded hole, and the five inner mould sections are respectively connected with the connecting plate through screws; the bottom of the five inner mould halves forms a bottom hole, the diameter of the bottom hole is smaller than the inner diameter of the cylindrical structure, and the disc base is matched with the bottom hole.
In the metal mold for casting the cup-shaped part, the outer mold is formed by connecting two outer mold halves, and the center line of the pouring gate and the center line of the groove are positioned on the splicing surfaces of the two outer mold halves.
In the metal mold for casting the cup-shaped piece, two inner mold sections with inner arcs and outer arcs of 90 degrees, two inner mold sections with outer arcs of 80 degrees and inner arcs of 60 degrees and one inner mold section with inner arcs of 60 degrees and outer arcs of 20 degrees are selected from the five inner mold sections.
In the metal mold for casting the cup-shaped part, the top of the outer mold is provided with a plurality of threaded holes, the plurality of threaded holes are arranged close to the grooves, and the outer mold is connected with the connecting plate through screws.
In the metal mold for casting the cup-shaped piece, the disc base is a stepped shaft, and the diameter of the lower part of the disc base is smaller than that of the upper part of the disc base; the lower part of the disc base is matched with a bottom hole of the cylindrical structure.
In the above cup-shaped casting mold, the inner mold half has an L-shaped longitudinal section.
The beneficial effects of the utility model reside in that:
1. the utility model has simple design principle and simple and easy manufacturing process; the processing cost of the cup-shaped piece is reduced;
2. the outer mold of the utility model is provided with a heating groove for installing a heating device, the mold can be heated by a heating pipe before casting, the temperature of the mold is raised, and the alloy melt is prevented from being solidified too early in the casting process;
3. the bottom of the external mold of the utility model is provided with a water cooling device, after the alloy liquid is poured into the mold, the rapid water cooling can be realized, the alloy crystal grains are refined, and the mechanical property of the casting is improved;
4. the utility model discloses an centre form is installed on the connecting plate at external mold top, and the accurate control of cup piece wall thickness can be realized through the position of centre form and external mold screw hole on the connecting plate, and the accurate control of cup piece bottom plate thickness can be realized through the unsettled height of centre form.
5. The utility model discloses an centre form is formed by five interior mould lamella amalgamations, and one of them interior mould lamella inner arc length is greater than outer arc length, can easily realize the drawing of patterns of part through the interior mould lamella that interior arc length is greater than outer arc length of preferential dismantlement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a top view of fig. 1 with the connecting plate and bolts removed.
Fig. 4 is a top view of the connection plate of the present invention.
Fig. 5 is a left side view of the inner mold bottom plate of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the utility model discloses an external mold 1, centre form 3, water 6, water-cooling channel 10, heating groove 9, connecting plate 4 and bolt 5, be equipped with on the external mold 1 and water 6 and circular shape recess 7, water 6 bottom and recess 7 bottom and pass through connecting channel 8 intercommunication, external mold 1 bottom is equipped with water-cooling channel 10, water-cooling channel 10 is located waters 6 and recess 7 below, be close to the both sides face and be equipped with 16 heating grooves 9 that are used for installing heating device on the external mold 1, external mold 1 top is equipped with five screw holes 12, five screw holes 12 are close to the recess 7 setting for positioning connection plate 4, and then the centre form 3 of location. The connecting plate 4 is fixed on the outer die 1 through screws and is positioned right above the groove 7. The outer die 1 is formed by connecting two outer die halves, and the center line of the pouring channel 6 and the center line of the groove 7 are positioned on the splicing surfaces of the two outer die halves.
The inner die 3 is arranged in the groove 7 and forms a casting cavity gap of the cup-shaped piece together with the groove 7. The inner mold 3 comprises five inner mold sections and a disc base 2, wherein two inner arcs and two outer arcs of the five inner mold sections are the inner mold sections of 90 degrees, the two outer arcs are the inner mold sections of 80 degrees, the inner arcs are 60 degrees, and the inner arcs are the inner mold sections of 60 degrees, the outer arcs are 20 degrees (the inner arc length of the inner mold sections is greater than the outer arc length). The top parts of the five inner mould sections are respectively provided with a threaded hole 11, the top parts of the inner mould sections are fixed on the connecting plate 4 through screws, and the five inner mould sections are spliced into a cylindrical structure. The longitudinal section of the inner mould section is L-shaped, so that the diameter of the bottom hole of the cylindrical structure is smaller than the inner diameter of the cylindrical structure. As shown in fig. 5, the disc base 2 is a stepped shaft, and the diameter of the lower part is smaller than that of the upper part; the lower part of the disc base 2 is matched with the bottom hole.
