Transposition device of mechanical arm

Abstract

The utility model provides a mechanical arm transposition device which comprises a mechanical arm rod, the bottom of the mechanical arm rod is fixedly connected with a connecting seat, the bottom of the connecting seat is fixedly connected with a mounting seat through a screw, the bottom of the mounting seat is fixedly connected with a hinge seat, and a connecting shaft is rotatably connected between the two sides of the inner wall of the hinge seat. Compared with the prior art, the connecting device has the following beneficial effects that after the threaded column is completely rotated and screwed into the mounting column, the threaded holes formed in the mounting column and the threaded column are communicated, then the positioning bolt is aligned to the threaded holes, and the threaded column is screwed into the connecting block. According to the transposition device of the mechanical arm, the threaded column is screwed into the mounting column and the threaded column and extends to the outside of the mounting column, the threaded column and the mounting column can be transversely reinforced through the positioning bolt, and therefore the phenomenon that threads of the threaded column and the mounting column are loosened can be effectively prevented, and the connection firmness of the transposition device of the mechanical arm is effectively improved.

Description

Technical Field

[0001] The utility model relates to a transfer device for a mechanical arm, belonging to the field of mechanical arm equipment. Background Art

[0002] The transfer device of the robot arm refers to a part on the robot arm that can change the direction or position of the tool or end effector without changing the posture of the robot arm to adapt to different work requirements. The transfer device of the robot arm usually includes components such as rotary joints, turntables, and adapters. These components can enable the end effector of the robot arm to operate in different directions or positions, thereby increasing the flexibility and adaptability of the robot arm.

[0003] In the prior art, the connection of the transfer device of the robot arm usually uses a rotor bearing for rotational connection. During the operation of the robot arm, the load gravity is too large, and the friction between the relative ends of the rotating shaft connected to the rotor bearing inside the transfer device increases, resulting in the slow rotation of the transfer device of the robot arm, thereby reducing the rotation flexibility of the transfer device of the robot arm.

[0004] In summary, the present invention provides a transfer device for a robot arm to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a transfer device for a robot arm to solve the problem of limited heat dissipation effect mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a rotation device of a mechanical arm, including a mechanical arm rod, the bottom of the mechanical arm rod is fixedly connected to a connecting seat, the bottom of the connecting seat is fixedly connected to a mounting seat by screws, the bottom of the mounting seat is fixedly connected to an articulated seat, a connecting shaft is rotatably connected between the two sides of the inner wall of the articulated seat, the axial surface of the connecting shaft is sleeved with a connecting block, the bottom of the connecting block is fixedly connected to a threaded column, the bottom of the connecting block is fixedly connected to a rotation structure by a threaded column, the rotation structure includes a mounting column, the bottom end of the threaded column passes through the top of the mounting column and extends to the interior of the mounting column, a positioning bolt passes through the top of one side of the mounting column, one end of the positioning bolt passes through the mounting column and the positioning bolt in sequence and extends to the outside of the mounting column, and the other end of the positioning bolt is fixedly connected to a rotating block.

[0007] Furthermore, the mounting column is threadedly connected to the threaded column, and the positioning bolt is threadedly connected to the mounting column.

[0008] Furthermore, the positioning bolt is threadedly connected to the threaded column, and the connecting block is fixedly connected to the connecting shaft.

[0009] Furthermore, a mounting ring is fixedly connected to the bottom of the mounting column, a clamping ring is fixedly connected to the bottom of the mounting ring, a base is clamped to the bottom of the mounting ring through the clamping ring, a clamping shaft is fixedly connected to the top of the base and located inside the clamping ring, a rotating groove is provided at the bottom of the mounting column and directly above the clamping shaft, the top of the clamping shaft extends to the inside of the rotating groove, a first rotor is clamped between the top of the clamping shaft and the top of the inner wall of the rotating groove, and a second rotor is evenly clamped between the annular surface of the inner wall of the rotating groove and the axial surface of the clamping shaft.

[0010] Furthermore, an annular groove matched with the clamping ring is provided on the top of the base, and the first rotor is in a spherical shape.

[0011] Furthermore, an annular surface of the inner wall of the rotating groove is provided with an annular groove for fitting the second rotor, and the second rotor is in a spherical shape.

[0012] Furthermore, a hemispherical groove is clamped on the top of the clamping shaft, and a hemispherical groove is opened on the top of the inner wall of the rotating groove.

[0013] Beneficial effects of the utility model:

[0014] The first rotor at the top of the clamping shaft can flexibly rotate with the top of the inner wall of the rotating groove, and the second rotor on the axial surface of the clamping shaft can flexibly rotate with the annular surface of the inner wall of the rotating groove, thereby reducing the friction force during the internal rotation of the transfer structure and effectively improving the rotation flexibility of the connection of the transfer device of the robot arm.

