Die ejection supporting mechanism for casting disc casting

Abstract

The invention relates to the technical field of casting of disc castings, and discloses a mold ejection supporting mechanism for casting of disc castings, the mold ejection supporting mechanism comprises a fixed base and a mold cavity, and the outer side of the mold cavity is fixedly connected with a fixed frame; compared with the prior art, the ejection device has the advantages that each part of the disc casting can be ensured to be uniformly stressed in the ejection process, and the defects of casting deformation, cracks and the like caused by non-uniform stress are avoided, so that the dimensional accuracy and the surface quality of the casting are improved, and the reliability is enhanced; the device can be adsorbed on the surface of a casting with uniform negative pressure, and local pressure cannot be generated on the surface of the casting, so that surface scratches, deformation and other damages caused by too large clamping force are avoided, and the protection performance is improved; and a casting can be moved away from the top of the mold cavity, so that the mold cavity is completely exposed, a worker can conveniently and rapidly clean sundries and chippings left in the mold cavity and carry out next casting, and the operation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of disc casting, and particularly to a mold ejection and support mechanism for disc casting. Background Art

[0002] A disc casting refers to a metal product with a disc shape produced through the casting process. It is usually formed by pouring molten metal into a specific disc-shaped mold and then cooling and solidifying. In the current booming manufacturing industry, disc castings, as key components, are widely used in multiple core fields. In the automotive manufacturing industry, key components of engines such as flywheels and clutch pressure plates rely on the stable structure of disc castings to achieve power transmission and conversion; in the aerospace industry, high-precision disc castings such as turbine discs and compressor discs of aircraft engines play a decisive role in the performance and reliability of the engines; in the transmission systems of industrial machinery, various disc-shaped parts such as gears and pulleys are the basis for ensuring the stable operation of the equipment.

[0003] In the production process of disc castings, the casting process has become the mainstream choice due to its advantages of high efficiency, low cost, and the ability to manufacture parts with complex shapes. As the core part of the casting process, the performance of the mold ejection and support mechanism directly affects the quality and production efficiency of the castings. After the disc casting solidifies and forms, the ejection and support mechanism applies an appropriate force to eject the casting from the mold cavity. This process can overcome the adhesion and friction between the casting and the mold, ensuring that the casting is completely and smoothly removed from the mold, and avoiding damage or deformation of the casting caused by difficult demolding.

[0004] The existing mold ejection and support mechanism for disc casting cannot ensure that all parts of the disc casting receive uniform force during the ejection process, easily resulting in defects such as deformation and cracks of the casting due to uneven force, thus reducing the dimensional accuracy and surface quality of the casting, and the reliability is insufficient; and it cannot adsorb on the surface of the casting with uniform negative pressure, resulting in surface scratches, deformation and other damages caused by excessive clamping force, reducing the protection performance; it cannot move the casting away from the top of the mold cavity, making it inconvenient for workers to quickly clean the residual debris and chips inside the mold cavity, and the operation convenience is low; it cannot accurately reach the designated adsorption position of the disc casting, making it difficult to achieve precise adsorption, and the flexibility is low. Summary of the Invention

[0005] The purpose of the present invention is to solve the drawbacks existing in the prior art, and to propose a mold ejection and support mechanism for disc casting.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A mold ejection support mechanism for casting a disc casting, including a fixed base and a mold cavity. A fixed frame is fixedly connected to the outside of the mold cavity, and one end of the fixed frame is fixedly connected to the top of the fixed base. A lifting component and a support component for improving operation convenience are connected to the top of the fixed base. One end of the lifting component is connected with a vacuum adsorption component for facilitating the fixation of the disc casting, and a highly reliable ejection component is connected to the bottom of the mold cavity; The ejection component includes a first motor and a fixing plate. The first motor is fixedly connected to the top of the fixed base. Both ends of the fixing plate are fixedly connected to the inside of the fixed frame. The output shaft of the first motor passes through the fixing plate and is fixedly connected with a driving gear. A driven gear is meshed outside the driving gear. There are four groups of driven gears. A connecting sleeve is fixedly sleeved inside each of the four groups of driven gears. One end of the connecting sleeve rotates on the top of the fixing plate. A threaded rod is threadedly connected inside the connecting sleeve. A through hole is opened in the fixing plate. One end of the threaded rod passes through the through hole and slides inside the through hole. A guiding hole is opened at the bottom of the mold cavity. The other end of the threaded rod away from the fixing plate passes through the guiding hole and is rotatably connected with an ejection plate. The ejection plate slides inside the mold cavity.

