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| Number | Title | Issue Date |
| 6371898 | Tool-change system for a machine tool with a number of machining heads The tools of the various machining heads are housed on a common drum, which is remote from the heads and rotated to select a given row of tools. At each head, there is provided and intermediate station having a container housing a row of tools; and a shut... | 04/16/2002 |
| 6231279 | Drilling machine with at least two machining heads for machining printed circuit boards The drilling machine has a cross member along which slide two carriages supporting two machining heads; the two carriages are moved independently of each other along the X axis; one of the two machining heads is fitted to the respective carriage by means ... | 05/15/2001 |
| 6098274 | Machine tool featuring a number of machining heads for machining printed circuit boards The machine tool featuring a number of machining heads for machining printed circuit boards has a worktable movable along the Y axis, and two rows of four machining heads fitted to a common carriage movable along the X axis. The circuit boards are arrange... | 08/08/2000 |
| 6059704 | System for selecting tools from a tool store of a machine tool for machining printed circuit boards The machine has a device for exchanging tools between a tool store and the spindle of a machining head carried by a carriage movable along the X axis; the store has a number of locations for the tools arranged in a matrix of rows and columns; a worktable ... | 05/09/2000 |
| 5882286 | Drilling unit for printed circuit boards having two operating heads The drilling unit comprises a cross-piece secured to the base and two carriages supporting said two operating heads and sliding on said cross-piece. The two carriages are each displaced independently of one another along the axis by means of two nut and s... | 03/16/1999 |
| 5711641 | Method and device for loading and unloading printed circuit boards on a machine tool The device presents a number of supports associated with a number of machining heads and located at the front of the machine. For each machining head, the supports are located on two superimposed surfaces for respectively supporting a pack of boards for l... | 01/27/1998 |
| 5584788 | Machine for mechanically machining boards, in particular printed circuit boards A machine presenting a worktable movable along a first axis; and a crosspiece fitted with a number of machining heads and movable along a second axis perpendicular to the first axis. The crosspiece presents a box structure, and two end portions guided on ... | 12/17/1996 |
| 5539966 | Machining head for machining boards A machining head presenting a hollow body in turn presenting a first crosspiece with a seat for supporting in sliding manner a motor-driven tool spindle. The body also presents a second crosspiece fitted with means for axially displacing the spindle which... | 07/30/1996 |
| 5407416 | Automatic tool change device for printed circuit board machines The tool store comprises a prismatic drum having a number of cells in which the tools may be inserted singly or housed inside a magazine; and the tool change device comprises a pair of clamps operated singly and fitted to the work table. The clamps are mo... | 04/18/1995 |
| 5354153 | Machine tool part loading and unloading method and device particularly for machining printed circuit boards On a drilling machine for drilling packs of printed circuit boards, the packs are loaded and unloaded between a support and the work table by engaging a pin on the pack via a pair of jaws and by moving the table longitudinally. The pack is retained by a b... | 10/11/1994 |
| 5326177 | Perfected air pad An air pad comprising a body with two opposite faces, and having a number of supporting orifices on one face and at least one compensating orifice on the other face, each compensating orifice being located on a micropad comprising a plate integral with a ... | 07/05/1994 |
