Forging equipment and method for large forgings

Abstract

The invention discloses a forging device and method for large forgings, belonging to the technical field of forging. The forging device for large forgings comprises a base, and also comprises: a forging table, which is arranged on the base and used for supporting the forging body; a top plate, which is arranged on the upper side of the base, and a guide rod is arranged between the top plate and the base; a hydraulic cylinder, which is fixed on the bottom wall of the top plate, and the piston rod of the hydraulic cylinder is connected with a pressure seat for upsetting the forging body, and the pressure seat is slidably connected to the outer side of the guide rod; and a pushing mechanism, which is connected to the guide rod and used for pushing away oxidized debris generated when the forging body is upset. The invention automatically removes the oxidized debris generated on the forging table when upsetting the forging body, thereby avoiding the combination of the forging with a coarsened cross section during upsetting and the accumulated oxidized debris, thereby ensuring the forging quality and efficiency of the forging, and reducing the workload of the staff and the danger of manual removal.

Description

Technical Field

[0001] The present invention relates to the technical field of forging, and in particular to a forging device and method for large forgings. Background Art

[0002] Forging is a processing method that uses forging machinery to apply pressure to metal billets to cause them to undergo plastic deformation to obtain forgings with certain mechanical properties, shapes and sizes. Forging can eliminate defects such as loose cast metal produced during the smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than those of castings of the same material. For important parts in machinery with high loads and severe working conditions, forgings are mostly used, except for simpler shapes that can be made of rolled plates, profiles or welded parts.

[0003] In the prior art, large shaft forgings need to be upset during the forging process. During the upsetting forging process, a large amount of debris will be generated on the forging table. During the upsetting period, workers need to use hand-held tools to push and remove the large amount of oxidized debris scattered on the forging table to avoid the upsetting of the billet. During the process of reducing the height and increasing the bottom cross-section, the coarsened cross-section of the upper billet is forced to move downward and combine with the oxidized debris accumulated at the bottom, which affects the forging quality of the billet. The splashing high-temperature oxidized debris is dangerous to the workers. At the same time, after each forging is completed, the forging table still needs to be manually cleaned as a whole, which consumes a lot of time and affects the forging efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a forging device and method for large forgings.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A forging device for large forgings, comprising a base and:

[0007] A forging table, which is arranged on a base and is used to support a forging body;

[0008] A top plate, the top plate is arranged on the upper side of the base, and a guide rod is arranged between the top plate and the base;

[0009] A hydraulic cylinder, wherein the hydraulic cylinder is fixed to the bottom wall of the top plate, a piston rod of the hydraulic cylinder is connected to a press seat for upsetting the forging body, and the press seat is slidably connected to the outer side of the guide rod;

[0010] A pusher mechanism, which is connected to the guide rod and is used to push away oxidized debris generated during upsetting of the forging body;

[0011] Wherein, the pushing mechanism comprises an annular shell fixedly connected to the guide rod, a traveling assembly arranged on the annular shell, and a pushing assembly arranged on the traveling assembly.

[0012] Preferably, the walking assembly includes a moving frame slidably connected to an annular shell, a driving motor is fixedly provided on the moving frame, an output shaft of the driving motor passes through the moving frame and is connected to a driving shaft, a driving gear is provided at the end of the driving shaft, and a gear ring meshing with the driving gear is fixedly provided in the annular shell.

[0013] Preferably, the top of the annular shell is rotatably connected to a rotating ring, the rotating ring is connected to the movable frame, and the driving shaft is rotatably connected to the rotating ring.

[0014] Preferably, the pushing assembly includes a first elastic telescopic rod fixedly mounted on a movable frame, an end of the first elastic telescopic rod away from the movable frame is connected to a connecting plate, a second elastic telescopic rod is fixedly mounted on the connecting plate, an end of the second elastic telescopic rod away from the connecting plate is connected to a mounting seat, a centrifugal portion is arranged in the mounting seat, and a conical material guide seat is arranged on the top of the mounting seat.

[0015] Preferably, the centrifugal part comprises a rotating rod rotatably connected to the mounting seat, and the rotating rod is provided with a plurality of shifting pieces evenly distributed in a circumference, and the shifting pieces movably abut against the forging body.

