Forming device and method for metal forging

Abstract

The present application belongs to the technical field of metal forging, and specifically discloses a forming device for metal forging, which comprises a box body, a supporting table connected to one side of the upper end of the box body, supporting columns connected to the upper end of the supporting table, a top plate connected to the upper ends of the supporting columns, a hydraulic cylinder connected to the middle of the upper end of the top plate, a lower pressing plate connected to the output end of the hydraulic cylinder and extending through the lower end of the top plate, and openings provided in the lower pressing plate corresponding to the supporting columns. In addition, the present application also provides a forming method for metal forging. The method and the forming device for metal forging can separate the cleaning mechanism, the spraying mechanism and the lower die for lubrication, replace manual operation, ensure the cleaning and lubrication of the core rod and the lower die, and improve the forming quality and production efficiency of the aluminum alloy deep-hole forging.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal forging, and particularly discloses a forming device and method for metal forging. BACKGROUND

[0002] In the high-end manufacturing field of aerospace, automobile parts and the like, aluminum alloy has become the core raw material of deep hole structural parts (such as engine cylinder sleeve, hydraulic valve sleeve and the like) due to its characteristics of low density, high strength and corrosion resistance. Such aluminum alloy deep hole forged parts usually require high hole diameter precision, and need to be formed by a special forging die and a core rod in cooperation, that is, the outer wall shape of the forged part is limited by the cavity of the lower die, and the core rod is inserted into the inside of the blank to extrude the deep hole structure, so that the deep hole forged part meeting the size requirements is finally obtained. With the rapid increase in demand for aluminum alloy deep hole parts in high-end equipment, the automation and refinement of the forging process are required to be continuously improved, and the lubrication effect of the core rod and the lower die directly affects the forming quality and production efficiency of the forged part, and becomes a key link restricting the process upgrading.

[0003] In the current aluminum alloy deep hole forging process, the lubrication link of the core rod and the lower die has significant technical pain points. On the one hand, the outer wall of the core rod is easy to adhere to the metal scraps and oxide skin of the aluminum alloy blank in the high-temperature forging environment. If not cleaned in time, it will not only scratch the inner wall of the deep hole of the forged part, but also cause the core rod to stick to the forged part, which needs to be stopped and disassembled in severe cases, greatly reducing the production efficiency. On the other hand, in order to avoid sticking, the outer wall of the core rod and the inner wall of the lower die need to be sprayed with special silicon-based lubricating liquid before each forging. However, the existing operation mode has obvious defects. The lubricating liquid in the internal cavity of the lower die is very inconvenient to apply, and it is difficult for manual operation to achieve uniform coverage inside the cavity. The lubrication of the outer wall of the core rod is even more dependent on manual operation with a spray gun or a cloth, which not only has low efficiency, but also is affected by the experience of the operator, resulting in uneven thickness of the lubricating liquid (local over-thickness can easily cause bubbles in the forged part, and under-thickness cannot achieve the anti-sticking effect). At the same time, manual operation also has the safety hazard of high-temperature scalding, which is difficult to adapt to the production demand of large scale and automation. SUMMARY

[0004] The purpose of the present application is to solve the problems in the background art, and a forming device for metal forging is provided. The forming device for metal forging comprises a box body, a supporting table connected to one side of the upper end of the box body, supporting columns connected to the upper end of the supporting table, a top plate connected to the upper ends of the supporting columns, a hydraulic cylinder connected to the middle of the upper end of the top plate, a lower pressing plate connected to the output end of the hydraulic cylinder and extending through the lower end of the top plate, the lower pressing plate sliding on the outer walls of the supporting columns, openings being formed in the lower pressing plate corresponding to the supporting columns, the supporting columns being located in the openings, a core rod connected to the lower end of the lower pressing plate, and a lower die mechanism connected to the upper end of the supporting table.

[0005] The side of the support table is connected with a connecting table, the height of the connecting table is matched with the height of the support table, the lower end of the connecting table is connected with the upper end of the box, the upper end of the connecting table is connected with a support plate on one side, the upper end of the support plate is connected with a second air cylinder on one side, the second air cylinder is connected with a spraying mechanism on one end, the spraying mechanism comprises a liquid storage tank, the upper end of the liquid storage tank is connected with a frame on one side, and the frame is connected with a cleaning mechanism on one side.

[0006] Preferably, the lower mold mechanism comprises a connecting plate, the lower end of the connecting plate is connected with the upper end of the support table through a support block, the upper end of the connecting plate is connected with a connecting ring in the middle, the upper end of the connecting plate is provided with a first through hole in the middle, the diameter of the first through hole is the same as the inner diameter of the connecting ring, the inner wall of the box is connected with a jack on both sides of the lower end, and the upper end of the two jacks is connected with a sliding table.

[0007] Preferably, the lower end of the two lower mold bodies slides in the sliding groove, the support table and the upper end of the box are provided with a second through hole corresponding to the two lower mold bodies, the two lower mold bodies are located in the second through hole, the upper end of the two lower mold bodies is connected with a sliding rod on one side, the support table is provided with a connecting groove corresponding to the two sliding rods, and the two sliding rods are located in the two connecting grooves respectively.

