阅读说明：本技术 一种应用于软体机器人的真空吸附装置 (Vacuum adsorption device applied to soft robot ) 是由 滕燕 孙佳辉 李小宁 于 2019-08-22 设计创作，主要内容包括：本发明公开了一种应用于软体机器人的真空吸附装置,包括硅胶弹性主体、硅胶密封圈和硬质滑片。硅胶弹性主体上部与软体机器人连为一体,所述真空吸附装置作为软体机器人的行走足,硅胶弹性主体自底面向上开有一个呈渐缩形喇叭状的吸附腔。硅胶弹性主体底面围绕硅胶密封圈开有一圈环形的二阶阶梯状凹槽,当吸盘吸附于地面时,硅胶密封圈向上翻折入二阶阶梯状凹槽内。本发明与软体机器人的驱动装置固联在一起,通过吸附装置与地面之间产生的吸附力,有效解决了机器人在爬行过程中的“后溜”问题,实现了机器人“爬坡”的技术要求。(The invention discloses a vacuum adsorption device applied to a soft robot, which comprises a silica gel elastic main body, a silica gel sealing ring and a hard slip sheet. The upper part of the silica gel elastic main body is connected with the soft robot into a whole, the vacuum adsorption device is used as a walking foot of the soft robot, and the silica gel elastic main body is upwards provided with an adsorption cavity in a tapered horn shape from the bottom surface. The bottom surface of the silica gel elastic main body is provided with a circle of annular second-order stepped grooves around the silica gel sealing ring, and when the sucker is adsorbed on the ground, the silica gel sealing ring is upwards folded into the second-order stepped grooves. The invention is fixedly connected with the driving device of the soft robot, effectively solves the problem of backward slipping of the robot in the creeping process by the adsorption force generated between the adsorption device and the ground, and realizes the technical requirement of the robot on climbing.)

1. A vacuum adsorption device applied to a soft robot comprises

The upper part of the silica gel elastic main body (2) is connected with the soft robot (3) into a whole and is used as a walking foot of the soft robot (3);

the method is characterized in that:

the silica gel elastic main body (2) is provided with an adsorption cavity (5) in a tapered horn shape from the bottom surface upwards, and a circle of silica gel sealing ring (7) is arranged on the bottom surface of the adsorption cavity (5) and is used as a sucker together;

the flexible robot is characterized by further comprising a hard sliding sheet (1), wherein the hard sliding sheet (1) wraps the bottom edge of the silica gel elastic main body (2) and is positioned in the advancing direction of the flexible robot (3), so that the bottom edge of the silica gel elastic main body (2) is effectively prevented from flanging;

the side wall of the silica gel elastic main body (2) is provided with an air charging and discharging port (4), which is communicated with the adsorption cavity (5) and generates vacuum in the adsorption cavity (5) after being connected with a vacuum generator, thereby realizing the adsorption effect.

2. The vacuum adsorption device applied to the soft robot as claimed in claim 1, wherein: the bottom surface of the silica gel elastic main body (2) is provided with a circle of annular second-order stepped grooves (6) around the silica gel sealing ring (7), and when the sucker is adsorbed on the ground, the silica gel sealing ring (7) is turned upwards and folded into the second-order stepped grooves (6).

3. The vacuum adsorption device applied to the soft robot as claimed in claim 1 or 2, wherein: silica gel sealing washer (7) all are asymmetric structure with ring echelonment recess (6), and with the advancing direction homonymy for first half cycle, first half cycle silica gel sealing washer (7) flush with silica gel elasticity main part (2) bottom, and later half cycle silica gel sealing washer (7) downwardly extending silica gel elasticity main part (2) bottom.

4. The vacuum adsorption device applied to the soft robot as claimed in claim 1, wherein: the hard slip sheet (1) comprises an L-shaped separation blade (1-1), a plurality of clamping teeth (1-3) and a card (1-2), wherein the inner wall surface of the L-shaped separation blade (1-1) is provided with the clamping teeth (1-3), the bottom of the L-shaped separation blade (1-1) is upwards provided with the grid-shaped card (1-2), the card (1-2) is fixedly connected with the clamping teeth (1-3), the L-shaped separation blade (1-1) is arranged on the front side wall of the silica gel elastic main body (2) and wraps the bottom edge of the silica gel elastic main body (2), and the L-shaped separation blade is located in the advancing direction of the soft robot (3) and effectively prevents the bottom edge of the silica gel elastic main body (2.

Technical Field

The invention relates to the field of soft robots, in particular to a vacuum adsorption device applied to a soft robot.

Background

Most of traditional robots are rigid robots, rigid modules of the robots are connected through various kinematic pairs, and the robots are widely applied due to the advantages of accurate control, stable motion and the like. But the defects are also obvious, the movement form is too complex, autonomous movement cannot be carried out under the complex ground condition and the narrow space smaller than the size of the user, and the environment adaptability is poor. For example, in military reconnaissance, in order to ensure concealment of reconnaissance, a reconnaissance robot needs to have the capability of drilling a small-sized and complex-shaped channel such as a wall gap. In addition, in the rescue process of natural disasters such as mine disasters, earthquakes and the like, the robot is required to be capable of penetrating into the ruins for detection. With the development of science and technology, software robots have come to be used to meet these needs.

The soft robot driving mode mainly comprises cable length-variable underactuation, fluid-variable pressure actuation and intelligent material deformation-based actuation.

Although the existing soft robot has various movement modes, the existing soft robot lacks the adsorption capacity to the ground, the phenomenon of backward slip is easily generated in the movement process, the climbing angle is lower, the sealing performance of a simple circular adsorption air cavity is poorer, the required vacuum degree is overhigh, the resource waste is caused, and the environment adaptability of the soft robot is influenced.

