A casting device for an engine main bearing cap

Abstract

The application discloses a pouring device for an engine main bearing cover, which comprises a mounting frame, a conveying table is arranged at the bottom of the inner side of the mounting frame, mounting grooves are arranged at the two sides of the top of the inner side of the mounting frame, two groups of mounting frames are arranged at the top of the inner side of the mounting frame, and the bottom of the mounting frame is provided with a pouring bin, the top of the mounting frame is provided with a feeding pipe, the feeding pipe extends to the inside of the pouring bin and is provided with a storage bin in communication with each other, and the bottom of the storage bin is provided with a control valve; through the lifting cooperation of the stirring pouring mechanism, an additional extension structure can be formed under the pouring opening of the pouring pipe, so that the metal solution can be guided to pour through the structure extension of the extension pipe, the sputtering of the metal solution in the pouring process is avoided, the heater is arranged in the middle section of the pouring pipe body by utilizing the extension of the extension pipe, the pouring pipe wall is heated, the flowability of the solution is promoted, and the solution is prevented from adhering to the inner wall of the pipe body.

Description

Technical Field

[0001] This invention relates to the field of casting technology, specifically to a casting device for an engine main bearing cap. Background Technology

[0002] The car engine is the device that provides power to the car. It is the heart of the car and determines the car's power, economy, stability and environmental performance. Depending on the power source, car engines can be divided into diesel engines, gasoline engines, electric motors for electric vehicles and hybrid power, etc. The main bearing of a car engine refers to the bearing that supports the crankshaft inside the engine. Patent CN211758426U discloses a casting mechanism for an automotive engine main bearing cap. This device mainly consists of a casting ladle, a support frame, and a fixing block. A magnet is fixedly installed in the center of the fixing block's inner cavity, allowing the casting ladle to be positioned by the support frame and fixing block during the casting process, thus improving casting accuracy. It also includes a heating groove and a heating coil, with wires fixedly connected to the top of a power switch and the bottom of the heating coil, allowing the heating coil to be heated by the power switch. A temperature sensor is fixedly installed at the bottom of the heating coil's inner cavity, enabling precise control of the temperature of the molten metal inside the casting ladle, thereby improving casting efficiency. However, in actual use, the device still has the following drawbacks: The aforementioned patent mainly uses a heating structure to heat and control the temperature of the poured molten metal, which makes it easy to precisely control the molten metal. However, during actual pouring, the molten metal often splashes due to height differences. At the same time, when the molten metal hardens due to insufficient heating, uneven flow may occur in the pouring pipe, reducing the fluidity of the molten metal and decreasing the working accuracy and quality of the engine main bearing cover pouring. In addition, the poured bearing cover is not easy to automatically align with the pouring port during transportation, increasing the inconvenience of adjustment and reducing the functionality of the device and the working efficiency of the actual pouring operation. Summary of the Invention

[0003] The purpose of this invention is to provide a casting device for an engine main bearing cap to solve the related problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a casting device for an engine main bearing cover, comprising a mounting frame, a conveying platform at the bottom of the inner side of the mounting frame, mounting grooves on both sides of the top of the inner side of the mounting frame, two sets of mounting frames on the top of the inner side of the mounting frame, a casting chamber at the bottom of the mounting frame, a feed pipe at the top of the mounting frame extending into the interior of the casting chamber and having interconnected storage silos, a control valve at the bottom of the storage silos, and interconnected casting pipes at the bottom of the control valve, a lifting cylinder on one side inside the casting chamber, a stirring casting mechanism at the output end of the lifting cylinder, a calibration and positioning mechanism at the bottom of both sides of the inner side of the mounting frame, and a temperature control system inside the two sets of mounting grooves; The stirring-type casting mechanism includes a lifting chamber, a drive motor, a gear, an external gear ring, an annular guide groove, an annular turntable, stirring rods, an extension tube, and a heater. The output end of the lifting cylinder is equipped with a lifting chamber. An extension tube is provided in the middle of the lifting chamber, and the extension tube is sleeved on the outside of the casting tube and slidably engaged. An annular guide groove is installed at the bottom of the lifting chamber. An annular turntable with slidable engagement is provided on the inner side of the annular guide groove. A drive motor is installed at the top of one side of the lifting chamber. A gear is provided at the output end of the drive motor. An external gear ring that meshes with the gear is provided on the outer side of the annular turntable. Heaters are symmetrically installed in the middle of the inner side of the annular turntable. Four sets of stirring rods are provided at the bottom of the inner side of the annular turntable, and the stirring rods extend to the inner side of the extension tube.

