Dolphin type mechanical arm

Abstract

The utility model relates to the technical field of mechanical arms, and discloses a dolphin type mechanical arm which comprises a dolphin mechanical arm body, a guide rail, an electromagnet and an external power source, a threaded lead screw is rotationally installed in the middle of the interior of the guide rail, and the outer side of the threaded lead screw penetrates through and is in threaded connection with a movable base. Lug plates are fixedly connected to the middles of the front end and the rear end of the electromagnet, fixing rods are fixedly connected to the positions, close to the middles of the front side and the rear side, of the lower end of the movable base, the outer sides of the fixing rods are sleeved with the lug plates in a sliding mode, and a low-resistance iron plate is fixedly installed at the inner bottom of the guide rail. The middle parts of the front end and the rear end of the low-resistance iron plate penetrate through the guide rail and are provided with terminal studs. According to the device, the moving structure of the mechanical arm is simplified, meanwhile, the problem that a traditional mechanical arm is unstable in fixation due to mechanical abrasion is solved, and by optimizing the heat dissipation structure of the electromagnet, the heating value of the electromagnet in long-time work is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a dolphin-type robotic arm. Background Technology

[0002] In the fields of industrial automation and precision manufacturing, robotic arms are key pieces of equipment, and their operational precision and flexibility are crucial to production efficiency and product quality. However, traditional robotic arm designs are mostly limited to fixed use, meaning they can only operate in preset fixed positions, which undoubtedly restricts the application range and flexibility of robotic arms.

[0003] While some mobile robotic arms are available on the market, their movement structures are often quite complex, containing numerous mechanical transmission components. This not only increases the manufacturing cost and maintenance difficulty of the equipment but also introduces additional latency. This latency is particularly noticeable when the robotic arm is performing precision operations, potentially leading to inaccurate positioning and choppy operation, thereby affecting production efficiency and product quality.

[0004] Furthermore, traditional mobile robotic arms typically use mechanical locking or bolts to fix themselves in a fixed position. These methods are not only cumbersome to operate, but also significantly reduce work efficiency in scenarios requiring frequent movement and position adjustments. Additionally, these fixing methods can lead to instability due to mechanical wear, further affecting the robotic arm's operational accuracy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dolphin-style robotic arm, which has the advantages of being able to stop and move at will during mobile operations and being able to fix itself quickly and stably, thus solving some of the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a dolphin-type robotic arm, including a dolphin robotic arm, a guide rail, an electromagnet, and an external power supply. A threaded screw is rotatably installed in the middle of the inner side of the guide rail. A movable seat is threaded through and connected to the outer side of the threaded screw. Ear plates are fixedly connected to the middle of both the front and rear ends of the electromagnet. Fixed rods are fixedly connected to the lower end of the movable seat near the middle of both the front and rear sides. The ear plates are slidably sleeved on the outer side of the fixed rods. A low-resistance iron plate is fixedly installed in the inner bottom of the guide rail. The fixed rods are in contact with the low-resistance iron plate. The middle parts of both the front and rear ends of the low-resistance iron plate pass through the guide rail and are provided with wiring terminals. An electromagnetic coil is provided inside the low-resistance iron plate. The wiring terminals form a closed circuit with the external power supply and the electromagnetic coil through wires.

[0007] Furthermore, the lower end of the dolphin robotic arm is provided with a base, which is fixedly installed at the middle of the upper end of the movable seat, that is, the movable seat and the dolphin robotic arm are integrated to facilitate movement operation.

[0008] Furthermore, guide rods are fixedly installed inside the guide rail on both the left and right sides of the threaded screw. The guide rods pass through and are slidably connected inside the moving seat, and also serve to support the dolphin robotic arm and the moving seat.

[0009] Furthermore, a fixed frame is fixedly connected to the rear end of the guide rail, and a geared motor is fixedly installed at the upper end of the fixed frame. The rear end of the threaded screw passes through the guide rail and is fixedly connected to the output end of the geared motor. The geared motor provides stable power output and ultimately converts it into a linear motion mode for the dolphin robotic arm.

