CN112775395A - Self-locking structure investment mold for medium-size and large-size shell castings and locking method - Google Patents
Self-locking structure investment mold for medium-size and large-size shell castings and locking method Download PDFInfo
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- CN112775395A CN112775395A CN202011551889.4A CN202011551889A CN112775395A CN 112775395 A CN112775395 A CN 112775395A CN 202011551889 A CN202011551889 A CN 202011551889A CN 112775395 A CN112775395 A CN 112775395A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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Abstract
The invention relates to a self-locking structure investment mold for middle-size and large-size shell castings, which comprises a plurality of locking strips, a bottom plate, an inclined pressing plate, a cover plate and a prying plate, wherein the prying plate is installed on the bottom plate, a groove matched with the bottom of the locking strips is formed in the bottom plate, the locking strips are inserted into the groove and attached to the outer wall of a loose piece to be locked, the cover plate is hooped outside the top of the loose piece to be locked, the inclined pressing plate is arranged on the cover plate, and the inclined pressing plate is positioned above the locking strips. The problem of prior art adopt the bolt mode to when locking between each loose piece, the workman is at the mould assembly and the dismouting bolt of drawing a mould repeatedly, working strength is very big, can reduce the technical problem of the life of mould simultaneously by a wide margin is provided one kind to well jumbo size casing class foundry goods fired mold, under the complicated more condition of loose piece, the peripheral structure make full use of design of mould realizes the self-locking of mould, avoids using a large amount of screw locking mould, in order to increase substantially the life of mould, and reduce workman's intensity of labour, improve product production efficiency.
Description
Technical Field
The invention relates to a self-locking structure investment mold for a medium-size and large-size shell casting and a locking method, and belongs to the technical field of titanium and titanium alloy investment precision casting.
Background
Investment precision casting has unique advantages in the aspect of casting precision, complex and thin-wall castings, castings with high size precision and surface finish quality can be easily manufactured, and complex and thin-wall titanium alloy castings can be manufactured by adopting the investment precision casting process, such as: aircraft engine blades, aerospace vehicle structural members, and the like. The fuel tank shell type casting is a main bearing part of the aircraft, is also a main power source of the aircraft in the flight process, and has higher requirements on the tightness and mechanical properties of workpieces. The fuel tank shell type casting is generally in a circular ring shape and is provided with a complex inner cavity, so that a plurality of movable blocks of the investment mold metal mold are provided. When adopting the bolt mode to lock between each loose piece, the workman is at the mould assembly and the dismouting bolt of drawing the mould repeatedly, and working strength is very big, can reduce the life of mould simultaneously by a wide margin. Therefore, it is necessary to design the peripheral structure of the mold to realize the self-locking function, reduce the labor intensity of workers and prolong the service life of the mold.
Disclosure of Invention
The invention provides a self-locking structure investment mold for a medium-size and large-size shell type casting and a locking method, aiming at solving the technical problems that when the prior art adopts a bolt mode to lock all movable blocks, workers repeatedly assemble and take the mold to disassemble and assemble the bolt, the working intensity is high, and the service life of the mold can be greatly reduced.
The invention provides a self-locking structure investment mold for middle-size and large-size shell castings, which comprises a plurality of locking strips, a bottom plate, an inclined pressing plate, a cover plate and a prying plate, wherein the prying plate is installed on the bottom plate, a groove matched with the bottom of the locking strips is formed in the bottom plate, the locking strips are inserted into the groove and attached to the outer wall of a loose piece to be locked, the cover plate is hooped outside the top of the loose piece to be locked, the inclined pressing plate is arranged on the cover plate, and the inclined pressing plate is positioned above the locking strips.
Preferably, the cover plate is circular ring shaped.
