Cylinder cover die-casting die

Abstract

The utility model relates to the technical field of die-casting dies, and discloses a cylinder cover die-casting die which comprises an upper fixing plate and a lower fixing plate, an upper die is arranged in the upper fixing plate, a lower die is arranged in the lower fixing plate, and the upper die and the lower die are distributed oppositely. The multiple die-casting protrusions are distributed on the side, close to the upper die, of the lower die at intervals. Die-casting grooves are formed in the positions, corresponding to the die-casting protrusions, of the upper die, gaps are formed between the die-casting grooves and the die-casting protrusions, a plurality of die-casting cavities are formed by the gaps between the multiple die-casting grooves and the multiple die-casting protrusions, and the multiple die-casting cavities are distributed oppositely; the die-casting die further comprises a plurality of hole drawing parts, the hole drawing parts and the die-casting cavities are distributed correspondingly, and the hole drawing parts are used for conducting hole drawing machining on the die-casting cavities. The die-casting die has the advantages of being simple in structure and high in die-casting efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting mould technology field, concretely relates to a cylinder cover die casting mould. BACKGROUND

[0002] With the continuous development of industrial production, metal parts are widely used in industrial production due to their high strength, easy forming and other characteristics. For example, cylinder blocks and other parts are usually made by die casting, which is a precision casting method that involves pressing molten metal into a complex-shaped metal mold. The existing technology generally uses a die casting machine with a die casting mold to perform casting and pressing operations. The die casting machine opens and closes the mold and injects the molten metal. The molten metal cools and forms the desired shape in the mold, thereby completing the manufacturing of the part.

[0003] For example, the patent document with publication number CN212469712U discloses an automobile engine cylinder cover die casting mold, which includes a U-shaped bracket, a cold water machine is arranged on the other side of the inner wall of the U-shaped bracket, two symmetrical support vertical plates are vertically arranged at the two ends of the top of the U-shaped bracket, a cooling box is bonded to the top of the U-shaped bracket between the two support vertical plates, two symmetrical support columns are arranged at the top of the two support vertical plates and close to the two ends, a support horizontal plate is arranged at the top of the support column, two symmetrical hydraulic cylinders are arranged on the surface of the support horizontal plate and close to the middle, and the end of the hydraulic cylinder piston rod penetrates through the support horizontal plate and is welded with an upper pressing plate. The automobile engine cylinder cover die casting mold generates cold water through the cold water machine and inputs it into the cooling box, so that the heat-conducting copper block in the cooling box is quickly cooled, thereby quickly cooling the cylinder cover mold on the heat-conducting copper plate, reducing the cooling time of the cylinder cover mold, facilitating quick demolding, and improving the working efficiency.

[0004] Although the above technical solution can achieve quick cooling and demolding of the cylinder cover and improve the die casting working efficiency of the cylinder cover, in the production process of the cylinder cover, an opening is usually needed to be formed on the cylinder cover to enable communication between the opening on the cylinder cover and the inside of the matched cylinder body. Therefore, hole machining is usually needed for the cylinder cover during die casting, which increases the die casting machining steps of the cylinder cover. Therefore, in order to ensure the quality of the die casting machined cylinder cover, only a single cylinder cover is usually die cast during die casting production, which can only produce one cylinder cover during die casting, resulting in low production efficiency of the cylinder cover. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide a cylinder cover die casting mold to solve the technical problem of low production efficiency of the cylinder cover caused by single die casting of a single cylinder cover in the prior art.

[0006] To achieve the above object, the utility model discloses the following technical scheme: a cylinder cover die casting die, including upper fixed plate and lower fixed plate, the upper fixed plate is equipped with upper mould, the lower fixed plate is equipped with lower mould, the upper mould with The lower mould is distributed towards, be equipped with a plurality of die casting protrusions on the lower mould, a plurality of die casting protrusions are distributed in the lower mould close to the upper mould one side interval, the upper mould with each die casting protrusion corresponding position is equipped with die casting recess, the die casting recess with The die casting protrusion is equipped with interval, and the interval between a plurality of die casting recesses and a plurality of die casting protrusions forms a plurality of die casting cavities, and a plurality of die casting cavities are distributed towards, still including a plurality of hole parts, the hole part with The die casting cavity is distributed corresponding, and the hole part is used for the die casting cavity hole processing.

