CN220614056U

CN220614056U - Multistage extending structure of mechanical arm

Info

Publication number: CN220614056U
Application number: CN202322302502.7U
Authority: CN
Inventors: 徐恺; 石新羽; 万达; 朱焱; 毕康; 周海宁
Original assignee: Kunshan Damu Robot Technology Co ltd
Current assignee: Kunshan Damu Robot Technology Co ltd
Priority date: 2023-08-27
Filing date: 2023-08-27
Publication date: 2024-03-19
Anticipated expiration: 2033-08-27

Abstract

The utility model relates to the technical field of mechanical arms and discloses a multistage telescopic structure of a mechanical arm, which comprises a first mechanical arm, wherein a mounting groove is formed in the first mechanical arm, a rack is fixedly connected to the inner wall of the mounting groove, a second mechanical arm is connected to the inner part of the first mechanical arm in a sliding manner, a first mounting hole is formed in the second mechanical arm, a first rotating rod is connected to the inner wall of the first mounting hole in a rotating manner, a motor is fixedly connected to the outer wall of the second mechanical arm, and the output end of the motor is fixedly connected to one end of the first rotating rod. According to the utility model, the first rotating rod and the first gear are driven to rotate by the starting motor, so that the second gear, the second rotating rod and the third gear are driven to rotate, and the third gear is further driven to rotate on the rack, so that the second mechanical arm slides in the first mechanical arm, and the effect of pushing the second mechanical arm out of the first mechanical arm is achieved through the action.

Description

Multistage extending structure of mechanical arm

Technical Field

The utility model relates to the technical field of mechanical arms, in particular to a multistage telescopic structure of a mechanical arm.

Background

Industrial robots are robots of specific use, widely used in industrial production environments, for accomplishing various repetitive, tedious and dangerous work tasks. The industrial robot has the characteristics of high automation, high precision, strong flexibility and the like, and can improve the production efficiency, quality and safety, wherein the mechanical arm is one of important parts of the industrial robot and is generally composed of a plurality of joints and connections, has a structure and movement capability similar to those of a human arm, can execute various tasks in a three-dimensional space, and can use a multi-stage telescopic structure for the purpose of operating efficiency and range through the mechanical arm.

The multistage extending structure of traditional arm can appear in the use, and extending structure needs to use a plurality of actuating devices to realize multistage flexible effect, leads to the higher practicality that reduces of cost of arm.

Disclosure of Invention

In order to make up for the defects, the utility model provides a multi-stage telescopic structure of a mechanical arm, which aims to improve the multi-stage telescopic structure, and the telescopic structure needs to use a plurality of driving devices to realize the multi-stage telescopic effect, so that the cost of the mechanical arm is higher and the practicability of the mechanical arm is reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a multistage extending structure of arm, including first arm, the mounting groove has been seted up to the inside of first arm, the inner wall fixedly connected with rack of mounting groove, the inside sliding connection of first arm has the second arm, first mounting hole has been seted up to the inside of second arm, the inner wall rotation of first mounting hole is connected with first dwang, the outer wall fixedly connected with motor of second arm, the output fixed connection of motor is in the one end of first dwang, the outer wall fixedly connected with first gear of first dwang, the outer wall meshing of first gear is connected with the second gear, the second mounting hole has been seted up to the inside of second arm, the inner wall rotation of second mounting hole is connected with the second dwang, the top fixedly connected with of second dwang is at the lower surface of second gear, the bottom fixedly connected with third gear of second dwang, the outer wall meshing of third gear is connected with the outer wall at the rack.

As a further description of the above technical solution:

the inner wall sliding connection of second arm has the third arm, and the screw hole has been seted up to the inside of third arm.

As a further description of the above technical solution:

the inner wall threaded connection of screw hole has the threaded rod, and the one end fixed connection of threaded rod is in the one end of first dwang.

As a further description of the above technical solution:

the second limiting groove is formed in the third mechanical arm, and a second limiting block is connected to the inner wall of the second limiting groove in a sliding mode.

As a further description of the above technical solution:

and a guide hole is formed in the third mechanical arm, and a guide rod is connected to the inner wall of the guide hole in a sliding manner.

As a further description of the above technical solution:

one end of the guide rod is fixedly connected to the inner wall of the second mechanical arm, and the outer wall of the guide rod is fixedly connected to the outer wall of the second limiting block.

As a further description of the above technical solution:

the inside of first arm has seted up first spacing groove, and the inner wall sliding connection of first spacing groove has first stopper, and the outer wall fixed connection of first stopper is at the outer wall of second arm.

