CN215920452U - Mechanical arm limiting mechanism based on VEX robot platform - Google Patents

Abstract

The utility model relates to a mechanical arm limiting mechanism based on a VEX robot platform, which comprises a fixed frame and also comprises: a robot arm body including a left body and a right body; an extension robot arm including a left extension body and a right extension body; the upper surface of the connecting bridge plate is fixedly provided with a transmission rod; the rotating rod comprises a first rotating rod and a second rotating rod; connecting the side plates; the pressure sensor is arranged on the cross beam plate; compared with the prior art, the utility model improves the scoring efficiency and the running stability of the robot in the competition process.

Description

Mechanical arm limiting mechanism based on VEX robot platform

Technical Field

The utility model relates to a mechanical arm limiting mechanism based on a VEX robot platform.

Background

A VEX robot tournament (also called VEX robots Competition) is a world-level tournament which aims to expand the interests of middle school students and college students in the fields of science, technology, engineering and mathematics and improve and promote the team cooperation spirit, leadership and problem solving ability of teenagers by popularizing educational robots, the Competition is played globally under the corresponding rules of 4 months per year, the robots are required to grab target objects for scoring in the Competition process, the manipulators of the traditional robots are easy to generate the phenomenon of excessive displacement when grabbing the target objects, so that the manipulators are damaged due to impact and vibration, the robots cannot effectively grab the target objects for scoring, the scoring efficiency and the running stability of the robots are reduced, and therefore, necessary improvements are made.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving one of the technical problems of the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a mechanical arm stop gear based on VEX robot platform, includes the mount, its characterized in that still includes:

a robot arm body including a left body and a right body;

an extension robot arm including a left extension body and a right extension body;

the upper surface of the connecting bridge plate is fixedly provided with a transmission rod;

the rotating rod comprises a first rotating rod and a second rotating rod;

connecting the side plates;

the pressure sensor is arranged on the cross beam plate;

wherein, the left main part and the right main part of arm main part set up the left and right sides at the mount respectively, the left extension body and the right extension body that extend the arm are connected with the front end of left main part and right main part respectively, connect the bridge plate setting between left main part and right main part and connect the both ends of bridge plate respectively with the inside wall fixed connection of left main part and right main part, it sets up the upper surface at the arm main part to connect the curb plate is fixed, the upper end and the transfer line of first dwang rotate to be connected, the upper end of second dwang rotates with the lateral wall of being connected the curb plate to be connected, and the lower extreme rotates with the mount inside wall to be connected, the crossbeam board is fixed to be set up on the mount.

Further comprising:

the upper end of the third rotating rod is rotatably connected with the connecting side plate, and the lower end of the third rotating rod is rotatably connected with the inner wall of the fixing frame through a buffering shaft.

The buffer shaft further includes:

the buffer shaft comprises a buffer shaft shell, wherein two opposite sides in the buffer shaft shell are respectively provided with a limiting barrier strip;

the buffer shaft body is provided with a limit stop lever corresponding to the limit stop strip;

sealing the end cap;

positioning a stop lever;

a sheet;

wherein, buffering axle shell is hollow structure and one end sets up to open structure, buffering axle body sets up in buffering axle shell, the one end of buffering axle body is located the outside of buffering axle shell and is connected with the third dwang, buffering axle body is mortise hole shape structure in the outside one end of buffering axle shell, end cover sets up between the opening part of buffering axle shell and buffering axle body, it has viscous oil to fill between buffering axle shell and the buffering axle body, the location pin corresponds the one side that sets up at spacing pin and fixes a position pin and buffering axle shell clearance setting, the page piece sets up between location pin and buffering axle body, the one end correspondence of page piece sets up between spacing pin and location pin, spacing blend stop and location pin are located the both sides of spacing pin respectively.

Further comprising:

the reinforcing rod is arranged between the mechanical arm main body and the connecting bridge plate, one end of the reinforcing rod is fixedly connected with the mechanical arm main body, and the other end of the reinforcing rod is fixedly connected with the upper surface of the connecting bridge plate.

Preferably: the buffer shaft main body is arranged in a rotational symmetric structure.

