A robot base anti-collision mechanism

Abstract

The utility model discloses a robot base anti -collision mechanism, including the supporting plate still includes the inside guard frame, the outer guard frame and the support buffer mechanism, the inside guard frame fixed connection in the outer side wall of supporting plate, the outer guard frame is fixedly connected in the outer wall of inside guard frame through the support buffer mechanism, the support buffer mechanism is fixedly connected between the inside guard frame and the outer guard frame, and the buffer cavity is formed between the inside guard frame and the outer guard frame. The utility model belongs to intelligent logistics carrier vehicle technical field, and specifically is a kind of all -round passive protection for AGV transport robot, and the reverse elastic support after weakening collision, keep the robot base anti -collision mechanism of the central stability of AGV transport robot inside the protective structure.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent logistics handling vehicle technology, and in particular relates to a robot base anti-collision mechanism. Background Technology

[0002] AGV robots, short for "Automatic Guided Vehicles" or "Automatic Guided Transport Vehicles," are intelligent devices equipped with electromagnetic or optical automatic navigation devices that can travel along a prescribed path and complete transport tasks. They are of great significance to improving the level of industrial modernization.

[0003] AGV robots can be divided into active protection and passive protection. Active protection achieves collision avoidance through multiple sensors and active obstacle avoidance algorithms. However, in terms of passive protection, existing AGV robots mainly target independent protection in the front, rear, or sides, and cannot achieve all-round protection. Side impacts affect the stability of the drive wheels. After an impact, the external anti-collision structure is buffered by springs, but the supporting elastic force generated by the spring reset is large, which increases the displacement after the collision and cannot stably collapse and absorb energy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide all-round passive protection for AGV transport robots, reduce the reverse elastic support after collision, and maintain the central stability of AGV transport robots inside the protective structure.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a robot base anti-collision mechanism, including a support plate, an inner protective frame, an outer protective frame, and a support and buffer mechanism. The inner protective frame is fixedly connected to the outer wall of the support plate, and the outer protective frame is fixedly connected to the outer wall of the inner protective frame through the support and buffer mechanism. The support and buffer mechanism is fixedly connected between the inner protective frame and the outer protective frame, and a buffer cavity is formed between the inner protective frame and the outer protective frame.

[0006] Furthermore, the support and buffer mechanism includes a support airbag and a brittle support assembly. The support airbag is fixedly connected between the inner and outer protective frames, and the brittle support assembly is fixedly connected between the inner and outer protective frames and is arranged in an alternating pattern with the support airbag.

[0007] Furthermore, the brittle support assembly includes a support rod and an airbag ring. The support rod is fixedly connected between the inner and outer protective frames, and the airbag ring is sleeved on the outer side wall of the support rod. The support rod is made of polyoxymethylene material.

[0008] Furthermore, a connecting tube connects the airbag ring and the supporting airbag, and rubber valves are provided at both ends of the connecting tube.

[0009] Furthermore, the inner and outer protective frames are respectively arranged in the form of regular polygons.

[0010] Furthermore, the pallet has a notch on the outer circumference of its end face, a through hole at the center of the pallet, and anti-collision blocks at the corners of the outer wall of the outer protective frame.

[0011] With the above structure, the beneficial effects of this utility model are as follows: For all-round passive protection of AGV transport robots, bolts are inserted through through holes to install the pallet at the bottom of the AGV trolley. The drive wheel extends downward to contact the ground through the notch. The support and buffer mechanism is connected between the inner and outer protective frames to form a double-layer protection structure and a buffer cavity. The buffer cavity increases the amount of collision crumple and achieves different protection effects according to different collision intensities. At the same time, after the support and buffer mechanism is reset, it can make the pallet located at the center of the outer protective frame. 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 a robot base anti-collision mechanism proposed in this utility model;

[0014] Figure 2 This is a top view of the internal structure of a robot base anti-collision mechanism proposed in this utility model;

[0015] Figure 3 This is a half-sectional view of a robot base anti-collision mechanism proposed in this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of part A.

[0017] In the attached diagram: 1. Support plate, 2. Inner protective frame, 3. Outer protective frame, 4. Support buffer mechanism, 5. Buffer cavity, 6. Support airbag, 7. Brittle support assembly, 8. Support rod, 9. Airbag ring, 10. Connecting tube, 11. Rubber valve, 12. Notch, 13. Through hole, 14. Anti-collision block. Detailed Implementation

[0018] like Figure 1-4As shown, a robot base anti-collision mechanism includes a support plate 1, an inner protective frame 2, an outer protective frame 3, and a support and buffer mechanism 4. The inner protective frame 2 is fixedly connected to the outer wall of the support plate 1, and the outer protective frame 3 is fixedly connected to the outer wall of the inner protective frame 2 via the support and buffer mechanism 4. The support and buffer mechanism 4 is fixedly connected between the inner protective frame 2 and the outer protective frame 3, forming a buffer cavity 5 between the inner protective frame 2 and the outer protective frame 3. The inner protective frame 2 and the outer protective frame 3 are respectively arranged in the form of regular polygons to increase the planar contact of the collision surfaces in all directions. A notch 12 is opened on the outer circumference side of the end face of the support plate 1. A through hole 13 is opened at the center of the inner frame 2 and an anti-collision block 14 is provided at the corner of the outer wall of the outer frame 3. A bolt is inserted into the through hole 13 to install the pallet 1 at the bottom of the AGV. The drive wheel extends downward through the notch 12 to contact the ground and move. The anti-collision block 14 is located outside the outer frame 3 to protect against minor bumps to the outer frame 3. The support and buffer mechanism 4 is connected between the inner frame 2 and the outer frame 3 and is used for buffer support of the buffer cavity 5. It is suitable for buffering and relieving impacts of different intensities. At the same time, after buffering and resetting, the pallet 1 is kept at the center of the outer frame.