[0005] Preferably, the calibration and positioning mechanism includes a clamping plate, an internally threaded sleeve, a mounting groove, a guide rail, a lead screw, a bevel gear set, and a servo motor. Two sets of mounting grooves are provided, installed on both sides of the bottom inner side of the mounting frame. A servo motor is located at the top of each of the two sets of mounting grooves. A bevel gear set is fitted on the outer side of each of the two sets of mounting grooves, and a threaded internally threaded sleeve is fitted on the outer side of each of the two sets of bevel gear sets. A clamping plate is installed on the inner side of each of the two sets of internally threaded sleeves, which are close to each other. A guide rail is provided at the bottom of each of the two sets of mounting grooves, and the guide rail is in a limiting fit with the internally threaded sleeve. Meshing bevel gear sets are provided at the output ends of the two sets of servo motors and on the outer side of the lead screw.

[0006] Preferably, the temperature control system includes an air inlet, an air guide pipe, a heating device, and an exhaust fan. One set of the mounting slots is equipped with an air inlet, and the other set of the mounting slots is equipped with an exhaust fan. The air inlet and the exhaust fan are each equipped with an air guide pipe that communicates with the storage bin on the side closest to each other. The bottom of one side of the casting bin is equipped with a heating device, and the heating device extends into the interior of the storage bin and heats it.

[0007] Preferably, the mounting bracket has ventilation openings on both sides of its top, and the inner side of the ventilation openings is provided with a dustproof net, and the two sets of mounting slots are connected to the ventilation openings.

[0008] Preferably, a telescopic guide rod is provided on one side of the top of the casting chamber, and the telescopic guide rod is connected to the lifting chamber. The feed pipe, the storage silo, the control valve, and the casting pipe are arranged vertically and connected to each other. A temperature display is provided on one end of the front of the casting chamber.

[0009] Preferably, an annular opening is provided on the inner side of the extension tube, the two sets of heaters rotate and move inside the annular opening, and the lifting chamber and the extension tube slide up and down outside the casting tube.

[0010] Preferably, the annular turntable drives four sets of stirring rods and two sets of heaters to rotate inside the extension tube. The bottom of the extension tube is provided with a pouring port, which is set in a conical structure.

[0011] Preferably, the outer sides of the two sets of clamping plates are provided with anti-slip textures, and the horizontal displacement of the two sets of clamping plates is controlled by an internal threaded sleeve.

[0012] Preferably, the inner sides of the two sets of guide rails are provided with guide blocks, and the guide blocks are connected to the internal threaded sleeve.

[0013] Preferably, the exhaust fan is connected to the storage silo via a set of air guide pipes, and the air inlet is connected to the storage silo via another set of air guide pipes and is equipped with a one-way valve.

[0014] Compared with the prior art, the present invention provides a casting device for an engine main bearing cap, which has the following advantages: 1. This invention, through the lifting and lowering coordination of the stirring-type pouring mechanism, can form an additional extension structure below the pouring port of the pouring tube. This extension allows for the guiding and pouring of the molten metal, preventing splashing during the pouring process. Simultaneously, the extension allows the heater to be positioned in the middle section of the pouring tube, heating the tube wall and promoting solution flow, preventing the solution from adhering to the inner wall of the tube. Furthermore, the movement of four stirring rods at the tail end of the tube further promotes the flow rate of the solution, preventing poor flow and uneven pouring, thus improving the pouring accuracy and efficiency of the device.

