Teaching aid for displaying mechanical principle of mechanical arm

Abstract

The utility model discloses a teaching aid for displaying the mechanical principle of a mechanical arm, which comprises a bottom plate, a circular pedestal arranged on the bottom plate, a rack a arranged on the outer surface of the bottom of the circular pedestal, a rotating handle arranged on one side of the circular pedestal, and a rack b arranged on the outer surface of the rim of the bottom of the rotating handle. An arc-shaped supporting arm is rotationally installed on the circular pedestal through a supporting arm rotating shaft, and a clamping jaw mechanism is rotationally connected to the top end of the sleeve through a pin shaft. According to the scheme, the process that an internal clamping jaw connecting rod drives clamping jaws to move is conveniently observed, when a small telescopic motor works, a connecting plate is driven by the end of a telescopic shaft to be pulled out of the inner wall of a circular shell, and under the action of a first clamping jaw rotating pin, the bilaterally symmetrical clamping jaws are pulled to incline inwards, so that the clamping effect is achieved; the whole mechanical arm structure can comprehensively display the change of different heights and gradients of the whole mechanical arm support and the tensioning process of the clamping jaw, and the teaching display effect of the mechanical arm principle is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a teaching aid for demonstrating the mechanical principle of a mechanical arm. Background Art

[0002] In mechanical manufacturing, robotic arms can replace manual work and save a lot of human resources. When learning the principles of robotic arms, it is usually learned from videos. However, there is a disadvantage that the robotic arm is not convenient for all-round display of the movement process. The angle display during the movement of the robotic arm is limited, and the tensioning process of the mechanical gripper is difficult to see intuitively on the frame, which is not conducive to learning the principles of the mechanical movement process of the robotic arm. Utility Model Content

[0003] The purpose of the utility model is to provide a teaching aid for demonstrating the mechanical principle of a robot arm, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a teaching aid for demonstrating the mechanical principle of a mechanical arm, comprising a bottom plate, a circular pedestal mounted on the bottom plate, a rack a arranged on the bottom outer surface of the circular pedestal, a rotating handle mounted on one side of the circular pedestal, a rack b arranged on the outer surface of the bottom wheel rim of the rotating handle, an arc-shaped support arm rotatably mounted on the circular pedestal through a support arm rotating shaft, a telescopic rod rotatably connected to the top of the arc-shaped support arm through a pin shaft, a sleeve fixedly mounted on the top end of the telescopic rod, a clamping claw mechanism rotatably connected to the top end of the sleeve through a pin shaft;

[0005] The clamping mechanism includes a circular shell, a small telescopic motor, a connecting plate, a first clamping jaw connecting rod, a second clamping jaw connecting rod, a first clamping jaw rotating pin, a second clamping jaw rotating pin and a clamping jaw, wherein the small telescopic motor is assembled inside the circular shell, and a connecting plate is connected to the end of the small telescopic motor through a motor telescopic shaft, and the left and right sides of the connecting plate are connected to the first clamping jaw connecting rod, and a second clamping jaw connecting rod is arranged on the outer side of the first clamping jaw connecting rod, and the end of the first clamping jaw connecting rod is rotatably connected to the clamping jaw through the first clamping jaw rotating pin, and one end of the second clamping jaw connecting rod is fixed to the inner wall of the circular shell, and the other end of the second clamping jaw connecting rod is rotatably connected to the clamping jaw through the second clamping jaw rotating pin.

[0006] Preferably, a back bracket is installed at the surface edge of the circular pedestal, and a first electric telescopic rod and a second electric telescopic rod are installed on the back bracket, the end of the first electric telescopic rod is connected to the arc-shaped support arm, and the end of the second electric telescopic rod is rotatably connected to a sleeve connecting rod through a pin shaft, and the end of the sleeve connecting rod is fixed to the sleeve.

[0007] Preferably, the rack a and the rack b are meshed and transmitted, and the circular pedestal is driven to rotate on the bottom plate to adjust the direction by turning the handle.

