Mechanical arm convenient to maintain

Abstract

The utility model discloses a mechanical arm convenient to maintain, which comprises a mechanical arm main body and further comprises a connecting module connected with a first mechanical arm and a second mechanical arm, the connecting module is connected with the first mechanical arm and the second mechanical arm, and the connecting module comprises a 360-degree rotating joint and a U-shaped rotating joint. The 360-degree rotating joint drives the first mechanical arm to rotate freely within the 360-degree range, and the U-shaped rotating joint drives the second mechanical arm to rotate freely within the 180-degree range. The mechanical arm has the advantages that the 360-degree rotating joint and the U-shaped rotating joint which form the connecting module are used for connecting and driving the two mechanical arms, the 360-degree rotating joint and the U-shaped rotating joint can be selectively installed according to needs during use, adjustment of the motion mode of the mechanical arms is achieved, use is convenient, cost is low, and practicability is high. And by means of rapid disassembly and assembly of a 360-degree rotating platform and a 360-degree rotating joint mounting plate on the 360-degree rotating joint and rapid disassembly and assembly of a U-shaped rotating seat and a U-shaped rotating assembly in the U-shaped rotating joint, rapid disassembly and assembly of the mechanical arm are achieved, and the mechanical arm is convenient to overhaul and maintain.

Description

Technical Field

[0001] The utility model particularly relates to a mechanical arm which is easy to maintain. Background Art

[0002] The robotic arm is the most widely used automated mechanical device in the field of robotics. It has the advantages of high precision and flexible operation, and is widely used in various fields such as industrial manufacturing, medical treatment, entertainment services, military, semiconductor manufacturing, etc.

[0003] In daily life, robotic arms will inevitably malfunction and require repair and maintenance during long-term use. However, due to the design characteristics of current robotic arms, each support arm is connected by multiple sets of bolts or direct welding. This connection method makes it very time-consuming and labor-intensive to repair and disassemble the robotic arm when a certain section of the robotic arm is damaged, making the maintenance of the robotic arm very difficult.

[0004] In addition, due to the limitations of the joints at the connection of the robotic arm, the movement mode of a certain section of the robotic arm is limited by the joint movement mode. For example, the turntable connection and the rotary joint (similar to the hinged) connection. When the movement mode of the robotic arm needs to be adjusted, for example, when the rotary joint connection is changed to a turntable connection, the entire robotic arm needs to be replaced. It is not possible to only change the movement joints. The adjustment time is long, the versatility is poor, and the cost of use is high. Utility Model Content

[0005] The technical problem to be solved by the present invention is to solve the problem of inconvenient maintenance and high cost of adjusting the motion mode of the existing robotic arm mentioned in the background art during use.

[0006] In response to the above technical problems, a robotic arm that is easy to maintain is proposed; it is achieved by the following technical solution: a robotic arm that is easy to maintain, including a robotic arm body, the robotic arm body including a first robotic arm and a second robotic arm, characterized in that: it also includes a connecting module for connecting the first robotic arm and the second robotic arm, the connecting module is detachable to connect the first robotic arm and the second robotic arm, the connecting module includes a 360° rotating joint and a U-shaped rotating joint, one end of the 360° rotating joint and the U-shaped rotating joint is detachably connected, and the other end is respectively connected to the first robotic arm and the second robotic arm, the 360° rotating joint drives the first robotic arm to rotate freely within a range of 360°, and the U-shaped rotating joint drives the second robotic arm to rotate freely within a range of 180°, and the number and connection angle of the 360° rotating joints and the U-shaped rotating joints in the connecting module are adjustable.

[0007] The preferred technical solution of the present utility model is that the 360° rotating joint includes a 360° rotating platform and a 360° rotating joint mounting plate. The 360° rotating joint mounting plate is detachably connected to the robotic arm, and the 360° rotating joint mounting plate is detachably connected to the 360° rotating platform. The 360° rotating platform drives the 360° rotating joint mounting plate to rotate controllably within 360°. The setting of the 360° rotating platform realizes a turntable connection, so that the robotic arm can rotate within 360°, which is convenient and easy to use.

