Harmonic gear grinding device using magnetofluid

A harmonic gear and magnetic fluid technology, applied in the field of gear grinding processing, can solve the problems of inconstant cutting motion speed, inability to discharge, and reduce the strength of the flexible wheel, and achieve the effect of improving grinding efficiency and processing effect

Active Publication Date: 2017-02-15
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the device for grinding flexible splines using magnetic fluid proposed by the inventor (Deng Man, Xin Hongbing, etc. A method for grinding flexible splines using magnetic fluid. Science and Technology Innovation and Application, 2016 (6): 48) , there are the following problems: 1) There is no cylindrical core inside the deformable thin-walled flexspline. In the grinding process, the deformation of the thin-walled flexspline will lead to the distortion of the processed ring gear and tooth shape
2) Due to the limitation of the movement law of the mechanism, the crank slider mechanism makes the relative cutting speed of the flexible grinding head and the flexible wheel formed by the magnetic gradient magnetic field not constant, and the grinding quality of the tooth surface is not uniform
3) The O-shaped sealing ring cannot cover the flexspline body other than the internal ring gear of the sealing shell. During the processing, the flexspline body will be subjected to cutting action, which reduces the strength of the flexspline
4) During the processing, the magnetic fluid in the sealed shell cannot be renewed, and the blunted abrasives and chips cannot be discharged

Method used

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  • Harmonic gear grinding device using magnetofluid

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Embodiment Construction

[0015] As shown in the drawings, the flexspline 4 has a ring gear 4a, and a core 3 is installed inside the flexspline 4. The core 3 keeps the inner hole of the flexspline 4 cylindrical, and the flexspline 4 and the core 3 pass through a coupling 2 is fixed on the machine base 1; the left and right sides of the ring gear 4a on the flexspline 4 are respectively equipped with a sealing sleeve 5a and a sealing sleeve 5b, and the sealing shell 6 is connected to the flexspline core 3 through the connection 9 and then connected to the flexspline 4 or The gear ring 4a is positioned and fixed relatively, the sealing sleeve 5a and the sealing sleeve 5b protect the flex spline 4 inside the sealing housing 6 other than the ring gear 4a from grinding; the ring magnet 8 forms a movable connection with the positioning member 10a through the coupling 10 , the coupling 10 and the positioning piece 10a form a moving pair with an axial movement degree of freedom, the positioning piece 10a is inst...

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Abstract

The invention provides a harmonic gear grinding device using magnetofluid. According to the harmonic gear grinding device, an inner hole of a thin-wall flexible gear is kept cylindrical, the portion, located in a liquid tank, of a flexible gear drum body is not grinded, an annular magnet and the flexible gear are located according to the location datum to ensure coaxiality of relative movement, a linear movement mechanism ensures the constant cutting movement speed in the grinding process of a flexible gear ring, rusted grinding materials and cuttings in the liquid tank can be discharged in time, the defects of pervious schemes are overcome, and the grinding efficiency and the machining effect of harmonic gears are improved.

Description

technical field [0001] The invention relates to the field of gear grinding, in particular to a device for grinding harmonic gears by using magnetic fluid. Background technique [0002] Harmonic gear transmission technology is a new type of transmission technology that appeared on the basis of elastic thin shell theory with the development of space science and aerospace technology in the middle of the 20th century. It has the advantages of high motion precision, large transmission ratio, light weight, small size, large carrying capacity, and can work normally in confined spaces and medium radiation conditions. It has been successfully applied in space technology, instrumentation, robots, semiconductors, etc. Industry, food packaging machinery, printing machinery and medical equipment and other fields. [0003] The usual modulus range of harmonic gear transmission is 0.1mm to 1.5mm, which belongs to small modulus gear transmission. The flexible spline, rigid spline and wave g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F19/02B24B31/112B24B57/00
CPCB23F19/02B24B31/112B24B57/00
Inventor 辛洪兵邓曼郎诗慧侯雪琪王玉彬
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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