Electronic component mounting apparatus

Abstract

This invention is directed to prevention of reduction of a pickup rate of an electronic component when a component feeding unit is dismounted from a feeder base and mounted back thereon. A CPU sends a feeding command to a component feeding unit feeding an electronic component belonging to a first step number, and drives a servomotor and a drive motor of the feeding unit to perform a component feeding operation and so on. After then, when the CPU judges that the feeding unit is dismounted from the feeder base and mounted back thereon, the CPU drives a X axis drive motor and a Y axis drive motor to move a board recognition camera to the pickup position of the feeding unit, the camera takes an image of a storage portion of a storage tape, and a recognition processing device performs recognition processing to the image. A correction value based on this recognition result is stored in a RAM, the X axis drive motor and the Y axis drive motor are driven taking this correction value into account, a vertical axis drive motor is driven, and a suction nozzle lowers and picks up the electronic component.

1 . An electronic component mounting apparatus comprising: 
 a feeder base;    a component feeding unit disposed on the feeder base and feeding electronic components stored in a storage tape so that each of the electronic components is advanced to a component pickup position where a suction nozzle is configured to pick up the electronic component fed by the component feeding unit for mounting the electronic component on a printed board;    a seam detection device provided for the component feeding unit and detecting a connection tape connecting two storage tapes;    a counter counting the feeding of the electronic components to the component pickup position after the seam detection device detects the connection tape;    a recognition camera taking an image of one of storage concave portions of the storage tape storing the electronic components therein when the counting of the feeding reaches a predetermined number;    a recognition processing device performing a recognition processing to the image taken by the recognition camera; and    a control device adjusting the component pickup position based on a result of the recognition processing of the recognition processing device.    
   
   
       2 . The electronic component mounting apparatus of  claim 1 , further comprising a memory device storing a pickup success rate of the electronic components calculated for the component feeding unit, wherein the recognition camera takes an image of another of the storage concave portions when the pickup success rate of the component feeding unit is lower than a predetermined value so that the recognition processing and the pickup position adjustment are performed.  
   
   
       3 . The electronic component mounting apparatus of  claim 1 , further comprising a detection device detecting a mounting of the component feeding unit on the feeder base, wherein the recognition camera takes an image of another of the storage concave portions when the detection device detects the mounting of the component feeding unit so that the recognition processing and the pickup position adjustment are performed.  
   
   
       4 . An electronic component mounting apparatus comprising: 
 a feeder base;    a component feeding unit disposed on the feeder base and feeding electronic components stored in a storage tape so that each of the electronic components is advanced to a component pickup position where a suction nozzle is configured to pick up the electronic component fed by the component feeding unit for mounting the electronic component on a printed board;    a detector provided for the component feeding unit and detecting a pickup error of the electronic component by the suction nozzle;    a counter provided for the component feeding unit and counting the pickup errors;    a recognition camera taking an image of one of storage concave portions of the storage tape storing the electronic components therein when the counting of the pickup errors reaches a predetermined number;    a recognition processing device performing a recognition processing to the image taken by the recognition camera; and    a control device adjusting the component pickup position based on a result of the recognition processing of the recognition processing device.    
   
   
       5 . The electronic component mounting apparatus of  claim 4 , further comprising a memory device storing a pickup success rate of the electronic components calculated for the component feeding unit, wherein the recognition camera takes an image of another of the storage concave portions when the pickup success rate of the component feeding unit is lower than a predetermined value so that the recognition processing and the pickup position adjustment are performed.  
   
   
       6 . The electronic component mounting apparatus of  claim 4 , further comprising a detection device detecting a mounting of the component feeding unit on the feeder base, wherein the recognition camera takes an image of another of the storage concave portions when the detection device detects the mounting of the component feeding unit so that the recognition processing and the pickup position adjustment are performed.  
   
   
       7 . An electronic component mounting apparatus comprising: 
 a feeder base;    a component feeding unit disposed on the feeder base and feeding electronic components stored in a storage tape so that each of the electronic components is advanced to a component pickup position where a suction nozzle is configured to pick up the electronic component fed by the component feeding unit for mounting the electronic component on a printed board;    a monitoring device keeping track of the electronic components remaining in the storage tape and providing a prompt when the remaining electronic components reach a predetermined number;    a recognition camera taking an image of one of storage concave portions of another storage tape storing the electronic components therein after all electronic components of the storage tape are picked up;    a recognition processing device performing a recognition processing to the image taken by the recognition camera; and    a control device adjusting the component pickup position based on a result of the recognition processing of the recognition processing device.    
   
   
       8 . The electronic component mounting apparatus of  claim 7 , further comprising a memory device storing a pickup success rate of the electronic components calculated for the component feeding unit, wherein the recognition camera takes an image of one of the storage concave portions of the storage tape when the pickup success rate of the component feeding unit is lower than a predetermined value so that the recognition processing and the pickup position adjustment are performed.  
   
   
       9 . The electronic component mounting apparatus of  claim 7 , further comprising a detection device detecting a mounting of the component feeding unit on the feeder base, wherein the recognition camera takes an image of one of the storage concave portions of the storage tape when the detection device detects the mounting of the component feeding unit so that the recognition processing and the pickup position adjustment are performed.