A core continuous stamping forming device for differential casting
By designing a continuous stamping and forming device for differential casting, the continuous stamping and forming of the core is achieved by using alternating mold cavity and conveying mechanism, the problem of time-consuming stamping and processing cycle steps in the prior art is solved, and the processing efficiency and quality are improved.
Patent Information
- Application Number
- CN202420780167.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The stamping processing of existing differential casting cores requires the cyclic steps of sand core feeding, stamping forming, demolding, unloading and feeding, resulting in time-consuming unloading and feeding, affecting the continuity of stamping processing.
A continuous stamping forming device for differential casting is designed. By setting two mold cavity on the movable mounting base, loading, stamping and demolding are performed alternately, and continuous stamping forming of the core is achieved using a screw conveying mechanism and a hydraulic cylinder.
The continuous stamping forming of the mold core for differential casting is realized, which improves processing efficiency and quality, reduces the time for unloading and feeding, and ensures the continuity of stamping processing.
Smart Images
Figure CN222695956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of differential casting equipment, in particular to a core continuous stamping forming device for differential casting. Background Art
[0002] The differential is a device used in the automobile transmission system. Its main function is to balance the speed difference between the wheels when the vehicle turns, thereby ensuring smooth steering and improving driving stability. The differential includes multiple parts such as gears, bearings, and housings. These parts need to be processed and formed through casting, forging, turning, milling, grinding, and other processes.
[0003] When the existing differential is cast, a cavity or a complex geometric shape part is formed inside the casting through a core, wherein a core making machine is used to compact sand (such as resin sand, water glass sand, etc.) into a core of a desired shape, or a metal core is used. When a sand core is used to make the core, a stamping device is used to make the sand core into a core of a desired shape. However, the current stamping process of the core mainly includes a cycle of sand core feeding, stamping molding, demolding, unloading, and feeding to complete the continuous stamping process. During operation, unloading and feeding will delay time and affect the continuity of the stamping process. Utility Model Content
[0004] The purpose of the utility model is to provide a continuous stamping and forming device for differential casting cores, so as to solve the problem raised by the above-mentioned background technology that the stamping processing of differential casting cores on the current market mainly includes the cyclic steps of sand core feeding, stamping and forming, demolding, unloading and feeding to complete the continuous stamping process. During operation, unloading and feeding will delay time and affect the continuity of the stamping processing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous stamping and forming device for a core of a differential casting, comprising a stamping and forming device body, a movable mounting seat is provided on the stamping and forming device body, and a molding mold cavity is symmetrically opened in the movable mounting seat, and a center column integrally formed with the movable mounting seat is also provided in the molding mold cavity, a stamping platform is provided on the stamping and forming device body, and a rectangular through hole is opened on the stamping platform, matching screw transmission mechanisms are symmetrically installed on both sides of the long side of the through hole on the stamping platform, and the screw transmission mechanism is movably connected to the movable mounting seat through a threaded structure, so that the movable mounting seat can move on the stamping platform, push plates are symmetrically provided on the upper side of the stamping platform, and connecting plates are connected to the side of the push plates, and a sand core feed pipe is passed through and fixed on the connecting plate, so that the push plate and the sand core feed pipe can move synchronously.
[0006] Preferably, the main body of the stamping forming device is provided with a fixed top plate in the middle above the stamping table, and a hydraulic cylinder is installed on the fixed top plate, and support columns are evenly connected between the fixed top plate and the stamping table, a lifting mounting plate is movably fixed through the support columns, and a stamping die is installed at the lower end of the lifting mounting plate, and the upper end of the lifting mounting plate is fixed to the piston part of the hydraulic cylinder.
[0007] Preferably, the connecting plate is an L-shaped structure, and a push cylinder is bolted to the connecting plate, and the push cylinder is fixed to the side of the stamping table by bolts.
[0008] Preferably, a conveyor belt is symmetrically provided on the side of the stamping table, and the feeding end of the conveyor belt is clamped relative to the stamping table, and the conveyor belt corresponds to the position of the push plate respectively, a support and limit plate is provided under the stamping table, and a base is provided under the support and limit plate, and a side mounting plate is fixed between the support and limit plate, the stamping table and the base through guide columns and bolts respectively.
