Bionic mechanical arm capable of being rapidly replaced

Abstract

A bionic mechanical arm capable of being quickly replaced belongs to the technical field of mechanical arms and comprises a mechanical arm body and a mounting frame, a rotating ring is rotationally connected into the mounting frame, a connecting block is fixedly mounted at one end of the mechanical arm body, and a limiting shell located in the rotating ring is arranged on one side of the connecting block. A first connecting plate extrudes a first spring, then a first limiting block enters a rotating ring to complete installation, when the device needs to be disassembled, an air cylinder can be driven again to enable an output shaft of the air cylinder to push a hinge block to move upwards, and then an extrusion block can be far away from the surface of the first connecting plate; and the compressed first spring can push the first limiting block to retract into the limiting shell, then the first limiting block can be disassembled, finally, the extrusion block ascends or descends through the driving air cylinder, then the mechanical arm body can be quickly disassembled and assembled, and the maintenance efficiency and flexibility are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical arms, and in particular to a bionic mechanical arm that can be quickly replaced. Background Art

[0002] A bionic robotic arm is a highly complex robotic system that mimics the structure and function of a human arm and consists of multiple joints and actuators to perform complex tasks; At present, traditional bionic robotic arms are usually firmly mounted on robots or mechanical platforms to perform a series of complex automated tasks from precision assembly to heavy object handling. However, in actual application, bionic robotic arms will inevitably face problems of wear and aging. Long-term continuous work, especially in harsh or extreme working environments, will accelerate the wear of various components of the robotic arm, including joints, transmission systems, sensors, and connecting parts. Once these components are severely worn or fail, the entire robotic arm needs to be disassembled, replaced or maintained to ensure its continued stable working performance. Traditional installation methods, such as fixing with bolts or pins, although to a certain extent ensure the stability and reliability of the robotic arm, this fixing method usually requires the use of professional tools and requires a certain level of technical skills and operating experience, thereby increasing the speed of disassembly and installation. In addition, loosening or damage of bolts or pins may also cause instability or failure of the robotic arm during operation, further reducing the flexibility and reliability of the equipment. Summary of the invention

[0003] In order to solve the problem in the above background technology that the speed of disassembly and installation is increased, while the flexibility and reliability of the equipment are reduced, the present invention provides a bionic mechanical arm that can be quickly replaced.

[0004] A bionic mechanical arm that can be quickly replaced comprises a mechanical arm body and a mounting frame, wherein a rotating ring is rotatably connected inside the mounting frame, a connecting block is fixedly mounted on one end of the mechanical arm body, and a limiting shell located inside the rotating ring is arranged on one side of the connecting block; A fixing mechanism is arranged on both sides inside the limiting shell, and the fixing mechanism includes a first spring, and the first springs are fixedly connected to both sides inside the limiting shell, and two first connecting plates are fixedly installed on one side of the first spring close to the center of the limiting shell, and the first limiting blocks located inside the rotating ring are fixedly installed on the opposite sides of the two first connecting plates, and the inner cavity of the limiting shell is fixedly installed with a limiting plate, and the surface of the limiting plate is slidably sleeved with an extrusion block, and a slide groove is provided on one side of the extrusion block, and the inner cavity of the limiting shell is rotatably connected with a push rod, and a slider located inside the slide groove is fixedly installed on one side of the push rod, and the push rod is hinged with a hinge block inside, and the inner cavity of the limiting shell is fixedly installed with a cylinder, and the output end of the cylinder is fixedly connected to the bottom end of the hinge block.

[0005] It also includes a pop-up mechanism, which is arranged on the other side of the extrusion block. The pop-up mechanism includes a rack, which is fixedly connected to the other side of the extrusion block. One side of the interior of the limiting shell is rotatably connected to a first gear meshing with the rack. One side of the first gear is fixedly installed with a first screw rod, and a threaded block is threadedly sleeved on the surface of the first screw rod. A square shell is fixedly installed on the top of the threaded block, and a second spring is fixedly installed inside the square shell. A moving block located inside the square shell is fixedly installed on one side of the second spring, and a contact block is fixedly installed on one side of the moving block.

[0006] The cam is provided with a second stop block which is fixedly mounted on one side of the limit shell, and a second gear which is meshed with the second gear is fixedly mounted on the output end of the limit shell.