[0016] Preferably, a telescopic tube is rotatably connected between the conical material guide seat and the movable frame, a second bevel gear and a third bevel gear are respectively provided at both ends of the telescopic tube, a first bevel gear meshing with the second bevel gear is provided on the driving shaft, and a driven bevel gear meshing with the third bevel gear is provided on the rotating rod.

[0017] Preferably, a receiving groove is provided on the base, the forging table is movably arranged in the receiving groove, and a third elastic telescopic rod is arranged between the inner wall of the receiving groove and the bottom of the forging table.

[0018] Preferably, the forging table includes a lower table body connected to the third elastic telescopic rod and an upper table body rotatably connected to the lower table body through a pin shaft, a cavity is opened in the lower table body, a fourth elastic telescopic rod is movably arranged between the inner wall of the cavity and the upper table body, and a sealing baffle is also arranged on the side of the upper table body.

[0019] Preferably, an annular groove is provided on the lower platform, the bottom wall of the annular groove is set as a material guiding slope, a slider is slidably connected in the annular groove, a pull rope is fixed on the slider, and the end of the pull rope away from the slider passes through the movable frame and is connected to the connecting plate.

[0020] The present invention also discloses a forging method for a large forging, which is performed by using a forging device for a large forging, and comprises the following steps:

[0021] S1: The staff uses a sling or a fork to place the forging body on the forging table, and the forging body presses down the upper body which is tilted relative to the lower body, so that the raised end of the upper body moves downward, the fourth elastic telescopic rod is compressed, and the upper body approaches the lower body until the upper side of the upper body is horizontally placed and fits with the lower body;

[0022] When the upper platform cannot continue to rotate and move downward, the forging body presses down the forging table as a whole, so that the forging table moves downward into the receiving groove of the base, and the forging table drives the slider to move downward so that the pull rope is no longer tight, and the first elastic telescopic rod pushes the connecting plate and the second elastic telescopic rod connected to the connecting plate, the mounting seat and the centrifugal part to move toward the center of the forging table, so that the material-shifting piece of the centrifugal part abuts against the forging body;

[0023] S2: Then the hydraulic cylinder is controlled to operate, and the piston rod of the hydraulic cylinder drives the press seat to move up and down reciprocatingly, and the press seat performs upsetting work on the forging body on the forging table. A large amount of oxidized debris generated during the upsetting of the forging body falls on the forging table. As the upsetting of the forging body continues, the coarsened cross section of the forging body pushes the conical guide seat on the top of the mounting seat, so that the conical guide seat drives the mounting seat and the centrifugal part on the lower side to move away from the forging body, and the second elastic telescopic rod is squeezed, but the material-pickup sheet of the centrifugal part still remains in contact with the forging body;

[0024] S3: Control the driving motor to run, the output shaft of the driving motor drives the driving shaft to rotate, the driving gear at the bottom of the driving shaft meshes with the gear ring in the annular shell, so that the moving frame rotates along the circumference of the annular shell, and then the walking assembly drives the pushing assembly to move in a circle, so that the pushing piece of the pushing assembly moves the oxidized debris accumulated on the lower side of the forging body during the rotation;

[0025] When the driving shaft rotates, the first bevel gear meshes with the second bevel gear on the telescopic tube for transmission, the second bevel gear drives the telescopic tube and the third bevel gear at the other end of the telescopic tube to rotate, the third bevel gear meshes with the driven bevel gear on the rotating rod for transmission, so that the rotating rod drives the prying piece to rotate, and when the prying piece rotates, the oxidized debris accumulated on the lower side of the forging body is pried in a circular motion, so that the oxidized debris generates centrifugal force under the circumferential prying, so that the oxidized debris pried by the prying piece is moved away from the lower side of the forging body;

[0026] S4: As the press seat continues to press down on the forging body, the upsetting work of the forging body is completed, and the staff uses the fork or the lifting device to remove the forging body from the forging table again;

[0027] S5: After the forging body is moved away, the forging table is no longer subjected to force and moves upward as a whole under the elastic force of the third elastic telescopic rod. When the lower table moves upward, the slider applies tension to the pull rope, so that the pull rope pulls the connecting plate, and the connecting plate approaches the moving frame. The first elastic telescopic rod is squeezed, so that the connecting plate drives the pushing assembly to approach the annular shell and away from the forging table. The upper table of the forging table is reset under the elastic force of the fourth elastic telescopic rod. The upper table and the lower table are inclined. The oxidized debris still remaining on the upper table automatically slides down along the inclined upper table at this time, completing the automatic cleaning of the upper table, and preparing for the subsequent upsetting work of other forgings.

