Automatic casting manipulator for piston blanks

By introducing a cooling protective sleeve and a convenient disassembly mechanism into the automatic casting machine for piston blanks, the problems of complex replacement of the pouring ladle and insufficient cooling were solved, thereby improving casting accuracy and lifespan, and increasing production efficiency and equipment reliability.

CN224586970UActive Publication Date: 2026-08-04JIANGSU PISTON LOCOMOTIVE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU PISTON LOCOMOTIVE TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing automatic casting robot for piston blanks has a complicated connection for changing the pouring spoon and lacks an effective cooling device, which makes the pouring spoon prone to overheating and deformation, affecting the casting accuracy and service life.

Method used

A robotic arm assembly comprising a cooling protective sleeve, a high-temperature resistant suction pump, and a delivery pipe was designed. Combined with a disassembly mechanism and a guide pipe, it enables rapid disassembly and cooling of the pouring ladle, ensuring the continuity and precision of the casting process.

Benefits of technology

It improves casting accuracy and extends the service life of the pouring ladle, reduces equipment downtime, lowers maintenance costs, and ensures the continuity and efficiency of the casting process.

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Abstract

The utility model discloses a kind of piston blank automatic casting manipulator, it is related to manipulator technical field, including manipulator assembly, the manipulator assembly includes mobile connecting arm, the top of the mobile connecting arm is fixedly connected with support arm by adjusting mechanism, one end lateral wall of the support arm is fixedly connected with support frame, cooling protective sleeve shell is rotatably connected between the both ends of the support frame, the top of the cooling protective sleeve shell is inserted with ladle, the both ends lateral wall of the ladle is fixedly connected with positioning plate.The manipulator assembly provided by the utility model is convenient for the replacement of ladle quick disassembly and installation, and the service life is increased by overheating cooling protection, so as to solve the problems of complex ladle replacement connection, inconvenient replacement, lack of effective cooling device, ladle easy to overheat deformation, influence casting precision and service life in the existing piston blank automatic casting manipulator.
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Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically to an automatic casting robotic arm for piston blanks. Background Technology

[0002] The piston blank automatic casting robot is an automated device that uses a robotic arm to move along a guide rail, and in conjunction with a pouring spoon and guide tube, automatically and accurately delivers and pours high-temperature molten metal into a mold to form a piston blank.

[0003] According to the search results, the publication (announcement) number is CN203495198U, and the name is: Piston Casting Auxiliary Robot, which includes an actuator, a drive mechanism and a control device. The actuator is characterized by having a horizontal arm (1), a main seat (2) and a gripper (3). The horizontal arm is located at the upper end of the main seat and has guide rails on both sides. The front end of the horizontal arm is equipped with a gripper, etc. This utility model has the positive effects of flexible and accurate operation, improved production efficiency and guaranteed product quality.

[0004] The above technical solution has the following shortcomings;

[0005] The above-mentioned solutions have significant drawbacks in practical use: As a component that directly contacts the high-temperature molten metal solution, the surface of the pouring ladle will wear down after prolonged use due to high-temperature erosion and metal adhesion, requiring periodic replacement. However, existing casting robots and pouring ladles are usually connected by bolts, welding, or complex nested structures. When replacing the pouring ladle, operators need to use various tools for disassembly, which is not only cumbersome and time-consuming, seriously affecting production efficiency, but also prone to deformation and damage of the connection parts due to frequent disassembly, increasing maintenance costs. Furthermore, during continuous contact with the high-temperature solution, the pouring ladle accumulates heat and is prone to overheating and deformation, which in turn affects casting accuracy and the service life of the pouring ladle. However, most existing casting robots are not equipped with effective pouring ladle cooling devices, which cannot reduce the temperature of the pouring ladle in time, making it difficult to meet the needs of long-term continuous casting operations. Utility Model Content

[0006] In view of the problems existing in the current automatic casting robot for piston blanks, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an automatic casting robot for piston blanks, which solves the problems of complex replacement and connection of the casting ladle, inconvenience in replacement, and lack of effective cooling device in existing automatic casting robots for piston blanks, which leads to overheating and deformation of the casting ladle, affecting casting accuracy and service life.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An automatic casting robot for piston blanks includes a robot assembly. The robot assembly includes a movable connecting arm, a support arm fixedly connected to the top of the movable connecting arm via an adjustment mechanism, a support frame fixedly connected to one end side wall of the support arm, a cooling protective sleeve rotatably connected between the two ends of the support frame, a pouring ladle inserted into the top of the cooling protective sleeve, positioning plates fixedly connected to the side walls of both ends of the pouring ladle, positioning holes opened at both ends of the top of the cooling protective sleeve, the positioning plates at both ends being inserted into the corresponding positioning holes, and a disassembly mechanism provided between the cooling protective sleeve and the positioning plates at both ends.

