A forging forming device

Abstract

The application discloses a forging forming forging device, and relates to the technical field of forging equipment, which comprises a base, a lower die arranged on the base, an upper die arranged on the base in a lifting mode, and a cleaning mechanism, wherein the cleaning mechanism comprises a shielding assembly, a flushing assembly and a slag discharging assembly; the shielding assembly comprises a base cylinder, an upper shielding cylinder, a lower shielding cylinder and a displacement driving unit; the flushing assembly comprises a bearing arm, a connecting sleeve and two flushing units; and the slag discharging assembly comprises an upper scraper, a lower scraper and an annular slag accumulation groove arranged around the lower die cavity. The shielding assembly is arranged, the flushing structure capable of rotating and flushing the upper die and the lower die is arranged in the shielding assembly, the flushing structure is matched with the scraping and slag discharging structure, the spraying liquid and the residual slag are prevented from flying outward and being retained again, the cleaning completeness of the upper die, the lower die and the cleaning area is improved, and the stability of the die cleaning operation in the continuous forging process is improved.

Description

Technical Field

[0001] This application relates to the field of forging equipment technology, and in particular to a forging apparatus for forming forging parts. Background Technology

[0002] During forging, the metal billet is pressed and shaped between the upper and lower dies. Affected by factors such as high-temperature oxidation, the shedding of oxide scale from the billet surface, and residues on the die surface, oxide scale, metal debris, and other residues easily accumulate in the cavities of the upper and lower dies, as well as around the lower die, during continuous forging. If these residues are not removed in time, they may be pressed back into the surface of the forging or remain in localized areas of the cavity during subsequent forging processes, thus affecting the surface quality of the forging. Therefore, it is usually necessary to clean the working area of ​​the die between adjacent forging operations.

[0003] In existing mold cleaning methods, a common approach is to manually remove the forging and then use a spraying tool to spray liquid or a gas-liquid mixture onto the upper and lower molds to remove residue adhering to the cavity surface. However, the working space between the upper and lower molds is relatively open, and during the rinsing process, the sprayed liquid and the washed-off debris easily scatter, increasing pollution around the equipment. Furthermore, the washed-off residue may remain around the lower mold, making centralized collection and removal difficult. Simultaneously, residue splashed onto shielding structures or adjacent components during cleaning may gradually accumulate, requiring additional cleaning. Therefore, existing cleaning methods often fail to simultaneously address mold cavity rinsing, splash control, and centralized removal of washed-off residue. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this application is to provide a forging device for forming forging parts. By forming an expandable shielding cleaning space between the upper and lower dies, and setting a flushing structure in the cleaning space that can rotate and flush the upper and lower dies respectively, and at the same time cooperating with a scraping and slag discharge structure, the flushed residue can be restricted, collected and discharged to a predetermined position, thereby reducing the outward scattering and re-retention of spray liquid and residue, improving the cleaning integrity of the upper and lower dies and the cleaning area, and improving the stability of die cleaning operation during continuous forging.

[0006] To achieve the above objectives, this application provides a forging device for forming forging parts, including a base, a lower die disposed on the base, and an upper die that is lifted and lowered on the base. It also includes a cleaning mechanism, which comprises a shielding assembly, a flushing assembly, and a slag removal assembly. The shielding assembly includes a base cylinder, an upper shielding cylinder, a lower shielding cylinder, and a displacement driving unit. The upper and lower shielding cylinders are slidably disposed at the upper and lower ends of the base cylinder along its axial direction. The displacement driving unit drives the base cylinder to shift between a cleaning position and an avoidance position. The base cylinder is equipped with a telescopic unit for driving the upper and lower shielding cylinders to move in opposite directions. The flushing assembly includes a bearing arm, a connecting sleeve, and two flushing units. One end of the bearing arm is fixed to... On the base cylinder, the other end extends toward the axis of the base cylinder and supports the connecting sleeve. The two flushing units are rotatably and sealed to the upper and lower ends of the connecting sleeve, respectively. The bearing arm is provided with a liquid supply passage connecting the external liquid supply device and the connecting sleeve, as well as a transmission unit for transmitting the rotational power outside the base cylinder to the two flushing units. The slag discharge assembly includes an upper scraper, a lower scraper, and an annular slag accumulation groove arranged around the lower mold cavity. The upper scraper and the lower scraper can rotate around the axis of the base cylinder. The upper scraper is used to scrape the upper shield cylinder and the inner wall of the base cylinder located on the upper side of the bearing arm. The lower scraper is used to scrape the lower shield cylinder and the inner wall of the base cylinder located on the lower side of the bearing arm. The flushing assembly is provided with an auxiliary spraying part toward the area between the upper scraper and the lower scraper.

[0007] In addition, the forging apparatus for forming a forging part according to the above-mentioned application may also have the following additional technical features: In one embodiment of this application, a transmission cylinder is rotatably installed inside the bearing arm, and a liquid supply pipe is rotatably installed inside the transmission cylinder. The liquid supply passage is the inner cavity of the liquid supply pipe. One end of the liquid supply pipe is connected to an external liquid supply device, and the other end of the liquid supply pipe is connected to the inner cavity of the connecting sleeve. A mounting base is provided at one end of the bearing arm located inside the base cylinder, and the transmission unit is disposed in the mounting base.