The utility model discloses set up water-cooling passageway 10 bottom the mould, after the mould was poured into to the molten metal liquid, use the water-cooling passageway 10 of having connected the water pipe in advance at once to carry out the water-cooling and handle, reach quick refrigerated effect to refine the crystalline grain and promote casting performance.
The working principle of the utility model is as follows: the method comprises the steps of firstly combining five inner mold sections into a cylindrical structure, putting a bottom disc 2 into a bottom hole of the cylindrical structure, fixing the inner mold sections by using a connecting plate 4 and bolts 5, then combining two outer mold sections and fixing by using bolts, aligning five screw holes in the connecting plate 4 with five threaded holes 12 in an outer mold 1 and connecting by using the bolts 5. After the die is assembled, the heating pipe is installed in a heating groove 9 on the die, the die is heated to a certain time, the heating pipe is taken out and immediately cast, after molten metal is completely poured into the die, water cooling treatment is immediately carried out by using a water cooling channel 10 which is connected with the water pipe in advance, the effect of rapid cooling is achieved, and therefore crystal grains are refined and the casting performance is improved.
Claims (7)
1. A metal mold for casting a cup-shaped member, characterized in that: the device comprises an outer die, an inner die, a pouring gate and a connecting plate, wherein the outer die is provided with the pouring gate and a circular groove, and the bottom of the pouring gate is communicated with the bottom of the groove; the bottom of the outer mold is provided with a water cooling channel, heating grooves for mounting heating devices are arranged on the outer mold close to the two side faces, and the connecting plate is fixed on the outer mold and positioned right above the groove; the inner mold is positioned in the groove of the outer mold, the inner mold is installed on the connecting plate, and a cup-shaped piece casting cavity gap is formed between the groove and the inner mold.
2. The metal mold for casting a cup-shaped member according to claim 1, wherein: the inner mold comprises five inner mold sections and a disc base, the inner arc length of one of the five inner mold sections is greater than the outer arc length, and the five inner mold sections are spliced into a cylindrical structure; the top parts of the five inner mould sections are respectively provided with a threaded hole, and the five inner mould sections are respectively connected with the connecting plate through screws; the bottom of the five inner mould halves forms a bottom hole, the diameter of the bottom hole is smaller than the inner diameter of the cylindrical structure, and the disc base is placed at the bottom hole and matched with the bottom hole.
3. The metal mold for casting a cup-shaped member according to claim 1 or 2, wherein: the outer mold is formed by connecting two outer mold halves, and the center line of the pouring channel and the center line of the groove are positioned on the splicing surfaces of the two outer mold halves.
4. The metal mold for casting a cup-shaped member according to claim 2, wherein: of the five inner mold sections, two inner and outer arcs are 90-degree inner mold sections, two inner mold sections with 80-degree outer arcs and 60-degree inner arcs, and one inner mold section with 60-degree outer arcs and 20-degree inner arcs.
5. The metal mold for casting a cup-shaped member according to claim 1, wherein: the top of the outer die is provided with a plurality of threaded holes which are arranged close to the grooves, and the outer die is connected with the connecting plate through screws.
6. The metal mold for casting a cup-shaped member according to claim 2, wherein: the disc base is a stepped shaft, and the diameter of the lower part of the disc base is smaller than that of the upper part of the disc base; the lower part of the disc base is matched with a bottom hole of the cylindrical structure.
7. The metal mold for casting a cup-shaped member according to claim 2, wherein: the longitudinal section of the inner mould half is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020244326.XU CN211888887U (en) | 2020-03-03 | 2020-03-03 | Metal mold for casting cup-shaped piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020244326.XU CN211888887U (en) | 2020-03-03 | 2020-03-03 | Metal mold for casting cup-shaped piece |
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| Publication Number | Publication Date |
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| CN211888887U true CN211888887U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020244326.XU Active CN211888887U (en) | 2020-03-03 | 2020-03-03 | Metal mold for casting cup-shaped piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496277A (en) * | 2020-11-30 | 2021-03-16 | 南京想家贸易有限公司 | Centrifugal pump shell casting process |
| CN113560497A (en) * | 2021-06-18 | 2021-10-29 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
-
2020
- 2020-03-03 CN CN202020244326.XU patent/CN211888887U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496277A (en) * | 2020-11-30 | 2021-03-16 | 南京想家贸易有限公司 | Centrifugal pump shell casting process |
| CN113560497A (en) * | 2021-06-18 | 2021-10-29 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
| CN113560497B (en) * | 2021-06-18 | 2023-02-24 | 洛阳双瑞精铸钛业有限公司 | Low-cost high-efficiency manufacturing method of thin-wall titanium alloy casting |
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