CN208644022U - A kind of thin and tall mold casting mould assembling positioning pin - Google Patents
A kind of thin and tall mold casting mould assembling positioning pin Download PDFInfo
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- CN208644022U CN208644022U CN201821144797.2U CN201821144797U CN208644022U CN 208644022 U CN208644022 U CN 208644022U CN 201821144797 U CN201821144797 U CN 201821144797U CN 208644022 U CN208644022 U CN 208644022U
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- positioning pin
- mould assembling
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- tall
- location dimples
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Abstract
The utility model discloses a kind of thin and tall mold casting mould assembling positioning pins, including dowel body, dowel body is broad in the middle, the small asymmetric frustum of a cone overall structure in both ends, upper and lower part can be divided into, top is the lesser circular cone stage body of thin and tall type taper, lower part is the biggish circular cone stage body of taper, top and lower part boundary are circular cone stage body bottom surface, when top box sand mold and nowel sand mold mould assembling, the lower part of positioning pin is placed in the lower location dimples matched with lower shape, the top of positioning pin is directed at the upper location dimples matched with shaped upper part, accurate positionin mould assembling is hung convenient for row.The mould assembling positioning pin, it is simple and reliable, pass through the upper location dimples mould assembling height for increasing the upper height of positioning pin and shaped upper part matches therewith, the accurate positionin mould assembling of tall and big thin-wall box body casting is facilitated to operate, mould assembling drawback and the mould assembling for avoiding conventional symmetrical positioning pin are unstable, are easy to happen and wipe sand, false type question.
Description
Technical field
The utility model belongs to machine casting field, and in particular to a kind of thin and tall mold casting mould assembling positioning pin.
Background technique
In hardened sand casting, sand mold hardens molding, core under upper painting, upper and lower sand mold mould assembling.Mould assembling is last one of moulding
Critical process, it is desirable that engage accurate positioning when upper and lower sand mold mould assembling, horizontal four direction and vertical direction cannot have deviation.It is no
Casting mismatch then will be will cause, size is not inconsistent, casting mold runout, casting grinding workload increase or scrap.
In traditional hardening sand molding production process, usually using the upper location dimples of top box sand mold, nowel sand mold
Lower location dimples and the metal fitting nail of structure symmetrical above and below position mould assembling.But for tall and big thin-wall box body casting, due to upper
Case sand core is high, and cavity space is small, in mould assembling operating process, there is very big drawback, be easy to cause mould assembling unstable, type chamber and sand
Core occurs to wipe sand, shift defect.Therefore the mould positioning to metal mould assembling positioning pin and corresponding sand mold up and down is needed
Pin improves.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of thin and tall mold casting mould assembling positioning pin,
The stationarity for improving mould assembling positioning prevents from wiping sand, the generation of shift defect.
In order to solve the above technical problems, the technical solution of the utility model are as follows:
The thin and tall mold casting mould assembling positioning pin, including dowel body, the positioning pin are small not right in broad in the middle, both ends
Claim frustum of a cone overall structure, it is characterised in that: dowel body can be divided into upper and lower part, and top is that thin and tall type taper is lesser
Circular cone stage body, lower part are the biggish circular cone stage body of taper, top and lower part boundary be circular cone stage body bottom surface and top box sand mold and
When the die joint of nowel sand mold mould assembling, top box sand mold and nowel sand mold mould assembling, the lower part of positioning pin is placed in and lower shape phase
In the lower location dimples of cooperation, the top of positioning pin is directed at the upper location dimples matched with shaped upper part, and it is accurate to hang convenient for row
Position mould assembling.
Preferably, the upper height of positioning pin is 2-3 times of the lower height of positioning pin.
Preferably, the upper location dimples depth is 2-3 times of lower location dimples depth.
Preferably, the upper location dimples are that the lesser frustum of a cone of taper that matches with the shaped upper part of positioning pin is recessed
Hole, the lower location dimples are the biggish frustum of a cone pit of taper matched with the lower shape of positioning pin.
Compared with prior art, the utility model has the beneficial effects that
When top box sand mold and nowel sand mold mould assembling, the lower part of positioning pin is set for a kind of thin and tall mold casting mould assembling positioning pin
In the lower location dimples matched with lower shape, the upper positioning that the top alignment of positioning pin is matched with shaped upper part is recessed
Hole facilitates row to hang accurate positionin mould assembling, is suitable for the mould assembling operation of tall and big thin-wall box body casting.The casting mould assembling positioning pin, knot
Structure is simple, positions reliable convenient, improves row and cods the stationarity of type positioning mould assembling, prevents type chamber and sand core from occurring to wipe sand, mistake
Type defect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of thin and tall mold casting mould assembling positioning pin.