[0007] Preferably, a second connecting plate located inside the fixed shell is fixedly installed at one end of the second screw rod, square grooves are opened on both sides of the fixed shell, and square blocks located inside the square grooves are fixedly installed at both ends of the surface of the second connecting plate.

[0008] Preferably, both sides of the limiting shell are provided with limiting grooves, the limiting grooves are slidably connected with third limiting blocks, and the sides of the third limiting blocks close to the surface of the fixed shell are fixedly connected to the surface of the square plate.

[0009] Preferably, a support plate is fixedly installed on one side of the interior of the limiting shell, a support block is slidably sleeved on the surface of the support plate, and the bottom end of the support block is fixedly connected to the surface of the square shell.

[0010] Preferably, the first limit blocks are designed to be longitudinally symmetrical about the center of the limit shell, and surfaces of the two first limit blocks facing each other are both chamfered.

[0011] Preferably, both sides of the bottom end of the extrusion block are chamfered, one side of the two first connecting plates are chamfered, and the chamfers of the first connecting plates are parallel to the chamfers of the extrusion block.

[0012] Preferably, the slider is cylindrical in design, the surface of the slider fully fits the inner wall of the slide groove, and the slider is smooth in design.

[0013] Preferably, a gap is provided between the first gear and the extrusion block, and the first gear is located at the top end of the first connecting plate.

[0014] Working principle and working process of the present invention: First, the operator can insert the limit shell into the rotating ring, and then drive the cylinder to make its output shaft pull the hinge block down, the hinge block will pull the push rod and the slider to rotate, the slider will move inside the slide slot, and then the push rod will push the extrusion block down, and then the extrusion block will squeeze and push the first connecting plate and the first limit block to move toward each other, and the first connecting plate will squeeze the first spring, and then the first limit block will enter the inside of the rotating ring, thereby completing the installation. When it needs to be disassembled, the cylinder can be driven again to make its output shaft push the hinge block upward, and then the extrusion block will move away from the surface of the first connecting plate, and the compressed first spring will push the first limit block to shrink to the inside of the limit shell, and then it can be disassembled. When the extrusion block rises, the rack will move upward, the moving rack will drive the first gear and the first screw to rotate, then the threaded block will move on the surface of the first screw, the threaded block will drive the square shell, the moving block and the contact block to move, when the square shell moves, the support block will move on the surface of the support plate, so as to support and limit the square shell, then the contact block will move out of the interior of the limiting shell and contact with the interior of the rotating ring, then the contact block will push the moving block to squeeze the second spring, and when the first limiting block cancels the limiting of the limiting shell, the compressed second spring will push the limiting shell to move out of the interior of the rotating ring, thereby improving the efficiency of replacing the robot arm; When it is necessary to maintain the components inside the limit shell, the bidirectional motor can be driven to rotate the third gear, and the third gear will drive the second gear to rotate. When the second gear rotates, the second screw rod will move inside the second gear, and the square block will move inside the square groove, thereby limiting the second screw rod. Then the second screw rod will pull the square plate and the second limit block, and then the second limit block will move away from the inside of the plug block, thereby canceling the limit on the plug block. Then the operator can remove the limit shell to maintain the components inside it, and finally complete the operation process.

