Method for detecting gear tooth profile and spiral line by diaxon servocontrol

A technology of helix and gear teeth is applied in the measurement field of transmission mechanical gears, which can solve the problems of complex control system and difficult to improve accuracy, and achieve the effect of eliminating mechanical structure, simplifying circuit design and expanding application fields.

Inactive Publication Date: 2009-04-29
CHINA JILIANG UNIV
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Problems solved by technology

The control system required by this measurement method is

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  • Method for detecting gear tooth profile and spiral line by diaxon servocontrol
  • Method for detecting gear tooth profile and spiral line by diaxon servocontrol

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Embodiment Construction

[0022] The purpose and effects of the present invention will become more apparent by referring to the accompanying drawings in detail of the present invention.

[0023] Such as figure 1 As shown, the tested gear 3 is installed on the rotary shaft 1 by the upper center 2 and the lower center 4, the displacement sensor 5 is installed on the measuring slider 6, and the probe of the displacement sensor contacts the gear teeth at the base circle position of the tested gear 3 On the surface, the measuring slider 6 can move along the tangent direction of the gear base circle and the direction of the gear axis (the up-down direction in the figure), and the column 7 can move along the normal direction of the gear base circle (the left-right direction in the figure).

[0024] When measuring the gear tooth profile, first convert the measurement of the measured gear tooth profile into the measurement of the angular displacement of the gear rotation and the linear displacement in the tange...

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Abstract

The invention discloses a two-axis follow-up control method for detecting gear tooth profiles and helices. The method acquires relative displacement signals of a measured curve and a gauge head in real time through a displacement sensor, so as to control the motion of a driven shaft; meanwhile, a angular displacement sensor and a linear displacement sensor acquire the displacement signals of two axes respectively, and then the measured curve can be drawn; and the measured curve is compared with a theoretical curve in a computer, so as to obtain the deviation of the measured curve. In the measurement method, the displacement sensor follows the measured curve to move, so as to ensure that the deviation range of the detectable measured curve is no longer constrained by the range of the displacement sensor, and expand measurement range. The measurement method can detect various types of continuous curves on gears, including circular arc profiles, involutes, helices and the like, increases the species of detectable curves, and expands application fields. In the measurement method, the two axes do not need to simulate the precise theoretical curve, thereby leaving out not only base circle plates and other mechanical structures in a mechanical generation method but also motion control cards and other components in an electronic generation method, and simplifying circuit design.

Description

technical field [0001] The invention relates to the technical field of measurement of transmission mechanical gears, in particular to a method for detecting gear tooth profile and helix by two-axis follow-up control. Background technique [0002] At present, the measurement methods of gear tooth profile and helix mainly include mechanical generation method, electronic generation method and coordinate method. [0003] The method of using the mechanical structure to reproduce the theoretical curve track on the instrument is called the mechanical generation method. Taking the measurement of gear tooth profile as an example, when a straight line and a circle are rolling without slipping, a point on the straight line is developed into an involute. A straight edge of the ruler is used to replace the straight line, and the circumference of the base disc with the radius of the base circle of the measured gear as the radius is used to replace the circle. Pure rolling is performed be...

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Application Information

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IPC IPC(8): G01B21/20
Inventor 赵军刘维孔明吴珂马忠祥
Owner CHINA JILIANG UNIV
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