[0007] As a further description of the above technical solution: The vacuum adsorption component includes a connecting frame. A vacuum pump is fixedly connected to the top of the connecting frame. An air suction port of the vacuum pump is fixedly connected with a connecting pipe. One end of the connecting pipe is fixedly connected with a suction cup. The top of the suction cup is fixedly connected to the bottom of the connecting frame, ensuring the stability of the suction cup. A plurality of adsorption holes are opened at the bottom of the suction cup. A rubber pad is fixedly connected to the bottom of the suction cup, which can increase the friction between the suction cup and the disc casting, prevent the suction cup from sliding after adsorbing the disc casting, and improve the adsorption stability. A pressure sensor is fixedly connected to the inner wall of the suction cup, which can measure the pressure change inside the suction cup in real time, thereby accurately reflecting the adsorption force of the suction cup on the disc casting, preventing the disc casting from falling due to insufficient adsorption force or causing damage to the disc casting due to excessive adsorption force.

[0008] As a further description of the above technical solution: The lifting component includes a fixed shell. The bottom of the fixed shell is fixedly connected to the top of the fixed base. A connecting plate is fixedly connected to one side of the fixed shell. A second motor is fixedly connected to the outside of the connecting plate. The output shaft of the second motor passes through the connecting plate and is fixedly connected with a driving gear. One end of the driving gear rotates inside the connecting plate, ensuring the stability of the driving gear during rotation.

[0009] As a further description of the above technical solution: The lifting assembly further includes a support frame. One end of the support frame is fixedly connected to one side of the connecting frame, and the other end of the support frame slides inside the fixed housing, ensuring the movement path of the support frame. The support frame is in an L shape. A rack is fixedly connected to one side of the support frame. A chute is formed on one side of the fixed housing, and the rack slides inside the chute, ensuring the movement path of the rack. One side of the rack is meshed and connected with a driving gear.

[0010] As a further description of the above technical solution: The support assembly includes a support plate and a guide plate. Connecting blocks are fixedly connected to both sides of the support plate, and support rods are fixedly connected to the bottoms of the connecting blocks, ensuring support stability. The guide plate is fixedly connected to the side of the fixed base. A guide groove is formed at the top of the guide plate, and a guide rod slides inside the guide groove. One end of the guide rod is fixedly connected to the bottom of the support rod, ensuring the stability of the support plate during movement and improving the positioning accuracy of the support plate.

[0011] As a further description of the above technical solution: A controller is connected to the outside of the fixed housing, and the controller is electrically connected to the first motor, the vacuum pump, the pressure sensor, and the second motor.

[0012] As a further description of the above technical solution: A limit block is fixedly connected to one end of the threaded rod. The limit block is located at the bottom of the through hole, and the diameter of the limit block is larger than the diameter of the through hole, which can limit the movement of the threaded rod, prevent the ejector plate from sliding out of the mold cavity, and avoid the disc casting from falling.

[0013] The present invention has the following beneficial effects: In the present invention, through the ejecting assembly, it can ensure that each part of the disc casting receives uniform force during the ejection process, avoid defects such as casting deformation and cracks caused by uneven force, thereby improving the dimensional accuracy and surface quality of the casting, and enhancing the reliability of the ejecting support mechanism for the disc casting mold.

[0014] In the present invention, through the vacuum adsorption assembly, it can adsorb on the surface of the casting with uniform negative pressure and will not generate local pressure on the surface of the casting, thereby avoiding damages such as surface scratches and deformation caused by excessive clamping force, and improving the protection performance of the ejecting support mechanism for the disc casting mold.

[0015] In the present invention, through the support assembly, it can move the casting away from the top of the mold cavity, completely expose the mold cavity, facilitate the staff to quickly clean the residual debris and chips inside the mold cavity, and perform the next casting, improving the operation convenience of the ejecting support mechanism for the disc casting mold. In the present invention, through the lifting assembly, the height of the vacuum adsorption assembly can be precisely controlled, enabling it to accurately reach the designated adsorption position of the disc casting, ensuring perfect fit between the vacuum adsorption assembly and the surface of the disc casting, achieving precise adsorption, and improving the flexibility of the ejecting and supporting mechanism of the mold for disc casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic diagram of the overall structure of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention Figure 1 ; Figure 2 FIG. is a schematic diagram of the overall structure of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention Figure 2 ; Figure 3 FIG. is a schematic diagram of a partial structure of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention Figure 1 ; Figure 4 FIG. is a schematic diagram of a partial structure of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention Figure 2 ; Figure 5 FIG. is a schematic diagram of a partial structure of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention Figure 3 ; Figure 6 FIG. is a sectional view of an ejecting and supporting mechanism of a mold for disc casting proposed by the present invention.

