An unloading series-parallel hybrid multi-degree-of-freedom attitude adjustment platform
A degree of freedom and attitude adjustment technology, applied in the field of attitude adjustment platform, can solve the problem of reducing the height of the attitude adjustment platform, and achieve the effect of reducing the bearing capacity
Active Publication Date: 2020-05-12
YANSHAN UNIV
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Problems solved by technology
[0007] Aiming at the problems existing in the application of the existing parallel platform technology, the present invention provides an unloading series-parallel hybrid multi-degree-of-freedom attitude adjustment platform, whose purpose is to overcome the need to use a large-carrying-capacity platform under the heavy load of the traditional parallel platform. For the problem of the drive branch, the unloading device can realize the adjustment of the multi-degree-of-freedom pose of the workpiece under the condition of using the drive branch with a small carrying capacity, which improves the force of the drive branch and effectively reduces the attitude adjustment platform. The height, to meet the requirements of large parts assembly height
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[0022] exist figure 1 and figure 2 In the schematic diagram of the unloading series-parallel hybrid multi-degree-of-freedom attitude-adjusting platform shown, the fixed platform 1 is fixed on the ground base by bolts, and the moving platform 4 adopts a cuboid truss structure as a whole, and four pairs of supporting rollers are symmetrically arranged front and rear in the truss Each support roller seat is equipped with a support roller 7, a pair of gear seats are provided between the two pairs of support rollers 22 at the back, and six hinge seats that are not completely symmetrical are correspondingly provided on the moving platform and the fixed platform. , the two ends of the electric cylinders in the six UPS drive branches 3 with the same structure are respectively connected to the hinge seats of the fixed platform and the moving platform through the Hooke joint and the spherical joint, and the movement of the three degrees of freedom of the workpiece is realized by the ac...
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An unloading type series-and-parallel connection multi-degree-of-freedom posture adjusting platform comprises a fixed platform body, a movable platform body, a UPS drive branch, an unloading device, an overturning platform body and a drive device, wherein the fixed platform body and the movable platform body are connected through the UPS drive branch to form a six-degree-of-freedom posture adjusting mechanism; the unloading device is arranged on the fixed platform body and connected with the movable platform body through a wire rope; the overturning platform body is arranged on the movable platform body and can turn over by 0-90 degrees around the circle center of the overturning platform body; and the drive device achieves switch between a workpiece vertical state and a workpiece horizontal state. Bearing force needed by an electric cylinder is reduced, and the posture adjusting requirements of workpieces with limitation to height can be met; and the unloading type series-and-parallel connection multi-degree-of-freedom posture adjusting platform has the function of enabling workpieces to freely turn over and can be applied to the relevant fields needing precision assembly, large bearing capacity and strict requirements for height, like aerospace and satellites.
Description
technical field [0001] The invention relates to a series-parallel mechanism, in particular to an attitude adjustment platform. Background technique [0002] In recent years, the six-degree-of-freedom parallel mechanism has been widely used in the fields of parallel machine tools, robots, motion simulators and six-dimensional force sensors due to its characteristics of large bearing capacity, high stiffness, high precision, good system dynamic response and small cumulative error. . With the development of related equipment in the direction of multi-function and multi-purpose, the equipment is becoming more and more complex and sophisticated, which urgently requires the development of large-scale tooling equipment. The traditional six-degree-of-freedom parallel platform can only meet the function of six-degree-of-freedom attitude adjustment of equipment. This makes it difficult for the pure parallel platform to meet the requirements of technological development, which means t...
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IPC IPC(8): B25J9/08B25J9/00
CPCB25J9/0072B25J9/08
Inventor 姚建涛周玉林曾达幸侯雨雷张弘陈俊涛单俊云张星井国宁赵永生
Owner YANSHAN UNIV