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Gear shaping

About: Gear shaping is a research topic. Over the lifetime, 598 publications have been published within this topic receiving 1880 citations.


Papers
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TL;DR: In this paper, a virtual prototype of drive gear transmission system was created by Romax analysis software, and made simulation after establishing some constraint conditions according to the working conditions, and the results showed that all bearings used in the virtual prototype this paper meet the requirements of mechanical performances.
Abstract: As the key system of NC gear shaping machine, the principle property of the drive transmission system have a decisive influence upon a complete machine. The virtual prototype of drive gear transmission system was created by Romax analysis software in this paper, and made simulation after establishing some constraint conditions according to the working conditions. Both ISO 281 and Romax Adjusted are applied to analyze and predict fatigue life of each bearing, then through using the principle of Miner, all the damage percentage were added together under different conditions. The results showed that all bearings used in the virtual prototype of drive gear transmission system meet the requirements of mechanical performances. This study provides theory basis for follow-up design and optimization on NC gear shaping machines drive transmission system.

2 citations

Patent
19 Oct 2018
TL;DR: In this paper, a method for predicting the cutting force of cylindrical gear slotting is proposed, which consists of calculating the area of a circular ring in the contact area between a gear and a slotting cutter during machining, and uniformly distributing enough data points in the circular ring.
Abstract: The invention relates to a method for predicting cutting force of cylindrical gear slotting, which comprises the following steps: calculating the area of a circular ring in the contact area of a cylindrical gear and a slotting cutter during machining, and uniformly distributing enough data points in the circular ring; according to the position relation between the cylindrical gear and slotting cutter, solving a coordinate transformation matrix; judging the points after coordinate transformation, selecting the points in the gear shaping cutter according to the size of the pole diameter and thepole angle at the gear tooth position of the gear shaping cutter; distributing enough data points equidistantly on the tooth tip circle and involute of the gear shaping cutter; in each step of gear shaping cutter cutting, judging the point of contact between the gear shaping cutter and a workpiece, and selecting the point of contact between the gear shaping cutter and the workpiece according to the distance between equidistant points distributed on the gear shaping cutter tooth profile and the workpiece center; and determining the magnitude of the cutting force by the formula based on the unitcutting force. The invention can accurately predict the cutting force of cylindrical gear shaping, and has the advantages of high calculation precision and high calculation efficiency.

2 citations

Patent
13 Feb 2013
TL;DR: In this paper, an oblique tool retracting device of a gear shaping machine is described, which consists of a middle machine body, an upright, a big key, a screw rod, a nut and a flange plate.
Abstract: The invention discloses an oblique tool retracting device of a gear shaping machine; the oblique tool retracting device comprises a middle machine body, an upright, a big key, a screw rod, a nut and a flange plate, wherein the flange plate is fixed on the middle machine body; the nut is fixed at the lower part of the upright; one end of the screw rod penetrates through an inner hole of the flange plate; the other end of the screw rod rotates into a screw hole of the nut; and the big key is fixed on the middle machine body. The oblique tool retracting device of the gear shaping machine, disclosed by the invention, has the advantages as follows: simple structure is obtained; through adjusting the screw rod, the tool can generate relative movement so as to eliminate abnormal situations during machining gears.

2 citations

Patent
12 May 2010
TL;DR: In this paper, a manufacturing method of a rocker shaft gear sector of a negative ratio redirector and a gear shaping cutter is described, which consists of the following steps of: firstly determining the angle transmission ratio of the redirector; then determining a computational formula of the special gear shape of the rocker-shaft gear sector according to the transmission ratio; then drawing a curve group according to computational formula to determine a male normal line of a large gear shape end used as a measurement foundation during machining.
Abstract: The invention relates to a manufacturing method of a rocker shaft gear sector of a negative ratio redirector and a gear shaping cutter used for the same. The manufacturing method comprises the following steps of: firstly determining the angle transmission ratio of the redirector; then determining a computational formula of the special gear shape of the rocker shaft gear sector according to the transmission ratio; then drawing a curve group according to the computational formula to determine a male normal line of a large gear shape end used as a measurement foundation during machining; then inputting the transmission ratio on a gear shaping machine to generate a machining procedure; and finally utilizing the specially-made gear shaping cutter to carry out the cutting machining of the rocker shaft gear sector. The manufacturing method can be realized by using the gear shaping cutter, the rocker shaft gear sector with different gear shapes can be manufactured by adopting the manufacture method of the invention, and the negative ratio of the redirector can be realized in such a way that the rocker shaft gear sector is matched with a piston fitted with the rocker shaft gear sector.

2 citations

Patent
18 Jan 1979

2 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20215
202023
201946
201841
201751
201651