Fig. 2 is a kind of mould assembling structural schematic diagram of thin and tall mold casting mould assembling positioning pin.
Wherein, 1-positioning pin, 11-tops, 12-lower parts, 2-top box sand molds, 21-upper location dimples, 3-nowel sand
Type, 31-lower location dimples.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 2, a kind of thin and tall mold casting mould assembling positioning pin, including 1 ontology of positioning pin, 1 ontology of positioning pin are
Asymmetric frustum of a cone overall structure broad in the middle, both ends are small, 1 ontology of positioning pin can be divided into top 11 and lower part 12, and top 11 is
The thin and tall lesser circular cone stage body of type taper, lower part 12 are the biggish circular cone stage body of taper, and top 11 and 12 boundary of lower part are circle
When the die joint of cone table bottom surface and top box sand mold 2 and 3 mould assembling of nowel sand mold, top box sand mold 2 and nowel 3 mould assembling of sand mold, it will determine
The lower part 12 of position pin 1 is placed in the lower location dimples 31 matched with 12 shape of lower part, the alignment of top 11 of positioning pin 1 and top
The upper location dimples 21 that 11 shapes match hang accurate positionin mould assembling convenient for row.
The material of positioning pin 3 is process using round steel or aluminum alloy materials, having a size of top upper end Ф 40mm, boundary
Locate middle-end Ф 80mm, lower part lower end Ф 50mm, total height 310mm.
The upper location dimples 11 of top box sand mold 1 are having a size of (40/ Ф 80 of Ф) × 240mm, the lower location dimples of nowel sand mold 2
21 having a size of (50/ Ф 80 of Ф) × 80mm.
When general top box sand mold 2 and nowel 3 mould assembling of sand mold, one case one group of 3 positioning pin 3 is needed, to guarantee upper nowel sand
Mould assembling is accurately positioned in type.
Claims (4)
1. a kind of thin and tall mold casting mould assembling positioning pin, including positioning pin (1) ontology, the positioning pin (1) is broad in the middle, both ends are small
Asymmetric frustum of a cone overall structure, it is characterised in that: positioning pin (1) ontology can be divided into top (11) and lower part (12), top
It (11) is the lesser circular cone stage body of thin and tall type taper, lower part (12) are the biggish circular cone stage body of taper, top (11) and lower part
(12) when boundary is circular cone stage body bottom surface, top box sand mold (2) and nowel sand mold (3) mould assembling, by the lower part (12) of positioning pin (1)
It is placed in the lower location dimples (31) matched with lower part (12) shape, top (11) alignment and top (11) of positioning pin (1)
The upper location dimples (21) that shape matches hang accurate positionin mould assembling convenient for row.
2. a kind of thin and tall mold casting mould assembling positioning pin according to claim 1, it is characterised in that: the positioning pin (1)
Upper height is 2-3 times of the lower height of positioning pin (1).
3. a kind of thin and tall mold casting mould assembling positioning pin according to claim 1, it is characterised in that: the upper location dimples
(21) depth is 2-3 times of lower location dimples (31) depth.
4. a kind of thin and tall mold casting mould assembling positioning pin according to claim 1, it is characterised in that: the upper location dimples
It (21) is the lesser frustum of a cone pit of taper matched with top (11) shape of positioning pin (1), the lower location dimples
(31) the biggish frustum of a cone pit of taper to be matched with lower part (12) shape of positioning pin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144797.2U CN208644022U (en) | 2018-07-19 | 2018-07-19 | A kind of thin and tall mold casting mould assembling positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144797.2U CN208644022U (en) | 2018-07-19 | 2018-07-19 | A kind of thin and tall mold casting mould assembling positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208644022U true CN208644022U (en) | 2019-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821144797.2U Active CN208644022U (en) | 2018-07-19 | 2018-07-19 | A kind of thin and tall mold casting mould assembling positioning pin |
Country Status (1)
| Country | Link |
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| CN (1) | CN208644022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746513A (en) * | 2018-07-19 | 2018-11-06 | 溧阳市联华机械制造有限公司 | A kind of thin and tall mold casting mould assembling positioning pin |
-
2018
- 2018-07-19 CN CN201821144797.2U patent/CN208644022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746513A (en) * | 2018-07-19 | 2018-11-06 | 溧阳市联华机械制造有限公司 | A kind of thin and tall mold casting mould assembling positioning pin |
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