Manipulator grabbing structure of die-casting equipment
By designing a robotic arm with a lifting column and connecting rod structure, combined with gear drive and multiple rotating arms, the deformation problem of traditional robotic arms during high-temperature die casting is solved, achieving stable gripping under high-temperature conditions and extending the service life of the robotic arm.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DE MAO ELECTROMECHANICAL CO LTD
- Filing Date
- 2024-12-25
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional robotic arms are prone to deformation during high-temperature die casting, which reduces gripping stability.
It adopts a lifting column and connecting rod structure, and is driven by a gear motor and drive gear transmission. Combined with multiple rotating arms and lifting motors, it realizes a flexible robotic gripping structure, and uses gripping blocks made of high-friction rubber material for gripping.
This improves the gripping stability and lifespan of the robotic arm under high-temperature conditions, avoiding gripping instability caused by deformation.
Smart Images

Figure CN224183070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting machine material handling technology, and in particular to the gripping structure of a robotic arm for die casting equipment. Background Technology
[0002] Die casting is a metal casting process characterized by applying high pressure to molten metal within a mold cavity. The mold is typically made of a high-strength alloy. The process is somewhat similar to injection molding. On automated production lines, die-cast parts are usually removed by robotic arms. Traditional robotic arms often use gear-driven structures, which are prone to deformation when gripping high-temperature die-cast metal, leading to reduced stability. This paper proposes a new robotic arm gripping structure for die casting equipment. This structure controls the movement of a connecting rod by moving a lifting column up and down to achieve the gripping purpose. It features a simple structure, avoids deformation due to high temperatures, and improves the service life of the robotic arm. Utility Model Content
[0003] The robotic gripping structure for die-casting equipment proposed in this utility model solves the existing problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A robotic gripper structure for die-casting equipment includes a base and a sliding groove. A rotating disk is mounted on the top of the base, and a first drive motor is mounted on the top of the rotating disk. A first rotating arm is connected to one side of the first drive motor, and a second rotating arm is mounted to one side of the first rotating arm. A third rotating arm is mounted to one side of the second rotating arm, and a second drive motor is mounted to one side of the third rotating arm. A lifting block is mounted at the bottom of the second drive motor, and a lifting column is disposed inside the lifting block. A sliding plate is attached to the outside of the lifting column, and a first connecting rod is connected to one side of the sliding plate. A connecting shaft is disposed at one end of the first connecting rod, and a second connecting rod is connected to one side of the connecting shaft. A gripping block is disposed at the bottom of the second connecting rod.
[0006] Preferably, a rotating gear disk is sleeved inside the rotating disk, and the rotating disk rotates with the rotating gear disk. A drive gear meshes inside the rotating gear disk, and a gear drive motor is provided at the bottom of the drive gear. The gear drive motor is fixedly installed inside the base.
[0007] Preferably, the first drive motor is connected to one end of the first rotating arm, and the first rotating arm is rotatably connected to the first drive motor; the second rotating arm is connected to the other end of the first rotating arm, and the second rotating arm rotates around one end of the first rotating arm; the third rotating arm is connected to the other end of the second rotating arm, and the third rotating arm rotates around one end of the second rotating arm.
[0008] Preferably, the second drive motor drives the lifting block to rotate, and a lifting motor is provided on one side of the second drive motor, with one end of the lifting motor connected to the lifting column.
[0009] Preferably, the bottom of the lifting column has a conical structure, and the sliding plates are arranged in a circumferential array on the side of the lifting column.
[0010] Preferably, the sliding groove is positioned corresponding to the sliding piece, and the sliding groove is arranged in a circumferential array on the side of the lifting block. The shape and size of the sliding groove match the first connecting rod, and the sliding piece moves along the sliding groove.
[0011] Preferably, a third connecting rod is provided at the bottom of the lifting block, and the position of the third connecting rod corresponds to the sliding plate. A rotating block is provided at one end of the third connecting rod, and a movable collar is provided on one side of the rotating block. The movable collar rotates around the rotating block.
[0012] Preferably, the second connecting rod is slidably connected inside the movable collar, and the gripping block is made of a high-friction rubber material.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The gear drive motor transmits power to the drive gear, and the rotating gear disk follows the rotation of the drive gear. By rotating the gear disk, the angle of the rotating disk can be adjusted to achieve the purpose of rotating the robotic arm.
[0015] 2. A flexible robotic arm structure is formed by the combined rotation of the first rotating arm, the second rotating arm, and the third rotating arm;
[0016] 3. As the lifting column moves, the sliding plate moves along the sliding groove. The first connecting rod moves with the sliding plate, and the first connecting rod drives the second connecting rod to move. The second connecting rod slides inside the movable collar, causing the gripping block to retract inward, thus achieving the purpose of gripping.
