Component transferring apparatus and ic handler

Abstract

A component transferring apparatus includes a shuttle; an inspection socket; a retaining device that moves between the shuttle and the inspection socket; a pressing device included in the retaining device to hold and transfer an electronic component; a position adjusting device that moves the pressing device to correct a position of the electronic component based on an image processing of image data obtained by photographing of the electronic component; a socket mark provided near the inspection socket; a hand mark provided on the retaining device such that the hand mark is positioned near the socket mark when the retaining device is moved to a mounting position where the electronic component hold by the pressing device is mounted in the inspection socket; a first camera provided on the shuttle to photograph a single image including the electronic component hold by the pressing device and the hand mark provided on the retaining device; a second camera that photographs a single image including the socket mark and the inspection socket and a single image including the socket mark and the hand mark of the retaining device moved to the mounting position; a first relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the socket mark and the inspection socket to obtain a first relative position between the socket mark and the inspection socket; a second relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the socket mark and the hand mark located at the mounting position to obtain a second relative position between the socket mark and the hand mark; and a third relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the electronic component and the hand mark to obtain a third relative position between the hand mark and the electronic component, wherein based on the first, the second, and the third relative positions, the position adjusting device corrects the position of the electronic component to mount the electronic component in the inspection socket.

1 . A component transferring apparatus, comprising:
 a shuttle;   an inspection socket;   a retaining device that moves between the shuttle and the inspection socket;   a pressing device included in the retaining device to hold and transfer an electronic component;   a position adjusting device that moves the pressing device to correct a position of the electronic component based on an image processing of image data obtained by photographing of the electronic component;   a socket mark provided near the inspection socket;   a hand mark provided on the retaining device such that the hand mark is positioned near the socket mark when the retaining device is moved to a mounting position where the electronic component hold by the pressing device is mounted in the inspection socket;   a first camera provided on the shuttle to photograph a single image including the electronic component hold by the pressing device and the hand mark provided on the retaining device;   a second camera that photographs a single image including the socket mark and the inspection socket and a single image including the socket mark and the hand mark of the retaining device moved to the mounting position;   a first relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the socket mark and the inspection socket to obtain a first relative position between the socket mark and the inspection socket;   a second relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the socket mark and the hand mark located at the mounting position to obtain a second relative position between the socket mark and the hand mark; and   a third relative-position calculating unit that performs an image processing of data obtained by photographing of the single image including the electronic component and the hand mark to obtain a third relative position between the hand mark and the electronic component,   
     wherein based on the first, the second, and the third relative positions, the position adjusting device corrects the position of the electronic component to mount the electronic component in the inspection socket. 
   
   
       2 . The component transferring apparatus according to  claim 1 , further comprising a first mirror that is provided on the retaining device so as to reflect the socket mark and the hand mark located at the mounting position in a direction of the second camera and a second mirror that reflects the socket mark and the inspection socket in the direction of the second camera at a reflecting position above the inspection socket, 
     wherein the second camera is located at a position where the single image including the socket mark and the inspection socket cannot be directly photographed and also located at a position where the single image including the socket mark and the hand mark located at the mounting position cannot be directly photographed, as well as the second camera photographs the single image including the socket mark and the hand mark via the first mirror located at the mounting position and also photographs the single image including the socket mark and the inspection socket via the second mirror located at the reflecting position. 
   
   
       3 . The component transferring apparatus according to  claim 1 , wherein the shuttle includes the first camera, and the retaining device and the shuttle move to a first photographing position where the first camera photographs the single image including the electronic component and the hand mark, so as to allow the first camera to photograph the single image including the electronic component and the hand mark at the first photographing position. 
   
   
       4 . The component transferring apparatus according to  claim 1 , wherein the socket mark has a circular shape and the hand mark has an annular shape larger than the socket mark, so as to locate the socket mark in the annular hand mark at the mounting position. 
   
   
       5 . The component transferring apparatus according to  claim 1 , wherein the socket mark includes at least two socket marks, and the hand mark is provided so as to correspond to each of the socket marks. 
   
   
       6 . The component transferring apparatus according to  claim 1 , wherein the socket mark has a rectangular shape and the hand mark has a rectangular frame-like shape larger than the socket mark, so as to locate the socket mark in the frame-like hand mark at the mounting position. 
   
   
       7 . The component transferring apparatus according to  claim 1 , wherein the first relative-position calculating unit obtains the first relative position from an average of first relative position values already obtained by a predetermined number of times of calculations, and the second relative-position calculating unit obtains the second relative position from an average of second relative position values already obtained by a predetermined number of times of calculations. 
   
   
       8 . The component transferring apparatus according to  claim 1 , wherein when the second camera photographs the single image including the socket mark and the hand mark, the retaining device allows a distance between the hand mark and the second camera to be equal to a distance between the socket mark and the second camera. 
   
   
       9 . The component transferring apparatus according to  claim 8 , wherein the hand mark is shorter than the socket mark, and the retaining device moves to the mounting position before moving to a position where the distance between the hand mark and the second camera is equal to the distance between the socket mark and the second camera. 
   
   
       10 . The component transferring apparatus according to  claim 1 , wherein the third relative-position calculating unit obtains the third relative position every time the electronic component is mounted in the inspection socket; the first relative-position calculating unit obtains the first relative position every predetermined number of times of calculations for the third relative position; and the second relative-position calculating unit obtains the second relative position every predetermined number of times of calculations for the third relative position. 
   
   
       11 . The component transferring apparatus according to  claim 1 , wherein the third relative-position calculating unit obtains the third relative position every time the electronic component is mounted in the inspection socket; the second relative-position calculating unit obtains the second relative position every time the electronic component is mounted in the inspection socket; and the first relative-position calculating unit calculates the first relative position every predetermined number of times of calculations for the third relative position. 
   
   
       12 . The component transferring apparatus according to  claim 1 , wherein the third relative-position calculating unit obtains the third relative position every time the electronic component is mounted in the inspection socket; the first relative-position calculating unit obtains the first relative position every predetermined number of times of calculations for the third relative position; and the second relative-position calculating unit obtains the second relative position when the electronic component has been transferred to the mounting position. 
   
   
       13 . An IC handler comprising the component transferring apparatus according to  claim 1 .