Polishing device

Abstract

A polishing device is used for polishing at least one workpiece and includes a bracket, at least one loading device, a number of polishing tools having different roughness, a number of first driving devices, a supporting device, and a second driving device. The at least one loading device is positioned on the bracket, and is used for loading the at least one workpiece. Each first driving device is used for driving a respective one of the polishing tools to rotate to polish one workpiece. The supporting device is connected to the bracket, and is used for loading the polishing tools and the first driving devices. The second driving device is connected to the supporting devices, and is used for driving the supporting device to rotate to select a proper one of the polishing tools.

1 . A polishing device for polishing at least one workpiece, comprising:
 a bracket;   at least one loading device positioned on the bracket, and configured for loading the at least one workpiece;   a plurality of polishing tools having different roughness;   a plurality of first driving devices, each first driving device configured for driving a respective one of the polishing tools to rotate to polish one of the at least one workpiece;   a supporting device connected to the bracket, and configured for loading the polishing tools and the first driving devices; and   a second driving device connected to the supporting devices, and configured for driving the supporting device to rotate to select a proper one of the polishing tools.   
     
     
         2 . The polishing device of  claim 1 , wherein the bracket comprises a base and two parallel fixing frames fixed on two opposite surfaces of the base, the base has a platform, the loading devices are positioned on the platform. 
     
     
         3 . The polishing device of  claim 2 , wherein the base defines a cleaning tank, the platform defines at least one opening communicating with the cleaning tank. 
     
     
         4 . The polishing device of  claim 3 , wherein each of the at least one loading device comprises a loading plate and a driving element, the loading plate comprises a first main body and a first shaft on one edge of the first main body, the first shaft is rotatably positioned on the platform, the driving element is connected to the first shaft and is configured for driving the first main body to rotate around the first shaft to be received in the cleaning tank through a respective one of the at least one opening after the at least one workpiece has been polished. 
     
     
         5 . The polishing device of  claim 4 , wherein the bracket further comprises at least one pair of fixing plates, each pair of fixing plates are opposite to each other, and are positioned on the platform, each fixing plate defines a mounting hole, two ends of the first shaft are received in the two mounting holes of a corresponding pair of fixing plates. 
     
     
         6 . The polishing device of  claim 4 , wherein the first main body defines a fixing groove for fixing a workpiece. 
     
     
         7 . The polishing device of  claim 2 , wherein each of the two fixing frames comprises a mounting plate, a first supporting plate, and a second supporting plate, the first supporting plate and the second supporting plate perpendicularly extend from two opposite edges of the mounting plate. 
     
     
         8 . The polishing device of  claim 7 , wherein the polishing device further comprises at least one nozzle spatially corresponding to the at least one loading device, the at least one nozzles are positioned on the mounting plates and is configured for spraying polishing liquid to the at least one workpiece. 
     
     
         9 . The polishing device of  claim 7 , wherein the polishing device further comprises a horizontal driving device, the horizontal driving device comprises a stator and a rotator, one end of the stator is positioned between the two first supporting plates, the other end of the stator is positioned between the two second supporting plates, and thus the stator is aligned with the platform, the rotator is capable of moving along the stator. 
     
     
         10 . The polishing device of  claim 9 , wherein the polishing device further comprises a vertical driving device positioned on the rotator, the vertical driving device comprises a vertical motor and two opposite rotating plates, the vertical motor comprises a tubular second main body and a second shaft extending through the second main body, an outer sidewall of the second shaft has a protrusion along the axial direction of the second shaft, each of the two rotating plate comprises a third rectangular main body and a ring covering one end of the second shaft, an inner sidewall of the ring defines a receiving groove receiving the protrusion, one corner of the third main body protrudes a block, the supporting device is rotatably connected between the blocks of the two rotating plates. 
     
     
         11 . The polishing device of  claim 10 , wherein the supporting device comprises a first clamping plate and a second clamping plate aligned with the first clamping plate, the first clamping plate defines a through hole at the center thereof, and a plurality of first mounting grooves around the through hole, the second clamping plate defines a plurality of second mounting grooves corresponding to the first mounting grooves respectively; each first driving device comprises a fourth main body and a third shaft rotatably positioned on the fourth main body, the fourth main body is received in a corresponding first mounting groove, the third shaft is configured for connecting to one end of a corresponding polishing tool, each second mounting groove is configured for receiving the other end of the corresponding polishing tool. 
     
     
         12 . The polishing device of  claim 11 , wherein each block defines a pinhole; a surface of the second clamping plate facing away the first clamping plate has a connecting shaft; the second driving device comprises a fourth shaft and a fifth main body for driving the fourth shaft to rotate, the fourth shaft extends through the pinhole of one block and the through hole, the connecting shaft is received in the pinhole of the other one block.