[0007] The principle and advantages of the present scheme are as follows: when die casting the cylinder cover, the upper mould and the lower mould are folded to form a closed die casting cavity between the upper mould and the lower mould, then the metal melt raw material required for die casting is injected into the mould, the metal melt raw material flows into the plurality of die casting cavities between the upper mould and the lower mould under the action of pressure, after waiting for the metal melt raw material to completely fill each die casting cavity, waiting for the metal melt raw material to cool and solidify, the upper mould and the lower mould are separated, and the die casting cylinder cover is taken out.

[0008] In the present scheme, when die casting the cylinder cover, a plurality of die casting cavities are arranged in the mould, so that the die casting of a plurality of cylinder covers can be completed at the same time in one die casting process, thereby improving the die casting efficiency of the cylinder cover. Moreover, the plurality of die casting cavities are distributed towards each other, so that the injected metal melt raw material can uniformly flow into each die casting cavity during the die casting process, ensuring the uniformity of the pressure in each die casting cavity during the die casting process, improving the consistency of the processing environment of the plurality of cylinder covers simultaneously die cast, and ensuring the quality of the cylinder cover processing.

[0009] Preferably, as an improvement, one side of the lower mould is provided with a feeding pipe, one end of the feeding pipe communicates with each die casting cavity, and the feeding pipe is used for conveying the metal melt raw material into each die casting cavity. The metal melt raw material is conveyed into the plurality of die casting cavities through one feeding pipe, so that the die casting process in each die casting cavity can be ensured to proceed synchronously during the die casting process.

[0010] Preferably, as an improvement, the plurality of die casting cavities are distributed towards each other on both sides of the feeding pipe, and the die casting cavities on both sides of the feeding pipe are symmetrically distributed. By symmetrically distributing the plurality of die casting cavities on both sides of the feeding pipe, the filling progress of the metal melt raw material in each die casting cavity can be kept consistent when the feeding pipe injects the metal melt raw material into each die casting cavity, ensuring the consistency of the parameters and progress of the die casting production in each die casting cavity, avoiding quality differences when the plurality of die casting cavities simultaneously perform die casting production and processing, and affecting the overall quality of the cylinder cover die casting processing.

[0011] Preferably, as an improvement, the hole drawing part comprises a hole drawing rod, one end of the hole drawing rod is connected with the die casting cavity away from one end of the feeding pipe, the other end extends outward in the direction away from the die casting cavity, and the hole drawing rod can move in the direction close to or away from the die casting cavity. By arranging a hole drawing part on one side of each die casting cavity, it is ensured that each die casting cavity can be simultaneously subjected to hole drawing processing after die casting, and by arranging the hole drawing part of each die casting cavity away from one end of the feeding pipe, it is ensured that the adjacent hole drawing parts will not interfere with each other during hole drawing processing of each die casting cavity, thereby ensuring the smoothness of hole drawing processing of each hole drawing part.

[0012] Preferably, as an improvement, the hole drawing rod is provided with a sliding groove at the end away from the die casting cavity, the extension direction of the sliding groove is consistent with the extension direction of the hole drawing rod, a sliding block is slidingly connected to the sliding groove, and the sliding block is used to drive the hole drawing rod to move in the extension direction thereof. By driving the hole drawing rod to move through the sliding groove and the sliding block, the hole drawing rod can move smoothly during hole drawing operation, so that shaking or deviation of the hole drawing rod during hole drawing processing is avoided, thereby preventing damage to the die casting cylinder head.

[0013] Preferably, as an improvement, a driving hole is formed in the top of the sliding block, a driving rod is inserted into the driving hole, and the driving rod is used to drive the sliding block to move in the direction close to or away from the die casting cavity.

[0014] Preferably, as an improvement, the driving hole extends into the sliding block in the height direction of the top of the sliding block, and the central axis of the driving hole is obliquely distributed in the moving direction of the sliding block. By obliquely distributing the driving hole on the sliding block, the driving rod inserted into the driving hole can drive the sliding block to translate when the driving rod is stretched and contracted in the height direction, thereby simplifying the driving structure of the sliding block. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the cylinder head die casting mold in the embodiment of the utility model.

