Thin-wall alloy casting gravity casting equipment and casting process

Abstract

The invention belongs to the technical field of gravity casting, and particularly relates to thin-wall alloy casting gravity casting equipment and a casting technology.The thin-wall alloy casting gravity casting equipment comprises a workbench, a lower die is fixedly connected to one side of the upper end face of the workbench, a top plate is fixedly connected to the upper end face of the workbench, and a feeding port is formed in one side of an upper die and used for injecting metal raw materials; the workbench is provided with a transfer stacking type ejection mechanism used for enabling the formed gear to be separated from the lower die cavity. By means of the transfer stacking type ejection mechanism, after the thin-wall gear is formed, the thin-wall gear can be ejected out of the mold cavity, the thin-wall gear is placed on the tray, tidy stacking of the multiple formed thin-wall gears is achieved, subsequent unified transfer of the multiple thin-wall gears is facilitated, and the production efficiency is improved. And the process of manually taking the mold out of the mold cavity by a worker is omitted, so that the labor intensity of the worker is reduced, and the situation that fingers of the worker are clamped by the mold and the hand is injured is also avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of gravity casting, in particular to a thin-wall alloy casting gravity casting device and a casting process. Background Art

[0002] Thin-walled alloy castings refer to alloy metal molded objects with thinner walls obtained through a casting process. Casting is divided into gravity casting and pressure casting according to the pouring process of the molten metal. Gravity casting uses the effect of the earth's gravity to pour the molten metal into a pre-prepared metal cavity. After the molten metal cools and solidifies, the required casting can be obtained. In some cases, gears can be designed into thin-walled structures to meet specific space, weight or performance requirements. Such thin-walled gears can be made by casting.

[0003] The patent with the announcement number CN210334251U discloses a thin-walled aluminum alloy box metal mold casting mold, including an upper bottom plate, a limit buffer mechanism and a water inlet, the inner surface of the upper bottom plate is screwed with a telescopic tube, the top of the gas pressure rod is connected to the upper mold, the lower mold is installed below the limit buffer mechanism, the inner surface of the lower mold is welded with an auxiliary cooling mechanism, the outer surface of the cooling pipe is connected with a thermal insulation layer, and the water inlet is located at the front end surface of the lower mold. Compared with the existing ordinary casting mold, the thin-walled aluminum alloy box metal mold casting mold can limit the inside of the casting mold, maintain the accuracy of the casting inside the mold, reduce the defective rate of the mold, improve the working efficiency of the casting mold, and reduce the waste of metal raw materials. In addition, the casting mold can be blown in multiple directions to accelerate the heat dissipation of the component surface and improve the cooling efficiency of the mold on the component.

[0004] However, the above technical solution still has the following deficiencies in practical application: When the molded casting is a thin-walled gear, after the thin-walled gear is formed, since the molded thin-walled gear is in a state of being embedded in the mold cavity, workers are required to manually take it out, which not only increases the labor intensity of the workers, but may even cause the workers' fingers to be stuck in the mold, thereby causing hand injuries. In addition, the removed thin-walled gear may be placed in a messy state around, which is not conducive to the subsequent unified transportation of multiple thin-walled gears. In addition, under normal circumstances, staff are required to use visual inspection to check the tooth quality of the molded thin-walled gears. This is because the tooth quality is directly related to the transmission performance, service life and overall reliability of the gear. In order to facilitate inspection, multiple thin-walled gears will be uniformly inspected after being formed. If multiple thin-walled gears are placed in a relatively messy state, it is easy to cause confusion during inspection, thereby affecting the accuracy of the inspection.

[0005] To this end, the present invention provides a thin-wall alloy casting gravity casting equipment and a casting process. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a gravity casting device and a casting process for thin-walled alloy castings.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a thin-walled alloy casting gravity casting equipment, including a workbench, a lower mold is fixedly connected to one side of the upper end surface of the workbench, a top plate is fixedly connected to the upper end surface of the workbench, two slide bars are slidably connected to one side of the top plate, an upper mold is fixedly connected to the lower end of the slide bar, a feed port is arranged on one side of the upper mold for injecting metal raw materials, and a transfer stacking ejection mechanism for separating the formed thin-walled gear from the lower mold cavity is arranged on the workbench; The transfer stacking ejection mechanism includes two lifting rods slidably connected to the workbench and the lower mold, the upper end surface of the lifting rod is flush with the bottom of the lower mold cavity, and when the lower end surface of the upper mold is in contact with the upper end surface of the lower mold, a complete molding cavity can be formed. The left side of the lower end of the workbench is fixedly connected to a support seat, and the left upper end of the support seat is fixedly connected to a base, and a plurality of polymer plates are slidably connected to the base, and the left side of the base is fixedly connected to a frame body, and the upper and lower ends of one side of the frame body are fixedly connected to a sliding rod four, and the sliding rod four is slidably connected to a tray, and the tray is plugged into the polymer plate through a groove, and the polymer plate can slide in the groove of the tray, and the middle part of the right side of the upper end surface of the workbench is fixedly connected to a fixed plate, and two sliding rods two are slidably connected to the upper side of the fixed plate, and the left end of the sliding rod two is fixedly connected to a displacement block, and the lower end of the displacement block is fixedly connected to a fixed plate, and the front and rear sides of the fixed plate are slidably connected to positioning blocks.

