CN107745107B - Sand removing hole structure of casting - Google Patents
Sand removing hole structure of casting Download PDFInfo
- Publication number
- CN107745107B CN107745107B CN201711064906.XA CN201711064906A CN107745107B CN 107745107 B CN107745107 B CN 107745107B CN 201711064906 A CN201711064906 A CN 201711064906A CN 107745107 B CN107745107 B CN 107745107B
- Authority
- CN
- China
- Prior art keywords
- casting
- sand
- sand removal
- removal hole
- hole structure
- 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.)
- Active
Links
- 239000004576 sand Substances 0.000 title claims abstract description 47
- 238000005266 casting Methods 0.000 title claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 26
- 229910052742 iron Inorganic materials 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a casting sand removal hole structure which is used for removing sand of castings. The sand cleaning holes are arranged on the casting; the orifice plane is positioned at the outer side of the sand removal hole; the Kong Wei plane is positioned at the inner side of the sand removing hole; the at least three cutting grooves are positioned on the plane of the hole tail, are communicated with the sand cleaning holes and are uniformly distributed along the center of the sand cleaning holes. The sand removal hole structure of the casting can be beneficial to reducing the difficulty and the cost for cleaning the iron skips in the inner cavity of the casting, can improve the cleanliness of the inner cavity of the casting, and ensures the product quality of the casting.
Description
Technical Field
The invention relates to the field of mechanical design and manufacture, in particular to a casting sand removal hole structure.
Background
In the field of mechanical engineering, many parts are produced by adopting a casting process, for box castings or castings containing inner cavities, a sand removal hole structure is often required to be designed, molding sand in the inner cavities is cleaned out from the sand removal holes after casting molding, the sand removal holes are machined by a machining method, and the sand removal holes are blocked by a plug after finish machining, so that the complete inner cavity structure of the castings can be obtained.
The conventional casting sand removal hole structure has the following defects: (1) During the course of working, the hole tail end produces the iron and cuts the group easily and drop the foundry goods inner chamber the inside, because the iron cuts the group great, the sand removal hole is less relatively again, consequently falls the iron and cuts the group clearance degree of difficulty in foundry goods inner chamber the inside extremely big, and the manual resource that the clearance process input is more, and the clearance cost is higher. (2) In addition, the iron shaving block can be firmly clamped in the corner of the inner cavity, and the deep corner of the cleaning process is difficult to check, and the iron shaving block can be leaked in the corner of the inner cavity, so that the cleaning is incomplete, the cleanliness of the inner cavity of the casting is affected, and the product quality of the casting is affected. How to overcome the defects, improve the sand cleaning efficiency and reduce the labor intensity is a problem to be solved in the field.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a casting sand removal hole structure, so that the defects that in the prior art, because iron shaving groups are large and the sand removal holes are relatively small, the difficulty in cleaning the iron shaving groups falling into the inner cavity of a casting is extremely high, the labor resources input in the cleaning process are more, the cleaning cost is high, and the iron shaving groups can be leaked into corners of the inner cavity, so that the cleaning is incomplete, the cleanliness of the inner cavity of the casting is influenced, and the product quality of the casting is influenced are overcome.
In order to achieve the above object, the present invention provides a sand removal hole structure for castings, which is used for sand removal of castings, and comprises a sand removal hole, an orifice plane, a Kong Wei plane and at least three cutting slots. The sand cleaning holes are arranged on the casting; the orifice plane is positioned at the outer side of the sand removal hole; the Kong Wei plane is positioned at the inner side of the sand removing hole; the at least three cutting grooves are positioned on the plane of the hole tail, are communicated with the sand cleaning holes and are uniformly distributed along the center of the sand cleaning holes.
Preferably, in the above technical solution, the shape of the cutting groove is U-shaped or square.
Compared with the prior art, the casting sand removal hole structure has the beneficial effects of being beneficial to reducing the cleaning difficulty and the cleaning cost of the casting inner cavity iron shaving, improving the cleanliness of the casting inner cavity and ensuring the product quality of the casting.