[0015] Beneficial effects of the present invention: The present invention drives the cylinder to make its output shaft pull the hinge block down, the hinge block will pull the push rod and the slider to rotate, the slider will move inside the slide slot, and then the push rod will push the extrusion block down, and then the extrusion block will squeeze and push the first connecting plate and the first limit block to move toward each other, and the first connecting plate will squeeze the first spring, and then the first limit block will enter the inside of the rotating ring, so as to complete the installation, and when it is necessary to disassemble it, the cylinder can be driven again to make its output shaft push the hinge block to move up, and then the extrusion block will be away from the surface of the first connecting plate, and the compressed first spring will push the first limit block to shrink to the inside of the limit shell, so that it can be disassembled, and finally the extrusion block is driven by the cylinder to rise or fall, so that the mechanical arm body can be quickly disassembled and installed, thereby improving maintenance efficiency and flexibility; The present invention links the rack to move upward when the extrusion block rises, and the moving rack drives the first gear and the first screw rod to rotate, then the threaded block moves on the surface of the first screw rod, and the threaded block drives the square shell, the moving block and the contact block to move, and when the square shell moves, the support block moves on the surface of the support plate, thereby supporting and limiting the square shell, and then the contact block moves out of the interior of the limiting shell and contacts with the interior of the rotating ring, and then the contact block pushes the moving block to squeeze the second spring, and when the first limiting block cancels the limiting of the limiting shell, the compressed second spring pushes the limiting shell to move out of the interior of the rotating ring, and finally the extrusion block links the rack to rise, and then the compressed second spring pushes the limiting shell to move out of the interior of the rotating ring, thereby improving the efficiency of the robot arm replacement, reducing the need for manual intervention, and reducing the safety risks during operation; The present invention drives the bidirectional motor to rotate the third gear, and the third gear drives the second gear to rotate. When the second gear rotates, the second screw rod moves inside the second gear, and the square block moves inside the square groove, thereby limiting the second screw rod. Then the second screw rod pulls the square plate and the second limit block, and then the second limit block moves away from the inside of the plug block, thereby canceling the limit on the plug block. Then the operator can remove the limit shell to maintain the internal components. Finally, the bidirectional motor is driven to make the second screw rod push the square plate and the second limit block to move, so that it is convenient for the operator to disassemble the limit shell, thereby improving the convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of a cross-sectional view of a rotating ring of the present invention; Figure 3 It is a schematic diagram of a cross-sectional limiting shell of the present invention; Figure 4 It is a schematic diagram showing the fixing mechanism of the present invention; Figure 5 This is a schematic diagram of a cross-sectional square shell of the present invention; Figure 6 This is a schematic diagram of a cross-sectional connection block of the present invention; Figure 7 It is a schematic diagram of a cross-sectional fixed shell of the present invention; Figure 8 For the present invention Figure 7 A is an enlarged schematic diagram.

[0017] In the figure: 1. Robot arm body; 2. Mounting frame; 3. Rotating ring; 4. Connecting block; 5. Limiting shell; 6. First spring; 7. First connecting plate; 8. First limiting block; 9. Limiting plate; 10. Extrusion block; 11. Push rod; 12. Slide groove; 13. Sliding block; 14. Articulated block; 15. Cylinder; 16. Rack; 17. First gear; 18. First screw rod; 19. Threaded block; 20. Square shell; 21. Second spring; 22. Moving block; 23. Contact block; 24. Inserting block; 25. Fixed shell; 26. Second screw rod; 27. Second gear; 28. Square plate; 29. ​​Second limiting block; 30. Bidirectional motor; 31. Third gear; 32. Second connecting plate; 33. Square groove; 34. Square block; 35. Limiting groove; 36. Third limiting block; 37. Support plate; 38. Support block. DETAILED DESCRIPTION

[0018] See also Figures 1 to 8 Shown is an embodiment of the present invention.

[0019] A bionic mechanical arm that can be quickly replaced comprises a mechanical arm body 1 and a mounting frame 2, wherein a rotating ring 3 is rotatably connected inside the mounting frame 2, a connecting block 4 is fixedly mounted on one end of the mechanical arm body 1, and a limiting shell 5 located inside the rotating ring 3 is arranged on one side of the connecting block 4; A fixing mechanism is arranged on both sides inside the limiting shell 5, and the fixing mechanism includes a first spring 6, which is fixedly connected to both sides inside the limiting shell 5, and two first connecting plates 7 are fixedly installed on one side of the first spring 6 close to the center of the limiting shell 5, and the first limiting blocks 8 located inside the rotating ring 3 are fixedly installed on the opposite sides of the two first connecting plates 7, and the inner cavity of the limiting shell 5 is fixedly installed with a limiting plate 9, and the surface of the limiting plate 9 is slidably sleeved with an extrusion block 10, and a slide groove 12 is provided on one side of the extrusion block 10, and the inner cavity of the limiting shell 5 is rotatably connected with a push rod 11, and a slider 13 located inside the slide groove 12 is fixedly installed on one side of the push rod 11, and a hinge block 14 is hinged inside the push rod 11, and a cylinder 15 is fixedly installed in the inner cavity of the limiting shell 5, and the output end of the cylinder 15 is fixedly connected to the bottom end of the hinge block 14.

