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Method and apparatus for handling parts
| Details |
Inventors: Hellstern, Richard;
Assignee: American Telephone and Telegraph Company, AT&T Technologies, Inc. (Berkeley Heights, NJ)
Primary Examiner: Eley; Timothy V.
Assistant Examiner: Arbes; Carl J.
Attorney, Agent or Firm: Levy; Robert B.
Individual components (12) in a tube (14) are successively removed and then riented for pickup by first positioning the tube, whose ends are opened, in a horizontal orientation such that the components in the tube are upside down. Thereafter, a component is at least partially expelled from one end of the tube by directing a stream of gas (e.g., air) into the other end of the tube. The component partially expelled from the tube is then withdrawn from the tube to locate the component between a pair of jaws (124) capable of rotation about an arc of 180.degree.. The jaws then engage the component and thereafter rotate it 180.degree. before positioning the component right side up. |
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DETAILED DESCRIPTION FIG.
1 illustrates an apparatus 10, in accordance with the invention, for removing a component 12 (best seen in FIG.
2) from a shipping tube 14 and then orienting the component for pickup by a pickup device 16, such as a robot.
The robot 16, in turn, places the component 12 on a circuit board (not shown) for bonding (e.
g.
, soldering) thereto in a well-known manner.
The components 12 stored in each tube 14 are typically each prismatic in shape and have a set of leads 18 which depend from the bottom thereof.
Typically the components 12 are stored in each tube 14 that the leads 18 of the components are aligned with each other.
As seen in FIG.
1, the apparatus 10 comprises a frame 20 which rests on a supporting surface 22.
The frame 20 has an upper, flat surface 24, extending through which is a magazine 26 comprised of a carrier rack 28 which is secured within a housing 30 that is slidably mounted within the frame for vertical movement along an axis 31.
The carrier rack 28 within the housing 30 serves to hold a plurality of the tubes 14 so that each is spaced horizontally one above the other.
To accommodate different tubes 14 having lengths greater than that of the housing 30, a vertical slot 32 is provided in the rearward or right-hand end 34 of the housing, as seen in FIG.
1, so that the ends of the tubes can protrude therebeyond.
The tubes 14 are each loaded in the carrier rack 28 so that the components 12 in each tube are upside down (i.
e.
, their leads 18 are facing vertically upward).
Prior to laoding the tubes 14 in the rack 28, the ends of each tube, which are normally sealed by a rubber stopper (not shown), are opened by removing the stopper.
It is necessary for the ends of the tubes 14 to be opened in order for the apparatus 10 to remove the individual components 12 from each tube.
As shown in FIG.
1, inside the frame 20 there is a motorized lead screw 36 which engages a lead nut 37 on the housing 30.
As the lead screw 36 is rotated, the housing 30 moves vertically along the axis 31
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