Drawings
FIG. 1 is a cross-sectional view of a casting sand removal aperture structure according to the present invention.
Fig. 2 is an a-direction partial view of a casting sand removal hole structure according to the present invention.
The main reference numerals illustrate:
1-sand removal holes, 2-orifice planes, 3-castings, 4-cutting grooves and 5-Kong Wei planes.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 2, a casting sand removal hole structure according to an embodiment of the present invention adds a cutting groove 4 structure at the tail of the sand removal hole 1, and the cutting groove 4 is disposed on a hole tail plane 5 inside the casting 3 and communicates with the sand removal hole 1.
In some embodiments, the number of cutting flutes 4 is at least 3, evenly distributed along the center of the sand removal hole 1. Under the condition that space allows, the number of the cutting grooves 4 is as large as possible, and the more the number of the cutting grooves 4 is, the finer and shorter the iron cutting is during processing, so that the clearance of the iron cutting of the inner cavity of the casting can be more facilitated.
In some embodiments, the break groove 4 is shaped like a "U" or square.
In some embodiments, the cutting flutes 4 have a depth of 1.5mm to 5mm and a width of 3mm to 10mm. According to the specific design, the larger the diameter of the sand removal hole 1d is, the larger the depth and the width of the cutting groove 4 are, which is more beneficial to preventing the formation of the iron shaving mass and cleaning the inner cavity of the casting.
In summary, the casting sand removal hole structure disclosed by the invention has the advantages of being beneficial to reducing the difficulty and cost for cleaning the inner cavity of the casting, improving the cleanliness of the inner cavity of the casting and ensuring the product quality of the casting.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. A casting sand removal hole structure for sand removal of a casting, the casting sand removal hole structure comprising:
sand removal holes provided on the castings;
an orifice plane located outside of the sand removal hole;
kong Wei plane, it locates at the inboard of the said sand cleaning hole; and
the at least three cutting grooves are positioned on the Kong Wei plane, are communicated with the sand cleaning holes and are uniformly distributed along the centers of the sand cleaning holes;
the cutting groove is U-shaped or square, the depth of the cutting groove is 1.5-5 mm, and the width of the cutting groove is 3-10 mm;
wherein the number of the cutting grooves increases with the diameter of the sand cleaning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064906.XA CN107745107B (en) | 2017-11-02 | 2017-11-02 | Sand removing hole structure of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064906.XA CN107745107B (en) | 2017-11-02 | 2017-11-02 | Sand removing hole structure of casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107745107A CN107745107A (en) | 2018-03-02 |
| CN107745107B true CN107745107B (en) | 2023-11-24 |
Family
ID=61253463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711064906.XA Active CN107745107B (en) | 2017-11-02 | 2017-11-02 | Sand removing hole structure of casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107745107B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356231B (en) * | 2018-04-27 | 2023-01-03 | 共享智能铸造产业创新中心有限公司 | Lock core structure of 3D printing sand mould |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012140508A1 (en) * | 2011-04-13 | 2012-10-18 | Toyota Jidosha Kabushiki Kaisha | Casting core and production method of the casting core |
| CN106311985A (en) * | 2016-09-30 | 2017-01-11 | 宁夏共享模具有限公司 | 3D (three-dimensional) printing sand core |
| CN106424581A (en) * | 2016-10-27 | 2017-02-22 | 宁夏共享模具有限公司 | Sand removing structure for 3D printed sand core |
-
2017
- 2017-11-02 CN CN201711064906.XA patent/CN107745107B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012140508A1 (en) * | 2011-04-13 | 2012-10-18 | Toyota Jidosha Kabushiki Kaisha | Casting core and production method of the casting core |
| CN106311985A (en) * | 2016-09-30 | 2017-01-11 | 宁夏共享模具有限公司 | 3D (three-dimensional) printing sand core |
| CN106424581A (en) * | 2016-10-27 | 2017-02-22 | 宁夏共享模具有限公司 | Sand removing structure for 3D printed sand core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107745107A (en) | 2018-03-02 |
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