[0010] Furthermore, a sliding groove is provided on the left end of the guide rail near the upper side, and a fixing plate is fixedly connected to the left end of the movable seat. The fixing plate passes through the sliding groove and a cooling fan is fixedly installed thereon. That is, the fixing plate slides inside the sliding groove, so that the cooling fan can always maintain correspondence with the electromagnet and other structures located on the lower side of the movable seat.

[0011] Furthermore, a through groove is provided at the left end of the guide rail corresponding to the heat dissipation fan, and a heat dissipation window is provided at the right end of the guide rail between the moving base and the low-resistance iron plate. Heat dissipation fins are fixedly installed on the upper end of the low-resistance iron plate on both the left and right sides near the electromagnet. The airflow blown out by the heat dissipation fan can enter the interior of the guide rail through the through groove, and the hot airflow can be discharged to the outside under the drive of the heat dissipation fan through the heat dissipation window.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This dolphin-style robotic arm utilizes the attraction and repulsion principle between an electromagnet and an iron plate to achieve rapid, stable, and flexible fixing and movement of the robotic arm. Compared with traditional fixed robotic arms or robotic arms with complex moving structures, the design of this invention significantly improves the flexibility of the robotic arm, enabling it to easily adapt to different working environments and operational needs. This improvement in flexibility and operational precision gives the robotic arm a wider range of application prospects in the fields of industrial automation and precision manufacturing.

[0014] 2. This device simplifies the moving structure and utilizes the interaction between the electromagnet and the iron plate to achieve fixation and movement, significantly reducing the complexity and manufacturing cost of the equipment. In addition, by optimizing the heat dissipation structure of the electromagnet, this invention effectively reduces the heat generated by the electromagnet during long-term operation, reducing the risk of equipment failure and damage due to overheating. These designs not only reduce the difficulty and cost of equipment maintenance, but also improve the service life of the robotic arm. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the present invention.

[0018] In the diagram: 1. Dolphin robotic arm; 2. Guide rail; 3. Base; 4. Moving seat; 5. Threaded screw; 6. Guide rod; 7. Fixing frame; 8. Gear motor; 9. Electromagnet; 10. Ear plate; 11. Fixing rod; 12. Low resistance iron plate; 13. Wiring terminal; 14. Slide groove; 15. Fixing plate; 16. Cooling fan; 17. Through groove; 18. Heat dissipation window; 19. Heat dissipation fins. Detailed Implementation

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

[0020] Please see Figures 1-3A dolphin-type robotic arm includes a dolphin-type robotic arm 1, a guide rail 2, an electromagnet 9, and an external power supply. A threaded screw 5 is rotatably mounted in the center of the guide rail 2. A movable seat 4 is threaded through and connected to the outer side of the threaded screw 5. Ear plates 10 are fixedly connected to the center of both the front and rear ends of the electromagnet 9. Fixed rods 11 are fixedly connected to the lower end of the movable seat 4 near the center of both the front and rear sides. The ear plates 10 are slidably sleeved on the outer side of the fixed rods 11. A low-resistance iron plate 12 is fixedly mounted on the inner bottom of the guide rail 2. The fixed rods 11 and the low-resistance iron plate 12 are in contact. The middle portions of both the front and rear ends of the low-resistance iron plate 12 are threaded through... The guide rail 2 is equipped with a wiring terminal 13. An electromagnetic coil is installed inside the low-resistance iron plate 12. The wiring terminal 13 forms a closed circuit with an external power supply and the electromagnetic coil via wires. When the dolphin robotic arm 1 is moved to the target position, the electromagnet 9 is energized to generate a magnetic field, causing the electromagnet 9 to attract and fix itself to the low-resistance iron plate 12. Alternatively, the wiring terminal 13 can be designed to allow an external power supply to energize the electromagnetic coil inside the low-resistance iron plate 12, generating repulsive magnetic poles that attract the electromagnet 9. Based on the principle of opposite poles attracting, this achieves a stronger magnetic attraction, significantly improving... This design improves the stability of the moving base 4, base 3, and dolphin robotic arm 1, preventing vibrations caused by forces during operation. It also effectively reduces wear on the lead screw 5 caused by the moving base 4, ensuring the accuracy and lifespan of the dolphin robotic arm 1. Furthermore, when adjustment is needed, the direction of the current in the electromagnetic coil from the external power supply is changed to generate the same magnetic pole as the electromagnet 9. This causes the low-resistance iron plate 12 and the electromagnet 9 to switch from an attractive state to a repulsive state. Under this repulsive force, the electromagnet 9 can be separated from the low-resistance iron plate 12, while the electromagnet 9 is in a state of... In its suspended state, when the moving base 4 and electromagnet 9 are moved by turning on the reduction motor 8, friction between the electromagnet 9 and the low-resistance iron plate 12 is avoided, ensuring the normal use of the electromagnet 9's magnetism and preventing the weakening of magnetism from affecting the stability of the device. Similarly, by disconnecting the power supply to the low-resistance iron plate 12 or changing the current direction to restore it to the opposite magnetic pole to the electromagnet 9, fixation can be quickly completed. This makes the dolphin robotic arm 1 more fluid during mobile operations, improves the accuracy of operation, and allows it to be fixed at any position within the guide rail 2, making it more flexible and versatile.

