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Large gear detecting method and detecting device

A large-scale gear and detection method technology, which is applied in the direction of measuring devices, machine gear/transmission mechanism testing, optical devices, etc., can solve problems such as backward methods, low efficiency, and inaccurate measurement

Active Publication Date: 2011-01-26
API ZC PRECISION INSTUMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional method of measuring large gears is to use conventional measuring tools (micrometers, calipers, dial indicators, etc.), which is backward, inaccurate and extremely inefficient

Method used

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  • Large gear detecting method and detecting device

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Experimental program
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Embodiment

[0032] Such as figure 1 As shown, the large-scale gear detection device of the present utility model includes a three-coordinate measuring machine 2, a rotary table 7 on which the gear to be measured 3 is placed, a laser tracker 4 and a laser tracker target mirror 9 (or an intelligent composite measuring head), and a control cabinet 6. Data processing system with special measuring software5. A measurement system is composed of the above-mentioned devices. The measurement steps are:

[0033] Step 1: Place the gear 4 to be tested on the rotary table 7 so that the centers of rotation of the two are basically the same.

[0034] Step 2: Place the target mirror 9 of the laser tracker on the measuring head 10 of the three-coordinate measuring machine 2, move the X, Y, and Z axes respectively, and the laser tracker 4 can measure the three The axis of the coordinate and its coordinate origin.

[0035] Step 3: Measure the datum plane of the gear 4 to be tested with the target mirror...

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Abstract

The invention discloses a large gear detecting method with high efficiency and high measurement accuracy, and a detecting device. The method adopts a coordinate method. A rotating device is used for rotating a detected gear; a length measuring device is used for detecting the toothed outline of the detected gear; the change of the relative position between a reference axial line of the detected gear and the length measuring device is determined by a laser tracker; and then the change value, the data collected by the length measuring device and the rotational angle data of the rotating device are processed so as to obtain geometric errors of the detected gear. The detecting device comprises the rotating device used for positioning the detected gear, the length measuring device used for detecting the toothed outline of the detected gear, and the laser tracker used for determining the change of the relative position between the reference axial line of the detected gear and the length measuring device. The invention innovatively combines the laser tracking technology with the large gear coordinate measurement, and realizes accurate and quick measurement to a plurality of errors of thelarge gear by using the coordinate method.

Description

technical field [0001] The invention belongs to the field of error measurement of large gears, and in particular relates to a detection method and a detection device of large gears. Background technique [0002] There are many error items that need to be tested for gears, and there are many measurement methods. The coordinate method is a relatively common method. For the specific inspection specifications, please refer to the national standard GB / T13924-92 of the People's Republic of China. The coordinate method can detect the comprehensive error of the gear. The measurement principle is to use the rotating device to support and rotate the measured gear, and use the length measuring device to detect the tooth profile of the measured gear, and then measure the angular displacement collected by the rotating device. The measurement and the linear displacement collected by the length measuring device are processed to form an overall error curve. On this curve, the geometric erro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/02G01B11/00G01B21/20
Inventor 卡姆・刘
Owner API ZC PRECISION INSTUMENT CO LTD