[0008] In one embodiment of this application, each of the flushing units includes a hollow rotary shaft, a plurality of spray rods, and a plurality of nozzles. Two hollow rotary shafts are rotatably and sealingly connected to the upper and lower ends of a connecting sleeve, respectively. The spray rods are disposed at the end of the corresponding hollow rotary shaft away from the connecting sleeve and communicate with the inner cavity of the hollow rotary shaft. The plurality of nozzles are spaced apart along the length of the spray rods and communicate with the inner cavity of the hollow rotary shafts through the spray rods. At least some of the nozzles are disposed facing the corresponding cavity, and at least some of the nozzles are disposed inclined toward the inner wall of the corresponding cavity.

[0009] In one embodiment of this application, the connecting sleeve is disposed in the mounting base, and the upper and lower ends of the mounting base are respectively provided with bearings for rotatably supporting the corresponding hollow rotary shafts. The connecting sleeve is fixed in the mounting base and is coaxial with the base cylinder and the two hollow rotary shafts.

[0010] In one embodiment of this application, one end of the transmission cylinder is connected to a first rotary drive member disposed outside the base cylinder, and the other end extends into the mounting base; the transmission unit includes a first driving bevel gear fixed to the end of the transmission cylinder in the mounting base and two first driven bevel gears respectively fixed on the two hollow rotary shafts, the first driving bevel gear and the two first driven bevel gears meshing to synchronously drive the two hollow rotary shafts to rotate.

[0011] In one embodiment of this application, an upper connecting arm and a lower connecting arm are fixed on the outer walls of two hollow rotary shafts inside the base cylinder. The upper scraper is connected to the upper connecting arm, and the lower scraper is connected to the lower connecting arm. When the two hollow rotary shafts rotate, the upper scraper and the lower scraper respectively form independent circumferential scraping areas on the upper and lower sides of the bearing arm.

[0012] In one embodiment of this application, both the upper scraper and the lower scraper include a fixed scraping section and a telescopic scraping section that slides along the axial direction of the fixed scraping section. The upper shield and the lower shield are respectively provided with annular guide grooves, and the ends of the two telescopic scraping sections are respectively slidably engaged with the corresponding annular guide grooves. The bearing arm and the area connected to the base cylinder are located between the scraping range of the upper scraper and the lower scraper. The auxiliary spraying part includes a plurality of auxiliary nozzles arranged toward this area to rinse the area that the upper scraper and the lower scraper cannot directly scrape.

[0013] In one embodiment of this application, the annular slag collection trough is provided with a slag discharge notch, and the lower end of the lower scraper is provided with a slag pushing part that extends at least partially into the annular slag collection trough, so that when the lower scraper rotates, it pushes the residue in the annular slag collection trough circumferentially to the slag discharge notch.

[0014] In one embodiment of this application, the slag pushing part is disposed at the lower end of the telescopic scraper section of the lower scraper, and the slag pushing part is an elastic sheet; a slag discharge ramp is provided near the slag discharge gap of the annular slag accumulation trough so that the residue falling into the annular slag accumulation trough is discharged from the slag discharge gap under the combined action of the circumferential pushing of the slag pushing part and the spray liquid.

[0015] In one embodiment of this application, the displacement driving unit includes a guide seat disposed on one side of the base, a movable seat slidably mounted on the guide seat, and a linear driving member for driving the movable seat to move. The base cylinder is fixedly disposed on the movable seat. The telescopic unit includes a bidirectional lead screw rotatably disposed on the base cylinder and a second rotary driving member for driving the bidirectional lead screw to rotate. A first connecting member and a second connecting member are respectively threaded onto two threaded segments with opposite directions on the bidirectional lead screw. The first connecting member and the second connecting member are respectively connected to the upper cover cylinder and the lower cover cylinder.

[0016] Compared with the prior art, this application has at least the following beneficial effects: (1) By setting up a shielding assembly, a flushing assembly and a slag discharge assembly, this application enables the base cylinder to enter between the upper and lower molds under the drive of the displacement drive unit, and uses the telescopic unit to drive the upper shielding cylinder and the lower shielding cylinder to move in opposite directions along the axial direction of the base cylinder, thereby forming a relatively closed cleaning space corresponding to the upper and lower molds during the cleaning process. This helps to limit the scattering range of the spray liquid and the washed-off residue, and prevents the residue from entering the lifting mechanism of the upper mold during the cleaning process.

[0017] (2) The present application uses a bearing arm to fix and support the connecting sleeve, and sets rotatable flushing units at the upper and lower ends of the connecting sleeve respectively, so that the two flushing units can rotate and flush the upper mold and the lower mold respectively. With the help of nozzles arranged at intervals along the spray bar and at least partially inclined towards the inner wall of the cavity, the spraying range can be expanded and the inner wall of the cavity can be flushed in multiple directions, thereby improving the removal effect of residual oxide scale and forging residue in the mold cavity.