[0008] Preferably, the lower end of the two lower mold bodies slides in the sliding groove, the support table and the upper end of the box are provided with a second through hole corresponding to the two lower mold bodies, the two lower mold bodies are located in the second through hole, the upper end of the two lower mold bodies is connected with a sliding rod on one side, the support table is provided with a connecting groove corresponding to the two sliding rods, and the two sliding rods are located in the two connecting grooves respectively.

[0009] Preferably, the lower end of the two lower mold bodies slides in the sliding groove, the support table and the upper end of the box are provided with a second through hole corresponding to the two lower mold bodies, the two lower mold bodies are located in the second through hole, the upper end of the two lower mold bodies is connected with a sliding rod on one side, the support table is provided with a connecting groove corresponding to the two sliding rods, and the two sliding rods are located in the two connecting grooves respectively.

[0010] Preferably, the frame is connected with a collecting cylinder at the lower side, the collecting cylinder is arranged in a circular ring shape, the upper end of the collecting cylinder is connected with a guide block, the guide block is arranged in an inverted V-shaped structure, the lower end of the guide block is connected with a second electric telescopic rod, the lower end of the second electric telescopic rod is connected with a fixed tube, the fixed tube is arranged in a circular arc structure, the outer wall of the fixed tube is connected with a second spray head at the lower side, the inner wall of the liquid storage tank is connected with a liquid pump at the lower side, the output end of the liquid pump is connected with a conveying pipe, one end of the conveying pipe extends to one side of the liquid storage tank, one end of the conveying pipe is connected with a first infusion tube, the first infusion tube is connected with the fixed tube at one end, the lower side of the collecting cylinder is connected with a guide block, the guide block is provided with a guide hole at the side, the first infusion tube is located in the guide hole, the outer wall of the first infusion tube is connected with a first infusion valve at one side, the first infusion tube is arranged in a hose shape, and the upper end of the conveying pipe is connected with a second infusion tube at one side.

[0011] Preferably, the cleaning mechanism comprises a shell, the shell is connected with the moving block at one side, the shell is connected with a mounting ring at one side, the inner wall of the shell is connected with a drive motor at the upper side, the output end of the drive motor is connected with a gear, one end of the gear extends to one side of the mounting ring, the mounting ring is provided with a connecting hole at the position corresponding to the gear, the gear is located in the connecting hole at one side, the gear is connected with a gear ring at one side, the inner wall of the gear ring is connected with a rotating ring, the inner wall of the rotating ring is connected with two scrapers at the upper side, the shape of the scrapers at one side is arranged in a V-shaped structure, and the inner wall of the rotating ring is connected with a steel wire brush at the lower side.

[0012] Preferably, the outer wall of the rotating ring is connected with a stabilizing rod at the upper side and the lower side, the inner wall of the mounting ring is provided with a stabilizing groove at the positions corresponding to the plurality of stabilizing rods, several stabilizing rods and the other stabilizing rods are respectively located in the two stabilizing grooves and slide, the inner wall of the connecting pipe is connected with a first spray head, the upper end of the connecting pipe is connected with one end of the second infusion tube at one side, the lower end of the second infusion tube extends to below the collecting cylinder in sequence through the moving block, the shell and the collecting cylinder, and one end of the second infusion tube is arranged in a hose shape.

[0013] A metal forging forming method for forging, comprising the following use method:

[0014] S1: by putting the preheated forging into the lower die mechanism, the forging is located in the lower die mechanism, the lower pressing plate is driven to slide on the outer wall of the plurality of supporting columns by the hydraulic cylinder, the lower pressing plate drives the core rod to move downward when pressing, the core rod is inserted into the lower die mechanism, and the core rod extrudes and forges the forging in the lower die mechanism;

[0015] S2: After the forging is completed, the lower pressing plate and the mandrel are moved upward by the hydraulic cylinder, so that the mandrel moves away from the forged piece, when the mandrel moves to the uppermost position, then the second cylinder drives the liquid storage tank, the frame body, the spraying mechanism and the cleaning mechanism to move downward below the mandrel, the cleaning mechanism is located directly below the mandrel, and the spraying mechanism is located directly above the lower die mechanism;

[0016] S3: The outer wall of the mandrel is cleaned and lubricating liquid is sprayed through the cleaning mechanism, and the inner wall of the lower die mechanism is sprayed with lubricating liquid through the spraying mechanism.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] Through the cleaning mechanism and the spraying mechanism, compared with the traditional manual manual smearing of lubricating liquid on the outer wall of the mandrel and the manual smearing in the cavity of the lower die, not only the manual intervention link is greatly reduced, but also the risk of scalding caused by the contact between the operator and the high-temperature mandrel and the die is avoided, and the problems of uneven lubrication and incomplete cleaning caused by manual operation are reduced, which adapts to the demand of large-scale production and significantly improves the production efficiency.

