CN212350038U - Blank pressing adjusting force structure of large liquid-filled impact composite forming device - Google Patents
Blank pressing adjusting force structure of large liquid-filled impact composite forming device Download PDFInfo
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- CN212350038U CN212350038U CN202021570083.5U CN202021570083U CN212350038U CN 212350038 U CN212350038 U CN 212350038U CN 202021570083 U CN202021570083 U CN 202021570083U CN 212350038 U CN212350038 U CN 212350038U
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Abstract
The invention discloses a blank pressing adjusting force structure of a large-scale liquid-filled impact composite forming device, which comprises a lower beam, a workbench, a middle beam, a lower water intercepting chamber, a liquid-filled sealing plate and an upper beam, wherein the lower beam is provided with a lower water intercepting chamber and a lower water intercepting chamber; four lifting oil cylinders are arranged on the upper beam, and piston rods of the lifting oil cylinders are fixedly connected with the top surface of the middle beam through flanges. When liquid-filling forming is required to be implemented, the lifting oil cylinder lifts the middle beam, so that the top surface of the middle beam is tightly attached to the lower plane of the liquid-filling sealing plate, and the top surface of the liquid-filling sealing plate is tightly attached to the bottom surface of the upper water intercepting chamber; the sealing between the top surface of the middle beam and the bottom surface of the liquid filling sealing plate is ensured not to lose efficacy, and the liquid filling forming process can be realized.
Description
Technical Field
The invention relates to the technical field of metal pressure processing, in particular to a blank holder adjusting force structure of a large liquid-filled impact composite forming device.
Background
In the fields of aerospace, automobiles and the like, the requirements on structural lightweight, functionality and integrity are higher and higher, so that functional parts with complex structures are widely applied, and a large-scale composite forming device is often used and can realize two processing technologies of liquid-filling forming and high-energy high-speed impact forming; the liquid-filled sealing chamber of the device consists of a mold, a middle beam, a liquid-filled sealing plate and a lower water intercepting chamber, when the sticking degree of the upper plane of the mold and the lower plane of the middle beam is minimum, namely the blank holder force is zero, the sealing between the upper plane of the middle beam and the lower plane of the liquid-filled sealing plate is invalid, and the liquid-filled forming process cannot be realized, so the technical problem needs to be improved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a blank holder adjusting force structure of a large-scale liquid-filled impact composite forming device, which can carry out large-scale composite forming of a liquid-filled forming process and a high-energy high-speed forming process in sequence.
The edge pressing adjusting force structure of the large liquid-filled impact composite forming device comprises a lower beam, a workbench, a middle beam, a lower water intercepting chamber, a liquid-filled sealing plate, an upper beam and an upper water intercepting chamber, wherein a lower jacking oil cylinder is arranged in the lower beam; the workbench is positioned above the lower beam and is jacked up and lowered down by a piston rod of the lower jacking oil cylinder; the middle beam is positioned above the workbench; the lower water intercepting chamber is arranged in the middle beam, and the upper end and the lower end of the lower water intercepting chamber are respectively provided with an opening; the liquid filling seal plate is arranged on the top surface of the middle beam and used for opening or closing an upper port of the lower water intercepting chamber; a lifting oil cylinder is arranged at the top of the upper beam, and a piston rod of the lifting oil cylinder penetrates through the upper beam and is fixedly connected with the middle beam; the upper water intercepting chamber is arranged in the upper beam, the upper end and the lower end of the upper water intercepting chamber are respectively provided with an opening, and the lower port of the upper water intercepting chamber corresponds to the upper port of the lower water intercepting chamber in position.
According to some embodiments of the invention, the workbench comprises a bedplate and a supporting base, the supporting base is sleeved with a movable workbench, the movable workbench supports the bedplate, guide plates are fixed at the bottoms of the left side and the right side of the movable workbench, a slide rail matched with the guide plates is arranged at the top of the lower beam, and the slide rail extends to the front of the lower beam; and a mold pushing oil cylinder is fixed on the rear side of the lower beam through a bracket, and a piston rod of the mold pushing oil cylinder is connected with the movable workbench.
