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US 6,658,913 B1Granted
Multistage metal-forming machine tool having tool combination blocks
AssigneeHatebur Umformmaschinen AG
InventorsHermann Zanzerl, Markus Moser
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AssigneeHatebur Umformmaschinen AG
InventorsHermann Zanzerl, Markus Moser
Estimating the term…
In a multistage forming machine, an apron is screwed to a press slide. At its upper end, the apron has six elongated clamping cams, distributed over its width, while four upwardly projecting clamping lugs are fitted at is lower end. Suspended in the apron is a combined tool block with a wedge-shaped supporting plate. Four clamping lugs, distributed over the width, are formed at the upper end of the supporting plate, while four clamping cams are formed at the lower end. The clamping lugs of the combined tool block are suspended by means of the clamping cams of the apron, while the clamping cams of the combined tool block are inserted between the clamping lugs and the main part of the apron. By means of two clamping devices, a clamping force acting in the vertical direction of the combined tool block is produced, bringing about a clamping of the combine tool block and the press slide in the horizontal direction.
Multi-stage forming machine comprising a first combined tool block fitted on a body which is a fixed machine body and a second combined tool block fitted on a body which is a press slide which can be moved back and forth relative to said first combined tool block, the first and second combined tool blocks each having individual tool blocks connected to a common supporting structure, the individual tool blocks of the first combined tool block interacting with the individual tool blocks of the second combined tool block, wherein at least one of said combined tool blocks has a clamping lug and the body corresponding to said at least one of said combined tool blocks has a clamping cam, said at least one of said combined tool blocks being suspended on said clamping cam, said clamping lug having a bearing face for said clamping cam and said clamping cam having a bearing face for said clamping lug, wherein at least one of the bearing faces is inclined relative to a vertical direction so that when a vertically downwardly-directed force is exerted on said at least one combined tool block, said clamping lug is bent resiliently outward by said clamping cam so as to produce a clamping force in a horizontal direction.
Combined tool block for a multi-stage forming machine having a fixed machine body and a press slide which can be moved back and forth relative to the fixed machine body, said combined tool block comprising at least two individual tool blocks connected to a common supporting structure and a resilient clamping lug adapted to rest on a clamping cam fitted either on the machine body or on the press slide, thereby suspending said combined tool block from the clamping cam.
Dependencies are inferred from the claim text.