[0008] Preferably, the circular shell in the clamping mechanism is made of transparent plastic material. Beneficial Effects

[0009] The utility model provides a teaching aid for demonstrating the mechanical principle of a robotic arm, which has the following beneficial effects:

[0010] In this scheme, the circular shell in the clamping mechanism is made of transparent plastic material, which makes it easy to observe the process of the internal clamping connecting rod driving the clamping movement. When the small telescopic motor is working, the connecting plate is driven to be pulled toward the inner wall of the circular shell through the end of the telescopic shaft. Under the action of the first clamping jaw rotating pin, the left and right symmetrical clamping jaws are pulled inward to tilt, thereby achieving the clamping effect; similarly, the connecting plate can be controlled to extend toward the direction of the clamping jaws, so that the two clamping jaws are opened outward. The entire robotic arm structure can fully display the changes in the overall height and inclination of the robotic arm bracket and the tensioning process of the clamping jaws, which is convenient for the teaching and demonstration of the robotic arm principle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the clamping mechanism of the utility model;

[0013] In the figure: 1. bottom plate; 2. round pedestal; 3. rack a; 4. rotating handle; 5. rack b; 6. support arm shaft; 7. arc-shaped support arm; 8. telescopic rod; 9. sleeve; 10. small telescopic motor; 11. connecting plate; 12. first clamping jaw connecting rod; 13. second clamping jaw connecting rod; 14. first clamping jaw rotating pin; 15. second clamping jaw rotating pin; 16. clamping jaw; 17. back support; 18. first electric telescopic rod; 19. second electric telescopic rod; 20. sleeve connecting rod. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-2The utility model provides a technical solution: a teaching aid for demonstrating the mechanical principle of a mechanical arm, comprising a bottom plate 1, a circular pedestal 2 is mounted on the bottom plate 1, a rack a3 is arranged on the bottom outer surface of the circular pedestal 2, a rotating handle 4 is mounted on one side of the circular pedestal 2, a rack b5 is arranged on the outer surface of the bottom wheel rim of the rotating handle 4, an arc-shaped support arm 7 is rotatably mounted on the circular pedestal 2 through a support arm rotating shaft 6, a telescopic rod 8 is rotatably connected to the top of the arc-shaped support arm 7 through a pin shaft, a sleeve 9 is fixedly mounted on the top end of the telescopic rod 8, and a clamping claw mechanism is rotatably connected to the top end of the sleeve 9 through a pin shaft;

[0016] The clamping mechanism includes a circular shell, a small telescopic motor 10, a connecting plate 11, a first clamping jaw connecting rod 12, a second clamping jaw connecting rod 13, a first clamping jaw rotating pin 14, a second clamping jaw rotating pin 15 and a clamping jaw 16, wherein the small telescopic motor 10 is assembled inside the circular shell, and the connecting plate 11 is connected to the end of the small telescopic motor 10 through the motor telescopic shaft, and the left and right sides of the connecting plate 11 are connected to the first clamping jaw connecting rod 12, and the second clamping jaw connecting rod 13 is arranged on the outside of the first clamping jaw connecting rod 12, and the end of the first clamping jaw connecting rod 12 and the clamping jaw 16 are rotatably connected through the first clamping jaw rotating pin 14, one end of the second clamping jaw connecting rod 13 is fixed to the inner wall of the circular shell, and the other end of the second clamping jaw connecting rod 13 and the clamping jaw 16 are rotatably connected through the second clamping jaw rotating pin 15.

[0017] A back bracket 17 is installed at the surface edge of the circular pedestal 2, and a first electric telescopic rod 18 and a second electric telescopic rod 19 are installed on the back bracket 17. The end of the first electric telescopic rod 18 is connected to the arc-shaped support arm 7, and the end of the second electric telescopic rod 19 is rotatably connected to a sleeve connecting rod 20 through a pin shaft, and the end of the sleeve connecting rod 20 is fixed to the sleeve 9.

[0018] The rack a3 and the rack b5 are meshed and transmitted, and the circular pedestal 2 is driven to rotate on the bottom plate 1 by turning the handle 4 to adjust the direction.

[0019] The circular shell in the clamping jaw mechanism is made of transparent plastic material, which is convenient for observing the tensioning process of the clamping jaw 16.

