Electric-component handling device

1. An electric-component handling device comprising:

a suction nozzle including (a) a nozzle body, and (b) a suction pipe extending from said nozzle body;

a fiducial mark disposed at a predetermined position relative to said suction pipe;

an image-taking device operable to take an image of an electric component held by suction by said suction pipe, and an image of said fiducial mark, in a longitudinal direction of said suction pipe;

a relative-movement device operable to move said image-taking device and said suction nozzle relative to each other, in at least a direction intersecting said longitudinal direction of said suction pipe, so as to pass a relative position therebetween at which said electric component held by said suction pipe and said fiducial mark are concurrently located within a field of vision of said image-taking device; and

an image data processing device operable to process said images of said electric component and said fiducial mark taken by said image-taking device, for obtaining a relative position between said fiducial mark and said electric component, and to obtain a position of said electric component relative to a nominal position of said suction pipe, on the basis of the obtained relative position between said fiducial mark and said electric component, and a known relative position between said fiducial mark and said nominal position of said suction pipe.

2. The electric-component handling device according to claim 1 , wherein said fiducial mark is disposed on said nozzle body such that said fiducial mark is spaced from said suction pipe in a radial direction of said suction pipe.

3. An electric-component handling device comprising:

a suction nozzle including (a) a nozzle body, and (b) a suction pipe extending from said nozzle body and a sucking end;

a fiducial mark disposed at a predetermined position relative to said suction pipe;

an image-taking device operable to take a set of images of an end face of said sucking end of said suction pipe and said fiducial mark, and a set of images of an electric component held by said suction pipe and said fiducial mark, in a longitudinal direction of said suction pipe;

a relative-movement device operable to move said image-taking device and said suction nozzle relative to each other, in at least a direction intersecting said longitudinal direction of said suction pipe, to a relative position therebetween at which said suction nozzle and said image-taking device are opposed to each other; and

an image data processing device operable to process said images of said end face of said suction pipe and said fiducial mark taken by said image-taking device, for detecting a relative position between said end face and said fiducial mark, and to process said images of said electric component and said fiducial mark, for determining a peripheral profile of said end face of said suction pipe which partially projects beyond a peripheral profile of said electric component, on the basis of the detected relative position between said end face and said fiducial mark, and obtaining a position of said electric component relative to a nominal position of said suction pipe, while taking account of the determined peripheral profile of said end face of said suction pipe.

4. The electric-component handling device according to claim 3 , wherein said fiducial mark is disposed on said nozzle body such that said fiducial mark is spaced from said suction pipe in a radial direction of said suction pipe.

5. An electric-component handling device comprising:

a suction nozzle including (a) a nozzle body, and (b) a suction pipe extending from said nozzle body and a sucking end;

a fiducial mark disposed at a predetermined position relative to said suction pipe;

an image-taking device operable to take an image of an end face of said sucking end of said suction pipe and said fiducial mark, in a longitudinal direction of said suction pipe;

a relative-movement device operable to move said image-taking device and said suction nozzle relative to each other, in at least a direction intersecting said longitudinal direction of said suction pipe, to a relative position therebetween at which said suction nozzle and said image-taking device are opposed to each other; and

an image data processing device operable to process said images of said end face of said suction pipe and said fiducial mark taken by said image-taking device, to obtain a relative position between said fiducial mark and said end face, and to detect a bending of said suction pipe on the basis of the obtained relative position between said fiducial mark and said end face.

6. The electric-component handling device according to claim 5 , wherein said fiducial mark is disposed on said nozzle body such that said fiducial mark is spaced from said suction pipe in a radial direction of said suction pipe.

7. An electric-component handling device comprising:

a suction nozzle including (a) a nozzle body, and (b) a suction pipe extending from said nozzle body and a sucking end;

a fiducial mark disposed at a predetermined position relative to said suction pipe;

an image-taking device operable to take an image of said fiducial mark in a longitudinal direction of said suction pipe;

a relative-movement device operable to move said image-taking device and said suction nozzle relative to each other, in at least a direction intersecting said longitudinal direction of said suction pipe, to a relative position therebetween at which said suction nozzle and said image-taking device are opposed to each other; and

an image data processing device operable to process said image of said fiducial mark taken by said image-taking device, to determine an angular position of said suction pipe.

8. The electric-component handling device according to claim 7 , wherein said fiducial mark is disposed on said nozzle body such that said fiducial mark is spaced from said suction pipe in a radial direction of said suction pipe.