[0018] (3) The upper scraper and the lower scraper of this application rotate with the corresponding hollow rotary shaft to perform circumferential scraping on the upper shielding cylinder, the lower shielding cylinder and the inner wall of the base cylinder, and to rinse the area near the bearing arm that is inconvenient to be directly acted on by the scraper through the auxiliary spraying part, thereby reducing the accumulation of residue inside the shielding assembly and improving the continuity and stability of the forging die cleaning process.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a perspective view of the overall structure of a forging apparatus for forming a forging part according to an embodiment of this application; Figure 2 This is a perspective view of an upper die, a lower die, and an annular slag groove in a forging apparatus for forming a forging part according to an embodiment of this application; Figure 3 This is a perspective view of a shielding assembly in a forging apparatus for forming a forging part according to an embodiment of this application; Figure 4 This is a top-view perspective view of a shielding assembly and a flushing unit in a forging forming apparatus according to an embodiment of this application. Figure 5 This is a schematic diagram showing the installation position of the slag pusher in a forging apparatus for forming a forging part according to an embodiment of this application; Figure 6 This is a perspective view of a flushing assembly and a slag removal assembly in a forging apparatus for forming a forging part according to an embodiment of this application; Figure 7 This is a schematic diagram of the transmission unit in a forging apparatus for forming a forging part according to an embodiment of this application, viewed from a cutaway perspective. As shown in the figure: 1. Base; 2. Lower mold; 3. Upper mold; 4. Base cylinder; 5. Upper shielding cylinder; 6. Lower shielding cylinder; 7. Displacement drive unit; 8. Telescopic unit; 9. Bearing arm; 10. Connecting sleeve; 11. Flushing unit; 12. Auxiliary pipe; 13. Upper scraper; 14. Lower scraper; 15. Annular slag accumulation trough; 16. Auxiliary spraying section; 17. Transmission cylinder; 18. Liquid supply pipe; 19. Mounting base; 20. Hollow rotary shaft; 21. Spray bar; 22. Nozzle; 23. First rotary drive component; 24. First driving bevel gear; 25. First driven bevel gear; 26. Upper connecting arm; 27. Lower connecting arm; 28. Fixed scraper section; 29. ​​Telescopic scraper section; 30. Annular guide groove; 31. Auxiliary nozzle; 32. Slag discharge notch; 33. Slag pushing part; 34. Guide seat; 35. Moving seat; 36. Linear drive component; 37. Bidirectional lead screw; 38. First connecting component; 39. Second connecting component; 40. Second rotary drive component. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0022] The following description, in conjunction with the accompanying drawings, describes a forging apparatus for forming a forging part according to an embodiment of this application.

[0023] like Figures 1 to 7As shown in the embodiment of this application, a forging apparatus for forming a forging part can be used for die forging metal billets with rotating structures such as flanges, and can clean the working area of ​​the die between two adjacent forging operations. The forging apparatus of this application includes a base 1, a lower die 2, an upper die 3, and a cleaning mechanism. The lower die 2 is detachably fixed on the base 1, and the upper die 3 is vertically and vertically positioned above the base 1 via a lifting mechanism. The upper die 3 can descend towards the lower die 2 during the forging process to cooperate with the lower die 2 to complete the forging, and moves upward after one forging operation, which is the same principle as existing hot die forging equipment. The cleaning mechanism is located on one side of the base 1, outside the upper die 3 and lower die 2 during normal forging to avoid interfering with the forging action; after one forging operation is completed and the forging part is removed, the cleaning mechanism can enter between the upper die 3 and lower die 2 to centrally process the upper die 3, lower die 2, and residue generated during the cleaning process, and also cool and lubricate the cavities of the upper die 3 and lower die 2.

[0024] In this embodiment, the cleaning mechanism includes a shielding assembly, a flushing assembly, and a slag removal assembly. The shielding assembly primarily limits the dispersion of the sprayed liquid and washed-off residue during the cleaning process; the flushing assembly sprays and flushes the upper mold 3 and lower mold 2 respectively; and the slag removal assembly cleans and removes residue adhering to the inner wall of the shielding assembly and accumulating around the lower mold 2 during the cleaning process. Thus, mold flushing, splash limitation, and subsequent treatment of washed-off residue can be completed continuously in the same cleaning process.

[0025] As one possible implementation method, such as Figure 1 and Figure 3 As shown, the shielding assembly includes a base cylinder 4, an upper shielding cylinder 5, a lower shielding cylinder 6, a displacement driving unit 7, and a telescopic unit 8. The base cylinder 4 forms the main support structure of the cleaning mechanism. The upper shielding cylinder 5 and the lower shielding cylinder 6 are respectively located at the upper and lower ends of the base cylinder 4 and can slide up and down relative to the base cylinder 4 along its axial direction. The displacement driving unit 7 is connected to the base cylinder 4 and is used to move the entire base cylinder 4 between the cleaning position and the avoidance position to match the forging production rhythm of the upper die 3 and the lower die 2. The telescopic unit 8 is located on the base cylinder 4 and is used to drive the upper shielding cylinder 5 and the lower shielding cylinder 6 to move in opposite directions, thus avoiding interference with the components on the upper die 3 or the lower die 2. The cleaning position is when the upper mold 3 and the lower mold 2 are separated to a specific position, and the base cylinder 4 moves to a position coaxial with the cavities of the upper mold 3 and the lower mold 2. When the base cylinder 4 is in this position, the upper shielding cylinder 5 and the lower shielding cylinder 6 move together to shield the upper mold 3 and the lower mold 2 respectively. The clearance position is when the base cylinder 4 is moved to one side of the lower mold 2 and the upper mold 3 so that the cleaning mechanism itself will not obstruct the closing position of the upper mold 3 and the lower mold 2.

