Development of spiroid worm gear drive having arched profile in axial section and a new technology of spiroid worm manufacturing with lathe center displacement

Dudás, Illés; Bodzás, Sándor; Mándy, Zoltán

doi:10.1007/s00170-015-6953-1

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…Rotational motion is the main movement of turning. A spindle of ordinary NC lathe has realized speed control, which can work in the case of invariant rotational speed or constant linear velocity (Dudas et al, 2015). However, most of the spindle has not achieved position control, which does not have the C-axis functions, which cannot be achieved position-linkage control with other feed axes.…”

Section: Machining Principle Of New Roughing Methodsmentioning

confidence: 99%

A processing method for rough cutting hourglass worm on general NC lathe

Qiu

Zhang

Zhou

et al. 2019

JAMDSM

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The manufacturing method of two spatial-orthogonal rotary axis linkage is usually used to cut hourglass worm. However, the traditional processing method of roughing tooth groove depends on the special machine, specific tool, and its processing efficiency is lower. To avoid these defects, a processing method of the rough cutting hourglass worm on general NC lathe without C-axis functions was presented in the paper. Based on the forming principle of the hourglass worm and the traditional processing steps, the machining principle of the new approach was elaborated. Key techniques such as the shape of the blade, the contours of tooth groove, tool path loop and the variable lead of worm, etc. were discussed. Macro-program of the new method was programmed based on Fanuc oi mate-tc CNC system, and tooth groove of the hourglass worm were trial manufactured on general NC lathe. Addendum axial pitch and a normal tooth thickness of the trial model were measured. It is noted that measurement results can satisfy the technological requirement. In conclusion, the new processing method of roughing hourglass worm is feasible and efficient.

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Section: Machining Principle Of New Roughing Methodsmentioning

confidence: 99%

A processing method for rough cutting hourglass worm on general NC lathe

Qiu

Zhang

Zhou

et al. 2019

JAMDSM

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show abstract

“…Programmed strategies were machined and, in Figure 13, the gear result after the roughing strategies (R-I for teeth 1 to 5, R-II for teeth 6-10, R-III for teeth 11-15, R-IV for teeth [16][17][18][19][20], and R-V for teeth [21][22][23][24][25] and the gear result after the finishing strategies (F-I for teeth 1 to 5, F-II for teeth 6-10, F-III for teeth 11-15, F-IV for teeth 16-20, and F-V for teeth 21-25) can be observed. …”

Section: Machiningmentioning

confidence: 99%

Five-Axis Milling of Large Spiral Bevel Gears: Toolpath Definition, Finishing, and Shape Errors

Álvarez¹,

Calleja

Ortega

et al. 2018

Metals

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Abstract:In this paper, a five-axis machining process is analyzed for large spiral-bevel gears, an interesting process for one-of-kind manufacturing. The work is focused on large sized spiral bevel gears manufacturing using universal multitasking machines or five-axis milling centers. Different machining strategies, toolpath patterns, and parameters are tested for both gear roughing and finishing operations. Machining time, tools' wear, and gear surface are analyzed in order to determine which are the best strategies and parameters for large modulus gear manufacturing on universal machines. The case study results are discussed in the last section, showing the capacity of a universal five-axis milling for this niche. Special attention was paid to the possible affectations of the metal surfaces, since gear durability is very sensitive to thermo-mechanical damage, affected layers, and flank gear surface state.

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“…Mohan and Shunmugan 2 analyzed the geometrical performances of toroidal worm drive, and simulated the worm wheel tooth profile generated by different axial sections. Dudas et al 3 developed the arched profile spiroid worm gear drive, and proposed a new manufacturing technology for the spiroid worm with lathe. Zhao et al 4–7 proposed the novel double anchor ring secondary enveloping toroidal worm gearing, the tooth flank modification theory, tooth contact, and mismatched performance are investigated.…”

Section: Introductionmentioning

confidence: 99%

Study on the toroidal helix and manufacturing method of enveloping hourglass worm tooth surface

Chen

Wang

Ma³

2023

Advances in Mechanical Engineering

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As a complex space enveloped surface, the tooth surface of dual-lead helical gear enveloping hourglass worm is characteristic with difference tooth profile, unequal pitch and variable tooth thickness. To grasp the geometry characteristics and precision manufacturing method of it, the analytical method for toroidal helix is presented. The mathematical model of toroidal helix is developed, and the geometry characteristics of helix angle, axial tooth thickness, and tooth surface undercutting are analyzed. The helix angle of toroidal helix presents the convex shape, and the undercutting characteristic is affected by the pressure angle, helix angle, transmission ratio, and normal modulus. Based on the toroidal helix of tooth surface, the precision manufacturing method is proposed, and the measuring method is developed. The hourglass worm sample was manufactured and measured, and the transmission accuracy of hourglass worm drive is tested. The results show that the manufacturing and measuring method of toroidal helix is effective and feasible.

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Development of spiroid worm gear drive having arched profile in axial section and a new technology of spiroid worm manufacturing with lathe center displacement

Cited by 14 publications

References 3 publications

A processing method for rough cutting hourglass worm on general NC lathe

A processing method for rough cutting hourglass worm on general NC lathe

Five-Axis Milling of Large Spiral Bevel Gears: Toolpath Definition, Finishing, and Shape Errors

Study on the toroidal helix and manufacturing method of enveloping hourglass worm tooth surface

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