Rolling machine capable of forming different types of teeth simultaneously

Abstract

A rolling machine for performing a rolling of different types of teeth mounted on a shaft, is provided with a forming die including a first section and a second section provided with a camming profiled circumferential surface of 360 degree. The circumferential surface is divided into a guide surface of a predetermined angle, a gradual forming surface of a predetermined angle, a finishing section surface of a predetermined angle, and a rotation stop section surface of a predetermined angle, which are angularly positioned in that order on the circumferential surface. The rolling machine is also provided with a power transmitting device for transmitting and disconnecting a driving force to the forming die and a position detecting sensor for controlling a stop timing of the forming die.

What is claimed is:  
     
         1 . A rolling machine for performing a rolling of different types of teeth mounted on a shaft, the machine comprising: 
 a forming die including a first section and a second section provided with a camming profiled circumferential surface of 360 degree, the circumferential surface being divided into a guide surface of a predetermined angle, a gradual forming surface of a predetermined angle, a finishing section surface of a predetermined angle, and a rotation stop section surface of a predetermined angle, which are angularly positioned in that order on the circumferential surface;    a power transmitting device for transmitting and disconnecting a driving force to the forming die; and    a position detecting sensor for controlling a stop timing of the forming die.    
     
     
         2 . The rolling machine of claims  1 , wherein the guide surface has a same curvature and ranges from 80 degree to 100 degree in the circumferential surface of 360 degree.  
     
     
         3 . The rolling machine of claims  1 , wherein the gradual forming surface has a crest of the tooth which has its height higher along the circumference from an initial point toward a completion point.  
     
     
         4 . The rolling machine of claims  1 , wherein the gradual forming surface ranges from 125 degree to 145 degree in the circumferential surface of 360 degree.  
     
     
         5 . The rolling machine of claims  1 , wherein the gradual forming surface is eccentrically formed to have a radius from a central axis which becomes larger in 0.02 mm increment from tooth to tooth.  
     
     
         6 . The rolling machine of claims  1 , wherein the tooth profile of the finishing section surface is same as that of a completion point of the gradual forming surface.  
     
     
         7 . The rolling machine of claims  1 , wherein the finishing section surface has a range from 80 degree to 100 degree in the circumferential surface of 360 degree.  
     
     
         8 . The rolling machine of claims  1 , wherein the rotation stop section surface is formed between an angular range about 35 to 55 degree in the circumferential surface of 360 degree.  
     
     
         9 . The rolling machine of claims  1 , wherein the rotation stop section surface does not have a tooth for performing the rolling of the tooth.  
     
     
         10 . The rolling machine of claims  1 , wherein the power transmitting device includes a driving motor for generating the driving force, a driving shaft receiving the driving force from the driving motor, a clutch for connecting and disconnecting the driving force from the driving shaft, and a brake for stopping the rotation of the driving shaft.  
     
     
         11 . The rolling machine of claims  1 , wherein the position detecting sensor includes a driving force disconnecting sensor positioned at the initial point of the rotation stop section surface, and a stop check sensor positioned at a center portion of the rotation stop section surface.