[0016] Figure 2 It is a structure schematic view of the upper fixed plate in the embodiment of the utility model.

[0017] Figure 3 It is a structure schematic view of the lower fixed plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following will be further described in detail through specific embodiments:

[0019] The reference signs in the drawings of the specification include: upper fixed plate 1, upper die 101, upper fixed groove 102, die casting groove 103, lower fixed plate 2, lower die 201, die casting protrusion 202, connecting plate 3, lower fixed groove 301, connecting column 4, feeding pipe 5, hole part 6, hole rod 601, sliding block 602, sliding groove 603, driving hole 604.

[0020] As shown in the accompanying Figure 1 A cylinder head die casting mold, including an upper fixed plate 1 and a lower fixed plate 2, an upper die 101 is arranged in the upper fixed plate 1, a lower die 201 is arranged in the lower fixed plate 2, and a die casting cavity for die casting processing is arranged between the upper die 101 and the lower die 201.

[0021] The upper fixed plate 1 and the lower fixed plate 2 are stacked and distributed, wherein the upper die 101 is embedded on the opposite surface of the upper fixed plate 1 and the lower fixed plate 2, and the upper die 101 is fixedly connected with the upper fixed plate 1 by bolts or welding; the lower die 201 is embedded on the opposite surface of the lower fixed plate 2 and the upper fixed plate 1, and the positions of the upper die 101 and the lower die 201 correspond.

[0022] The upper fixed plate 1 is used for fixing the position of the upper die 101. The upper fixed groove 102 is arranged on both sides of the upper fixed plate 1, and the upper fixed groove 102 is parallelly distributed on both sides of the upper fixed plate 1, and the upper fixed groove 102 penetrates through both sides of the upper fixed plate 1 along the width direction perpendicular to the upper fixed plate 1, and the upper fixed groove 102 is used for clamping connection with external equipment. The connecting plate 3 is arranged on the side of the lower fixed plate 2 away from the lower die 201, and the connecting plate 3 is fixedly connected with the lower fixed plate 2 by bolts, and the lower fixed groove 301 is arranged on the side surface of the connecting plate 3, and the lower fixed groove 301 penetrates through both sides of the connecting plate 3 along the height direction perpendicular to the connecting plate 3. The connecting plate 3 is provided with two pieces, and the two connecting plates 3 are parallelly distributed on both sides of the bottom of the lower fixed groove 301, and the lower fixed groove 301 is on the opposite surfaces of the connecting plate 3; the connecting plate 3 is used for clamping connection with external equipment through the lower fixed groove 301.

[0023] A plurality of connecting columns 4 are arranged between the upper fixed plate 1 and the lower fixed plate 2, and the plurality of connecting columns 4 are uniformly distributed on the opposite surfaces of the upper fixed plate 1 and the lower fixed plate 2 along the circumferential direction of the lower fixed plate 2, and the connecting columns 4 are spaced apart between the upper fixed plate 1 and the upper die 101. One end of the connecting column 4 is clamped and connected with the upper fixed plate 1, and the other end extends outwardly away from the upper fixed plate 1. A connecting hole is arranged on the lower fixed plate 2 and the corresponding position of each connecting column 4, and the connecting column 4 can be arranged in the connecting hole, and the upper fixed plate 1 and the lower fixed plate 2 are connected through the connecting column 4 and the connecting hole. When the upper die 101 and the lower die 201 are connected or separated, the upper die 101 and the lower die 201 can be guided under the action of the connecting column 4, so as to ensure the accuracy of the connection between the upper die 101 and the lower die 201.

