Large-scale liquid-filled impact composite forming device and working method thereof
阅读说明:本技术 大型充液冲击复合成形装置及其工作方法 (Large-scale liquid-filled impact composite forming device and working method thereof ) 是由 李经明 欧阳翎 胥志高 曹广 蒋启超 刘先林 于 2020-07-31 设计创作,主要内容包括:本发明公开了一种大型充液冲击复合成形装置及其使用方法,包括下梁、工作台、中梁、下截水室、上梁、充液封板、上截水室、冲击锤头、冲击动力头;充液封板将下截水室的上端口封闭,中梁通过提升油缸上行,将充液封板抵紧于上截水室的底面,下顶油缸将工作台顶升将下截水室的下端口被封闭,在下截水室内充填高压液体,让工件毛坯充液拉伸成形大部特征;充液封板将下截水室的上端口打开,提升油缸与下顶油缸让工作台与中梁同时上行,使上截水室与下截水室组成一个完整水室,在完整水室内充水至规定水位,冲击动力头向下推动冲击锤头,实施高能高速冲击成形,以解决局部特征尺寸难一次成形的问题,降低生产成本,提高局部特征尺寸的位置精度,提高零件整体的性能。(The invention discloses a large-scale liquid-filled impact composite forming device and a using method thereof, wherein the device comprises a lower beam, a workbench, a middle beam, a lower water intercepting chamber, an upper beam, a liquid-filled sealing plate, an upper water intercepting chamber, an impact hammer head and an impact power head; the upper port of the lower water intercepting chamber is sealed by the liquid filling seal plate, the middle beam moves upwards through the lifting oil cylinder, the liquid filling seal plate is tightly abutted against the bottom surface of the upper water intercepting chamber, the lower jacking oil cylinder jacks the workbench to seal the lower port of the lower water intercepting chamber, high-pressure liquid is filled in the lower water intercepting chamber, and the workpiece blank is subjected to liquid filling and stretching forming to obtain most characteristics; the upper port of the lower water intercepting chamber is opened by the liquid filling closing plate, the workbench and the middle beam are enabled to simultaneously move upwards by the lifting oil cylinder and the lower jacking oil cylinder, the upper water intercepting chamber and the lower water intercepting chamber form a complete water chamber, water is filled in the complete water chamber to a specified water level, the impact power head pushes the impact hammer downwards, and high-energy high-speed impact forming is implemented, so that the problem that local characteristic sizes are difficult to form at one time is solved, the production cost is reduced, the position accuracy of the local characteristic sizes is improved, and the integral performance of parts is improved.)
1. A large liquid-filled impact composite forming device is characterized by comprising:
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 center sill (300), the upper end and the lower end of the lower water intercepting chamber (400) are respectively opened, transverse holes (410) are arranged on the inner wall of the lower water intercepting chamber (400) in a surrounding mode, and the transverse holes (410) are used for water inflow through a water inlet channel (350) on the center sill (300) or water drainage through a water outlet channel (360);
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 arranged 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);
the impact hammer head (800) extends into the upper water intercepting chamber (700) and can impact downwards in the upper water intercepting chamber (700);
and the impact power head (900), wherein the impact power head (900) provides thrust for the impact hammer head (800).
2. The large 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 large liquid-filled impact composite forming device according to claim 1, wherein the liquid-filled sealing plate (500) is provided at the bottom thereof with sliding positions (510) at the left and right sides, the top surface of the center sill (300) is provided with mold lifting guide rails (310) engaged with the sliding positions (510), and the mold lifting guide rails (310) extend toward 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 large liquid-filled impact composite forming device according to claim 1, wherein the upper beam (600) and the lower beam (100) are fixedly connected with side columns (1000) at the left and right sides respectively, and longitudinal guide rails (1100) are arranged on the side columns (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. A large liquid-filled impact composite forming device according to claim 1, wherein the bottom surface of the upper water intercepting chamber (700) is provided with radial exhaust grooves (710) which are uniformly arranged, the bottom surface of the upper water intercepting chamber (700) is provided with an annular exhaust groove (720), and the annular exhaust groove (720) penetrates through the radial exhaust grooves (710); the top of the lower water intercepting chamber (400) is uniformly provided with exhaust vertical holes (420) along the longitudinal direction, the exhaust vertical holes (420) are communicated with the transverse holes (410), and the opening position of the top of each exhaust vertical hole (420) is matched with the position of the annular exhaust groove (720).