[0028] Compared with the prior art, the present invention provides a forging device and method for large forgings, which has the following beneficial effects:

[0029] 1. The forging equipment and method of large forgings, when the forging body is upsetting, the pusher mechanism automatically removes the oxidized debris generated by the forging on the forging table, thereby avoiding the combination of the forging with a thickened cross section and the accumulated oxidized debris during upsetting, reducing the time consumed by manual operation, reducing the workload of the staff and the danger of manual removal, and ensuring the forging quality and forging efficiency of the forging;

[0030] 2. The forging equipment and method of the large forgings, by making the forging body press down on the forging table, so that the forging table no longer applies tension to the pusher mechanism through the pull rope, so that the pusher plate of the pusher mechanism can abut against the forging body on the forging table, thereby removing the oxidized debris generated on the lower side of the forging body. After the forging is upsetting, the forging is removed from the forging table, the forging table automatically moves up and applies tension to the connecting plate of the pusher mechanism through the pull rope, so that the connecting plate drives the mounting seat away from the forging table through the second elastic telescopic rod, so that the mounting seat will not restrict the upper table body that is reset and flipped, and will not hinder the oxidized debris still remaining on the upper table body from automatically sliding down along the upper table body that is tilted at this time, thereby improving the cleaning efficiency of the surface of the forging table, reducing the time consumed by manual operation, and improving the continuous forging efficiency of the equipment for forgings;

[0031] 3. The forging equipment and method of large forgings are provided with a sealing baffle on the lower side of the upper table, so that when the upper table is flipped relative to the lower table, the sealing baffle can block the gap between the upper table and the lower table to prevent foreign debris from falling into the cavity and affecting the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the forging table and the material pushing mechanism of the present invention;

[0034] Figure 3It is a schematic diagram of the external structure of the annular shell of the present invention;

[0035] Figure 4 It is a schematic diagram of the external structure of the mobile rack of the present invention;

[0036] Figure 5 It is a schematic diagram of the external structure of the connecting plate of the present invention;

[0037] Figure 6 For the present invention Figure 5 A partial enlarged structural diagram of the middle part;

[0038] Figure 7 It is a schematic diagram of the external structure of the drive shaft of the present invention;

[0039] Figure 8 It is a schematic diagram of the external structure of the mounting base of the present invention;

[0040] Fig. 9 It is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0041] Fig.10 It is a schematic diagram of the structure of the forging table of the present invention when it is in use;

[0042] Fig.11 It is a schematic diagram of the structure of the forging table of the present invention when it is not in use.

[0043] In the figure: 1, base; 101, guide rod; 2, forging table; 201, lower table body; 202, upper table body; 2021, sealing baffle; 3, forging body; 4, top plate; 5, hydraulic cylinder; 501, press seat; 6, annular shell; 601, gear ring; 602, rotating ring; 7, moving frame; 701, driving motor; 702, driving shaft; 7021, first bevel gear; 703, driving gear; 8, first elastic telescopic rod; 801 , connecting plate; 802, second elastic telescopic rod; 803, mounting seat; 9, centrifugal part; 901, rotating rod; 9011, driven bevel gear; 902, material shifting piece; 10, conical material guide seat; 11, telescopic tube; 111, second bevel gear; 112, third bevel gear; 12, accommodating groove; 121, third elastic telescopic rod; 13, cavity; 131, fourth elastic telescopic rod; 14, annular groove; 141, slider; 142, pull rope. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Example 1: Reference Figure 1-8 , a forging device for large forgings, comprising a base 1, and further comprising:

[0047] A forging table 2, which is arranged on the base 1 and is used to support a forging body 3;

[0048] A top plate 4, which is disposed on the upper side of the base 1, and a guide rod 101 is disposed between the top plate 4 and the base 1;

[0049] A hydraulic cylinder 5, which is fixed to the bottom wall of the top plate 4, and a piston rod of the hydraulic cylinder 5 is connected to a press seat 501 for upsetting the forging body 3, and the press seat 501 is slidably connected to the outer side of the guide rod 101;

[0050] A pushing mechanism, which is connected to the guide rod 101 and is used to push away oxidized debris generated during upsetting of the forging body 3;

[0051] The pushing mechanism includes an annular shell 6 fixedly connected to the guide rod 101, a traveling assembly arranged on the annular shell 6, and a pushing assembly arranged on the traveling assembly.

