CN106216609A - A kind of deep hole foundry goods core and manufacture the core box of this core - Google Patents

A kind of deep hole foundry goods core and manufacture the core box of this core Download PDF

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Publication number
CN106216609A
CN106216609A CN201610765273.4A CN201610765273A CN106216609A CN 106216609 A CN106216609 A CN 106216609A CN 201610765273 A CN201610765273 A CN 201610765273A CN 106216609 A CN106216609 A CN 106216609A
Authority
CN
China
Prior art keywords
core
die cavity
apotype
foundry goods
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610765273.4A
Other languages
Chinese (zh)
Inventor
张喜鹏
张喜艳
张秀亮
台相林
张乃儒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN DONGDA WEIYE LOCOMOTIVE Co Ltd
Original Assignee
TIANJIN DONGDA WEIYE LOCOMOTIVE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN DONGDA WEIYE LOCOMOTIVE Co Ltd filed Critical TIANJIN DONGDA WEIYE LOCOMOTIVE Co Ltd
Priority to CN201610765273.4A priority Critical patent/CN106216609A/en
Publication of CN106216609A publication Critical patent/CN106216609A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C7/00Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/06Core boxes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/10Cores; Manufacture or installation of cores

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention provides a kind of deep hole foundry goods core and manufacture the core box of this core, including the first core box, which is provided with the first die cavity, it is corresponding with described apotype groove that the bottom of the first die cavity is connected with apotype bent plate, the position of apotype bent plate and shape;The bottom of the first die cavity is additionally provided with some steam vents and push rod, and steam vent is extraneous along the radial communication of the first die cavity, and push rod moves along the radial expansion of the first die cavity;Second core box, which is provided with second die cavity corresponding with the first die cavity, and the bottom of the second die cavity also is provided with some steam vents and push rod.Deep hole foundry goods core of the present invention and manufacture the core box of this core, it is possible to add the wall thickness of the foundry goods vestibule of macrobending so that add man-hour carrying out vestibule, it is possible to ensure that the surface of bore inner walls is consistent, improve the quality that foundry goods is overall.

