CN106670383B - For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings - Google Patents
For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings Download PDFInfo
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- CN106670383B CN106670383B CN201611090944.8A CN201611090944A CN106670383B CN 106670383 B CN106670383 B CN 106670383B CN 201611090944 A CN201611090944 A CN 201611090944A CN 106670383 B CN106670383 B CN 106670383B
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- arms
- casting mold
- mold unit
- lathe
- sand
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
One aspect of the present invention provides a kind of for casting the sand mold of lathe both arms Pillar Castings, it include: the first casting mold unit to form lathe both arms Pillar Castings bottom external chamfered shape, to form lathe both arms Pillar Castings inner-cavity structure, side wall exterior contour, second casting mold unit of facade exterior contour, to form lathe both arms Pillar Castings side wall, inclined-plane, the third casting mold unit of top surface outer contoured shape, wherein, second casting mold unit includes the left arm forming part to forming machine tool both arms Pillar Castings left arm inner-cavity structure, right arm forming part to forming machine tool both arms Pillar Castings right arm inner-cavity structure, to crotch forming part in the both arms of crotch inner-cavity structure in forming machine tool both arms Pillar Castings both arms, external forming part to forming machine tool both arms Pillar Castings exterior contour structure.On the other hand the method for making the sand mold is provided, while additionally providing a kind of method to assemble the sand mold.
Description
Technical field
The present invention relates to casting technology fields, more specifically, are related to the sand mold for casting lathe both arms Pillar Castings
And its manufacturing method.
Background technique
Both arms Pillar Castings be applied to horizontal Machining centers, as accept lathe bed and process tool main structural components,
It is required that having good mechanical performance, and more demanding to dimensional accuracy, internal flaw.
Both arms pillar construction is as shown in Figure 1, along the inner cavity Zhou Duowei, and main body wall thickness is relatively thin, and structure is complicated.Conventional cast process
Middle difficulty is big, and quality, dimensional accuracy are all difficult to control.It is mainly reflected in: 1, left side arm 10,20 inner cavity of right arm and two-arm
Empty 30 three parts of crotch are relatively independent in structure (as shown in Figure 2), therefore in conventional casting techniques, this three parts will be designed as
Three pieces of sand cores independent of each other need individually lower core when core pattern is assembled, casting process sand core is easy to be loosened, and casting is caused to choke
Fiery defect and wall unevenness defect；2, sand core gap consolidation is inadequate when lower core, and molten iron is disorderly gone here and there when filling type, and casting fin is caused to increase
Greatly, cleaning difficulty increases；3, it needs to make dedicated snap-gauge when core pattern is assembled and carries out dimensional measurement to realize accurately controlling for wall thickness,
Operation difficulty is big and size is not easy to control.
Summary of the invention
Aiming at the problems existing in the prior art, it is integrally formed based on 3DP technology that the purpose of the present invention is to provide one kind
For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings, largely reduces sand core quantity, effectively solve
Operation difficulty and many casting flaw of such casting in sand casting.
To achieve the above object, one aspect of the present invention provides a kind of for casting the sand mold of lathe both arms Pillar Castings,
It include: the first casting mold unit to form lathe both arms Pillar Castings base exterior chamfered shape, to form lathe both arms
Pillar Castings inner-cavity structure, side wall exterior contour, facade exterior contour the second casting mold unit, to form lathe both arms column
Casting side wall, inclined-plane, top surface outer contoured shape third casting mold unit, wherein the second casting mold unit includes to forming machine
Bed both arms Pillar Castings left arm inner-cavity structure left arm forming part, to forming machine tool both arms Pillar Castings right arm inner-cavity structure
Right arm forming part, to crotch forming part in the both arms of crotch inner-cavity structure in forming machine tool both arms Pillar Castings both arms, to shape
The external forming part of lathe both arms Pillar Castings exterior contour structure.