[0052] Specifically, the staff uses a sling or a fork to place the forging body 3 to be upset on the forging table 2, and then controls the operation of the hydraulic cylinder 5. The piston rod of the hydraulic cylinder 5 drives the pressure seat 501 to move up and down reciprocatingly, and the pressure seat 501 upsets the forging body 3 on the forging table 2. A large amount of oxidized debris generated during the upsetting of the forging body 3 falls on the forging table 2. During this period, the pushing mechanism is controlled to move, and the pushing mechanism automatically removes the oxidized debris generated by the forging on the forging table 2, so as to avoid the forging with a coarsened cross-section during upsetting from combining with the accumulated oxidized debris, thereby reducing the time consumed by manual operation, reducing the workload of the staff and the danger of manual removal, and ensuring the forging quality and efficiency of the forging.

[0053] Example 2: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 5 and Figure 8, a forging equipment for large forgings, based on Example 1, further, the walking assembly includes a moving frame 7 slidably connected to the annular shell 6, a driving motor 701 is fixedly provided on the moving frame 7, the output shaft of the driving motor 701 passes through the moving frame 7 and is connected to a driving shaft 702, a driving gear 703 is provided at the end of the driving shaft 702, and a gear ring 601 meshing with the driving gear 703 is fixedly provided in the annular shell 6.

[0054] Furthermore, the pushing assembly includes a first elastic telescopic rod 8 fixedly mounted on the movable frame 7, the end of the first elastic telescopic rod 8 away from the movable frame 7 is connected to a connecting plate 801, a second elastic telescopic rod 802 is fixedly mounted on the connecting plate 801, the end of the second elastic telescopic rod 802 away from the connecting plate 801 is connected to a mounting seat 803, a centrifugal portion 9 is arranged in the mounting seat 803, and a conical material guide seat 10 is arranged on the top of the mounting seat 803.

[0055] Furthermore, the centrifugal part 9 includes a rotating rod 901 rotatably connected to the mounting seat 803 , and a plurality of shifting pieces 902 evenly distributed in a circumference are provided on the rotating rod 901 , and the shifting pieces 902 movably abut against the forging body 3 .

[0056] Specifically, a large amount of oxidized debris generated during the upsetting of the forging body 3 falls on the forging table 2. As the upsetting of the forging body 3 continues, the thickened cross-section of the forging body 3 pushes the conical guide seat 10 on the top of the mounting seat 803, so that the conical guide seat 10 drives the mounting seat 803 and the centrifugal part 9 on the lower side to move to the side away from the forging body 3. The second elastic telescopic rod 802 is squeezed, but the centrifugal part 9 always maintains abutment with the forging body 3, and the drive motor 701 is controlled to run. The output shaft of the drive motor 701 drives the drive shaft 702 to rotate, and the drive gear 703 at the bottom of the drive shaft 702 meshes with the gear ring 601 in the annular shell 6 for transmission, so that the moving frame 7 rotates along the circumference of the annular shell 6, and then the walking assembly drives the pushing assembly to move in a circle, so that the pushing piece 902 of the pushing assembly pushes the oxidized debris accumulated on the lower side of the forging body 3 during rotation, and then the oxidized debris accumulated at the bottom of the forging is removed.

[0057] Example 3: Reference Figure 2-4 A forging device for large forgings, based on Example 2, further, the top of the annular shell 6 is rotatably connected with a rotating ring 602, the rotating ring 602 is connected to the moving frame 7, and the driving shaft 702 is rotatably connected to the rotating ring 602.

[0058] Specifically, a rotating ring 602 connected to the movable frame 7 is provided on the top of the annular shell 6, and the rotating ring 602 blocks the top of the annular shell 6 to prevent debris from falling in, and the driving shaft 702 rotates on the rotating ring 602, so that the movable frame 7 moves along the circumference of the annular shell 6 while driving the rotating ring 602 to move, thereby preventing the rotating ring 602 from hindering the circumferential movement of the movable frame 7.

[0059] Example 4: Reference Figure 5-8 , a forging equipment for large forgings, based on Example 3, further, a telescopic tube 11 is rotatably connected between the conical material guide seat 10 and the movable frame 7, and a second bevel gear 111 and a third bevel gear 112 are respectively provided at both ends of the telescopic tube 11, a first bevel gear 7021 meshing with the second bevel gear 111 is provided on the driving shaft 702, and a driven bevel gear 9011 meshing with the third bevel gear 112 is provided on the rotating rod 901.