[0020] Working principle:

[0021] In this solution, the handle 4 can be manually rotated to mesh the rack b5 on the outer surface of the bottom wheel rim with the rack a3, thereby driving the circular pedestal 2 to rotate on the bottom plate 1, so that the entire mechanical arm structure can rotate in real time, which is convenient for displaying the movement process of the gripper on the mechanical arm;

[0022] The first electric telescopic rod 18 of the back support 17 can adjust the rotation angle of the arc-shaped support arm 7 on the circular pedestal 2, and the second electric telescopic rod 19 can pull the sleeve connecting rod 20 to move downward, thereby pulling the entire clamping claw mechanism downward, so that the clamping claw 16 moves vertically downward;

[0023] A sleeve 9 is connected to the top of the arc-shaped support arm 7 through a telescopic rod 8, and the height spacing between the clamping claw mechanism and the arc-shaped support arm 7 can be manually adjusted;

[0024] The circular shell in its clamping mechanism is made of transparent plastic, which makes it easy to observe the process of the internal clamping connecting rod driving the clamping jaw 16 to move. When the small telescopic motor 11 is working, the connecting plate 11 is driven to be pulled out to the inner wall of the circular shell through the end of the telescopic shaft. Under the action of the first clamping jaw rotating pin 14, the left and right symmetrical clamping jaws 16 are pulled inward to tilt, thereby achieving a clamping effect; similarly, the connecting plate 11 can be controlled to extend toward the direction of the clamping jaws 16, so that the two clamping jaws 16 are opened outward. The entire robotic arm structure can fully display the changes in the overall height and inclination of the robotic arm bracket and the tensioning process of the clamping jaws, which is convenient for the teaching and demonstration of the principles of the robotic arm.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A teaching aid for demonstrating the mechanical principle of a robotic arm, comprising a base plate (1), characterized in that: A circular pedestal (2) is mounted on the bottom plate (1), a rack a (3) is arranged on the bottom outer surface of the circular pedestal (2), a rotating handle (4) is mounted on one side of the circular pedestal (2), a rack b (5) is arranged on the bottom rim outer surface of the rotating handle (4), an arc-shaped support arm (7) is rotatably mounted on the circular pedestal (2) via a support arm rotating shaft (6), a telescopic rod (8) is rotatably connected to the top of the arc-shaped support arm (7) via a pin, a sleeve (9) is fixedly mounted on the top end of the telescopic rod (8), and a clamping claw mechanism is rotatably connected to the top end of the sleeve (9) via a pin; The clamping mechanism comprises a circular housing, a small telescopic motor (10), a connecting plate (11), a first clamping jaw connecting rod (12), a second clamping jaw connecting rod (13), a first clamping jaw rotating pin (14), a second clamping jaw rotating pin (15) and a clamping jaw (16), wherein the small telescopic motor (10) is assembled inside the circular housing, and the connecting plate (11) is connected to the end of the small telescopic motor (10) via a motor telescopic shaft, and the left and right sides of the connecting plate (11) are both connected to the first clamping jaw connecting rod (12), and the second clamping jaw connecting rod (13) is arranged on the outside of the first clamping jaw connecting rod (12), and the end of the first clamping jaw connecting rod (12) and the clamping jaw (16) are rotatably connected via the first clamping jaw rotating pin (14), one end of the second clamping jaw connecting rod (13) is fixed to the inner wall of the circular housing, and the other end of the second clamping jaw connecting rod (13) and the clamping jaw (16) are rotatably connected via the second clamping jaw rotating pin (15).

2. A teaching aid for demonstrating the mechanical principle of a robotic arm according to claim 1, characterized in that: A back support (17) is installed at the surface edge of the circular pedestal (2), and a first electric telescopic rod (18) and a second electric telescopic rod (19) are installed on the back support (17), wherein the end of the first electric telescopic rod (18) is connected to the arc-shaped support arm (7), and the end of the second electric telescopic rod (19) is rotatably connected to a sleeve connecting rod (20) via a pin shaft, and the end of the sleeve connecting rod (20) is fixed to the sleeve (9).

3. A teaching aid for demonstrating the mechanical principle of a robotic arm according to claim 1, characterized in that: The rack a (3) and the rack b (5) are meshed and transmitted, and the handle (4) is turned to drive the circular pedestal (2) to rotate on the bottom plate (1) to adjust the direction.

4. A teaching aid for demonstrating the mechanical principle of a robotic arm according to claim 1, characterized in that: The circular shell in the clamping jaw mechanism is made of transparent plastic material.

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