[0008] Preferably, a hydraulic cylinder is fixedly connected to the left side of the upper end surface of the top plate, and the piston end of the hydraulic cylinder is fixedly connected to the middle part of the upper end surface of the upper mold.

[0009] Preferably, the lower end of the lifting rod is fixedly connected to a lifting rod, one side of the lower end surface of the workbench is fixedly connected to an electric push rod three, and the piston end of the electric push rod three is fixedly connected to the middle part of the upper end surface of the lifting rod.

[0010] Preferably, an electric push rod is fixedly connected to the upper side of the right end surface of the fixed plate, and the piston end of the electric push rod is fixedly connected to one side of the right end surface of the displacement block. Positioning blocks are slidably connected to the front and rear ends of the lower side of the fixed plate, and a two-way threaded rod is threadedly connected to the upper end of the positioning block. The front and rear ends of the two-way threaded rod are rotatably arranged on the fixed plate, and a motor is fixedly connected to one side of the front end surface of the fixed plate, and the output end of the motor is fixedly connected to the front end of the two-way threaded rod.

[0011] Preferably, a threaded rod is threadedly connected to the rear end of one side of the tray, and the upper and lower ends of the threaded rod are rotatably arranged on the frame. A motor four is fixedly connected to one side of the lower end surface of the frame, and the output end of the motor four is fixedly connected to the lower end of the threaded rod.

[0012] Preferably, a guide column is fixedly connected to one side of the lower end of the polymer plate, a groove ring is rotatably provided in the middle of the lower end surface of the base, the guide column is inserted into the groove of the groove ring and is slidably connected thereto, a motor three is fixedly connected to the middle of the lower end surface of the base, and the output end of the motor three is fixedly connected to the middle of the groove ring.

[0013] Preferably, a gear ring is rotatably provided on the right side of the base, a rotating plate is fixedly connected to the middle part of the right side of the gear ring, sliding rods three are slidably connected to the upper and lower sides of the rotating plate, and a shifting rod is fixedly connected to the left end of the sliding rod three.

[0014] Preferably, a gear is rotatably provided in the middle part of the right side of the upper end surface of the base, and the gear is meshed with the inner tooth block of the gear ring. An electric push rod 2 is fixedly connected to the middle part of the right end surface of the rotating plate, and the piston end of the electric push rod 2 is fixedly connected to the lever. A motor 2 is fixedly connected to the middle part of the right side of the lower end surface of the base, and the output end of the motor 2 is fixedly connected to the gear.

[0015] Preferably, a cold air blower is arranged in the middle of the lower end surface of the workbench, the air outlet end of the cold air blower is connected to a branch pipe, both ends of the branch pipe are connected to a long tube, a plurality of air outlets are arranged on the long tube, and both ends of the long tube are fixedly connected to the workbench, and the air outlets face the lower mold and the upper mold.

[0016] A thin-wall alloy casting gravity casting process comprises the following specific steps: S1. After the upper die and the lower die form a complete molding cavity, metal raw materials are injected into the molding cavity for casting; S2. Use a cooling fan to deliver cold air to the branch pipe and the long pipe to accelerate the heat dissipation of the lower mold and the upper mold. When the thin-walled gear is cooled and formed in the molding cavity, the upper mold is driven to separate from the lower mold, and then the lifting rod is driven to rise and eject the thin-walled gear; S3, then drive the displacement block to move from right to left until the fixed disk and the positioning block are in the inner cavity of the thin-walled gear, drive the positioning blocks on both sides to slide and move away from each other at the same time, until they fit with the inner wall of the thin-walled gear, so that the thin-walled gear can be fixed, and the fixed disk continues to move to the left until the thin-walled gear is above the polymer plate, and drive the two positioning blocks to move away from each other, so that multiple polymer plates can pass through the gear holes and contact the tray, and the fixed disk is reset, and the above operations can be repeated to place multiple thin-walled gears on the tray in an overlapping manner; S4. When the tooth quality of thin-walled gears needs to be inspected, multiple aggregate plates are driven to move radially at the same time, so that the aggregate plates push the inner wall of the thin-walled gears to make the axes of the multiple thin-walled gears coincide, and then the lever is driven to move so that the left side is inserted between the tooth blocks of the thin-walled gears, and then the lever is driven to rotate and push the tooth blocks of the gears until the tooth blocks of the multiple thin-walled gears are aligned. At this time, the quality of the tooth blocks of the thin-walled gears is inspected again, and the inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections; S5. When the thin-walled gears need to be removed from the pallet for transportation, the pallet is driven to rise. When the pallet rises, the plurality of thin-walled gears are pushed upward, and the plurality of thin-walled gears can be removed.

