CN110947907A - Automobile cylinder cover die - Google Patents
Automobile cylinder cover die Download PDFInfo
- Publication number
- CN110947907A CN110947907A CN201911332309.XA CN201911332309A CN110947907A CN 110947907 A CN110947907 A CN 110947907A CN 201911332309 A CN201911332309 A CN 201911332309A CN 110947907 A CN110947907 A CN 110947907A
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- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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Abstract
The invention provides an automobile cylinder cover die which comprises a base, a die body, a reinforcing module, a material ejecting mechanism, a negative pressure exhaust system and a cooling system, wherein the reinforcing module is arranged on the base; the reinforcing module is fixed on the base and positioned outside the die body and used for clamping the die body; the pouring gate is used for pouring liquid metal and extends to the bottom of the molding cavity through the runner; the ejection mechanism is positioned at the lower end of the base and used for ejecting the formed cylinder cover upwards from the forming cavity; the negative pressure exhaust system is communicated with the forming cavity and is used for exhausting gas in the forming cavity during casting; and the cooling system is positioned in the die body and used for cooling the forming cavity. The automobile cylinder cover die is convenient and quick to assemble, high in assembling precision, low in manufacturing cost, high in quality and stability of cast products, greatly improves production efficiency, and reduces production cost.
Description
Technical Field
The invention relates to a die, in particular to an automobile cylinder cover die.
Background
The cylinder cover of the automobile has the functions of sealing the cylinder, forming a combustion space together with the piston and bearing high-temperature and high-pressure fuel gas. The cylinder head is subjected to mechanical loads caused by gas forces and tightening of the cylinder bolts, and also to high thermal loads due to contact with the hot gases. In order to ensure a good sealing of the cylinder, the cylinder head can neither be damaged nor deformed. For this reason, the cylinder head should have sufficient strength and rigidity. The cylinder cover is generally cast by high-quality gray cast iron or alloy cast iron, and the gasoline engine for the car mostly adopts an aluminum alloy cylinder cover. The aluminum alloy has good heat conductivity and is beneficial to improving the compression ratio of the engine. And secondly, the casting performance is excellent, and the casting method is suitable for casting parts with complex structures. However, attention must be paid to cooling of the aluminum alloy cylinder head, and the temperature of the bottom plane thereof is controlled to be 300 ℃ or lower. Otherwise, overheating of the bottom plane would cause plastic deformation and warping. In the traditional forming process, the casting cost is high, the efficiency is low, and the precision and the quality of a finished product are unstable due to the influence of the structure and the process of a mould in the traditional process.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to provide an automobile cylinder cover die which is simple in structure, convenient to assemble, low in casting cost and good in quality.
【2】 Technical scheme for solving problems
The invention provides an automobile cylinder cover die, which is used for integrally forming an automobile cylinder cover and comprises the following components:
a base 1 as a support part for mounting other components;
the die body is fixed on the upper end face of the base 1 and comprises a lower die plate 7, side die plates fixed on two sides of the lower die plate 7 and end die plates fixed at two ends of the lower die plate, a forming cavity for cylinder cover forming and with an open upper end is formed among the lower die plate, the side die plates and the end die plates, and an upper die plate is arranged at the top of the forming cavity;
the reinforcing module is fixed on the base 1, is positioned outside the die body and is used for clamping the die body;
a pouring gate 51 for pouring liquid metal, extending to the bottom of the molding cavity through a runner;
the ejection mechanism is positioned at the lower end of the base 1 and used for ejecting the formed cylinder cover upwards from the forming cavity;
the negative pressure exhaust system is communicated with the forming cavity and is used for exhausting gas in the forming cavity during casting;
and the cooling system is positioned in the die body and used for cooling the forming cavity.
Further, the forming surface 702 of the lower template is provided with at least two valve hole forming dies 72 for forming valve holes of the cylinder cover, the valve hole forming dies are arranged at equal intervals along the length direction, and cooling channels are formed in the valve hole forming dies.
