1. Field of the Invention
The present invention relates to a machine for automatically assembling parts, and more particularly, to a machine for automatically assembling parts positioned on a carrier in a predefined positional relationship.
2. Description of the Prior Art
An automatic assembling machine conventionally assembles parts onto a chassis supported by a carrier. Generally, one unit supplies the parts and another unit, distinct from the parts supplier, supplies the chassis to the carrier. An automatic assembling machine sequentially picks up the parts from the parts supplier and assembles them on the chassis transported by the carrier.
Automatic assembling machines of this type are widely used in manufacturing different kinds of equipment. However, most of these assembling machines are designed and built to assemble only one piece of equipment, and can not be easily changed to accommodate changes in the equipment or changes in the manufacturing process. When a change does occur in the type of equipment to be manufactured or in the manufacturing process, significate changes must be made in the working unit, requiring large expenditures in labor and time.
The positioning of the working units with respect to the direction of movement of the moving table which supports the carrier is another drawback of conventional assembling machines. Generally, the working units are not positioned to cooperate with movements of the moving table in the execution of the sequential assembly steps. The movable table must make a number of movements to position the parts with respect to the working units for the subsequent assembly, increasing the time for assembly and contributing to low efficiency of operation.