CN210210418U

CN210210418U - Desktop robot

Info

Publication number: CN210210418U
Application number: CN201921278551.9U
Authority: CN
Inventors: Ding Peng; 彭鼎; Yiliu Liu; 刘一流
Original assignee: Foshan Finger Engine Technology Co ltd
Current assignee: Foshan Finger Engine Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-03-31
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to the field of teaching equipment, in particular to a desktop robot, which comprises an mechanical arm, a rotating seat, a motor and a base, wherein the mechanical arm is arranged on the rotating seat, the motor is arranged on the rotating seat, an output shaft of the motor passes through the rotating seat and extends downwards, the base is provided with a circular expansion sleeve fixing seat, and an expansion sleeve is arranged between the inner peripheral surface of the expansion sleeve fixing seat and the outer peripheral surface of the output shaft; the base is also provided with a circular bearing limit seat, and a plane bearing is arranged between the inner peripheral surface of the bearing limit seat and the outer peripheral surface of the expansion sleeve fixing seat; the lower surface of the plane bearing is contacted with the upper surface of the base, and the upper surface of the plane bearing is contacted with the lower surface of the rotating seat. This kind of desktop robot motor is connected through the tight cover that expands between output shaft and the base, adopts the tight connected mode of cover that expands to be difficult to take place not hard up, and under plane bearing's support, the output shaft of motor is difficult to take place to buckle.

Description

Desktop robot

Technical Field

The utility model relates to a teaching equipment field especially relates to a desktop robot.

Background

With the vigorous development and wide application of the robot technology, teaching experiments of the college and secondary school proofreading robot are developed successively, and in order to meet the requirements of robot teaching, the college and secondary school can adopt the desktop robot to carry out teaching, namely, a teaching person controls the desktop robot to move through a demonstrator, so that the desktop robot can complete specific actions.

In the prior art, desktop robot generally includes the arm, rotates seat, motor and base, and motor fixed mounting rotates the seat, and the output shaft of motor passes and rotates the seat after and be connected with the base, and the motor rotates and realizes promptly rotating the seat and rotate for the base, and the arm is installed at rotating the seat simultaneously, and consequently, the motor rotates and realizes promptly that the arm rotates for the base.

In the prior art, the output shaft of the motor is generally directly connected to the base by screws, and as shown in fig. 1, an output shaft attachment 41 is fixedly provided on the base 4, the output shaft attachment 41 is provided with a screw hole in a lateral direction, and after the output shaft 31 is inserted into the output shaft attachment 41 from above, the screw is screwed in from the lateral direction of the output shaft attachment 41 to fix the output shaft 31 to the output shaft attachment 41. However, after the structure is used for a long time, especially under the condition of continuously receiving reciprocating acting force, the screw can be loosened, so that the connection between the output shaft and the output shaft mounting piece is loosened, the normal operation of the desktop robot is influenced, and the output shaft of the motor is easy to bend.

For this reason, improvements are required to address the problems existing in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a desktop robot, it can avoid being connected between the output shaft of motor and the base to take place not hard up, also can avoid the output shaft of motor to take place to buckle.

In order to achieve the purpose, the utility model provides a desktop robot, which comprises a mechanical arm, a rotating seat, a motor and a base, wherein the mechanical arm is arranged on the rotating seat, the motor is arranged on the rotating seat, an output shaft of the motor passes through the rotating seat and extends downwards, the base is provided with a circular expansion sleeve fixing seat, and an expansion sleeve is arranged between the inner peripheral surface of the expansion sleeve fixing seat and the outer peripheral surface of the output shaft; the base is also provided with a circular bearing limiting seat, and a plane bearing is arranged between the inner circumferential surface of the bearing limiting seat and the outer circumferential surface of the expansion sleeve fixing seat; the lower surface of the plane bearing is in contact with the upper surface of the base, and the upper surface of the plane bearing is in contact with the lower surface of the rotating seat.

Further, the base is provided with a through hole penetrating through the thickness direction of the base, and the position of the through hole is opposite to the expansion sleeve.

Further, the aperture of the through hole is larger than the outer diameter of the expansion sleeve.

Further, a limiting device used for limiting the rotation angle of the rotating seat relative to the base is arranged between the rotating seat and the base.

Furthermore, the limiting device comprises a limiting switch arranged on the lower surface of the rotating seat and a limiting column arranged on the upper surface of the base.

Furthermore, the limiting column is a limiting screw screwed on the base.

Further, the tight cover fixing base that expands passes through the screw installation the base, the screw follow the below of base is from down up passing behind the base with the tight cover fixing base spiro union that expands.

Further, the bearing limit seat is installed on the base through a screw, and the screw penetrates through the base from bottom to top below the base and then is in threaded connection with the bearing limit seat.

The utility model provides a desktop robot is connected through the tight cover that expands between the output shaft of motor and the base, adopts the tight connected mode that expands to be difficult to take place not hard up, simultaneously, through setting up flat bearing, makes to rotate the seat and is supported well on the base, under flat bearing's support, the output shaft of motor is difficult to take place to buckle.

Drawings

FIG. 1 is a schematic diagram of a connection relationship between an output shaft of a motor and a base in the prior art;

fig. 2 is a schematic perspective view of the desktop robot of the present invention;

fig. 3 is an exploded schematic view of the desktop robot of the present invention;

fig. 4 is a schematic structural diagram of a connection relationship between an output shaft and a base of the tabletop robot of the present invention;

fig. 5 is a schematic structural view of the base.

[ description of reference ]

1-a mechanical arm;

2-rotating the base;

3-motor, 31-output shaft;

4-base, 41-output shaft mounting piece and 42-through hole;

5-expanding and tightening the sleeve;

6-expansion sleeve fixing seat;

7-a planar bearing;

8-bearing limit seat;

91-limit switch, 92-limit post.

