Measurement method for curvature radius of tapered roller

A technology of tapered rollers and radius of curvature, which is applied in the field of automatic detection of bearing rollers, can solve the problems of large measurement errors, high measurement accuracy, and difficult to achieve, and achieve the effects of avoiding manual errors, improving measurement accuracy, and improving factory performance
CN105698709AInactive Publication Date: 2016-06-22LUOYANG HENGJI INTELLIGENT CNC EQUIP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LUOYANG HENGJI INTELLIGENT CNC EQUIP TECH CO LTD
Publication Date
2016-06-22
Estimated Expiration
Not applicable · inactive patent

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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.
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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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