摘要:
Safety tool for supporting and holding an interchangeable utensil (1), which includes a holding clip (4), hinged to the utensil support body (2) joined to the beam, the said clip being pushed on one side, while on the other side there are teeth (411, 412, 414) facing the utensil support body, and of which a tooth is used for holding a safety hook (6) and a lower tooth (412) presses against the outer side of a spring (7) for lifting the hook. The safety hook, being positioned between the holding clip and the utensil support body, has a seat (61) on one side, along which the said first tooth of the holding clip is inserted, while on the other side, there is a hooking terminal (62) with a leading plane, that is inserted inside a groove (13), preferably of the type for utensils with a standard shank (12).
摘要:
Fork of the self-centring oscillating type, particularly for the bending angle measuring, in a pressbrake comprising at least a fork provided along a matrix or a matrix fractioned element, able to detect the real inclination of the two specular planes of a pressed-bent sheet-plate, each having two detection points, one of which is static and known, and the other one is dynamic, said fork comprising a forked end and a relative shank which interacts with a position transducer, communicating with a data processing logic unit which controls the pressbrake, said fork being hinged in correspondence of said shank top.
摘要:
A press-bending machine to bend metal sheets, having improved features in the respective press-bending with measuring and control system operating on at least four points of the bending angle, of the type in which the press-bending machine has: an upper vertically reciprocal elongated bending punch (2, 101); a lower static elongated bending matrix (5-102) with at least a longitudinal bending groove (5'-102'); feeler means to measure the respective bending movement of the metal sheet in bending inside said bending groove, to control by data process logic unit the bending parameters of bending process in said bending machine, said feeler means operating with at least four bending detection points, characterized in that all said detecting points are conceived in such a way to be divided in two sets of bend detecting points, one to one side (6-9''; Rc-Rt left ; 18'; 108'-107'; 109'-1010') and one to the other side (7-9'''; Rc-Rt right ; 18''; 108-107; 109''-1010'') and in symmetrical way divided in number and position respective to the vertical plane passing along the respective sheet bending line corresponding with the bending corner of the resulting bent sheet.
摘要:
In order to increase the clamping force on a piece of sheet metal to be machined and the productivity of a press brake that bends it, a method is proposed to lock the piece (L) on a mobile loader suitable for positioning the piece on the press brake, in which a clamping force is applied to the piece having a direction that is substantially parallel to a longer dimension of the piece.
摘要:
A pressing-bending machine with a device for detecting the lower and upper cross-members deflection, aimed at interacting with at least one crowning system, essentially made up of means suitable for detecting the elastic deformation on the lower and/or upper cross-member (1, 4) vertical axis recorded during the plate pressing-bending active phase, said means, supplying the machine management logic unit with a higher or lower value respect to an upper cross-member reference value, from this depending the intervention of at least the crowning system, and also in which, said means, being active on both cross-members, comprise a part engaged to the action cross-member and a part, interconnected with the first one, integral with a fixed external cross-member independent from the action cross-member, comprising a means (8) for detecting and communicating the deflection relative to this latter with respect to the fixed external cross-member.
摘要:
Safety tool for supporting and holding an interchangeable utensil (1), which includes a holding clip (4), hinged to the utensil support body (2) joined to the beam, the said clip being pushed on one side, while on the other side there are teeth (411, 412, 414) facing the utensil support body, and of which a tooth is used for holding a safety hook (6) and a lower tooth (412) presses against the outer side of a spring (7) for lifting the hook. The safety hook, being positioned between the holding clip and the utensil support body, has a seat (61) on one side, along which the said first tooth of the holding clip is inserted, while on the other side, there is a hooking terminal (62) with a leading plane, that is inserted inside a groove (13), preferably of the type for utensils with a standard shank (12).
摘要:
Fork of the self-centring oscillating type, particularly for the bending angle measuring, in a pressbrake comprising at least a fork provided along a matrix or a matrix fractioned element, able to detect the real inclination of the two specular planes of a pressed-bent sheet-plate, each having two detection points, one of which is static and known, and the other one is dynamic, said fork comprising a forked end and a relative shank which interacts with a position transducer, communicating with a data processing logic unit which controls the pressbrake, said fork being hinged in correspondence of said shank top.
摘要:
Bending pressing machine (A), in which the following is provided: at least one cylinder comprising essentially two heads (3, 4), lower one and upper one and an external jacket (5) held by said heads, welded to the shoulder (a') of the pressing machine's frame (a), and in which while the first one (3) provides connection means (6, 6') for the cylinder feeding, the second one (4) supports a corresponding removable flange (8) allowing the extraction of an internal jacket (7); sideways of the crosspiece (1) for the support of the tool (2), at least two guide points respectively, a first one concerning the upper part of the crosspiece obtained out of a fork-like shape (10) obtained from one of said two heads, and a second one provided along the crosspiece in intermediate position, obtained by engaging to the pressing machine's shoulder, on the top and perpendicularly, a guide (12), provided on both sides with a surface (11) with a low friction coefficient, to which is superimposed, one part of a gib (13), being in its turn associated with the corresponding end of the tool-carrier crosspiece.
摘要:
In order to improve the centring of a piece (L) on a loading area (60, 62) from which a loader (24) picks it up to bend it with a press brake (22), the piece is moved from a position in which it arrives in the area to a position in which it has an orientation that is predefined in an obligatory manner.
摘要:
A pressing-bending machine with a device for detecting the lower and upper cross-members deflection, aimed at interacting with at least one crowning system, essentially made up of means suitable for detecting the elastic deformation on the lower and/or upper cross-member (1, 4) vertical axis recorded during the plate pressing-bending active phase, said means, supplying the machine management logic unit with a higher or lower value respect to an upper cross-member reference value, from this depending the intervention of at least the crowning system, and also in which, said means, being active on both cross-members, comprise a part engaged to the action cross-member and a part, interconnected with the first one, integral with a fixed external cross-member independent from the action cross-member, comprising a means (8) for detecting and communicating the deflection relative to this latter with respect to the fixed external cross-member.