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1. (WO1979000117) BAYONET CLAMPING APPARATUS FOR MACHINE TOOLS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000117 International Application No.: PCT/US1978/000073
Publication Date: 08.03.1979 International Filing Date: 28.08.1978
IPC:
B23Q 1/38 (2006.01) ,B23Q 3/10 (2006.01) ,B25B 5/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
1
Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
25
Movable or adjustable work or tool supports
26
characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
38
using fluid bearings or fluid cushion supports
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
3
Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine
02
for mounting on a work-table, tool-slide, or analogous part
10
Auxiliary devices, e.g. bolsters, extension members
B PERFORMING OPERATIONS; TRANSPORTING
25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
B
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
5
Clamps
06
Arrangements for positively actuating jaws
Applicants:
Inventors:
Priority Data:
82935831.08.1977US
Title (EN) BAYONET CLAMPING APPARATUS FOR MACHINE TOOLS
(FR) DISPOSITIF DE FIXATION A BAIONNETTE POUR MACHINE-OUTIL
Abstract:
(EN) Apparatus for clamping a workpiece or workpiece fixture (32) to a machine tool, and in particular to a bayonet clamping system which is suitable for use with work tables when the fixture is floatingly supported on a film of pressurized air during movement from one machining position to another. More specifically, the table (28) has a surface (30) adapted to support a workpiece or fixture (32) which includes a plurality of openings (66) and removable covers (192) thereon. This arrangement overcomes the problem of having chips and other debris from collecting in the openings (66) and also prevents the loss of pneumatic pressure in machine tables of the air float type. A plurality of similar hydraulic pistons (96) mounted within the table (28) are adapted to be connected to locking pins (128). Clamp bars (186) are secured to the top of the pins (128) and suspended between support blocks (184) and the workpiece or fixture (32). This arrangement allows selective clamping pressure to be applied to the workpiece or fixture (32) at any point desired.
(FR) Dispositif pour fixer une piece a usiner ou son support sur une machine-outil en particulier pour fixer cette piece ou support a l"aide d"un systeme de fixation a baionnette sur une table de travail ou la piece ou le support est porte par un coussin d"air pendant son transfert, d"une position d"usinage a une autre. Plus particulierement la table de travail (28) comprend une surface (30) agencee pour porter la piece a usiner ou son support (32). Cette surface comprend une pluralite d"orifices (66) avec des couvercles amovibles. Cette disposition permet de resoudre le probleme que pose l"accumulation des copeaux et autres debris dans les ouvertures (66) et pare a une perte de pression dans une table de travail a coussin d"air. Une pluralite de pistons hydrauliques (96) identiques, montes dans la table de travail sont agences pour etre relies a des chevilles de verrouillage. Des barrettes d"immobilisation (186) sont fixees aux extremites superieures de ces chevilles et sont suspendues entre des blocs supports (184) et la piece ou son support (32). Cette disposition permet d"appliquer sur la piece ou son support (32), en un point librement choisi, la pression de serrage voulue.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)