[0019] The cleaning mechanism is provided with a V-shaped scraper and a steel wire brush in combination, and is driven by a driving motor to rotate at a high speed, so that the V-shaped scraper can first scrape off the large aluminum alloy debris and oxide scale remaining on the outer wall of the mandrel, and then the steel wire brush can finely clean the surface of the mandrel, so as to ensure that there is no impurity remaining on the outer wall of the mandrel, and when the cleaning mechanism rises to the top end of the mandrel and then descends in reverse driven by the lead screw, the first nozzle sprays lubricating liquid at the same time, so that a continuous and uniform lubricating film can be formed along the outer wall of the mandrel, thereby avoiding the problems of bubbles in the forged piece caused by local over-thickness and adhesion caused by local under-thickness in the traditional manual smearing, and at the same time, the debris generated by the cleaning of the mandrel is guided to the collecting cylinder through the inverted V-shaped guide block for centralized recovery, so as to prevent the debris from falling into the lower die cavity to affect the roughness of the inner wall of the forged piece, and effectively ensure the hole diameter accuracy and the inner wall smoothness of the aluminum alloy deep hole forged piece.

[0020] The first cylinder drives the two lower die bodies to separate, the second electric telescopic rod drives the arc-shaped fixed pipe to descend to a suitable height, and the second nozzle can spray lubricating liquid into the inner wall of the cavity through the gap between the lower die bodies, thereby solving the pain point that the traditional manual smearing cannot uniformly smear inside the lower die, and the flow guide groove can guide the excess lubricating liquid to the annular liquid collecting cylinder for recovery, thereby reducing the waste of lubricating liquid and the production cost, avoiding the pollution of equipment parts caused by the random flow of excess liquid, and prolonging the service life of the whole device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the connection structure of the mandrel, the cleaning mechanism and the spraying mechanism of the present application;

[0023] Figure 3 It is the structure schematic view of the lower die mechanism, spraying mechanism and cleaning mechanism of the application;

[0024] Figure 4 It is the connection structure schematic view of the collecting cylinder, material guiding block and second electric telescopic rod of the application;

[0025] Figure 5 It is the opening structure schematic view of the flow guiding groove of the application;

[0026] Figure 6 It is the meshing connection structure schematic view of the gear and tooth ring of the application;

[0027] Figure 7 It is the connection structure schematic view of the mounting ring and multiple stabilizing rods of the application;

[0028] Figure 8 It is the connection structure schematic view of the mounting ring, tooth ring, scraper and steel wire brush of the application.

[0029] In the figure: 1, box body; 2, supporting table; 3, supporting column; 4, top plate; 5, hydraulic cylinder; 6, pressing plate; 7, core rod; 8, connecting plate; 9, connecting ring; 10, top rod; 11, sliding table; 12, first air cylinder; 13, lower die body; 14, first electric telescopic rod; 15, pushing block; 16, collecting cylinder; 17, flow guiding groove; 18, connecting table; 19, supporting plate; 20, second air cylinder; 21, liquid storage tank; 22, frame body; 23, collecting cylinder; 24, connecting motor; 25, lead screw; 26, moving block; 27, shell; 28, mounting ring; 29, driving motor; 30, gear; 31, tooth ring; 32, rotating ring; 33, scraper; 34, steel wire brush; 35, stabilizing rod; 36, connecting pipe; 37, first spray head; 38, material guiding block; 39, second electric telescopic rod; 40, fixed pipe; 41, second spray head; 42, liquid pump; 43, conveying pipe; 44, first liquid conveying pipe; 45, second liquid conveying pipe; 46, guiding block; 47, guiding port. DETAILED DESCRIPTION

[0030] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the drawings and specific embodiments.

[0031] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] As Figures 1-8The illustrated metal forging forming device for forging, comprising a box body 1, the upper end of the box body 1 is connected with a support table 2 on one side, the upper end of the support table 2 is connected with a support column 3, the upper end of the plurality of support columns 3 is connected with a top plate 4, the upper end of the top plate 4 is connected with a hydraulic cylinder 5 in the middle, the output end of the hydraulic cylinder 5 extends through to the lower end of the top plate 4 and is connected with a lower pressing plate 6, the lower pressing plate 6 is located on the outer wall of the plurality of support columns 3 and slides, the lower pressing plate 6 is provided with an opening corresponding to the plurality of support columns 3, and the plurality of support columns 3 are located inside the opening, the lower end of the lower pressing plate 6 is connected with a mandrel 7 in the middle, the upper end of the support table 2 is connected with a lower die mechanism, the lower die mechanism is used for installing two lower die bodies 13, one side of the support table 2 is connected with a connecting table 18, the height of the connecting table 18 is matched with the height of the support table 2, the lower end of the connecting table 18 is connected with the upper end of the box body 1 on one side, the upper end of the connecting table 18 is connected with a support plate 19 on one side, the upper part of one side of the support plate 19 is connected with a second air cylinder 20, one end of the second air cylinder 20 is connected with a spraying mechanism, and the spraying mechanism comprises a liquid storage tank 21, the upper end of the liquid storage tank 21 is connected with a frame 22 on one side, and the frame 22 is slidably connected with a cleaning mechanism on one side;