[0017] In summary, by adopting the structure of this utility model, the problem that traditional robotic arms often use gear transmission structures, which are prone to deformation when grasping high-temperature die-cast metals, resulting in reduced stability during grasping can be better solved. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the robotic arm structure of the die-casting equipment of this utility model;
[0019] Figure 2 This is a schematic diagram of the manipulator of the die-casting equipment of this utility model from another angle.
[0020] Figure 3This is a cross-sectional view of the robotic arm structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the robotic arm of this utility model;
[0022] Figure 5 This is a schematic diagram of the rotating disk structure of this utility model.
[0023] The following are the labels in the diagram: 1. Base; 2. Rotating disk; 3. First drive motor; 4. First rotating arm; 5. Second rotating arm; 6. Third rotating arm; 7. Second drive motor; 8. Lifting block; 9. Lifting column; 10. Sliding plate; 11. First connecting rod; 12. Connecting shaft; 13. Second connecting rod; 14. Gripping block; 15. Sliding groove; 16. Third connecting rod; 17. Rotating block; 18. Movable collar; 19. Rotating gear disk; 20. Drive gear; 21. Gear drive motor; 22. Lifting motor. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Reference Figures 1-5 The die-casting equipment robotic gripper structure includes a base 1 and a sliding groove 15. A rotating disk 2 is mounted on the top of the base 1, and a first drive motor 3 is installed on the top of the rotating disk 2. A first rotating arm 4 is connected to one side of the first drive motor 3, and the first drive motor 3 controls the rotation of the first rotating arm 4. A second rotating arm 5 is mounted to one side of the first rotating arm 4, and a third rotating arm 6 is mounted to one side of the second rotating arm 5. A second drive motor 7 is mounted to one side of the third rotating arm 6. A lifting block 8 is installed at the bottom of the second drive motor 7, and a lifting column 9 is installed inside the lifting block 8. A sliding piece 10 is attached to the outside of the lifting column 9, and the sliding piece 10 moves along the outside of the lifting column 9. A first connecting rod is connected to one side of the sliding piece 10. The first connecting rod 11 has a connecting shaft 12 at one end, and a second connecting rod 13 is connected to one side of the connecting shaft 12. The bottom of the second connecting rod 13 has a gripping block 14, which clamps the die-cast metal by contraction between the gripping blocks 14. A rotating gear 19 is sleeved inside the rotating disk 2, and the rotating disk 2 rotates with the rotating gear 19. A drive gear 20 meshes inside the rotating gear 19, and a gear drive motor 21 is provided at the bottom of the drive gear 20. The gear drive motor 21 is fixedly installed inside the base 1 and drives the drive gear 20. The rotating gear 19 rotates with the drive gear 20, and the angle of the rotating disk 2 is adjusted by rotating the rotating gear 19.
[0026] Reference Figure 1 and Figure 2 The first drive motor 3 is connected to one end of the first rotating arm 4, and the first rotating arm 4 is rotatably connected to the first drive motor 3. The second rotating arm 5 is connected to the other end of the first rotating arm 4, and the second rotating arm 5 rotates around one end of the first rotating arm 4. The third rotating arm 6 is connected to the other end of the second rotating arm 5, and the third rotating arm 6 rotates around one end of the second rotating arm 5. Through the combined rotation of the first rotating arm 4, the second rotating arm 5 and the third rotating arm 6, a flexible robotic arm structure is formed.
[0027] Reference Figure 3 and Figure 4 The second drive motor 7 drives the lifting block 8 to rotate, and a lifting motor 22 is provided on one side of the second drive motor 7. One end of the lifting motor 22 is connected to the lifting column 9. The lifting motor 22 controls the lifting column 9 to rise and fall. The bottom of the lifting column 9 has a conical structure, and the sliding plates 10 are distributed in a circumferential array on the side of the lifting column 9. The position of the sliding groove 15 corresponds to the sliding plates 10, and the sliding groove 15 is opened in a circumferential array on the side of the lifting block 8. The shape and size of the sliding groove 15 match the first connecting rod 11, and the sliding plates 10 move along the sliding groove 15. When the lifting column 9 moves, the sliding plates 10 are in contact with the lifting column 9. The first connecting rod 11 moves along the sliding groove 15 on the side and moves with the sliding plate 10. The bottom of the lifting block 8 is provided with a third connecting rod 16, and the position of the third connecting rod 16 corresponds to that of the sliding plate 10. One end of the third connecting rod 16 is provided with a rotating block 17, and one side of the rotating block 17 is provided with a movable collar 18. The movable collar 18 rotates around the rotating block 17. While the first connecting rod 11 moves, the second connecting rod 13 slides inside the movable collar 18. The gripping block 14 moves with the second connecting rod 13 and retracts inward to achieve the purpose of gripping. The gripping block 14 is made of a high-friction rubber material.
