KISSsoft 3D gear models offer alternative process; training course offered


The manufacturing of complex workpieces, such as gears on five-axis milling machines, has increasingly established itself as an alternative production process. Precise 3D data is a requirement for this type of production. KISSsoft can output exact 3D models, which can then undergo further processing with CAD and/or CAM software.

Measurement grid reports have been provided to help you measure the topology of the flank and root areas of the toothing. These grids are output directly in the correct format for Klingelnberg or Gleason measuring machines. The measurement grid calculation can be called up for cylindrical gears, helical gears, face gears, worm wheels, and involute splines (module ZZ5).

The 3D models in KISSsoft are available in both STEP and Parasolid formats. The models can also be exported as individual tooth forms for CAM generation (module CB1). 

An introductory training course on “Calculation of Gears, Shaft Bearings, Transmissions with GPK” is offered from November 6–8, 2018, in Bubikon, Switzerland.

Cylindrical gears: The program can output cylindrical gears with straight and helical flanks, as well as pinion and racks, including all possible flank modifications.

In addition to the standard range of modifications specified in ISO 21771:2007, such as crowning, and profile crowning, helix angle modification, and different types of tip and root relieves, you can also apply freely definable topological modifications. Different modifications can be defined for right and left flanks independently for optimum running performance for each flank.

Skin model to verify contact pattern: The skin model (surface display) makes it easier to verify the load-free contact lines in every meshing position. You can also vary the predefined parameters, such as the axis deviation error, axis inclination error, and center distance to simulate actual assembly condition. Furthermore, a 3D model for pre-machining can be output, which is calculated using a protuberance tool and the required machining stock.

Bevel gears with straight, helical, and spiral toothings (tooth depth configurations according to ISO 23509) are available. The cutting methods specified by Klingelnberg (cyclo-palloid®) and Gleason (“face hobbing” and “face milling”) for spiral teeth are provided. You can apply lead and profile crowning, pressure angle and helix angle modification, as well as the twist and the topological modification, for either the driving or driven flank asymmetrically. All these modifications are then applied to the 3D model directly. The pre-machining steps can also be output as a model. 

Worm gears: The program outputs 3D models with a cylindrical worm with enveloping worm wheel. The tooth profile for worm is calculated according to ISO/TR 10828:2015. This technical report provides uniform description for the tooth profile types of A, I, N, K and C. The cutter and cutting process modification of worm wheel includes an option for inputting an oversize worm wheel cutter and modifying the cutter pressure angle and shaft angle to optimize the contact pattern, and therefore improve the running performance.

Face gears: Face gears and pinions can also be output as 3D models. The 3D models used for pinions have the same functionality as those for cylindrical gears.

Beveloid gears: Beveloid gears, also called conical gears, are generated by using a rack-like tool tilted in a pre-defined angle. The usual flank modifications, such as helix angle modification or negative crownings, are available to help you optimize tooth contact in a 3D model. Tooth contact can then be verified using the graphical contact analysis method, and the models can be exported for downstream processes, such as FE analysis and 5-axis milling.

3D export options: The 3D models in KISSsoft are available in both STEP and Parasolid formats. The models can also be output simply as a single tooth form for the CAM generation.

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