[0060] Specifically, when the driving motor 701 is running, the output shaft of the driving motor 701 drives the driving shaft 702 to rotate, and the driving gear 703 at the bottom of the driving shaft 702 meshes with the gear ring 601 in the annular shell 6 to make the moving frame 7 rotate along the circumference of the annular shell 6, so that the walking assembly drives the pushing assembly to move in a circle, so that the pushing piece 902 of the pushing assembly moves the oxidized debris accumulated on the lower side of the forging body 3 during the rotation. When the driving shaft 702 rotates, the first bevel gear 7021 meshes with the second bevel gear 111 on the telescopic tube 11 for transmission, and the first bevel gear 7021 is meshed with the second bevel gear 111 on the telescopic tube 11 for transmission. The second bevel gear 111 drives the telescopic tube 11 and the third bevel gear 112 at the other end of the telescopic tube 11 to rotate, and the third bevel gear 112 is meshed with the driven bevel gear 9011 on the rotating rod 901 for transmission, so that the rotating rod 901 drives the shifting piece 902 to rotate. When the shifting piece 902 rotates, the oxidized debris accumulated on the lower side of the forging body 3 is shifted in a circular motion, so that the oxidized debris generates centrifugal force under the circumferential shifting, so that the oxidized debris shifted by the shifting piece 902 is away from the lower side of the forging body 3, thereby improving the removal effect of the oxidized debris on the forging table 2 during the forging upsetting.

[0061] Example 5: Reference Figure 1 , Fig. 9 , Fig.10 and Fig.11 A forging device for large forgings, based on Example 4, further, a receiving groove 12 is opened on the base 1, the forging table 2 is movably arranged in the receiving groove 12, and a third elastic telescopic rod 121 is arranged between the inner wall of the receiving groove 12 and the bottom of the forging table 2.

[0062] Furthermore, the forging table 2 includes a lower table 201 connected to the third elastic telescopic rod 121 and an upper table 202 rotatably connected to the lower table 201 through a pin shaft. A cavity 13 is opened in the lower table 201, and a fourth elastic telescopic rod 131 is movably arranged between the inner wall of the cavity 13 and the upper table 202. A sealing baffle 2021 is also arranged on the side of the upper table 202.

[0063] Furthermore, an annular groove 14 is opened on the lower platform 201, and the bottom wall of the annular groove 14 is set as a material guiding slope. A slider 141 is slidably connected in the annular groove 14, and a pull rope 142 is fixed on the slider 141. The end of the pull rope 142 away from the slider 141 passes through the movable frame 7 and is connected to the connecting plate 801.

[0064] Specifically, the staff uses a sling or a fork to place the forging body 3 on the forging table 2, and the forging body 3 presses down the upper table 202 which is tilted relative to the lower table 201, so that the raised end of the upper table 202 moves down, and the fourth elastic telescopic rod 131 is compressed, and the upper table 202 approaches the lower table 201 until the upper side of the upper table 202 is horizontally placed and fits with the lower table 201. When the upper table 202 can no longer rotate and move downward, the forging body 3 presses down the forging table 2 as a whole, so that the forging table 2 moves down into the receiving groove 12 of the base 1. The forging table 2 drives the slider 141 to move downward so that the pull rope 142 is no longer tight, and the first elastic telescopic rod 8 pushes the connecting plate 801 and the second elastic telescopic rod 802 connected to the connecting plate 801, the mounting seat 803 and the centrifugal part 9 to move toward the center of the forging table 2, so that the material-pickup piece 902 of the centrifugal part 9 abuts against the forging body 3, which is convenient for pushing away the oxidized debris accumulated at the bottom of the forging. As the pressing seat 501 continues to press down on the forging body 3, the upsetting work of the forging body 3 is completed, and the staff again uses the fork or the sling to lift the forging body 3 by itself. The forging table 2 is moved away, the forging table 2 is no longer subjected to force and moves upward as a whole under the elastic force of the third elastic telescopic rod 121. When the lower table body 201 moves upward, the slider 141 applies tension to the pull rope 142, so that the pull rope 142 pulls the connecting plate 801, and the connecting plate 801 moves closer to the moving frame 7. The first elastic telescopic rod 8 is squeezed, so that the connecting plate 801 drives the pushing assembly to move closer to the annular shell 6 and away from the forging table 2. The upper table body 202 of the forging table 2 is reset under the elastic force of the fourth elastic telescopic rod 131, and the upper table body 202 and the lower table body 2 are relocated. 01 is arranged inclined (the sealing baffle 2021 can block the gap between the upper table 202 and the lower table 201 to prevent foreign debris from falling into the cavity 13 and affecting the normal operation of the equipment), and the oxidized debris still remaining on the upper table 202 automatically slides down along the inclined upper table 202 at this time, completing the automatic cleaning work of the upper table 202, preparing for the subsequent upsetting work of other forgings, thereby improving the cleaning efficiency of the oxidized debris on the upper surface of the forging table 2, reducing the time consumed by manual operation, and improving the continuous forging efficiency of the equipment for forgings.