Further, the valve hole forming die comprises a cylindrical valve hole forming die body 721, the head of the valve hole forming die body is provided with an arc-shaped surface, four circular bosses are arranged on the arc-shaped surface, a cylindrical protrusion 7211 is arranged at the center of the rear end face of the valve hole forming die body, a groove 7212 is formed in the end face of the cylindrical protrusion, an air inlet hole 7213 and an air outlet hole 7214 are formed in the bottom surface of the groove, the air inlet hole and the air outlet hole extend downwards into the valve hole forming die body, the air inlet hole is communicated with the air outlet hole through a cooling channel 7215 in a winding manner, an installing head 722 is connected in the groove in a sealing manner, and an air inlet 7222 communicated with the air inlet hole and an air outlet 7223 communicated with the air outlet hole are formed in the end portion of the.
Further, the reinforcing module comprises a first clamping plate 2 fixed on the outer side of the side formwork and a second clamping plate 52 fixed on the outer side of the end formwork.
Furthermore, the side die plate comprises a first side die plate 8 fixed on the lower die plate and a second side die plate 6 fixed on the upper end face of the first side die plate, the rear end face of the second side die plate is inwards concave to form a cooling cavity, and a cooling flow channel communicated with the cooling cavity is formed in the reinforcing module.
Further, the lower extreme of second splint has seted up the mounting groove, the mounting groove has been seted up down to the upper end of base, down the mounting groove with form the open installation cavity in both ends between the last mounting groove, be equipped with in the installation cavity with the fixed plate 42 of tip template contact.
Further, the both sides wall symmetry of lower mounting groove is provided with first locating piece, the both sides wall symmetry of going up the mounting groove is provided with the second locating piece, first locating piece with form between the second locating piece and be on a parallel with the first constant head tank of installation cavity opening direction, the lateral wall of fixed plate is equipped with the third locating piece, the third locating piece is located first constant head tank, the top of fixed plate is equipped with two fourth locating pieces, two form between the fourth locating piece and be on a parallel with the second constant head tank of first constant head tank, the bottom of going up the mounting groove is equipped with the fifth locating piece, the fifth locating piece is located in the second constant head tank, the pull rod is installed to the outer end terminal surface detachably of fixed plate.
Further, the negative pressure exhaust system include with the exhaust hole that becomes the die cavity intercommunication, be equipped with the negative pressure exhaust pipe on the exhaust hole, the negative pressure exhaust pipe is including fixing blast pipe 900 on the exhaust hole, be equipped with a compressed air pipe 901 in the blast pipe, the compressed air pipe is on a parallel with the blast pipe, just the gas outlet orientation of compressed air pipe the gas outlet of blast pipe, the tracheal inlet end of compression passes be connected with an air supply behind the blast pipe.
Further, the lower bottom surface of the lower template is provided with an air hole communicated with the molding cavity and an air outlet 703 extending to the side wall of the lower template, the lower bottom surface of the lower template is provided with a cover plate 701 capable of covering the air hole and the air outlet, an air exhaust channel communicated with the air hole and the air outlet is formed on the cover plate, and the air exhaust channel is connected with a negative pressure exhaust pipeline on the negative pressure exhaust system.
Furthermore, positioning parts are arranged between contact surfaces of the templates of the die body and the plates of the reinforcing module.
【3】 Advantageous effects
The automobile cylinder cover die is convenient and quick to assemble, high in assembling precision, low in manufacturing cost, high in quality and stability of cast products, greatly improves production efficiency, and reduces production cost.