[0024] As shown in the accompanyingFigure 2 With the accompanying Figure 3 As shown in the lower die 201 on the top of the integrated plurality of die casting protrusions 202, 202, the plurality of die casting protrusions 202 is distributed on the side of the lower die 201 close to the upper die 101. The die casting protrusions 202 protrude from the surface of the lower die 201, wherein the specific shape of the die casting protrusions 202 matches the shape of the cylinder head that needs to be die casting. The upper die 101 and the die casting protrusions 202 are integrally formed in the corresponding position of the die casting recess 103, which is recessed in the surface of the upper die 101, wherein the die casting protrusions 202 can be set in the die casting recess 103, and a circumferentially sealed gap is reserved between the die casting protrusions 202 and the die casting recess 103, that is, a die casting cavity is provided between the die casting recess 103 and the die casting protrusions 202. The specific structure of the die casting recess 103 and the die casting protrusions 202 is prior art, which will not be described here.

[0025] A feed pipe 5 is provided on one side of the lower die 201, one end of the feed pipe 5 communicates with the die casting cavity, the other end extends upward perpendicular to the plane where the lower die 201 is located, and the end of the feed pipe 5 away from the lower die 201 penetrates the upper fixed plate 1, the feed pipe 5 is used to transport metal melt raw materials into the die casting cavity.

[0026] A plurality of die casting cavities are distributed on both sides of the feed pipe 5, and the die casting cavities on both sides of the feed pipe 5 are symmetrically distributed, specifically in this embodiment, the die casting cavities include two, two die casting cavities are symmetrically distributed on both sides of the feed pipe 5, that is, the feed ports of the die casting cavities are distributed on both sides of the feed pipe 5. By symmetrically distributing a plurality of die casting cavities on both sides of the feed pipe 5, the filling progress of the metal melt raw materials in each die casting cavity can be kept consistent when the feed pipe 5 injects metal melt raw materials into each die casting cavity, ensuring the consistency of parameters and progress in each die casting cavity during die casting production, avoiding quality differences when multiple die casting cavities simultaneously perform die casting production and processing, and affecting the overall quality of the cylinder head die casting processing.

[0027] The hole drawing part 6 is arranged on one side of each pressure casting cavity, and is used for hole drawing of the opening on the pressure cast cylinder head. The hole drawing part 6 is arranged at one end of the pressure casting cavity away from the feeding pipe 5. The hole drawing part 6 comprises a hole drawing rod 601, one end of the hole drawing rod 601 is inserted into the opening at one end of the pressure casting cavity, and the other end extends away from the pressure casting cavity; a sliding block 602 is arranged at one end of the hole drawing rod 601 away from the pressure casting cavity, and the sliding block 602 is fixedly connected with one end of the hole drawing rod 601 away from the pressure casting cavity by welding or integral molding; a sliding groove 603 is arranged on one side of the pressure casting cavity close to the sliding block 602, and the sliding groove 603 is fixedly connected with the lower fixed plate 2 by bolts; the extension direction of the sliding groove 603 is consistent with the extension direction of the hole drawing rod 601, and the sliding block 602 is slidingly connected with the sliding groove 603. The sliding block 602 is used for driving the hole drawing rod 601 to move along the direction close to or away from the pressure casting cavity. By arranging the hole drawing part 6 on one side of each pressure casting cavity, it is ensured that each pressure casting cavity can be simultaneously subjected to hole drawing processing after pressure casting is completed. By arranging the hole drawing part 6 of each pressure casting cavity at one end away from the feeding pipe 5, it is ensured that the adjacent hole drawing parts 6 will not interfere with each other during hole drawing processing, and the smoothness of hole drawing processing of each hole drawing part 6 is ensured.

[0028] The sliding block 602 can be connected with an external driving device during movement. Specifically, a driving hole 604 is formed in the top of the sliding block 602, the driving hole 604 extends into the sliding block 602 along the height direction of the top of the sliding block 602, and the central axis of the driving hole 604 is obliquely distributed along the movement direction of the sliding block 602. A driving rod is inserted into the driving hole 604, the sliding block 602 is connected with the driving device through the driving rod, and the driving device drives the sliding block 602 to move along the direction close to or away from the pressure casting cavity. The driving device can be a cylinder, an oil cylinder or the like. The specific content of driving the sliding block 602 to move by the driving device is a prior art, which will not be described here. By arranging the driving hole 604 in the top of the sliding block 602 and connecting the driving device, the sliding block 602 can have sufficient power when driving the hole drawing rod 601 to move, and the hole drawing effect of the sliding block 602 is ensured. By connecting the driving hole 604 with the external driving device, the hole drawing of each hole drawing part 6 can be uniformly controlled, and the controllability of hole drawing processing of the hole drawing part 6 is improved.

