CN212329394U - Two-end water injection type water expansion forming device - Google Patents
Two-end water injection type water expansion forming device Download PDFInfo
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- CN212329394U CN212329394U CN201922417879.0U CN201922417879U CN212329394U CN 212329394 U CN212329394 U CN 212329394U CN 201922417879 U CN201922417879 U CN 201922417879U CN 212329394 U CN212329394 U CN 212329394U
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- lower die
- water
- fixing plate
- die
- upper die
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Abstract
The utility model belongs to the field of water expansion equipment, and provides a two-end water injection type water expansion forming device, which comprises a bottom fixing plate, wherein the center of the upper end surface of the bottom fixing plate is provided with a lower die, the upper end of the lower die is provided with an upper die, and the upper die and the lower die are buckled and form an external cavity of a finished pipe fitting; the upper end surface of the bottom fixing plate is respectively provided with a telescopic oil cylinder on two sides of the lower die, the front end of a telescopic rod of each telescopic oil cylinder is connected with a push rod, the middle part of the push rod is provided with a water filling port, the front end of the push rod is connected with a water outlet pipe, a water delivery pipe is arranged inside the push rod and communicates the water filling port with the water outlet pipe, and a sealing element is sleeved outside the front end of the water outlet pipe; the water injection port is connected with a pressurizing water supply device through a pipeline. The utility model provides a both ends water injection formula water inflation forming device, simple structure, convenient operation, the inflation technology of complete complicated pipe fitting interlude rapidly, the size is easily controlled, and production efficiency is high.
Description
Technical Field
The utility model relates to a water bloated device especially relates to a both ends water injection formula water bloated forming device to crooked complicated pipe fitting.
Background
In the production process of automobile parts, parts with inner cavities are often required to be machined, for the parts, a common external die cannot be machined, and for the modeling machining of a bent complex pipe fitting, the machining from the outside is more difficult, the size is difficult to control, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming current defect, providing a both ends water injection formula water inflation forming device, the difficult problem of accuse, production efficiency hangs down of size in solving crooked complicated pipe fitting molding.
In order to solve the technical problem, the utility model provides a following technical scheme:
a water-injection type water expansion forming device with two ends comprises a bottom fixing plate, wherein a lower die is arranged in the center of the upper end surface of the bottom fixing plate, an upper die is arranged at the upper end of the lower die, and the upper die and the lower die are buckled to form an external cavity of a finished pipe fitting; the upper end surface of the bottom fixing plate is respectively provided with a telescopic oil cylinder at two sides of the lower die, the front end of a telescopic rod of each telescopic oil cylinder is connected with a push rod, the middle part of the push rod is provided with a water filling port, the front end of the push rod is connected with a water outlet pipe, a water delivery pipe is arranged inside the push rod and is used for communicating the water filling port with the water outlet pipe, and a sealing element is sleeved outside the front end of the water outlet pipe; the water injection port is connected with a pressurizing water supply device through a pipeline.
Further, the lower die comprises a lower die fixing plate, a first lower die insert is arranged in the middle of the upper end surface of the lower die fixing plate, a lower die molding cavity is arranged on the upper end surface of the first lower die insert, second lower die inserts are arranged on the edges of two sides of the upper end surface of the lower die fixing plate, a lower die orifice fixing cavity is arranged on the upper end surface of each second lower die insert, and the lower die orifice fixing cavity is communicated with the lower die molding cavity; the upper die comprises an upper die fixing plate, a top fixing plate is arranged on the upper end face of the upper die fixing plate, a first upper die is arranged in the middle of the lower end face of the upper die fixing plate, a first upper die insert is arranged on the lower end face of the first upper die insert, an upper die molding cavity corresponding to the lower die molding cavity is formed in the lower end face of the upper die fixing plate, a second upper die insert is arranged on the edges of two sides of the lower end face of the upper die fixing plate, a lower end face of the second upper die insert is provided with an upper die orifice fixing cavity corresponding to the lower die orifice fixing cavity, and the.
Furthermore, the two second lower die inserts are centrosymmetric relative to the central point of the first lower die insert, the positions of the two second upper die inserts correspond to the positions of the second lower die inserts, the two telescopic oil cylinders are centrosymmetric relative to the central point of the first lower die insert, and the front end of each push rod points to a pipe orifice fixing cavity formed by buckling the lower die pipe orifice fixing cavity and the upper die pipe orifice fixing cavity.
Furthermore, the upper end face of the lower die fixing plate is provided with guide posts, and the lower end face of the upper die fixing plate is provided with guide holes corresponding to the guide posts.
Furthermore, the telescopic oil cylinder is a servo oil cylinder.
Furthermore, a displacement sensor is arranged in the telescopic oil cylinder.
Further, the sealing member includes the end cap connecting block, the end cap connecting block divide into shutoff portion, cup joint portion and grafting portion from the front to the back in proper order, the external diameter of shutoff portion, cup joint portion and grafting portion reduces gradually, the suit is provided with the sealing washer in the portion of cup jointing, grafting portion inserts in the preset connecting hole of push rod front end.
