forging machine for sale-china-machineparts.com

A forging machine for reducing the cross section area of a workpiece which is positioned on the forging axis of the machine, i.e., the direction of travel of the workpiece through the machine. Four, forging saddles are arranged at intervals around the forging axis, a driving mechanism for each forging saddle and arranged to impart a thrust through its forging saddle in a lateral direction with respect to the forging axis. A guiding arm is associated with each driving mechanism an forging saddle for guiding the thrust of the forging saddle, each guiding arm being inclined at an angle to the direction of thrust of its associated forging saddle and being pivotally mounted about an axle which is parallel to the forging axis. Each forging saddle is adjustably connected to its guiding arm so that its position relative to the guiding arm can be adjusted either parallel to or transversely of the direction of thrust of the forging saddle. This arrangement enables the cross-sectional area of forged bars produced in such a machine to be adjusted.

1. Forging parts for reducing the cross-sectional area of a workpiece, said machine comprising means defining a predetermined path for the workpiece to travel through said machine, said path being called the forging axis, four forging saddles positioned at intervals around said forging axis, a machine support frame, a driving mechanism for each forging saddle and for imparting a thrust to said forging saddle in a lateral direction with respect to said forging axis, means mounting each of said driving mechanisms on said machine support frame, a guiding arm associated with each driving mechanism and forging saddle for guiding said thrust of said forging saddle, adjustable connection means connecting each forging saddle to one end of its associated guiding arm whereby said forging saddle is adjustable in position relative to said guiding arm, axle means for each guiding arm mounted on said machine support frame and extending parallel to said forging axis, means pivotally mounting each guiding arm on its axle means at its end remote from said forging saddle, each of said guiding arms being inclined at an angle to the direction of the thrust of its associated forging saddle, said adjustable connection means of alternate forging saddles to their guiding arms enable each alternate forging saddle to be adjustable in position relative to its guiding arm in a direction parallel to its direction of thrust, and wherein said adjustable connections for the intermediate forging saddles to their guiding arms enable each of said intermediate forging saddles to be adjustable in position relative to its guiding arm transversely with respect to its direction of thrust.

2. A forging machine as claimed in claim 1, wherein each of said adjustable connection means connecting alternate forging saddles to their guiding arms whereby each of said alternate forging saddles is adjustable relative to its guiding arm in a direction parallel to the direction of thrust of said forging saddle comprises a screw threaded spindle mounted on said forging saddle, a rotary internally threaded bush engageable with said screw threaded spindle, means mounting said rotary internally threaded bush on said guiding arm whereby said bush is rotatable but not axially movable relative to said guiding arm, a motor for rotatably driving said internally threaded bush, and bevel gear means drivingly connecting said motor to said internally threaded bush, whereby said spindle is caused to move axially to adjust the position of said forging saddle when said motor rotates said internally threaded bush through said bevel gear mechanism.

3. A forging machine as claimed in claim 1, wherein each of said adjustable connection means which is associated with a forging saddle which is adjustable in position relative to its guiding arm transversely with respect to a direction of the forging thrust of said forging saddle comprises a forked end piece forming the free end of the associated guiding arm, transverse flange means on said forging saddle, bearing surfaces on said forked end piece slidably supporting said transverse flange means, a projection on said forging saddle projecting into said forked end piece, means defining an internally threaded drilling in said projection, a screw threaded spindle engageably mounted in said forked end piece and engaging in said internally threaded drilling, Printing machine parts a motor mounted on said guiding arm for driving said screw threaded spindle, and a straight gear mechanism drivingly connecting said motor and said screw threaded spindle whereby rotation of said screw threaded spindle by said motor causes said forging saddle to move transversely.