A multi-functional hydraulic forming machine

Abstract

The application discloses a multifunctional hydraulic forming machine, and belongs to the field of hydraulic forming. The multifunctional hydraulic forming machine comprises a first forming die, a second forming die and a driving part. The driving part is used for realizing mutual butt joint of the first forming die and the second forming die to form a forming chamber matched with the shape of a processed part. A vacuum suction part is arranged on the driving part to form a suction area on the first forming die and the second forming die, so that the driving part, the first forming die and the second forming die are detachably connected through vacuum suction. A cleaning part is arranged to clean the suction area and coat a sticky layer on the suction area. The multifunctional hydraulic forming machine can quickly replace the forming die and process products with various shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic forming, in particular, to a multifunctional hydraulic forming machine. BACKGROUND

[0002] Hydraulic forming machine is also called hydroforming or hydraulic forming. Hydraulic forming refers to the method of using the pressure of liquid to replace the rigid punch or die to perform stamping processing on sheet metal. It can perform many stamping processes, such as bending, deep drawing, bulging of flat blank, bulging of space blank shape, etc. It can form various complex parts, such as corrugated pipes. And it has the advantages of good surface quality of the formed parts, reduction of processes, simplification of molds and no need for special stamping equipment, etc.

[0003] Since the shape of the formed part is closely related to the shape of the mold inside, but only one mold can be installed on the hydraulic forming machine, so one hydraulic forming machine can only process one shape of product. If another product needs to be processed, the mold needs to be disassembled and replaced. In the prior art, the mold is directly connected through a relatively complex mechanical structure, which is relatively troublesome to disassemble when disassembling the mold, thereby causing a lot of time waste when replacing the mold. If a vacuum chuck is used for convenient negative pressure connection, the vacuum chuck will be difficult to adsorb the mold due to the uneven surface of the mold. Therefore, the existing hydraulic forming machine has too few functions and can only process one shape of product, and it is difficult to achieve quick disassembly of the mold for processing multiple shapes of products. SUMMARY

[0004] The summary part of the present application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide a multifunctional hydraulic forming machine, comprising: a first forming die; a second forming die; a driving member, which is used to realize the mutual butt joint of the first forming die and the second forming die to form a forming chamber matched with the shape of a part to be processed; a vacuum suction member, which is used to form a suction area on the first die and the second die by the driving member, so that the driving member and the first die and the second die form a vacuum adsorption detachable connection; a cleaning member, which is used to clean the suction area and coat a sticky layer on the suction area, so that the vacuum suction member and the first die and the second die form a vacuum adsorption.

[0006] Further, the cleaning member comprises: a first connecting rod and a second connecting rod, and a first roller mounted on the first connecting rod and a second roller mounted on the second connecting rod; the first connecting rod is hinged to the vacuum suction member, and the second connecting rod is hinged to the vacuum suction member; when the vacuum suction member is close to the first mold or the second mold, the first roller and the second roller move from the middle part of the adsorption area to the edge part, so as to clean the adsorption area by the first roller and the second roller.

[0007] Further, a sliding groove is formed in the first connecting rod; a sliding block is slidingly mounted in the sliding groove; the first roller is rotationally connected with the first sliding block; a baffle is mounted in the sliding groove; a guide rod is mounted on the sliding block and penetrates through the baffle, so that the guide rod is slidingly connected with the baffle; an elastic member is mounted between the baffle and the sliding block, and the elastic member is used to make the sliding block receive an elastic external force away from the baffle.

[0008] Further, a hinged rod fixed relative to the vacuum suction member is arranged on the vacuum suction member; the first connecting rod is rotationally connected with the hinged rod, and the second connecting rod is rotationally connected with the hinged rod; a first torsional spring is arranged at the first connecting rod, and a second torsional spring is arranged at the second connecting rod; the first torsional spring and the second torsional spring cooperate to make the first connecting rod and the second connecting rod receive a rotating external force of mutual approaching rotation.

[0009] Further, a liquid tank is arranged at the vacuum suction member; a liquid used to form a viscous layer is arranged in the liquid tank; a flexible liquid outlet pipe is arranged at the liquid tank; one end of the flexible liquid outlet pipe is fixedly communicated with the liquid tank, and the other end is connected with the first roller or the second roller, so that the other end of the flexible liquid outlet pipe connected with the first roller or the second roller moves together with the first roller or the second roller.

