Cam lapping processing apparatus

Abstract

A cam lamping processing apparatus for immediately responding for general purpose includes a supporter configured to rotatably support opposite end portions of a reference shaft and a processing shaft, an interworker configured to rotate the reference shaft and the processing shaft to be interoperable with each other, and a lapping processor configured to process a processed cam installed on the processing shaft by replicating a profile of a master cam installed on the interoperated reference shaft.

What is claimed is: 
     
         1 . A cam lapping processing apparatus comprising:
 a supporter configured to rotatably support opposite end portions of a reference shaft and a processing shaft;   an interworker configured to rotate the reference shaft and the processing shaft to be interoperable with each other; and   a lapping processor configured to process a processed cam installed on the processing shaft by replicating a profile of a master cam installed on the interoperated reference shaft.   
     
     
         2 . The cam lapping processing apparatus according to  claim 1 , wherein the supporter includes a first sidewall and a second sidewall configured to fix opposite ends of the reference shaft and processing shaft installed in parallel to each other, and a base configured to connect the first and second sidewalls. 
     
     
         3 . The cam lapping processing apparatus according to  claim 1 , wherein:
 a pint hole is formed at one side end of each of the reference shaft and the processing shaft; and   the supporter includes a driving axis inserted into the pin hole so as to synchronize rotation displacements of the two shafts.   
     
     
         4 . The cam lapping processing apparatus according to  claim 1 , wherein the other side end of each of the reference shaft and the processing shaft is engaged and fixed by a centering that is moved backward and forward in an axis direction in the supporter. 
     
     
         5 . The cam lapping processing apparatus according to  claim 3 , wherein the interworker includes a geared belt that winds geared pulleys respectively formed on the two driving axes. 
     
     
         6 . The cam lapping processing apparatus according to  claim 5 , wherein the interworker further includes a motor connected to any one of the two driving axes to rotate the driving axis. 
     
     
         7 . The cam lapping processing apparatus according to  claim 1 , wherein the lapping processor includes:
 a roller configured to move backward and forward with respect to the reference shaft according to a profile of the master cam of the reference shaft and to rotate while being in contact with a surface of the master cam; and   a brush configured to be interoperable with an operation of the roller of moving backward and forward with respect to the reference shaft according to the profile of the master cam and to lapping-process a surface of a processed cam while being in contact with a surface of the processed cam of the processing shaft.   
     
     
         8 . The cam lapping processing apparatus according to  claim 7 , wherein the roller and the brush are fixed to a bracket and an arm fixed thereto, respectively. 
     
     
         9 . The cam lapping processing apparatus according to  claim 8 , wherein a position of the arm is adjusted with respect to the bracket. 
     
     
         10 . The cam lapping processing apparatus according to  claim 8 , wherein the brush rotates around a rotation axis positioned in parallel to a rotation axis of the processing shaft by a motor fixed to an arm. 
     
     
         11 . The cam lapping processing apparatus according to  claim 7 , wherein the brush reciprocates in parallel to an axis direction of the processing shaft while being rotated by a motor. 
     
     
         12 . The cam lapping processing apparatus according to  claim 11 , wherein the brush is installed on a rotor inserted into a ball screw installed in parallel to the processing shaft and moves in an axis direction of the processing shaft as a ball screw is rotated. 
     
     
         13 . The cam lapping processing apparatus according to  claim 12 , wherein the rotor includes a table installed on guides formed in parallel to each other in a longitudinal direction of a ball screw in parallel to the ball screw and moving along the guides. 
     
     
         14 . The cam lapping processing apparatus according to  claim 12 , further comprising a cylinder installed on the rotor, and configured to approximate the roller and the brush toward a shaft and to move the roller and the brush away from the shafts. 
     
     
         15 . The cam lapping processing apparatus according to  claim 12 , wherein the ball screw is rotated or reverse rotated by a motor that is rotated or is reversely rotated within a predetermined angle to reciprocate the brush in parallel to an axis direction of the processing shaft.