Showing papers on "Gear shaping published in 1983"
TL;DR: In this article, the effect of tip-relief angle on the number of teeth that can be cut on a cylindrical gear is analyzed for both external and internal gears.
5 citations
TL;DR: In this article, the analysis of inherent errors in the gear-shaping process is discussed and guidelines to avoid such errors, taking into account the effect of tip-relief angle.
Abstract: A gear-shaping process is used to cut cylindrical gears, both external and internal, with a pinion type of cutter. However, certain ‘inherent errors’ are present in the process which limit the range of the number of teeth on the gear to be cut. This paper deals with the analysis of inherent errors and suggests guidelines to avoid such errors, taking into account the effect of tip-relief angle
2 citations
Patent•
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20 Apr 1983
TL;DR: In this article, the work gear and a cutter gear are rotated in a vertical direction to minimize the size of the unit and make the setup of a work gear to a work head ever so easier.
Abstract: PURPOSE:To miniaturize the size of a unit as well as to make the setup of a work gear to a workhead ever so easier, by directing rotating central axes of the work gear and a cutter gear to the vertical direction, while subjecting the work gear to a cantilever support CONSTITUTION:A cutter head 38 is moved to the left and a cutter gear 40 is meshed with a work gear 10 If engagement between them fails and their tooth- tops touch with each other, a workhead 2 rotates centering on a pin 6, operating a limit switch 31, and engagement process is repeated with the work gear 10 rotated If engagement is all right, compressed oil is fed to a hydraulic cylinder 26 and an engaging part 22 of the workhead 2 touches a pad 24 of a bed 4, so that the bed 4 is kept in position Next, the cutter gear 40 is rotated while the cutter head 38 is moved to the left and gear surface shaving is achieved When a carrier 34 touches a stopper 33, the shaving comes to an end
1 citations
01 Oct 1983
TL;DR: In this article, the effective profile of the rack-type and pinion-type gear shaping cutters for spur gears has been analyzed and corrected to obtain a profile close to the theoretical form on grinding the rake face.
Abstract: Gear shaping cutters are provided with top-relief and rake angles. As a result of this, the profile representing the cutting edge is modified. This paper deals with the method of obtaining the effective profile on the rack-type and pinion-type cutters for spur gears. Analysis of the effective profile shows that the effective profile of the rack-type cutter is actually a straight-sided tooth form with different pressure angle and tooth thickness at the reference (pitch) line. In the case of the pinion-type cutter, tooth thinning takes place and the effective profile could not be identified with any involute form.This paper also deals with the methods of correcting the cutter profile form so that profile close to the theoretical form can be obtained on grinding the rake face. This approach would be quite useful to the designers and manufacturers of the shaping cutters.
1 citations