[0015] After the threaded column is completely rotated and screwed into the interior of the mounting column, the threaded holes opened in the interior of the mounting column and the threaded column will be in a connected state. Then the positioning bolt is aligned with the threaded hole, rotated into the interior of the mounting column and the threaded column and extended to the outside of the mounting column. The threaded column and the mounting column can be laterally reinforced by the positioning bolt, thereby effectively preventing the threaded column and the mounting column from loosening, and effectively improving the connection firmness of the transfer device of the robot arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic structural perspective view of a transfer device of a mechanical arm of the utility model;

[0018] Figure 2 This is a schematic front view of the structure of a transfer device of a mechanical arm of the utility model;

[0019] Figure 3 This is a main cross-sectional view showing the structure of a transfer device of a mechanical arm of the utility model;

[0020] Figure 4 for Figure 3 The structure of the card shaft is shown in a three-dimensional diagram.

[0021] In the figure: 1. Robot arm rod; 2. Connecting seat; 3. Mounting seat; 4. Connecting block; 5. Turning structure; 6. Connecting shaft; 7. Articulated seat; 8. Threaded column; 9. Positioning bolt; 10. Turning block; 51. Mounting column; 52. Mounting ring; 53. Clamping ring; 54. Base; 55. Clamping shaft; 56. First rotor; 57. Turning groove; 58. Second rotor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figure 1-4 The utility model provides a technical solution: a transfer device of a mechanical arm, including a mechanical arm rod 1, a connecting seat 2 is fixedly connected to the bottom of the mechanical arm rod 1, a mounting seat 3 is fixedly connected to the bottom of the connecting seat 2 by screws, a hinge seat 7 is fixedly connected to the bottom of the mounting seat 3, a connecting shaft 6 is rotatably connected between the two sides of the inner wall of the hinge seat 7, a connecting block 4 is sleeved on the axial surface of the connecting shaft 6, a threaded column 8 is fixedly connected to the bottom of the connecting block 4, a transfer structure 5 is fixedly connected to the bottom of the connecting block 4 by the threaded column 8, the transfer structure 5 includes a mounting column 51, the bottom end of the threaded column 8 passes through the top of the mounting column 51 and extends to the inside of the mounting column 51, a positioning bolt 9 is passed through the top of one side of the mounting column 51, one end of the positioning bolt 9 passes through the mounting column 51 and the positioning bolt 9 in sequence and extends to the mounting column 51 On the outside, the other end of the positioning bolt 9 is fixedly connected with a turning block 10, the mounting column 51 is threadedly connected to the threaded column 8, the positioning bolt 9 is threadedly connected to the mounting column 51, the positioning bolt 9 is threadedly connected to the threaded column 8, the connecting block 4 is fixedly connected to the connecting shaft 6, and the turning block 10 is used to facilitate the rotation of the positioning bolt 9. The positioning bolt 9 can be used to laterally reinforce the threaded column 8 and the mounting column 51, thereby effectively preventing the threaded column 8 and the mounting column 51 from loosening, and effectively improving the connection firmness of the rotation device of the robot arm. The mounting column 51 and the threaded column 8 are both provided with interconnected threaded holes, and are threadedly connected to the positioning bolt 9 through the threaded holes. When the threaded column 8 is fully rotated and screwed into the interior of the mounting column 51, the threaded holes opened in the interior of the mounting column 51 and the threaded column 8 will be in a connected state.

[0024] See also Figure 3 and Figure 4The bottom of the mounting column 51 is fixedly connected with a mounting ring 52, the bottom of the mounting ring 52 is fixedly connected with a clamping ring 53, the bottom of the mounting ring 52 is clamped with a base 54 through the clamping ring 53, the top of the base 54 and the inside of the clamping ring 53 are fixedly connected with a clamping shaft 55, a rotating groove 57 is provided at the bottom of the mounting column 51 and directly above the clamping shaft 55, the top of the clamping shaft 55 extends to the inside of the rotating groove 57, a first rotor 56 is clamped between the top of the clamping shaft 55 and the top of the inner wall of the rotating groove 57, a second rotor 58 is evenly clamped between the annular surface of the inner wall of the rotating groove 57 and the axial surface of the clamping shaft 55, the top of the base 54 An annular groove is provided to match the clamping ring 53, the first rotor 56 is in a spherical shape, the annular surface of the inner wall of the rotating groove 57 is provided with an annular groove to match the second rotor 58, the second rotor 58 is in a spherical shape, the top of the clamping shaft 55 is clamped with a hemispherical groove, and the top of the inner wall of the rotating groove 57 is provided with a hemispherical groove. The top of the clamping shaft 55 can be flexibly rotated with the top of the inner wall of the rotating groove 57 through the first rotor 56, and the axial surface of the clamping shaft 55 can be flexibly rotated with the annular surface of the inner wall of the rotating groove 57 through the second rotor 58, so that the rotation flexibility of the connection of the rotation device of the robot arm can be effectively improved through the rotation structure 5.