[0021] Please see Figure 1The lower end of the dolphin robotic arm 1 is equipped with a base 3, which is fixedly installed at the upper middle of the movable seat 4. Inside the guide rail 2, guide rods 6 are fixedly installed on both sides of the threaded screw 5. The guide rods 6 pass through and slide inside the movable seat 4. The rear end of the guide rail 2 is fixedly connected to a fixing frame 7, and the upper end of the fixing frame 7 is fixedly installed with a reduction motor 8. The rear end of the threaded screw 5 passes through the guide rail 2 and is fixedly connected to the output end of the reduction motor 8. This dolphin robotic arm 1 achieves high-precision positioning and orientation through sensors and a control system. With the cooperation of the end effector, it can accurately adjust the force and gripping method according to the shape and weight of the object. During use, turning on the reduction motor 8 can drive the threaded screw 5 to rotate. Under the limiting and supporting effect of the guide rods 6, the rotation of the threaded screw 5 can drive the movable seat 4 to move. Thus, the movement of the movable seat 4 drives the base 3 to move the dolphin robotic arm 1, increasing the application scenarios of the dolphin robotic arm 1.

[0022] Please see Figures 1-3 The left end of the guide rail 2 has a slide groove 14 near the upper side. The left end of the movable seat 4 is fixedly connected to a fixing plate 15. The fixing plate 15 passes through the slide groove 14 and is fixedly installed with a cooling fan 16. The left end of the guide rail 2 has a through groove 17 corresponding to the cooling fan 16. The right end of the guide rail 2 has a heat dissipation window 18 between the movable seat 4 and the low-resistance iron plate 12. The upper end of the low-resistance iron plate 12 has heat dissipation fins 19 fixedly installed on both the left and right sides near the electromagnet 9. When the cooling fan 16 integrated through the fixing plate 15 is turned on... 6. Airflow can be continuously directed at the connection between the electromagnet 9 and the low-resistance iron plate 12 for heat dissipation. At the same time, when the electromagnet 9 and the low-resistance iron plate 12 are in contact, some heat will be transferred to the low-resistance iron plate 12, thereby reducing the heat generated by the electromagnet 9 during long-term operation. The heat dissipation fins 19 can not only absorb and improve the internal heat of the low-resistance iron plate 12, but also significantly improve the heat dissipation effect of the low-resistance iron plate 12 under the action of the cooling fan 16, ensuring the integrity of this technical solution.

