Mechanical arm with joint motor quick release structure

Abstract

The utility model relates to the technical field of quick release of a built-in motor of a mechanical arm, and discloses a mechanical arm with a quick release structure of a joint motor, which comprises a support arm I, a rotating shaft is fixedly connected outside the support arm I, a double-layer door is rotatably connected outside the rotating shaft, a clamping block is fixedly connected on the inner wall of the double-layer door, and the clamping block is fixedly connected on the inner wall of the double-layer door. A first elastic telescopic rod is fixedly connected to the inner wall of the double-layer door, a clamping groove is formed in the inner wall of the first supporting arm, a sliding rail is arranged on the inner wall of the first supporting arm, and a placing protection frame is arranged on the inner wall of the first supporting arm in a sliding mode. According to the utility model, after the clamping block is pulled out and the double-layer door is rotated, the push rod is pressed to extrude the second elastic telescopic rod, when the front end of the second elastic telescopic rod leaves the inner sliding chute formed in the first support arm, the fixation of the placing protection frame is relieved, and the extruded third elastic telescopic rod provides elastic force to eject the placing protection frame out; the motor can be conveniently and quickly taken out for inspection and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of quick-release technology for built-in motors in robotic arms, and in particular to a robotic arm with a quick-release structure for a joint motor. Background Technology

[0002] A robotic arm with articulated motors is a widely used mechanical device in industrial and automation applications. It simulates the movement structure of a human arm and typically consists of multiple joints and links, each driven by an electric motor. It is widely used in manufacturing, assembly, welding, painting, and material handling to improve production efficiency and precision.

[0003] In existing technologies, some robotic arm devices with articulated motors use these motors to provide power and control the rotation of the joints, thereby changing the angles of each joint and achieving different positions and postures of the robotic arm. Through programming and control systems, the movement trajectory and task execution process of the robotic arm can be preset. However, in some robotic arm devices with articulated motors, the motors are fixed inside the robotic arm, making them inconvenient to disassemble. When the motor malfunctions, such as when it fails to operate due to overheating, it is impossible to quickly remove the motor for repair, leading to production stoppages and reducing overall production efficiency. Utility Model Content

[0004] This invention proposes a robotic arm with a quick-release joint motor structure, which aims to improve the problem in some existing robotic arm devices with joint motors that cannot quickly remove the motor.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A robotic arm with a quick-release joint motor structure includes a support arm, a rotating shaft fixedly connected to the outside of the support arm, a double-layer door rotatably connected to the outside of the rotating shaft, a locking block fixedly connected to the inner wall of the double-layer door, an elastic telescopic rod fixedly connected to the inner wall of the double-layer door, a slot formed in the inner wall of the support arm, a slide rail formed in the inner wall of the support arm, a protective frame slidably mounted on the inner wall of the support arm, a motor slidably connected to the inner wall of the protective frame, an elastic telescopic rod fixedly connected to the outside of the protective frame, an inner sliding groove formed in the inner wall of the support arm, a push rod slidably connected to the inner wall of the sliding groove, and a limiting plate fixedly connected to the outside of the push rod.

[0007] Support arm one is responsible for supporting and connecting other components, providing rigidity and stability to the entire robotic arm. The rotating shaft allows the double-layer door to rotate, achieving the effect of opening and closing. To protect the internal components of the double-layer door, elastic telescopic rod one is used to hold the protective frame placed inside support arm one, ensuring that the protective frame is in the correct position. The locking block engages with the locking slot to ensure the stability of the double-layer door when closed. The slide rail guides the sliding of the protective frame inside support arm one. The motor provides power to the robotic arm, and the front end of elastic telescopic rod two can engage with the inner slide groove to fix the protective frame inside support arm one. The push rod can squeeze the front end of elastic telescopic rod two, causing it to leave the inner slide groove. Limiting plate one limits the sliding range of the push rod and prevents the push rod from sliding out of the inner slide groove.

[0008] As a further description of the above technical solution:

[0009] A limiting plate is fixedly connected to the inner wall of the first support arm, and an elastic telescopic rod is fixedly connected to the inner wall of the first support arm.

[0010] Limiting plate two is used to restrict the depth of the protective frame inside support arm one, ensuring the protective frame is in the optimal position. Elastic telescopic rod three ensures the protective frame can be popped out.