[0026] In this embodiment, the displacement driving unit 7 includes a guide seat 34, a movable seat 35, and a linear drive component 36. The guide seat 34 is disposed on one side of the base 1, and a guide rail is fixed on the guide seat 34. The movable seat 35 is slidably mounted on the guide rail on the guide seat 34, and the base cylinder 4 is fixedly disposed on the movable seat 35. The linear drive component 36 is used to drive the movable seat 35 to move along the guide seat 34. The linear drive component 36 can be a cylinder, an electric push rod, or other linear drive device. When the device is in the forging state, the movable seat 35 is in a clearance position away from the upper die 3 and the lower die 2, so that the base cylinder 4 is completely removed from the die working area. When die cleaning is required, the upper die 3 is raised first, forming sufficient space between the upper die 3 and the lower die 2. Then, the linear drive component 36 drives the movable seat 35 to move along the guide seat 34, so that the base cylinder 4 moves from the clearance position into the cleaning position between the upper die 3 and the lower die 2. By adopting the above-mentioned movement method, the cleaning mechanism does not need to occupy the working space between the dies for a long time, thus taking into account both forging and die cleaning working states.

[0027] like Figure 3 As shown, in this embodiment, the telescopic unit 8 includes a bidirectional lead screw 37, a first connecting member 38, a second connecting member 39, and a second rotary drive member 40 for driving the bidirectional lead screw 37 to rotate. The bidirectional lead screw 37 is rotatably mounted on the side wall of the base cylinder 4 via two bearing seats. The bidirectional lead screw 37 has two threaded sections with opposite directions of rotation. The first connecting member 38 and the second connecting member 39 are respectively threaded onto the two threaded sections and are fixedly connected to the upper shielding cylinder 5 and the lower shielding cylinder 6, respectively. Since the upper shielding cylinder 5 and the lower shielding cylinder 6 are radially restricted by the base cylinder 4, they will not rotate around the bidirectional lead screw 37. Therefore, when the bidirectional lead screw 37 rotates, the first connecting member 38 and the second connecting member 39 will move in opposite directions along the axial direction of the bidirectional lead screw 37, thereby causing the upper shielding cylinder 5 and the lower shielding cylinder 6 to extend in opposite directions or retract in opposite directions simultaneously. To further improve the stability of the lifting and lowering of the upper shielding cylinder 5 and the lower shielding cylinder 6, telescopic units 8 can be symmetrically arranged on both sides of the base cylinder 4.

[0028] Once the base cylinder 4 enters the cleaning position, the telescopic unit 8 drives the upper shielding cylinder 5 to extend upwards and approach the upper mold 3, while simultaneously driving the lower shielding cylinder 6 to extend downwards and approach the lower mold 2. This causes the base cylinder 4, upper shielding cylinder 5, and lower shielding cylinder 6 to collectively surround the upper mold 3 and the lower mold 2. This creates a relatively concentrated cleaning area before the rinsing assembly begins spraying, preventing the sprayed liquid and oxide scale and metal debris falling from the cavity surface from directly scattering to the outside of the equipment. After cleaning is complete, the bidirectional lead screw 37 rotates in the opposite direction, causing the upper shielding cylinder 5 and lower shielding cylinder 6 to retract towards the base cylinder 4, thereby reducing the axial dimension of the cleaning mechanism and facilitating its overall lateral movement and exit between the upper mold 3 and the lower mold 2.

[0029] The flushing assembly is located inside the shielding assembly. In one possible implementation, the flushing assembly includes a support arm 9, a connecting sleeve 10, and two flushing units 11. The support arm 9 is fixedly inserted into the base cylinder 4, with one end extending towards the axis of the base cylinder 4. The connecting sleeve 10 is supported by the end of the support arm 9 located inside the base cylinder 4. The two flushing units 11 are rotatably and sealingly connected to the upper and lower ends of the connecting sleeve 10, respectively, with the upper flushing unit 11 corresponding to the upper mold 3 and the lower flushing unit 11 corresponding to the lower mold 2. The support arm 9 is also equipped with a liquid supply passage and a transmission unit. The liquid supply passage is used to transport the spray liquid provided by an external liquid supply device to the two flushing units 11, and the transmission unit is used to transmit the rotational power located outside the base cylinder 4 to the two flushing units 11.

[0030] To achieve coordination between liquid supply and rotary drive, a transmission cylinder 17 and a liquid supply pipe 18 are installed inside the support arm 9. The transmission cylinder 17 is rotatably mounted inside the support arm 9 via bearings, and the liquid supply pipe 18 is rotatably mounted inside the transmission cylinder 17 via bearings. The liquid supply pipe 18 in the transmission cylinder 17 is a metal pipe. The liquid supply passage is formed by the inner cavity of the liquid supply pipe 18. One end of the liquid supply pipe 18 is connected to an external liquid supply device, and the other end is connected to the inner cavity of the connecting sleeve 10. By placing the liquid supply pipe 18 inside the transmission cylinder 17, relatively independent liquid delivery paths and mechanical power transmission paths can be formed within the limited internal space of the support arm 9. This allows the transmission cylinder 17 to undertake the function of rotary power transmission, while the spray liquid is delivered to the connecting sleeve 10 along the liquid supply pipe 18, reducing the structural interference between the two functions.