[0033] The support table 2 bears the lower die mechanism and ensures that the installation height is matched with the forging stroke of the mandrel 7, the support column 3 forms a stable forging frame and provides sliding guidance for the lower pressing plate 6, the hydraulic cylinder 5 drives the lower pressing plate 6 and the mandrel 7 to move up and down to complete deep hole forging, the mandrel 7 extends into the aluminum alloy blank to extrude a deep hole structure, the connecting table 18 is used to provide installation support for the support plate 19, so that the height of the spraying mechanism and the cleaning mechanism is matched with the lower die mechanism and the mandrel 7, the support plate 19 is used to fix the second air cylinder 20, the second air cylinder 20 pushes the spraying mechanism and the cleaning mechanism to move horizontally, so as to realize accurate alignment with the mandrel 7 and the lower die mechanism, the liquid storage tank 21 is used to store lubricating liquid, the upper end of the liquid storage tank 21 is connected with a liquid inlet pipe on one side, which provides a liquid source for lubrication of the mandrel 7 and the lower die body 13, the frame 22 is installed and connected with a motor 24 and a lead screw 25, which can provide guidance for the up-down movement of the cleaning mechanism, and the cleaning mechanism is used to clean the debris on the outer wall of the mandrel 7, so as to ensure the cleanliness of the mandrel 7 and the quality of subsequent forging.

[0034] As Figures 2-6As shown: the lower die mechanism includes a connecting plate 8, the lower end of the connecting plate 8 is connected with the upper end of the support table 2 through the support block, the upper end of the connecting plate 8 is connected with the connecting ring 9 in the middle, the upper end of the connecting plate 8 is provided with a first through hole in the middle, the diameter of the first through hole is the same as the inner diameter of the connecting ring 9, the inner wall of the box body 1 is connected with the ejector rod 10 on both sides of the lower end, the upper end of the two ejector rods 10 is connected with the sliding table 11, the upper end of the sliding table 11 is provided with a sliding groove in the middle, the middle of the two sides of the sliding table 11 is connected with the first cylinder 12, the output end of the two first cylinders 12 penetrates the sliding table 11 and extends to the inside of the sliding groove, the output end of the two first cylinders 12 is connected with the lower die body 13, the two lower die bodies 13 are symmetrically arranged, the lower end of the two lower die bodies 13 slides in the sliding groove, the support table 2 is provided with a second through hole corresponding to the two lower die bodies 13 at the upper end of the box body 1, the two lower die bodies 13 are located in the second through hole, the upper part of one side of the two lower die bodies 13 is connected with the sliding rod, the support table 2 is provided with the connecting groove corresponding to the two sliding rods, the two sliding rods are located in the two connecting grooves respectively, the sliding table 11 is connected with the first electric telescopic rod 14 below, the lower end of the first electric telescopic rod 14 is connected with the inner wall of the box body 1, the output end of the first electric telescopic rod 14 penetrates and extends to the upper end of the sliding table 11, the output end of the first electric telescopic rod 14 is connected with the push block 15, the sliding table 11 is provided with the placing groove corresponding to the push block 15 at the upper end, the push block 15 is located in the placing groove, the outer wall of the first electric telescopic rod 14 is connected with the liquid collecting cylinder 16, the liquid collecting cylinder 16 is arranged in a ring shape, the lower end of the liquid collecting cylinder 16 is connected with the inner wall of the box body 1, the upper end of the sliding table 11 is uniformly provided with the flow guide groove 17;

[0035] The connecting ring 9 is used for assisting the downward movement of the core rod 7 to avoid the deviation of the core rod 7 during the forging process. The first through hole provides a channel for the core rod 7 and the forged piece to enter and exit. The sliding table 11 is installed with the first cylinder 12, the lower die body 13 and other components. The sliding groove is used for guiding the horizontal sliding of the lower die body 13 to ensure that the two lower die bodies 13 can be precisely closed or separated. The first cylinder 12 drives the lower die body 13 to move along the sliding groove to open and close the lower die body 13, so as to place the forged piece and take out the forged piece after forging. The lower die body 13 is used for forming the outer wall cavity of the deep hole forged piece, and cooperates with the core rod 7 to complete the forming of the aluminum alloy deep hole forged piece. The sliding rod and the connecting groove are used in cooperation to assist the sliding of the lower die body 13 and limit the position to prevent the lower die body 13 from tilting during movement. The first electric telescopic rod 14 is used to drive the push block 15 to move up and down. The push block 15 is used to eject the forged piece from the cavity of the lower die body 13 after the forging is completed, which facilitates the taking out of the forged piece. The placing groove is used to store the push block 15 when it is not working to avoid affecting the closing of the lower die body 13 and the placement of the forged piece. The liquid collecting cylinder 16 is used to collect the excess lubricating liquid flowing down from the flow guide groove 17 to realize the recycling of the lubricating liquid and avoid waste and pollution of the equipment. The liquid collecting cylinder 16 is connected with a liquid outlet pipe at the lower side. The liquid outlet pipe extends through the box body 1 to the side. The flow guide groove 17 guides the excess lubricating liquid to flow smoothly into the liquid collecting cylinder 16 when spraying lubricating liquid to the inner walls of the two lower die bodies 13.