Furthermore, the plugging portion is provided with a plurality of water through holes in a penetrating mode in the front-rear direction, an annular groove is formed in the inner side of the front end face of the sealing ring, and an outlet at the rear end of each water through hole is located in the area of the annular groove.
Further, the sealing ring is a polyurethane sealing ring.
The utility model relates to a both ends water injection formula water inflation forming device, simple structure, convenient operation, the inflation technology of complete complicated pipe fitting interlude rapidly, the size is easily controlled, and production efficiency is high.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, 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 perspective view of the present invention;
fig. 2 is a schematic partial cross-sectional view of the present invention;
fig. 3 is a perspective view of a finished pipe fitting obtained in the embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1 and 2, a two-end water injection type water expansion molding device comprises a bottom fixing plate 1, wherein a lower die is arranged in the center of the upper end surface of the bottom fixing plate 1, an upper die is arranged at the upper end of the lower die, and the upper die and the lower die are buckled to form an external cavity of a finished pipe fitting; the upper end surface of the bottom fixing plate 1 is respectively provided with one telescopic oil cylinder 2 at two sides of the lower die, the front end of a telescopic rod of each telescopic oil cylinder 2 is connected with a push rod 3, the middle part of the push rod 3 is provided with a water filling port 4, the front end of the push rod 3 is connected with a water outlet pipe 5, a water delivery pipe 6 is arranged inside the push rod 3, the water delivery pipe 6 is used for communicating the water filling port 4 with the water outlet pipe 5, and the outer side of the front end of the water outlet pipe; the water injection port 4 is connected to a pressurized water supply device (not shown) through a pipeline.
The working principle is as follows:
putting the semi-finished pipe into the inner cavity of the lower die, then covering the upper die, simultaneously starting the two telescopic oil cylinders to enable the push rods to enter the semi-finished pipe from two sides, then starting the pressurizing water supply device to inject water into the semi-finished pipe and pressurize the semi-finished pipe, repeatedly carrying out pressurizing and propelling operations according to the appearance requirement of the finished pipe until the molding work is finished, finally relieving pressure, retracting the push rods, opening the upper die and taking out the finished pipe.
The lower die comprises a lower die fixing plate 7, a first lower die insert 8 is arranged in the middle of the upper end face of the lower die fixing plate 7, a lower die molding cavity is arranged on the upper end face of the first lower die insert 8, second lower die inserts 9 are arranged on the edges of two sides of the upper end face of the lower die fixing plate 7, a lower die orifice fixing cavity is arranged on the upper end face of each second lower die insert 9, and the lower die orifice fixing cavity is communicated with the lower die molding cavity; the upper die comprises an upper die fixing plate 10, a top fixing plate 11 is arranged on the upper end face of the upper die fixing plate 10, a first upper die 12 is arranged in the middle of the lower end face of the upper die fixing plate 10, an upper die cavity corresponding to the lower die molding cavity is arranged on the lower end face of the first upper die 12, two side edges of the lower end face of the upper die fixing plate 10 are provided with a second upper die 13, an upper die orifice fixing cavity corresponding to the lower die orifice fixing cavity is arranged on the lower end face of the second upper die 13, and the upper die orifice fixing cavity is communicated with the upper die molding cavity. The insert structure is easy to process and convenient to maintain or replace according to actual conditions or requirements.
The two second lower die inserts 9 are centrosymmetric relative to the central point of the first lower die insert 8, the two second upper die inserts 13 are positioned corresponding to the positions of the second lower die inserts 9, the two telescopic oil cylinders 2 are centrosymmetric relative to the central point of the first lower die insert 8, and the front end of each push rod 3 points to a pipe orifice fixing cavity formed by buckling a lower die pipe orifice fixing cavity and an upper die pipe orifice fixing cavity. This configuration is suitable for the finished pipe as shown in figure 3.
The upper end surface of the lower die fixing plate 7 is provided with guide posts 14, and the lower end surface of the upper die fixing plate 10 is provided with guide holes corresponding to the guide posts 14. The buckle between the upper die and the lower die is convenient, and the buckle is accurate and fast.
The telescopic oil cylinder 2 is a servo oil cylinder, is stable in telescopic and high in precision, and is easy to control the advancing distance of the push rod.
A displacement sensor 15 is arranged in the telescopic oil cylinder 2, the propelling distance of the push rod is monitored, and the water outlet pipe orifice is accurately controlled to reach the expansion part of the pipe fitting.
The sealing member includes end cap connecting block 16, and end cap connecting block 16 divide into shutoff portion, cup joint portion and grafting portion from the front to the back in proper order, and the external diameter of shutoff portion, cup joint portion and grafting portion reduces gradually, and the suit is provided with sealing washer 17 in the portion of cup jointing, and grafting portion inserts in the preset connecting hole of push rod 3 front end. The double sealing enhances the sealing performance, and prevents the leakage condition in the water expansion process.
The plugging part is provided with a plurality of water through holes 18 in a penetrating manner in the front-back direction, an annular groove is formed in the inner side of the front end face of the sealing ring 17, and the rear end outlets of the water through holes 18 are arranged in the area of the annular groove. Water enters the annular groove through the limber hole, so that the sealing ring expands per se, and the sealing property is enhanced.