[0017] The beneficial effects of the present invention are as follows: 1. The thin-walled alloy casting gravity casting equipment and casting process described in the present invention utilizes a transfer stacking ejection mechanism to eject the thin-walled gear from the mold cavity after the thin-walled gear is formed, and place the thin-walled gear on a tray, thereby realizing the neat stacking of multiple formed thin-walled gears, facilitating the subsequent unified transportation of multiple thin-walled gears, and eliminating the need for personnel to manually remove them from the mold cavity, which not only reduces the labor intensity of workers, but also avoids the situation where workers' fingers are stuck in the mold and cause hand injuries. Moreover, when multiple thin-walled gears are stacked on the tray and the tooth quality of the thin-walled gears needs to be checked, the multi-directional pushing mechanism can be used to push the thin-walled gears out of the mold cavity. The tooth blocks of multiple thin-walled gears can be aligned in this way. At this time, the tooth blocks of the thin-walled gears are quality inspected again. Inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections to find differences or abnormalities between different gears without confusion, thereby more accurately evaluating the quality of the thin-walled gears. When the thin-walled gears need to be removed from the pallet for transportation, the motor 4 can be used to drive the threaded rod to rotate to raise the pallet. When the pallet rises, multiple thin-walled gears are pushed upward, which makes it easy for the staff to remove the thin-walled gears, avoiding the trouble of the bottom thin-walled gears being difficult to remove, and facilitating unified transportation.

[0018] 2. The thin-walled alloy casting gravity casting equipment and casting process described in the present invention utilizes a cold air blower to deliver cold air to the branch pipe and the long pipe, thereby accelerating the heat dissipation of the lower mold and the upper mold, providing auxiliary effects for cooling and improving the cooling efficiency of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 yes Figure 1A partial enlarged view of the middle part; Figure 3 It is a schematic diagram of the local three-dimensional structure at the top plate; Figure 4 It is a schematic diagram of the local three-dimensional structure at the fixed disk; Figure 5 It is a schematic diagram of the local three-dimensional structure at the support seat; Figure 6 It is a schematic diagram of the local three-dimensional structure at the polymer plate; Figure 7 It is a schematic diagram of the local three-dimensional structure at the lifting rod; Figure 8 It is a schematic diagram of the local three-dimensional structure at the groove ring; Fig. 9 It is a schematic diagram of the local three-dimensional structure of the tray.

[0021] In the figure: 1. workbench; 2. top plate; 3. hydraulic cylinder; 4. slide bar 1; 5. lower mold; 6. upper mold; 7. support seat; 8. frame; 9. lifting rod; 10. long tube; 11. air outlet; 12. branch pipe; 13. lifting rod; 14. electric push rod 1; 15. slide bar 2; 16. fixed plate; 17. displacement block; 18. fixed plate; 19. positioning block; 20. two-way threaded rod; 21. motor 1; 22. aggregation plate; 23. rotating plate; 24. electric push rod 2; 25. slide bar 3; 26. lever; 27. slide bar 4; 28. threaded rod; 29. ​​tray; 30. gear ring; 31. gear; 32. base; 33. air cooler; 34. motor 2; 35. groove ring; 36. guide column; 37. motor 3; 38. motor 4; 39. electric push rod 3. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to Figure 1-Figure 9 The present invention provides a technical solution: a thin-walled alloy casting gravity casting equipment, comprising a workbench 1, a lower mold 5 is fixedly connected to one side of the upper end surface of the workbench 1, a top plate 2 is fixedly connected to the upper end surface of the workbench 1, two slide bars 4 are slidably connected to one side of the top plate 2, an upper mold 6 is fixedly connected to the lower end of the slide bar 4, a feed port is arranged on one side of the upper mold 6 for injecting metal raw materials, and a transfer stacking ejection mechanism for separating the formed thin-walled gear from the mold cavity of the lower mold 5 is arranged on the workbench 1; The transfer stacking ejection mechanism includes two lifting rods 9 slidably connected to the workbench 1 and the lower mold 5. The upper end surface of the lifting rod 9 is flush with the bottom of the mold cavity of the lower mold 5, and when the lower end surface of the upper mold 6 is in contact with the upper end surface of the lower mold 5, a complete molding cavity can be formed. The left side of the lower end of the workbench 1 is fixedly connected to a support seat 7, and the upper end of the left side of the support seat 7 is fixedly connected to a base 32. A plurality of polymer plates 22 are slidably connected to the base 32. The left side of the base 32 is fixedly connected to a frame 8. The upper and lower ends of one side of the frame 8 are A sliding rod 4 27 is fixedly connected, and a tray 29 is slidably connected to the sliding rod 4 27. The tray 29 is plugged into the polymer plate 22 through a groove, and the polymer plate 22 can slide in the groove of the tray 29. A fixed plate 16 is fixedly connected to the middle of the right side of the upper end surface of the workbench 1, and two sliding rods 2 15 are slidably connected to the upper side of the fixed plate 16. A displacement block 17 is fixedly connected to the left end of the sliding rod 2 15, and a fixed plate 18 is fixedly connected to the lower end of the displacement block 17. Positioning blocks 19 are slidably connected to the front and rear sides of the fixed plate 18.