A locking method of a self-locking structure investment mold for middle-size and large-size shell castings specifically comprises the following steps:
(1) the locking strip inserted into the bottom plate can move in a certain limit in the vertical direction, and when the inclined pressing plate does not fall down, the cover plate plays a role in preliminary positioning of the loose piece to be locked;
(2) when the inclined pressing plate falls down, the locking strip is pressed down and locked, and the loose piece to be locked is locked to play a fastening role;
(3) after the inclined pressing plate rises, the locking strip is upwards separated from the bottom plate, and after the fastening force between the locking movable blocks disappears, the mold is taken out.
The self-locking structure investment mold for the middle-size and large-size shell castings and the locking method have the beneficial effects that:
1. according to the self-locking structure investment mold for the middle-size and large-size shell castings, due to the reasonable design of the peripheral structure of the mold, the mold is provided with the self-locking structure, and the mold is prevented from being locked by a large number of bolts.
2. According to the self-locking structure investment mold for the middle-size and large-size shell castings, the locking strip inserted into the bottom plate can move in a certain limit in the vertical direction, and the locking effect during locking is guaranteed.
3. According to the investment mold with the self-locking structure for the middle-size and large-size shell castings, when the inclined pressing plate does not fall down, the cover plate is used for initially positioning the inner sliding block and the outer sliding block, so that the movable blocks are prevented from being greatly deviated and damaged after pressure is applied.
4. According to the self-locking structure investment mold for the middle-size and large-size shell castings, when the inclined pressing plate falls down, the locking strip is pressed down, the upper section and the lower section of the locking strip are locked, and the movable blocks of the mold are locked to play a fastening role; after the inclined pressing plate rises, the locking strips are separated from the bottom plate upwards, the fastening force between the movable blocks of the die disappears, and the die is taken.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a structural schematic diagram I of a self-locking structure investment mold for a medium-size and large-size shell casting according to the invention;
FIG. 2 is a schematic structural view of a pry plate according to the present invention;
the locking device comprises a locking strip 1, a bottom plate 2, an inclined pressing plate 3, a cover plate 4 and a prying plate 5.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1-2. This embodiment well jumbo size casing class foundry goods from locking structure fired mold, including a plurality of locking strip 1, bottom plate 2, ramp 3, apron 4 and pinch plate 5, install pinch plate 5 on bottom plate 2, the product that needs the suppression is placed on pinch plate 5, then places on the product and treats the locking loose piece, be provided with on bottom plate 2 with 1 bottom complex recess of locking strip, in a plurality of locking strip 1 insert the recess, with the outer wall laminating of treating the locking loose piece, the top of treating the locking loose piece hoops outward and has apron 4, be provided with ramp 3 on the apron 4, ramp 3 is located 1 tops of locking strip.
The cover plate 4 is in the shape of a circular ring. Before the inclined pressing plate 3 does not fall down, the cover plate 4 is used for initially positioning the loose piece to be locked.
After the inclined pressing plate 3 is opened, the locking strip 1 is inserted into the locking part of the bottom plate 2 to be separated from the bottom plate, and the movable block to be locked can slide backwards
When the inclined pressing plate 3 falls down, the locking strip 1 is pressed down to be locked.
After all the sliding block loose pieces are taken out, if the pressed wax piece products are not easy to take out, the prying plate 5 needs to be pried.
A locking method of a self-locking structure investment mold for middle-size and large-size shell castings specifically comprises the following steps:
(1) the locking strip 1 inserted into the bottom plate 2 can move in a certain limit in the vertical direction, and when the inclined pressing plate 3 does not fall down, the cover plate 4 is used for initially positioning the loose piece to be locked;
(2) when the inclined pressing plate 3 falls down, the locking strip 1 is pressed down, the locking strip 1 is locked, and the loose piece to be locked is locked to play a fastening role;
(3) after the inclined pressing plate 3 rises, the locking strip 1 is upwards separated from the bottom plate 2, and after the fastening force between the locking loose pieces disappears, the mold is taken out.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a well jumbo size casing class foundry goods is from locking structure fired mold, its characterized in that, includes a plurality of locking strips (1), bottom plate (2), ramp (3), apron (4) and sled board (5), install sled board (5) on bottom plate (2), be provided with on bottom plate (2) with locking strip (1) bottom complex recess, a plurality of locking strips (1) insert the recess in, with the outer wall laminating of treating the locking loose piece, the top of treating the locking loose piece has cup jointed apron (4) outward, be provided with ramp (3) on apron (4), ramp (3) are located locking strip (1) top.
