A High Precision Rotary Positioning Mechanism

A positioning mechanism and high-precision technology, applied in mechanical equipment, transmission devices, belts/chains/gears, etc., can solve problems such as no description or report found, and data not yet collected, achieving good locking ability and small positioning torque requirements , the effect of smooth start

Active Publication Date: 2019-05-28
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

Method used

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  • A High Precision Rotary Positioning Mechanism
  • A High Precision Rotary Positioning Mechanism
  • A High Precision Rotary Positioning Mechanism

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Embodiment Construction

[0023] The high-precision rotary positioning mechanism proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0024] Such as figure 1 with figure 2 As shown, the high-precision rotary positioning mechanism provided by the present invention includes: a turntable bearing outer ring 1, a turntable bearing inner ring 2, a base 3, a first slider 4, a connecting rod 5, an active rod 6, and a second slider 7. , Bearing 8, first screw 9, bearing retaining ring 10, second screw 11.

[0025] A slewing bearing is composed of the slewing bearing outer ring 1 and the sl...

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PUM

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Abstract

The invention provides a high-precision rotating positioning mechanism which is achieved by adopting the principle of a six-rod mechanism. A rotating disc bearing outer ring, a first sliding block, a connecting rod, a driving rod and a second sliding block serve as rod pieces in the six-rod mechanism respectively, and a rotating disc bearing inner ring, a base, a bearing, a first screw, a bearing check ring and a second screw jointly form a rod piece in the six-rod mechanism, wherein a rotating disc bearing serves as the output end, and the driving rod serves as the input end. The high-precision rotating positioning mechanism can meet the functional requirements of a spatial rotating platform for high-precision positioning and high-torque locking and has the advantages of being low in starting load, high in in-place precision, capable of achieving mechanism self-locking after in place and the like.

Description

technical field [0001] The invention relates to the field of space rotation positioning mechanisms, in particular to a high-precision rotation positioning mechanism. Background technique [0002] Rotary mechanisms are widely used, and Tiangongmengtian load transfer mechanism has the following requirements for the rotary mechanism: reciprocating rotation within a given angle range, high positioning accuracy at two extreme positions, and in-position locking function at two extreme positions. The present invention utilizes the characteristic that when the output end of the six-bar mechanism is at the limit position, the change in the angle of the input end causes a small change in the angle of the output end to realize the requirement of high positioning accuracy; and utilizes the self-locking feature of the six-bar mechanism when the output end is at the limit position to realize the in-position Lock function. [0003] At present, the known rotating mechanisms are mostly real...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H21/16
CPCF16H21/16
Inventor 高金忠冯文博靳宗向周杰叶甲秋杨晓青袁稼进
Owner SHANGHAI AEROSPACE SYST ENG INST
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