[0065] The present invention also discloses a forging method for a large forging, which is performed by using a forging device for a large forging, and comprises the following steps:

[0066] S1: The staff uses a sling or a fork to place the forging body 3 on the forging table 2, and the forging body 3 presses down the upper table 202 which is tilted relative to the lower table 201, so that the raised end of the upper table 202 moves downward, and the fourth elastic telescopic rod 131 is compressed, and the upper table 202 moves closer to the lower table 201 until the upper side of the upper table 202 is horizontally placed and fits with the lower table 201;

[0067] When the upper platform 202 cannot continue to rotate and move downward, the forging body 3 presses down the forging table 2 as a whole, so that the forging table 2 moves downward into the receiving groove 12 of the base 1, and the forging table 2 drives the slider 141 to move downward so that the pull rope 142 is no longer tight, and the first elastic telescopic rod 8 pushes the connecting plate 801 and the second elastic telescopic rod 802 connected to the connecting plate 801, the mounting seat 803 and the centrifugal part 9 to move toward the center of the forging table 2, so that the material-shifting piece 902 of the centrifugal part 9 abuts against the forging body 3;

[0068] S2: Then the hydraulic cylinder 5 is controlled to operate, and the piston rod of the hydraulic cylinder 5 drives the pressing seat 501 to move up and down reciprocatingly, and the pressing seat 501 performs upsetting work on the forging body 3 on the forging table 2. A large amount of oxidized debris generated during the upsetting of the forging body 3 falls on the forging table 2. As the upsetting of the forging body 3 continues, the coarsened cross section of the forging body 3 pushes the conical guide seat 10 on the top of the mounting seat 803, so that the conical guide seat 10 drives the mounting seat 803 and the centrifugal part 9 on the lower side to move away from the forging body 3. The second elastic telescopic rod 802 is squeezed, but the material-pickup sheet 902 of the centrifugal part 9 still maintains the abutment state with the forging body 3.

[0069] S3: Control the driving motor 701 to run, the output shaft of the driving motor 701 drives the driving shaft 702 to rotate, the driving gear 703 at the bottom of the driving shaft 702 meshes with the gear ring 601 in the annular shell 6 to drive, so that the moving frame 7 rotates along the circumference of the annular shell 6, and then the walking assembly drives the pushing assembly to move in a circle, so that the pushing piece 902 of the pushing assembly moves the oxidized debris accumulated on the lower side of the forging body 3 during the rotation;

[0070] When the driving shaft 702 rotates, the first bevel gear 7021 meshes with the second bevel gear 111 on the telescopic tube 11 for transmission, and the second bevel gear 111 drives the telescopic tube 11 and the third bevel gear 112 at the other end of the telescopic tube 11 to rotate, and the third bevel gear 112 meshes with the driven bevel gear 9011 on the rotating rod 901 for transmission, so that the rotating rod 901 drives the material-pickup piece 902 to rotate, and when the material-pickup piece 902 rotates, it circumferentially moves the oxidized debris accumulated on the lower side of the forging body 3, so that the oxidized debris generates centrifugal force under the circumferential movement, so that the oxidized debris moved by the material-pickup piece 902 is away from the lower side of the forging body 3;

[0071] S4: As the pressing seat 501 continues to press down the forging body 3, the upsetting work of the forging body 3 is completed, and the staff again uses the fork or the lifting device to remove the forging body 3 from the forging table 2;