6. The large-scale liquid-filled impact composite forming device according to claim 1, wherein a locking cylinder barrel (620) is arranged on the upper beam (600), a hammerhead locking cylinder piston rod (640) is arranged in the locking cylinder barrel (620), stepped through holes (730) are arranged on the inner wall of the upper water intercepting chamber (700), a locking pin (740) is inserted in the stepped through holes (730), and the tail end of the locking pin (740) extends into the inner cavity of the hammerhead locking cylinder piston rod (640); the bottom of the locking cylinder barrel (620) is sealed through a hammer head locking cylinder guide sleeve (630), and the hammer head locking cylinder piston rod (640) pushes the locking pin (740) out of the stepped through hole (730) through pressing.
7. The large-scale liquid-filled impact composite forming device according to claim 1, wherein the impact power head (900) comprises an energy accumulator (910), an energy accumulator valve block (920), an impact cylinder barrel (930), a large cartridge valve (990) and a small cartridge valve (9100), the small cartridge valve (9100) is communicated with the oil pressure cavity (921), the energy accumulator (910) is mounted on the energy accumulator valve block (920), an oil pressure cavity (921) is arranged in the energy accumulator valve block (920), the oil pressure cavity (921) and the energy accumulator (910) are controlled by the large cartridge valve (990) to be disconnected or communicated, the impact cylinder barrel (930) is mounted at the bottom of the oil pressure cavity (921), an impact cylinder piston rod (940) is mounted in the impact cylinder barrel (930), and the bottom end of the impact cylinder piston rod (940) is connected with the impact hammer head (800).
8. A large-scale liquid-filled impact composite forming device according to claim 7, wherein the accumulator valve block (920) is connected with the upper beam (600) through a support body (2000), and an oil tank (2100) is arranged on the support body (2000); a pressure relief hole (931) is arranged on the inner wall of the lower section of the impact cylinder barrel (930), an impact cylinder buffering sleeve (950) is sleeved outside the lower end of the impact cylinder barrel (930), the impact cylinder buffer sleeve (950) is respectively provided with an upper oil discharge channel (951), a lower oil discharge channel (952) and a lower oil inlet (954), the lower oil inlet (954) is communicated with the small cartridge valve (9100), the upper oil discharging channel (951) is communicated with the pressure relief hole (931), the upper oil discharge passage (951) is controlled by an upper liquid charging valve (960), the lower oil discharge passage (952) is controlled by a lower liquid charging valve (970), the lower oil discharge channel (952) is provided with a vent hole (953), the upper liquid charging valve (960) and the lower liquid charging valve (970) are respectively communicated with the oil tank (2100) through oil pipes, the lower oil inlet (954) is used for injecting oil into the impact cylinder buffer sleeve (950).
9. The large liquid-filled impact composite forming device according to claim 7, wherein an impact cylinder impact-prevention sleeve (980) is arranged in the oil pressure chamber (921), a limit pin (981) is arranged in the center of the impact cylinder impact-prevention sleeve (980), and after the impact cylinder piston rod (940) returns, the bottom of the limit pin (981) is abutted against the top of the impact cylinder piston rod (940).