[0008] In the preferred technical solution of the present invention, the 360° rotating platform includes a first hollow rotating platform and a first hollow rotating platform mounting box. The first hollow rotating platform is arranged in the first hollow rotating platform mounting box. A cross mounting frame is provided on the first hollow rotating platform. The first hollow rotating platform is detachably connected to the 360° rotating joint mounting plate through the cross mounting frame. The setting of the cross mounting frame facilitates the quick connection of the robotic arm and the connection module, and facilitates the maintenance of the robotic arm.

[0009] Preferably, the 360° rotating joint mounting plate includes a limiting ring and a cross limiting groove. The limiting ring is arranged on the surface of the 360° rotating joint mounting plate, and the cross limiting groove is arranged in the limiting ring on the 360° rotating joint mounting plate. The cross limiting groove is cooperated and connected with the cross mounting bracket on the first hollow rotating platform. The setting of the cross limiting groove facilitates the connection between the 360° rotating platform and the 360° rotating joint mounting plate, thereby realizing the rapid disassembly and assembly of the robotic arm and the connection module, and facilitating the disassembly and maintenance of the robotic arm.

[0010] In the preferred embodiment of the technical solution of the present invention, a mounting hole is provided on the limiting ring, and the limiting ring is detachably connected to the cross mounting frame through the mounting hole, thereby connecting the robotic arm and the connection module. Such a setting facilitates the rapid disassembly and assembly of the robotic arm and is easy to use.

[0011] The preferred technical solution of the present utility model is that the U-shaped rotating joint includes a U-shaped rotating assembly and a U-shaped rotating seat. The U-shaped rotating seat is detachably connected to the robotic arm, and the U-shaped rotating assembly is detachably connected to the U-shaped rotating seat. The U-shaped rotating assembly drives the U-shaped rotating seat to rotate controllably within a range of 180°. The setting of the U-shaped rotating joint realizes the rotary joint-type connection of the robotic arm, which is easy to use.

[0012] Preferably, the U-shaped rotating assembly includes a second hollow rotating platform and a second hollow rotating platform mounting box. There are two second hollow rotating platforms. The two second hollow rotating platforms are arranged opposite to each other in the second hollow rotating platform mounting box. A straight mounting bracket is provided on the second hollow rotating platform. The second hollow rotating platform is detachably connected to the U-shaped rotating seat through the straight mounting bracket. The arrangement of the straight mounting bracket facilitates the quick connection of the robotic arm and the connection module, and facilitates the maintenance of the robotic arm.

[0013] The preferred technical solution of the present invention is that the U-shaped rotating seat includes an articulated platform, hollow rotating platform mounting grooves are provided on both sides of the articulated platform, the second hollow rotating platform in the U-shaped rotating assembly is arranged in the hollow rotating platform mounting groove, and a straight limit groove is provided in the hollow rotating platform mounting groove, which cooperates with the straight mounting frame on the second hollow rotating platform, and a mounting groove sealing plate for fixing the U-shaped rotating seat and the U-shaped rotating assembly is also provided on the articulated platform. The U-shaped rotating seat and the U-shaped rotating assembly are quickly disassembled and assembled under the action of the mounting groove sealing plate. The setting of the mounting groove sealing plate facilitates the rapid disassembly and assembly of the U-shaped rotating seat and the U-shaped rotating assembly, thereby realizing the rapid disassembly and assembly of the robotic arm, and facilitating the inspection and maintenance of the robotic arm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The technical solution of the present invention utilizes the 360° rotating joint and the U-shaped rotating joint that constitute the connecting module to connect and drive two robotic arms. When in use, the 360° rotating joint and the U-shaped rotating joint can be selectively installed according to needs to adjust the motion mode of the robotic arm. It is easy to use and low in cost. The rapid disassembly and assembly of the 360° rotating platform and the 360° rotating joint mounting plate on the 360° rotating joint and the rapid disassembly and assembly of the U-shaped rotating seat and the U-shaped rotating component in the U-shaped rotating joint can be utilized to realize rapid disassembly of the robotic arm, facilitate the inspection and maintenance of the robotic arm, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the connection module;

[0018] Figure 3 It is a three-dimensional schematic diagram of a 360° rotating joint;

[0019] Figure 4 Explode for 360° rotating joints Figure 1 ;

[0020] Figure 5 Explode for 360° rotating joints Figure 2 ;

[0021] Figure 6 It is a three-dimensional schematic diagram of a U-shaped rotary joint;

[0022] Figure 7 This is the exploded diagram of the U-shaped revolute joint;

[0023] Figure 8 It is a partial cross-sectional view of the U-shaped rotary joint;

