CN110732644A

CN110732644A - fixed dies of engine cylinder block capable of high-precision die assembly

Info

Publication number: CN110732644A
Application number: CN201911201654.XA
Authority: CN
Inventors: 叶能; 周希旺; 林邦远
Original assignee: GUANGZHOU DIE AND MOULD MANUFACTURING Co Ltd
Current assignee: GUANGZHOU DIE AND MOULD MANUFACTURING Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-01-31

Abstract

The invention discloses fixed dies of an engine cylinder body capable of high-precision die assembly, wherein a sprue bush is arranged on the back side surface of the fixed die, a molding cavity is formed in the middle of the inner side surface of the fixed die, the sprue bush penetrates through the fixed die and is communicated with the molding cavity, a main die is arranged in the molding cavity, a plurality of limiting grooves which are sunken inwards from the inner side surface of the fixed die are arranged on the periphery of the main die, the bottom surfaces of the limiting grooves are higher than the bottom surface of the molding cavity, a plurality of vertical fixing pieces are also arranged on the periphery of the fixed die, and the fixing pieces extend out of the inner side surface of the fixed die.

Description

fixed dies of engine cylinder block capable of high-precision die assembly

Technical Field

The invention relates to the technical field of engine cylinder casting, in particular to fixed dies of an engine cylinder capable of realizing high-precision die assembly.

Background

The cylinder block of an automobile engine is a framework of the engine, main parts are installed in the cylinder block, and the cylinder block bears loads in motion. The cylinder casting accuracy of an engine is critical to ensure engine performance. The cylinder casting cavity die in the prior art has the problems of complex die assembly process and inaccurate die assembly due to lack of guidance and limitation in the die assembly process, and directly influences the casting quality of an engine.

Disclosure of Invention

Accordingly, an object of the present invention is to provide fixed engine block molds that can be clamped with high accuracy, and that can be easily handled, and that improve the clamping accuracy and the casting quality of the engine block.

According to the fixed die of the engine cylinder body capable of high-precision die assembly, the back side surface of the fixed die is provided with the sprue bush, the middle part of the inner side surface of the fixed die is provided with the molding cavity, the sprue bush penetrates through the fixed die and is communicated with the molding cavity, and the molding cavity is internally provided with the main die; a plurality of limiting grooves which are sunken inwards from the inner side surface of the fixed die are formed in the periphery of the main die, and the bottom surfaces of the limiting grooves are higher than the bottom surface of the forming cavity; the periphery of the fixed die is also provided with a plurality of vertical fixing pieces, and the fixing pieces extend out of the inner side face of the fixed die.

The fixed die of the engine cylinder body capable of high-precision die assembly can be used for positioning the movable die in a high-precision and close range by arranging the plurality of limiting grooves around the main die and matching the limiting grooves with the movable die, so that the die assembly accuracy is improved, the sealing effect is good, the casting quality is improved, the fixed piece is arranged on the periphery of the fixed die, when the movable die moves towards the fixed die, the fixed piece can provide guidance for the movable die, the alignment precision of the movable die is corrected before die assembly, a die assembly reference is provided for operation, deviation in the die assembly process is prevented, and the die assembly precision is improved in step .

preferably, a fixing seat for fixing the sprue bush is further arranged on the back side surface of the fixed die, a through hole is formed in the middle of the fixing seat, and the sprue bush passes through the through hole of the fixing seat.

the fixing part is a strip fixing plate which can be fixed on the fixed mould by bolts, the strip fixing plate can provide guidance for the moving mould, the mould closing along the strip groove can improve the initial precision of mould closing, and avoids correcting for many times.

the fixed mould is a rectangular body, which is convenient for manufacturing and operation.

, preferably, the number of the fixing pieces is four, and the four fixing pieces are respectively located at four corners of the fixed die, and the fixing pieces are arranged at the four corners of the fixed die, so that the fixing pieces can not block the view of observing the fixed die and the movable die when the dies are assembled, the die assembly is convenient, and the limiting effect at the corners is good.

, the fixed die is preferably provided with chamfers at its four corners to prevent accidents such as bruising.

preferably, the fixed die is also provided with a plurality of fixing rings at its side.

preferably, the fixed rings are two, two fixed rings are set on the two sides of the fixed mold on the same side, two fixed rings are set on the same side, the fixed mold can be directly hoisted when transporting and installing.

Compared with the prior art, the engine cylinder body fixed die capable of high-precision die assembly can utilize the limit grooves to be matched with the movable die to perform high-precision and close-range positioning by arranging the limit grooves around the main die, so that the die assembly accuracy is improved, the sealing effect is good, the casting quality is improved, the fixed piece arranged on the periphery of the fixed die can provide guidance for the movable die when the movable die moves towards the fixed die, the alignment precision of the movable die is corrected before die assembly, a die assembly reference is provided for operation, deviation in the die assembly process is prevented, and the die assembly precision is further improved in step .

The fixed die of the engine cylinder body capable of high-precision die assembly has the beneficial effects that: the operation is convenient, the die assembly precision is improved, and the casting quality of the engine cylinder body is improved.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic perspective view of a preferred structure of the fixed die of the engine cylinder block capable of high-precision die assembly.

FIG. 2 is a schematic structural diagram of the inner side surface of the fixed die structure of the engine block capable of realizing high-precision die assembly.

FIG. 3 is a schematic structural diagram of the back side surface of the fixed die structure of the fixed die of the engine block capable of realizing high-precision die assembly.

