Back to results
US 4,168,644 AGranted
Reciprocating tool machine particularly for stamping or nibbling
AssigneeTrumpf Maschinen AG
InventorsBerthold Leibinger, Hans Klingel
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeTrumpf Maschinen AG
InventorsBerthold Leibinger, Hans Klingel
Estimating the term…
A machine, particularly for stamping or nibbling, comprises a reciprocating tool drive having a plurality of tools connected to the drive for selective reciprocation thereof. The drive includes means for stopping at least one of the tools for exchange purposes and a tool-change member is mounted for movement alongside the tool drive and includes a member movable transversely to the reciprocation direction for engaging and removing a tool which is stopped or disconnected from the drive in order to effect an exchange with another tool without stopping the drives of these other tools. The machine also includes means for engaging and moving a workpiece transverse to the reciprocating direction. One or more tools may be exchanged by the use of a movable conveyor magazine which carries a plurality of tool sets along its length which are selectively positionable into alignment with a fluid-pressure operated piston and cylinder combination having means for engaging a tool which is aligned therewith and positioning it in a location for engagement by the reciprocating drive for the tools of the machine.
A machine having a reciprocating tool, comprising a drive motor having a continuously operable drive shaft, a plurality of reciprocating rams, a tool associated with each ram and mounted for movement at fixed individual locations and each being connectable to an associated ram for reciprocation therewith, a connection drive between said drive shaft and said rams for selectively driving each of said rams to cause the selective reciprocation thereof and to permit stopping of said rams, means for clamping a workpiece in the path of movement of said tools, said connection drive including means for disconnecting the drive of at least one ram while the remaining rams are reciprocated, and tool change means disposed alongside said tools including a member movable into engagement with a tool which is not being reciprocated by said ram to withdraw it for removal and substitution by a new tool while the others are reciprocated.
A machine, particularly a stamping or nibbling machine, which is capable of being operated selectively and alternatively with a plurality of different tools which may be interchanged without stopping the machine, comprising a support frame, a reciprocating tool drive mounted on said frame, a plurality of movable tools connected to said drive mounted on said frame at fixed spaced locations in position for selective reciprocation by said tool drive and for selective stopping and change purposes of at least one of said tools, coupling means connected between said tool drive and said tools for selectively connecting and disconnecting said tools from said tool drive for respectively moving and stopping said tools, a tool change member mounted alongside said tool drive and movable transversely to said tool drive for engaging and removing a tool therefrom which is stopped in order to effect a change of said tool with another tool, said reciprocating drive including at least two reciprocating members, one of said members being reciprocatable with a tool while the other of said reciprocating members being stopped to exchange the tools and vice versa, a workpiece holder, and means for moving said workpiece holder in a plane disposed transversely to the path of reciprocating movement of said tool.
Dependencies are inferred from the claim text.