[0015] 2. This invention utilizes the conveying mechanism of the conveyor table to automatically calibrate the main bearing cover of the engine to be poured under the clamping and positioning structure of the calibration and positioning mechanism. This ensures that the main bearing cover is centered and perpendicular to the pouring port of the pouring pipe. At the same time, the fixed fit of the positioning structure prevents the main bearing cover from shifting position during pouring, thereby increasing the accuracy and quality of the pouring device in actual use.

[0016] 3. Through the structural coordination of the temperature control system, the present invention can control the temperature inside the storage silo, thereby using the heating structure to prevent the metal solution inside the storage silo from being poured if the temperature is not up to standard. In addition, the exhaust ventilation structure improves the cooling effect of the storage silo, so as to achieve temperature control of the device and improve the pouring efficiency of the metal solution. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a schematic diagram of the stirring-type casting mechanism of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A; Figure 5 This is a top sectional view of the annular turntable of the present invention.

[0018] In the diagram: 1. Mounting frame; 2. Conveying table; 3. Calibration and positioning mechanism; 301. Clamping plate; 302. Internal threaded sleeve; 303. Mounting groove; 304. Guide rail; 305. Lead screw; 306. Bevel gear set; 307. Servo motor; 4. Mounting groove; 5. Temperature control system; 501. Air inlet; 502. Air guide pipe; 503. Heating device; 504. Exhaust fan; 6. Feed pipe; 7. Mounting frame; 8. Casting bin; 9. Stirring casting mechanism; 901. Lifting bin; 902. Drive motor; 903. Gear; 904. External gear ring; 905. Annular guide groove; 906. Annular turntable; 907. Stirring rod; 908. Extension pipe; 909. Heater; 10. Casting pipe; 11. Lifting cylinder; 12. Storage bin. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-5The present invention provides a technical solution: a casting device for an engine main bearing cover, including a mounting frame 1, a conveying platform 2 at the bottom of the inner side of the mounting frame 1, mounting grooves 4 on both sides of the top of the inner side of the mounting frame 1, two sets of mounting frames 7 on the top of the inner side of the mounting frame 1, a casting chamber 8 at the bottom of the mounting frame 7, a feed pipe 6 at the top of the mounting frame 1, the feed pipe 6 extending into the interior of the casting chamber 8 and having interconnected storage chambers 12, a control valve at the bottom of the storage chamber 12, and a casting pipe 10 interconnected at the bottom of the control valve, a lifting cylinder 11 on one side inside the casting chamber 8, a stirring casting mechanism 9 at the output end of the lifting cylinder 11, a calibration and positioning mechanism 3 at the bottom of both sides of the inner side of the mounting frame 1, and a temperature control system 5 inside the two sets of mounting grooves 4. The stirring-type casting mechanism 9 includes a lifting chamber 901, a drive motor 902, a gear 903, an external gear ring 904, an annular guide groove 905, an annular turntable 906, a stirring rod 907, an extension tube 908, and a heater 909. The lifting chamber 901 is located at the output end of the lifting cylinder 11. An extension tube 908 is located in the middle of the lifting chamber 901 and is fitted onto the outside of the casting pipe 10 in a sliding fit. An annular guide groove 905 is installed at the bottom of the lifting chamber 901. The inner side of the guide groove 905 is provided with a slidingly fitted annular turntable 906. A drive motor 902 is installed on the top of one side of the lifting chamber 901. A gear 903 is provided at the output end of the drive motor 902. An external gear ring 904 that meshes with the gear 903 is provided on the outer side of the annular turntable 906. A heater 909 is symmetrically installed at the middle position of the inner side of the annular turntable 906. Four sets of stirring rods 907 are provided at the bottom of the inner side of the annular turntable 906, and the stirring rods 907 extend to the inner side of the extension tube 908.