According to one embodiment of present invention, any of the second casting mold unit relative to left arm forming part and right arm forming part
Sand mold facade opens up the sand cleaning hole through external forming part, and designing has the sand cleaning hole for combining assembly with the sand cleaning hole to glue core,
The structure of sand cleaning hole may be designed to the arbitrary shapes such as round, rectangular, anisotropic.The beneficial effect of the design is: due to the second casting
Type unit is reconfiguring multiple sand cores, and interior section profile is invisible, and there are sand removal dead angles, designs sand cleaning hole on it
Can be clean by inner cavity loose sand thorough cleaning, and inner-cavity structure all coating coating can be made in flow coat process.
According to one embodiment of present invention, the first casting mold unit, the second casting mold unit, the third casting mold unit
There is design on outer side elevation along its length hangs handle convenient for handling casting mold.
According to one embodiment of present invention, the top of the first casting mold unit, the top and the bottom of the second casting mold unit, third casting
The positioning table that the lower part design of type unit has assembly to position, positioning table are primary and secondary buckle structure, that is, each casting mold unit is mutual when assembling
The positioning table one of cooperation positioning is provided with positioning protrusion, and another one is provided with the groove matched with positioning protrusion.
According to one embodiment of present invention, the top design of third casting mold unit has riser, sprue, riser top one
Body is formed with riser buss, and mouth of a river seat is formed at the top of the sprue.The beneficial effect of the design is: avoiding riser
Set, mouth of a river seat is separately formed that the technological deficiencies such as dislocation are generated when being placed on third casting mold unit.
According to one embodiment of present invention, the centre design of each casting mold cell location platform has gripping mechanism reserved
Hole.
According to another aspect of the present invention, it also provides and a kind of forms sand mold that above-described embodiment is related to by 3D printing
Method, comprising:
S1: by computer establish design have processing capacity, running and feeding system lathe both arms Pillar Castings threedimensional model；
S2: carrying out sand core as cutter using the threedimensional model in S1 difference operation is asked to form casting mold, with " loose sand can inside casting mold
With thorough cleaning, flow coat process casting mold internal structure coating can be covered " casting mold is divided into first part, second for principle
Point and Part III, wherein base exterior chamfered shape of the first part to form lathe both arms Pillar Castings, second part
To form the inner-cavity structure, side wall exterior contour, facade exterior contour of lathe both arms Pillar Castings, Part III is to form
The outer contoured shape of the side walls of lathe both arms Pillar Castings, inclined-plane, top surface, second part is also devised with to be dissipated to clear up inner cavity
The sand cleaning hole of sand；
S3: the threedimensional model input 3D printer of each casting mold unit after segmentation is printed, the first casting mold list is obtained
First (100), the second casting mold unit (200) and third casting mold unit (300)；
The present invention also provides a kind of assembly methods of sand mold that assembly above-described embodiment is related to, comprising:
S1: the first casting mold unit (100) is placed on level ground or workbench, by second casting mold unit (200) water
Placing flat ensures the positioning table (207) and the first casting mold list of the second casting mold unit (200) on the first casting mold unit (100)
Snap fastener between the positioning table of first (100) fastens compacting；
S2: third casting mold unit (300) and the second casting mold unit (200) are assembled with S1；
S3: the gripping mechanism preformed hole by clamping screw rod (303) along each casting mold cell location platform centre runs through insertion,
Ensure that casting mold when being poured after assembly will not misplace because of the active force of molten iron.
The beneficial technical effect of the present invention lies in:
1) structure of the second casting mold unit is by three left side arm in the prior art, right arm and two-arm sky crotch independent sand cores
It is designed at one, core pattern equipment step is omitted, core pattern gap is not present, 1. reduce the sand core quantity to form inner-cavity structure,
The operation difficulty for reducing casting mold assembly, improves production efficiency；2. avoiding three parts structure in the prior art because individually
The positioning of lower core loosely, when casting generated under molten iron active force shake cause casting occur choking fire and wall unevenness the defects of, mention
High product quality；3. avoiding three parts structure in the prior art because individually lower core makes core pattern gap consolidation inadequate, fill
The molten iron technological deficiency that disorderly string causes casting fin to increase when type；4. three independent sand cores in the prior art are omitted and casting mold fills
The sizing of timing controls, therefore size is more accurate, does not have to production snap-gauge, the operation is more convenient.