[0024] Figure 9 This is the connection module after the robot arm's motion mode is adjusted. Figure 1 ;

[0025] Figure 10 This is the connection module after the robot arm's motion mode is adjusted. Figure 2 ;

[0026] Explanation of the accompanying drawings: 1-robotic arm body, 11-first robotic arm, 12-second robotic arm, 2-connecting module, 3-360° rotation joint, 4-U-shaped rotation joint, 5-360° rotation assembly, 51-first hollow rotating platform, 52-first hollow rotating platform mounting box, 53-cross mounting frame, 54-first left box, 55-first right box, 56-mounting hole, 57-connecting skirt, 58-functional hole, 6-360° rotation joint mounting plate, 61-limiting ring, 62-cross limiting groove, 7-U-shaped rotation assembly, 71-second hollow rotating platform, 72-second hollow rotating platform mounting box, 73-one-line mounting frame, 74-second left box, 75-second right box, 8-U-shaped rotating seat, 81-articulating table, 82-mounting plate, 83-hollow rotating platform mounting slot, 84-one-line limiting slot, 85-mounting slot sealing plate, 86-C-shaped limiting block. DETAILED DESCRIPTION

[0027] The following is a combination of the appended examples of the present invention Figure 1-10 , the technical solutions in the embodiments of the present utility model are described in detail. Example

[0028] like Figure 1 As shown, a robot arm that is easy to maintain includes a robot arm body 1 and a connection module 2. The robot arm body 1 includes a first robot arm 11 and a second robot arm 12. The first robot arm 11 and the second robot arm 12 are detachably connected to each other through the connection module 2. The connection module 2 includes a 360° rotating joint 3 that drives the robot arm to move within a range of 360° and a U-shaped rotating joint 4 that drives the robot arm to move within a range of 180°. The 360° rotating joint 3 and the U-shaped rotating joint 4 are detachably connected.

[0029] The robot arm body 1 is the main component of the robot arm, and its main function is to achieve specific movements and complete specific tasks. The robot arm body 1 is an existing device and can be used directly.

[0030] The main function of the connecting module 2 is to connect the two adjacent robotic arms on the robotic arm body 1. At the same time, the connecting module 2 also has driving capability, driving the robotic arms to move at the connection between the connecting module 2 and the two robotic arms of the robotic arm body 1 to complete the movement of the robotic arms. In addition, the connecting module 2 includes a 360° rotating joint 3 and a U-shaped rotating joint 4. The 360° rotating joint 3 drives the robotic arm connected to it to rotate within a range of 360°, and the U-shaped rotating joint 4 drives the robotic arm connected to it to rotate within a range of 180°.

[0031] like Figure 1 and 2 As shown, the connection module 2 includes a 360° rotating joint 3 and a U-shaped rotating joint 4 . One end of the 360° rotating joint 3 and the U-shaped rotating joint 4 are detachably connected, and the other end is connected to the first robotic arm 11 and the second robotic arm 12 .

[0032] like Figure 1 、 3 As shown in , 4 and 5, the 360° rotating joint 3 includes a 360° rotating component 5 and a 360° rotating joint mounting plate 6. The 360° rotating component 5 and the 360° rotating joint mounting plate 6 are detachably connected. The 360° rotating joint mounting plate 6 is connected to the first robotic arm 11. The main function of the 360° rotating component 5 is to play a driving role. The main function of the 360° rotating joint mounting plate 6 is to connect the first robotic arm 11 and the 360° rotating component 5. The 360° rotating component 5 can drive the 360° rotating joint mounting plate 6 to rotate, thereby driving the first robotic arm 11 to rotate freely within a 360° range.

[0033] The 360° rotating assembly 5 includes a first hollow rotating platform 51 and a first hollow rotating platform mounting box 52. The first hollow rotating platform 51 is an existing hollow rotating platform and can be used directly. The main function of the first hollow rotating platform 51 is to provide driving force for the first robotic arm 11, and drive the first robotic arm 11 to rotate through the first hollow rotating platform 51. The main function of the first hollow rotating platform mounting box 52 is to serve as a carrier for installing the first hollow rotating platform 51.