By adopting the technical scheme, compared with the prior art, the mechanical arm limiting mechanism based on the VEX robot platform improves the scoring efficiency and the running stability of the robot in the competition process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of a buffer shaft structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 2, the embodiment of the present application provides a mechanical arm limiting mechanism based on a VEX robot platform, including a fixing frame 1, and characterized in that:

a robot arm main body 2 including a left main body and a right main body 21;

an extension robot arm 3 including left and right extensions 31;

the upper surface of the connecting bridge plate 4 is fixedly provided with a transmission rod 5;

the rotating rod comprises a first rotating rod 6 and a second rotating rod 7;

connecting the side plates 8;

the device comprises a cross beam plate 9, wherein a pressure sensor 10 is arranged on the cross beam plate 9;

wherein, the left main part and the right main part 21 of arm main part 2 set up the left and right sides at mount 1 respectively, the left extension body and the right extension body 31 that extend arm 3 are connected with the front end of left main part and right main part 21 respectively, connect the both ends that bridge plate 4 set up between left main part and right main part 21 and connect bridge plate 4 respectively with the inside wall fixed connection of left main part and right main part 21, connect the fixed upper surface that sets up at arm main part 2 of curb plate 8, the upper end and the transfer line 5 of first dwang 6 rotate to be connected, the upper end of second dwang 7 rotates with the lateral wall that is connected curb plate 8 to be connected, and the lower extreme rotates with 1 inside wall of mount to be connected, crossbeam board 9 is fixed to be set up on mount 1.

In the embodiment of the application, the mechanical arm limiting mechanism based on the VEX robot platform is adopted, in the process of a robot match, the lower end of a first rotating rod is connected with a power source carried on the robot, the power source is controlled to start through a controller, a movable parallelogram is formed between the mechanical arm, the rotating rod and a fixed frame, the power source drives the first rotating rod to rotate, the first rotating rod drives a connecting bridge plate to move forwards through the driving rod and simultaneously enables a second rotating rod to rotate, so that a mechanical arm main body and an extension mechanical arm extend forwards, when the mechanical arm main body and the extension mechanical arm completely extend out, the connecting bridge plate moves to the upper side of a cross beam plate along with the movement deformation of the parallelogram, the lower surface of the connecting bridge plate is connected with a pressure sensor and enables the pressure sensor to be pressed, the pressure sensor can send an electric signal to the power source after being pressed so as to control the power source to stop in time, the phenomenon of excessive displacement of the mechanical arm is prevented, so that the phenomenon that the mechanical arm is damaged due to impact and vibration is reduced, and the scoring efficiency and the running stability of the robot are improved.

Example 2:

in this embodiment, in addition to the structural features of the foregoing embodiment, the method further includes:

a third rotating rod 11, the upper end of the third rotating rod 11 is rotatably connected with the connecting side plate 8, and the lower end of the third rotating rod 11 is rotatably connected with the inner wall of the fixing frame 1 through a buffer shaft 12.

In the embodiment of the application, the mechanical arm limiting mechanism based on the VEX robot platform is adopted, so that the phenomenon that the mechanical arm is damaged due to impact and vibration can be further reduced by the buffer shaft in the robot competition process, and the scoring efficiency and the running stability of the robot are improved.

Example 3:

in this embodiment, in addition to the structural features of the previous embodiment, the buffer shaft 12 further includes:

the buffer shaft comprises a buffer shaft shell 121, wherein two opposite sides in the buffer shaft shell 121 are respectively provided with a limit barrier strip 122;

the buffer shaft comprises a buffer shaft body 123, wherein a limit stop lever 124 corresponding to the limit stop strip 122 is arranged on the buffer shaft body 123;

sealing the end cap;

a positioning bar 125;

a sheet 126;

wherein the buffer shaft housing 121 is hollow and has an open end, the buffer shaft body 123 is disposed in the buffer shaft housing 121, one end of the buffer shaft body 123 is located outside the buffer shaft housing 121 and is connected to the third rotating lever 11, one end of the buffer shaft body 123 outside the buffer shaft housing 121 is in a mortise structure, the sealing end cap is disposed between the opening of the buffer shaft housing 121 and the buffer shaft body 123, viscous oil 127 is filled between the buffer shaft housing 121 and the buffer shaft body 123, the positioning stop lever 125 is correspondingly arranged at one side of the limit stop lever 124 and the positioning stop lever 125 is arranged with a gap with the buffer shaft housing 121, the leaf 126 is arranged between the positioning stop rod 125 and the buffer shaft body 123, one end of the leaf 126 is correspondingly arranged between the limiting stop rod 124 and the positioning stop rod 125, the limit stop strip 122 and the positioning stop rod 125 are respectively located at two sides of the limit stop rod 124.