2) each casting mold unit can effectively prevent each casting mold unit to misplace when assembling along all Design Orientation platforms, it is ensured that fixed
Level is true, reduces fit-up gap.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the lathe both arms Pillar Castings that the present invention refers to；
Wherein: 1, left side arm, 2, right arm；3, both arms home record；
Fig. 2 is that prior art cast technique forms lathe both arms Pillar Castings inner-cavity structures and divides core schematic diagram；
Wherein: 10, left side arm inner cavity sand core, 20, right arm inner cavity sand core, 30, two-arm sky crotch inner cavity sand core；
Fig. 3 is the schematic diagram for casting the second casting mold unit of casting shown in Fig. 1；
Fig. 4 is the schematic diagram after assembling according to an embodiment of the present invention to each casting mold unit；
Specific embodiment
Below with reference to attached drawing, embodiments of the present invention is described in detail.
As shown in figure 3, An embodiment provides a kind of for casting the sand mold of lathe both arms Pillar Castings,
It is double to form lathe including the first casting mold unit 100 to form lathe both arms Pillar Castings base exterior chamfered shape
Arm Pillar Castings inner-cavity structure, side wall exterior contour, facade exterior contour the second casting mold unit 200, it is double to form lathe
Arm Pillar Castings side wall, inclined-plane, top surface outer contoured shape third casting mold unit 300.
As shown in figure 3, the second casting mold unit 200 is integrally formed using 3D printing forming technology, structure includes to shape
The left arm forming part 201 of lathe both arms Pillar Castings left arm inner-cavity structure, to forming machine tool both arms Pillar Castings right arm inner cavity
The right arm forming part 202 of structure, to crotch forming part in the both arms of crotch inner-cavity structure in forming machine tool both arms Pillar Castings both arms
203, the external forming part 204 to forming machine tool both arms Pillar Castings exterior contour structure.The structure of second casting mold unit will
Core pattern equipment step is omitted in one in three left side arm in the prior art, right arm and two-arm sky crotch independent core designs,
Reduce the sand core quantity to form inner-cavity structure there is no core pattern gap, 1., reduces the operation difficulty of casting mold assembly, improve
Production efficiency；2. avoid three parts structure in the prior art because individually lower core positioning is loosely, in molten iron active force when casting
Lower generation shaking cause casting occur choking fire and wall unevenness the defects of, improve product quality；3. avoiding in the prior art
Three parts structure is because individually lower core makes core pattern gap consolidation inadequate, the molten iron skill that disorderly string causes casting fin to increase when filling type
Art defect；4. sizing when three independent sand cores in the prior art and casting mold assembly is omitted controls, therefore size is more smart
Really, production snap-gauge is not had to, the operation is more convenient.
Referring again to Fig. 3, any sand of the second casting mold unit 200 relative to left arm forming part 201 and right arm forming part 202
Type facade opens up the sand cleaning hole through external forming part 204, and designing has the sand cleaning hole for combining assembly with the sand cleaning hole to glue core
205, the structure of the sand cleaning hole may be designed to the arbitrary shapes such as round, rectangular, anisotropic.After sand core hardening, casting mold unit is cleared up
Loose sand, the loose sand at the dead angle of inner cavity are thoroughly cleared up by sand cleaning hole, and loose sand cleans out, and sand core is transferred to flow coat process,
All positions for forming casting structure are all applied into coating, coating can be applied by sand cleaning hole for inner cavity dead angle.
