Abstract
A three-dimensional probe is mounted on a specialized gear measuring machine whose measurement target is limited on the working flanks. The newly developed measuring machine has a coordinate measuring mechanism, aiming to be a highly versatile and relatively inexpensive measuring machine. According to our previous research, in addition to the working tooth surface, shape data of the root, bottom and tip profiles can be acquired with a single measurement operation. However, the target object for which this developed method has been applied was only the external cylindrical gear. In this paper, we applied and expanded the development method to the internal cylindrical gear and the evaluation of the axial displacement in the same cross-sectional scanning of the internal helical gear are performed.
Highlights
In manufacturing gears, machining and inspection are inextricably linked together, and to improve the accuracy of gears, it is essential to improve machining technology and high-precision inspection technology [1][2]
According to our previous research, a gear outline scanning measurement was developed, in which a 3D probe is mounted on a CNC gear measurement machine and the probe performs scanning measurement with a single path without detaching the stylus from the measured surface [3][4]
By adapting the whole outline scanning measurement to the internal gear, profile data of the tooth root, tooth bottom and tooth tip of all teeth were acquired at one time scanning in addition to the working tooth flanks
Summary
In manufacturing gears, machining and inspection are inextricably linked together, and to improve the accuracy of gears, it is essential to improve machining technology and high-precision inspection technology [1][2]. According to our previous research, a gear outline scanning measurement was developed, in which a 3D probe is mounted on a CNC gear measurement machine and the probe performs scanning measurement with a single path without detaching the stylus from the measured surface [3][4]. By this method, it is possible to add the measurement function of the tooth root, the tooth bottom and the tooth tip profiles to the measuring machine whose measurement range is conventionally limited to the working tooth flank. It is necessary to adapt this method to different types of gears to improve the versatility of the developed machine
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