According to some embodiments of the present invention, the liquid-filled sealing plate has sliding positions at the bottom thereof on the left and right sides, and the top surface of the center sill is provided with a mold lifting guide rail engaged with the sliding positions, the mold lifting guide rail extending rearward of the center sill; and the left side and the right side of the liquid filling seal plate are respectively provided with a double-lug-ring connection type traction oil cylinder, and the tail end of the double-lug-ring connection type traction oil cylinder is arranged on the top surface of the middle beam.
According to some embodiments of the present invention, the upper beam and the lower beam are fixedly connected with side columns at left and right sides thereof, respectively, and the side columns are provided with longitudinal guide rails; and the middle beam is provided with a guide rail adjusting seat, and the guide rail adjusting seat is provided with a sliding block matched with the longitudinal guide rail.
According to some embodiments of the invention, the lower intercepting chamber inner wall is circumferentially provided with cross holes, and the cross holes feed water through the water inlet channel on the center sill or discharge water through the water outlet channel.
According to the embodiment of the invention, the edge pressing adjusting force structure of the large-scale liquid-filled impact composite forming device at least has the following beneficial effects:
four lifting oil cylinders are arranged on the upper beam, and piston rods of the lifting oil cylinders are fixedly connected with the top surface of the middle beam through flanges. When liquid-filling forming is required to be implemented, the lifting oil cylinder lifts the middle beam, so that the top surface of the middle beam is tightly attached to the lower plane of the liquid-filling sealing plate, and the top surface of the liquid-filling sealing plate is tightly attached to the bottom surface of the upper water intercepting chamber; the sealing between the top surface of the middle beam and the bottom surface of the liquid filling sealing plate is ensured not to lose efficacy, and the liquid filling forming process can be realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention at a hydroforming stage;
FIG. 2 is a schematic view of a lower beam and a workbench in combination in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the lower beam and the working platform in combination according to an embodiment of the present invention;
FIG. 4 is a first view of the center sill and fluid filled seal plate in an assembled state in accordance with an embodiment of the present invention;
FIG. 5 is a second schematic view of the center sill and the fluid filled seal plate in an assembled state according to an embodiment of the present invention;
FIG. 6 is a first cross-sectional view of the center sill and fluid filled seal plate in an assembled configuration in accordance with an embodiment of the present invention;
FIG. 7 is a cross-sectional view of the center sill and liquid filled closure plate in an assembled state in accordance with an embodiment of the present invention;
fig. 8 is a schematic diagram of the principle in an embodiment of the present invention.
The lower beam 100, the lower ejection oil cylinder 110, the slide rail 120 and the mold pushing oil cylinder 130; a table 200, a platen 210, a support base 220, a movable table 230, and a guide plate 231; the mould lifting device comprises a centre sill 300, a mould lifting guide rail 310, a double lug ring connection type traction oil cylinder 320, a guide rail adjusting seat 330, a sliding block 340, a water inlet channel 350, a water inlet one-way valve 351, a water outlet channel 360 and a water drainage valve 361; a lower water intercepting chamber 400, a transverse hole 410, an exhaust vertical hole 420 and an annular groove 430; an upper beam 600 and a lift cylinder 610; and an upper intercepting chamber 700.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in FIG. 8, P is the forming force, B is the blank holder force, FCThe mold clamping force is used.
Mold clamping force F according to the hydroforming processCP + B, the press force B is the minimum at the beginning of hydroforming, and 0 is the minimum at the time of FCP; in the process of liquid filling forming, the edge pressing force B which is infinitely adjustable is larger and larger, the forming force P is larger and larger, and FCP + B becomes larger and larger; at the final stage of the liquid filling forming process, the blank pressing force B and the forming force P reach the maximum value, and the mold clamping force F is realized at the momentCMax P + B.