[0017] Legend Explanation: 1, fixed base; 2, mold cavity; 3, fixed frame; 4, ejecting assembly; 5, first motor; 6, fixed plate; 7, driving gear; 8, driven gear; 9, connecting sleeve; 10, threaded rod; 11, through hole; 12, limiting block; 13, guiding hole; 14, ejecting plate; 15, vacuum adsorption assembly; 16, connecting frame; 17, vacuum pump; 18, connecting pipe; 19, suction cup; 20, adsorption hole; 21, rubber pad; 22, pressure sensor; 23, lifting assembly; 24, fixed shell; 25, connecting plate; 26, second motor; 27, driving gear; 28, rack; 29, sliding groove; 30, support frame; 31, controller; 32, support assembly; 33, support plate; 34, connecting block; 35, support rod; 36, guiding plate; 37, guiding groove; 38, guiding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Referring to Figures 1-6 , an embodiment provided by the present invention: a mold ejection support mechanism for casting a disc casting, including a fixed base 1 and a mold cavity 2. A fixed frame 3 is fixedly connected to the outside of the mold cavity 2, and one end of the fixed frame 3 is fixedly connected to the top of the fixed base 1. A lifting assembly 23 and a support assembly 32 for improving the operation convenience are connected to the top of the fixed base 1. One end of the lifting assembly 23 is connected with a vacuum adsorption assembly 15 for facilitating the fixation of the disc casting, and a highly reliable ejection assembly 4 is connected to the bottom of the mold cavity 2; The ejection assembly 4 includes a first motor 5 and a fixing plate 6. The first motor 5 is fixedly connected to the top of the fixed base 1. Both ends of the fixing plate 6 are fixedly connected to the inside of the fixed frame 3. The output shaft of the first motor 5 passes through the fixing plate 6 and is fixedly connected with a driving gear 7. A driven gear 8 is meshed outside the driving gear 7. There are four groups of driven gears 8. A connecting sleeve 9 is fixedly sleeved inside each of the four groups of driven gears 8. One end of the connecting sleeve 9 rotates on the top of the fixing plate 6. A threaded rod 10 is threadedly connected inside the connecting sleeve 9. A through hole 11 is opened inside the fixing plate 6. One end of the threaded rod 10 passes through the through hole 11 and slides inside the through hole 11. A guiding hole 13 is opened at the bottom of the mold cavity 2. The other end of the threaded rod 10 away from the fixing plate 6 passes through the guiding hole 13 and is rotatably connected with an ejection plate 14. The ejection plate 14 slides inside the mold cavity 2.