10. The use method of the large-scale liquid-filled impact composite forming device is characterized by comprising the following steps of:
(1) the mold pushing oil cylinder (130) pushes the movable workbench (230) out of the device, the workbench (200) is pushed out along with the movable workbench (230), the mold is installed on the workbench (200), a workpiece blank is placed at a proper position of the mold and covered with a mold blank cover plate, and the workbench (200) and the movable workbench (230) are reset by the mold pushing oil cylinder (130); the lower jacking oil cylinder (110) jacks the workbench (200), and a die, a workpiece blank and a blank cover plate are jacked and attached to the bottom surface of the middle beam (300), so that the lower port of the lower water intercepting chamber (400) is closed;
(2) the double-earring-connected traction oil cylinder (320) pushes the liquid-filling sealing plate (500) back to the central position of the middle beam (300), and the liquid-filling sealing plate (500) seals the upper port of the lower water intercepting chamber (400);
(3) filling the closed lower water intercepting chamber (400) with a low-pressure water solution, enabling the lifting oil cylinder (610) and the lower ejection oil cylinder (110) to move upwards, enabling the liquid filling sealing plate (500) to be attached to the bottom surface of the upper water intercepting chamber (700), and adjusting the oil pressure of the lower ejection oil cylinder to form a preset edge pressing force;
(4) filling liquid with pressure required by workpiece forming into the closed lower water intercepting chamber (400), so that most of characteristics of the workpiece blank are subjected to liquid filling stretching forming, and the liquid filling forming process is completed;
(5) the lower top oil cylinder (110) and the lifting oil cylinder (610) move downwards simultaneously, the liquid filling sealing plate (500) is separated from the bottom surface of the upper water intercepting chamber (700), the liquid filling sealing plate (500) is lifted, the two double-earring-connected traction oil cylinders (320) push the liquid filling sealing plate (500) out, and the upper port of the lower water intercepting chamber (400) is opened;
(6) the lifting oil cylinder (610) retracts, the lower jacking cylinder jacks up, an opening at the upper end of the lower water intercepting chamber (400) and an opening at the lower end of the upper water intercepting chamber (700) are tightly attached to form a complete water chamber, and the workbench (200), the die, the workpiece blank which is subjected to liquid filling stretch forming, the blank cover plate, the middle beam (300) and the upper water intercepting chamber (700) form a whole;
(7) filling water into the complete water chamber to enable the water level to reach a preset position;
(8) compressed air is filled into a lower oil discharge channel (952) of the impact cylinder buffer sleeve (950) through the vent hole (953), and all hydraulic oil is blown into the oil tank (2100);
(9) a piston rod (640) of the hammer head locking cylinder descends to eject the locking pin (740) and lock the impact hammer head (800); meanwhile, a large cartridge valve (990) on the energy accumulator valve block (920) is opened, a small cartridge valve (9100) is closed, and high-pressure oil in the energy accumulator (910) is filled into the oil pressure cavity (921);
(10) a piston rod (640) of a hammer head locking cylinder ascends, the impact hammer head (800) is unlocked, and a piston rod (940) of the impact cylinder drives the impact hammer head (800) to impact downwards under the pushing of high-pressure hydraulic oil of an energy accumulator (910), so that high-energy high-speed impact forming is realized;
(11) the large cartridge valve (990) on the energy accumulator valve block (920) is closed, and the energy accumulator (910) is charged; the small cartridge valve (9100) is opened, the lower oil inlet (954) supplies oil, the piston rod (940) of the impact oil cylinder drives the hammer to rise to the highest position, the piston rod (640) of the hammer locking cylinder moves downwards to eject the locking pin (740), and the impact hammer (800) is locked;
(12) the lower jacking oil cylinder (110) descends to reset the workbench (200); the mold pushing oil cylinder (130) pushes the movable workbench (230) together with the workbench (200), and the blank pressing plate and the workpiece blank which is processed are taken down;
(13) and (5) working steps (1) to (12) in a circulating mode.
Technical Field
The invention relates to the technical field of metal pressure processing, in particular to a large-scale liquid-filled impact composite forming device and a working method thereof.
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, for example, an automobile inner plate is a complex curved surface with edges and corners, and in a liquid filling forming process, due to the limitation of liquid filling forming medium pressure, although most characteristics such as bosses, convex ribs and the like are formed by attaching a die, sharp corners and bent parts cannot be formed fully; for complex parts with most characteristics formed by liquid filling, in order to form local characteristics, the tonnage of equipment is inevitably increased only by simply increasing the liquid filling forming pressure, the production cost is increased, if other processes are assisted after forming, the working procedures are increased, secondary assembly errors are generated, the position precision of the local characteristic dimension cannot be ensured by the method, the integral performance of the parts is influenced, and the whole large-scale part is scrapped seriously, so that the resource waste is caused; there is therefore a need for improvement of the above-mentioned technical problem.
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 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 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, an upper water intercepting chamber, an impact hammer head and an impact power head; 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, the upper end and the lower end of the lower water intercepting chamber are respectively provided with an opening, transverse holes are arranged on the inner wall of the lower water intercepting chamber in a surrounding manner, the liquid filling sealing plate is arranged on the top surface of the middle beam, and the transverse holes are used for water inlet through a water inlet channel on the middle beam or water outlet through a water outlet channel; the liquid filling seal plate is used for opening or sealing 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; the impact hammer head extends into the upper water intercepting chamber and impacts downwards in the upper water intercepting chamber; and the impact power head provides thrust for the impact hammer head.