[0021] As a preferred embodiment, the calibration and positioning mechanism 3 includes a clamping plate 301, an internal threaded sleeve 302, a mounting groove 303, a guide rail 304, a lead screw 305, a bevel gear set 306, and a servo motor 307. Two sets of mounting grooves 303 are provided, installed on both sides of the bottom inner side of the mounting frame 1. A servo motor 307 is provided at the top of each set of mounting grooves 303. A bevel gear set 306 is fitted on the side of each set of mounting grooves 303 that is far apart from each other. An internal threaded sleeve 302 with matching threads is fitted on the outer side of each set of bevel gear sets 306. A clamping plate 301 is installed on the side of each set of internal threaded sleeves 302 that is close to each other. A guide rail 304 is provided at the bottom inside each set of mounting grooves 303, and the guide rail 304 is in a limiting fit with the internal threaded sleeve 302. The output ends of the two sets of servo motors 307 and the outer side of the lead screw 305 are provided with meshing bevel gear sets 306.

[0022] As a preferred embodiment, the temperature control system 5 includes an air inlet 501, an air guide pipe 502, a heating device 503, and an exhaust fan 504. An air inlet 501 is provided inside one set of mounting slots 4, and an exhaust fan 504 is provided inside another set of mounting slots 4. An air guide pipe 502 communicating with the storage bin 12 is provided on the side of the air inlet 501 and the exhaust fan 504 that are close to each other. A heating device 503 is provided at the bottom of one side of the inside of the casting bin 8, and the heating device 503 extends into the inside of the storage bin 12 and heats it.

[0023] As a preferred embodiment, the mounting bracket 1 has ventilation openings on both sides of its top, and a dustproof net is provided on the inner side of the ventilation openings. The two sets of mounting slots 4 are connected to the ventilation openings, which facilitates the use of external airflow to cool the internal molten metal.

[0024] As a preferred embodiment, a telescopic guide rod is provided on one side of the top of the casting chamber 8, and the telescopic guide rod is connected to the lifting chamber 901. The feed pipe 6, the storage chamber 12, the control valve, and the casting pipe 10 are arranged vertically and connected to each other. A temperature display is provided at one end of the front of the casting chamber 8. By setting the temperature display, the temperature inside the storage chamber 12 can be intelligently detected, making it easy for operators to observe and adjust it.

[0025] As a preferred embodiment, an annular opening is provided on the inner side of the extension tube 908, and two sets of heaters 909 rotate and move inside the annular opening. The lifting chamber 901 and the extension tube 908 slide up and down outside the casting tube 10, causing the heaters 909 to rotate inside the annular opening, quickly heating the inner wall of the tube and promoting the flow of the molten metal.

[0026] As a preferred embodiment, the annular turntable 906 drives four sets of stirring rods 907 and two sets of heaters 909 to rotate inside the extension tube 908. The bottom of the extension tube 908 is provided with a pouring port, which is set in a conical structure to improve the pouring accuracy of the pouring port and improve the pouring quality of the main bearing cover.

[0027] As a preferred embodiment, the outer sides of the two sets of clamping plates 301 are provided with anti-slip textures. The horizontal displacement of the two sets of clamping plates 301 is controlled by the internal threaded sleeve 302, which improves the clamping force and anti-slip properties of the clamping plates 301 and facilitates automatic centering and positioning of the main bearing cover.

[0028] As a preferred embodiment, the inner sides of the two sets of guide rails 304 are provided with guide blocks, and the guide blocks are connected to the internal threaded sleeve 302 to increase the guiding function of the structure and the adjustment function of horizontal displacement.

[0029] As a preferred embodiment, the exhaust fan 504 is connected to the storage silo 12 through a set of air guide pipes 502, and the air inlet 501 is connected to the storage silo 12 through another set of air guide pipes 502 and is equipped with a one-way valve to facilitate the introduction of external airflow into the storage silo 12 for cooling.

[0030] Example 1, such as Figure 1-2 As shown, a temperature sensor is installed to detect the internal temperature of the storage silo 12, so that the heating device 503 can be activated to heat the molten metal inside the storage silo 12 as needed, or the exhaust fan 504 can be activated in conjunction with the air inlet 501 and the air duct 502 to connect the structure of the storage silo 12, thereby ventilating and cooling the inside of the storage silo 12, so as to accurately control the temperature of the molten metal and improve the accuracy and quality of the molten metal casting.