[0010] Further, a connecting plate is fixedly mounted on the sliding block, and a transmission rod is arranged at the connecting plate; a rigid liquid outlet pipe is fixedly mounted at the transmission rod, and the rigid liquid outlet pipe is slidingly connected with the flexible liquid outlet pipe.

[0011] Further, a length of the first roller or the second roller in an axial direction covers a width of the adsorption area in an axial direction of the first roller or the second roller; a radial liquid outlet pipe is arranged at the rigid liquid outlet pipe; the radial liquid outlet pipe is used to output liquid in a radial direction; the radial liquid outlet pipe is fixedly communicated with the rigid liquid outlet pipe; a length direction of the radial liquid outlet pipe matches the axial direction of the first roller or the second roller.

[0012] Further, two radial liquid outlet pipes are arranged; one radial liquid outlet pipe is opposite to the adsorption area, so as to directly spray liquid on the adsorption area; the other radial liquid outlet pipe is opposite to the first roller or the second roller, so as to spray liquid on the first roller or the second roller; the two radial liquid outlet pipes are communicated through a communication pipe.

[0013] Further, the rigid liquid outlet pipe is provided with a control valve; the control valve is used to realize the state of radial liquid outlet and the state of closing of the two radial liquid outlet pipes; the first roller or the second roller abutting against the adsorption area makes the slider move upward relative to the first connecting rod, the slider drives the rigid liquid outlet pipe to move upward through the connecting plate, and the upward movement of the rigid liquid outlet pipe in the flexible liquid outlet pipe makes the control valve open.

[0014] Further, the vacuum suction piece is formed with a negative pressure area; a projection of the negative pressure area on the side of the first mold where the adsorption area is located is located inside the adsorption area; the vacuum suction piece is further formed with a plurality of sealing grooves; the sealing grooves are located at the edge of the negative pressure area.

[0015] The application has the beneficial effect of providing a multifunctional hydraulic forming machine capable of quickly replacing molds to process products of various shapes. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the application, so that other features, objects and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions are used to explain the application, and do not constitute an improper limitation on the application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0018] In the drawings:

[0019] Figure 1 is a whole schematic view according to the embodiment of the application;

[0020] Figure 2 is a structural schematic view of a part of the embodiment, mainly showing the structure of the cleaning piece;

[0021] Figure 3 is Figure 2 is an enlarged view of the first roller part of

[0022] Figure 4 is a structural schematic view of a part of the embodiment, mainly showing the structure of the flexible liquid outlet pipe and part of the surrounding parts;

[0023] Figure 5 is a structural schematic view of a part of the embodiment, mainly showing the structure of the radial liquid outlet pipe and part of the surrounding parts;

[0024] Figure 6 is a structural schematic view of a part of the embodiment, mainly showing the structure of the vacuum suction piece;

[0025] Figure 7is a structural schematic diagram that is part of an embodiment, mainly showing the structure of a control valve;

[0026] Figure 8 is a structural schematic diagram that is part of an embodiment, mainly showing Figure 7 Structure observed from another perspective;

[0027] Figure 9 is a structural schematic diagram that is part of an embodiment, mainly showing the exploded structure of a control valve;

[0028] Figure 10 is a structural schematic diagram that is part of an embodiment, mainly showing Figure 1 Structure of a cross section.

[0029] 1, first forming die; 2, second forming die; 3, driving piece; 4, vacuum suction piece; 41, sealing groove; 42, piston plate; 43, pull rod; 44, electric telescopic rod; 5, cleaning piece; 51, first connecting rod; 511, first sliding block; 512, first torsional spring; 513, baffle; 514, elastic piece; 515, guide rod; 512, second connecting rod; 53, first roller; 54, second roller; 55, hinged rod; 56, liquid tank; 57, flexible liquid outlet pipe; 58, connecting plate; 581, transmission rod; 59, rigid liquid outlet pipe; 50, radial liquid outlet pipe; 6, support; 7, fixed plate; 8, hydraulic forming piece; 9, control valve; 91, circular ring plate; 92, circular ring block; 93, cylindrical piston; 94, support plate; 95, compression spring; 96, push rod. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for the sake of brevity, only parts of the relevant application are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0032] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modification of "one", "a plurality of" mentioned in the present disclosure is illustrative but not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] Referring to Figures 1-10 ,