[0024] In this embodiment, Figure 1-Figure 9 As shown, a hydraulic cylinder 3 is fixedly connected to the left side of the upper end surface of the top plate 2, and the piston end of the hydraulic cylinder 3 is fixedly connected to the middle part of the upper end surface of the upper die 6; The lower end of the jacking rod 9 is fixedly connected to the lifting rod 13, and one side of the lower end surface of the workbench 1 is fixedly connected to the electric push rod 39, and the piston end of the electric push rod 39 is fixedly connected to the middle part of the upper end surface of the lifting rod 13; An electric push rod 14 is fixedly connected to the upper side of the right end surface of the fixed plate 16, and the piston end of the electric push rod 14 is fixedly connected to one side of the right end surface of the displacement block 17. Positioning blocks 19 are slidably connected to both the front and rear ends of the lower side of the fixed plate 18. A bidirectional threaded rod 20 is threadedly connected to the upper end of the positioning block 19. Both the front and rear ends of the bidirectional threaded rod 20 are rotatably arranged on the fixed plate 18. A motor 21 is fixedly connected to one side of the front end surface of the fixed plate 18, and the output end of the motor 21 is fixedly connected to the front end of the bidirectional threaded rod 20. A threaded rod 28 is threadedly connected to the rear end of one side of the tray 29. The upper and lower ends of the threaded rod 28 are rotatably arranged on the frame 8. A motor 4 38 is fixedly connected to one side of the lower end surface of the frame 8. The output end of the motor 4 38 is fixedly connected to the lower end of the threaded rod 28. A guide column 36 is fixedly connected to one side of the lower end of the polymer plate 22, a groove ring 35 is rotatably provided at the middle of the lower end surface of the base 32, the guide column 36 is inserted into the groove of the groove ring 35 and is slidably connected thereto, a motor 37 is fixedly connected to the middle of the lower end surface of the base 32, and the output end of the motor 37 is fixedly connected to the middle of the groove ring 35; A gear ring 30 is rotatably arranged on the right side of the base 32, a rotating plate 23 is fixedly connected to the middle part of the right side of the gear ring 30, a sliding rod 3 25 is slidably connected to both the upper and lower sides of the rotating plate 23, and a lever 26 is fixedly connected to the left end of the sliding rod 3 25; A gear 31 is rotatably provided at the middle right side of the upper end surface of the base 32, and the gear 31 meshes with the inner gear block of the gear ring 30. An electric push rod 24 is fixedly connected to the middle right side of the rotating plate 23, and the piston end of the electric push rod 24 is fixedly connected to the lever 26. A motor 2 34 is fixedly connected to the middle right side of the lower end surface of the base 32, and the output end of the motor 2 34 is fixedly connected to the gear 31. Specifically, thin-walled alloy castings refer to alloy metal molded objects with thin wall thickness obtained through casting technology. Casting is divided into gravity casting and pressure casting according to the pouring process of molten metal. Gravity casting uses the effect of the earth's gravity to pour molten metal into a pre-prepared metal cavity. After the molten metal cools and solidifies, the required casting can be obtained. In some cases, gears can be designed into thin-walled structures to meet specific space, weight or performance requirements. Such thin-walled gears can be made by casting; when the existing casting equipment is in use, when the molded casting is a thin-walled gear, after the thin-walled gear is formed, because the molded thin-walled gear is in a state of being embedded in the mold cavity, workers still need to manually Taking it out not only increases the labor intensity of the workers, but may even cause the workers' fingers to be stuck in the mold, resulting in hand injuries. In addition, the removed thin-walled gears may be placed in a messy state around, which is not conducive to the subsequent unified transportation of multiple thin-walled gears. In general, the staff needs to use visual inspection to check the tooth quality of the formed thin-walled gears. This is because the tooth quality is directly related to the transmission performance, service life and overall reliability of the gear. In order to facilitate inspection, multiple thin-walled gears will be uniformly inspected after being formed. If multiple thin-walled gears are placed in a relatively messy state, it is easy to cause confusion during inspection, which affects the accuracy of the inspection. Therefore, in order to solve the above problems, this embodiment is used for thin-walled gear casting. After the upper mold 6 and the lower mold 5 form a complete molding cavity, metal raw material is injected into the molding cavity for casting. After the thin-walled gear is cooled