Drawings
FIG. 1 is a schematic structural view of an automotive cylinder head mold according to the present invention;
FIG. 2 is another schematic perspective view of the mold for cylinder head of an automobile according to the present invention;
FIG. 3 is an exploded view of the automotive cylinder head mold of the present invention;
FIG. 4 is an exploded view of another angle of the automotive cylinder head mold of the present invention;
FIG. 5 is a schematic structural view of a lower template of the automobile cylinder head mold of the present invention;
FIG. 6 is another schematic angle view of the lower platen of the automotive cylinder head mold of the present invention;
FIG. 7 is a schematic structural view of a valve forming hole die of the automobile cylinder head die of the present invention;
FIG. 8 is a schematic structural view of a valve hole forming die body of the automobile cylinder head die according to the present invention;
FIG. 9 is a schematic structural view of an ejection mechanism of the automobile cylinder head mold according to the present invention;
FIG. 10 is another schematic structural view of the ejection mechanism of the automobile cylinder head mold according to the present invention;
FIG. 11 is a schematic structural view of a negative pressure exhaust pipe of the automobile cylinder head mold according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1 to 11, the invention provides an automobile cylinder cover die, which is used for integrally forming an automobile cylinder cover and comprises a base 1, a die body, a reinforcing module, a material ejecting mechanism, a negative pressure exhaust system and a cooling system; the following description is made of the structure of each component:
the base 1 serves as a support portion for mounting other components, and is located at the lowermost end.
The die body is fixed on the upper end surface of the base 1 and comprises a lower die plate 7, side die plates fixed on two sides of the lower die plate 7 and end die plates fixed on two ends of the lower die plate, a forming cavity used for cylinder cover forming and provided with an opening at the upper end is formed among the lower die plate, the side die plates and the end die plates, and an upper die plate is arranged at the top of the forming cavity; the side template in the embodiment comprises a first side template 8 fixed on the lower template and a second side template 6 fixed on the upper end surface of the first side template, the rear end surface of the second side template is inwards concave to form a cooling cavity, and a cooling flow channel communicated with the cooling cavity is formed in the reinforcing module; this structure has reduced manufacturing cost, and the convenient mould that divides.
The reinforcing module is fixed on the base 1 and positioned outside the die body, and is used for clamping the die body and improving the strength of the die body, so that the casting quality is improved, and the production cost can be reduced; in this embodiment, the reinforcing module comprises a first clamping plate 2 fixed on the outer side of the side formwork and a second clamping plate 52 fixed on the outer side of the end formwork; specifically, the lower end of the second clamping plate is provided with an upper mounting groove, the upper end of the base is provided with a lower mounting groove, a mounting cavity with two open ends is formed between the lower mounting groove and the upper mounting groove, and a fixing plate 42 in contact with the end template is arranged in the mounting cavity; in order to further improve the loading and unloading efficiency, first positioning blocks are symmetrically arranged on two side walls of the lower mounting groove, second positioning blocks are symmetrically arranged on two side walls of the upper mounting groove, a first positioning groove parallel to the opening direction of the mounting cavity is formed between the first positioning blocks and the second positioning blocks, a third positioning block is arranged on the side wall of the fixing plate and located in the first positioning groove, two fourth positioning blocks are arranged at the top of the fixing plate, a second positioning groove parallel to the first positioning groove is formed between the two fourth positioning blocks, a fifth positioning block is arranged at the bottom of the upper mounting groove and located in the second positioning groove, a pull rod is detachably mounted on the end face of the outer end of the fixing plate, and during loading and unloading, the fixing plate is aligned to be pulled out or inserted in the opening direction of the mounting cavity, so that high-efficiency and accurate installation are achieved.