[0034] The first hollow rotating platform mounting box 52 is a hollow metal box with a rectangular cross-section. In order to facilitate the installation of the first hollow rotating platform 51, the first hollow rotating platform mounting box 52 consists of two side boxes, one of which is a first left box 54 and the other is a first right box 55. The first left box 54 and the first right box 55 are detachably fixed together by screws to form a cavity for mounting the first hollow rotating platform 51. The first hollow rotating platform 51 is fixed in this cavity by screws.

[0035] In order to facilitate the installation of the first hollow rotating platform 51, the first left box 54 and the first right box 55 are semi-closed metal boxes, that is, one side opening of the first left box 54 and the first right box 55 is not closed, and in order to facilitate the connection of the first hollow rotating platform 51 with the 360° rotating joint mounting plate 6, a circular hole is provided perpendicular to the side surface of the largest size of the first right box 55, which passes through the first right box 55. This hole is named functional hole 58. The size of the functional hole 58 is the same as the size of the circular rotating platform on the first hollow rotating platform 51. The circular rotating platform in the first hollow rotating platform 51 is exposed to the outside of the first right box 55 through the functional hole 58, which is convenient for connection with the 360° rotating joint mounting plate 6.

[0036] The connection between the first left box 54 and the first right box 55 is a common screw connection, and the 360° rotating joint mounting plate 6 is fixed in the first hollow rotating platform mounting box 52 by screws. This is a conventional fixing method and will not be described in detail here.

[0037] In order to facilitate the connection between the 360° rotating joint mounting plate 6 and the circular rotating platform on the first hollow rotating platform 51, a cross mounting bracket 53 is fixed on the circular rotating platform on the first hollow rotating platform 51 with screws. The cross mounting bracket 53 is a cross-shaped block made of metal. Circular holes are provided on the surface of the cross mounting bracket 53 corresponding to the circular threaded holes on the circular rotating platform on the first hollow rotating platform 51. The cross mounting bracket 53 is fixed to the circular rotating platform on the first hollow rotating platform 51 by screws. When the circular rotating platform is powered on and rotated, it can drive the cross mounting bracket 53 to rotate accordingly. The function of the cross mounting bracket 53 is to connect the first hollow rotating platform 51 and the 360° rotating joint mounting plate 6, so that the first robotic arm 11 connected to the 360° rotating joint mounting plate 6 can move accordingly.

[0038] The 360° rotating joint mounting plate 6 includes a limiting ring 61. The 360° rotating joint mounting plate 6 is a square plate with a certain thickness. The 360° rotating joint mounting plate 6 is connected to the first robotic arm 11 by screws. A circular metal ring is protruding from the surface of the 360° rotating joint mounting plate 6 perpendicular to the 360° rotating joint mounting plate 6. This ring is named a limiting ring 61. The limiting ring 61 is centered on the 360° rotating joint mounting plate 6, and in order to facilitate the connection between the 360° rotating joint mounting plate 6 and the first hollow rotating platform 51, the inner diameter of the limiting ring 61 is slightly smaller than the outer diameter of the circular rotating platform on the first hollow rotating platform 51 that exposes the first right side box 55.

[0039] At the same time, in order to ensure the stability of the connection, a cross limiting groove 62 is recessed on the bottom surface of the limiting ring 61 in the 360° rotating joint mounting plate 6, which cooperates with the cross mounting bracket 53. The cross mounting bracket 53 can be clamped in the cross limiting groove 62. In order to ensure the stability of the clamping, threaded holes are opened perpendicular to the end faces on the four end faces of the cross mounting bracket 53. At the same time, a circular mounting hole 56 is also opened at the corresponding position of the limiting ring 61. The cross mounting bracket 53 and the limiting ring 61 can be connected together by screws through the mounting hole 56 to complete the connection between the first hollow rotating platform 51 and the first robotic arm 11.

[0040] In order to facilitate the connection of the 360° rotating joint 3 and the U-shaped rotating joint 4, a rectangular plate is protruded perpendicularly to the side along the side contour on the side of the first left box 54 and the first right box 55. This rectangular plate is named a connecting skirt 57. A circular through hole is opened on the connecting skirt 57. The 360° rotating joint 3 and the U-shaped rotating joint 4 are fixed together using the connecting skirt 57 and screws.