[0019] like Figure 2-4 As shown, in order to support the outer protective frame 3 and provide impact buffering for different intensities, enabling the outer protective frame 3 to buffer and dissipate force in different directions, the support and buffering mechanism 4 includes a support airbag 6 and a brittle support component 7. The support airbag 6 is fixedly connected between the inner protective frame 2 and the outer protective frame 3, and the brittle support component 7 is fixedly connected between the inner protective frame 2 and the outer protective frame 3, and is arranged in an alternating pattern with the support airbag 6. The brittle support component 7 includes a support rod 8 and an airbag ring 9. The support rod 8 is fixedly connected between the inner protective frame 2 and the outer protective frame 3, and the airbag ring 9 is sleeved on the outer side wall of the support rod 8. The support rod 8 is made of polyoxymethylene material. A connecting pipe 10 connects the airbag ring 9 and the supporting airbag 6. Rubber valves 11 are provided at both ends of the connecting pipe 10. The outer protective frame 3 and the inner protective frame 2 are rigidly connected by a support rod 8. When the outer protective frame 3 is subjected to a normal impact, the support rod 8 keeps the position of the outer protective frame 3 from shifting. If the impact intensity is large, the support rod 8 will automatically break and the force will be buffered and discharged through the externally connected airbag ring 9. At the same time, the gas in the airbag ring 9 is transported to the supporting airbag 6 through the connecting pipe 10. The rubber valves 11 reduce the impact of the airflow and evenly disperse the airflow through multiple supporting airbags 6, providing stable support in the impact direction and shortening the collapse stroke.

[0020] In actual use, the operator installs the pallet 1 to the bottom of the AGV trolley with bolts. During the journey, the regular polygonal surface of the outer guard frame 3 increases the planar contact during collisions in all directions, and the external anti-collision block 14 of the outer guard frame 3 is used for slight collision buffering.

[0021] When the impact intensity is further increased, the outer protective frame 3 and the inner protective frame 2 are rigidly connected by the support rod 8. When the outer protective frame 3 is subjected to a normal impact, the support rod 8 keeps the position of the outer protective frame 3 from shifting.

[0022] If the impact force increases further, the support rod 8 will automatically break. The airbag ring 9 connected to the outside of the support rod 8 will buffer and release the force, supporting the inner wall of the moving outer protective frame 3. At the same time, the airbag ring 9 will be compressed, and the internal gas will be transported to the support airbag 6 through the connecting pipe 10. The rubber valve 11 will slow down the airflow impact in the connecting pipe 10 and evenly distribute the airflow to multiple support airbags 6, providing stable buffer support in the impact direction, shortening the collapse stroke, and increasing the protective effect. After the impact, the air pressure in the support airbag 6 and the airbag ring 9 will return to stability, and the support plate 1 can still be kept in the center of the outer protective frame 3.

[0023] 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 robot base anti-collision mechanism, comprising a support plate (1), characterized in that: It also includes an inner protective frame (2), an outer protective frame (3) and a support and buffer mechanism (4). The inner protective frame (2) is fixedly connected to the outer wall of the tray (1). The outer protective frame (3) is fixedly connected to the outer wall of the inner protective frame (2) through the support and buffer mechanism (4). The support and buffer mechanism (4) is fixedly connected between the inner protective frame (2) and the outer protective frame (3). A buffer cavity (5) is formed between the inner protective frame (2) and the outer protective frame (3). The support and buffer mechanism (4) includes a support airbag (6) and a brittle support component (7). The support airbag (6) is fixedly connected between the inner protective frame (2) and the outer protective frame (3). The brittle support component (7) is fixedly connected between the inner protective frame (2) and the outer protective frame (3) and is arranged in an alternating manner with the support airbag (6).

2. The robot base anti-collision mechanism according to claim 1, characterized in that: The brittle support assembly (7) includes a support rod (8) and an airbag ring (9). The support rod (8) is fixedly connected between the inner protective frame (2) and the outer protective frame (3). The airbag ring (9) is sleeved on the outer side wall of the support rod (8). The support rod (8) is a support rod (8) made of polyoxymethylene material.

3. The robot base anti-collision mechanism according to claim 2, characterized in that: A connecting tube (10) is connected between the airbag ring (9) and the supporting airbag (6), and rubber valves (11) are provided at both ends of the connecting tube (10).

4. A robot base anti-collision mechanism according to any one of claims 1-3, characterized in that: The inner protective frame (2) and the outer protective frame (3) are respectively arranged in the form of regular polygons.

5. The robot base anti-collision mechanism according to claim 1, characterized in that: The pallet (1) has a notch (12) on the outer circumference of its end face, a through hole (13) at the center of the pallet (1), and a collision block (14) at the corner of the outer wall of the outer protective frame (3).

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