and formed in the molding cavity, the upper mold 6 is driven to rise by the hydraulic cylinder 3 to separate the upper mold 6 from the lower mold 5, and then the electric push rod 3 39 is used to drive the lifting rod 13 to rise, so that the lifting rod 9 rises and pushes the thin-walled gear out, and then the electric push rod 14 drives the displacement block 17 to move from right to left until the fixed plate 18 and the positioning block 19 are in the inner cavity of the thin-walled gear, and then the motor 1 21 is started and drives the bidirectional screw The threaded rod 20 rotates to make the positioning blocks 19 on both sides slide and move away from each other at the same time until they fit with the inner wall of the thin-walled gear, so that the thin-walled gear can be fixed. Then the fixing plate 18 continues to move to the left until the thin-walled gear is above the polymer plate 22 and the polymer plate 22 is aligned with the gear hole of the thin-walled gear. Then the two positioning blocks 19 are driven away from each other, so that multiple polymer plates 22 can pass through the gear holes and contact the tray 29. Then the fixing plate 18 is reset. By repeating the above operation, multiple thin-walled gears can be overlapped and placed on the tray 29, thereby realizing the neat stacking of the formed thin-walled gears, which is convenient for the subsequent unified transportation of multiple thin-walled gears. When multiple thin-walled gears are stacked on the tray 29 and the tooth quality of the thin-walled gears needs to be inspected, since the edges of the thin-walled gears are not aligned at this time, it is not conducive to the comparison inspection between the thin-walled gears, which affects the accuracy of the inspection. Therefore, the groove ring 35 can be driven to rotate by the motor 37 to make the multiple guide pillars 36 and the polymer plate 22 move radially at the same time, so that the polymer plate 22 pushes the inner wall of the thin-walled gear to make the axis of the multiple thin-walled gears coincide, and then the electric push rod 24 is used to drive the lever 26 to move horizontally, so that the left side of the lever 26 is inserted between the tooth blocks of the thin-walled gears. Since the left side of the lever 26 is an arc surface, even if the lever 26 contacts with the tooth block, and the tooth block also forms relative sliding with the lever 26, so that the thin-walled gear rotates slightly to insert the lever 26 between the tooth blocks, and then the motor 2 34 drives the gear 31 to rotate, so that the gear ring 30 rotates, and the lever 26 can be used to push the tooth block of the gear 31 until the tooth blocks of multiple thin-walled gears are aligned, and then the lever 26 is driven away from the thin-walled gear. At this time, the tooth blocks of the thin-walled gears are inspected for quality, and the inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections to find differences or abnormalities between different gears, so as to more accurately evaluate the quality of the thin-walled gears; When the thin-walled gears need to be removed from the tray 29 for transportation, the motor 38 can be used to drive the threaded rod 28 to rotate, so that the tray 29 rises. When the tray 29 rises, the plurality of thin-walled gears are pushed upward, which makes it easier for the staff to remove the thin-walled gears, thus avoiding the trouble of the bottom thin-walled gears being difficult to remove. Therefore, by utilizing the transfer stacking ejection mechanism, the thin-walled gear can be ejected from the mold cavity after the thin-walled gear is formed, and the thin-walled gear can be placed on the tray 29, thereby realizing the neat stacking of multiple formed thin-walled gears, facilitating the subsequent unified transportation of multiple thin-walled gears, and eliminating the process of manually taking them out of the mold cavity, which not only reduces the labor intensity of workers, but also avoids the situation where the worker's fingers are stuck in the mold and cause hand injuries. In addition, when multiple thin-walled gears are stacked on the tray 29 and the tooth quality of the thin-walled gears needs to be checked, the gear blocks of the multiple thin-walled gears can be aligned by multi-directional pushing. At this time, the quality of the tooth blocks of the thin-walled gears is inspected again. The inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections to find differences or abnormalities between different gears without confusion, thereby more accurately evaluating the quality of the thin-walled gears. When the thin-walled gears need to be removed from the tray 29 for transportation, the motor 38 can be used to drive the threaded rod 28 to rotate, so that the tray 29 rises. When the tray 29 rises, multiple thin-walled gears are pushed out upward, which makes it easy for the staff to remove the thin-walled gears, avoiding the trouble of the bottom thin-walled gears being difficult to remove, and facilitating unified transportation.