[0010] A high-temperature resistant suction pump is fixedly connected to the bottom of the cooling protective sleeve. A high-temperature resistant suction pipe is fixedly connected to the input end of the high-temperature resistant suction pump. A high-temperature resistant delivery pipe is fixedly connected to the output end of the high-temperature resistant suction pump. A delivery rotary joint is fixedly connected to the side wall of the cooling protective sleeve. The input end of the delivery rotary joint and the output end of the high-temperature resistant delivery pipe are fixedly connected. The output end of the delivery rotary joint corresponds to the position of the pouring ladle. A control system is fixedly connected inside the cavity of the movable connecting arm. A first electric push rod is rotatably connected to the side wall of the support arm. The other end of the first electric push rod is rotatably connected to the side wall of the high-temperature resistant suction pump.

[0011] Preferably, the adjustment mechanism includes a support chamber, a second electric push rod, and a first sliding opening. The support chamber is fixedly connected to the top of the movable connecting arm, and the second electric push rod is fixedly connected to the side wall of the support chamber. The first sliding opening is provided on the top of the support chamber, and the support arm is slidably connected to the first sliding opening. One end of the support arm passes through the first sliding opening and is fixedly connected to one end of the second electric push rod.

[0012] Preferably, the easy-to-disassemble mechanism includes a limiting port, a limiting rod, a spring, a second sliding port, and an adjusting paddle. The side walls of the positioning plates at both ends are provided with limiting ports. The cavities at both ends of the cooling protective sleeve are slidably connected with limiting rods. One end of the limiting rod at both ends is inserted into the corresponding limiting port. The side walls of the limiting rod at both ends are fixedly connected with springs. The top ends of the cooling protective sleeve are provided with second sliding ports and are slidably connected with adjusting paddles. The side walls of the adjusting paddles at both ends are fixedly connected to the rod walls of the limiting rods.

[0013] Preferably, a guide tube is fixedly connected to the side wall of the pouring spoon, and both the pouring spoon and the guide tube are provided with a high-temperature resistant and corrosion-resistant alumina-zirconia composite coating.

[0014] Preferably, the two ends of the cooling protective sleeve are respectively fixedly connected to a cooling medium inlet pipe and a cooling medium outlet pipe.

[0015] Furthermore, the conveying rotary joint includes a support plate, and a rotary pipe is rotatably connected inside the cavity of the support plate. One end of the high-temperature resistant conveying pipe is rotatably connected to the input end of the rotary pipe.

[0016] Preferably, the cavity of the rotating tube is provided with a high-temperature resistant, non-stick ceramic coating.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. This utility model utilizes the telescopic movement of the second electric push rod in the adjustment mechanism, combined with the guidance of the first sliding port, to precisely control the moving distance and angle of the support arm, enabling the pouring ladle to accurately reach the casting position. By using the guide pipe set on the side wall of the pouring ladle to change the outflow direction and path of the casting material, the material can be more accurately poured into the piston blank mold, improving the uniformity of casting and the molding quality. The cooling medium inlet pipe and outlet pipe connected to the cooling protective sleeve form a cooling cycle, effectively controlling the temperature of the pouring ladle, preventing it from deforming due to high temperature, and ensuring stable casting accuracy.

[0019] 2. This utility model utilizes a spring-driven limit rod in a convenient disassembly mechanism to insert into the limit port, firmly limiting the positioning plate of the pouring ladle and preventing loosening during the casting process. When the pouring ladle needs to be replaced, the adjusting plate is moved to overcome the spring force and disengage the limit rod from the limit port, which can quickly release the limit on the pouring ladle, realizing convenient disassembly and installation of the pouring ladle, greatly improving the efficiency of pouring ladle replacement, reducing equipment downtime, and ensuring the continuity of casting operations.