[0009] Preferably, the support and limit plate is supported below the screw conveying mechanism and the movable mounting seat, and a through hole is opened on the support and limit plate. A demoulding cylinder is symmetrically installed at the through hole of the support and limit plate below the movable mounting seat, and a demoulding limit rod is fixed to the movable end of the demoulding cylinder through a connecting plate.
[0010] Preferably, the upper end of the demoulding limiting rod passes through the bottom of the movable mounting seat and is then bolted to a demoulding plate, and the demoulding plate is clamped with the molding mold cavity and the center column.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the differential casting core continuous stamping molding device realizes the continuous stamping molding processing of the differential casting core by arranging two molding mold cavities on a reciprocating movable mounting seat, alternately performing feeding, stamping and demoulding processing, and effectively improving the processing efficiency and quality of the differential casting core, thereby ensuring the casting quality of the differential. The differential casting core continuous stamping molding device is provided with a demoulding cylinder at the lower end of the movable mounting seat, and the demoulding cylinder operates the demoulding limit rod to drive the demoulding plate to move, so that the demoulding plate can push out the core stamped and formed in the molding mold cavity, and after pushing out the core, the sand core is quickly loaded and fed, realizing efficient continuous stamping processing of the core. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a top view of the connection structure between the movable mounting seat and the stamping table of a core continuous stamping forming device for differential casting of the utility model;
[0013] Figure 2 This is a side view of a continuous stamping and forming device for a differential casting core of the utility model;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of a continuous stamping and forming device for a differential casting core of the utility model;
[0015] Figure 4 This utility model is a core continuous stamping forming device for differential casting Figure 3 Enlarged structural diagram at A in the middle.
[0016] In the figure: 1. stamping and forming device body; 2. sand core feed pipe; 3. connecting plate; 4. screw conveying mechanism; 5. support limit plate; 6. forming mold cavity; 7. movable mounting seat; 8. support column; 9. stamping table; 10. push plate; 11. demoulding plate; 12. center column; 13. conveyor belt; 14. stamping mold; 15. hydraulic cylinder; 16. fixed top plate; 17. push cylinder; 18. side mounting plate; 19. lifting mounting plate; 20. base; 21. demoulding cylinder; 22. demoulding limit rod. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4The utility model provides a technical solution: a continuous stamping and forming device for differential casting core, including a stamping and forming device body 1, a movable mounting seat 7 is provided on the stamping and forming device body 1, and a forming mold cavity 6 is symmetrically opened in the movable mounting seat 7, and a center column 12 integrally formed with the movable mounting seat 7 is also provided in the forming mold cavity 6, a stamping table 9 is provided on the stamping and forming device body 1, and a rectangular through hole is opened on the stamping table 9, a fixed top plate 16 is provided on the middle part above the stamping table 9 of the stamping and forming device body 1, and a hydraulic cylinder 15 is installed on the fixed top plate 16, and support columns 8 are evenly connected between the fixed top plate 16 and the stamping table 9, and a lifting mounting plate 19 is fixed and movably penetrated between the support columns 8, and the lower end of the lifting mounting plate 19 A stamping die 14 is installed, and the upper end of the lifting mounting plate 19 is fixed to the piston part of the hydraulic cylinder 15. When the stamping forming device body 1 is used to stamp the core, this structure allows the hydraulic cylinder 15 to be installed and positioned under the fixed top plate 16, and the stamping die 14 is lifted and driven by the lifting mounting plate 19. The stamping process is performed by the cooperation of the stamping die 14 and the forming die cavity 6. Two forming die cavities 6 are set, and alternate loading, stamping and unloading processes can be performed to achieve continuous stamping forming of the core for differential casting. The support column 8 makes the fixed top plate 16 stable relative to the stamping table 9. The two sides of the long side of the through hole on the stamping table 9 are symmetrically installed with matching screw transmission mechanisms 4, and the screw transmission mechanism 4 and the movable mounting seat 7 are movable through a threaded structure. The movable connection allows the movable mounting seat 7 to move on the punching table 9. A push plate 10 is symmetrically arranged on the side above the punching table 9, and a connecting plate 3 is connected to the side of the push plate 10. A conveyor belt 13 is symmetrically arranged on the side of the punching table 9, and the feeding end of the conveyor belt 13 is clamped relative to the punching table 9, and the conveyor belt 13 corresponds to the position