Robot base joint mechanism

Abstract

The utility model belongs to the technical field of robot equipment, and particularly relates to a robot base joint mechanism which comprises a base body and a fixed bottom plate arranged on the base body, a driving motor is arranged on the fixed bottom plate, the driving motor is fixedly connected with the inner wall of the base body through a supporting frame, and the supporting frame is fixedly connected with the base body. A driving part is arranged at the output end of the driving motor; a plane bearing is arranged at the top of the base body, a rotating seat is arranged on the plane bearing, a driven part buckled with the driving part is arranged at the bottom of the rotating seat, and a cleaning assembly abutting against the outer wall of the base body is arranged on the rotating seat; the driving piece and the driven piece are mutually buckled to rotate, the driving piece and the driven piece guarantee transmission, and extrusion in the horizontal direction and the vertical direction is avoided, so that the bending moment force of the joint robot to the rotating seat cannot be transmitted to the driving motor, and the service life of the driving motor is prolonged; and meanwhile, the plane bearing can ensure that the rotating seat rotates more smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of robot equipment, and in particular relates to a robot base joint mechanism. Background Art

[0002] With the development of economy and the progress of science and technology, robotic arms have been gradually applied to industrial production, especially in the fields of painting, welding, handling, etc. The rotating base of the robot, as the base of the robot, can not only provide support for the robot, but also enable the robot to rotate, ensuring that the robot can rotate 360 ​​times without dead angles.

[0003] Patent No. CN216180652U discloses a rotary base of an articulated robot. This technology discloses "including a base body, the base body is a cylindrical body with openings at the top and bottom, and a fixed bottom plate at the bottom, a slewing bearing is provided on the opening, a rotating fixed plate is provided on the slewing bearing, a driving mechanism built into the base body is provided at the center of the rotating fixed plate, a plurality of circumferentially evenly distributed ventilation holes are provided on the side wall of the base body, and a filter screen is also provided in the base body, etc., which has the technical effect of realizing the base body driving the articulated robot to rotate";

[0004] The robot's rotating base uses a motor that is directly connected to a rotating fixed plate. In this way, the forces generated during the handling and working process of the articulated robot will be transmitted to the motor through the rotating fixed plate, causing the motor's drive shaft to be subjected to bending moment, thereby affecting the motor's service life.

[0005] In order to solve the above problems, a robot base joint mechanism is proposed in the present application. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a robot base joint mechanism, which has the characteristics of good transmission effect and can increase the service life of the motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a robot base joint mechanism, comprising a base body and a fixed base plate arranged on the base body, a drive motor is provided on the fixed base plate, the drive motor is fixedly connected to the inner wall of the base body through a support frame, and a drive member is provided at the output end of the drive motor; a plane bearing is provided on the top of the base body, a rotating seat is provided on the plane bearing, a follower engaged with the drive member is provided at the bottom of the rotating seat, and a cleaning component abutting against the outer wall of the base body is provided on the rotating seat.

[0008] As a preferred embodiment of the robot base joint mechanism of the utility model, a support plate is provided in the middle of the base body, and a slewing bearing is provided on the support plate and between the inner wall of the base body and the outer wall of the rotating seat.

[0009] As a preferred embodiment of the robot base joint mechanism of the utility model, a plurality of rectangular driving blocks are equidistantly arranged on the driving member, and a rectangular groove engaging with the rectangular driving blocks is arranged on the driven member.

[0010] As a preferred embodiment of the robot base joint mechanism of the utility model, the width of the rectangular groove is equal to the width of the rectangular driving block, and the depth of the rectangular groove is greater than the height of the rectangular driving block.

[0011] As a preferred embodiment of the robot base joint mechanism of the utility model, a containing cavity is provided inside the rotating seat, and a first heat dissipation hole and a second heat dissipation hole connected to the containing cavity are respectively provided on the inner side and the outer side of the base body.

[0012] As a preferred embodiment of a robot base joint mechanism of the utility model, the first heat dissipation hole and the second heat dissipation hole are staggered, and a cleaning hole communicating with the accommodating cavity is provided on the fixed bottom plate.