[0036] As shown in Figures 3-5 The connecting motor 24 is connected to the lower middle part of the inner wall of the frame 22. The output end of the connecting motor 24 is connected with a lead screw 25. The lower part of the outer wall of the lead screw 25 is threadedly connected with a moving block 26. The moving block 26 is located on the outer wall of the lead screw 25 and slides. One end of the moving block 26 extends to one side of the frame 22. A collecting cylinder 23 is connected to the lower side of the frame 22. The collecting cylinder 23 is in the shape of a circular ring. The upper end of the collecting cylinder 23 is connected with a guide block 38. The guide block 38 is in the shape of an inverted V-shaped structure. The lower middle part of the guide block 38 is connected with a second electric telescopic rod 39. The lower end of the second electric telescopic rod 39 is connected with a fixed tube 40. The fixed tube 40 is in the shape of a circular arc structure. The lower part of the outer wall of the fixed tube 40 is connected with a second nozzle 41. The lower end of the inner wall of the liquid storage tank 21 is connected with a liquid pump 42 on one side. The output end of the liquid pump 42 is connected with a conveying pipe 43. One end of the conveying pipe 43 extends to one side of the liquid storage tank 21. One end of the conveying pipe 43 is connected with a first liquid conveying pipe 44. One end of the first liquid conveying pipe 44 is connected with the upper end of the fixed tube 40 on one side. The lower end of the collecting cylinder 23 is connected with a guide block 46 on one side. A guide hole 47 is formed in the middle of one side of the guide block 46. One end of the first liquid conveying pipe 44 is located inside the guide hole 47. The outer wall of the first liquid conveying pipe 44 is connected with a first liquid valve on one side. One end of the first liquid conveying pipe 44 is in the shape of a hose. The upper end of the conveying pipe 43 is connected with a second liquid conveying pipe 45 on one side.

[0037] The connecting motor 24 drives the screw rod 25 to rotate, and drives the moving block 26 to move up and down through threaded transmission. The moving block 26 is used to connect the cleaning mechanism, drives the cleaning mechanism to move up and down along the frame body 22, realizes cleaning and lubrication of the core rod 7 at different height positions, the collecting cylinder 23 collects the debris falling off when the cleaning mechanism cleans the core rod 7, avoids the debris from polluting the equipment and affecting the subsequent process, the guide block 38 guides the cleaned debris to the inside of the collecting cylinder 23, prevents the debris from scattering, the second electric telescopic rod 39 drives the fixed pipe 40 to move up and down, adjusts the distance between the second spray head 41 and the lower mold body 13, ensures uniform spraying of the lubricating liquid, the fixed pipe 40 is used to install the second spray head 41, provides a stable installation carrier for the second spray head 41, the second spray head 41 sprays the lubricating liquid to the inner wall of the lower mold body 13, realizes lubrication of the lower mold body 13, the liquid pump 42 is used to provide power for conveying of the lubricating liquid, conveys the lubricating liquid in the liquid storage tank 21 to the conveying pipe 43, the conveying pipe 43 is used to distribute the lubricating liquid to the first liquid conveying pipe 44 and the second liquid conveying pipe 45, the first liquid conveying pipe 44 is used to convey the lubricating liquid to the fixed pipe 40, provides the lubricating liquid for the second spray head 41, the guide block 46 and the guide port 47 are used to guide and limit the first liquid conveying pipe 44, prevent the first liquid conveying pipe 44 from winding or deviating when the fixed pipe 40 is moved by the second electric telescopic rod 39, the first liquid conveying valve is used to control the on-off and flow of the lubricating liquid in the first liquid conveying pipe 44, the first liquid conveying pipe 44 in the form of a hose is deformed with the stretching and contraction of the second electric telescopic rod 39, avoids damage to the pipeline, and the second liquid conveying pipe 45 is used to convey the lubricating liquid to the connecting pipe 36 of the cleaning mechanism, provides the lubricating liquid for the first spray head 37.

[0038] As Figure 6 With Figure 7The cleaning mechanism includes a housing 27 connected to one side of the moving block 26, an installation ring 28 connected to one side of the housing 27, a drive motor 29 connected to one side of the inner wall of the housing 27, a gear 30 connected to the output end of the drive motor 29, the gear 30 extending through one end to one side of the installation ring 28, a connecting port being formed at the position corresponding to the gear 30 of the installation ring 28, the gear 30 being located inside the connecting port on one side, a gear ring 31 being meshed and connected on one side of the gear 30, a rotating ring 32 being connected to the inner wall of the gear ring 31, two scrapers 33 being connected to the inner wall of the rotating ring 32 on both sides of the upper part, the two scrapers 33 on one side being arranged in a V-shaped structure, a steel wire brush 34 being connected to the inner wall of the rotating ring 32 on both sides of the lower part, a stabilizing rod 35 being connected to the outer wall of the rotating ring 32 on the upper part and the lower part, a stabilizing groove being formed in the inner wall of the installation ring 28 at positions corresponding to the plurality of stabilizing rods 35, wherein several stabilizing rods 35 and the other several stabilizing rods 35 are respectively located inside the two stabilizing grooves and slide, a connecting pipe 36 being connected to the inner wall of the installation ring 28 on the upper part, a first spray head 37 being connected to the inner wall of the connecting pipe 36 in a circumferential direction, one end of a second liquid conveying pipe 45 being connected to the upper end of the connecting pipe 36, the second liquid conveying pipe 45 extending through the moving block 26, the housing 27 and the collecting cylinder 23 in sequence and extending below the collecting cylinder 23, the second liquid conveying pipe 45 being arranged in a soft tube shape at the lower end;