of the push plate 10 respectively. A support limit plate 5 is provided below the punching table 9, and a base 20 is provided below the support limit plate 5, and a side mounting plate 18 is fixed between the support limit plate 5 and the punching table 9 and the base 20 respectively through guide columns and bolts. The conveyor belt 13 of this structure is an existing belt conveyor, which is driven by a motor-driven roller to drive the belt transmission, so that the stamped core can enter the next processing step to realize the casting processing of the differential. The support and limit plate 5 is supported under the screw conveying mechanism 4 and the movable mounting seat 7, and a through hole is opened on the support and limit plate 5. A demoulding cylinder 21 is symmetrically installed at the through hole of the support and limit plate 5 under the movable mounting seat 7, and a demoulding limit rod 22 is fixed to the movable end of the demoulding cylinder 21 through a connecting plate. In this structure, the screw conveying mechanism 4 is synchronously transmitted through the cooperation of the pulley, the belt and the motor, so that the movable mounting seat 7 can reciprocate on the stamping table 9 to realize the feeding, stamping and demoulding operations, and alternately perform the feeding and demoulding processes. The upper end of the demoulding limit rod 22 passes through the bottom of the movable mounting seat 7 and is bolted with a demoulding plate 11, and the demoulding plate 11 is clamped with the forming mold cavity 6 and the center column 12. When the demoulding cylinder 21 is started,The demoulding limit rod 22 can be raised and lowered, and the demoulding limit rod 22 can lift and lower the demoulding plate 11 under the limit of the movable mounting seat 7, so as to realize the demoulding of the molding core by the demoulding plate 11, and realize the continuous stamping molding of the core, and the sand core feed pipe 2 is fixed through the connecting plate 3, so that the push plate 10 and the sand core feed pipe 2 can move synchronously, the connecting plate 3 is an L-shaped structure, and the push cylinder 17 is bolted on the connecting plate 3, and the push cylinder 17 is fixed to the side of the stamping table 9 by bolts. This structure can start the push cylinder 17 under the stable installation and positioning of the stamping table 9, so that the push cylinder 17 can move the connecting plate 3 horizontally, so that the connecting plate 3 pushes the push plate 10, pushes the demoulded core to the conveyor belt 13, and moves the sand core feed pipe 2 to the molding mold cavity 6, so as to realize the feeding control of the sand core, and the sand core feed pipe 2 is controlled by the sand core feeding system.
[0019] Working principle: When using the differential casting core continuous stamping molding device, firstly, the position of the movable mounting seat 7 on the stamping table 9 is controlled by the screw conveying mechanism 4, so that one of the molding mold cavities 6 corresponds to the position of the sand core feeding tube 2, and then the pushing cylinder 17 is started, and the pushing cylinder 17 is allowed to push the connecting plate 3 to move, so that the sand core feeding tube 2 moves to the top of the molding mold cavity 6, and the sand core feeding system is used to control the sand core feeding. After the feeding is completed, the movable mounting seat 7 is controlled to move by the screw conveying mechanism 4, so that the molding mold cavity 6 filled with the sand core moves to the bottom of the stamping mold 14. At this time, the molding mold cavity 6 on the other side corresponds to the position of the sand core feeding tube 2 on the other side, and the molding mold cavity 6 is filled with sand cores in the same way. At the same time, the hydraulic cylinder 15 is started, so that the lifting mounting plate 19 drives the stamping mold 14 to move downward under the limit guide of the support column 8, and the stamping mold 14 enters the molding mold cavity 6, and the core is stamped through the cooperation of the center column 12 to complete. After stamping, the stamping die 14 returns to its original position, and then the demoulding cylinder 21 drives the demoulding limit rod 22 to push the demoulding plate 11 downward, so that the demoulding plate 11 pushes the formed core out of the molding die cavity 6, completing the demoulding process of the core. At the same time, the screw conveying mechanism 4 is started again, so that the formed core moves to the push plate 10, and the molding die cavity 6 filled with the sand core moves to the bottom of the stamping die 14, completing the alternating feeding, stamping and demoulding and unloading process, and the push cylinder 17 is started again. When moving, the push plate 10 pushes the demoulding core to the conveyor belt 13, and the demoulding cylinder 21 returns the demoulding plate 11 to its original position, and then the sand core can be fed. The support limit plate 5 plays a bottom support role for the screw conveying mechanism 4 and the movable mounting seat 7. The support column 8 makes the fixed top plate 16 stable relative to the stamping table 9. The support limit plate 5 is stable relative to the stamping table 9 and the base 20 through the side mounting plate 18, so that the stamping molding device body 1 can work reliably, thereby completing a series of tasks.