A pouring gate 51 for pouring liquid metal, extending to the bottom of the molding cavity through the runner;
the ejection mechanism is positioned at the lower end of the base 1 and is used for ejecting the formed cylinder cover upwards from the forming cavity; the device comprises a top plate positioned below a base, a guide pillar 705 with a rectangular cross section is vertically arranged at the lower end of the base, a mounting groove 706 corresponding to the guide pillar is arranged on the side wall of the top plate, a sliding block 707 is fixed in the mounting groove through a bolt, a sliding groove is formed in the side wall of the sliding block, the sliding groove is in sliding fit with the side wall of the guide pillar, and a limiting block 709 limiting the movement stroke of the top plate is fixed at the bottom of the guide pillar; the roof includes roof 702 and fixes roof 703 under the roof, goes up to run through on the roof to have the big shoulder hole of the little lower extreme in upper end, is equipped with ejector pin 708 in this shoulder hole, and the lower extreme of ejector pin is equipped with spacing portion, and spacing portion is located the big hole of shoulder hole and the lower terminal surface of spacing portion fits in the last bottom surface of roof under, and the tip of this ejector pin upwards passes base and lower bolster back and extends to the shaping chamber bottom surface.
The negative pressure exhaust system is communicated with the molding cavity and is used for efficiently exhausting gas in the molding cavity during casting; the negative pressure exhaust system comprises a plurality of exhaust holes communicated with the forming cavity, a negative pressure exhaust pipeline is arranged on each exhaust hole, each negative pressure exhaust pipeline comprises an exhaust pipe 900 fixed on each exhaust hole, a compressed air pipe 901 is arranged in each exhaust pipe, the compressed air pipes are parallel to the exhaust pipes, in the embodiment, the compressed air pipes and the exhaust pipes are coaxially arranged, the air outlets of the compressed air pipes face the air outlets of the exhaust pipes, and the air inlet ends of the compressed air pipes penetrate through the exhaust pipes and then are connected with an air source; in this embodiment, the lower bottom surface of the lower mold plate is provided with an air hole communicated with the molding cavity and an air vent 703 extending to the side wall of the lower mold plate, the lower bottom surface of the lower mold plate is provided with a cover plate 701 capable of covering the air hole and the air vent, the cover plate is formed with an air exhaust channel communicated with the air hole and the air vent, and the air exhaust channel is connected with a negative pressure exhaust pipeline on a negative pressure exhaust system.
And the cooling system is positioned in the die body and used for cooling and forming the forming cavity.
The forming surface 702 of the lower template is provided with at least two valve hole forming dies 72 for forming the valve holes of the cylinder cover, the valve hole forming dies are arranged at equal intervals along the length direction, and cooling channels are formed in the valve hole forming dies; specifically, the valve hole forming die comprises a cylindrical valve hole forming die body 721, the head of the valve hole forming die body is provided with an arc surface, four circular bosses are arranged on the arc surface, a cylindrical protrusion 7211 is arranged at the center of the rear end surface of the valve hole forming die body, a groove 7212 is arranged on the end surface of the cylindrical protrusion, an air inlet hole 7213 and an air outlet hole 7214 are arranged on the bottom surface of the groove, the air inlet hole and the air outlet hole extend downwards into the valve hole forming die body, and the air inlet hole and the air outlet hole are communicated through a cooling channel 7215 which is arranged in a winding manner; this structure can avoid cooling also or the gaseous excessive rapid outflow of cooling, improves its dwell time and increase area of contact, has improved the cooling effect greatly.
In order to improve the assembly efficiency and precision, positioning parts are arranged between the contact surfaces of the templates of the die body and the plates of the reinforcing module, and each positioning part comprises a positioning groove, a positioning bulge, a positioning hole or a positioning pin and the like.
The automobile cylinder cover die is convenient and quick to assemble, high in assembling precision, low in manufacturing cost, high in quality and stability of cast products, greatly improves production efficiency, and reduces production cost.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an automobile cylinder head mould for the integrated into one piece of automobile cylinder head, its characterized in that includes:
a base as a support part for mounting other components;
the die body is fixed on the upper end face of the base and comprises a lower die plate, side die plates fixed on two sides of the lower die plate and end die plates fixed on two ends of the lower die plate, a forming cavity which is used for cylinder cover forming and is provided with an opening at the upper end is formed among the lower die plate, the side die plates and the end die plates, and an upper die plate is arranged at the top of the forming cavity;
the reinforcing module is fixed on the base, positioned on the outer side of the die body and used for clamping the die body;
the pouring gate is used for pouring liquid metal and extends to the bottom of the molding cavity through the runner;
the ejection mechanism is positioned at the lower end of the base and used for ejecting the formed cylinder cover upwards from the forming cavity;
the negative pressure exhaust system is communicated with the forming cavity and is used for exhausting gas in the forming cavity during casting;
and the cooling system is positioned in the die body and used for cooling the forming cavity.