[0041] like Figure 1 、 6 As shown in , 7 and 8, the U-shaped rotary joint 4 includes a U-shaped rotary component 7 and a U-shaped rotary seat 8. The U-shaped rotary component 7 and the U-shaped rotary seat 8 are detachably connected. The U-shaped rotary seat 8 is connected to the second robotic arm 12. The main function of the U-shaped rotary component 7 is to drive, and the main function of the U-shaped rotary seat 8 is to connect the second robotic arm 12 and the U-shaped rotary component 7. The U-shaped rotary seat 8 can be driven to rotate by the U-shaped rotary component 7, thereby driving the second robotic arm 12 to rotate freely within a range of 180°.

[0042] The U-shaped rotating assembly 7 includes a second hollow rotating platform 71 and a second hollow rotating platform mounting box 72. The second hollow rotating platform 71 is an existing hollow rotating platform and can be used directly. The main function of the second hollow rotating platform 71 is to provide driving force for the second robotic arm 12, and the second robotic arm 12 is driven to rotate by the second hollow rotating platform 71. The main function of the second hollow rotating platform mounting box 72 is to serve as a carrier for installing the second hollow rotating platform 71. The second hollow rotating platform 71 is installed in the second hollow rotating platform mounting box 72.

[0043] The second hollow rotating platform mounting box 72 is overall "U"-shaped. The second hollow rotating platform mounting box 72 consists of two "L"-shaped side boxes. One of the "L"-shaped side boxes is named the second left box 74, and the other "L"-shaped side box is named the second right box 75. The two shorter horizontal ends of the second left box 74 and the second right box 75 are aligned. The second left box 74 and the second right box 75 are connected together by screws to form a "U"-shaped second hollow rotating platform mounting box 72.

[0044] The second left box 74 and the second right box 75 are hollow metal boxes, and a second hollow rotating platform 71 is installed in the second left box 74 and the second right box 75 by screws. At the same time, a circular hole is opened on the opposite surfaces of the second left box 74 and the second right box 75. The circular rotating platform in the second hollow rotating platform 71 is exposed to the outside of the second left box 74 and the second right box 75 through this circular hole. The circular rotating platforms in the second hollow rotating platforms 71 on the second left box 74 and the second right box 75 are distributed opposite to each other, and the U-shaped rotating seat 8 is installed on this circular rotating platform. The second hollow rotating platform 71 can drive the U-shaped rotating seat 8 to rotate controllably within a range of 180°, thereby driving the second robotic arm 12 to rotate.

[0045] In order to facilitate the connection between the U-shaped rotating seat 8 and the second hollow rotating platform 71, two straight mounting brackets 73 are fixed to the rotating platform of the second hollow rotating platform 71 with screws. The straight mounting bracket 73 is a mounting bracket with a rectangular cross-section. The straight mounting bracket 73 is fixed to the rotating platform on the second hollow rotating platform 71 by screws, and the two straight mounting brackets 73 are distributed in parallel and spaced apart.

[0046] The U-shaped rotating seat 8 includes a hinged platform 81 and a mounting plate 82. The mounting plate 82 is a metal plate with a rectangular cross-section. The hinged platform 81 is a rectangular metal block. One end of the hinged platform 81 is welded to the mounting plate 82. The thickness of the hinged platform 81 is slightly smaller than the distance between the two oppositely distributed vertical arms of the second hollow rotating platform mounting box 72.

[0047] In order to facilitate the connection between the articulated platform 81 and the second hollow rotating platform 71, a hollow rotating platform mounting groove 83 is recessed on each of the two opposite side surfaces of the articulated platform 81, which is perpendicular to the side surface of the articulated platform 81. The depth of the recessed hollow rotating platform mounting groove 83 is the same as the distance between the circular rotating platform on the second hollow rotating platform 71 protruding from the second left box 74 and the second right box 75. The circular rotating platform on the second hollow rotating platform 71 can be placed in the hollow rotating platform mounting groove 83.

[0048] The cross-section of the hollow rotating platform mounting groove 83 is an oblong, that is, one end of the hollow rotating platform mounting groove 83 is semicircular and the other end is rectangular, and the inner diameter of the semicircle is the same as the outer diameter of the circular rotating platform on the second hollow rotating platform 71. In addition, one end of the rectangle of the hollow rotating platform mounting groove 83 extends to the end of the articulated platform 81 and is connected to the outside world, so that the articulated platform 81 can be inserted into the "U"-shaped second hollow rotating platform mounting box 72 from the open end of the hollow rotating platform mounting groove 83.