[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A continuous stamping and forming device for differential casting core, comprising a stamping and forming device body (1), characterized in that: The main body (1) of the punching and forming device is provided with a movable mounting seat (7), and a forming mold cavity (6) is symmetrically opened in the movable mounting seat (7), and a center column (12) formed integrally with the movable mounting seat (7) is also respectively provided in the forming mold cavity (6). The main body (1) of the punching and forming device is provided with a punching table (9), and a rectangular through hole is opened in the punching table (9). Matching screw conveying mechanisms (4) are symmetrically installed on both sides of the long sides of the through hole on the punching table (9), and the screw conveying mechanism (4) and the movable mounting seat (7) are movably connected through a threaded structure, so that the movable mounting seat (7) can move on the punching table (9). Pushing plates (10) are symmetrically arranged on the upper side of the punching table (9), and the side of the pushing plate (10) is connected to a connecting plate (3), and a sand core feeding pipe (2) is passed through and fixed on the connecting plate (3), so that the pushing plate (10) and the sand core feeding pipe (2) can move synchronously.
2. A differential casting core continuous stamping device according to claim 1, characterized in that: The main body (1) of the stamping and forming device is provided with a fixed top plate (16) in the middle above the stamping platform (9), and a hydraulic cylinder (15) is installed on the fixed top plate (16), and support columns (8) are evenly connected between the fixed top plate (16) and the stamping platform (9), and a lifting installation plate (19) is movably passed through and fixed between the support columns (8), and a stamping die (14) is installed at the lower end of the lifting installation plate (19), and the upper end of the lifting installation plate (19) is fixed to the piston part of the hydraulic cylinder (15).
3. The continuous stamping forming device for differential casting core according to claim 1, characterized in that: The connecting plate (3) is an L-shaped structure, and a push cylinder (17) is bolted to the connecting plate (3), and the push cylinder (17) is bolted to the side of the punching table (9).
4. A differential casting core continuous stamping device according to claim 3, characterized in that: A feed belt (13) is symmetrically arranged on the side of the punching platform (9), and the feeding end of the feed belt (13) is clamped relative to the punching platform (9), and the feed belt (13) corresponds to the position of the push plate (10), respectively. A support limit plate (5) is arranged below the punching platform (9), and a base (20) is arranged below the support limit plate (5), and a side mounting plate (18) is fixed between the support limit plate (5), the punching platform (9) and the base (20) through guide columns and bolts.
5. A differential casting core continuous stamping device according to claim 4, characterized in that: The support and limit plate (5) is supported below the screw conveying mechanism (4) and the movable mounting seat (7), and a through hole is provided on the support and limit plate (5). A demoulding cylinder (21) is symmetrically installed below the movable mounting seat (7) at the through hole of the support and limit plate (5), and a demoulding limit rod (22) is fixed to the movable end of the demoulding cylinder (21) via a connecting plate.
6. A differential casting core continuous stamping device according to claim 5, characterized in that: The upper end of the demoulding limiting rod (22) passes through the bottom of the movable mounting seat (7), and a demoulding plate (11) is fixed by bolts thereto. The demoulding plate (11) is clamped with the molding die cavity (6) and the center column (12).