[0020] 3. This utility model utilizes a high-temperature resistant suction pump in conjunction with a high-temperature resistant suction pipe and a high-temperature resistant delivery pipe to stably deliver casting raw materials, ensuring continuous casting process. The rotating pipe of the delivery rotary joint can rotate freely, allowing the high-temperature resistant delivery pipe to adapt to the rotation requirements of the pouring ladle without affecting the material delivery, ensuring smooth material delivery. Furthermore, the high-temperature resistant, non-stick ceramic coating inside the rotating pipe cavity prevents raw materials from sticking, solidifying, and clogging the pipe, reducing cleaning and maintenance workload. The high-temperature resistant, corrosion-resistant alumina-zirconia composite coating on the inner wall of the pouring ladle and guide pipe resists high temperatures and corrosion, extending the service life of components and reducing equipment maintenance costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a front sectional view of the present invention;

[0024] Figure 3 This is a partial top sectional view of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Robotic arm assembly; 2. Moving connecting arm; 3. Support arm; 4. Support frame; 5. Cooling protective sleeve; 6. Pouring ladle; 7. Positioning plate; 8. Positioning port; 9. High-temperature resistant suction pump; 10. High-temperature resistant suction pipe; 11. High-temperature resistant conveying pipe; 12. Conveying rotary joint; 13. Control system; 14. First electric push rod; 15. Support chamber; 16. Second electric push rod; 17. First sliding port; 18. Limiting port; 19. Limiting rod; 20. Spring; 21. Second sliding port; 22. Adjusting lever; 23. Guide pipe; 24. Cooling medium inlet pipe; 25. Cooling medium outlet pipe; 26. Support plate; 27. Rotary connecting pipe. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model discloses an automatic casting robot for piston blanks.

[0030] This utility model provides, for example Figure 1-4 The illustrated automatic casting robot for piston blanks includes a robot assembly 1. The robot assembly 1 includes a movable connecting arm 2. The top of the movable connecting arm 2 is fixedly connected to a support arm 3 via an adjustment mechanism. A support frame 4 is fixedly connected to one side wall of the support arm 3. A cooling protective sleeve 5 is rotatably connected between the two ends of the support frame 4. A pouring ladle 6 is inserted into the top of the cooling protective sleeve 5. Positioning plates 7 are fixedly connected to the side walls of both ends of the pouring ladle 6. Positioning ports 8 are opened at both ends of the top of the cooling protective sleeve 5. The positioning plates 7 at both ends are inserted into the corresponding positioning ports 8. A disassembly mechanism is provided between the cooling protective sleeve 5 and the positioning plates 7 at both ends.

[0031] A high-temperature resistant suction pump 9 is fixedly connected to the bottom of the cooling protective sleeve 5. A high-temperature resistant suction pipe 10 is fixedly connected to the input end of the high-temperature resistant suction pump 9, and a high-temperature resistant delivery pipe 11 is fixedly connected to the output end of the high-temperature resistant suction pump 9. A delivery rotary joint 12 is fixedly connected to the side wall of the cooling protective sleeve 5. The input end of the delivery rotary joint 12 and the output end of the high-temperature resistant delivery pipe 11 are fixedly connected. The output end of the delivery rotary joint 12 corresponds to the position of the pouring ladle 6. A control system 13 is fixedly connected inside the cavity of the movable connecting arm 2. A first electric push rod 14 is rotatably connected to the side wall of the support arm 3. The other end of the first electric push rod 14 is rotatably connected to the side wall of the high-temperature resistant suction pump 9. By using the movable connecting arm 2 and the adjustment mechanism, the position and angle of the support arm 3 can be flexibly adjusted, so that the casting robot can adapt to different work positions and casting needs, improving the flexibility of use. By using the insertion and cooperation between the cooling protective sleeve 5 and the pouring ladle 6, combined with the positioning plate 7 and the positioning port 8, the initial positioning of the pouring ladle 6 is achieved. The disassembly mechanism then... The design facilitates quick disassembly and installation of the pouring ladle 6, significantly shortening replacement time and improving casting efficiency. Utilizing a high-temperature resistant suction pump 9 in conjunction with a high-temperature resistant suction pipe 10 and a high-temperature resistant delivery pipe 11, it stably delivers casting materials, ensuring continuous casting. The designed conveyor rotary joint 12 allows for easy rotation and adjustment to correspond with the pouring ladle 6, or can be rotated away during ladle 6 disassembly without affecting the disassembly process. The control system 13 enables precise control of all components of the robotic arm. The first electric push rod 14 allows for adjustable angle feeding of the pouring ladle 6, facilitating casting at different locations. A cooling and protective sleeve 5 cools and protects the pouring ladle 6, effectively preventing deformation due to overheating, ensuring casting accuracy, and extending its service life. This design solves the problems of complex pouring ladle replacement connections, inconvenient replacement, and lack of effective cooling devices in existing piston blank automatic casting robotic arms, which lead to overheating deformation of the pouring ladle and affect casting accuracy and service life.