[0031] A mounting base 19 is fixedly connected to one end of the bearing arm 9 facing the axis of the base cylinder 4. A connecting sleeve 10 is fixedly mounted on a mounting plate inside the mounting base 19, and the transmission unit is also located inside the mounting base 19. Bearings are respectively provided at the upper and lower ends of the mounting base 19 for rotatably supporting the corresponding hollow rotary shafts 20. The connecting sleeve 10 is coaxially arranged with the two hollow rotary shafts 20, allowing the two hollow rotary shafts 20 to rotate relative to the connecting sleeve 10. At the same time, the connecting sleeve 10 and the two hollow rotary shafts 20 are sealed together by a rotary seal to maintain the liquid communication between the connecting sleeve 10 and the hollow rotary shafts 20 and prevent leakage.

[0032] like Figure 7As shown, each flushing unit 11 includes a hollow rotating shaft 20, multiple spray rods 21, and multiple nozzles 22. Specifically, each flushing unit 11 may include three spray rods 21, and each spray rod 21 may be equipped with four nozzles 22, the specific number of which can be adjusted according to actual needs. Two hollow rotating shafts 20 are rotatably and sealingly connected to the upper and lower ends of the connecting sleeve 10, respectively, and the inner cavity of the hollow rotating shaft 20 is in communication with the inner cavity of the connecting sleeve 10. The spray rods 21 are located at the end of the corresponding hollow rotating shaft 20 away from the connecting sleeve 10 and are in communication with the inner cavity of the hollow rotating shaft 20. The multiple nozzles 22 are spaced apart along the length of the spray rod 21. Therefore, the spray liquid output from the external liquid supply device can pass through the liquid supply pipe 18, the connecting sleeve 10, the hollow rotating shaft 20, and the spray rods 21 in sequence, and finally be sprayed out by each nozzle 22.

[0033] The nozzles 22 are configured with different spraying directions according to their corresponding cleaning positions. At least some nozzles 22 are set towards the corresponding cavity to directly flush the bottom or main working surface of the cavity; other nozzles 22 are set at an angle towards the inner wall of the corresponding cavity so that the sprayed liquid can act on the side wall of the cavity at a certain angle. Compared with the method of spraying in only one direction, the above-mentioned nozzle arrangement allows the sprayed liquid to cover the bottom and side areas of the cavity at the same time.

[0034] Furthermore, to ensure the spray position continuously changes during the cleaning process, one end of the transmission cylinder 17 is connected to the first rotary drive component 23 located outside the base cylinder 4, and the other end extends into the mounting base 19. Both the first rotary drive component 23 and the second rotary drive component 40 include a motor and a gear set, with the motor transmitting rotational power to the corresponding component via the gear set. The transmission unit includes a first driving bevel gear 24 and two first driven bevel gears 25. The first driving bevel gear 24 is fixed to the end of the transmission cylinder 17 located within the mounting base 19, and the two first driven bevel gears 25 are respectively fixed to two hollow rotary shafts 20. The first driving bevel gear 24 simultaneously meshes with both first driven bevel gears 25.

[0035] During cleaning, the first rotary drive 23 drives the transmission cylinder 17 to rotate, which in turn drives the first active bevel gear 24 to rotate. The first active bevel gear 24 further drives the upper and lower hollow rotary shafts 20 to rotate synchronously through two first driven bevel gears 25. When the hollow rotary shafts 20 rotate, the spray rods 21 at their ends rotate around the axis of the base cylinder 4, and the spraying area of ​​each nozzle 22 changes from a fixed position to a continuously varying circumferential scouring area. In this way, the upper scouring unit 11 can perform rotary scouring on the cavity of the upper mold 3, and the lower scouring unit 11 can perform rotary scouring on the cavity of the lower mold 2. This reduces the number of additional drive components while allowing the upper and lower molds to be continuously sprayed during the same cleaning process.

[0036] In one alternative embodiment, the liquid supply device may provide water, mold cleaning fluid, or other liquid media that can meet the mold cleaning requirements, depending on the specific forging process. This application does not make any specific limitations in this regard.

[0037] The slag removal assembly works in conjunction with the flushing assembly. The slag removal assembly includes an upper scraper 13, a lower scraper 14, and an annular slag accumulation trough 15. The annular slag accumulation trough 15 is arranged around the cavity of the lower mold 2 and is used to receive the residue and spray liquid flushed off from the cavity of the lower mold 2 and the surrounding area. The upper scraper 13 and the lower scraper 14 are respectively rotatable around the axis of the base cylinder 4. The upper scraper 13 is mainly used to scrape the inner wall of the upper shielding cylinder 5 and the base cylinder 4 located on the upper side of the support arm 9, while the lower scraper 14 is mainly used to scrape the inner wall of the lower shielding cylinder 6 and the base cylinder 4 located on the lower side of the support arm 9.

[0038] Specifically, an upper connecting arm 26 and a lower connecting arm 27 are fixed to the outer walls of the two hollow rotary shafts 20, respectively. The upper scraper 13 is connected to the upper connecting arm 26, and the lower scraper 14 is connected to the lower connecting arm 27. In this way, in addition to driving the spray bar 21 to rotate, the hollow rotary shafts 20 can also drive the corresponding scrapers to move circumferentially. When the two hollow rotary shafts 20 rotate, the upper scraper 13 and the lower scraper 14 form independent circumferential scraping areas on the upper and lower sides of the supporting arm 9, respectively. This structure allows the flushing action and the cleaning action of the inner wall of the shield to share the rotational motion of the hollow rotary shafts 20.

