Study on inspection and avoidance of interferences in five-axis end milling of cycloidal gears

Luo, Saiyu; Liao, Longxing; Wang, Jian; Yin, Wen; Yi, Jixiang

doi:10.1007/s00170-017-0002-1

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…In addition, they conducted an influence analysis of the geometrical parameters of wheels on the manufacturing errors, as a result of which it was found that as the number of teeth of the wheel increases, the dimensional and shape accuracy decreases. In other studies, Luo et al [13] dealt with the algorithm of avoiding intersection of the tool envelope with the machined profile during 5-axis finishing milling of cycloidal wheels using an end-mill.…”

Section: Effect Of Manufacturing Errors On the Operation Of The Eccenmentioning

confidence: 99%

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

Pabiszczak¹,

Ptaszyński²

2020

Adv. Sci. Technol. Res. J.

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The eccentric rolling transmission consists of rolling bearings mounted eccentrically on the input shaft, cooperating with cam wheels, which are mounted on the output shaft. The aim of this paper was to determine the sensitivity of the transmission to the manufacturing errors of the cam wheel. Two methods of cam wheels milling using a universal CNC machining center were proposed. The measurements of manufactured wheels were performed using a blue light 3D scanner, which allowed the determination of geometric dimensions and deviations from nominal geometry. The experimental research of the eccentric rolling transmission prototype equipped with manufactured cam wheels was conducted, measuring the torque on the gear shafts as a function of its angular position. On the basis of the obtained results, the impact of manufacturing errors on the operation of the transmission unit was examined, especially in terms of torque and efficiency. It was indicated that the machining using ball nose end mill ensures sufficient accuracy of the cam wheels.

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Section: Effect Of Manufacturing Errors On the Operation Of The Eccenmentioning

confidence: 99%

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

Pabiszczak¹,

Ptaszyński²

2020

Adv. Sci. Technol. Res. J.

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“…The free-form milling process is much more complex than the form milling. To verify whether the swept envelope of the disc cutter will collide or interfere with the designed workpiece surface, a computer simulation analysis based on the tool positions is necessary [8][9][10]. If the free-form milling process was simulated by 3D realistic graphics technology, a series of Boolean operations of the swept envelope of the disc cutter and the workpiece would be needed to obtain the final 3D model, and the calculation efficiency was reduced [11,12].…”

Section: ．Introductionmentioning

confidence: 99%

“…In doing so, he showed that it was possible to solve the interference and double enveloping problems with the algorithm. In addition, because the cutting process can be simulated using CAD software like AutoCAD and Pro-E [15,16], many researchers achieved such simulation using CAD approach programs [8][9][10][11][12]. However, because these programs were developed based on CAD platforms, their efficiency was limited by the CAD system.…”

Section: ．Introductionmentioning

confidence: 99%

A simulation method for free-form milling of cylindrical gears with disc cutters

Sun

Lin

Hong

2022

Int J Adv Manuf Technol

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：Free-form milling is a flexible gear machining method that allows using general disc cutters to machine various gear types on a 5-axis machine tool. This paper proposes a two-dimensional simulation method for free-form milling of cylindrical gears with disc cutters. A mathematical model for free-form milling of cylindrical gears with disc cutters is constructed. By analyzing the spatial positional relationships between the cutter and the workpiece, the instantaneous contact line is derived and projected onto the gear end face, and then the projected curves are intersected to obtain the final profile. This calculation method realizes the rapid simulation of the actual cutting condition on the gear end face, which is beneficial to the judgment of machining interference and the analysis of the tooth profile accuracy during the gear machining process.

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“…This method is based on the Eular-Meusnier spheres concept and the geometric model of surface curvature geometry [11]. Shanming Luo et al proposed the curvature matching method and the minimum distance method to inspect interferences occurring in the five-axis end milling of cycloidal gears [12]. Jensen et al presented a method for determining the tool orientation based on the CMM in 5-axis finish surface machining.…”

Section: Introductionmentioning

confidence: 99%

A Tool Tilt Angle Calculation Method in 5-axis Flat-end Milling for Free Surface Machining

Jang¹,

Yu²,

Hwang³

et al. 2021

IJIMSE

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This paper proposes a method for calculating the tilt angle of the tool and the machining strip width when the tool is inclined to the feed direction. Tilt angle of the tool and machining strip width are important factors which affect feed rate and machining quality in five-axis flat-end milling for free surface. There are some methods to calculate the tilt angle of the tool in five-axis flat-end milling for free surface, but mathematically complicated algorithm is applied to the calculation of tilt angle of the tool, so it is difficult to apply it in practice. We considered the geometry of the surface and the tool as well as the scallop height to determine the tool tilt angle, thus ensuring the tool to be contacted with the surface at two points. This allows us to calculate the tool tilt angle and the machining strip width by solving quadric equations based on the contact circle. Moreover, tool tilt angle and machining strip width are calculated analytically. Thus the speed of calculation is quick and easy to implement. An experiment of machining on the biquantic B-spline surface was performed and the results show that the proposed method has considerably higher machining efficiency than the CMM.

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Study on inspection and avoidance of interferences in five-axis end milling of cycloidal gears

Cited by 7 publications

References 9 publications

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

Effect of Manufacturing Errors on the Operation of the Eccentric Rolling Transmission

A simulation method for free-form milling of cylindrical gears with disc cutters

A Tool Tilt Angle Calculation Method in 5-axis Flat-end Milling for Free Surface Machining

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