Detailed Description

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.

Rather, they are merely examples of methods that correspond to of the aspects of the present disclosure as detailed in the appended claims.

As used in this disclosure and the appended claims, the singular forms "," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Please refer to fig. 1-3. FIG. 1 is a schematic perspective view of a preferred structure of the fixed die of the engine cylinder block capable of high-precision die assembly. FIG. 2 is a schematic structural diagram of the inner side surface of the fixed die structure of the engine block capable of realizing high-precision die assembly. FIG. 3 is a schematic structural diagram of the back side surface of the fixed die structure of the fixed die of the engine block capable of realizing high-precision die assembly.

According to the fixed die of the engine cylinder body capable of high-precision die assembly, the back side surface of the fixed die is provided with the sprue bush 1, the middle part of the inner side surface of the fixed die is provided with the molding cavity 2, the sprue bush 1 penetrates through the fixed die and is communicated with the molding cavity 2, and the molding cavity 2 is internally provided with the main die 3; a plurality of limiting grooves 4 which are sunken inwards from the inner side surface of the fixed die are formed in the periphery of the main die 3, and the bottom surfaces of the limiting grooves 4 are higher than the bottom surface of the forming cavity 2; the periphery of the fixed die is also provided with a plurality of vertical fixing pieces 5, and the fixing pieces 5 extend out of the inner side surface of the fixed die.

The plurality of limiting grooves 4 are arranged around the main die 3, so that the limiting grooves 4 can be used for being matched with the movable die to perform high-precision and close-range positioning, the die closing accuracy is improved, the sealing effect is good, and the casting quality is improved, and the fixing piece 5 arranged on the periphery of the fixed die can provide guidance for the movable die when the movable die moves towards the fixed die, correct the alignment precision of the movable die before die closing, provide a die closing reference for operation, prevent deviation in the die closing process, and improve the die closing precision in step .

Specifically, the fixed die is a rectangular body. The structure of the cuboid facilitates processing and production, and facilitates die assembly operation.

The number of the fixing pieces 5 is four, and the four fixing pieces 5 are respectively located at four end corners of the fixed die. Will mounting 5 set up in four extreme angles departments of cover half, when the compound die, mounting 5 can not block the sight of observing cover half and movable mould, makes things convenient for the compound die, and the spacing of extreme angles department is effectual.

Preferably, four end corners of the fixed die are provided with chamfers. The chamfer angle can prevent accidents such as collision injury and the like.

The fixing piece 5 of this embodiment is a strip-shaped fixing plate, and the fixing plate can be detachably fixed on the fixed die through a bolt. The strip-shaped fixed plate can provide guidance for the movable mold, and the mold closing along the strip-shaped groove can improve the initial precision of mold closing and avoid repeated correction.

The fixed die is characterized in that a fixed seat 6 used for fixing the sprue bush 1 is further arranged on the back side surface of the fixed die, a through hole is formed in the middle of the fixed seat 6, and the sprue bush 1 penetrates through the through hole of the fixed seat 6. The fixed seat 6 can fix the sprue bush 1, and the structural strength of the sprue bush 1 is improved.

The side of the fixed die is also provided with a plurality of fixing rings 7. The fixed ring 7 is convenient to transport and mount.

Preferably, the number of the fixed rings 7 is two, and the two fixed rings 7 are arranged on the two sides of the fixed die on the same side . the two fixed rings 7 are arranged on the same side , so that the fixed die can be directly hoisted during transportation and installation.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

The fixed die of the engine cylinder body is characterized in that a sprue bush is arranged on the back side surface of the fixed die, a forming cavity is formed in the middle of the inner side surface of the fixed die, the sprue bush penetrates through the fixed die and is communicated with the forming cavity, a main die is arranged in the forming cavity, a plurality of limiting grooves which are recessed inwards from the inner side surface of the fixed die are arranged on the periphery of the main die, the bottom surfaces of the limiting grooves are higher than the bottom surfaces of the forming cavity, a plurality of vertical fixing pieces are further arranged on the periphery of the fixed die, and the fixing pieces extend out of the inner side surface of the fixed die.
2. The high-precision matched-die engine block fixed die according to claim 1, characterized in that: the fixed die is characterized in that a fixed seat used for fixing the sprue bush is further arranged on the back side surface of the fixed die, a through hole is formed in the middle of the fixed seat, and the sprue bush penetrates through the through hole of the fixed seat.
3. The high-precision matched-die engine block fixed die according to claim 1, characterized in that: the fixing piece is a strip-shaped fixing plate, and the fixing plate can be detachably fixed on the fixed die through bolts.
4. The high-precision matched-die engine block fixed die according to claim 3, characterized in that: the fixed die is a rectangular body.
5. The high-precision matched-die engine block fixed die according to claim 4, characterized in that: the fixed part is four, four the fixed part is located respectively four extreme angle departments of cover half.
6. The high-precision matched-die engine block fixed die according to claim 5, characterized in that: and four end corners of the fixed die are provided with chamfers.
7. A fixed die of an engine block capable of realizing high-precision die assembly according to any one of claims 1-6 and , wherein the side edge of the fixed die is further provided with a plurality of fixing rings.
8. The fixed die of the engine block capable of realizing high-precision die assembly according to claim 7, is characterized in that the number of the fixed rings is two, and the two fixed rings are arranged on two sides of the fixed die on the same side.