Referring again to Fig. 3, the top of the first casting mold unit 100, the top and the bottom of the second casting mold unit 200, described
The positioning table 207 that the lower part design of three casting mold units 300 has assembly to position, positioning table 207 are primary and secondary buckle structure, that is, each casting mold
The positioning table one positioned that cooperates when unit assembles is provided with positioning protrusion, and another one is provided with to be matched with positioning protrusion
Groove, each casting mold unit assemble when be not susceptible to dislocation, accurate positioning, reduction fit-up gap.
Referring to Fig. 4, the first casting mold unit 100, the second casting mold unit 200, the third casting mold unit 300 are along length
Design has hanging 206 convenient for handling casting mold on the outer side elevation in direction.
Each casting mold unit for passing through applying coating above, is assembled after coating is dry, for the sand mold of heavier-weight,
Casting mold unit is sling into assembly 206 along hanging using crane rope, when assembly, each casting mold unit must be along primary and secondary positioning table standard
Standby positioning.
Referring again to Fig. 4, the centre design of each casting mold cell location platform 207 has gripping mechanism preformed hole 208.Assembly
After good each casting mold unit, by clamping screw rod along gripping mechanism preformed hole 208 through insertion, it is ensured that the casting mold after assembling when casting is not
It can misplace because of the active force of molten iron.
Referring again to Fig. 4, the top design of third casting mold unit 300 has riser, directly pours in one embodiment of the present of invention
Road, riser top are formed with riser buss 301, and mouth of a river seat 302 is formed at the top of sprue.The present invention can also be provided separately
One embodiment, can also be separately formed for riser buss 301 and mouth of a river seat 302, is respectively placed in after the assembly of each casting mold unit
At the riser and sprue at 300 top of third casting mold unit.
According to another aspect of the present invention, it also provides and a kind of forms sand mold that above-described embodiment is related to by 3D printing
Method, comprising:
S1: by computer establish design have processing capacity, running and feeding system lathe both arms Pillar Castings threedimensional model；
S2: carrying out sand core as cutter using the threedimensional model in S1 difference operation is asked to form casting mold, with " loose sand can inside casting mold
With thorough cleaning, flow coat process casting mold internal structure coating can be covered " casting mold is divided into first part, second for principle
Point and Part III, wherein base exterior chamfered shape of the first part to form lathe both arms Pillar Castings, second part
To form the inner-cavity structure, side wall exterior contour, facade exterior contour of lathe both arms Pillar Castings, Part III is to form
The outer contoured shape of the side walls of lathe both arms Pillar Castings, inclined-plane, top surface, second part is also devised with to be dissipated to clear up inner cavity
The sand cleaning hole of sand；
S3: the threedimensional model input 3D printer of each casting mold unit after segmentation is printed, the first casting mold list is obtained
First 100, second casting mold unit 200 and third casting mold unit 300；
The present invention also provides a kind of assembly methods of sand mold that assembly above-described embodiment is related to, comprising:
S1: the first casting mold unit 100 is placed on level ground or workbench, and 200 level of the second casting mold unit is put
It sets on the first casting mold unit 100, and ensures the positioning of the positioning table 207 and the first casting mold unit 100 of the second casting mold unit 200
Snap fastener between platform fastens compacting；
S2: third casting mold unit 300 and the second casting mold unit 200 are assembled with S1；
S3: the gripping mechanism preformed hole by clamping screw rod 303 along each casting mold cell location platform centre runs through insertion, really
Casting mold when protecting casting after assembly will not misplace because of the active force of molten iron.
