Software for 3,4,5-AXIS CNC MACHINING OF gears

 

 Order online or:

1. Contact us with your gear data or pdf drawings. Sample drawing.

2. Purchase 3d gear tooth software. Sample IGES file.

3. Cut spiral bevel gears on 3,4-axis CNC milling machines. Example of 3-axis cutting.

 

 We supply software and 3-dimensional IGES models ( sample 1, sample 2, sample 3, sample 4) of spiral bevel and other gears. Our customers use 3d models to program 3.4,5-axis CNC machines to cut spiral bevel gears  (sample 1_1, sample 3_1

    
         

        Since 1986 we deliver 3-d CAD gear models for 3,4,5-axis CNC gear milling of spiral bevel, hypoid and other gears. Commonly known as Gleason or Klingelnberg gears and other gears have been modeled and produces on 3.4-axis CNC for a number of customers including Mil Helicopter, Volvo, General Motors, Chrysler, Rolls-Royce, Metso Minerals and other. Since 1999 we have been advertising Direct Digital Simulation method for 3-dimensional gear tooth modeling.

       Spiral Bevel Co uses a gear tooth modeling process that provides better quality of the hardened tooth surface compare to the hard cutting process known as Klingelnberg. The better process offers faster soft and more accurate hard cutting of case hardened 64 HRc tooth surface. Our 3-dimensional tooth contact simulation software is used for design and inspection.  While the traditional gear manufacturing methods require iterations in contact pattern development, our manufacturing method is more accurate so we produce required tooth contact pattern from the first cut.    

     Prediction of the contact pattern is based on mathematical algorithms that calculate the position, motion, and geometry of the gears and the contact area with high accuracy.  More accurate tooth contact calculation reduces manufacturing cost because no extra gears are needed for the contact pattern development.Spiral bevel kilngelnberg pinion MP1000 Metso crusher
 
 
      Traditional manufacturing of spiral bevel gears involves iterations for the development of the tooth contact. The first calculated summary for Gleason or for Klingelnberg machine is not the best machine summary for achieving the best contact pattern. Gleason, Klingelnberg and other companies have developed advanced software for reduction of the number of iterations during the contact pattern development. Achieving the correct tooth contact in first iteration on machines from Gleason or from Klingelnberg is still difficult.
Klingelnberg gear spiral bevel
      Our Tooth Contact software predicts an exact tooth contact what a CNC cutting machines produce. Our process does not require iterations in contact pattern development because 3,4,5-axis machines cut the gears to the exact geometry in the first iteration.
Compare to the traditional process, 3,4,5-axis CNC gear cutting process is less complicated. The simplified process results in simplification of the simulation software and reduction of manufacturing errors.
 
       Our TCA software allows to predict the tooth contact before machining, so we can correct design before gears are cut.   

 
  Besides software and 3d CAD models of gears we are offering services of detail examination of the existing gears and then we correct the design, tooth geometry and tooth contact. When examining existing gears we often find hidden errors in tooth geometry. Detection of the hidden defects would be impossible by the traditional inspection methods. In practice, we can examine a spiral bevel gear by taking a points on CMM and then we reverse engineer the original Gleason or Klingelnberg machine summary in order to discover that, often, the original summary may need to be corrected in order to produce a correct contact pattern.

     The previously popular theory of gears was based on formula NV=0.

     In 1986-1991, while working as a gear manufacturing engineer at MIL helicopter company, Dr. Lunin proposed an alternative theory of gears.
The new theory helped to calculate more accurate Gleason machine summary.
   By Lunin's theory, the fundamental formula of tooth generating (NV=0) was not required for mathematical modeling and simulations of spiral bevel or other gears. An alternative theory, Direct Digital Simulation (DDS) method has been proposed and successfully applied for spiral bevel gear production for helicopter gears.     

      Historically, spiral bevel gears have been produced on Klingelnberg or on
Gleason machines by generating method.
The disadvantage of the historical gear manufacturing machines is that they are limited by the boundaries of the old gear theory.
 3,4-axis CNC gear cutting process is more flexible in modification of the tooth surface and it offers a higher quality.

Because we accurately calculate  3-dimensional geometry of the gear tooth we can accurately calculate stresses with help of Finite Element Method (FEM or FEA).

 

 

In result, we offer higher load capacity gear design.

 The traditional spiral bevel generating machines often develop problems of interference in the root area. The traditional CMM spiral bevel inspection software offered by Gleason or by Klingelnberg inspects the only portion of the tooth that comes to the contact.

 Our software calculates the entire tooth geometry including the tooth root. Correct calculation of the tooth root improves strength of gears. In addition to the root stress optimization our digital simulation methods allow better optimization of the tooth contact pattern.

 

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