Description

A kind of deep hole foundry goods core and manufacture the core box of this core
Technical field
The invention belongs to casting mould field, especially relate to a kind of core.
Background technology
In the prior art, how the workpiece of some hole structures, when casting, can install core additional in a mold to complete work The casting of part.Complicated for some internal structures, and the pore structure that length is longer, then core can be selected to be used as casting core, So that core cleaning can be taken out after casting completes.But in the casting process of hole, taste the feelings that there will be vestibule bending Condition.Adding man-hour doing hole wall, can bend because of vestibule, its hole wall surface with tool contact, thus can not be caused in the middle part of hole wall Second-rate problem (as shown in Figure 7).
Summary of the invention
In view of this, it is contemplated that propose a kind of deep hole foundry goods core, to solve in prior art, because of the hole of foundry goods Chamber bending and the second-rate problem of the hole wall surface that causes.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of deep hole foundry goods core, including apotype groove, it is arranged at the middle part of core body cylindrical sidewall, and along core Main body axially extending;The cross section of apotype groove is fan annular.
Further, the middle part of described core body cylindrical sidewall is provided with molding projection;Described apotype groove has two, its edge Core body be axially respectively arranged on the both sides that molding is protruding, and apotype groove connects with the end of molding projection.
Further, the number of degrees of the central angle a of described apotype groove cross section are 90 °~180 °.
Further, groove depth b of described apotype groove is 2~4mm.
Relative to prior art, deep hole foundry goods core of the present invention has the advantage that
Deep hole foundry goods core of the present invention, simple in construction, working service is convenient.Bending is made by apotype groove In foundry goods vestibule, the wall thickness deviating from its axis side increases, so that the side-play amount completion that the foundry goods vestibule of bending is formed.Enter And when foundry goods vestibule is carried out machining, cutting tool can be with the medial wall comprehensive engagement of foundry goods vestibule, to ensure foundry goods The surface quality of vestibule medial wall.
Another object of the present invention is to propose a kind of core box, be used for manufacturing above-mentioned deep hole foundry goods core.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of core box, including the first core box, which is provided with the first die cavity, and the bottom of the first die cavity is connected with apotype bent plate, The position of apotype bent plate is corresponding with described apotype groove with shape;The bottom of the first die cavity is additionally provided with some steam vents and push rod, Steam vent is extraneous along the radial communication of the first die cavity, and push rod moves along the radial expansion of the first die cavity;Second core box, which is provided with Second die cavity corresponding with the first die cavity, the bottom of the second die cavity also is provided with some steam vents and push rod.
Further, each described apotype bent plate is provided with a through hole, through hole and a described steam vent connection.
Further, in described steam vent, it is fixed with some stacked baffle plates, and baffle plate fills up steam vent connection described first Die cavity or the end of the second die cavity;The become communication in gap between baffle plate is extraneous with described first die cavity or the second die cavity.
Further, the spacing of adjacent two described baffle plates is less than the diameter of core sand.
Described core box is identical relative to prior art have the advantage that with above-mentioned deep hole foundry goods core, the most superfluous at this State.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the axonometric drawing of the deep hole foundry goods core described in the embodiment of the present invention;
Fig. 2 is the left view of the deep hole foundry goods core described in the embodiment of the present invention;
Fig. 3 is the sectional view in A-A face in Fig. 2;
Fig. 4 is the front view of the first core box of the core box described in the embodiment of the present invention;
Fig. 5 is the enlarged drawing of I part in Fig. 4;
Fig. 6 is the front view of the second core box of the core box described in the embodiment of the present invention;
Fig. 7 is to add the vertical view in man-hour to sectional view before the foundry goods vestibule apotype described in the embodiment of the present invention;
Fig. 8 is that the vertical view during foundry goods vestibule apotype post-treatment described in the embodiment of the present invention is to sectional view.
Description of reference numerals:
1-core body;11-molding is protruding;12-apotype groove;2-the first core box;21-the first die cavity;3-push rod;4-second Core box;41-the second die cavity;5-apotype bent plate;51-through hole;6-baffle plate;7-foundry goods vestibule;71-crooked sidewall;72-apotype is convex Rise;8-cutting tool.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases Combination mutually.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score, Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or hint phase To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can To express or to implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple " It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected;Can To be mechanical connection, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition Concrete meaning in the present invention.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Such as Fig. 1-3, the present invention proposes a kind of deep hole foundry goods core, and including apotype groove 12, it is arranged at outside core body 1 The middle part of circle sidewall, and axially extending along core body 1;The cross section of apotype groove 12 is fan annular.
The middle part of above-mentioned core body 1 cylindrical sidewall is provided with molding projection 11;Above-mentioned apotype groove 12 has two, and it is along type The both sides being axially respectively arranged on molding projection 11 of core main body 1, and apotype groove 12 connects with the end of molding projection 11.
The number of degrees of the central angle a of above-mentioned apotype groove 12 cross section are 90 °~180 °.
Groove depth b of above-mentioned apotype groove 12 is 2~4mm.
During use, the present invention being arranged in casting die, the direction of apotype groove 12 is towards the curved side in foundry goods vestibule 7 Wall 71 forms direction, and above-mentioned crooked sidewall 71 is the medial wall deviating from its axis bending in the foundry goods vestibule 7 after pouring molding.
After foundry goods has been cast, under the effect of apotype groove 12, crooked sidewall 71 forming apotype projection 72, apotype is convex Play 72 by the side-play amount completion of crooked sidewall 71.Now, then when being processed the sidewall of foundry goods vestibule 7, cutting tool 8 can (as shown in Figure 8) is completely attached to the sidewall of foundry goods vestibule 7.
Such as Fig. 4-6, the present invention proposes a kind of core box for manufacturing above-mentioned deep hole foundry goods core, including the first core box 2, Which is provided with the first die cavity 21, the bottom of the first die cavity 21 is connected with apotype bent plate 5, and the position of apotype bent plate 5 and shape are with upper State apotype groove 12 corresponding;The bottom of the first die cavity 21 is additionally provided with some steam vents and push rod 3, and steam vent is along the first die cavity 21 Radial communication is extraneous, and push rod 3 moves along the radial expansion of the first die cavity 21;Second core box 4, it is right with the first die cavity 21 to which is provided with The second die cavity 41 answered, the bottom of the second die cavity 41 also is provided with some steam vents and push rod 3.
Push rod 3 is for ejecting the core in the first die cavity 21 (the second die cavity 41).
During use, the first core box 2 and the second core box 4 are separately fixed on core shooter.
Each above-mentioned apotype bent plate 5 is provided with a through hole 51, and through hole 51 connects with an above-mentioned steam vent.This structure has Help the molding of apotype groove 12.
It is fixed with some stacked baffle plates 6 in above-mentioned steam vent, and baffle plate 6 fills up steam vent and connects above-mentioned first die cavity 21 Or second end of die cavity 41;The become communication in gap between baffle plate 6 is extraneous with above-mentioned first die cavity 21 or the second die cavity 41.The spacing of adjacent two above-mentioned baffle plates 6 is less than the diameter of core sand.The structure of above-mentioned steam vent, it is possible to ensureing normal row In the case of gas, core sand is stoped to leak.
The deep hole foundry goods core that the present invention is above-mentioned, simple in construction, working service is convenient.Bending is made by apotype groove 12 Foundry goods vestibule 7 in, the wall thickness deviating from its axis side increases, so that the side-play amount that formed of foundry goods vestibule 7 of bending is mended Entirely.And then when foundry goods vestibule 7 is carried out machining, cutting tool 8 can with the medial wall comprehensive engagement of foundry goods vestibule 7, with Ensure the surface quality of foundry goods vestibule 7 medial wall.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (8)