[0039] During the flushing process, some of the residue flushed off the mold surface may adhere to the inner wall of the upper shielding cylinder 5, lower shielding cylinder 6, or base cylinder 4 along with the spray liquid. After the upper scraper 13 and lower scraper 14 rotate synchronously with the hollow rotary shaft 20, they can continuously scrape the above-mentioned attached residue, causing it to fall downwards, without the need for manual cleaning of the inside of the shielding assembly after each cleaning cycle.

[0040] Considering that the upper shielding cylinder 5 and the lower shielding cylinder 6 need to extend and retract along the axial direction of the base cylinder 4 during the cleaning process, both the upper scraper 13 and the lower scraper 14 include a fixed scraping section 28 and a telescopic scraping section 29, with the telescopic scraping section 29 sliding along the axial direction of the fixed scraping section 28. The upper shielding cylinder 5 and the lower shielding cylinder 6 are each provided with an annular guide groove 30, and the ends of the two telescopic scraping sections 29 slide in cooperation with the corresponding annular guide grooves 30. When the upper shielding cylinder 5 and the lower shielding cylinder 6 extend relative to the base cylinder 4, the corresponding annular guide groove 30 undergoes axial displacement, causing the telescopic scraping section 29 to extend relative to the fixed scraping section 28; when the upper shielding cylinder 5 and the lower shielding cylinder 6 retract, the telescopic scraping section 29 retracts relative to the fixed scraping section 28. Therefore, the effective scraping length of the upper scraper 13 and the lower scraper 14 can automatically change with the position of the corresponding shielding cylinder, allowing the scraper to cover the corresponding inner wall even when the shielding cylinder is in different extended positions, without the need for a separate axial drive mechanism for the scraper. Meanwhile, the end of the telescopic scraper section 29 slides along the annular guide groove 30, allowing the scraper to rotate circumferentially with the hollow rotating shaft 20 and adapt to changes in the axial position of the shielding cylinder. Considering that the inner walls of the base cylinder 4 and the upper shielding cylinder 5 and lower shielding cylinder 6 are not completely flush, brushes are fixed on both the fixed scraper section 28 and the telescopic scraper section 29 to compensate for the difference in contact distance.

[0041] Since the support arm 9 needs to extend from the inner wall of the base cylinder 4 towards the axis of the base cylinder 4, the area where the support arm 9 and its connection with the base cylinder 4 are located between the scraping range of the upper scraper 13 and the lower scraper 14. This area is inconvenient for the upper scraper 13 or the lower scraper 14 to pass directly through. To reduce the formation of residue accumulation areas in this area, the flushing assembly is also equipped with an auxiliary spray section 16. The auxiliary spray section 16 includes an auxiliary pipe 12 and multiple auxiliary nozzles 31. The auxiliary pipe 12 is annular and communicates with the hollow rotating shaft 20 above it. Each auxiliary nozzle 31 is connected to the auxiliary pipe 12 and is positioned towards the support arm 9 and the area where the support arm 9 connects to the base cylinder 4. During the cleaning process, the auxiliary nozzles 31 use spray liquid to flush the area, washing away the residue that cannot be directly scraped by the upper scraper 13 or the lower scraper 14, thus forming a complementary internal cleaning method with the upper scraper 13 and the lower scraper 14.

[0042] After flushing the lower mold 2 and scraping the inner walls of the lower shielding cylinder 6 and the base cylinder 4, most of the residue falls downwards into the annular slag accumulation trough 15 under the action of gravity and spray liquid. To prevent the residue from passively accumulating only inside the annular slag accumulation trough 15, a slag discharge notch 32 is provided in the annular slag accumulation trough 15, and a slag pushing part 33 is provided at the lower end of the lower scraper 14, with the slag pushing part 33 extending at least partially into the annular slag accumulation trough 15. Thus, when the lower scraper 14 rotates around the axis of the base cylinder 4, the slag pushing part 33 can move synchronously along the circumference of the annular slag accumulation trough 15, gradually pushing the residue in the trough towards the slag discharge notch 32.

[0043] In this embodiment, the slag pusher 33 is disposed at the lower end of the telescopic scraper section 29 of the lower scraper 14, and the slag pusher 33 adopts an elastic sheet. The use of an elastic sheet enables the slag pusher 33 to have a certain deformation capacity while maintaining a certain contact or extension relationship with the annular slag accumulation trough 15. When there are differences in particle size or local slag accumulation, the slag pusher 33 can undergo adaptive deformation, thereby reducing the possibility of rigid jamming.

[0044] The annular slag collection trough 15 is also equipped with a slag discharge ramp near the slag discharge opening 32. After the slag pusher 33 pushes the residue to the vicinity of the slag discharge opening 32 in the circumferential direction, the residue can be discharged outward along the slag discharge ramp under the pushing action of the slag pusher 33 and the action of the spray liquid flow, and discharged into the collection bucket next to the base 1. In this way, the annular slag collection trough 15 is no longer just a temporary area for receiving residue, but forms a continuous residue collection and active discharge path in conjunction with the lower scraper 14, the slag pusher 33, the slag discharge opening 32 and the slag discharge ramp.