Claims (6)
1. a kind of for casting the sand mold of lathe both arms Pillar Castings characterized by comprising
To form the first casting mold unit (100) of lathe both arms Pillar Castings base exterior chamfered shape, to form lathe
Both arms Pillar Castings inner-cavity structure, side wall exterior contour, facade exterior contour the second casting mold unit (200), to form machine
Bed both arms Pillar Castings side wall, inclined-plane, top surface outer contoured shape third casting mold unit (300),
Wherein, the second casting mold unit (200) is integrally formed using 3D printing forming technology, and structure includes described to shape
It is the left arm forming part (201) of lathe both arms Pillar Castings left arm inner-cavity structure, right to shape the lathe both arms Pillar Castings
The right arm forming part (202) of arm inner-cavity structure, pair to shape crotch inner-cavity structure in the lathe both arms Pillar Castings both arms
Crotch forming part (203), the external forming part (204) to shape the lathe both arms Pillar Castings exterior contour structure in arm.
2. sand mold according to claim 1, which is characterized in that the second casting mold unit (200) forms relative to left arm
Any one sand mold facade of portion (201) and right arm forming part (202) opens up the sand cleaning hole through external forming part (204), and
Design has the sand cleaning hole for combining assembly with the sand cleaning hole to glue core (205).
3. sand mold according to claim 1, which is characterized in that the first casting mold unit (100), the second casting mold list
There is design on first (200), the outer side elevation of the third casting mold unit (300) along its length hangs handle convenient for handling casting mold
(206)。
4. sand mold according to claim 1, which is characterized in that the top of the first casting mold unit (100), described second
The positioning table (207) that the lower part design of the top and the bottom of casting mold unit (200), the third casting mold unit (300) has assembly to position,
Positioning table (207) is primary and secondary buckle structure.
5. sand mold according to claim 1, which is characterized in that the top design of the third casting mold unit (300), which has, to be emitted
Mouth, sprue, the riser top are formed with riser buss (301), and mouth of a river seat is formed at the top of the sprue
(302)。
6. sand mold according to claim 4, which is characterized in that the centre design of the positioning table (207) has clamping
Device preformed hole (208).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090944.8A CN106670383B (en) | 2016-11-30 | 2016-11-30 | For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090944.8A CN106670383B (en) | 2016-11-30 | 2016-11-30 | For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings |
Publications (2)
| Publication Number | Publication Date |
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| CN106670383A CN106670383A (en) | 2017-05-17 |
| CN106670383B true CN106670383B (en) | 2019-05-21 |
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| CN201611090944.8A Active CN106670383B (en) | 2016-11-30 | 2016-11-30 | For casting the sand mold and its manufacturing method of lathe both arms Pillar Castings |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659876B (en) * | 2018-01-26 | 2022-04-19 | 共享智能铸造产业创新中心有限公司 | Process method for casting thin-wall aluminum alloy casting at low pressure |
| CN108296454A (en) * | 2018-01-26 | 2018-07-20 | 共享智能铸造产业创新中心有限公司 | The parting and its parting scheme of impeller class product |
| CN108246979B (en) * | 2018-02-28 | 2020-01-07 | 共享智能铸造产业创新中心有限公司 | Casting method of shaft casting |
| CN108480560B (en) * | 2018-06-20 | 2020-12-18 | 中国航发南方工业有限公司 | Casting shape adjusting method and wax mold die set for adjusting casting shape |
| CN108817316A (en) * | 2018-06-29 | 2018-11-16 | 共享智能铸造产业创新中心有限公司 | A kind of sand mold classifying method of gear box casing casting |
| CN109047657A (en) * | 2018-10-22 | 2018-12-21 | 太仓黑龙智能工业科技有限公司 | A kind of 3 D-printing pressure shell sand mould and its manufacture craft |
| CN114799073B (en) * | 2022-05-26 | 2023-06-13 | 共享铸钢有限公司 | Blind riser sand core structure and casting sand core structure |
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| CN103537634A (en) * | 2013-11-14 | 2014-01-29 | 宁夏共享集团有限责任公司 | Method for integrally casting upright post and lathe bed |
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| CN103537634A (en) * | 2013-11-14 | 2014-01-29 | 宁夏共享集团有限责任公司 | Method for integrally casting upright post and lathe bed |
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