[0039] The installation ring 28 is used to install the gear ring 31, the rotating ring 32 and the connecting pipe 36, the connecting port is used to provide space for the meshing of the gear 30 and the gear ring 31, the drive motor 29 drives the gear 30 to rotate, the gear 30 drives the gear ring 31 to rotate through meshing transmission, the gear ring 31 is used to drive the rotating ring 32 to rotate synchronously, the rotating ring 32 is used to install the scrapers 33 and the steel wire brush 34, the scrapers 33 are used to scrape off the larger debris on the outer wall of the mandrel 7, the V-shaped structure is arranged to better fit the outer wall of the mandrel 7, improve the cleaning effect, the steel wire brush 34 is used to clean the small debris remaining on the outer wall of the mandrel 7, further improve the cleanliness of the outer wall of the mandrel 7, the stabilizing rod 35 and the stabilizing groove are used in cooperation to guide and limit the rotation of the rotating ring 32, ensure the coaxiality of the rotating ring 32 when rotating, avoid shaking, the connecting pipe 36 installs the first spray head 37 and conveys the lubricating liquid, the first spray head 37 is used to uniformly spray the lubricating liquid to the outer wall of the mandrel 7, realize the lubrication of the mandrel 7, the second liquid conveying pipe 45 arranged in a soft tube shape is deformed with the up and down movement of the moving block 26, ensure that the lubricating liquid can be stably conveyed to the connecting pipe 36.

[0040] A metal forging forming method for forging, comprising the following use method:

[0041] S1: by putting the preheated forging into the lower die mechanism, the forging is located inside the lower die mechanism, the lower pressing plate 6 is driven by the hydraulic cylinder 5 to slide outside the outer wall of the plurality of supporting columns 3, the lower pressing plate 6 drives the mandrel 7 to move downward when pressing downward, the lower end of the mandrel 7 is inserted into the lower die mechanism, and the mandrel 7 extrudes and forges the forging in the lower die mechanism.

[0042] S2: After the forging is completed, the lower plate 6 and the mandrel 7 are moved upward by the hydraulic cylinder 5, so that the mandrel 7 is away from the forged piece. When the mandrel 7 moves to the uppermost position, the second cylinder 20 pushes the liquid storage tank 21, the frame 22, the spraying mechanism and the cleaning mechanism to move downward below the mandrel 7. The cleaning mechanism is located directly below the mandrel 7, and the spraying mechanism is located directly above the lower die mechanism.

[0043] S3: The outer wall of the mandrel 7 is cleaned and lubricating liquid is sprayed by the cleaning mechanism, and the inner wall of the lower die mechanism is sprayed with lubricating liquid by the spraying mechanism.

[0044] Working principle: first, enter the forging forming stage, put the preheated aluminum alloy blank into the cavity of the lower die mechanism, start the two first cylinders 12, drive the lower die body 13 to move along the sliding groove of the sliding table 11 to the closed state, form a complete deep hole forming cavity, then start the hydraulic cylinder 5, drive the lower plate 6 to slide stably along the support column 3, drive the mandrel 7 to descend synchronously, the lower end of the mandrel 7 is accurately inserted into the center of the blank, and the deep hole forging is completed in cooperation with the cavity of the lower die body 13.

[0045] After the forging is completed, the hydraulic cylinder 5 drives the lower plate 6 and the mandrel 7 to rise to the initial position, the mandrel 7 completely separates from the lower die mechanism, the first electric telescopic rod 14 drives the push block 15 to push the forged piece upward, which is convenient for workers to take out the forged piece, the second cylinder 20 is started, and the liquid storage tank 21, the frame 22 and the attached cleaning mechanism and spraying mechanism are translated to the center of the equipment, until the rotating ring 32 of the cleaning mechanism is coaxial with the mandrel 7, located directly below the mandrel 7, the fixed pipe 40 of the spraying mechanism is aligned with the separation area of the lower die body 13, located directly above the lower die mechanism, and the alignment is completed.

[0046] The connecting motor 24 is started, the lead screw 25 is driven to rotate, the moving block 26 and the cleaning mechanism are driven to move upward along the frame 22, and the drive motor 29 of the cleaning mechanism is started. The gear 30 meshes with the gear ring 31 to drive the rotating ring 32 to rotate stably. The stable rod 35 slides along the stable groove of the mounting ring 28 to ensure coaxiality. During the upward movement of the rotating ring 32, the V-shaped scraper 33 on the inner wall first scrapes off the aluminum alloy scraps and oxide skin remaining on the outer wall of the mandrel 7, and the steel wire brush 34 below simultaneously finely cleans the surface of the mandrel 7. The scraps generated in the cleaning process fall into the collecting cylinder 23 under the action of gravity, are guided and collected by the inverted V-shaped guide block 38, and the equipment is prevented from being polluted by the scraps.