[0031] Example 2, as Figure 1-2 As shown, when the workpiece to be cast needs to be moved, the two sets of internal threaded sleeves 302 can be moved or extended by the independent control of the two sets of servo motors 307, thereby adjusting the position of the centered main bearing cover. This allows the main bearing cover to be clamped and positioned while the casting position is locally adjusted, further improving the flexibility of the casting position adjustment and increasing the convenience of automatic adjustment of the main bearing cover.

[0032] Working principle: In the casting device of the engine main bearing cap; When casting the main bearing cover of the engine, the main bearing cover can be transported and guided by the conveyor table 2. After being transported to the designated position, the bevel gear set 306 is driven by the control of two sets of servo motors 307, which causes the lead screw 305 to rotate and drive the internal thread sleeve 302 to move horizontally under the guide limit of the guide rail 304. The horizontal movement of the two sets of internal thread sleeves 302 drives the clamping plate 301 to center and fix the main bearing cover. At this time, the lifting cylinder 11 can be activated to drive the stirring casting mechanism 9 to descend and carry out the casting work. When casting the main bearing cover, the extension tube 908 can be lowered outside the casting tube 10 by adjusting the lifting chamber 901. After the extension tube 908 lowers, it forms a casting tube body with the casting tube 10, thus extending the casting tube 10. At the same time, the start of the drive motor 902 drives the gear 903 to rotate and mesh with the external gear ring 904. The external gear ring 904 drives the annular turntable 906 to rotate, which in turn drives two sets of heaters 909 and four sets of stirring rods 907 to rotate inside the extension tube 908. At this time, the start of the two sets of heaters 909 can heat the inner walls of the casting tube 10 and the extension tube 908, promoting the flow of the metal solution introduced into the storage bin 12 and the casting tube 10 through the feed pipe 6. With the stirring activity of the stirring rods 907, uneven solution flow is avoided, improving the accuracy and quality of solution casting and increasing the casting efficiency of the bearing cover.

[0033] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A casting device for an engine main bearing cap, comprising a mounting bracket (1), characterized in that: The bottom of the inner side of the mounting frame 1 (1) is provided with a conveying platform (2), the top of the inner side of the mounting frame 1 (1) is provided with two mounting slots (4), the top of the inner side of the mounting frame 1 (1) is provided with two sets of mounting frames 2 (7), and the bottom of the mounting frame 2 (7) is provided with a casting chamber (8). The top of the mounting frame 1 (1) is provided with a feed pipe (6), and the feed pipe (6) extends into the interior of the casting chamber (8) and is provided with a storage chamber (12) that is interconnected. The bottom of the storage chamber (12) is provided with a control valve, and the bottom of the control valve is provided with a casting pipe (10) that is interconnected. The side of the interior of the casting chamber (8) is provided with a lifting cylinder (11), and the output end of the lifting cylinder (11) is provided with a stirring casting mechanism (9). The bottom of the two sides of the inner side of the mounting frame 1 (1) is provided with a calibration positioning mechanism (3), and the interior of the two sets of mounting slots 1 (4) is provided with a temperature control system (5). The stirring pouring mechanism (9) includes a lifting chamber (901), a drive motor (902), a gear (903), an external gear ring (904), an annular guide groove (905), an annular turntable (906), a stirring rod (907), an extension tube (908), and a heater (909). The output end of the lifting cylinder (11) is provided with a lifting chamber (901). An extension tube (908) is provided at the middle position inside the lifting chamber (901), and the extension tube (908) is sleeved on the outside of the pouring pipe (10) and slidably engaged. An annular guide groove (905) is installed at the bottom inside the lifting chamber (901). The inner side of the annular guide groove (905) is provided with a slidingly fitted annular turntable (906). A drive motor (902) is installed on the top of one side of the lifting chamber (901). A gear (903) is provided at the output end of the drive motor (902). An external gear ring (904) that meshes with the gear (903) is provided on the outer side of the annular turntable (906). A heater (909) is symmetrically installed at the middle position of the inner side of the annular turntable (906). Four sets of stirring rods (907) are provided at the bottom of the inner side of the annular turntable (906), and the stirring rods (907) extend to the inner side of the extension tube (908).