[0011] As a further description of the above technical solution:

[0012] The top of the first support arm is rotatably connected to a receiving block, and the inner wall of the receiving block is rotatably connected to the second support arm.

[0013] The connecting block is used to connect support arm one and support arm two, with support arm two responsible for supporting and connecting other components.

[0014] As a further description of the above technical solution:

[0015] The second support arm is rotatably connected to a rotating disk, and the rotating disk is fixedly connected to a fixing plate.

[0016] In order to drive the connecting disc to rotate, the fixed plate is fixed on the rotating disc to provide the connection point.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the fixing plate is provided with a sliding groove, and a threaded rod is slidably connected to the inner wall of the sliding groove.

[0019] The groove is designed to allow the threaded rod to slide and rotate. The threaded rod is used to move the locking block and is fixed by the nut.

[0020] As a further description of the above technical solution:

[0021] The threaded rod is externally threaded with a nut, and the threaded rod is externally fixed with a locking block.

[0022] The nut is used to fix the threaded rod, and the locking block is used to insert into the slide groove and the disc groove. After rotation, it is locked by the disc groove.

[0023] As a further description of the above technical solution:

[0024] The card block is slidably connected to a connecting disc, and the inner wall of the connecting disc is provided with a sliding groove and a disc groove.

[0025] The connecting disc is rotated to connect with the rotating disc. The slide groove and the disc groove are used to allow the locking block to pass through. After rotating, the block is locked in place.

[0026] As a further description of the above technical solution:

[0027] The inner wall of the first support arm is provided with an insertion hole, and two wires are fixedly connected to the outside of the protective frame. One end of each of the two wires is inserted into the inner wall of the insertion hole.

[0028] The socket is for connecting wires, which transmit power from the motor to the support arm.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, after pulling out the locking block and rotating the double-layer door, press the push rod to squeeze the elastic telescopic rod two. When the front end of the elastic telescopic rod two leaves the inner sliding groove opened in the support arm one, the fixation of the protective frame is released. The squeezed elastic telescopic rod three provides elastic force, allowing the protective frame to pop out, thus achieving the effect of conveniently and quickly taking out the motor for inspection and maintenance.

[0031] 2. In this utility model, the locking block is inserted into the second groove of the connecting disc until it can no longer be inserted into the groove. Then, the threaded rod is rotated, causing the locking block to rotate, and the nut is tightened. This fixes the threaded rod, preventing it from rotating further, while the locking block is stuck inside the groove and cannot pass through the second groove. This achieves the effect of fixing the rotating disc and the connecting disc, facilitating disassembly and installation. Attached Figure Description

[0032] Figure 1 This is a perspective view of a robotic arm with a quick-release joint motor structure proposed in this utility model;

[0033] Figure 2 This is a schematic diagram of a double-door structure for a robotic arm with a quick-release joint motor, as proposed in this utility model.

[0034] Figure 3This is a schematic diagram of the elastic telescopic rod of a robotic arm with a quick-release joint motor structure proposed in this utility model.

[0035] Figure 4 This is a schematic diagram of a protective frame structure for placing a robotic arm with a quick-release joint motor, as proposed in this utility model.

[0036] Figure 5 This is a schematic diagram of the elastic telescopic rod of a robotic arm with a quick-release joint motor structure proposed in this utility model.

[0037] Figure 6 This is a schematic diagram of the rotating disk structure of a robotic arm with a quick-release joint motor, as proposed in this utility model.

[0038] Figure 7 This is a schematic diagram of the threaded rod structure of a robotic arm with a quick-release joint motor, as proposed in this utility model.

[0039] Legend:

[0040] 1. Support arm one; 2. Rotating shaft; 3. Double door; 4. Clamping block; 5. Elastic telescopic rod one; 6. Slot; 7. Slide rail; 8. Placement protective frame; 9. Elastic telescopic rod two; 10. Motor; 11. Wire; 12. Push rod; 13. Limiting plate one; 14. Limiting plate two; 15. Elastic telescopic rod three; 16. Receiving block; 17. Support arm two; 18. Rotating disk; 19. Connecting disk; 20. Disk groove; 21. Fixing plate; 22. Threaded rod; 23. Clamping block; 24. Nut. Detailed Implementation

[0041] 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.