[0047] When the cleaning mechanism rises to the top of the mandrel 7, the connecting motor 24 is driven in reverse, driving the cleaning mechanism to start descending, while the liquid pump 42 is started, and the lubricating liquid in the liquid storage tank 21 is distributed through the delivery pipe 43, one way through the second liquid delivery pipe 45 to the connecting pipe 36, and through the first spray head 37 to the outer wall of the mandrel 7. The lubricating liquid is evenly sprayed on the outer wall of the mandrel 7, and during the descending process of the cleaning mechanism with the moving block 26, it ensures that the lubricating liquid forms a continuous and uniform lubricating film on the outer wall of the mandrel 7; the other way through the first liquid delivery pipe 44 to the fixed pipe 40, at this time, the two first air cylinders 12 drive the lower mold body 13 to separate along the sliding groove, the second electric telescopic rod 39 drives the fixed pipe 40 to descend to the separation area of the lower mold mechanism, the second spray head 41 sprays lubricating liquid to the inner wall of the cavity of the two lower mold bodies 13, and the excess lubricating liquid flows into the liquid collecting cylinder 16 through the flow guide groove 17 on the sliding table 11 under the action of gravity to complete the recovery, avoiding waste and equipment pollution.

[0048] After all the processes are completed, the liquid pump 42 stops working, the second electric telescopic rod 39 drives the fixed pipe 40 to reset, the second air cylinder 20 pushes the overall mechanism to reset to one side of the connecting table 18, the two first air cylinders 12 drive the lower mold body 13 to close again, and wait for the next aluminum alloy blank to be put in, ensuring the lubricating quality of the mandrel 7 and the lower mold, effectively avoiding the adhesion or surface defects of deep hole forgings.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A forming apparatus for forging metal forgings, comprising a housing (1), characterized in that: The upper side of the box (1) is connected to a support platform (2), and the upper end of the support platform (2) is connected to a support column (3). The upper end of the multiple support columns (3) is connected to a top plate (4). The middle of the upper end of the top plate (4) is connected to a hydraulic cylinder (5). The output end of the hydraulic cylinder (5) extends through to the lower end of the top plate (4) and is connected to a lower pressure plate (6). The lower pressure plate (6) slides on the outer wall of the multiple support columns (3). The lower pressure plate (6) has an opening at the position of the multiple support columns (3). The multiple support columns (3) are located inside the opening. The middle of the lower end of the lower pressure plate (6) is connected to a core rod (7). The upper end of the support platform (2) is connected to a lower mold mechanism. A connecting platform (18) is connected to one side of the support platform (2). The height of the connecting platform (18) is adapted to the height of the support platform (2). The lower end of the connecting platform (18) is connected to one side of the upper end of the box body (1). A support plate (19) is connected to one side of the upper end of the connecting platform (18). A second cylinder (20) is connected to the upper part of one side of the support plate (19). A spraying mechanism is connected to one end of the second cylinder (20). The spraying mechanism includes a liquid storage tank (21). A frame (22) is connected to one side of the upper end of the liquid storage tank (21). A cleaning mechanism is slidably connected to one side of the frame (22). A connecting motor (24) is connected to the middle of the lower end of the inner wall of the frame (22). A lead screw (25) is connected to the output end of the connecting motor (24). A moving block (26) is threaded to the lower part of the outer wall of the lead screw (25). The moving block (26) slides on the outer wall of the lead screw (25). One end of the moving block (26) extends through to one side of the frame (22). A collection cylinder (23) is connected to the lower part of one side of the frame (22). A guide block (38) is connected to the upper end of the collection cylinder (23). A second electric telescopic rod (39) is connected to the middle of the lower end of the guide block (38). A fixed pipe (40) is connected to the lower end of the second electric telescopic rod (39). The fixed pipe (40) is arranged in an arc shape. A second nozzle (41) is connected to the lower part of the outer wall of the fixed pipe (40). A liquid pump (42) is connected to the lower side of the inner wall of the liquid storage tank (21). A delivery pipe (43) is connected to the output end of the liquid pump (42). One end of the delivery pipe (43) extends through to one side of the liquid storage tank (21). A first delivery pipe (44) is connected to one end of the delivery pipe (43). One end of the first delivery pipe (44) is connected to the upper side of the fixed pipe (40). A second delivery pipe (45) is connected to the upper side of the delivery pipe (43). The cleaning mechanism includes a housing (27), one side of which is connected to the side of the moving block (26). A mounting ring (28) is connected to one side of the housing (27). A drive motor (29) is connected to the upper side of the inner wall of the housing (27). A gear (30) is connected to the output end of the drive motor (29). One end of the gear (30) extends through to one side of the mounting ring (28). A connection port is opened on the mounting ring (28) corresponding to the gear (30). One side of the gear (30) is located inside the connection port. A toothed ring (31) is meshed with one side of the gear (30). A rotating ring (32) is connected to the inner wall of the toothed ring (31). Scrapers (33) are connected to the upper part of both sides of the inner wall of the rotating ring (32). The two scrapers (33) are V-shaped on one side. Wire brushes (34) are connected to the lower part of both sides of the inner wall of the rotating ring (32). The upper part of the inner wall of the mounting ring (28) is connected to a connecting pipe (36), and the inner wall of the connecting pipe (36) is circumferentially connected to a first nozzle (37). The upper end of the connecting pipe (36) is connected to one end of the second infusion pipe (45).