[0036] A multifunctional hydraulic forming machine comprises a first forming die 1, a second forming die 2, a driving member 3, a vacuum suction member 4, and a cleaning member 5. The first forming die 1 and the second forming die 2 are both formed with grooves. The driving member 3 is used to realize the mutual approach of the first forming die 1 and the second forming die 2 until the first die and the second die are butted together, so that the grooves of the first die and the grooves of the second die are combined to form a forming chamber matching the shape of the part to be processed. The vacuum suction member 4 is connected to the output end of the driving member 3, and the vacuum suction member 4 is used to realize the formation of an adsorption area on the first die and the second die by the driving member 3, so that the driving member 3 and the first die and the second die constitute a detachable connection of vacuum adsorption. The cleaning member 5 is used to clean the adsorption area and coat a sticky layer on the adsorption area, so that the vacuum suction member 4 and the first die and the second die constitute vacuum adsorption through the sticky layer. The driving member 3 is a driving hydraulic cylinder in this embodiment, and the driving hydraulic cylinder is provided with two driving hydraulic cylinders, one of which is connected with the first die, and the other of which is connected with the second die, so as to realize the butt joint of the first die and the second die. The first die and the second die can also be away from each other, so as to take out the formed workpiece outward. The multifunctional hydraulic forming machine further comprises a support 6, which is used to install the driving member 3. The support 6 is provided with a fixed plate 7, which is used to seal the bottom of the first die and the second die or support the bottom of the first die and the second die. The support 6 is further provided with a hydraulic forming member 8, which adopts the prior art and is used to pressurize the inside of the part to be processed until the outer surface of the part to be processed is attached to the inner wall surface of the forming chamber when the first die and the second die are butted together to form the forming chamber.

[0037] Specifically, the cleaning member 5 comprises a first connecting rod 51, a second connecting rod 512, a first roller 53, a second roller 54 and a hinged rod 55. The first connecting rod 51 is provided with a sliding groove, and a sliding block is slidingly installed in the sliding groove. The second connecting rod 512 is provided with a sliding groove, and a sliding block is slidingly installed in the sliding groove of the second connecting rod 512. For the convenience of description, the sliding block in the first connecting rod 51 is referred to as a first sliding block 511, and the sliding block in the second connecting rod 512 is referred to as a second sliding block. The first roller 53 is rotationally connected with the first sliding block 511, and the second roller 54 is rotationally connected with the second sliding block. The vacuum suction member 4 is in a block structure in the embodiment, and the hinged rod 55 is fixedly connected with the vacuum suction member 4. The first connecting rod 51 is rotationally connected with the hinged rod 55, and the second connecting rod 512 is rotationally connected with the hinged rod 55. The first connecting rod 51 and the second connecting rod 512 are both provided with two groups, one of which is located on one side of the vacuum suction member 4, and the other of which is located on the other side opposite to the one side. The first connecting rod 51 on one side is located outside the second connecting rod 512, and the second connecting rod 512 on the other side is located outside the first connecting rod 51. A first torsion spring 512 is arranged at one side, and a second torsion spring is arranged at the other side, so that one end of the first torsion spring 512 at the side where the first connecting rod 51 is located outside the second connecting rod 512 is fixed with the first connecting rod 51, and the other end is fixed with the hinged rod 55. One end of the second torsion spring at the side where the second connecting rod 512 is located outside the first connecting rod 51 is fixed with the second connecting rod 512, and the other end is fixed with the hinged rod 55, so that the first connecting rod 51 and the second connecting rod 512 can be subjected to an external force of mutual rotation under the action of the first torsion spring 512 and the second torsion spring.

[0038] Specifically, the cleaning member 5 further comprises a baffle 513, a guide rod 515 and an elastic member 514. The baffle 513 is provided with two, one of which is fixedly installed on the first connecting rod 51, and the other of which is fixedly installed on the second connecting rod 512. The guide rod 515 is slidingly connected with the baffle 513, and the guide rod 515 is provided with two, one of which is fixedly connected with the first sliding block 511, and the other of which is fixedly connected with the second sliding block. Thus, the sliding of the first sliding block 511 and the second sliding block is guided by the guide rod 515. The elastic member 514 is provided with two, which are arranged between the first sliding block 511 and the baffle 513, and between the second sliding block and the baffle 513. The elastic member 514 is a compression spring 95 in the embodiment.