[0025] In this embodiment, Figure 3 and Figure 7 As shown, a cooling fan 33 is provided in the middle of the lower end surface of the workbench 1, and the air outlet of the cooling fan 33 is connected to a branch pipe 12, and both ends of the branch pipe 12 are connected to a long tube 10, and a plurality of air outlets 11 are provided on the long tube 10, and both ends of the long tube 10 are fixedly connected to the workbench 1, and the air outlets 11 face the lower mold 5 and the upper mold 6; Specifically, the cooling fan 33 is used to deliver cold air to the branch pipe 12 and the long pipe 10, so as to accelerate the heat dissipation of the lower mold 5 and the upper mold 6, provide auxiliary effect for cooling, and improve the cooling efficiency of the casting.

[0026] A thin-wall alloy casting gravity casting process comprises the following specific steps: S1. After the upper mold 6 and the lower mold 5 form a complete molding cavity, metal raw materials are injected into the molding cavity for casting; S2, using the cooling fan 33 to deliver cold air to the branch pipe 12 and the long pipe 10 to accelerate the heat dissipation of the lower mold 5 and the upper mold 6. After the thin-walled gear is cooled and formed in the molding cavity, the upper mold 6 is driven to separate from the lower mold 5, and then the lifting rod 9 is driven to rise and eject the thin-walled gear; S3, then drive the displacement block 17 to move from right to left until the fixed plate 18 and the positioning block 19 are in the inner cavity of the thin-walled gear, drive the positioning blocks 19 on both sides to slide and move away from each other at the same time until they fit with the inner wall of the thin-walled gear, so that the thin-walled gear can be fixed, and the fixed plate 18 continues to move to the left until the thin-walled gear is above the polymer plate 22, and drive the two positioning blocks 19 to move away from each other, so that multiple polymer plates 22 can pass through the gear hole and contact the tray 29, and the fixed plate 18 is reset, and the above operation can be repeated to make multiple thin-walled gears overlap and be placed on the tray 29; S4. When the tooth quality of the thin-walled gear needs to be inspected, the multiple aggregate plates 22 are driven to move radially at the same time, so that the multiple thin-walled gear axes coincide with each other by pushing the inner wall of the thin-walled gear by the aggregate plates 22. Then the lever 26 is driven to move so that the left side is inserted between the tooth blocks of the thin-walled gear. Then the lever 26 is driven to rotate and the tooth blocks of the gear 31 are pushed until the tooth blocks of the multiple thin-walled gears are aligned. At this time, the tooth blocks of the thin-walled gears are inspected for quality. The inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections. S5. When the thin-walled gears need to be removed from the tray 29 for transportation, the tray 29 is driven to rise. When the tray 29 rises, the plurality of thin-walled gears are pushed upward, and the plurality of thin-walled gears can be removed.

[0027] Working principle: After the upper mold 6 and the lower mold 5 form a complete molding cavity, metal raw materials are injected into the molding cavity for casting, and then the cold air blower 33 is used to transport cold air to the branch pipe 12 and the long tube 10, so as to accelerate the heat dissipation of the lower mold 5 and the upper mold 6, provide auxiliary effect for cooling and reduce temperature, and improve the cooling efficiency of the casting; when the thin-walled gear is cooled and formed in the molding cavity, the hydraulic cylinder 3 is used to drive the upper mold 6 to rise, so that the upper mold 6 is separated from the lower mold 5, and then the electric push rod 3 39 is used to drive the lifting rod 13 to rise, so that the lifting rod 9 rises and pushes out the thin-walled gear, and then the electric push rod 14 drives the displacement block 17 to move from right to left until the fixed plate 18 and the positioning block 19 are in the inner cavity of the thin-walled gear, and then the motor 21 is started and drives the bidirectional threaded rod The thin-walled gear is fixed by rotating the positioning blocks 19 on both sides simultaneously and moving away from each other until they are in contact with the inner wall of the thin-walled gear, and then the fixing plate 18 continues to move to the left until the thin-walled gear is above the polymer plate 22 and the polymer plate 22 is aligned with the gear hole of the thin-walled gear, and then the two positioning blocks 19 are driven away from each other, so that a plurality of polymer plates 22 can pass through the gear hole and contact the tray 29, and then the fixing plate 18 is reset, and the above operation can be repeated to place a plurality of thin-walled gears on the tray 29 in an overlapping manner, thereby realizing the neat stacking of the formed thin-walled gears and facilitating the subsequent unified transportation of a plurality of thin-walled gears; when a plurality of thin-walled gears are stacked on the tray 29 and the tooth quality of the thin-walled gears needs to be inspected, due to this The edges of the thin-walled gears are not yet aligned, which is not conducive to the comparison inspection between the thin-walled gears and affects the accuracy of the inspection. Therefore, the groove ring 35 can be driven to rotate by the motor 37 to make the multiple guide pillars 36 and the polymer plate 22 move radially at the same time, so that the polymer plate 22 can push the inner wall of the thin-walled gear to make the axes of the multiple thin-walled gears coincide. Then, the electric push rod 24 is used to drive the lever 26 to move horizontally, so that the left side of the lever 26 is inserted between the tooth blocks of the thin-walled gears. Since the left side of the lever 26 is an arc surface, even if the lever 26 contacts the tooth block, the tooth block will form a relative sliding with the lever 26, so that the thin-walled gear rotates slightly to insert the lever 26 between the tooth blocks. Then, the motor 234 is used to drive the gear 31 to rotate, so that the gear ring 30 rotates. The lever 26 can be used to push the tooth block of the gear 31 until the tooth blocks of the multiple thin-walled gears are aligned, and then the lever 26 is driven away from the thin-walled gear. At this time, the tooth blocks of the thin-walled gears are inspected for quality, and the inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections to find differences or abnormalities between different gears, thereby more accurately evaluating the quality of the thin-walled gears; when the thin-walled gears need to be removed from the tray 29 for transportation, the motor 38 can be used to drive the threaded rod 28 to rotate, so that the tray 29 rises. When the tray 29 rises, the multiple thin-walled gears are pushed upward, which makes it easier for the staff to remove the thin-walled gears, avoiding the trouble of the bottom thin-walled gears being difficult to remove;Therefore, by utilizing the transfer stacking ejection mechanism, the thin-walled gear can be ejected from the mold cavity after the thin-walled gear is formed, and the thin-walled gear can be placed on the tray 29, thereby realizing the neat stacking of multiple formed thin-walled gears, facilitating the subsequent unified transportation of multiple thin-walled gears, and eliminating the process of manually taking them out of the mold cavity, which not only reduces the labor intensity of workers, but also avoids the situation where the worker's fingers are stuck in the mold and cause hand injuries. In addition, when multiple thin-walled gears are stacked on the tray 29 and the tooth quality of the thin-walled gears needs to be checked, the gear blocks of the multiple thin-walled gears can be aligned by multi-directional pushing. At this time, the quality inspection of the gear block of the thin-walled gear is carried out again. The inspectors can more easily observe multiple aspects of the thin-walled gear from a unified perspective, and can more easily conduct comparative inspections to find differences or abnormalities between different gears, which is not easy to confuse, so as to more accurately evaluate the quality of the thin-walled gear. When the thin-walled gear needs to be removed from the tray 29 for transportation, the motor 4 38 can be used to drive the threaded rod 28 to rotate, so that the tray 29 rises. When the tray 29 rises, multiple thin-walled gears are pushed upward, which makes it easier for the staff to remove the thin-walled gears, avoiding the trouble of the bottom thin-walled gears being difficult to remove, and facilitating unified transportation. ;

