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Parallel robot and linear parallel mechanism

A parallel and robot technology, applied in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the difficulty of increasing the stability of linear parallel robot adjustment, the long load flow line of series mechanisms, errors and other problems

Active Publication Date: 2014-11-19
DELTA ELECTRONICS INC
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Problems solved by technology

[0002] According to the traditional tandem robot mechanism, a tandem three-axis adjustment mechanism is required, which can automatically adjust the attitude and angle of its movable platform horizontally and vertically, but this mechanism has the following disadvantages: (1) the tandem mechanism is easy to adjust. Causes the accumulation of errors; (2) The load flow line of the series mechanism is long, the strength of the mechanism is weak, and it is easy to deform; (3) If the strength of the series mechanism is to be increased, the inertia will be increased, resulting in difficulty in mechanism control and poor accuracy , and the energy consumption is serious; (4) The problem of thermal deformation cannot be effectively eliminated when the tandem mechanism is actuated
[0008] Fourth, the three sets of transmission components are scattered and installed on the periphery of a working platform, making it difficult to centrally control the working inertia and increasing the difficulty of adjusting the stability of linear parallel robots

Method used

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  • Parallel robot and linear parallel mechanism
  • Parallel robot and linear parallel mechanism
  • Parallel robot and linear parallel mechanism

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Embodiment Construction

[0023] see figure 1 , which shows the appearance of a linear parallel mechanism with a cover 500 according to an embodiment of the present invention. The linear parallel mechanism of this embodiment includes a fixed platform 100 , a movable platform 200 and a plurality of link groups 300 . A plurality of parallel and symmetrical link groups 300 are telescopically operated to drive the movable platform 200 to move relative to the fixed platform 100 in a three-dimensional space. Depend on figure 1 It can be seen that in actual operation, a cover 500 can be added to prevent the linear parallel mechanism from being affected by the external environment during use.

[0024] see figure 2 , is drawn according to figure 1 A perspective view of the linear parallel mechanism of the embodiment. The fixed platform 100 includes a fixed base 110 and a fixed base 120 , and the fixed base 120 is disposed at a central position of the fixed base 110 . The movable platform 200 corresponds ...

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Abstract

The invention provides a linear parallel mechanism which comprises a fixed platform, a movable platform and a plurality of connection rod sets. The connection rod sets connect the fixed platform and the movable platform and drive the movable platform. One of the connection rod sets comprises linear transmission elements and actuating connection rods, and the actuating connection rods are driven by the linear transmission elements so that the movable platform can move relative to the fixed platform. By means of the linear parallel mechanism, the problem of error accumulation of a traditional serial robot mechanism is solved, the problem of the kinematic error of a conventional parallel robot mechanism is solved as well, the work range of a robot can be expanded, and the work stability of the robot can be enhanced.

Description

technical field [0001] The invention provides a linear parallel mechanism, especially a stable linear parallel mechanism and a parallel robot with the aforementioned parallel mechanism. Background technique [0002] According to the traditional tandem robot mechanism, a tandem three-axis adjustment mechanism is required, which can automatically adjust the attitude and angle of its movable platform horizontally and vertically, but this mechanism has the following disadvantages: (1) the tandem mechanism is easy to adjust. Causes the accumulation of errors; (2) The load flow line of the series mechanism is long, the strength of the mechanism is weak, and it is easy to deform; (3) If the strength of the series mechanism is to be increased, the inertia will be increased, resulting in difficulty in mechanism control and poor accuracy , and serious energy consumption; (4) The problem of thermal deformation cannot be effectively eliminated when the tandem mechanism is actuated. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/08
Inventor 彭志诚王兆祥吴信贤杨明棋
Owner DELTA ELECTRONICS INC
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