[0072] S5: After the forging body 3 is moved away, the forging table 2 is no longer subjected to force and moves upward as a whole under the elastic force of the third elastic telescopic rod 121. When the lower table 201 moves upward, the slider 141 applies tension to the pull rope 142, so that the pull rope 142 pulls the connecting plate 801, and the connecting plate 801 approaches the moving frame 7. The first elastic telescopic rod 8 is squeezed, so that the connecting plate 801 drives the pushing assembly to approach the annular shell 6 and away from the forging table 2. The upper table 202 of the forging table 2 is reset under the elastic force of the fourth elastic telescopic rod 131. The upper table 202 and the lower table 201 are arranged at an angle. The oxidized debris still remaining on the upper table 202 automatically slides down along the inclined upper table 202 at this time, completing the automatic cleaning work of the upper table 202, and preparing for the subsequent upsetting work of other forgings.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A forging device for large forgings, comprising a base (1), characterized in that: Also includes: A forging table (2), the forging table (2) being arranged on the base (1) and used for supporting the forging body (3); A top plate (4), the top plate (4) being arranged on the upper side of the base (1), and a guide rod (101) being arranged between the top plate (4) and the base (1); A hydraulic cylinder (5), the hydraulic cylinder (5) being fixedly mounted on the bottom wall of the top plate (4), the piston rod of the hydraulic cylinder (5) being connected to a pressure seat (501) for upsetting the forging body (3), the pressure seat (501) being slidably connected to the outer side of the guide rod (101); A material pushing mechanism, the material pushing mechanism being connected to the guide rod (101) and being used to push away oxidized debris generated during upsetting of the forging body (3); The material pushing mechanism comprises an annular shell (6) fixedly connected to the guide rod (101), a traveling assembly arranged on the annular shell (6), and a material pushing assembly arranged on the traveling assembly; The walking assembly comprises a moving frame (7) slidably connected to the annular shell (6); a driving motor (701) is fixedly provided on the moving frame (7); an output shaft of the driving motor (701) passes through the moving frame (7) and is connected to a driving shaft (702); a driving gear (703) is provided at the end of the driving shaft (702); and a gear ring (601) meshing with the driving gear (703) is fixedly provided in the annular shell (6); The top of the annular shell (6) is rotatably connected to a rotating ring (602), the rotating ring (602) is connected to the moving frame (7), and the driving shaft (702) is rotatably connected to the rotating ring (602); The material pushing assembly comprises a first elastic telescopic rod (8) fixedly mounted on the moving frame (7); an end of the first elastic telescopic rod (8) away from the moving frame (7) is connected to a connecting plate (801); a second elastic telescopic rod (802) is fixedly mounted on the connecting plate (801); an end of the second elastic telescopic rod (802) away from the connecting plate (801) is connected to a mounting seat (803); a centrifugal portion (9) is arranged inside the mounting seat (803); and a conical material guiding seat (10) is arranged on the top of the mounting seat (803); The centrifugal part (9) comprises a rotating rod (901) rotatably connected to the mounting seat (803), the rotating rod (901) being provided with a plurality of circumferentially evenly distributed shifting pieces (902), the shifting pieces (902) movably abutting against the forging body (3); A telescopic tube (11) is rotatably connected between the conical material guide seat (10) and the movable frame (7); a second bevel gear (111) and a third bevel gear (112) are respectively provided at both ends of the telescopic tube (11); a first bevel gear (7021) meshing with the second bevel gear (111) is provided on the driving shaft (702); and a driven bevel gear (9011) meshing with the third bevel gear (112) is provided on the rotating rod (901); The base (1) is provided with a receiving groove (12), the forging table (2) is movably arranged in the receiving groove (12), and a third elastic telescopic rod (121) is arranged between the inner wall of the receiving groove (12) and the bottom of the forging table (2); The forging table (2) comprises a lower table body (201) connected to a third elastic telescopic rod (121) and an upper table body (202) rotatably connected to the lower table body (201) via a pin shaft, a cavity (13) is provided in the lower table body (201), a fourth elastic telescopic rod (131) is movably provided between the inner wall of the cavity (13) and the upper table body (202), and a sealing baffle (221) is also provided on the side of the upper table body (202); The lower platform (201) is provided with an annular groove (14), the bottom wall of the annular groove (14) being arranged as a material guiding inclined surface, a slider (141) being slidably connected in the annular groove (14), a pull rope (142) being fixedly arranged on the slider (141), and an end of the pull rope (142) away from the slider (141) passing through the movable frame (7) and being connected to the connecting plate (801).