[0013] As a preferred embodiment of a robot base joint mechanism of the utility model, the cleaning component includes a connecting rod vertically connected to the rotating seat, and a cleaning cotton abutting against an outer wall of the base body is provided on the outer side of the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The driving member and the driven member of the utility model are interlocked and rotated with each other. While the driving member and the driven member ensure transmission, there is no extrusion in the horizontal and vertical directions, so that the bending moment force of the articulated robot on the rotating seat cannot be transmitted to the driving motor, thereby improving the service life of the driving motor; at the same time, the plane bearing can ensure that the rotating seat rotates more smoothly.

[0016] 2. By setting mutually staggered heat dissipation holes, the heat dissipation of the drive motor can be ensured while preventing dust from entering the base body. At the same time, the cleaning component can clean the outer wall of the base body to prevent dust accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is an axonometric view of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the driving member and the driven member in the utility model;

[0021] Figure 4 It is a cross-sectional view of the utility model.

[0022] In the figure: 1. base body; 2. fixed bottom plate; 3. driving motor; 4. support frame; 5. driving member; 501. rectangular driving block; 6. plane bearing; 7. rotating seat; 8. driven member; 801. rectangular groove; 9. cleaning component; 901. connecting rod; 902. cleaning cotton; 10. support plate; 11. slewing bearing; 12. accommodating cavity; 13. first heat dissipation hole; 14. second heat dissipation hole; 15. cleaning hole. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown;

[0026] A robot base joint mechanism comprises a base body 1 and a fixed base plate 2 arranged on the base body 1, a driving motor 3 is arranged on the fixed base plate 2, the driving motor 3 is fixedly connected to the inner wall of the base body 1 through a supporting frame 4, and a driving member 5 is arranged at the output end of the driving motor 3; a plane bearing 6 is arranged on the top of the base body 1, a rotating seat 7 is arranged on the plane bearing 6, a follower 8 engaged with the driving member 5 is arranged at the bottom of the rotating seat 7, and a cleaning component 9 abutting against the outer wall of the base body 1 is arranged on the rotating seat 7.

[0027] It should be noted that: in this embodiment, the fixed base plate 2 can be fixed to the working plane by bolts and other fixing parts, and a number of studs for fixing the articulated robot are vertically fixed on the rotating seat 7; the plane bearing 6 is higher than the top surface of the base body 1, thereby supporting and rotating the rotating seat 7.

[0028] In this embodiment: the driving member 5 and the driven member 8 are interlocked and rotated with each other, and the driving member 5 and the driven member 8 ensure transmission while there is no extrusion in the horizontal and vertical directions, so that the bending moment force of the articulated robot on the rotating seat 7 cannot be transmitted to the driving motor 3, thereby increasing the service life of the driving motor 3; at the same time, the plane bearing 6 can ensure that the rotating seat 7 rotates more smoothly.

[0029] In an optional embodiment, a support plate 10 is provided in the middle of the base body 1 , and a slewing bearing 11 is provided on the support plate 10 and between the inner wall of the base body 1 and the outer wall of the rotating seat 7 .

[0030] In this embodiment, the slewing bearing 11 can prevent the rotating seat 7 from deflecting on one hand, and on the other hand, the slewing bearing 11 can ensure that the rotating seat 7 rotates more smoothly.

[0031] like Figure 3 As shown;

[0032] In an optional embodiment, a plurality of rectangular driving blocks 501 are equidistantly provided on the driving member 5, and a rectangular groove 801 which is engaged with the rectangular driving block 501 is provided on the driven member 8, the width of the rectangular groove 801 is equal to the width of the rectangular driving block 501, and the depth of the rectangular groove 801 is greater than the height of the rectangular driving block 501.

[0033] In this embodiment: the rectangular groove 801 of the follower 8 at the bottom of the rotating seat 7 is aligned with the rectangular driving block 501 on the driving member 5, the rotating seat 7 is pressed downward to make the rectangular driving block 501 enter the rectangular groove 801, the driving motor 3 is started to drive the driving member 5 to rotate, and the driving member 5 drives the follower 8 and the rotating seat 7 to rotate.

[0034] like Figure 4 As shown;

[0035] In an optional embodiment, a accommodating cavity 12 is provided inside the rotating seat 7, and a first heat dissipation hole 13 and a second heat dissipation hole 14 connected to the accommodating cavity 12 are respectively provided on the inner and outer sides of the base body 1, and the first heat dissipation hole 13 and the second heat dissipation hole 14 are staggered, and a cleaning hole 15 connected to the accommodating cavity 12 is provided on the fixed bottom plate 2.