[0042] Reference Figures 1 to 3This utility model provides an embodiment of a robotic arm with a quick-release joint motor structure, including a support arm 1, which supports and connects other components, providing rigidity and stability to the entire robotic arm. A rotating shaft 2 is fixedly connected to the outside of the support arm 1 to allow a double-layer door 3 to rotate, achieving the opening and closing effect. The double-layer door 3 is rotatably connected to the outside of the rotating shaft 2 to protect internal components and facilitate quick disassembly and assembly of the motor 10. A locking block 4 is fixedly connected to the inner wall of the double-layer door 3, and an elastic telescopic rod 5 is fixedly connected to the inner wall of the double-layer door 3 to abut against a protective frame 8 placed inside the support arm 1, ensuring the protective frame 8 is in a suitable position. A slot 6 is provided on the inner wall of the support arm 1, along with the locking block. 4 engages with slot 6 to ensure the stability of the double door 3 when closed. A slide rail 7 is provided on the inner wall of support arm 1 to guide the sliding of the protective frame 8 inside support arm 1, ensuring smooth installation and removal of motor 10. The protective frame 8 slides on the inner wall of support arm 1 to hold motor 10 and facilitates its entry and exit from the support arm 1 through the slide rail 7. Motor 10 is slidably connected to the inner wall of the protective frame 8. To provide power to the robotic arm, a flexible telescopic rod 9 is fixedly connected to the outside of the protective frame 8. Its front end can engage with the inner slide groove to fix the protective frame 8 inside support arm 1. The inner wall of support arm 1 has an inner slide groove to hold the front end of the flexible telescopic rod 9 and guide push rod 12. The inner wall of the slide groove is slidably connected to a push rod 12, which can squeeze the front end of the elastic telescopic rod 9 and make it leave the inner slide groove. The push rod 12 is fixedly connected to a limiting plate 13 to limit the sliding range of the push rod 12 and prevent the push rod 12 from sliding out of the inner slide groove.

[0043] Reference Figures 3 to 5 A limiting plate 2 14 is fixedly connected to the inner wall of the support arm 1 to limit the depth of the protective frame 8 entering the interior of the support arm 1 and to keep the protective frame 8 in the optimal position. An elastic telescopic rod 3 15 is fixedly connected to the inner wall of the support arm 1 to ensure that the protective frame 8 can be popped out after being released for easy disassembly. An insertion hole is provided on the inner wall of the support arm 1 for connecting the wires 11. Two wires 11 are fixedly connected to the outside of the protective frame 8 to transmit the power of the motor 10 to the support arm 1.

[0044] Reference Figure 6 , Figure 7A receiving block 16 is rotatably connected to the top of support arm 1, which is used to connect support arm 1 and support arm 2 17. Support arm 2 17 is rotatably connected to the inner wall of the receiving block 16, which is responsible for supporting and connecting other components. A rotating disk 18 is rotatably connected to the outside of support arm 2 17. In order to drive the connecting disk 19 to rotate, a fixing plate 21 is fixedly connected to the outside of the rotating disk 18, which provides a connection point. A sliding groove is opened on the inner wall of the fixing plate 21. In order to allow the threaded rod 22 to pass through the fixing plate 21, the threaded rod 22 is slidably connected to the inner wall of the sliding groove, and a locking block is connected by a nut 24. 23. To fix the connecting disc 19, the threaded rod 22 is externally threaded with a nut 24 for fixing the threaded rod 22. The threaded rod 22 is externally fixedly connected with a locking block 23 for passing through the second slide groove and entering the disc groove 20. After rotation, it cannot exit from the second slide groove. The locking block 23 is externally slidably connected to the connecting disc 19. In order to connect with the rotating disc 18, it is rotated. The inner wall of the connecting disc 19 is provided with a second slide groove and a disc groove 20. The second slide groove allows the locking block 23 to pass through. After entering the disc groove 20 and rotating, it is locked.