[0020] The operator inserts the limit shell 5 into the interior of the rotating ring 3, and then the cylinder 15 can be driven, and then the output shaft of the cylinder 15 will pull the hinge block 14 down. Since the hinge block 14 is hinged with the push rod 11, the moving hinge block 14 will pull the push rod 11 to rotate, and the push rod 11 will drive the slider 13 to move inside the slide groove 12, and then the push rod 11 and the slider 13 will push the extrusion block 10 to drop on the surface of the limit plate 9, and then the two sides of the bottom end of the limit plate 9 will contact the surface of the first connecting plate 7, and then the limit plate 9 will squeeze the two first connecting plates 7 to move toward each other. When the first connecting plate 7 moves, the first spring 6 will be compressed, and then the first connecting plate 7 will push the first limit block 8 into the interior of the rotating ring 3, and then the limit shell 5 can be fixed inside the rotating ring 3, thereby completing the installation of the robot arm body 1; When disassembly is required, the cylinder 15 can be driven to make its output shaft push the hinge block 14 to rise, and then the hinge block 14 will push the push rod 11 to reset, and the push rod 11 and the slider 13 will push the extrusion block 10 away from the surface of the first connecting plate 7, and then the compressed first spring 6 will push the first limit block 8 away from the inside of the rotating ring 3, and then the limit shell 5 can be limited to complete the disassembly, and finally the extrusion block 10 can be raised or lowered by driving the cylinder 15, so that the robot arm body 1 can be quickly disassembled and installed, thereby improving maintenance efficiency and flexibility.

[0021] like Figure 3 and Figure 5 As shown, it also includes: a pop-up mechanism, which is arranged on the other side of the extrusion block 10, and the pop-up mechanism includes a rack 16, the rack 16 is fixedly connected to the other side of the extrusion block 10, and one side of the interior of the limiting shell 5 is rotatably connected to a first gear 17 meshing with the rack 16, and one side of the first gear 17 is fixedly installed with a first screw rod 18, and the surface of the first screw rod 18 is threadedly sleeved with a thread block 19, and the top of the thread block 19 is fixedly installed with a square shell 20, and the interior of the square shell 20 is fixedly installed with a second spring 21, and one side of the second spring 21 is fixedly installed with a moving block 22 located inside the square shell 20, and one side of the moving block 22 is fixedly installed with a contact block 23.

[0022] Through the design of the pop-up mechanism, when the extrusion block 10 is driven to fix the first limit block 8 to the robot body 1, the extrusion block 10 will drive the rack 16 to descend, because the rack 16 is meshed with the first gear 17, and the moving rack 16 will drive the first gear 17 to rotate, and the first gear 17 will drive the first screw rod 18 to rotate. Since the first screw rod 18 is threadedly connected with the thread block 19, the thread block 19 will move on the surface of the first screw rod 18, and the thread block 19 will drive the square shell 20, the moving block 22 and the contact block 23 to move, and then the contact block 23 will shrink to the inside of the limit shell 5; When the extrusion block 10 rises to cancel the fixation of the robot arm body 1, the extrusion block 10 will drive the rack 16 to rise, the rack 16 will drive the first gear 17 and the first screw rod 18 to rotate, the threaded block 19 will move on the surface of the first screw rod 18, the threaded block 19 will drive the square shell 20, the moving block 22 and the contact block 23 to move, and then the contact block 23 will move out of the interior of the limit shell 5 and will contact the inner wall of the rotating ring 3. While in contact, the contact block 23 will push the moving block 22 to shrink into the interior of the square shell 20 and squeeze the second spring 21. When the first limit block 8 cancels the fixation of the limit shell 5, the compressed second spring 21 will reset, and then the second spring 21 will push the limit shell 5 out of the interior of the rotating ring 3. Finally, the rack 16 will rise through the extrusion block 10 linkage, and then the compressed second spring 21 will push the limit shell 5 out of the interior of the rotating ring 3, thereby improving the efficiency of robot arm replacement, reducing the need for manual intervention, and reducing safety risks during operation.