Referring to fig. 1, a blank holder adjusting force structure of a large liquid-filled impact composite forming device is provided with a lower beam 100, a middle beam 300 and an upper beam 600 from bottom to bottom in sequence; a lower jacking oil cylinder 110 is arranged in the lower beam 100, a working table 200 is jacked when a piston rod of the lower jacking oil cylinder 110 moves upwards, a die is arranged on the working table 200, a workpiece blank is placed at a proper position of the die and covered with a die blank cover plate; the middle beam 300 is internally provided with a lower water intercepting chamber 400, the upper end and the lower end of the lower water intercepting chamber 400 are respectively opened, the top surface of the middle beam 300 is provided with a liquid filling sealing plate 500, the upper end opening of the lower water intercepting chamber 400 is opened or closed by moving the liquid filling sealing plate 500, the edge of the middle beam 300 is connected with a piston rod of a lifting oil cylinder 610, and the lifting oil cylinder 610 is fixed at the top of the upper beam 600; the upper beam 600 is provided with an upper water intercepting chamber 700 therein, the upper and lower ends of the upper water intercepting chamber 700 are opened, and the lower port of the upper water intercepting chamber 700 corresponds to the upper port of the lower water intercepting chamber 400.
In operation, four lifting oil cylinders 610 are mounted on the upper beam 600, piston rods of the lifting oil cylinders 610 are fixedly connected with the top surface of the middle beam 300 through flanges, when liquid filling forming needs to be carried out, the lifting oil cylinders 610 lift the middle beam 300, so that the top surface of the middle beam 300 is tightly attached to the lower plane of the liquid filling seal plate 500, and the top surface of the liquid filling seal plate 500 is tightly attached to the bottom surface of the upper intercepting chamber 700; the sealing between the top surface of the middle beam 300 and the bottom surface of the liquid filling sealing plate 500 is ensured not to fail, and the liquid filling forming process can be realized.
Referring to fig. 2 and 3, the work table 200 includes a table 210, a support base 220, the support base 220 being lifted and lowered by a piston rod of the lower top cylinder 110, and a mold being placed on the table 210; the movable table 230 is externally installed on the support base 220, and when the support base 220 descends along with the piston rod of the lower top cylinder 110, the platen 210 is placed on the movable table 230 and supported by the movable table 230.
Referring to fig. 4 to 7, the bottom of the liquid filling closing plate 500 is respectively provided with sliding positions 510 at the left and right sides, the top surface of the center sill 300 is provided with a mold lifting guide 310 matched with the sliding positions 510, and the mold lifting guide 310 extends towards the rear of the center sill 300; during the liquid filling forming process, the liquid filling sealing plate 500 is pulled back to the top surface of the middle beam 300 along the die lifting guide rail 310 through the double-lug ring connecting type traction oil cylinders 320 arranged on the left side and the right side of the liquid filling sealing plate 500, and the upper port of the lower intercepting chamber 400 is sealed; during the impact forming process, the liquid-filled sealing plate 500 can be pushed away from the top surface of the center sill 300 by the pulling cylinder 320 with the double earrings coupling, so that the upper port of the lower intercepting chamber 400 is opened.
Because the liquid filling seal plate 500 is tightly attached to the top surface of the center sill 300 during the liquid filling forming process in order to ensure the sealing of the lower intercepting chamber 400, the end of the piston rod of the two-earring coupling type traction cylinder 320 is rotatably mounted on the left and right sides of the liquid filling seal plate 500 after the liquid filling forming process is completed, the tail end of the two-earring coupling type traction cylinder 320 is rotatably mounted on the top surface of the center sill 300, the lower top cylinder 110 and the lifting cylinder 610 simultaneously move downward before the liquid filling seal plate 500 is pushed out, the liquid filling seal plate 500 is separated from the lower end surface of the upper intercepting chamber 700, the liquid filling seal plate 500 is lifted, and the two-earring coupling type traction cylinders 320 push the liquid filling seal plate 500 out.
An annular groove 430 is formed outside the lower water intercepting chamber 400, the rear end of the transverse hole 410 is opened on the annular groove 430, a water inlet channel 350 and a water outlet channel 360 are respectively arranged in the middle beam 300, the water inlet channel 350 and the water outlet channel 360 are communicated with the annular groove 430, a drain valve 361 for controlling the water outlet channel 360 is arranged on the middle beam 300, and a water inlet one-way valve 351 for controlling the water inlet channel 350 is arranged on the middle beam 300.