The large liquid-filled impact composite forming device provided by the embodiment of the invention at least has the following beneficial effects:
the liquid filling seal plate moves to the center of the middle beam, the upper port of the lower water intercepting chamber is sealed, the middle beam moves upwards through the lifting oil cylinder, the liquid filling seal plate is tightly pressed against the bottom surface of the upper water intercepting chamber, the piston rod of the lower jacking oil cylinder jacks a workbench provided with a die and a workpiece blank to be tightly pressed against the bottom surface of the lower water intercepting chamber, the lower port of the lower water intercepting chamber is sealed, liquid with required pressure is filled in the lower water intercepting chamber, the workpiece blank is made to be liquid filled and stretched to form most characteristics, and liquid filling forming is completed; the upper port of the lower water intercepting chamber is opened by moving the liquid filling sealing plate, the workbench and the middle beam simultaneously move upwards by the lifting oil cylinder and the lower jacking oil cylinder, the upper port of the lower water intercepting chamber is abutted against the lower port of the upper water intercepting chamber, the upper water intercepting chamber and the lower water intercepting chamber form a complete water chamber, water is filled in the complete water chamber to a specified water level, the impact power head pushes the impact hammer head downwards to enable the impact hammer head to impact liquid in the complete water chamber, high-energy high-speed impact forming can be carried out on a workpiece blank, and the workpiece blank is formed into local small characteristics; the device can successively implement a liquid-filling forming process and a high-energy high-speed forming process, so as to solve the problem that the liquid-filling forming technology is difficult to form local characteristic dimensions such as small concave angles, small indentations and the like at one time, avoid increasing the tonnage of equipment, reduce the production cost, improve the position precision of the local characteristic dimensions, improve the integral performance of parts, and provide a liquid-filling forming area up to 1000000mm2Above and in liquidThe forming force can reach 5000T, and the energy of impact forming reaches 750000J.
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 present invention, the bottom surface of the upper water intercepting chamber is provided with radial exhaust grooves which are uniformly arranged, the bottom surface of the upper water intercepting chamber is provided with an annular exhaust groove, and the annular exhaust groove penetrates through the radial exhaust grooves; and the top of the lower water intercepting chamber is uniformly provided with vertical exhaust holes along the longitudinal direction, the vertical exhaust holes are communicated with the transverse holes, and the opening position of the top of each vertical exhaust hole is matched with the position of the annular exhaust groove.
According to some embodiments of the invention, a locking cylinder barrel is arranged on the upper beam, a hammerhead locking cylinder piston rod is arranged in the locking cylinder barrel, stepped through holes are arranged on the inner wall of the upper water intercepting chamber, locking pins are inserted in the stepped through holes, and the tail end of each locking pin extends into the inner cavity of the hammerhead locking cylinder piston rod; the bottom of the cylinder barrel of the locking cylinder is sealed through a hammer head locking cylinder guide sleeve, and a piston rod of the hammer head locking cylinder pushes the locking pin out of the stepped through hole through pressing.
According to some embodiments of the invention, the impact power head comprises an energy accumulator, an energy accumulator valve block, an impact cylinder, a large cartridge valve and a small cartridge valve, the small cartridge valve is communicated with the oil pressure cavity, the energy accumulator is mounted on the energy accumulator valve block, the oil pressure cavity is arranged in the energy accumulator valve block, the oil pressure cavity and the energy accumulator are controlled by the large cartridge valve to be disconnected or communicated, the impact cylinder is mounted at the bottom of the oil pressure cavity, an impact cylinder piston rod is mounted in the impact cylinder, and the bottom end of the impact cylinder piston rod is connected with the impact hammer head.