[0023] like Figure 6 , Figure 7 and Figure 8 As shown, it also includes a limiting mechanism, which is arranged inside the limiting shell 5. The limiting mechanism includes a fixed shell 25, which is fixedly connected to the inside of the limiting shell 5. A plug block 24 located inside the limiting shell 5 is fixedly installed on one side of the limiting shell 5. A second screw rod 26 is slidably connected inside the fixed shell 25. Both ends of the fixed shell 25 are rotatably connected to a second gear 27 located on the surface of the second screw rod 26, and the second gear 27 is threadedly connected to the second screw rod 26. A square plate 28 is rotatably sleeved on the surface of one end of the second screw rod 26, and a second limiting block 29 located inside the plug block 24 is fixedly installed on one side of the square plate 28. A bidirectional motor 30 is fixedly installed inside the limiting shell 5, and a third gear 31 meshing with the second gear 27 is fixedly installed on the output end of the bidirectional motor 30.

[0024] Through the design of the limiting mechanism, when it is necessary to disassemble the limiting shell 5, the bidirectional motor 30 can be driven to rotate the third gear 31. Because the third gear 31 and the second gear 27 rotate, the third gear 31 will drive the second gear 27 to rotate. Since the second gear 27 is threadedly connected with the second screw rod 26, entering the second screw rod 26 will move inside the second gear 27. The second screw rod 26 will pull the square plate 28 and the second limiting block 29 to move, and then the second limiting block 29 will be away from the inside of the plug block 24, so that the limiting of the limiting shell 5 can be cancelled, and then the limiting shell 5 can be removed, and its internal components can be maintained. Finally, the bidirectional motor 30 is driven to make the second screw rod 26 push the square plate 28 and the second limiting block 29 to move, so that it is convenient for the operator to disassemble the limiting shell 5, thereby improving the convenience of the equipment. After the maintenance is completed, the plug block 24 can be inserted into the interior of the connecting block 4 again, and the bidirectional motor 30 can be driven to make the third gear 31 rotate in the opposite direction. The third gear 31 will drive the second gear 27 to rotate in the opposite direction, and then the second screw rod 26 will push the square plate 28 and the second limit block 29 into the interior of the plug block 24, so as to limit the limit shell 5.

[0025] like Figure 8 As shown, a second connecting plate 32 located inside the fixed shell 25 is fixedly installed at one end of the second screw rod 26 , square grooves 33 are opened on both sides inside the fixed shell 25 , and square blocks 34 located inside the square grooves 33 are fixedly installed at both ends of the surface of the second connecting plate 32 .

[0026] Through the design of the second connecting plate 32, the square groove 33 and the square block 34, when the second screw rod 26 moves, it will drive the second connecting plate 32 and the square block 34 to move, and then the square block 34 will move inside the square groove 33, and then the square groove 33 can limit the moving direction of the square block 34 and the second screw rod 26.

[0027] like Figure 7 and Figure 8 As shown, limiting grooves 35 are provided on both sides of the interior of the limiting shell 5, and a third limiting block 36 is slidably connected inside the limiting groove 35. The side of the third limiting block 36 close to the surface of the fixed shell 25 is fixedly connected to the surface of the square plate 28. A support plate 37 is fixedly installed on one side of the interior of the limiting shell 5, and a support block 38 is slidably sleeved on the surface of the support plate 37, and the bottom end of the support block 38 is fixedly connected to the surface of the square shell 20.

[0028] Through the design of the limiting groove 35 and the third limiting block 36, when the square plate 28 moves, the square plate 28 will drive the third limiting block 36 to move inside the limiting groove 35. Since the surface of the third limiting block 36 fits the inner wall of the limiting groove 35, the square plate 28 can be limited, thereby ensuring that the square plate 28 can move normally. Through the design of the support plate 37 and the support block 38, when the square shell 20 moves, the support block 38 will move on the surface of the support plate 37, and then the support block 38 can support and limit the square shell 20, and the surface of the support plate 37 is designed to be smooth, so that the square shell 20 can move more smoothly when entering.

[0029] like Figure 3 and Figure 4 As shown, the first limit blocks 8 are designed to be longitudinally symmetrical about the center of the limit shell 5, the surfaces of the two first limit blocks 8 facing each other are chamfered, both sides of the bottom end of the extrusion block 10 are chamfered, one side of the two first connecting plates 7 is chamfered, and the chamfers of the first connecting plates 7 are parallel to the chamfers of the extrusion blocks 10.