[0039] Specifically, the cleaning member 5 further comprises a liquid tank 56, a flexible liquid outlet pipe 57, a connecting plate 58, a transmission rod 581, a rigid liquid outlet pipe 59, and radial liquid outlet pipes 50. The liquid tank 56 is mounted on the vacuum suction member 4. The liquid tank 56 is provided with a liquid for forming a viscous layer. One end of the flexible liquid outlet pipe 57 is in fixed communication with the liquid tank 56, and the other end of the flexible liquid outlet pipe 57 extends to the first roller or the second roller and is indirectly connected with the first roller or the second roller. The rigid liquid outlet pipe 59 is in sliding connection with the flexible liquid outlet pipe 57, and the rigid liquid outlet pipe 59 is partially located inside the flexible liquid outlet pipe 57. The transmission rod 581 is in fixed connection with the rigid liquid outlet pipe 59. The connecting plate 58 is in fixed connection with the first sliding block 511, and a guide groove is formed in the connecting plate 58. The transmission rod 581 is inserted into the guide groove and is in sliding connection with the guide groove. The radial liquid outlet pipes 50 are in fixed connection with the rigid liquid outlet pipe 59.

[0040] More specifically, the length of the first roller or the second roller in the axial direction covers the width of the adsorption area in the axial direction of the first roller or the second roller; the rigid liquid outlet pipe 59 is provided with radial liquid outlet pipes 50; the radial liquid outlet pipes 50 are used for radial liquid outlet; the radial liquid outlet pipes 50 are in fixed communication with the rigid liquid outlet pipe 59; the length direction of the radial liquid outlet pipes 50 matches the axial direction of the first roller or the second roller. The radial liquid outlet pipes 50 are provided with two; one radial liquid outlet pipe 50 is opposite to the adsorption area, which realizes direct liquid spraying on the adsorption area; the other radial liquid outlet pipe 50 is opposite to the first roller or the second roller, which realizes liquid spraying on the first roller or the second roller; the two radial liquid outlet pipes 50 are communicated through a communication pipe.

[0041] Specifically, the rigid liquid outlet pipe 59 is provided with a control valve 9; the control valve 9 is used to realize the state of radial liquid outlet and the state of closing of the two radial liquid outlet pipes 50; the abutment of the first roller or the second roller and the adsorption area causes the sliding block to move upward relative to the first connecting rod 51. The sliding block drives the rigid liquid outlet pipe 59 to move upward through the connecting plate 58. The upward movement of the rigid liquid outlet pipe 59 in the flexible liquid outlet pipe 57 causes the control valve 9 to open. The control valve 9 comprises a circular ring plate 91, a circular ring block 92, a cylindrical plug 93, a support plate 94, a compression spring 95, and a push rod 96. The push rod 96 is fixedly installed inside the flexible liquid outlet pipe 57. The cylindrical plug 93 is in fixed connection with the push rod 96. The circular ring plate 91 is fixedly installed inside the rigid liquid outlet pipe 59. The circular ring block 92 is integrally formed with the circular ring plate 91. The cylindrical plug 93 is used to block the slot in the middle of the circular ring block 92. The support plate 94 is in fixed connection with the circular ring plate 91. The elastic member 514 is arranged between the support plate 94 and the cylindrical plug 93.

[0042] Specifically, the vacuum suction piece 4 is formed with a negative pressure area; a projection of the negative pressure area on the side of the first mold where the suction area is located is located inside the suction area; the vacuum suction piece 4 is also formed with a plurality of sealing grooves 41; the sealing grooves 41 are located at the edge of the negative pressure area.

[0043] More specifically, the negative pressure area is provided with a negative pressure chamber. The negative pressure chamber is provided with a piston plate 42, which is sealed with the inner wall of the negative pressure chamber; the piston plate 42 is fixedly installed with a pull rod 43. The vacuum suction piece 4 is fixed with the output end of the driving piece 3, and the output end of the driving piece 3 is an output rod, which is formed with a receiving chamber, and the pull rod 43 is located in the receiving chamber. The pull rod 43 is provided with an electric telescopic rod 44, which is used to pull the pull rod 43, so that the pull rod 43 drives the piston plate 42 to move, and the piston plate 42 makes the negative pressure chamber and the sealing chamber formed by abutting the first mold or the second mold to be vacuumized.