[0023] Working principle: By turning on the geared motor 8, its output end drives the threaded screw 5 to rotate. Under the limiting and supporting action of the guide rod 6, the rotation of the threaded screw 5 drives the moving seat 4 to move. The movement of the moving seat 4 then drives the base 3, causing the dolphin robotic arm 1 to move. After reaching the target position, energizing the electromagnet 9 generates a magnetic field, causing the electromagnet 9 to attract and fix itself to the low-resistance iron plate 12. Alternatively, the design of the wiring terminal 13 allows an external power supply to energize the electromagnetic coil inside the low-resistance iron plate 12, generating repulsive magnetic poles that attract the electromagnet 9. Based on the principle of opposite poles attracting, this achieves a stronger magnetic attraction, greatly improving the stability of the moving seat 4, base 3, and dolphin robotic arm 1. When adjustment is needed... By changing the direction of the current in the electromagnetic coil from the external power supply, it generates the same magnetic pole as the electromagnet 9, thereby switching the attraction between the low-resistance iron plate 12 and the electromagnet 9 to a repulsive state, separating the electromagnet 9 from the low-resistance iron plate 12. At the same time, the electromagnet 9 is in a suspended state. Finally, the cooling fan 16 integrated through the fixing plate 15 is turned on, which can always blow air to cool the connection between the electromagnet 9 and the low-resistance iron plate 12. At the same time, when the electromagnet 9 is in contact with the low-resistance iron plate 12, it will also transfer some heat to the low-resistance iron plate 12. The heat dissipation fins 19 can not only absorb and increase the internal heat of the low-resistance iron plate 12, but also significantly improve the heat dissipation effect of the low-resistance iron plate 12 under the action of the cooling fan 16.

Claims

1. A dolphin-type robotic arm, comprising a dolphin robotic arm (1), a guide rail (2), an electromagnet (9), and an external power supply, characterized in that: A threaded screw (5) is rotatably installed in the middle of the inner side of the guide rail (2). A movable seat (4) is threaded through and connected to the outer side of the threaded screw (5). Ear plates (10) are fixedly connected to the middle of the front and rear ends of the electromagnet (9). A fixed rod (11) is fixedly connected to the lower end of the movable seat (4) near the middle of the front and rear sides. The ear plates (10) are slidably sleeved on the outer side of the fixed rod (11). A low-resistance iron plate (12) is fixedly installed in the inner bottom of the guide rail (2). The fixed rod (11) and the low-resistance iron plate (12) are in contact. The middle part of the front and rear ends of the low-resistance iron plate (12) passes through the guide rail (2) and is provided with a terminal (13). An electromagnetic coil is provided inside the low-resistance iron plate (12). The terminal (13) forms a closed circuit with the external power supply and the electromagnetic coil through the wire.

2. The dolphin-type robotic arm according to claim 1, characterized in that: The lower end of the dolphin robotic arm (1) is provided with a base (3), which is fixedly installed at the middle of the upper end of the movable seat (4).

3. The dolphin-type robotic arm according to claim 1, characterized in that: Inside the guide rail (2), guide rods (6) are fixedly installed on both the left and right sides of the threaded screw (5), and the guide rods (6) pass through and are slidably connected inside the movable seat (4).

4. The dolphin-type robotic arm according to claim 1, characterized in that: The rear end of the guide rail (2) is fixedly connected to a fixing frame (7), and a reduction motor (8) is fixedly installed on the upper end of the fixing frame (7). The rear end of the threaded screw (5) passes through the guide rail (2) and is fixedly connected to the output end of the reduction motor (8).

5. A dolphin-type robotic arm according to claim 1, characterized in that: The left end of the guide rail (2) is provided with a slide groove (14) near the upper side, and the left end of the movable seat (4) is fixedly connected with a fixing plate (15). The fixing plate (15) passes through the slide groove (14) and is fixedly installed with a cooling fan (16).

6. A dolphin-type robotic arm according to claim 5, characterized in that: The left end of the guide rail (2) is provided with a through groove (17) at the corresponding heat dissipation fan (16), and the right end of the guide rail (2) is provided with a heat dissipation window (18) between the moving seat (4) and the low resistance iron plate (12). The upper end of the low resistance iron plate (12) is fixedly installed with heat dissipation fins (19) on both the left and right sides near the electromagnet (9).

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