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A Measuring Method of Curvature Radius of Tapered Roller

A technology of tapered roller and radius of curvature, which is applied in the field of automatic detection of bearing rollers, can solve the problems of high measurement accuracy, large measurement error, and difficult to achieve, and achieve the effect of improving measurement accuracy, avoiding manual errors and improving factory performance.

Inactive Publication Date: 2018-02-09
LUOYANG HENGJI INTELLIGENT CNC EQUIP TECH CO LTD
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Problems solved by technology

The direct measurement method of the profiler is easy to introduce large measurement errors in the process of centering and operation, so it is difficult to achieve high measurement accuracy

Method used

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  • A Measuring Method of Curvature Radius of Tapered Roller

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Embodiment Construction

[0030] The invention is a method for measuring the radius of curvature of a tapered roller. The invention uses a laser displacement sensor to measure the radius of curvature of two sections of different circular arcs at the same height of the tapered roller, and then uses the least square method to fit the radius of curvature at the height. , Repeat the same process to measure the radius of curvature at other heights, so as to calculate the total radius of curvature of the tapered roller, and judge whether the total radius of curvature meets the design requirements.

[0031] combine figure 1 , The method of the present invention uses a set of measuring devices, the measuring device includes a base 1, a two-dimensional mobile movable frame 2, a bracket 3, a laser displacement sensor 4, a clamping sleeve 6, an air bearing turntable 7, and an air bearing 8 And the servo motor 9, the rotation angle and the rotation speed v of the servo motor 9 1 and v 2 are controlled by compute...

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Abstract

The invention relates to a measurement method for the curvature radius of a tapered roller. A set of measuring device unit is used. The measuring device unit consists of a pedestal (1), a two-dimensional movable frame (2), a bracket (3), a laser displacement sensor (4), a clamping sleeve (6), an air-flotation rotary table (7), an air bearing (8) and a servo motor (9). According to the invention, the laser displacement sensor is used for measuring curvature radiuses of two segments of arcs of a tapered roller at the same height. With a non-contact way applied to the measurement process, the precise structure and profile of the arc on the surface of the tapered roller can be protected from being damaged; the curvature radius at the height can be fitted by using a least square method; and curvature radiuses at other heights are measured by repeating the same process, so that a total curvature radius of the tapered roller is calculated and then whether the total curvature radius meets a design requirement is determined. Therefore, the measurement precision of the curvature radius of the tapered roller is improved and the manual error is avoided; the factory performance of the tapered roller is improved effectively; and the measurement method is simple and reliable and the measurement device can be used repeatedly.

Description

technical field [0001] The invention belongs to the technical field of automatic detection of bearing rollers, and in particular relates to a method for measuring the radius of curvature of tapered rollers. Background technique [0002] The radius of curvature of a tapered roller reflects the characteristic quality of its surface geometry, which not only affects the assembly quality of the bearing, but also determines the stability of the bearing. However, limited by the processing level, there are often slight differences in the radius of curvature of the finished tapered rollers, which are the key to restricting the improvement of bearing performance. Therefore, after grinding, it is necessary to check whether the radius of curvature of the tapered roller meets the accuracy and design requirements. [0003] In the actual inspection, the measurement methods of the radius of curvature of the tapered roller mainly include the profiling method, the standard roller coloring me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/255
CPCG01B11/255
Inventor 王中宇
Owner LUOYANG HENGJI INTELLIGENT CNC EQUIP TECH CO LTD
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