[0044] Workflow:

[0045] Place the part to be processed on the fixing plate 7, then drive the first mold and the second mold to approach each other until the first mold and the second mold are butted together, then the first mold and the second mold are formed with a forming chamber; the hydraulic forming piece 8 pressurizes the inside of the part to be processed, and the part to be processed is deformed by the pressure of the liquid, and the part to be processed expands to the edge until the outer surface of the part to be processed is in close contact with the inner wall of the forming chamber.

[0046] Because the shape of the part to be processed is matched with the shape of the forming chamber formed by the butt joint of the first mold and the second mold, in order to process products of different shapes, sometimes it is necessary to disassemble the first mold and the second mold and replace the first mold and the second mold of different shapes.

[0047] Taking the first mold as an example, first, the first mold is installed on the output end of the driving piece 3. The output end of the driving piece 3 is provided with a vacuum suction piece 4, that is, the vacuum suction piece 4 is fixed with the first mold, and the installation is completed.

[0048] Firstly, the first mold and the second mold are placed on the fixing plate 7, and then the driving part 3 drives the two vacuum suction parts 4 to move close to the first mold and the second mold, and the cleaning part 5 will be in contact with the first mold. Then, firstly, the first roller or the second roller is in contact with the surface of the first mold, and then the vacuum suction part 4 continues to move close to the first mold, at which time the first roller or the second roller is subjected to the action of the approaching vacuum suction part 4, and then the first roller or the second roller will make the sliding block slide in the sliding groove, and the sliding block will slide close to the vacuum suction part 4, and the elastic part 514 is compressed, which will make the first roller or the second roller have a larger pressure between the surface of the first mold. The movement of the sliding block close to the vacuum suction part 4 will drive the connecting plate 58 and the transmission rod 581 to move together, the transmission rod 581 drives the rigid pipe to move, the rigid pipe slides in the flexible pipe, and then the pull rod 43 will push the cylindrical plunger 93 to move, so that the cylindrical plunger 93 no longer blocks the opening at the annular block 92, at which time the flexible pipe and the rigid pipe are communicated, and then the liquid in the liquid tank 56 will pass through the flexible pipe and the rigid pipe to the radial liquid outlet pipe 50, and the two radial liquid outlet pipes 50 will be communicated under the action of the communication pipe. One radial liquid outlet pipe 50 directly sprays liquid on the adsorption area, and the other radial liquid outlet pipe 50 sprays liquid on the first roller or the second roller.

[0049] The vacuum suction part 4 continues to move close to the first mold, which will make the first connecting rod 51 and the second connecting rod 512 move away from each other until the vacuum suction part 4 is in contact with the first mold. During the process of moving away from each other, the first connecting rod 51 and the second connecting rod 512 will drive the two first rollers or second rollers to move away from each other, and the two first rollers or second rollers will slide on the surface of the first mold, so as to realize the uniform coating of the first roller or the second roller on the liquid. Then, the adsorption area is covered with a layer of viscous liquid, and the vacuum suction part 4 is in contact with the surface of the first mold, so that the viscous liquid can better seal the surface of the vacuum suction part 4 and the first mold. Then, the multiple sealing grooves 41 on the vacuum suction part 4 will be beneficial to the adhesion of the viscous liquid and the vacuum suction part 4, so as to better seal. Then, the electric telescopic rod 44 pulls the pull rod 43 to move, and the pull rod 43 pulls the piston plate 42 to move, so that the vacuum chamber is in negative pressure, thereby realizing the fixed installation of the vacuum suction part 4 and the first mold.

[0050] When disassembling, the electric telescopic rod 44 is used to reset the pull rod 43 and the piston plate 42, and the pressure of the vacuum chamber is increased, so that the disassembly is realized, and the disassembly is convenient. The above description is only some preferred embodiments of the present disclosure and an explanation of the technical principles applied. Those skilled in the art should understand that the scope of the application involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form a technical solution.