2. The forming apparatus for forging metal forgings according to claim 1, characterized in that: The lower mold mechanism includes a connecting plate (8), the lower end of which is connected to the upper end of the support platform (2) via a support block. A connecting ring (9) is connected to the middle of the upper end of the connecting plate (8). A first through hole is opened in the middle of the upper end of the connecting plate (8). The diameter of the first through hole is the same as the inner diameter of the connecting ring (9). Top rods (10) are connected to both sides of the lower end of the inner wall of the box (1). A slide table (11) is connected to the upper end of the two top rods (10). A slide groove is opened in the middle of the upper end of the slide table (11). A first cylinder (12) is connected to the middle of both sides of the slide table (11). The output ends of the two first cylinders (12) pass through the slide table (11) and extend into the slide groove. The output ends of the two first cylinders (12) are connected to the lower mold body (13). The two lower mold bodies (13) are symmetrically arranged.

3. The forming apparatus for forging metal forgings according to claim 2, characterized in that: The lower ends of the two lower mold bodies (13) slide inside the slide groove. The upper ends of the support platform (2) and the box body (1) are provided with second through holes corresponding to the two lower mold bodies (13). The two lower mold bodies (13) are located inside the second through holes. The upper part of one side of the two lower mold bodies (13) is connected to a sliding rod. The support platform (2) is provided with connecting grooves corresponding to the two sliding rods. The two sliding rods are located inside the two connecting grooves respectively.

4. The forming apparatus for forging metal forgings according to claim 3, characterized in that: A first electric telescopic rod (14) is connected below the slide (11). The lower end of the first electric telescopic rod (14) is connected to the lower end of the inner wall of the box (1). The output end of the first electric telescopic rod (14) extends through to the upper end of the slide (11). A push block (15) is connected to the output end of the first electric telescopic rod (14). A placement groove is opened at the upper end of the slide (11) corresponding to the push block (15). The push block (15) is located inside the placement groove. A liquid collection cylinder (16) is connected to the outer wall of the first electric telescopic rod (14). The liquid collection cylinder (16) is arranged in a ring. The lower end of the liquid collection cylinder (16) is connected to the lower end of the inner wall of the box (1). A guide groove (17) is evenly opened at the upper end of the slide (11).

5. The forming apparatus for forging metal forgings according to claim 4, characterized in that: The collecting cylinder (23) is arranged in a circular shape, and the guide block (38) is arranged in an inverted V-shaped structure. A guide block (46) is connected to one side of the lower end of the collecting cylinder (23). A guide port (47) is opened in the middle of one side of the guide block (46). One end of the first infusion tube (44) is located inside the guide port (47). A first infusion valve is connected to one side of the outer wall of the first infusion tube (44). One end of the first infusion tube (44) is arranged in a flexible tube shape.

6. The forming apparatus for forging metal forgings according to claim 5, characterized in that: The upper and lower parts of the outer wall of the rotating ring (32) are connected to stabilizing rods (35). The inner wall of the mounting ring (28) is provided with stabilizing grooves corresponding to multiple stabilizing rods (35). Several of the stabilizing rods (35) and several other stabilizing rods (35) slide inside the two stabilizing grooves respectively. The lower end of the second infusion tube (45) passes through the moving block (26), the shell (27) and the collecting cylinder (23) in sequence and extends to the bottom of the collecting cylinder (23). The lower end of the second infusion tube (45) is set in the shape of a flexible tube.

7. A forming method for forging metal forgings, using the forming apparatus for forging metal forgings as described in claim 6, characterized in that... Including the following usage methods: S1: By placing the preheated forging into the lower die mechanism, the forging is located inside the lower die mechanism. The hydraulic cylinder (5) drives the lower pressure plate (6) to slide on the outer wall of multiple support columns (3). When the lower pressure plate (6) presses down, it drives the mandrel (7) to move downward. The lower end of the mandrel (7) is inserted into the lower die mechanism. The mandrel (7) extrudes and forges the forging inside the lower die mechanism. S2: After forging, the lower pressure plate (6) and mandrel (7) are moved upward by the hydraulic cylinder (5) so that the mandrel (7) is away from the forging. When the mandrel (7) moves to the top, the second cylinder (20) then pushes the liquid storage tank (21), frame (22), spraying mechanism and cleaning mechanism to move downward to the mandrel (7). The cleaning mechanism is located directly below the mandrel (7) and the spraying mechanism is located directly above the lower die mechanism. S3: The outer wall of the mandrel (7) is cleaned and lubricated by the cleaning mechanism, and the inner wall of the lower mold mechanism is sprayed with lubricating fluid by the spraying mechanism.

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