摘要:
A clamp (10) having a pneumatic cylinder (28) with an actuating rod (30) connected to one end of a drive arm (32) which has its other end attached to a crankshaft (19) which in turn has crankpins (20,22) eccentrically mounted thereon to drive inner and outer clamp arms (24,26) between retracted and advanced positions corresponding to open and closed positions of the clamp. The length of the drive arm (32), the extent to which the crankpins (20,22) are offset from the crankshaft (19), the specific portion of a quadrant through which the crankpins are rotated, and the distance between the application of the force to the clamp arms and the axes about which the clamp arms pivot all provide a significant mechanical advantage and an extremely large clamping force from relatively low pressure compressed air supplied to the pneumatic cylinder (28).
摘要:
Vorrichtung zum Drehen und Kippen eines Spannstockes (14), bei der in drei übereinander angeordneten Ebenen, unabhängig voneinander, ein Drehen und Kippen des Spannstockes (14) zur Einstellung einer vorbestimmten Lage durchführbar ist. In der unteren Ebene wird auf einer Grundplatte (1) mit einer oberen horizontalen Auflagefläche (1a) eine kreisförmige Drehplatte (3) angeordnet, die horizontal drehbar auf einer vertikal zu der Auflagefläche (1a) verlaufenden Vertikalachse (4) gelagert ist. In der darüber liegenden mittleren Ebene wird die Drehplatte (3) mit einem Querkipplager (7) versehen und in der oberen Ebene die Unterseite des Spannstockes (14) als ein Längskipplager (9) ausgebildet.
摘要:
The aim of the invention is to improve a gripping device comprising a guiding rail, a first gripping element resting on the guiding rail with a first gripping surface formed by a pressure piece of a gripping spindle and moveable in the gripping direction, a sliding clamp guided on the guiding rail, moveable along said rail and fixable by a first jamming element and an advance device which has a second jamming element which can rest on the guiding rail and a pivoted advance lever with its handle between the guiding rail and the gripping spindle clamping grip and a second gripping element resting on the guiding rail with a second gripping surface in a such a way that it can be applied to a work piece more effectively in ergonomic terms and that the work piece can be gripped completely. To this end, it is suggested that the advance lever should operate with a first pressure element between the second jamming element and the sliding clamp in such a way that when the advance lever is activated in the direction of the gripping spindle clamping grip, the sliding clamp is displaceable in relation to the second jamming element in the gripping direction.
摘要:
A work stop (56) for use on a machine vise (10) is received in a jaw plate (20,22) for such vise (10) and is securely locked in position. The work stop (56) is fixed in a groove (58) that is machined int a top edge of the jaw plate (20,22) or jaw, with a member (57) extending over the edge of the jaw plate (20,22) and adjacent the face of the jaw plate (20,22) that is used for clamping a workpiece. This permits the workpiece to be slid against the stop (56) before being clamped. The jaw plate (20,22) is removable mounted onto a fixed jaw (18) and is located precisely relative to the fixed jaw (18) so that the jaw plate (20,22) with the work stop (56) attached an be removed, and then replaced when the same part is to be machined again.
摘要:
A removable quick change jaw plate (38) for a vise (10) has a T-slot that receives a pull rod that extends into a bore formed in the vise jaw (26, 28). The pull rod is actuated to pull the jaw plate (38) toward the vise (10). A wedge clamp, actuated by a threaded element provides a clamping motion to hold the jaw plate (38) on the vise (10).
摘要:
Das Flachspanngerät zum gleichzeitigen Einspannen mehrerer Werkstücke weist eine feste Mittelbacke sowie zwei durch eine längsverschiebbare Spindel verbundene Endbacken auf. Eine die Spindel umgebende Schraubenfeder drängt sie in Richtung ihrer Antriebsseite, um beim progressiven Anziehen der Spindel einen federbelasteten Druck auf mindestens ein zwischen der auf der entgegengesetzten Seite befindlichen Endbacke und der Mittelbacke eingesetztes Werkstück auszuüben bevor sämtliche Werkstücke durch die Kraft der Spindel zwischen den Backen fixiert sind.
摘要:
Eine Haltevorrichtung für Werkstücke weist einen Spannbacken, der seinerseits eine Vielzahl von im Querschnitt kreisförmigen, parallel zueinander ausgerichteten, seitlich aneinander anliegenden und in ihrer Haupterstreckungsrichtung einzeln verschiebbaren Spannstiften (3), einen die Spannstifte (3) seitlich umgreifenden Rahmen und eine Fixiereinrichtung zum Fixieren der Spannstifte (3) gegenüber dem Rahmen durch eine seitliche Fixierkraft aufweist. An der dem Werkstück abgewandten Rückseite der Spannstifte (3) ist ein offener Druckraum (17) vorgesehen. Durch Freiräume zwischen den Spannstiften (3) kann Druckmedium (16) aus dem Druckraum (17) auf das jeweilige Werkstück hin austreten.
摘要:
Disclosed herein is a tool for swaging a bearing into an opening in a bearing housing, which apparatus is operable in confined spaces, such as in an aircraft application. The tool has a threaded elongated member or bolt that extends through the bore of the bearing. The tool also has a roller fixture assembly adapted to be positioned on one side of the bearing and positioned on one end of the elongated member. The roller fixture assembly has a number of rollers and a roller fixture shell that supports the rollers for engagement with the bearing to swage the bearing against the bearing housing. The bearing swaging tool also has a locating fixture assembly adapted to be positioned on the opposite side of the bearing from the roller fixture assembly. The locating fixture assembly is supported on the other end of the elongated member and includes a locating fixture with a first side adapted to be positioned against the bearing and bearing housing. The locating fixture assembly includes means for selectively controlling the amount of axial movement of the locating fixture with respect to the elongated member in response to rotation of the elongated member with respect to the bearing.
摘要:
There are disclosed an element (200) for gripping metal (20) to be stretched by a stretcher leveller apparatus (10), which comprises a high density cast polyurethane gripping pad (202) adapted for engagement with the metal (20) to be stretched: characterized in that it includes: an essentially rectangular support plate (204) having a first planar support surface (206) upon which the gripping pad (202) is chemically bonded and which can support in excess of 544,368 Kg of force applied to it to stretch the metal; and also an element (200) for gripping metal (20) to be stretched by a stretcher leveller apparatus (10), which comprises a high density cast polyurethane gripping pad (202) adapted for engagement with the metal (20) to be stretched: characterized in that it includes: an essentially rectangular support plate (204) having a first planar support surface (206) upon which the gripping pad (202) is chemically bonded, said plate having ends (111) through which the support plate (204) is connected to the stretcher leveller apparatus (10), said pad (202) being disposed between said ends (111).