[0045] In a complete mold cleaning process, after the upper mold 3 completes forging, it rises first and removes the forging from the lower mold 2. Subsequently, the displacement drive unit 7 drives the base cylinder 4 from the clearance position to enter between the upper mold 3 and the lower mold 2, and the telescopic unit 8 drives the upper shielding cylinder 5 and the lower shielding cylinder 6 to extend upward and downward respectively, so that the cleaning area is blocked by the shielding assembly. After the external liquid supply equipment starts supplying liquid, the spray liquid is sprayed out from the nozzle 22 through the liquid supply pipe 18, the connecting sleeve 10, the hollow rotary shaft 20 and the spray rod 21 in sequence. At the same time, the first rotation drive component drives the two hollow rotary shafts 20 to rotate through the transmission cylinder 17, the first active bevel gear 24 and the first driven bevel gear 25, so that the upper and lower flushing units 11 respectively perform rotation flushing on the upper mold 3 and the lower mold 2.

[0046] While the hollow rotary shaft 20 rotates, the upper scraper 13 and the lower scraper 14 respectively scrape the inner wall of the shielding assembly circumferentially, while the auxiliary nozzle 31 washes the non-scraped area near the bearing arm 9. The residue detached from the upper mold 3, the lower mold 2, and the inside of the shielding assembly gradually gathers downward and enters the annular slag accumulation trough 15. When the lower scraper 14 rotates, its lower end pusher 33 moves synchronously along the annular slag accumulation trough 15, continuously pushing the residue towards the slag discharge opening 32, and is discharged through the slag discharge ramp with the help of the spray liquid.

[0047] After the cleaning reaches the predetermined level, the liquid supply and flushing unit 11 stops rotating. The telescopic unit 8 drives the upper shielding cylinder 5 and the lower shielding cylinder 6 to retract towards the base cylinder 4. Subsequently, the displacement drive unit 7 drives the entire base cylinder 4 to exit between the upper die 3 and the lower die 2 and return to the avoidance position. A forging space that is not interfered with by the cleaning mechanism is re-established between the upper die 3 and the lower die 2, thus enabling the next billet placement and forging process.

[0048] In summary, this application, through the cooperation of the shielding assembly, the flushing assembly, and the slag removal assembly, forms a cleaning space between the upper mold 3 and the lower mold 2 that can expand and retract during the cleaning process. Two rotatable flushing units 11 continuously flush the upper mold 3 and the lower mold 2, which helps to expand the range of action of the sprayed liquid on different locations within the cavity. The upper scraper 13, the lower scraper 14, and the auxiliary spraying unit 16 can simultaneously clean the interior of the shielding assembly during the mold flushing process, reducing the re-accumulation of flushed residue within the cleaning mechanism. Simultaneously, the lower scraper 14, with the help of the slag pushing part 33, actively pushes the residue collected in the annular slag accumulation groove 15 to the slag removal notch 32, and, in conjunction with the sprayed liquid and the slag removal ramp, achieves centralized discharge. Thus, the mold surface flushing, splash restriction, internal shielding cleaning, and residue collection and discharge form a continuous and coordinated cleaning process, reducing the re-retention of residue in the mold and cleaning area, and improving the integrity and stability of mold cleaning during continuous forging.

[0049] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A forging apparatus for forming forging parts, comprising a base (1), a lower die (2) disposed on the base (1), and an upper die (3) disposed on the base (1), characterized in that, It also includes a cleaning mechanism, which comprises a shielding assembly, a flushing assembly, and a slag discharge assembly; The shielding assembly includes a base cylinder (4), an upper shielding cylinder (5), a lower shielding cylinder (6), and a displacement driving unit (7). The upper shielding cylinder (5) and the lower shielding cylinder (6) are slidably disposed at the upper and lower ends of the base cylinder (4) along the axial direction of the base cylinder (4). The displacement driving unit (7) is used to drive the base cylinder (4) to shift between the cleaning position and the avoidance position. The base cylinder (4) is provided with a telescopic unit (8) for driving the upper shielding cylinder (5) and the lower shielding cylinder (6) to move towards or away from each other. The flushing assembly includes a support arm (9), a connecting sleeve (10), and two flushing units (11). One end of the support arm (9) is fixed to the base cylinder (4), and the other end extends toward the axis of the base cylinder (4) and supports the connecting sleeve (10). The two flushing units (11) are rotatably and sealed to the upper and lower ends of the connecting sleeve (10). The support arm (9) is provided with a liquid supply passage connecting the external liquid supply device and the connecting sleeve (10) and a transmission unit for transmitting the rotational power outside the base cylinder (4) to the two flushing units (11). The slag discharge assembly includes an upper scraper (13), a lower scraper (14), and an annular slag accumulation groove (15) arranged around the cavity of the lower mold (2). The upper scraper (13) and the lower scraper (14) can rotate around the axis of the base cylinder (4). The upper scraper (13) is used to scrape the inner wall of the upper shield cylinder (5) and the base cylinder (4) located on the upper side of the support arm (9). The lower scraper (14) is used to scrape the inner wall of the lower shield cylinder (6) and the base cylinder (4) located on the lower side of the support arm (9). The flushing assembly is provided with an auxiliary spraying part (16) facing the area between the upper scraper (13) and the lower scraper (14).