[0020] The vacuum adsorption assembly 15 includes a connecting frame 16. A vacuum pump 17 is fixedly connected to the top of the connecting frame 16. A connecting pipe 18 is fixedly connected to the suction port of the vacuum pump 17. One end of the connecting pipe 18 is fixedly connected to a suction cup 19. The top of the suction cup 19 is fixedly connected to the bottom of the connecting frame 16, ensuring the stability of the suction cup 19. Multiple adsorption holes 20 are formed in the bottom of the suction cup 19. A rubber pad 21 is fixedly connected to the bottom of the suction cup 19, which can increase the friction between the suction cup 19 and the disc casting, prevent the suction cup 19 from sliding after adsorbing the disc casting, and improve the adsorption stability. A pressure sensor 22 is fixedly connected to the inner wall of the suction cup 19, which can measure the pressure change inside the suction cup 19 in real time, so as to accurately reflect the adsorption force of the suction cup 19 on the disc casting, prevent the disc casting from falling due to insufficient adsorption force or being damaged due to excessive adsorption force. The lifting assembly 23 includes a fixed housing 24. The bottom of the fixed housing 24 is fixedly connected to the top of the fixed base 1. A connecting plate 25 is fixedly connected to one side of the fixed housing 24. A second motor 26 is fixedly connected to the outside of the connecting plate 25. The output shaft of the second motor 26 passes through the connecting plate 25 and is fixedly connected to a driving gear 27. One end of the driving gear 27 rotates inside the connecting plate 25, ensuring the stability of the driving gear 27 during rotation. The lifting assembly 23 further includes a support frame 30. One end of the support frame 30 is fixedly connected to one side of the connecting frame 16. The other end of the support frame 30 slides inside the fixed housing 24, ensuring the movement path of the support frame 30. The support frame 30 is in an L shape. A rack 28 is fixedly connected to one side of the support frame 30. A sliding groove 29 is formed in one side of the fixed housing 24. The rack 28 slides inside the sliding groove 29, ensuring the movement path of the rack 28. One side of the rack 28 is meshed with the driving gear 27. The support assembly 32 includes a support plate 33 and a guide plate 36. Connecting blocks 34 are fixedly connected to both sides of the support plate 33. Support rods 35 are fixedly connected to the bottoms of the connecting blocks 34, ensuring the support stability. The guide plate 36 is fixedly connected to the side of the fixed base 1. A guide groove 37 is formed in the top of the guide plate 36. A guide rod 38 is slidably connected inside the guide groove 37. One end of the guide rod 38 is fixedly connected to the bottom of the support rod 35, ensuring the stability of the support plate 33 during movement and improving the positioning accuracy of the support plate 33. A controller 31 is connected to the outside of the fixed housing 24. The controller 31, the first motor 5, the vacuum pump 17, the pressure sensor 22, and the second motor 26 are all electrically connected. A limiting block 12 is fixedly connected to one end of the threaded rod 10. The limiting block 12 is located at the bottom of the through hole 11. The diameter of the limiting block 12 is larger than the diameter of the through hole 11, which can limit the movement of the threaded rod 10, prevent the ejector plate 14 from sliding out of the mold cavity 2, and avoid the disc casting from falling.

[0021] Working principle: When it is necessary to take out the disc casting, the first motor 5 is started through the controller 31. The first motor 5 drives the driving gear 7 to rotate, the driving gear 7 drives the driven gear 8 to rotate, the rotation of the driven gear 8 drives the connecting sleeve 9 to rotate, and the rotation of the connecting sleeve 9 drives the threaded rod 10 to move upward. One end of the threaded rod 10 slides inside the through hole 11, and at the same time the other end of the threaded rod 10 slides inside the guiding hole 13, ensuring the movement path of the threaded rod 10 and driving the ejector plate 14 to move upward. Thus, the ejector plate 14 ejects the disc casting, improving the reliability. Then, the second motor 26 is controlled to start through the controller 31. The second motor 26 drives the driving gear 27 to rotate, the rotation of the driving gear 27 drives the rack 28 to slide inside the sliding groove 29, and the rack 28 drives the support frame 30 to slide inside the fixed housing 24. Thus, the support frame 30 drives the connecting frame 16 to move downward, and the connecting frame 16 drives the suction cup 19 to approach the disc casting. At this time, the controller 31 controls the vacuum pump 17 to start. The vacuum pump 17 extracts the air inside the suction cup 19 through the connecting pipe 18, creating a negative pressure environment inside the suction cup 19. Since the air pressure outside the suction cup 19 is greater than the internal air pressure, under the action of the pressure difference, air will rush into the suction cup 19 from the adsorption holes 20, and at the same time press the disc casting tightly against the suction cup 19, thereby realizing the adsorption and fixation of the disc casting. And during the adsorption process, the pressure sensor 22 can monitor the pressure change inside the suction cup 19 in real time, convert the pressure change into an electrical signal and transmit it to the controller 31. The controller 31 analyzes and processes these signals according to the preset pressure threshold, and automatically adjusts the power of the vacuum pump 17 to ensure that the adsorption force always remains within an appropriate range. Finally, the support rod 35 is pushed. The support rod 35 drives the guide rod 38 to slide inside the guide groove 37, and at the same time the support rod 35 drives the support plate 33 to move through the connecting block 34. When the guide rod 38 slides to one end of the guide groove 37, the support plate 33 is exactly below the suction cup 19. The controller 31 controls the lifting assembly 23 to make the suction cup 19 drive the disc casting to descend. The controller 31 controls the vacuum adsorption assembly 15 to release the disc casting, places the disc casting on the support plate 33, moves the support assembly 32, moves the disc casting away from the top of the mold cavity 2, exposes the mold cavity 2, facilitates the cleaning of the inside of the mold cavity 2, and prepares for the next casting, improving the operation convenience.