[0025] Specific implementation method: The connecting seat 2 at the bottom of the mechanical arm rod 1 is fixedly connected to the mounting seat 3 at the top of the hinge seat 7 by screws, and then the threaded column 8 at the bottom of the connecting block 4 is aligned with the threaded groove at the top of the mounting column 51, and rotated and screwed in. When the threaded column 8 is completely rotated and screwed into the interior of the mounting column 51, the threaded holes opened in the interior of the mounting column 51 and the threaded column 8 will be in a connected state, and then the positioning bolt 9 is aligned with the threaded hole, and the positioning bolt 9 is rotated by the rotating block 10, so that the positioning bolt 9 can be rotated into the interior of the mounting column 51 and the threaded column 8 in turn and extend to the outside of the mounting column 51. The threaded column 8 and the mounting column 51 can be laterally reinforced by the positioning bolts 9, thereby effectively preventing the threaded column 8 and the mounting column 51 from loosening, effectively improving the connection firmness of the robot arm's rotation device, and the top of the clamping shaft 55 can be flexibly rotated with the top of the inner wall of the rotation groove 57 through the first rotor 56, and the axial surface of the clamping shaft 55 can be flexibly rotated with the annular surface of the inner wall of the rotation groove 57 through the second rotor 58, thereby reducing the friction force during the internal rotation of the rotation structure 5, and effectively improving the rotation flexibility of the connection of the rotation device of the robot arm through the rotation structure 5.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A robot arm transfer device, comprising a robot arm rod (1), characterized in that: The bottom of the mechanical arm rod (1) is fixedly connected to a connecting seat (2), the bottom of the connecting seat (2) is fixedly connected to a mounting seat (3) by screws, the bottom of the mounting seat (3) is fixedly connected to an articulated seat (7), a connecting shaft (6) is rotatably connected between the two sides of the inner wall of the articulated seat (7), the axial surface of the connecting shaft (6) is sleeved with a connecting block (4), the bottom of the connecting block (4) is fixedly connected to a threaded column (8), and the bottom of the connecting block (4) is fixedly connected to the threaded column (8). A transfer structure (5) is fixedly connected, the transfer structure (5) comprising a mounting column (51), the bottom end of the threaded column (8) passes through the top end of the mounting column (51) and extends to the inside of the mounting column (51), a positioning bolt (9) passes through the top of one side of the mounting column (51), one end of the positioning bolt (9) passes through the mounting column (51) and the positioning bolt (9) in sequence and extends to the outside of the mounting column (51), and the other end of the positioning bolt (9) is fixedly connected to a transfer block (10).

2. A transfer device for a robot arm according to claim 1, characterized in that: The installation column (51) is threadedly connected to the threaded column (8), and the positioning bolt (9) is threadedly connected to the installation column (51).

3. The transfer device of a robot arm according to claim 1, characterized in that: The positioning bolt (9) is threadedly connected to the threaded column (8), and the connecting block (4) is fixedly connected to the connecting shaft (6).

4. The transfer device of a robot arm according to claim 1, characterized in that: The bottom of the mounting column (51) is fixedly connected to a mounting ring (52), the bottom of the mounting ring (52) is fixedly connected to a snap ring (53), the bottom of the mounting ring (52) is snapped to a base (54) via the snap ring (53), the top of the base (54) and located inside the snap ring (53) is fixedly connected to a snap shaft (55), a rotating groove (57) is provided at the bottom of the mounting column (51) and located directly above the snap shaft (55), the top of the snap shaft (55) extends to the inside of the rotating groove (57), a first rotor (56) is snapped between the top of the snap shaft (55) and the top of the inner wall of the rotating groove (57), and a second rotor (58) is evenly snapped between the annular surface of the inner wall of the rotating groove (57) and the axial surface of the snap shaft (55).

5. The transfer device of a robot arm according to claim 4, characterized in that: An annular groove matching the clamping ring (53) is provided on the top of the base (54), and the first rotor (56) is in the shape of a sphere.

6. The transfer device of a robot arm according to claim 4, characterized in that: The inner wall of the rotating groove (57) is provided with an annular groove for fitting the second rotor (58) therein, and the second rotor (58) is in the shape of a sphere.

7. The transfer device of a robot arm according to claim 4, characterized in that: A hemispherical groove is clamped on the top of the clamping shaft (55), and a hemispherical groove is opened on the top of the inner wall of the rotating groove (57).

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