2. The automotive cylinder head mold of claim 1, wherein: the forming surface of the lower template is provided with at least two valve hole forming dies for forming valve holes of the cylinder cover, the valve hole forming dies are arranged at equal intervals along the length direction, and cooling channels are formed in the valve hole forming dies.
3. The cylinder head mold for an automobile according to claim 2, wherein: the valve hole forming die comprises a cylindrical valve hole forming die body, the head of the valve hole forming die body is provided with an arc-shaped surface, four circular bosses are arranged on the arc-shaped surface, a cylindrical protrusion is arranged at the center of the rear end face of the valve hole forming die body, a groove is formed in the end face of the cylindrical protrusion, an air inlet hole and an air outlet hole are formed in the bottom surface of the groove, the air inlet hole and the air outlet hole extend downwards into the valve hole forming die body, the air inlet hole is communicated with the air outlet hole through a cooling channel arranged in a winding mode, an installing head is connected in the groove in a sealing mode, and the end portion of the installing head is provided with an air inlet communicated with the air inlet hole and an air outlet communicated.
4. The automotive cylinder head mold of claim 1, wherein: the reinforcing module comprises a first clamping plate fixed on the outer side of the side template and a second clamping plate fixed on the outer side of the end template.
5. The automotive cylinder head mold of claim 1, wherein: the side template comprises a first side template fixed on the lower template and a second side template fixed on the upper end surface of the first side template, the rear end surface of the second side template is inwards concave to form a cooling cavity, and a cooling flow channel communicated with the cooling cavity is formed in the reinforcing module.
6. The cylinder head mold for an automobile according to claim 4, wherein: the lower extreme of second splint has seted up the mounting groove, the mounting groove has been seted up down to the upper end of base, down the mounting groove with form the open installation cavity in both ends between the last mounting groove, be equipped with in the installation cavity with the fixed plate of tip template contact.
7. The cylinder head mold for an automobile according to claim 6, wherein: the both sides wall symmetry of lower mounting groove is provided with first locating piece, the both sides wall symmetry of going up the mounting groove is provided with the second locating piece, first locating piece with form between the second locating piece and be on a parallel with the first constant head tank of installation cavity opening direction, the lateral wall of fixed plate is equipped with the third locating piece, the third locating piece is located first constant head tank, the top of fixed plate is equipped with two fourth locating pieces, two form between the fourth locating piece and be on a parallel with the second constant head tank of first constant head tank, the bottom of going up the mounting groove is equipped with the fifth locating piece, the fifth locating piece is located in the second constant head tank, the pull rod is installed to the outer end terminal surface detachably of fixed plate.
8. The automotive cylinder head mold of claim 1, wherein: negative pressure exhaust system include with the exhaust hole of one-tenth die cavity intercommunication, be equipped with negative pressure exhaust pipe on the exhaust hole, negative pressure exhaust pipe is including fixing exhaust pipe on the exhaust hole, be equipped with a compressed air pipe in the exhaust pipe, compressed air pipe is on a parallel with the exhaust pipe, just compressed air pipe's gas outlet orientation the gas outlet of exhaust pipe, compressed air pipe's inlet end passes be connected with a gas source behind the exhaust pipe.
