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US 3,965,718 AGranted
Transfer mechanism
AssigneeThe National Machinery Company
InventorGaylen O. Kline
Life of this patent
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AssigneeThe National Machinery Company
InventorGaylen O. Kline
Estimating the term…
A transfer for a forging machine is disclosed which is operable to progressively transfer workpieces laterally between spaced die stations on a die breast of the machine. The transfer mechanism includes first and second assemblies, each including transfer arms which are positioned on either side of the die stations closely adjacent to the plane of the die breast. The transfer arms are mounted for arcuate movement about parallel axes to provide opening and closing. Lengthwise movement of the arms is provided for the transfer of a gripped part and for return of the grippers. Each transfer arm carries workpiece grippers having finger end portions operable to grip workpieces at each die station as the transfer arms are translated toward each other. Guides are provided to cause the finger end portions of the workpiece grippers to follow paths substantially parallel to the plane of the die breast. In one illustrated embodiment the assemblies are pivoted on axes which are parallel to the face of the die breast and in another illustrated embodiment the assemblies are pivoted on axes perpendicular to the face of the die breast.
A transfer for forging machines or the like comprising a frame, a pair of opposed assemblies with each assembly including a support member pivoted on said frame for arcuate movement about a pivot axes parallel to the pivot axes of the other support member, an elongated arm mounted on each support member for lengthwise movement relative to its associated support member, each elongated arm having a cantilever end section, workpiece grippers mounted on the end sections operable to grip a workpiece at one transfer location and to transport such workpiece to another transfer location, and drive means operable to pivot said assemblies about their respective pivot axes to open and close said grippers and to produce lengthwise movement of said arms to move said grippers between said transfer locations, the direction of said lengthwise movement of said arms being parallel when said grippers are closed on a workpiece, the mounting of each elongated arm on its associated support being at a support location to one side of said transfer locations in the direction of the length of said elongated arms, and said cantilever end sections extending from said support location to said transfer locations.
A workpiece forging machine or the like having a die bed providing a plurality of die stations spaced therealong in a direction of transfer, a transfer mechanism operable to progressively transfer workpieces in said direction of transfer between said die stations, said transfer mechanism including a pair of opposed assemblies each pivoted at locations spaced from said die stations for arcuate movement about axes which are parallel to each other, each assembly including an elongated arm supported laterally to one side of said dies for lengthwise movement and providing a cantilever end section extending to a location adjacent to said die stations, cooperating workpiece grippers mounted on said end sections of each arm, a first drive operable to pivot said assemblies about their respective pivots in opposite directions to move said grippers toward and away from each other for gripping and releasing a workpiece, a second drive operable to simultaneously move said arms in the direction of their length to cause said grippers to move back and forth between adjacent die stations, said lengthwise movement of each arm being parallel to said transferred direction when said grippers grip and transfer a workpiece between said die stations.
In a clockwise forging machine having a die breast provided with a plurality of laterally spaced die stations, a transfer assembly operable to progressively transfer workpieces laterally between said die stations, said transfer assembly including first and second transfer arms, means mounting said transfer arms for arcuate translation about parallel axes spaced from said die stations, means to drive said transfer arms through said arcuate translation toward and away from each other, workpiece gripping means supported and carried by each transfer arm and having finger end portions operable to grip workpieces at each die station as said transfer arms are translated toward each other, means for guiding each of said finger end portions substantially parallel to the plane of said die breast during the arcuate translation of said transfer arms, and means for translating said gripping means laterally between adjacent die stations.
In a workpiece forging machine having a die breast provided with a plurality of laterally spaced die stations, a transfer assembly operable to progressively transfer workpieces laterally between said die stations, said transfer assembly including first and second transfer arms positioned closely adjacent to the plane of the die breast, means mounting said transfer arms for arcuate translation about parallel axes spaced from said die stations, means to drive said transfer arms through said arcuate translation toward and away from each other, workpiece gripping means carried by each transfer arm and having finger end portions operable to grip workpieces at each die station as said transfer arms are translated toward each other, means for guiding said finger end portions substantially parallel to the plane of said die breast during the arcuate translation of said transfer arms, said means for guiding said finger end portions comprising first and second projections respectively fixed to said first and second transfer arms being received by guide means operable to guide the projecting ends of said arms in planes parallel to the plane of said die breast upon arcuate translation of said transfer projections, and means for translating said gripping means laterally between adjacent die stations.
Dependencies are inferred from the claim text.