[0028] Working principle: First, during use, the gear drive motor 21 controls the rotation of the drive gear 20, adjusts the rotating disk 2 to a suitable angle, and controls the first drive motor 3 to control the first rotating arm 4, the second rotating arm 5, and the third rotating arm 6, adjusting the rotating arms to a suitable position. Then, the second drive motor 7 is driven to adjust the angle of the second connecting rod 13, so that the lifting block 8 and the gripping block 14 correspond to the die-cast metal. The lifting motor 22 controls the lifting column 9 to move upward, and the sliding plate 10 moves along the sliding groove 15 along the side of the lifting column 9. The first connecting rod 11 moves with the sliding plate 10. While the first connecting rod 11 moves, the second connecting rod 13 slides inside the movable collar 18. The gripping block 14 moves with the second connecting rod 13 and retracts inward to achieve the gripping purpose. After gripping the die-cast metal, the angle of the rotating disk 2 is adjusted to move the die-cast metal. After moving to a suitable position, the lifting motor 22 controls the lifting column 9 to move downward, causing the gripping block 14 to expand outward and place the die-cast metal.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A robotic gripping structure for die-casting equipment, comprising a base (1) and a sliding groove (15), characterized in that, The base (1) is provided with a rotating disk (2) on top, and a first drive motor (3) is installed on the top of the rotating disk (2). A first rotating arm (4) is connected to one side of the first drive motor (3), and a second rotating arm (5) is provided to one side of the first rotating arm (4). A third rotating arm (6) is installed to one side of the second rotating arm (5), and a second drive motor (7) is provided to one side of the third rotating arm (6). A lifting block (8) is installed at the bottom of the second drive motor (7), and a lifting column (9) is provided inside the lifting block (8). A sliding piece (10) is attached to the outside of the lifting column (9), and a first connecting rod (11) is connected to one side of the sliding piece (10). A connecting shaft (12) is provided at one end of the first connecting rod (11), and a second connecting rod (13) is connected to one side of the connecting shaft (12). A gripping block (14) is provided at the bottom of the second connecting rod (13).
2. The die casting apparatus robot gripping structure according to claim 1, characterized by, The rotating disk (2) is fitted with a rotating gear disk (19) inside, and the rotating disk (2) rotates with the rotating gear disk (19). The rotating gear disk (19) is meshed with a drive gear (20) on its inner side, and a gear drive motor (21) is provided at the bottom of the drive gear (20). The gear drive motor (21) is fixedly installed inside the base (1).
3. The die casting apparatus robot gripping structure according to claim 1, characterized by, The first drive motor (3) is connected to one end of the first rotating arm (4), and the first rotating arm (4) is rotatably connected to the first drive motor (3). The second rotating arm (5) is connected to the other end of the first rotating arm (4), and the second rotating arm (5) rotates around one end of the first rotating arm (4). The third rotating arm (6) is connected to the other end of the second rotating arm (5), and the third rotating arm (6) rotates around one end of the second rotating arm (5).
4. The die casting apparatus robot gripping structure according to claim 1, characterized by, The second drive motor (7) drives the lifting block (8) to rotate, and a lifting motor (22) is provided on one side of the second drive motor (7), one end of the lifting motor (22) is connected to the lifting column (9).
5. The robotic gripping structure for die-casting equipment according to claim 1, characterized in that, The bottom of the lifting column (9) is a cone-shaped structure, and the sliding plates (10) are arranged in a circumferential array on the side of the lifting column (9).
6. The die casting apparatus robot gripping structure according to claim 1, wherein The sliding groove (15) is positioned corresponding to the sliding piece (10), and the sliding groove (15) is arranged in a circumferential array on the side of the lifting block (8). The shape and size of the sliding groove (15) match the first connecting rod (11), and the sliding piece (10) moves along the sliding groove (15).
7. The die casting apparatus robot gripping structure according to claim 1, wherein The bottom of the lifting block (8) is provided with a third connecting rod (16), and the position of the third connecting rod (16) corresponds to the sliding plate (10). One end of the third connecting rod (16) is provided with a rotating block (17), and a movable collar (18) is provided on one side of the rotating block (17). The movable collar (18) rotates around the rotating block (17).
8. The die casting apparatus robot gripping structure according to claim 7, characterized by, The second connecting rod (13) is slidably connected inside the movable collar (18).