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US 12,611,742 B2Granted
Fastening arrangement for a processing machine
AssigneeGröBner Fertigungs GmbH
InventorAndreas Gröbner
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AssigneeGröBner Fertigungs GmbH
InventorAndreas Gröbner
Estimating the term…
A constraining assembly for a processing machine (1) is proposed that has a plate-shaped base (2) with at least one receiving hole (3) and at least one constraining bolt (4) for directly or indirectly constraining workpieces that are to be processed, wherein the constraining bolt (4) is placed in the receiving hole (3) in the base such that it can be removed therefrom, and wherein the base (2) has a receiving space (5) in which there is at least one actuating element (6) that can move axially, with which numerous lever elements (7) can be actuated to axially move the constraining bolt (4) in the receiving hole (3) in order to clamp and secure, or release, the constraining bolt (4). A constraining bolt (4) for a constraining assembly, as well as a processing machine (1) with such a constraining assembly, and a method for operating the constraining assembly, are also proposed.
A constraining assembly for a processing machine that has a plate-shaped base with at least one receiving hole and at least one constraining bolt for directly or indirectly constraining workpieces that are to be processed, wherein the constraining bolt is placed in the receiving hole in the base such that the restraining bolt can be removed therefrom, comprising the improvement wherein the base has a receiving space in which there is at least one actuating element that can move axially, with which a plurality of lever elements are configured to axially move the constraining bolt in the receiving hole in order to clamp and secure, or release, the constraining bolt, and further comprising the improvement wherein each of the lever elements has a supporting segment dedicated to the actuating element where said lever element pivots on the actuating element, a first bracing segment dedicated to the base, and a second bracing segment dedicated to a cover element on the base, and a bearing segment facing the constraining bolt for moving the constraining bolt axially in the receiving hole in the base in order to clamp and secure the constraining bolt in place, or to release the constraining bolt.
A constraining bolt for a constraining assembly for a processing machine that has a plate-shaped base with at least one receiving hole and at least one constraining bolt for directly or indirectly constraining workpieces that are to be processed, wherein the constraining bolt is placed in the receiving hole in the base such that the restraining bolt can be removed therefrom, wherein the base has a receiving space in which there is at least one actuating element that can move axially, with which a plurality of lever elements are configured to be actuated to axially move the constraining bolt in the receiving hole in order to clamp and secure, or release, the constraining bolt, wherein the constraining bolt has a circumferential bearing surface forming a step encompassing the constraining bolt, which has a predetermined angle in relation to the longitudinal axis, at which a force is applied to the constraining bolt in order to draw the constraining bolt inward in the axial direction.
A processing machine that has at least one constraining assembly having a plate-shaped base with at least one receiving hole and at least one constraining bolt for directly or indirectly constraining workpieces that are to be processed, wherein the constraining bolt is placed in the receiving hole in the base such that the constraining bolt can be removed therefrom, comprising the improvement wherein the base has a receiving space in which there is at least one actuating element that can move axially, with which a plurality of lever elements are configured to be actuated to axially move the constraining bolt in the receiving hole in order to clamp and secure, or release, the constraining bolt, and wherein each of the lever elements has a supporting segment dedicated to the actuating element where said lever element pivots on the actuating element, a first bracing segment dedicated to the base, and a second bracing segment dedicated to a cover element on the base, and a bearing segment facing the constraining bolt for moving the constraining bolt axially in the receiving hole in the base in order to clamp and secure the constraining bolt in place, or to release the constraining bolt.
A method for operating a constraining assembly for a processing machine that has a plate-shaped base with at least one receiving hole and at least one constraining bolt for directly or indirectly constraining workpieces that are to be processed, wherein the constraining bolt is placed in the receiving hole in the base such that the restraining bolt can be removed therefrom, wherein the base has a receiving space in which there is at least one actuating element that can move axially, with which a plurality of lever elements are configured to be actuated to axially move the constraining bolt in the receiving hole in order to clamp and secure, or release, the constraining bolt, comprising the improvement wherein the method comprises the steps of the at least one actuating element being pretensioned to define a pretensioned actuating element, the constraining bolt in the constraining assembly being held in place by a bearing surface and a respective one of the lever elements bearing thereon in a receiving space in the base when clamped and secured in place, via the pretensioned actuating element, wherein in order to move the constraining bolt axially in a released state, a pressurized medium is introduced into the receiving space, such that the pretensioned actuating element is moved counter to the pretensioning, resulting in a pivoting of the respective one of the lever elements, and releasing the constraining bolt, and wherein after removing the medium, the released constraining bolt is again secured in place due to the pretensioning of the pretensioned actuating element acting thereon.
Dependencies are inferred from the claim text.