Vacuum attraction device applied to soft robot
A technology of vacuum adsorption and robotics, which is applied in the fields of motor vehicles, transportation and packaging, etc. It can solve the problems of “back slipping”, low climbing angle, waste of resources, etc., and achieve the effect of increasing the contact area and improving the sealing performance
Active Publication Date: 2019-12-20
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0004] Although the existing soft robots have a variety of movement modes, they lack the ability to absorb the ground. During the movement, they are prone to "slipping" phenomenon, the climbing angle is low, and the simple circular adsorption air cavity has poor sealing performance. The required vacuum is too high, resulting in waste of resources and affecting the environmental adaptability of soft robots
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[0021] When it is necessary to generate adsorption, the vacuum generator is connected to the inflation and deflation port 4 to generate a vacuum state in the adsorption chamber 5 and generate an adsorption force with the ground. Because of the elastic characteristics of silica gel, the bottom of the silica gel elastomer 2 is deformed, and the silica gel The sealing ring 7 is also squeezed by the ground, and folded outwards in the second-order stepped groove 6, which expands the contact area with the ground and enhances the sealing performance of the adsorption device; Valve, so that the filling and deflation port 4 is in contact with the atmosphere, and the vacuum state in the adsorption chamber 5 is released.
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The invention discloses a vacuum attraction device applied to a soft robot. The device comprises silica gel elastic main bodies, silica gel sealing rings and hard sliding sheets, wherein the upper portions of the silica gel elastic main bodies are connected with the soft robot to form a whole, the vacuum attraction device is used as a walking foot of the soft robot, and the silica gel elastic mainbodies are provided with tapered horn-shaped attraction cavities from the bottom face upwards, the bottom surfaces of the silica gel elastic main bodies are each provided with a ring of annular two-step stepped grooves around the silica gel sealing rings, and when a sucker is attracted to the ground, the silica gel sealing rings are folded upwards into the two-step stepped grooves. The device isfixedly connected with a driving device of the soft robot, and through the attraction force generated between the attraction device and the ground, the problem of sliding backwards of the robot duringcrawling is effectively solved, and the technical requirement of 'climbing' of the robot is met.
Description
technical field [0001] The invention relates to the field of soft robots, in particular to a vacuum adsorption device applied to soft robots. Background technique [0002] Traditional robots are mostly rigid robots, whose rigid modules are connected by various kinematic pairs, and are widely used due to their advantages of precise control and smooth motion. But its shortcomings are also obvious. The movement form is too complicated. For complex ground conditions and small spaces smaller than its own size, it cannot perform autonomous movements, and its environmental adaptability is poor. For example, in military reconnaissance, in order to ensure the concealment of reconnaissance, reconnaissance robots are required to have the ability to drill through small-sized and complex-shaped passages such as wall seams. In addition, in the rescue process of natural disasters such as mine disasters and earthquakes, robots are required to be able to go deep into the ruins for detection...
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Login to View More IPC IPC(8): B62D57/02B62D57/024
CPCB62D57/02B62D57/024
Inventor 滕燕孙佳辉李小宁
Owner NANJING UNIV OF SCI & TECH