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A thin-wall alloy casting gravity casting device, comprising a workbench (1), characterized in that: A lower mold (5) is fixedly connected to one side of the upper end surface of the workbench (1), a top plate (2) is fixedly connected to the upper end surface of the workbench (1), two slide bars (4) are slidably connected to one side of the top plate (2), an upper mold (6) is fixedly connected to the lower end of the slide bar (4), a feed port is provided on one side of the upper mold (6) for injecting metal raw materials, and a transfer stacking ejection mechanism for separating the formed thin-walled gear from the mold cavity of the lower mold (5) is provided on the workbench (1); The transfer stacking ejection mechanism comprises two ejection rods (9) slidably connected to the workbench (1) and the lower mold (5), the upper end surface of the ejection rod (9) is flush with the bottom of the mold cavity of the lower mold (5), and when the lower end surface of the upper mold (6) is in contact with the upper end surface of the lower mold (5), a complete molding cavity can be formed, the lower end of the workbench (1) is fixedly connected to a support seat (7) on the left side of the lower end, the upper end of the support seat (7) is fixedly connected to a base (32), a plurality of polymer plates (22) are slidably connected to the base (32), the left side of the base (32) is fixedly connected to a frame (8), and the upper and lower ends of one side of the frame (8) are fixedly connected. A sliding rod four (27) is fixedly connected, and the sliding rod four (27) is slidably connected to a tray (29). The tray (29) is plugged into the polymer plate (22) through a groove, and the polymer plate (22) can slide in the groove of the tray (29). A fixed plate (16) is fixedly connected to the middle part of the right side of the upper end surface of the workbench (1), and two sliding rods two (15) are slidably connected to the upper side of the fixed plate (16). The left end of the sliding rod two (15) is fixedly connected to a displacement block (17), and the lower end of the displacement block (17) is fixedly connected to a fixed plate (18), and the front and rear sides of the fixed plate (18) are slidably connected to positioning blocks (19).

2. The thin-wall alloy casting gravity casting equipment according to claim 1, characterized in that: A hydraulic cylinder (3) is fixedly connected to the left side of the upper end surface of the top plate (2), and a piston end of the hydraulic cylinder (3) is fixedly connected to the middle part of the upper end surface of the upper die (6).

3. The thin-walled alloy casting gravity casting equipment according to claim 1, characterized in that: The lower end of the lifting rod (9) is fixedly connected to a lifting rod (13), and one side of the lower end surface of the workbench (1) is fixedly connected to an electric push rod three (39), and the piston end of the electric push rod three (39) is fixedly connected to the middle part of the upper end surface of the lifting rod (13).

4. The thin-walled alloy casting gravity casting equipment according to claim 1, characterized in that: An electric push rod 1 (14) is fixedly connected to the upper side of the right end surface of the fixed plate (16); a piston end of the electric push rod 1 (14) is fixedly connected to one side of the right end surface of the displacement block (17); positioning blocks (19) are slidably connected to both front and rear ends of the lower side of the fixed plate (18); a bidirectional threaded rod (20) is threadedly connected to the upper end of the positioning block (19); both front and rear ends of the bidirectional threaded rod (20) are rotatably arranged on the fixed plate (18); a motor 1 (21) is fixedly connected to one side of the front end surface of the fixed plate (18); an output end of the motor 1 (21) is fixedly connected to the front end of the bidirectional threaded rod (20).