In the embodiment of the application, adopt foretell arm stop gear based on VEX robot platform, in the robot match process, when the arm stretches out, the third axis of rotation rotates along with the arm, the mobilizable parallelogram that constitutes between dwang and the mount changes, the buffering axle body rotates along with the rotation of third axis of rotation, the buffering axle passes through the high viscidity characteristics of viscous oil, reduce vibration and the impact that the arm produced at the in-process that stretches out, and the structural stability of buffering axle is good, long service life, the operating stability of robot has further been improved.

Example 4:

in this embodiment, in addition to the structural features of the foregoing embodiment, the method further includes:

and the reinforcing rod 13 is arranged between the mechanical arm main body 2 and the connecting bridge plate 4, one end of the reinforcing rod 13 is fixedly connected with the mechanical arm main body 2, and the other end of the reinforcing rod is fixedly connected with the upper surface of the connecting bridge plate 4.

In the embodiment of the application, adopt foretell arm stop gear based on VEX robot platform, at the robot match in-process, the stiffener can increase the joint strength between arm main part and the connection bridge plate for stretching out of arm is more stable, reduces the phenomenon that appears becoming flexible between arm main part and the connection bridge plate, has further improved the operating stability of robot.

Example 5:

in this embodiment, in addition to the structural features of the previous embodiments, the buffer shaft main body 123 is further disposed in a rotational symmetric structure.

In the embodiment of the application, adopt foretell arm stop gear based on VEX robot platform, the buffering axle main part that is rotational symmetry structure setting can guarantee the buffering effect of buffering axle, reduces the phenomenon that the arm appears damaging because of strikeing and vibration, has improved the score efficiency and the operating stability of robot.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

1. The utility model provides a mechanical arm stop gear based on VEX robot platform, includes the mount, its characterized in that still includes:

a robot arm body including a left body and a right body;

an extension robot arm including a left extension body and a right extension body;

the upper surface of the connecting bridge plate is fixedly provided with a transmission rod;

the rotating rod comprises a first rotating rod and a second rotating rod;

connecting the side plates;

the pressure sensor is arranged on the cross beam plate;

wherein, the left main part and the right main part of arm main part set up the left and right sides at the mount respectively, the left extension body and the right extension body that extend the arm are connected with the front end of left main part and right main part respectively, connect the bridge plate setting between left main part and right main part and connect the both ends of bridge plate respectively with the inside wall fixed connection of left main part and right main part, it sets up the upper surface at the arm main part to connect the curb plate is fixed, the upper end and the transfer line of first dwang rotate to be connected, the upper end of second dwang rotates with the lateral wall of being connected the curb plate to be connected, and the lower extreme rotates with the mount inside wall to be connected, the crossbeam board is fixed to be set up on the mount.

2. The mechanical arm limiting mechanism based on the VEX robot platform is characterized by further comprising:

the upper end of the third rotating rod is rotatably connected with the connecting side plate, and the lower end of the third rotating rod is rotatably connected with the inner wall of the fixing frame through a buffering shaft.

3. The VEX robot platform-based mechanical arm limiting mechanism of claim 2, wherein the buffer shaft further comprises:

the buffer shaft comprises a buffer shaft shell, wherein two opposite sides in the buffer shaft shell are respectively provided with a limiting barrier strip;

the buffer shaft body is provided with a limit stop lever corresponding to the limit stop strip;

sealing the end cap;

positioning a stop lever;

a sheet;

wherein, buffering axle shell is hollow structure and one end sets up to open structure, buffering axle body sets up in buffering axle shell, the one end of buffering axle body is located the outside of buffering axle shell and is connected with the third dwang, buffering axle body is mortise hole shape structure in the outside one end of buffering axle shell, end cover sets up between the opening part of buffering axle shell and buffering axle body, it has viscous oil to fill between buffering axle shell and the buffering axle body, the location pin corresponds the one side that sets up at spacing pin and fixes a position pin and buffering axle shell clearance setting, the page piece sets up between location pin and buffering axle body, the one end correspondence of page piece sets up between spacing pin and location pin, spacing blend stop and location pin are located the both sides of spacing pin respectively.

4. The mechanical arm limiting mechanism based on the VEX robot platform is characterized by further comprising:

the reinforcing rod is arranged between the mechanical arm main body and the connecting bridge plate, one end of the reinforcing rod is fixedly connected with the mechanical arm main body, and the other end of the reinforcing rod is fixedly connected with the upper surface of the connecting bridge plate.

5. The mechanical arm limiting mechanism based on the VEX robot platform is characterized in that: the buffer shaft main body is arranged in a rotational symmetric structure.

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