[0049] In order to facilitate the connection between the articulated platform 81 and the second hollow rotating platform 71, a straight limit groove 84 is provided in the hollow rotating platform mounting groove 83 corresponding to the straight mounting bracket 73. The length of the straight limit groove 84 is slightly longer than the length of the straight mounting bracket 73. After matching with the hollow rotating platform mounting groove 83, the straight mounting bracket 73 is also inserted into the straight limit groove 84. In this way, when the second hollow rotating platform 71 rotates, it can drive the articulated platform 81 to rotate.

[0050] In order to prevent the articulated platform 81 and the second hollow rotating platform 71 from falling off unexpectedly, after the second hollow rotating platform 71 is connected to the hollow rotating platform mounting groove 83 on the articulated platform 81, a mounting groove sealing plate 85 that closes the remaining hollow rotating platform mounting grooves 83 is fixed to the articulated platform 81 with screws.

[0051] The mounting groove sealing plate 85 is a "C"-shaped metal plate with a certain thickness. The thickness of the mounting groove sealing plate 85 is the same as the depth of the hollow rotating platform mounting groove 83. The concave arc on the mounting groove sealing plate 85 and the semicircular arc on the hollow rotating platform mounting groove 83 form a complete circle, and the circular rotating platform on the second hollow rotating platform 71 is stuck in this circle.

[0052] In order to facilitate the installation and fixation of the mounting groove sealing plate 85, a C-shaped limit block 86 is protruded on one side surface of the mounting groove sealing plate 85. The two horizontal arms of the C-shaped limit block 86 can be stuck in the I-shaped limit groove 84, and a circular through hole is opened on the side of the C-shaped limit block 86. At the same time, a threaded hole is also opened at the end of the I-shaped mounting frame 73. The C-shaped limit block 86 can be connected to the I-shaped mounting frame 73 by screws, thereby completing the connection between the articulated platform 81 and the second hollow rotating platform 71, so that when the second hollow rotating platform 71 rotates, the articulated platform 81 can rotate accordingly, thereby realizing the rotation of the second robotic arm 12.

[0053] In order to facilitate the connection between the 360° rotating joint 3 and the U-shaped rotating joint 4, a connecting skirt 57 is provided on the side wall of the U-shaped rotating joint 4. The connecting skirts 57 on the 360° rotating joint 3 and the U-shaped rotating joint 4 correspond to each other up and down. The 360° rotating joint 3 and the U-shaped rotating joint 4 can be connected together by screws using the connecting skirt 57.

[0054] like Figure 2 、 9 As shown in Figure 10, in this embodiment, the motion connection mode of the 360° rotating joint 3 is a turntable connection mode, and the motion connection mode of the U-shaped rotating joint 4 is a rotating joint (similar to a hinge) connection mode. In order to achieve different motion effects of the robotic arm, the components of the connection module 2 can be adjusted to achieve switching of different motion modes of the robotic arm. For example, the 360° rotating joint 3 and the U-shaped rotating joint 4 can be connected together, or two 360° rotating joints 3 can be connected together, and two U-shaped rotating joints 4 can be connected together to form a connection module 2. When changing the mode, only the connection module 2 needs to be adjusted, and there is no need to adjust or replace the robotic arm. It is convenient, fast and low cost to use.

[0055] Regarding the inspection and maintenance of the robotic arm in this embodiment: when it is necessary to inspect and maintain the robotic arm connected to the 360° rotating joint 3, the 360° rotating joint 3 can be disassembled by unscrewing the screws on the limit ring 61, and the 360° rotating assembly 5 and the 360° rotating joint mounting plate 6 can be disassembled, and then the corresponding robotic arm can be removed for inspection and maintenance;

[0056] When it is necessary to inspect and maintain the robotic arm connected to the U-shaped rotating joint 4, the screws on the mounting slot sealing plate 85 on the articulated platform 81 can be unscrewed to remove the mounting slot sealing plate 85, and then the U-shaped rotating joint 4 can be disassembled, and the U-shaped rotating seat 8 can be removed from the U-shaped rotating assembly 7, and the corresponding robotic arm can be removed for inspection and maintenance, which is convenient to use.

