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Tandem type six-degree-of-freedom accurate adjustment device

A technology of precise adjustment and degree of freedom, applied in the direction of workbench, manufacturing tools, etc., can solve the problems of difficult to adapt to the docking assembly process, unstable assembly quality, difficult to apply precision assembly, etc., to achieve high angular accuracy, convenient adjustment and operation , the effect of precise control

Active Publication Date: 2016-04-27
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is the most primitive manual assembly operation mode for production. Under the current situation of rapid development of digitalization and automation, its docking assembly technology has been difficult to adapt to the development of the new situation.
As the space deployment mechanism becomes more sophisticated and complex, higher requirements are put forward for assembly accuracy. Traditional assembly relies on the practical experience and technology of operators, and the assembly quality is unstable.
[0004] To realize automatic assembly, it is necessary to adjust the six degrees of freedom of the workpiece, but currently there are few mechanisms that can achieve six degrees of freedom position adjustment, and because of their own characteristics, it is generally difficult to apply to precision assembly

Method used

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  • Tandem type six-degree-of-freedom accurate adjustment device
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  • Tandem type six-degree-of-freedom accurate adjustment device

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specific Embodiment

[0041] Carry out accuracy calculation analysis to the present invention

[0042] First, the accuracy analysis of the device translation mechanism (X-direction moving layer, Y-direction moving layer, Z-direction moving layer)

[0043] The device adopts THK brand precision rolling guide rail and ball screw. The lead screw on the Z-direction moving layer bears all load values, and the force is the largest. Choose a BNK type precision lead screw with a diameter of φ 20 , the lead is 4mm. The number of teeth of the worm gear and worm in the moving layer in the Z direction is respectively selected as, the number of worm heads z 1 = 1 worm gear teeth number z 2 =82. The load of the X-direction moving layer and Y-direction moving layer is small, so the diameter of the BNK type shaft diameter is selected as 8mm; but because the load of the X-direction moving layer and Y-direction moving layer is not high, and in order to achieve higher precision, choose a smaller The lead is 1mm. ...

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Abstract

The invention discloses a tandem type six-degree-of-freedom accurate adjustment device which comprises an X-direction moving layer moving along the X-axis, a Y-direction moving layer moving along the Y-axis, a Z-direction moving layer moving along the Z-axis, an X-direction rotating layer eccentrically rotating around the X-axis, a Y-direction rotating layer eccentrically rotating around the Y-axis and a Z-direction rotating layer eccentrically rotating around the Z-axis. The tandem type six-degree-of-freedom accurate adjustment device adopts a tandem type combination mode for the first time, independent movement and adjustment can be achieved in the direction of each axis when the position of a product is adjusted, and six-degree-of-freedom free posture adjustment is achieved. Compared with a parallel type structure, the tandem type structure is simpler. Meanwhile, the tandem type six-degree-of-freedom accurate adjustment device can be used for manual adjustment.

Description

technical field [0001] The invention relates to a serial six-degree-of-freedom precision adjustment device, which belongs to the field of attitude control of space mechanisms. Background technique [0002] In recent years, general assembly technology has been lagging behind processing technology, and mechanical assembly technology has gradually become a weak link in realizing production modernization. Assembly problems will lead to product performance degradation, and even lead to accidents, so enough attention should be paid to the assembly of mechanical products. At present, assembly is mainly divided into two types: manual assembly and automatic assembly. Manual assembly is the main assembly method at present, and its assembly process is mainly completed by manual operation, which has the disadvantages of low precision, poor stability, high labor intensity, and high cost. Mechanical automated assembly has the advantages of high efficiency, high precision, and good stabi...

Claims

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Application Information

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IPC IPC(8): B25H1/18
CPCB25H1/18
Inventor 何鹏鹏鲁利刚程泽张加波郑树杰徐立力张景和赖小明赵丹妮
Owner BEIJING SATELLITE MFG FACTORY