[0045] Working principle: To install the motor 10 on the robotic arm, firstly, open the double-layer door 3. The double-layer door 3 is opened by rotating the shaft 2. At this time, the double-layer door 3 drives the locking block 4 to be pulled out of the slot 6. Press the push rod 12 to squeeze the front end of the elastic telescopic rod 9, causing it to leave the inner slide groove and release the fixation on the placement protective frame 8. Then, place the motor 10 into the placement protective frame 8. Press the elastic telescopic rods 9 on both sides to slide the placement protective frame 8 into the interior of the support arm 1 along the slide rail 7 inside the support arm 1. After the placement protective frame 8 slides into the predetermined position, it is blocked by the limiting plate 14 and cannot move forward. The front ends of the elastic telescopic rods 9 on both sides are precisely engaged in the inner slide groove of the inner wall of the support arm 1, fixing the placement protective frame 8 inside the support arm 1. Insert the other end of the wire 11 of the motor 10 into the socket of the support arm 1 to provide power to the robotic arm. Close the double door 3, let the locking block 4 re-insert into the slot 6, let the elastic telescopic rod 5 abut against the protective frame 8, and fix the motor 10 inside the support arm 1 to provide power to the robotic arm.

[0046] To disassemble the motor 10 for repair, the double door 3 needs to be opened first, the locking block 4 separates from the slot 6, the push rod 12 is pressed, and the front end of the elastic telescopic rod 9 is squeezed to make it leave the inner slide groove, thus releasing the fixation on the placement protection frame 8. At the same time, the limiting plate 13 restricts the sliding range of the push rod 12 to prevent the push rod 12 from sliding out of the inner slide groove. Meanwhile, the elastic telescopic rod 3 15 pops out the unfixed placement protection frame 8, making it easy to disassemble and inspect for repair.

[0047] To connect the rotating disk 18 and the connecting disk 19, align the locking block 23 connected to the threaded rod 22 with the second groove opened on the connecting disk 19, and insert the locking block 23 into the second groove until the locking block 23 enters the disk groove 20. Rotate the threaded rod 22 to drive the locking block 23 to rotate, so that the locking block 23 cannot pass through the second groove and is locked in the disk groove 20. At this time, tighten the nut 24 to prevent the threaded rod 22 from rotating, and fix the rotating disk 18 and the connecting disk 19 in place.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A robotic arm with a quick-release joint motor structure, comprising a support arm (1), characterized in that: The external of the support arm (1) is fixedly connected to a rotating shaft (2), the external of the rotating shaft (2) is rotatably connected to a double door (3), the inner wall of the double door (3) is fixedly connected to a locking block (4), the inner wall of the double door (3) is fixedly connected to an elastic telescopic rod (5), the inner wall of the support arm (1) is provided with a slot (6), the inner wall of the support arm (1) is provided with a slide rail (7), the inner wall of the support arm (1) is slidably connected to a protective frame (8), the inner wall of the protective frame (8) is slidably connected to a motor (10), the external of the protective frame (8) is fixedly connected to an elastic telescopic rod (9), the inner wall of the support arm (1) is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a push rod (12), and the external of the push rod (12) is fixedly connected to a limiting plate (13).

2. The robotic arm with a quick-release joint motor structure according to claim 1, characterized in that: The inner wall of the first support arm (1) is fixedly connected to a second limiting plate (14), and the inner wall of the first support arm (1) is fixedly connected to a third elastic telescopic rod (15).

3. A robotic arm with a quick-release joint motor structure according to claim 1, characterized in that: The top of the first support arm (1) is rotatably connected to a receiving block (16), and the inner wall of the receiving block (16) is rotatably connected to a second support arm (17).

4. A robotic arm with a quick-release joint motor structure according to claim 3, characterized in that: The outer side of the second support arm (17) is rotatably connected to a rotating disk (18), and the outer side of the rotating disk (18) is fixedly connected to a fixing plate (21).

5. A robotic arm with a quick-release joint motor structure according to claim 4, characterized in that: The inner wall of the fixing plate (21) is provided with a sliding groove, and a threaded rod (22) is slidably connected to the inner wall of the sliding groove.

6. A robotic arm with a quick-release joint motor structure according to claim 5, characterized in that: The threaded rod (22) is externally threaded with a nut (24), and the threaded rod (22) is externally fixed with a locking block (23).

7. A robotic arm with a quick-release joint motor structure according to claim 6, characterized in that: The card block (23) is slidably connected to a connecting disc (19), and the inner wall of the connecting disc (19) is provided with a sliding groove and a disc groove (20).

8. A robotic arm with a quick-release joint motor structure according to claim 1, characterized in that: The inner wall of the support arm (1) is provided with an insertion hole, and two wires (11) are fixedly connected to the outside of the protective frame (8), with one end of each of the two wires (11) inserted into the inner wall of the insertion hole.

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