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US 2018/0001427 A1Published application
Clamping device
AssigneeErowa AG
InventorHans Hediger
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AssigneeErowa AG
InventorHans Hediger
Estimating the term…
A clamping device includes a clamping chuck and a clamping element, which can be clamped thereto. The clamping chuck has a receiving opening for the clamping element and clamping members for clamping the clamping element in the receiving opening. The clamping element is elongated, while the clamping chuck is provided with an elongated receiving opening for the clamping element. A resiliently flexible centering element, which aligns the clamping element in response to the insertion into the receiving opening at right angles to the longitudinal axis of the receiving opening, is arranged on the clamping chuck in the insertion area of the receiving opening. Such a clamping device is suitable in clamping systems by means of which large to very large workpiece carriers can be clamped in the work area of a machine tool in a repeatably accurate manner.
A clamping device comprising a clamping chuck and a clamping element, which can be clamped thereto, wherein the clamping chuck has a receiving opening for the clamping element and clamping members for clamping the clamping element in the receiving opening, characterized in that the clamping element is embodied in an elongated manner and the clamping chuck is provided with an elongated receiving opening for the clamping element, and that at least one resiliently flexible centering element, which aligns the clamping element in response to the insertion into the receiving opening at right angles to the longitudinal axis (L) of the receiving opening, is arranged on the clamping chuck in the insertion area of the receiving opening.
A clamping system comprising at least two clamping chucks, which are to be arranged so as to be offset relative to one another on a clamping support, in particular at least three clamping chucks, which are to be arranged on a clamping support so as to be offset relative to one another at an angle of 60°, 72°, 90° or 120°, and a corresponding number of clamping elements, which are to be arranged on a workpiece carrier in a corresponding manner, wherein the respective clamping chuck has a receiving opening for a clamping element and clamping members for clamping the clamping element in the receiving opening, characterized in that the clamping elements as well as the receiving openings of the clamping chucks are embodied in an elongated manner, and at least two clamping chucks in the insertion area of the receiving opening are provided with a resiliently flexible centering element, which align the respective clamping element at right angles to the longitudinal axis of the receiving opening in response to the insertion into the receiving opening.
A clamping arrangement comprising a lower clamping part and a workpiece carrier, wherein the lower clamping part has at least four clamping chucks and the workpiece carrier comprises a number of clamping elements corresponding thereto, by means of which the workpiece carrier can be repeatedly clamped to the lower clamping part at an exact position, characterized in that the clamping elements are embodied in an elongated manner and the respective clamping chuck is provided with an elongated receiving opening for the clamping element, wherein at least two clamping chucks in the insertion area of the receiving opening are provided with a resiliently flexible centering disk, which have an elongated centering opening for the respective clamping element, in order to align the respective clamping element in one direction in response to the insertion into the receiving opening, and wherein the receiving opening of the clamping chuck as well as the centering opening are longer than the clamping element.
Dependencies are inferred from the claim text.