9. The automotive cylinder head mold of claim 1, wherein: the lower bottom surface of the lower template is provided with an air hole communicated with the forming cavity and an air outlet extending to the side wall of the lower template, the lower bottom surface of the lower template is provided with a cover plate capable of covering the air hole and the air outlet, an air exhaust channel communicated with the air hole and the air outlet is formed in the cover plate, and the air exhaust channel is connected with a negative pressure air exhaust pipeline on the negative pressure air exhaust system.
10. The cylinder head mold for an automobile according to any one of claims 1 to 9, wherein: and positioning parts are arranged between the contact surfaces of the templates of the die body and the plates of the reinforcing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332309.XA CN110947907B (en) | 2019-12-22 | 2019-12-22 | Automobile cylinder cover die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911332309.XA CN110947907B (en) | 2019-12-22 | 2019-12-22 | Automobile cylinder cover die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110947907A true CN110947907A (en) | 2020-04-03 |
| CN110947907B CN110947907B (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911332309.XA Active CN110947907B (en) | 2019-12-22 | 2019-12-22 | Automobile cylinder cover die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110947907B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990134A (en) * | 2005-12-30 | 2007-07-04 | 广西玉柴机器股份有限公司 | Diesel engine four-valve cylinder head gravity casting die and casting method thereof |
| CN201361693Y (en) * | 2009-03-17 | 2009-12-16 | 沈阳新光华旭铸造有限公司 | Cylinder cover die with cooling structure |
| CN101954476A (en) * | 2010-08-31 | 2011-01-26 | 温州瑞明工业股份有限公司 | Metal formed die gravity tilt casting process of aluminum alloy cylinder cover |
| CN202984579U (en) * | 2012-12-19 | 2013-06-12 | 上海爱仕达汽车零部件有限公司 | Cylinder cover casting die |
| CN203804195U (en) * | 2014-02-26 | 2014-09-03 | 长城汽车股份有限公司 | Negative pressure exhausting structure of die |
| CN105772644A (en) * | 2016-05-16 | 2016-07-20 | 上海皮尔博格有色零部件有限公司 | Air pumping system with side core air cylinder cover die |
| CN108555255A (en) * | 2018-07-25 | 2018-09-21 | 广东肇庆动力金属股份有限公司 | A kind of mold sand core gas negative pressure pump drainage device |
| CN209238975U (en) * | 2018-11-27 | 2019-08-13 | 辽宁北方精密设备有限公司 | New-energy automobile water cooling casing casting metal mold tilted casting mold |
-
2019
- 2019-12-22 CN CN201911332309.XA patent/CN110947907B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990134A (en) * | 2005-12-30 | 2007-07-04 | 广西玉柴机器股份有限公司 | Diesel engine four-valve cylinder head gravity casting die and casting method thereof |
| CN201361693Y (en) * | 2009-03-17 | 2009-12-16 | 沈阳新光华旭铸造有限公司 | Cylinder cover die with cooling structure |
| CN101954476A (en) * | 2010-08-31 | 2011-01-26 | 温州瑞明工业股份有限公司 | Metal formed die gravity tilt casting process of aluminum alloy cylinder cover |
| CN202984579U (en) * | 2012-12-19 | 2013-06-12 | 上海爱仕达汽车零部件有限公司 | Cylinder cover casting die |
| CN203804195U (en) * | 2014-02-26 | 2014-09-03 | 长城汽车股份有限公司 | Negative pressure exhausting structure of die |
| CN105772644A (en) * | 2016-05-16 | 2016-07-20 | 上海皮尔博格有色零部件有限公司 | Air pumping system with side core air cylinder cover die |
| CN108555255A (en) * | 2018-07-25 | 2018-09-21 | 广东肇庆动力金属股份有限公司 | A kind of mold sand core gas negative pressure pump drainage device |
| CN209238975U (en) * | 2018-11-27 | 2019-08-13 | 辽宁北方精密设备有限公司 | New-energy automobile water cooling casing casting metal mold tilted casting mold |
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| CN110947907B (en) | 2021-11-19 |
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