[0029] The specific implementation process is as follows:

[0030] When the cylinder head is pressure cast, the upper mold 101 and the lower mold 201 are closed to form a closed pressure casting cavity therebetween, and then the metal melt raw material required for pressure casting is injected into the mold. Under the action of pressure, the metal melt raw material flows into the plurality of pressure casting cavities between the lower mold 201 and the upper mold 101. After the metal melt raw material completely fills each pressure casting cavity, the metal melt raw material is cooled and solidified to form a shape. Then, the upper mold 101 and the lower mold 201 are separated, and the pressure cast cylinder head is taken out.

[0031] Compared with the prior art, in the scheme, when the cylinder cover is pressure casting, a plurality of pressure casting cavities are arranged in the mold, so that the pressure casting of a plurality of cylinder covers can be completed at the same time in one pressure casting process, and the pressure casting efficiency of the cylinder cover is improved. And the plurality of pressure casting cavities are distributed on both sides of the feeding pipe 5, so that the injected metal melt raw material can flow uniformly into each pressure casting cavity during the pressure casting process, ensuring the uniformity of the pressure in each pressure casting cavity during the pressure casting process, improving the consistency of the processing environment of the plurality of cylinder covers in the pressure casting process, and ensuring the quality of the cylinder cover processing.

[0032] It should be pointed out that for those skilled in the art, without departing from the technical scheme of the utility model, a number of modifications and improvements can be made, which should also be considered as the protection scope of the utility model, which will not affect the effect and practicality of the utility model. The protection scope claimed in the present application shall be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A cylinder head die-casting mould, comprising an upper fixed plate and a lower fixed plate, an upper mould is arranged in the upper fixed plate, a lower mould is arranged in the lower fixed plate, the upper mould and the lower mould are oppositely distributed, characterized in that: The lower mold is provided with a plurality of die casting protrusions, which are distributed at intervals on the side of the lower mold close to the upper mold; the upper mold is provided with die casting grooves at positions corresponding to the die casting protrusions, the die casting grooves and the die casting protrusions are provided with gaps, the gaps between the plurality of die casting grooves and the plurality of die casting protrusions form a plurality of die casting cavities, and the plurality of die casting cavities are distributed towards each other; further comprising a plurality of hole extraction portions, which are distributed correspondingly to the die casting cavities, and are used for hole extraction processing of the die casting cavities.

2. A cylinder head die-casting die according to claim 1, characterized in that: One side of the lower mold is provided with a feeding pipe, one end of the feeding pipe communicates with each die casting cavity, and the feeding pipe is used for conveying metal melt raw materials into each die casting cavity.

3. A cylinder head die-casting die according to claim 2, characterised in that: The plurality of die casting cavities are distributed towards each other on both sides of the feeding pipe, and the die casting cavities on both sides of the feeding pipe are symmetrically distributed.

4. A cylinder head die-casting die according to claim 3, characterised in that: The hole extraction portion comprises a hole extraction rod, one end of the hole extraction rod is connected to one end of the die casting cavity away from the feeding pipe, the other end of the hole extraction rod extends outward in a direction away from the die casting cavity, and the hole extraction rod can move in a direction close to or away from the die casting cavity.

5. A cylinder head die-casting die according to claim 4, characterised in that: One end of the hole extraction rod away from the die casting cavity is provided with a sliding groove, the extension direction of the sliding groove is consistent with the extension direction of the hole extraction rod, a sliding block is slidably connected to the sliding groove, and the sliding block is used to drive the hole extraction rod to move in the extension direction of the hole extraction rod.

6. A cylinder head die-casting die according to claim 5, characterised in that: A driving hole is formed in the top of the sliding block, a driving rod is inserted into the driving hole, and the driving rod is used to drive the sliding block to move in a direction close to or away from the die casting cavity.

7. A cylinder head die-casting die according to claim 6, characterised in that: The driving hole extends into the sliding block in a height direction on the top of the sliding block, and the central axis of the driving hole is obliquely distributed in the moving direction of the sliding block.

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