Electrical manipulator positioning base

Abstract

The utility model discloses an electrical mechanical arm positioning base which comprises a supporting body and further comprises an inner protection pipe, a connecting plate and an expansion assembly, the inner protection pipe is fixedly connected to the interior of the supporting body through the connecting plate, and the connecting plate is fixedly connected between the inner wall of the supporting body and the outer wall of the inner protection pipe. The expansion assemblies are fixedly connected to the outer side walls of the two ends of the supporting body, and a supporting cavity is formed between the inner wall of the supporting body and the outer wall of the inner protection pipe through connected connecting plates. The utility model belongs to the technical field of electrical automation, and particularly relates to an electrical manipulator positioning base for rigid multi-degree-of-freedom support of an electrical manipulator, which aims at stably supporting the electrical manipulator by the positioning base, improving the rigidity of the base, reducing resonance and improving the motion state.

Description

Technical Field

[0001] This utility model belongs to the field of electrical automation technology, and in particular relates to a positioning base for an electrical robotic arm. Background Technology

[0002] The positioning base of the electric robot is one of its core components. It needs to provide stable support in multiple degrees of freedom. Its mechanical properties directly affect the robot's accuracy and stability, as well as its motion accuracy, stability, and load capacity.

[0003] Existing positioning bases for electric manipulators lack sufficient stiffness under multi-axis load coupling. For example, stiffness design in a single axis direction often sacrifices the stiffness of other degrees of freedom, resulting in coupled deformation under combined loads and affecting the positioning accuracy of the end effector. The torsional stiffness is weak, and the support of the rotational degree of freedom mainly depends on the geometry of the base cross section. When resisting torque, it is prone to shear deformation, which is especially significant in the frequent start and stop of high dynamic motion. Utility Model Content

[0004] The technical problem to be solved by this utility model is a rigid multi-degree-of-freedom support for an electric manipulator that provides stable support for the positioning base, improves the rigidity of the base, reduces resonance, and improves the motion state.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electric manipulator positioning base, including a support body, an inner protective tube, a connecting plate, and an expansion component. The inner protective tube is fixedly connected to the inside of the support body through the connecting plate. The connecting plate is fixedly connected between the inner wall of the support body and the outer wall of the inner protective tube. The expansion component is fixedly connected to the outer walls of both ends of the support body. The inner wall of the support body and the outer wall of the inner protective tube form a support cavity through the connecting plate.

[0006] Furthermore, the end face of the support body is a regular polygon, and the support body is spirally arranged along the axial direction. One end of the connecting plate is located at the bend in the inner wall of the support body and matches the shape of the support body.

[0007] Furthermore, the expansion component includes an expansion plate and a bracing plate. The expansion plate is fixedly connected to the outer walls of both ends of the support body and is circular in shape. The bracing plate is fixedly connected between the side wall of the support body and the bottom wall of the expansion plate and is arranged in a ring with uniform intervals around the inner protective tube.

[0008] Furthermore, the inclined brace is perpendicular to the outer plane wall of the supporting body and is located between the connected plates.

[0009] Furthermore, the connecting plate has connecting holes at both its upper and lower ends, and the connecting holes are arranged radially along the inner protective tube.

[0010] Furthermore, the expansion plate has positioning holes inside, which are arranged in a ring at uniform intervals and correspond to the positions of the connecting plate.

[0011] The beneficial effects of this utility model after adopting the above structure are as follows: For the stable support of the positioning base for the electric robot, the support body increases the installation area with the ground and the robot respectively through the expansion components at the upper and lower ends. The support body adopts a lightweight hollow design, and a support cavity is formed between the connecting plate and the inner protective tube, which improves the axial support force of the support body. The connecting plate is spirally set synchronously with the support body. The continuous curved surface of the spiral disperses the concentrated load into tangential force distributed along the spiral line, reducing the risk of local deformation. The geometric complexity of the spiral structure can disrupt the vibration wave transmission path, avoid overlap with the robot's motion frequency, and reduce the risk of resonance. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] Figure 1 This is a schematic diagram of the overall structure of an electrical manipulator positioning base proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom structure of an electrical manipulator positioning base proposed in this utility model;

[0015] Figure 3 This is a half-sectional view of a positioning base for an electric robotic arm proposed in this utility model;

[0016] Figure 4 This is a top view of the internal structure of an electrical manipulator positioning base proposed in this utility model.