[0057] The above embodiments are only for illustrating the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A robot arm that is easy to maintain, comprising a robot arm body (1), wherein the robot arm body (1) comprises a first robot arm (11) and a second robot arm (12), characterized in that: The invention also includes a connection module (2) for connecting the first robotic arm (11) and the second robotic arm (12), wherein the connection module (2) is detachably connected to the first robotic arm (11) and the second robotic arm (12), and the connection module (2) includes a 360-degree rotating joint (3) and a U-shaped rotating joint (4), one end of the 360-degree rotating joint (3) and the U-shaped rotating joint (4) are detachably connected, and the other end is respectively connected to the first robotic arm (11) and the second robotic arm (12), the 360-degree rotating joint (3) drives the first robotic arm (11) to rotate freely within a range of 360 degrees, and the U-shaped rotating joint (4) drives the second robotic arm (12) to rotate freely within a range of 180 degrees, and the number and connection angle of the 360-degree rotating joints (3) and the U-shaped rotating joints (4) in the connection module (2) are adjustable.

2. The maintenance-friendly robotic arm according to claim 1, characterized in that: The 360° rotating joint (3) comprises a 360° rotating platform (5) and a 360° rotating joint mounting plate (6), wherein the 360° rotating joint mounting plate (6) is detachably connected to the robot arm, and the 360° rotating joint mounting plate (6) is detachably connected to the 360° rotating platform (5), and the 360° rotating platform (5) drives the 360° rotating joint mounting plate (6) to rotate controllably within 360°.

3. The maintenance-friendly robotic arm according to claim 2, characterized in that: The 360° rotating platform (5) comprises a first hollow rotating platform (51) and a first hollow rotating platform mounting box (52), wherein the first hollow rotating platform (51) is arranged in the first hollow rotating platform mounting box (52), a cross mounting frame (53) is arranged on the first hollow rotating platform (51), and the first hollow rotating platform (51) is detachably connected to the 360° rotating joint mounting plate (6) via the cross mounting frame (53).

4. The maintenance-friendly robotic arm according to claim 2, characterized in that: The 360° rotating joint mounting plate (6) comprises a limiting ring (61) and a cross limiting groove (62), wherein the limiting ring (61) is arranged on the surface of the 360° rotating joint mounting plate (6), and the cross limiting groove (62) is arranged in the limiting ring (61) on the 360° rotating joint mounting plate (6), and the cross limiting groove (62) is matched with the cross mounting frame (53) on the first hollow rotating platform (51).

5. The maintenance-friendly robotic arm according to claim 4, characterized in that: A mounting hole (56) is provided on the limiting ring (61), and the limiting ring (61) is detachably connected to the cross mounting frame (53) through the mounting hole (56), thereby connecting the mechanical arm and the connection module (2).

6. The maintenance-friendly robotic arm according to claim 1, characterized in that: The U-shaped rotating joint (4) comprises a U-shaped rotating assembly (7) and a U-shaped rotating seat (8), wherein the U-shaped rotating seat (8) is detachably connected to the robotic arm, and the U-shaped rotating assembly (7) is detachably connected to the U-shaped rotating seat (8), and the U-shaped rotating assembly (7) drives the U-shaped rotating seat (8) to rotate controllably within a range of 180°.

7. The maintenance-friendly robotic arm according to claim 6, characterized in that: The U-shaped rotating assembly (7) includes a second hollow rotating platform (71) and a second hollow rotating platform mounting box (72). There are two second hollow rotating platforms (71). The two second hollow rotating platforms (71) are arranged opposite to each other in the second hollow rotating platform mounting box (72). A straight mounting frame (73) is provided on the second hollow rotating platform (71). The second hollow rotating platform (71) is detachably connected to the U-shaped rotating seat (8) through the straight mounting frame (73).

8. The maintenance-friendly robotic arm according to claim 6, characterized in that: The U-shaped rotating seat (8) includes an articulated platform (81), and hollow rotating platform mounting grooves (83) are provided on both sides of the articulated platform (81). The second hollow rotating platform (71) in the U-shaped rotating assembly (7) is arranged in the hollow rotating platform mounting groove (83). A straight limit groove (84) is provided in the hollow rotating platform mounting groove (83) and cooperates with the straight mounting frame (73) on the second hollow rotating platform (71). A mounting groove sealing plate (85) for fixing the U-shaped rotating seat (8) and the U-shaped rotating assembly (7) is also provided on the articulated platform (81). The U-shaped rotating seat (8) and the U-shaped rotating assembly (7) can be quickly disassembled and assembled under the action of the mounting groove sealing plate (85).

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