[0030] Through the design of the first limit block 8, since the first limit block 8 is symmetrically designed, the fixing effect of the limit shell 5 can be increased, and the surface of the first limit block 8 facing one side is chamfered, thereby reducing the resistance of the first limit block 8 entering the rotating ring 3. Through the design of the extrusion block 10 and the first connecting plate 7, since the chamfer of the extrusion block 10 is parallel to the chamfer of the first connecting plate 7, it is convenient for the extrusion block 10 to extrude and push the first connecting plate 7 to move.

[0031] like Figure 4 and Figure 5 As shown, the slider 13 is cylindrical in design, the surface of the slider 13 fully fits the inner wall of the slide groove 12, and the slider 13 is smooth in design. A gap is provided between the first gear 17 and the extrusion block 10, and the first gear 17 is located at the top of the first connecting plate 7.

[0032] Through the design of the slider 13, since the surface of the slider 13 fits with the inner wall of the slide groove 12 and the slider 13 is smoothly designed, the slider 13 can move more smoothly inside the slide groove 12. Through the design of the first gear 17, since there is a gap between the extrusion block 10 and the first gear 17, the first gear 17 will not interfere with the movement of the extrusion block 10, thereby ensuring that the extrusion block 10 can move normally.

[0033] The working principle and working process of this embodiment: First, the operator can insert the limiting shell 5 into the interior of the rotating ring 3, and then drive the cylinder 15 so that its output shaft pulls the hinge block 14 down, and the hinge block 14 will pull the push rod 11 and the slider 13 to rotate, and the slider 13 will move inside the slide groove 12, and then the push rod 11 will push the extrusion block 10 to go down, and then the extrusion block 10 will squeeze and push the first connecting plate 7 and the first limiting block 8 to move toward each other, and the first connecting plate 7 will squeeze the first spring 6, and then the first limiting block 8 will enter the interior of the rotating ring 3, thereby completing the installation, and when it needs to be disassembled, the cylinder 15 can be driven again so that its output shaft pushes the hinge block 14 to move up, and then the extrusion block 10 will move away from the surface of the first connecting plate 7, and the compressed first spring 6 will push the first limiting block 8 to shrink to the interior of the limiting shell 5, and then it can be disassembled; When the extrusion block 10 rises, the rack 16 will be linked to move up, and the moving rack 16 will drive the first gear 17 and the first screw rod 18 to rotate, and then the threaded block 19 will move on the surface of the first screw rod 18, and the threaded block 19 will drive the square shell 20, the moving block 22 and the contact block 23 to move. When the square shell 20 moves, the support block 38 will move on the surface of the support plate 37, so as to support and limit the square shell 20, and then the contact block 23 will move out of the interior of the limiting shell 5 and contact with the interior of the rotating ring 3, and then the contact block 23 will push the moving block 22 to squeeze the second spring 21, and when the first limiting block 8 cancels the limiting of the limiting shell 5, the compressed second spring 21 will push the limiting shell 5 to move out of the interior of the rotating ring 3, thereby improving the efficiency of the replacement of the robot arm; When it is necessary to maintain the components inside the limit shell 5, the bidirectional motor 30 can be driven to rotate the third gear 31, and the third gear 31 will drive the second gear 27 to rotate. When the second gear 27 rotates, the second screw rod 26 will move inside the second gear 27, and the square block 34 will move inside the square groove 33, thereby limiting the second screw rod 26, and then the second screw rod 26 will pull the square plate 28 and the second limit block 29, and then the second limit block 29 will move away from the inside of the plug block 24, thereby canceling the limit on the plug block 24, and then the operator can remove the limit shell 5 to maintain the components inside it, and finally complete the operation process.