The sealing ring 17 is a polyurethane sealing ring and has the characteristics of abrasion resistance, high pressure resistance and the like.
The utility model relates to a both ends water injection formula water inflation forming device, simple structure, convenient operation, the inflation technology of complete complicated pipe fitting interlude rapidly, the size is easily controlled, and production efficiency is high.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a both ends water injection formula water inflation forming device which characterized in that: the pipe fitting fixing device comprises a bottom fixing plate, wherein a lower die is arranged in the center of the upper end surface of the bottom fixing plate, an upper die is arranged at the upper end of the lower die, and the upper die and the lower die are buckled to form an external cavity of a finished pipe fitting;
the upper end surface of the bottom fixing plate is respectively provided with a telescopic oil cylinder at two sides of the lower die, the front end of a telescopic rod of each telescopic oil cylinder is connected with a push rod, the middle part of the push rod is provided with a water filling port, the front end of the push rod is connected with a water outlet pipe, a water delivery pipe is arranged inside the push rod and is used for communicating the water filling port with the water outlet pipe, and a sealing element is sleeved outside the front end of the water outlet pipe;
the water injection port is connected with a pressurizing water supply device through a pipeline.
2. The two-end water injection type water expansion forming device according to claim 1, wherein: the lower die comprises a lower die fixing plate, a first lower die insert is arranged in the middle of the upper end surface of the lower die fixing plate, a lower die molding cavity is arranged on the upper end surface of the first lower die insert, second lower die inserts are arranged on the edges of two sides of the upper end surface of the lower die fixing plate, a lower die orifice fixing cavity is arranged on the upper end surface of each second lower die insert, and the lower die orifice fixing cavity is communicated with the lower die molding cavity;
the upper die comprises an upper die fixing plate, a top fixing plate is arranged on the upper end face of the upper die fixing plate, a first upper die is arranged in the middle of the lower end face of the upper die fixing plate, a first upper die insert is arranged on the lower end face of the first upper die insert, an upper die molding cavity corresponding to the lower die molding cavity is formed in the lower end face of the upper die fixing plate, a second upper die insert is arranged on the edges of two sides of the lower end face of the upper die fixing plate, a lower end face of the second upper die insert is provided with an upper die orifice fixing cavity corresponding to the lower die orifice fixing cavity, and the.
3. The two-end water injection type water expansion forming device according to claim 2, characterized in that: the two second lower die inserts are centrosymmetric relative to the central point of the first lower die insert, the positions of the two second upper die inserts correspond to the positions of the second lower die inserts, the two telescopic oil cylinders are centrosymmetric relative to the central point of the first lower die insert, and the front end of each push rod points to a pipe orifice fixing cavity formed by buckling a lower die pipe orifice fixing cavity and an upper die pipe orifice fixing cavity.
4. The two-end water injection type water expansion forming device according to claim 2, characterized in that: the upper end face of the lower die fixing plate is provided with guide posts, and the lower end face of the upper die fixing plate is provided with guide holes corresponding to the guide posts.
5. The two-end water injection type water expansion forming device according to claim 1, wherein: the telescopic oil cylinder is a servo oil cylinder.
6. The two-end water injection type water expansion forming device according to claim 1, wherein: and a displacement sensor is arranged in the telescopic oil cylinder.
7. The two-end water injection type water expansion forming device according to claim 1, wherein: the sealing member includes the end cap connecting block, the end cap connecting block divide into shutoff portion, cup joint portion and grafting portion from the front to the back in proper order, the external diameter of shutoff portion, cup joint portion and grafting portion reduces gradually, the suit is provided with the sealing washer in the portion of cup jointing, grafting portion inserts in the preset connecting hole of push rod front end.
8. The two-end water injection type water expansion forming device according to claim 7, wherein: the sealing ring is characterized in that a plurality of water through holes are formed in the blocking portion in a penetrating mode in the front-back direction, an annular groove is formed in the inner side of the front end face of the sealing ring, and an outlet at the rear end of each water through hole is located in the area of the annular groove.
9. The two-end water injection type water expansion forming device according to claim 7 or 8, wherein: the sealing ring is a polyurethane sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922417879.0U CN212329394U (en) | 2019-12-28 | 2019-12-28 | Two-end water injection type water expansion forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922417879.0U CN212329394U (en) | 2019-12-28 | 2019-12-28 | Two-end water injection type water expansion forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212329394U true CN212329394U (en) | 2021-01-12 |
Family
ID=74063375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922417879.0U Expired - Fee Related CN212329394U (en) | 2019-12-28 | 2019-12-28 | Two-end water injection type water expansion forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212329394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808836A (en) * | 2021-02-04 | 2021-05-18 | 浙江正康实业股份有限公司 | Water expansion forming device and forming process |
-
2019
- 2019-12-28 CN CN201922417879.0U patent/CN212329394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808836A (en) * | 2021-02-04 | 2021-05-18 | 浙江正康实业股份有限公司 | Water expansion forming device and forming process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210112 Termination date: 20211228 |