2. The investment mold of the self-locking structure for the middle and large-size shell-like casting according to claim 1, wherein the cover plate (4) is in the shape of a circular ring.
3. The locking method of the self-locking structure investment mold for the middle-large-size shell casting according to claim 1 is characterized by comprising the following steps:
(1) the locking strip (1) inserted into the bottom plate (2) can move in a certain limit in the vertical direction, and when the inclined pressing plate (3) does not fall down, the cover plate (4) is used for initially positioning the loose piece to be locked;
(2) when the inclined pressing plate (3) falls down, the locking strip (1) is pressed down, the locking strip (1) is locked, and the loose piece to be locked is locked to play a fastening role;
(3) after the inclined pressing plate (3) rises, the locking strip (1) is upwards separated from the bottom plate (2), and mold removal operation is carried out when the fastening force between the locking loose pieces disappears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551889.4A CN112775395A (en) | 2020-12-24 | 2020-12-24 | Self-locking structure investment mold for medium-size and large-size shell castings and locking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551889.4A CN112775395A (en) | 2020-12-24 | 2020-12-24 | Self-locking structure investment mold for medium-size and large-size shell castings and locking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112775395A true CN112775395A (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011551889.4A Pending CN112775395A (en) | 2020-12-24 | 2020-12-24 | Self-locking structure investment mold for medium-size and large-size shell castings and locking method |
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| CN (1) | CN112775395A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2060535A1 (en) * | 1970-12-09 | 1972-06-22 | Roeth Georg | Mould clamping enclosure - for multipart sand casting mould |
| CN201279574Y (en) * | 2008-10-17 | 2009-07-29 | 贵州安吉航空精密铸造有限责任公司 | Large Combined Die for Titanium Alloy Cabin Castings |
| CN203495133U (en) * | 2013-07-09 | 2014-03-26 | 贵州安吉航空精密铸造有限责任公司 | Integral wax pattern forming mould of frame type titanium alloy casting piece |
| CN107570662A (en) * | 2017-09-20 | 2018-01-12 | 北京星航机电装备有限公司 | A kind of pressure wax-pattern tool of Intermediate Gray interlayer cavity |
| CN209502897U (en) * | 2018-12-21 | 2019-10-18 | 中国航发南方工业有限公司 | Template mould structure |
| JP2020510539A (en) * | 2017-03-15 | 2020-04-09 | ネマク, ソシエダ アノニマ ブルサーティリ デ カピタル バリアブレNemak, S.A.B. de C.V. | Equipment for injecting casting core |
-
2020
- 2020-12-24 CN CN202011551889.4A patent/CN112775395A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2060535A1 (en) * | 1970-12-09 | 1972-06-22 | Roeth Georg | Mould clamping enclosure - for multipart sand casting mould |
| CN201279574Y (en) * | 2008-10-17 | 2009-07-29 | 贵州安吉航空精密铸造有限责任公司 | Large Combined Die for Titanium Alloy Cabin Castings |
| CN203495133U (en) * | 2013-07-09 | 2014-03-26 | 贵州安吉航空精密铸造有限责任公司 | Integral wax pattern forming mould of frame type titanium alloy casting piece |
| JP2020510539A (en) * | 2017-03-15 | 2020-04-09 | ネマク, ソシエダ アノニマ ブルサーティリ デ カピタル バリアブレNemak, S.A.B. de C.V. | Equipment for injecting casting core |
| CN107570662A (en) * | 2017-09-20 | 2018-01-12 | 北京星航机电装备有限公司 | A kind of pressure wax-pattern tool of Intermediate Gray interlayer cavity |
| CN209502897U (en) * | 2018-12-21 | 2019-10-18 | 中国航发南方工业有限公司 | Template mould structure |
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