[0032] To increase distance adjustment, such as Figure 1 and 2 As shown, the adjustment mechanism includes a support chamber 15, a second electric push rod 16, and a first sliding opening 17. The top of the movable connecting arm 2 is fixedly connected to the support chamber 15, and the second electric push rod 16 is fixedly connected to the side wall of the support chamber 15. The top of the support chamber 15 has a first sliding opening 17, and the support arm 3 is slidably connected to the first sliding opening 17. One end of the support arm 3 passes through the first sliding opening 17 and is fixedly connected to one end of the second electric push rod 16. By utilizing the telescopic movement of the second electric push rod 16 and the guiding effect of the first sliding opening 17, the moving distance and angle of the support arm 3 can be precisely controlled, so that the pouring ladle 6 can accurately reach the pouring position, improving the accuracy of pouring. The support chamber 15 provides installation support for the second electric push rod 16, enhancing the structural stability of the adjustment mechanism and ensuring the reliability of the position of the support arm 3 during the pouring process.

[0033] To facilitate the installation and quick disassembly and replacement of the pouring spoon 6, such as Figure 1 and 3 The disassembly mechanism includes a limiting port 18, a limiting rod 19, a spring 20, a second sliding port 21, and an adjusting lever 22. Limiting ports 18 are provided on the side walls of both end positioning plates 7. Limiting rods 19 are slidably connected to the cavities at both ends of the cooling protective sleeve 5. One end of each limiting rod 19 is inserted into the corresponding limiting port 18. Springs 20 are fixedly connected to the side walls of both limiting rods 19. Second sliding ports 21 are provided at both ends of the top of the cooling protective sleeve 5, and adjusting levers 22 are slidably connected thereto. The side wall of 2 is fixedly connected to the wall of the limiting rod 19. The spring 20 is used to push the limiting rod 19 into the limiting port 18 to firmly limit the positioning plate 7 of the pouring ladle 6, preventing the pouring ladle 6 from loosening or falling off during the casting process, and ensuring the safety and stability of the casting operation. The adjustable lever 22 is used to overcome the elasticity of the spring 20 and make the limiting rod 19 disengage from the limiting port 18, which can quickly release the limitation on the pouring ladle 6, realize the convenient disassembly and installation of the pouring ladle 6, greatly improve the replacement efficiency of the pouring ladle 6, and reduce equipment downtime.

[0034] To ensure more precise casting of the raw materials into the piston blank mold and to improve corrosion resistance, such as Figure 1-3 As shown, a guide tube 23 is fixedly connected to the side wall of the pouring ladle 6. Both the pouring ladle 6 and the guide tube 23 are coated with a high-temperature resistant and corrosion-resistant alumina-zirconia composite coating. By using the guide tube 23 to change the outflow direction and path of the casting material, the material can be more accurately cast into the piston blank mold, improving the uniformity of casting and the molding quality. The high-temperature resistant and corrosion-resistant alumina-zirconia composite coating can effectively resist the corrosion of high temperature and casting material, protect the inner wall structure of the pouring ladle 6 and the guide tube 23, extend their service life, and reduce equipment maintenance costs.

[0035] To effectively control the temperature of the pouring spoon 6 and prevent it from deforming due to high temperature, such as Figure 1 and 4 As shown, the cooling protective sleeve 5 is fixedly connected to a cooling medium inlet pipe 24 and a cooling medium outlet pipe 25 at both ends. The cooling medium flows into the cooling protective sleeve 5 through the cooling medium inlet pipe 24, exchanges heat with the pouring ladle 6, and removes the heat generated by the pouring ladle 6 during the casting process. Then it flows out through the cooling medium outlet pipe 25 to form a cooling cycle, thereby achieving continuous cooling of the pouring ladle 6, effectively controlling the temperature of the pouring ladle 6, preventing it from deforming due to high temperature, and ensuring the casting accuracy and stable performance of the pouring ladle 6.

[0036] For ease of solution delivery and angle control, such as Figure 1 , 2As shown in Figure 4, the conveying rotary joint 12 includes a support plate 26, and a rotary pipe 27 is rotatably connected inside the cavity of the support plate 26. One end of the high-temperature resistant conveying pipe 11 is rotatably connected to the input end of the rotary pipe 27. The support plate 26 provides support and a mounting base for the rotary pipe 27, ensuring the stability of the rotary pipe 27 during rotation. The rotary pipe 27 can rotate freely relative to the support plate 26, allowing the high-temperature resistant conveying pipe 11 to adapt to the rotation requirements of the pouring ladle 6 without affecting the material conveying. This ensures that the material can be smoothly conveyed at different angles and positions of the pouring ladle 6, improving the continuity and reliability of the casting process.