According to some embodiments of the invention, the accumulator valve block is connected to the upper beam through a support body, and an oil tank is mounted on the support body; the oil injection device is characterized in that a pressure relief hole is formed in the inner wall of the lower section of the impact cylinder barrel, an impact cylinder buffer sleeve is sleeved outside the lower end of the impact cylinder barrel, an upper oil discharge channel, a lower oil discharge channel and a lower oil inlet are respectively arranged on the impact cylinder buffer sleeve, the lower oil inlet is communicated with the small cartridge valve, the upper oil discharge channel is communicated with the pressure relief hole, the upper oil discharge channel is controlled by an upper liquid filling valve, the lower oil discharge channel is controlled by a lower liquid filling valve, an air vent is formed in the lower oil discharge channel, the upper liquid filling valve and the lower liquid filling valve are respectively communicated with the oil tank through oil pipes, and the lower oil inlet is used for injecting oil into the impact cylinder.
According to some embodiments of the invention, an impact cylinder impact-prevention sleeve is arranged in the oil pressure cavity, a limit pin is arranged in the center of the impact cylinder impact-prevention sleeve, and after the piston rod of the impact cylinder returns, the bottom of the limit pin abuts against the top of the piston rod of the impact cylinder.
The invention also provides a use method of the large-scale liquid-filled impact composite forming device, which comprises the following steps:
(1) the mold pushing oil cylinder pushes the movable workbench out of the device, the workbench is pushed out along with the movable workbench, the mold is arranged on the workbench, a workpiece blank is placed at a proper position of the mold and covered with a mold blank cover plate, and the mold pushing oil cylinder resets the workbench and the movable workbench; the lower jacking oil cylinder jacks a workbench, and a die, a workpiece blank and a blank cover plate are jacked and attached to the bottom surface of the middle beam, so that the lower port of the lower water intercepting chamber is closed;
(2) the double-lug-ring-connected traction oil cylinder pushes the liquid-filling sealing plate back to the central position of the middle beam, and the liquid-filling sealing plate seals the upper port of the lower water intercepting chamber;
(3) filling the closed lower water intercepting chamber with low pressure water solution, lifting the oil cylinder and the lower ejection oil cylinder to move upwards to make the liquid filling sealing plate and the bottom surface of the upper water intercepting chamber cling to each other, and adjusting the oil pressure of the lower ejection oil cylinder to form preset blank pressing force;
(4) filling liquid with pressure required by workpiece forming into the closed lower water-intercepting chamber, so that most of characteristics of the workpiece blank are subjected to liquid-filling stretching forming, and the liquid-filling forming process is completed;
(5) the lower top oil cylinder and the lifting oil cylinder simultaneously move downwards, the liquid filling sealing plate is separated from the bottom surface of the upper water intercepting chamber and lifted, and the two double-earring-connected traction oil cylinders push out the liquid filling sealing plate, so that the upper port of the lower water intercepting chamber is opened;
(6) the lifting oil cylinder retracts, the lower jacking cylinder jacks up, and an opening at the upper end of the lower water intercepting chamber and an opening at the lower end of the upper water intercepting chamber are tightly attached to form a complete water chamber, so that the workbench, the die, the workpiece blank which is subjected to liquid filling stretch forming, the blank cover plate, the middle beam and the upper water intercepting chamber form a whole;
(7) filling water into the complete water chamber to enable the water level to reach a preset position;
(8) compressed air is filled into the lower oil discharge channel of the impact cylinder buffer sleeve through the vent hole, and all hydraulic oil is blown into the oil tank;
(9) a piston rod of the hammer head locking cylinder descends to eject the locking pin out to lock the impact hammer head; meanwhile, a large cartridge valve on the energy accumulator valve block is opened, a small cartridge valve is closed, and high-pressure oil in the energy accumulator is filled into the oil pressure cavity;
(10) the hammer head locking cylinder piston rod moves upwards, the impact hammer head is unlocked, and the impact cylinder piston rod drives the impact hammer head to impact downwards under the pushing of high-pressure hydraulic oil of the energy accumulator, so that high-energy high-speed impact forming is realized;
(11) closing a large cartridge valve on the energy accumulator valve block, and filling liquid into the energy accumulator; a small cartridge valve on the energy accumulator valve block is opened, oil enters an oil inlet on the buffer sleeve, a piston rod of the impact oil cylinder drives the hammer to rise to the highest position, a piston rod of the hammer locking cylinder moves downwards to eject a locking pin, and the impact hammer is locked;
(12) the lower jacking oil cylinder moves downwards to reset the workbench; the mold pushing oil cylinder pushes the movable workbench and the workbench out, and the blank pressing plate and the workpiece blank which is processed are taken down;
(13) and (5) working steps (1) to (12) in a circulating mode.