Disclosure of Invention

The invention aims to provide a vacuum adsorption device applied to a soft robot so as to realize the stable adsorption of the soft robot to the ground and the requirements of the robot on climbing motion.

The technical solution for realizing the purpose of the invention is as follows: a vacuum adsorption device applied to a soft robot comprises a silica gel elastic main body, a silica gel sealing ring and a hard slip sheet. Silica gel elastic main part upper portion and software robot are even as an organic whole, vacuum adsorption device is sufficient as the walking of software robot, and silica gel elastic main part upwards opens from the bottom surface has one to be the absorption chamber of convergent shape loudspeaker form, is equipped with round silica gel sealing washer at absorption chamber bottom surface and regards as the sucking disc jointly. The bottom surface of the silica gel elastic main body is provided with a circle of annular second-order stepped grooves around the silica gel sealing ring, and when the sucker is adsorbed on the ground, the silica gel sealing ring is upwards folded into the second-order stepped grooves.

Compared with the prior art, the invention has the remarkable advantages that:

(1) according to the invention, the periphery of the bottom of the truncated cone-shaped adsorption cavity extends to form a circle of silica gel sealing ring, and due to the elastic characteristic of silica gel, when adsorption action is generated, the sealing ring is extruded and is folded outwards in the annular groove, so that the contact area between the adsorption device and the ground is effectively increased, and the sealing property of the adsorption device is improved.

(2) The silica gel sealing ring adopts an asymmetric structure, the first half-cycle sealing ring is hidden in the elastic body, so that the sealing ring cannot be curled inwards due to friction with the ground in the movement process, and the sealing ring extending out of the rear half cycle can ensure the air tightness of the adsorption mechanism.

(3) The stepped groove of the ring in the invention also adopts an asymmetric structure, so that the folded sealing ring can be better accommodated, and the depth of the groove is slightly less than the thickness of the sealing ring, so that the sealing ring can be ensured to be contacted with the ground when adsorption is generated.

Drawings

FIG. 1 is a schematic view of the overall structure of the vacuum adsorption apparatus based on the pneumatic soft body technology.

Fig. 2 is a partial sectional view of the vacuum adsorption apparatus based on the pneumatic soft body technology of the present invention.

Fig. 3 is a partially enlarged view of fig. 2.

FIG. 4 is a schematic structural diagram of a slider.

Detailed Description

For the purpose of illustrating the technical solutions and technical objects of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, a vacuum adsorption device applied to a soft robot includes a silica gel elastic body 2, a silica gel sealing ring 7 and a hard sliding sheet 1. 2 upper portions of silica gel elastic main body and software robot 3 are even as an organic whole, the walking of vacuum adsorption device as software robot 3 is sufficient, and silica gel elastic main body 2 upwards opens from the bottom surface has one to be the absorption chamber 5 of convergent loudspeaker form, is equipped with round silica gel sealing washer 7 at absorption chamber 5 bottom surface and regards as the sucking disc jointly. The bottom surface of the silica gel elastic main body 2 is provided with a circle of annular second-order stepped grooves 6 around the silica gel sealing ring 7, and when the sucker is adsorbed on the ground, the silica gel sealing ring 7 is turned upwards and is folded into the second-order stepped grooves 6. The silica gel elastic main body 2 and the silica gel sealing ring 7 are made of the same silica gel material and are injected with glue as a whole.

The hard slip sheet 1 comprises an L-shaped separation blade 1-1, a plurality of clamping teeth 1-3 and a plurality of clamping pieces 1-2, wherein the inner wall surface of the L-shaped separation blade 1-1 is provided with the plurality of clamping teeth 1-3, the bottom of the L-shaped separation blade 1-1 is upwards provided with a grid-shaped clamping piece 1-2, the clamping pieces 1-2 are fixedly connected with the clamping teeth 1-3, the L-shaped separation blade 1-1 is arranged on the front side wall of the silica gel elastic main body 2 and wraps the bottom edge of the silica gel elastic main body 2, the L-shaped separation blade is located in the advancing direction of the soft robot 3, and the bottom edge. The side wall of the silica gel elastic main body 2 is provided with an air charging and discharging port 4 which is communicated with the adsorption cavity 5 and generates vacuum in the adsorption cavity 5 after being connected with a vacuum generator, thereby realizing the adsorption effect.

Preparation during the vacuum adsorption device, print through the 3D technique and print stereoplasm gleitbretter 1 an organic whole and come out, later place stereoplasm gleitbretter 1 in the mould of preparation in advance, pour into AB type silica gel, treat that silica gel solidifies the back, silica gel elasticity main part 2, silica gel sealing washer 7 and stereoplasm gleitbretter 1 link as an organic wholely, accomplish vacuum adsorption device's preparation.

Furthermore, the silica gel sealing ring 7 and the annular step-shaped groove 6 are of asymmetric structures, the side, which is the same as the advancing direction, of the silica gel sealing ring 7 is a front half circle, the front half circle silica gel sealing ring 7 is flush with the bottom of the silica gel elastic main body 2, the rear half circle silica gel sealing ring 7 extends downwards to the bottom of the silica gel elastic main body 2, in the movement process, the front half circle silica gel sealing ring 7 cannot be curled inwards due to friction with the ground, and the rear half circle extending silica gel sealing ring 7 can ensure the air tightness of the adsorption device.

The following describes specific embodiments of the present invention:

when adsorption action needs to be generated, the vacuum generator is connected with the air charging and discharging port 4, a vacuum state is generated in the adsorption cavity 5, and adsorption force is generated between the vacuum generator and the ground; when the adsorption action is not required, the air charging and discharging port 4 is in contact with the atmosphere by using the electromagnetic directional valve, and the vacuum state in the adsorption cavity 5 is released.