[0037] To avoid clogging the pipes, such as Figure 1 , 2 As shown in Figure 4, the cavity of the rotating pipe 27 is provided with a high-temperature resistant and non-stick ceramic coating. The high-temperature resistant and non-stick ceramic coating has excellent high-temperature resistance and can withstand the high temperature of the casting raw materials. At the same time, its non-stick properties can prevent the raw materials from sticking and solidifying on the inner wall of the rotating pipe 27, avoid clogging the pipe, ensure the smooth flow of raw materials, reduce the amount of cleaning and maintenance work, and improve the operating efficiency and service life of the equipment.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A piston blank automatic casting robot comprising a robot assembly (1), characterized in that The robotic arm assembly (1) includes a movable connecting arm (2), the top of which is fixedly connected to a support arm (3) via an adjustment mechanism. A support frame (4) is fixedly connected to one side wall of the support arm (3). A cooling protective sleeve (5) is rotatably connected between the two ends of the support frame (4). A pouring ladle (6) is inserted into the top of the cooling protective sleeve (5). Positioning plates (7) are fixedly connected to the side walls of both ends of the pouring ladle (6). Positioning ports (8) are opened at both ends of the top of the cooling protective sleeve (5). The positioning plates (7) at both ends are inserted into the corresponding positioning ports (8). A disassembly mechanism is provided between the cooling protective sleeve (5) and the positioning plates (7) at both ends. A high-temperature resistant suction pump (9) is fixedly connected to the bottom of the cooling protective sleeve (5). A high-temperature resistant suction pipe (10) is fixedly connected to the input end of the high-temperature resistant suction pump (9). A high-temperature resistant delivery pipe (11) is fixedly connected to the output end of the high-temperature resistant suction pump (9). A delivery rotary joint (12) is fixedly connected to the side wall of the cooling protective sleeve (5). The input end of the delivery rotary joint (12) and the output end of the high-temperature resistant delivery pipe (11) are fixedly connected. The output end of the delivery rotary joint (12) corresponds to the position of the pouring ladle (6). A control system (13) is fixedly connected inside the cavity of the movable connecting arm (2). A first electric push rod (14) is rotatably connected to the side wall of the support arm (3). The other end of the first electric push rod (14) is rotatably connected to the side wall of the high-temperature resistant suction pump (9).

2. The automatic casting robot for a piston blank according to claim 1, wherein The adjustment mechanism includes a support chamber (15), a second electric push rod (16), and a first sliding opening (17). The top of the movable connecting arm (2) is fixedly connected to the support chamber (15), and the side wall of the support chamber (15) is fixedly connected to the second electric push rod (16). The top of the support chamber (15) is provided with a first sliding opening (17). The support arm (3) is slidably connected to the first sliding opening (17). One end of the support arm (3) passes through the first sliding opening (17) and is fixedly connected to one end of the second electric push rod (16).

3. The automatic casting robot for a piston blank according to claim 1, wherein The disassembly mechanism includes a limiting port (18), a limiting rod (19), a spring (20), a second sliding port (21), and an adjusting paddle (22). The side walls of the positioning plates (7) at both ends are provided with limiting ports (18). The cooling protective sleeve (5) is slidably connected to the cavity at both ends with limiting rods (19). One end of the limiting rods (19) at both ends is inserted into the corresponding limiting port (18). The side walls of the limiting rods (19) at both ends are fixedly connected with springs (20). The top two ends of the cooling protective sleeve (5) are provided with second sliding ports (21) and are slidably connected with adjusting paddles (22). The side walls of the adjusting paddles (22) at both ends are fixedly connected to the rod walls of the limiting rods (19).

4. The automatic casting hand for a piston blank according to claim 1, wherein The side wall of the pouring spoon (6) is fixedly connected to a guide tube (23), and the cavity of both the pouring spoon (6) and the guide tube (23) is provided with a high-temperature resistant and corrosion-resistant alumina-zirconia composite coating.

5. The automatic casting hand for a piston blank according to claim 1, wherein The cooling protective sleeve (5) is fixedly connected to a cooling medium inlet pipe (24) and a cooling medium outlet pipe (25) at both ends.

6. The automatic casting hand of a piston blank according to claim 1, wherein The conveying rotary joint (12) includes a support plate (26), and a rotary pipe (27) is rotatably connected inside the cavity of the support plate (26). One end of the high-temperature resistant conveying pipe (11) is rotatably connected to the input end of the rotary pipe (27).

7. The automatic casting hand of a piston blank according to claim 6, wherein The rotating connector (27) is provided with a high-temperature resistant and non-stick ceramic coating inside its cavity.