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 perspective view of an embodiment of the present invention during a liquid-filled forming stage;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention during a hydroforming stage;
FIG. 3 is a schematic perspective view of an embodiment of the present invention during an impact forming stage;
FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention during an impact forming stage;
FIG. 5 is a schematic view of a lower beam and a workbench in combination in an embodiment of the present invention;
FIG. 6 is a cross-sectional view of the lower beam and the working platform in combination according to an embodiment of the present invention;
FIG. 7 is a first view of the center sill and fluid filled seal plate in an assembled configuration in accordance with an embodiment of the present invention;
FIG. 8 is a second view of the center sill and fluid filled seal plate in an assembled configuration in accordance with an embodiment of the present invention;
FIG. 9 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. 10 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. 11 is a schematic view of a power head and an upper beam in an assembled state according to an embodiment of the present invention;
FIG. 12 is a first cross-sectional view of the power head and the upper beam in an assembled state according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view of the power head and the upper beam in an assembled state according to an embodiment of the present invention;
FIG. 14 is a third cross-sectional view of the power head and the upper beam in an assembled state according to an embodiment of the present invention;
FIG. 15 is a cross-sectional view of the power head and the upper beam in an assembled state according to an embodiment of the present invention;
FIG. 16 is a first schematic sectional view of the upper beam, the middle beam, the upper header chamber and the lower header chamber of an embodiment of the present invention during an impact forming stage;
FIG. 17 is a second schematic sectional view of the upper beam, the middle beam, the upper header chamber and the lower header chamber of an embodiment of the present invention during an impact forming stage;
FIG. 18 is a schematic view of an upper cut-off chamber in an embodiment of the present invention;
FIG. 19 is a schematic cross-sectional view of a lower intercepting chamber in an embodiment of the present invention;
FIG. 20 is a schematic view showing a combination state between the upper water intercepting chamber and the lower water intercepting chamber in the embodiment of the present invention;
FIG. 21 is a schematic view of a small cartridge valve in an embodiment of the present invention.
The
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.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, a large liquid-filled impact composite forming apparatus is provided with a
In operation, the liquid filling
Referring to fig. 5 and 6, the work table 200 includes a table 210, a
Referring to fig. 7 to 10, the liquid filling
Because the liquid filling
An
Referring to fig. 1 and 3,
Referring to fig. 17 to 19, during impact forming, the
Referring to fig. 15 and 16, when the hydraulic oil in the
A locking cylinder barrel 620 is arranged on the
When the impact forming processing is carried out, oil is discharged from the upper cavity of the locking cylinder barrel 620, oil is fed into the lower cavity of the locking cylinder barrel 620, the piston rod 640 of the hammer locking cylinder is enabled to move upwards, the locking pin 740 retracts into the stepped through hole 730 after the blocking of the locking pin 740 is removed, and the
Referring to fig. 11 to 15 and 21, the
The energy
The
When the upper end face of the piston rod of the impact oil cylinder is punched downwards to enter the upper edge of the
Because the resistance of the hydraulic oil is larger than that of the air, in order to reduce the resistance on the lower cavity of the
After the impact
Referring to fig. 1 to 4, in addition, the present embodiment also relates to a method for using a large liquid-filled impact composite forming apparatus, comprising the following steps:
(1) the mold-pushing
(2) the double-earring-coupled
(3) filling the closed lower intercepting chamber 400 with a low-pressure aqueous solution, enabling the lifting
(4) filling the closed lower intercepting chamber 400 with liquid at the pressure required by workpiece forming, so that most of the characteristics of the workpiece blank are subjected to liquid filling stretching forming, and the liquid filling forming process is completed;
(5) the lower
(6) the lifting
(7) filling water into the complete water chamber to enable the water level to reach a preset position;
(8) the vent hole 953 fills compressed air into the lower
(9) the hammer head locking cylinder piston rod 640 moves downwards to eject the locking pin 740, and the
(10) the hammer head locking cylinder piston rod 640 moves upwards, the
(11) accumulator valve block 920) large cartridge valve 990 closes and the
(12) the lower jacking
(13) and (5) working steps (1) to (12) in a circulating mode.
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.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:大型充液冲击复合成形装置的压边调节力结构