Robot damping base

Abstract

The utility model relates to the field of robot bases, and discloses a robot damping base which comprises a first damping assembly, a second damping assembly and a third damping assembly, and the first damping assembly comprises a mounting base and a first damping spring arranged in the mounting base; the second damping assembly comprises a fixing base and a damping interlayer installed on the outer side of the fixing base. The third damping assembly comprises a first connecting base and a buffering piece connected to the first connecting base. The buffering piece comprises a connecting sleeve and a second damping spring installed in the connecting sleeve. The first connecting base and the buffer piece are fixedly connected to the interior of the mounting base and the lower end of the fixing base respectively, the connecting sleeve is rotationally connected with the first connecting base, and the connecting rod is rotationally connected with the second connecting base; the problems that in the prior art, the stability of the robot is affected in the damping process, and even the working state of the robot is affected due to the resonance phenomenon in high-frequency vibration are solved.

Description

Technical Field

[0001] This utility model relates to the field of robot bases, and more particularly to a robot shock-absorbing base. Background Technology

[0002] With the rapid development of industrial automation and intelligent services, industrial robots, service robots, and special-purpose robots face the need for vibration control under complex working conditions. During high-speed movement, sudden load changes, or uneven ground, vibrations generated by the robot body not only affect motion accuracy and repeatability, but also lead to sensor data distortion and fatigue damage to mechanical components; therefore, vibration reduction measures for robots are particularly important.

[0003] As disclosed in patent application CN213598885U, an industrial robot vibration damping base includes an outer frame. A track is provided on the upper bottom surface of the outer frame, and a sliding device is provided on the upper surface of the track. The sliding device includes a bracket, a first roller, and a lever shaft. A horizontal plate is fixedly installed on the upper surface of the sliding device. Buffer devices are provided on the left and right sides of the horizontal plate. The buffer devices include a movable rod, a fixed block, a second spring, and a hollow column. A vibration damping device is provided on the upper surface of the horizontal plate, and the vibration damping device includes a second roller, a shaft, a connecting rod, a fixed shaft, and a third spring. This industrial robot vibration damping base, through its sliding device, buffer device, and vibration damping device, can dampen vibrations not only in the longitudinal direction but also in the lateral direction. Its placement on a tray facilitates robot installation, offering advantages such as multi-directional vibration damping and ease of use. However, while this utility model possesses the advantage of multi-directional vibration damping, it can also affect the robot's working stability, potentially leading to resonance in high-frequency vibrations, thus impacting the robot's stability. Utility Model Content

[0004] The purpose of this utility model is to provide a robot shock-absorbing base to solve the problem in the prior art that the stability of the robot is affected during the shock absorption process, and even resonance occurs in high-frequency vibration, thereby affecting the working state of the robot.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a robot shock-absorbing base, comprising a first shock-absorbing component, a second shock-absorbing component and a third shock-absorbing component, wherein the first shock-absorbing component comprises a mounting base and a first shock-absorbing spring disposed inside the mounting base;

[0006] The second damping component includes a fixed base and a damping interlayer installed on the outside of the fixed base, and a mating plate is provided on the outside of the damping interlayer;

[0007] The third shock absorption assembly includes a first connecting seat and a buffer connected to the first connecting seat, and the other end of the buffer is connected to a second connecting seat.

[0008] Preferably, the first damping springs are evenly distributed at equal angles inside the mounting base, and the two ends of the first damping springs are fixedly connected to the inside of the mounting base and one side of the mating plate, respectively.

[0009] Preferably, the fixing seat slides within the mating plate, the shock-absorbing interlayer is installed between the fixing seat and the mating plate, and the mating plate slides within the mounting seat.

[0010] Preferably, the buffer includes a connecting sleeve and a second shock-absorbing spring installed inside the connecting sleeve, and a connecting rod is connected to one side of the connecting sleeve.

[0011] Preferably, the first connecting seat and the buffer are fixedly connected inside the mounting seat and at the lower end of the fixed seat, respectively, and the connecting sleeve is rotatably connected to the first connecting seat and the connecting rod is rotatably connected to the second connecting seat.

[0012] Preferably, the connecting rod slides inside the connecting sleeve, and the two ends of the second shock-absorbing spring are fixedly connected to the connecting sleeve and the connecting rod, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a first damping spring inside the mounting base, the connection between the first damping spring and the mounting base and the mating plate is used to perform axial damping of the fixed base. A damping interlayer is installed between the fixed base and the mating plate to perform radial damping of the fixed base. At the same time, the damping effect is better when combined with the setting of a third damping component. The damping effect of the device can be guaranteed by setting three sets of damping components. At the same time, the stiffness of the first damping spring, the damping interlayer and the second damping spring are different. Through the cooperation of the three, the natural frequency that may cause resonance in the device is discretized, which can effectively prevent the occurrence of high-frequency resonance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the second shock-absorbing component in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the third shock-absorbing component in this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the buffer component in this utility model.

[0018] In the diagram: 10, First damping component; 11, Mounting base; 12, First damping spring; 20, Second damping component; 21, Fixing base; 22, Damping interlayer; 23, Mating plate; 30, Third damping component; 31, First connecting base; 32, Buffer component; 321, Connecting sleeve; 322, Second damping spring; 323, Connecting rod; 33, Second connecting base. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a robot shock-absorbing base, including a first shock-absorbing component 10, a second shock-absorbing component 20 and a third shock-absorbing component 30. The first shock-absorbing component 10 includes a mounting base 11 and a first shock-absorbing spring 12 disposed inside the mounting base 11; the second shock-absorbing component 20 includes a fixed base 21 and a shock-absorbing interlayer 22 installed on the outside of the fixed base 21, and a mating plate 23 is provided on the outside of the shock-absorbing interlayer 22.