5. The thin-wall alloy casting gravity casting equipment according to claim 1, characterized in that: A threaded rod (28) is threadedly connected to the rear end of one side of the tray (29); the upper and lower ends of the threaded rod (28) are rotatably arranged on the frame (8); a motor four (38) is fixedly connected to one side of the lower end surface of the frame (8); and the output end of the motor four (38) is fixedly connected to the lower end of the threaded rod (28).

6. The thin-wall alloy casting gravity casting equipment according to claim 1, characterized in that: A guide column (36) is fixedly connected to one side of the lower end of the polymer plate (22); a groove ring (35) is rotatably provided at the middle of the lower end surface of the base (32); the guide column (36) is inserted into the groove of the groove ring (35) and is slidably connected thereto; a motor three (37) is fixedly connected to the middle of the lower end surface of the base (32); an output end of the motor three (37) is fixedly connected to the middle of the groove ring (35).

7. The thin-wall alloy casting gravity casting equipment according to claim 1, characterized in that: A gear ring (30) is rotatably provided on the right side of the base (32), a rotating plate (23) is fixedly connected to the middle part of the right side of the gear ring (30), a sliding rod three (25) is slidably connected to the upper and lower sides of the rotating plate (23), and a shifting rod (26) is fixedly connected to the left end of the sliding rod three (25).

8. The thin-wall alloy casting gravity casting equipment according to claim 7, characterized in that: A gear (31) is rotatably provided in the middle of the right side of the upper end surface of the base (32), and the gear (31) is meshed with the inner tooth block of the gear ring (30). A second electric push rod (24) is fixedly connected to the middle of the right side of the rotating plate (23), and the piston end of the second electric push rod (24) is fixedly connected to the lever (26). A second motor (34) is fixedly connected to the middle of the right side of the lower end surface of the base (32), and the output end of the second motor (34) is fixedly connected to the gear (31).

9. The thin-wall alloy casting gravity casting equipment according to claim 1, characterized in that: A cooling fan (33) is arranged in the middle of the lower end surface of the workbench (1); the air outlet of the cooling fan (33) is connected to a branch pipe (12); both ends of the branch pipe (12) are connected to a long tube (10); a plurality of air outlets (11) are arranged on the long tube (10); and both ends of the long tube (10) are fixedly connected to the workbench (1); the air outlets (11) face the lower mold (5) and the upper mold (6).

10. A gravity casting process for thin-walled alloy castings, characterized in that: The casting is performed using the casting equipment according to any one of claims 1 to 9, comprising the following specific steps: S1, after the upper die (6) and the lower die (5) form a complete molding cavity, injecting metal raw material into the molding cavity to perform casting; S2, using a cooling fan (33) to deliver cold air to the branch pipe (12) and the long pipe (10) to accelerate the heat dissipation of the lower mold (5) and the upper mold (6); after the thin-walled gear is cooled and formed in the molding cavity, the upper mold (6) is driven to separate from the lower mold (5); and then the lifting rod (9) is driven to rise and eject the thin-walled gear; S3, then drive the displacement block (17) to move from right to left until the fixed plate (18) and the positioning block (19) are in the inner cavity of the thin-walled gear, drive the positioning blocks (19) on both sides to slide and move away from each other at the same time until they are in contact with the inner wall of the thin-walled gear, so that the thin-walled gear can be fixed, the fixed plate (18) continues to move to the left until the thin-walled gear is above the polymer plate (22), drive the two positioning blocks (19) to move away from each other, so that the multiple polymer plates (22) can pass through the gear hole and contact the tray (29), the fixed plate (18) is reset, and the above operation can be repeated to make the multiple thin-walled gears overlap and be placed on the tray (29); S4. When the tooth quality of the thin-walled gear needs to be inspected, the multiple aggregate plates (22) are driven to move radially at the same time, so that the multiple thin-walled gear axes coincide with each other in a manner that the aggregate plates (22) push the inner wall of the thin-walled gear. Then, the lever (26) is driven to move so that the left side is inserted between the tooth blocks of the thin-walled gear. Then, the lever (26) is driven to rotate and the tooth blocks of the gear (31) are pushed until the tooth blocks of the multiple thin-walled gears are aligned. At this time, the quality of the tooth blocks of the thin-walled gears is inspected again. The inspectors can more easily observe multiple aspects of the thin-walled gears from a unified perspective, and can more easily conduct comparative inspections. S5. When the thin-walled gears need to be removed from the tray (29) for transportation, the tray (29) is driven to rise. When the tray (29) rises, the plurality of thin-walled gears are pushed upward, and the plurality of thin-walled gears can be removed.

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