[0022] All the electrical components appearing in this article are electrically connected to the external main controller and the 220V mains. And the main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operation means adopted are consistent with the parameters of market instruments.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mold ejection support mechanism for casting a disc casting, comprising a fixed base (1) and a mold cavity (2), wherein a fixed frame (3) is fixedly connected to the outside of the mold cavity (2), and one end of the fixed frame (3) is fixedly connected to the top of the fixed base (1), characterized in that: A lifting component (23) and a support component (32) are connected to the top of the fixed base (1). One end of the lifting component (23) is connected with a vacuum adsorption component (15), and a top-out component (4) is connected to the bottom of the mold cavity (2). The top-out component (4) includes a first motor (5) and a fixing plate (6). The first motor (5) is fixedly connected to the top of the fixed base (1). Both ends of the fixing plate (6) are fixedly connected to the inside of the fixing frame (3). The output shaft of the first motor (5) passes through the fixing plate (6) and is fixedly connected with a driving gear (7). A driven gear (8) is meshed on the outside of the driving gear (7). There are four groups of the driven gears (8). A connecting sleeve (9) is fixedly sleeved inside each of the four groups of the driven gears (8). One end of the connecting sleeve (9) rotates on the top of the fixing plate (6). A threaded rod (10) is connected to the inside of the connecting sleeve (9) in a threaded manner. A through hole (11) is formed in the fixing plate (6). One end of the threaded rod (10) passes through the through hole (11) and slides inside the through hole (11). A guiding hole (13) is formed in the bottom of the mold cavity (2). The other end of the threaded rod (10) far away from the fixing plate (6) passes through the guiding hole (13) and is rotatably connected with a top-out plate (14). The top-out plate (14) slides inside the mold cavity (2).

2. The ejecting and supporting mechanism for the mold of a disc casting according to claim 1, characterized in that: The vacuum adsorption component (15) includes a connecting frame (16). A vacuum pump (17) is fixedly connected to the top of the connecting frame (16). A connecting pipe (18) is fixedly connected to the suction port of the vacuum pump (17). One end of the connecting pipe (18) is fixedly connected with a suction cup (19). The top of the suction cup (19) is fixedly connected to the bottom of the connecting frame (16). A plurality of adsorption holes (20) are formed in the bottom of the suction cup (19). A rubber pad (21) is fixedly connected to the bottom of the suction cup (19). A pressure sensor (22) is fixedly connected to the inner wall of the suction cup (19).

3. The ejection support mechanism for the mold used in casting a disc casting according to claim 1, wherein: The lifting component (23) includes a fixed shell (24). The bottom of the fixed shell (24) is fixedly connected to the top of the fixed base (1). A connecting plate (25) is fixedly connected to one side of the fixed shell (24). A second motor (26) is fixedly connected to the outside of the connecting plate (25). The output shaft of the second motor (26) passes through the connecting plate (25) and is fixedly connected with a driving gear (27). One end of the driving gear (27) rotates inside the connecting plate (25).

4. The ejection support mechanism for the mold of a disc casting according to claim 3, characterized in that: The lifting component (23) further includes a support frame (30). One end of the support frame (30) is fixedly connected to one side of the connecting frame (16). The other end of the support frame (30) slides inside the fixed shell (24). The shape of the support frame (30) is L-shaped. A rack (28) is fixedly connected to one side of the support frame (30). A sliding groove (29) is formed in one side of the fixed shell (24). The rack (28) slides inside the sliding groove (29). One side of the rack (28) is meshed with the driving gear (27).

5. The ejection support mechanism for the mold of a disc casting according to claim 1, characterized in that: The support assembly (32) includes a support plate (33) and a guide plate (36). Connecting blocks (34) are fixedly connected to both sides of the support plate (33). A support rod (35) is fixedly connected to the bottom of the connecting block (34). The guide plate (36) is fixedly connected to the side of the fixed base (1). A guide groove (37) is formed at the top of the guide plate (36). A guide rod (38) is slidably connected inside the guide groove (37). One end of the guide rod (38) is fixedly connected to the bottom of the support rod (35).

6. The ejection and support mechanism for the mold of the disc casting according to claim 3, characterized in that: A controller (31) is connected to the outside of the fixed shell (24). The controller (31), the first motor (5), the vacuum pump (17), the pressure sensor (22), and the second motor (26) are all electrically connected to each other.

7. The ejection and support mechanism for the mold used in casting a disc casting according to claim 1, characterized in that: A limiting block (12) is fixedly connected to one end of the threaded rod (10). The limiting block (12) is located at the bottom of the through hole (11). The diameter of the limiting block (12) is larger than the diameter of the through hole (11).

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