Claims

1. A bionic robotic arm that can be quickly replaced, comprising a robotic arm body (1) and a mounting frame (2), characterized in that: The mounting frame (2) is rotatably connected to a rotating ring (3) inside, a connecting block (4) is fixedly mounted on one end of the mechanical arm body (1), and a limiting shell (5) located inside the rotating ring (3) is provided on one side of the connecting block (4); A fixing mechanism is arranged on both sides of the interior of the limiting shell (5), the fixing mechanism comprising a first spring (6), the first springs (6) are fixedly connected to both sides of the interior of the limiting shell (5), two first connecting plates (7) are fixedly installed on one side of the first spring (6) close to the center of the limiting shell (5), the first limiting blocks (8) located inside the rotating ring (3) are fixedly installed on the opposite sides of the two first connecting plates (7), the inner cavity of the limiting shell (5) is fixedly installed with a limiting plate (9), and the limiting The surface of the positioning plate (9) is slidably sleeved with an extrusion block (10), one side of the extrusion block (10) is provided with a slide groove (12), the interior of the limiting shell (5) is rotatably connected with a push rod (11), one side of the pushing rod (11) is fixedly mounted with a slider (13) located inside the slide groove (12), the interior of the pushing rod (11) is hinged with a hinge block (14), the inner cavity of the limiting shell (5) is fixedly mounted with a cylinder (15), and the output end of the cylinder (15) is fixedly connected to the bottom end of the hinge block (14).

2. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: The invention also comprises an ejection mechanism, which is arranged on the other side of the extrusion block (10), and the ejection mechanism comprises a rack (16), the rack (16) is fixedly connected to the other side of the extrusion block (10), one side of the interior of the limiting shell (5) is rotatably connected to a first gear (17) meshing with the rack (16), one side of the first gear (17) is fixedly mounted with a first screw rod (18), a threaded block (19) is threadedly sleeved on the surface of the first screw rod (18), a square shell (20) is fixedly mounted on the top of the threaded block (19), a second spring (21) is fixedly mounted inside the square shell (20), a moving block (22) located inside the square shell (20) is fixedly mounted on one side of the second spring (21), and a contact block (23) is fixedly mounted on one side of the moving block (22).

3. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: The invention also comprises a limiting mechanism, which is arranged inside the limiting shell (5), the limiting mechanism comprising a fixed shell (25), the fixed shell (25) being fixedly connected to the inside of the limiting shell (5), an insert block (24) located inside the limiting shell (5) being fixedly installed on one side of the limiting shell (5), a second screw rod (26) being slidably connected inside the fixed shell (25), a second gear (27) located on the surface of the second screw rod (26) being rotatably connected at both ends of the fixed shell (25), and the second gear (27) being threadedly connected to the second screw rod (26), a square plate (28) being rotatably sleeved on the surface of one end of the second screw rod (26), a second limiting block (29) located inside the insert block (24) being fixedly installed on one side of the square plate (28), a bidirectional motor (30) being fixedly installed inside the limiting shell (5), and a third gear (31) meshing with the second gear (27) being fixedly installed at the output end of the bidirectional motor (30).

4. The quickly replaceable bionic robotic arm according to claim 3, characterized in that: A second connecting plate (32) located inside the fixed shell (25) is fixedly mounted on one end of the second screw rod (26), square grooves (33) are provided on both sides of the fixed shell (25), and square blocks (34) located inside the square grooves (33) are fixedly mounted on both ends of the surface of the second connecting plate (32).

5. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: The limiting shell (5) is provided with limiting grooves (35) on both sides thereof, and a third limiting block (36) is slidably connected inside the limiting groove (35). The side of the third limiting block (36) close to the surface of the fixed shell (25) is fixedly connected to the surface of the square plate (28).

6. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: A support plate (37) is fixedly mounted on one side of the interior of the limiting shell (5), a support block (38) is slidably sleeved on the surface of the support plate (37), and the bottom end of the support block (38) is fixedly connected to the surface of the square shell (20).

7. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: The first limit blocks (8) are designed to be longitudinally symmetrical with respect to the center of the limit shell (5), and surfaces of the two first limit blocks (8) facing each other are both chamfered.

8. The quickly replaceable bionic mechanical arm according to claim 1, characterized in that: Both sides of the bottom end of the extrusion block (10) are chamfered, one side of the two first connecting plates (7) are chamfered, and the chamfers of the first connecting plates (7) are parallel to the chamfers of the extrusion block (10).

9. The quickly replaceable bionic robotic arm according to claim 1, characterized in that: The slider (13) is of cylindrical design, the surface of the slider (13) fully fits the inner wall of the slide groove (12), and the slider (13) is of smooth design.

10. The quickly replaceable bionic mechanical arm according to claim 2, characterized in that: A gap is provided between the first gear (17) and the extrusion block (10), and the first gear (17) is located at the top end of the first connecting plate (7).

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