The left side and the right side of the upper beam 600 and the lower beam 100 are respectively fixedly connected with a side column 1000, and a longitudinal guide rail 1100 is arranged on the side column 1000; the middle beam 300 is provided with a guide rail adjusting seat 330, and the guide rail adjusting seat 330 is provided with a sliding block 340 matched with the longitudinal guide rail 1100.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. The utility model provides a large-scale liquid-filled strikes composite forming device's blank pressing regulating power structure which characterized in that includes:
the lower beam (100) is internally provided with a lower jacking oil cylinder (110);
the workbench (200) is positioned above the lower beam (100), and the workbench (200) is lifted and lowered by a piston rod of the lower top oil cylinder (110);
a center sill (300), the center sill (300) being located above the table (200);
the lower water intercepting chamber (400), the lower water intercepting chamber (400) is arranged in the middle beam (300), and the upper end and the lower end of the lower water intercepting chamber (400) are respectively opened;
the liquid filling sealing plate (500) is arranged on the top surface of the center sill (300), and the liquid filling sealing plate (500) is used for opening or closing the upper end opening of the lower water intercepting chamber (400);
the lifting device comprises an upper beam (600), wherein a lifting oil cylinder (610) is arranged at the top of the upper beam (600), and a piston rod of the lifting oil cylinder (610) penetrates through the upper beam (600) and is fixedly connected with a middle beam (300);
the upper water intercepting chamber (700) is mounted in the upper beam (600), the upper end and the lower end of the upper water intercepting chamber (700) are respectively opened, and the lower port of the upper water intercepting chamber (700) corresponds to the upper port of the lower water intercepting chamber (400).
2. The blank pressing force adjusting structure of a large-scale liquid-filled impact composite forming device according to claim 1, wherein the workbench (200) comprises a bedplate (210) and a supporting base (220), a movable workbench (230) is sleeved outside the supporting base (220), the movable workbench (230) supports the bedplate (210), guide plates (231) are fixed at the bottoms of the left side and the right side of the movable workbench (230), a slide rail (120) matched with the guide plates (231) is arranged at the top of the lower beam (100), and the slide rail (120) extends to the front of the lower beam (100); a mold pushing oil cylinder (130) is fixed on the rear side of the lower beam (100) through a bracket, and a piston rod of the mold pushing oil cylinder (130) is connected with the movable workbench (230).
3. The blank pressing force adjusting structure of a large-scale liquid-filled impact composite forming device according to claim 1, wherein the bottom of the liquid-filled sealing plate (500) is provided with sliding positions (510) at the left and right sides, the top surface of the center sill (300) is provided with a mold lifting guide rail (310) matched with the sliding positions (510), and the mold lifting guide rail (310) extends towards the rear of the center sill (300); the left side and the right side of the liquid filling sealing plate (500) are respectively provided with a double-lug-ring connection type traction oil cylinder (320), and the tail end of the double-lug-ring connection type traction oil cylinder (320) is arranged on the top surface of the middle beam (300).
4. The blank pressing force adjusting structure of a large-scale liquid-filled impact composite forming device according to claim 1, wherein the left side and the right side of the upper beam (600) and the lower beam (100) are respectively fixedly connected with a side column (1000), and a longitudinal guide rail (1100) is arranged on each side column (1000); the middle beam (300) is provided with a guide rail adjusting seat (330), and the guide rail adjusting seat (330) is provided with a sliding block (340) matched with the longitudinal guide rail (1100).
5. The blank pressing force adjusting structure for the large-scale liquid-filled impact composite forming device according to claim 1, wherein cross holes (410) are circumferentially arranged on the inner wall of the lower water intercepting chamber (400), and the cross holes (410) are used for water inlet through a water inlet channel (350) on the center sill (300) or water outlet through a water outlet channel (360).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570083.5U CN212350038U (en) | 2020-07-31 | 2020-07-31 | Blank pressing adjusting force structure of large liquid-filled impact composite forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570083.5U CN212350038U (en) | 2020-07-31 | 2020-07-31 | Blank pressing adjusting force structure of large liquid-filled impact composite forming device |
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| Publication Number | Publication Date |
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| CN212350038U true CN212350038U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021570083.5U Active CN212350038U (en) | 2020-07-31 | 2020-07-31 | Blank pressing adjusting force structure of large liquid-filled impact composite forming device |
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| Country | Link |
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| CN (1) | CN212350038U (en) |
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