[0021] The first damping spring 12 is fixedly connected between the mounting base 11 and the mating plate 23. The first damping spring 12 is evenly distributed at equal angles on the mounting base 11. The mating plate 23 is provided with a ring plate, which can perform a certain limiting movement inside the mounting base 11. The fixed base 21 slides up and down inside the mounting base 11, and there is a certain gap between the two to facilitate the radial movement of the fixed base 21.

[0022] A slot is provided on the fixed base 21, and a slider is provided inside the mating plate 23. The slider and the slot correspond to each other, so that the slider on the mating plate 23 can move in a limited position in the slot on the fixed base 21. At the same time, the shock-absorbing interlayer 22 is fixedly installed between the fixed base 21 and the mating plate 23 to play the role of radial shock absorption.

[0023] The third shock absorption assembly 30 includes a first connecting seat 31 and a buffer member 32 connected to the first connecting seat 31, and the other end of the buffer member 32 is connected to a second connecting seat 33; the buffer member 32 includes a connecting sleeve 321 and a second shock absorption spring 322 installed inside the connecting sleeve 321, and a connecting rod 323 is connected to one side of the connecting sleeve 321.

[0024] The first connecting seat 31 and the buffer 32 are fixedly connected to the inside of the mounting seat 11 and the lower end of the fixed seat 21, respectively. The connecting sleeve 321 is connected to the first connecting seat 31 and the connecting rod 323 is connected to the second connecting seat 33 by rotation. The third shock-absorbing component 30 is evenly distributed at the lower end of the fixed seat 21. The connecting rod 323 slides inside the connecting sleeve 321. The two ends of the second shock-absorbing spring 322 are fixedly connected to the connecting sleeve 321 and the connecting rod 323, respectively.

[0025] The first damping spring 12, the damping interlayer 22, and the second damping spring 322 have different stiffnesses. By combining the three according to appropriate stiffness requirements, the natural frequencies that may cause resonance in the device can be discretized, thereby preventing high-frequency resonance from occurring.

[0026] The working principle and usage of this utility model are as follows: A first damping spring 12 is installed inside the mounting base 11. Utilizing the connection between the first damping spring 12 and the mounting base 11 and the mating plate 23, and the uniform distribution of the first damping spring 12 within the mounting base 11, preliminary axial damping of the fixed base 21 can be achieved. Simultaneously, a damping interlayer 22 is installed between the fixed base 21 and the mating plate 23, allowing for radial damping of the fixed base 21. Furthermore, the third damping component 30, along with the connecting rod 323 within the connecting sleeve 321, further enhances the damping effect. The sliding of the part, combined with the setting of the second damping spring 322, allows for synchronous axial and radial damping when the fixed seat 21 moves. This, along with the setting of the first damping spring 12 and the damping interlayer 22, enhances the damping effect. The setting of three sets of damping components ensures the damping effect of the device. At the same time, the stiffness of the first damping spring 12, the damping interlayer 22, and the second damping spring 322 are different. Through the cooperation of the three, the natural frequency that may cause resonance in the device is discretized, which can effectively prevent the occurrence of high-frequency resonance.

[0027] 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.

Claims

1. A robot shock-absorbing base, comprising a first shock-absorbing component (10), a second shock-absorbing component (20), and a third shock-absorbing component (30), characterized in that: The first damping assembly (10) includes a mounting base (11) and a first damping spring (12) disposed inside the mounting base (11); The second shock absorber assembly (20) includes a fixed base (21) and a shock absorber interlayer (22) installed on the outside of the fixed base (21), and a mating plate (23) is provided on the outside of the shock absorber interlayer (22); The third shock absorber assembly (30) includes a first connecting seat (31) and a buffer (32) connected to the first connecting seat (31), and the other end of the buffer (32) is connected to a second connecting seat (33).

2. The robot shock-absorbing base according to claim 1, characterized in that: The first damping spring (12) is evenly distributed at equal angles inside the mounting base (11), and the two ends of the first damping spring (12) are fixedly connected to the inside of the mounting base (11) and one side of the mating plate (23), respectively.

3. The robot shock-absorbing base according to claim 2, characterized in that: The fixed seat (21) slides within the mating plate (23) to limit movement. The shock-absorbing interlayer (22) is installed between the fixed seat (21) and the mating plate (23). The mating plate (23) slides within the mounting seat (11).

4. A robot shock-absorbing base according to claim 3, characterized in that: The buffer (32) includes a connecting sleeve (321) and a second shock-absorbing spring (322) installed inside the connecting sleeve (321). A connecting rod (323) is connected to one side of the connecting sleeve (321).

5. A robot shock-absorbing base according to claim 4, characterized in that: The first connecting seat (31) and the buffer (32) are respectively fixedly connected inside the mounting seat (11) and at the lower end of the fixed seat (21). The connecting sleeve (321) and the first connecting seat (31) and the connecting rod (323) and the second connecting seat (33) are connected by rotation.

6. A robot shock-absorbing base according to claim 5, characterized in that: The connecting rod (323) slides inside the connecting sleeve (321), and the two ends of the second shock-absorbing spring (322) are fixedly connected to the connecting sleeve (321) and the connecting rod (323) respectively.

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