[0017] In the attached diagram: 1. Support body, 2. Inner protective tube, 3. Connecting plate, 4. Expansion assembly, 5. Support cavity, 6. Expansion plate, 7. Diagonal brace plate, 8. Connecting hole, 9. Positioning hole. Detailed Implementation

[0018] like Figure 1-4As shown, an electro-mechanical manipulator positioning base includes a support body 1, an inner protective tube 2, a connecting plate 3, and an expansion assembly 4. The inner protective tube 2 is fixedly connected to the inside of the support body 1 via the connecting plate 3. The connecting plate 3 is fixedly connected between the inner wall of the support body 1 and the outer wall of the inner protective tube 2. The expansion assembly 4 is fixedly connected to the outer walls of both ends of the support body 1. A support cavity 5 is formed between the inner wall of the support body 1 and the outer wall of the inner protective tube 2 via the connecting plate 3. The end face of the support body 1 is a regular polygon, and the support body 1 is spirally arranged along the axial direction. One end of the connecting plate 3 is located at the bend in the inner wall of the supporting body 1 and matches the shape of the supporting body 1. The upper and lower ends of the connecting plate 3 have connecting holes 8, which are arranged radially along the inner protective tube 2. The supporting body 1 is vertically installed on the ground and connected to the electric robot through the extension components 4 at the upper and lower ends, providing stable support for the electric robot. The connecting plate 3 is simultaneously connected to the connection point of the inner wall of the supporting body 1 and fixedly connected to the inner protective tube 2 to form a supporting cavity 5, which improves the supporting strength of the supporting body 1 and realizes the lightweight support of the positioning base.

[0019] like Figure 1 and Figure 3 As shown, in order to achieve a stable connection between the electric manipulator and the ground, the extension component 4 includes an extension plate 6 and a bracing plate 7. The extension plate 6 is fixedly connected to the outer walls of both ends of the support body 1. The extension plate 6 is circular. The bracing plate 7 is fixedly connected between the side wall of the support body 1 and the bottom wall of the extension plate 6, and is arranged in a ring with uniform intervals around the inner protective tube 2. The bracing plate 7 is perpendicular to the outer wall of the plane of the support body 1 and is located between the connected connecting plates 3. The extension plate 6 has positioning holes 9 inside, which are arranged in a ring with uniform intervals. The positioning holes 9 correspond to the positions of the connecting plates 3. The bottom extension plate 6 is in contact with the ground and is bolted through the positioning holes 9 on the outer circumference side of the end to fix the support body 1. The upper extension plate 6 carries the electric manipulator and is bolted through the internal positioning holes 9 and connecting holes 8.

[0020] In actual use, the operator places the device on the ground, so that the bottom wall of the bottom extension plate 6 is in contact with the ground, and uses the positioning hole 9 on the outer circumference side of its end to connect the bolts to fix the support body 1.

[0021] When connecting the electric robot, the upper extension plate 6 of the support body 1 is used for support, and the bottom of the electric robot is bolted to the connection holes 8 on the connection plate 3, so that the electric robot is connected to the support body 1, and then connected to the positioning holes 9 of the upper extension plate 6, which increases the connection stability and effectively supports the electric robot.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A positioning base for an electric robotic arm, comprising a support body (1), characterized in that: It also includes an inner protective tube (2), a connecting plate (3) and an expansion component (4). The inner protective tube (2) is fixedly connected to the inside of the support body (1) through the connecting plate (3). The connecting plate (3) is fixedly connected between the inner wall of the support body (1) and the outer wall of the inner protective tube (2). The expansion component (4) is fixedly connected to the outer walls of both ends of the support body (1). The inner wall of the support body (1) and the outer wall of the inner protective tube (2) are connected to form a support cavity (5) through the connecting plate (3).

2. The positioning base for an electric robotic arm according to claim 1, characterized in that: The end face of the support body (1) is a regular polygon and the support body (1) is spirally arranged along the axial direction. One end of the connecting plate (3) is located at the bend of the inner wall of the support body (1) and matches the shape of the support body (1).

3. The positioning base for an electric robotic arm according to claim 2, characterized in that: The expansion component (4) includes an expansion plate (6) and a bracing plate (7). The expansion plate (6) is fixedly connected to the outer walls of both ends of the support body (1). The expansion plate (6) is circular. The bracing plate (7) is fixedly connected between the side wall of the support body (1) and the bottom wall of the expansion plate (6), and is arranged in a ring with the inner protective tube (2) as the center.

4. The positioning base for an electric robotic arm according to claim 3, characterized in that: The diagonal bracing plate (7) is perpendicular to the outer wall of the supporting body (1) and is located between the connected connecting plates (3).

5. The positioning base for an electric robotic arm according to claim 4, characterized in that: The connecting plate (3) has connecting holes (8) at both the upper and lower ends, and the connecting holes (8) are arranged radially along the inner protective tube (2).

6. The positioning base for an electric robotic arm according to claim 5, characterized in that: The expansion plate (6) has positioning holes (9) inside. The positioning holes (9) are arranged in a ring at uniform intervals and correspond to the position of the connecting plate (3).

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