2. The casting device for an engine main bearing cap according to claim 1, characterized in that: The calibration and positioning mechanism (3) includes a clamping plate (301), an internal threaded sleeve (302), a second mounting slot (303), a guide rail (304), a lead screw (305), a bevel gear set (306), and a servo motor (307). The second mounting slot (303) has two sets, which are installed on both sides of the bottom inner side of the mounting bracket (1). A servo motor (307) is located at the top of each set of the second mounting slots (303). The two sets of second mounting slots (303) are spaced far apart from each other. A bevel gear set (306) is provided on the side, and a threaded sleeve (302) with a thread fit is provided on the outer side of the two sets of lead screws (305). A clamping plate (301) is installed on the side of the two sets of internal threaded sleeves (302) that are close to each other. A guide rail (304) is provided at the bottom of the two sets of mounting grooves (303), and the guide rail (304) is in a limiting fit with the internal threaded sleeve (302). The output end of the two sets of servo motors (307) and the outer side of the lead screw (305) are provided with a bevel gear set (306) that meshes with each other.

3. The casting device for an engine main bearing cap according to claim 1, characterized in that: The temperature control system (5) includes an air inlet (501), an air guide pipe (502), a heating device (503), and an exhaust fan (504). An air inlet (501) is provided inside one set of the mounting slots (4), and an exhaust fan (504) is provided inside another set of the mounting slots (4). An air guide pipe (502) communicating with the storage bin (12) is provided on the side of the air inlet (501) and the exhaust fan (504) that are close to each other. A heating device (503) is provided at the bottom of one side of the casting bin (8), and the heating device (503) extends into the interior of the storage bin (12) and heats it.

4. The casting device for an engine main bearing cap according to claim 1, characterized in that: The mounting bracket (1) has ventilation openings on both sides of its top, and a dustproof net is provided on the inner side of the ventilation openings. The two sets of mounting slots (4) are connected to the ventilation openings.

5. The casting device for an engine main bearing cap according to claim 1, characterized in that: The top of the casting chamber (8) is provided with a telescopic guide rod, which is connected to the lifting chamber (901). The feed pipe (6), the storage chamber (12), the control valve, and the casting pipe (10) are arranged vertically and connected to each other. The front end of the casting chamber (8) is provided with a temperature display.

6. The casting apparatus for an engine main bearing cap according to claim 1, characterized in that: An annular opening is provided on the inner side of the extension tube (908), and the two sets of heaters (909) rotate and move inside the annular opening. The lifting chamber (901) and the extension tube (908) slide up and down outside the casting pipe (10).

7. The casting apparatus for an engine main bearing cap according to claim 1, characterized in that: The annular turntable (906) drives four sets of stirring rods (907) and two sets of heaters (909) to rotate inside the extension tube (908). The bottom of the extension tube (908) is provided with a pouring port, which is set in a conical structure.

8. The casting apparatus for an engine main bearing cap according to claim 2, characterized in that: The outer sides of the two sets of clamps (301) are provided with anti-slip textures, and the horizontal displacement of the two sets of clamps (301) is controlled by the internal threaded sleeve (302).

9. The casting device for an engine main bearing cap according to claim 2, characterized in that: The inner sides of the two sets of guide rails (304) are provided with guide blocks, and the guide blocks are connected to the internal threaded sleeve (302).

10. The casting apparatus for an engine main bearing cap according to claim 3, characterized in that: The exhaust fan (504) is connected to the storage bin (12) through a set of air guide pipes (502), and the air inlet (501) is connected to the storage bin (12) through another set of air guide pipes (502) and is equipped with a one-way valve.

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