2. The forging apparatus for forming a forging part according to claim 1, characterized in that, The bearing arm (9) is rotatably mounted with a transmission cylinder (17), and the transmission cylinder (17) is rotatably mounted with a liquid supply pipe (18). The liquid supply passage is the inner cavity of the liquid supply pipe (18). One end of the liquid supply pipe (18) is connected to an external liquid supply device, and the other end of the liquid supply pipe (18) is connected to the inner cavity of the connecting sleeve (10). The bearing arm (9) located inside the base cylinder (4) is provided with a mounting seat (19), and the transmission unit is located inside the mounting seat (19).

3. The forging apparatus for forming a forging part according to claim 2, characterized in that, Each of the flushing units (11) includes a hollow rotating shaft (20), multiple spray rods (21) and multiple nozzles (22). Two hollow rotating shafts (20) are rotatably and sealed to the upper and lower ends of the connecting sleeve (10). The spray rods (21) are located at the end of the corresponding hollow rotating shaft (20) away from the connecting sleeve (10) and communicate with the inner cavity of the hollow rotating shaft (20). Multiple nozzles (22) are spaced along the length of the spray rods (21) and communicate with the inner cavity of the hollow rotating shafts (20) through the spray rods (21). At least some of the nozzles (22) are oriented toward the corresponding cavity and at least some of the nozzles (22) are inclined toward the inner wall of the corresponding cavity.

4. The forging apparatus for forming a forging part according to claim 3, characterized in that, The connecting sleeve (10) is set inside the mounting base (19). The upper and lower ends of the mounting base (19) are respectively provided with bearings for rotating support of the corresponding hollow rotary shaft (20). The connecting sleeve (10) is fixed inside the mounting base (19) and is coaxial with the base cylinder (4) and the two hollow rotary shafts (20).

5. The forging apparatus for forming a forging part according to claim 4, characterized in that, One end of the transmission cylinder (17) is connected to the first rotary drive (23) located outside the base cylinder (4), and the other end extends into the mounting base (19). The transmission unit includes a first driving bevel gear (24) fixed at the end of the transmission cylinder (17) in the mounting base (19) and two first driven bevel gears (25) respectively fixed on the two hollow rotary shafts (20). The first driving bevel gear (24) and the two first driven bevel gears (25) mesh to synchronously drive the two hollow rotary shafts (20) to rotate.

6. The forging apparatus for forming a forging part according to claim 3, characterized in that, Inside the base cylinder (4), an upper connecting arm (26) and a lower connecting arm (27) are fixed on the outer walls of two hollow rotary shafts (20). The upper scraper (13) is connected to the upper connecting arm (26), and the lower scraper (14) is connected to the lower connecting arm (27). When the two hollow rotary shafts (20) rotate, the upper scraper (13) and the lower scraper (14) respectively form independent circumferential scraping areas on the upper and lower sides of the bearing arm (9).

7. A forging apparatus for forming a forging part according to claim 6, characterized in that, The upper scraper (13) and the lower scraper (14) each include a fixed scraping section (28) and a telescopic scraping section (29) that slides along the axial direction of the fixed scraping section (28). The upper shielding cylinder (5) and the lower shielding cylinder (6) are respectively provided with annular guide grooves (30). The ends of the two telescopic scraping sections (29) slide with the corresponding annular guide grooves (30). The bearing arm (9) and the area connected to the base cylinder (4) are located between the scraping range of the upper scraper (13) and the lower scraper (14). The auxiliary spraying part (16) includes a plurality of auxiliary nozzles (31) arranged toward this area to rinse the area that the upper scraper (13) and the lower scraper (14) cannot directly scrape.

8. A forging apparatus for forming a forging part according to claim 7, characterized in that, The annular slag trough (15) is provided with a slag discharge notch (32), and the lower end of the lower scraper (14) is provided with a slag pushing part (33) that extends at least partially into the annular slag trough (15), so that when the lower scraper (14) rotates, the residue in the annular slag trough (15) is pushed circumferentially to the slag discharge notch (32).

9. A forging apparatus for forming a forging part according to claim 8, characterized in that, The slag pushing part (33) is located at the lower end of the telescopic scraper section (29) of the lower scraper (14), and the slag pushing part (33) is an elastic sheet; the annular slag accumulation trough (15) is provided with a slag discharge ramp near the slag discharge gap (32) so that the residue falling into the annular slag accumulation trough (15) is discharged from the slag discharge gap (32) under the combined action of the circumferential pushing of the slag pushing part (33) and the spray liquid.

10. A forging apparatus for forming a forging part according to claim 1, characterized in that, The displacement drive unit (7) includes a guide seat (34) disposed on one side of the base (1), a movable seat (35) slidably mounted on the guide seat (34), and a linear drive member (36) for driving the movable seat (35) to move. The base cylinder (4) is fixedly disposed on the movable seat (35). The telescopic unit (8) includes a bidirectional lead screw (37) rotatably disposed on the base cylinder (4) and a second rotary drive member (40) for driving the bidirectional lead screw (37) to rotate. A first connector (38) and a second connector (39) are respectively threaded on two threaded sections with opposite directions on the bidirectional lead screw (37). The first connector (38) and the second connector (39) are respectively connected to the upper cover cylinder (5) and the lower cover cylinder (6).

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