2. A forging method for a large forging, which is performed by using the forging equipment for a large forging according to claim 1, characterized in that: The following steps are involved: S1: A worker uses a sling or a fork to place the forging body (3) on the forging table (2), and the forging body (3) presses down on the upper table (202) which is tilted relative to the lower table (201), so that the raised end of the upper table (202) moves downward, and the fourth elastic telescopic rod (131) is compressed, and the upper table (202) moves closer to the lower table (201) until the upper side of the upper table (202) is placed horizontally and fits with the lower table (201); When the upper platform (202) cannot continue to rotate and move downward, the forging body (3) presses the forging platform (2) downward as a whole, so that the forging platform (2) moves downward into the receiving groove (12) of the base (1), and the forging platform (2) drives the slider (141) to move downward so that the pull rope (142) is no longer tight, and the first elastic telescopic rod (8) pushes the connecting plate (801) and the second elastic telescopic rod (802) connected to the connecting plate (801), the mounting seat (803) and the centrifugal part (9) to move toward the center of the forging platform (2), so that the material-shifting piece (902) of the centrifugal part (9) abuts against the forging body (3); S2: Then, the hydraulic cylinder (5) is controlled to operate, and the piston rod of the hydraulic cylinder (5) drives the pressing seat (501) to move up and down reciprocatingly, and the pressing seat (501) performs upsetting work on the forging body (3) on the forging table (2). A large amount of oxidized debris generated during the upsetting of the forging body (3) falls on the forging table (2). As the upsetting of the forging body (3) continues, the coarsened cross section of the forging body (3) pushes the conical guide seat (10) on the top of the mounting seat (803), so that the conical guide seat (10) drives the mounting seat (803) and the centrifugal part (9) on the lower side to move to the side away from the forging body (3), and the second elastic telescopic rod (802) is squeezed, but the material-pickup sheet (902) of the centrifugal part (9) still always maintains abutment with the forging body (3); S3: Controlling the driving motor (701) to operate, the output shaft of the driving motor (701) drives the driving shaft (702) to rotate, the driving gear (703) at the bottom of the driving shaft (702) meshes with the gear ring (601) in the annular shell (6) to drive, so that the moving frame (7) rotates along the circumference of the annular shell (6), and then the walking assembly drives the pushing assembly to move in a circle, so that the pushing piece (902) of the pushing assembly pushes the oxidized debris accumulated on the lower side of the forging body (3) during the rotation; When the driving shaft (702) rotates, the first bevel gear (7021) meshes with the second bevel gear (111) on the telescopic tube (11) for transmission, the second bevel gear (111) drives the telescopic tube (11) and the third bevel gear (112) at the other end of the telescopic tube (11) to rotate, the third bevel gear (112) meshes with the driven bevel gear (9011) on the rotating rod (901) for transmission, so that the rotating rod (901) drives the material shifting piece (902) to rotate, and when the material shifting piece (902) rotates, the oxidized debris accumulated on the lower side of the forging body (3) is moved in a circular motion, so that the oxidized debris generates centrifugal force under the circumferential movement, so that the oxidized debris moved by the material shifting piece (902) is moved away from the lower side of the forging body (3); S4: As the pressing seat (501) continues to press down on the forging body (3), the upsetting work of the forging body (3) is completed, and the staff again uses the fork or the lifting device to remove the forging body (3) from the forging table (2); S5: After the forging body (3) is moved away, the forging table (2) is no longer subjected to force and moves upward as a whole under the elastic force of the third elastic telescopic rod (121). When the lower table (201) moves upward, the slider (141) applies a pulling force to the pull rope (142), so that the pull rope (142) pulls the connecting plate (801), and the connecting plate (801) moves closer to the moving frame (7). The first elastic telescopic rod (8) is squeezed, so that the connecting plate (801) drives the push assembly to move upward. The annular shell (6) approaches and moves away from the forging table (2), and the upper table (202) of the forging table (2) is reset under the elastic force of the fourth elastic telescopic rod (131). The upper table (202) and the lower table (201) are arranged to be inclined, and the oxidized debris still remaining on the upper table (202) automatically slides down along the inclined upper table (202), completing the automatic removal of the upper table (202) and preparing for the subsequent upsetting of other forgings.

Images