The utility model has the following beneficial effects:

1. according to the utility model, the first rotating rod and the first gear are driven to rotate by the starting motor, so that the second gear, the second rotating rod and the third gear are driven to rotate, and the third gear is further driven to rotate on the rack, so that the second mechanical arm slides in the first mechanical arm, and the effect of pushing the second mechanical arm out of the first mechanical arm is achieved through the action.

2. According to the utility model, the threaded rod is driven to rotate by the rotation of the first rotating rod, so that the third mechanical arm is pushed to move, the third mechanical arm slides on the guide rod, the second limiting block slides in the second limiting groove, the third mechanical arm slides in the second mechanical arm, and the effect of pushing the third mechanical arm out of the second mechanical arm is achieved through the action.

Drawings

Fig. 1 is a schematic front perspective view of a multi-stage telescopic structure of a mechanical arm according to the present utility model;

fig. 2 is a cross-sectional view of a first mechanical arm of a multi-stage telescopic structure of a mechanical arm according to the present utility model;

fig. 3 is a schematic view of a first rotating rod of a multi-stage telescopic structure of a mechanical arm according to the present utility model;

fig. 4 is a cross-sectional view of a second mechanical arm with a multi-stage telescopic structure according to the present utility model;

fig. 5 is a cross-sectional view of a third mechanical arm with a multi-stage telescopic structure according to the present utility model.

Legend description:

1. a first mechanical arm; 2. a second mechanical arm; 3. a third mechanical arm; 4. a first limit groove; 5. a mounting groove; 6. a rack; 7. a motor; 8. a first gear; 9. a first rotating lever; 10. a second gear; 11. a second rotating lever; 12. a third gear; 13. a threaded rod; 14. a first mounting hole; 15. a second mounting hole; 16. a first limiting block; 17. a guide rod; 18. a second limiting block; 19. a guide hole; 20. a threaded hole; 21. and the second limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a multistage extending structure of arm, including first arm 1, mounting groove 5 has been seted up to the inside of first arm 1, the inner wall fixedly connected with rack 6 of mounting groove 5, first mounting hole 14 has been seted up to the inside sliding connection of first arm 1 second arm 2, first dwang 9 is connected with in the inner wall rotation of first mounting hole 14, the outer wall fixedly connected with motor 7 of second arm 2, the output fixed connection of motor 7 is in the one end of first dwang 9, the outer wall fixedly connected with first gear 8 of first dwang 9, the outer wall meshing of first gear 8 is connected with second gear 10, second mounting hole 15 has been seted up to the inside of second arm 2, the inner wall rotation of second mounting hole 15 is connected with second dwang 11, the top fixedly connected with at the lower surface of second gear 10 of second dwang 11, the bottom fixedly connected with third gear 12 of second dwang 11, the outer wall meshing of third gear 12 is connected with the outer wall of rack 6.

Specifically, the output end of the motor 7 drives the first rotating rod 9 to rotate, and then drives the first gear 8 to rotate, so as to drive the second gear 10 to rotate, and then drive the second rotating rod 11 to rotate through the rotation of the second gear 10, so that the second rotating rod rotates in the second mounting hole 15, and then drive the third gear 12 to rotate, and the third gear 12 rotates on the rack 6, and then drives the second mechanical arm 2 to move, so that the effect of pushing the second mechanical arm 2 out of the first mechanical arm 1 is achieved.

The inner wall sliding connection of second arm 2 has third arm 3, and screw hole 20 has been seted up to the inside of third arm 3.

Specifically, the second robot arm 2 can support the third robot arm 3.

The inner wall of the threaded hole 20 is in threaded connection with a threaded rod 13, and one end of the threaded rod 13 is fixedly connected with one end of the first rotating rod 9.

Specifically, the rotation of the first rotating rod 9 drives the threaded rod 13 to rotate, so that the threaded rod 13 rotates in the threaded hole 20, and the effect of pushing the third mechanical arm 3 to move is achieved.

The second limiting groove 21 is formed in the third mechanical arm 3, and the second limiting block 18 is connected to the inner wall of the second limiting groove 21 in a sliding mode.

Specifically, the second limiting block 18 slides in the second limiting groove 21 through the movement of the third mechanical arm 3, and then the effect of limiting the third mechanical arm 3 can be achieved through the second limiting block 18.

The inside of the third mechanical arm 3 is provided with a guide hole 19, and the inner wall of the guide hole 19 is connected with a guide rod 17 in a sliding way.