1. a deep hole foundry goods core, it is characterised in that including:
Apotype groove (12), it is arranged at the middle part of core body (1) cylindrical sidewall, and axially extending along core body (1);Mend The cross section of type groove (12) is fan annular.
Deep hole foundry goods core the most according to claim 1, it is characterised in that: described core body (1) cylindrical sidewall It is protruding (11) that middle part is provided with molding;Described apotype groove (12) has two, and it is axially respectively arranged on molding along core body (1) The both sides of protruding (11), and apotype groove (12) connects with the end of molding projection (11).
Deep hole foundry goods core the most according to claim 1 and 2, it is characterised in that: described apotype groove (12) cross section The number of degrees of central angle a are 90 °~180 °.
Deep hole foundry goods core the most according to claim 1, it is characterised in that: groove depth b of described apotype groove (12) be 2~ 4mm。
5. the core box being used for manufacturing the deep hole foundry goods core described in any one of the claims 1-4, it is characterised in that Including:
First core box (2), which is provided with the first die cavity (21), and the bottom of the first die cavity (21) is connected with apotype bent plate (5), apotype Position and the shape of bent plate (5) are corresponding with described apotype groove (12);The bottom of the first die cavity (21) is additionally provided with some steam vents With push rod (3), steam vent is extraneous along the radial communication of the first die cavity (21), and push rod (3) is along the radial expansion of the first die cavity (21) Motion;
Second core box (4), which is provided with second die cavity (41) corresponding with the first die cavity (21), and the bottom of the second die cavity (41) is also It is provided with some steam vents and push rod (3).
Core box the most according to claim 5, it is characterised in that: each described apotype bent plate (5) is provided with a through hole (51), through hole (51) connects with a described steam vent.
7. according to the core box described in claim 5 or 6, it is characterised in that: it is fixed with some stacked baffle plates in described steam vent , and baffle plate (6) fills up steam vent and connects described first die cavity (21) or the end of the second die cavity (41) (6);Between baffle plate (6) The become communication in gap is extraneous with described first die cavity (21) or the second die cavity (41).
Core box the most according to claim 7, it is characterised in that: the spacing of adjacent two described baffle plates (6) is less than core sand Diameter.
CN201610765273.4A 2016-08-29 2016-08-29 A kind of deep hole foundry goods core and manufacture the core box of this core Pending CN106216609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610765273.4A CN106216609A (en) 2016-08-29 2016-08-29 A kind of deep hole foundry goods core and manufacture the core box of this core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610765273.4A CN106216609A (en) 2016-08-29 2016-08-29 A kind of deep hole foundry goods core and manufacture the core box of this core

Publications (1)

Publication Number Publication Date
CN106216609A true CN106216609A (en) 2016-12-14

Family

ID=58072509

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610765273.4A Pending CN106216609A (en) 2016-08-29 2016-08-29 A kind of deep hole foundry goods core and manufacture the core box of this core

Country Status (1)

Country Link
CN (1) CN106216609A (en)

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PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20161214

WD01 Invention patent application deemed withdrawn after publication