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Six-degree-of-freedom parallel posture adjustment and vibration isolation platform containing tower-shaped telescopic branches

A technology of vibration isolation platform and degree of freedom, applied in the direction of workbench, manipulator, program control manipulator, etc., can solve the problems of no degree of freedom of rotation, no multi-dimensional vibration isolation function, small working space, etc., to reduce the overall occupied volume, The effect of increasing the overall rigidity and reducing the load of the drive

Inactive Publication Date: 2016-04-20
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 201210154506.9 proposes a 6PSS parallel motion simulation table, which consists of a moving platform, a base, and six identical PSS motion branches connecting the moving platform and the base. This invention occupies a small volume and can withstand heavy loads, but it does not have multidimensional Vibration isolation function, and its working space is small
Chinese patent 201510324022.8 proposes a 3PRS+6SPS parallel posture adjustment and vibration isolation composite platform, which consists of a moving platform, a frame, and three identical main branch chains and six identical elastic branch cha

Method used

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  • Six-degree-of-freedom parallel posture adjustment and vibration isolation platform containing tower-shaped telescopic branches
  • Six-degree-of-freedom parallel posture adjustment and vibration isolation platform containing tower-shaped telescopic branches
  • Six-degree-of-freedom parallel posture adjustment and vibration isolation platform containing tower-shaped telescopic branches

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] exist figure 1 In the schematic diagram of the six-degree-of-freedom parallel attitude-adjusting vibration isolation platform with tower-shaped telescopic branches shown, three mounting seats 2 with rectangular cross-sections are evenly arranged on the base 1, and two linear drive units are fixedly connected to each mounting seat 3, and the centerlines of the two linear drive units are collinear, and the centerlines of the six linear drive units form an equilateral triangle in the same plane; three tower-shaped telescopic branches with the same structure 6 are composed of two closed-loop connecting rods and a plane scissors mechanism , the scissors shaft of the plane scissors mechanism divides the scissors connecting rod into two parts, the lower part is long and the upper part is short. Together, the upper parts of the two scissor connecting rods and the two closed-loop connecting rods form a rhombus. The axis of the above-mentioned rotating pair is parallel to the rot...

Embodiment 2

[0028] Such as image 3 As shown, the section of the mounting seat 2 is an isosceles triangle, and the two linear drive units 3 connected to the same tower-shaped telescopic branch 6 are fixedly connected to the two slopes of the same mounting seat, and the centerlines of the two linear drive units are at In the same plane, other components and connection methods are the same as those in Embodiment 1.

Embodiment 3

[0030] Such as Figure 4 As shown, the cross-section of the mounting base 2 is a right triangle, the elevation where the right angle side is located is located on the inside, the bottom surface where the other right angle side is located is fixedly connected to the base 1, and the slope where the hypotenuse is located is located on the outside, connected to the same tower-shaped telescopic branch 6 The two linear drive units 3 are respectively fixedly connected to the slopes of two adjacent mounting bases, and other components and connection methods are the same as those in Embodiment 1.

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Abstract

The invention discloses a six-degree-of-freedom parallel posture adjustment and vibration isolation platform containing tower-shaped telescopic branches. The six-degree-of-freedom parallel posture adjustment and vibration isolation platform mainly comprises a base, three mounting seats, six linear driving units with the same structure, three tower-shaped telescopic branches with the same structure, three vibration isolators, a power-assisted spring and a movable platform, wherein the three mounting seats are arranged on the base; each mounting seat is fixedly connected with two linear driving units; each of the tower-shaped telescopic branches consists of two closed-loop connection rods and a planar shear fork mechanism; two tower legs at the lower end of the planar shear fork mechanism of each tower-shaped telescopic branch are respectively connected with sliding blocks of two adjacent linear driving units through ball hinges, and the upper end of the tower-shaped telescopic branch is a rotation pair connected with the two closed-loop connection rods; the rotating shaft of the rotating pair is connected with one end of the vibration isolator through a universal hinge; the other end of the vibration isolator is fixedly connected with the movable platform; the lower end of the power-assisted spring is fixedly connected to the base, and the upper end of the power-assisted spring is a free end. The six-degree-of-freedom parallel posture adjustment and vibration isolation platform occupies a small volume and is high in rigidity and high in bearing capacity and large in working space.

Description

technical field [0001] The invention relates to a parallel mechanism, in particular to a parallel attitude adjustment vibration isolation platform. Background technique [0002] Affected by the unevenness of the road surface during driving, the vehicle will produce multi-dimensional compound bumps such as vertical, roll and pitch of the vehicle body. If the on-board items are directly rigidly connected to the car body, the multi-dimensional vibration generated by the vehicle under poor road conditions will have a serious impact on the transportation of fragile and delicate items and on-board equipment that require attitude adjustment. In addition, when a ship is sailing at sea, due to the influence of weather and waves, it will cause six degrees of freedom movement: roll, pitch, yaw, sway, surge, and heave. At the same time, due to the influence of waves or its own diesel engine Vibration will be generated, and these unnecessary movements and vibrations will have a serious ...

Claims

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Application Information

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IPC IPC(8): B25J9/00B25H1/14
CPCB25J9/003B25H1/14
Inventor 赵铁石宋晓鑫杨勇赵家梁
Owner YANSHAN UNIV
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