[0036] In this embodiment: the dissipation holes that are offset from each other can ensure that the drive motor 3 dissipates heat while preventing dust from entering the base body 1. At the same time, the cleaning component 9 can clean the outer wall of the base body 1 to prevent dust accumulation. The dust accumulated in the accommodating cavity 12 can be sucked out through the cleaning hole 15.

[0037] In an optional embodiment, the cleaning assembly 9 includes a connecting rod 901 vertically connected to the rotating seat 7 , and a cleaning cotton 902 abutting against the outer wall of the base body 1 is provided on the outer side of the connecting rod 901 .

[0038] In this embodiment, the rotating seat 7 rotates while driving the connecting rod 901 to rotate, and the connecting rod 901 uses the cleaning cotton 902 to evenly clean the outer wall of the base body 1.

[0039] The working principle and use process of the utility model are as follows: during actual assembly, the driving motor 3 is first fixed coaxially with the base body 1 through the support frame 4, the slewing bearing 11 is placed inside the base body 1 and abutted with the support plate 10, the rotating seat 7 is placed in the base body 1 and ensured to be coaxial with the output shaft of the driving motor 3, and at the same time, the rectangular groove 801 of the follower 8 at the bottom of the rotating seat 7 is aligned with the rectangular driving block 501 on the driving member 5, the rotating seat 7 is pressed downward so that its top abuts against the plane bearing 6, and the middle is inserted into the slewing bearing 11, and at the same time, the rectangular driving block 501 enters the rectangular groove 801; the driving motor 3 is started to drive the driving member 5 to rotate, and the driving member 5 drives the follower 8 and the rotating seat 7 to rotate, and the articulated robot is fixed to the rotating seat 7 by the studs, so as to rotate with the rotating seat 7, and at this time, the cleaning cotton 902 evenly cleans the outer wall of the base body 1.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A robot base joint mechanism, comprising a base body (1) and a fixed base plate (2) arranged on the base body (1), characterized in that: A driving motor (3) is provided on the fixed bottom plate (2); the driving motor (3) is fixedly connected to the inner wall of the base body (1) via a support frame (4); and a driving member (5) is provided at the output end of the driving motor (3); A plane bearing (6) is provided on the top of the base body (1), a rotating seat (7) is provided on the plane bearing (6), a follower (8) engaged with the driving member (5) is provided at the bottom of the rotating seat (7), and a cleaning component (9) abutting against the outer wall of the base body (1) is provided on the rotating seat (7).

2. The robot base joint mechanism according to claim 1, characterized in that: A support plate (10) is provided in the middle of the base body (1), and a slewing bearing (11) is provided on the support plate (10) and between the inner wall of the base body (1) and the outer wall of the rotating seat (7).

3. The robot base joint mechanism according to claim 2, characterized in that: The driving member (5) is provided with a plurality of rectangular driving blocks (501) at equal intervals, and the driven member (8) is provided with rectangular grooves (801) that are engaged with the rectangular driving blocks (501).

4. The robot base joint mechanism according to claim 3, characterized in that: The width of the rectangular groove (801) is equal to the width of the rectangular driving block (501), and the depth of the rectangular groove (801) is greater than the height of the rectangular driving block (501).

5. The robot base joint mechanism according to claim 4, characterized in that: The rotating seat (7) is provided with a receiving cavity (12) inside, and the inner side and the outer side of the base body (1) are respectively provided with a first heat dissipation hole (13) and a second heat dissipation hole (14) connected to the receiving cavity (12).

6. The robot base joint mechanism according to claim 5, characterized in that: The first heat dissipation hole (13) and the second heat dissipation hole (14) are arranged in a staggered manner, and a cleaning hole (15) communicating with the accommodating cavity (12) is provided on the fixed bottom plate (2).

7. The robot base joint mechanism according to claim 6, characterized in that: The cleaning assembly (9) comprises a connecting rod (901) vertically connected to the rotating seat (7), and a cleaning cotton (902) abutting against the outer wall of the base body (1) is provided on the outer side of the connecting rod (901).

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