Claims

1. A multi-functional hydraulic forming machine characterized by comprising: The application relates to a vacuum suction device for a vacuum suction forming machine. The vacuum suction device comprises a first forming die, a second forming die, a driving part used for realizing mutual butt joint of the first forming die and the second forming die to form a forming chamber matched with the shape of a part to be processed, a vacuum suction part used for forming a suction area on the first forming die and the second forming die by the driving part, so that the driving part and the first forming die and the second forming die are connected in a detachable way by vacuum suction, a cleaning part used for cleaning the suction area and coating a sticky layer on the suction area, so that the vacuum suction part and the first forming die and the second forming die are connected by vacuum suction through the sticky layer. The cleaning part comprises a first connecting rod and a second connecting rod, a first roller installed on the first connecting rod and a second roller installed on the second connecting rod. The first connecting rod is hinged to the vacuum suction part, and the second connecting rod is hinged to the vacuum suction part. When the vacuum suction part is close to the first forming die or the second forming die, the first roller and the second roller move from the middle part of the suction area to the edge part, so that the first roller and the second roller clean the suction area. A sliding groove is formed in the first connecting rod, a sliding block is slidably installed in the sliding groove, the first roller is rotationally connected with the first sliding block, a baffle is installed in the sliding groove, a guide rod is installed on the sliding block and penetrates through the baffle, so that the guide rod is slidably connected with the baffle, and an elastic part is installed between the baffle and the sliding block and used for applying an elastic external force on the sliding block away from the baffle. A liquid tank is arranged on the vacuum suction part, a liquid used for forming the sticky layer is arranged in the liquid tank, a flexible liquid outlet pipe is arranged on the liquid tank, one end of the flexible liquid outlet pipe is fixedly communicated with the liquid tank, and the other end of the flexible liquid outlet pipe is connected with the first roller or the second roller, so that the other end of the flexible liquid outlet pipe connected with the first roller or the second roller moves together with the first roller or the second roller. A hinged rod fixed to the vacuum suction part is arranged on the vacuum suction part, the first connecting rod is rotationally connected with the hinged rod, the second connecting rod is rotationally connected with the hinged rod, a first torsional spring is arranged on the first connecting rod, a second torsional spring is arranged on the second connecting rod, and the first torsional spring and the second torsional spring are matched to apply a rotating external force on the first connecting rod and the second connecting rod to rotate towards each other. A connecting plate is fixedly installed on the sliding block, a transmission rod is arranged on the connecting plate, a rigid liquid outlet pipe is fixedly installed on the transmission rod, and the rigid liquid outlet pipe is slidably connected with the flexible liquid outlet pipe. The length of the first roller or the second roller in the axial direction covers the width of the suction area in the axial direction of the first roller or the second roller, a radial liquid outlet pipe is arranged on the rigid liquid outlet pipe, the radial liquid outlet pipe is used for spraying liquid in the radial direction, the radial liquid outlet pipe is fixedly communicated with the rigid liquid outlet pipe, and the length direction of the radial liquid outlet pipe matches the axial direction of the first roller or the second roller. Two radial liquid outlet pipes are arranged, one radial liquid outlet pipe is opposite to the suction area to directly spray liquid on the suction area, the other radial liquid outlet pipe is opposite to the first roller or the second roller to spray liquid on the first roller or the second roller, and the two radial liquid outlet pipes are communicated through a communication pipe.

2. The multi-functional hydro-forming machine of claim 1, wherein: ​ 3. The multi-functional hydro-forming machine of claim 1, wherein: ​ 4. The multi-functional hydro-forming machine of claim 3, wherein: ​ 5. The multi-functional hydro-forming machine of claim 4, wherein: ​ 6. The multi-functional hydraulic forming machine according to claim 5, characterized by: The rigid liquid outlet pipe is provided with a control valve; the control valve is used to realize the state of radial liquid outlet and the state of being closed of the two radial liquid outlet pipes; the abutment of the first roller or the second roller with the adsorption area makes the slider move upward relative to the first connecting rod, the slider drives the rigid liquid outlet pipe to move upward through the connecting plate, and the upward movement of the rigid liquid outlet pipe in the flexible liquid outlet pipe makes the control valve open.

7. The multi-functional hydro-forming machine of claim 1, wherein: The vacuum suction piece is formed with a negative pressure area; a projection of the negative pressure area on the side of the first mold where the adsorption area is located is located inside the adsorption area; a plurality of sealing grooves are further formed on the vacuum suction piece; the sealing grooves are located at the edge of the negative pressure area.

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