Detailed Description

The invention is described in detail below with reference to specific embodiments.

The utility model provides a desktop robot, as shown in fig. 2 to 5, the desktop robot comprises a mechanical arm 1, a rotating seat 2, a motor 3 and a base 4, wherein the mechanical arm 1 is arranged on the rotating seat 2, the motor 3 is arranged on the rotating seat 2, an output shaft 31 of the motor 3 passes through the rotating seat 2 and extends downwards, the base 4 is provided with a circular expansion sleeve fixing seat 6, and an expansion sleeve 5 is arranged between the inner peripheral surface of the expansion sleeve fixing seat 6 and the outer peripheral surface of the output shaft 31; the base 4 is also provided with a circular bearing limit seat 8, and a plane bearing 7 is arranged between the inner peripheral surface of the bearing limit seat 8 and the outer peripheral surface of the expansion sleeve fixing seat 6; the lower surface of the flat bearing 7 is in contact with the upper surface of the base 4, and the upper surface of the flat bearing 7 is in contact with the lower surface of the rotary holder 2.

The tight cover 5 that expands is provided with the tight screw that expands with the axial direction parallel of the tight cover 5 that expands, through screwing up the tight screw that expands, the outer wall of the tight cover 5 that expands outwards expands, the outer wall of the tight cover 5 that expands and the tight cover fixing base 6 interference fit that expands, the inner wall of the tight cover 5 that expands inwards contracts, the tight cover 5 that expands's inner wall and output shaft 31 interference fit, the realization makes output shaft 31 fixed for the tight cover fixing base 6 that expands, also realizes that output shaft 31 is fixed for base 4.

Structure of the robot arm 1 please refer to the prior art, the structure of the robot arm 1 is not detailed in this application.

Based on foretell structure, be connected through the tight cover 5 that expands between motor 3's the output shaft 31 and the base 4, adopt the tight connected mode of the cover 5 that expands to be difficult to take place not hard up, simultaneously, through setting up flat bearing 7, make to rotate seat 2 and supported on base 4 well, under flat bearing 7's support, motor 3's output shaft 31 is difficult to take place to buckle.

In the present embodiment, the base 4 is provided with a through hole 42 penetrating through the thickness direction thereof, and the through hole 42 is located opposite to the expansion sleeve 5. Therefore, the expansion sleeve 5 can be loosened from bottom to top under the base 4 through the through hole 42, and the output shaft 31 is convenient to detach. Preferably, the diameter of the through-hole 42 is larger than the outer diameter of the expansion sleeve 5, so that the entire expansion sleeve 5 can be removed and replaced if necessary.

In the present embodiment, a limiting device for limiting the rotation angle of the rotating base 2 relative to the base 4 is provided between the rotating base 2 and the base 4. Preferably, the limit means includes a limit switch 91 mounted on the lower surface of the rotating base 2 and a limit post 92 mounted on the upper surface of the base 4. The limit column 92 is a limit screw screwed on the base 4.

In this embodiment, the expansion sleeve fixing seat 6 is installed on the base 4 through a screw, and the screw passes through the base 4 from bottom to top below the base 4 and then is in threaded connection with the expansion sleeve fixing seat 6. Through the above connection mode, the screw can be positioned on the lower surface of the base 4, the screw cannot block the rotation of the rotating seat 2, and the structure is convenient to disassemble, assemble and produce.

In this embodiment, the bearing limit seat 8 is installed on the base 4 through a screw, and the screw passes through the base 4 from bottom to top from below the base 4 and then is screwed with the bearing limit seat 8. Through the above connection mode, the screw can be positioned on the lower surface of the base 4, the screw cannot block the rotation of the rotating seat 2, and the structure is convenient to disassemble, assemble and produce.

The features of the embodiments and embodiments described above may be combined with each other without conflict.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a desktop robot, includes the arm, rotates seat, motor and base, the arm is installed rotate the seat, the motor is installed rotate the seat, the output shaft of motor passes it stretches out its characterized in that down to rotate the seat:

the base is provided with a circular expansion sleeve fixing seat, and an expansion sleeve is arranged between the inner peripheral surface of the expansion sleeve fixing seat and the outer peripheral surface of the output shaft;

the base is also provided with a circular bearing limiting seat, and a plane bearing is arranged between the inner circumferential surface of the bearing limiting seat and the outer circumferential surface of the expansion sleeve fixing seat;

the lower surface of the plane bearing is in contact with the upper surface of the base, and the upper surface of the plane bearing is in contact with the lower surface of the rotating seat.

2. The tabletop robot of claim 1, wherein: the base is provided with a through hole penetrating through the thickness direction of the base, and the position of the through hole is opposite to the expansion sleeve.

3. The tabletop robot of claim 2, wherein: the aperture of the through hole is larger than the outer diameter of the expansion sleeve.

4. The tabletop robot of claim 1, wherein: and a limiting device used for limiting the rotation angle of the rotating seat relative to the base is arranged between the rotating seat and the base.

5. The tabletop robot of claim 4, wherein: the limiting device comprises a limiting switch arranged on the lower surface of the rotating seat and a limiting column arranged on the upper surface of the base.

6. The tabletop robot of claim 5, wherein: the limiting column is a limiting screw in threaded connection with the base.

7. The tabletop robot of any of claims 1 to 6, wherein: the expansion sleeve fixing seat is installed on the base through a screw, and the screw penetrates through the base from bottom to top below the base and then is in threaded connection with the expansion sleeve fixing seat.

8. The tabletop robot of any of claims 1 to 6, wherein: the bearing limiting seat is installed on the base through a screw, and the screw penetrates through the base from bottom to top below the base and then is in threaded connection with the bearing limiting seat.