Specifically, the guide rod 17 slides in the guide hole 19 by the movement of the third arm 3, and the guide rod 17 has an effect of guiding the movement of the third arm 3.

One end of the guide rod 17 is fixedly connected to the inner wall of the second mechanical arm 2, and the outer wall of the guide rod 17 is fixedly connected to the outer wall of the second limiting block 18.

Specifically, the second mechanical arm 2 can have an effect of fixing the guide rod 17, and the guide rod 17 can have an effect of fixing the second limiting block 18.

The inside of first arm 1 has seted up first spacing groove 4, and the inner wall sliding connection of first spacing groove 4 has first stopper 16, and the outer wall fixed connection of first stopper 16 is at the outer wall of second arm 2.

Specifically, the first limiting block 16 is driven to slide in the first limiting groove 4 through movement of the second mechanical arm 2, so that the limiting effect is achieved.

Working principle: when the multistage telescopic structure of this arm is used, at first, drive first dwang 9 through the output of motor 7 and rotate, make it rotate in first mounting hole 14, and then drive first gear 8 and rotate, drive second gear 10 through the rotation of first gear 8 and rotate, and then drive second dwang 11 and rotate, make it rotate in second mounting hole 15, thereby drive third gear 12 and rotate, make it remove on rack 6 through the rotation of third gear 12, and then drive second arm 2 and remove, thereby make second arm 2 slide in first arm 1, and then reach the effect of pushing out second arm 2, drive first stopper 16 in first spacing groove 4 through the removal of second arm 2, and then play spacing effect, drive threaded rod 13 through first dwang 9 rotation, and then make threaded rod 13 rotate in threaded hole 20, and then promote third arm 3 and remove at second arm 2, make it slide on guide bar 17 through the rotation of third arm 12, and then drive second arm 2, and then make the second arm 3 reach the effect of pushing out second arm 21 in the spacing groove 18 through the second arm 2.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a multistage extending structure of arm, includes first arm (1), its characterized in that: the inside of first arm (1) has been seted up mounting groove (5), the inner wall fixedly connected with rack (6) of mounting groove (5), the inside sliding connection of first arm (1) has second arm (2), first mounting hole (14) have been seted up to the inside of second arm (2), the inner wall rotation of first mounting hole (14) is connected with first dwang (9), the outer wall fixedly connected with motor (7) of second arm (2), the output fixedly connected with of motor (7) is in the one end of first dwang (9), the outer wall fixedly connected with first gear (8) of first dwang (9), the outer wall meshing of first gear (8) is connected with second gear (10), the inside of second arm (2) is offered and is looked second mounting hole (15), the inner wall rotation of second mounting hole (15) is connected with second dwang (11), the top fixedly connected with of second dwang (11) is at the lower surface of second gear (10), the bottom fixedly connected with motor (7) of second dwang (11), the outer wall meshing of third gear (12) is at the outer wall meshing of third gear (6).

2. The multi-stage telescopic structure of a mechanical arm according to claim 1, wherein: the inner wall sliding connection of second arm (2) has third arm (3), and screw hole (20) have been seted up to the inside of third arm (3).

3. The multi-stage telescopic structure of a mechanical arm according to claim 2, wherein: the inner wall thread of the threaded hole (20) is connected with a threaded rod (13), and one end of the threaded rod (13) is fixedly connected with one end of the first rotating rod (9).

4. The multi-stage telescopic structure of a mechanical arm according to claim 2, wherein: a second limiting groove (21) is formed in the third mechanical arm (3), and a second limiting block (18) is connected to the inner wall of the second limiting groove (21) in a sliding mode.

5. The multi-stage telescopic structure of a mechanical arm according to claim 2, wherein: the inside of the third mechanical arm (3) is provided with a guide hole (19), and the inner wall of the guide hole (19) is connected with a guide rod (17) in a sliding way.

6. The multi-stage telescopic structure of claim 5, wherein: one end of the guide rod (17) is fixedly connected to the inner wall of the second mechanical arm (2), and the outer wall of the guide rod (17) is fixedly connected to the outer wall of the second limiting block (18).

7. The multi-stage telescopic structure of a mechanical arm according to claim 1, wherein: a first limiting groove (4) is formed in the first mechanical arm (1), a first limiting block (16) is slidably connected to the inner wall of the first limiting groove (4), and the outer wall of the first limiting block (16) is fixedly connected to the outer wall of the second mechanical arm (2).