Linear unit for transferring objects
AssigneeRobert Bosch GmbH
InventorsMarkus Langenbacher, Peter Rothfuss, Gernot Maier
Life of this patent
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Abstract
A linear unit for transferring objects, particularly for removing workpieces from a linear conveying track, comprising vertically and horizontally movable grippers for grasping the objects and comprising a gripper carriage which is movable between a pick-up position and delivery position and having first and second carriage parts, wherein the movement sequence of the grippers for receiving the objects in the pick-up position and for depositing the objects in the delivery position is effected due to relative movement of the second carriage part with respect to the first carriage part.
Claims6
A linear unit for transferring workpieces located on an assembly or manufacturing belt, said linear unit comprising a first carriage part horizontally displaceable along support structures between pick-up and delivery positions;
- a second carriage part displaceable parallel to said first carriage part and connected for movement therewith by friction contact;
- a gripper supported on said second carriage part for rotation about a vertical axis for grasping a workpiece;
- stop means ending in a displacement path of said second carriage part, said stop means shortening the displacement path of said second carriage part relative to a displacement path of said first carriage part and providing for movement of said second carriage part relative to said first carriage part when said first carriage part reaches one of the pick-up and delivery positions;
- and drive means for converting the relative movement of said first and second carriage parts into horizontal rotational and vertical movement of said gripper, said gripper including a vertical gripper arm and a gripper finger rotatably supported on said gripper arm, said drive means including a pinion fixedly supported on said gripper arm, a toothed rack associated with said first carriage part and engaging said pinion for providing a horizontal rotational movement that corresponds to one of closing and opening movements of said gripper, and coarse thread connection means arranged between said gripper arm and said gripper finger and engagable with said gripper finger for providing a vertical movement that corresponds to one of pick-up and delivery movements of said gripper.
Dependencies are inferred from the claim text.